From 7f5028cf6190407b7a632b0f30b83187577824cc Mon Sep 17 00:00:00 2001 From: Emilio López Date: Mon, 21 Sep 2015 10:38:20 -0300 Subject: sysfs: Support is_visible() on binary attributes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit According to the sysfs header file: "The returned value will replace static permissions defined in struct attribute or struct bin_attribute." but this isn't the case, as is_visible is only called on struct attribute only. This patch introduces a new is_bin_visible() function to implement the same functionality for binary attributes, and updates documentation accordingly. Note that to keep functionality and code similar to that of normal attributes, the mode is now checked as well to ensure it contains only read/write permissions or SYSFS_PREALLOC. Reviewed-by: Guenter Roeck Signed-off-by: Emilio López Acked-by: Greg Kroah-Hartman Signed-off-by: Olof Johansson --- include/linux/sysfs.h | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 9f65758311a4..2f66050d073b 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -64,10 +64,18 @@ do { \ * a new subdirectory with this name. * @is_visible: Optional: Function to return permissions associated with an * attribute of the group. Will be called repeatedly for each - * attribute in the group. Only read/write permissions as well as - * SYSFS_PREALLOC are accepted. Must return 0 if an attribute is - * not visible. The returned value will replace static permissions - * defined in struct attribute or struct bin_attribute. + * non-binary attribute in the group. Only read/write + * permissions as well as SYSFS_PREALLOC are accepted. Must + * return 0 if an attribute is not visible. The returned value + * will replace static permissions defined in struct attribute. + * @is_bin_visible: + * Optional: Function to return permissions associated with a + * binary attribute of the group. Will be called repeatedly + * for each binary attribute in the group. Only read/write + * permissions as well as SYSFS_PREALLOC are accepted. Must + * return 0 if a binary attribute is not visible. The returned + * value will replace static permissions defined in + * struct bin_attribute. * @attrs: Pointer to NULL terminated list of attributes. * @bin_attrs: Pointer to NULL terminated list of binary attributes. * Either attrs or bin_attrs or both must be provided. @@ -76,6 +84,8 @@ struct attribute_group { const char *name; umode_t (*is_visible)(struct kobject *, struct attribute *, int); + umode_t (*is_bin_visible)(struct kobject *, + struct bin_attribute *, int); struct attribute **attrs; struct bin_attribute **bin_attrs; }; -- cgit v1.2.3-71-gd317 From 18800fc7a04e7df8a345e7ef4fc3064368276f83 Mon Sep 17 00:00:00 2001 From: Emilio López Date: Mon, 21 Sep 2015 10:38:22 -0300 Subject: platform/chrome: Support reading/writing the vboot context MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some EC implementations include a small nvram space used to store verified boot context data. This patch offers a way to expose this data to userspace. Reviewed-by: Javier Martinez Canillas Signed-off-by: Emilio López Signed-off-by: Olof Johansson --- drivers/platform/chrome/Makefile | 3 +- drivers/platform/chrome/cros_ec_dev.c | 1 + drivers/platform/chrome/cros_ec_vbc.c | 137 ++++++++++++++++++++++++++++++++++ include/linux/mfd/cros_ec.h | 1 + 4 files changed, 141 insertions(+), 1 deletion(-) create mode 100644 drivers/platform/chrome/cros_ec_vbc.c (limited to 'include') diff --git a/drivers/platform/chrome/Makefile b/drivers/platform/chrome/Makefile index 4a11b010f5d8..bc498bda8211 100644 --- a/drivers/platform/chrome/Makefile +++ b/drivers/platform/chrome/Makefile @@ -1,7 +1,8 @@ obj-$(CONFIG_CHROMEOS_LAPTOP) += chromeos_laptop.o obj-$(CONFIG_CHROMEOS_PSTORE) += chromeos_pstore.o -cros_ec_devs-objs := cros_ec_dev.o cros_ec_sysfs.o cros_ec_lightbar.o +cros_ec_devs-objs := cros_ec_dev.o cros_ec_sysfs.o \ + cros_ec_lightbar.o cros_ec_vbc.o obj-$(CONFIG_CROS_EC_CHARDEV) += cros_ec_devs.o obj-$(CONFIG_CROS_EC_LPC) += cros_ec_lpc.o obj-$(CONFIG_CROS_EC_PROTO) += cros_ec_proto.o diff --git a/drivers/platform/chrome/cros_ec_dev.c b/drivers/platform/chrome/cros_ec_dev.c index 2f4099820480..d45cd254ed1c 100644 --- a/drivers/platform/chrome/cros_ec_dev.c +++ b/drivers/platform/chrome/cros_ec_dev.c @@ -32,6 +32,7 @@ static int ec_major; static const struct attribute_group *cros_ec_groups[] = { &cros_ec_attr_group, &cros_ec_lightbar_attr_group, + &cros_ec_vbc_attr_group, NULL, }; diff --git a/drivers/platform/chrome/cros_ec_vbc.c b/drivers/platform/chrome/cros_ec_vbc.c new file mode 100644 index 000000000000..564a0d08c8bf --- /dev/null +++ b/drivers/platform/chrome/cros_ec_vbc.c @@ -0,0 +1,137 @@ +/* + * cros_ec_vbc - Expose the vboot context nvram to userspace + * + * Copyright (C) 2015 Collabora Ltd. + * + * based on vendor driver, + * + * Copyright (C) 2012 The Chromium OS Authors + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include + +static ssize_t vboot_context_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *att, char *buf, + loff_t pos, size_t count) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev, + class_dev); + struct cros_ec_device *ecdev = ec->ec_dev; + struct ec_params_vbnvcontext *params; + struct cros_ec_command *msg; + int err; + const size_t para_sz = sizeof(params->op); + const size_t resp_sz = sizeof(struct ec_response_vbnvcontext); + const size_t payload = max(para_sz, resp_sz); + + msg = kmalloc(sizeof(*msg) + payload, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + /* NB: we only kmalloc()ated enough space for the op field */ + params = (struct ec_params_vbnvcontext *)msg->data; + params->op = EC_VBNV_CONTEXT_OP_READ; + + msg->version = EC_VER_VBNV_CONTEXT; + msg->command = EC_CMD_VBNV_CONTEXT; + msg->outsize = para_sz; + msg->insize = resp_sz; + + err = cros_ec_cmd_xfer(ecdev, msg); + if (err < 0) { + dev_err(dev, "Error sending read request: %d\n", err); + kfree(msg); + return err; + } + + memcpy(buf, msg->data, resp_sz); + + kfree(msg); + return resp_sz; +} + +static ssize_t vboot_context_write(struct file *filp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t pos, size_t count) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev, + class_dev); + struct cros_ec_device *ecdev = ec->ec_dev; + struct ec_params_vbnvcontext *params; + struct cros_ec_command *msg; + int err; + const size_t para_sz = sizeof(*params); + const size_t data_sz = sizeof(params->block); + + /* Only write full values */ + if (count != data_sz) + return -EINVAL; + + msg = kmalloc(sizeof(*msg) + para_sz, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + params = (struct ec_params_vbnvcontext *)msg->data; + params->op = EC_VBNV_CONTEXT_OP_WRITE; + memcpy(params->block, buf, data_sz); + + msg->version = EC_VER_VBNV_CONTEXT; + msg->command = EC_CMD_VBNV_CONTEXT; + msg->outsize = para_sz; + msg->insize = 0; + + err = cros_ec_cmd_xfer(ecdev, msg); + if (err < 0) { + dev_err(dev, "Error sending write request: %d\n", err); + kfree(msg); + return err; + } + + kfree(msg); + return data_sz; +} + +static umode_t cros_ec_vbc_is_visible(struct kobject *kobj, + struct bin_attribute *a, int n) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct cros_ec_dev *ec = container_of(dev, struct cros_ec_dev, + class_dev); + struct device_node *np = ec->ec_dev->dev->of_node; + + if (IS_ENABLED(CONFIG_OF) && np) { + if (of_property_read_bool(np, "google,has-vbc-nvram")) + return a->attr.mode; + } + + return 0; +} + +static BIN_ATTR_RW(vboot_context, 16); + +static struct bin_attribute *cros_ec_vbc_bin_attrs[] = { + &bin_attr_vboot_context, + NULL +}; + +struct attribute_group cros_ec_vbc_attr_group = { + .name = "vbc", + .bin_attrs = cros_ec_vbc_bin_attrs, + .is_bin_visible = cros_ec_vbc_is_visible, +}; diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h index da72671a42fa..494682ce4bf3 100644 --- a/include/linux/mfd/cros_ec.h +++ b/include/linux/mfd/cros_ec.h @@ -255,5 +255,6 @@ int cros_ec_query_all(struct cros_ec_device *ec_dev); /* sysfs stuff */ extern struct attribute_group cros_ec_attr_group; extern struct attribute_group cros_ec_lightbar_attr_group; +extern struct attribute_group cros_ec_vbc_attr_group; #endif /* __LINUX_MFD_CROS_EC_H */ -- cgit v1.2.3-71-gd317 From e866a2e3950fe2f708d5cc67d641b1725ef7a708 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Thu, 1 Oct 2015 23:45:31 +0200 Subject: linux/thermal.h: rename KELVIN_TO_CELSIUS to DECI_KELVIN_TO_CELSIUS The macros KELVIN_TO_CELSIUS and CELSIUS_TO_KELVIN actually convert between deciKelvins and Celsius, so rename them to reflect that. While at it, use a statement expression in DECI_KELVIN_TO_CELSIUS to prevent expanding the argument multiple times and get rid of a few casts. Signed-off-by: Rasmus Villemoes Acked-by: Darren Hart Signed-off-by: Zhang Rui --- drivers/acpi/thermal.c | 12 ++++++------ drivers/platform/x86/asus-wmi.c | 2 +- drivers/platform/x86/intel_menlow.c | 8 ++++---- include/linux/thermal.h | 8 +++++--- 4 files changed, 16 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 30d8518b25fb..82707f9824ca 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -315,7 +315,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) if (crt == -1) { tz->trips.critical.flags.valid = 0; } else if (crt > 0) { - unsigned long crt_k = CELSIUS_TO_KELVIN(crt); + unsigned long crt_k = CELSIUS_TO_DECI_KELVIN(crt); /* * Allow override critical threshold */ @@ -351,7 +351,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) if (psv == -1) { status = AE_SUPPORT; } else if (psv > 0) { - tmp = CELSIUS_TO_KELVIN(psv); + tmp = CELSIUS_TO_DECI_KELVIN(psv); status = AE_OK; } else { status = acpi_evaluate_integer(tz->device->handle, @@ -431,7 +431,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) break; if (i == 1) tz->trips.active[0].temperature = - CELSIUS_TO_KELVIN(act); + CELSIUS_TO_DECI_KELVIN(act); else /* * Don't allow override higher than @@ -439,9 +439,9 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) */ tz->trips.active[i - 1].temperature = (tz->trips.active[i - 2].temperature < - CELSIUS_TO_KELVIN(act) ? + CELSIUS_TO_DECI_KELVIN(act) ? tz->trips.active[i - 2].temperature : - CELSIUS_TO_KELVIN(act)); + CELSIUS_TO_DECI_KELVIN(act)); break; } else { tz->trips.active[i].temperature = tmp; @@ -1105,7 +1105,7 @@ static int acpi_thermal_add(struct acpi_device *device) INIT_WORK(&tz->thermal_check_work, acpi_thermal_check_fn); pr_info(PREFIX "%s [%s] (%ld C)\n", acpi_device_name(device), - acpi_device_bid(device), KELVIN_TO_CELSIUS(tz->temperature)); + acpi_device_bid(device), DECI_KELVIN_TO_CELSIUS(tz->temperature)); goto end; free_memory: diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index efbc3f0c592b..bb80f7a29496 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -1318,7 +1318,7 @@ static ssize_t asus_hwmon_temp1(struct device *dev, if (err < 0) return err; - value = KELVIN_TO_CELSIUS((value & 0xFFFF)) * 1000; + value = DECI_KELVIN_TO_CELSIUS((value & 0xFFFF)) * 1000; return sprintf(buf, "%d\n", value); } diff --git a/drivers/platform/x86/intel_menlow.c b/drivers/platform/x86/intel_menlow.c index e8b46d2c468c..0a919d81662c 100644 --- a/drivers/platform/x86/intel_menlow.c +++ b/drivers/platform/x86/intel_menlow.c @@ -315,7 +315,7 @@ static ssize_t aux0_show(struct device *dev, result = sensor_get_auxtrip(attr->handle, 0, &value); - return result ? result : sprintf(buf, "%lu", KELVIN_TO_CELSIUS(value)); + return result ? result : sprintf(buf, "%lu", DECI_KELVIN_TO_CELSIUS(value)); } static ssize_t aux1_show(struct device *dev, @@ -327,7 +327,7 @@ static ssize_t aux1_show(struct device *dev, result = sensor_get_auxtrip(attr->handle, 1, &value); - return result ? result : sprintf(buf, "%lu", KELVIN_TO_CELSIUS(value)); + return result ? result : sprintf(buf, "%lu", DECI_KELVIN_TO_CELSIUS(value)); } static ssize_t aux0_store(struct device *dev, @@ -345,7 +345,7 @@ static ssize_t aux0_store(struct device *dev, if (value < 0) return -EINVAL; - result = sensor_set_auxtrip(attr->handle, 0, CELSIUS_TO_KELVIN(value)); + result = sensor_set_auxtrip(attr->handle, 0, CELSIUS_TO_DECI_KELVIN(value)); return result ? result : count; } @@ -364,7 +364,7 @@ static ssize_t aux1_store(struct device *dev, if (value < 0) return -EINVAL; - result = sensor_set_auxtrip(attr->handle, 1, CELSIUS_TO_KELVIN(value)); + result = sensor_set_auxtrip(attr->handle, 1, CELSIUS_TO_DECI_KELVIN(value)); return result ? result : count; } diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 157d366e761b..4014a59828fc 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -44,9 +44,11 @@ #define THERMAL_WEIGHT_DEFAULT 0 /* Unit conversion macros */ -#define KELVIN_TO_CELSIUS(t) (long)(((long)t-2732 >= 0) ? \ - ((long)t-2732+5)/10 : ((long)t-2732-5)/10) -#define CELSIUS_TO_KELVIN(t) ((t)*10+2732) +#define DECI_KELVIN_TO_CELSIUS(t) ({ \ + long _t = (t); \ + ((_t-2732 >= 0) ? (_t-2732+5)/10 : (_t-2732-5)/10); \ +}) +#define CELSIUS_TO_DECI_KELVIN(t) ((t)*10+2732) #define DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, off) (((t) - (off)) * 100) #define DECI_KELVIN_TO_MILLICELSIUS(t) DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, 2732) #define MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, off) (((t) / 100) + (off)) -- cgit v1.2.3-71-gd317 From 0ad95472bf169a3501991f8f33f5147f792a8116 Mon Sep 17 00:00:00 2001 From: Andrey Ryabinin Date: Wed, 23 Sep 2015 15:49:29 +0300 Subject: lockd: create NSM handles per net namespace Commit cb7323fffa85 ("lockd: create and use per-net NSM RPC clients on MON/UNMON requests") introduced per-net NSM RPC clients. Unfortunately this doesn't make any sense without per-net nsm_handle. E.g. the following scenario could happen Two hosts (X and Y) in different namespaces (A and B) share the same nsm struct. 1. nsm_monitor(host_X) called => NSM rpc client created, nsm->sm_monitored bit set. 2. nsm_mointor(host-Y) called => nsm->sm_monitored already set, we just exit. Thus in namespace B ln->nsm_clnt == NULL. 3. host X destroyed => nsm->sm_count decremented to 1 4. host Y destroyed => nsm_unmonitor() => nsm_mon_unmon() => NULL-ptr dereference of *ln->nsm_clnt So this could be fixed by making per-net nsm_handles list, instead of global. Thus different net namespaces will not be able share the same nsm_handle. Signed-off-by: Andrey Ryabinin Cc: Signed-off-by: J. Bruce Fields --- fs/lockd/host.c | 7 ++++--- fs/lockd/mon.c | 36 ++++++++++++++++++++++-------------- fs/lockd/netns.h | 1 + fs/lockd/svc.c | 1 + fs/lockd/svc4proc.c | 2 +- fs/lockd/svcproc.c | 2 +- include/linux/lockd/lockd.h | 9 ++++++--- 7 files changed, 36 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/fs/lockd/host.c b/fs/lockd/host.c index 969d589c848d..b5f3c3ab0d5f 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -116,7 +116,7 @@ static struct nlm_host *nlm_alloc_host(struct nlm_lookup_host_info *ni, atomic_inc(&nsm->sm_count); else { host = NULL; - nsm = nsm_get_handle(ni->sap, ni->salen, + nsm = nsm_get_handle(ni->net, ni->sap, ni->salen, ni->hostname, ni->hostname_len); if (unlikely(nsm == NULL)) { dprintk("lockd: %s failed; no nsm handle\n", @@ -534,17 +534,18 @@ static struct nlm_host *next_host_state(struct hlist_head *cache, /** * nlm_host_rebooted - Release all resources held by rebooted host + * @net: network namespace * @info: pointer to decoded results of NLM_SM_NOTIFY call * * We were notified that the specified host has rebooted. Release * all resources held by that peer. */ -void nlm_host_rebooted(const struct nlm_reboot *info) +void nlm_host_rebooted(const struct net *net, const struct nlm_reboot *info) { struct nsm_handle *nsm; struct nlm_host *host; - nsm = nsm_reboot_lookup(info); + nsm = nsm_reboot_lookup(net, info); if (unlikely(nsm == NULL)) return; diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index 47a32b6d9b90..6c05cd17e520 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -51,7 +51,6 @@ struct nsm_res { }; static const struct rpc_program nsm_program; -static LIST_HEAD(nsm_handles); static DEFINE_SPINLOCK(nsm_lock); /* @@ -264,33 +263,35 @@ void nsm_unmonitor(const struct nlm_host *host) } } -static struct nsm_handle *nsm_lookup_hostname(const char *hostname, - const size_t len) +static struct nsm_handle *nsm_lookup_hostname(const struct list_head *nsm_handles, + const char *hostname, const size_t len) { struct nsm_handle *nsm; - list_for_each_entry(nsm, &nsm_handles, sm_link) + list_for_each_entry(nsm, nsm_handles, sm_link) if (strlen(nsm->sm_name) == len && memcmp(nsm->sm_name, hostname, len) == 0) return nsm; return NULL; } -static struct nsm_handle *nsm_lookup_addr(const struct sockaddr *sap) +static struct nsm_handle *nsm_lookup_addr(const struct list_head *nsm_handles, + const struct sockaddr *sap) { struct nsm_handle *nsm; - list_for_each_entry(nsm, &nsm_handles, sm_link) + list_for_each_entry(nsm, nsm_handles, sm_link) if (rpc_cmp_addr(nsm_addr(nsm), sap)) return nsm; return NULL; } -static struct nsm_handle *nsm_lookup_priv(const struct nsm_private *priv) +static struct nsm_handle *nsm_lookup_priv(const struct list_head *nsm_handles, + const struct nsm_private *priv) { struct nsm_handle *nsm; - list_for_each_entry(nsm, &nsm_handles, sm_link) + list_for_each_entry(nsm, nsm_handles, sm_link) if (memcmp(nsm->sm_priv.data, priv->data, sizeof(priv->data)) == 0) return nsm; @@ -353,6 +354,7 @@ static struct nsm_handle *nsm_create_handle(const struct sockaddr *sap, /** * nsm_get_handle - Find or create a cached nsm_handle + * @net: network namespace * @sap: pointer to socket address of handle to find * @salen: length of socket address * @hostname: pointer to C string containing hostname to find @@ -365,11 +367,13 @@ static struct nsm_handle *nsm_create_handle(const struct sockaddr *sap, * @hostname cannot be found in the handle cache. Returns NULL if * an error occurs. */ -struct nsm_handle *nsm_get_handle(const struct sockaddr *sap, +struct nsm_handle *nsm_get_handle(const struct net *net, + const struct sockaddr *sap, const size_t salen, const char *hostname, const size_t hostname_len) { struct nsm_handle *cached, *new = NULL; + struct lockd_net *ln = net_generic(net, lockd_net_id); if (hostname && memchr(hostname, '/', hostname_len) != NULL) { if (printk_ratelimit()) { @@ -384,9 +388,10 @@ retry: spin_lock(&nsm_lock); if (nsm_use_hostnames && hostname != NULL) - cached = nsm_lookup_hostname(hostname, hostname_len); + cached = nsm_lookup_hostname(&ln->nsm_handles, + hostname, hostname_len); else - cached = nsm_lookup_addr(sap); + cached = nsm_lookup_addr(&ln->nsm_handles, sap); if (cached != NULL) { atomic_inc(&cached->sm_count); @@ -400,7 +405,7 @@ retry: } if (new != NULL) { - list_add(&new->sm_link, &nsm_handles); + list_add(&new->sm_link, &ln->nsm_handles); spin_unlock(&nsm_lock); dprintk("lockd: created nsm_handle for %s (%s)\n", new->sm_name, new->sm_addrbuf); @@ -417,19 +422,22 @@ retry: /** * nsm_reboot_lookup - match NLMPROC_SM_NOTIFY arguments to an nsm_handle + * @net: network namespace * @info: pointer to NLMPROC_SM_NOTIFY arguments * * Returns a matching nsm_handle if found in the nsm cache. The returned * nsm_handle's reference count is bumped. Otherwise returns NULL if some * error occurred. */ -struct nsm_handle *nsm_reboot_lookup(const struct nlm_reboot *info) +struct nsm_handle *nsm_reboot_lookup(const struct net *net, + const struct nlm_reboot *info) { struct nsm_handle *cached; + struct lockd_net *ln = net_generic(net, lockd_net_id); spin_lock(&nsm_lock); - cached = nsm_lookup_priv(&info->priv); + cached = nsm_lookup_priv(&ln->nsm_handles, &info->priv); if (unlikely(cached == NULL)) { spin_unlock(&nsm_lock); dprintk("lockd: never saw rebooted peer '%.*s' before\n", diff --git a/fs/lockd/netns.h b/fs/lockd/netns.h index 097bfa3adb1c..89fe011b1335 100644 --- a/fs/lockd/netns.h +++ b/fs/lockd/netns.h @@ -15,6 +15,7 @@ struct lockd_net { spinlock_t nsm_clnt_lock; unsigned int nsm_users; struct rpc_clnt *nsm_clnt; + struct list_head nsm_handles; }; extern int lockd_net_id; diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c index d678bcc3cbcb..0dff13f41808 100644 --- a/fs/lockd/svc.c +++ b/fs/lockd/svc.c @@ -593,6 +593,7 @@ static int lockd_init_net(struct net *net) INIT_LIST_HEAD(&ln->lockd_manager.list); ln->lockd_manager.block_opens = false; spin_lock_init(&ln->nsm_clnt_lock); + INIT_LIST_HEAD(&ln->nsm_handles); return 0; } diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c index b147d1ae71fd..09c576f26c7b 100644 --- a/fs/lockd/svc4proc.c +++ b/fs/lockd/svc4proc.c @@ -421,7 +421,7 @@ nlm4svc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp, return rpc_system_err; } - nlm_host_rebooted(argp); + nlm_host_rebooted(SVC_NET(rqstp), argp); return rpc_success; } diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c index 21171f0c6477..fb26b9f522e7 100644 --- a/fs/lockd/svcproc.c +++ b/fs/lockd/svcproc.c @@ -464,7 +464,7 @@ nlmsvc_proc_sm_notify(struct svc_rqst *rqstp, struct nlm_reboot *argp, return rpc_system_err; } - nlm_host_rebooted(argp); + nlm_host_rebooted(SVC_NET(rqstp), argp); return rpc_success; } diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index ff82a32871b5..fd3b65bf51b5 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -235,7 +235,8 @@ void nlm_rebind_host(struct nlm_host *); struct nlm_host * nlm_get_host(struct nlm_host *); void nlm_shutdown_hosts(void); void nlm_shutdown_hosts_net(struct net *net); -void nlm_host_rebooted(const struct nlm_reboot *); +void nlm_host_rebooted(const struct net *net, + const struct nlm_reboot *); /* * Host monitoring @@ -243,11 +244,13 @@ void nlm_host_rebooted(const struct nlm_reboot *); int nsm_monitor(const struct nlm_host *host); void nsm_unmonitor(const struct nlm_host *host); -struct nsm_handle *nsm_get_handle(const struct sockaddr *sap, +struct nsm_handle *nsm_get_handle(const struct net *net, + const struct sockaddr *sap, const size_t salen, const char *hostname, const size_t hostname_len); -struct nsm_handle *nsm_reboot_lookup(const struct nlm_reboot *info); +struct nsm_handle *nsm_reboot_lookup(const struct net *net, + const struct nlm_reboot *info); void nsm_release(struct nsm_handle *nsm); /* -- cgit v1.2.3-71-gd317 From 870823e629ea194e6cf8e82a9694ac62cad49512 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 3 Oct 2015 15:32:37 +0200 Subject: configfs: add show and store methods to struct configfs_attribute Add methods to struct configfs_attribute to directly show and store attributes without adding boilerplate code to every user. In addition to the methods this also adds 3 helper macros to define read/write, read-only and write-only attributes with a single line of code. Signed-off-by: Christoph Hellwig Reviewed-by: Nicholas Bellinger Acked-by: Greg Kroah-Hartman Signed-off-by: Nicholas Bellinger --- fs/configfs/file.c | 17 ++++++++++++----- include/linux/configfs.h | 27 +++++++++++++++++++++++++++ 2 files changed, 39 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/fs/configfs/file.c b/fs/configfs/file.c index 403269ffcdf3..106ca589e90a 100644 --- a/fs/configfs/file.c +++ b/fs/configfs/file.c @@ -74,7 +74,11 @@ static int fill_read_buffer(struct dentry * dentry, struct configfs_buffer * buf if (!buffer->page) return -ENOMEM; - count = ops->show_attribute(item,attr,buffer->page); + if (ops->show_attribute) + count = ops->show_attribute(item, attr, buffer->page); + else + count = attr->show(item, buffer->page); + buffer->needs_read_fill = 0; BUG_ON(count > (ssize_t)SIMPLE_ATTR_SIZE); if (count >= 0) @@ -173,7 +177,9 @@ flush_write_buffer(struct dentry * dentry, struct configfs_buffer * buffer, size struct config_item * item = to_item(dentry->d_parent); struct configfs_item_operations * ops = buffer->ops; - return ops->store_attribute(item,attr,buffer->page,count); + if (ops->store_attribute) + return ops->store_attribute(item, attr, buffer->page, count); + return attr->store(item, buffer->page, count); } @@ -237,8 +243,8 @@ static int check_perm(struct inode * inode, struct file * file) * and we must have a store method. */ if (file->f_mode & FMODE_WRITE) { - - if (!(inode->i_mode & S_IWUGO) || !ops->store_attribute) + if (!(inode->i_mode & S_IWUGO) || + (!ops->store_attribute && !attr->store)) goto Eaccess; } @@ -248,7 +254,8 @@ static int check_perm(struct inode * inode, struct file * file) * must be a show method for it. */ if (file->f_mode & FMODE_READ) { - if (!(inode->i_mode & S_IRUGO) || !ops->show_attribute) + if (!(inode->i_mode & S_IRUGO) || + (!ops->show_attribute && !attr->show)) goto Eaccess; } diff --git a/include/linux/configfs.h b/include/linux/configfs.h index 63a36e89d0eb..85e9956a86de 100644 --- a/include/linux/configfs.h +++ b/include/linux/configfs.h @@ -125,8 +125,35 @@ struct configfs_attribute { const char *ca_name; struct module *ca_owner; umode_t ca_mode; + ssize_t (*show)(struct config_item *, char *); + ssize_t (*store)(struct config_item *, const char *, size_t); }; +#define CONFIGFS_ATTR(_pfx, _name) \ +static struct configfs_attribute _pfx##attr_##_name = { \ + .ca_name = __stringify(_name), \ + .ca_mode = S_IRUGO | S_IWUSR, \ + .ca_owner = THIS_MODULE, \ + .show = _pfx##_name##_show, \ + .store = _pfx##_name##_store, \ +} + +#define CONFIGFS_ATTR_RO(_pfx, _name) \ +static struct configfs_attribute _pfx##attr_##_name = { \ + .ca_name = __stringify(_name), \ + .ca_mode = S_IRUGO, \ + .ca_owner = THIS_MODULE, \ + .show = _pfx##_name##_show, \ +} + +#define CONFIGFS_ATTR_WO(_pfx, _name) \ +static struct configfs_attribute _pfx##attr_##_name = { \ + .ca_name = __stringify(_name), \ + .ca_mode = S_IWUSR, \ + .ca_owner = THIS_MODULE, \ + .store = _pfx##_name##_store, \ +} + /* * Users often need to create attribute structures for their configurable * attributes, containing a configfs_attribute member and function pointers -- cgit v1.2.3-71-gd317 From 45b6a73f62ebcf3ff067895fb8030e67f4c7b67f Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 3 Oct 2015 15:32:38 +0200 Subject: usb-gadget: use per-attribute show and store methods To simplify the configfs interface and remove boilerplate code that also causes binary bloat. Signed-off-by: Christoph Hellwig Reviewed-by: Andrzej Pietrasiewicz Acked-by: Felipe Balbi Signed-off-by: Nicholas Bellinger --- drivers/usb/gadget/configfs.c | 295 ++++++++++++++---------------------- include/linux/usb/gadget_configfs.h | 19 +-- 2 files changed, 118 insertions(+), 196 deletions(-) (limited to 'include') diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 294eb74fb078..163d305e1200 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -64,6 +64,11 @@ struct gadget_info { char qw_sign[OS_STRING_QW_SIGN_LEN]; }; +static inline struct gadget_info *to_gadget_info(struct config_item *item) +{ + return container_of(to_config_group(item), struct gadget_info, group); +} + struct config_usb_cfg { struct config_group group; struct config_group strings_group; @@ -74,6 +79,12 @@ struct config_usb_cfg { struct usb_gadget_strings *gstrings[MAX_USB_STRING_LANGS + 1]; }; +static inline struct config_usb_cfg *to_config_usb_cfg(struct config_item *item) +{ + return container_of(to_config_group(item), struct config_usb_cfg, + group); +} + struct gadget_strings { struct usb_gadget_strings stringtab_dev; struct usb_string strings[USB_GADGET_FIRST_AVAIL_IDX]; @@ -117,32 +128,25 @@ static int usb_string_copy(const char *s, char **s_copy) return 0; } -CONFIGFS_ATTR_STRUCT(gadget_info); -CONFIGFS_ATTR_STRUCT(config_usb_cfg); - -#define GI_DEVICE_DESC_ITEM_ATTR(name) \ - static struct gadget_info_attribute gadget_cdev_desc_##name = \ - __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \ - gadget_dev_desc_##name##_show, \ - gadget_dev_desc_##name##_store) - #define GI_DEVICE_DESC_SIMPLE_R_u8(__name) \ - static ssize_t gadget_dev_desc_##__name##_show(struct gadget_info *gi, \ +static ssize_t gadget_dev_desc_##__name##_show(struct config_item *item, \ char *page) \ { \ - return sprintf(page, "0x%02x\n", gi->cdev.desc.__name); \ + return sprintf(page, "0x%02x\n", \ + to_gadget_info(item)->cdev.desc.__name); \ } #define GI_DEVICE_DESC_SIMPLE_R_u16(__name) \ - static ssize_t gadget_dev_desc_##__name##_show(struct gadget_info *gi, \ +static ssize_t gadget_dev_desc_##__name##_show(struct config_item *item, \ char *page) \ { \ - return sprintf(page, "0x%04x\n", le16_to_cpup(&gi->cdev.desc.__name)); \ + return sprintf(page, "0x%04x\n", \ + le16_to_cpup(&to_gadget_info(item)->cdev.desc.__name)); \ } #define GI_DEVICE_DESC_SIMPLE_W_u8(_name) \ - static ssize_t gadget_dev_desc_##_name##_store(struct gadget_info *gi, \ +static ssize_t gadget_dev_desc_##_name##_store(struct config_item *item, \ const char *page, size_t len) \ { \ u8 val; \ @@ -150,12 +154,12 @@ CONFIGFS_ATTR_STRUCT(config_usb_cfg); ret = kstrtou8(page, 0, &val); \ if (ret) \ return ret; \ - gi->cdev.desc._name = val; \ + to_gadget_info(item)->cdev.desc._name = val; \ return len; \ } #define GI_DEVICE_DESC_SIMPLE_W_u16(_name) \ - static ssize_t gadget_dev_desc_##_name##_store(struct gadget_info *gi, \ +static ssize_t gadget_dev_desc_##_name##_store(struct config_item *item, \ const char *page, size_t len) \ { \ u16 val; \ @@ -163,7 +167,7 @@ CONFIGFS_ATTR_STRUCT(config_usb_cfg); ret = kstrtou16(page, 0, &val); \ if (ret) \ return ret; \ - gi->cdev.desc._name = cpu_to_le16p(&val); \ + to_gadget_info(item)->cdev.desc._name = cpu_to_le16p(&val); \ return len; \ } @@ -193,7 +197,7 @@ static ssize_t is_valid_bcd(u16 bcd_val) return 0; } -static ssize_t gadget_dev_desc_bcdDevice_store(struct gadget_info *gi, +static ssize_t gadget_dev_desc_bcdDevice_store(struct config_item *item, const char *page, size_t len) { u16 bcdDevice; @@ -206,11 +210,11 @@ static ssize_t gadget_dev_desc_bcdDevice_store(struct gadget_info *gi, if (ret) return ret; - gi->cdev.desc.bcdDevice = cpu_to_le16(bcdDevice); + to_gadget_info(item)->cdev.desc.bcdDevice = cpu_to_le16(bcdDevice); return len; } -static ssize_t gadget_dev_desc_bcdUSB_store(struct gadget_info *gi, +static ssize_t gadget_dev_desc_bcdUSB_store(struct config_item *item, const char *page, size_t len) { u16 bcdUSB; @@ -223,13 +227,13 @@ static ssize_t gadget_dev_desc_bcdUSB_store(struct gadget_info *gi, if (ret) return ret; - gi->cdev.desc.bcdUSB = cpu_to_le16(bcdUSB); + to_gadget_info(item)->cdev.desc.bcdUSB = cpu_to_le16(bcdUSB); return len; } -static ssize_t gadget_dev_desc_UDC_show(struct gadget_info *gi, char *page) +static ssize_t gadget_dev_desc_UDC_show(struct config_item *item, char *page) { - return sprintf(page, "%s\n", gi->udc_name ?: ""); + return sprintf(page, "%s\n", to_gadget_info(item)->udc_name ?: ""); } static int unregister_gadget(struct gadget_info *gi) @@ -247,9 +251,10 @@ static int unregister_gadget(struct gadget_info *gi) return 0; } -static ssize_t gadget_dev_desc_UDC_store(struct gadget_info *gi, +static ssize_t gadget_dev_desc_UDC_store(struct config_item *item, const char *page, size_t len) { + struct gadget_info *gi = to_gadget_info(item); char *name; int ret; @@ -283,34 +288,29 @@ err: return ret; } -GI_DEVICE_DESC_ITEM_ATTR(bDeviceClass); -GI_DEVICE_DESC_ITEM_ATTR(bDeviceSubClass); -GI_DEVICE_DESC_ITEM_ATTR(bDeviceProtocol); -GI_DEVICE_DESC_ITEM_ATTR(bMaxPacketSize0); -GI_DEVICE_DESC_ITEM_ATTR(idVendor); -GI_DEVICE_DESC_ITEM_ATTR(idProduct); -GI_DEVICE_DESC_ITEM_ATTR(bcdDevice); -GI_DEVICE_DESC_ITEM_ATTR(bcdUSB); -GI_DEVICE_DESC_ITEM_ATTR(UDC); +CONFIGFS_ATTR(gadget_dev_desc_, bDeviceClass); +CONFIGFS_ATTR(gadget_dev_desc_, bDeviceSubClass); +CONFIGFS_ATTR(gadget_dev_desc_, bDeviceProtocol); +CONFIGFS_ATTR(gadget_dev_desc_, bMaxPacketSize0); +CONFIGFS_ATTR(gadget_dev_desc_, idVendor); +CONFIGFS_ATTR(gadget_dev_desc_, idProduct); +CONFIGFS_ATTR(gadget_dev_desc_, bcdDevice); +CONFIGFS_ATTR(gadget_dev_desc_, bcdUSB); +CONFIGFS_ATTR(gadget_dev_desc_, UDC); static struct configfs_attribute *gadget_root_attrs[] = { - &gadget_cdev_desc_bDeviceClass.attr, - &gadget_cdev_desc_bDeviceSubClass.attr, - &gadget_cdev_desc_bDeviceProtocol.attr, - &gadget_cdev_desc_bMaxPacketSize0.attr, - &gadget_cdev_desc_idVendor.attr, - &gadget_cdev_desc_idProduct.attr, - &gadget_cdev_desc_bcdDevice.attr, - &gadget_cdev_desc_bcdUSB.attr, - &gadget_cdev_desc_UDC.attr, + &gadget_dev_desc_attr_bDeviceClass, + &gadget_dev_desc_attr_bDeviceSubClass, + &gadget_dev_desc_attr_bDeviceProtocol, + &gadget_dev_desc_attr_bMaxPacketSize0, + &gadget_dev_desc_attr_idVendor, + &gadget_dev_desc_attr_idProduct, + &gadget_dev_desc_attr_bcdDevice, + &gadget_dev_desc_attr_bcdUSB, + &gadget_dev_desc_attr_UDC, NULL, }; -static inline struct gadget_info *to_gadget_info(struct config_item *item) -{ - return container_of(to_config_group(item), struct gadget_info, group); -} - static inline struct gadget_strings *to_gadget_strings(struct config_item *item) { return container_of(to_config_group(item), struct gadget_strings, @@ -324,12 +324,6 @@ static inline struct gadget_config_name *to_gadget_config_name( group); } -static inline struct config_usb_cfg *to_config_usb_cfg(struct config_item *item) -{ - return container_of(to_config_group(item), struct config_usb_cfg, - group); -} - static inline struct usb_function_instance *to_usb_function_instance( struct config_item *item) { @@ -348,12 +342,8 @@ static void gadget_info_attr_release(struct config_item *item) kfree(gi); } -CONFIGFS_ATTR_OPS(gadget_info); - static struct configfs_item_operations gadget_root_item_ops = { .release = gadget_info_attr_release, - .show_attribute = gadget_info_attr_show, - .store_attribute = gadget_info_attr_store, }; static void gadget_config_attr_release(struct config_item *item) @@ -454,24 +444,20 @@ static int config_usb_cfg_unlink( return 0; } -CONFIGFS_ATTR_OPS(config_usb_cfg); - static struct configfs_item_operations gadget_config_item_ops = { .release = gadget_config_attr_release, - .show_attribute = config_usb_cfg_attr_show, - .store_attribute = config_usb_cfg_attr_store, .allow_link = config_usb_cfg_link, .drop_link = config_usb_cfg_unlink, }; -static ssize_t gadget_config_desc_MaxPower_show(struct config_usb_cfg *cfg, +static ssize_t gadget_config_desc_MaxPower_show(struct config_item *item, char *page) { - return sprintf(page, "%u\n", cfg->c.MaxPower); + return sprintf(page, "%u\n", to_config_usb_cfg(item)->c.MaxPower); } -static ssize_t gadget_config_desc_MaxPower_store(struct config_usb_cfg *cfg, +static ssize_t gadget_config_desc_MaxPower_store(struct config_item *item, const char *page, size_t len) { u16 val; @@ -481,17 +467,18 @@ static ssize_t gadget_config_desc_MaxPower_store(struct config_usb_cfg *cfg, return ret; if (DIV_ROUND_UP(val, 8) > 0xff) return -ERANGE; - cfg->c.MaxPower = val; + to_config_usb_cfg(item)->c.MaxPower = val; return len; } -static ssize_t gadget_config_desc_bmAttributes_show(struct config_usb_cfg *cfg, +static ssize_t gadget_config_desc_bmAttributes_show(struct config_item *item, char *page) { - return sprintf(page, "0x%02x\n", cfg->c.bmAttributes); + return sprintf(page, "0x%02x\n", + to_config_usb_cfg(item)->c.bmAttributes); } -static ssize_t gadget_config_desc_bmAttributes_store(struct config_usb_cfg *cfg, +static ssize_t gadget_config_desc_bmAttributes_store(struct config_item *item, const char *page, size_t len) { u8 val; @@ -504,22 +491,16 @@ static ssize_t gadget_config_desc_bmAttributes_store(struct config_usb_cfg *cfg, if (val & ~(USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER | USB_CONFIG_ATT_WAKEUP)) return -EINVAL; - cfg->c.bmAttributes = val; + to_config_usb_cfg(item)->c.bmAttributes = val; return len; } -#define CFG_CONFIG_DESC_ITEM_ATTR(name) \ - static struct config_usb_cfg_attribute gadget_usb_cfg_##name = \ - __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \ - gadget_config_desc_##name##_show, \ - gadget_config_desc_##name##_store) - -CFG_CONFIG_DESC_ITEM_ATTR(MaxPower); -CFG_CONFIG_DESC_ITEM_ATTR(bmAttributes); +CONFIGFS_ATTR(gadget_config_desc_, MaxPower); +CONFIGFS_ATTR(gadget_config_desc_, bmAttributes); static struct configfs_attribute *gadget_config_attrs[] = { - &gadget_usb_cfg_MaxPower.attr, - &gadget_usb_cfg_bmAttributes.attr, + &gadget_config_desc_attr_MaxPower, + &gadget_config_desc_attr_bmAttributes, NULL, }; @@ -616,11 +597,10 @@ static struct config_item_type functions_type = { .ct_owner = THIS_MODULE, }; -CONFIGFS_ATTR_STRUCT(gadget_config_name); GS_STRINGS_RW(gadget_config_name, configuration); static struct configfs_attribute *gadget_config_name_langid_attrs[] = { - &gadget_config_name_configuration.attr, + &gadget_config_name_attr_configuration, NULL, }; @@ -719,15 +699,14 @@ static struct config_item_type config_desc_type = { .ct_owner = THIS_MODULE, }; -CONFIGFS_ATTR_STRUCT(gadget_strings); GS_STRINGS_RW(gadget_strings, manufacturer); GS_STRINGS_RW(gadget_strings, product); GS_STRINGS_RW(gadget_strings, serialnumber); static struct configfs_attribute *gadget_strings_langid_attrs[] = { - &gadget_strings_manufacturer.attr, - &gadget_strings_product.attr, - &gadget_strings_serialnumber.attr, + &gadget_strings_attr_manufacturer, + &gadget_strings_attr_product, + &gadget_strings_attr_serialnumber, NULL, }; @@ -751,27 +730,25 @@ static inline struct os_desc *to_os_desc(struct config_item *item) return container_of(to_config_group(item), struct os_desc, group); } -CONFIGFS_ATTR_STRUCT(os_desc); -CONFIGFS_ATTR_OPS(os_desc); - -static ssize_t os_desc_use_show(struct os_desc *os_desc, char *page) +static inline struct gadget_info *os_desc_item_to_gadget_info( + struct config_item *item) { - struct gadget_info *gi; - - gi = to_gadget_info(os_desc->group.cg_item.ci_parent); + return to_gadget_info(to_os_desc(item)->group.cg_item.ci_parent); +} - return sprintf(page, "%d", gi->use_os_desc); +static ssize_t os_desc_use_show(struct config_item *item, char *page) +{ + return sprintf(page, "%d", + os_desc_item_to_gadget_info(item)->use_os_desc); } -static ssize_t os_desc_use_store(struct os_desc *os_desc, const char *page, +static ssize_t os_desc_use_store(struct config_item *item, const char *page, size_t len) { - struct gadget_info *gi; + struct gadget_info *gi = os_desc_item_to_gadget_info(item); int ret; bool use; - gi = to_gadget_info(os_desc->group.cg_item.ci_parent); - mutex_lock(&gi->lock); ret = strtobool(page, &use); if (!ret) { @@ -783,29 +760,19 @@ static ssize_t os_desc_use_store(struct os_desc *os_desc, const char *page, return ret; } -static struct os_desc_attribute os_desc_use = - __CONFIGFS_ATTR(use, S_IRUGO | S_IWUSR, - os_desc_use_show, - os_desc_use_store); - -static ssize_t os_desc_b_vendor_code_show(struct os_desc *os_desc, char *page) +static ssize_t os_desc_b_vendor_code_show(struct config_item *item, char *page) { - struct gadget_info *gi; - - gi = to_gadget_info(os_desc->group.cg_item.ci_parent); - - return sprintf(page, "%d", gi->b_vendor_code); + return sprintf(page, "%d", + os_desc_item_to_gadget_info(item)->b_vendor_code); } -static ssize_t os_desc_b_vendor_code_store(struct os_desc *os_desc, +static ssize_t os_desc_b_vendor_code_store(struct config_item *item, const char *page, size_t len) { - struct gadget_info *gi; + struct gadget_info *gi = os_desc_item_to_gadget_info(item); int ret; u8 b_vendor_code; - gi = to_gadget_info(os_desc->group.cg_item.ci_parent); - mutex_lock(&gi->lock); ret = kstrtou8(page, 0, &b_vendor_code); if (!ret) { @@ -817,29 +784,20 @@ static ssize_t os_desc_b_vendor_code_store(struct os_desc *os_desc, return ret; } -static struct os_desc_attribute os_desc_b_vendor_code = - __CONFIGFS_ATTR(b_vendor_code, S_IRUGO | S_IWUSR, - os_desc_b_vendor_code_show, - os_desc_b_vendor_code_store); - -static ssize_t os_desc_qw_sign_show(struct os_desc *os_desc, char *page) +static ssize_t os_desc_qw_sign_show(struct config_item *item, char *page) { - struct gadget_info *gi; - - gi = to_gadget_info(os_desc->group.cg_item.ci_parent); + struct gadget_info *gi = os_desc_item_to_gadget_info(item); memcpy(page, gi->qw_sign, OS_STRING_QW_SIGN_LEN); - return OS_STRING_QW_SIGN_LEN; } -static ssize_t os_desc_qw_sign_store(struct os_desc *os_desc, const char *page, +static ssize_t os_desc_qw_sign_store(struct config_item *item, const char *page, size_t len) { - struct gadget_info *gi; + struct gadget_info *gi = os_desc_item_to_gadget_info(item); int res, l; - gi = to_gadget_info(os_desc->group.cg_item.ci_parent); l = min((int)len, OS_STRING_QW_SIGN_LEN >> 1); if (page[l - 1] == '\n') --l; @@ -855,15 +813,14 @@ static ssize_t os_desc_qw_sign_store(struct os_desc *os_desc, const char *page, return res; } -static struct os_desc_attribute os_desc_qw_sign = - __CONFIGFS_ATTR(qw_sign, S_IRUGO | S_IWUSR, - os_desc_qw_sign_show, - os_desc_qw_sign_store); +CONFIGFS_ATTR(os_desc_, use); +CONFIGFS_ATTR(os_desc_, b_vendor_code); +CONFIGFS_ATTR(os_desc_, qw_sign); static struct configfs_attribute *os_desc_attrs[] = { - &os_desc_use.attr, - &os_desc_b_vendor_code.attr, - &os_desc_qw_sign.attr, + &os_desc_attr_use, + &os_desc_attr_b_vendor_code, + &os_desc_attr_qw_sign, NULL, }; @@ -926,8 +883,6 @@ static int os_desc_unlink(struct config_item *os_desc_ci, static struct configfs_item_operations os_desc_ops = { .release = os_desc_attr_release, - .show_attribute = os_desc_attr_show, - .store_attribute = os_desc_attr_store, .allow_link = os_desc_link, .drop_link = os_desc_unlink, }; @@ -938,28 +893,21 @@ static struct config_item_type os_desc_type = { .ct_owner = THIS_MODULE, }; -CONFIGFS_ATTR_STRUCT(usb_os_desc); -CONFIGFS_ATTR_OPS(usb_os_desc); - - static inline struct usb_os_desc_ext_prop *to_usb_os_desc_ext_prop(struct config_item *item) { return container_of(item, struct usb_os_desc_ext_prop, item); } -CONFIGFS_ATTR_STRUCT(usb_os_desc_ext_prop); -CONFIGFS_ATTR_OPS(usb_os_desc_ext_prop); - -static ssize_t ext_prop_type_show(struct usb_os_desc_ext_prop *ext_prop, - char *page) +static ssize_t ext_prop_type_show(struct config_item *item, char *page) { - return sprintf(page, "%d", ext_prop->type); + return sprintf(page, "%d", to_usb_os_desc_ext_prop(item)->type); } -static ssize_t ext_prop_type_store(struct usb_os_desc_ext_prop *ext_prop, +static ssize_t ext_prop_type_store(struct config_item *item, const char *page, size_t len) { + struct usb_os_desc_ext_prop *ext_prop = to_usb_os_desc_ext_prop(item); struct usb_os_desc *desc = to_usb_os_desc(ext_prop->item.ci_parent); u8 type; int ret; @@ -997,9 +945,9 @@ end: return ret; } -static ssize_t ext_prop_data_show(struct usb_os_desc_ext_prop *ext_prop, - char *page) +static ssize_t ext_prop_data_show(struct config_item *item, char *page) { + struct usb_os_desc_ext_prop *ext_prop = to_usb_os_desc_ext_prop(item); int len = ext_prop->data_len; if (ext_prop->type == USB_EXT_PROP_UNICODE || @@ -1011,9 +959,10 @@ static ssize_t ext_prop_data_show(struct usb_os_desc_ext_prop *ext_prop, return len; } -static ssize_t ext_prop_data_store(struct usb_os_desc_ext_prop *ext_prop, +static ssize_t ext_prop_data_store(struct config_item *item, const char *page, size_t len) { + struct usb_os_desc_ext_prop *ext_prop = to_usb_os_desc_ext_prop(item); struct usb_os_desc *desc = to_usb_os_desc(ext_prop->item.ci_parent); char *new_data; size_t ret_len = len; @@ -1044,17 +993,12 @@ static ssize_t ext_prop_data_store(struct usb_os_desc_ext_prop *ext_prop, return ret_len; } -static struct usb_os_desc_ext_prop_attribute ext_prop_type = - __CONFIGFS_ATTR(type, S_IRUGO | S_IWUSR, - ext_prop_type_show, ext_prop_type_store); - -static struct usb_os_desc_ext_prop_attribute ext_prop_data = - __CONFIGFS_ATTR(data, S_IRUGO | S_IWUSR, - ext_prop_data_show, ext_prop_data_store); +CONFIGFS_ATTR(ext_prop_, type); +CONFIGFS_ATTR(ext_prop_, data); static struct configfs_attribute *ext_prop_attrs[] = { - &ext_prop_type.attr, - &ext_prop_data.attr, + &ext_prop_attr_type, + &ext_prop_attr_data, NULL, }; @@ -1067,8 +1011,6 @@ static void usb_os_desc_ext_prop_release(struct config_item *item) static struct configfs_item_operations ext_prop_ops = { .release = usb_os_desc_ext_prop_release, - .show_attribute = usb_os_desc_ext_prop_attr_show, - .store_attribute = usb_os_desc_ext_prop_attr_store, }; static struct config_item *ext_prop_make( @@ -1137,21 +1079,17 @@ static struct configfs_group_operations interf_grp_ops = { .drop_item = &ext_prop_drop, }; -static struct configfs_item_operations interf_item_ops = { - .show_attribute = usb_os_desc_attr_show, - .store_attribute = usb_os_desc_attr_store, -}; - -static ssize_t interf_grp_compatible_id_show(struct usb_os_desc *desc, +static ssize_t interf_grp_compatible_id_show(struct config_item *item, char *page) { - memcpy(page, desc->ext_compat_id, 8); + memcpy(page, to_usb_os_desc(item)->ext_compat_id, 8); return 8; } -static ssize_t interf_grp_compatible_id_store(struct usb_os_desc *desc, +static ssize_t interf_grp_compatible_id_store(struct config_item *item, const char *page, size_t len) { + struct usb_os_desc *desc = to_usb_os_desc(item); int l; l = min_t(int, 8, len); @@ -1167,21 +1105,17 @@ static ssize_t interf_grp_compatible_id_store(struct usb_os_desc *desc, return len; } -static struct usb_os_desc_attribute interf_grp_attr_compatible_id = - __CONFIGFS_ATTR(compatible_id, S_IRUGO | S_IWUSR, - interf_grp_compatible_id_show, - interf_grp_compatible_id_store); - -static ssize_t interf_grp_sub_compatible_id_show(struct usb_os_desc *desc, +static ssize_t interf_grp_sub_compatible_id_show(struct config_item *item, char *page) { - memcpy(page, desc->ext_compat_id + 8, 8); + memcpy(page, to_usb_os_desc(item)->ext_compat_id + 8, 8); return 8; } -static ssize_t interf_grp_sub_compatible_id_store(struct usb_os_desc *desc, +static ssize_t interf_grp_sub_compatible_id_store(struct config_item *item, const char *page, size_t len) { + struct usb_os_desc *desc = to_usb_os_desc(item); int l; l = min_t(int, 8, len); @@ -1197,14 +1131,12 @@ static ssize_t interf_grp_sub_compatible_id_store(struct usb_os_desc *desc, return len; } -static struct usb_os_desc_attribute interf_grp_attr_sub_compatible_id = - __CONFIGFS_ATTR(sub_compatible_id, S_IRUGO | S_IWUSR, - interf_grp_sub_compatible_id_show, - interf_grp_sub_compatible_id_store); +CONFIGFS_ATTR(interf_grp_, compatible_id); +CONFIGFS_ATTR(interf_grp_, sub_compatible_id); static struct configfs_attribute *interf_grp_attrs[] = { - &interf_grp_attr_compatible_id.attr, - &interf_grp_attr_sub_compatible_id.attr, + &interf_grp_attr_compatible_id, + &interf_grp_attr_sub_compatible_id, NULL }; @@ -1242,7 +1174,6 @@ int usb_os_desc_prepare_interf_dir(struct config_group *parent, f_default_groups[0] = os_desc_group; os_desc_group->default_groups = interface_groups; - interface_type->ct_item_ops = &interf_item_ops; interface_type->ct_group_ops = &interf_grp_ops; interface_type->ct_attrs = interf_grp_attrs; interface_type->ct_owner = owner; diff --git a/include/linux/usb/gadget_configfs.h b/include/linux/usb/gadget_configfs.h index d74c0ae989d5..c36e95730de1 100644 --- a/include/linux/usb/gadget_configfs.h +++ b/include/linux/usb/gadget_configfs.h @@ -7,9 +7,10 @@ int check_user_usb_string(const char *name, struct usb_gadget_strings *stringtab_dev); #define GS_STRINGS_W(__struct, __name) \ - static ssize_t __struct##_##__name##_store(struct __struct *gs, \ +static ssize_t __struct##_##__name##_store(struct config_item *item, \ const char *page, size_t len) \ { \ + struct __struct *gs = to_##__struct(item); \ int ret; \ \ ret = usb_string_copy(page, &gs->__name); \ @@ -19,30 +20,20 @@ int check_user_usb_string(const char *name, } #define GS_STRINGS_R(__struct, __name) \ - static ssize_t __struct##_##__name##_show(struct __struct *gs, \ - char *page) \ +static ssize_t __struct##_##__name##_show(struct config_item *item, char *page) \ { \ + struct __struct *gs = to_##__struct(item); \ return sprintf(page, "%s\n", gs->__name ?: ""); \ } -#define GS_STRING_ITEM_ATTR(struct_name, name) \ - static struct struct_name##_attribute struct_name##_##name = \ - __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \ - struct_name##_##name##_show, \ - struct_name##_##name##_store) - #define GS_STRINGS_RW(struct_name, _name) \ GS_STRINGS_R(struct_name, _name) \ GS_STRINGS_W(struct_name, _name) \ - GS_STRING_ITEM_ATTR(struct_name, _name) + CONFIGFS_ATTR(struct_name##_, _name) #define USB_CONFIG_STRING_RW_OPS(struct_in) \ - CONFIGFS_ATTR_OPS(struct_in); \ - \ static struct configfs_item_operations struct_in##_langid_item_ops = { \ .release = struct_in##_attr_release, \ - .show_attribute = struct_in##_attr_show, \ - .store_attribute = struct_in##_attr_store, \ }; \ \ static struct config_item_type struct_in##_langid_type = { \ -- cgit v1.2.3-71-gd317 From 2eafd72939fda6118e27d3ee859684987f43921b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 3 Oct 2015 15:32:55 +0200 Subject: target: use per-attribute show and store methods This also allows to remove the target-specific old configfs macros, and gets rid of the target_core_fabric_configfs.h header which only had one function declaration left that could be moved to a better place. Signed-off-by: Christoph Hellwig Reviewed-by: Nicholas Bellinger Acked-by: Nicholas Bellinger Signed-off-by: Nicholas Bellinger --- Documentation/target/tcm_mod_builder.py | 17 - drivers/infiniband/ulp/srpt/ib_srpt.c | 78 +- drivers/scsi/qla2xxx/tcm_qla2xxx.c | 153 ++-- drivers/target/iscsi/iscsi_target_configfs.c | 791 ++++++----------- drivers/target/iscsi/iscsi_target_stat.c | 666 ++++++-------- drivers/target/loopback/tcm_loop.c | 60 +- drivers/target/sbp/sbp_target.c | 87 +- drivers/target/target_core_configfs.c | 1209 ++++++++++---------------- drivers/target/target_core_fabric_configfs.c | 275 ++---- drivers/target/target_core_internal.h | 3 + drivers/target/target_core_stat.c | 918 ++++++++----------- drivers/target/tcm_fc/tfc_cmd.c | 1 - drivers/target/tcm_fc/tfc_conf.c | 44 +- drivers/target/tcm_fc/tfc_io.c | 1 - drivers/target/tcm_fc/tfc_sess.c | 1 - drivers/usb/gadget/legacy/tcm_usb_gadget.c | 44 +- drivers/vhost/scsi.c | 41 +- drivers/xen/xen-scsiback.c | 32 +- include/target/configfs_macros.h | 147 ---- include/target/target_core_base.h | 60 ++ include/target/target_core_fabric_configfs.h | 122 --- 21 files changed, 1689 insertions(+), 3061 deletions(-) delete mode 100644 include/target/configfs_macros.h delete mode 100644 include/target/target_core_fabric_configfs.h (limited to 'include') diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py index cda56df9b8a7..7d370c9b1450 100755 --- a/Documentation/target/tcm_mod_builder.py +++ b/Documentation/target/tcm_mod_builder.py @@ -203,8 +203,6 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += "#include \n\n" buf += "#include \n" buf += "#include \n" - buf += "#include \n" - buf += "#include \n\n" buf += "#include \"" + fabric_mod_name + "_base.h\"\n" buf += "#include \"" + fabric_mod_name + "_fabric.h\"\n\n" @@ -283,19 +281,6 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += " struct " + fabric_mod_name + "_" + fabric_mod_port + ", " + fabric_mod_port + "_wwn);\n" buf += " kfree(" + fabric_mod_port + ");\n" buf += "}\n\n" - buf += "static ssize_t " + fabric_mod_name + "_wwn_show_attr_version(\n" - buf += " struct target_fabric_configfs *tf,\n" - buf += " char *page)\n" - buf += "{\n" - buf += " return sprintf(page, \"" + fabric_mod_name.upper() + " fabric module %s on %s/%s\"\n" - buf += " \"on \"UTS_RELEASE\"\\n\", " + fabric_mod_name.upper() + "_VERSION, utsname()->sysname,\n" - buf += " utsname()->machine);\n" - buf += "}\n\n" - buf += "TF_WWN_ATTR_RO(" + fabric_mod_name + ", version);\n\n" - buf += "static struct configfs_attribute *" + fabric_mod_name + "_wwn_attrs[] = {\n" - buf += " &" + fabric_mod_name + "_wwn_version.attr,\n" - buf += " NULL,\n" - buf += "};\n\n" buf += "static const struct target_core_fabric_ops " + fabric_mod_name + "_ops = {\n" buf += " .module = THIS_MODULE,\n" @@ -328,8 +313,6 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name): buf += " .fabric_drop_wwn = " + fabric_mod_name + "_drop_" + fabric_mod_port + ",\n" buf += " .fabric_make_tpg = " + fabric_mod_name + "_make_tpg,\n" buf += " .fabric_drop_tpg = " + fabric_mod_name + "_drop_tpg,\n" - buf += "\n" - buf += " .tfc_wwn_attrs = " + fabric_mod_name + "_wwn_attrs,\n" buf += "};\n\n" buf += "static int __init " + fabric_mod_name + "_init(void)\n" diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index f6fe0414139b..231d29cc0419 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -43,9 +43,7 @@ #include #include #include -#include #include -#include #include #include "ib_srpt.h" @@ -3545,20 +3543,19 @@ static void srpt_cleanup_nodeacl(struct se_node_acl *se_nacl) spin_unlock_irq(&sport->port_acl_lock); } -static ssize_t srpt_tpg_attrib_show_srp_max_rdma_size( - struct se_portal_group *se_tpg, - char *page) +static ssize_t srpt_tpg_attrib_srp_max_rdma_size_show(struct config_item *item, + char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1); return sprintf(page, "%u\n", sport->port_attrib.srp_max_rdma_size); } -static ssize_t srpt_tpg_attrib_store_srp_max_rdma_size( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t srpt_tpg_attrib_srp_max_rdma_size_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1); unsigned long val; int ret; @@ -3583,22 +3580,19 @@ static ssize_t srpt_tpg_attrib_store_srp_max_rdma_size( return count; } -TF_TPG_ATTRIB_ATTR(srpt, srp_max_rdma_size, S_IRUGO | S_IWUSR); - -static ssize_t srpt_tpg_attrib_show_srp_max_rsp_size( - struct se_portal_group *se_tpg, - char *page) +static ssize_t srpt_tpg_attrib_srp_max_rsp_size_show(struct config_item *item, + char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1); return sprintf(page, "%u\n", sport->port_attrib.srp_max_rsp_size); } -static ssize_t srpt_tpg_attrib_store_srp_max_rsp_size( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t srpt_tpg_attrib_srp_max_rsp_size_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1); unsigned long val; int ret; @@ -3623,22 +3617,19 @@ static ssize_t srpt_tpg_attrib_store_srp_max_rsp_size( return count; } -TF_TPG_ATTRIB_ATTR(srpt, srp_max_rsp_size, S_IRUGO | S_IWUSR); - -static ssize_t srpt_tpg_attrib_show_srp_sq_size( - struct se_portal_group *se_tpg, - char *page) +static ssize_t srpt_tpg_attrib_srp_sq_size_show(struct config_item *item, + char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1); return sprintf(page, "%u\n", sport->port_attrib.srp_sq_size); } -static ssize_t srpt_tpg_attrib_store_srp_sq_size( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t srpt_tpg_attrib_srp_sq_size_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1); unsigned long val; int ret; @@ -3663,29 +3654,29 @@ static ssize_t srpt_tpg_attrib_store_srp_sq_size( return count; } -TF_TPG_ATTRIB_ATTR(srpt, srp_sq_size, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(srpt_tpg_attrib_, srp_max_rdma_size); +CONFIGFS_ATTR(srpt_tpg_attrib_, srp_max_rsp_size); +CONFIGFS_ATTR(srpt_tpg_attrib_, srp_sq_size); static struct configfs_attribute *srpt_tpg_attrib_attrs[] = { - &srpt_tpg_attrib_srp_max_rdma_size.attr, - &srpt_tpg_attrib_srp_max_rsp_size.attr, - &srpt_tpg_attrib_srp_sq_size.attr, + &srpt_tpg_attrib_attr_srp_max_rdma_size, + &srpt_tpg_attrib_attr_srp_max_rsp_size, + &srpt_tpg_attrib_attr_srp_sq_size, NULL, }; -static ssize_t srpt_tpg_show_enable( - struct se_portal_group *se_tpg, - char *page) +static ssize_t srpt_tpg_enable_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1); return snprintf(page, PAGE_SIZE, "%d\n", (sport->enabled) ? 1: 0); } -static ssize_t srpt_tpg_store_enable( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t srpt_tpg_enable_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct srpt_port *sport = container_of(se_tpg, struct srpt_port, port_tpg_1); unsigned long tmp; int ret; @@ -3708,10 +3699,10 @@ static ssize_t srpt_tpg_store_enable( return count; } -TF_TPG_BASE_ATTR(srpt, enable, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(srpt_tpg_, enable); static struct configfs_attribute *srpt_tpg_attrs[] = { - &srpt_tpg_enable.attr, + &srpt_tpg_attr_enable, NULL, }; @@ -3781,16 +3772,15 @@ static void srpt_drop_tport(struct se_wwn *wwn) pr_debug("drop_tport(%s\n", config_item_name(&sport->port_wwn.wwn_group.cg_item)); } -static ssize_t srpt_wwn_show_attr_version(struct target_fabric_configfs *tf, - char *buf) +static ssize_t srpt_wwn_version_show(struct config_item *item, char *buf) { return scnprintf(buf, PAGE_SIZE, "%s\n", DRV_VERSION); } -TF_WWN_ATTR_RO(srpt, version); +CONFIGFS_ATTR_RO(srpt_wwn_, version); static struct configfs_attribute *srpt_wwn_attrs[] = { - &srpt_wwn_version.attr, + &srpt_wwn_attr_version, NULL, }; diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index ac65cb7b4886..3ba2e9564b9a 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -43,8 +43,6 @@ #include #include #include -#include -#include #include "qla_def.h" #include "qla_target.h" @@ -729,23 +727,23 @@ static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl, #define DEF_QLA_TPG_ATTRIB(name) \ \ -static ssize_t tcm_qla2xxx_tpg_attrib_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \ + struct config_item *item, char *page) \ { \ + struct se_portal_group *se_tpg = attrib_to_tpg(item); \ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ struct tcm_qla2xxx_tpg, se_tpg); \ \ return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ } \ \ -static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \ - struct se_portal_group *se_tpg, \ - const char *page, \ - size_t count) \ +static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \ + struct config_item *item, const char *page, size_t count) \ { \ + struct se_portal_group *se_tpg = attrib_to_tpg(item); \ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ struct tcm_qla2xxx_tpg, se_tpg); \ + struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ unsigned long val; \ int ret; \ \ @@ -755,81 +753,39 @@ static ssize_t tcm_qla2xxx_tpg_attrib_store_##name( \ " ret: %d\n", ret); \ return -EINVAL; \ } \ - ret = tcm_qla2xxx_set_attrib_##name(tpg, val); \ - \ - return (!ret) ? count : -EINVAL; \ -} - -#define DEF_QLA_TPG_ATTR_BOOL(_name) \ - \ -static int tcm_qla2xxx_set_attrib_##_name( \ - struct tcm_qla2xxx_tpg *tpg, \ - unsigned long val) \ -{ \ - struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \ \ if ((val != 0) && (val != 1)) { \ pr_err("Illegal boolean value %lu\n", val); \ return -EINVAL; \ } \ \ - a->_name = val; \ - return 0; \ -} - -#define QLA_TPG_ATTR(_name, _mode) \ - TF_TPG_ATTRIB_ATTR(tcm_qla2xxx, _name, _mode); + a->name = val; \ + \ + return count; \ +} \ +CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name) -/* - * Define tcm_qla2xxx_tpg_attrib_s_generate_node_acls - */ -DEF_QLA_TPG_ATTR_BOOL(generate_node_acls); DEF_QLA_TPG_ATTRIB(generate_node_acls); -QLA_TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); - -/* - Define tcm_qla2xxx_attrib_s_cache_dynamic_acls - */ -DEF_QLA_TPG_ATTR_BOOL(cache_dynamic_acls); DEF_QLA_TPG_ATTRIB(cache_dynamic_acls); -QLA_TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); - -/* - * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_write_protect - */ -DEF_QLA_TPG_ATTR_BOOL(demo_mode_write_protect); DEF_QLA_TPG_ATTRIB(demo_mode_write_protect); -QLA_TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); - -/* - * Define tcm_qla2xxx_tpg_attrib_s_prod_mode_write_protect - */ -DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect); DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); -QLA_TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); - -/* - * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_login_only - */ -DEF_QLA_TPG_ATTR_BOOL(demo_mode_login_only); DEF_QLA_TPG_ATTRIB(demo_mode_login_only); -QLA_TPG_ATTR(demo_mode_login_only, S_IRUGO | S_IWUSR); static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { - &tcm_qla2xxx_tpg_attrib_generate_node_acls.attr, - &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr, - &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr, - &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr, - &tcm_qla2xxx_tpg_attrib_demo_mode_login_only.attr, + &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls, + &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls, + &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect, + &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect, + &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only, NULL, }; /* End items for tcm_qla2xxx_tpg_attrib_cit */ -static ssize_t tcm_qla2xxx_tpg_show_enable( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item, + char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); @@ -865,11 +821,10 @@ static void tcm_qla2xxx_undepend_tpg(struct work_struct *work) complete(&base_tpg->tpg_base_comp); } -static ssize_t tcm_qla2xxx_tpg_store_enable( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); unsigned long op; @@ -909,22 +864,16 @@ static ssize_t tcm_qla2xxx_tpg_store_enable( return count; } -TF_TPG_BASE_ATTR(tcm_qla2xxx, enable, S_IRUGO | S_IWUSR); - -static ssize_t tcm_qla2xxx_tpg_show_dynamic_sessions( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item, + char *page) { - return target_show_dynamic_sessions(se_tpg, page); + return target_show_dynamic_sessions(to_tpg(item), page); } -TF_TPG_BASE_ATTR_RO(tcm_qla2xxx, dynamic_sessions); - -static ssize_t tcm_qla2xxx_tpg_store_fabric_prot_type( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); unsigned long val; @@ -943,21 +892,24 @@ static ssize_t tcm_qla2xxx_tpg_store_fabric_prot_type( return count; } -static ssize_t tcm_qla2xxx_tpg_show_fabric_prot_type( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item, + char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg); return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type); } -TF_TPG_BASE_ATTR(tcm_qla2xxx, fabric_prot_type, S_IRUGO | S_IWUSR); + +CONFIGFS_ATTR_WO(tcm_qla2xxx_tpg_, enable); +CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions); +CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type); static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = { - &tcm_qla2xxx_tpg_enable.attr, - &tcm_qla2xxx_tpg_dynamic_sessions.attr, - &tcm_qla2xxx_tpg_fabric_prot_type.attr, + &tcm_qla2xxx_tpg_attr_enable, + &tcm_qla2xxx_tpg_attr_dynamic_sessions, + &tcm_qla2xxx_tpg_attr_fabric_prot_type, NULL, }; @@ -1030,18 +982,16 @@ static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg) kfree(tpg); } -static ssize_t tcm_qla2xxx_npiv_tpg_show_enable( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item, + char *page) { - return tcm_qla2xxx_tpg_show_enable(se_tpg, page); + return tcm_qla2xxx_tpg_enable_show(item, page); } -static ssize_t tcm_qla2xxx_npiv_tpg_store_enable( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct se_wwn *se_wwn = se_tpg->se_tpg_wwn; struct tcm_qla2xxx_lport *lport = container_of(se_wwn, struct tcm_qla2xxx_lport, lport_wwn); @@ -1077,10 +1027,10 @@ static ssize_t tcm_qla2xxx_npiv_tpg_store_enable( return count; } -TF_TPG_BASE_ATTR(tcm_qla2xxx_npiv, enable, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable); static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = { - &tcm_qla2xxx_npiv_tpg_enable.attr, + &tcm_qla2xxx_npiv_tpg_attr_enable, NULL, }; @@ -1783,9 +1733,8 @@ static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn) } -static ssize_t tcm_qla2xxx_wwn_show_attr_version( - struct target_fabric_configfs *tf, - char *page) +static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item, + char *page) { return sprintf(page, "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on " @@ -1793,10 +1742,10 @@ static ssize_t tcm_qla2xxx_wwn_show_attr_version( utsname()->machine); } -TF_WWN_ATTR_RO(tcm_qla2xxx, version); +CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version); static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = { - &tcm_qla2xxx_wwn_version.attr, + &tcm_qla2xxx_wwn_attr_version, NULL, }; diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c index c7461d770d3a..255204cc43e6 100644 --- a/drivers/target/iscsi/iscsi_target_configfs.c +++ b/drivers/target/iscsi/iscsi_target_configfs.c @@ -23,8 +23,6 @@ #include #include #include -#include -#include #include #include @@ -37,20 +35,17 @@ #include "iscsi_target.h" #include -struct lio_target_configfs_attribute { - struct configfs_attribute attr; - ssize_t (*show)(void *, char *); - ssize_t (*store)(void *, const char *, size_t); -}; /* Start items for lio_target_portal_cit */ -static ssize_t lio_target_np_show_sctp( - struct se_tpg_np *se_tpg_np, - char *page) +static inline struct iscsi_tpg_np *to_iscsi_tpg_np(struct config_item *item) +{ + return container_of(to_tpg_np(item), struct iscsi_tpg_np, se_tpg_np); +} + +static ssize_t lio_target_np_sctp_show(struct config_item *item, char *page) { - struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, - struct iscsi_tpg_np, se_tpg_np); + struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); struct iscsi_tpg_np *tpg_np_sctp; ssize_t rb; @@ -63,15 +58,12 @@ static ssize_t lio_target_np_show_sctp( return rb; } -static ssize_t lio_target_np_store_sctp( - struct se_tpg_np *se_tpg_np, - const char *page, - size_t count) +static ssize_t lio_target_np_sctp_store(struct config_item *item, + const char *page, size_t count) { + struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); struct iscsi_np *np; struct iscsi_portal_group *tpg; - struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, - struct iscsi_tpg_np, se_tpg_np); struct iscsi_tpg_np *tpg_np_sctp = NULL; u32 op; int ret; @@ -119,14 +111,9 @@ out: return -EINVAL; } -TF_NP_BASE_ATTR(lio_target, sctp, S_IRUGO | S_IWUSR); - -static ssize_t lio_target_np_show_iser( - struct se_tpg_np *se_tpg_np, - char *page) +static ssize_t lio_target_np_iser_show(struct config_item *item, char *page) { - struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, - struct iscsi_tpg_np, se_tpg_np); + struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); struct iscsi_tpg_np *tpg_np_iser; ssize_t rb; @@ -139,15 +126,12 @@ static ssize_t lio_target_np_show_iser( return rb; } -static ssize_t lio_target_np_store_iser( - struct se_tpg_np *se_tpg_np, - const char *page, - size_t count) +static ssize_t lio_target_np_iser_store(struct config_item *item, + const char *page, size_t count) { + struct iscsi_tpg_np *tpg_np = to_iscsi_tpg_np(item); struct iscsi_np *np; struct iscsi_portal_group *tpg; - struct iscsi_tpg_np *tpg_np = container_of(se_tpg_np, - struct iscsi_tpg_np, se_tpg_np); struct iscsi_tpg_np *tpg_np_iser = NULL; char *endptr; u32 op; @@ -198,11 +182,12 @@ out: return rc; } -TF_NP_BASE_ATTR(lio_target, iser, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(lio_target_np_, sctp); +CONFIGFS_ATTR(lio_target_np_, iser); static struct configfs_attribute *lio_target_portal_attrs[] = { - &lio_target_np_sctp.attr, - &lio_target_np_iser.attr, + &lio_target_np_attr_sctp, + &lio_target_np_attr_iser, NULL, }; @@ -360,22 +345,21 @@ out: /* Start items for lio_target_nacl_attrib_cit */ -#define DEF_NACL_ATTRIB(name) \ -static ssize_t iscsi_nacl_attrib_show_##name( \ - struct se_node_acl *se_nacl, \ - char *page) \ +#define ISCSI_NACL_ATTR(name) \ +static ssize_t iscsi_nacl_attrib_##name##_show(struct config_item *item,\ + char *page) \ { \ + struct se_node_acl *se_nacl = attrib_to_nacl(item); \ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ se_node_acl); \ \ return sprintf(page, "%u\n", nacl->node_attrib.name); \ } \ \ -static ssize_t iscsi_nacl_attrib_store_##name( \ - struct se_node_acl *se_nacl, \ - const char *page, \ - size_t count) \ +static ssize_t iscsi_nacl_attrib_##name##_store(struct config_item *item,\ + const char *page, size_t count) \ { \ + struct se_node_acl *se_nacl = attrib_to_nacl(item); \ struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \ se_node_acl); \ u32 val; \ @@ -389,59 +373,28 @@ static ssize_t iscsi_nacl_attrib_store_##name( \ return ret; \ \ return count; \ -} +} \ + \ +CONFIGFS_ATTR(iscsi_nacl_attrib_, name) -#define NACL_ATTR(_name, _mode) TF_NACL_ATTRIB_ATTR(iscsi, _name, _mode); -/* - * Define iscsi_node_attrib_s_dataout_timeout - */ -DEF_NACL_ATTRIB(dataout_timeout); -NACL_ATTR(dataout_timeout, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_dataout_timeout_retries - */ -DEF_NACL_ATTRIB(dataout_timeout_retries); -NACL_ATTR(dataout_timeout_retries, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_default_erl - */ -DEF_NACL_ATTRIB(default_erl); -NACL_ATTR(default_erl, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_nopin_timeout - */ -DEF_NACL_ATTRIB(nopin_timeout); -NACL_ATTR(nopin_timeout, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_nopin_response_timeout - */ -DEF_NACL_ATTRIB(nopin_response_timeout); -NACL_ATTR(nopin_response_timeout, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_random_datain_pdu_offsets - */ -DEF_NACL_ATTRIB(random_datain_pdu_offsets); -NACL_ATTR(random_datain_pdu_offsets, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_random_datain_seq_offsets - */ -DEF_NACL_ATTRIB(random_datain_seq_offsets); -NACL_ATTR(random_datain_seq_offsets, S_IRUGO | S_IWUSR); -/* - * Define iscsi_node_attrib_s_random_r2t_offsets - */ -DEF_NACL_ATTRIB(random_r2t_offsets); -NACL_ATTR(random_r2t_offsets, S_IRUGO | S_IWUSR); +ISCSI_NACL_ATTR(dataout_timeout); +ISCSI_NACL_ATTR(dataout_timeout_retries); +ISCSI_NACL_ATTR(default_erl); +ISCSI_NACL_ATTR(nopin_timeout); +ISCSI_NACL_ATTR(nopin_response_timeout); +ISCSI_NACL_ATTR(random_datain_pdu_offsets); +ISCSI_NACL_ATTR(random_datain_seq_offsets); +ISCSI_NACL_ATTR(random_r2t_offsets); static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { - &iscsi_nacl_attrib_dataout_timeout.attr, - &iscsi_nacl_attrib_dataout_timeout_retries.attr, - &iscsi_nacl_attrib_default_erl.attr, - &iscsi_nacl_attrib_nopin_timeout.attr, - &iscsi_nacl_attrib_nopin_response_timeout.attr, - &iscsi_nacl_attrib_random_datain_pdu_offsets.attr, - &iscsi_nacl_attrib_random_datain_seq_offsets.attr, - &iscsi_nacl_attrib_random_r2t_offsets.attr, + &iscsi_nacl_attrib_attr_dataout_timeout, + &iscsi_nacl_attrib_attr_dataout_timeout_retries, + &iscsi_nacl_attrib_attr_default_erl, + &iscsi_nacl_attrib_attr_nopin_timeout, + &iscsi_nacl_attrib_attr_nopin_response_timeout, + &iscsi_nacl_attrib_attr_random_datain_pdu_offsets, + &iscsi_nacl_attrib_attr_random_datain_seq_offsets, + &iscsi_nacl_attrib_attr_random_r2t_offsets, NULL, }; @@ -450,7 +403,7 @@ static struct configfs_attribute *lio_target_nacl_attrib_attrs[] = { /* Start items for lio_target_nacl_auth_cit */ #define __DEF_NACL_AUTH_STR(prefix, name, flags) \ -static ssize_t __iscsi_##prefix##_show_##name( \ +static ssize_t __iscsi_##prefix##_##name##_show( \ struct iscsi_node_acl *nacl, \ char *page) \ { \ @@ -461,7 +414,7 @@ static ssize_t __iscsi_##prefix##_show_##name( \ return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ } \ \ -static ssize_t __iscsi_##prefix##_store_##name( \ +static ssize_t __iscsi_##prefix##_##name##_store( \ struct iscsi_node_acl *nacl, \ const char *page, \ size_t count) \ @@ -487,8 +440,35 @@ static ssize_t __iscsi_##prefix##_store_##name( \ return count; \ } +#define DEF_NACL_AUTH_STR(name, flags) \ + __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ +static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \ + char *page) \ +{ \ + struct se_node_acl *nacl = auth_to_nacl(item); \ + return __iscsi_nacl_auth_##name##_show(container_of(nacl, \ + struct iscsi_node_acl, se_node_acl), page); \ +} \ +static ssize_t iscsi_nacl_auth_##name##_store(struct config_item *item, \ + const char *page, size_t count) \ +{ \ + struct se_node_acl *nacl = auth_to_nacl(item); \ + return __iscsi_nacl_auth_##name##_store(container_of(nacl, \ + struct iscsi_node_acl, se_node_acl), page, count); \ +} \ + \ +CONFIGFS_ATTR(iscsi_nacl_auth_, name) + +/* + * One-way authentication userid + */ +DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); +DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); +DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); +DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); + #define __DEF_NACL_AUTH_INT(prefix, name) \ -static ssize_t __iscsi_##prefix##_show_##name( \ +static ssize_t __iscsi_##prefix##_##name##_show( \ struct iscsi_node_acl *nacl, \ char *page) \ { \ @@ -500,69 +480,26 @@ static ssize_t __iscsi_##prefix##_show_##name( \ return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ } -#define DEF_NACL_AUTH_STR(name, flags) \ - __DEF_NACL_AUTH_STR(nacl_auth, name, flags) \ -static ssize_t iscsi_nacl_auth_show_##name( \ - struct se_node_acl *nacl, \ - char *page) \ -{ \ - return __iscsi_nacl_auth_show_##name(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page); \ -} \ -static ssize_t iscsi_nacl_auth_store_##name( \ - struct se_node_acl *nacl, \ - const char *page, \ - size_t count) \ -{ \ - return __iscsi_nacl_auth_store_##name(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page, count); \ -} - #define DEF_NACL_AUTH_INT(name) \ __DEF_NACL_AUTH_INT(nacl_auth, name) \ -static ssize_t iscsi_nacl_auth_show_##name( \ - struct se_node_acl *nacl, \ - char *page) \ +static ssize_t iscsi_nacl_auth_##name##_show(struct config_item *item, \ + char *page) \ { \ - return __iscsi_nacl_auth_show_##name(container_of(nacl, \ - struct iscsi_node_acl, se_node_acl), page); \ -} - -#define AUTH_ATTR(_name, _mode) TF_NACL_AUTH_ATTR(iscsi, _name, _mode); -#define AUTH_ATTR_RO(_name) TF_NACL_AUTH_ATTR_RO(iscsi, _name); + struct se_node_acl *nacl = auth_to_nacl(item); \ + return __iscsi_nacl_auth_##name##_show(container_of(nacl, \ + struct iscsi_node_acl, se_node_acl), page); \ +} \ + \ +CONFIGFS_ATTR_RO(iscsi_nacl_auth_, name) -/* - * One-way authentication userid - */ -DEF_NACL_AUTH_STR(userid, NAF_USERID_SET); -AUTH_ATTR(userid, S_IRUGO | S_IWUSR); -/* - * One-way authentication password - */ -DEF_NACL_AUTH_STR(password, NAF_PASSWORD_SET); -AUTH_ATTR(password, S_IRUGO | S_IWUSR); -/* - * Enforce mutual authentication - */ DEF_NACL_AUTH_INT(authenticate_target); -AUTH_ATTR_RO(authenticate_target); -/* - * Mutual authentication userid - */ -DEF_NACL_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); -AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); -/* - * Mutual authentication password - */ -DEF_NACL_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); -AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { - &iscsi_nacl_auth_userid.attr, - &iscsi_nacl_auth_password.attr, - &iscsi_nacl_auth_authenticate_target.attr, - &iscsi_nacl_auth_userid_mutual.attr, - &iscsi_nacl_auth_password_mutual.attr, + &iscsi_nacl_auth_attr_userid, + &iscsi_nacl_auth_attr_password, + &iscsi_nacl_auth_attr_authenticate_target, + &iscsi_nacl_auth_attr_userid_mutual, + &iscsi_nacl_auth_attr_password_mutual, NULL, }; @@ -570,11 +507,11 @@ static struct configfs_attribute *lio_target_nacl_auth_attrs[] = { /* Start items for lio_target_nacl_param_cit */ -#define DEF_NACL_PARAM(name) \ -static ssize_t iscsi_nacl_param_show_##name( \ - struct se_node_acl *se_nacl, \ - char *page) \ +#define ISCSI_NACL_PARAM(name) \ +static ssize_t iscsi_nacl_param_##name##_show(struct config_item *item, \ + char *page) \ { \ + struct se_node_acl *se_nacl = param_to_nacl(item); \ struct iscsi_session *sess; \ struct se_session *se_sess; \ ssize_t rb; \ @@ -592,55 +529,34 @@ static ssize_t iscsi_nacl_param_show_##name( \ spin_unlock_bh(&se_nacl->nacl_sess_lock); \ \ return rb; \ -} - -#define NACL_PARAM_ATTR(_name) TF_NACL_PARAM_ATTR_RO(iscsi, _name); - -DEF_NACL_PARAM(MaxConnections); -NACL_PARAM_ATTR(MaxConnections); - -DEF_NACL_PARAM(InitialR2T); -NACL_PARAM_ATTR(InitialR2T); - -DEF_NACL_PARAM(ImmediateData); -NACL_PARAM_ATTR(ImmediateData); - -DEF_NACL_PARAM(MaxBurstLength); -NACL_PARAM_ATTR(MaxBurstLength); - -DEF_NACL_PARAM(FirstBurstLength); -NACL_PARAM_ATTR(FirstBurstLength); - -DEF_NACL_PARAM(DefaultTime2Wait); -NACL_PARAM_ATTR(DefaultTime2Wait); - -DEF_NACL_PARAM(DefaultTime2Retain); -NACL_PARAM_ATTR(DefaultTime2Retain); - -DEF_NACL_PARAM(MaxOutstandingR2T); -NACL_PARAM_ATTR(MaxOutstandingR2T); - -DEF_NACL_PARAM(DataPDUInOrder); -NACL_PARAM_ATTR(DataPDUInOrder); - -DEF_NACL_PARAM(DataSequenceInOrder); -NACL_PARAM_ATTR(DataSequenceInOrder); - -DEF_NACL_PARAM(ErrorRecoveryLevel); -NACL_PARAM_ATTR(ErrorRecoveryLevel); +} \ + \ +CONFIGFS_ATTR_RO(iscsi_nacl_param_, name) + +ISCSI_NACL_PARAM(MaxConnections); +ISCSI_NACL_PARAM(InitialR2T); +ISCSI_NACL_PARAM(ImmediateData); +ISCSI_NACL_PARAM(MaxBurstLength); +ISCSI_NACL_PARAM(FirstBurstLength); +ISCSI_NACL_PARAM(DefaultTime2Wait); +ISCSI_NACL_PARAM(DefaultTime2Retain); +ISCSI_NACL_PARAM(MaxOutstandingR2T); +ISCSI_NACL_PARAM(DataPDUInOrder); +ISCSI_NACL_PARAM(DataSequenceInOrder); +ISCSI_NACL_PARAM(ErrorRecoveryLevel); static struct configfs_attribute *lio_target_nacl_param_attrs[] = { - &iscsi_nacl_param_MaxConnections.attr, - &iscsi_nacl_param_InitialR2T.attr, - &iscsi_nacl_param_ImmediateData.attr, - &iscsi_nacl_param_MaxBurstLength.attr, - &iscsi_nacl_param_FirstBurstLength.attr, - &iscsi_nacl_param_DefaultTime2Wait.attr, - &iscsi_nacl_param_DefaultTime2Retain.attr, - &iscsi_nacl_param_MaxOutstandingR2T.attr, - &iscsi_nacl_param_DataPDUInOrder.attr, - &iscsi_nacl_param_DataSequenceInOrder.attr, - &iscsi_nacl_param_ErrorRecoveryLevel.attr, + &iscsi_nacl_param_attr_MaxConnections, + &iscsi_nacl_param_attr_InitialR2T, + &iscsi_nacl_param_attr_ImmediateData, + &iscsi_nacl_param_attr_MaxBurstLength, + &iscsi_nacl_param_attr_FirstBurstLength, + &iscsi_nacl_param_attr_DefaultTime2Wait, + &iscsi_nacl_param_attr_DefaultTime2Retain, + &iscsi_nacl_param_attr_MaxOutstandingR2T, + &iscsi_nacl_param_attr_DataPDUInOrder, + &iscsi_nacl_param_attr_DataSequenceInOrder, + &iscsi_nacl_param_attr_ErrorRecoveryLevel, NULL, }; @@ -648,10 +564,9 @@ static struct configfs_attribute *lio_target_nacl_param_attrs[] = { /* Start items for lio_target_acl_cit */ -static ssize_t lio_target_nacl_show_info( - struct se_node_acl *se_nacl, - char *page) +static ssize_t lio_target_nacl_info_show(struct config_item *item, char *page) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct iscsi_session *sess; struct iscsi_conn *conn; struct se_session *se_sess; @@ -766,20 +681,16 @@ static ssize_t lio_target_nacl_show_info( return rb; } -TF_NACL_BASE_ATTR_RO(lio_target, info); - -static ssize_t lio_target_nacl_show_cmdsn_depth( - struct se_node_acl *se_nacl, - char *page) +static ssize_t lio_target_nacl_cmdsn_depth_show(struct config_item *item, + char *page) { - return sprintf(page, "%u\n", se_nacl->queue_depth); + return sprintf(page, "%u\n", acl_to_nacl(item)->queue_depth); } -static ssize_t lio_target_nacl_store_cmdsn_depth( - struct se_node_acl *se_nacl, - const char *page, - size_t count) +static ssize_t lio_target_nacl_cmdsn_depth_store(struct config_item *item, + const char *page, size_t count) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct se_portal_group *se_tpg = se_nacl->se_tpg; struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); @@ -829,20 +740,15 @@ static ssize_t lio_target_nacl_store_cmdsn_depth( return (!ret) ? count : (ssize_t)ret; } -TF_NACL_BASE_ATTR(lio_target, cmdsn_depth, S_IRUGO | S_IWUSR); - -static ssize_t lio_target_nacl_show_tag( - struct se_node_acl *se_nacl, - char *page) +static ssize_t lio_target_nacl_tag_show(struct config_item *item, char *page) { - return snprintf(page, PAGE_SIZE, "%s", se_nacl->acl_tag); + return snprintf(page, PAGE_SIZE, "%s", acl_to_nacl(item)->acl_tag); } -static ssize_t lio_target_nacl_store_tag( - struct se_node_acl *se_nacl, - const char *page, - size_t count) +static ssize_t lio_target_nacl_tag_store(struct config_item *item, + const char *page, size_t count) { + struct se_node_acl *se_nacl = acl_to_nacl(item); int ret; ret = core_tpg_set_initiator_node_tag(se_nacl->se_tpg, se_nacl, page); @@ -852,12 +758,14 @@ static ssize_t lio_target_nacl_store_tag( return count; } -TF_NACL_BASE_ATTR(lio_target, tag, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR_RO(lio_target_nacl_, info); +CONFIGFS_ATTR(lio_target_nacl_, cmdsn_depth); +CONFIGFS_ATTR(lio_target_nacl_, tag); static struct configfs_attribute *lio_target_initiator_attrs[] = { - &lio_target_nacl_info.attr, - &lio_target_nacl_cmdsn_depth.attr, - &lio_target_nacl_tag.attr, + &lio_target_nacl_attr_info, + &lio_target_nacl_attr_cmdsn_depth, + &lio_target_nacl_attr_tag, NULL, }; @@ -907,10 +815,10 @@ static void lio_target_cleanup_nodeacl( struct se_node_acl *se_nacl) #define DEF_TPG_ATTRIB(name) \ \ -static ssize_t iscsi_tpg_attrib_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t iscsi_tpg_attrib_##name##_show(struct config_item *item, \ + char *page) \ { \ + struct se_portal_group *se_tpg = attrib_to_tpg(item); \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ ssize_t rb; \ @@ -923,11 +831,10 @@ static ssize_t iscsi_tpg_attrib_show_##name( \ return rb; \ } \ \ -static ssize_t iscsi_tpg_attrib_store_##name( \ - struct se_portal_group *se_tpg, \ - const char *page, \ - size_t count) \ +static ssize_t iscsi_tpg_attrib_##name##_store(struct config_item *item,\ + const char *page, size_t count) \ { \ + struct se_portal_group *se_tpg = attrib_to_tpg(item); \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ u32 val; \ @@ -948,90 +855,37 @@ static ssize_t iscsi_tpg_attrib_store_##name( \ out: \ iscsit_put_tpg(tpg); \ return ret; \ -} - -#define TPG_ATTR(_name, _mode) TF_TPG_ATTRIB_ATTR(iscsi, _name, _mode); +} \ +CONFIGFS_ATTR(iscsi_tpg_attrib_, name) -/* - * Define iscsi_tpg_attrib_s_authentication - */ DEF_TPG_ATTRIB(authentication); -TPG_ATTR(authentication, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_login_timeout - */ DEF_TPG_ATTRIB(login_timeout); -TPG_ATTR(login_timeout, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_netif_timeout - */ DEF_TPG_ATTRIB(netif_timeout); -TPG_ATTR(netif_timeout, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_generate_node_acls - */ DEF_TPG_ATTRIB(generate_node_acls); -TPG_ATTR(generate_node_acls, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_default_cmdsn_depth - */ DEF_TPG_ATTRIB(default_cmdsn_depth); -TPG_ATTR(default_cmdsn_depth, S_IRUGO | S_IWUSR); -/* - Define iscsi_tpg_attrib_s_cache_dynamic_acls - */ DEF_TPG_ATTRIB(cache_dynamic_acls); -TPG_ATTR(cache_dynamic_acls, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_demo_mode_write_protect - */ DEF_TPG_ATTRIB(demo_mode_write_protect); -TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_prod_mode_write_protect - */ DEF_TPG_ATTRIB(prod_mode_write_protect); -TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_demo_mode_discovery, - */ DEF_TPG_ATTRIB(demo_mode_discovery); -TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_default_erl - */ DEF_TPG_ATTRIB(default_erl); -TPG_ATTR(default_erl, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_t10_pi - */ DEF_TPG_ATTRIB(t10_pi); -TPG_ATTR(t10_pi, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_fabric_prot_type - */ DEF_TPG_ATTRIB(fabric_prot_type); -TPG_ATTR(fabric_prot_type, S_IRUGO | S_IWUSR); -/* - * Define iscsi_tpg_attrib_s_tpg_enabled_sendtargets - */ DEF_TPG_ATTRIB(tpg_enabled_sendtargets); -TPG_ATTR(tpg_enabled_sendtargets, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { - &iscsi_tpg_attrib_authentication.attr, - &iscsi_tpg_attrib_login_timeout.attr, - &iscsi_tpg_attrib_netif_timeout.attr, - &iscsi_tpg_attrib_generate_node_acls.attr, - &iscsi_tpg_attrib_default_cmdsn_depth.attr, - &iscsi_tpg_attrib_cache_dynamic_acls.attr, - &iscsi_tpg_attrib_demo_mode_write_protect.attr, - &iscsi_tpg_attrib_prod_mode_write_protect.attr, - &iscsi_tpg_attrib_demo_mode_discovery.attr, - &iscsi_tpg_attrib_default_erl.attr, - &iscsi_tpg_attrib_t10_pi.attr, - &iscsi_tpg_attrib_fabric_prot_type.attr, - &iscsi_tpg_attrib_tpg_enabled_sendtargets.attr, + &iscsi_tpg_attrib_attr_authentication, + &iscsi_tpg_attrib_attr_login_timeout, + &iscsi_tpg_attrib_attr_netif_timeout, + &iscsi_tpg_attrib_attr_generate_node_acls, + &iscsi_tpg_attrib_attr_default_cmdsn_depth, + &iscsi_tpg_attrib_attr_cache_dynamic_acls, + &iscsi_tpg_attrib_attr_demo_mode_write_protect, + &iscsi_tpg_attrib_attr_prod_mode_write_protect, + &iscsi_tpg_attrib_attr_demo_mode_discovery, + &iscsi_tpg_attrib_attr_default_erl, + &iscsi_tpg_attrib_attr_t10_pi, + &iscsi_tpg_attrib_attr_fabric_prot_type, + &iscsi_tpg_attrib_attr_tpg_enabled_sendtargets, NULL, }; @@ -1040,9 +894,8 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = { /* Start items for lio_target_tpg_auth_cit */ #define __DEF_TPG_AUTH_STR(prefix, name, flags) \ -static ssize_t __iscsi_##prefix##_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \ + char *page) \ { \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ @@ -1054,10 +907,8 @@ static ssize_t __iscsi_##prefix##_show_##name( \ return snprintf(page, PAGE_SIZE, "%s\n", auth->name); \ } \ \ -static ssize_t __iscsi_##prefix##_store_##name( \ - struct se_portal_group *se_tpg, \ - const char *page, \ - size_t count) \ +static ssize_t __iscsi_##prefix##_##name##_store(struct se_portal_group *se_tpg,\ + const char *page, size_t count) \ { \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ @@ -1081,10 +932,31 @@ static ssize_t __iscsi_##prefix##_store_##name( \ return count; \ } +#define DEF_TPG_AUTH_STR(name, flags) \ + __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \ +static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \ + char *page) \ +{ \ + return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \ +} \ + \ +static ssize_t iscsi_tpg_auth_##name##_store(struct config_item *item, \ + const char *page, size_t count) \ +{ \ + return __iscsi_tpg_auth_##name##_store(auth_to_tpg(item), page, count); \ +} \ + \ +CONFIGFS_ATTR(iscsi_tpg_auth_, name); + + +DEF_TPG_AUTH_STR(userid, NAF_USERID_SET); +DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET); +DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); +DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); + #define __DEF_TPG_AUTH_INT(prefix, name) \ -static ssize_t __iscsi_##prefix##_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t __iscsi_##prefix##_##name##_show(struct se_portal_group *se_tpg, \ + char *page) \ { \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ @@ -1096,67 +968,23 @@ static ssize_t __iscsi_##prefix##_show_##name( \ return snprintf(page, PAGE_SIZE, "%d\n", auth->name); \ } -#define DEF_TPG_AUTH_STR(name, flags) \ - __DEF_TPG_AUTH_STR(tpg_auth, name, flags) \ -static ssize_t iscsi_tpg_auth_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ -{ \ - return __iscsi_tpg_auth_show_##name(se_tpg, page); \ -} \ - \ -static ssize_t iscsi_tpg_auth_store_##name( \ - struct se_portal_group *se_tpg, \ - const char *page, \ - size_t count) \ -{ \ - return __iscsi_tpg_auth_store_##name(se_tpg, page, count); \ -} - #define DEF_TPG_AUTH_INT(name) \ __DEF_TPG_AUTH_INT(tpg_auth, name) \ -static ssize_t iscsi_tpg_auth_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t iscsi_tpg_auth_##name##_show(struct config_item *item, \ + char *page) \ { \ - return __iscsi_tpg_auth_show_##name(se_tpg, page); \ -} - -#define TPG_AUTH_ATTR(_name, _mode) TF_TPG_AUTH_ATTR(iscsi, _name, _mode); -#define TPG_AUTH_ATTR_RO(_name) TF_TPG_AUTH_ATTR_RO(iscsi, _name); + return __iscsi_tpg_auth_##name##_show(auth_to_tpg(item), page); \ +} \ +CONFIGFS_ATTR_RO(iscsi_tpg_auth_, name); -/* - * * One-way authentication userid - * */ -DEF_TPG_AUTH_STR(userid, NAF_USERID_SET); -TPG_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); -/* - * * One-way authentication password - * */ -DEF_TPG_AUTH_STR(password, NAF_PASSWORD_SET); -TPG_AUTH_ATTR(password, S_IRUGO | S_IWUSR); -/* - * * Enforce mutual authentication - * */ DEF_TPG_AUTH_INT(authenticate_target); -TPG_AUTH_ATTR_RO(authenticate_target); -/* - * * Mutual authentication userid - * */ -DEF_TPG_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); -TPG_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); -/* - * * Mutual authentication password - * */ -DEF_TPG_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); -TPG_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_auth_attrs[] = { - &iscsi_tpg_auth_userid.attr, - &iscsi_tpg_auth_password.attr, - &iscsi_tpg_auth_authenticate_target.attr, - &iscsi_tpg_auth_userid_mutual.attr, - &iscsi_tpg_auth_password_mutual.attr, + &iscsi_tpg_auth_attr_userid, + &iscsi_tpg_auth_attr_password, + &iscsi_tpg_auth_attr_authenticate_target, + &iscsi_tpg_auth_attr_userid_mutual, + &iscsi_tpg_auth_attr_password_mutual, NULL, }; @@ -1165,10 +993,10 @@ static struct configfs_attribute *lio_target_tpg_auth_attrs[] = { /* Start items for lio_target_tpg_param_cit */ #define DEF_TPG_PARAM(name) \ -static ssize_t iscsi_tpg_param_show_##name( \ - struct se_portal_group *se_tpg, \ - char *page) \ +static ssize_t iscsi_tpg_param_##name##_show(struct config_item *item, \ + char *page) \ { \ + struct se_portal_group *se_tpg = param_to_tpg(item); \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ struct iscsi_param *param; \ @@ -1188,11 +1016,10 @@ static ssize_t iscsi_tpg_param_show_##name( \ iscsit_put_tpg(tpg); \ return rb; \ } \ -static ssize_t iscsi_tpg_param_store_##name( \ - struct se_portal_group *se_tpg, \ - const char *page, \ - size_t count) \ +static ssize_t iscsi_tpg_param_##name##_store(struct config_item *item, \ + const char *page, size_t count) \ { \ + struct se_portal_group *se_tpg = param_to_tpg(item); \ struct iscsi_portal_group *tpg = container_of(se_tpg, \ struct iscsi_portal_group, tpg_se_tpg); \ char *buf; \ @@ -1220,96 +1047,54 @@ static ssize_t iscsi_tpg_param_store_##name( \ out: \ kfree(buf); \ iscsit_put_tpg(tpg); \ - return -EINVAL; \ -} - -#define TPG_PARAM_ATTR(_name, _mode) TF_TPG_PARAM_ATTR(iscsi, _name, _mode); + return -EINVAL; \ +} \ +CONFIGFS_ATTR(iscsi_tpg_param_, name) DEF_TPG_PARAM(AuthMethod); -TPG_PARAM_ATTR(AuthMethod, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(HeaderDigest); -TPG_PARAM_ATTR(HeaderDigest, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(DataDigest); -TPG_PARAM_ATTR(DataDigest, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(MaxConnections); -TPG_PARAM_ATTR(MaxConnections, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(TargetAlias); -TPG_PARAM_ATTR(TargetAlias, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(InitialR2T); -TPG_PARAM_ATTR(InitialR2T, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(ImmediateData); -TPG_PARAM_ATTR(ImmediateData, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(MaxRecvDataSegmentLength); -TPG_PARAM_ATTR(MaxRecvDataSegmentLength, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(MaxXmitDataSegmentLength); -TPG_PARAM_ATTR(MaxXmitDataSegmentLength, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(MaxBurstLength); -TPG_PARAM_ATTR(MaxBurstLength, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(FirstBurstLength); -TPG_PARAM_ATTR(FirstBurstLength, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(DefaultTime2Wait); -TPG_PARAM_ATTR(DefaultTime2Wait, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(DefaultTime2Retain); -TPG_PARAM_ATTR(DefaultTime2Retain, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(MaxOutstandingR2T); -TPG_PARAM_ATTR(MaxOutstandingR2T, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(DataPDUInOrder); -TPG_PARAM_ATTR(DataPDUInOrder, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(DataSequenceInOrder); -TPG_PARAM_ATTR(DataSequenceInOrder, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(ErrorRecoveryLevel); -TPG_PARAM_ATTR(ErrorRecoveryLevel, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(IFMarker); -TPG_PARAM_ATTR(IFMarker, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(OFMarker); -TPG_PARAM_ATTR(OFMarker, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(IFMarkInt); -TPG_PARAM_ATTR(IFMarkInt, S_IRUGO | S_IWUSR); - DEF_TPG_PARAM(OFMarkInt); -TPG_PARAM_ATTR(OFMarkInt, S_IRUGO | S_IWUSR); static struct configfs_attribute *lio_target_tpg_param_attrs[] = { - &iscsi_tpg_param_AuthMethod.attr, - &iscsi_tpg_param_HeaderDigest.attr, - &iscsi_tpg_param_DataDigest.attr, - &iscsi_tpg_param_MaxConnections.attr, - &iscsi_tpg_param_TargetAlias.attr, - &iscsi_tpg_param_InitialR2T.attr, - &iscsi_tpg_param_ImmediateData.attr, - &iscsi_tpg_param_MaxRecvDataSegmentLength.attr, - &iscsi_tpg_param_MaxXmitDataSegmentLength.attr, - &iscsi_tpg_param_MaxBurstLength.attr, - &iscsi_tpg_param_FirstBurstLength.attr, - &iscsi_tpg_param_DefaultTime2Wait.attr, - &iscsi_tpg_param_DefaultTime2Retain.attr, - &iscsi_tpg_param_MaxOutstandingR2T.attr, - &iscsi_tpg_param_DataPDUInOrder.attr, - &iscsi_tpg_param_DataSequenceInOrder.attr, - &iscsi_tpg_param_ErrorRecoveryLevel.attr, - &iscsi_tpg_param_IFMarker.attr, - &iscsi_tpg_param_OFMarker.attr, - &iscsi_tpg_param_IFMarkInt.attr, - &iscsi_tpg_param_OFMarkInt.attr, + &iscsi_tpg_param_attr_AuthMethod, + &iscsi_tpg_param_attr_HeaderDigest, + &iscsi_tpg_param_attr_DataDigest, + &iscsi_tpg_param_attr_MaxConnections, + &iscsi_tpg_param_attr_TargetAlias, + &iscsi_tpg_param_attr_InitialR2T, + &iscsi_tpg_param_attr_ImmediateData, + &iscsi_tpg_param_attr_MaxRecvDataSegmentLength, + &iscsi_tpg_param_attr_MaxXmitDataSegmentLength, + &iscsi_tpg_param_attr_MaxBurstLength, + &iscsi_tpg_param_attr_FirstBurstLength, + &iscsi_tpg_param_attr_DefaultTime2Wait, + &iscsi_tpg_param_attr_DefaultTime2Retain, + &iscsi_tpg_param_attr_MaxOutstandingR2T, + &iscsi_tpg_param_attr_DataPDUInOrder, + &iscsi_tpg_param_attr_DataSequenceInOrder, + &iscsi_tpg_param_attr_ErrorRecoveryLevel, + &iscsi_tpg_param_attr_IFMarker, + &iscsi_tpg_param_attr_OFMarker, + &iscsi_tpg_param_attr_IFMarkInt, + &iscsi_tpg_param_attr_OFMarkInt, NULL, }; @@ -1317,10 +1102,9 @@ static struct configfs_attribute *lio_target_tpg_param_attrs[] = { /* Start items for lio_target_tpg_cit */ -static ssize_t lio_target_tpg_show_enable( - struct se_portal_group *se_tpg, - char *page) +static ssize_t lio_target_tpg_enable_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); ssize_t len; @@ -1333,11 +1117,10 @@ static ssize_t lio_target_tpg_show_enable( return len; } -static ssize_t lio_target_tpg_store_enable( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t lio_target_tpg_enable_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct iscsi_portal_group *tpg = container_of(se_tpg, struct iscsi_portal_group, tpg_se_tpg); u32 op; @@ -1375,20 +1158,19 @@ out: return -EINVAL; } -TF_TPG_BASE_ATTR(lio_target, enable, S_IRUGO | S_IWUSR); -static ssize_t lio_target_tpg_show_dynamic_sessions( - struct se_portal_group *se_tpg, - char *page) +static ssize_t lio_target_tpg_dynamic_sessions_show(struct config_item *item, + char *page) { - return target_show_dynamic_sessions(se_tpg, page); + return target_show_dynamic_sessions(to_tpg(item), page); } -TF_TPG_BASE_ATTR_RO(lio_target, dynamic_sessions); +CONFIGFS_ATTR(lio_target_tpg_, enable); +CONFIGFS_ATTR_RO(lio_target_tpg_, dynamic_sessions); static struct configfs_attribute *lio_target_tpg_attrs[] = { - &lio_target_tpg_enable.attr, - &lio_target_tpg_dynamic_sessions.attr, + &lio_target_tpg_attr_enable, + &lio_target_tpg_attr_dynamic_sessions, NULL, }; @@ -1463,17 +1245,16 @@ static void lio_target_tiqn_deltpg(struct se_portal_group *se_tpg) /* Start LIO-Target TIQN struct contig_item lio_target_cit */ -static ssize_t lio_target_wwn_show_attr_lio_version( - struct target_fabric_configfs *tf, - char *page) +static ssize_t lio_target_wwn_lio_version_show(struct config_item *item, + char *page) { return sprintf(page, "Datera Inc. iSCSI Target "ISCSIT_VERSION"\n"); } -TF_WWN_ATTR_RO(lio_target, lio_version); +CONFIGFS_ATTR_RO(lio_target_wwn_, lio_version); static struct configfs_attribute *lio_target_wwn_attrs[] = { - &lio_target_wwn_lio_version.attr, + &lio_target_wwn_attr_lio_version, NULL, }; @@ -1552,77 +1333,47 @@ static void lio_target_call_coredeltiqn( #define DEF_DISC_AUTH_STR(name, flags) \ __DEF_NACL_AUTH_STR(disc, name, flags) \ -static ssize_t iscsi_disc_show_##name( \ - struct target_fabric_configfs *tf, \ - char *page) \ +static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \ { \ - return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ + return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl,\ page); \ } \ -static ssize_t iscsi_disc_store_##name( \ - struct target_fabric_configfs *tf, \ - const char *page, \ - size_t count) \ +static ssize_t iscsi_disc_##name##_store(struct config_item *item, \ + const char *page, size_t count) \ { \ - return __iscsi_disc_store_##name(&iscsit_global->discovery_acl, \ + return __iscsi_disc_##name##_store(&iscsit_global->discovery_acl, \ page, count); \ -} + \ +} \ +CONFIGFS_ATTR(iscsi_disc_, name) + +DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); +DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); +DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); +DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); #define DEF_DISC_AUTH_INT(name) \ __DEF_NACL_AUTH_INT(disc, name) \ -static ssize_t iscsi_disc_show_##name( \ - struct target_fabric_configfs *tf, \ - char *page) \ +static ssize_t iscsi_disc_##name##_show(struct config_item *item, char *page) \ { \ - return __iscsi_disc_show_##name(&iscsit_global->discovery_acl, \ + return __iscsi_disc_##name##_show(&iscsit_global->discovery_acl, \ page); \ -} - -#define DISC_AUTH_ATTR(_name, _mode) TF_DISC_ATTR(iscsi, _name, _mode) -#define DISC_AUTH_ATTR_RO(_name) TF_DISC_ATTR_RO(iscsi, _name) +} \ +CONFIGFS_ATTR_RO(iscsi_disc_, name) -/* - * One-way authentication userid - */ -DEF_DISC_AUTH_STR(userid, NAF_USERID_SET); -DISC_AUTH_ATTR(userid, S_IRUGO | S_IWUSR); -/* - * One-way authentication password - */ -DEF_DISC_AUTH_STR(password, NAF_PASSWORD_SET); -DISC_AUTH_ATTR(password, S_IRUGO | S_IWUSR); -/* - * Enforce mutual authentication - */ DEF_DISC_AUTH_INT(authenticate_target); -DISC_AUTH_ATTR_RO(authenticate_target); -/* - * Mutual authentication userid - */ -DEF_DISC_AUTH_STR(userid_mutual, NAF_USERID_IN_SET); -DISC_AUTH_ATTR(userid_mutual, S_IRUGO | S_IWUSR); -/* - * Mutual authentication password - */ -DEF_DISC_AUTH_STR(password_mutual, NAF_PASSWORD_IN_SET); -DISC_AUTH_ATTR(password_mutual, S_IRUGO | S_IWUSR); -/* - * enforce_discovery_auth - */ -static ssize_t iscsi_disc_show_enforce_discovery_auth( - struct target_fabric_configfs *tf, - char *page) + +static ssize_t iscsi_disc_enforce_discovery_auth_show(struct config_item *item, + char *page) { struct iscsi_node_auth *discovery_auth = &iscsit_global->discovery_acl.node_auth; return sprintf(page, "%d\n", discovery_auth->enforce_discovery_auth); } -static ssize_t iscsi_disc_store_enforce_discovery_auth( - struct target_fabric_configfs *tf, - const char *page, - size_t count) +static ssize_t iscsi_disc_enforce_discovery_auth_store(struct config_item *item, + const char *page, size_t count) { struct iscsi_param *param; struct iscsi_portal_group *discovery_tpg = iscsit_global->discovery_tpg; @@ -1677,15 +1428,15 @@ static ssize_t iscsi_disc_store_enforce_discovery_auth( return count; } -DISC_AUTH_ATTR(enforce_discovery_auth, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(iscsi_disc_, enforce_discovery_auth); static struct configfs_attribute *lio_target_discovery_auth_attrs[] = { - &iscsi_disc_userid.attr, - &iscsi_disc_password.attr, - &iscsi_disc_authenticate_target.attr, - &iscsi_disc_userid_mutual.attr, - &iscsi_disc_password_mutual.attr, - &iscsi_disc_enforce_discovery_auth.attr, + &iscsi_disc_attr_userid, + &iscsi_disc_attr_password, + &iscsi_disc_attr_authenticate_target, + &iscsi_disc_attr_userid_mutual, + &iscsi_disc_attr_password_mutual, + &iscsi_disc_attr_enforce_discovery_auth, NULL, }; diff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c index 9dd94ff0b62c..411cb266a47d 100644 --- a/drivers/target/iscsi/iscsi_target_stat.c +++ b/drivers/target/iscsi/iscsi_target_stat.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include "iscsi_target_parameters.h" @@ -50,76 +49,56 @@ /* * Instance Attributes Table */ -CONFIGFS_EATTR_STRUCT(iscsi_stat_instance, iscsi_wwn_stat_grps); -#define ISCSI_STAT_INSTANCE_ATTR(_name, _mode) \ -static struct iscsi_stat_instance_attribute \ - iscsi_stat_instance_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_instance_show_attr_##_name, \ - iscsi_stat_instance_store_attr_##_name); - -#define ISCSI_STAT_INSTANCE_ATTR_RO(_name) \ -static struct iscsi_stat_instance_attribute \ - iscsi_stat_instance_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_instance_show_attr_##_name); - -static ssize_t iscsi_stat_instance_show_attr_inst( - struct iscsi_wwn_stat_grps *igrps, char *page) -{ - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); +static struct iscsi_tiqn *iscsi_instance_tiqn(struct config_item *item) +{ + struct iscsi_wwn_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_wwn_stat_grps, iscsi_instance_group); + return container_of(igrps, struct iscsi_tiqn, tiqn_stat_grps); +} - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); +static ssize_t iscsi_stat_instance_inst_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_instance_tiqn(item)->tiqn_index); } -ISCSI_STAT_INSTANCE_ATTR_RO(inst); -static ssize_t iscsi_stat_instance_show_attr_min_ver( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_min_ver_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_DRAFT20_VERSION); } -ISCSI_STAT_INSTANCE_ATTR_RO(min_ver); -static ssize_t iscsi_stat_instance_show_attr_max_ver( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_max_ver_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_DRAFT20_VERSION); } -ISCSI_STAT_INSTANCE_ATTR_RO(max_ver); -static ssize_t iscsi_stat_instance_show_attr_portals( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_portals_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_num_tpg_nps); + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_instance_tiqn(item)->tiqn_num_tpg_nps); } -ISCSI_STAT_INSTANCE_ATTR_RO(portals); -static ssize_t iscsi_stat_instance_show_attr_nodes( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_nodes_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_INST_NUM_NODES); } -ISCSI_STAT_INSTANCE_ATTR_RO(nodes); -static ssize_t iscsi_stat_instance_show_attr_sessions( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_sessions_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_nsessions); + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_instance_tiqn(item)->tiqn_nsessions); } -ISCSI_STAT_INSTANCE_ATTR_RO(sessions); -static ssize_t iscsi_stat_instance_show_attr_fail_sess( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_fail_sess_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_instance_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; u32 sess_err_count; @@ -131,88 +110,84 @@ static ssize_t iscsi_stat_instance_show_attr_fail_sess( return snprintf(page, PAGE_SIZE, "%u\n", sess_err_count); } -ISCSI_STAT_INSTANCE_ATTR_RO(fail_sess); -static ssize_t iscsi_stat_instance_show_attr_fail_type( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_fail_type_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_instance_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; return snprintf(page, PAGE_SIZE, "%u\n", sess_err->last_sess_failure_type); } -ISCSI_STAT_INSTANCE_ATTR_RO(fail_type); -static ssize_t iscsi_stat_instance_show_attr_fail_rem_name( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_fail_rem_name_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_instance_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; return snprintf(page, PAGE_SIZE, "%s\n", sess_err->last_sess_fail_rem_name[0] ? sess_err->last_sess_fail_rem_name : NONE); } -ISCSI_STAT_INSTANCE_ATTR_RO(fail_rem_name); -static ssize_t iscsi_stat_instance_show_attr_disc_time( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_disc_time_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_DISCONTINUITY_TIME); } -ISCSI_STAT_INSTANCE_ATTR_RO(disc_time); -static ssize_t iscsi_stat_instance_show_attr_description( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_description_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%s\n", ISCSI_INST_DESCR); } -ISCSI_STAT_INSTANCE_ATTR_RO(description); -static ssize_t iscsi_stat_instance_show_attr_vendor( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_vendor_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "Datera, Inc. iSCSI-Target\n"); } -ISCSI_STAT_INSTANCE_ATTR_RO(vendor); -static ssize_t iscsi_stat_instance_show_attr_version( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_instance_version_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%s\n", ISCSIT_VERSION); } -ISCSI_STAT_INSTANCE_ATTR_RO(version); -CONFIGFS_EATTR_OPS(iscsi_stat_instance, iscsi_wwn_stat_grps, - iscsi_instance_group); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, min_ver); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, max_ver); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, portals); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, nodes); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, sessions); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, fail_sess); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, fail_type); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, fail_rem_name); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, disc_time); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, description); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, vendor); +CONFIGFS_ATTR_RO(iscsi_stat_instance_, version); static struct configfs_attribute *iscsi_stat_instance_attrs[] = { - &iscsi_stat_instance_inst.attr, - &iscsi_stat_instance_min_ver.attr, - &iscsi_stat_instance_max_ver.attr, - &iscsi_stat_instance_portals.attr, - &iscsi_stat_instance_nodes.attr, - &iscsi_stat_instance_sessions.attr, - &iscsi_stat_instance_fail_sess.attr, - &iscsi_stat_instance_fail_type.attr, - &iscsi_stat_instance_fail_rem_name.attr, - &iscsi_stat_instance_disc_time.attr, - &iscsi_stat_instance_description.attr, - &iscsi_stat_instance_vendor.attr, - &iscsi_stat_instance_version.attr, + &iscsi_stat_instance_attr_inst, + &iscsi_stat_instance_attr_min_ver, + &iscsi_stat_instance_attr_max_ver, + &iscsi_stat_instance_attr_portals, + &iscsi_stat_instance_attr_nodes, + &iscsi_stat_instance_attr_sessions, + &iscsi_stat_instance_attr_fail_sess, + &iscsi_stat_instance_attr_fail_type, + &iscsi_stat_instance_attr_fail_rem_name, + &iscsi_stat_instance_attr_disc_time, + &iscsi_stat_instance_attr_description, + &iscsi_stat_instance_attr_vendor, + &iscsi_stat_instance_attr_version, NULL, }; -static struct configfs_item_operations iscsi_stat_instance_item_ops = { - .show_attribute = iscsi_stat_instance_attr_show, - .store_attribute = iscsi_stat_instance_attr_store, -}; - struct config_item_type iscsi_stat_instance_cit = { - .ct_item_ops = &iscsi_stat_instance_item_ops, .ct_attrs = iscsi_stat_instance_attrs, .ct_owner = THIS_MODULE, }; @@ -220,81 +195,61 @@ struct config_item_type iscsi_stat_instance_cit = { /* * Instance Session Failure Stats Table */ -CONFIGFS_EATTR_STRUCT(iscsi_stat_sess_err, iscsi_wwn_stat_grps); -#define ISCSI_STAT_SESS_ERR_ATTR(_name, _mode) \ -static struct iscsi_stat_sess_err_attribute \ - iscsi_stat_sess_err_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_sess_err_show_attr_##_name, \ - iscsi_stat_sess_err_store_attr_##_name); - -#define ISCSI_STAT_SESS_ERR_ATTR_RO(_name) \ -static struct iscsi_stat_sess_err_attribute \ - iscsi_stat_sess_err_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_sess_err_show_attr_##_name); - -static ssize_t iscsi_stat_sess_err_show_attr_inst( - struct iscsi_wwn_stat_grps *igrps, char *page) -{ - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); +static struct iscsi_tiqn *iscsi_sess_err_tiqn(struct config_item *item) +{ + struct iscsi_wwn_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_wwn_stat_grps, iscsi_sess_err_group); + return container_of(igrps, struct iscsi_tiqn, tiqn_stat_grps); +} - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); +static ssize_t iscsi_stat_sess_err_inst_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_sess_err_tiqn(item)->tiqn_index); } -ISCSI_STAT_SESS_ERR_ATTR_RO(inst); -static ssize_t iscsi_stat_sess_err_show_attr_digest_errors( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_err_digest_errors_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_sess_err_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; return snprintf(page, PAGE_SIZE, "%u\n", sess_err->digest_errors); } -ISCSI_STAT_SESS_ERR_ATTR_RO(digest_errors); -static ssize_t iscsi_stat_sess_err_show_attr_cxn_errors( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_err_cxn_errors_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_sess_err_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; return snprintf(page, PAGE_SIZE, "%u\n", sess_err->cxn_timeout_errors); } -ISCSI_STAT_SESS_ERR_ATTR_RO(cxn_errors); -static ssize_t iscsi_stat_sess_err_show_attr_format_errors( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_err_format_errors_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_sess_err_tiqn(item); struct iscsi_sess_err_stats *sess_err = &tiqn->sess_err_stats; return snprintf(page, PAGE_SIZE, "%u\n", sess_err->pdu_format_errors); } -ISCSI_STAT_SESS_ERR_ATTR_RO(format_errors); -CONFIGFS_EATTR_OPS(iscsi_stat_sess_err, iscsi_wwn_stat_grps, - iscsi_sess_err_group); +CONFIGFS_ATTR_RO(iscsi_stat_sess_err_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_sess_err_, digest_errors); +CONFIGFS_ATTR_RO(iscsi_stat_sess_err_, cxn_errors); +CONFIGFS_ATTR_RO(iscsi_stat_sess_err_, format_errors); static struct configfs_attribute *iscsi_stat_sess_err_attrs[] = { - &iscsi_stat_sess_err_inst.attr, - &iscsi_stat_sess_err_digest_errors.attr, - &iscsi_stat_sess_err_cxn_errors.attr, - &iscsi_stat_sess_err_format_errors.attr, + &iscsi_stat_sess_err_attr_inst, + &iscsi_stat_sess_err_attr_digest_errors, + &iscsi_stat_sess_err_attr_cxn_errors, + &iscsi_stat_sess_err_attr_format_errors, NULL, }; -static struct configfs_item_operations iscsi_stat_sess_err_item_ops = { - .show_attribute = iscsi_stat_sess_err_attr_show, - .store_attribute = iscsi_stat_sess_err_attr_store, -}; - struct config_item_type iscsi_stat_sess_err_cit = { - .ct_item_ops = &iscsi_stat_sess_err_item_ops, .ct_attrs = iscsi_stat_sess_err_attrs, .ct_owner = THIS_MODULE, }; @@ -302,42 +257,30 @@ struct config_item_type iscsi_stat_sess_err_cit = { /* * Target Attributes Table */ -CONFIGFS_EATTR_STRUCT(iscsi_stat_tgt_attr, iscsi_wwn_stat_grps); -#define ISCSI_STAT_TGT_ATTR(_name, _mode) \ -static struct iscsi_stat_tgt_attr_attribute \ - iscsi_stat_tgt_attr_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_tgt-attr_show_attr_##_name, \ - iscsi_stat_tgt_attr_store_attr_##_name); - -#define ISCSI_STAT_TGT_ATTR_RO(_name) \ -static struct iscsi_stat_tgt_attr_attribute \ - iscsi_stat_tgt_attr_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_tgt_attr_show_attr_##_name); - -static ssize_t iscsi_stat_tgt_attr_show_attr_inst( - struct iscsi_wwn_stat_grps *igrps, char *page) -{ - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); +static struct iscsi_tiqn *iscsi_tgt_attr_tiqn(struct config_item *item) +{ + struct iscsi_wwn_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_wwn_stat_grps, iscsi_tgt_attr_group); + return container_of(igrps, struct iscsi_tiqn, tiqn_stat_grps); +} - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); +static ssize_t iscsi_stat_tgt_attr_inst_show(struct config_item *item, + char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_tgt_attr_tiqn(item)->tiqn_index); } -ISCSI_STAT_TGT_ATTR_RO(inst); -static ssize_t iscsi_stat_tgt_attr_show_attr_indx( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_indx_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_NODE_INDEX); } -ISCSI_STAT_TGT_ATTR_RO(indx); -static ssize_t iscsi_stat_tgt_attr_show_attr_login_fails( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_login_fails_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; u32 fail_count; @@ -349,13 +292,11 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_login_fails( return snprintf(page, PAGE_SIZE, "%u\n", fail_count); } -ISCSI_STAT_TGT_ATTR_RO(login_fails); -static ssize_t iscsi_stat_tgt_attr_show_attr_last_fail_time( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_last_fail_time_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; u32 last_fail_time; @@ -367,13 +308,11 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_last_fail_time( return snprintf(page, PAGE_SIZE, "%u\n", last_fail_time); } -ISCSI_STAT_TGT_ATTR_RO(last_fail_time); -static ssize_t iscsi_stat_tgt_attr_show_attr_last_fail_type( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_last_fail_type_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; u32 last_fail_type; @@ -383,13 +322,11 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_last_fail_type( return snprintf(page, PAGE_SIZE, "%u\n", last_fail_type); } -ISCSI_STAT_TGT_ATTR_RO(last_fail_type); -static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_name( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_fail_intr_name_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; unsigned char buf[224]; @@ -400,13 +337,11 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_name( return snprintf(page, PAGE_SIZE, "%s\n", buf); } -ISCSI_STAT_TGT_ATTR_RO(fail_intr_name); -static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr_type( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_fail_intr_addr_type_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; int ret; @@ -419,13 +354,11 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr_type( return ret; } -ISCSI_STAT_TGT_ATTR_RO(fail_intr_addr_type); -static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_tgt_attr_fail_intr_addr_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_tgt_attr_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; int ret; @@ -435,30 +368,29 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr( return ret; } -ISCSI_STAT_TGT_ATTR_RO(fail_intr_addr); -CONFIGFS_EATTR_OPS(iscsi_stat_tgt_attr, iscsi_wwn_stat_grps, - iscsi_tgt_attr_group); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, indx); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, login_fails); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, last_fail_time); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, last_fail_type); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, fail_intr_name); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, fail_intr_addr_type); +CONFIGFS_ATTR_RO(iscsi_stat_tgt_attr_, fail_intr_addr); static struct configfs_attribute *iscsi_stat_tgt_attr_attrs[] = { - &iscsi_stat_tgt_attr_inst.attr, - &iscsi_stat_tgt_attr_indx.attr, - &iscsi_stat_tgt_attr_login_fails.attr, - &iscsi_stat_tgt_attr_last_fail_time.attr, - &iscsi_stat_tgt_attr_last_fail_type.attr, - &iscsi_stat_tgt_attr_fail_intr_name.attr, - &iscsi_stat_tgt_attr_fail_intr_addr_type.attr, - &iscsi_stat_tgt_attr_fail_intr_addr.attr, + &iscsi_stat_tgt_attr_attr_inst, + &iscsi_stat_tgt_attr_attr_indx, + &iscsi_stat_tgt_attr_attr_login_fails, + &iscsi_stat_tgt_attr_attr_last_fail_time, + &iscsi_stat_tgt_attr_attr_last_fail_type, + &iscsi_stat_tgt_attr_attr_fail_intr_name, + &iscsi_stat_tgt_attr_attr_fail_intr_addr_type, + &iscsi_stat_tgt_attr_attr_fail_intr_addr, NULL, }; -static struct configfs_item_operations iscsi_stat_tgt_attr_item_ops = { - .show_attribute = iscsi_stat_tgt_attr_attr_show, - .store_attribute = iscsi_stat_tgt_attr_attr_store, -}; - struct config_item_type iscsi_stat_tgt_attr_cit = { - .ct_item_ops = &iscsi_stat_tgt_attr_item_ops, .ct_attrs = iscsi_stat_tgt_attr_attrs, .ct_owner = THIS_MODULE, }; @@ -466,42 +398,29 @@ struct config_item_type iscsi_stat_tgt_attr_cit = { /* * Target Login Stats Table */ -CONFIGFS_EATTR_STRUCT(iscsi_stat_login, iscsi_wwn_stat_grps); -#define ISCSI_STAT_LOGIN(_name, _mode) \ -static struct iscsi_stat_login_attribute \ - iscsi_stat_login_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_login_show_attr_##_name, \ - iscsi_stat_login_store_attr_##_name); - -#define ISCSI_STAT_LOGIN_RO(_name) \ -static struct iscsi_stat_login_attribute \ - iscsi_stat_login_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_login_show_attr_##_name); - -static ssize_t iscsi_stat_login_show_attr_inst( - struct iscsi_wwn_stat_grps *igrps, char *page) -{ - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); +static struct iscsi_tiqn *iscsi_login_stat_tiqn(struct config_item *item) +{ + struct iscsi_wwn_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_wwn_stat_grps, iscsi_login_stats_group); + return container_of(igrps, struct iscsi_tiqn, tiqn_stat_grps); +} - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); +static ssize_t iscsi_stat_login_inst_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_login_stat_tiqn(item)->tiqn_index); } -ISCSI_STAT_LOGIN_RO(inst); -static ssize_t iscsi_stat_login_show_attr_indx( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_indx_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_NODE_INDEX); } -ISCSI_STAT_LOGIN_RO(indx); -static ssize_t iscsi_stat_login_show_attr_accepts( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_accepts_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -511,13 +430,11 @@ static ssize_t iscsi_stat_login_show_attr_accepts( return ret; } -ISCSI_STAT_LOGIN_RO(accepts); -static ssize_t iscsi_stat_login_show_attr_other_fails( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_other_fails_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -527,13 +444,11 @@ static ssize_t iscsi_stat_login_show_attr_other_fails( return ret; } -ISCSI_STAT_LOGIN_RO(other_fails); -static ssize_t iscsi_stat_login_show_attr_redirects( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_redirects_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -543,13 +458,11 @@ static ssize_t iscsi_stat_login_show_attr_redirects( return ret; } -ISCSI_STAT_LOGIN_RO(redirects); -static ssize_t iscsi_stat_login_show_attr_authorize_fails( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_authorize_fails_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -559,13 +472,11 @@ static ssize_t iscsi_stat_login_show_attr_authorize_fails( return ret; } -ISCSI_STAT_LOGIN_RO(authorize_fails); -static ssize_t iscsi_stat_login_show_attr_authenticate_fails( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_authenticate_fails_show( + struct config_item *item, char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -575,13 +486,11 @@ static ssize_t iscsi_stat_login_show_attr_authenticate_fails( return ret; } -ISCSI_STAT_LOGIN_RO(authenticate_fails); -static ssize_t iscsi_stat_login_show_attr_negotiate_fails( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_login_negotiate_fails_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_login_stat_tiqn(item); struct iscsi_login_stats *lstat = &tiqn->login_stats; ssize_t ret; @@ -591,30 +500,29 @@ static ssize_t iscsi_stat_login_show_attr_negotiate_fails( return ret; } -ISCSI_STAT_LOGIN_RO(negotiate_fails); -CONFIGFS_EATTR_OPS(iscsi_stat_login, iscsi_wwn_stat_grps, - iscsi_login_stats_group); +CONFIGFS_ATTR_RO(iscsi_stat_login_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_login_, indx); +CONFIGFS_ATTR_RO(iscsi_stat_login_, accepts); +CONFIGFS_ATTR_RO(iscsi_stat_login_, other_fails); +CONFIGFS_ATTR_RO(iscsi_stat_login_, redirects); +CONFIGFS_ATTR_RO(iscsi_stat_login_, authorize_fails); +CONFIGFS_ATTR_RO(iscsi_stat_login_, authenticate_fails); +CONFIGFS_ATTR_RO(iscsi_stat_login_, negotiate_fails); static struct configfs_attribute *iscsi_stat_login_stats_attrs[] = { - &iscsi_stat_login_inst.attr, - &iscsi_stat_login_indx.attr, - &iscsi_stat_login_accepts.attr, - &iscsi_stat_login_other_fails.attr, - &iscsi_stat_login_redirects.attr, - &iscsi_stat_login_authorize_fails.attr, - &iscsi_stat_login_authenticate_fails.attr, - &iscsi_stat_login_negotiate_fails.attr, + &iscsi_stat_login_attr_inst, + &iscsi_stat_login_attr_indx, + &iscsi_stat_login_attr_accepts, + &iscsi_stat_login_attr_other_fails, + &iscsi_stat_login_attr_redirects, + &iscsi_stat_login_attr_authorize_fails, + &iscsi_stat_login_attr_authenticate_fails, + &iscsi_stat_login_attr_negotiate_fails, NULL, }; -static struct configfs_item_operations iscsi_stat_login_stats_item_ops = { - .show_attribute = iscsi_stat_login_attr_show, - .store_attribute = iscsi_stat_login_attr_store, -}; - struct config_item_type iscsi_stat_login_cit = { - .ct_item_ops = &iscsi_stat_login_stats_item_ops, .ct_attrs = iscsi_stat_login_stats_attrs, .ct_owner = THIS_MODULE, }; @@ -622,78 +530,56 @@ struct config_item_type iscsi_stat_login_cit = { /* * Target Logout Stats Table */ - -CONFIGFS_EATTR_STRUCT(iscsi_stat_logout, iscsi_wwn_stat_grps); -#define ISCSI_STAT_LOGOUT(_name, _mode) \ -static struct iscsi_stat_logout_attribute \ - iscsi_stat_logout_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_logout_show_attr_##_name, \ - iscsi_stat_logout_store_attr_##_name); - -#define ISCSI_STAT_LOGOUT_RO(_name) \ -static struct iscsi_stat_logout_attribute \ - iscsi_stat_logout_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_logout_show_attr_##_name); - -static ssize_t iscsi_stat_logout_show_attr_inst( - struct iscsi_wwn_stat_grps *igrps, char *page) +static struct iscsi_tiqn *iscsi_logout_stat_tiqn(struct config_item *item) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_wwn_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_wwn_stat_grps, iscsi_logout_stats_group); + return container_of(igrps, struct iscsi_tiqn, tiqn_stat_grps); +} - return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); +static ssize_t iscsi_stat_logout_inst_show(struct config_item *item, char *page) +{ + return snprintf(page, PAGE_SIZE, "%u\n", + iscsi_logout_stat_tiqn(item)->tiqn_index); } -ISCSI_STAT_LOGOUT_RO(inst); -static ssize_t iscsi_stat_logout_show_attr_indx( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_logout_indx_show(struct config_item *item, char *page) { return snprintf(page, PAGE_SIZE, "%u\n", ISCSI_NODE_INDEX); } -ISCSI_STAT_LOGOUT_RO(indx); -static ssize_t iscsi_stat_logout_show_attr_normal_logouts( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_logout_normal_logouts_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_logout_stat_tiqn(item); struct iscsi_logout_stats *lstats = &tiqn->logout_stats; return snprintf(page, PAGE_SIZE, "%u\n", lstats->normal_logouts); } -ISCSI_STAT_LOGOUT_RO(normal_logouts); -static ssize_t iscsi_stat_logout_show_attr_abnormal_logouts( - struct iscsi_wwn_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_logout_abnormal_logouts_show(struct config_item *item, + char *page) { - struct iscsi_tiqn *tiqn = container_of(igrps, - struct iscsi_tiqn, tiqn_stat_grps); + struct iscsi_tiqn *tiqn = iscsi_logout_stat_tiqn(item); struct iscsi_logout_stats *lstats = &tiqn->logout_stats; return snprintf(page, PAGE_SIZE, "%u\n", lstats->abnormal_logouts); } -ISCSI_STAT_LOGOUT_RO(abnormal_logouts); -CONFIGFS_EATTR_OPS(iscsi_stat_logout, iscsi_wwn_stat_grps, - iscsi_logout_stats_group); +CONFIGFS_ATTR_RO(iscsi_stat_logout_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_logout_, indx); +CONFIGFS_ATTR_RO(iscsi_stat_logout_, normal_logouts); +CONFIGFS_ATTR_RO(iscsi_stat_logout_, abnormal_logouts); static struct configfs_attribute *iscsi_stat_logout_stats_attrs[] = { - &iscsi_stat_logout_inst.attr, - &iscsi_stat_logout_indx.attr, - &iscsi_stat_logout_normal_logouts.attr, - &iscsi_stat_logout_abnormal_logouts.attr, + &iscsi_stat_logout_attr_inst, + &iscsi_stat_logout_attr_indx, + &iscsi_stat_logout_attr_normal_logouts, + &iscsi_stat_logout_attr_abnormal_logouts, NULL, }; -static struct configfs_item_operations iscsi_stat_logout_stats_item_ops = { - .show_attribute = iscsi_stat_logout_attr_show, - .store_attribute = iscsi_stat_logout_attr_store, -}; - struct config_item_type iscsi_stat_logout_cit = { - .ct_item_ops = &iscsi_stat_logout_stats_item_ops, .ct_attrs = iscsi_stat_logout_stats_attrs, .ct_owner = THIS_MODULE, }; @@ -701,39 +587,26 @@ struct config_item_type iscsi_stat_logout_cit = { /* * Session Stats Table */ +static struct iscsi_node_acl *iscsi_stat_nacl(struct config_item *item) +{ + struct iscsi_node_stat_grps *igrps = container_of(to_config_group(item), + struct iscsi_node_stat_grps, iscsi_sess_stats_group); + return container_of(igrps, struct iscsi_node_acl, node_stat_grps); +} -CONFIGFS_EATTR_STRUCT(iscsi_stat_sess, iscsi_node_stat_grps); -#define ISCSI_STAT_SESS(_name, _mode) \ -static struct iscsi_stat_sess_attribute \ - iscsi_stat_sess_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - iscsi_stat_sess_show_attr_##_name, \ - iscsi_stat_sess_store_attr_##_name); - -#define ISCSI_STAT_SESS_RO(_name) \ -static struct iscsi_stat_sess_attribute \ - iscsi_stat_sess_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - iscsi_stat_sess_show_attr_##_name); - -static ssize_t iscsi_stat_sess_show_attr_inst( - struct iscsi_node_stat_grps *igrps, char *page) -{ - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); +static ssize_t iscsi_stat_sess_inst_show(struct config_item *item, char *page) +{ + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_wwn *wwn = acl->se_node_acl.se_tpg->se_tpg_wwn; struct iscsi_tiqn *tiqn = container_of(wwn, struct iscsi_tiqn, tiqn_wwn); return snprintf(page, PAGE_SIZE, "%u\n", tiqn->tiqn_index); } -ISCSI_STAT_SESS_RO(inst); -static ssize_t iscsi_stat_sess_show_attr_node( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_node_show(struct config_item *item, char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -751,13 +624,10 @@ static ssize_t iscsi_stat_sess_show_attr_node( return ret; } -ISCSI_STAT_SESS_RO(node); -static ssize_t iscsi_stat_sess_show_attr_indx( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_indx_show(struct config_item *item, char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -775,13 +645,11 @@ static ssize_t iscsi_stat_sess_show_attr_indx( return ret; } -ISCSI_STAT_SESS_RO(indx); -static ssize_t iscsi_stat_sess_show_attr_cmd_pdus( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_cmd_pdus_show(struct config_item *item, + char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -799,13 +667,11 @@ static ssize_t iscsi_stat_sess_show_attr_cmd_pdus( return ret; } -ISCSI_STAT_SESS_RO(cmd_pdus); -static ssize_t iscsi_stat_sess_show_attr_rsp_pdus( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_rsp_pdus_show(struct config_item *item, + char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -823,13 +689,11 @@ static ssize_t iscsi_stat_sess_show_attr_rsp_pdus( return ret; } -ISCSI_STAT_SESS_RO(rsp_pdus); -static ssize_t iscsi_stat_sess_show_attr_txdata_octs( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_txdata_octs_show(struct config_item *item, + char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -847,13 +711,11 @@ static ssize_t iscsi_stat_sess_show_attr_txdata_octs( return ret; } -ISCSI_STAT_SESS_RO(txdata_octs); -static ssize_t iscsi_stat_sess_show_attr_rxdata_octs( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_rxdata_octs_show(struct config_item *item, + char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -871,13 +733,11 @@ static ssize_t iscsi_stat_sess_show_attr_rxdata_octs( return ret; } -ISCSI_STAT_SESS_RO(rxdata_octs); -static ssize_t iscsi_stat_sess_show_attr_conn_digest_errors( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_conn_digest_errors_show(struct config_item *item, + char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -895,13 +755,11 @@ static ssize_t iscsi_stat_sess_show_attr_conn_digest_errors( return ret; } -ISCSI_STAT_SESS_RO(conn_digest_errors); -static ssize_t iscsi_stat_sess_show_attr_conn_timeout_errors( - struct iscsi_node_stat_grps *igrps, char *page) +static ssize_t iscsi_stat_sess_conn_timeout_errors_show( + struct config_item *item, char *page) { - struct iscsi_node_acl *acl = container_of(igrps, - struct iscsi_node_acl, node_stat_grps); + struct iscsi_node_acl *acl = iscsi_stat_nacl(item); struct se_node_acl *se_nacl = &acl->se_node_acl; struct iscsi_session *sess; struct se_session *se_sess; @@ -919,31 +777,31 @@ static ssize_t iscsi_stat_sess_show_attr_conn_timeout_errors( return ret; } -ISCSI_STAT_SESS_RO(conn_timeout_errors); -CONFIGFS_EATTR_OPS(iscsi_stat_sess, iscsi_node_stat_grps, - iscsi_sess_stats_group); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, inst); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, node); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, indx); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, cmd_pdus); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, rsp_pdus); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, txdata_octs); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, rxdata_octs); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, conn_digest_errors); +CONFIGFS_ATTR_RO(iscsi_stat_sess_, conn_timeout_errors); static struct configfs_attribute *iscsi_stat_sess_stats_attrs[] = { - &iscsi_stat_sess_inst.attr, - &iscsi_stat_sess_node.attr, - &iscsi_stat_sess_indx.attr, - &iscsi_stat_sess_cmd_pdus.attr, - &iscsi_stat_sess_rsp_pdus.attr, - &iscsi_stat_sess_txdata_octs.attr, - &iscsi_stat_sess_rxdata_octs.attr, - &iscsi_stat_sess_conn_digest_errors.attr, - &iscsi_stat_sess_conn_timeout_errors.attr, + &iscsi_stat_sess_attr_inst, + &iscsi_stat_sess_attr_node, + &iscsi_stat_sess_attr_indx, + &iscsi_stat_sess_attr_cmd_pdus, + &iscsi_stat_sess_attr_rsp_pdus, + &iscsi_stat_sess_attr_txdata_octs, + &iscsi_stat_sess_attr_rxdata_octs, + &iscsi_stat_sess_attr_conn_digest_errors, + &iscsi_stat_sess_attr_conn_timeout_errors, NULL, }; -static struct configfs_item_operations iscsi_stat_sess_stats_item_ops = { - .show_attribute = iscsi_stat_sess_attr_show, - .store_attribute = iscsi_stat_sess_attr_store, -}; - struct config_item_type iscsi_stat_sess_cit = { - .ct_item_ops = &iscsi_stat_sess_stats_item_ops, .ct_attrs = iscsi_stat_sess_stats_attrs, .ct_owner = THIS_MODULE, }; diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 5bc85ffed720..999b6eba52e8 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -34,7 +34,6 @@ #include #include -#include #include "tcm_loop.h" @@ -763,21 +762,20 @@ static void tcm_loop_port_unlink( /* End items for tcm_loop_port_cit */ -static ssize_t tcm_loop_tpg_attrib_show_fabric_prot_type( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_loop_tpg_attrib_fabric_prot_type_show( + struct config_item *item, char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); return sprintf(page, "%d\n", tl_tpg->tl_fabric_prot_type); } -static ssize_t tcm_loop_tpg_attrib_store_fabric_prot_type( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_loop_tpg_attrib_fabric_prot_type_store( + struct config_item *item, const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); unsigned long val; @@ -796,10 +794,10 @@ static ssize_t tcm_loop_tpg_attrib_store_fabric_prot_type( return count; } -TF_TPG_ATTRIB_ATTR(tcm_loop, fabric_prot_type, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(tcm_loop_tpg_attrib_, fabric_prot_type); static struct configfs_attribute *tcm_loop_tpg_attrib_attrs[] = { - &tcm_loop_tpg_attrib_fabric_prot_type.attr, + &tcm_loop_tpg_attrib_attr_fabric_prot_type, NULL, }; @@ -894,10 +892,9 @@ static int tcm_loop_drop_nexus( /* End items for tcm_loop_nexus_cit */ -static ssize_t tcm_loop_tpg_show_nexus( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_loop_tpg_nexus_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); struct tcm_loop_nexus *tl_nexus; @@ -913,11 +910,10 @@ static ssize_t tcm_loop_tpg_show_nexus( return ret; } -static ssize_t tcm_loop_tpg_store_nexus( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_loop_tpg_nexus_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); struct tcm_loop_hba *tl_hba = tl_tpg->tl_hba; @@ -992,12 +988,10 @@ check_newline: return count; } -TF_TPG_BASE_ATTR(tcm_loop, nexus, S_IRUGO | S_IWUSR); - -static ssize_t tcm_loop_tpg_show_transport_status( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_loop_tpg_transport_status_show(struct config_item *item, + char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); const char *status = NULL; @@ -1020,11 +1014,10 @@ static ssize_t tcm_loop_tpg_show_transport_status( return ret; } -static ssize_t tcm_loop_tpg_store_transport_status( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_loop_tpg_transport_status_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct tcm_loop_tpg *tl_tpg = container_of(se_tpg, struct tcm_loop_tpg, tl_se_tpg); @@ -1044,11 +1037,12 @@ static ssize_t tcm_loop_tpg_store_transport_status( return -EINVAL; } -TF_TPG_BASE_ATTR(tcm_loop, transport_status, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(tcm_loop_tpg_, nexus); +CONFIGFS_ATTR(tcm_loop_tpg_, transport_status); static struct configfs_attribute *tcm_loop_tpg_attrs[] = { - &tcm_loop_tpg_nexus.attr, - &tcm_loop_tpg_transport_status.attr, + &tcm_loop_tpg_attr_nexus, + &tcm_loop_tpg_attr_transport_status, NULL, }; @@ -1216,17 +1210,15 @@ static void tcm_loop_drop_scsi_hba( } /* Start items for tcm_loop_cit */ -static ssize_t tcm_loop_wwn_show_attr_version( - struct target_fabric_configfs *tf, - char *page) +static ssize_t tcm_loop_wwn_version_show(struct config_item *item, char *page) { return sprintf(page, "TCM Loopback Fabric module %s\n", TCM_LOOP_VERSION); } -TF_WWN_ATTR_RO(tcm_loop, version); +CONFIGFS_ATTR_RO(tcm_loop_wwn_, version); static struct configfs_attribute *tcm_loop_wwn_attrs[] = { - &tcm_loop_wwn_version.attr, + &tcm_loop_wwn_attr_version, NULL, }; diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c index 0edf320fb685..35f7d31b29d2 100644 --- a/drivers/target/sbp/sbp_target.c +++ b/drivers/target/sbp/sbp_target.c @@ -35,8 +35,6 @@ #include #include #include -#include -#include #include #include "sbp_target.h" @@ -2111,24 +2109,21 @@ static void sbp_drop_tport(struct se_wwn *wwn) kfree(tport); } -static ssize_t sbp_wwn_show_attr_version( - struct target_fabric_configfs *tf, - char *page) +static ssize_t sbp_wwn_version_show(struct config_item *item, char *page) { return sprintf(page, "FireWire SBP fabric module %s\n", SBP_VERSION); } -TF_WWN_ATTR_RO(sbp, version); +CONFIGFS_ATTR_RO(sbp_wwn_, version); static struct configfs_attribute *sbp_wwn_attrs[] = { - &sbp_wwn_version.attr, + &sbp_wwn_attr_version, NULL, }; -static ssize_t sbp_tpg_show_directory_id( - struct se_portal_group *se_tpg, - char *page) +static ssize_t sbp_tpg_directory_id_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; @@ -2138,11 +2133,10 @@ static ssize_t sbp_tpg_show_directory_id( return sprintf(page, "%06x\n", tport->directory_id); } -static ssize_t sbp_tpg_store_directory_id( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t sbp_tpg_directory_id_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; unsigned long val; @@ -2166,20 +2160,18 @@ static ssize_t sbp_tpg_store_directory_id( return count; } -static ssize_t sbp_tpg_show_enable( - struct se_portal_group *se_tpg, - char *page) +static ssize_t sbp_tpg_enable_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; return sprintf(page, "%d\n", tport->enable); } -static ssize_t sbp_tpg_store_enable( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t sbp_tpg_enable_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; unsigned long val; @@ -2219,29 +2211,28 @@ static ssize_t sbp_tpg_store_enable( return count; } -TF_TPG_BASE_ATTR(sbp, directory_id, S_IRUGO | S_IWUSR); -TF_TPG_BASE_ATTR(sbp, enable, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(sbp_tpg_, directory_id); +CONFIGFS_ATTR(sbp_tpg_, enable); static struct configfs_attribute *sbp_tpg_base_attrs[] = { - &sbp_tpg_directory_id.attr, - &sbp_tpg_enable.attr, + &sbp_tpg_attr_directory_id, + &sbp_tpg_attr_enable, NULL, }; -static ssize_t sbp_tpg_attrib_show_mgt_orb_timeout( - struct se_portal_group *se_tpg, +static ssize_t sbp_tpg_attrib_mgt_orb_timeout_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; return sprintf(page, "%d\n", tport->mgt_orb_timeout); } -static ssize_t sbp_tpg_attrib_store_mgt_orb_timeout( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t sbp_tpg_attrib_mgt_orb_timeout_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; unsigned long val; @@ -2264,20 +2255,19 @@ static ssize_t sbp_tpg_attrib_store_mgt_orb_timeout( return count; } -static ssize_t sbp_tpg_attrib_show_max_reconnect_timeout( - struct se_portal_group *se_tpg, +static ssize_t sbp_tpg_attrib_max_reconnect_timeout_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; return sprintf(page, "%d\n", tport->max_reconnect_timeout); } -static ssize_t sbp_tpg_attrib_store_max_reconnect_timeout( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t sbp_tpg_attrib_max_reconnect_timeout_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; unsigned long val; @@ -2300,20 +2290,19 @@ static ssize_t sbp_tpg_attrib_store_max_reconnect_timeout( return count; } -static ssize_t sbp_tpg_attrib_show_max_logins_per_lun( - struct se_portal_group *se_tpg, +static ssize_t sbp_tpg_attrib_max_logins_per_lun_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; return sprintf(page, "%d\n", tport->max_logins_per_lun); } -static ssize_t sbp_tpg_attrib_store_max_logins_per_lun( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t sbp_tpg_attrib_max_logins_per_lun_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct sbp_tpg *tpg = container_of(se_tpg, struct sbp_tpg, se_tpg); struct sbp_tport *tport = tpg->tport; unsigned long val; @@ -2330,14 +2319,14 @@ static ssize_t sbp_tpg_attrib_store_max_logins_per_lun( return count; } -TF_TPG_ATTRIB_ATTR(sbp, mgt_orb_timeout, S_IRUGO | S_IWUSR); -TF_TPG_ATTRIB_ATTR(sbp, max_reconnect_timeout, S_IRUGO | S_IWUSR); -TF_TPG_ATTRIB_ATTR(sbp, max_logins_per_lun, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(sbp_tpg_attrib_, mgt_orb_timeout); +CONFIGFS_ATTR(sbp_tpg_attrib_, max_reconnect_timeout); +CONFIGFS_ATTR(sbp_tpg_attrib_, max_logins_per_lun); static struct configfs_attribute *sbp_tpg_attrib_attrs[] = { - &sbp_tpg_attrib_mgt_orb_timeout.attr, - &sbp_tpg_attrib_max_reconnect_timeout.attr, - &sbp_tpg_attrib_max_logins_per_lun.attr, + &sbp_tpg_attrib_attr_mgt_orb_timeout, + &sbp_tpg_attrib_attr_max_reconnect_timeout, + &sbp_tpg_attrib_attr_max_logins_per_lun, NULL, }; diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 860e84046177..b9b9ffde4c7a 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -40,8 +40,6 @@ #include #include #include -#include -#include #include "target_core_internal.h" #include "target_core_alua.h" @@ -78,12 +76,6 @@ extern struct t10_alua_lu_gp *default_lu_gp; static LIST_HEAD(g_tf_list); static DEFINE_MUTEX(g_tf_lock); -struct target_core_configfs_attribute { - struct configfs_attribute attr; - ssize_t (*show)(void *, char *); - ssize_t (*store)(void *, const char *, size_t); -}; - static struct config_group target_core_hbagroup; static struct config_group alua_group; static struct config_group alua_lu_gps_group; @@ -97,24 +89,15 @@ item_to_hba(struct config_item *item) /* * Attributes for /sys/kernel/config/target/ */ -static ssize_t target_core_attr_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) +static ssize_t target_core_item_version_show(struct config_item *item, + char *page) { return sprintf(page, "Target Engine Core ConfigFS Infrastructure %s" " on %s/%s on "UTS_RELEASE"\n", TARGET_CORE_VERSION, utsname()->sysname, utsname()->machine); } -static struct configfs_item_operations target_core_fabric_item_ops = { - .show_attribute = target_core_attr_show, -}; - -static struct configfs_attribute target_core_item_attr_version = { - .ca_owner = THIS_MODULE, - .ca_name = "version", - .ca_mode = S_IRUGO, -}; +CONFIGFS_ATTR_RO(target_core_item_, version); static struct target_fabric_configfs *target_core_get_fabric( const char *name) @@ -273,7 +256,6 @@ static struct configfs_attribute *target_core_fabric_item_attrs[] = { * Provides Fabrics Groups and Item Attributes for /sys/kernel/config/target/ */ static struct config_item_type target_core_fabrics_item = { - .ct_item_ops = &target_core_fabric_item_ops, .ct_group_ops = &target_core_fabric_group_ops, .ct_attrs = target_core_fabric_item_attrs, .ct_owner = THIS_MODULE, @@ -476,47 +458,54 @@ EXPORT_SYMBOL(target_unregister_template); // Stop functions called by external Target Fabrics Modules //############################################################################*/ +static inline struct se_dev_attrib *to_attrib(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_dev_attrib, + da_group); +} + /* Start functions for struct config_item_type tb_dev_attrib_cit */ -#define DEF_TB_DEV_ATTRIB_SHOW(_name) \ -static ssize_t show_##_name(struct se_dev_attrib *da, char *page) \ +#define DEF_CONFIGFS_ATTRIB_SHOW(_name) \ +static ssize_t _name##_show(struct config_item *item, char *page) \ { \ - return snprintf(page, PAGE_SIZE, "%u\n", da->_name); \ -} - -DEF_TB_DEV_ATTRIB_SHOW(emulate_model_alias); -DEF_TB_DEV_ATTRIB_SHOW(emulate_dpo); -DEF_TB_DEV_ATTRIB_SHOW(emulate_fua_write); -DEF_TB_DEV_ATTRIB_SHOW(emulate_fua_read); -DEF_TB_DEV_ATTRIB_SHOW(emulate_write_cache); -DEF_TB_DEV_ATTRIB_SHOW(emulate_ua_intlck_ctrl); -DEF_TB_DEV_ATTRIB_SHOW(emulate_tas); -DEF_TB_DEV_ATTRIB_SHOW(emulate_tpu); -DEF_TB_DEV_ATTRIB_SHOW(emulate_tpws); -DEF_TB_DEV_ATTRIB_SHOW(emulate_caw); -DEF_TB_DEV_ATTRIB_SHOW(emulate_3pc); -DEF_TB_DEV_ATTRIB_SHOW(pi_prot_type); -DEF_TB_DEV_ATTRIB_SHOW(hw_pi_prot_type); -DEF_TB_DEV_ATTRIB_SHOW(pi_prot_format); -DEF_TB_DEV_ATTRIB_SHOW(enforce_pr_isids); -DEF_TB_DEV_ATTRIB_SHOW(is_nonrot); -DEF_TB_DEV_ATTRIB_SHOW(emulate_rest_reord); -DEF_TB_DEV_ATTRIB_SHOW(force_pr_aptpl); -DEF_TB_DEV_ATTRIB_SHOW(hw_block_size); -DEF_TB_DEV_ATTRIB_SHOW(block_size); -DEF_TB_DEV_ATTRIB_SHOW(hw_max_sectors); -DEF_TB_DEV_ATTRIB_SHOW(optimal_sectors); -DEF_TB_DEV_ATTRIB_SHOW(hw_queue_depth); -DEF_TB_DEV_ATTRIB_SHOW(queue_depth); -DEF_TB_DEV_ATTRIB_SHOW(max_unmap_lba_count); -DEF_TB_DEV_ATTRIB_SHOW(max_unmap_block_desc_count); -DEF_TB_DEV_ATTRIB_SHOW(unmap_granularity); -DEF_TB_DEV_ATTRIB_SHOW(unmap_granularity_alignment); -DEF_TB_DEV_ATTRIB_SHOW(max_write_same_len); - -#define DEF_TB_DEV_ATTRIB_STORE_U32(_name) \ -static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\ + return snprintf(page, PAGE_SIZE, "%u\n", to_attrib(item)->_name); \ +} + +DEF_CONFIGFS_ATTRIB_SHOW(emulate_model_alias); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_dpo); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_fua_write); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_fua_read); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_write_cache); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_ua_intlck_ctrl); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_tas); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_tpu); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_tpws); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_caw); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_3pc); +DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_type); +DEF_CONFIGFS_ATTRIB_SHOW(hw_pi_prot_type); +DEF_CONFIGFS_ATTRIB_SHOW(pi_prot_format); +DEF_CONFIGFS_ATTRIB_SHOW(enforce_pr_isids); +DEF_CONFIGFS_ATTRIB_SHOW(is_nonrot); +DEF_CONFIGFS_ATTRIB_SHOW(emulate_rest_reord); +DEF_CONFIGFS_ATTRIB_SHOW(force_pr_aptpl); +DEF_CONFIGFS_ATTRIB_SHOW(hw_block_size); +DEF_CONFIGFS_ATTRIB_SHOW(block_size); +DEF_CONFIGFS_ATTRIB_SHOW(hw_max_sectors); +DEF_CONFIGFS_ATTRIB_SHOW(optimal_sectors); +DEF_CONFIGFS_ATTRIB_SHOW(hw_queue_depth); +DEF_CONFIGFS_ATTRIB_SHOW(queue_depth); +DEF_CONFIGFS_ATTRIB_SHOW(max_unmap_lba_count); +DEF_CONFIGFS_ATTRIB_SHOW(max_unmap_block_desc_count); +DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity); +DEF_CONFIGFS_ATTRIB_SHOW(unmap_granularity_alignment); +DEF_CONFIGFS_ATTRIB_SHOW(max_write_same_len); + +#define DEF_CONFIGFS_ATTRIB_STORE_U32(_name) \ +static ssize_t _name##_store(struct config_item *item, const char *page,\ size_t count) \ { \ + struct se_dev_attrib *da = to_attrib(item); \ u32 val; \ int ret; \ \ @@ -527,16 +516,17 @@ static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\ return count; \ } -DEF_TB_DEV_ATTRIB_STORE_U32(max_unmap_lba_count); -DEF_TB_DEV_ATTRIB_STORE_U32(max_unmap_block_desc_count); -DEF_TB_DEV_ATTRIB_STORE_U32(unmap_granularity); -DEF_TB_DEV_ATTRIB_STORE_U32(unmap_granularity_alignment); -DEF_TB_DEV_ATTRIB_STORE_U32(max_write_same_len); +DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_lba_count); +DEF_CONFIGFS_ATTRIB_STORE_U32(max_unmap_block_desc_count); +DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity); +DEF_CONFIGFS_ATTRIB_STORE_U32(unmap_granularity_alignment); +DEF_CONFIGFS_ATTRIB_STORE_U32(max_write_same_len); -#define DEF_TB_DEV_ATTRIB_STORE_BOOL(_name) \ -static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\ +#define DEF_CONFIGFS_ATTRIB_STORE_BOOL(_name) \ +static ssize_t _name##_store(struct config_item *item, const char *page, \ size_t count) \ { \ + struct se_dev_attrib *da = to_attrib(item); \ bool flag; \ int ret; \ \ @@ -547,14 +537,14 @@ static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\ return count; \ } -DEF_TB_DEV_ATTRIB_STORE_BOOL(emulate_fua_write); -DEF_TB_DEV_ATTRIB_STORE_BOOL(emulate_caw); -DEF_TB_DEV_ATTRIB_STORE_BOOL(emulate_3pc); -DEF_TB_DEV_ATTRIB_STORE_BOOL(enforce_pr_isids); -DEF_TB_DEV_ATTRIB_STORE_BOOL(is_nonrot); +DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_fua_write); +DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_caw); +DEF_CONFIGFS_ATTRIB_STORE_BOOL(emulate_3pc); +DEF_CONFIGFS_ATTRIB_STORE_BOOL(enforce_pr_isids); +DEF_CONFIGFS_ATTRIB_STORE_BOOL(is_nonrot); -#define DEF_TB_DEV_ATTRIB_STORE_STUB(_name) \ -static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\ +#define DEF_CONFIGFS_ATTRIB_STORE_STUB(_name) \ +static ssize_t _name##_store(struct config_item *item, const char *page,\ size_t count) \ { \ printk_once(KERN_WARNING \ @@ -562,8 +552,8 @@ static ssize_t store_##_name(struct se_dev_attrib *da, const char *page,\ return count; \ } -DEF_TB_DEV_ATTRIB_STORE_STUB(emulate_dpo); -DEF_TB_DEV_ATTRIB_STORE_STUB(emulate_fua_read); +DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_dpo); +DEF_CONFIGFS_ATTRIB_STORE_STUB(emulate_fua_read); static void dev_set_t10_wwn_model_alias(struct se_device *dev) { @@ -578,9 +568,10 @@ static void dev_set_t10_wwn_model_alias(struct se_device *dev) snprintf(&dev->t10_wwn.model[0], 16, "%s", configname); } -static ssize_t store_emulate_model_alias(struct se_dev_attrib *da, +static ssize_t emulate_model_alias_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); struct se_device *dev = da->da_dev; bool flag; int ret; @@ -606,9 +597,10 @@ static ssize_t store_emulate_model_alias(struct se_dev_attrib *da, return count; } -static ssize_t store_emulate_write_cache(struct se_dev_attrib *da, +static ssize_t emulate_write_cache_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); bool flag; int ret; @@ -627,9 +619,10 @@ static ssize_t store_emulate_write_cache(struct se_dev_attrib *da, return count; } -static ssize_t store_emulate_ua_intlck_ctrl(struct se_dev_attrib *da, +static ssize_t emulate_ua_intlck_ctrl_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); u32 val; int ret; @@ -654,9 +647,10 @@ static ssize_t store_emulate_ua_intlck_ctrl(struct se_dev_attrib *da, return count; } -static ssize_t store_emulate_tas(struct se_dev_attrib *da, +static ssize_t emulate_tas_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); bool flag; int ret; @@ -677,9 +671,10 @@ static ssize_t store_emulate_tas(struct se_dev_attrib *da, return count; } -static ssize_t store_emulate_tpu(struct se_dev_attrib *da, +static ssize_t emulate_tpu_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); bool flag; int ret; @@ -702,9 +697,10 @@ static ssize_t store_emulate_tpu(struct se_dev_attrib *da, return count; } -static ssize_t store_emulate_tpws(struct se_dev_attrib *da, +static ssize_t emulate_tpws_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); bool flag; int ret; @@ -727,9 +723,10 @@ static ssize_t store_emulate_tpws(struct se_dev_attrib *da, return count; } -static ssize_t store_pi_prot_type(struct se_dev_attrib *da, +static ssize_t pi_prot_type_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); int old_prot = da->pi_prot_type, ret; struct se_device *dev = da->da_dev; u32 flag; @@ -787,9 +784,10 @@ static ssize_t store_pi_prot_type(struct se_dev_attrib *da, return count; } -static ssize_t store_pi_prot_format(struct se_dev_attrib *da, +static ssize_t pi_prot_format_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); struct se_device *dev = da->da_dev; bool flag; int ret; @@ -824,9 +822,10 @@ static ssize_t store_pi_prot_format(struct se_dev_attrib *da, return count; } -static ssize_t store_force_pr_aptpl(struct se_dev_attrib *da, +static ssize_t force_pr_aptpl_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); bool flag; int ret; @@ -845,9 +844,10 @@ static ssize_t store_force_pr_aptpl(struct se_dev_attrib *da, return count; } -static ssize_t store_emulate_rest_reord(struct se_dev_attrib *da, +static ssize_t emulate_rest_reord_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); bool flag; int ret; @@ -869,9 +869,10 @@ static ssize_t store_emulate_rest_reord(struct se_dev_attrib *da, /* * Note, this can only be called on unexported SE Device Object. */ -static ssize_t store_queue_depth(struct se_dev_attrib *da, +static ssize_t queue_depth_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); struct se_device *dev = da->da_dev; u32 val; int ret; @@ -905,9 +906,10 @@ static ssize_t store_queue_depth(struct se_dev_attrib *da, return count; } -static ssize_t store_optimal_sectors(struct se_dev_attrib *da, +static ssize_t optimal_sectors_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); u32 val; int ret; @@ -934,9 +936,10 @@ static ssize_t store_optimal_sectors(struct se_dev_attrib *da, return count; } -static ssize_t store_block_size(struct se_dev_attrib *da, +static ssize_t block_size_store(struct config_item *item, const char *page, size_t count) { + struct se_dev_attrib *da = to_attrib(item); u32 val; int ret; @@ -967,50 +970,35 @@ static ssize_t store_block_size(struct se_dev_attrib *da, return count; } -CONFIGFS_EATTR_STRUCT(target_backend_dev_attrib, se_dev_attrib); -#define TB_DEV_ATTR(_backend, _name, _mode) \ -static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - show_##_name, \ - store_##_name); - -#define TB_DEV_ATTR_RO(_backend, _name) \ -static struct target_backend_dev_attrib_attribute _backend##_dev_attrib_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - show_##_name); - -TB_DEV_ATTR(target_core, emulate_model_alias, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_dpo, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_fua_write, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_fua_read, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_write_cache, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_ua_intlck_ctrl, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_tas, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_tpu, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_tpws, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_caw, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_3pc, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, pi_prot_type, S_IRUGO | S_IWUSR); -TB_DEV_ATTR_RO(target_core, hw_pi_prot_type); -TB_DEV_ATTR(target_core, pi_prot_format, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, enforce_pr_isids, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, is_nonrot, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, emulate_rest_reord, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, force_pr_aptpl, S_IRUGO | S_IWUSR) -TB_DEV_ATTR_RO(target_core, hw_block_size); -TB_DEV_ATTR(target_core, block_size, S_IRUGO | S_IWUSR) -TB_DEV_ATTR_RO(target_core, hw_max_sectors); -TB_DEV_ATTR(target_core, optimal_sectors, S_IRUGO | S_IWUSR); -TB_DEV_ATTR_RO(target_core, hw_queue_depth); -TB_DEV_ATTR(target_core, queue_depth, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, max_unmap_lba_count, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, max_unmap_block_desc_count, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, unmap_granularity, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, unmap_granularity_alignment, S_IRUGO | S_IWUSR); -TB_DEV_ATTR(target_core, max_write_same_len, S_IRUGO | S_IWUSR); - -CONFIGFS_EATTR_STRUCT(target_core_dev_attrib, se_dev_attrib); -CONFIGFS_EATTR_OPS(target_core_dev_attrib, se_dev_attrib, da_group); +CONFIGFS_ATTR(, emulate_model_alias); +CONFIGFS_ATTR(, emulate_dpo); +CONFIGFS_ATTR(, emulate_fua_write); +CONFIGFS_ATTR(, emulate_fua_read); +CONFIGFS_ATTR(, emulate_write_cache); +CONFIGFS_ATTR(, emulate_ua_intlck_ctrl); +CONFIGFS_ATTR(, emulate_tas); +CONFIGFS_ATTR(, emulate_tpu); +CONFIGFS_ATTR(, emulate_tpws); +CONFIGFS_ATTR(, emulate_caw); +CONFIGFS_ATTR(, emulate_3pc); +CONFIGFS_ATTR(, pi_prot_type); +CONFIGFS_ATTR_RO(, hw_pi_prot_type); +CONFIGFS_ATTR(, pi_prot_format); +CONFIGFS_ATTR(, enforce_pr_isids); +CONFIGFS_ATTR(, is_nonrot); +CONFIGFS_ATTR(, emulate_rest_reord); +CONFIGFS_ATTR(, force_pr_aptpl); +CONFIGFS_ATTR_RO(, hw_block_size); +CONFIGFS_ATTR(, block_size); +CONFIGFS_ATTR_RO(, hw_max_sectors); +CONFIGFS_ATTR(, optimal_sectors); +CONFIGFS_ATTR_RO(, hw_queue_depth); +CONFIGFS_ATTR(, queue_depth); +CONFIGFS_ATTR(, max_unmap_lba_count); +CONFIGFS_ATTR(, max_unmap_block_desc_count); +CONFIGFS_ATTR(, unmap_granularity); +CONFIGFS_ATTR(, unmap_granularity_alignment); +CONFIGFS_ATTR(, max_write_same_len); /* * dev_attrib attributes for devices using the target core SBC/SPC @@ -1018,100 +1006,78 @@ CONFIGFS_EATTR_OPS(target_core_dev_attrib, se_dev_attrib, da_group); * these. */ struct configfs_attribute *sbc_attrib_attrs[] = { - &target_core_dev_attrib_emulate_model_alias.attr, - &target_core_dev_attrib_emulate_dpo.attr, - &target_core_dev_attrib_emulate_fua_write.attr, - &target_core_dev_attrib_emulate_fua_read.attr, - &target_core_dev_attrib_emulate_write_cache.attr, - &target_core_dev_attrib_emulate_ua_intlck_ctrl.attr, - &target_core_dev_attrib_emulate_tas.attr, - &target_core_dev_attrib_emulate_tpu.attr, - &target_core_dev_attrib_emulate_tpws.attr, - &target_core_dev_attrib_emulate_caw.attr, - &target_core_dev_attrib_emulate_3pc.attr, - &target_core_dev_attrib_pi_prot_type.attr, - &target_core_dev_attrib_hw_pi_prot_type.attr, - &target_core_dev_attrib_pi_prot_format.attr, - &target_core_dev_attrib_enforce_pr_isids.attr, - &target_core_dev_attrib_is_nonrot.attr, - &target_core_dev_attrib_emulate_rest_reord.attr, - &target_core_dev_attrib_force_pr_aptpl.attr, - &target_core_dev_attrib_hw_block_size.attr, - &target_core_dev_attrib_block_size.attr, - &target_core_dev_attrib_hw_max_sectors.attr, - &target_core_dev_attrib_optimal_sectors.attr, - &target_core_dev_attrib_hw_queue_depth.attr, - &target_core_dev_attrib_queue_depth.attr, - &target_core_dev_attrib_max_unmap_lba_count.attr, - &target_core_dev_attrib_max_unmap_block_desc_count.attr, - &target_core_dev_attrib_unmap_granularity.attr, - &target_core_dev_attrib_unmap_granularity_alignment.attr, - &target_core_dev_attrib_max_write_same_len.attr, + &attr_emulate_model_alias, + &attr_emulate_dpo, + &attr_emulate_fua_write, + &attr_emulate_fua_read, + &attr_emulate_write_cache, + &attr_emulate_ua_intlck_ctrl, + &attr_emulate_tas, + &attr_emulate_tpu, + &attr_emulate_tpws, + &attr_emulate_caw, + &attr_emulate_3pc, + &attr_pi_prot_type, + &attr_hw_pi_prot_type, + &attr_pi_prot_format, + &attr_enforce_pr_isids, + &attr_is_nonrot, + &attr_emulate_rest_reord, + &attr_force_pr_aptpl, + &attr_hw_block_size, + &attr_block_size, + &attr_hw_max_sectors, + &attr_optimal_sectors, + &attr_hw_queue_depth, + &attr_queue_depth, + &attr_max_unmap_lba_count, + &attr_max_unmap_block_desc_count, + &attr_unmap_granularity, + &attr_unmap_granularity_alignment, + &attr_max_write_same_len, NULL, }; EXPORT_SYMBOL(sbc_attrib_attrs); -TB_DEV_ATTR_RO(target_pt, hw_pi_prot_type); -TB_DEV_ATTR_RO(target_pt, hw_block_size); -TB_DEV_ATTR_RO(target_pt, hw_max_sectors); -TB_DEV_ATTR_RO(target_pt, hw_queue_depth); - /* * Minimal dev_attrib attributes for devices passing through CDBs. * In this case we only provide a few read-only attributes for * backwards compatibility. */ struct configfs_attribute *passthrough_attrib_attrs[] = { - &target_pt_dev_attrib_hw_pi_prot_type.attr, - &target_pt_dev_attrib_hw_block_size.attr, - &target_pt_dev_attrib_hw_max_sectors.attr, - &target_pt_dev_attrib_hw_queue_depth.attr, + &attr_hw_pi_prot_type, + &attr_hw_block_size, + &attr_hw_max_sectors, + &attr_hw_queue_depth, NULL, }; EXPORT_SYMBOL(passthrough_attrib_attrs); -static struct configfs_item_operations target_core_dev_attrib_ops = { - .show_attribute = target_core_dev_attrib_attr_show, - .store_attribute = target_core_dev_attrib_attr_store, -}; - -TB_CIT_SETUP_DRV(dev_attrib, &target_core_dev_attrib_ops, NULL); +TB_CIT_SETUP_DRV(dev_attrib, NULL, NULL); /* End functions for struct config_item_type tb_dev_attrib_cit */ /* Start functions for struct config_item_type tb_dev_wwn_cit */ -CONFIGFS_EATTR_STRUCT(target_core_dev_wwn, t10_wwn); -#define SE_DEV_WWN_ATTR(_name, _mode) \ -static struct target_core_dev_wwn_attribute target_core_dev_wwn_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_core_dev_wwn_show_attr_##_name, \ - target_core_dev_wwn_store_attr_##_name); - -#define SE_DEV_WWN_ATTR_RO(_name); \ -do { \ - static struct target_core_dev_wwn_attribute \ - target_core_dev_wwn_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_core_dev_wwn_show_attr_##_name); \ -} while (0); +static struct t10_wwn *to_t10_wwn(struct config_item *item) +{ + return container_of(to_config_group(item), struct t10_wwn, t10_wwn_group); +} /* * VPD page 0x80 Unit serial */ -static ssize_t target_core_dev_wwn_show_attr_vpd_unit_serial( - struct t10_wwn *t10_wwn, - char *page) +static ssize_t target_wwn_vpd_unit_serial_show(struct config_item *item, + char *page) { return sprintf(page, "T10 VPD Unit Serial Number: %s\n", - &t10_wwn->unit_serial[0]); + &to_t10_wwn(item)->unit_serial[0]); } -static ssize_t target_core_dev_wwn_store_attr_vpd_unit_serial( - struct t10_wwn *t10_wwn, - const char *page, - size_t count) +static ssize_t target_wwn_vpd_unit_serial_store(struct config_item *item, + const char *page, size_t count) { + struct t10_wwn *t10_wwn = to_t10_wwn(item); struct se_device *dev = t10_wwn->t10_dev; unsigned char buf[INQUIRY_VPD_SERIAL_LEN]; @@ -1167,15 +1133,13 @@ static ssize_t target_core_dev_wwn_store_attr_vpd_unit_serial( return count; } -SE_DEV_WWN_ATTR(vpd_unit_serial, S_IRUGO | S_IWUSR); - /* * VPD page 0x83 Protocol Identifier */ -static ssize_t target_core_dev_wwn_show_attr_vpd_protocol_identifier( - struct t10_wwn *t10_wwn, - char *page) +static ssize_t target_wwn_vpd_protocol_identifier_show(struct config_item *item, + char *page) { + struct t10_wwn *t10_wwn = to_t10_wwn(item); struct t10_vpd *vpd; unsigned char buf[VPD_TMP_BUF_SIZE]; ssize_t len = 0; @@ -1199,25 +1163,15 @@ static ssize_t target_core_dev_wwn_show_attr_vpd_protocol_identifier( return len; } -static ssize_t target_core_dev_wwn_store_attr_vpd_protocol_identifier( - struct t10_wwn *t10_wwn, - const char *page, - size_t count) -{ - return -ENOSYS; -} - -SE_DEV_WWN_ATTR(vpd_protocol_identifier, S_IRUGO | S_IWUSR); - /* * Generic wrapper for dumping VPD identifiers by association. */ #define DEF_DEV_WWN_ASSOC_SHOW(_name, _assoc) \ -static ssize_t target_core_dev_wwn_show_attr_##_name( \ - struct t10_wwn *t10_wwn, \ - char *page) \ +static ssize_t target_wwn_##_name##_show(struct config_item *item, \ + char *page) \ { \ - struct t10_vpd *vpd; \ + struct t10_wwn *t10_wwn = to_t10_wwn(item); \ + struct t10_vpd *vpd; \ unsigned char buf[VPD_TMP_BUF_SIZE]; \ ssize_t len = 0; \ \ @@ -1249,84 +1203,39 @@ static ssize_t target_core_dev_wwn_show_attr_##_name( \ return len; \ } -/* - * VPD page 0x83 Association: Logical Unit - */ +/* VPD page 0x83 Association: Logical Unit */ DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_logical_unit, 0x00); - -static ssize_t target_core_dev_wwn_store_attr_vpd_assoc_logical_unit( - struct t10_wwn *t10_wwn, - const char *page, - size_t count) -{ - return -ENOSYS; -} - -SE_DEV_WWN_ATTR(vpd_assoc_logical_unit, S_IRUGO | S_IWUSR); - -/* - * VPD page 0x83 Association: Target Port - */ +/* VPD page 0x83 Association: Target Port */ DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_target_port, 0x10); - -static ssize_t target_core_dev_wwn_store_attr_vpd_assoc_target_port( - struct t10_wwn *t10_wwn, - const char *page, - size_t count) -{ - return -ENOSYS; -} - -SE_DEV_WWN_ATTR(vpd_assoc_target_port, S_IRUGO | S_IWUSR); - -/* - * VPD page 0x83 Association: SCSI Target Device - */ +/* VPD page 0x83 Association: SCSI Target Device */ DEF_DEV_WWN_ASSOC_SHOW(vpd_assoc_scsi_target_device, 0x20); -static ssize_t target_core_dev_wwn_store_attr_vpd_assoc_scsi_target_device( - struct t10_wwn *t10_wwn, - const char *page, - size_t count) -{ - return -ENOSYS; -} - -SE_DEV_WWN_ATTR(vpd_assoc_scsi_target_device, S_IRUGO | S_IWUSR); - -CONFIGFS_EATTR_OPS(target_core_dev_wwn, t10_wwn, t10_wwn_group); +CONFIGFS_ATTR(target_wwn_, vpd_unit_serial); +CONFIGFS_ATTR_RO(target_wwn_, vpd_protocol_identifier); +CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_logical_unit); +CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_target_port); +CONFIGFS_ATTR_RO(target_wwn_, vpd_assoc_scsi_target_device); static struct configfs_attribute *target_core_dev_wwn_attrs[] = { - &target_core_dev_wwn_vpd_unit_serial.attr, - &target_core_dev_wwn_vpd_protocol_identifier.attr, - &target_core_dev_wwn_vpd_assoc_logical_unit.attr, - &target_core_dev_wwn_vpd_assoc_target_port.attr, - &target_core_dev_wwn_vpd_assoc_scsi_target_device.attr, + &target_wwn_attr_vpd_unit_serial, + &target_wwn_attr_vpd_protocol_identifier, + &target_wwn_attr_vpd_assoc_logical_unit, + &target_wwn_attr_vpd_assoc_target_port, + &target_wwn_attr_vpd_assoc_scsi_target_device, NULL, }; -static struct configfs_item_operations target_core_dev_wwn_ops = { - .show_attribute = target_core_dev_wwn_attr_show, - .store_attribute = target_core_dev_wwn_attr_store, -}; - -TB_CIT_SETUP(dev_wwn, &target_core_dev_wwn_ops, NULL, target_core_dev_wwn_attrs); +TB_CIT_SETUP(dev_wwn, NULL, NULL, target_core_dev_wwn_attrs); /* End functions for struct config_item_type tb_dev_wwn_cit */ /* Start functions for struct config_item_type tb_dev_pr_cit */ -CONFIGFS_EATTR_STRUCT(target_core_dev_pr, se_device); -#define SE_DEV_PR_ATTR(_name, _mode) \ -static struct target_core_dev_pr_attribute target_core_dev_pr_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_core_dev_pr_show_attr_##_name, \ - target_core_dev_pr_store_attr_##_name); - -#define SE_DEV_PR_ATTR_RO(_name); \ -static struct target_core_dev_pr_attribute target_core_dev_pr_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_core_dev_pr_show_attr_##_name); +static struct se_device *pr_to_dev(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_device, + dev_pr_group); +} static ssize_t target_core_dev_pr_show_spc3_res(struct se_device *dev, char *page) @@ -1367,9 +1276,9 @@ static ssize_t target_core_dev_pr_show_spc2_res(struct se_device *dev, return len; } -static ssize_t target_core_dev_pr_show_attr_res_holder(struct se_device *dev, - char *page) +static ssize_t target_pr_res_holder_show(struct config_item *item, char *page) { + struct se_device *dev = pr_to_dev(item); int ret; if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) @@ -1384,11 +1293,10 @@ static ssize_t target_core_dev_pr_show_attr_res_holder(struct se_device *dev, return ret; } -SE_DEV_PR_ATTR_RO(res_holder); - -static ssize_t target_core_dev_pr_show_attr_res_pr_all_tgt_pts( - struct se_device *dev, char *page) +static ssize_t target_pr_res_pr_all_tgt_pts_show(struct config_item *item, + char *page) { + struct se_device *dev = pr_to_dev(item); ssize_t len = 0; spin_lock(&dev->dev_reservation_lock); @@ -1406,22 +1314,17 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_all_tgt_pts( return len; } -SE_DEV_PR_ATTR_RO(res_pr_all_tgt_pts); - -static ssize_t target_core_dev_pr_show_attr_res_pr_generation( - struct se_device *dev, char *page) +static ssize_t target_pr_res_pr_generation_show(struct config_item *item, + char *page) { - return sprintf(page, "0x%08x\n", dev->t10_pr.pr_generation); + return sprintf(page, "0x%08x\n", pr_to_dev(item)->t10_pr.pr_generation); } -SE_DEV_PR_ATTR_RO(res_pr_generation); -/* - * res_pr_holder_tg_port - */ -static ssize_t target_core_dev_pr_show_attr_res_pr_holder_tg_port( - struct se_device *dev, char *page) +static ssize_t target_pr_res_pr_holder_tg_port_show(struct config_item *item, + char *page) { + struct se_device *dev = pr_to_dev(item); struct se_node_acl *se_nacl; struct se_portal_group *se_tpg; struct t10_pr_registration *pr_reg; @@ -1453,11 +1356,11 @@ out_unlock: return len; } -SE_DEV_PR_ATTR_RO(res_pr_holder_tg_port); -static ssize_t target_core_dev_pr_show_attr_res_pr_registered_i_pts( - struct se_device *dev, char *page) +static ssize_t target_pr_res_pr_registered_i_pts_show(struct config_item *item, + char *page) { + struct se_device *dev = pr_to_dev(item); const struct target_core_fabric_ops *tfo; struct t10_pr_registration *pr_reg; unsigned char buf[384]; @@ -1495,11 +1398,9 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_registered_i_pts( return len; } -SE_DEV_PR_ATTR_RO(res_pr_registered_i_pts); - -static ssize_t target_core_dev_pr_show_attr_res_pr_type( - struct se_device *dev, char *page) +static ssize_t target_pr_res_pr_type_show(struct config_item *item, char *page) { + struct se_device *dev = pr_to_dev(item); struct t10_pr_registration *pr_reg; ssize_t len = 0; @@ -1516,11 +1417,10 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_type( return len; } -SE_DEV_PR_ATTR_RO(res_pr_type); - -static ssize_t target_core_dev_pr_show_attr_res_type( - struct se_device *dev, char *page) +static ssize_t target_pr_res_type_show(struct config_item *item, char *page) { + struct se_device *dev = pr_to_dev(item); + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) return sprintf(page, "SPC_PASSTHROUGH\n"); else if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS) @@ -1529,11 +1429,11 @@ static ssize_t target_core_dev_pr_show_attr_res_type( return sprintf(page, "SPC3_PERSISTENT_RESERVATIONS\n"); } -SE_DEV_PR_ATTR_RO(res_type); - -static ssize_t target_core_dev_pr_show_attr_res_aptpl_active( - struct se_device *dev, char *page) +static ssize_t target_pr_res_aptpl_active_show(struct config_item *item, + char *page) { + struct se_device *dev = pr_to_dev(item); + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) return 0; @@ -1541,14 +1441,11 @@ static ssize_t target_core_dev_pr_show_attr_res_aptpl_active( (dev->t10_pr.pr_aptpl_active) ? "Activated" : "Disabled"); } -SE_DEV_PR_ATTR_RO(res_aptpl_active); - -/* - * res_aptpl_metadata - */ -static ssize_t target_core_dev_pr_show_attr_res_aptpl_metadata( - struct se_device *dev, char *page) +static ssize_t target_pr_res_aptpl_metadata_show(struct config_item *item, + char *page) { + struct se_device *dev = pr_to_dev(item); + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) return 0; @@ -1580,11 +1477,10 @@ static match_table_t tokens = { {Opt_err, NULL} }; -static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata( - struct se_device *dev, - const char *page, - size_t count) +static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item, + const char *page, size_t count) { + struct se_device *dev = pr_to_dev(item); unsigned char *i_fabric = NULL, *i_port = NULL, *isid = NULL; unsigned char *t_fabric = NULL, *t_port = NULL; char *orig, *ptr, *opts; @@ -1765,37 +1661,44 @@ out: return (ret == 0) ? count : ret; } -SE_DEV_PR_ATTR(res_aptpl_metadata, S_IRUGO | S_IWUSR); -CONFIGFS_EATTR_OPS(target_core_dev_pr, se_device, dev_pr_group); +CONFIGFS_ATTR_RO(target_pr_, res_holder); +CONFIGFS_ATTR_RO(target_pr_, res_pr_all_tgt_pts); +CONFIGFS_ATTR_RO(target_pr_, res_pr_generation); +CONFIGFS_ATTR_RO(target_pr_, res_pr_holder_tg_port); +CONFIGFS_ATTR_RO(target_pr_, res_pr_registered_i_pts); +CONFIGFS_ATTR_RO(target_pr_, res_pr_type); +CONFIGFS_ATTR_RO(target_pr_, res_type); +CONFIGFS_ATTR_RO(target_pr_, res_aptpl_active); +CONFIGFS_ATTR(target_pr_, res_aptpl_metadata); static struct configfs_attribute *target_core_dev_pr_attrs[] = { - &target_core_dev_pr_res_holder.attr, - &target_core_dev_pr_res_pr_all_tgt_pts.attr, - &target_core_dev_pr_res_pr_generation.attr, - &target_core_dev_pr_res_pr_holder_tg_port.attr, - &target_core_dev_pr_res_pr_registered_i_pts.attr, - &target_core_dev_pr_res_pr_type.attr, - &target_core_dev_pr_res_type.attr, - &target_core_dev_pr_res_aptpl_active.attr, - &target_core_dev_pr_res_aptpl_metadata.attr, + &target_pr_attr_res_holder, + &target_pr_attr_res_pr_all_tgt_pts, + &target_pr_attr_res_pr_generation, + &target_pr_attr_res_pr_holder_tg_port, + &target_pr_attr_res_pr_registered_i_pts, + &target_pr_attr_res_pr_type, + &target_pr_attr_res_type, + &target_pr_attr_res_aptpl_active, + &target_pr_attr_res_aptpl_metadata, NULL, }; -static struct configfs_item_operations target_core_dev_pr_ops = { - .show_attribute = target_core_dev_pr_attr_show, - .store_attribute = target_core_dev_pr_attr_store, -}; - -TB_CIT_SETUP(dev_pr, &target_core_dev_pr_ops, NULL, target_core_dev_pr_attrs); +TB_CIT_SETUP(dev_pr, NULL, NULL, target_core_dev_pr_attrs); /* End functions for struct config_item_type tb_dev_pr_cit */ /* Start functions for struct config_item_type tb_dev_cit */ -static ssize_t target_core_show_dev_info(void *p, char *page) +static inline struct se_device *to_device(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_device, dev_group); +} + +static ssize_t target_dev_info_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); int bl = 0; ssize_t read_bytes = 0; @@ -1806,35 +1709,17 @@ static ssize_t target_core_show_dev_info(void *p, char *page) return read_bytes; } -static struct target_core_configfs_attribute target_core_attr_dev_info = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "info", - .ca_mode = S_IRUGO }, - .show = target_core_show_dev_info, - .store = NULL, -}; - -static ssize_t target_core_store_dev_control( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_control_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); return dev->transport->set_configfs_dev_params(dev, page, count); } -static struct target_core_configfs_attribute target_core_attr_dev_control = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "control", - .ca_mode = S_IWUSR }, - .show = NULL, - .store = target_core_store_dev_control, -}; - -static ssize_t target_core_show_dev_alias(void *p, char *page) +static ssize_t target_dev_alias_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); if (!(dev->dev_flags & DF_USING_ALIAS)) return 0; @@ -1842,12 +1727,10 @@ static ssize_t target_core_show_dev_alias(void *p, char *page) return snprintf(page, PAGE_SIZE, "%s\n", dev->dev_alias); } -static ssize_t target_core_store_dev_alias( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_alias_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct se_hba *hba = dev->se_hba; ssize_t read_bytes; @@ -1874,17 +1757,9 @@ static ssize_t target_core_store_dev_alias( return read_bytes; } -static struct target_core_configfs_attribute target_core_attr_dev_alias = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "alias", - .ca_mode = S_IRUGO | S_IWUSR }, - .show = target_core_show_dev_alias, - .store = target_core_store_dev_alias, -}; - -static ssize_t target_core_show_dev_udev_path(void *p, char *page) +static ssize_t target_dev_udev_path_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); if (!(dev->dev_flags & DF_USING_UDEV_PATH)) return 0; @@ -1892,12 +1767,10 @@ static ssize_t target_core_show_dev_udev_path(void *p, char *page) return snprintf(page, PAGE_SIZE, "%s\n", dev->udev_path); } -static ssize_t target_core_store_dev_udev_path( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_udev_path_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct se_hba *hba = dev->se_hba; ssize_t read_bytes; @@ -1925,27 +1798,17 @@ static ssize_t target_core_store_dev_udev_path( return read_bytes; } -static struct target_core_configfs_attribute target_core_attr_dev_udev_path = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "udev_path", - .ca_mode = S_IRUGO | S_IWUSR }, - .show = target_core_show_dev_udev_path, - .store = target_core_store_dev_udev_path, -}; - -static ssize_t target_core_show_dev_enable(void *p, char *page) +static ssize_t target_dev_enable_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); return snprintf(page, PAGE_SIZE, "%d\n", !!(dev->dev_flags & DF_CONFIGURED)); } -static ssize_t target_core_store_dev_enable( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_enable_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); char *ptr; int ret; @@ -1962,17 +1825,9 @@ static ssize_t target_core_store_dev_enable( return count; } -static struct target_core_configfs_attribute target_core_attr_dev_enable = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "enable", - .ca_mode = S_IRUGO | S_IWUSR }, - .show = target_core_show_dev_enable, - .store = target_core_store_dev_enable, -}; - -static ssize_t target_core_show_alua_lu_gp(void *p, char *page) +static ssize_t target_dev_alua_lu_gp_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct config_item *lu_ci; struct t10_alua_lu_gp *lu_gp; struct t10_alua_lu_gp_member *lu_gp_mem; @@ -1994,12 +1849,10 @@ static ssize_t target_core_show_alua_lu_gp(void *p, char *page) return len; } -static ssize_t target_core_store_alua_lu_gp( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_alua_lu_gp_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct se_hba *hba = dev->se_hba; struct t10_alua_lu_gp *lu_gp = NULL, *lu_gp_new = NULL; struct t10_alua_lu_gp_member *lu_gp_mem; @@ -2076,17 +1929,9 @@ static ssize_t target_core_store_alua_lu_gp( return count; } -static struct target_core_configfs_attribute target_core_attr_dev_alua_lu_gp = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "alua_lu_gp", - .ca_mode = S_IRUGO | S_IWUSR }, - .show = target_core_show_alua_lu_gp, - .store = target_core_store_alua_lu_gp, -}; - -static ssize_t target_core_show_dev_lba_map(void *p, char *page) +static ssize_t target_dev_lba_map_show(struct config_item *item, char *page) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct t10_alua_lba_map *map; struct t10_alua_lba_map_member *mem; char *b = page; @@ -2129,12 +1974,10 @@ static ssize_t target_core_show_dev_lba_map(void *p, char *page) return bl; } -static ssize_t target_core_store_dev_lba_map( - void *p, - const char *page, - size_t count) +static ssize_t target_dev_lba_map_store(struct config_item *item, + const char *page, size_t count) { - struct se_device *dev = p; + struct se_device *dev = to_device(item); struct t10_alua_lba_map *lba_map = NULL; struct list_head lba_list; char *map_entries, *ptr; @@ -2246,22 +2089,22 @@ out: return count; } -static struct target_core_configfs_attribute target_core_attr_dev_lba_map = { - .attr = { .ca_owner = THIS_MODULE, - .ca_name = "lba_map", - .ca_mode = S_IRUGO | S_IWUSR }, - .show = target_core_show_dev_lba_map, - .store = target_core_store_dev_lba_map, -}; +CONFIGFS_ATTR_RO(target_dev_, info); +CONFIGFS_ATTR_WO(target_dev_, control); +CONFIGFS_ATTR(target_dev_, alias); +CONFIGFS_ATTR(target_dev_, udev_path); +CONFIGFS_ATTR(target_dev_, enable); +CONFIGFS_ATTR(target_dev_, alua_lu_gp); +CONFIGFS_ATTR(target_dev_, lba_map); static struct configfs_attribute *target_core_dev_attrs[] = { - &target_core_attr_dev_info.attr, - &target_core_attr_dev_control.attr, - &target_core_attr_dev_alias.attr, - &target_core_attr_dev_udev_path.attr, - &target_core_attr_dev_enable.attr, - &target_core_attr_dev_alua_lu_gp.attr, - &target_core_attr_dev_lba_map.attr, + &target_dev_attr_info, + &target_dev_attr_control, + &target_dev_attr_alias, + &target_dev_attr_udev_path, + &target_dev_attr_enable, + &target_dev_attr_alua_lu_gp, + &target_dev_attr_lba_map, NULL, }; @@ -2275,42 +2118,8 @@ static void target_core_dev_release(struct config_item *item) target_free_device(dev); } -static ssize_t target_core_dev_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) -{ - struct config_group *dev_cg = to_config_group(item); - struct se_device *dev = - container_of(dev_cg, struct se_device, dev_group); - struct target_core_configfs_attribute *tc_attr = container_of( - attr, struct target_core_configfs_attribute, attr); - - if (!tc_attr->show) - return -EINVAL; - - return tc_attr->show(dev, page); -} - -static ssize_t target_core_dev_store(struct config_item *item, - struct configfs_attribute *attr, - const char *page, size_t count) -{ - struct config_group *dev_cg = to_config_group(item); - struct se_device *dev = - container_of(dev_cg, struct se_device, dev_group); - struct target_core_configfs_attribute *tc_attr = container_of( - attr, struct target_core_configfs_attribute, attr); - - if (!tc_attr->store) - return -EINVAL; - - return tc_attr->store(dev, page, count); -} - static struct configfs_item_operations target_core_dev_item_ops = { .release = target_core_dev_release, - .show_attribute = target_core_dev_show, - .store_attribute = target_core_dev_store, }; TB_CIT_SETUP(dev, &target_core_dev_item_ops, NULL, target_core_dev_attrs); @@ -2319,38 +2128,25 @@ TB_CIT_SETUP(dev, &target_core_dev_item_ops, NULL, target_core_dev_attrs); /* Start functions for struct config_item_type target_core_alua_lu_gp_cit */ -CONFIGFS_EATTR_STRUCT(target_core_alua_lu_gp, t10_alua_lu_gp); -#define SE_DEV_ALUA_LU_ATTR(_name, _mode) \ -static struct target_core_alua_lu_gp_attribute \ - target_core_alua_lu_gp_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_core_alua_lu_gp_show_attr_##_name, \ - target_core_alua_lu_gp_store_attr_##_name); - -#define SE_DEV_ALUA_LU_ATTR_RO(_name) \ -static struct target_core_alua_lu_gp_attribute \ - target_core_alua_lu_gp_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_core_alua_lu_gp_show_attr_##_name); +static inline struct t10_alua_lu_gp *to_lu_gp(struct config_item *item) +{ + return container_of(to_config_group(item), struct t10_alua_lu_gp, + lu_gp_group); +} -/* - * lu_gp_id - */ -static ssize_t target_core_alua_lu_gp_show_attr_lu_gp_id( - struct t10_alua_lu_gp *lu_gp, - char *page) +static ssize_t target_lu_gp_lu_gp_id_show(struct config_item *item, char *page) { + struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); + if (!lu_gp->lu_gp_valid_id) return 0; - return sprintf(page, "%hu\n", lu_gp->lu_gp_id); } -static ssize_t target_core_alua_lu_gp_store_attr_lu_gp_id( - struct t10_alua_lu_gp *lu_gp, - const char *page, - size_t count) +static ssize_t target_lu_gp_lu_gp_id_store(struct config_item *item, + const char *page, size_t count) { + struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); struct config_group *alua_lu_gp_cg = &lu_gp->lu_gp_group; unsigned long lu_gp_id; int ret; @@ -2379,15 +2175,9 @@ static ssize_t target_core_alua_lu_gp_store_attr_lu_gp_id( return count; } -SE_DEV_ALUA_LU_ATTR(lu_gp_id, S_IRUGO | S_IWUSR); - -/* - * members - */ -static ssize_t target_core_alua_lu_gp_show_attr_members( - struct t10_alua_lu_gp *lu_gp, - char *page) +static ssize_t target_lu_gp_members_show(struct config_item *item, char *page) { + struct t10_alua_lu_gp *lu_gp = to_lu_gp(item); struct se_device *dev; struct se_hba *hba; struct t10_alua_lu_gp_member *lu_gp_mem; @@ -2419,13 +2209,12 @@ static ssize_t target_core_alua_lu_gp_show_attr_members( return len; } -SE_DEV_ALUA_LU_ATTR_RO(members); - -CONFIGFS_EATTR_OPS(target_core_alua_lu_gp, t10_alua_lu_gp, lu_gp_group); +CONFIGFS_ATTR(target_lu_gp_, lu_gp_id); +CONFIGFS_ATTR_RO(target_lu_gp_, members); static struct configfs_attribute *target_core_alua_lu_gp_attrs[] = { - &target_core_alua_lu_gp_lu_gp_id.attr, - &target_core_alua_lu_gp_members.attr, + &target_lu_gp_attr_lu_gp_id, + &target_lu_gp_attr_members, NULL, }; @@ -2439,8 +2228,6 @@ static void target_core_alua_lu_gp_release(struct config_item *item) static struct configfs_item_operations target_core_alua_lu_gp_ops = { .release = target_core_alua_lu_gp_release, - .show_attribute = target_core_alua_lu_gp_attr_show, - .store_attribute = target_core_alua_lu_gp_attr_store, }; static struct config_item_type target_core_alua_lu_gp_cit = { @@ -2511,36 +2298,23 @@ static struct config_item_type target_core_alua_lu_gps_cit = { /* Start functions for struct config_item_type target_core_alua_tg_pt_gp_cit */ -CONFIGFS_EATTR_STRUCT(target_core_alua_tg_pt_gp, t10_alua_tg_pt_gp); -#define SE_DEV_ALUA_TG_PT_ATTR(_name, _mode) \ -static struct target_core_alua_tg_pt_gp_attribute \ - target_core_alua_tg_pt_gp_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_core_alua_tg_pt_gp_show_attr_##_name, \ - target_core_alua_tg_pt_gp_store_attr_##_name); - -#define SE_DEV_ALUA_TG_PT_ATTR_RO(_name) \ -static struct target_core_alua_tg_pt_gp_attribute \ - target_core_alua_tg_pt_gp_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_core_alua_tg_pt_gp_show_attr_##_name); +static inline struct t10_alua_tg_pt_gp *to_tg_pt_gp(struct config_item *item) +{ + return container_of(to_config_group(item), struct t10_alua_tg_pt_gp, + tg_pt_gp_group); +} -/* - * alua_access_state - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_access_state( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_alua_access_state_show(struct config_item *item, + char *page) { return sprintf(page, "%d\n", - atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state)); + atomic_read(&to_tg_pt_gp(item)->tg_pt_gp_alua_access_state)); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_state( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_alua_access_state_store(struct config_item *item, + const char *page, size_t count) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; unsigned long tmp; int new_state, ret; @@ -2582,24 +2356,18 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_state( return (!ret) ? count : -EINVAL; } -SE_DEV_ALUA_TG_PT_ATTR(alua_access_state, S_IRUGO | S_IWUSR); - -/* - * alua_access_status - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_access_status( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_alua_access_status_show(struct config_item *item, + char *page) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); return sprintf(page, "%s\n", core_alua_dump_status(tg_pt_gp->tg_pt_gp_alua_access_status)); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_status( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_alua_access_status_store( + struct config_item *item, const char *page, size_t count) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); unsigned long tmp; int new_status, ret; @@ -2630,43 +2398,31 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_status( return count; } -SE_DEV_ALUA_TG_PT_ATTR(alua_access_status, S_IRUGO | S_IWUSR); - -/* - * alua_access_type - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_access_type( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_alua_access_type_show(struct config_item *item, + char *page) { - return core_alua_show_access_type(tg_pt_gp, page); + return core_alua_show_access_type(to_tg_pt_gp(item), page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_type( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_alua_access_type_store(struct config_item *item, + const char *page, size_t count) { - return core_alua_store_access_type(tg_pt_gp, page, count); + return core_alua_store_access_type(to_tg_pt_gp(item), page, count); } -SE_DEV_ALUA_TG_PT_ATTR(alua_access_type, S_IRUGO | S_IWUSR); - -/* - * alua_supported_states - */ - -#define SE_DEV_ALUA_SUPPORT_STATE_SHOW(_name, _var, _bit) \ -static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_support_##_name( \ - struct t10_alua_tg_pt_gp *t, char *p) \ +#define ALUA_SUPPORTED_STATE_ATTR(_name, _bit) \ +static ssize_t target_tg_pt_gp_alua_support_##_name##_show( \ + struct config_item *item, char *p) \ { \ - return sprintf(p, "%d\n", !!(t->_var & _bit)); \ -} - -#define SE_DEV_ALUA_SUPPORT_STATE_STORE(_name, _var, _bit) \ -static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_support_##_name(\ - struct t10_alua_tg_pt_gp *t, const char *p, size_t c) \ + struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \ + return sprintf(p, "%d\n", \ + !!(t->tg_pt_gp_alua_supported_states & _bit)); \ +} \ + \ +static ssize_t target_tg_pt_gp_alua_support_##_name##_store( \ + struct config_item *item, const char *p, size_t c) \ { \ + struct t10_alua_tg_pt_gp *t = to_tg_pt_gp(item); \ unsigned long tmp; \ int ret; \ \ @@ -2687,70 +2443,32 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_support_##_name(\ return -EINVAL; \ } \ if (tmp) \ - t->_var |= _bit; \ + t->tg_pt_gp_alua_supported_states |= _bit; \ else \ - t->_var &= ~_bit; \ + t->tg_pt_gp_alua_supported_states &= ~_bit; \ \ return c; \ } -SE_DEV_ALUA_SUPPORT_STATE_SHOW(transitioning, - tg_pt_gp_alua_supported_states, ALUA_T_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(transitioning, - tg_pt_gp_alua_supported_states, ALUA_T_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_transitioning, S_IRUGO | S_IWUSR); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(offline, - tg_pt_gp_alua_supported_states, ALUA_O_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(offline, - tg_pt_gp_alua_supported_states, ALUA_O_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_offline, S_IRUGO | S_IWUSR); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(lba_dependent, - tg_pt_gp_alua_supported_states, ALUA_LBD_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(lba_dependent, - tg_pt_gp_alua_supported_states, ALUA_LBD_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_lba_dependent, S_IRUGO); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(unavailable, - tg_pt_gp_alua_supported_states, ALUA_U_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(unavailable, - tg_pt_gp_alua_supported_states, ALUA_U_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_unavailable, S_IRUGO | S_IWUSR); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(standby, - tg_pt_gp_alua_supported_states, ALUA_S_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(standby, - tg_pt_gp_alua_supported_states, ALUA_S_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_standby, S_IRUGO | S_IWUSR); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(active_optimized, - tg_pt_gp_alua_supported_states, ALUA_AO_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(active_optimized, - tg_pt_gp_alua_supported_states, ALUA_AO_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_active_optimized, S_IRUGO | S_IWUSR); - -SE_DEV_ALUA_SUPPORT_STATE_SHOW(active_nonoptimized, - tg_pt_gp_alua_supported_states, ALUA_AN_SUP); -SE_DEV_ALUA_SUPPORT_STATE_STORE(active_nonoptimized, - tg_pt_gp_alua_supported_states, ALUA_AN_SUP); -SE_DEV_ALUA_TG_PT_ATTR(alua_support_active_nonoptimized, S_IRUGO | S_IWUSR); +ALUA_SUPPORTED_STATE_ATTR(transitioning, ALUA_T_SUP); +ALUA_SUPPORTED_STATE_ATTR(offline, ALUA_O_SUP); +ALUA_SUPPORTED_STATE_ATTR(lba_dependent, ALUA_LBD_SUP); +ALUA_SUPPORTED_STATE_ATTR(unavailable, ALUA_U_SUP); +ALUA_SUPPORTED_STATE_ATTR(standby, ALUA_S_SUP); +ALUA_SUPPORTED_STATE_ATTR(active_optimized, ALUA_AO_SUP); +ALUA_SUPPORTED_STATE_ATTR(active_nonoptimized, ALUA_AN_SUP); -/* - * alua_write_metadata - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_write_metadata( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_alua_write_metadata_show( + struct config_item *item, char *page) { - return sprintf(page, "%d\n", tg_pt_gp->tg_pt_gp_write_metadata); + return sprintf(page, "%d\n", + to_tg_pt_gp(item)->tg_pt_gp_write_metadata); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_write_metadata( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_alua_write_metadata_store( + struct config_item *item, const char *page, size_t count) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); unsigned long tmp; int ret; @@ -2770,110 +2488,71 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_write_metadata( return count; } -SE_DEV_ALUA_TG_PT_ATTR(alua_write_metadata, S_IRUGO | S_IWUSR); - - - -/* - * nonop_delay_msecs - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_nonop_delay_msecs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_nonop_delay_msecs_show(struct config_item *item, + char *page) { - return core_alua_show_nonop_delay_msecs(tg_pt_gp, page); - + return core_alua_show_nonop_delay_msecs(to_tg_pt_gp(item), page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_nonop_delay_msecs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_nonop_delay_msecs_store(struct config_item *item, + const char *page, size_t count) { - return core_alua_store_nonop_delay_msecs(tg_pt_gp, page, count); + return core_alua_store_nonop_delay_msecs(to_tg_pt_gp(item), page, + count); } -SE_DEV_ALUA_TG_PT_ATTR(nonop_delay_msecs, S_IRUGO | S_IWUSR); - -/* - * trans_delay_msecs - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_trans_delay_msecs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_trans_delay_msecs_show(struct config_item *item, + char *page) { - return core_alua_show_trans_delay_msecs(tg_pt_gp, page); + return core_alua_show_trans_delay_msecs(to_tg_pt_gp(item), page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_trans_delay_msecs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_trans_delay_msecs_store(struct config_item *item, + const char *page, size_t count) { - return core_alua_store_trans_delay_msecs(tg_pt_gp, page, count); + return core_alua_store_trans_delay_msecs(to_tg_pt_gp(item), page, + count); } -SE_DEV_ALUA_TG_PT_ATTR(trans_delay_msecs, S_IRUGO | S_IWUSR); - -/* - * implicit_trans_secs - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_implicit_trans_secs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_implicit_trans_secs_show( + struct config_item *item, char *page) { - return core_alua_show_implicit_trans_secs(tg_pt_gp, page); + return core_alua_show_implicit_trans_secs(to_tg_pt_gp(item), page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_implicit_trans_secs( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_implicit_trans_secs_store( + struct config_item *item, const char *page, size_t count) { - return core_alua_store_implicit_trans_secs(tg_pt_gp, page, count); + return core_alua_store_implicit_trans_secs(to_tg_pt_gp(item), page, + count); } -SE_DEV_ALUA_TG_PT_ATTR(implicit_trans_secs, S_IRUGO | S_IWUSR); - -/* - * preferred - */ - -static ssize_t target_core_alua_tg_pt_gp_show_attr_preferred( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_preferred_show(struct config_item *item, + char *page) { - return core_alua_show_preferred_bit(tg_pt_gp, page); + return core_alua_show_preferred_bit(to_tg_pt_gp(item), page); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_preferred( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_preferred_store(struct config_item *item, + const char *page, size_t count) { - return core_alua_store_preferred_bit(tg_pt_gp, page, count); + return core_alua_store_preferred_bit(to_tg_pt_gp(item), page, count); } -SE_DEV_ALUA_TG_PT_ATTR(preferred, S_IRUGO | S_IWUSR); - -/* - * tg_pt_gp_id - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_tg_pt_gp_id( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_tg_pt_gp_id_show(struct config_item *item, + char *page) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); + if (!tg_pt_gp->tg_pt_gp_valid_id) return 0; - return sprintf(page, "%hu\n", tg_pt_gp->tg_pt_gp_id); } -static ssize_t target_core_alua_tg_pt_gp_store_attr_tg_pt_gp_id( - struct t10_alua_tg_pt_gp *tg_pt_gp, - const char *page, - size_t count) +static ssize_t target_tg_pt_gp_tg_pt_gp_id_store(struct config_item *item, + const char *page, size_t count) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); struct config_group *alua_tg_pt_gp_cg = &tg_pt_gp->tg_pt_gp_group; unsigned long tg_pt_gp_id; int ret; @@ -2902,15 +2581,10 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_tg_pt_gp_id( return count; } -SE_DEV_ALUA_TG_PT_ATTR(tg_pt_gp_id, S_IRUGO | S_IWUSR); - -/* - * members - */ -static ssize_t target_core_alua_tg_pt_gp_show_attr_members( - struct t10_alua_tg_pt_gp *tg_pt_gp, - char *page) +static ssize_t target_tg_pt_gp_members_show(struct config_item *item, + char *page) { + struct t10_alua_tg_pt_gp *tg_pt_gp = to_tg_pt_gp(item); struct se_lun *lun; ssize_t len = 0, cur_len; unsigned char buf[TG_PT_GROUP_NAME_BUF]; @@ -2942,29 +2616,42 @@ static ssize_t target_core_alua_tg_pt_gp_show_attr_members( return len; } -SE_DEV_ALUA_TG_PT_ATTR_RO(members); - -CONFIGFS_EATTR_OPS(target_core_alua_tg_pt_gp, t10_alua_tg_pt_gp, - tg_pt_gp_group); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_state); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_status); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_access_type); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_transitioning); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_offline); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_lba_dependent); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_unavailable); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_standby); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_optimized); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_support_active_nonoptimized); +CONFIGFS_ATTR(target_tg_pt_gp_, alua_write_metadata); +CONFIGFS_ATTR(target_tg_pt_gp_, nonop_delay_msecs); +CONFIGFS_ATTR(target_tg_pt_gp_, trans_delay_msecs); +CONFIGFS_ATTR(target_tg_pt_gp_, implicit_trans_secs); +CONFIGFS_ATTR(target_tg_pt_gp_, preferred); +CONFIGFS_ATTR(target_tg_pt_gp_, tg_pt_gp_id); +CONFIGFS_ATTR_RO(target_tg_pt_gp_, members); static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = { - &target_core_alua_tg_pt_gp_alua_access_state.attr, - &target_core_alua_tg_pt_gp_alua_access_status.attr, - &target_core_alua_tg_pt_gp_alua_access_type.attr, - &target_core_alua_tg_pt_gp_alua_support_transitioning.attr, - &target_core_alua_tg_pt_gp_alua_support_offline.attr, - &target_core_alua_tg_pt_gp_alua_support_lba_dependent.attr, - &target_core_alua_tg_pt_gp_alua_support_unavailable.attr, - &target_core_alua_tg_pt_gp_alua_support_standby.attr, - &target_core_alua_tg_pt_gp_alua_support_active_nonoptimized.attr, - &target_core_alua_tg_pt_gp_alua_support_active_optimized.attr, - &target_core_alua_tg_pt_gp_alua_write_metadata.attr, - &target_core_alua_tg_pt_gp_nonop_delay_msecs.attr, - &target_core_alua_tg_pt_gp_trans_delay_msecs.attr, - &target_core_alua_tg_pt_gp_implicit_trans_secs.attr, - &target_core_alua_tg_pt_gp_preferred.attr, - &target_core_alua_tg_pt_gp_tg_pt_gp_id.attr, - &target_core_alua_tg_pt_gp_members.attr, + &target_tg_pt_gp_attr_alua_access_state, + &target_tg_pt_gp_attr_alua_access_status, + &target_tg_pt_gp_attr_alua_access_type, + &target_tg_pt_gp_attr_alua_support_transitioning, + &target_tg_pt_gp_attr_alua_support_offline, + &target_tg_pt_gp_attr_alua_support_lba_dependent, + &target_tg_pt_gp_attr_alua_support_unavailable, + &target_tg_pt_gp_attr_alua_support_standby, + &target_tg_pt_gp_attr_alua_support_active_nonoptimized, + &target_tg_pt_gp_attr_alua_support_active_optimized, + &target_tg_pt_gp_attr_alua_write_metadata, + &target_tg_pt_gp_attr_nonop_delay_msecs, + &target_tg_pt_gp_attr_trans_delay_msecs, + &target_tg_pt_gp_attr_implicit_trans_secs, + &target_tg_pt_gp_attr_preferred, + &target_tg_pt_gp_attr_tg_pt_gp_id, + &target_tg_pt_gp_attr_members, NULL, }; @@ -2978,8 +2665,6 @@ static void target_core_alua_tg_pt_gp_release(struct config_item *item) static struct configfs_item_operations target_core_alua_tg_pt_gp_ops = { .release = target_core_alua_tg_pt_gp_release, - .show_attribute = target_core_alua_tg_pt_gp_attr_show, - .store_attribute = target_core_alua_tg_pt_gp_attr_store, }; static struct config_item_type target_core_alua_tg_pt_gp_cit = { @@ -3237,34 +2922,24 @@ static struct configfs_group_operations target_core_hba_group_ops = { .drop_item = target_core_drop_subdev, }; -CONFIGFS_EATTR_STRUCT(target_core_hba, se_hba); -#define SE_HBA_ATTR(_name, _mode) \ -static struct target_core_hba_attribute \ - target_core_hba_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_core_hba_show_attr_##_name, \ - target_core_hba_store_attr_##_name); -#define SE_HBA_ATTR_RO(_name) \ -static struct target_core_hba_attribute \ - target_core_hba_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_core_hba_show_attr_##_name); +static inline struct se_hba *to_hba(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_hba, hba_group); +} -static ssize_t target_core_hba_show_attr_hba_info( - struct se_hba *hba, - char *page) +static ssize_t target_hba_info_show(struct config_item *item, char *page) { + struct se_hba *hba = to_hba(item); + return sprintf(page, "HBA Index: %d plugin: %s version: %s\n", hba->hba_id, hba->backend->ops->name, TARGET_CORE_VERSION); } -SE_HBA_ATTR_RO(hba_info); - -static ssize_t target_core_hba_show_attr_hba_mode(struct se_hba *hba, - char *page) +static ssize_t target_hba_mode_show(struct config_item *item, char *page) { + struct se_hba *hba = to_hba(item); int hba_mode = 0; if (hba->hba_flags & HBA_FLAGS_PSCSI_MODE) @@ -3273,9 +2948,10 @@ static ssize_t target_core_hba_show_attr_hba_mode(struct se_hba *hba, return sprintf(page, "%d\n", hba_mode); } -static ssize_t target_core_hba_store_attr_hba_mode(struct se_hba *hba, - const char *page, size_t count) +static ssize_t target_hba_mode_store(struct config_item *item, + const char *page, size_t count) { + struct se_hba *hba = to_hba(item); unsigned long mode_flag; int ret; @@ -3304,9 +2980,8 @@ static ssize_t target_core_hba_store_attr_hba_mode(struct se_hba *hba, return count; } -SE_HBA_ATTR(hba_mode, S_IRUGO | S_IWUSR); - -CONFIGFS_EATTR_OPS(target_core_hba, se_hba, hba_group); +CONFIGFS_ATTR_RO(target_, hba_info); +CONFIGFS_ATTR(target_, hba_mode); static void target_core_hba_release(struct config_item *item) { @@ -3316,15 +2991,13 @@ static void target_core_hba_release(struct config_item *item) } static struct configfs_attribute *target_core_hba_attrs[] = { - &target_core_hba_hba_info.attr, - &target_core_hba_hba_mode.attr, + &target_attr_hba_info, + &target_attr_hba_mode, NULL, }; static struct configfs_item_operations target_core_hba_item_ops = { .release = target_core_hba_release, - .show_attribute = target_core_hba_attr_show, - .store_attribute = target_core_hba_attr_store, }; static struct config_item_type target_core_hba_cit = { diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index be42429468e2..f916d18ccb48 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -35,8 +35,6 @@ #include #include -#include -#include #include "target_core_internal.h" #include "target_core_alua.h" @@ -152,17 +150,16 @@ static int target_fabric_mappedlun_unlink( return core_dev_del_initiator_node_lun_acl(lun, lacl); } -CONFIGFS_EATTR_STRUCT(target_fabric_mappedlun, se_lun_acl); -#define TCM_MAPPEDLUN_ATTR(_name, _mode) \ -static struct target_fabric_mappedlun_attribute target_fabric_mappedlun_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_fabric_mappedlun_show_##_name, \ - target_fabric_mappedlun_store_##_name); +static struct se_lun_acl *item_to_lun_acl(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_lun_acl, + se_lun_group); +} -static ssize_t target_fabric_mappedlun_show_write_protect( - struct se_lun_acl *lacl, - char *page) +static ssize_t target_fabric_mappedlun_write_protect_show( + struct config_item *item, char *page) { + struct se_lun_acl *lacl = item_to_lun_acl(item); struct se_node_acl *se_nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t len = 0; @@ -178,11 +175,10 @@ static ssize_t target_fabric_mappedlun_show_write_protect( return len; } -static ssize_t target_fabric_mappedlun_store_write_protect( - struct se_lun_acl *lacl, - const char *page, - size_t count) +static ssize_t target_fabric_mappedlun_write_protect_store( + struct config_item *item, const char *page, size_t count) { + struct se_lun_acl *lacl = item_to_lun_acl(item); struct se_node_acl *se_nacl = lacl->se_lun_nacl; struct se_portal_group *se_tpg = se_nacl->se_tpg; unsigned long op; @@ -209,9 +205,12 @@ static ssize_t target_fabric_mappedlun_store_write_protect( } -TCM_MAPPEDLUN_ATTR(write_protect, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(target_fabric_mappedlun_, write_protect); -CONFIGFS_EATTR_OPS(target_fabric_mappedlun, se_lun_acl, se_lun_group); +static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { + &target_fabric_mappedlun_attr_write_protect, + NULL, +}; static void target_fabric_mappedlun_release(struct config_item *item) { @@ -222,15 +221,8 @@ static void target_fabric_mappedlun_release(struct config_item *item) core_dev_free_initiator_node_lun_acl(se_tpg, lacl); } -static struct configfs_attribute *target_fabric_mappedlun_attrs[] = { - &target_fabric_mappedlun_write_protect.attr, - NULL, -}; - static struct configfs_item_operations target_fabric_mappedlun_item_ops = { .release = target_fabric_mappedlun_release, - .show_attribute = target_fabric_mappedlun_attr_show, - .store_attribute = target_fabric_mappedlun_attr_store, .allow_link = target_fabric_mappedlun_link, .drop_link = target_fabric_mappedlun_unlink, }; @@ -266,49 +258,12 @@ TF_CIT_SETUP(tpg_mappedlun_stat, NULL, &target_fabric_mappedlun_stat_group_ops, /* End of tfc_tpg_mappedlun_port_cit */ -/* Start of tfc_tpg_nacl_attrib_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_nacl_attrib, se_node_acl, acl_attrib_group); - -static struct configfs_item_operations target_fabric_nacl_attrib_item_ops = { - .show_attribute = target_fabric_nacl_attrib_attr_show, - .store_attribute = target_fabric_nacl_attrib_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_nacl_attrib, &target_fabric_nacl_attrib_item_ops, NULL); - -/* End of tfc_tpg_nacl_attrib_cit */ - -/* Start of tfc_tpg_nacl_auth_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_nacl_auth, se_node_acl, acl_auth_group); - -static struct configfs_item_operations target_fabric_nacl_auth_item_ops = { - .show_attribute = target_fabric_nacl_auth_attr_show, - .store_attribute = target_fabric_nacl_auth_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_nacl_auth, &target_fabric_nacl_auth_item_ops, NULL); - -/* End of tfc_tpg_nacl_auth_cit */ - -/* Start of tfc_tpg_nacl_param_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_nacl_param, se_node_acl, acl_param_group); - -static struct configfs_item_operations target_fabric_nacl_param_item_ops = { - .show_attribute = target_fabric_nacl_param_attr_show, - .store_attribute = target_fabric_nacl_param_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_nacl_param, &target_fabric_nacl_param_item_ops, NULL); - -/* End of tfc_tpg_nacl_param_cit */ +TF_CIT_SETUP_DRV(tpg_nacl_attrib, NULL, NULL); +TF_CIT_SETUP_DRV(tpg_nacl_auth, NULL, NULL); +TF_CIT_SETUP_DRV(tpg_nacl_param, NULL, NULL); /* Start of tfc_tpg_nacl_base_cit */ -CONFIGFS_EATTR_OPS(target_fabric_nacl_base, se_node_acl, acl_group); - static struct config_group *target_fabric_make_mappedlun( struct config_group *group, const char *name) @@ -438,8 +393,6 @@ static void target_fabric_nacl_base_release(struct config_item *item) static struct configfs_item_operations target_fabric_nacl_base_item_ops = { .release = target_fabric_nacl_base_release, - .show_attribute = target_fabric_nacl_base_attr_show, - .store_attribute = target_fabric_nacl_base_attr_store, }; static struct configfs_group_operations target_fabric_nacl_base_group_ops = { @@ -540,8 +493,6 @@ TF_CIT_SETUP(tpg_nacl, NULL, &target_fabric_nacl_group_ops, NULL); /* Start of tfc_tpg_np_base_cit */ -CONFIGFS_EATTR_OPS(target_fabric_np_base, se_tpg_np, tpg_np_group); - static void target_fabric_np_base_release(struct config_item *item) { struct se_tpg_np *se_tpg_np = container_of(to_config_group(item), @@ -554,8 +505,6 @@ static void target_fabric_np_base_release(struct config_item *item) static struct configfs_item_operations target_fabric_np_base_item_ops = { .release = target_fabric_np_base_release, - .show_attribute = target_fabric_np_base_attr_show, - .store_attribute = target_fabric_np_base_attr_store, }; TF_CIT_SETUP_DRV(tpg_np_base, &target_fabric_np_base_item_ops, NULL); @@ -610,132 +559,113 @@ TF_CIT_SETUP(tpg_np, NULL, &target_fabric_np_group_ops, NULL); /* Start of tfc_tpg_port_cit */ -CONFIGFS_EATTR_STRUCT(target_fabric_port, se_lun); -#define TCM_PORT_ATTR(_name, _mode) \ -static struct target_fabric_port_attribute target_fabric_port_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_fabric_port_show_attr_##_name, \ - target_fabric_port_store_attr_##_name); - -#define TCM_PORT_ATTOR_RO(_name) \ - __CONFIGFS_EATTR_RO(_name, \ - target_fabric_port_show_attr_##_name); +static struct se_lun *item_to_lun(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_lun, + lun_group); +} -/* - * alua_tg_pt_gp - */ -static ssize_t target_fabric_port_show_attr_alua_tg_pt_gp( - struct se_lun *lun, - char *page) +static ssize_t target_fabric_port_alua_tg_pt_gp_show(struct config_item *item, + char *page) { + struct se_lun *lun = item_to_lun(item); + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_show_tg_pt_gp_info(lun, page); } -static ssize_t target_fabric_port_store_attr_alua_tg_pt_gp( - struct se_lun *lun, - const char *page, - size_t count) +static ssize_t target_fabric_port_alua_tg_pt_gp_store(struct config_item *item, + const char *page, size_t count) { + struct se_lun *lun = item_to_lun(item); + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_store_tg_pt_gp_info(lun, page, count); } -TCM_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); - -/* - * alua_tg_pt_offline - */ -static ssize_t target_fabric_port_show_attr_alua_tg_pt_offline( - struct se_lun *lun, - char *page) +static ssize_t target_fabric_port_alua_tg_pt_offline_show( + struct config_item *item, char *page) { + struct se_lun *lun = item_to_lun(item); + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_show_offline_bit(lun, page); } -static ssize_t target_fabric_port_store_attr_alua_tg_pt_offline( - struct se_lun *lun, - const char *page, - size_t count) +static ssize_t target_fabric_port_alua_tg_pt_offline_store( + struct config_item *item, const char *page, size_t count) { + struct se_lun *lun = item_to_lun(item); + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_store_offline_bit(lun, page, count); } -TCM_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); - -/* - * alua_tg_pt_status - */ -static ssize_t target_fabric_port_show_attr_alua_tg_pt_status( - struct se_lun *lun, - char *page) +static ssize_t target_fabric_port_alua_tg_pt_status_show( + struct config_item *item, char *page) { + struct se_lun *lun = item_to_lun(item); + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_show_secondary_status(lun, page); } -static ssize_t target_fabric_port_store_attr_alua_tg_pt_status( - struct se_lun *lun, - const char *page, - size_t count) +static ssize_t target_fabric_port_alua_tg_pt_status_store( + struct config_item *item, const char *page, size_t count) { + struct se_lun *lun = item_to_lun(item); + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_store_secondary_status(lun, page, count); } -TCM_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); - -/* - * alua_tg_pt_write_md - */ -static ssize_t target_fabric_port_show_attr_alua_tg_pt_write_md( - struct se_lun *lun, - char *page) +static ssize_t target_fabric_port_alua_tg_pt_write_md_show( + struct config_item *item, char *page) { + struct se_lun *lun = item_to_lun(item); + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_show_secondary_write_metadata(lun, page); } -static ssize_t target_fabric_port_store_attr_alua_tg_pt_write_md( - struct se_lun *lun, - const char *page, - size_t count) +static ssize_t target_fabric_port_alua_tg_pt_write_md_store( + struct config_item *item, const char *page, size_t count) { + struct se_lun *lun = item_to_lun(item); + if (!lun || !lun->lun_se_dev) return -ENODEV; return core_alua_store_secondary_write_metadata(lun, page, count); } -TCM_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); - +CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_gp); +CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_offline); +CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_status); +CONFIGFS_ATTR(target_fabric_port_, alua_tg_pt_write_md); static struct configfs_attribute *target_fabric_port_attrs[] = { - &target_fabric_port_alua_tg_pt_gp.attr, - &target_fabric_port_alua_tg_pt_offline.attr, - &target_fabric_port_alua_tg_pt_status.attr, - &target_fabric_port_alua_tg_pt_write_md.attr, + &target_fabric_port_attr_alua_tg_pt_gp, + &target_fabric_port_attr_alua_tg_pt_offline, + &target_fabric_port_attr_alua_tg_pt_status, + &target_fabric_port_attr_alua_tg_pt_write_md, NULL, }; -CONFIGFS_EATTR_OPS(target_fabric_port, se_lun, lun_group); - static int target_fabric_port_link( struct config_item *lun_ci, struct config_item *se_dev_ci) @@ -821,8 +751,6 @@ static void target_fabric_port_release(struct config_item *item) } static struct configfs_item_operations target_fabric_port_item_ops = { - .show_attribute = target_fabric_port_attr_show, - .store_attribute = target_fabric_port_attr_store, .release = target_fabric_port_release, .allow_link = target_fabric_port_link, .drop_link = target_fabric_port_unlink, @@ -952,50 +880,11 @@ TF_CIT_SETUP(tpg_lun, NULL, &target_fabric_lun_group_ops, NULL); /* End of tfc_tpg_lun_cit */ -/* Start of tfc_tpg_attrib_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_tpg_attrib, se_portal_group, tpg_attrib_group); - -static struct configfs_item_operations target_fabric_tpg_attrib_item_ops = { - .show_attribute = target_fabric_tpg_attrib_attr_show, - .store_attribute = target_fabric_tpg_attrib_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_attrib, &target_fabric_tpg_attrib_item_ops, NULL); - -/* End of tfc_tpg_attrib_cit */ - -/* Start of tfc_tpg_auth_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_tpg_auth, se_portal_group, tpg_auth_group); - -static struct configfs_item_operations target_fabric_tpg_auth_item_ops = { - .show_attribute = target_fabric_tpg_auth_attr_show, - .store_attribute = target_fabric_tpg_auth_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_auth, &target_fabric_tpg_auth_item_ops, NULL); - -/* End of tfc_tpg_attrib_cit */ - -/* Start of tfc_tpg_param_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_tpg_param, se_portal_group, tpg_param_group); - -static struct configfs_item_operations target_fabric_tpg_param_item_ops = { - .show_attribute = target_fabric_tpg_param_attr_show, - .store_attribute = target_fabric_tpg_param_attr_store, -}; - -TF_CIT_SETUP_DRV(tpg_param, &target_fabric_tpg_param_item_ops, NULL); - -/* End of tfc_tpg_param_cit */ +TF_CIT_SETUP_DRV(tpg_attrib, NULL, NULL); +TF_CIT_SETUP_DRV(tpg_auth, NULL, NULL); +TF_CIT_SETUP_DRV(tpg_param, NULL, NULL); /* Start of tfc_tpg_base_cit */ -/* - * For use with TF_TPG_ATTR() and TF_TPG_ATTR_RO() - */ -CONFIGFS_EATTR_OPS(target_fabric_tpg, se_portal_group, tpg_group); static void target_fabric_tpg_release(struct config_item *item) { @@ -1009,8 +898,6 @@ static void target_fabric_tpg_release(struct config_item *item) static struct configfs_item_operations target_fabric_tpg_base_item_ops = { .release = target_fabric_tpg_release, - .show_attribute = target_fabric_tpg_attr_show, - .store_attribute = target_fabric_tpg_attr_store, }; TF_CIT_SETUP_DRV(tpg_base, &target_fabric_tpg_base_item_ops, NULL); @@ -1176,33 +1063,9 @@ static struct configfs_group_operations target_fabric_wwn_group_ops = { .make_group = target_fabric_make_wwn, .drop_item = target_fabric_drop_wwn, }; -/* - * For use with TF_WWN_ATTR() and TF_WWN_ATTR_RO() - */ -CONFIGFS_EATTR_OPS(target_fabric_wwn, target_fabric_configfs, tf_group); - -static struct configfs_item_operations target_fabric_wwn_item_ops = { - .show_attribute = target_fabric_wwn_attr_show, - .store_attribute = target_fabric_wwn_attr_store, -}; - -TF_CIT_SETUP_DRV(wwn, &target_fabric_wwn_item_ops, &target_fabric_wwn_group_ops); - -/* End of tfc_wwn_cit */ - -/* Start of tfc_discovery_cit */ - -CONFIGFS_EATTR_OPS(target_fabric_discovery, target_fabric_configfs, - tf_disc_group); - -static struct configfs_item_operations target_fabric_discovery_item_ops = { - .show_attribute = target_fabric_discovery_attr_show, - .store_attribute = target_fabric_discovery_attr_store, -}; - -TF_CIT_SETUP_DRV(discovery, &target_fabric_discovery_item_ops, NULL); -/* End of tfc_discovery_cit */ +TF_CIT_SETUP_DRV(wwn, NULL, &target_fabric_wwn_group_ops); +TF_CIT_SETUP_DRV(discovery, NULL, NULL); int target_fabric_setup_cits(struct target_fabric_configfs *tf) { diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h index 99c24acfe676..dae0750c2032 100644 --- a/drivers/target/target_core_internal.h +++ b/drivers/target/target_core_internal.h @@ -87,6 +87,9 @@ void target_free_device(struct se_device *); /* target_core_configfs.c */ void target_setup_backend_cits(struct target_backend *); +/* target_core_fabric_configfs.c */ +int target_fabric_setup_cits(struct target_fabric_configfs *); + /* target_core_fabric_lib.c */ int target_get_pr_transport_id_len(struct se_node_acl *nacl, struct t10_pr_registration *pr_reg, int *format_code); diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c index 20ed5d2e151a..273c72b2b83d 100644 --- a/drivers/target/target_core_stat.c +++ b/drivers/target/target_core_stat.c @@ -37,7 +37,6 @@ #include #include #include -#include #include "target_core_internal.h" @@ -55,75 +54,49 @@ * SCSI Device Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_dev, se_dev_stat_grps); -#define DEV_STAT_SCSI_DEV_ATTR(_name, _mode) \ -static struct target_stat_scsi_dev_attribute \ - target_stat_scsi_dev_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_dev_show_attr_##_name, \ - target_stat_scsi_dev_store_attr_##_name); - -#define DEV_STAT_SCSI_DEV_ATTR_RO(_name) \ -static struct target_stat_scsi_dev_attribute \ - target_stat_scsi_dev_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_dev_show_attr_##_name); +static struct se_device *to_stat_dev(struct config_item *item) +{ + struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), + struct se_dev_stat_grps, scsi_dev_group); + return container_of(sgrps, struct se_device, dev_stat_grps); +} -static ssize_t target_stat_scsi_dev_show_attr_inst( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_inst_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - struct se_hba *hba = dev->se_hba; + struct se_hba *hba = to_stat_dev(item)->se_hba; return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); } -DEV_STAT_SCSI_DEV_ATTR_RO(inst); -static ssize_t target_stat_scsi_dev_show_attr_indx( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_indx_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + return snprintf(page, PAGE_SIZE, "%u\n", to_stat_dev(item)->dev_index); } -DEV_STAT_SCSI_DEV_ATTR_RO(indx); -static ssize_t target_stat_scsi_dev_show_attr_role( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_role_show(struct config_item *item, char *page) { return snprintf(page, PAGE_SIZE, "Target\n"); } -DEV_STAT_SCSI_DEV_ATTR_RO(role); -static ssize_t target_stat_scsi_dev_show_attr_ports( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_ports_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", dev->export_count); + return snprintf(page, PAGE_SIZE, "%u\n", to_stat_dev(item)->export_count); } -DEV_STAT_SCSI_DEV_ATTR_RO(ports); -CONFIGFS_EATTR_OPS(target_stat_scsi_dev, se_dev_stat_grps, scsi_dev_group); +CONFIGFS_ATTR_RO(target_stat_, inst); +CONFIGFS_ATTR_RO(target_stat_, indx); +CONFIGFS_ATTR_RO(target_stat_, role); +CONFIGFS_ATTR_RO(target_stat_, ports); static struct configfs_attribute *target_stat_scsi_dev_attrs[] = { - &target_stat_scsi_dev_inst.attr, - &target_stat_scsi_dev_indx.attr, - &target_stat_scsi_dev_role.attr, - &target_stat_scsi_dev_ports.attr, + &target_stat_attr_inst, + &target_stat_attr_indx, + &target_stat_attr_role, + &target_stat_attr_ports, NULL, }; -static struct configfs_item_operations target_stat_scsi_dev_attrib_ops = { - .show_attribute = target_stat_scsi_dev_attr_show, - .store_attribute = target_stat_scsi_dev_attr_store, -}; - static struct config_item_type target_stat_scsi_dev_cit = { - .ct_item_ops = &target_stat_scsi_dev_attrib_ops, .ct_attrs = target_stat_scsi_dev_attrs, .ct_owner = THIS_MODULE, }; @@ -131,109 +104,78 @@ static struct config_item_type target_stat_scsi_dev_cit = { /* * SCSI Target Device Table */ +static struct se_device *to_stat_tgt_dev(struct config_item *item) +{ + struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), + struct se_dev_stat_grps, scsi_tgt_dev_group); + return container_of(sgrps, struct se_device, dev_stat_grps); +} -CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_dev, se_dev_stat_grps); -#define DEV_STAT_SCSI_TGT_DEV_ATTR(_name, _mode) \ -static struct target_stat_scsi_tgt_dev_attribute \ - target_stat_scsi_tgt_dev_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_tgt_dev_show_attr_##_name, \ - target_stat_scsi_tgt_dev_store_attr_##_name); - -#define DEV_STAT_SCSI_TGT_DEV_ATTR_RO(_name) \ -static struct target_stat_scsi_tgt_dev_attribute \ - target_stat_scsi_tgt_dev_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_tgt_dev_show_attr_##_name); - -static ssize_t target_stat_scsi_tgt_dev_show_attr_inst( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_inst_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - struct se_hba *hba = dev->se_hba; + struct se_hba *hba = to_stat_tgt_dev(item)->se_hba; return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(inst); -static ssize_t target_stat_scsi_tgt_dev_show_attr_indx( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_indx_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + return snprintf(page, PAGE_SIZE, "%u\n", to_stat_tgt_dev(item)->dev_index); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(indx); -static ssize_t target_stat_scsi_tgt_dev_show_attr_num_lus( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_num_lus_show(struct config_item *item, + char *page) { return snprintf(page, PAGE_SIZE, "%u\n", LU_COUNT); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(num_lus); -static ssize_t target_stat_scsi_tgt_dev_show_attr_status( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_status_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - - if (dev->export_count) + if (to_stat_tgt_dev(item)->export_count) return snprintf(page, PAGE_SIZE, "activated"); else return snprintf(page, PAGE_SIZE, "deactivated"); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(status); -static ssize_t target_stat_scsi_tgt_dev_show_attr_non_access_lus( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_non_access_lus_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); int non_accessible_lus; - if (dev->export_count) + if (to_stat_tgt_dev(item)->export_count) non_accessible_lus = 0; else non_accessible_lus = 1; return snprintf(page, PAGE_SIZE, "%u\n", non_accessible_lus); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(non_access_lus); -static ssize_t target_stat_scsi_tgt_dev_show_attr_resets( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_tgt_resets_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - return snprintf(page, PAGE_SIZE, "%lu\n", - atomic_long_read(&dev->num_resets)); + atomic_long_read(&to_stat_tgt_dev(item)->num_resets)); } -DEV_STAT_SCSI_TGT_DEV_ATTR_RO(resets); - -CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_dev, se_dev_stat_grps, scsi_tgt_dev_group); +CONFIGFS_ATTR_RO(target_stat_tgt_, inst); +CONFIGFS_ATTR_RO(target_stat_tgt_, indx); +CONFIGFS_ATTR_RO(target_stat_tgt_, num_lus); +CONFIGFS_ATTR_RO(target_stat_tgt_, status); +CONFIGFS_ATTR_RO(target_stat_tgt_, non_access_lus); +CONFIGFS_ATTR_RO(target_stat_tgt_, resets); static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = { - &target_stat_scsi_tgt_dev_inst.attr, - &target_stat_scsi_tgt_dev_indx.attr, - &target_stat_scsi_tgt_dev_num_lus.attr, - &target_stat_scsi_tgt_dev_status.attr, - &target_stat_scsi_tgt_dev_non_access_lus.attr, - &target_stat_scsi_tgt_dev_resets.attr, + &target_stat_tgt_attr_inst, + &target_stat_tgt_attr_indx, + &target_stat_tgt_attr_num_lus, + &target_stat_tgt_attr_status, + &target_stat_tgt_attr_non_access_lus, + &target_stat_tgt_attr_resets, NULL, }; -static struct configfs_item_operations target_stat_scsi_tgt_dev_attrib_ops = { - .show_attribute = target_stat_scsi_tgt_dev_attr_show, - .store_attribute = target_stat_scsi_tgt_dev_attr_store, -}; - static struct config_item_type target_stat_scsi_tgt_dev_cit = { - .ct_item_ops = &target_stat_scsi_tgt_dev_attrib_ops, .ct_attrs = target_stat_scsi_tgt_dev_attrs, .ct_owner = THIS_MODULE, }; @@ -242,72 +184,50 @@ static struct config_item_type target_stat_scsi_tgt_dev_cit = { * SCSI Logical Unit Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_lu, se_dev_stat_grps); -#define DEV_STAT_SCSI_LU_ATTR(_name, _mode) \ -static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_lu_show_attr_##_name, \ - target_stat_scsi_lu_store_attr_##_name); - -#define DEV_STAT_SCSI_LU_ATTR_RO(_name) \ -static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_lu_show_attr_##_name); +static struct se_device *to_stat_lu_dev(struct config_item *item) +{ + struct se_dev_stat_grps *sgrps = container_of(to_config_group(item), + struct se_dev_stat_grps, scsi_lu_group); + return container_of(sgrps, struct se_device, dev_stat_grps); +} -static ssize_t target_stat_scsi_lu_show_attr_inst( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_inst_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - struct se_hba *hba = dev->se_hba; + struct se_hba *hba = to_stat_lu_dev(item)->se_hba; return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index); } -DEV_STAT_SCSI_LU_ATTR_RO(inst); -static ssize_t target_stat_scsi_lu_show_attr_dev( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_dev_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); - - return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index); + return snprintf(page, PAGE_SIZE, "%u\n", + to_stat_lu_dev(item)->dev_index); } -DEV_STAT_SCSI_LU_ATTR_RO(dev); -static ssize_t target_stat_scsi_lu_show_attr_indx( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_indx_show(struct config_item *item, char *page) { return snprintf(page, PAGE_SIZE, "%u\n", SCSI_LU_INDEX); } -DEV_STAT_SCSI_LU_ATTR_RO(indx); -static ssize_t target_stat_scsi_lu_show_attr_lun( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_lun_show(struct config_item *item, char *page) { /* FIXME: scsiLuDefaultLun */ return snprintf(page, PAGE_SIZE, "%llu\n", (unsigned long long)0); } -DEV_STAT_SCSI_LU_ATTR_RO(lun); -static ssize_t target_stat_scsi_lu_show_attr_lu_name( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_lu_name_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuWwnName */ return snprintf(page, PAGE_SIZE, "%s\n", (strlen(dev->t10_wwn.unit_serial)) ? dev->t10_wwn.unit_serial : "None"); } -DEV_STAT_SCSI_LU_ATTR_RO(lu_name); -static ssize_t target_stat_scsi_lu_show_attr_vend( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_vend_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); int i; char str[sizeof(dev->t10_wwn.vendor)+1]; @@ -318,13 +238,10 @@ static ssize_t target_stat_scsi_lu_show_attr_vend( str[i] = '\0'; return snprintf(page, PAGE_SIZE, "%s\n", str); } -DEV_STAT_SCSI_LU_ATTR_RO(vend); -static ssize_t target_stat_scsi_lu_show_attr_prod( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_prod_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); int i; char str[sizeof(dev->t10_wwn.model)+1]; @@ -335,13 +252,10 @@ static ssize_t target_stat_scsi_lu_show_attr_prod( str[i] = '\0'; return snprintf(page, PAGE_SIZE, "%s\n", str); } -DEV_STAT_SCSI_LU_ATTR_RO(prod); -static ssize_t target_stat_scsi_lu_show_attr_rev( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_rev_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); int i; char str[sizeof(dev->t10_wwn.revision)+1]; @@ -352,146 +266,137 @@ static ssize_t target_stat_scsi_lu_show_attr_rev( str[i] = '\0'; return snprintf(page, PAGE_SIZE, "%s\n", str); } -DEV_STAT_SCSI_LU_ATTR_RO(rev); -static ssize_t target_stat_scsi_lu_show_attr_dev_type( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_dev_type_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuPeripheralType */ return snprintf(page, PAGE_SIZE, "%u\n", dev->transport->get_device_type(dev)); } -DEV_STAT_SCSI_LU_ATTR_RO(dev_type); -static ssize_t target_stat_scsi_lu_show_attr_status( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_status_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuStatus */ return snprintf(page, PAGE_SIZE, "%s\n", (dev->export_count) ? "available" : "notavailable"); } -DEV_STAT_SCSI_LU_ATTR_RO(status); -static ssize_t target_stat_scsi_lu_show_attr_state_bit( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_state_bit_show(struct config_item *item, + char *page) { /* scsiLuState */ return snprintf(page, PAGE_SIZE, "exposed\n"); } -DEV_STAT_SCSI_LU_ATTR_RO(state_bit); -static ssize_t target_stat_scsi_lu_show_attr_num_cmds( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_num_cmds_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuNumCommands */ return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&dev->num_cmds)); } -DEV_STAT_SCSI_LU_ATTR_RO(num_cmds); -static ssize_t target_stat_scsi_lu_show_attr_read_mbytes( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_read_mbytes_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuReadMegaBytes */ return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&dev->read_bytes) >> 20); } -DEV_STAT_SCSI_LU_ATTR_RO(read_mbytes); -static ssize_t target_stat_scsi_lu_show_attr_write_mbytes( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_write_mbytes_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuWrittenMegaBytes */ return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&dev->write_bytes) >> 20); } -DEV_STAT_SCSI_LU_ATTR_RO(write_mbytes); -static ssize_t target_stat_scsi_lu_show_attr_resets( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_resets_show(struct config_item *item, char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuInResets */ - return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&dev->num_resets)); + return snprintf(page, PAGE_SIZE, "%lu\n", + atomic_long_read(&dev->num_resets)); } -DEV_STAT_SCSI_LU_ATTR_RO(resets); -static ssize_t target_stat_scsi_lu_show_attr_full_stat( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_full_stat_show(struct config_item *item, + char *page) { /* FIXME: scsiLuOutTaskSetFullStatus */ return snprintf(page, PAGE_SIZE, "%u\n", 0); } -DEV_STAT_SCSI_LU_ATTR_RO(full_stat); -static ssize_t target_stat_scsi_lu_show_attr_hs_num_cmds( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_hs_num_cmds_show(struct config_item *item, + char *page) { /* FIXME: scsiLuHSInCommands */ return snprintf(page, PAGE_SIZE, "%u\n", 0); } -DEV_STAT_SCSI_LU_ATTR_RO(hs_num_cmds); -static ssize_t target_stat_scsi_lu_show_attr_creation_time( - struct se_dev_stat_grps *sgrps, char *page) +static ssize_t target_stat_lu_creation_time_show(struct config_item *item, + char *page) { - struct se_device *dev = - container_of(sgrps, struct se_device, dev_stat_grps); + struct se_device *dev = to_stat_lu_dev(item); /* scsiLuCreationTime */ return snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)dev->creation_time - INITIAL_JIFFIES) * 100 / HZ)); } -DEV_STAT_SCSI_LU_ATTR_RO(creation_time); -CONFIGFS_EATTR_OPS(target_stat_scsi_lu, se_dev_stat_grps, scsi_lu_group); +CONFIGFS_ATTR_RO(target_stat_lu_, inst); +CONFIGFS_ATTR_RO(target_stat_lu_, dev); +CONFIGFS_ATTR_RO(target_stat_lu_, indx); +CONFIGFS_ATTR_RO(target_stat_lu_, lun); +CONFIGFS_ATTR_RO(target_stat_lu_, lu_name); +CONFIGFS_ATTR_RO(target_stat_lu_, vend); +CONFIGFS_ATTR_RO(target_stat_lu_, prod); +CONFIGFS_ATTR_RO(target_stat_lu_, rev); +CONFIGFS_ATTR_RO(target_stat_lu_, dev_type); +CONFIGFS_ATTR_RO(target_stat_lu_, status); +CONFIGFS_ATTR_RO(target_stat_lu_, state_bit); +CONFIGFS_ATTR_RO(target_stat_lu_, num_cmds); +CONFIGFS_ATTR_RO(target_stat_lu_, read_mbytes); +CONFIGFS_ATTR_RO(target_stat_lu_, write_mbytes); +CONFIGFS_ATTR_RO(target_stat_lu_, resets); +CONFIGFS_ATTR_RO(target_stat_lu_, full_stat); +CONFIGFS_ATTR_RO(target_stat_lu_, hs_num_cmds); +CONFIGFS_ATTR_RO(target_stat_lu_, creation_time); static struct configfs_attribute *target_stat_scsi_lu_attrs[] = { - &target_stat_scsi_lu_inst.attr, - &target_stat_scsi_lu_dev.attr, - &target_stat_scsi_lu_indx.attr, - &target_stat_scsi_lu_lun.attr, - &target_stat_scsi_lu_lu_name.attr, - &target_stat_scsi_lu_vend.attr, - &target_stat_scsi_lu_prod.attr, - &target_stat_scsi_lu_rev.attr, - &target_stat_scsi_lu_dev_type.attr, - &target_stat_scsi_lu_status.attr, - &target_stat_scsi_lu_state_bit.attr, - &target_stat_scsi_lu_num_cmds.attr, - &target_stat_scsi_lu_read_mbytes.attr, - &target_stat_scsi_lu_write_mbytes.attr, - &target_stat_scsi_lu_resets.attr, - &target_stat_scsi_lu_full_stat.attr, - &target_stat_scsi_lu_hs_num_cmds.attr, - &target_stat_scsi_lu_creation_time.attr, + &target_stat_lu_attr_inst, + &target_stat_lu_attr_dev, + &target_stat_lu_attr_indx, + &target_stat_lu_attr_lun, + &target_stat_lu_attr_lu_name, + &target_stat_lu_attr_vend, + &target_stat_lu_attr_prod, + &target_stat_lu_attr_rev, + &target_stat_lu_attr_dev_type, + &target_stat_lu_attr_status, + &target_stat_lu_attr_state_bit, + &target_stat_lu_attr_num_cmds, + &target_stat_lu_attr_read_mbytes, + &target_stat_lu_attr_write_mbytes, + &target_stat_lu_attr_resets, + &target_stat_lu_attr_full_stat, + &target_stat_lu_attr_hs_num_cmds, + &target_stat_lu_attr_creation_time, NULL, }; -static struct configfs_item_operations target_stat_scsi_lu_attrib_ops = { - .show_attribute = target_stat_scsi_lu_attr_show, - .store_attribute = target_stat_scsi_lu_attr_store, -}; - static struct config_item_type target_stat_scsi_lu_cit = { - .ct_item_ops = &target_stat_scsi_lu_attrib_ops, .ct_attrs = target_stat_scsi_lu_attrs, .ct_owner = THIS_MODULE, }; @@ -521,24 +426,16 @@ void target_stat_setup_dev_default_groups(struct se_device *dev) * SCSI Port Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_port, se_port_stat_grps); -#define DEV_STAT_SCSI_PORT_ATTR(_name, _mode) \ -static struct target_stat_scsi_port_attribute \ - target_stat_scsi_port_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_port_show_attr_##_name, \ - target_stat_scsi_port_store_attr_##_name); - -#define DEV_STAT_SCSI_PORT_ATTR_RO(_name) \ -static struct target_stat_scsi_port_attribute \ - target_stat_scsi_port_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_port_show_attr_##_name); +static struct se_lun *to_stat_port(struct config_item *item) +{ + struct se_port_stat_grps *pgrps = container_of(to_config_group(item), + struct se_port_stat_grps, scsi_port_group); + return container_of(pgrps, struct se_lun, port_stat_grps); +} -static ssize_t target_stat_scsi_port_show_attr_inst( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_port_inst_show(struct config_item *item, char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -549,12 +446,10 @@ static ssize_t target_stat_scsi_port_show_attr_inst( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_PORT_ATTR_RO(inst); -static ssize_t target_stat_scsi_port_show_attr_dev( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_port_dev_show(struct config_item *item, char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -565,12 +460,10 @@ static ssize_t target_stat_scsi_port_show_attr_dev( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_PORT_ATTR_RO(dev); -static ssize_t target_stat_scsi_port_show_attr_indx( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_port_indx_show(struct config_item *item, char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -581,12 +474,10 @@ static ssize_t target_stat_scsi_port_show_attr_indx( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_PORT_ATTR_RO(indx); -static ssize_t target_stat_scsi_port_show_attr_role( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_port_role_show(struct config_item *item, char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -597,12 +488,11 @@ static ssize_t target_stat_scsi_port_show_attr_role( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_PORT_ATTR_RO(role); -static ssize_t target_stat_scsi_port_show_attr_busy_count( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_port_busy_count_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -615,26 +505,23 @@ static ssize_t target_stat_scsi_port_show_attr_busy_count( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_PORT_ATTR_RO(busy_count); -CONFIGFS_EATTR_OPS(target_stat_scsi_port, se_port_stat_grps, scsi_port_group); +CONFIGFS_ATTR_RO(target_stat_port_, inst); +CONFIGFS_ATTR_RO(target_stat_port_, dev); +CONFIGFS_ATTR_RO(target_stat_port_, indx); +CONFIGFS_ATTR_RO(target_stat_port_, role); +CONFIGFS_ATTR_RO(target_stat_port_, busy_count); static struct configfs_attribute *target_stat_scsi_port_attrs[] = { - &target_stat_scsi_port_inst.attr, - &target_stat_scsi_port_dev.attr, - &target_stat_scsi_port_indx.attr, - &target_stat_scsi_port_role.attr, - &target_stat_scsi_port_busy_count.attr, + &target_stat_port_attr_inst, + &target_stat_port_attr_dev, + &target_stat_port_attr_indx, + &target_stat_port_attr_role, + &target_stat_port_attr_busy_count, NULL, }; -static struct configfs_item_operations target_stat_scsi_port_attrib_ops = { - .show_attribute = target_stat_scsi_port_attr_show, - .store_attribute = target_stat_scsi_port_attr_store, -}; - static struct config_item_type target_stat_scsi_port_cit = { - .ct_item_ops = &target_stat_scsi_port_attrib_ops, .ct_attrs = target_stat_scsi_port_attrs, .ct_owner = THIS_MODULE, }; @@ -642,24 +529,17 @@ static struct config_item_type target_stat_scsi_port_cit = { /* * SCSI Target Port Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_port, se_port_stat_grps); -#define DEV_STAT_SCSI_TGT_PORT_ATTR(_name, _mode) \ -static struct target_stat_scsi_tgt_port_attribute \ - target_stat_scsi_tgt_port_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_tgt_port_show_attr_##_name, \ - target_stat_scsi_tgt_port_store_attr_##_name); - -#define DEV_STAT_SCSI_TGT_PORT_ATTR_RO(_name) \ -static struct target_stat_scsi_tgt_port_attribute \ - target_stat_scsi_tgt_port_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_tgt_port_show_attr_##_name); - -static ssize_t target_stat_scsi_tgt_port_show_attr_inst( - struct se_port_stat_grps *pgrps, char *page) -{ - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); +static struct se_lun *to_stat_tgt_port(struct config_item *item) +{ + struct se_port_stat_grps *pgrps = container_of(to_config_group(item), + struct se_port_stat_grps, scsi_tgt_port_group); + return container_of(pgrps, struct se_lun, port_stat_grps); +} + +static ssize_t target_stat_tgt_port_inst_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_stat_tgt_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -670,12 +550,11 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_inst( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(inst); -static ssize_t target_stat_scsi_tgt_port_show_attr_dev( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_dev_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_tgt_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -686,12 +565,11 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_dev( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(dev); -static ssize_t target_stat_scsi_tgt_port_show_attr_indx( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_indx_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_tgt_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -702,12 +580,11 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_indx( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(indx); -static ssize_t target_stat_scsi_tgt_port_show_attr_name( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_name_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_tgt_port(item); struct se_portal_group *tpg = lun->lun_tpg; struct se_device *dev; ssize_t ret = -ENODEV; @@ -721,12 +598,11 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_name( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(name); -static ssize_t target_stat_scsi_tgt_port_show_attr_port_index( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_port_index_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_tgt_port(item); struct se_portal_group *tpg = lun->lun_tpg; struct se_device *dev; ssize_t ret = -ENODEV; @@ -740,12 +616,11 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_port_index( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(port_index); -static ssize_t target_stat_scsi_tgt_port_show_attr_in_cmds( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_in_cmds_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_tgt_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -757,12 +632,11 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_in_cmds( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(in_cmds); -static ssize_t target_stat_scsi_tgt_port_show_attr_write_mbytes( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_write_mbytes_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_tgt_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -774,12 +648,11 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_write_mbytes( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(write_mbytes); -static ssize_t target_stat_scsi_tgt_port_show_attr_read_mbytes( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_read_mbytes_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_tgt_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -791,12 +664,11 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_read_mbytes( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(read_mbytes); -static ssize_t target_stat_scsi_tgt_port_show_attr_hs_in_cmds( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_tgt_port_hs_in_cmds_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_stat_tgt_port(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -809,57 +681,49 @@ static ssize_t target_stat_scsi_tgt_port_show_attr_hs_in_cmds( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TGT_PORT_ATTR_RO(hs_in_cmds); -CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_port, se_port_stat_grps, - scsi_tgt_port_group); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, inst); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, dev); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, indx); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, name); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, port_index); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, in_cmds); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, write_mbytes); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, read_mbytes); +CONFIGFS_ATTR_RO(target_stat_tgt_port_, hs_in_cmds); static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = { - &target_stat_scsi_tgt_port_inst.attr, - &target_stat_scsi_tgt_port_dev.attr, - &target_stat_scsi_tgt_port_indx.attr, - &target_stat_scsi_tgt_port_name.attr, - &target_stat_scsi_tgt_port_port_index.attr, - &target_stat_scsi_tgt_port_in_cmds.attr, - &target_stat_scsi_tgt_port_write_mbytes.attr, - &target_stat_scsi_tgt_port_read_mbytes.attr, - &target_stat_scsi_tgt_port_hs_in_cmds.attr, + &target_stat_tgt_port_attr_inst, + &target_stat_tgt_port_attr_dev, + &target_stat_tgt_port_attr_indx, + &target_stat_tgt_port_attr_name, + &target_stat_tgt_port_attr_port_index, + &target_stat_tgt_port_attr_in_cmds, + &target_stat_tgt_port_attr_write_mbytes, + &target_stat_tgt_port_attr_read_mbytes, + &target_stat_tgt_port_attr_hs_in_cmds, NULL, }; -static struct configfs_item_operations target_stat_scsi_tgt_port_attrib_ops = { - .show_attribute = target_stat_scsi_tgt_port_attr_show, - .store_attribute = target_stat_scsi_tgt_port_attr_store, -}; - static struct config_item_type target_stat_scsi_tgt_port_cit = { - .ct_item_ops = &target_stat_scsi_tgt_port_attrib_ops, .ct_attrs = target_stat_scsi_tgt_port_attrs, .ct_owner = THIS_MODULE, }; /* * SCSI Transport Table -o */ - -CONFIGFS_EATTR_STRUCT(target_stat_scsi_transport, se_port_stat_grps); -#define DEV_STAT_SCSI_TRANSPORT_ATTR(_name, _mode) \ -static struct target_stat_scsi_transport_attribute \ - target_stat_scsi_transport_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_transport_show_attr_##_name, \ - target_stat_scsi_transport_store_attr_##_name); - -#define DEV_STAT_SCSI_TRANSPORT_ATTR_RO(_name) \ -static struct target_stat_scsi_transport_attribute \ - target_stat_scsi_transport_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_transport_show_attr_##_name); - -static ssize_t target_stat_scsi_transport_show_attr_inst( - struct se_port_stat_grps *pgrps, char *page) -{ - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + */ +static struct se_lun *to_transport_stat(struct config_item *item) +{ + struct se_port_stat_grps *pgrps = container_of(to_config_group(item), + struct se_port_stat_grps, scsi_transport_group); + return container_of(pgrps, struct se_lun, port_stat_grps); +} + +static ssize_t target_stat_transport_inst_show(struct config_item *item, + char *page) +{ + struct se_lun *lun = to_transport_stat(item); struct se_device *dev; ssize_t ret = -ENODEV; @@ -870,12 +734,11 @@ static ssize_t target_stat_scsi_transport_show_attr_inst( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TRANSPORT_ATTR_RO(inst); -static ssize_t target_stat_scsi_transport_show_attr_device( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_transport_device_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_transport_stat(item); struct se_device *dev; struct se_portal_group *tpg = lun->lun_tpg; ssize_t ret = -ENODEV; @@ -890,12 +753,11 @@ static ssize_t target_stat_scsi_transport_show_attr_device( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TRANSPORT_ATTR_RO(device); -static ssize_t target_stat_scsi_transport_show_attr_indx( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_transport_indx_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_transport_stat(item); struct se_device *dev; struct se_portal_group *tpg = lun->lun_tpg; ssize_t ret = -ENODEV; @@ -908,12 +770,11 @@ static ssize_t target_stat_scsi_transport_show_attr_indx( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TRANSPORT_ATTR_RO(indx); -static ssize_t target_stat_scsi_transport_show_attr_dev_name( - struct se_port_stat_grps *pgrps, char *page) +static ssize_t target_stat_transport_dev_name_show(struct config_item *item, + char *page) { - struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps); + struct se_lun *lun = to_transport_stat(item); struct se_device *dev; struct se_portal_group *tpg = lun->lun_tpg; struct t10_wwn *wwn; @@ -932,26 +793,21 @@ static ssize_t target_stat_scsi_transport_show_attr_dev_name( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_TRANSPORT_ATTR_RO(dev_name); -CONFIGFS_EATTR_OPS(target_stat_scsi_transport, se_port_stat_grps, - scsi_transport_group); +CONFIGFS_ATTR_RO(target_stat_transport_, inst); +CONFIGFS_ATTR_RO(target_stat_transport_, device); +CONFIGFS_ATTR_RO(target_stat_transport_, indx); +CONFIGFS_ATTR_RO(target_stat_transport_, dev_name); static struct configfs_attribute *target_stat_scsi_transport_attrs[] = { - &target_stat_scsi_transport_inst.attr, - &target_stat_scsi_transport_device.attr, - &target_stat_scsi_transport_indx.attr, - &target_stat_scsi_transport_dev_name.attr, + &target_stat_transport_attr_inst, + &target_stat_transport_attr_device, + &target_stat_transport_attr_indx, + &target_stat_transport_attr_dev_name, NULL, }; -static struct configfs_item_operations target_stat_scsi_transport_attrib_ops = { - .show_attribute = target_stat_scsi_transport_attr_show, - .store_attribute = target_stat_scsi_transport_attr_store, -}; - static struct config_item_type target_stat_scsi_transport_cit = { - .ct_item_ops = &target_stat_scsi_transport_attrib_ops, .ct_attrs = target_stat_scsi_transport_attrs, .ct_owner = THIS_MODULE, }; @@ -981,25 +837,17 @@ void target_stat_setup_port_default_groups(struct se_lun *lun) * SCSI Authorized Initiator Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_auth_intr, se_ml_stat_grps); -#define DEV_STAT_SCSI_AUTH_INTR_ATTR(_name, _mode) \ -static struct target_stat_scsi_auth_intr_attribute \ - target_stat_scsi_auth_intr_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_auth_intr_show_attr_##_name, \ - target_stat_scsi_auth_intr_store_attr_##_name); - -#define DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(_name) \ -static struct target_stat_scsi_auth_intr_attribute \ - target_stat_scsi_auth_intr_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_auth_intr_show_attr_##_name); - -static ssize_t target_stat_scsi_auth_intr_show_attr_inst( - struct se_ml_stat_grps *lgrps, char *page) -{ - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); +static struct se_lun_acl *auth_to_lacl(struct config_item *item) +{ + struct se_ml_stat_grps *lgrps = container_of(to_config_group(item), + struct se_ml_stat_grps, scsi_auth_intr_group); + return container_of(lgrps, struct se_lun_acl, ml_stat_grps); +} + +static ssize_t target_stat_auth_inst_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_portal_group *tpg; @@ -1018,13 +866,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_inst( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(inst); -static ssize_t target_stat_scsi_auth_intr_show_attr_dev( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_dev_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_lun *lun; @@ -1042,13 +888,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_dev( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev); -static ssize_t target_stat_scsi_auth_intr_show_attr_port( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_port_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_portal_group *tpg; @@ -1066,13 +910,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_port( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(port); -static ssize_t target_stat_scsi_auth_intr_show_attr_indx( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_indx_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1088,13 +930,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_indx( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(indx); -static ssize_t target_stat_scsi_auth_intr_show_attr_dev_or_port( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_dev_or_port_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1110,13 +950,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_dev_or_port( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev_or_port); -static ssize_t target_stat_scsi_auth_intr_show_attr_intr_name( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_intr_name_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1132,13 +970,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_intr_name( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(intr_name); -static ssize_t target_stat_scsi_auth_intr_show_attr_map_indx( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_map_indx_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1154,13 +990,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_map_indx( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(map_indx); -static ssize_t target_stat_scsi_auth_intr_show_attr_att_count( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_att_count_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1176,13 +1010,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_att_count( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(att_count); -static ssize_t target_stat_scsi_auth_intr_show_attr_num_cmds( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_num_cmds_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1199,13 +1031,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_num_cmds( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(num_cmds); -static ssize_t target_stat_scsi_auth_intr_show_attr_read_mbytes( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_read_mbytes_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1222,13 +1052,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_read_mbytes( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(read_mbytes); -static ssize_t target_stat_scsi_auth_intr_show_attr_write_mbytes( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_write_mbytes_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1245,13 +1073,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_write_mbytes( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(write_mbytes); -static ssize_t target_stat_scsi_auth_intr_show_attr_hs_num_cmds( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_hs_num_cmds_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1267,13 +1093,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_hs_num_cmds( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(hs_num_cmds); -static ssize_t target_stat_scsi_auth_intr_show_attr_creation_time( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_creation_time_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1290,13 +1114,11 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_creation_time( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(creation_time); -static ssize_t target_stat_scsi_auth_intr_show_attr_row_status( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_auth_row_status_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = auth_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1312,36 +1134,41 @@ static ssize_t target_stat_scsi_auth_intr_show_attr_row_status( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(row_status); -CONFIGFS_EATTR_OPS(target_stat_scsi_auth_intr, se_ml_stat_grps, - scsi_auth_intr_group); +CONFIGFS_ATTR_RO(target_stat_auth_, inst); +CONFIGFS_ATTR_RO(target_stat_auth_, dev); +CONFIGFS_ATTR_RO(target_stat_auth_, port); +CONFIGFS_ATTR_RO(target_stat_auth_, indx); +CONFIGFS_ATTR_RO(target_stat_auth_, dev_or_port); +CONFIGFS_ATTR_RO(target_stat_auth_, intr_name); +CONFIGFS_ATTR_RO(target_stat_auth_, map_indx); +CONFIGFS_ATTR_RO(target_stat_auth_, att_count); +CONFIGFS_ATTR_RO(target_stat_auth_, num_cmds); +CONFIGFS_ATTR_RO(target_stat_auth_, read_mbytes); +CONFIGFS_ATTR_RO(target_stat_auth_, write_mbytes); +CONFIGFS_ATTR_RO(target_stat_auth_, hs_num_cmds); +CONFIGFS_ATTR_RO(target_stat_auth_, creation_time); +CONFIGFS_ATTR_RO(target_stat_auth_, row_status); static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = { - &target_stat_scsi_auth_intr_inst.attr, - &target_stat_scsi_auth_intr_dev.attr, - &target_stat_scsi_auth_intr_port.attr, - &target_stat_scsi_auth_intr_indx.attr, - &target_stat_scsi_auth_intr_dev_or_port.attr, - &target_stat_scsi_auth_intr_intr_name.attr, - &target_stat_scsi_auth_intr_map_indx.attr, - &target_stat_scsi_auth_intr_att_count.attr, - &target_stat_scsi_auth_intr_num_cmds.attr, - &target_stat_scsi_auth_intr_read_mbytes.attr, - &target_stat_scsi_auth_intr_write_mbytes.attr, - &target_stat_scsi_auth_intr_hs_num_cmds.attr, - &target_stat_scsi_auth_intr_creation_time.attr, - &target_stat_scsi_auth_intr_row_status.attr, + &target_stat_auth_attr_inst, + &target_stat_auth_attr_dev, + &target_stat_auth_attr_port, + &target_stat_auth_attr_indx, + &target_stat_auth_attr_dev_or_port, + &target_stat_auth_attr_intr_name, + &target_stat_auth_attr_map_indx, + &target_stat_auth_attr_att_count, + &target_stat_auth_attr_num_cmds, + &target_stat_auth_attr_read_mbytes, + &target_stat_auth_attr_write_mbytes, + &target_stat_auth_attr_hs_num_cmds, + &target_stat_auth_attr_creation_time, + &target_stat_auth_attr_row_status, NULL, }; -static struct configfs_item_operations target_stat_scsi_auth_intr_attrib_ops = { - .show_attribute = target_stat_scsi_auth_intr_attr_show, - .store_attribute = target_stat_scsi_auth_intr_attr_store, -}; - static struct config_item_type target_stat_scsi_auth_intr_cit = { - .ct_item_ops = &target_stat_scsi_auth_intr_attrib_ops, .ct_attrs = target_stat_scsi_auth_intr_attrs, .ct_owner = THIS_MODULE, }; @@ -1350,25 +1177,17 @@ static struct config_item_type target_stat_scsi_auth_intr_cit = { * SCSI Attached Initiator Port Table */ -CONFIGFS_EATTR_STRUCT(target_stat_scsi_att_intr_port, se_ml_stat_grps); -#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR(_name, _mode) \ -static struct target_stat_scsi_att_intr_port_attribute \ - target_stat_scsi_att_intr_port_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - target_stat_scsi_att_intr_port_show_attr_##_name, \ - target_stat_scsi_att_intr_port_store_attr_##_name); - -#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(_name) \ -static struct target_stat_scsi_att_intr_port_attribute \ - target_stat_scsi_att_intr_port_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - target_stat_scsi_att_intr_port_show_attr_##_name); - -static ssize_t target_stat_scsi_att_intr_port_show_attr_inst( - struct se_ml_stat_grps *lgrps, char *page) -{ - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); +static struct se_lun_acl *iport_to_lacl(struct config_item *item) +{ + struct se_ml_stat_grps *lgrps = container_of(to_config_group(item), + struct se_ml_stat_grps, scsi_att_intr_port_group); + return container_of(lgrps, struct se_lun_acl, ml_stat_grps); +} + +static ssize_t target_stat_iport_inst_show(struct config_item *item, + char *page) +{ + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_portal_group *tpg; @@ -1387,13 +1206,11 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_inst( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(inst); -static ssize_t target_stat_scsi_att_intr_port_show_attr_dev( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_iport_dev_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_lun *lun; @@ -1411,13 +1228,11 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_dev( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(dev); -static ssize_t target_stat_scsi_att_intr_port_show_attr_port( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_iport_port_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; struct se_portal_group *tpg; @@ -1435,13 +1250,11 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_port( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port); -static ssize_t target_stat_scsi_att_intr_port_show_attr_indx( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_iport_indx_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_session *se_sess; struct se_portal_group *tpg; @@ -1461,13 +1274,11 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_indx( spin_unlock_irq(&nacl->nacl_sess_lock); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(indx); -static ssize_t target_stat_scsi_att_intr_port_show_attr_port_auth_indx( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_iport_port_auth_indx_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_dev_entry *deve; ssize_t ret; @@ -1483,13 +1294,11 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_port_auth_indx( rcu_read_unlock(); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_auth_indx); -static ssize_t target_stat_scsi_att_intr_port_show_attr_port_ident( - struct se_ml_stat_grps *lgrps, char *page) +static ssize_t target_stat_iport_port_ident_show(struct config_item *item, + char *page) { - struct se_lun_acl *lacl = container_of(lgrps, - struct se_lun_acl, ml_stat_grps); + struct se_lun_acl *lacl = iport_to_lacl(item); struct se_node_acl *nacl = lacl->se_lun_nacl; struct se_session *se_sess; struct se_portal_group *tpg; @@ -1513,28 +1322,25 @@ static ssize_t target_stat_scsi_att_intr_port_show_attr_port_ident( spin_unlock_irq(&nacl->nacl_sess_lock); return ret; } -DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_ident); -CONFIGFS_EATTR_OPS(target_stat_scsi_att_intr_port, se_ml_stat_grps, - scsi_att_intr_port_group); +CONFIGFS_ATTR_RO(target_stat_iport_, inst); +CONFIGFS_ATTR_RO(target_stat_iport_, dev); +CONFIGFS_ATTR_RO(target_stat_iport_, port); +CONFIGFS_ATTR_RO(target_stat_iport_, indx); +CONFIGFS_ATTR_RO(target_stat_iport_, port_auth_indx); +CONFIGFS_ATTR_RO(target_stat_iport_, port_ident); static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = { - &target_stat_scsi_att_intr_port_inst.attr, - &target_stat_scsi_att_intr_port_dev.attr, - &target_stat_scsi_att_intr_port_port.attr, - &target_stat_scsi_att_intr_port_indx.attr, - &target_stat_scsi_att_intr_port_port_auth_indx.attr, - &target_stat_scsi_att_intr_port_port_ident.attr, + &target_stat_iport_attr_inst, + &target_stat_iport_attr_dev, + &target_stat_iport_attr_port, + &target_stat_iport_attr_indx, + &target_stat_iport_attr_port_auth_indx, + &target_stat_iport_attr_port_ident, NULL, }; -static struct configfs_item_operations target_stat_scsi_att_intr_port_attrib_ops = { - .show_attribute = target_stat_scsi_att_intr_port_attr_show, - .store_attribute = target_stat_scsi_att_intr_port_attr_store, -}; - static struct config_item_type target_stat_scsi_att_intr_port_cit = { - .ct_item_ops = &target_stat_scsi_att_intr_port_attrib_ops, .ct_attrs = target_stat_scsi_ath_intr_port_attrs, .ct_owner = THIS_MODULE, }; diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c index aa3caca8bace..064d6dfb5b6d 100644 --- a/drivers/target/tcm_fc/tfc_cmd.c +++ b/drivers/target/tcm_fc/tfc_cmd.c @@ -36,7 +36,6 @@ #include #include -#include #include "tcm_fc.h" diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c index 16670933013b..85aeaa0ad303 100644 --- a/drivers/target/tcm_fc/tfc_conf.c +++ b/drivers/target/tcm_fc/tfc_conf.c @@ -38,8 +38,6 @@ #include #include -#include -#include #include "tcm_fc.h" @@ -131,55 +129,51 @@ static ssize_t ft_wwn_store(void *arg, const char *buf, size_t len) * ACL auth ops. */ -static ssize_t ft_nacl_show_port_name( - struct se_node_acl *se_nacl, - char *page) +static ssize_t ft_nacl_port_name_show(struct config_item *item, char *page) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct ft_node_acl *acl = container_of(se_nacl, struct ft_node_acl, se_node_acl); return ft_wwn_show(&acl->node_auth.port_name, page); } -static ssize_t ft_nacl_store_port_name( - struct se_node_acl *se_nacl, - const char *page, - size_t count) +static ssize_t ft_nacl_port_name_store(struct config_item *item, + const char *page, size_t count) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct ft_node_acl *acl = container_of(se_nacl, struct ft_node_acl, se_node_acl); return ft_wwn_store(&acl->node_auth.port_name, page, count); } -TF_NACL_BASE_ATTR(ft, port_name, S_IRUGO | S_IWUSR); - -static ssize_t ft_nacl_show_node_name( - struct se_node_acl *se_nacl, - char *page) +static ssize_t ft_nacl_node_name_show(struct config_item *item, + char *page) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct ft_node_acl *acl = container_of(se_nacl, struct ft_node_acl, se_node_acl); return ft_wwn_show(&acl->node_auth.node_name, page); } -static ssize_t ft_nacl_store_node_name( - struct se_node_acl *se_nacl, - const char *page, - size_t count) +static ssize_t ft_nacl_node_name_store(struct config_item *item, + const char *page, size_t count) { + struct se_node_acl *se_nacl = acl_to_nacl(item); struct ft_node_acl *acl = container_of(se_nacl, struct ft_node_acl, se_node_acl); return ft_wwn_store(&acl->node_auth.node_name, page, count); } -TF_NACL_BASE_ATTR(ft, node_name, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(ft_nacl_, node_name); +CONFIGFS_ATTR(ft_nacl_, port_name); static struct configfs_attribute *ft_nacl_base_attrs[] = { - &ft_nacl_port_name.attr, - &ft_nacl_node_name.attr, + &ft_nacl_attr_port_name, + &ft_nacl_attr_node_name, NULL, }; @@ -386,18 +380,16 @@ static void ft_del_wwn(struct se_wwn *wwn) kfree(ft_wwn); } -static ssize_t ft_wwn_show_attr_version( - struct target_fabric_configfs *tf, - char *page) +static ssize_t ft_wwn_version_show(struct config_item *item, char *page) { return sprintf(page, "TCM FC " FT_VERSION " on %s/%s on " ""UTS_RELEASE"\n", utsname()->sysname, utsname()->machine); } -TF_WWN_ATTR_RO(ft, version); +CONFIGFS_ATTR_RO(ft_wwn_, version); static struct configfs_attribute *ft_wwn_attrs[] = { - &ft_wwn_version.attr, + &ft_wwn_attr_version, NULL, }; diff --git a/drivers/target/tcm_fc/tfc_io.c b/drivers/target/tcm_fc/tfc_io.c index 4b0fedd6bd4b..847c1aa6fbf4 100644 --- a/drivers/target/tcm_fc/tfc_io.c +++ b/drivers/target/tcm_fc/tfc_io.c @@ -44,7 +44,6 @@ #include #include -#include #include "tcm_fc.h" diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index 31a9e3fb98c5..7b934eac995d 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -36,7 +36,6 @@ #include #include -#include #include "tcm_fc.h" diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c index c3c48088fced..33833fe2e163 100644 --- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c +++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c @@ -19,8 +19,6 @@ #include #include #include -#include -#include #include #include "tcm_usb_gadget.h" @@ -1467,23 +1465,21 @@ static void usbg_drop_tport(struct se_wwn *wwn) /* * If somebody feels like dropping the version property, go ahead. */ -static ssize_t usbg_wwn_show_attr_version( - struct target_fabric_configfs *tf, - char *page) +static ssize_t usbg_wwn_version_show(struct config_item *item, char *page) { return sprintf(page, "usb-gadget fabric module\n"); } -TF_WWN_ATTR_RO(usbg, version); + +CONFIGFS_ATTR_RO(usbg_wwn_, version); static struct configfs_attribute *usbg_wwn_attrs[] = { - &usbg_wwn_version.attr, + &usbg_wwn_attr_version, NULL, }; -static ssize_t tcm_usbg_tpg_show_enable( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_usbg_tpg_enable_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct usbg_tpg *tpg = container_of(se_tpg, struct usbg_tpg, se_tpg); return snprintf(page, PAGE_SIZE, "%u\n", tpg->gadget_connect); @@ -1492,11 +1488,10 @@ static ssize_t tcm_usbg_tpg_show_enable( static int usbg_attach(struct usbg_tpg *); static void usbg_detach(struct usbg_tpg *); -static ssize_t tcm_usbg_tpg_store_enable( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_usbg_tpg_enable_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct usbg_tpg *tpg = container_of(se_tpg, struct usbg_tpg, se_tpg); unsigned long op; ssize_t ret; @@ -1523,12 +1518,10 @@ static ssize_t tcm_usbg_tpg_store_enable( out: return count; } -TF_TPG_BASE_ATTR(tcm_usbg, enable, S_IRUGO | S_IWUSR); -static ssize_t tcm_usbg_tpg_show_nexus( - struct se_portal_group *se_tpg, - char *page) +static ssize_t tcm_usbg_tpg_nexus_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct usbg_tpg *tpg = container_of(se_tpg, struct usbg_tpg, se_tpg); struct tcm_usbg_nexus *tv_nexus; ssize_t ret; @@ -1636,11 +1629,10 @@ out: return ret; } -static ssize_t tcm_usbg_tpg_store_nexus( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t tcm_usbg_tpg_nexus_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct usbg_tpg *tpg = container_of(se_tpg, struct usbg_tpg, se_tpg); unsigned char i_port[USBG_NAMELEN], *ptr; int ret; @@ -1670,11 +1662,13 @@ static ssize_t tcm_usbg_tpg_store_nexus( return ret; return count; } -TF_TPG_BASE_ATTR(tcm_usbg, nexus, S_IRUGO | S_IWUSR); + +CONFIGFS_ATTR(tcm_usbg_tpg_, enable); +CONFIGFS_ATTR(tcm_usbg_tpg_, nexus); static struct configfs_attribute *usbg_base_attrs[] = { - &tcm_usbg_tpg_enable.attr, - &tcm_usbg_tpg_nexus.attr, + &tcm_usbg_tpg_attr_enable, + &tcm_usbg_tpg_attr_nexus, NULL, }; diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index f114a9dbb48f..a971765eb9f2 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -42,8 +42,6 @@ #include #include #include -#include -#include #include #include #include @@ -1686,11 +1684,10 @@ static void vhost_scsi_free_cmd_map_res(struct vhost_scsi_nexus *nexus, } } -static ssize_t vhost_scsi_tpg_attrib_store_fabric_prot_type( - struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t vhost_scsi_tpg_attrib_fabric_prot_type_store( + struct config_item *item, const char *page, size_t count) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct vhost_scsi_tpg *tpg = container_of(se_tpg, struct vhost_scsi_tpg, se_tpg); unsigned long val; @@ -1709,19 +1706,20 @@ static ssize_t vhost_scsi_tpg_attrib_store_fabric_prot_type( return count; } -static ssize_t vhost_scsi_tpg_attrib_show_fabric_prot_type( - struct se_portal_group *se_tpg, - char *page) +static ssize_t vhost_scsi_tpg_attrib_fabric_prot_type_show( + struct config_item *item, char *page) { + struct se_portal_group *se_tpg = attrib_to_tpg(item); struct vhost_scsi_tpg *tpg = container_of(se_tpg, struct vhost_scsi_tpg, se_tpg); return sprintf(page, "%d\n", tpg->tv_fabric_prot_type); } -TF_TPG_ATTRIB_ATTR(vhost_scsi, fabric_prot_type, S_IRUGO | S_IWUSR); + +CONFIGFS_ATTR(vhost_scsi_tpg_attrib_, fabric_prot_type); static struct configfs_attribute *vhost_scsi_tpg_attrib_attrs[] = { - &vhost_scsi_tpg_attrib_fabric_prot_type.attr, + &vhost_scsi_tpg_attrib_attr_fabric_prot_type, NULL, }; @@ -1869,9 +1867,9 @@ static int vhost_scsi_drop_nexus(struct vhost_scsi_tpg *tpg) return 0; } -static ssize_t vhost_scsi_tpg_show_nexus(struct se_portal_group *se_tpg, - char *page) +static ssize_t vhost_scsi_tpg_nexus_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct vhost_scsi_tpg *tpg = container_of(se_tpg, struct vhost_scsi_tpg, se_tpg); struct vhost_scsi_nexus *tv_nexus; @@ -1890,10 +1888,10 @@ static ssize_t vhost_scsi_tpg_show_nexus(struct se_portal_group *se_tpg, return ret; } -static ssize_t vhost_scsi_tpg_store_nexus(struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t vhost_scsi_tpg_nexus_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct vhost_scsi_tpg *tpg = container_of(se_tpg, struct vhost_scsi_tpg, se_tpg); struct vhost_scsi_tport *tport_wwn = tpg->tport; @@ -1968,10 +1966,10 @@ check_newline: return count; } -TF_TPG_BASE_ATTR(vhost_scsi, nexus, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(vhost_scsi_tpg_, nexus); static struct configfs_attribute *vhost_scsi_tpg_attrs[] = { - &vhost_scsi_tpg_nexus.attr, + &vhost_scsi_tpg_attr_nexus, NULL, }; @@ -2107,18 +2105,17 @@ static void vhost_scsi_drop_tport(struct se_wwn *wwn) } static ssize_t -vhost_scsi_wwn_show_attr_version(struct target_fabric_configfs *tf, - char *page) +vhost_scsi_wwn_version_show(struct config_item *item, char *page) { return sprintf(page, "TCM_VHOST fabric module %s on %s/%s" "on "UTS_RELEASE"\n", VHOST_SCSI_VERSION, utsname()->sysname, utsname()->machine); } -TF_WWN_ATTR_RO(vhost_scsi, version); +CONFIGFS_ATTR_RO(vhost_scsi_wwn_, version); static struct configfs_attribute *vhost_scsi_wwn_attrs[] = { - &vhost_scsi_wwn_version.attr, + &vhost_scsi_wwn_attr_version, NULL, }; diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index 9eeefd7cad41..43bcae852546 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -53,7 +53,6 @@ #include #include -#include #include @@ -1438,9 +1437,10 @@ static void scsiback_aborted_task(struct se_cmd *se_cmd) { } -static ssize_t scsiback_tpg_param_show_alias(struct se_portal_group *se_tpg, +static ssize_t scsiback_tpg_param_alias_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = param_to_tpg(item); struct scsiback_tpg *tpg = container_of(se_tpg, struct scsiback_tpg, se_tpg); ssize_t rb; @@ -1452,9 +1452,10 @@ static ssize_t scsiback_tpg_param_show_alias(struct se_portal_group *se_tpg, return rb; } -static ssize_t scsiback_tpg_param_store_alias(struct se_portal_group *se_tpg, +static ssize_t scsiback_tpg_param_alias_store(struct config_item *item, const char *page, size_t count) { + struct se_portal_group *se_tpg = param_to_tpg(item); struct scsiback_tpg *tpg = container_of(se_tpg, struct scsiback_tpg, se_tpg); int len; @@ -1474,10 +1475,10 @@ static ssize_t scsiback_tpg_param_store_alias(struct se_portal_group *se_tpg, return count; } -TF_TPG_PARAM_ATTR(scsiback, alias, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(scsiback_tpg_param_, alias); static struct configfs_attribute *scsiback_param_attrs[] = { - &scsiback_tpg_param_alias.attr, + &scsiback_tpg_param_attr_alias, NULL, }; @@ -1585,9 +1586,9 @@ static int scsiback_drop_nexus(struct scsiback_tpg *tpg) return 0; } -static ssize_t scsiback_tpg_show_nexus(struct se_portal_group *se_tpg, - char *page) +static ssize_t scsiback_tpg_nexus_show(struct config_item *item, char *page) { + struct se_portal_group *se_tpg = to_tpg(item); struct scsiback_tpg *tpg = container_of(se_tpg, struct scsiback_tpg, se_tpg); struct scsiback_nexus *tv_nexus; @@ -1606,10 +1607,10 @@ static ssize_t scsiback_tpg_show_nexus(struct se_portal_group *se_tpg, return ret; } -static ssize_t scsiback_tpg_store_nexus(struct se_portal_group *se_tpg, - const char *page, - size_t count) +static ssize_t scsiback_tpg_nexus_store(struct config_item *item, + const char *page, size_t count) { + struct se_portal_group *se_tpg = to_tpg(item); struct scsiback_tpg *tpg = container_of(se_tpg, struct scsiback_tpg, se_tpg); struct scsiback_tport *tport_wwn = tpg->tport; @@ -1681,26 +1682,25 @@ check_newline: return count; } -TF_TPG_BASE_ATTR(scsiback, nexus, S_IRUGO | S_IWUSR); +CONFIGFS_ATTR(scsiback_tpg_, nexus); static struct configfs_attribute *scsiback_tpg_attrs[] = { - &scsiback_tpg_nexus.attr, + &scsiback_tpg_attr_nexus, NULL, }; static ssize_t -scsiback_wwn_show_attr_version(struct target_fabric_configfs *tf, - char *page) +scsiback_wwn_version_show(struct config_item *item, char *page) { return sprintf(page, "xen-pvscsi fabric module %s on %s/%s on " UTS_RELEASE"\n", VSCSI_VERSION, utsname()->sysname, utsname()->machine); } -TF_WWN_ATTR_RO(scsiback, version); +CONFIGFS_ATTR_RO(scsiback_wwn_, version); static struct configfs_attribute *scsiback_wwn_attrs[] = { - &scsiback_wwn_version.attr, + &scsiback_wwn_attr_version, NULL, }; diff --git a/include/target/configfs_macros.h b/include/target/configfs_macros.h deleted file mode 100644 index a0fc85bbe2da..000000000000 --- a/include/target/configfs_macros.h +++ /dev/null @@ -1,147 +0,0 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * - * configfs_macros.h - extends macros for configfs - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. - * - * Based on sysfs: - * sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel - * - * Based on kobject.h: - * Copyright (c) 2002-2003 Patrick Mochel - * Copyright (c) 2002-2003 Open Source Development Labs - * - * configfs Copyright (C) 2005 Oracle. All rights reserved. - * - * Added CONFIGFS_EATTR() macros from original configfs.h macros - * Copright (C) 2008-2009 Nicholas A. Bellinger - * - * Please read Documentation/filesystems/configfs/configfs.txt before using - * the configfs interface, ESPECIALLY the parts about reference counts and - * item destructors. - */ - -#ifndef _CONFIGFS_MACROS_H_ -#define _CONFIGFS_MACROS_H_ - -#include - -/* - * Users often need to create attribute structures for their configurable - * attributes, containing a configfs_attribute member and function pointers - * for the show() and store() operations on that attribute. If they don't - * need anything else on the extended attribute structure, they can use - * this macro to define it. The argument _name isends up as - * 'struct _name_attribute, as well as names of to CONFIGFS_ATTR_OPS() below. - * The argument _item is the name of the structure containing the - * struct config_item or struct config_group structure members - */ -#define CONFIGFS_EATTR_STRUCT(_name, _item) \ -struct _name##_attribute { \ - struct configfs_attribute attr; \ - ssize_t (*show)(struct _item *, char *); \ - ssize_t (*store)(struct _item *, const char *, size_t); \ -} - -/* - * With the extended attribute structure, users can use this macro - * (similar to sysfs' __ATTR) to make defining attributes easier. - * An example: - * #define MYITEM_EATTR(_name, _mode, _show, _store) \ - * struct myitem_attribute childless_attr_##_name = \ - * __CONFIGFS_EATTR(_name, _mode, _show, _store) - */ -#define __CONFIGFS_EATTR(_name, _mode, _show, _store) \ -{ \ - .attr = { \ - .ca_name = __stringify(_name), \ - .ca_mode = _mode, \ - .ca_owner = THIS_MODULE, \ - }, \ - .show = _show, \ - .store = _store, \ -} -/* Here is a readonly version, only requiring a show() operation */ -#define __CONFIGFS_EATTR_RO(_name, _show) \ -{ \ - .attr = { \ - .ca_name = __stringify(_name), \ - .ca_mode = 0444, \ - .ca_owner = THIS_MODULE, \ - }, \ - .show = _show, \ -} - -/* - * With these extended attributes, the simple show_attribute() and - * store_attribute() operations need to call the show() and store() of the - * attributes. This is a common pattern, so we provide a macro to define - * them. The argument _name is the name of the attribute defined by - * CONFIGFS_ATTR_STRUCT(). The argument _item is the name of the structure - * containing the struct config_item or struct config_group structure member. - * The argument _item_member is the actual name of the struct config_* struct - * in your _item structure. Meaning my_structure->some_config_group. - * ^^_item^^^^^ ^^_item_member^^^ - * This macro expects the attributes to be named "struct _attribute". - */ -#define CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member) \ -static struct _item *to_##_name(struct config_item *ci) \ -{ \ - return (ci) ? container_of(to_config_group(ci), struct _item, \ - _item_member) : NULL; \ -} - -#define CONFIGFS_EATTR_OPS_SHOW(_name, _item) \ -static ssize_t _name##_attr_show(struct config_item *item, \ - struct configfs_attribute *attr, \ - char *page) \ -{ \ - struct _item *_item = to_##_name(item); \ - struct _name##_attribute * _name##_attr = \ - container_of(attr, struct _name##_attribute, attr); \ - ssize_t ret = 0; \ - \ - if (_name##_attr->show) \ - ret = _name##_attr->show(_item, page); \ - return ret; \ -} - -#define CONFIGFS_EATTR_OPS_STORE(_name, _item) \ -static ssize_t _name##_attr_store(struct config_item *item, \ - struct configfs_attribute *attr, \ - const char *page, size_t count) \ -{ \ - struct _item *_item = to_##_name(item); \ - struct _name##_attribute * _name##_attr = \ - container_of(attr, struct _name##_attribute, attr); \ - ssize_t ret = -EINVAL; \ - \ - if (_name##_attr->store) \ - ret = _name##_attr->store(_item, page, count); \ - return ret; \ -} - -#define CONFIGFS_EATTR_OPS(_name, _item, _item_member) \ - CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member); \ - CONFIGFS_EATTR_OPS_SHOW(_name, _item); \ - CONFIGFS_EATTR_OPS_STORE(_name, _item); - -#define CONFIGFS_EATTR_OPS_RO(_name, _item, _item_member) \ - CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member); \ - CONFIGFS_EATTR_OPS_SHOW(_name, _item); - -#endif /* _CONFIGFS_MACROS_H_ */ diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index ac9bf1c0e42d..8b9c727b533b 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -563,6 +563,36 @@ struct se_node_acl { struct kref acl_kref; }; +static inline struct se_node_acl *acl_to_nacl(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_node_acl, + acl_group); +} + +static inline struct se_node_acl *attrib_to_nacl(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_node_acl, + acl_attrib_group); +} + +static inline struct se_node_acl *auth_to_nacl(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_node_acl, + acl_auth_group); +} + +static inline struct se_node_acl *param_to_nacl(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_node_acl, + acl_param_group); +} + +static inline struct se_node_acl *fabric_stat_to_nacl(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_node_acl, + acl_fabric_stat_group); +} + struct se_session { unsigned sess_tearing_down:1; u64 sess_bin_isid; @@ -820,6 +850,12 @@ struct se_tpg_np { struct config_group tpg_np_group; }; +static inline struct se_tpg_np *to_tpg_np(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_tpg_np, + tpg_np_group); +} + struct se_portal_group { /* * PROTOCOL IDENTIFIER value per SPC4, 7.5.1. @@ -856,6 +892,30 @@ struct se_portal_group { struct config_group tpg_param_group; }; +static inline struct se_portal_group *to_tpg(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_portal_group, + tpg_group); +} + +static inline struct se_portal_group *attrib_to_tpg(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_portal_group, + tpg_attrib_group); +} + +static inline struct se_portal_group *auth_to_tpg(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_portal_group, + tpg_auth_group); +} + +static inline struct se_portal_group *param_to_tpg(struct config_item *item) +{ + return container_of(to_config_group(item), struct se_portal_group, + tpg_param_group); +} + struct se_wwn { struct target_fabric_configfs *wwn_tf; struct config_group wwn_group; diff --git a/include/target/target_core_fabric_configfs.h b/include/target/target_core_fabric_configfs.h deleted file mode 100644 index 7a0649c09e79..000000000000 --- a/include/target/target_core_fabric_configfs.h +++ /dev/null @@ -1,122 +0,0 @@ -/* - * Used for tfc_wwn_cit attributes - */ - -#include - -CONFIGFS_EATTR_STRUCT(target_fabric_nacl_attrib, se_node_acl); -#define TF_NACL_ATTRIB_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_nacl_attrib_attribute _fabric##_nacl_attrib_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_nacl_attrib_show_##_name, \ - _fabric##_nacl_attrib_store_##_name); - -CONFIGFS_EATTR_STRUCT(target_fabric_nacl_auth, se_node_acl); -#define TF_NACL_AUTH_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_nacl_auth_attribute _fabric##_nacl_auth_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_nacl_auth_show_##_name, \ - _fabric##_nacl_auth_store_##_name); - -#define TF_NACL_AUTH_ATTR_RO(_fabric, _name) \ -static struct target_fabric_nacl_auth_attribute _fabric##_nacl_auth_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - _fabric##_nacl_auth_show_##_name); - -CONFIGFS_EATTR_STRUCT(target_fabric_nacl_param, se_node_acl); -#define TF_NACL_PARAM_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_nacl_param_attribute _fabric##_nacl_param_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_nacl_param_show_##_name, \ - _fabric##_nacl_param_store_##_name); - -#define TF_NACL_PARAM_ATTR_RO(_fabric, _name) \ -static struct target_fabric_nacl_param_attribute _fabric##_nacl_param_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - _fabric##_nacl_param_show_##_name); - - -CONFIGFS_EATTR_STRUCT(target_fabric_nacl_base, se_node_acl); -#define TF_NACL_BASE_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_nacl_base_attribute _fabric##_nacl_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_nacl_show_##_name, \ - _fabric##_nacl_store_##_name); - -#define TF_NACL_BASE_ATTR_RO(_fabric, _name) \ -static struct target_fabric_nacl_base_attribute _fabric##_nacl_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - _fabric##_nacl_show_##_name); - -CONFIGFS_EATTR_STRUCT(target_fabric_np_base, se_tpg_np); -#define TF_NP_BASE_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_np_base_attribute _fabric##_np_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_np_show_##_name, \ - _fabric##_np_store_##_name); - -CONFIGFS_EATTR_STRUCT(target_fabric_tpg_attrib, se_portal_group); -#define TF_TPG_ATTRIB_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_tpg_attrib_attribute _fabric##_tpg_attrib_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_tpg_attrib_show_##_name, \ - _fabric##_tpg_attrib_store_##_name); - -CONFIGFS_EATTR_STRUCT(target_fabric_tpg_auth, se_portal_group); -#define TF_TPG_AUTH_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_tpg_auth_attribute _fabric##_tpg_auth_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_tpg_auth_show_##_name, \ - _fabric##_tpg_auth_store_##_name); - -#define TF_TPG_AUTH_ATTR_RO(_fabric, _name) \ -static struct target_fabric_tpg_auth_attribute _fabric##_tpg_auth_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - _fabric##_tpg_auth_show_##_name); - -CONFIGFS_EATTR_STRUCT(target_fabric_tpg_param, se_portal_group); -#define TF_TPG_PARAM_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_tpg_param_attribute _fabric##_tpg_param_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_tpg_param_show_##_name, \ - _fabric##_tpg_param_store_##_name); - - -CONFIGFS_EATTR_STRUCT(target_fabric_tpg, se_portal_group); -#define TF_TPG_BASE_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_tpg_attribute _fabric##_tpg_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_tpg_show_##_name, \ - _fabric##_tpg_store_##_name); - - -#define TF_TPG_BASE_ATTR_RO(_fabric, _name) \ -static struct target_fabric_tpg_attribute _fabric##_tpg_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - _fabric##_tpg_show_##_name); - -CONFIGFS_EATTR_STRUCT(target_fabric_wwn, target_fabric_configfs); -#define TF_WWN_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_wwn_attribute _fabric##_wwn_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_wwn_show_attr_##_name, \ - _fabric##_wwn_store_attr_##_name); - -#define TF_WWN_ATTR_RO(_fabric, _name) \ -static struct target_fabric_wwn_attribute _fabric##_wwn_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - _fabric##_wwn_show_attr_##_name); - -CONFIGFS_EATTR_STRUCT(target_fabric_discovery, target_fabric_configfs); -#define TF_DISC_ATTR(_fabric, _name, _mode) \ -static struct target_fabric_discovery_attribute _fabric##_disc_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - _fabric##_disc_show_##_name, \ - _fabric##_disc_store_##_name); - -#define TF_DISC_ATTR_RO(_fabric, _name) \ -static struct target_fabric_discovery_attribute _fabric##_disc_##_name = \ - __CONFIGFS_EATTR_RO(_name, \ - _fabric##_disc_show_##_name); - -extern int target_fabric_setup_cits(struct target_fabric_configfs *); -- cgit v1.2.3-71-gd317 From 517982229f78b2aebf00a8a337e84e8eeea70b8e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 3 Oct 2015 15:32:59 +0200 Subject: configfs: remove old API Remove the old show_attribute and store_attribute methods and update the documentation. Also replace the two C samples with a single new one in the proper samples directory where people expect to find it. Signed-off-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger --- Documentation/filesystems/Makefile | 2 - Documentation/filesystems/configfs/Makefile | 3 - Documentation/filesystems/configfs/configfs.txt | 38 +- .../configfs/configfs_example_explicit.c | 483 --------------------- .../filesystems/configfs/configfs_example_macros.c | 446 ------------------- fs/configfs/file.c | 15 +- include/linux/configfs.h | 82 ---- samples/Kconfig | 6 + samples/Makefile | 3 +- samples/configfs/Makefile | 2 + samples/configfs/configfs_sample.c | 404 +++++++++++++++++ 11 files changed, 428 insertions(+), 1056 deletions(-) delete mode 100644 Documentation/filesystems/configfs/Makefile delete mode 100644 Documentation/filesystems/configfs/configfs_example_explicit.c delete mode 100644 Documentation/filesystems/configfs/configfs_example_macros.c create mode 100644 samples/configfs/Makefile create mode 100644 samples/configfs/configfs_sample.c (limited to 'include') diff --git a/Documentation/filesystems/Makefile b/Documentation/filesystems/Makefile index 13483d192ebb..883010ce5e35 100644 --- a/Documentation/filesystems/Makefile +++ b/Documentation/filesystems/Makefile @@ -1,5 +1,3 @@ -subdir-y := configfs - # List of programs to build hostprogs-y := dnotify_test diff --git a/Documentation/filesystems/configfs/Makefile b/Documentation/filesystems/configfs/Makefile deleted file mode 100644 index be7ec5e67dbc..000000000000 --- a/Documentation/filesystems/configfs/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -ifneq ($(CONFIG_CONFIGFS_FS),) -obj-m += configfs_example_explicit.o configfs_example_macros.o -endif diff --git a/Documentation/filesystems/configfs/configfs.txt b/Documentation/filesystems/configfs/configfs.txt index b40fec9d3f53..af68efdbbfad 100644 --- a/Documentation/filesystems/configfs/configfs.txt +++ b/Documentation/filesystems/configfs/configfs.txt @@ -160,12 +160,6 @@ among other things. For that, it needs a type. struct configfs_item_operations { void (*release)(struct config_item *); - ssize_t (*show_attribute)(struct config_item *, - struct configfs_attribute *, - char *); - ssize_t (*store_attribute)(struct config_item *, - struct configfs_attribute *, - const char *, size_t); int (*allow_link)(struct config_item *src, struct config_item *target); int (*drop_link)(struct config_item *src, @@ -183,9 +177,7 @@ The most basic function of a config_item_type is to define what operations can be performed on a config_item. All items that have been allocated dynamically will need to provide the ct_item_ops->release() method. This method is called when the config_item's reference count -reaches zero. Items that wish to display an attribute need to provide -the ct_item_ops->show_attribute() method. Similarly, storing a new -attribute value uses the store_attribute() method. +reaches zero. [struct configfs_attribute] @@ -193,6 +185,8 @@ attribute value uses the store_attribute() method. char *ca_name; struct module *ca_owner; umode_t ca_mode; + ssize_t (*show)(struct config_item *, char *); + ssize_t (*store)(struct config_item *, const char *, size_t); }; When a config_item wants an attribute to appear as a file in the item's @@ -202,10 +196,10 @@ config_item_type->ct_attrs. When the item appears in configfs, the attribute file will appear with the configfs_attribute->ca_name filename. configfs_attribute->ca_mode specifies the file permissions. -If an attribute is readable and the config_item provides a -ct_item_ops->show_attribute() method, that method will be called -whenever userspace asks for a read(2) on the attribute. The converse -will happen for write(2). +If an attribute is readable and provides a ->show method, that method will +be called whenever userspace asks for a read(2) on the attribute. If an +attribute is writable and provides a ->store method, that method will be +be called whenever userspace asks for a write(2) on the attribute. [struct config_group] @@ -311,20 +305,10 @@ the subsystem must be ready for it. [An Example] The best example of these basic concepts is the simple_children -subsystem/group and the simple_child item in configfs_example_explicit.c -and configfs_example_macros.c. It shows a trivial object displaying and -storing an attribute, and a simple group creating and destroying these -children. - -The only difference between configfs_example_explicit.c and -configfs_example_macros.c is how the attributes of the childless item -are defined. The childless item has extended attributes, each with -their own show()/store() operation. This follows a convention commonly -used in sysfs. configfs_example_explicit.c creates these attributes -by explicitly defining the structures involved. Conversely -configfs_example_macros.c uses some convenience macros from configfs.h -to define the attributes. These macros are similar to their sysfs -counterparts. +subsystem/group and the simple_child item in +samples/configfs/configfs_sample.c. It shows a trivial object displaying +and storing an attribute, and a simple group creating and destroying +these children. [Hierarchy Navigation and the Subsystem Mutex] diff --git a/Documentation/filesystems/configfs/configfs_example_explicit.c b/Documentation/filesystems/configfs/configfs_example_explicit.c deleted file mode 100644 index 1420233dfa55..000000000000 --- a/Documentation/filesystems/configfs/configfs_example_explicit.c +++ /dev/null @@ -1,483 +0,0 @@ -/* - * vim: noexpandtab ts=8 sts=0 sw=8: - * - * configfs_example_explicit.c - This file is a demonstration module - * containing a number of configfs subsystems. It explicitly defines - * each structure without using the helper macros defined in - * configfs.h. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. - * - * Based on sysfs: - * sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel - * - * configfs Copyright (C) 2005 Oracle. All rights reserved. - */ - -#include -#include -#include - -#include - - - -/* - * 01-childless - * - * This first example is a childless subsystem. It cannot create - * any config_items. It just has attributes. - * - * Note that we are enclosing the configfs_subsystem inside a container. - * This is not necessary if a subsystem has no attributes directly - * on the subsystem. See the next example, 02-simple-children, for - * such a subsystem. - */ - -struct childless { - struct configfs_subsystem subsys; - int showme; - int storeme; -}; - -struct childless_attribute { - struct configfs_attribute attr; - ssize_t (*show)(struct childless *, char *); - ssize_t (*store)(struct childless *, const char *, size_t); -}; - -static inline struct childless *to_childless(struct config_item *item) -{ - return item ? container_of(to_configfs_subsystem(to_config_group(item)), struct childless, subsys) : NULL; -} - -static ssize_t childless_showme_read(struct childless *childless, - char *page) -{ - ssize_t pos; - - pos = sprintf(page, "%d\n", childless->showme); - childless->showme++; - - return pos; -} - -static ssize_t childless_storeme_read(struct childless *childless, - char *page) -{ - return sprintf(page, "%d\n", childless->storeme); -} - -static ssize_t childless_storeme_write(struct childless *childless, - const char *page, - size_t count) -{ - unsigned long tmp; - char *p = (char *) page; - - tmp = simple_strtoul(p, &p, 10); - if ((*p != '\0') && (*p != '\n')) - return -EINVAL; - - if (tmp > INT_MAX) - return -ERANGE; - - childless->storeme = tmp; - - return count; -} - -static ssize_t childless_description_read(struct childless *childless, - char *page) -{ - return sprintf(page, -"[01-childless]\n" -"\n" -"The childless subsystem is the simplest possible subsystem in\n" -"configfs. It does not support the creation of child config_items.\n" -"It only has a few attributes. In fact, it isn't much different\n" -"than a directory in /proc.\n"); -} - -static struct childless_attribute childless_attr_showme = { - .attr = { .ca_owner = THIS_MODULE, .ca_name = "showme", .ca_mode = S_IRUGO }, - .show = childless_showme_read, -}; -static struct childless_attribute childless_attr_storeme = { - .attr = { .ca_owner = THIS_MODULE, .ca_name = "storeme", .ca_mode = S_IRUGO | S_IWUSR }, - .show = childless_storeme_read, - .store = childless_storeme_write, -}; -static struct childless_attribute childless_attr_description = { - .attr = { .ca_owner = THIS_MODULE, .ca_name = "description", .ca_mode = S_IRUGO }, - .show = childless_description_read, -}; - -static struct configfs_attribute *childless_attrs[] = { - &childless_attr_showme.attr, - &childless_attr_storeme.attr, - &childless_attr_description.attr, - NULL, -}; - -static ssize_t childless_attr_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) -{ - struct childless *childless = to_childless(item); - struct childless_attribute *childless_attr = - container_of(attr, struct childless_attribute, attr); - ssize_t ret = 0; - - if (childless_attr->show) - ret = childless_attr->show(childless, page); - return ret; -} - -static ssize_t childless_attr_store(struct config_item *item, - struct configfs_attribute *attr, - const char *page, size_t count) -{ - struct childless *childless = to_childless(item); - struct childless_attribute *childless_attr = - container_of(attr, struct childless_attribute, attr); - ssize_t ret = -EINVAL; - - if (childless_attr->store) - ret = childless_attr->store(childless, page, count); - return ret; -} - -static struct configfs_item_operations childless_item_ops = { - .show_attribute = childless_attr_show, - .store_attribute = childless_attr_store, -}; - -static struct config_item_type childless_type = { - .ct_item_ops = &childless_item_ops, - .ct_attrs = childless_attrs, - .ct_owner = THIS_MODULE, -}; - -static struct childless childless_subsys = { - .subsys = { - .su_group = { - .cg_item = { - .ci_namebuf = "01-childless", - .ci_type = &childless_type, - }, - }, - }, -}; - - -/* ----------------------------------------------------------------- */ - -/* - * 02-simple-children - * - * This example merely has a simple one-attribute child. Note that - * there is no extra attribute structure, as the child's attribute is - * known from the get-go. Also, there is no container for the - * subsystem, as it has no attributes of its own. - */ - -struct simple_child { - struct config_item item; - int storeme; -}; - -static inline struct simple_child *to_simple_child(struct config_item *item) -{ - return item ? container_of(item, struct simple_child, item) : NULL; -} - -static struct configfs_attribute simple_child_attr_storeme = { - .ca_owner = THIS_MODULE, - .ca_name = "storeme", - .ca_mode = S_IRUGO | S_IWUSR, -}; - -static struct configfs_attribute *simple_child_attrs[] = { - &simple_child_attr_storeme, - NULL, -}; - -static ssize_t simple_child_attr_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) -{ - ssize_t count; - struct simple_child *simple_child = to_simple_child(item); - - count = sprintf(page, "%d\n", simple_child->storeme); - - return count; -} - -static ssize_t simple_child_attr_store(struct config_item *item, - struct configfs_attribute *attr, - const char *page, size_t count) -{ - struct simple_child *simple_child = to_simple_child(item); - unsigned long tmp; - char *p = (char *) page; - - tmp = simple_strtoul(p, &p, 10); - if (!p || (*p && (*p != '\n'))) - return -EINVAL; - - if (tmp > INT_MAX) - return -ERANGE; - - simple_child->storeme = tmp; - - return count; -} - -static void simple_child_release(struct config_item *item) -{ - kfree(to_simple_child(item)); -} - -static struct configfs_item_operations simple_child_item_ops = { - .release = simple_child_release, - .show_attribute = simple_child_attr_show, - .store_attribute = simple_child_attr_store, -}; - -static struct config_item_type simple_child_type = { - .ct_item_ops = &simple_child_item_ops, - .ct_attrs = simple_child_attrs, - .ct_owner = THIS_MODULE, -}; - - -struct simple_children { - struct config_group group; -}; - -static inline struct simple_children *to_simple_children(struct config_item *item) -{ - return item ? container_of(to_config_group(item), struct simple_children, group) : NULL; -} - -static struct config_item *simple_children_make_item(struct config_group *group, const char *name) -{ - struct simple_child *simple_child; - - simple_child = kzalloc(sizeof(struct simple_child), GFP_KERNEL); - if (!simple_child) - return ERR_PTR(-ENOMEM); - - config_item_init_type_name(&simple_child->item, name, - &simple_child_type); - - simple_child->storeme = 0; - - return &simple_child->item; -} - -static struct configfs_attribute simple_children_attr_description = { - .ca_owner = THIS_MODULE, - .ca_name = "description", - .ca_mode = S_IRUGO, -}; - -static struct configfs_attribute *simple_children_attrs[] = { - &simple_children_attr_description, - NULL, -}; - -static ssize_t simple_children_attr_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) -{ - return sprintf(page, -"[02-simple-children]\n" -"\n" -"This subsystem allows the creation of child config_items. These\n" -"items have only one attribute that is readable and writeable.\n"); -} - -static void simple_children_release(struct config_item *item) -{ - kfree(to_simple_children(item)); -} - -static struct configfs_item_operations simple_children_item_ops = { - .release = simple_children_release, - .show_attribute = simple_children_attr_show, -}; - -/* - * Note that, since no extra work is required on ->drop_item(), - * no ->drop_item() is provided. - */ -static struct configfs_group_operations simple_children_group_ops = { - .make_item = simple_children_make_item, -}; - -static struct config_item_type simple_children_type = { - .ct_item_ops = &simple_children_item_ops, - .ct_group_ops = &simple_children_group_ops, - .ct_attrs = simple_children_attrs, - .ct_owner = THIS_MODULE, -}; - -static struct configfs_subsystem simple_children_subsys = { - .su_group = { - .cg_item = { - .ci_namebuf = "02-simple-children", - .ci_type = &simple_children_type, - }, - }, -}; - - -/* ----------------------------------------------------------------- */ - -/* - * 03-group-children - * - * This example reuses the simple_children group from above. However, - * the simple_children group is not the subsystem itself, it is a - * child of the subsystem. Creation of a group in the subsystem creates - * a new simple_children group. That group can then have simple_child - * children of its own. - */ - -static struct config_group *group_children_make_group(struct config_group *group, const char *name) -{ - struct simple_children *simple_children; - - simple_children = kzalloc(sizeof(struct simple_children), - GFP_KERNEL); - if (!simple_children) - return ERR_PTR(-ENOMEM); - - config_group_init_type_name(&simple_children->group, name, - &simple_children_type); - - return &simple_children->group; -} - -static struct configfs_attribute group_children_attr_description = { - .ca_owner = THIS_MODULE, - .ca_name = "description", - .ca_mode = S_IRUGO, -}; - -static struct configfs_attribute *group_children_attrs[] = { - &group_children_attr_description, - NULL, -}; - -static ssize_t group_children_attr_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) -{ - return sprintf(page, -"[03-group-children]\n" -"\n" -"This subsystem allows the creation of child config_groups. These\n" -"groups are like the subsystem simple-children.\n"); -} - -static struct configfs_item_operations group_children_item_ops = { - .show_attribute = group_children_attr_show, -}; - -/* - * Note that, since no extra work is required on ->drop_item(), - * no ->drop_item() is provided. - */ -static struct configfs_group_operations group_children_group_ops = { - .make_group = group_children_make_group, -}; - -static struct config_item_type group_children_type = { - .ct_item_ops = &group_children_item_ops, - .ct_group_ops = &group_children_group_ops, - .ct_attrs = group_children_attrs, - .ct_owner = THIS_MODULE, -}; - -static struct configfs_subsystem group_children_subsys = { - .su_group = { - .cg_item = { - .ci_namebuf = "03-group-children", - .ci_type = &group_children_type, - }, - }, -}; - -/* ----------------------------------------------------------------- */ - -/* - * We're now done with our subsystem definitions. - * For convenience in this module, here's a list of them all. It - * allows the init function to easily register them. Most modules - * will only have one subsystem, and will only call register_subsystem - * on it directly. - */ -static struct configfs_subsystem *example_subsys[] = { - &childless_subsys.subsys, - &simple_children_subsys, - &group_children_subsys, - NULL, -}; - -static int __init configfs_example_init(void) -{ - int ret; - int i; - struct configfs_subsystem *subsys; - - for (i = 0; example_subsys[i]; i++) { - subsys = example_subsys[i]; - - config_group_init(&subsys->su_group); - mutex_init(&subsys->su_mutex); - ret = configfs_register_subsystem(subsys); - if (ret) { - printk(KERN_ERR "Error %d while registering subsystem %s\n", - ret, - subsys->su_group.cg_item.ci_namebuf); - goto out_unregister; - } - } - - return 0; - -out_unregister: - for (i--; i >= 0; i--) - configfs_unregister_subsystem(example_subsys[i]); - - return ret; -} - -static void __exit configfs_example_exit(void) -{ - int i; - - for (i = 0; example_subsys[i]; i++) - configfs_unregister_subsystem(example_subsys[i]); -} - -module_init(configfs_example_init); -module_exit(configfs_example_exit); -MODULE_LICENSE("GPL"); diff --git a/Documentation/filesystems/configfs/configfs_example_macros.c b/Documentation/filesystems/configfs/configfs_example_macros.c deleted file mode 100644 index 327dfbc640a9..000000000000 --- a/Documentation/filesystems/configfs/configfs_example_macros.c +++ /dev/null @@ -1,446 +0,0 @@ -/* - * vim: noexpandtab ts=8 sts=0 sw=8: - * - * configfs_example_macros.c - This file is a demonstration module - * containing a number of configfs subsystems. It uses the helper - * macros defined by configfs.h - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. - * - * Based on sysfs: - * sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel - * - * configfs Copyright (C) 2005 Oracle. All rights reserved. - */ - -#include -#include -#include - -#include - - - -/* - * 01-childless - * - * This first example is a childless subsystem. It cannot create - * any config_items. It just has attributes. - * - * Note that we are enclosing the configfs_subsystem inside a container. - * This is not necessary if a subsystem has no attributes directly - * on the subsystem. See the next example, 02-simple-children, for - * such a subsystem. - */ - -struct childless { - struct configfs_subsystem subsys; - int showme; - int storeme; -}; - -static inline struct childless *to_childless(struct config_item *item) -{ - return item ? container_of(to_configfs_subsystem(to_config_group(item)), struct childless, subsys) : NULL; -} - -CONFIGFS_ATTR_STRUCT(childless); -#define CHILDLESS_ATTR(_name, _mode, _show, _store) \ -struct childless_attribute childless_attr_##_name = __CONFIGFS_ATTR(_name, _mode, _show, _store) -#define CHILDLESS_ATTR_RO(_name, _show) \ -struct childless_attribute childless_attr_##_name = __CONFIGFS_ATTR_RO(_name, _show); - -static ssize_t childless_showme_read(struct childless *childless, - char *page) -{ - ssize_t pos; - - pos = sprintf(page, "%d\n", childless->showme); - childless->showme++; - - return pos; -} - -static ssize_t childless_storeme_read(struct childless *childless, - char *page) -{ - return sprintf(page, "%d\n", childless->storeme); -} - -static ssize_t childless_storeme_write(struct childless *childless, - const char *page, - size_t count) -{ - unsigned long tmp; - char *p = (char *) page; - - tmp = simple_strtoul(p, &p, 10); - if (!p || (*p && (*p != '\n'))) - return -EINVAL; - - if (tmp > INT_MAX) - return -ERANGE; - - childless->storeme = tmp; - - return count; -} - -static ssize_t childless_description_read(struct childless *childless, - char *page) -{ - return sprintf(page, -"[01-childless]\n" -"\n" -"The childless subsystem is the simplest possible subsystem in\n" -"configfs. It does not support the creation of child config_items.\n" -"It only has a few attributes. In fact, it isn't much different\n" -"than a directory in /proc.\n"); -} - -CHILDLESS_ATTR_RO(showme, childless_showme_read); -CHILDLESS_ATTR(storeme, S_IRUGO | S_IWUSR, childless_storeme_read, - childless_storeme_write); -CHILDLESS_ATTR_RO(description, childless_description_read); - -static struct configfs_attribute *childless_attrs[] = { - &childless_attr_showme.attr, - &childless_attr_storeme.attr, - &childless_attr_description.attr, - NULL, -}; - -CONFIGFS_ATTR_OPS(childless); -static struct configfs_item_operations childless_item_ops = { - .show_attribute = childless_attr_show, - .store_attribute = childless_attr_store, -}; - -static struct config_item_type childless_type = { - .ct_item_ops = &childless_item_ops, - .ct_attrs = childless_attrs, - .ct_owner = THIS_MODULE, -}; - -static struct childless childless_subsys = { - .subsys = { - .su_group = { - .cg_item = { - .ci_namebuf = "01-childless", - .ci_type = &childless_type, - }, - }, - }, -}; - - -/* ----------------------------------------------------------------- */ - -/* - * 02-simple-children - * - * This example merely has a simple one-attribute child. Note that - * there is no extra attribute structure, as the child's attribute is - * known from the get-go. Also, there is no container for the - * subsystem, as it has no attributes of its own. - */ - -struct simple_child { - struct config_item item; - int storeme; -}; - -static inline struct simple_child *to_simple_child(struct config_item *item) -{ - return item ? container_of(item, struct simple_child, item) : NULL; -} - -static struct configfs_attribute simple_child_attr_storeme = { - .ca_owner = THIS_MODULE, - .ca_name = "storeme", - .ca_mode = S_IRUGO | S_IWUSR, -}; - -static struct configfs_attribute *simple_child_attrs[] = { - &simple_child_attr_storeme, - NULL, -}; - -static ssize_t simple_child_attr_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) -{ - ssize_t count; - struct simple_child *simple_child = to_simple_child(item); - - count = sprintf(page, "%d\n", simple_child->storeme); - - return count; -} - -static ssize_t simple_child_attr_store(struct config_item *item, - struct configfs_attribute *attr, - const char *page, size_t count) -{ - struct simple_child *simple_child = to_simple_child(item); - unsigned long tmp; - char *p = (char *) page; - - tmp = simple_strtoul(p, &p, 10); - if (!p || (*p && (*p != '\n'))) - return -EINVAL; - - if (tmp > INT_MAX) - return -ERANGE; - - simple_child->storeme = tmp; - - return count; -} - -static void simple_child_release(struct config_item *item) -{ - kfree(to_simple_child(item)); -} - -static struct configfs_item_operations simple_child_item_ops = { - .release = simple_child_release, - .show_attribute = simple_child_attr_show, - .store_attribute = simple_child_attr_store, -}; - -static struct config_item_type simple_child_type = { - .ct_item_ops = &simple_child_item_ops, - .ct_attrs = simple_child_attrs, - .ct_owner = THIS_MODULE, -}; - - -struct simple_children { - struct config_group group; -}; - -static inline struct simple_children *to_simple_children(struct config_item *item) -{ - return item ? container_of(to_config_group(item), struct simple_children, group) : NULL; -} - -static struct config_item *simple_children_make_item(struct config_group *group, const char *name) -{ - struct simple_child *simple_child; - - simple_child = kzalloc(sizeof(struct simple_child), GFP_KERNEL); - if (!simple_child) - return ERR_PTR(-ENOMEM); - - config_item_init_type_name(&simple_child->item, name, - &simple_child_type); - - simple_child->storeme = 0; - - return &simple_child->item; -} - -static struct configfs_attribute simple_children_attr_description = { - .ca_owner = THIS_MODULE, - .ca_name = "description", - .ca_mode = S_IRUGO, -}; - -static struct configfs_attribute *simple_children_attrs[] = { - &simple_children_attr_description, - NULL, -}; - -static ssize_t simple_children_attr_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) -{ - return sprintf(page, -"[02-simple-children]\n" -"\n" -"This subsystem allows the creation of child config_items. These\n" -"items have only one attribute that is readable and writeable.\n"); -} - -static void simple_children_release(struct config_item *item) -{ - kfree(to_simple_children(item)); -} - -static struct configfs_item_operations simple_children_item_ops = { - .release = simple_children_release, - .show_attribute = simple_children_attr_show, -}; - -/* - * Note that, since no extra work is required on ->drop_item(), - * no ->drop_item() is provided. - */ -static struct configfs_group_operations simple_children_group_ops = { - .make_item = simple_children_make_item, -}; - -static struct config_item_type simple_children_type = { - .ct_item_ops = &simple_children_item_ops, - .ct_group_ops = &simple_children_group_ops, - .ct_attrs = simple_children_attrs, - .ct_owner = THIS_MODULE, -}; - -static struct configfs_subsystem simple_children_subsys = { - .su_group = { - .cg_item = { - .ci_namebuf = "02-simple-children", - .ci_type = &simple_children_type, - }, - }, -}; - - -/* ----------------------------------------------------------------- */ - -/* - * 03-group-children - * - * This example reuses the simple_children group from above. However, - * the simple_children group is not the subsystem itself, it is a - * child of the subsystem. Creation of a group in the subsystem creates - * a new simple_children group. That group can then have simple_child - * children of its own. - */ - -static struct config_group *group_children_make_group(struct config_group *group, const char *name) -{ - struct simple_children *simple_children; - - simple_children = kzalloc(sizeof(struct simple_children), - GFP_KERNEL); - if (!simple_children) - return ERR_PTR(-ENOMEM); - - config_group_init_type_name(&simple_children->group, name, - &simple_children_type); - - return &simple_children->group; -} - -static struct configfs_attribute group_children_attr_description = { - .ca_owner = THIS_MODULE, - .ca_name = "description", - .ca_mode = S_IRUGO, -}; - -static struct configfs_attribute *group_children_attrs[] = { - &group_children_attr_description, - NULL, -}; - -static ssize_t group_children_attr_show(struct config_item *item, - struct configfs_attribute *attr, - char *page) -{ - return sprintf(page, -"[03-group-children]\n" -"\n" -"This subsystem allows the creation of child config_groups. These\n" -"groups are like the subsystem simple-children.\n"); -} - -static struct configfs_item_operations group_children_item_ops = { - .show_attribute = group_children_attr_show, -}; - -/* - * Note that, since no extra work is required on ->drop_item(), - * no ->drop_item() is provided. - */ -static struct configfs_group_operations group_children_group_ops = { - .make_group = group_children_make_group, -}; - -static struct config_item_type group_children_type = { - .ct_item_ops = &group_children_item_ops, - .ct_group_ops = &group_children_group_ops, - .ct_attrs = group_children_attrs, - .ct_owner = THIS_MODULE, -}; - -static struct configfs_subsystem group_children_subsys = { - .su_group = { - .cg_item = { - .ci_namebuf = "03-group-children", - .ci_type = &group_children_type, - }, - }, -}; - -/* ----------------------------------------------------------------- */ - -/* - * We're now done with our subsystem definitions. - * For convenience in this module, here's a list of them all. It - * allows the init function to easily register them. Most modules - * will only have one subsystem, and will only call register_subsystem - * on it directly. - */ -static struct configfs_subsystem *example_subsys[] = { - &childless_subsys.subsys, - &simple_children_subsys, - &group_children_subsys, - NULL, -}; - -static int __init configfs_example_init(void) -{ - int ret; - int i; - struct configfs_subsystem *subsys; - - for (i = 0; example_subsys[i]; i++) { - subsys = example_subsys[i]; - - config_group_init(&subsys->su_group); - mutex_init(&subsys->su_mutex); - ret = configfs_register_subsystem(subsys); - if (ret) { - printk(KERN_ERR "Error %d while registering subsystem %s\n", - ret, - subsys->su_group.cg_item.ci_namebuf); - goto out_unregister; - } - } - - return 0; - -out_unregister: - for (i--; i >= 0; i--) - configfs_unregister_subsystem(example_subsys[i]); - - return ret; -} - -static void __exit configfs_example_exit(void) -{ - int i; - - for (i = 0; example_subsys[i]; i++) - configfs_unregister_subsystem(example_subsys[i]); -} - -module_init(configfs_example_init); -module_exit(configfs_example_exit); -MODULE_LICENSE("GPL"); diff --git a/fs/configfs/file.c b/fs/configfs/file.c index 106ca589e90a..d39099ea7df7 100644 --- a/fs/configfs/file.c +++ b/fs/configfs/file.c @@ -65,7 +65,6 @@ static int fill_read_buffer(struct dentry * dentry, struct configfs_buffer * buf { struct configfs_attribute * attr = to_attr(dentry); struct config_item * item = to_item(dentry->d_parent); - struct configfs_item_operations * ops = buffer->ops; int ret = 0; ssize_t count; @@ -74,10 +73,7 @@ static int fill_read_buffer(struct dentry * dentry, struct configfs_buffer * buf if (!buffer->page) return -ENOMEM; - if (ops->show_attribute) - count = ops->show_attribute(item, attr, buffer->page); - else - count = attr->show(item, buffer->page); + count = attr->show(item, buffer->page); buffer->needs_read_fill = 0; BUG_ON(count > (ssize_t)SIMPLE_ATTR_SIZE); @@ -175,10 +171,7 @@ flush_write_buffer(struct dentry * dentry, struct configfs_buffer * buffer, size { struct configfs_attribute * attr = to_attr(dentry); struct config_item * item = to_item(dentry->d_parent); - struct configfs_item_operations * ops = buffer->ops; - if (ops->store_attribute) - return ops->store_attribute(item, attr, buffer->page, count); return attr->store(item, buffer->page, count); } @@ -243,8 +236,7 @@ static int check_perm(struct inode * inode, struct file * file) * and we must have a store method. */ if (file->f_mode & FMODE_WRITE) { - if (!(inode->i_mode & S_IWUGO) || - (!ops->store_attribute && !attr->store)) + if (!(inode->i_mode & S_IWUGO) || !attr->store) goto Eaccess; } @@ -254,8 +246,7 @@ static int check_perm(struct inode * inode, struct file * file) * must be a show method for it. */ if (file->f_mode & FMODE_READ) { - if (!(inode->i_mode & S_IRUGO) || - (!ops->show_attribute && !attr->show)) + if (!(inode->i_mode & S_IRUGO) || !attr->show) goto Eaccess; } diff --git a/include/linux/configfs.h b/include/linux/configfs.h index 85e9956a86de..a8a335b7fce0 100644 --- a/include/linux/configfs.h +++ b/include/linux/configfs.h @@ -154,86 +154,6 @@ static struct configfs_attribute _pfx##attr_##_name = { \ .store = _pfx##_name##_store, \ } -/* - * Users often need to create attribute structures for their configurable - * attributes, containing a configfs_attribute member and function pointers - * for the show() and store() operations on that attribute. If they don't - * need anything else on the extended attribute structure, they can use - * this macro to define it The argument _item is the name of the - * config_item structure. - */ -#define CONFIGFS_ATTR_STRUCT(_item) \ -struct _item##_attribute { \ - struct configfs_attribute attr; \ - ssize_t (*show)(struct _item *, char *); \ - ssize_t (*store)(struct _item *, const char *, size_t); \ -} - -/* - * With the extended attribute structure, users can use this macro - * (similar to sysfs' __ATTR) to make defining attributes easier. - * An example: - * #define MYITEM_ATTR(_name, _mode, _show, _store) \ - * struct myitem_attribute childless_attr_##_name = \ - * __CONFIGFS_ATTR(_name, _mode, _show, _store) - */ -#define __CONFIGFS_ATTR(_name, _mode, _show, _store) \ -{ \ - .attr = { \ - .ca_name = __stringify(_name), \ - .ca_mode = _mode, \ - .ca_owner = THIS_MODULE, \ - }, \ - .show = _show, \ - .store = _store, \ -} -/* Here is a readonly version, only requiring a show() operation */ -#define __CONFIGFS_ATTR_RO(_name, _show) \ -{ \ - .attr = { \ - .ca_name = __stringify(_name), \ - .ca_mode = 0444, \ - .ca_owner = THIS_MODULE, \ - }, \ - .show = _show, \ -} - -/* - * With these extended attributes, the simple show_attribute() and - * store_attribute() operations need to call the show() and store() of the - * attributes. This is a common pattern, so we provide a macro to define - * them. The argument _item is the name of the config_item structure. - * This macro expects the attributes to be named "struct _attribute" - * and the function to_() to exist; - */ -#define CONFIGFS_ATTR_OPS(_item) \ -static ssize_t _item##_attr_show(struct config_item *item, \ - struct configfs_attribute *attr, \ - char *page) \ -{ \ - struct _item *_item = to_##_item(item); \ - struct _item##_attribute *_item##_attr = \ - container_of(attr, struct _item##_attribute, attr); \ - ssize_t ret = 0; \ - \ - if (_item##_attr->show) \ - ret = _item##_attr->show(_item, page); \ - return ret; \ -} \ -static ssize_t _item##_attr_store(struct config_item *item, \ - struct configfs_attribute *attr, \ - const char *page, size_t count) \ -{ \ - struct _item *_item = to_##_item(item); \ - struct _item##_attribute *_item##_attr = \ - container_of(attr, struct _item##_attribute, attr); \ - ssize_t ret = -EINVAL; \ - \ - if (_item##_attr->store) \ - ret = _item##_attr->store(_item, page, count); \ - return ret; \ -} - /* * If allow_link() exists, the item can symlink(2) out to other * items. If the item is a group, it may support mkdir(2). @@ -250,8 +170,6 @@ static ssize_t _item##_attr_store(struct config_item *item, \ */ struct configfs_item_operations { void (*release)(struct config_item *); - ssize_t (*show_attribute)(struct config_item *, struct configfs_attribute *,char *); - ssize_t (*store_attribute)(struct config_item *,struct configfs_attribute *,const char *, size_t); int (*allow_link)(struct config_item *src, struct config_item *target); int (*drop_link)(struct config_item *src, struct config_item *target); }; diff --git a/samples/Kconfig b/samples/Kconfig index 224ebb46bed5..d54f28c6dc5e 100644 --- a/samples/Kconfig +++ b/samples/Kconfig @@ -70,4 +70,10 @@ config SAMPLE_LIVEPATCH Builds a sample live patch that replaces the procfs handler for /proc/cmdline to print "this has been live patched". +config SAMPLE_CONFIGFS + tristate "Build configfs patching sample -- loadable modules only" + depends on CONFIGFS_FS && m + help + Builds a sample configfs interface. + endif # SAMPLES diff --git a/samples/Makefile b/samples/Makefile index f00257bcc5a7..48001d7e23f0 100644 --- a/samples/Makefile +++ b/samples/Makefile @@ -1,4 +1,5 @@ # Makefile for Linux samples code obj-$(CONFIG_SAMPLES) += kobject/ kprobes/ trace_events/ livepatch/ \ - hw_breakpoint/ kfifo/ kdb/ hidraw/ rpmsg/ seccomp/ + hw_breakpoint/ kfifo/ kdb/ hidraw/ rpmsg/ seccomp/ \ + configfs/ diff --git a/samples/configfs/Makefile b/samples/configfs/Makefile new file mode 100644 index 000000000000..a9afd99630fc --- /dev/null +++ b/samples/configfs/Makefile @@ -0,0 +1,2 @@ + +obj-$(CONFIG_SAMPLE_CONFIGFS) += configfs_sample.o diff --git a/samples/configfs/configfs_sample.c b/samples/configfs/configfs_sample.c new file mode 100644 index 000000000000..1ea33119e532 --- /dev/null +++ b/samples/configfs/configfs_sample.c @@ -0,0 +1,404 @@ +/* + * vim: noexpandtab ts=8 sts=0 sw=8: + * + * configfs_example_macros.c - This file is a demonstration module + * containing a number of configfs subsystems. It uses the helper + * macros defined by configfs.h + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public + * License along with this program; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 021110-1307, USA. + * + * Based on sysfs: + * sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel + * + * configfs Copyright (C) 2005 Oracle. All rights reserved. + */ + +#include +#include +#include + +#include + + + +/* + * 01-childless + * + * This first example is a childless subsystem. It cannot create + * any config_items. It just has attributes. + * + * Note that we are enclosing the configfs_subsystem inside a container. + * This is not necessary if a subsystem has no attributes directly + * on the subsystem. See the next example, 02-simple-children, for + * such a subsystem. + */ + +struct childless { + struct configfs_subsystem subsys; + int showme; + int storeme; +}; + +static inline struct childless *to_childless(struct config_item *item) +{ + return item ? container_of(to_configfs_subsystem(to_config_group(item)), + struct childless, subsys) : NULL; +} + +static ssize_t childless_showme_show(struct config_item *item, char *page) +{ + struct childless *childless = to_childless(item); + ssize_t pos; + + pos = sprintf(page, "%d\n", childless->showme); + childless->showme++; + + return pos; +} + +static ssize_t childless_storeme_show(struct config_item *item, char *page) +{ + return sprintf(page, "%d\n", to_childless(item)->storeme); +} + +static ssize_t childless_storeme_store(struct config_item *item, + const char *page, size_t count) +{ + struct childless *childless = to_childless(item); + unsigned long tmp; + char *p = (char *) page; + + tmp = simple_strtoul(p, &p, 10); + if (!p || (*p && (*p != '\n'))) + return -EINVAL; + + if (tmp > INT_MAX) + return -ERANGE; + + childless->storeme = tmp; + + return count; +} + +static ssize_t childless_description_show(struct config_item *item, char *page) +{ + return sprintf(page, +"[01-childless]\n" +"\n" +"The childless subsystem is the simplest possible subsystem in\n" +"configfs. It does not support the creation of child config_items.\n" +"It only has a few attributes. In fact, it isn't much different\n" +"than a directory in /proc.\n"); +} + +CONFIGFS_ATTR_RO(childless_, showme); +CONFIGFS_ATTR(childless_, storeme); +CONFIGFS_ATTR_RO(childless_, description); + +static struct configfs_attribute *childless_attrs[] = { + &childless_attr_showme, + &childless_attr_storeme, + &childless_attr_description, + NULL, +}; + +static struct config_item_type childless_type = { + .ct_attrs = childless_attrs, + .ct_owner = THIS_MODULE, +}; + +static struct childless childless_subsys = { + .subsys = { + .su_group = { + .cg_item = { + .ci_namebuf = "01-childless", + .ci_type = &childless_type, + }, + }, + }, +}; + + +/* ----------------------------------------------------------------- */ + +/* + * 02-simple-children + * + * This example merely has a simple one-attribute child. Note that + * there is no extra attribute structure, as the child's attribute is + * known from the get-go. Also, there is no container for the + * subsystem, as it has no attributes of its own. + */ + +struct simple_child { + struct config_item item; + int storeme; +}; + +static inline struct simple_child *to_simple_child(struct config_item *item) +{ + return item ? container_of(item, struct simple_child, item) : NULL; +} + +static ssize_t simple_child_storeme_show(struct config_item *item, char *page) +{ + return sprintf(page, "%d\n", to_simple_child(item)->storeme); +} + +static ssize_t simple_child_storeme_store(struct config_item *item, + const char *page, size_t count) +{ + struct simple_child *simple_child = to_simple_child(item); + unsigned long tmp; + char *p = (char *) page; + + tmp = simple_strtoul(p, &p, 10); + if (!p || (*p && (*p != '\n'))) + return -EINVAL; + + if (tmp > INT_MAX) + return -ERANGE; + + simple_child->storeme = tmp; + + return count; +} + +CONFIGFS_ATTR(simple_child_, storeme); + +static struct configfs_attribute *simple_child_attrs[] = { + &simple_child_attr_storeme, + NULL, +}; + +static void simple_child_release(struct config_item *item) +{ + kfree(to_simple_child(item)); +} + +static struct configfs_item_operations simple_child_item_ops = { + .release = simple_child_release, +}; + +static struct config_item_type simple_child_type = { + .ct_item_ops = &simple_child_item_ops, + .ct_attrs = simple_child_attrs, + .ct_owner = THIS_MODULE, +}; + + +struct simple_children { + struct config_group group; +}; + +static inline struct simple_children *to_simple_children(struct config_item *item) +{ + return item ? container_of(to_config_group(item), + struct simple_children, group) : NULL; +} + +static struct config_item *simple_children_make_item(struct config_group *group, + const char *name) +{ + struct simple_child *simple_child; + + simple_child = kzalloc(sizeof(struct simple_child), GFP_KERNEL); + if (!simple_child) + return ERR_PTR(-ENOMEM); + + config_item_init_type_name(&simple_child->item, name, + &simple_child_type); + + simple_child->storeme = 0; + + return &simple_child->item; +} + +static ssize_t simple_children_description_show(struct config_item *item, + char *page) +{ + return sprintf(page, +"[02-simple-children]\n" +"\n" +"This subsystem allows the creation of child config_items. These\n" +"items have only one attribute that is readable and writeable.\n"); +} + +CONFIGFS_ATTR_RO(simple_children_, description); + +static struct configfs_attribute *simple_children_attrs[] = { + &simple_children_attr_description, + NULL, +}; + +static void simple_children_release(struct config_item *item) +{ + kfree(to_simple_children(item)); +} + +static struct configfs_item_operations simple_children_item_ops = { + .release = simple_children_release, +}; + +/* + * Note that, since no extra work is required on ->drop_item(), + * no ->drop_item() is provided. + */ +static struct configfs_group_operations simple_children_group_ops = { + .make_item = simple_children_make_item, +}; + +static struct config_item_type simple_children_type = { + .ct_item_ops = &simple_children_item_ops, + .ct_group_ops = &simple_children_group_ops, + .ct_attrs = simple_children_attrs, + .ct_owner = THIS_MODULE, +}; + +static struct configfs_subsystem simple_children_subsys = { + .su_group = { + .cg_item = { + .ci_namebuf = "02-simple-children", + .ci_type = &simple_children_type, + }, + }, +}; + + +/* ----------------------------------------------------------------- */ + +/* + * 03-group-children + * + * This example reuses the simple_children group from above. However, + * the simple_children group is not the subsystem itself, it is a + * child of the subsystem. Creation of a group in the subsystem creates + * a new simple_children group. That group can then have simple_child + * children of its own. + */ + +static struct config_group *group_children_make_group( + struct config_group *group, const char *name) +{ + struct simple_children *simple_children; + + simple_children = kzalloc(sizeof(struct simple_children), + GFP_KERNEL); + if (!simple_children) + return ERR_PTR(-ENOMEM); + + config_group_init_type_name(&simple_children->group, name, + &simple_children_type); + + return &simple_children->group; +} + +static ssize_t group_children_description_show(struct config_item *item, + char *page) +{ + return sprintf(page, +"[03-group-children]\n" +"\n" +"This subsystem allows the creation of child config_groups. These\n" +"groups are like the subsystem simple-children.\n"); +} + +CONFIGFS_ATTR_RO(group_children_, description); + +static struct configfs_attribute *group_children_attrs[] = { + &group_children_attr_description, + NULL, +}; + +/* + * Note that, since no extra work is required on ->drop_item(), + * no ->drop_item() is provided. + */ +static struct configfs_group_operations group_children_group_ops = { + .make_group = group_children_make_group, +}; + +static struct config_item_type group_children_type = { + .ct_group_ops = &group_children_group_ops, + .ct_attrs = group_children_attrs, + .ct_owner = THIS_MODULE, +}; + +static struct configfs_subsystem group_children_subsys = { + .su_group = { + .cg_item = { + .ci_namebuf = "03-group-children", + .ci_type = &group_children_type, + }, + }, +}; + +/* ----------------------------------------------------------------- */ + +/* + * We're now done with our subsystem definitions. + * For convenience in this module, here's a list of them all. It + * allows the init function to easily register them. Most modules + * will only have one subsystem, and will only call register_subsystem + * on it directly. + */ +static struct configfs_subsystem *example_subsys[] = { + &childless_subsys.subsys, + &simple_children_subsys, + &group_children_subsys, + NULL, +}; + +static int __init configfs_example_init(void) +{ + int ret; + int i; + struct configfs_subsystem *subsys; + + for (i = 0; example_subsys[i]; i++) { + subsys = example_subsys[i]; + + config_group_init(&subsys->su_group); + mutex_init(&subsys->su_mutex); + ret = configfs_register_subsystem(subsys); + if (ret) { + printk(KERN_ERR "Error %d while registering subsystem %s\n", + ret, + subsys->su_group.cg_item.ci_namebuf); + goto out_unregister; + } + } + + return 0; + +out_unregister: + for (i--; i >= 0; i--) + configfs_unregister_subsystem(example_subsys[i]); + + return ret; +} + +static void __exit configfs_example_exit(void) +{ + int i; + + for (i = 0; example_subsys[i]; i++) + configfs_unregister_subsystem(example_subsys[i]); +} + +module_init(configfs_example_init); +module_exit(configfs_example_exit); +MODULE_LICENSE("GPL"); -- cgit v1.2.3-71-gd317 From 0d0f4aab4e4d290138a4ae7f2ef8469e48c9a669 Mon Sep 17 00:00:00 2001 From: Andrey Ryabinin Date: Wed, 7 Oct 2015 14:39:55 +0300 Subject: lockd: get rid of reference-counted NSM RPC clients Currently we have reference-counted per-net NSM RPC client which created on the first monitor request and destroyed after the last unmonitor request. It's needed because RPC client need to know 'utsname()->nodename', but utsname() might be NULL when nsm_unmonitor() called. So instead of holding the rpc client we could just save nodename in struct nlm_host and pass it to the rpc_create(). Thus ther is no need in keeping rpc client until last unmonitor request. We could create separate RPC clients for each monitor/unmonitor requests. Signed-off-by: Andrey Ryabinin Signed-off-by: J. Bruce Fields --- fs/lockd/host.c | 1 + fs/lockd/mon.c | 89 ++++++++------------------------------------- fs/lockd/netns.h | 3 -- fs/lockd/svc.c | 1 - include/linux/lockd/lockd.h | 1 + 5 files changed, 17 insertions(+), 78 deletions(-) (limited to 'include') diff --git a/fs/lockd/host.c b/fs/lockd/host.c index b5f3c3ab0d5f..d716c9993a26 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -161,6 +161,7 @@ static struct nlm_host *nlm_alloc_host(struct nlm_lookup_host_info *ni, host->h_nsmhandle = nsm; host->h_addrbuf = nsm->sm_addrbuf; host->net = ni->net; + strlcpy(host->nodename, utsname()->nodename, sizeof(host->nodename)); out: return host; diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index 6c05cd17e520..19166d4a8d31 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -42,7 +42,7 @@ struct nsm_args { u32 proc; char *mon_name; - char *nodename; + const char *nodename; }; struct nsm_res { @@ -86,69 +86,18 @@ static struct rpc_clnt *nsm_create(struct net *net, const char *nodename) return rpc_create(&args); } -static struct rpc_clnt *nsm_client_set(struct lockd_net *ln, - struct rpc_clnt *clnt) -{ - spin_lock(&ln->nsm_clnt_lock); - if (ln->nsm_users == 0) { - if (clnt == NULL) - goto out; - ln->nsm_clnt = clnt; - } - clnt = ln->nsm_clnt; - ln->nsm_users++; -out: - spin_unlock(&ln->nsm_clnt_lock); - return clnt; -} - -static struct rpc_clnt *nsm_client_get(struct net *net, const char *nodename) -{ - struct rpc_clnt *clnt, *new; - struct lockd_net *ln = net_generic(net, lockd_net_id); - - clnt = nsm_client_set(ln, NULL); - if (clnt != NULL) - goto out; - - clnt = new = nsm_create(net, nodename); - if (IS_ERR(clnt)) - goto out; - - clnt = nsm_client_set(ln, new); - if (clnt != new) - rpc_shutdown_client(new); -out: - return clnt; -} - -static void nsm_client_put(struct net *net) -{ - struct lockd_net *ln = net_generic(net, lockd_net_id); - struct rpc_clnt *clnt = NULL; - - spin_lock(&ln->nsm_clnt_lock); - ln->nsm_users--; - if (ln->nsm_users == 0) { - clnt = ln->nsm_clnt; - ln->nsm_clnt = NULL; - } - spin_unlock(&ln->nsm_clnt_lock); - if (clnt != NULL) - rpc_shutdown_client(clnt); -} - static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res, - struct rpc_clnt *clnt) + const struct nlm_host *host) { int status; + struct rpc_clnt *clnt; struct nsm_args args = { .priv = &nsm->sm_priv, .prog = NLM_PROGRAM, .vers = 3, .proc = NLMPROC_NSM_NOTIFY, .mon_name = nsm->sm_mon_name, - .nodename = clnt->cl_nodename, + .nodename = host->nodename, }; struct rpc_message msg = { .rpc_argp = &args, @@ -157,6 +106,13 @@ static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res, memset(res, 0, sizeof(*res)); + clnt = nsm_create(host->net, host->nodename); + if (IS_ERR(clnt)) { + dprintk("lockd: failed to create NSM upcall transport, " + "status=%ld, net=%p\n", PTR_ERR(clnt), host->net); + return PTR_ERR(clnt); + } + msg.rpc_proc = &clnt->cl_procinfo[proc]; status = rpc_call_sync(clnt, &msg, RPC_TASK_SOFTCONN); if (status == -ECONNREFUSED) { @@ -170,6 +126,8 @@ static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res, status); else status = 0; + + rpc_shutdown_client(clnt); return status; } @@ -189,32 +147,19 @@ int nsm_monitor(const struct nlm_host *host) struct nsm_handle *nsm = host->h_nsmhandle; struct nsm_res res; int status; - struct rpc_clnt *clnt; - const char *nodename = NULL; dprintk("lockd: nsm_monitor(%s)\n", nsm->sm_name); if (nsm->sm_monitored) return 0; - if (host->h_rpcclnt) - nodename = host->h_rpcclnt->cl_nodename; - /* * Choose whether to record the caller_name or IP address of * this peer in the local rpc.statd's database. */ nsm->sm_mon_name = nsm_use_hostnames ? nsm->sm_name : nsm->sm_addrbuf; - clnt = nsm_client_get(host->net, nodename); - if (IS_ERR(clnt)) { - status = PTR_ERR(clnt); - dprintk("lockd: failed to create NSM upcall transport, " - "status=%d, net=%p\n", status, host->net); - return status; - } - - status = nsm_mon_unmon(nsm, NSMPROC_MON, &res, clnt); + status = nsm_mon_unmon(nsm, NSMPROC_MON, &res, host); if (unlikely(res.status != 0)) status = -EIO; if (unlikely(status < 0)) { @@ -246,11 +191,9 @@ void nsm_unmonitor(const struct nlm_host *host) if (atomic_read(&nsm->sm_count) == 1 && nsm->sm_monitored && !nsm->sm_sticky) { - struct lockd_net *ln = net_generic(host->net, lockd_net_id); - dprintk("lockd: nsm_unmonitor(%s)\n", nsm->sm_name); - status = nsm_mon_unmon(nsm, NSMPROC_UNMON, &res, ln->nsm_clnt); + status = nsm_mon_unmon(nsm, NSMPROC_UNMON, &res, host); if (res.status != 0) status = -EIO; if (status < 0) @@ -258,8 +201,6 @@ void nsm_unmonitor(const struct nlm_host *host) nsm->sm_name); else nsm->sm_monitored = 0; - - nsm_client_put(host->net); } } diff --git a/fs/lockd/netns.h b/fs/lockd/netns.h index 89fe011b1335..5426189406c1 100644 --- a/fs/lockd/netns.h +++ b/fs/lockd/netns.h @@ -12,9 +12,6 @@ struct lockd_net { struct delayed_work grace_period_end; struct lock_manager lockd_manager; - spinlock_t nsm_clnt_lock; - unsigned int nsm_users; - struct rpc_clnt *nsm_clnt; struct list_head nsm_handles; }; diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c index 0dff13f41808..5f31ebd96c06 100644 --- a/fs/lockd/svc.c +++ b/fs/lockd/svc.c @@ -592,7 +592,6 @@ static int lockd_init_net(struct net *net) INIT_DELAYED_WORK(&ln->grace_period_end, grace_ender); INIT_LIST_HEAD(&ln->lockd_manager.list); ln->lockd_manager.block_opens = false; - spin_lock_init(&ln->nsm_clnt_lock); INIT_LIST_HEAD(&ln->nsm_handles); return 0; } diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index fd3b65bf51b5..c15373894a42 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -68,6 +68,7 @@ struct nlm_host { struct nsm_handle *h_nsmhandle; /* NSM status handle */ char *h_addrbuf; /* address eyecatcher */ struct net *net; /* host net */ + char nodename[UNX_MAXNODENAME + 1]; }; /* -- cgit v1.2.3-71-gd317 From 778620364ef525e83597a6edee4d0a69db67fd3d Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Fri, 16 Oct 2015 08:59:08 +1100 Subject: sunrpc/cache: make cache flushing more reliable. The caches used to store sunrpc authentication information can be flushed by writing a timestamp to a file in /proc. This timestamp has a one-second resolution and any entry in cache that was last_refreshed *before* that time is treated as expired. This is problematic as it is not possible to reliably flush the cache without interrupting NFS service. If the current time is written to the "flush" file, any entry that was added since the current second started will still be treated as valid. If one second beyond than the current time is written to the file then no entries can be valid until the second ticks over. This will mean that no NFS request will be handled for up to 1 second. To resolve this issue we make two changes: 1/ treat an entry as expired if the timestamp when it was last_refreshed is before *or the same as* the expiry time. This means that current code which writes out the current time will now flush the cache reliably. 2/ when a new entry in added to the cache - set the last_refresh timestamp to 1 second *beyond* the current flush time, when that not in the past. This ensures that newly added entries will always be valid. Now that we have a very reliable way to flush the cache, and also since we are using "since-boot" timestamps which are monotonic, change cache_purge() to set the smallest future flush_time which will work, and leave it there: don't revert to '1'. Also disable the setting of the 'flush_time' far into the future. That has never been useful and is now awkward as it would cause last_refresh times to be strange. Finally: if a request is made to set the 'flush_time' to the current second, assume the intent is to flush the cache and advance it, if necessary, to 1 second beyond the current 'flush_time' so that all active entries will be deemed to be expired. As part of this we need to add a 'cache_detail' arg to cache_init() and cache_fresh_locked() so they can find the current ->flush_time. Signed-off-by: NeilBrown Reported-by: Olaf Kirch Signed-off-by: J. Bruce Fields --- include/linux/sunrpc/cache.h | 16 ++++++++----- net/sunrpc/cache.c | 53 +++++++++++++++++++++++++++++++++----------- 2 files changed, 51 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h index 03d3b4c92d9f..ed03c9f7f908 100644 --- a/include/linux/sunrpc/cache.h +++ b/include/linux/sunrpc/cache.h @@ -48,8 +48,10 @@ struct cache_head { struct hlist_node cache_list; time_t expiry_time; /* After time time, don't use the data */ - time_t last_refresh; /* If CACHE_PENDING, this is when upcall - * was sent, else this is when update was received + time_t last_refresh; /* If CACHE_PENDING, this is when upcall was + * sent, else this is when update was + * received, though it is alway set to + * be *after* ->flush_time. */ struct kref ref; unsigned long flags; @@ -105,8 +107,12 @@ struct cache_detail { /* fields below this comment are for internal use * and should not be touched by cache owners */ - time_t flush_time; /* flush all cache items with last_refresh - * earlier than this */ + time_t flush_time; /* flush all cache items with + * last_refresh at or earlier + * than this. last_refresh + * is never set at or earlier + * than this. + */ struct list_head others; time_t nextcheck; int entries; @@ -203,7 +209,7 @@ static inline void cache_put(struct cache_head *h, struct cache_detail *cd) static inline int cache_is_expired(struct cache_detail *detail, struct cache_head *h) { return (h->expiry_time < seconds_since_boot()) || - (detail->flush_time > h->last_refresh); + (detail->flush_time >= h->last_refresh); } extern int cache_check(struct cache_detail *detail, diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 4a2340a54401..5e4f815c2b34 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -41,13 +41,16 @@ static bool cache_defer_req(struct cache_req *req, struct cache_head *item); static void cache_revisit_request(struct cache_head *item); -static void cache_init(struct cache_head *h) +static void cache_init(struct cache_head *h, struct cache_detail *detail) { time_t now = seconds_since_boot(); INIT_HLIST_NODE(&h->cache_list); h->flags = 0; kref_init(&h->ref); h->expiry_time = now + CACHE_NEW_EXPIRY; + if (now <= detail->flush_time) + /* ensure it isn't already expired */ + now = detail->flush_time + 1; h->last_refresh = now; } @@ -81,7 +84,7 @@ struct cache_head *sunrpc_cache_lookup(struct cache_detail *detail, * we might get lose if we need to * cache_put it soon. */ - cache_init(new); + cache_init(new, detail); detail->init(new, key); write_lock(&detail->hash_lock); @@ -116,10 +119,15 @@ EXPORT_SYMBOL_GPL(sunrpc_cache_lookup); static void cache_dequeue(struct cache_detail *detail, struct cache_head *ch); -static void cache_fresh_locked(struct cache_head *head, time_t expiry) +static void cache_fresh_locked(struct cache_head *head, time_t expiry, + struct cache_detail *detail) { + time_t now = seconds_since_boot(); + if (now <= detail->flush_time) + /* ensure it isn't immediately treated as expired */ + now = detail->flush_time + 1; head->expiry_time = expiry; - head->last_refresh = seconds_since_boot(); + head->last_refresh = now; smp_wmb(); /* paired with smp_rmb() in cache_is_valid() */ set_bit(CACHE_VALID, &head->flags); } @@ -149,7 +157,7 @@ struct cache_head *sunrpc_cache_update(struct cache_detail *detail, set_bit(CACHE_NEGATIVE, &old->flags); else detail->update(old, new); - cache_fresh_locked(old, new->expiry_time); + cache_fresh_locked(old, new->expiry_time, detail); write_unlock(&detail->hash_lock); cache_fresh_unlocked(old, detail); return old; @@ -162,7 +170,7 @@ struct cache_head *sunrpc_cache_update(struct cache_detail *detail, cache_put(old, detail); return NULL; } - cache_init(tmp); + cache_init(tmp, detail); detail->init(tmp, old); write_lock(&detail->hash_lock); @@ -173,8 +181,8 @@ struct cache_head *sunrpc_cache_update(struct cache_detail *detail, hlist_add_head(&tmp->cache_list, &detail->hash_table[hash]); detail->entries++; cache_get(tmp); - cache_fresh_locked(tmp, new->expiry_time); - cache_fresh_locked(old, 0); + cache_fresh_locked(tmp, new->expiry_time, detail); + cache_fresh_locked(old, 0, detail); write_unlock(&detail->hash_lock); cache_fresh_unlocked(tmp, detail); cache_fresh_unlocked(old, detail); @@ -219,7 +227,8 @@ static int try_to_negate_entry(struct cache_detail *detail, struct cache_head *h rv = cache_is_valid(h); if (rv == -EAGAIN) { set_bit(CACHE_NEGATIVE, &h->flags); - cache_fresh_locked(h, seconds_since_boot()+CACHE_NEW_EXPIRY); + cache_fresh_locked(h, seconds_since_boot()+CACHE_NEW_EXPIRY, + detail); rv = -ENOENT; } write_unlock(&detail->hash_lock); @@ -487,10 +496,13 @@ EXPORT_SYMBOL_GPL(cache_flush); void cache_purge(struct cache_detail *detail) { - detail->flush_time = LONG_MAX; + time_t now = seconds_since_boot(); + if (detail->flush_time >= now) + now = detail->flush_time + 1; + /* 'now' is the maximum value any 'last_refresh' can have */ + detail->flush_time = now; detail->nextcheck = seconds_since_boot(); cache_flush(); - detail->flush_time = 1; } EXPORT_SYMBOL_GPL(cache_purge); @@ -1436,6 +1448,7 @@ static ssize_t write_flush(struct file *file, const char __user *buf, { char tbuf[20]; char *bp, *ep; + time_t then, now; if (*ppos || count > sizeof(tbuf)-1) return -EINVAL; @@ -1447,8 +1460,22 @@ static ssize_t write_flush(struct file *file, const char __user *buf, return -EINVAL; bp = tbuf; - cd->flush_time = get_expiry(&bp); - cd->nextcheck = seconds_since_boot(); + then = get_expiry(&bp); + now = seconds_since_boot(); + cd->nextcheck = now; + /* Can only set flush_time to 1 second beyond "now", or + * possibly 1 second beyond flushtime. This is because + * flush_time never goes backwards so it mustn't get too far + * ahead of time. + */ + if (then >= now) { + /* Want to flush everything, so behave like cache_purge() */ + if (cd->flush_time >= now) + now = cd->flush_time + 1; + then = now; + } + + cd->flush_time = then; cache_flush(); *ppos += count; -- cgit v1.2.3-71-gd317 From a76caf55e5b356ba20a5a43ac4d9f7a04b20941d Mon Sep 17 00:00:00 2001 From: Ørjan Eide Date: Thu, 10 Sep 2015 18:09:30 +0100 Subject: thermal: Add devfreq cooling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add a generic thermal cooling device for devfreq, that is similar to cpu_cooling. The device must use devfreq. In order to use the power extension of the cooling device, it must have registered its OPPs using the OPP library. Cc: Zhang Rui Cc: Eduardo Valentin Signed-off-by: Javi Merino Signed-off-by: Ørjan Eide Signed-off-by: Eduardo Valentin --- drivers/thermal/Kconfig | 14 + drivers/thermal/Makefile | 3 + drivers/thermal/devfreq_cooling.c | 563 ++++++++++++++++++++++++++++++++++++++ include/linux/devfreq_cooling.h | 81 ++++++ 4 files changed, 661 insertions(+) create mode 100644 drivers/thermal/devfreq_cooling.c create mode 100644 include/linux/devfreq_cooling.h (limited to 'include') diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index 5aabc4bc0d75..90629f69bb22 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -147,6 +147,20 @@ config CLOCK_THERMAL device that is configured to use this cooling mechanism will be controlled to reduce clock frequency whenever temperature is high. +config DEVFREQ_THERMAL + bool "Generic device cooling support" + depends on PM_DEVFREQ + depends on PM_OPP + help + This implements the generic devfreq cooling mechanism through + frequency reduction for devices using devfreq. + + This will throttle the device by limiting the maximum allowed DVFS + frequency corresponding to the cooling level. + + In order to use the power extensions of the cooling device, + devfreq should use the simple_ondemand governor. + If you want this support, you should say Y here. config THERMAL_EMULATION diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index 26f160809959..cfae6a654793 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -22,6 +22,9 @@ thermal_sys-$(CONFIG_CPU_THERMAL) += cpu_cooling.o # clock cooling thermal_sys-$(CONFIG_CLOCK_THERMAL) += clock_cooling.o +# devfreq cooling +thermal_sys-$(CONFIG_DEVFREQ_THERMAL) += devfreq_cooling.o + # platform thermal drivers obj-$(CONFIG_QCOM_SPMI_TEMP_ALARM) += qcom-spmi-temp-alarm.o obj-$(CONFIG_SPEAR_THERMAL) += spear_thermal.o diff --git a/drivers/thermal/devfreq_cooling.c b/drivers/thermal/devfreq_cooling.c new file mode 100644 index 000000000000..a032c5d5c374 --- /dev/null +++ b/drivers/thermal/devfreq_cooling.c @@ -0,0 +1,563 @@ +/* + * devfreq_cooling: Thermal cooling device implementation for devices using + * devfreq + * + * Copyright (C) 2014-2015 ARM Limited + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * TODO: + * - If OPPs are added or removed after devfreq cooling has + * registered, the devfreq cooling won't react to it. + */ + +#include +#include +#include +#include +#include +#include + +static DEFINE_MUTEX(devfreq_lock); +static DEFINE_IDR(devfreq_idr); + +/** + * struct devfreq_cooling_device - Devfreq cooling device + * @id: unique integer value corresponding to each + * devfreq_cooling_device registered. + * @cdev: Pointer to associated thermal cooling device. + * @devfreq: Pointer to associated devfreq device. + * @cooling_state: Current cooling state. + * @power_table: Pointer to table with maximum power draw for each + * cooling state. State is the index into the table, and + * the power is in mW. + * @freq_table: Pointer to a table with the frequencies sorted in descending + * order. You can index the table by cooling device state + * @freq_table_size: Size of the @freq_table and @power_table + * @power_ops: Pointer to devfreq_cooling_power, used to generate the + * @power_table. + */ +struct devfreq_cooling_device { + int id; + struct thermal_cooling_device *cdev; + struct devfreq *devfreq; + unsigned long cooling_state; + u32 *power_table; + u32 *freq_table; + size_t freq_table_size; + struct devfreq_cooling_power *power_ops; +}; + +/** + * get_idr - function to get a unique id. + * @idr: struct idr * handle used to create a id. + * @id: int * value generated by this function. + * + * This function will populate @id with an unique + * id, using the idr API. + * + * Return: 0 on success, an error code on failure. + */ +static int get_idr(struct idr *idr, int *id) +{ + int ret; + + mutex_lock(&devfreq_lock); + ret = idr_alloc(idr, NULL, 0, 0, GFP_KERNEL); + mutex_unlock(&devfreq_lock); + if (unlikely(ret < 0)) + return ret; + *id = ret; + + return 0; +} + +/** + * release_idr - function to free the unique id. + * @idr: struct idr * handle used for creating the id. + * @id: int value representing the unique id. + */ +static void release_idr(struct idr *idr, int id) +{ + mutex_lock(&devfreq_lock); + idr_remove(idr, id); + mutex_unlock(&devfreq_lock); +} + +/** + * partition_enable_opps() - disable all opps above a given state + * @dfc: Pointer to devfreq we are operating on + * @cdev_state: cooling device state we're setting + * + * Go through the OPPs of the device, enabling all OPPs until + * @cdev_state and disabling those frequencies above it. + */ +static int partition_enable_opps(struct devfreq_cooling_device *dfc, + unsigned long cdev_state) +{ + int i; + struct device *dev = dfc->devfreq->dev.parent; + + for (i = 0; i < dfc->freq_table_size; i++) { + struct dev_pm_opp *opp; + int ret = 0; + unsigned int freq = dfc->freq_table[i]; + bool want_enable = i >= cdev_state ? true : false; + + rcu_read_lock(); + opp = dev_pm_opp_find_freq_exact(dev, freq, !want_enable); + rcu_read_unlock(); + + if (PTR_ERR(opp) == -ERANGE) + continue; + else if (IS_ERR(opp)) + return PTR_ERR(opp); + + if (want_enable) + ret = dev_pm_opp_enable(dev, freq); + else + ret = dev_pm_opp_disable(dev, freq); + + if (ret) + return ret; + } + + return 0; +} + +static int devfreq_cooling_get_max_state(struct thermal_cooling_device *cdev, + unsigned long *state) +{ + struct devfreq_cooling_device *dfc = cdev->devdata; + + *state = dfc->freq_table_size - 1; + + return 0; +} + +static int devfreq_cooling_get_cur_state(struct thermal_cooling_device *cdev, + unsigned long *state) +{ + struct devfreq_cooling_device *dfc = cdev->devdata; + + *state = dfc->cooling_state; + + return 0; +} + +static int devfreq_cooling_set_cur_state(struct thermal_cooling_device *cdev, + unsigned long state) +{ + struct devfreq_cooling_device *dfc = cdev->devdata; + struct devfreq *df = dfc->devfreq; + struct device *dev = df->dev.parent; + int ret; + + if (state == dfc->cooling_state) + return 0; + + dev_dbg(dev, "Setting cooling state %lu\n", state); + + if (state >= dfc->freq_table_size) + return -EINVAL; + + ret = partition_enable_opps(dfc, state); + if (ret) + return ret; + + dfc->cooling_state = state; + + return 0; +} + +/** + * freq_get_state() - get the cooling state corresponding to a frequency + * @dfc: Pointer to devfreq cooling device + * @freq: frequency in Hz + * + * Return: the cooling state associated with the @freq, or + * THERMAL_CSTATE_INVALID if it wasn't found. + */ +static unsigned long +freq_get_state(struct devfreq_cooling_device *dfc, unsigned long freq) +{ + int i; + + for (i = 0; i < dfc->freq_table_size; i++) { + if (dfc->freq_table[i] == freq) + return i; + } + + return THERMAL_CSTATE_INVALID; +} + +/** + * get_static_power() - calculate the static power + * @dfc: Pointer to devfreq cooling device + * @freq: Frequency in Hz + * + * Calculate the static power in milliwatts using the supplied + * get_static_power(). The current voltage is calculated using the + * OPP library. If no get_static_power() was supplied, assume the + * static power is negligible. + */ +static unsigned long +get_static_power(struct devfreq_cooling_device *dfc, unsigned long freq) +{ + struct devfreq *df = dfc->devfreq; + struct device *dev = df->dev.parent; + unsigned long voltage; + struct dev_pm_opp *opp; + + if (!dfc->power_ops->get_static_power) + return 0; + + rcu_read_lock(); + + opp = dev_pm_opp_find_freq_exact(dev, freq, true); + if (IS_ERR(opp) && (PTR_ERR(opp) == -ERANGE)) + opp = dev_pm_opp_find_freq_exact(dev, freq, false); + + voltage = dev_pm_opp_get_voltage(opp) / 1000; /* mV */ + + rcu_read_unlock(); + + if (voltage == 0) { + dev_warn_ratelimited(dev, + "Failed to get voltage for frequency %lu: %ld\n", + freq, IS_ERR(opp) ? PTR_ERR(opp) : 0); + return 0; + } + + return dfc->power_ops->get_static_power(voltage); +} + +/** + * get_dynamic_power - calculate the dynamic power + * @dfc: Pointer to devfreq cooling device + * @freq: Frequency in Hz + * @voltage: Voltage in millivolts + * + * Calculate the dynamic power in milliwatts consumed by the device at + * frequency @freq and voltage @voltage. If the get_dynamic_power() + * was supplied as part of the devfreq_cooling_power struct, then that + * function is used. Otherwise, a simple power model (Pdyn = Coeff * + * Voltage^2 * Frequency) is used. + */ +static unsigned long +get_dynamic_power(struct devfreq_cooling_device *dfc, unsigned long freq, + unsigned long voltage) +{ + unsigned long power; + u32 freq_mhz; + struct devfreq_cooling_power *dfc_power = dfc->power_ops; + + if (dfc_power->get_dynamic_power) + return dfc_power->get_dynamic_power(freq, voltage); + + freq_mhz = freq / 1000000; + power = (u64)dfc_power->dyn_power_coeff * freq_mhz * voltage * voltage; + do_div(power, 1000000000); + + return power; +} + +static int devfreq_cooling_get_requested_power(struct thermal_cooling_device *cdev, + struct thermal_zone_device *tz, + u32 *power) +{ + struct devfreq_cooling_device *dfc = cdev->devdata; + struct devfreq *df = dfc->devfreq; + struct devfreq_dev_status *status = &df->last_status; + unsigned long state; + unsigned long freq = status->current_frequency; + u32 dyn_power, static_power; + + /* Get dynamic power for state */ + state = freq_get_state(dfc, freq); + if (state == THERMAL_CSTATE_INVALID) + return -EAGAIN; + + dyn_power = dfc->power_table[state]; + + /* Scale dynamic power for utilization */ + dyn_power = (dyn_power * status->busy_time) / status->total_time; + + /* Get static power */ + static_power = get_static_power(dfc, freq); + + *power = dyn_power + static_power; + + return 0; +} + +static int devfreq_cooling_state2power(struct thermal_cooling_device *cdev, + struct thermal_zone_device *tz, + unsigned long state, + u32 *power) +{ + struct devfreq_cooling_device *dfc = cdev->devdata; + unsigned long freq; + u32 static_power; + + if (state < 0 || state >= dfc->freq_table_size) + return -EINVAL; + + freq = dfc->freq_table[state]; + static_power = get_static_power(dfc, freq); + + *power = dfc->power_table[state] + static_power; + return 0; +} + +static int devfreq_cooling_power2state(struct thermal_cooling_device *cdev, + struct thermal_zone_device *tz, + u32 power, unsigned long *state) +{ + struct devfreq_cooling_device *dfc = cdev->devdata; + struct devfreq *df = dfc->devfreq; + struct devfreq_dev_status *status = &df->last_status; + unsigned long freq = status->current_frequency; + unsigned long busy_time; + s32 dyn_power; + u32 static_power; + int i; + + static_power = get_static_power(dfc, freq); + + dyn_power = power - static_power; + dyn_power = dyn_power > 0 ? dyn_power : 0; + + /* Scale dynamic power for utilization */ + busy_time = status->busy_time ?: 1; + dyn_power = (dyn_power * status->total_time) / busy_time; + + /* + * Find the first cooling state that is within the power + * budget for dynamic power. + */ + for (i = 0; i < dfc->freq_table_size - 1; i++) + if (dyn_power >= dfc->power_table[i]) + break; + + *state = i; + return 0; +} + +static struct thermal_cooling_device_ops devfreq_cooling_ops = { + .get_max_state = devfreq_cooling_get_max_state, + .get_cur_state = devfreq_cooling_get_cur_state, + .set_cur_state = devfreq_cooling_set_cur_state, +}; + +/** + * devfreq_cooling_gen_tables() - Generate power and freq tables. + * @dfc: Pointer to devfreq cooling device. + * + * Generate power and frequency tables: the power table hold the + * device's maximum power usage at each cooling state (OPP). The + * static and dynamic power using the appropriate voltage and + * frequency for the state, is acquired from the struct + * devfreq_cooling_power, and summed to make the maximum power draw. + * + * The frequency table holds the frequencies in descending order. + * That way its indexed by cooling device state. + * + * The tables are malloced, and pointers put in dfc. They must be + * freed when unregistering the devfreq cooling device. + * + * Return: 0 on success, negative error code on failure. + */ +static int devfreq_cooling_gen_tables(struct devfreq_cooling_device *dfc) +{ + struct devfreq *df = dfc->devfreq; + struct device *dev = df->dev.parent; + int ret, num_opps; + unsigned long freq; + u32 *power_table = NULL; + u32 *freq_table; + int i; + + num_opps = dev_pm_opp_get_opp_count(dev); + + if (dfc->power_ops) { + power_table = kcalloc(num_opps, sizeof(*power_table), + GFP_KERNEL); + if (!power_table) + ret = -ENOMEM; + } + + freq_table = kcalloc(num_opps, sizeof(*freq_table), + GFP_KERNEL); + if (!freq_table) { + ret = -ENOMEM; + goto free_power_table; + } + + for (i = 0, freq = ULONG_MAX; i < num_opps; i++, freq--) { + unsigned long power_dyn, voltage; + struct dev_pm_opp *opp; + + rcu_read_lock(); + + opp = dev_pm_opp_find_freq_floor(dev, &freq); + if (IS_ERR(opp)) { + rcu_read_unlock(); + ret = PTR_ERR(opp); + goto free_tables; + } + + voltage = dev_pm_opp_get_voltage(opp) / 1000; /* mV */ + + rcu_read_unlock(); + + if (dfc->power_ops) { + power_dyn = get_dynamic_power(dfc, freq, voltage); + + dev_dbg(dev, "Dynamic power table: %lu MHz @ %lu mV: %lu = %lu mW\n", + freq / 1000000, voltage, power_dyn, power_dyn); + + power_table[i] = power_dyn; + } + + freq_table[i] = freq; + } + + if (dfc->power_ops) + dfc->power_table = power_table; + + dfc->freq_table = freq_table; + dfc->freq_table_size = num_opps; + + return 0; + +free_tables: + kfree(freq_table); +free_power_table: + kfree(power_table); + + return ret; +} + +/** + * of_devfreq_cooling_register_power() - Register devfreq cooling device, + * with OF and power information. + * @np: Pointer to OF device_node. + * @df: Pointer to devfreq device. + * @dfc_power: Pointer to devfreq_cooling_power. + * + * Register a devfreq cooling device. The available OPPs must be + * registered on the device. + * + * If @dfc_power is provided, the cooling device is registered with the + * power extensions. For the power extensions to work correctly, + * devfreq should use the simple_ondemand governor, other governors + * are not currently supported. + */ +struct devfreq_cooling_device * +of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df, + struct devfreq_cooling_power *dfc_power) +{ + struct thermal_cooling_device *cdev; + struct devfreq_cooling_device *dfc; + char dev_name[THERMAL_NAME_LENGTH]; + int err; + + dfc = kzalloc(sizeof(*dfc), GFP_KERNEL); + if (!dfc) + return ERR_PTR(-ENOMEM); + + dfc->devfreq = df; + + if (dfc_power) { + dfc->power_ops = dfc_power; + + devfreq_cooling_ops.get_requested_power = + devfreq_cooling_get_requested_power; + devfreq_cooling_ops.state2power = devfreq_cooling_state2power; + devfreq_cooling_ops.power2state = devfreq_cooling_power2state; + } + + err = devfreq_cooling_gen_tables(dfc); + if (err) + goto free_dfc; + + err = get_idr(&devfreq_idr, &dfc->id); + if (err) + goto free_tables; + + snprintf(dev_name, sizeof(dev_name), "thermal-devfreq-%d", dfc->id); + + cdev = thermal_of_cooling_device_register(np, dev_name, dfc, + &devfreq_cooling_ops); + if (IS_ERR(cdev)) { + err = PTR_ERR(cdev); + dev_err(df->dev.parent, + "Failed to register devfreq cooling device (%d)\n", + err); + goto release_idr; + } + + dfc->cdev = cdev; + + return dfc; + +release_idr: + release_idr(&devfreq_idr, dfc->id); +free_tables: + kfree(dfc->power_table); + kfree(dfc->freq_table); +free_dfc: + kfree(dfc); + + return ERR_PTR(err); +} +EXPORT_SYMBOL_GPL(of_devfreq_cooling_register_power); + +/** + * of_devfreq_cooling_register() - Register devfreq cooling device, + * with OF information. + * @np: Pointer to OF device_node. + * @df: Pointer to devfreq device. + */ +struct devfreq_cooling_device * +of_devfreq_cooling_register(struct device_node *np, struct devfreq *df) +{ + return of_devfreq_cooling_register_power(np, df, NULL); +} +EXPORT_SYMBOL_GPL(of_devfreq_cooling_register); + +/** + * devfreq_cooling_register() - Register devfreq cooling device. + * @df: Pointer to devfreq device. + */ +struct devfreq_cooling_device *devfreq_cooling_register(struct devfreq *df) +{ + return of_devfreq_cooling_register(NULL, df); +} +EXPORT_SYMBOL_GPL(devfreq_cooling_register); + +/** + * devfreq_cooling_unregister() - Unregister devfreq cooling device. + * @dfc: Pointer to devfreq cooling device to unregister. + */ +void devfreq_cooling_unregister(struct devfreq_cooling_device *dfc) +{ + if (!dfc) + return; + + thermal_cooling_device_unregister(dfc->cdev); + release_idr(&devfreq_idr, dfc->id); + kfree(dfc->power_table); + kfree(dfc->freq_table); + + kfree(dfc); +} +EXPORT_SYMBOL_GPL(devfreq_cooling_unregister); diff --git a/include/linux/devfreq_cooling.h b/include/linux/devfreq_cooling.h new file mode 100644 index 000000000000..ee5f0ec9290b --- /dev/null +++ b/include/linux/devfreq_cooling.h @@ -0,0 +1,81 @@ +/* + * devfreq_cooling: Thermal cooling device implementation for devices using + * devfreq + * + * Copyright (C) 2014-2015 ARM Limited + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __DEVFREQ_COOLING_H__ +#define __DEVFREQ_COOLING_H__ + +#include +#include + +#ifdef CONFIG_DEVFREQ_THERMAL + +/** + * struct devfreq_cooling_power - Devfreq cooling power ops + * @get_static_power: Take voltage, in mV, and return the static power + * in mW. If NULL, the static power is assumed + * to be 0. + * @get_dynamic_power: Take voltage, in mV, and frequency, in HZ, and + * return the dynamic power draw in mW. If NULL, + * a simple power model is used. + * @dyn_power_coeff: Coefficient for the simple dynamic power model in + * mW/(MHz mV mV). + * If get_dynamic_power() is NULL, then the + * dynamic power is calculated as + * @dyn_power_coeff * frequency * voltage^2 + */ +struct devfreq_cooling_power { + unsigned long (*get_static_power)(unsigned long voltage); + unsigned long (*get_dynamic_power)(unsigned long freq, + unsigned long voltage); + unsigned long dyn_power_coeff; +}; + +struct devfreq_cooling_device * +of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df, + struct devfreq_cooling_power *dfc_power); +struct devfreq_cooling_device * +of_devfreq_cooling_register(struct device_node *np, struct devfreq *df); +struct devfreq_cooling_device *devfreq_cooling_register(struct devfreq *df); +void devfreq_cooling_unregister(struct devfreq_cooling_device *dfc); + +#else /* !CONFIG_DEVFREQ_THERMAL */ + +struct devfreq_cooling_device * +of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df, + struct devfreq_cooling_power *dfc_power) +{ + return ERR_PTR(-EINVAL); +} + +static inline struct devfreq_cooling_device * +of_devfreq_cooling_register(struct device_node *np, struct devfreq *df) +{ + return ERR_PTR(-EINVAL); +} + +static inline struct devfreq_cooling_device * +devfreq_cooling_register(struct devfreq *df) +{ + return ERR_PTR(-EINVAL); +} + +static inline void +devfreq_cooling_unregister(struct devfreq_cooling_device *dfc) +{ +} + +#endif /* CONFIG_DEVFREQ_THERMAL */ +#endif /* __DEVFREQ_COOLING_H__ */ -- cgit v1.2.3-71-gd317 From 9876b1a4431a3f0959c70e1d817ecab6440cb2e6 Mon Sep 17 00:00:00 2001 From: Javi Merino Date: Thu, 10 Sep 2015 18:09:31 +0100 Subject: devfreq_cooling: add trace information Tracing is useful for debugging and performance tuning. Add similar traces to what's present in the cpu cooling device. Cc: Zhang Rui Cc: Eduardo Valentin Cc: Steven Rostedt Cc: Ingo Molnar Signed-off-by: Javi Merino Signed-off-by: Eduardo Valentin --- drivers/thermal/devfreq_cooling.c | 6 +++++ include/trace/events/thermal.h | 53 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+) (limited to 'include') diff --git a/drivers/thermal/devfreq_cooling.c b/drivers/thermal/devfreq_cooling.c index a032c5d5c374..a27206815066 100644 --- a/drivers/thermal/devfreq_cooling.c +++ b/drivers/thermal/devfreq_cooling.c @@ -25,6 +25,8 @@ #include #include +#include + static DEFINE_MUTEX(devfreq_lock); static DEFINE_IDR(devfreq_idr); @@ -293,6 +295,9 @@ static int devfreq_cooling_get_requested_power(struct thermal_cooling_device *cd /* Get static power */ static_power = get_static_power(dfc, freq); + trace_thermal_power_devfreq_get_power(cdev, status, freq, dyn_power, + static_power); + *power = dyn_power + static_power; return 0; @@ -348,6 +353,7 @@ static int devfreq_cooling_power2state(struct thermal_cooling_device *cdev, break; *state = i; + trace_thermal_power_devfreq_limit(cdev, freq, *state, power); return 0; } diff --git a/include/trace/events/thermal.h b/include/trace/events/thermal.h index 8b1f80682b80..5738bb3e2343 100644 --- a/include/trace/events/thermal.h +++ b/include/trace/events/thermal.h @@ -4,6 +4,7 @@ #if !defined(_TRACE_THERMAL_H) || defined(TRACE_HEADER_MULTI_READ) #define _TRACE_THERMAL_H +#include #include #include @@ -135,6 +136,58 @@ TRACE_EVENT(thermal_power_cpu_limit, __entry->power) ); +TRACE_EVENT(thermal_power_devfreq_get_power, + TP_PROTO(struct thermal_cooling_device *cdev, + struct devfreq_dev_status *status, unsigned long freq, + u32 dynamic_power, u32 static_power), + + TP_ARGS(cdev, status, freq, dynamic_power, static_power), + + TP_STRUCT__entry( + __string(type, cdev->type ) + __field(unsigned long, freq ) + __field(u32, load ) + __field(u32, dynamic_power ) + __field(u32, static_power ) + ), + + TP_fast_assign( + __assign_str(type, cdev->type); + __entry->freq = freq; + __entry->load = (100 * status->busy_time) / status->total_time; + __entry->dynamic_power = dynamic_power; + __entry->static_power = static_power; + ), + + TP_printk("type=%s freq=%lu load=%u dynamic_power=%u static_power=%u", + __get_str(type), __entry->freq, + __entry->load, __entry->dynamic_power, __entry->static_power) +); + +TRACE_EVENT(thermal_power_devfreq_limit, + TP_PROTO(struct thermal_cooling_device *cdev, unsigned long freq, + unsigned long cdev_state, u32 power), + + TP_ARGS(cdev, freq, cdev_state, power), + + TP_STRUCT__entry( + __string(type, cdev->type) + __field(unsigned int, freq ) + __field(unsigned long, cdev_state) + __field(u32, power ) + ), + + TP_fast_assign( + __assign_str(type, cdev->type); + __entry->freq = freq; + __entry->cdev_state = cdev_state; + __entry->power = power; + ), + + TP_printk("type=%s freq=%u cdev_state=%lu power=%u", + __get_str(type), __entry->freq, __entry->cdev_state, + __entry->power) +); #endif /* _TRACE_THERMAL_H */ /* This part must be outside protection */ -- cgit v1.2.3-71-gd317 From 3c99c2cef75eb5bfc05c5728e4560f3ee656d47e Mon Sep 17 00:00:00 2001 From: Javi Merino Date: Mon, 2 Nov 2015 19:03:03 +0000 Subject: thermal: devfreq_cooling: use a thermal_cooling_device for register and unregister Be consistent with what other cooling devices do and return a struct thermal_cooling_device * on register. Also, for the unregister, accept a struct thermal_cooling_device * as parameter. Cc: Zhang Rui Cc: Eduardo Valentin Signed-off-by: Javi Merino Signed-off-by: Eduardo Valentin --- drivers/thermal/devfreq_cooling.c | 16 ++++++++++------ include/linux/devfreq_cooling.h | 16 ++++++++-------- 2 files changed, 18 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/drivers/thermal/devfreq_cooling.c b/drivers/thermal/devfreq_cooling.c index a27206815066..31e40a9a9fd0 100644 --- a/drivers/thermal/devfreq_cooling.c +++ b/drivers/thermal/devfreq_cooling.c @@ -467,7 +467,7 @@ free_power_table: * devfreq should use the simple_ondemand governor, other governors * are not currently supported. */ -struct devfreq_cooling_device * +struct thermal_cooling_device * of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df, struct devfreq_cooling_power *dfc_power) { @@ -513,7 +513,7 @@ of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df, dfc->cdev = cdev; - return dfc; + return cdev; release_idr: release_idr(&devfreq_idr, dfc->id); @@ -533,7 +533,7 @@ EXPORT_SYMBOL_GPL(of_devfreq_cooling_register_power); * @np: Pointer to OF device_node. * @df: Pointer to devfreq device. */ -struct devfreq_cooling_device * +struct thermal_cooling_device * of_devfreq_cooling_register(struct device_node *np, struct devfreq *df) { return of_devfreq_cooling_register_power(np, df, NULL); @@ -544,7 +544,7 @@ EXPORT_SYMBOL_GPL(of_devfreq_cooling_register); * devfreq_cooling_register() - Register devfreq cooling device. * @df: Pointer to devfreq device. */ -struct devfreq_cooling_device *devfreq_cooling_register(struct devfreq *df) +struct thermal_cooling_device *devfreq_cooling_register(struct devfreq *df) { return of_devfreq_cooling_register(NULL, df); } @@ -554,11 +554,15 @@ EXPORT_SYMBOL_GPL(devfreq_cooling_register); * devfreq_cooling_unregister() - Unregister devfreq cooling device. * @dfc: Pointer to devfreq cooling device to unregister. */ -void devfreq_cooling_unregister(struct devfreq_cooling_device *dfc) +void devfreq_cooling_unregister(struct thermal_cooling_device *cdev) { - if (!dfc) + struct devfreq_cooling_device *dfc; + + if (!cdev) return; + dfc = cdev->devdata; + thermal_cooling_device_unregister(dfc->cdev); release_idr(&devfreq_idr, dfc->id); kfree(dfc->power_table); diff --git a/include/linux/devfreq_cooling.h b/include/linux/devfreq_cooling.h index ee5f0ec9290b..7adf6cc4b305 100644 --- a/include/linux/devfreq_cooling.h +++ b/include/linux/devfreq_cooling.h @@ -43,37 +43,37 @@ struct devfreq_cooling_power { unsigned long dyn_power_coeff; }; -struct devfreq_cooling_device * +struct thermal_cooling_device * of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df, struct devfreq_cooling_power *dfc_power); -struct devfreq_cooling_device * +struct thermal_cooling_device * of_devfreq_cooling_register(struct device_node *np, struct devfreq *df); -struct devfreq_cooling_device *devfreq_cooling_register(struct devfreq *df); -void devfreq_cooling_unregister(struct devfreq_cooling_device *dfc); +struct thermal_cooling_device *devfreq_cooling_register(struct devfreq *df); +void devfreq_cooling_unregister(struct thermal_cooling_device *dfc); #else /* !CONFIG_DEVFREQ_THERMAL */ -struct devfreq_cooling_device * +struct thermal_cooling_device * of_devfreq_cooling_register_power(struct device_node *np, struct devfreq *df, struct devfreq_cooling_power *dfc_power) { return ERR_PTR(-EINVAL); } -static inline struct devfreq_cooling_device * +static inline struct thermal_cooling_device * of_devfreq_cooling_register(struct device_node *np, struct devfreq *df) { return ERR_PTR(-EINVAL); } -static inline struct devfreq_cooling_device * +static inline struct thermal_cooling_device * devfreq_cooling_register(struct devfreq *df) { return ERR_PTR(-EINVAL); } static inline void -devfreq_cooling_unregister(struct devfreq_cooling_device *dfc) +devfreq_cooling_unregister(struct thermal_cooling_device *dfc) { } -- cgit v1.2.3-71-gd317 From 79dbd1baa651cece408e68a1b445f3628c4b5bdc Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Mon, 26 Oct 2015 22:23:56 +0100 Subject: libceph: msg signing callouts don't need con argument We can use msg->con instead - at the point we sign an outgoing message or check the signature on the incoming one, msg->con is always set. We wouldn't know how to sign a message without an associated session (i.e. msg->con == NULL) and being able to sign a message using an explicitly provided authorizer is of no use. Signed-off-by: Ilya Dryomov --- fs/ceph/mds_client.c | 14 ++++++++------ include/linux/ceph/messenger.h | 5 ++--- net/ceph/messenger.c | 4 ++-- net/ceph/osd_client.c | 14 ++++++++------ 4 files changed, 20 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 89838a226fe9..e7b130a637f9 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -3942,17 +3942,19 @@ static struct ceph_msg *mds_alloc_msg(struct ceph_connection *con, return msg; } -static int sign_message(struct ceph_connection *con, struct ceph_msg *msg) +static int mds_sign_message(struct ceph_msg *msg) { - struct ceph_mds_session *s = con->private; + struct ceph_mds_session *s = msg->con->private; struct ceph_auth_handshake *auth = &s->s_auth; + return ceph_auth_sign_message(auth, msg); } -static int check_message_signature(struct ceph_connection *con, struct ceph_msg *msg) +static int mds_check_message_signature(struct ceph_msg *msg) { - struct ceph_mds_session *s = con->private; + struct ceph_mds_session *s = msg->con->private; struct ceph_auth_handshake *auth = &s->s_auth; + return ceph_auth_check_message_signature(auth, msg); } @@ -3965,8 +3967,8 @@ static const struct ceph_connection_operations mds_con_ops = { .invalidate_authorizer = invalidate_authorizer, .peer_reset = peer_reset, .alloc_msg = mds_alloc_msg, - .sign_message = sign_message, - .check_message_signature = check_message_signature, + .sign_message = mds_sign_message, + .check_message_signature = mds_check_message_signature, }; /* eof */ diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h index b2371d9b51fa..3687ff0f0133 100644 --- a/include/linux/ceph/messenger.h +++ b/include/linux/ceph/messenger.h @@ -43,10 +43,9 @@ struct ceph_connection_operations { struct ceph_msg * (*alloc_msg) (struct ceph_connection *con, struct ceph_msg_header *hdr, int *skip); - int (*sign_message) (struct ceph_connection *con, struct ceph_msg *msg); - int (*check_message_signature) (struct ceph_connection *con, - struct ceph_msg *msg); + int (*sign_message) (struct ceph_msg *msg); + int (*check_message_signature) (struct ceph_msg *msg); }; /* use format string %s%d */ diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index fce6ad636613..805f6f82139f 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -1205,7 +1205,7 @@ static void prepare_write_message_footer(struct ceph_connection *con) con->out_kvec[v].iov_base = &m->footer; if (con->peer_features & CEPH_FEATURE_MSG_AUTH) { if (con->ops->sign_message) - con->ops->sign_message(con, m); + con->ops->sign_message(m); else m->footer.sig = 0; con->out_kvec[v].iov_len = sizeof(m->footer); @@ -2422,7 +2422,7 @@ static int read_partial_message(struct ceph_connection *con) } if (need_sign && con->ops->check_message_signature && - con->ops->check_message_signature(con, m)) { + con->ops->check_message_signature(m)) { pr_err("read_partial_message %p signature check failed\n", m); return -EBADMSG; } diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 191bc21cecea..118e4ce37ecc 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -2979,17 +2979,19 @@ static int invalidate_authorizer(struct ceph_connection *con) return ceph_monc_validate_auth(&osdc->client->monc); } -static int sign_message(struct ceph_connection *con, struct ceph_msg *msg) +static int osd_sign_message(struct ceph_msg *msg) { - struct ceph_osd *o = con->private; + struct ceph_osd *o = msg->con->private; struct ceph_auth_handshake *auth = &o->o_auth; + return ceph_auth_sign_message(auth, msg); } -static int check_message_signature(struct ceph_connection *con, struct ceph_msg *msg) +static int osd_check_message_signature(struct ceph_msg *msg) { - struct ceph_osd *o = con->private; + struct ceph_osd *o = msg->con->private; struct ceph_auth_handshake *auth = &o->o_auth; + return ceph_auth_check_message_signature(auth, msg); } @@ -3001,7 +3003,7 @@ static const struct ceph_connection_operations osd_con_ops = { .verify_authorizer_reply = verify_authorizer_reply, .invalidate_authorizer = invalidate_authorizer, .alloc_msg = alloc_msg, - .sign_message = sign_message, - .check_message_signature = check_message_signature, + .sign_message = osd_sign_message, + .check_message_signature = osd_check_message_signature, .fault = osd_reset, }; -- cgit v1.2.3-71-gd317 From 859bff51dc5e92ddfb5eb6f17b8040d9311095bb Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Wed, 28 Oct 2015 23:50:58 +0100 Subject: libceph: stop duplicating client fields in messenger supported_features and required_features serve no purpose at all, while nocrc and tcp_nodelay belong to ceph_options::flags. Signed-off-by: Ilya Dryomov --- include/linux/ceph/libceph.h | 1 + include/linux/ceph/messenger.h | 11 +---------- net/ceph/ceph_common.c | 6 +----- net/ceph/messenger.c | 26 +++++++++----------------- 4 files changed, 12 insertions(+), 32 deletions(-) (limited to 'include') diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index 397c5cd09794..a7caafe03d3c 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -137,6 +137,7 @@ struct ceph_client { #endif }; +#define from_msgr(ms) container_of(ms, struct ceph_client, msgr) /* diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h index 3687ff0f0133..71b1d6cdcb5d 100644 --- a/include/linux/ceph/messenger.h +++ b/include/linux/ceph/messenger.h @@ -57,8 +57,6 @@ struct ceph_messenger { atomic_t stopping; possible_net_t net; - bool nocrc; - bool tcp_nodelay; /* * the global_seq counts connections i (attempt to) initiate @@ -66,9 +64,6 @@ struct ceph_messenger { */ u32 global_seq; spinlock_t global_seq_lock; - - u64 supported_features; - u64 required_features; }; enum ceph_msg_data_type { @@ -267,11 +262,7 @@ extern void ceph_msgr_exit(void); extern void ceph_msgr_flush(void); extern void ceph_messenger_init(struct ceph_messenger *msgr, - struct ceph_entity_addr *myaddr, - u64 supported_features, - u64 required_features, - bool nocrc, - bool tcp_nodelay); + struct ceph_entity_addr *myaddr); extern void ceph_messenger_fini(struct ceph_messenger *msgr); extern void ceph_con_init(struct ceph_connection *con, void *private, diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c index 54a00d66509e..d1494d1a8592 100644 --- a/net/ceph/ceph_common.c +++ b/net/ceph/ceph_common.c @@ -596,11 +596,7 @@ struct ceph_client *ceph_create_client(struct ceph_options *opt, void *private, if (ceph_test_opt(client, MYIP)) myaddr = &client->options->my_addr; - ceph_messenger_init(&client->msgr, myaddr, - client->supported_features, - client->required_features, - ceph_test_opt(client, NOCRC), - ceph_test_opt(client, TCP_NODELAY)); + ceph_messenger_init(&client->msgr, myaddr); /* subsystems */ err = ceph_monc_init(&client->monc, client); diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 805f6f82139f..11108076bac3 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -509,7 +509,7 @@ static int ceph_tcp_connect(struct ceph_connection *con) return ret; } - if (con->msgr->tcp_nodelay) { + if (ceph_test_opt(from_msgr(con->msgr), TCP_NODELAY)) { int optval = 1; ret = kernel_setsockopt(sock, SOL_TCP, TCP_NODELAY, @@ -1432,7 +1432,8 @@ static int prepare_write_connect(struct ceph_connection *con) dout("prepare_write_connect %p cseq=%d gseq=%d proto=%d\n", con, con->connect_seq, global_seq, proto); - con->out_connect.features = cpu_to_le64(con->msgr->supported_features); + con->out_connect.features = + cpu_to_le64(from_msgr(con->msgr)->supported_features); con->out_connect.host_type = cpu_to_le32(CEPH_ENTITY_TYPE_CLIENT); con->out_connect.connect_seq = cpu_to_le32(con->connect_seq); con->out_connect.global_seq = cpu_to_le32(global_seq); @@ -1527,7 +1528,7 @@ static int write_partial_message_data(struct ceph_connection *con) { struct ceph_msg *msg = con->out_msg; struct ceph_msg_data_cursor *cursor = &msg->cursor; - bool do_datacrc = !con->msgr->nocrc; + bool do_datacrc = !ceph_test_opt(from_msgr(con->msgr), NOCRC); u32 crc; dout("%s %p msg %p\n", __func__, con, msg); @@ -2005,8 +2006,8 @@ static int process_banner(struct ceph_connection *con) static int process_connect(struct ceph_connection *con) { - u64 sup_feat = con->msgr->supported_features; - u64 req_feat = con->msgr->required_features; + u64 sup_feat = from_msgr(con->msgr)->supported_features; + u64 req_feat = from_msgr(con->msgr)->required_features; u64 server_feat = ceph_sanitize_features( le64_to_cpu(con->in_reply.features)); int ret; @@ -2232,7 +2233,7 @@ static int read_partial_msg_data(struct ceph_connection *con) { struct ceph_msg *msg = con->in_msg; struct ceph_msg_data_cursor *cursor = &msg->cursor; - const bool do_datacrc = !con->msgr->nocrc; + bool do_datacrc = !ceph_test_opt(from_msgr(con->msgr), NOCRC); struct page *page; size_t page_offset; size_t length; @@ -2277,7 +2278,7 @@ static int read_partial_message(struct ceph_connection *con) int end; int ret; unsigned int front_len, middle_len, data_len; - bool do_datacrc = !con->msgr->nocrc; + bool do_datacrc = !ceph_test_opt(from_msgr(con->msgr), NOCRC); bool need_sign = (con->peer_features & CEPH_FEATURE_MSG_AUTH); u64 seq; u32 crc; @@ -2951,15 +2952,8 @@ static void con_fault(struct ceph_connection *con) * initialize a new messenger instance */ void ceph_messenger_init(struct ceph_messenger *msgr, - struct ceph_entity_addr *myaddr, - u64 supported_features, - u64 required_features, - bool nocrc, - bool tcp_nodelay) + struct ceph_entity_addr *myaddr) { - msgr->supported_features = supported_features; - msgr->required_features = required_features; - spin_lock_init(&msgr->global_seq_lock); if (myaddr) @@ -2969,8 +2963,6 @@ void ceph_messenger_init(struct ceph_messenger *msgr, msgr->inst.addr.type = 0; get_random_bytes(&msgr->inst.addr.nonce, sizeof(msgr->inst.addr.nonce)); encode_my_addr(msgr); - msgr->nocrc = nocrc; - msgr->tcp_nodelay = tcp_nodelay; atomic_set(&msgr->stopping, 0); write_pnet(&msgr->net, get_net(current->nsproxy->net_ns)); -- cgit v1.2.3-71-gd317 From a51983e4dd2d4d63912aab939f657c4cd476e21a Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Wed, 28 Oct 2015 23:52:06 +0100 Subject: libceph: add nocephx_sign_messages option Support for message signing was merged into 3.19, along with nocephx_require_signatures option. But, all that option does is allow the kernel client to talk to clusters that don't support MSG_AUTH feature bit. That's pretty useless, given that it's been supported since bobtail. Meanwhile, if one disables message signing on the server side with "cephx sign messages = false", it becomes impossible to use the kernel client since it expects messages to be signed if MSG_AUTH was negotiated. Add nocephx_sign_messages option to support this use case. Signed-off-by: Ilya Dryomov --- include/linux/ceph/libceph.h | 3 ++- net/ceph/auth_x.c | 7 +++++++ net/ceph/ceph_common.c | 12 ++++++++++++ net/ceph/messenger.c | 2 +- 4 files changed, 22 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h index a7caafe03d3c..3e3799cdc6e6 100644 --- a/include/linux/ceph/libceph.h +++ b/include/linux/ceph/libceph.h @@ -29,8 +29,9 @@ #define CEPH_OPT_NOSHARE (1<<1) /* don't share client with other sbs */ #define CEPH_OPT_MYIP (1<<2) /* specified my ip */ #define CEPH_OPT_NOCRC (1<<3) /* no data crc on writes */ -#define CEPH_OPT_NOMSGAUTH (1<<4) /* not require cephx message signature */ +#define CEPH_OPT_NOMSGAUTH (1<<4) /* don't require msg signing feat */ #define CEPH_OPT_TCP_NODELAY (1<<5) /* TCP_NODELAY on TCP sockets */ +#define CEPH_OPT_NOMSGSIGN (1<<6) /* don't sign msgs */ #define CEPH_OPT_DEFAULT (CEPH_OPT_TCP_NODELAY) diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c index 3a544ca6b5ce..10d87753ed87 100644 --- a/net/ceph/auth_x.c +++ b/net/ceph/auth_x.c @@ -8,6 +8,7 @@ #include #include +#include #include #include "crypto.h" @@ -698,6 +699,9 @@ static int ceph_x_sign_message(struct ceph_auth_handshake *auth, { int ret; + if (ceph_test_opt(from_msgr(msg->con->msgr), NOMSGSIGN)) + return 0; + ret = calcu_signature((struct ceph_x_authorizer *)auth->authorizer, msg, &msg->footer.sig); if (ret < 0) @@ -712,6 +716,9 @@ static int ceph_x_check_message_signature(struct ceph_auth_handshake *auth, __le64 sig_check; int ret; + if (ceph_test_opt(from_msgr(msg->con->msgr), NOMSGSIGN)) + return 0; + ret = calcu_signature((struct ceph_x_authorizer *)auth->authorizer, msg, &sig_check); if (ret < 0) diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c index d1494d1a8592..6b4d3a1684de 100644 --- a/net/ceph/ceph_common.c +++ b/net/ceph/ceph_common.c @@ -245,6 +245,8 @@ enum { Opt_nocrc, Opt_cephx_require_signatures, Opt_nocephx_require_signatures, + Opt_cephx_sign_messages, + Opt_nocephx_sign_messages, Opt_tcp_nodelay, Opt_notcp_nodelay, }; @@ -267,6 +269,8 @@ static match_table_t opt_tokens = { {Opt_nocrc, "nocrc"}, {Opt_cephx_require_signatures, "cephx_require_signatures"}, {Opt_nocephx_require_signatures, "nocephx_require_signatures"}, + {Opt_cephx_sign_messages, "cephx_sign_messages"}, + {Opt_nocephx_sign_messages, "nocephx_sign_messages"}, {Opt_tcp_nodelay, "tcp_nodelay"}, {Opt_notcp_nodelay, "notcp_nodelay"}, {-1, NULL} @@ -491,6 +495,12 @@ ceph_parse_options(char *options, const char *dev_name, case Opt_nocephx_require_signatures: opt->flags |= CEPH_OPT_NOMSGAUTH; break; + case Opt_cephx_sign_messages: + opt->flags &= ~CEPH_OPT_NOMSGSIGN; + break; + case Opt_nocephx_sign_messages: + opt->flags |= CEPH_OPT_NOMSGSIGN; + break; case Opt_tcp_nodelay: opt->flags |= CEPH_OPT_TCP_NODELAY; @@ -534,6 +544,8 @@ int ceph_print_client_options(struct seq_file *m, struct ceph_client *client) seq_puts(m, "nocrc,"); if (opt->flags & CEPH_OPT_NOMSGAUTH) seq_puts(m, "nocephx_require_signatures,"); + if (opt->flags & CEPH_OPT_NOMSGSIGN) + seq_puts(m, "nocephx_sign_messages,"); if ((opt->flags & CEPH_OPT_TCP_NODELAY) == 0) seq_puts(m, "notcp_nodelay,"); diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 11108076bac3..0cc5608b2c8f 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -2677,7 +2677,7 @@ more: if (ret <= 0) { switch (ret) { case -EBADMSG: - con->error_msg = "bad crc"; + con->error_msg = "bad crc/signature"; /* fall through */ case -EBADE: ret = -EIO; -- cgit v1.2.3-71-gd317 From 033291eccbdb1b70ffc02641edae19ac825dc75d Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Thu, 15 Oct 2015 15:08:48 -0600 Subject: vfio: Include No-IOMMU mode There is really no way to safely give a user full access to a DMA capable device without an IOMMU to protect the host system. There is also no way to provide DMA translation, for use cases such as device assignment to virtual machines. However, there are still those users that want userspace drivers even under those conditions. The UIO driver exists for this use case, but does not provide the degree of device access and programming that VFIO has. In an effort to avoid code duplication, this introduces a No-IOMMU mode for VFIO. This mode requires building VFIO with CONFIG_VFIO_NOIOMMU and enabling the "enable_unsafe_noiommu_mode" option on the vfio driver. This should make it very clear that this mode is not safe. Additionally, CAP_SYS_RAWIO privileges are necessary to work with groups and containers using this mode. Groups making use of this support are named /dev/vfio/noiommu-$GROUP and can only make use of the special VFIO_NOIOMMU_IOMMU for the container. Use of this mode, specifically binding a device without a native IOMMU group to a VFIO bus driver will taint the kernel and should therefore not be considered supported. This patch includes no-iommu support for the vfio-pci bus driver only. Signed-off-by: Alex Williamson Acked-by: Michael S. Tsirkin --- drivers/vfio/Kconfig | 15 ++++ drivers/vfio/pci/vfio_pci.c | 8 +- drivers/vfio/vfio.c | 186 ++++++++++++++++++++++++++++++++++++++++++-- include/linux/vfio.h | 3 + include/uapi/linux/vfio.h | 7 ++ 5 files changed, 209 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig index 454017928ed0..b6d3cdc2791b 100644 --- a/drivers/vfio/Kconfig +++ b/drivers/vfio/Kconfig @@ -31,5 +31,20 @@ menuconfig VFIO If you don't know what to do here, say N. +menuconfig VFIO_NOIOMMU + bool "VFIO No-IOMMU support" + depends on VFIO + help + VFIO is built on the ability to isolate devices using the IOMMU. + Only with an IOMMU can userspace access to DMA capable devices be + considered secure. VFIO No-IOMMU mode enables IOMMU groups for + devices without IOMMU backing for the purpose of re-using the VFIO + infrastructure in a non-secure mode. Use of this mode will result + in an unsupportable kernel and will therefore taint the kernel. + Device assignment to virtual machines is also not possible with + this mode since there is no IOMMU to provide DMA translation. + + If you don't know what to do here, say N. + source "drivers/vfio/pci/Kconfig" source "drivers/vfio/platform/Kconfig" diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 964ad572aaee..32b88bd2c82c 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -940,13 +940,13 @@ static int vfio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (pdev->hdr_type != PCI_HEADER_TYPE_NORMAL) return -EINVAL; - group = iommu_group_get(&pdev->dev); + group = vfio_iommu_group_get(&pdev->dev); if (!group) return -EINVAL; vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); if (!vdev) { - iommu_group_put(group); + vfio_iommu_group_put(group, &pdev->dev); return -ENOMEM; } @@ -957,7 +957,7 @@ static int vfio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) ret = vfio_add_group_dev(&pdev->dev, &vfio_pci_ops, vdev); if (ret) { - iommu_group_put(group); + vfio_iommu_group_put(group, &pdev->dev); kfree(vdev); return ret; } @@ -993,7 +993,7 @@ static void vfio_pci_remove(struct pci_dev *pdev) if (!vdev) return; - iommu_group_put(pdev->dev.iommu_group); + vfio_iommu_group_put(pdev->dev.iommu_group, &pdev->dev); kfree(vdev); if (vfio_pci_is_vga(pdev)) { diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index ab056f7af54d..de632da2e22f 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -62,6 +62,7 @@ struct vfio_container { struct rw_semaphore group_lock; struct vfio_iommu_driver *iommu_driver; void *iommu_data; + bool noiommu; }; struct vfio_unbound_dev { @@ -84,6 +85,7 @@ struct vfio_group { struct list_head unbound_list; struct mutex unbound_lock; atomic_t opened; + bool noiommu; }; struct vfio_device { @@ -95,6 +97,147 @@ struct vfio_device { void *device_data; }; +#ifdef CONFIG_VFIO_NOIOMMU +static bool noiommu __read_mostly; +module_param_named(enable_unsafe_noiommu_support, + noiommu, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(enable_unsafe_noiommu_mode, "Enable UNSAFE, no-IOMMU mode. This mode provides no device isolation, no DMA translation, no host kernel protection, cannot be used for device assignment to virtual machines, requires RAWIO permissions, and will taint the kernel. If you do not know what this is for, step away. (default: false)"); +#endif + +/* + * vfio_iommu_group_{get,put} are only intended for VFIO bus driver probe + * and remove functions, any use cases other than acquiring the first + * reference for the purpose of calling vfio_add_group_dev() or removing + * that symmetric reference after vfio_del_group_dev() should use the raw + * iommu_group_{get,put} functions. In particular, vfio_iommu_group_put() + * removes the device from the dummy group and cannot be nested. + */ +struct iommu_group *vfio_iommu_group_get(struct device *dev) +{ + struct iommu_group *group; + int __maybe_unused ret; + + group = iommu_group_get(dev); + +#ifdef CONFIG_VFIO_NOIOMMU + /* + * With noiommu enabled, an IOMMU group will be created for a device + * that doesn't already have one and doesn't have an iommu_ops on their + * bus. We use iommu_present() again in the main code to detect these + * fake groups. + */ + if (group || !noiommu || iommu_present(dev->bus)) + return group; + + group = iommu_group_alloc(); + if (IS_ERR(group)) + return NULL; + + iommu_group_set_name(group, "vfio-noiommu"); + ret = iommu_group_add_device(group, dev); + iommu_group_put(group); + if (ret) + return NULL; + + /* + * Where to taint? At this point we've added an IOMMU group for a + * device that is not backed by iommu_ops, therefore any iommu_ + * callback using iommu_ops can legitimately Oops. So, while we may + * be about to give a DMA capable device to a user without IOMMU + * protection, which is clearly taint-worthy, let's go ahead and do + * it here. + */ + add_taint(TAINT_USER, LOCKDEP_STILL_OK); + dev_warn(dev, "Adding kernel taint for vfio-noiommu group on device\n"); +#endif + + return group; +} +EXPORT_SYMBOL_GPL(vfio_iommu_group_get); + +void vfio_iommu_group_put(struct iommu_group *group, struct device *dev) +{ +#ifdef CONFIG_VFIO_NOIOMMU + if (!iommu_present(dev->bus)) + iommu_group_remove_device(dev); +#endif + + iommu_group_put(group); +} +EXPORT_SYMBOL_GPL(vfio_iommu_group_put); + +#ifdef CONFIG_VFIO_NOIOMMU +static void *vfio_noiommu_open(unsigned long arg) +{ + if (arg != VFIO_NOIOMMU_IOMMU) + return ERR_PTR(-EINVAL); + if (!capable(CAP_SYS_RAWIO)) + return ERR_PTR(-EPERM); + + return NULL; +} + +static void vfio_noiommu_release(void *iommu_data) +{ +} + +static long vfio_noiommu_ioctl(void *iommu_data, + unsigned int cmd, unsigned long arg) +{ + if (cmd == VFIO_CHECK_EXTENSION) + return arg == VFIO_NOIOMMU_IOMMU ? 1 : 0; + + return -ENOTTY; +} + +static int vfio_iommu_present(struct device *dev, void *unused) +{ + return iommu_present(dev->bus) ? 1 : 0; +} + +static int vfio_noiommu_attach_group(void *iommu_data, + struct iommu_group *iommu_group) +{ + return iommu_group_for_each_dev(iommu_group, NULL, + vfio_iommu_present) ? -EINVAL : 0; +} + +static void vfio_noiommu_detach_group(void *iommu_data, + struct iommu_group *iommu_group) +{ +} + +static struct vfio_iommu_driver_ops vfio_noiommu_ops = { + .name = "vfio-noiommu", + .owner = THIS_MODULE, + .open = vfio_noiommu_open, + .release = vfio_noiommu_release, + .ioctl = vfio_noiommu_ioctl, + .attach_group = vfio_noiommu_attach_group, + .detach_group = vfio_noiommu_detach_group, +}; + +static struct vfio_iommu_driver vfio_noiommu_driver = { + .ops = &vfio_noiommu_ops, +}; + +/* + * Wrap IOMMU drivers, the noiommu driver is the one and only driver for + * noiommu groups (and thus containers) and not available for normal groups. + */ +#define vfio_for_each_iommu_driver(con, pos) \ + for (pos = con->noiommu ? &vfio_noiommu_driver : \ + list_first_entry(&vfio.iommu_drivers_list, \ + struct vfio_iommu_driver, vfio_next); \ + (con->noiommu ? pos != NULL : \ + &pos->vfio_next != &vfio.iommu_drivers_list); \ + pos = con->noiommu ? NULL : list_next_entry(pos, vfio_next)) +#else +#define vfio_for_each_iommu_driver(con, pos) \ + list_for_each_entry(pos, &vfio.iommu_drivers_list, vfio_next) +#endif + + /** * IOMMU driver registration */ @@ -199,7 +342,8 @@ static void vfio_group_unlock_and_free(struct vfio_group *group) /** * Group objects - create, release, get, put, search */ -static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group) +static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group, + bool noiommu) { struct vfio_group *group, *tmp; struct device *dev; @@ -217,6 +361,7 @@ static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group) atomic_set(&group->container_users, 0); atomic_set(&group->opened, 0); group->iommu_group = iommu_group; + group->noiommu = noiommu; group->nb.notifier_call = vfio_iommu_group_notifier; @@ -252,7 +397,8 @@ static struct vfio_group *vfio_create_group(struct iommu_group *iommu_group) dev = device_create(vfio.class, NULL, MKDEV(MAJOR(vfio.group_devt), minor), - group, "%d", iommu_group_id(iommu_group)); + group, "%s%d", noiommu ? "noiommu-" : "", + iommu_group_id(iommu_group)); if (IS_ERR(dev)) { vfio_free_group_minor(minor); vfio_group_unlock_and_free(group); @@ -640,7 +786,8 @@ int vfio_add_group_dev(struct device *dev, group = vfio_group_get_from_iommu(iommu_group); if (!group) { - group = vfio_create_group(iommu_group); + group = vfio_create_group(iommu_group, + !iommu_present(dev->bus)); if (IS_ERR(group)) { iommu_group_put(iommu_group); return PTR_ERR(group); @@ -852,8 +999,7 @@ static long vfio_ioctl_check_extension(struct vfio_container *container, */ if (!driver) { mutex_lock(&vfio.iommu_drivers_lock); - list_for_each_entry(driver, &vfio.iommu_drivers_list, - vfio_next) { + vfio_for_each_iommu_driver(container, driver) { if (!try_module_get(driver->ops->owner)) continue; @@ -922,7 +1068,7 @@ static long vfio_ioctl_set_iommu(struct vfio_container *container, } mutex_lock(&vfio.iommu_drivers_lock); - list_for_each_entry(driver, &vfio.iommu_drivers_list, vfio_next) { + vfio_for_each_iommu_driver(container, driver) { void *data; if (!try_module_get(driver->ops->owner)) @@ -1187,6 +1333,9 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd) if (atomic_read(&group->container_users)) return -EINVAL; + if (group->noiommu && !capable(CAP_SYS_RAWIO)) + return -EPERM; + f = fdget(container_fd); if (!f.file) return -EBADF; @@ -1202,6 +1351,13 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd) down_write(&container->group_lock); + /* Real groups and fake groups cannot mix */ + if (!list_empty(&container->group_list) && + container->noiommu != group->noiommu) { + ret = -EPERM; + goto unlock_out; + } + driver = container->iommu_driver; if (driver) { ret = driver->ops->attach_group(container->iommu_data, @@ -1211,6 +1367,7 @@ static int vfio_group_set_container(struct vfio_group *group, int container_fd) } group->container = container; + container->noiommu = group->noiommu; list_add(&group->container_next, &container->group_list); /* Get a reference on the container and mark a user within the group */ @@ -1241,6 +1398,9 @@ static int vfio_group_get_device_fd(struct vfio_group *group, char *buf) !group->container->iommu_driver || !vfio_group_viable(group)) return -EINVAL; + if (group->noiommu && !capable(CAP_SYS_RAWIO)) + return -EPERM; + device = vfio_device_get_from_name(group, buf); if (!device) return -ENODEV; @@ -1283,6 +1443,10 @@ static int vfio_group_get_device_fd(struct vfio_group *group, char *buf) fd_install(ret, filep); + if (group->noiommu) + dev_warn(device->dev, "vfio-noiommu device opened by user " + "(%s:%d)\n", current->comm, task_pid_nr(current)); + return ret; } @@ -1371,6 +1535,11 @@ static int vfio_group_fops_open(struct inode *inode, struct file *filep) if (!group) return -ENODEV; + if (group->noiommu && !capable(CAP_SYS_RAWIO)) { + vfio_group_put(group); + return -EPERM; + } + /* Do we need multiple instances of the group open? Seems not. */ opened = atomic_cmpxchg(&group->opened, 0, 1); if (opened) { @@ -1533,6 +1702,11 @@ struct vfio_group *vfio_group_get_external_user(struct file *filep) if (!atomic_inc_not_zero(&group->container_users)) return ERR_PTR(-EINVAL); + if (group->noiommu) { + atomic_dec(&group->container_users); + return ERR_PTR(-EPERM); + } + if (!group->container->iommu_driver || !vfio_group_viable(group)) { atomic_dec(&group->container_users); diff --git a/include/linux/vfio.h b/include/linux/vfio.h index ddb440975382..610a86a892b8 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -44,6 +44,9 @@ struct vfio_device_ops { void (*request)(void *device_data, unsigned int count); }; +extern struct iommu_group *vfio_iommu_group_get(struct device *dev); +extern void vfio_iommu_group_put(struct iommu_group *group, struct device *dev); + extern int vfio_add_group_dev(struct device *dev, const struct vfio_device_ops *ops, void *device_data); diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 9fd7b5d8df2f..751b69f858c8 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -38,6 +38,13 @@ #define VFIO_SPAPR_TCE_v2_IOMMU 7 +/* + * The No-IOMMU IOMMU offers no translation or isolation for devices and + * supports no ioctls outside of VFIO_CHECK_EXTENSION. Use of VFIO's No-IOMMU + * code will taint the host kernel and should be used with extreme caution. + */ +#define VFIO_NOIOMMU_IOMMU 8 + /* * The IOCTL interface is designed for extensibility by embedding the * structure length (argsz) and flags into structures passed between -- cgit v1.2.3-71-gd317 From 6172180c6b37ea164bf8a9bad70bb348d0a16563 Mon Sep 17 00:00:00 2001 From: Tvrtko Ursulin Date: Wed, 23 Sep 2015 10:10:31 +0100 Subject: drm: Use userspace compatible type in fourcc_mod_code macro MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit __u64 should be used instead of u64. Feature originally added in: commit e3eb3250d84ef97b766312345774367b6a310db8 Author: Rob Clark Date: Thu Feb 5 14:41:52 2015 +0000 drm: add support for tiled/compressed/etc modifier in addfb2 Signed-off-by: Tvrtko Ursulin Cc: Rob Clark Cc: Daniel Stone Cc: Daniel Vetter Cc: dri-devel@lists.freedesktop.org Cc: stable@vger.kernel.org # v4.1+ Fixes: e3eb3250d84e ("drm: add support for tiled/compressed/etc modifier in addfb2") Reviewed-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1442999431-28568-1-git-send-email-tvrtko.ursulin@linux.intel.com Signed-off-by: Jani Nikula --- include/uapi/drm/drm_fourcc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 8c5e8b91a3cb..0b69a7753558 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -158,7 +158,7 @@ /* add more to the end as needed */ #define fourcc_mod_code(vendor, val) \ - ((((u64)DRM_FORMAT_MOD_VENDOR_## vendor) << 56) | (val & 0x00ffffffffffffffULL)) + ((((__u64)DRM_FORMAT_MOD_VENDOR_## vendor) << 56) | (val & 0x00ffffffffffffffULL)) /* * Format Modifier tokens: -- cgit v1.2.3-71-gd317 From 61b590b9ee4221173ad6990a1150c5c9db73564e Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Fri, 23 Oct 2015 12:43:18 +0200 Subject: netfilter: ingress: don't use nf_hook_list_active nf_hook_list_active() always returns true once at least one device has NF_INGRESS hook enabled. Thus, don't use this function. Instead, inverse the test and use the static key to elide list_empty test if no NF_INGRESS hooks are active. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter_ingress.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/netfilter_ingress.h b/include/linux/netfilter_ingress.h index 187feabe557c..ba7ce8805fe3 100644 --- a/include/linux/netfilter_ingress.h +++ b/include/linux/netfilter_ingress.h @@ -5,10 +5,13 @@ #include #ifdef CONFIG_NETFILTER_INGRESS -static inline int nf_hook_ingress_active(struct sk_buff *skb) +static inline bool nf_hook_ingress_active(const struct sk_buff *skb) { - return nf_hook_list_active(&skb->dev->nf_hooks_ingress, - NFPROTO_NETDEV, NF_NETDEV_INGRESS); +#ifdef HAVE_JUMP_LABEL + if (!static_key_false(&nf_hooks_needed[NFPROTO_NETDEV][NF_NETDEV_INGRESS])) + return false; +#endif + return !list_empty(&skb->dev->nf_hooks_ingress); } static inline int nf_hook_ingress(struct sk_buff *skb) -- cgit v1.2.3-71-gd317 From b4865988eab598e56e6e628b9b32441acd142b28 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Fri, 6 Nov 2015 18:35:57 +0100 Subject: netfilter: ingress: fix wrong input interface on hook The input and output interfaces in nf_hook_state_init() are flipped. This fixes iif matching on nftables. Reported-by: Patrick McHardy Signed-off-by: Pablo Neira Ayuso --- include/linux/netfilter_ingress.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/netfilter_ingress.h b/include/linux/netfilter_ingress.h index ba7ce8805fe3..5fcd375ef175 100644 --- a/include/linux/netfilter_ingress.h +++ b/include/linux/netfilter_ingress.h @@ -19,8 +19,8 @@ static inline int nf_hook_ingress(struct sk_buff *skb) struct nf_hook_state state; nf_hook_state_init(&state, &skb->dev->nf_hooks_ingress, - NF_NETDEV_INGRESS, INT_MIN, NFPROTO_NETDEV, NULL, - skb->dev, NULL, dev_net(skb->dev), NULL); + NF_NETDEV_INGRESS, INT_MIN, NFPROTO_NETDEV, + skb->dev, NULL, NULL, dev_net(skb->dev), NULL); return nf_hook_slow(skb, &state); } -- cgit v1.2.3-71-gd317 From d764c21c7b1aa5ce982eaa8400517d8004d30267 Mon Sep 17 00:00:00 2001 From: Jeremy Linton Date: Wed, 28 Oct 2015 15:50:46 -0700 Subject: ACPI: Honor ACPI _CCA attribute setting ACPI configurations can now mark devices as noncoherent, support that choice. NOTE: This is required to support USB on ARM Juno Development Board. Signed-off-by: Jeremy Linton Signed-off-by: Suravee Suthikulpanit Acked-by: Bjorn Helgaas Reviewed-by: Hanjun Guo Signed-off-by: Rafael J. Wysocki --- include/acpi/acpi_bus.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index e234725eadc7..8df990520304 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -407,7 +407,7 @@ static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent) * case 1. Do not support and disable DMA. * case 2. Support but rely on arch-specific cache maintenance for * non-coherence DMA operations. - * Currently, we implement case 1 above. + * Currently, we implement case 2 above. * * For the case when _CCA is missing (i.e. cca_seen=0) and * platform specifies ACPI_CCA_REQUIRED, we do not support DMA, @@ -415,7 +415,8 @@ static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent) * * See acpi_init_coherency() for more info. */ - if (adev->flags.coherent_dma) { + if (adev->flags.coherent_dma || + (adev->flags.cca_seen && IS_ENABLED(CONFIG_ARM64))) { ret = true; if (coherent) *coherent = adev->flags.coherent_dma; -- cgit v1.2.3-71-gd317 From 1b9863c6aa56d92126ec0d5c42eae25df52b7ca1 Mon Sep 17 00:00:00 2001 From: "Suthikulpanit, Suravee" Date: Wed, 28 Oct 2015 15:50:47 -0700 Subject: device property: Introducing enum dev_dma_attr A device could have one of the following DMA attributes: * DMA not supported * DMA non-coherent * DMA coherent So, this patch introduces enum dev_dma_attribute. This will be used by new APIs introduced in later patches. Signed-off-by: Suravee Suthikulpanit Acked-by: Bjorn Helgaas Reviewed-by: Hanjun Guo Signed-off-by: Rafael J. Wysocki --- include/linux/property.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/property.h b/include/linux/property.h index 463de52fe891..8eecf200bae5 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -27,6 +27,12 @@ enum dev_prop_type { DEV_PROP_MAX, }; +enum dev_dma_attr { + DEV_DMA_NOT_SUPPORTED, + DEV_DMA_NON_COHERENT, + DEV_DMA_COHERENT, +}; + bool device_property_present(struct device *dev, const char *propname); int device_property_read_u8_array(struct device *dev, const char *propname, u8 *val, size_t nval); -- cgit v1.2.3-71-gd317 From b84f196d963c3159329f72ca1913b08679004a43 Mon Sep 17 00:00:00 2001 From: "Suthikulpanit, Suravee" Date: Wed, 28 Oct 2015 15:50:48 -0700 Subject: ACPI: Adding DMA Attribute APIs for ACPI Device Adding acpi_get_dma_attr() to query DMA attributes of ACPI devices. It returns the enum dev_dma_attr, which communicates DMA information more clearly. This API replaces the acpi_check_dma(), which will be removed in subsequent patch. This patch also provides a convenient function, acpi_dma_supported(), to check DMA support of the specified ACPI device. Signed-off-by: Suravee Suthikulpanit Acked-by: Bjorn Helgaas Reviewed-by: Hanjun Guo Signed-off-by: Rafael J. Wysocki --- drivers/acpi/scan.c | 42 ++++++++++++++++++++++++++++++++++++++++++ include/acpi/acpi_bus.h | 3 +++ include/linux/acpi.h | 10 ++++++++++ 3 files changed, 55 insertions(+) (limited to 'include') diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index d1ce377db3e9..ed3d76fadccf 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1308,6 +1308,48 @@ void acpi_free_pnp_ids(struct acpi_device_pnp *pnp) kfree(pnp->unique_id); } +/** + * acpi_dma_supported - Check DMA support for the specified device. + * @adev: The pointer to acpi device + * + * Return false if DMA is not supported. Otherwise, return true + */ +bool acpi_dma_supported(struct acpi_device *adev) +{ + if (!adev) + return false; + + if (adev->flags.cca_seen) + return true; + + /* + * Per ACPI 6.0 sec 6.2.17, assume devices can do cache-coherent + * DMA on "Intel platforms". Presumably that includes all x86 and + * ia64, and other arches will set CONFIG_ACPI_CCA_REQUIRED=y. + */ + if (!IS_ENABLED(CONFIG_ACPI_CCA_REQUIRED)) + return true; + + return false; +} + +/** + * acpi_get_dma_attr - Check the supported DMA attr for the specified device. + * @adev: The pointer to acpi device + * + * Return enum dev_dma_attr. + */ +enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) +{ + if (!acpi_dma_supported(adev)) + return DEV_DMA_NOT_SUPPORTED; + + if (adev->flags.coherent_dma) + return DEV_DMA_COHERENT; + else + return DEV_DMA_NON_COHERENT; +} + static void acpi_init_coherency(struct acpi_device *adev) { unsigned long long cca = 0; diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 8df990520304..e56e6520edce 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -596,6 +596,9 @@ struct acpi_pci_root { /* helper */ +bool acpi_dma_supported(struct acpi_device *adev); +enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev); + struct acpi_device *acpi_find_child_device(struct acpi_device *parent, u64 address, bool check_children); int acpi_is_root_bridge(acpi_handle); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 496265b0f527..292af3b69ede 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -579,6 +579,16 @@ static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent) return false; } +static inline bool acpi_dma_supported(struct acpi_device *adev) +{ + return false; +} + +static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev) +{ + return DEV_DMA_NOT_SUPPORTED; +} + #define ACPI_PTR(_ptr) (NULL) #endif /* !CONFIG_ACPI */ -- cgit v1.2.3-71-gd317 From e5e558644bbb23cad03c586703331b8bcd9e0e6c Mon Sep 17 00:00:00 2001 From: "Suthikulpanit, Suravee" Date: Wed, 28 Oct 2015 15:50:49 -0700 Subject: device property: Adding DMA Attribute APIs for Generic Devices The function device_dma_is_coherent() does not sufficiently communicate device DMA attributes. Instead, this patch introduces device_get_dma_attr(), which returns enum dev_dma_attr. It replaces the acpi_check_dma(), which will be removed in subsequent patch. This also provides a convenient function, device_dma_supported(), to check DMA support of the specified device. Signed-off-by: Suravee Suthikulpanit Acked-by: Bjorn Helgaas Reviewed-by: Hanjun Guo Signed-off-by: Rafael J. Wysocki --- drivers/base/property.c | 29 +++++++++++++++++++++++++++++ include/linux/property.h | 4 ++++ 2 files changed, 33 insertions(+) (limited to 'include') diff --git a/drivers/base/property.c b/drivers/base/property.c index de40623bbd8a..05d57a2afa05 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -611,6 +611,35 @@ bool device_dma_is_coherent(struct device *dev) } EXPORT_SYMBOL_GPL(device_dma_is_coherent); +bool device_dma_supported(struct device *dev) +{ + /* For DT, this is always supported. + * For ACPI, this depends on CCA, which + * is determined by the acpi_dma_supported(). + */ + if (IS_ENABLED(CONFIG_OF) && dev->of_node) + return true; + + return acpi_dma_supported(ACPI_COMPANION(dev)); +} +EXPORT_SYMBOL_GPL(device_dma_supported); + +enum dev_dma_attr device_get_dma_attr(struct device *dev) +{ + enum dev_dma_attr attr = DEV_DMA_NOT_SUPPORTED; + + if (IS_ENABLED(CONFIG_OF) && dev->of_node) { + if (of_dma_is_coherent(dev->of_node)) + attr = DEV_DMA_COHERENT; + else + attr = DEV_DMA_NON_COHERENT; + } else + attr = acpi_get_dma_attr(ACPI_COMPANION(dev)); + + return attr; +} +EXPORT_SYMBOL_GPL(device_get_dma_attr); + /** * device_get_phy_mode - Get phy mode for given device * @dev: Pointer to the given device diff --git a/include/linux/property.h b/include/linux/property.h index 8eecf200bae5..7200490b7e6f 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -176,6 +176,10 @@ void device_add_property_set(struct device *dev, struct property_set *pset); bool device_dma_is_coherent(struct device *dev); +bool device_dma_supported(struct device *dev); + +enum dev_dma_attr device_get_dma_attr(struct device *dev); + int device_get_phy_mode(struct device *dev); void *device_get_mac_address(struct device *dev, char *addr, int alen); -- cgit v1.2.3-71-gd317 From ab3d527329f01dd63dc852041006d1a24895d116 Mon Sep 17 00:00:00 2001 From: "Suthikulpanit, Suravee" Date: Wed, 28 Oct 2015 15:50:51 -0700 Subject: device property: ACPI: Remove unused DMA APIs These DMA APIs are replaced with the newer versions, which return the enum dev_dma_attr. So, we can safely remove them. Signed-off-by: Suravee Suthikulpanit Acked-by: Bjorn Helgaas Reviewed-by: Hanjun Guo Signed-off-by: Rafael J. Wysocki --- drivers/base/property.c | 13 ------------- include/acpi/acpi_bus.h | 34 ---------------------------------- include/linux/acpi.h | 5 ----- include/linux/property.h | 2 -- 4 files changed, 54 deletions(-) (limited to 'include') diff --git a/drivers/base/property.c b/drivers/base/property.c index 05d57a2afa05..1325ff225cc4 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -598,19 +598,6 @@ unsigned int device_get_child_node_count(struct device *dev) } EXPORT_SYMBOL_GPL(device_get_child_node_count); -bool device_dma_is_coherent(struct device *dev) -{ - bool coherent = false; - - if (IS_ENABLED(CONFIG_OF) && dev->of_node) - coherent = of_dma_is_coherent(dev->of_node); - else - acpi_check_dma(ACPI_COMPANION(dev), &coherent); - - return coherent; -} -EXPORT_SYMBOL_GPL(device_dma_is_coherent); - bool device_dma_supported(struct device *dev) { /* For DT, this is always supported. diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index e56e6520edce..e45d58d6b0a7 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -390,40 +390,6 @@ struct acpi_data_node { struct completion kobj_done; }; -static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent) -{ - bool ret = false; - - if (!adev) - return ret; - - /** - * Currently, we only support _CCA=1 (i.e. coherent_dma=1) - * This should be equivalent to specifyig dma-coherent for - * a device in OF. - * - * For the case when _CCA=0 (i.e. coherent_dma=0 && cca_seen=1), - * There are two cases: - * case 1. Do not support and disable DMA. - * case 2. Support but rely on arch-specific cache maintenance for - * non-coherence DMA operations. - * Currently, we implement case 2 above. - * - * For the case when _CCA is missing (i.e. cca_seen=0) and - * platform specifies ACPI_CCA_REQUIRED, we do not support DMA, - * and fallback to arch-specific default handling. - * - * See acpi_init_coherency() for more info. - */ - if (adev->flags.coherent_dma || - (adev->flags.cca_seen && IS_ENABLED(CONFIG_ARM64))) { - ret = true; - if (coherent) - *coherent = adev->flags.coherent_dma; - } - return ret; -} - static inline bool is_acpi_node(struct fwnode_handle *fwnode) { return fwnode && (fwnode->type == FWNODE_ACPI diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 292af3b69ede..b5868300df75 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -574,11 +574,6 @@ static inline int acpi_device_modalias(struct device *dev, return -ENODEV; } -static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent) -{ - return false; -} - static inline bool acpi_dma_supported(struct acpi_device *adev) { return false; diff --git a/include/linux/property.h b/include/linux/property.h index 7200490b7e6f..0a3705a7c9f2 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -174,8 +174,6 @@ struct property_set { void device_add_property_set(struct device *dev, struct property_set *pset); -bool device_dma_is_coherent(struct device *dev); - bool device_dma_supported(struct device *dev); enum dev_dma_attr device_get_dma_attr(struct device *dev); -- cgit v1.2.3-71-gd317 From 50230713b63941f4b6b562eea0834f751aa0801e Mon Sep 17 00:00:00 2001 From: "Suthikulpanit, Suravee" Date: Wed, 28 Oct 2015 15:50:53 -0700 Subject: PCI: OF: Move of_pci_dma_configure() to pci_dma_configure() This patch move of_pci_dma_configure() to a more generic pci_dma_configure(), which can be extended by non-OF code (e.g. ACPI). This has no functional change. Signed-off-by: Suravee Suthikulpanit Acked-by: Rob Herring Acked-by: Bjorn Helgaas Reviewed-by: Hanjun Guo Signed-off-by: Rafael J. Wysocki --- drivers/of/of_pci.c | 19 ------------------- drivers/pci/probe.c | 22 +++++++++++++++++++++- include/linux/of_pci.h | 3 --- 3 files changed, 21 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c index a2f510cc683b..b66ee4ebf650 100644 --- a/drivers/of/of_pci.c +++ b/drivers/of/of_pci.c @@ -117,25 +117,6 @@ int of_get_pci_domain_nr(struct device_node *node) } EXPORT_SYMBOL_GPL(of_get_pci_domain_nr); -/** - * of_pci_dma_configure - Setup DMA configuration - * @dev: ptr to pci_dev struct of the PCI device - * - * Function to update PCI devices's DMA configuration using the same - * info from the OF node of host bridge's parent (if any). - */ -void of_pci_dma_configure(struct pci_dev *pci_dev) -{ - struct device *dev = &pci_dev->dev; - struct device *bridge = pci_get_host_bridge_device(pci_dev); - - if (bridge->parent) - of_dma_configure(dev, bridge->parent->of_node); - - pci_put_host_bridge_device(bridge); -} -EXPORT_SYMBOL_GPL(of_pci_dma_configure); - #if defined(CONFIG_OF_ADDRESS) /** * of_pci_get_host_bridge_resources - Parse PCI host bridge resources from DT diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 8361d27e5eca..d35f83d80b15 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include #include @@ -1633,6 +1634,25 @@ static void pci_set_msi_domain(struct pci_dev *dev) dev_get_msi_domain(&dev->bus->dev)); } +/** + * pci_dma_configure - Setup DMA configuration + * @dev: ptr to pci_dev struct of the PCI device + * + * Function to update PCI devices's DMA configuration using the same + * info from the OF node of host bridge's parent (if any). + */ +static void pci_dma_configure(struct pci_dev *dev) +{ + struct device *bridge = pci_get_host_bridge_device(dev); + + if (IS_ENABLED(CONFIG_OF) && dev->dev.of_node) { + if (bridge->parent) + of_dma_configure(&dev->dev, bridge->parent->of_node); + } + + pci_put_host_bridge_device(bridge); +} + void pci_device_add(struct pci_dev *dev, struct pci_bus *bus) { int ret; @@ -1646,7 +1666,7 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus) dev->dev.dma_mask = &dev->dma_mask; dev->dev.dma_parms = &dev->dma_parms; dev->dev.coherent_dma_mask = 0xffffffffull; - of_pci_dma_configure(dev); + pci_dma_configure(dev); pci_set_dma_max_seg_size(dev, 65536); pci_set_dma_seg_boundary(dev, 0xffffffff); diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h index 29fd3fe1c035..ce0e5abeb454 100644 --- a/include/linux/of_pci.h +++ b/include/linux/of_pci.h @@ -16,7 +16,6 @@ int of_pci_get_devfn(struct device_node *np); int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin); int of_pci_parse_bus_range(struct device_node *node, struct resource *res); int of_get_pci_domain_nr(struct device_node *node); -void of_pci_dma_configure(struct pci_dev *pci_dev); #else static inline int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq) { @@ -51,8 +50,6 @@ of_get_pci_domain_nr(struct device_node *node) { return -1; } - -static inline void of_pci_dma_configure(struct pci_dev *pci_dev) { } #endif #if defined(CONFIG_OF_ADDRESS) -- cgit v1.2.3-71-gd317 From 95ad1f4a9358dff1dcf84bf5c9cc84caa9215f7f Mon Sep 17 00:00:00 2001 From: Jozsef Kadlecsik Date: Sat, 7 Nov 2015 11:21:47 +0100 Subject: netfilter: ipset: Fix extension alignment The data extensions in ipset lacked the proper memory alignment and thus could lead to kernel crash on several architectures. Therefore the structures have been reorganized and alignment attributes added where needed. The patch was tested on armv7h by Gerhard Wiesinger and on x86_64, sparc64 by Jozsef Kadlecsik. Reported-by: Gerhard Wiesinger Tested-by: Gerhard Wiesinger Tested-by: Jozsef Kadlecsik Signed-off-by: Jozsef Kadlecsik --- include/linux/netfilter/ipset/ip_set.h | 2 +- net/netfilter/ipset/ip_set_bitmap_gen.h | 17 +++----- net/netfilter/ipset/ip_set_bitmap_ip.c | 14 ++----- net/netfilter/ipset/ip_set_bitmap_ipmac.c | 64 ++++++++++++++----------------- net/netfilter/ipset/ip_set_bitmap_port.c | 18 ++++----- net/netfilter/ipset/ip_set_core.c | 14 ++++--- net/netfilter/ipset/ip_set_hash_gen.h | 11 ++++-- net/netfilter/ipset/ip_set_list_set.c | 5 ++- 8 files changed, 65 insertions(+), 80 deletions(-) (limited to 'include') diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h index 48bb01edcf30..0e1f433cc4b7 100644 --- a/include/linux/netfilter/ipset/ip_set.h +++ b/include/linux/netfilter/ipset/ip_set.h @@ -421,7 +421,7 @@ extern void ip_set_free(void *members); extern int ip_set_get_ipaddr4(struct nlattr *nla, __be32 *ipaddr); extern int ip_set_get_ipaddr6(struct nlattr *nla, union nf_inet_addr *ipaddr); extern size_t ip_set_elem_len(struct ip_set *set, struct nlattr *tb[], - size_t len); + size_t len, size_t align); extern int ip_set_get_extensions(struct ip_set *set, struct nlattr *tb[], struct ip_set_ext *ext); diff --git a/net/netfilter/ipset/ip_set_bitmap_gen.h b/net/netfilter/ipset/ip_set_bitmap_gen.h index d05e759ed0fa..b0bc475f641e 100644 --- a/net/netfilter/ipset/ip_set_bitmap_gen.h +++ b/net/netfilter/ipset/ip_set_bitmap_gen.h @@ -33,7 +33,7 @@ #define mtype_gc IPSET_TOKEN(MTYPE, _gc) #define mtype MTYPE -#define get_ext(set, map, id) ((map)->extensions + (set)->dsize * (id)) +#define get_ext(set, map, id) ((map)->extensions + ((set)->dsize * (id))) static void mtype_gc_init(struct ip_set *set, void (*gc)(unsigned long ul_set)) @@ -67,12 +67,9 @@ mtype_destroy(struct ip_set *set) del_timer_sync(&map->gc); ip_set_free(map->members); - if (set->dsize) { - if (set->extensions & IPSET_EXT_DESTROY) - mtype_ext_cleanup(set); - ip_set_free(map->extensions); - } - kfree(map); + if (set->dsize && set->extensions & IPSET_EXT_DESTROY) + mtype_ext_cleanup(set); + ip_set_free(map); set->data = NULL; } @@ -92,16 +89,14 @@ mtype_head(struct ip_set *set, struct sk_buff *skb) { const struct mtype *map = set->data; struct nlattr *nested; + size_t memsize = sizeof(*map) + map->memsize; nested = ipset_nest_start(skb, IPSET_ATTR_DATA); if (!nested) goto nla_put_failure; if (mtype_do_head(skb, map) || nla_put_net32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1)) || - nla_put_net32(skb, IPSET_ATTR_MEMSIZE, - htonl(sizeof(*map) + - map->memsize + - set->dsize * map->elements))) + nla_put_net32(skb, IPSET_ATTR_MEMSIZE, htonl(memsize))) goto nla_put_failure; if (unlikely(ip_set_put_flags(skb, set))) goto nla_put_failure; diff --git a/net/netfilter/ipset/ip_set_bitmap_ip.c b/net/netfilter/ipset/ip_set_bitmap_ip.c index 64a564334418..4783efff0bde 100644 --- a/net/netfilter/ipset/ip_set_bitmap_ip.c +++ b/net/netfilter/ipset/ip_set_bitmap_ip.c @@ -41,7 +41,6 @@ MODULE_ALIAS("ip_set_bitmap:ip"); /* Type structure */ struct bitmap_ip { void *members; /* the set members */ - void *extensions; /* data extensions */ u32 first_ip; /* host byte order, included in range */ u32 last_ip; /* host byte order, included in range */ u32 elements; /* number of max elements in the set */ @@ -49,6 +48,8 @@ struct bitmap_ip { size_t memsize; /* members size */ u8 netmask; /* subnet netmask */ struct timer_list gc; /* garbage collection */ + unsigned char extensions[0] /* data extensions */ + __aligned(__alignof__(u64)); }; /* ADT structure for generic function args */ @@ -224,13 +225,6 @@ init_map_ip(struct ip_set *set, struct bitmap_ip *map, map->members = ip_set_alloc(map->memsize); if (!map->members) return false; - if (set->dsize) { - map->extensions = ip_set_alloc(set->dsize * elements); - if (!map->extensions) { - kfree(map->members); - return false; - } - } map->first_ip = first_ip; map->last_ip = last_ip; map->elements = elements; @@ -316,13 +310,13 @@ bitmap_ip_create(struct net *net, struct ip_set *set, struct nlattr *tb[], pr_debug("hosts %u, elements %llu\n", hosts, (unsigned long long)elements); - map = kzalloc(sizeof(*map), GFP_KERNEL); + set->dsize = ip_set_elem_len(set, tb, 0, 0); + map = ip_set_alloc(sizeof(*map) + elements * set->dsize); if (!map) return -ENOMEM; map->memsize = bitmap_bytes(0, elements - 1); set->variant = &bitmap_ip; - set->dsize = ip_set_elem_len(set, tb, 0); if (!init_map_ip(set, map, first_ip, last_ip, elements, hosts, netmask)) { kfree(map); diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c index 1430535118fb..29dde208381d 100644 --- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c +++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c @@ -47,24 +47,26 @@ enum { /* Type structure */ struct bitmap_ipmac { void *members; /* the set members */ - void *extensions; /* MAC + data extensions */ u32 first_ip; /* host byte order, included in range */ u32 last_ip; /* host byte order, included in range */ u32 elements; /* number of max elements in the set */ size_t memsize; /* members size */ struct timer_list gc; /* garbage collector */ + unsigned char extensions[0] /* MAC + data extensions */ + __aligned(__alignof__(u64)); }; /* ADT structure for generic function args */ struct bitmap_ipmac_adt_elem { + unsigned char ether[ETH_ALEN] __aligned(2); u16 id; - unsigned char *ether; + u16 add_mac; }; struct bitmap_ipmac_elem { unsigned char ether[ETH_ALEN]; unsigned char filled; -} __attribute__ ((aligned)); +} __aligned(__alignof__(u64)); static inline u32 ip_to_id(const struct bitmap_ipmac *m, u32 ip) @@ -72,11 +74,11 @@ ip_to_id(const struct bitmap_ipmac *m, u32 ip) return ip - m->first_ip; } -static inline struct bitmap_ipmac_elem * -get_elem(void *extensions, u16 id, size_t dsize) -{ - return (struct bitmap_ipmac_elem *)(extensions + id * dsize); -} +#define get_elem(extensions, id, dsize) \ + (struct bitmap_ipmac_elem *)(extensions + (id) * (dsize)) + +#define get_const_elem(extensions, id, dsize) \ + (const struct bitmap_ipmac_elem *)(extensions + (id) * (dsize)) /* Common functions */ @@ -88,10 +90,9 @@ bitmap_ipmac_do_test(const struct bitmap_ipmac_adt_elem *e, if (!test_bit(e->id, map->members)) return 0; - elem = get_elem(map->extensions, e->id, dsize); - if (elem->filled == MAC_FILLED) - return !e->ether || - ether_addr_equal(e->ether, elem->ether); + elem = get_const_elem(map->extensions, e->id, dsize); + if (e->add_mac && elem->filled == MAC_FILLED) + return ether_addr_equal(e->ether, elem->ether); /* Trigger kernel to fill out the ethernet address */ return -EAGAIN; } @@ -103,7 +104,7 @@ bitmap_ipmac_gc_test(u16 id, const struct bitmap_ipmac *map, size_t dsize) if (!test_bit(id, map->members)) return 0; - elem = get_elem(map->extensions, id, dsize); + elem = get_const_elem(map->extensions, id, dsize); /* Timer not started for the incomplete elements */ return elem->filled == MAC_FILLED; } @@ -133,7 +134,7 @@ bitmap_ipmac_add_timeout(unsigned long *timeout, * and we can reuse it later when MAC is filled out, * possibly by the kernel */ - if (e->ether) + if (e->add_mac) ip_set_timeout_set(timeout, t); else *timeout = t; @@ -150,7 +151,7 @@ bitmap_ipmac_do_add(const struct bitmap_ipmac_adt_elem *e, elem = get_elem(map->extensions, e->id, dsize); if (test_bit(e->id, map->members)) { if (elem->filled == MAC_FILLED) { - if (e->ether && + if (e->add_mac && (flags & IPSET_FLAG_EXIST) && !ether_addr_equal(e->ether, elem->ether)) { /* memcpy isn't atomic */ @@ -159,7 +160,7 @@ bitmap_ipmac_do_add(const struct bitmap_ipmac_adt_elem *e, ether_addr_copy(elem->ether, e->ether); } return IPSET_ADD_FAILED; - } else if (!e->ether) + } else if (!e->add_mac) /* Already added without ethernet address */ return IPSET_ADD_FAILED; /* Fill the MAC address and trigger the timer activation */ @@ -168,7 +169,7 @@ bitmap_ipmac_do_add(const struct bitmap_ipmac_adt_elem *e, ether_addr_copy(elem->ether, e->ether); elem->filled = MAC_FILLED; return IPSET_ADD_START_STORED_TIMEOUT; - } else if (e->ether) { + } else if (e->add_mac) { /* We can store MAC too */ ether_addr_copy(elem->ether, e->ether); elem->filled = MAC_FILLED; @@ -191,7 +192,7 @@ bitmap_ipmac_do_list(struct sk_buff *skb, const struct bitmap_ipmac *map, u32 id, size_t dsize) { const struct bitmap_ipmac_elem *elem = - get_elem(map->extensions, id, dsize); + get_const_elem(map->extensions, id, dsize); return nla_put_ipaddr4(skb, IPSET_ATTR_IP, htonl(map->first_ip + id)) || @@ -213,7 +214,7 @@ bitmap_ipmac_kadt(struct ip_set *set, const struct sk_buff *skb, { struct bitmap_ipmac *map = set->data; ipset_adtfn adtfn = set->variant->adt[adt]; - struct bitmap_ipmac_adt_elem e = { .id = 0 }; + struct bitmap_ipmac_adt_elem e = { .id = 0, .add_mac = 1 }; struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set); u32 ip; @@ -231,7 +232,7 @@ bitmap_ipmac_kadt(struct ip_set *set, const struct sk_buff *skb, return -EINVAL; e.id = ip_to_id(map, ip); - e.ether = eth_hdr(skb)->h_source; + memcpy(e.ether, eth_hdr(skb)->h_source, ETH_ALEN); return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags); } @@ -265,11 +266,10 @@ bitmap_ipmac_uadt(struct ip_set *set, struct nlattr *tb[], return -IPSET_ERR_BITMAP_RANGE; e.id = ip_to_id(map, ip); - if (tb[IPSET_ATTR_ETHER]) - e.ether = nla_data(tb[IPSET_ATTR_ETHER]); - else - e.ether = NULL; - + if (tb[IPSET_ATTR_ETHER]) { + memcpy(e.ether, nla_data(tb[IPSET_ATTR_ETHER]), ETH_ALEN); + e.add_mac = 1; + } ret = adtfn(set, &e, &ext, &ext, flags); return ip_set_eexist(ret, flags) ? 0 : ret; @@ -300,13 +300,6 @@ init_map_ipmac(struct ip_set *set, struct bitmap_ipmac *map, map->members = ip_set_alloc(map->memsize); if (!map->members) return false; - if (set->dsize) { - map->extensions = ip_set_alloc(set->dsize * elements); - if (!map->extensions) { - kfree(map->members); - return false; - } - } map->first_ip = first_ip; map->last_ip = last_ip; map->elements = elements; @@ -361,14 +354,15 @@ bitmap_ipmac_create(struct net *net, struct ip_set *set, struct nlattr *tb[], if (elements > IPSET_BITMAP_MAX_RANGE + 1) return -IPSET_ERR_BITMAP_RANGE_SIZE; - map = kzalloc(sizeof(*map), GFP_KERNEL); + set->dsize = ip_set_elem_len(set, tb, + sizeof(struct bitmap_ipmac_elem), + __alignof__(struct bitmap_ipmac_elem)); + map = ip_set_alloc(sizeof(*map) + elements * set->dsize); if (!map) return -ENOMEM; map->memsize = bitmap_bytes(0, elements - 1); set->variant = &bitmap_ipmac; - set->dsize = ip_set_elem_len(set, tb, - sizeof(struct bitmap_ipmac_elem)); if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) { kfree(map); return -ENOMEM; diff --git a/net/netfilter/ipset/ip_set_bitmap_port.c b/net/netfilter/ipset/ip_set_bitmap_port.c index 5338ccd5da46..7f0c733358a4 100644 --- a/net/netfilter/ipset/ip_set_bitmap_port.c +++ b/net/netfilter/ipset/ip_set_bitmap_port.c @@ -35,12 +35,13 @@ MODULE_ALIAS("ip_set_bitmap:port"); /* Type structure */ struct bitmap_port { void *members; /* the set members */ - void *extensions; /* data extensions */ u16 first_port; /* host byte order, included in range */ u16 last_port; /* host byte order, included in range */ u32 elements; /* number of max elements in the set */ size_t memsize; /* members size */ struct timer_list gc; /* garbage collection */ + unsigned char extensions[0] /* data extensions */ + __aligned(__alignof__(u64)); }; /* ADT structure for generic function args */ @@ -209,13 +210,6 @@ init_map_port(struct ip_set *set, struct bitmap_port *map, map->members = ip_set_alloc(map->memsize); if (!map->members) return false; - if (set->dsize) { - map->extensions = ip_set_alloc(set->dsize * map->elements); - if (!map->extensions) { - kfree(map->members); - return false; - } - } map->first_port = first_port; map->last_port = last_port; set->timeout = IPSET_NO_TIMEOUT; @@ -232,6 +226,7 @@ bitmap_port_create(struct net *net, struct ip_set *set, struct nlattr *tb[], { struct bitmap_port *map; u16 first_port, last_port; + u32 elements; if (unlikely(!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) || !ip_set_attr_netorder(tb, IPSET_ATTR_PORT_TO) || @@ -248,14 +243,15 @@ bitmap_port_create(struct net *net, struct ip_set *set, struct nlattr *tb[], last_port = tmp; } - map = kzalloc(sizeof(*map), GFP_KERNEL); + elements = last_port - first_port + 1; + set->dsize = ip_set_elem_len(set, tb, 0, 0); + map = ip_set_alloc(sizeof(*map) + elements * set->dsize); if (!map) return -ENOMEM; - map->elements = last_port - first_port + 1; + map->elements = elements; map->memsize = bitmap_bytes(0, map->elements); set->variant = &bitmap_port; - set->dsize = ip_set_elem_len(set, tb, 0); if (!init_map_port(set, map, first_port, last_port)) { kfree(map); return -ENOMEM; diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c index 69ab9c2634e1..54f3d7cb23e6 100644 --- a/net/netfilter/ipset/ip_set_core.c +++ b/net/netfilter/ipset/ip_set_core.c @@ -364,25 +364,27 @@ add_extension(enum ip_set_ext_id id, u32 flags, struct nlattr *tb[]) } size_t -ip_set_elem_len(struct ip_set *set, struct nlattr *tb[], size_t len) +ip_set_elem_len(struct ip_set *set, struct nlattr *tb[], size_t len, + size_t align) { enum ip_set_ext_id id; - size_t offset = len; u32 cadt_flags = 0; if (tb[IPSET_ATTR_CADT_FLAGS]) cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]); if (cadt_flags & IPSET_FLAG_WITH_FORCEADD) set->flags |= IPSET_CREATE_FLAG_FORCEADD; + if (!align) + align = 1; for (id = 0; id < IPSET_EXT_ID_MAX; id++) { if (!add_extension(id, cadt_flags, tb)) continue; - offset = ALIGN(offset, ip_set_extensions[id].align); - set->offset[id] = offset; + len = ALIGN(len, ip_set_extensions[id].align); + set->offset[id] = len; set->extensions |= ip_set_extensions[id].type; - offset += ip_set_extensions[id].len; + len += ip_set_extensions[id].len; } - return offset; + return ALIGN(len, align); } EXPORT_SYMBOL_GPL(ip_set_elem_len); diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h index 691b54fcaf2a..4ff22194ce55 100644 --- a/net/netfilter/ipset/ip_set_hash_gen.h +++ b/net/netfilter/ipset/ip_set_hash_gen.h @@ -72,8 +72,9 @@ struct hbucket { DECLARE_BITMAP(used, AHASH_MAX_TUNED); u8 size; /* size of the array */ u8 pos; /* position of the first free entry */ - unsigned char value[0]; /* the array of the values */ -} __attribute__ ((aligned)); + unsigned char value[0] /* the array of the values */ + __aligned(__alignof__(u64)); +}; /* The hash table: the table size stored here in order to make resizing easy */ struct htable { @@ -1323,12 +1324,14 @@ IPSET_TOKEN(HTYPE, _create)(struct net *net, struct ip_set *set, #endif set->variant = &IPSET_TOKEN(HTYPE, 4_variant); set->dsize = ip_set_elem_len(set, tb, - sizeof(struct IPSET_TOKEN(HTYPE, 4_elem))); + sizeof(struct IPSET_TOKEN(HTYPE, 4_elem)), + __alignof__(struct IPSET_TOKEN(HTYPE, 4_elem))); #ifndef IP_SET_PROTO_UNDEF } else { set->variant = &IPSET_TOKEN(HTYPE, 6_variant); set->dsize = ip_set_elem_len(set, tb, - sizeof(struct IPSET_TOKEN(HTYPE, 6_elem))); + sizeof(struct IPSET_TOKEN(HTYPE, 6_elem)), + __alignof__(struct IPSET_TOKEN(HTYPE, 6_elem))); } #endif if (tb[IPSET_ATTR_TIMEOUT]) { diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c index 5a30ce6e8c90..bbede95c9f68 100644 --- a/net/netfilter/ipset/ip_set_list_set.c +++ b/net/netfilter/ipset/ip_set_list_set.c @@ -31,7 +31,7 @@ struct set_elem { struct rcu_head rcu; struct list_head list; ip_set_id_t id; -}; +} __aligned(__alignof__(u64)); struct set_adt_elem { ip_set_id_t id; @@ -618,7 +618,8 @@ list_set_create(struct net *net, struct ip_set *set, struct nlattr *tb[], size = IP_SET_LIST_MIN_SIZE; set->variant = &set_variant; - set->dsize = ip_set_elem_len(set, tb, sizeof(struct set_elem)); + set->dsize = ip_set_elem_len(set, tb, sizeof(struct set_elem), + __alignof__(struct set_elem)); if (!init_list_set(net, set, size)) return -ENOMEM; if (tb[IPSET_ATTR_TIMEOUT]) { -- cgit v1.2.3-71-gd317 From a02613a4ba679eacec8251976d02809d533fa717 Mon Sep 17 00:00:00 2001 From: Yoshinori Sato Date: Thu, 16 Jul 2015 13:56:06 +0900 Subject: asm-generic: {get,put}_user ptr argument evaluate only 1 time Current implemantation ptr argument evaluate 2 times. It'll be an unexpected result. Changes v5: Remove unnecessary const. Changes v4: Temporary pointer type change to const void* Changes v3: Some build error fix. Changes v2: Argument x protect. Signed-off-by: Yoshinori Sato --- include/asm-generic/uaccess.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h index 72d8803832ff..1bfa602958f2 100644 --- a/include/asm-generic/uaccess.h +++ b/include/asm-generic/uaccess.h @@ -163,9 +163,10 @@ static inline __must_check long __copy_to_user(void __user *to, #define put_user(x, ptr) \ ({ \ + void *__p = (ptr); \ might_fault(); \ - access_ok(VERIFY_WRITE, ptr, sizeof(*ptr)) ? \ - __put_user(x, ptr) : \ + access_ok(VERIFY_WRITE, __p, sizeof(*ptr)) ? \ + __put_user((x), ((__typeof__(*(ptr)) *)__p)) : \ -EFAULT; \ }) @@ -225,9 +226,10 @@ extern int __put_user_bad(void) __attribute__((noreturn)); #define get_user(x, ptr) \ ({ \ + const void *__p = (ptr); \ might_fault(); \ - access_ok(VERIFY_READ, ptr, sizeof(*ptr)) ? \ - __get_user(x, ptr) : \ + access_ok(VERIFY_READ, __p, sizeof(*ptr)) ? \ + __get_user((x), (__typeof__(*(ptr)) *)__p) : \ -EFAULT; \ }) -- cgit v1.2.3-71-gd317 From 64d513ac31bd02a3c9b69ef04444f36c196f9a9d Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 8 Oct 2015 09:28:04 +0100 Subject: scsi: use host wide tags by default This patch changes the !blk-mq path to the same defaults as the blk-mq I/O path by always enabling block tagging, and always using host wide tags. We've had blk-mq available for a few releases so bugs with this mode should have been ironed out, and this ensures we get better coverage of over tagging setup over different configs. Signed-off-by: Christoph Hellwig Acked-by: Jens Axboe Reviewed-by: Hannes Reinecke Signed-off-by: James Bottomley --- drivers/ata/libata-scsi.c | 3 - drivers/infiniband/ulp/srp/ib_srp.c | 5 -- drivers/message/fusion/mptsas.c | 1 - drivers/scsi/53c700.c | 11 ++-- drivers/scsi/advansys.c | 6 -- drivers/scsi/aic7xxx/aic79xx_osm.c | 1 - drivers/scsi/aic7xxx/aic7xxx_osm.c | 1 - drivers/scsi/aic94xx/aic94xx_init.c | 1 - drivers/scsi/bfa/bfad_im.c | 2 - drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 1 - drivers/scsi/csiostor/csio_scsi.c | 2 - drivers/scsi/esas2r/esas2r_main.c | 1 - drivers/scsi/esp_scsi.c | 1 - drivers/scsi/fcoe/fcoe.c | 1 - drivers/scsi/fnic/fnic_main.c | 8 --- drivers/scsi/hosts.c | 7 +++ drivers/scsi/hpsa.c | 10 +--- drivers/scsi/ibmvscsi/ibmvfc.c | 1 - drivers/scsi/ipr.c | 1 - drivers/scsi/isci/init.c | 1 - drivers/scsi/lpfc/lpfc_scsi.c | 3 - drivers/scsi/megaraid/megaraid_sas_base.c | 8 --- drivers/scsi/mvsas/mv_init.c | 1 - drivers/scsi/pm8001/pm8001_init.c | 1 - drivers/scsi/pmcraid.c | 1 - drivers/scsi/qla2xxx/qla_os.c | 1 - drivers/scsi/qla4xxx/ql4_os.c | 8 --- drivers/scsi/scsi.c | 27 +-------- drivers/scsi/scsi_scan.c | 3 +- drivers/scsi/snic/snic_main.c | 10 ---- drivers/scsi/stex.c | 8 --- drivers/scsi/ufs/ufshcd.c | 8 --- drivers/target/loopback/tcm_loop.c | 1 - drivers/usb/storage/uas.c | 5 -- include/scsi/scsi_host.h | 5 -- include/scsi/scsi_tcq.h | 95 +++++++------------------------ 36 files changed, 39 insertions(+), 211 deletions(-) (limited to 'include') diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 0d7f0da3a269..ade388648fe7 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3689,9 +3689,6 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht) */ shost->max_host_blocked = 1; - if (scsi_init_shared_tag_map(shost, host->n_tags)) - goto err_add; - rc = scsi_add_host_with_dma(ap->scsi_host, &ap->tdev, ap->host->dev); if (rc) diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index b481490ad257..96014dc4b6dd 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -2750,7 +2750,6 @@ static struct scsi_host_template srp_template = { .cmd_per_lun = SRP_DEFAULT_CMD_SQ_SIZE, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = srp_host_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -3181,10 +3180,6 @@ static ssize_t srp_create_target(struct device *dev, if (ret) goto out; - ret = scsi_init_shared_tag_map(target_host, target_host->can_queue); - if (ret) - goto out; - target->req_ring_size = target->queue_size - SRP_TSK_MGMT_SQ_SIZE; if (!srp_conn_unique(target->srp_host, target)) { diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c index 005a88b9f440..7ebccfa8072a 100644 --- a/drivers/message/fusion/mptsas.c +++ b/drivers/message/fusion/mptsas.c @@ -1994,7 +1994,6 @@ static struct scsi_host_template mptsas_driver_template = { .cmd_per_lun = 7, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = mptscsih_host_attrs, - .use_blk_tags = 1, }; static int mptsas_get_linkerrors(struct sas_phy *phy) diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c index a209c3418898..d4c285688ce9 100644 --- a/drivers/scsi/53c700.c +++ b/drivers/scsi/53c700.c @@ -325,7 +325,6 @@ NCR_700_detect(struct scsi_host_template *tpnt, tpnt->slave_destroy = NCR_700_slave_destroy; tpnt->slave_alloc = NCR_700_slave_alloc; tpnt->change_queue_depth = NCR_700_change_queue_depth; - tpnt->use_blk_tags = 1; if(tpnt->name == NULL) tpnt->name = "53c700"; @@ -1107,7 +1106,9 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp, BUG(); } if(hostdata->msgin[1] == A_SIMPLE_TAG_MSG) { - struct scsi_cmnd *SCp = scsi_find_tag(SDp, hostdata->msgin[2]); + struct scsi_cmnd *SCp; + + SCp = scsi_host_find_tag(SDp->host, hostdata->msgin[2]); if(unlikely(SCp == NULL)) { printk(KERN_ERR "scsi%d: (%d:%d) no saved request for tag %d\n", host->host_no, reselection_id, lun, hostdata->msgin[2]); @@ -1119,7 +1120,9 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp, "reselection is tag %d, slot %p(%d)\n", hostdata->msgin[2], slot, slot->tag); } else { - struct scsi_cmnd *SCp = scsi_find_tag(SDp, SCSI_NO_TAG); + struct scsi_cmnd *SCp; + + SCp = scsi_host_find_tag(SDp->host, SCSI_NO_TAG); if(unlikely(SCp == NULL)) { sdev_printk(KERN_ERR, SDp, "no saved request for untagged cmd\n"); @@ -1823,7 +1826,7 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *) slot->tag, slot); } else { slot->tag = SCSI_NO_TAG; - /* must populate current_cmnd for scsi_find_tag to work */ + /* must populate current_cmnd for scsi_host_find_tag to work */ SCp->device->current_cmnd = SCp; } /* sanity check: some of the commands generated by the mid-layer diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c index 4305178e4e01..519f9a4b3dad 100644 --- a/drivers/scsi/advansys.c +++ b/drivers/scsi/advansys.c @@ -10819,7 +10819,6 @@ static struct scsi_host_template advansys_template = { * by enabling clustering, I/O throughput increases as well. */ .use_clustering = ENABLE_CLUSTERING, - .use_blk_tags = 1, }; static int advansys_wide_init_chip(struct Scsi_Host *shost) @@ -11211,11 +11210,6 @@ static int advansys_board_found(struct Scsi_Host *shost, unsigned int iop, /* Set maximum number of queues the adapter can handle. */ shost->can_queue = adv_dvc_varp->max_host_qng; } - ret = scsi_init_shared_tag_map(shost, shost->can_queue); - if (ret) { - shost_printk(KERN_ERR, shost, "init tag map failed\n"); - goto err_free_dma; - } /* * Set the maximum number of scatter-gather elements the diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index ce96a0be3282..2588b8f84ba0 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -925,7 +925,6 @@ struct scsi_host_template aic79xx_driver_template = { .slave_configure = ahd_linux_slave_configure, .target_alloc = ahd_linux_target_alloc, .target_destroy = ahd_linux_target_destroy, - .use_blk_tags = 1, }; /******************************** Bus DMA *************************************/ diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index a2f2c774cd6b..b846a4683562 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -812,7 +812,6 @@ struct scsi_host_template aic7xxx_driver_template = { .slave_configure = ahc_linux_slave_configure, .target_alloc = ahc_linux_target_alloc, .target_destroy = ahc_linux_target_destroy, - .use_blk_tags = 1, }; /**************************** Tasklet Handler *********************************/ diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index f6c336b05d5b..cd094bf82a77 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -73,7 +73,6 @@ static struct scsi_host_template aic94xx_sht = { .eh_bus_reset_handler = sas_eh_bus_reset_handler, .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 8367c11d554b..299c6f80d460 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -800,7 +800,6 @@ struct scsi_host_template bfad_im_scsi_host_template = { .shost_attrs = bfad_im_host_attrs, .max_sectors = BFAD_MAX_SECTORS, .vendor_id = BFA_PCI_VENDOR_ID_BROCADE, - .use_blk_tags = 1, }; struct scsi_host_template bfad_im_vport_template = { @@ -822,7 +821,6 @@ struct scsi_host_template bfad_im_vport_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = bfad_im_vport_attrs, .max_sectors = BFAD_MAX_SECTORS, - .use_blk_tags = 1, }; bfa_status_t diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 29a1c03b558e..0857d80f2999 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -2867,7 +2867,6 @@ static struct scsi_host_template bnx2fc_shost_template = { .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD, .max_sectors = 1024, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 2c4562d82dc0..c2a6f9f29427 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2283,7 +2283,6 @@ struct scsi_host_template csio_fcoe_shost_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = csio_fcoe_lport_attrs, .max_sectors = CSIO_MAX_SECTOR_SIZE, - .use_blk_tags = 1, }; struct scsi_host_template csio_fcoe_shost_vport_template = { @@ -2303,7 +2302,6 @@ struct scsi_host_template csio_fcoe_shost_vport_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = csio_fcoe_vport_attrs, .max_sectors = CSIO_MAX_SECTOR_SIZE, - .use_blk_tags = 1, }; /* diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c index 31f8966b2e03..33581ba4386e 100644 --- a/drivers/scsi/esas2r/esas2r_main.c +++ b/drivers/scsi/esas2r/esas2r_main.c @@ -256,7 +256,6 @@ static struct scsi_host_template driver_template = { .proc_name = ESAS2R_DRVR_NAME, .change_queue_depth = scsi_change_queue_depth, .max_sectors = 0xFFFF, - .use_blk_tags = 1, }; int sgl_page_size = 512; diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c index 065b25df741b..71cb05b1c3eb 100644 --- a/drivers/scsi/esp_scsi.c +++ b/drivers/scsi/esp_scsi.c @@ -2694,7 +2694,6 @@ struct scsi_host_template scsi_esp_template = { .use_clustering = ENABLE_CLUSTERING, .max_sectors = 0xffff, .skip_settle_delay = 1, - .use_blk_tags = 1, }; EXPORT_SYMBOL(scsi_esp_template); diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index d187ba9b361d..f4424063b860 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -287,7 +287,6 @@ static struct scsi_host_template fcoe_shost_template = { .use_clustering = ENABLE_CLUSTERING, .sg_tablesize = SG_ALL, .max_sectors = 0xffff, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 8a0d4d7b3254..58ce9020d69c 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -118,7 +118,6 @@ static struct scsi_host_template fnic_host_template = { .sg_tablesize = FNIC_MAX_SG_DESC_CNT, .max_sectors = 0xffff, .shost_attrs = fnic_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -697,13 +696,6 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } fnic->fnic_max_tag_id = host->can_queue; - err = scsi_init_shared_tag_map(host, fnic->fnic_max_tag_id); - if (err) { - shost_printk(KERN_ERR, fnic->lport->host, - "Unable to alloc shared tag map\n"); - goto err_out_dev_close; - } - host->max_lun = fnic->config.luns_per_tgt; host->max_id = FNIC_MAX_FCP_TARGET; host->max_cmd_len = FCOE_MAX_CMD_LEN; diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 8bb173e01084..323982fd00c3 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -217,6 +217,13 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev, error = scsi_mq_setup_tags(shost); if (error) goto fail; + } else { + shost->bqt = blk_init_tags(shost->can_queue, + shost->hostt->tag_alloc_policy); + if (!shost->bqt) { + error = -ENOMEM; + goto fail; + } } /* diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 40669f8dd0df..7506b65d8e6c 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4983,7 +4983,6 @@ static int hpsa_scan_finished(struct Scsi_Host *sh, static int hpsa_scsi_host_alloc(struct ctlr_info *h) { struct Scsi_Host *sh; - int error; sh = scsi_host_alloc(&hpsa_driver_template, sizeof(h)); if (sh == NULL) { @@ -5004,14 +5003,7 @@ static int hpsa_scsi_host_alloc(struct ctlr_info *h) sh->hostdata[0] = (unsigned long) h; sh->irq = h->intr[h->intr_mode]; sh->unique_id = sh->irq; - error = scsi_init_shared_tag_map(sh, sh->can_queue); - if (error) { - dev_err(&h->pdev->dev, - "%s: scsi_init_shared_tag_map failed for controller %d\n", - __func__, h->ctlr); - scsi_host_put(sh); - return error; - } + h->scsi_host = sh; return 0; } diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 057d27721d5b..6aa317c303e2 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -3095,7 +3095,6 @@ static struct scsi_host_template driver_template = { .max_sectors = IBMVFC_MAX_SECTORS, .use_clustering = ENABLE_CLUSTERING, .shost_attrs = ibmvfc_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index b62836ddbbee..4f2c16778efa 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -6502,7 +6502,6 @@ static struct scsi_host_template driver_template = { .shost_attrs = ipr_ioa_attrs, .sdev_attrs = ipr_dev_attrs, .proc_name = IPR_NAME, - .use_blk_tags = 1, }; /** diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 0dfcabe3ca7c..2f973df72d9b 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -170,7 +170,6 @@ static struct scsi_host_template isci_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = isci_host_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 051b3b3bd625..4679ed4444a7 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -5914,7 +5914,6 @@ struct scsi_host_template lpfc_template_s3 = { .max_sectors = 0xFFFF, .vendor_id = LPFC_NL_VENDOR_ID, .change_queue_depth = scsi_change_queue_depth, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -5940,7 +5939,6 @@ struct scsi_host_template lpfc_template = { .max_sectors = 0xFFFF, .vendor_id = LPFC_NL_VENDOR_ID, .change_queue_depth = scsi_change_queue_depth, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -5964,6 +5962,5 @@ struct scsi_host_template lpfc_vport_template = { .shost_attrs = lpfc_vport_attrs, .max_sectors = 0xFFFF, .change_queue_depth = scsi_change_queue_depth, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index eaa81e552fd2..3b3f4809331b 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -5049,7 +5049,6 @@ static int megasas_start_aen(struct megasas_instance *instance) static int megasas_io_attach(struct megasas_instance *instance) { struct Scsi_Host *host = instance->host; - u32 error; /* * Export parameters required by SCSI mid-layer @@ -5099,13 +5098,6 @@ static int megasas_io_attach(struct megasas_instance *instance) host->hostt->eh_device_reset_handler = NULL; host->hostt->eh_bus_reset_handler = NULL; } - error = scsi_init_shared_tag_map(host, host->can_queue); - if (error) { - dev_err(&instance->pdev->dev, - "Failed to shared tag from %s %d\n", - __func__, __LINE__); - return -ENODEV; - } /* * Notify the mid-layer about the new controller diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index e2d555c1bffc..221d25e9dc5f 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -65,7 +65,6 @@ static struct scsi_host_template mvs_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = mvst_host_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c index 5c0356fb6310..e64b8bfafd80 100644 --- a/drivers/scsi/pm8001/pm8001_init.c +++ b/drivers/scsi/pm8001/pm8001_init.c @@ -88,7 +88,6 @@ static struct scsi_host_template pm8001_sht = { .target_destroy = sas_target_destroy, .ioctl = sas_ioctl, .shost_attrs = pm8001_host_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index ed31d8cc6266..48d62249c226 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -4254,7 +4254,6 @@ static struct scsi_host_template pmcraid_host_template = { .use_clustering = ENABLE_CLUSTERING, .shost_attrs = pmcraid_host_attrs, .proc_name = PMCRAID_DRIVER_NAME, - .use_blk_tags = 1, }; /* diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index c2dd17b1d26f..bfa9a64c316b 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -267,7 +267,6 @@ struct scsi_host_template qla2xxx_driver_template = { .shost_attrs = qla2x00_host_attrs, .supported_mode = MODE_INITIATOR, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 6d25879d87c8..01c3610a60cf 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -212,7 +212,6 @@ static struct scsi_host_template qla4xxx_driver_template = { .shost_attrs = qla4xxx_host_attrs, .host_reset = qla4xxx_host_reset, .vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC, - .use_blk_tags = 1, }; static struct iscsi_transport qla4xxx_iscsi_transport = { @@ -8697,13 +8696,6 @@ static int qla4xxx_probe_adapter(struct pci_dev *pdev, host->can_queue = MAX_SRBS ; host->transportt = qla4xxx_scsi_transport; - ret = scsi_init_shared_tag_map(host, MAX_SRBS); - if (ret) { - ql4_printk(KERN_WARNING, ha, - "%s: scsi_init_shared_tag_map failed\n", __func__); - goto probe_failed; - } - pci_set_drvdata(pdev, ha); ret = scsi_add_host(host, &pdev->dev); diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 207d6a7a1bd0..d07fb653f5dc 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -616,32 +616,11 @@ void scsi_finish_command(struct scsi_cmnd *cmd) */ int scsi_change_queue_depth(struct scsi_device *sdev, int depth) { - unsigned long flags; - - if (depth <= 0) - goto out; - - spin_lock_irqsave(sdev->request_queue->queue_lock, flags); - - /* - * Check to see if the queue is managed by the block layer. - * If it is, and we fail to adjust the depth, exit. - * - * Do not resize the tag map if it is a host wide share bqt, - * because the size should be the hosts's can_queue. If there - * is more IO than the LLD's can_queue (so there are not enuogh - * tags) request_fn's host queue ready check will handle it. - */ - if (!shost_use_blk_mq(sdev->host) && !sdev->host->bqt) { - if (blk_queue_tagged(sdev->request_queue) && - blk_queue_resize_tags(sdev->request_queue, depth) != 0) - goto out_unlock; + if (depth > 0) { + sdev->queue_depth = depth; + wmb(); } - sdev->queue_depth = depth; -out_unlock: - spin_unlock_irqrestore(sdev->request_queue->queue_lock, flags); -out: return sdev->queue_depth; } EXPORT_SYMBOL(scsi_change_queue_depth); diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index f9f3f8203d42..998f3788d8e9 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -274,8 +274,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, WARN_ON_ONCE(!blk_get_queue(sdev->request_queue)); sdev->request_queue->queuedata = sdev; - if (!shost_use_blk_mq(sdev->host) && - (shost->bqt || shost->hostt->use_blk_tags)) { + if (!shost_use_blk_mq(sdev->host)) { blk_queue_init_tags(sdev->request_queue, sdev->host->cmd_per_lun, shost->bqt, shost->hostt->tag_alloc_policy); diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c index b2b87cef00fc..2b3c25371d76 100644 --- a/drivers/scsi/snic/snic_main.c +++ b/drivers/scsi/snic/snic_main.c @@ -124,7 +124,6 @@ static struct scsi_host_template snic_host_template = { .sg_tablesize = SNIC_MAX_SG_DESC_CNT, .max_sectors = 0x800, .shost_attrs = snic_attrs, - .use_blk_tags = 1, .track_queue_depth = 1, .cmd_size = sizeof(struct snic_internal_io_state), .proc_name = "snic_scsi", @@ -533,15 +532,6 @@ snic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) snic->max_tag_id = shost->can_queue; - ret = scsi_init_shared_tag_map(shost, snic->max_tag_id); - if (ret) { - SNIC_HOST_ERR(shost, - "Unable to alloc shared tag map. %d\n", - ret); - - goto err_dev_close; - } - shost->max_lun = snic->config.luns_per_tgt; shost->max_id = SNIC_MAX_TARGET; diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c index 98a62bc15069..56353cd9abd3 100644 --- a/drivers/scsi/stex.c +++ b/drivers/scsi/stex.c @@ -1374,7 +1374,6 @@ static struct scsi_host_template driver_template = { .eh_abort_handler = stex_abort, .eh_host_reset_handler = stex_reset, .this_id = -1, - .use_blk_tags = 1, }; static struct pci_device_id stex_pci_tbl[] = { @@ -1659,13 +1658,6 @@ static int stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (err) goto out_free_irq; - err = scsi_init_shared_tag_map(host, host->can_queue); - if (err) { - printk(KERN_ERR DRV_NAME "(%s): init shared queue failed\n", - pci_name(pdev)); - goto out_free_irq; - } - pci_set_drvdata(pdev, hba); err = scsi_add_host(host, &pdev->dev); diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index b0ade73f8c6a..9065eb451677 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4355,7 +4355,6 @@ static struct scsi_host_template ufshcd_driver_template = { .cmd_per_lun = UFSHCD_CMD_PER_LUN, .can_queue = UFSHCD_CAN_QUEUE, .max_host_blocked = 1, - .use_blk_tags = 1, .track_queue_depth = 1, }; @@ -5619,13 +5618,6 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) hba->is_irq_enabled = true; } - /* Enable SCSI tag mapping */ - err = scsi_init_shared_tag_map(host, host->can_queue); - if (err) { - dev_err(hba->dev, "init shared queue failed\n"); - goto exit_gating; - } - err = scsi_add_host(host, hba->dev); if (err) { dev_err(hba->dev, "scsi_add_host failed\n"); diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 5bc85ffed720..081f1cfefeb3 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -377,7 +377,6 @@ static struct scsi_host_template tcm_loop_driver_template = { .use_clustering = DISABLE_CLUSTERING, .slave_alloc = tcm_loop_slave_alloc, .module = THIS_MODULE, - .use_blk_tags = 1, .track_queue_depth = 1, }; diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index f68921909552..2850663f5126 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -812,7 +812,6 @@ static struct scsi_host_template uas_host_template = { .this_id = -1, .sg_tablesize = SG_NONE, .skip_settle_delay = 1, - .use_blk_tags = 1, }; #define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \ @@ -929,10 +928,6 @@ static int uas_probe(struct usb_interface *intf, const struct usb_device_id *id) if (result) goto set_alt0; - result = scsi_init_shared_tag_map(shost, devinfo->qdepth - 2); - if (result) - goto free_streams; - usb_set_intfdata(intf, shost); result = scsi_add_host(shost, &intf->dev); if (result) diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index e113c757d555..ed527121031d 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -405,11 +405,6 @@ struct scsi_host_template { /* If use block layer to manage tags, this is tag allocation policy */ int tag_alloc_policy; - /* - * Let the block layer assigns tags to all commands. - */ - unsigned use_blk_tags:1; - /* * Track QUEUE_FULL events and reduce queue depth on demand. */ diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h index b27977e8aaed..4416b1026189 100644 --- a/include/scsi/scsi_tcq.h +++ b/include/scsi/scsi_tcq.h @@ -10,91 +10,36 @@ #ifdef CONFIG_BLOCK -static inline struct scsi_cmnd *scsi_mq_find_tag(struct Scsi_Host *shost, - int unique_tag) -{ - u16 hwq = blk_mq_unique_tag_to_hwq(unique_tag); - struct request *req = NULL; - - if (hwq < shost->tag_set.nr_hw_queues) - req = blk_mq_tag_to_rq(shost->tag_set.tags[hwq], - blk_mq_unique_tag_to_tag(unique_tag)); - return req ? (struct scsi_cmnd *)req->special : NULL; -} - -/** - * scsi_find_tag - find a tagged command by device - * @SDpnt: pointer to the ScSI device - * @tag: tag generated by blk_mq_unique_tag() - * - * Notes: - * Only works with tags allocated by the generic blk layer. - **/ -static inline struct scsi_cmnd *scsi_find_tag(struct scsi_device *sdev, int tag) -{ - struct request *req; - - if (tag != SCSI_NO_TAG) { - if (shost_use_blk_mq(sdev->host)) - return scsi_mq_find_tag(sdev->host, tag); - - req = blk_queue_find_tag(sdev->request_queue, tag); - return req ? (struct scsi_cmnd *)req->special : NULL; - } - - /* single command, look in space */ - return sdev->current_cmnd; -} - - -/** - * scsi_init_shared_tag_map - create a shared tag map - * @shost: the host to share the tag map among all devices - * @depth: the total depth of the map - */ -static inline int scsi_init_shared_tag_map(struct Scsi_Host *shost, int depth) -{ - /* - * We always have a shared tag map around when using blk-mq. - */ - if (shost_use_blk_mq(shost)) - return 0; - - /* - * If the shared tag map isn't already initialized, do it now. - * This saves callers from having to check ->bqt when setting up - * devices on the shared host (for libata) - */ - if (!shost->bqt) { - shost->bqt = blk_init_tags(depth, - shost->hostt->tag_alloc_policy); - if (!shost->bqt) - return -ENOMEM; - } - - return 0; -} - /** * scsi_host_find_tag - find the tagged command by host * @shost: pointer to scsi_host - * @tag: tag generated by blk_mq_unique_tag() + * @tag: tag * - * Notes: - * Only works with tags allocated by the generic blk layer. + * Note: for devices using multiple hardware queues tag must have been + * generated by blk_mq_unique_tag(). **/ static inline struct scsi_cmnd *scsi_host_find_tag(struct Scsi_Host *shost, - int tag) + int tag) { - struct request *req; + struct request *req = NULL; - if (tag != SCSI_NO_TAG) { - if (shost_use_blk_mq(shost)) - return scsi_mq_find_tag(shost, tag); + if (tag == SCSI_NO_TAG) + return NULL; + + if (shost_use_blk_mq(shost)) { + u16 hwq = blk_mq_unique_tag_to_hwq(tag); + + if (hwq < shost->tag_set.nr_hw_queues) { + req = blk_mq_tag_to_rq(shost->tag_set.tags[hwq], + blk_mq_unique_tag_to_tag(tag)); + } + } else { req = blk_map_queue_find_tag(shost->bqt, tag); - return req ? (struct scsi_cmnd *)req->special : NULL; } - return NULL; + + if (!req) + return NULL; + return req->special; } #endif /* CONFIG_BLOCK */ -- cgit v1.2.3-71-gd317 From 35181e86df97e4223f4a28fb33e2bcf3b73de141 Mon Sep 17 00:00:00 2001 From: Haozhong Zhang Date: Tue, 20 Oct 2015 15:39:03 +0800 Subject: KVM: x86: Add a common TSC scaling function VMX and SVM calculate the TSC scaling ratio in a similar logic, so this patch generalizes it to a common TSC scaling function. Signed-off-by: Haozhong Zhang [Inline the multiplication and shift steps into mul_u64_u64_shr. Remove BUG_ON. - Paolo] Signed-off-by: Paolo Bonzini --- arch/x86/include/asm/kvm_host.h | 2 ++ arch/x86/kvm/svm.c | 48 ++++---------------------------------- arch/x86/kvm/x86.c | 40 +++++++++++++++++++++++++++++++- include/linux/kvm_host.h | 1 + include/linux/math64.h | 51 +++++++++++++++++++++++++++++++++++++++++ 5 files changed, 97 insertions(+), 45 deletions(-) (limited to 'include') diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index f3354bd92364..52d1419968eb 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1238,6 +1238,8 @@ void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm, void kvm_define_shared_msr(unsigned index, u32 msr); int kvm_set_shared_msr(unsigned index, u64 val, u64 mask); +u64 kvm_scale_tsc(struct kvm_vcpu *vcpu, u64 tsc); + unsigned long kvm_get_linear_rip(struct kvm_vcpu *vcpu); bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 9c92e6f429d0..65f4f1947a62 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -212,7 +212,6 @@ static int nested_svm_intercept(struct vcpu_svm *svm); static int nested_svm_vmexit(struct vcpu_svm *svm); static int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr, bool has_error_code, u32 error_code); -static u64 __scale_tsc(u64 ratio, u64 tsc); enum { VMCB_INTERCEPTS, /* Intercept vectors, TSC offset, @@ -892,21 +891,7 @@ static __init int svm_hardware_setup(void) kvm_enable_efer_bits(EFER_FFXSR); if (boot_cpu_has(X86_FEATURE_TSCRATEMSR)) { - u64 max; - kvm_has_tsc_control = true; - - /* - * Make sure the user can only configure tsc_khz values that - * fit into a signed integer. - * A min value is not calculated needed because it will always - * be 1 on all machines and a value of 0 is used to disable - * tsc-scaling for the vcpu. - */ - max = min(0x7fffffffULL, __scale_tsc(tsc_khz, TSC_RATIO_MAX)); - - kvm_max_guest_tsc_khz = max; - kvm_max_tsc_scaling_ratio = TSC_RATIO_MAX; kvm_tsc_scaling_ratio_frac_bits = 32; } @@ -972,31 +957,6 @@ static void init_sys_seg(struct vmcb_seg *seg, uint32_t type) seg->base = 0; } -static u64 __scale_tsc(u64 ratio, u64 tsc) -{ - u64 mult, frac, _tsc; - - mult = ratio >> 32; - frac = ratio & ((1ULL << 32) - 1); - - _tsc = tsc; - _tsc *= mult; - _tsc += (tsc >> 32) * frac; - _tsc += ((tsc & ((1ULL << 32) - 1)) * frac) >> 32; - - return _tsc; -} - -static u64 svm_scale_tsc(struct kvm_vcpu *vcpu, u64 tsc) -{ - u64 _tsc = tsc; - - if (vcpu->arch.tsc_scaling_ratio != TSC_RATIO_DEFAULT) - _tsc = __scale_tsc(vcpu->arch.tsc_scaling_ratio, tsc); - - return _tsc; -} - static void svm_set_tsc_khz(struct kvm_vcpu *vcpu, u32 user_tsc_khz, bool scale) { u64 ratio; @@ -1065,7 +1025,7 @@ static void svm_adjust_tsc_offset(struct kvm_vcpu *vcpu, s64 adjustment, bool ho if (host) { if (vcpu->arch.tsc_scaling_ratio != TSC_RATIO_DEFAULT) WARN_ON(adjustment < 0); - adjustment = svm_scale_tsc(vcpu, (u64)adjustment); + adjustment = kvm_scale_tsc(vcpu, (u64)adjustment); } svm->vmcb->control.tsc_offset += adjustment; @@ -1083,7 +1043,7 @@ static u64 svm_compute_tsc_offset(struct kvm_vcpu *vcpu, u64 target_tsc) { u64 tsc; - tsc = svm_scale_tsc(vcpu, rdtsc()); + tsc = kvm_scale_tsc(vcpu, rdtsc()); return target_tsc - tsc; } @@ -3075,7 +3035,7 @@ static u64 svm_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc) { struct vmcb *vmcb = get_host_vmcb(to_svm(vcpu)); return vmcb->control.tsc_offset + - svm_scale_tsc(vcpu, host_tsc); + kvm_scale_tsc(vcpu, host_tsc); } static int svm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) @@ -3085,7 +3045,7 @@ static int svm_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info) switch (msr_info->index) { case MSR_IA32_TSC: { msr_info->data = svm->vmcb->control.tsc_offset + - svm_scale_tsc(vcpu, rdtsc()); + kvm_scale_tsc(vcpu, rdtsc()); break; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index ef5b9d66cd71..1473e64cb744 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1329,6 +1329,33 @@ static void update_ia32_tsc_adjust_msr(struct kvm_vcpu *vcpu, s64 offset) vcpu->arch.ia32_tsc_adjust_msr += offset - curr_offset; } +/* + * Multiply tsc by a fixed point number represented by ratio. + * + * The most significant 64-N bits (mult) of ratio represent the + * integral part of the fixed point number; the remaining N bits + * (frac) represent the fractional part, ie. ratio represents a fixed + * point number (mult + frac * 2^(-N)). + * + * N equals to kvm_tsc_scaling_ratio_frac_bits. + */ +static inline u64 __scale_tsc(u64 ratio, u64 tsc) +{ + return mul_u64_u64_shr(tsc, ratio, kvm_tsc_scaling_ratio_frac_bits); +} + +u64 kvm_scale_tsc(struct kvm_vcpu *vcpu, u64 tsc) +{ + u64 _tsc = tsc; + u64 ratio = vcpu->arch.tsc_scaling_ratio; + + if (ratio != kvm_default_tsc_scaling_ratio) + _tsc = __scale_tsc(ratio, tsc); + + return _tsc; +} +EXPORT_SYMBOL_GPL(kvm_scale_tsc); + void kvm_write_tsc(struct kvm_vcpu *vcpu, struct msr_data *msr) { struct kvm *kvm = vcpu->kvm; @@ -7371,8 +7398,19 @@ int kvm_arch_hardware_setup(void) if (r != 0) return r; - if (kvm_has_tsc_control) + if (kvm_has_tsc_control) { + /* + * Make sure the user can only configure tsc_khz values that + * fit into a signed integer. + * A min value is not calculated needed because it will always + * be 1 on all machines. + */ + u64 max = min(0x7fffffffULL, + __scale_tsc(kvm_max_tsc_scaling_ratio, tsc_khz)); + kvm_max_guest_tsc_khz = max; + kvm_default_tsc_scaling_ratio = 1ULL << kvm_tsc_scaling_ratio_frac_bits; + } kvm_init_msr_list(); return 0; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 242a6d2b53ff..5706a2108f0a 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1183,4 +1183,5 @@ void kvm_arch_irq_bypass_start(struct irq_bypass_consumer *); int kvm_arch_update_irqfd_routing(struct kvm *kvm, unsigned int host_irq, uint32_t guest_irq, bool set); #endif /* CONFIG_HAVE_KVM_IRQ_BYPASS */ + #endif diff --git a/include/linux/math64.h b/include/linux/math64.h index c45c089bfdac..44282ec7b682 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -142,6 +142,13 @@ static inline u64 mul_u64_u32_shr(u64 a, u32 mul, unsigned int shift) } #endif /* mul_u64_u32_shr */ +#ifndef mul_u64_u64_shr +static inline u64 mul_u64_u64_shr(u64 a, u64 mul, unsigned int shift) +{ + return (u64)(((unsigned __int128)a * mul) >> shift); +} +#endif /* mul_u64_u64_shr */ + #else #ifndef mul_u64_u32_shr @@ -161,6 +168,50 @@ static inline u64 mul_u64_u32_shr(u64 a, u32 mul, unsigned int shift) } #endif /* mul_u64_u32_shr */ +#ifndef mul_u64_u64_shr +static inline u64 mul_u64_u64_shr(u64 a, u64 b, unsigned int shift) +{ + union { + u64 ll; + struct { +#ifdef __BIG_ENDIAN + u32 high, low; +#else + u32 low, high; +#endif + } l; + } rl, rm, rn, rh, a0, b0; + u64 c; + + a0.ll = a; + b0.ll = b; + + rl.ll = (u64)a0.l.low * b0.l.low; + rm.ll = (u64)a0.l.low * b0.l.high; + rn.ll = (u64)a0.l.high * b0.l.low; + rh.ll = (u64)a0.l.high * b0.l.high; + + /* + * Each of these lines computes a 64-bit intermediate result into "c", + * starting at bits 32-95. The low 32-bits go into the result of the + * multiplication, the high 32-bits are carried into the next step. + */ + rl.l.high = c = (u64)rl.l.high + rm.l.low + rn.l.low; + rh.l.low = c = (c >> 32) + rm.l.high + rn.l.high + rh.l.low; + rh.l.high = (c >> 32) + rh.l.high; + + /* + * The 128-bit result of the multiplication is in rl.ll and rh.ll, + * shift it right and throw away the high part of the result. + */ + if (shift == 0) + return rl.ll; + if (shift < 64) + return (rl.ll >> shift) | (rh.ll << (64 - shift)); + return rh.ll >> (shift & 63); +} +#endif /* mul_u64_u64_shr */ + #endif #endif /* _LINUX_MATH64_H */ -- cgit v1.2.3-71-gd317 From 381d585c80e34988269bd7901ad910981e900be1 Mon Sep 17 00:00:00 2001 From: Haozhong Zhang Date: Tue, 20 Oct 2015 15:39:04 +0800 Subject: KVM: x86: Replace call-back set_tsc_khz() with a common function Both VMX and SVM propagate virtual_tsc_khz in the same way, so this patch removes the call-back set_tsc_khz() and replaces it with a common function. Signed-off-by: Haozhong Zhang Signed-off-by: Paolo Bonzini --- arch/x86/include/asm/kvm_host.h | 1 - arch/x86/kvm/svm.c | 36 -------------------------------- arch/x86/kvm/vmx.c | 17 --------------- arch/x86/kvm/x86.c | 46 ++++++++++++++++++++++++++++++++++++----- include/linux/math64.h | 29 ++++++++++++++++++++++++++ 5 files changed, 70 insertions(+), 59 deletions(-) (limited to 'include') diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 52d1419968eb..c5a3f3d66e90 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -853,7 +853,6 @@ struct kvm_x86_ops { bool (*has_wbinvd_exit)(void); - void (*set_tsc_khz)(struct kvm_vcpu *vcpu, u32 user_tsc_khz, bool scale); u64 (*read_tsc_offset)(struct kvm_vcpu *vcpu); void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 65f4f1947a62..f6e49a6c9ab0 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -957,41 +957,6 @@ static void init_sys_seg(struct vmcb_seg *seg, uint32_t type) seg->base = 0; } -static void svm_set_tsc_khz(struct kvm_vcpu *vcpu, u32 user_tsc_khz, bool scale) -{ - u64 ratio; - u64 khz; - - /* Guest TSC same frequency as host TSC? */ - if (!scale) { - vcpu->arch.tsc_scaling_ratio = TSC_RATIO_DEFAULT; - return; - } - - /* TSC scaling supported? */ - if (!boot_cpu_has(X86_FEATURE_TSCRATEMSR)) { - if (user_tsc_khz > tsc_khz) { - vcpu->arch.tsc_catchup = 1; - vcpu->arch.tsc_always_catchup = 1; - } else - WARN(1, "user requested TSC rate below hardware speed\n"); - return; - } - - khz = user_tsc_khz; - - /* TSC scaling required - calculate ratio */ - ratio = khz << 32; - do_div(ratio, tsc_khz); - - if (ratio == 0 || ratio & TSC_RATIO_RSVD) { - WARN_ONCE(1, "Invalid TSC ratio - virtual-tsc-khz=%u\n", - user_tsc_khz); - return; - } - vcpu->arch.tsc_scaling_ratio = ratio; -} - static u64 svm_read_tsc_offset(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); @@ -4402,7 +4367,6 @@ static struct kvm_x86_ops svm_x86_ops = { .has_wbinvd_exit = svm_has_wbinvd_exit, - .set_tsc_khz = svm_set_tsc_khz, .read_tsc_offset = svm_read_tsc_offset, .write_tsc_offset = svm_write_tsc_offset, .adjust_tsc_offset = svm_adjust_tsc_offset, diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index a26ed285931b..baee46893899 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2382,22 +2382,6 @@ static u64 vmx_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc) return host_tsc + tsc_offset; } -/* - * Engage any workarounds for mis-matched TSC rates. Currently limited to - * software catchup for faster rates on slower CPUs. - */ -static void vmx_set_tsc_khz(struct kvm_vcpu *vcpu, u32 user_tsc_khz, bool scale) -{ - if (!scale) - return; - - if (user_tsc_khz > tsc_khz) { - vcpu->arch.tsc_catchup = 1; - vcpu->arch.tsc_always_catchup = 1; - } else - WARN(1, "user requested TSC rate below hardware speed\n"); -} - static u64 vmx_read_tsc_offset(struct kvm_vcpu *vcpu) { return vmcs_read64(TSC_OFFSET); @@ -10826,7 +10810,6 @@ static struct kvm_x86_ops vmx_x86_ops = { .has_wbinvd_exit = cpu_has_vmx_wbinvd_exit, - .set_tsc_khz = vmx_set_tsc_khz, .read_tsc_offset = vmx_read_tsc_offset, .write_tsc_offset = vmx_write_tsc_offset, .adjust_tsc_offset = vmx_adjust_tsc_offset, diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 1473e64cb744..c314e8d22a67 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1253,7 +1253,43 @@ static u32 adjust_tsc_khz(u32 khz, s32 ppm) return v; } -static void kvm_set_tsc_khz(struct kvm_vcpu *vcpu, u32 this_tsc_khz) +static int set_tsc_khz(struct kvm_vcpu *vcpu, u32 user_tsc_khz, bool scale) +{ + u64 ratio; + + /* Guest TSC same frequency as host TSC? */ + if (!scale) { + vcpu->arch.tsc_scaling_ratio = kvm_default_tsc_scaling_ratio; + return 0; + } + + /* TSC scaling supported? */ + if (!kvm_has_tsc_control) { + if (user_tsc_khz > tsc_khz) { + vcpu->arch.tsc_catchup = 1; + vcpu->arch.tsc_always_catchup = 1; + return 0; + } else { + WARN(1, "user requested TSC rate below hardware speed\n"); + return -1; + } + } + + /* TSC scaling required - calculate ratio */ + ratio = mul_u64_u32_div(1ULL << kvm_tsc_scaling_ratio_frac_bits, + user_tsc_khz, tsc_khz); + + if (ratio == 0 || ratio >= kvm_max_tsc_scaling_ratio) { + WARN_ONCE(1, "Invalid TSC scaling ratio - virtual-tsc-khz=%u\n", + user_tsc_khz); + return -1; + } + + vcpu->arch.tsc_scaling_ratio = ratio; + return 0; +} + +static int kvm_set_tsc_khz(struct kvm_vcpu *vcpu, u32 this_tsc_khz) { u32 thresh_lo, thresh_hi; int use_scaling = 0; @@ -1262,7 +1298,7 @@ static void kvm_set_tsc_khz(struct kvm_vcpu *vcpu, u32 this_tsc_khz) if (this_tsc_khz == 0) { /* set tsc_scaling_ratio to a safe value */ vcpu->arch.tsc_scaling_ratio = kvm_default_tsc_scaling_ratio; - return; + return -1; } /* Compute a scale to convert nanoseconds in TSC cycles */ @@ -1283,7 +1319,7 @@ static void kvm_set_tsc_khz(struct kvm_vcpu *vcpu, u32 this_tsc_khz) pr_debug("kvm: requested TSC rate %u falls outside tolerance [%u,%u]\n", this_tsc_khz, thresh_lo, thresh_hi); use_scaling = 1; } - kvm_x86_ops->set_tsc_khz(vcpu, this_tsc_khz, use_scaling); + return set_tsc_khz(vcpu, this_tsc_khz, use_scaling); } static u64 compute_guest_tsc(struct kvm_vcpu *vcpu, s64 kernel_ns) @@ -3353,9 +3389,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp, if (user_tsc_khz == 0) user_tsc_khz = tsc_khz; - kvm_set_tsc_khz(vcpu, user_tsc_khz); + if (!kvm_set_tsc_khz(vcpu, user_tsc_khz)) + r = 0; - r = 0; goto out; } case KVM_GET_TSC_KHZ: { diff --git a/include/linux/math64.h b/include/linux/math64.h index 44282ec7b682..6e8b5b270ffe 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -214,4 +214,33 @@ static inline u64 mul_u64_u64_shr(u64 a, u64 b, unsigned int shift) #endif +#ifndef mul_u64_u32_div +static inline u64 mul_u64_u32_div(u64 a, u32 mul, u32 divisor) +{ + union { + u64 ll; + struct { +#ifdef __BIG_ENDIAN + u32 high, low; +#else + u32 low, high; +#endif + } l; + } u, rl, rh; + + u.ll = a; + rl.ll = (u64)u.l.low * mul; + rh.ll = (u64)u.l.high * mul + rl.l.high; + + /* Bits 32-63 of the result will be in rh.l.low. */ + rl.l.high = do_div(rh.ll, divisor); + + /* Bits 0-31 of the result will be in rl.l.low. */ + do_div(rl.ll, divisor); + + rl.l.high = rh.l.low; + return rl.ll; +} +#endif /* mul_u64_u32_div */ + #endif /* _LINUX_MATH64_H */ -- cgit v1.2.3-71-gd317 From f70cd6b07e629f367bb9b1ac9d0e3e669eb325c0 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 28 Oct 2015 02:39:55 +0100 Subject: context_tracking: remove duplicate enabled check All calls to context_tracking_enter and context_tracking_exit are already checking context_tracking_is_enabled, except the context_tracking_user_enter and context_tracking_user_exit functions left in for the benefit of assembly calls. Pull the check up to those functions, by making them simple wrappers around the user_enter and user_exit inline functions. Cc: Frederic Weisbecker Cc: Paul McKenney Reviewed-by: Rik van Riel Tested-by: Rik van Riel Acked-by: Andy Lutomirski Signed-off-by: Paolo Bonzini --- include/linux/context_tracking.h | 4 ++-- kernel/context_tracking.c | 16 ++-------------- 2 files changed, 4 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h index 008fc67d0d96..6ef136ff0897 100644 --- a/include/linux/context_tracking.h +++ b/include/linux/context_tracking.h @@ -18,13 +18,13 @@ extern void context_tracking_user_exit(void); static inline void user_enter(void) { if (context_tracking_is_enabled()) - context_tracking_user_enter(); + context_tracking_enter(CONTEXT_USER); } static inline void user_exit(void) { if (context_tracking_is_enabled()) - context_tracking_user_exit(); + context_tracking_exit(CONTEXT_USER); } static inline enum ctx_state exception_enter(void) diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c index 0a495ab35bc7..6d4c6ce21275 100644 --- a/kernel/context_tracking.c +++ b/kernel/context_tracking.c @@ -62,15 +62,6 @@ void context_tracking_enter(enum ctx_state state) { unsigned long flags; - /* - * Repeat the user_enter() check here because some archs may be calling - * this from asm and if no CPU needs context tracking, they shouldn't - * go further. Repeat the check here until they support the inline static - * key check. - */ - if (!context_tracking_is_enabled()) - return; - /* * Some contexts may involve an exception occuring in an irq, * leading to that nesting: @@ -128,7 +119,7 @@ EXPORT_SYMBOL_GPL(context_tracking_enter); void context_tracking_user_enter(void) { - context_tracking_enter(CONTEXT_USER); + user_enter(); } NOKPROBE_SYMBOL(context_tracking_user_enter); @@ -148,9 +139,6 @@ void context_tracking_exit(enum ctx_state state) { unsigned long flags; - if (!context_tracking_is_enabled()) - return; - if (in_interrupt()) return; @@ -181,7 +169,7 @@ EXPORT_SYMBOL_GPL(context_tracking_exit); void context_tracking_user_exit(void) { - context_tracking_exit(CONTEXT_USER); + user_exit(); } NOKPROBE_SYMBOL(context_tracking_user_exit); -- cgit v1.2.3-71-gd317 From d0e536d89395ecd8ab78fe999dc4d6f5d140ce46 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 28 Oct 2015 02:39:56 +0100 Subject: context_tracking: avoid irq_save/irq_restore on guest entry and exit guest_enter and guest_exit must be called with interrupts disabled, since they take the vtime_seqlock with write_seq{lock,unlock}. Therefore, it is not necessary to check for exceptions, nor to save/restore the IRQ state, when context tracking functions are called by guest_enter and guest_exit. Split the body of context_tracking_entry and context_tracking_exit out to __-prefixed functions, and use them from KVM. Rik van Riel has measured this to speed up a tight vmentry/vmexit loop by about 2%. Cc: Andy Lutomirski Cc: Frederic Weisbecker Cc: Paul McKenney Reviewed-by: Rik van Riel Tested-by: Rik van Riel Signed-off-by: Paolo Bonzini --- include/linux/context_tracking.h | 8 +++-- kernel/context_tracking.c | 64 ++++++++++++++++++++++++---------------- 2 files changed, 44 insertions(+), 28 deletions(-) (limited to 'include') diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h index 6ef136ff0897..68b575afe5f5 100644 --- a/include/linux/context_tracking.h +++ b/include/linux/context_tracking.h @@ -10,6 +10,10 @@ #ifdef CONFIG_CONTEXT_TRACKING extern void context_tracking_cpu_set(int cpu); +/* Called with interrupts disabled. */ +extern void __context_tracking_enter(enum ctx_state state); +extern void __context_tracking_exit(enum ctx_state state); + extern void context_tracking_enter(enum ctx_state state); extern void context_tracking_exit(enum ctx_state state); extern void context_tracking_user_enter(void); @@ -88,13 +92,13 @@ static inline void guest_enter(void) current->flags |= PF_VCPU; if (context_tracking_is_enabled()) - context_tracking_enter(CONTEXT_GUEST); + __context_tracking_enter(CONTEXT_GUEST); } static inline void guest_exit(void) { if (context_tracking_is_enabled()) - context_tracking_exit(CONTEXT_GUEST); + __context_tracking_exit(CONTEXT_GUEST); if (vtime_accounting_enabled()) vtime_guest_exit(current); diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c index 6d4c6ce21275..d8560ee3bab7 100644 --- a/kernel/context_tracking.c +++ b/kernel/context_tracking.c @@ -58,27 +58,13 @@ static void context_tracking_recursion_exit(void) * instructions to execute won't use any RCU read side critical section * because this function sets RCU in extended quiescent state. */ -void context_tracking_enter(enum ctx_state state) +void __context_tracking_enter(enum ctx_state state) { - unsigned long flags; - - /* - * Some contexts may involve an exception occuring in an irq, - * leading to that nesting: - * rcu_irq_enter() rcu_user_exit() rcu_user_exit() rcu_irq_exit() - * This would mess up the dyntick_nesting count though. And rcu_irq_*() - * helpers are enough to protect RCU uses inside the exception. So - * just return immediately if we detect we are in an IRQ. - */ - if (in_interrupt()) - return; - /* Kernel threads aren't supposed to go to userspace */ WARN_ON_ONCE(!current->mm); - local_irq_save(flags); if (!context_tracking_recursion_enter()) - goto out_irq_restore; + return; if ( __this_cpu_read(context_tracking.state) != state) { if (__this_cpu_read(context_tracking.active)) { @@ -111,7 +97,27 @@ void context_tracking_enter(enum ctx_state state) __this_cpu_write(context_tracking.state, state); } context_tracking_recursion_exit(); -out_irq_restore: +} +NOKPROBE_SYMBOL(__context_tracking_enter); +EXPORT_SYMBOL_GPL(__context_tracking_enter); + +void context_tracking_enter(enum ctx_state state) +{ + unsigned long flags; + + /* + * Some contexts may involve an exception occuring in an irq, + * leading to that nesting: + * rcu_irq_enter() rcu_user_exit() rcu_user_exit() rcu_irq_exit() + * This would mess up the dyntick_nesting count though. And rcu_irq_*() + * helpers are enough to protect RCU uses inside the exception. So + * just return immediately if we detect we are in an IRQ. + */ + if (in_interrupt()) + return; + + local_irq_save(flags); + __context_tracking_enter(state); local_irq_restore(flags); } NOKPROBE_SYMBOL(context_tracking_enter); @@ -135,16 +141,10 @@ NOKPROBE_SYMBOL(context_tracking_user_enter); * This call supports re-entrancy. This way it can be called from any exception * handler without needing to know if we came from userspace or not. */ -void context_tracking_exit(enum ctx_state state) +void __context_tracking_exit(enum ctx_state state) { - unsigned long flags; - - if (in_interrupt()) - return; - - local_irq_save(flags); if (!context_tracking_recursion_enter()) - goto out_irq_restore; + return; if (__this_cpu_read(context_tracking.state) == state) { if (__this_cpu_read(context_tracking.active)) { @@ -161,7 +161,19 @@ void context_tracking_exit(enum ctx_state state) __this_cpu_write(context_tracking.state, CONTEXT_KERNEL); } context_tracking_recursion_exit(); -out_irq_restore: +} +NOKPROBE_SYMBOL(__context_tracking_exit); +EXPORT_SYMBOL_GPL(__context_tracking_exit); + +void context_tracking_exit(enum ctx_state state) +{ + unsigned long flags; + + if (in_interrupt()) + return; + + local_irq_save(flags); + __context_tracking_exit(state); local_irq_restore(flags); } NOKPROBE_SYMBOL(context_tracking_exit); -- cgit v1.2.3-71-gd317 From d1cd21427747f15920cd726f5f67a07880e7dee4 Mon Sep 17 00:00:00 2001 From: Jonathan Richardson Date: Fri, 16 Oct 2015 17:40:58 -0700 Subject: pwm: Set enable state properly on failed call to enable The pwm_enable() function didn't clear the enabled bit if a call to the driver's ->enable() callback returned an error. The result was that the state of the PWM core was wrong. Clearing the bit when enable returns an error ensures the state is properly set. Tested-by: Jonathan Richardson Reviewed-by: Dmitry Torokhov Signed-off-by: Jonathan Richardson [thierry.reding@gmail.com: add missing kerneldoc for the lock] Signed-off-by: Thierry Reding --- drivers/pwm/core.c | 33 ++++++++++++++++++++++++++------- include/linux/pwm.h | 3 +++ 2 files changed, 29 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 3f9df3ea3350..b8f6c309c160 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -269,6 +269,7 @@ int pwmchip_add_with_polarity(struct pwm_chip *chip, pwm->pwm = chip->base + i; pwm->hwpwm = i; pwm->polarity = polarity; + mutex_init(&pwm->lock); radix_tree_insert(&pwm_tree, pwm->pwm, pwm); } @@ -473,16 +474,22 @@ int pwm_set_polarity(struct pwm_device *pwm, enum pwm_polarity polarity) if (!pwm->chip->ops->set_polarity) return -ENOSYS; - if (pwm_is_enabled(pwm)) - return -EBUSY; + mutex_lock(&pwm->lock); + + if (pwm_is_enabled(pwm)) { + err = -EBUSY; + goto unlock; + } err = pwm->chip->ops->set_polarity(pwm->chip, pwm, polarity); if (err) - return err; + goto unlock; pwm->polarity = polarity; - return 0; +unlock: + mutex_unlock(&pwm->lock); + return err; } EXPORT_SYMBOL_GPL(pwm_set_polarity); @@ -494,10 +501,22 @@ EXPORT_SYMBOL_GPL(pwm_set_polarity); */ int pwm_enable(struct pwm_device *pwm) { - if (pwm && !test_and_set_bit(PWMF_ENABLED, &pwm->flags)) - return pwm->chip->ops->enable(pwm->chip, pwm); + int err = 0; + + if (!pwm) + return -EINVAL; + + mutex_lock(&pwm->lock); + + if (!test_and_set_bit(PWMF_ENABLED, &pwm->flags)) { + err = pwm->chip->ops->enable(pwm->chip, pwm); + if (err) + clear_bit(PWMF_ENABLED, &pwm->flags); + } + + mutex_unlock(&pwm->lock); - return pwm ? 0 : -EINVAL; + return err; } EXPORT_SYMBOL_GPL(pwm_enable); diff --git a/include/linux/pwm.h b/include/linux/pwm.h index d681f6875aef..cfc3ed46cad2 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -2,6 +2,7 @@ #define __LINUX_PWM_H #include +#include #include struct pwm_device; @@ -87,6 +88,7 @@ enum { * @pwm: global index of the PWM device * @chip: PWM chip providing this PWM device * @chip_data: chip-private data associated with the PWM device + * @lock: used to serialize accesses to the PWM device where necessary * @period: period of the PWM signal (in nanoseconds) * @duty_cycle: duty cycle of the PWM signal (in nanoseconds) * @polarity: polarity of the PWM signal @@ -98,6 +100,7 @@ struct pwm_device { unsigned int pwm; struct pwm_chip *chip; void *chip_data; + struct mutex lock; unsigned int period; unsigned int duty_cycle; -- cgit v1.2.3-71-gd317 From aabc92bbe3cfe4c545f8ccdaaeeea012a46f0abf Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 10 Nov 2015 14:31:18 +0100 Subject: net: add __netdev_alloc_pcpu_stats() to indicate gfp flags nf_tables may create percpu counters from the packet path through its dynamic set instantiation infrastructure, so we need a way to allocate this through GFP_ATOMIC. Signed-off-by: Pablo Neira Ayuso Acked-by: David S. Miller --- include/linux/netdevice.h | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 2c00772bd136..e9d0c8a75380 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2068,20 +2068,23 @@ struct pcpu_sw_netstats { struct u64_stats_sync syncp; }; -#define netdev_alloc_pcpu_stats(type) \ -({ \ - typeof(type) __percpu *pcpu_stats = alloc_percpu(type); \ - if (pcpu_stats) { \ - int __cpu; \ - for_each_possible_cpu(__cpu) { \ - typeof(type) *stat; \ - stat = per_cpu_ptr(pcpu_stats, __cpu); \ - u64_stats_init(&stat->syncp); \ - } \ - } \ - pcpu_stats; \ +#define __netdev_alloc_pcpu_stats(type, gfp) \ +({ \ + typeof(type) __percpu *pcpu_stats = alloc_percpu_gfp(type, gfp);\ + if (pcpu_stats) { \ + int __cpu; \ + for_each_possible_cpu(__cpu) { \ + typeof(type) *stat; \ + stat = per_cpu_ptr(pcpu_stats, __cpu); \ + u64_stats_init(&stat->syncp); \ + } \ + } \ + pcpu_stats; \ }) +#define netdev_alloc_pcpu_stats(type) \ + __netdev_alloc_pcpu_stats(type, GFP_KERNEL); + #include /* netdevice notifier chain. Please remember to update the rtnetlink -- cgit v1.2.3-71-gd317 From 086f332167d64b645d37405854f049b9ad7371ab Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Tue, 10 Nov 2015 13:39:42 +0100 Subject: netfilter: nf_tables: add clone interface to expression operations With the conversion of the counter expressions to make it percpu, we need to clone the percpu memory area, otherwise we crash when using counters from flow tables. Signed-off-by: Pablo Neira Ayuso --- include/net/netfilter/nf_tables.h | 16 +++++++++++-- net/netfilter/nft_counter.c | 49 ++++++++++++++++++++++++++++++++------- net/netfilter/nft_dynset.c | 5 ++-- 3 files changed, 58 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index c9149cc0a02d..4bd7508bedc9 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -618,6 +618,8 @@ struct nft_expr_ops { void (*eval)(const struct nft_expr *expr, struct nft_regs *regs, const struct nft_pktinfo *pkt); + int (*clone)(struct nft_expr *dst, + const struct nft_expr *src); unsigned int size; int (*init)(const struct nft_ctx *ctx, @@ -660,10 +662,20 @@ void nft_expr_destroy(const struct nft_ctx *ctx, struct nft_expr *expr); int nft_expr_dump(struct sk_buff *skb, unsigned int attr, const struct nft_expr *expr); -static inline void nft_expr_clone(struct nft_expr *dst, struct nft_expr *src) +static inline int nft_expr_clone(struct nft_expr *dst, struct nft_expr *src) { + int err; + __module_get(src->ops->type->owner); - memcpy(dst, src, src->ops->size); + if (src->ops->clone) { + dst->ops = src->ops; + err = src->ops->clone(dst, src); + if (err < 0) + return err; + } else { + memcpy(dst, src, src->ops->size); + } + return 0; } /** diff --git a/net/netfilter/nft_counter.c b/net/netfilter/nft_counter.c index 1067fb4c1ffa..c7808fc19719 100644 --- a/net/netfilter/nft_counter.c +++ b/net/netfilter/nft_counter.c @@ -47,27 +47,34 @@ static void nft_counter_eval(const struct nft_expr *expr, local_bh_enable(); } -static int nft_counter_dump(struct sk_buff *skb, const struct nft_expr *expr) +static void nft_counter_fetch(const struct nft_counter_percpu __percpu *counter, + struct nft_counter *total) { - struct nft_counter_percpu_priv *priv = nft_expr_priv(expr); - struct nft_counter_percpu *cpu_stats; - struct nft_counter total; + const struct nft_counter_percpu *cpu_stats; u64 bytes, packets; unsigned int seq; int cpu; - memset(&total, 0, sizeof(total)); + memset(total, 0, sizeof(*total)); for_each_possible_cpu(cpu) { - cpu_stats = per_cpu_ptr(priv->counter, cpu); + cpu_stats = per_cpu_ptr(counter, cpu); do { seq = u64_stats_fetch_begin_irq(&cpu_stats->syncp); bytes = cpu_stats->counter.bytes; packets = cpu_stats->counter.packets; } while (u64_stats_fetch_retry_irq(&cpu_stats->syncp, seq)); - total.packets += packets; - total.bytes += bytes; + total->packets += packets; + total->bytes += bytes; } +} + +static int nft_counter_dump(struct sk_buff *skb, const struct nft_expr *expr) +{ + struct nft_counter_percpu_priv *priv = nft_expr_priv(expr); + struct nft_counter total; + + nft_counter_fetch(priv->counter, &total); if (nla_put_be64(skb, NFTA_COUNTER_BYTES, cpu_to_be64(total.bytes)) || nla_put_be64(skb, NFTA_COUNTER_PACKETS, cpu_to_be64(total.packets))) @@ -118,6 +125,31 @@ static void nft_counter_destroy(const struct nft_ctx *ctx, free_percpu(priv->counter); } +static int nft_counter_clone(struct nft_expr *dst, const struct nft_expr *src) +{ + struct nft_counter_percpu_priv *priv = nft_expr_priv(src); + struct nft_counter_percpu_priv *priv_clone = nft_expr_priv(dst); + struct nft_counter_percpu __percpu *cpu_stats; + struct nft_counter_percpu *this_cpu; + struct nft_counter total; + + nft_counter_fetch(priv->counter, &total); + + cpu_stats = __netdev_alloc_pcpu_stats(struct nft_counter_percpu, + GFP_ATOMIC); + if (cpu_stats == NULL) + return ENOMEM; + + preempt_disable(); + this_cpu = this_cpu_ptr(cpu_stats); + this_cpu->counter.packets = total.packets; + this_cpu->counter.bytes = total.bytes; + preempt_enable(); + + priv_clone->counter = cpu_stats; + return 0; +} + static struct nft_expr_type nft_counter_type; static const struct nft_expr_ops nft_counter_ops = { .type = &nft_counter_type, @@ -126,6 +158,7 @@ static const struct nft_expr_ops nft_counter_ops = { .init = nft_counter_init, .destroy = nft_counter_destroy, .dump = nft_counter_dump, + .clone = nft_counter_clone, }; static struct nft_expr_type nft_counter_type __read_mostly = { diff --git a/net/netfilter/nft_dynset.c b/net/netfilter/nft_dynset.c index 513a8ef60a59..9dec3bd1b63c 100644 --- a/net/netfilter/nft_dynset.c +++ b/net/netfilter/nft_dynset.c @@ -50,8 +50,9 @@ static void *nft_dynset_new(struct nft_set *set, const struct nft_expr *expr, } ext = nft_set_elem_ext(set, elem); - if (priv->expr != NULL) - nft_expr_clone(nft_set_ext_expr(ext), priv->expr); + if (priv->expr != NULL && + nft_expr_clone(nft_set_ext_expr(ext), priv->expr) < 0) + return NULL; return elem; } -- cgit v1.2.3-71-gd317 From b1d06b60e90cd5016798b9984f8e420e753f4846 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Fri, 6 Nov 2015 19:28:22 -0800 Subject: of: Provide static inline function for of_translate_address if needed If OF_ADDRESS is not configured, builds can fail with errors such as drivers/net/ethernet/hisilicon/hns_mdio.c: In function 'hns_mdio_bus_name': drivers/net/ethernet/hisilicon/hns_mdio.c:411:3: error: implicit declaration of function 'of_translate_address' as currently seen when building sparc:allmodconfig. Introduce a static inline function if OF_ADDRESS is not configured to fix the build failure. Return OF_BAD_ADDR in this case. For this to work, the definition of OF_BAD_ADDR has to be moved outside CONFIG_OF conditional code. Fixes: 876133d3161d ("net: hisilicon: add OF dependency") Cc: Arnd Bergmann Signed-off-by: Guenter Roeck Reviewed-by: Arnd Bergmann Reviewed-by: Frank Rowand Signed-off-by: Rob Herring --- include/linux/of.h | 4 ++-- include/linux/of_address.h | 7 +++++++ 2 files changed, 9 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/of.h b/include/linux/of.h index 2194b8ca41f9..dd10626a615f 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -126,6 +126,8 @@ extern raw_spinlock_t devtree_lock; #define OF_POPULATED 3 /* device already created for the node */ #define OF_POPULATED_BUS 4 /* of_platform_populate recursed to children of this node */ +#define OF_BAD_ADDR ((u64)-1) + #ifdef CONFIG_OF void of_core_init(void); @@ -229,8 +231,6 @@ static inline unsigned long of_read_ulong(const __be32 *cell, int size) #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags) #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags) -#define OF_BAD_ADDR ((u64)-1) - static inline const char *of_node_full_name(const struct device_node *np) { return np ? np->full_name : ""; diff --git a/include/linux/of_address.h b/include/linux/of_address.h index d88e81be6368..507daad0bc8d 100644 --- a/include/linux/of_address.h +++ b/include/linux/of_address.h @@ -57,6 +57,13 @@ extern int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *size); extern bool of_dma_is_coherent(struct device_node *np); #else /* CONFIG_OF_ADDRESS */ + +static inline u64 of_translate_address(struct device_node *np, + const __be32 *addr) +{ + return OF_BAD_ADDR; +} + static inline struct device_node *of_find_matching_node_by_address( struct device_node *from, const struct of_device_id *matches, -- cgit v1.2.3-71-gd317 From 5c50002963369c7c622b18ff751719eadbe225c5 Mon Sep 17 00:00:00 2001 From: Ross Zwisler Date: Tue, 13 Oct 2015 16:51:02 -0600 Subject: vfs: remove unused wrapper block_page_mkwrite() The function currently called "__block_page_mkwrite()" used to be called "block_page_mkwrite()" until a wrapper for this function was added by: commit 24da4fab5a61 ("vfs: Create __block_page_mkwrite() helper passing error values back") This wrapper, the current "block_page_mkwrite()", is currently unused. __block_page_mkwrite() is used directly by ext4, nilfs2 and xfs. Remove the unused wrapper, rename __block_page_mkwrite() back to block_page_mkwrite() and update the comment above block_page_mkwrite(). Signed-off-by: Ross Zwisler Reviewed-by: Jan Kara Cc: Jan Kara Cc: Christoph Hellwig Cc: Al Viro Signed-off-by: Al Viro --- fs/buffer.c | 24 ++---------------------- fs/ext4/inode.c | 4 ++-- fs/nilfs2/file.c | 2 +- fs/xfs/xfs_file.c | 2 +- include/linux/buffer_head.h | 2 -- 5 files changed, 6 insertions(+), 28 deletions(-) (limited to 'include') diff --git a/fs/buffer.c b/fs/buffer.c index 51aff0296ce2..4f4cd959da7c 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -2420,9 +2420,9 @@ EXPORT_SYMBOL(block_commit_write); * unlock the page. * * Direct callers of this function should protect against filesystem freezing - * using sb_start_write() - sb_end_write() functions. + * using sb_start_pagefault() - sb_end_pagefault() functions. */ -int __block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf, +int block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf, get_block_t get_block) { struct page *page = vmf->page; @@ -2459,26 +2459,6 @@ out_unlock: unlock_page(page); return ret; } -EXPORT_SYMBOL(__block_page_mkwrite); - -int block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf, - get_block_t get_block) -{ - int ret; - struct super_block *sb = file_inode(vma->vm_file)->i_sb; - - sb_start_pagefault(sb); - - /* - * Update file times before taking page lock. We may end up failing the - * fault so this update may be superfluous but who really cares... - */ - file_update_time(vma->vm_file); - - ret = __block_page_mkwrite(vma, vmf, get_block); - sb_end_pagefault(sb); - return block_page_mkwrite_return(ret); -} EXPORT_SYMBOL(block_page_mkwrite); /* diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 7d1aad1d9313..ea433a7f4bca 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -5283,7 +5283,7 @@ int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) !ext4_should_journal_data(inode) && !ext4_nonda_switch(inode->i_sb)) { do { - ret = __block_page_mkwrite(vma, vmf, + ret = block_page_mkwrite(vma, vmf, ext4_da_get_block_prep); } while (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)); @@ -5330,7 +5330,7 @@ retry_alloc: ret = VM_FAULT_SIGBUS; goto out; } - ret = __block_page_mkwrite(vma, vmf, get_block); + ret = block_page_mkwrite(vma, vmf, get_block); if (!ret && ext4_should_journal_data(inode)) { if (ext4_walk_page_buffers(handle, page_buffers(page), 0, PAGE_CACHE_SIZE, NULL, do_journal_get_write_access)) { diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c index 54575e3cc1a2..088ba001c6ef 100644 --- a/fs/nilfs2/file.c +++ b/fs/nilfs2/file.c @@ -109,7 +109,7 @@ static int nilfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) goto out; file_update_time(vma->vm_file); - ret = __block_page_mkwrite(vma, vmf, nilfs_get_block); + ret = block_page_mkwrite(vma, vmf, nilfs_get_block); if (ret) { nilfs_transaction_abort(inode->i_sb); goto out; diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index e78feb400e22..f80e90f95ad8 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1506,7 +1506,7 @@ xfs_filemap_page_mkwrite( ret = __dax_mkwrite(vma, vmf, xfs_get_blocks_direct, xfs_end_io_dax_write); } else { - ret = __block_page_mkwrite(vma, vmf, xfs_get_blocks); + ret = block_page_mkwrite(vma, vmf, xfs_get_blocks); ret = block_page_mkwrite_return(ret); } diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index e6797ded700e..89d9aa9e79bf 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -227,8 +227,6 @@ int cont_write_begin(struct file *, struct address_space *, loff_t, get_block_t *, loff_t *); int generic_cont_expand_simple(struct inode *inode, loff_t size); int block_commit_write(struct page *page, unsigned from, unsigned to); -int __block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf, - get_block_t get_block); int block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf, get_block_t get_block); /* Convert errno to return value from ->page_mkwrite() call */ -- cgit v1.2.3-71-gd317 From c8fffa643583e00eb9a783abbca251b11bc0d163 Mon Sep 17 00:00:00 2001 From: Ross Zwisler Date: Thu, 8 Oct 2015 17:07:20 -0600 Subject: vfs: remove stale comment in inode_operations The big warning comment that is currently at the end of struct inode_operations was added as part of this commit: 4aa7c6346be3 ("vfs: add i_op->dentry_open()") It was added to warn people not to use the newly added 'dentry_open' function pointer. This function pointer was removed as part of this commit: 4bacc9c9234c ("overlayfs: Make f_path always point to the overlay and f_inode to the underlay") The comment was left behind and now refers to nothing, so remove it. Signed-off-by: Ross Zwisler Signed-off-by: Al Viro --- include/linux/fs.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/fs.h b/include/linux/fs.h index 9a1cb8c605e0..f3bfbd7d3fa9 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1665,8 +1665,6 @@ struct inode_operations { umode_t create_mode, int *opened); int (*tmpfile) (struct inode *, struct dentry *, umode_t); int (*set_acl)(struct inode *, struct posix_acl *, int); - - /* WARNING: probably going away soon, do not use! */ } ____cacheline_aligned; ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector, -- cgit v1.2.3-71-gd317 From c0a9f72c156baf1e88c33c6ba4450647af1b8804 Mon Sep 17 00:00:00 2001 From: Alex Smith Date: Mon, 12 Oct 2015 10:40:43 +0100 Subject: irqchip: irq-mips-gic: Provide function to map GIC user section The GIC provides a "user-mode visible" section containing a mirror of the counter registers which can be mapped into user memory. This will be used by the VDSO time function implementations, so provide a function to map it in. When the GIC is not enabled in Kconfig a dummy inline version of this function is provided, along with "#define gic_present 0", so that we don't have to litter the VDSO code with ifdefs. [markos.chandras@imgtec.com: - Move mapping code to arch/mips/kernel/vdso.c and use a resource type to get the GIC usermode information - Avoid renaming function arguments and use __gic_base_addr to hold the base GIC address prior to ioremap.] [ralf@linux-mips.org: Fix up gic_get_usm_range() to compile and make inline again.] Signed-off-by: Alex Smith Signed-off-by: Markos Chandras Reviewed-by: Marc Zyngier Cc: Thomas Gleixner Cc: Jason Cooper Cc: Marc Zyngier Cc: Alex Smith Cc: Markos Chandras Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/11281/ Signed-off-by: Ralf Baechle --- drivers/irqchip/irq-mips-gic.c | 14 ++++++++++++++ include/linux/irqchip/mips-gic.h | 17 +++++++++++++++++ 2 files changed, 31 insertions(+) (limited to 'include') diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c index aeaa061f0dbf..9e17ef27a183 100644 --- a/drivers/irqchip/irq-mips-gic.c +++ b/drivers/irqchip/irq-mips-gic.c @@ -29,6 +29,7 @@ struct gic_pcpu_mask { DECLARE_BITMAP(pcpu_mask, GIC_MAX_INTRS); }; +static unsigned long __gic_base_addr; static void __iomem *gic_base; static struct gic_pcpu_mask pcpu_masks[NR_CPUS]; static DEFINE_SPINLOCK(gic_lock); @@ -301,6 +302,17 @@ int gic_get_c0_fdc_int(void) GIC_LOCAL_TO_HWIRQ(GIC_LOCAL_INT_FDC)); } +int gic_get_usm_range(struct resource *gic_usm_res) +{ + if (!gic_present) + return -1; + + gic_usm_res->start = __gic_base_addr + USM_VISIBLE_SECTION_OFS; + gic_usm_res->end = gic_usm_res->start + (USM_VISIBLE_SECTION_SIZE - 1); + + return 0; +} + static void gic_handle_shared_int(bool chained) { unsigned int i, intr, virq, gic_reg_step = mips_cm_is64 ? 8 : 4; @@ -798,6 +810,8 @@ static void __init __gic_init(unsigned long gic_base_addr, { unsigned int gicconfig; + __gic_base_addr = gic_base_addr; + gic_base = ioremap_nocache(gic_base_addr, gic_addrspace_size); gicconfig = gic_read(GIC_REG(SHARED, GIC_SH_CONFIG)); diff --git a/include/linux/irqchip/mips-gic.h b/include/linux/irqchip/mips-gic.h index 4e6861605050..ce824db48d64 100644 --- a/include/linux/irqchip/mips-gic.h +++ b/include/linux/irqchip/mips-gic.h @@ -9,6 +9,7 @@ #define __LINUX_IRQCHIP_MIPS_GIC_H #include +#include #define GIC_MAX_INTRS 256 @@ -245,6 +246,8 @@ #define GIC_SHARED_TO_HWIRQ(x) (GIC_SHARED_HWIRQ_BASE + (x)) #define GIC_HWIRQ_TO_SHARED(x) ((x) - GIC_SHARED_HWIRQ_BASE) +#ifdef CONFIG_MIPS_GIC + extern unsigned int gic_present; extern void gic_init(unsigned long gic_base_addr, @@ -264,4 +267,18 @@ extern unsigned int plat_ipi_resched_int_xlate(unsigned int); extern int gic_get_c0_compare_int(void); extern int gic_get_c0_perfcount_int(void); extern int gic_get_c0_fdc_int(void); +extern int gic_get_usm_range(struct resource *gic_usm_res); + +#else /* CONFIG_MIPS_GIC */ + +#define gic_present 0 + +static inline int gic_get_usm_range(struct resource *gic_usm_res) +{ + /* Shouldn't be called. */ + return -1; +} + +#endif /* CONFIG_MIPS_GIC */ + #endif /* __LINUX_IRQCHIP_MIPS_GIC_H */ -- cgit v1.2.3-71-gd317 From e3a7a3bf362e2a8acc301e5eaec2631e740a8a95 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 11 Nov 2015 09:37:34 -0700 Subject: block: don't hardcode blk_qc_t -> tag mask Use the shift/mask we use elsewhere. Signed-off-by: Jens Axboe --- include/linux/blk_types.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 641e5a3ed58c..0fb65843ec1e 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -265,7 +265,7 @@ static inline unsigned int blk_qc_t_to_queue_num(blk_qc_t cookie) static inline unsigned int blk_qc_t_to_tag(blk_qc_t cookie) { - return cookie & 0xffff; + return cookie & ((1u << BLK_QC_T_SHIFT) - 1); } #endif /* __LINUX_BLK_TYPES_H */ -- cgit v1.2.3-71-gd317 From e409de992e3ea3674393465f07cc71c948edd87a Mon Sep 17 00:00:00 2001 From: Andreas Gruenbacher Date: Sun, 4 Oct 2015 19:18:52 +0200 Subject: 9p: xattr simplifications Now that the xattr handler is passed to the xattr handler operations, we can use the same get and set operations for the user, trusted, and security xattr namespaces. In those namespaces, we can access the full attribute name by "reattaching" the name prefix the vfs has skipped for us. Add a xattr_full_name helper to make this obvious in the code. For the "system.posix_acl_access" and "system.posix_acl_default" attributes, handler->prefix is the full attribute name; the suffix is the empty string. Signed-off-by: Andreas Gruenbacher Cc: Eric Van Hensbergen Cc: Ron Minnich Cc: Latchesar Ionkov Cc: v9fs-developer@lists.sourceforge.net Signed-off-by: Al Viro --- fs/9p/Makefile | 5 +-- fs/9p/acl.c | 51 +++---------------------------- fs/9p/xattr.c | 42 ++++++++++++++++++++++++++ fs/9p/xattr.h | 3 -- fs/9p/xattr_security.c | 82 -------------------------------------------------- fs/9p/xattr_trusted.c | 82 -------------------------------------------------- fs/9p/xattr_user.c | 82 -------------------------------------------------- fs/xattr.c | 24 +++++++++++++++ include/linux/xattr.h | 18 ++++++----- 9 files changed, 83 insertions(+), 306 deletions(-) delete mode 100644 fs/9p/xattr_security.c delete mode 100644 fs/9p/xattr_trusted.c delete mode 100644 fs/9p/xattr_user.c (limited to 'include') diff --git a/fs/9p/Makefile b/fs/9p/Makefile index ff7be98f84f2..9619ccadd2fc 100644 --- a/fs/9p/Makefile +++ b/fs/9p/Makefile @@ -10,10 +10,7 @@ obj-$(CONFIG_9P_FS) := 9p.o vfs_dentry.o \ v9fs.o \ fid.o \ - xattr.o \ - xattr_user.o \ - xattr_trusted.o + xattr.o 9p-$(CONFIG_9P_FSCACHE) += cache.o 9p-$(CONFIG_9P_FS_POSIX_ACL) += acl.o -9p-$(CONFIG_9P_FS_SECURITY) += xattr_security.o diff --git a/fs/9p/acl.c b/fs/9p/acl.c index e6fe82462043..a7e28890f5ef 100644 --- a/fs/9p/acl.c +++ b/fs/9p/acl.c @@ -212,31 +212,12 @@ int v9fs_acl_mode(struct inode *dir, umode_t *modep, return 0; } -static int v9fs_remote_get_acl(struct dentry *dentry, const char *name, - void *buffer, size_t size, int type) -{ - char *full_name; - - switch (type) { - case ACL_TYPE_ACCESS: - full_name = POSIX_ACL_XATTR_ACCESS; - break; - case ACL_TYPE_DEFAULT: - full_name = POSIX_ACL_XATTR_DEFAULT; - break; - default: - BUG(); - } - return v9fs_xattr_get(dentry, full_name, buffer, size); -} - static int v9fs_xattr_get_acl(const struct xattr_handler *handler, struct dentry *dentry, const char *name, void *buffer, size_t size) { struct v9fs_session_info *v9ses; struct posix_acl *acl; - int type = handler->flags; int error; if (strcmp(name, "") != 0) @@ -247,9 +228,9 @@ static int v9fs_xattr_get_acl(const struct xattr_handler *handler, * We allow set/get/list of acl when access=client is not specified */ if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT) - return v9fs_remote_get_acl(dentry, name, buffer, size, type); + return v9fs_xattr_get(dentry, handler->prefix, buffer, size); - acl = v9fs_get_cached_acl(d_inode(dentry), type); + acl = v9fs_get_cached_acl(d_inode(dentry), handler->flags); if (IS_ERR(acl)) return PTR_ERR(acl); if (acl == NULL) @@ -260,26 +241,6 @@ static int v9fs_xattr_get_acl(const struct xattr_handler *handler, return error; } -static int v9fs_remote_set_acl(struct dentry *dentry, const char *name, - const void *value, size_t size, - int flags, int type) -{ - char *full_name; - - switch (type) { - case ACL_TYPE_ACCESS: - full_name = POSIX_ACL_XATTR_ACCESS; - break; - case ACL_TYPE_DEFAULT: - full_name = POSIX_ACL_XATTR_DEFAULT; - break; - default: - BUG(); - } - return v9fs_xattr_set(dentry, full_name, value, size, flags); -} - - static int v9fs_xattr_set_acl(const struct xattr_handler *handler, struct dentry *dentry, const char *name, const void *value, size_t size, int flags) @@ -298,8 +259,8 @@ static int v9fs_xattr_set_acl(const struct xattr_handler *handler, * xattr value. We leave it to the server to validate */ if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT) - return v9fs_remote_set_acl(dentry, name, - value, size, flags, handler->flags); + return v9fs_xattr_set(dentry, handler->prefix, value, size, + flags); if (S_ISLNK(inode->i_mode)) return -EOPNOTSUPP; @@ -320,7 +281,6 @@ static int v9fs_xattr_set_acl(const struct xattr_handler *handler, switch (handler->flags) { case ACL_TYPE_ACCESS: - name = POSIX_ACL_XATTR_ACCESS; if (acl) { umode_t mode = inode->i_mode; retval = posix_acl_equiv_mode(acl, &mode); @@ -351,7 +311,6 @@ static int v9fs_xattr_set_acl(const struct xattr_handler *handler, } break; case ACL_TYPE_DEFAULT: - name = POSIX_ACL_XATTR_DEFAULT; if (!S_ISDIR(inode->i_mode)) { retval = acl ? -EINVAL : 0; goto err_out; @@ -360,7 +319,7 @@ static int v9fs_xattr_set_acl(const struct xattr_handler *handler, default: BUG(); } - retval = v9fs_xattr_set(dentry, name, value, size, flags); + retval = v9fs_xattr_set(dentry, handler->prefix, value, size, flags); if (!retval) set_cached_acl(inode, handler->flags, acl); err_out: diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c index 0cf44b6cccd6..e3d026ac382e 100644 --- a/fs/9p/xattr.c +++ b/fs/9p/xattr.c @@ -137,6 +137,48 @@ ssize_t v9fs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size) return v9fs_xattr_get(dentry, NULL, buffer, buffer_size); } +static int v9fs_xattr_handler_get(const struct xattr_handler *handler, + struct dentry *dentry, const char *name, + void *buffer, size_t size) +{ + const char *full_name = xattr_full_name(handler, name); + + if (strcmp(name, "") == 0) + return -EINVAL; + return v9fs_xattr_get(dentry, full_name, buffer, size); +} + +static int v9fs_xattr_handler_set(const struct xattr_handler *handler, + struct dentry *dentry, const char *name, + const void *value, size_t size, int flags) +{ + const char *full_name = xattr_full_name(handler, name); + + if (strcmp(name, "") == 0) + return -EINVAL; + return v9fs_xattr_set(dentry, full_name, value, size, flags); +} + +static struct xattr_handler v9fs_xattr_user_handler = { + .prefix = XATTR_USER_PREFIX, + .get = v9fs_xattr_handler_get, + .set = v9fs_xattr_handler_set, +}; + +static struct xattr_handler v9fs_xattr_trusted_handler = { + .prefix = XATTR_TRUSTED_PREFIX, + .get = v9fs_xattr_handler_get, + .set = v9fs_xattr_handler_set, +}; + +#ifdef CONFIG_9P_FS_SECURITY +static struct xattr_handler v9fs_xattr_security_handler = { + .prefix = XATTR_SECURITY_PREFIX, + .get = v9fs_xattr_handler_get, + .set = v9fs_xattr_handler_set, +}; +#endif + const struct xattr_handler *v9fs_xattr_handlers[] = { &v9fs_xattr_user_handler, &v9fs_xattr_trusted_handler, diff --git a/fs/9p/xattr.h b/fs/9p/xattr.h index d3e2ea3840be..c63c3bea5de5 100644 --- a/fs/9p/xattr.h +++ b/fs/9p/xattr.h @@ -19,9 +19,6 @@ #include extern const struct xattr_handler *v9fs_xattr_handlers[]; -extern struct xattr_handler v9fs_xattr_user_handler; -extern struct xattr_handler v9fs_xattr_trusted_handler; -extern struct xattr_handler v9fs_xattr_security_handler; extern const struct xattr_handler v9fs_xattr_acl_access_handler; extern const struct xattr_handler v9fs_xattr_acl_default_handler; diff --git a/fs/9p/xattr_security.c b/fs/9p/xattr_security.c deleted file mode 100644 index c0a470add13c..000000000000 --- a/fs/9p/xattr_security.c +++ /dev/null @@ -1,82 +0,0 @@ -/* - * Copyright IBM Corporation, 2010 - * Author Aneesh Kumar K.V - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2.1 of the GNU Lesser General Public License - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * - */ - - -#include -#include -#include -#include -#include "xattr.h" - -static int v9fs_xattr_security_get(const struct xattr_handler *handler, - struct dentry *dentry, const char *name, - void *buffer, size_t size) -{ - int retval; - char *full_name; - size_t name_len; - size_t prefix_len = XATTR_SECURITY_PREFIX_LEN; - - if (name == NULL) - return -EINVAL; - - if (strcmp(name, "") == 0) - return -EINVAL; - - name_len = strlen(name); - full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL); - if (!full_name) - return -ENOMEM; - memcpy(full_name, XATTR_SECURITY_PREFIX, prefix_len); - memcpy(full_name+prefix_len, name, name_len); - full_name[prefix_len + name_len] = '\0'; - - retval = v9fs_xattr_get(dentry, full_name, buffer, size); - kfree(full_name); - return retval; -} - -static int v9fs_xattr_security_set(const struct xattr_handler *handler, - struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) -{ - int retval; - char *full_name; - size_t name_len; - size_t prefix_len = XATTR_SECURITY_PREFIX_LEN; - - if (name == NULL) - return -EINVAL; - - if (strcmp(name, "") == 0) - return -EINVAL; - - name_len = strlen(name); - full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL); - if (!full_name) - return -ENOMEM; - memcpy(full_name, XATTR_SECURITY_PREFIX, prefix_len); - memcpy(full_name + prefix_len, name, name_len); - full_name[prefix_len + name_len] = '\0'; - - retval = v9fs_xattr_set(dentry, full_name, value, size, flags); - kfree(full_name); - return retval; -} - -struct xattr_handler v9fs_xattr_security_handler = { - .prefix = XATTR_SECURITY_PREFIX, - .get = v9fs_xattr_security_get, - .set = v9fs_xattr_security_set, -}; diff --git a/fs/9p/xattr_trusted.c b/fs/9p/xattr_trusted.c deleted file mode 100644 index b888a4eecd1a..000000000000 --- a/fs/9p/xattr_trusted.c +++ /dev/null @@ -1,82 +0,0 @@ -/* - * Copyright IBM Corporation, 2010 - * Author Aneesh Kumar K.V - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2.1 of the GNU Lesser General Public License - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * - */ - - -#include -#include -#include -#include -#include "xattr.h" - -static int v9fs_xattr_trusted_get(const struct xattr_handler *handler, - struct dentry *dentry, const char *name, - void *buffer, size_t size) -{ - int retval; - char *full_name; - size_t name_len; - size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN; - - if (name == NULL) - return -EINVAL; - - if (strcmp(name, "") == 0) - return -EINVAL; - - name_len = strlen(name); - full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL); - if (!full_name) - return -ENOMEM; - memcpy(full_name, XATTR_TRUSTED_PREFIX, prefix_len); - memcpy(full_name+prefix_len, name, name_len); - full_name[prefix_len + name_len] = '\0'; - - retval = v9fs_xattr_get(dentry, full_name, buffer, size); - kfree(full_name); - return retval; -} - -static int v9fs_xattr_trusted_set(const struct xattr_handler *handler, - struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) -{ - int retval; - char *full_name; - size_t name_len; - size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN; - - if (name == NULL) - return -EINVAL; - - if (strcmp(name, "") == 0) - return -EINVAL; - - name_len = strlen(name); - full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL); - if (!full_name) - return -ENOMEM; - memcpy(full_name, XATTR_TRUSTED_PREFIX, prefix_len); - memcpy(full_name + prefix_len, name, name_len); - full_name[prefix_len + name_len] = '\0'; - - retval = v9fs_xattr_set(dentry, full_name, value, size, flags); - kfree(full_name); - return retval; -} - -struct xattr_handler v9fs_xattr_trusted_handler = { - .prefix = XATTR_TRUSTED_PREFIX, - .get = v9fs_xattr_trusted_get, - .set = v9fs_xattr_trusted_set, -}; diff --git a/fs/9p/xattr_user.c b/fs/9p/xattr_user.c deleted file mode 100644 index 06f136cbe264..000000000000 --- a/fs/9p/xattr_user.c +++ /dev/null @@ -1,82 +0,0 @@ -/* - * Copyright IBM Corporation, 2010 - * Author Aneesh Kumar K.V - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of version 2.1 of the GNU Lesser General Public License - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - * - */ - - -#include -#include -#include -#include -#include "xattr.h" - -static int v9fs_xattr_user_get(const struct xattr_handler *handler, - struct dentry *dentry, const char *name, - void *buffer, size_t size) -{ - int retval; - char *full_name; - size_t name_len; - size_t prefix_len = XATTR_USER_PREFIX_LEN; - - if (name == NULL) - return -EINVAL; - - if (strcmp(name, "") == 0) - return -EINVAL; - - name_len = strlen(name); - full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL); - if (!full_name) - return -ENOMEM; - memcpy(full_name, XATTR_USER_PREFIX, prefix_len); - memcpy(full_name+prefix_len, name, name_len); - full_name[prefix_len + name_len] = '\0'; - - retval = v9fs_xattr_get(dentry, full_name, buffer, size); - kfree(full_name); - return retval; -} - -static int v9fs_xattr_user_set(const struct xattr_handler *handler, - struct dentry *dentry, const char *name, - const void *value, size_t size, int flags) -{ - int retval; - char *full_name; - size_t name_len; - size_t prefix_len = XATTR_USER_PREFIX_LEN; - - if (name == NULL) - return -EINVAL; - - if (strcmp(name, "") == 0) - return -EINVAL; - - name_len = strlen(name); - full_name = kmalloc(prefix_len + name_len + 1 , GFP_KERNEL); - if (!full_name) - return -ENOMEM; - memcpy(full_name, XATTR_USER_PREFIX, prefix_len); - memcpy(full_name + prefix_len, name, name_len); - full_name[prefix_len + name_len] = '\0'; - - retval = v9fs_xattr_set(dentry, full_name, value, size, flags); - kfree(full_name); - return retval; -} - -struct xattr_handler v9fs_xattr_user_handler = { - .prefix = XATTR_USER_PREFIX, - .get = v9fs_xattr_user_get, - .set = v9fs_xattr_user_set, -}; diff --git a/fs/xattr.c b/fs/xattr.c index 44377b6f6001..9b932b95d74e 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -790,6 +790,30 @@ EXPORT_SYMBOL(generic_listxattr); EXPORT_SYMBOL(generic_setxattr); EXPORT_SYMBOL(generic_removexattr); +/** + * xattr_full_name - Compute full attribute name from suffix + * + * @handler: handler of the xattr_handler operation + * @name: name passed to the xattr_handler operation + * + * The get and set xattr handler operations are called with the remainder of + * the attribute name after skipping the handler's prefix: for example, "foo" + * is passed to the get operation of a handler with prefix "user." to get + * attribute "user.foo". The full name is still "there" in the name though. + * + * Note: the list xattr handler operation when called from the vfs is passed a + * NULL name; some file systems use this operation internally, with varying + * semantics. + */ +const char *xattr_full_name(const struct xattr_handler *handler, + const char *name) +{ + size_t prefix_len = strlen(handler->prefix); + + return name - prefix_len; +} +EXPORT_SYMBOL(xattr_full_name); + /* * Allocate new xattr and copy in the value; but leave the name to callers. */ diff --git a/include/linux/xattr.h b/include/linux/xattr.h index 91b0a68d38dc..89474b9d260c 100644 --- a/include/linux/xattr.h +++ b/include/linux/xattr.h @@ -21,15 +21,19 @@ struct dentry; struct xattr_handler { const char *prefix; - int flags; /* fs private flags passed back to the handlers */ - size_t (*list)(struct dentry *dentry, char *list, size_t list_size, - const char *name, size_t name_len, int handler_flags); - int (*get)(struct dentry *dentry, const char *name, void *buffer, - size_t size, int handler_flags); - int (*set)(struct dentry *dentry, const char *name, const void *buffer, - size_t size, int flags, int handler_flags); + int flags; /* fs private flags */ + size_t (*list)(const struct xattr_handler *, struct dentry *dentry, + char *list, size_t list_size, const char *name, + size_t name_len); + int (*get)(const struct xattr_handler *, struct dentry *dentry, + const char *name, void *buffer, size_t size); + int (*set)(const struct xattr_handler *, struct dentry *dentry, + const char *name, const void *buffer, size_t size, + int flags); }; +const char *xattr_full_name(const struct xattr_handler *, const char *); + struct xattr { const char *name; void *value; -- cgit v1.2.3-71-gd317 From 02bcf4e082e4dc634409a6a6cb7def8806d6e5e6 Mon Sep 17 00:00:00 2001 From: Martin KaFai Lau Date: Wed, 11 Nov 2015 11:51:08 -0800 Subject: ipv6: Check rt->dst.from for the DST_NOCACHE route All DST_NOCACHE rt6_info used to have rt->dst.from set to its parent. After commit 8e3d5be73681 ("ipv6: Avoid double dst_free"), DST_NOCACHE is also set to rt6_info which does not have a parent (i.e. rt->dst.from is NULL). This patch catches the rt->dst.from == NULL case. Fixes: 8e3d5be73681 ("ipv6: Avoid double dst_free") Signed-off-by: Martin KaFai Lau Cc: Hannes Frederic Sowa Signed-off-by: David S. Miller --- include/net/ip6_fib.h | 3 ++- net/ipv6/route.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index aaf9700fc9e5..fb961a576abe 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -167,7 +167,8 @@ static inline void rt6_update_expires(struct rt6_info *rt0, int timeout) static inline u32 rt6_get_cookie(const struct rt6_info *rt) { - if (rt->rt6i_flags & RTF_PCPU || unlikely(rt->dst.flags & DST_NOCACHE)) + if (rt->rt6i_flags & RTF_PCPU || + (unlikely(rt->dst.flags & DST_NOCACHE) && rt->dst.from)) rt = (struct rt6_info *)(rt->dst.from); return rt->rt6i_node ? rt->rt6i_node->fn_sernum : 0; diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 3754cf9287a0..6f01fe122abd 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -1281,7 +1281,8 @@ static struct dst_entry *ip6_dst_check(struct dst_entry *dst, u32 cookie) rt6_dst_from_metrics_check(rt); - if ((rt->rt6i_flags & RTF_PCPU) || unlikely(dst->flags & DST_NOCACHE)) + if (rt->rt6i_flags & RTF_PCPU || + (unlikely(dst->flags & DST_NOCACHE) && rt->dst.from)) return rt6_dst_from_check(rt, cookie); else return rt6_check(rt, cookie); -- cgit v1.2.3-71-gd317 From 00fd38d938db3f1ab1c486549afc450cb7e751b1 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 12 Nov 2015 08:43:18 -0800 Subject: tcp: ensure proper barriers in lockless contexts Some functions access TCP sockets without holding a lock and might output non consistent data, depending on compiler and or architecture. tcp_diag_get_info(), tcp_get_info(), tcp_poll(), get_tcp4_sock() ... Introduce sk_state_load() and sk_state_store() to fix the issues, and more clearly document where this lack of locking is happening. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/sock.h | 25 +++++++++++++++++++++++++ net/ipv4/inet_connection_sock.c | 4 ++-- net/ipv4/tcp.c | 21 +++++++++++---------- net/ipv4/tcp_diag.c | 2 +- net/ipv4/tcp_ipv4.c | 14 ++++++++------ net/ipv6/tcp_ipv6.c | 19 +++++++++++++++---- 6 files changed, 62 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/include/net/sock.h b/include/net/sock.h index bbf7c2cf15b4..7f89e4ba18d1 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2226,6 +2226,31 @@ static inline bool sk_listener(const struct sock *sk) return (1 << sk->sk_state) & (TCPF_LISTEN | TCPF_NEW_SYN_RECV); } +/** + * sk_state_load - read sk->sk_state for lockless contexts + * @sk: socket pointer + * + * Paired with sk_state_store(). Used in places we do not hold socket lock : + * tcp_diag_get_info(), tcp_get_info(), tcp_poll(), get_tcp4_sock() ... + */ +static inline int sk_state_load(const struct sock *sk) +{ + return smp_load_acquire(&sk->sk_state); +} + +/** + * sk_state_store - update sk->sk_state + * @sk: socket pointer + * @newstate: new state + * + * Paired with sk_state_load(). Should be used in contexts where + * state change might impact lockless readers. + */ +static inline void sk_state_store(struct sock *sk, int newstate) +{ + smp_store_release(&sk->sk_state, newstate); +} + void sock_enable_timestamp(struct sock *sk, int flag); int sock_get_timestamp(struct sock *, struct timeval __user *); int sock_get_timestampns(struct sock *, struct timespec __user *); diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 1feb15f23de8..46b9c887bede 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -563,7 +563,7 @@ static void reqsk_timer_handler(unsigned long data) int max_retries, thresh; u8 defer_accept; - if (sk_listener->sk_state != TCP_LISTEN) + if (sk_state_load(sk_listener) != TCP_LISTEN) goto drop; max_retries = icsk->icsk_syn_retries ? : sysctl_tcp_synack_retries; @@ -749,7 +749,7 @@ int inet_csk_listen_start(struct sock *sk, int backlog) * It is OK, because this socket enters to hash table only * after validation is complete. */ - sk->sk_state = TCP_LISTEN; + sk_state_store(sk, TCP_LISTEN); if (!sk->sk_prot->get_port(sk, inet->inet_num)) { inet->inet_sport = htons(inet->inet_num); diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 0cfa7c0c1e80..c1728771cf89 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -451,11 +451,14 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) unsigned int mask; struct sock *sk = sock->sk; const struct tcp_sock *tp = tcp_sk(sk); + int state; sock_rps_record_flow(sk); sock_poll_wait(file, sk_sleep(sk), wait); - if (sk->sk_state == TCP_LISTEN) + + state = sk_state_load(sk); + if (state == TCP_LISTEN) return inet_csk_listen_poll(sk); /* Socket is not locked. We are protected from async events @@ -492,14 +495,14 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) * NOTE. Check for TCP_CLOSE is added. The goal is to prevent * blocking on fresh not-connected or disconnected socket. --ANK */ - if (sk->sk_shutdown == SHUTDOWN_MASK || sk->sk_state == TCP_CLOSE) + if (sk->sk_shutdown == SHUTDOWN_MASK || state == TCP_CLOSE) mask |= POLLHUP; if (sk->sk_shutdown & RCV_SHUTDOWN) mask |= POLLIN | POLLRDNORM | POLLRDHUP; /* Connected or passive Fast Open socket? */ - if (sk->sk_state != TCP_SYN_SENT && - (sk->sk_state != TCP_SYN_RECV || tp->fastopen_rsk)) { + if (state != TCP_SYN_SENT && + (state != TCP_SYN_RECV || tp->fastopen_rsk)) { int target = sock_rcvlowat(sk, 0, INT_MAX); if (tp->urg_seq == tp->copied_seq && @@ -507,9 +510,6 @@ unsigned int tcp_poll(struct file *file, struct socket *sock, poll_table *wait) tp->urg_data) target++; - /* Potential race condition. If read of tp below will - * escape above sk->sk_state, we can be illegally awaken - * in SYN_* states. */ if (tp->rcv_nxt - tp->copied_seq >= target) mask |= POLLIN | POLLRDNORM; @@ -1934,7 +1934,7 @@ void tcp_set_state(struct sock *sk, int state) /* Change state AFTER socket is unhashed to avoid closed * socket sitting in hash tables. */ - sk->sk_state = state; + sk_state_store(sk, state); #ifdef STATE_TRACE SOCK_DEBUG(sk, "TCP sk=%p, State %s -> %s\n", sk, statename[oldstate], statename[state]); @@ -2644,7 +2644,8 @@ void tcp_get_info(struct sock *sk, struct tcp_info *info) if (sk->sk_type != SOCK_STREAM) return; - info->tcpi_state = sk->sk_state; + info->tcpi_state = sk_state_load(sk); + info->tcpi_ca_state = icsk->icsk_ca_state; info->tcpi_retransmits = icsk->icsk_retransmits; info->tcpi_probes = icsk->icsk_probes_out; @@ -2672,7 +2673,7 @@ void tcp_get_info(struct sock *sk, struct tcp_info *info) info->tcpi_snd_mss = tp->mss_cache; info->tcpi_rcv_mss = icsk->icsk_ack.rcv_mss; - if (sk->sk_state == TCP_LISTEN) { + if (info->tcpi_state == TCP_LISTEN) { info->tcpi_unacked = sk->sk_ack_backlog; info->tcpi_sacked = sk->sk_max_ack_backlog; } else { diff --git a/net/ipv4/tcp_diag.c b/net/ipv4/tcp_diag.c index 479f34946177..b31604086edd 100644 --- a/net/ipv4/tcp_diag.c +++ b/net/ipv4/tcp_diag.c @@ -21,7 +21,7 @@ static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r, { struct tcp_info *info = _info; - if (sk->sk_state == TCP_LISTEN) { + if (sk_state_load(sk) == TCP_LISTEN) { r->idiag_rqueue = sk->sk_ack_backlog; r->idiag_wqueue = sk->sk_max_ack_backlog; } else if (sk->sk_type == SOCK_STREAM) { diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 950e28c0cdf2..ba09016d1bfd 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -2158,6 +2158,7 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i) __u16 destp = ntohs(inet->inet_dport); __u16 srcp = ntohs(inet->inet_sport); int rx_queue; + int state; if (icsk->icsk_pending == ICSK_TIME_RETRANS || icsk->icsk_pending == ICSK_TIME_EARLY_RETRANS || @@ -2175,17 +2176,18 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i) timer_expires = jiffies; } - if (sk->sk_state == TCP_LISTEN) + state = sk_state_load(sk); + if (state == TCP_LISTEN) rx_queue = sk->sk_ack_backlog; else - /* - * because we dont lock socket, we might find a transient negative value + /* Because we don't lock the socket, + * we might find a transient negative value. */ rx_queue = max_t(int, tp->rcv_nxt - tp->copied_seq, 0); seq_printf(f, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX " "%08X %5u %8d %lu %d %pK %lu %lu %u %u %d", - i, src, srcp, dest, destp, sk->sk_state, + i, src, srcp, dest, destp, state, tp->write_seq - tp->snd_una, rx_queue, timer_active, @@ -2199,8 +2201,8 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i) jiffies_to_clock_t(icsk->icsk_ack.ato), (icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong, tp->snd_cwnd, - sk->sk_state == TCP_LISTEN ? - (fastopenq ? fastopenq->max_qlen : 0) : + state == TCP_LISTEN ? + fastopenq->max_qlen : (tcp_in_initial_slowstart(tp) ? -1 : tp->snd_ssthresh)); } diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 5baa8e754e41..c5429a636f1a 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1690,6 +1690,8 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) const struct tcp_sock *tp = tcp_sk(sp); const struct inet_connection_sock *icsk = inet_csk(sp); const struct fastopen_queue *fastopenq = &icsk->icsk_accept_queue.fastopenq; + int rx_queue; + int state; dest = &sp->sk_v6_daddr; src = &sp->sk_v6_rcv_saddr; @@ -1710,6 +1712,15 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) timer_expires = jiffies; } + state = sk_state_load(sp); + if (state == TCP_LISTEN) + rx_queue = sp->sk_ack_backlog; + else + /* Because we don't lock the socket, + * we might find a transient negative value. + */ + rx_queue = max_t(int, tp->rcv_nxt - tp->copied_seq, 0); + seq_printf(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %lu %lu %u %u %d\n", @@ -1718,9 +1729,9 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) src->s6_addr32[2], src->s6_addr32[3], srcp, dest->s6_addr32[0], dest->s6_addr32[1], dest->s6_addr32[2], dest->s6_addr32[3], destp, - sp->sk_state, - tp->write_seq-tp->snd_una, - (sp->sk_state == TCP_LISTEN) ? sp->sk_ack_backlog : (tp->rcv_nxt - tp->copied_seq), + state, + tp->write_seq - tp->snd_una, + rx_queue, timer_active, jiffies_delta_to_clock_t(timer_expires - jiffies), icsk->icsk_retransmits, @@ -1732,7 +1743,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) jiffies_to_clock_t(icsk->icsk_ack.ato), (icsk->icsk_ack.quick << 1) | icsk->icsk_ack.pingpong, tp->snd_cwnd, - sp->sk_state == TCP_LISTEN ? + state == TCP_LISTEN ? fastopenq->max_qlen : (tcp_in_initial_slowstart(tp) ? -1 : tp->snd_ssthresh) ); -- cgit v1.2.3-71-gd317 From 66189961e986e53ae39822898fc2ce88f44c61bb Mon Sep 17 00:00:00 2001 From: Tariq Toukan Date: Thu, 12 Nov 2015 19:35:26 +0200 Subject: net/mlx5e: Added self loopback prevention Prevent outgoing multicast frames from looping back to the RX queue. By introducing new HW capability self_lb_en_modifiable, which indicates the support to modify self_lb_en bit in modify_tir command. When this capability is set we can prevent TIRs from sending back loopback multicast traffic to their own RQs, by "refreshing TIRs" with modify_tir command, on every time new channels (SQs/RQs) are created at device open. This is needed since TIRs are static and only allocated once on driver load, and the loopback decision is under their responsibility. Fixes issues of the kind: "IPv6: eth2: IPv6 duplicate address fe80::e61d:2dff:fe5c:f2e9 detected!" The issue is seen since the IPv6 solicitations multicast messages are loopedback and the network stack thinks they are coming from another host. Fixes: 5c50368f3831 ("net/mlx5e: Light-weight netdev open/stop") Signed-off-by: Tariq Toukan Signed-off-by: Saeed Mahameed Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 48 +++++++++++++++++++++++ include/linux/mlx5/mlx5_ifc.h | 24 +++++++----- 2 files changed, 62 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 5fc4d2d78cdf..df001754bcd1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -1332,6 +1332,42 @@ static int mlx5e_modify_tir_lro(struct mlx5e_priv *priv, int tt) return err; } +static int mlx5e_refresh_tir_self_loopback_enable(struct mlx5_core_dev *mdev, + u32 tirn) +{ + void *in; + int inlen; + int err; + + inlen = MLX5_ST_SZ_BYTES(modify_tir_in); + in = mlx5_vzalloc(inlen); + if (!in) + return -ENOMEM; + + MLX5_SET(modify_tir_in, in, bitmask.self_lb_en, 1); + + err = mlx5_core_modify_tir(mdev, tirn, in, inlen); + + kvfree(in); + + return err; +} + +static int mlx5e_refresh_tirs_self_loopback_enable(struct mlx5e_priv *priv) +{ + int err; + int i; + + for (i = 0; i < MLX5E_NUM_TT; i++) { + err = mlx5e_refresh_tir_self_loopback_enable(priv->mdev, + priv->tirn[i]); + if (err) + return err; + } + + return 0; +} + static int mlx5e_set_dev_port_mtu(struct net_device *netdev) { struct mlx5e_priv *priv = netdev_priv(netdev); @@ -1376,6 +1412,13 @@ int mlx5e_open_locked(struct net_device *netdev) goto err_clear_state_opened_flag; } + err = mlx5e_refresh_tirs_self_loopback_enable(priv); + if (err) { + netdev_err(netdev, "%s: mlx5e_refresh_tirs_self_loopback_enable failed, %d\n", + __func__, err); + goto err_close_channels; + } + mlx5e_update_carrier(priv); mlx5e_redirect_rqts(priv); @@ -1383,6 +1426,8 @@ int mlx5e_open_locked(struct net_device *netdev) return 0; +err_close_channels: + mlx5e_close_channels(priv); err_clear_state_opened_flag: clear_bit(MLX5E_STATE_OPENED, &priv->state); return err; @@ -1909,6 +1954,9 @@ static int mlx5e_check_required_hca_cap(struct mlx5_core_dev *mdev) "Not creating net device, some required device capabilities are missing\n"); return -ENOTSUPP; } + if (!MLX5_CAP_ETH(mdev, self_lb_en_modifiable)) + mlx5_core_warn(mdev, "Self loop back prevention is not supported\n"); + return 0; } diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h index dd2097455a2e..1565324eb620 100644 --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -453,26 +453,28 @@ struct mlx5_ifc_per_protocol_networking_offload_caps_bits { u8 lro_cap[0x1]; u8 lro_psh_flag[0x1]; u8 lro_time_stamp[0x1]; - u8 reserved_0[0x6]; + u8 reserved_0[0x3]; + u8 self_lb_en_modifiable[0x1]; + u8 reserved_1[0x2]; u8 max_lso_cap[0x5]; - u8 reserved_1[0x4]; + u8 reserved_2[0x4]; u8 rss_ind_tbl_cap[0x4]; - u8 reserved_2[0x3]; + u8 reserved_3[0x3]; u8 tunnel_lso_const_out_ip_id[0x1]; - u8 reserved_3[0x2]; + u8 reserved_4[0x2]; u8 tunnel_statless_gre[0x1]; u8 tunnel_stateless_vxlan[0x1]; - u8 reserved_4[0x20]; + u8 reserved_5[0x20]; - u8 reserved_5[0x10]; + u8 reserved_6[0x10]; u8 lro_min_mss_size[0x10]; - u8 reserved_6[0x120]; + u8 reserved_7[0x120]; u8 lro_timer_supported_periods[4][0x20]; - u8 reserved_7[0x600]; + u8 reserved_8[0x600]; }; struct mlx5_ifc_roce_cap_bits { @@ -4051,9 +4053,11 @@ struct mlx5_ifc_modify_tis_in_bits { }; struct mlx5_ifc_modify_tir_bitmask_bits { - u8 reserved[0x20]; + u8 reserved_0[0x20]; - u8 reserved1[0x1f]; + u8 reserved_1[0x1b]; + u8 self_lb_en[0x1]; + u8 reserved_2[0x3]; u8 lro[0x1]; }; -- cgit v1.2.3-71-gd317 From b4fe85f9c9146f60457e9512fb6055e69e6a7a65 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Thu, 12 Nov 2015 17:35:58 +0100 Subject: ip_tunnel: disable preemption when updating per-cpu tstats Drivers like vxlan use the recently introduced udp_tunnel_xmit_skb/udp_tunnel6_xmit_skb APIs. udp_tunnel6_xmit_skb makes use of ip6tunnel_xmit, and ip6tunnel_xmit, after sending the packet, updates the struct stats using the usual u64_stats_update_begin/end calls on this_cpu_ptr(dev->tstats). udp_tunnel_xmit_skb makes use of iptunnel_xmit, which doesn't touch tstats, so drivers like vxlan, immediately after, call iptunnel_xmit_stats, which does the same thing - calls u64_stats_update_begin/end on this_cpu_ptr(dev->tstats). While vxlan is probably fine (I don't know?), calling a similar function from, say, an unbound workqueue, on a fully preemptable kernel causes real issues: [ 188.434537] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u8:0/6 [ 188.435579] caller is debug_smp_processor_id+0x17/0x20 [ 188.435583] CPU: 0 PID: 6 Comm: kworker/u8:0 Not tainted 4.2.6 #2 [ 188.435607] Call Trace: [ 188.435611] [] dump_stack+0x4f/0x7b [ 188.435615] [] check_preemption_disabled+0x19d/0x1c0 [ 188.435619] [] debug_smp_processor_id+0x17/0x20 The solution would be to protect the whole this_cpu_ptr(dev->tstats)/u64_stats_update_begin/end blocks with disabling preemption and then reenabling it. Signed-off-by: Jason A. Donenfeld Acked-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- include/net/ip6_tunnel.h | 3 ++- include/net/ip_tunnels.h | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h index aaee6fa02cf1..ff788b665277 100644 --- a/include/net/ip6_tunnel.h +++ b/include/net/ip6_tunnel.h @@ -90,11 +90,12 @@ static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb, err = ip6_local_out(dev_net(skb_dst(skb)->dev), sk, skb); if (net_xmit_eval(err) == 0) { - struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats); + struct pcpu_sw_netstats *tstats = get_cpu_ptr(dev->tstats); u64_stats_update_begin(&tstats->syncp); tstats->tx_bytes += pkt_len; tstats->tx_packets++; u64_stats_update_end(&tstats->syncp); + put_cpu_ptr(tstats); } else { stats->tx_errors++; stats->tx_aborted_errors++; diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h index f6dafec9102c..62a750a6a8f8 100644 --- a/include/net/ip_tunnels.h +++ b/include/net/ip_tunnels.h @@ -287,12 +287,13 @@ static inline void iptunnel_xmit_stats(int err, struct pcpu_sw_netstats __percpu *stats) { if (err > 0) { - struct pcpu_sw_netstats *tstats = this_cpu_ptr(stats); + struct pcpu_sw_netstats *tstats = get_cpu_ptr(stats); u64_stats_update_begin(&tstats->syncp); tstats->tx_bytes += err; tstats->tx_packets++; u64_stats_update_end(&tstats->syncp); + put_cpu_ptr(tstats); } else if (err < 0) { err_stats->tx_errors++; err_stats->tx_aborted_errors++; -- cgit v1.2.3-71-gd317 From 24cb7055a3066634a0f3fa0cd6a4780652905d35 Mon Sep 17 00:00:00 2001 From: Dragos Tatulea Date: Mon, 16 Nov 2015 10:52:48 +0100 Subject: net: switchdev: fix return code of fdb_dump stub rtnl_fdb_dump always expects an index to be returned by the ndo_fdb_dump op, but when CONFIG_NET_SWITCHDEV is off, it returns an error. Fix that by returning the given unmodified idx. A similar fix was 0890cf6cb6ab ("switchdev: fix return value of switchdev_port_fdb_dump in case of error") but for the CONFIG_NET_SWITCHDEV=y case. Fixes: 45d4122ca7cd ("switchdev: add support for fdb add/del/dump via switchdev_port_obj ops.") Signed-off-by: Dragos Tatulea Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- include/net/switchdev.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/switchdev.h b/include/net/switchdev.h index bc865e244efe..1d22ce9f352e 100644 --- a/include/net/switchdev.h +++ b/include/net/switchdev.h @@ -323,7 +323,7 @@ static inline int switchdev_port_fdb_dump(struct sk_buff *skb, struct net_device *filter_dev, int idx) { - return -EOPNOTSUPP; + return idx; } static inline void switchdev_port_fwd_mark_set(struct net_device *dev, -- cgit v1.2.3-71-gd317 From 28f9ee22bcdd84726dbf6267d0b58f254166b900 Mon Sep 17 00:00:00 2001 From: Vlad Yasevich Date: Mon, 16 Nov 2015 15:43:45 -0500 Subject: vlan: Do not put vlan headers back on bridge and macvlan ports When a vlan is configured with REORDER_HEADER set to 0, the vlan header is put back into the packet and makes it appear that the vlan header is still there even after it's been processed. This posses a problem for bridge and macvlan ports. The packets passed to those device may be forwarded and at the time of the forward, vlan headers end up being unexpectedly present. With the patch, we make sure that we do not put the vlan header back (when REORDER_HEADER is 0) if a bridge or macvlan has been configured on top of the vlan device. Signed-off-by: Vladislav Yasevich Signed-off-by: David S. Miller --- include/linux/netdevice.h | 5 +++++ net/8021q/vlan_core.c | 4 +++- 2 files changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index cc221b967687..67bfac1abfc1 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3857,6 +3857,11 @@ static inline bool netif_is_bridge_master(const struct net_device *dev) return dev->priv_flags & IFF_EBRIDGE; } +static inline bool netif_is_bridge_port(const struct net_device *dev) +{ + return dev->priv_flags & IFF_BRIDGE_PORT; +} + static inline bool netif_is_ovs_master(const struct net_device *dev) { return dev->priv_flags & IFF_OPENVSWITCH; diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 496b27588493..e2ed69850489 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -30,7 +30,9 @@ bool vlan_do_receive(struct sk_buff **skbp) skb->pkt_type = PACKET_HOST; } - if (!(vlan_dev_priv(vlan_dev)->flags & VLAN_FLAG_REORDER_HDR)) { + if (!(vlan_dev_priv(vlan_dev)->flags & VLAN_FLAG_REORDER_HDR) && + !netif_is_macvlan_port(vlan_dev) && + !netif_is_bridge_port(vlan_dev)) { unsigned int offset = skb->data - skb_mac_header(skb); /* -- cgit v1.2.3-71-gd317 From 819ec8e1f349f73bdf65bf33a364538e59007a9a Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Mon, 16 Nov 2015 23:34:41 +0100 Subject: phy: marvell: Add support for 88E1540 PHY The 88E1540 can be found embedded in the Marvell 88E6352 switch. It is compatible with the 88E1510, so add support for it, using the 88E1510 specific functions. Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/phy/marvell.c | 16 ++++++++++++++++ include/linux/marvell_phy.h | 1 + 2 files changed, 17 insertions(+) (limited to 'include') diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index 5de8d5827536..0240552b50f3 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -1153,6 +1153,21 @@ static struct phy_driver marvell_drivers[] = { .suspend = &genphy_suspend, .driver = { .owner = THIS_MODULE }, }, + { + .phy_id = MARVELL_PHY_ID_88E1540, + .phy_id_mask = MARVELL_PHY_ID_MASK, + .name = "Marvell 88E1540", + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_aneg = &m88e1510_config_aneg, + .read_status = &marvell_read_status, + .ack_interrupt = &marvell_ack_interrupt, + .config_intr = &marvell_config_intr, + .did_interrupt = &m88e1121_did_interrupt, + .resume = &genphy_resume, + .suspend = &genphy_suspend, + .driver = { .owner = THIS_MODULE }, + }, { .phy_id = MARVELL_PHY_ID_88E3016, .phy_id_mask = MARVELL_PHY_ID_MASK, @@ -1186,6 +1201,7 @@ static struct mdio_device_id __maybe_unused marvell_tbl[] = { { MARVELL_PHY_ID_88E1318S, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E1116R, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E1510, MARVELL_PHY_ID_MASK }, + { MARVELL_PHY_ID_88E1540, MARVELL_PHY_ID_MASK }, { MARVELL_PHY_ID_88E3016, MARVELL_PHY_ID_MASK }, { } }; diff --git a/include/linux/marvell_phy.h b/include/linux/marvell_phy.h index e6982ac3200d..a57f0dfb6db7 100644 --- a/include/linux/marvell_phy.h +++ b/include/linux/marvell_phy.h @@ -16,6 +16,7 @@ #define MARVELL_PHY_ID_88E1318S 0x01410e90 #define MARVELL_PHY_ID_88E1116R 0x01410e40 #define MARVELL_PHY_ID_88E1510 0x01410dd0 +#define MARVELL_PHY_ID_88E1540 0x01410eb0 #define MARVELL_PHY_ID_88E3016 0x01410e60 /* struct phy_device dev_flags definitions */ -- cgit v1.2.3-71-gd317 From 52bd2d62ce6758d811edcbd2256eb9ea7f6a56cb Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 18 Nov 2015 06:30:50 -0800 Subject: net: better skb->sender_cpu and skb->napi_id cohabitation skb->sender_cpu and skb->napi_id share a common storage, and we had various bugs about this. We had to call skb_sender_cpu_clear() in some places to not leave a prior skb->napi_id and fool netdev_pick_tx() As suggested by Alexei, we could split the space so that these errors can not happen. 0 value being reserved as the common (not initialized) value, let's reserve [1 .. NR_CPUS] range for valid sender_cpu, and [NR_CPUS+1 .. ~0U] for valid napi_id. This will allow proper busy polling support over tunnels. Signed-off-by: Eric Dumazet Suggested-by: Alexei Starovoitov Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller --- include/linux/skbuff.h | 3 --- net/core/dev.c | 33 ++++++++++++++++----------------- 2 files changed, 16 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 4355129fff91..c9c394bf0771 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1082,9 +1082,6 @@ static inline void skb_copy_hash(struct sk_buff *to, const struct sk_buff *from) static inline void skb_sender_cpu_clear(struct sk_buff *skb) { -#ifdef CONFIG_XPS - skb->sender_cpu = 0; -#endif } #ifdef NET_SKBUFF_DATA_USES_OFFSET diff --git a/net/core/dev.c b/net/core/dev.c index ae00b894e675..2582c24a75c6 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -182,7 +182,7 @@ EXPORT_SYMBOL(dev_base_lock); /* protects napi_hash addition/deletion and napi_gen_id */ static DEFINE_SPINLOCK(napi_hash_lock); -static unsigned int napi_gen_id; +static unsigned int napi_gen_id = NR_CPUS; static DEFINE_HASHTABLE(napi_hash, 8); static seqcount_t devnet_rename_seq; @@ -3021,7 +3021,9 @@ struct netdev_queue *netdev_pick_tx(struct net_device *dev, int queue_index = 0; #ifdef CONFIG_XPS - if (skb->sender_cpu == 0) + u32 sender_cpu = skb->sender_cpu - 1; + + if (sender_cpu >= (u32)NR_CPUS) skb->sender_cpu = raw_smp_processor_id() + 1; #endif @@ -4676,25 +4678,22 @@ EXPORT_SYMBOL_GPL(napi_by_id); void napi_hash_add(struct napi_struct *napi) { - if (!test_and_set_bit(NAPI_STATE_HASHED, &napi->state)) { + if (test_and_set_bit(NAPI_STATE_HASHED, &napi->state)) + return; - spin_lock(&napi_hash_lock); + spin_lock(&napi_hash_lock); - /* 0 is not a valid id, we also skip an id that is taken - * we expect both events to be extremely rare - */ - napi->napi_id = 0; - while (!napi->napi_id) { - napi->napi_id = ++napi_gen_id; - if (napi_by_id(napi->napi_id)) - napi->napi_id = 0; - } + /* 0..NR_CPUS+1 range is reserved for sender_cpu use */ + do { + if (unlikely(++napi_gen_id < NR_CPUS + 1)) + napi_gen_id = NR_CPUS + 1; + } while (napi_by_id(napi_gen_id)); + napi->napi_id = napi_gen_id; - hlist_add_head_rcu(&napi->napi_hash_node, - &napi_hash[napi->napi_id % HASH_SIZE(napi_hash)]); + hlist_add_head_rcu(&napi->napi_hash_node, + &napi_hash[napi->napi_id % HASH_SIZE(napi_hash)]); - spin_unlock(&napi_hash_lock); - } + spin_unlock(&napi_hash_lock); } EXPORT_SYMBOL_GPL(napi_hash_add); -- cgit v1.2.3-71-gd317 From 02d62e86fe892c59a1259d089d4d16ac76977a37 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 18 Nov 2015 06:30:52 -0800 Subject: net: un-inline sk_busy_loop() There is really little gain from inlining this big function. We'll soon make it even bigger in following patches. This means we no longer need to export napi_by_id() Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 9 --------- include/net/busy_poll.h | 45 +----------------------------------------- net/core/dev.c | 50 +++++++++++++++++++++++++++++++++++++++++++++-- 3 files changed, 49 insertions(+), 55 deletions(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 67bfac1abfc1..2020a89df12b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -460,15 +460,6 @@ static inline void napi_complete(struct napi_struct *n) return napi_complete_done(n, 0); } -/** - * napi_by_id - lookup a NAPI by napi_id - * @napi_id: hashed napi_id - * - * lookup @napi_id in napi_hash table - * must be called under rcu_read_lock() - */ -struct napi_struct *napi_by_id(unsigned int napi_id); - /** * napi_hash_add - add a NAPI to global hashtable * @napi: napi context diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h index 1d67fb6b23a0..2fbeb1313c0f 100644 --- a/include/net/busy_poll.h +++ b/include/net/busy_poll.h @@ -72,50 +72,7 @@ static inline bool busy_loop_timeout(unsigned long end_time) return time_after(now, end_time); } -/* when used in sock_poll() nonblock is known at compile time to be true - * so the loop and end_time will be optimized out - */ -static inline bool sk_busy_loop(struct sock *sk, int nonblock) -{ - unsigned long end_time = !nonblock ? sk_busy_loop_end_time(sk) : 0; - const struct net_device_ops *ops; - struct napi_struct *napi; - int rc = false; - - /* - * rcu read lock for napi hash - * bh so we don't race with net_rx_action - */ - rcu_read_lock_bh(); - - napi = napi_by_id(sk->sk_napi_id); - if (!napi) - goto out; - - ops = napi->dev->netdev_ops; - if (!ops->ndo_busy_poll) - goto out; - - do { - rc = ops->ndo_busy_poll(napi); - - if (rc == LL_FLUSH_FAILED) - break; /* permanent failure */ - - if (rc > 0) - /* local bh are disabled so it is ok to use _BH */ - NET_ADD_STATS_BH(sock_net(sk), - LINUX_MIB_BUSYPOLLRXPACKETS, rc); - cpu_relax(); - - } while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) && - !need_resched() && !busy_loop_timeout(end_time)); - - rc = !skb_queue_empty(&sk->sk_receive_queue); -out: - rcu_read_unlock_bh(); - return rc; -} +bool sk_busy_loop(struct sock *sk, int nonblock); /* used in the NIC receive handler to mark the skb */ static inline void skb_mark_napi_id(struct sk_buff *skb, diff --git a/net/core/dev.c b/net/core/dev.c index 2582c24a75c6..74a816b299df 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -96,6 +96,7 @@ #include #include #include +#include #include #include #include @@ -4663,7 +4664,7 @@ void napi_complete_done(struct napi_struct *n, int work_done) EXPORT_SYMBOL(napi_complete_done); /* must be called under rcu_read_lock(), as we dont take a reference */ -struct napi_struct *napi_by_id(unsigned int napi_id) +static struct napi_struct *napi_by_id(unsigned int napi_id) { unsigned int hash = napi_id % HASH_SIZE(napi_hash); struct napi_struct *napi; @@ -4674,7 +4675,52 @@ struct napi_struct *napi_by_id(unsigned int napi_id) return NULL; } -EXPORT_SYMBOL_GPL(napi_by_id); + +#if defined(CONFIG_NET_RX_BUSY_POLL) +bool sk_busy_loop(struct sock *sk, int nonblock) +{ + unsigned long end_time = !nonblock ? sk_busy_loop_end_time(sk) : 0; + const struct net_device_ops *ops; + struct napi_struct *napi; + int rc = false; + + /* + * rcu read lock for napi hash + * bh so we don't race with net_rx_action + */ + rcu_read_lock_bh(); + + napi = napi_by_id(sk->sk_napi_id); + if (!napi) + goto out; + + ops = napi->dev->netdev_ops; + if (!ops->ndo_busy_poll) + goto out; + + do { + rc = ops->ndo_busy_poll(napi); + + if (rc == LL_FLUSH_FAILED) + break; /* permanent failure */ + + if (rc > 0) + /* local bh are disabled so it is ok to use _BH */ + NET_ADD_STATS_BH(sock_net(sk), + LINUX_MIB_BUSYPOLLRXPACKETS, rc); + cpu_relax(); + + } while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) && + !need_resched() && !busy_loop_timeout(end_time)); + + rc = !skb_queue_empty(&sk->sk_receive_queue); +out: + rcu_read_unlock_bh(); + return rc; +} +EXPORT_SYMBOL(sk_busy_loop); + +#endif /* CONFIG_NET_RX_BUSY_POLL */ void napi_hash_add(struct napi_struct *napi) { -- cgit v1.2.3-71-gd317 From d64b5e85bfe2fe4c790abcbd16d9ae32391ddd7e Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 18 Nov 2015 06:31:00 -0800 Subject: net: add netif_tx_napi_add() netif_tx_napi_add() is a variant of netif_napi_add() It should be used by drivers that use a napi structure to exclusively poll TX. We do not want to add this kind of napi in napi_hash[] in following patches, adding generic busy polling to all NAPI drivers. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bcmsysport.c | 2 +- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 4 ++-- .../net/ethernet/freescale/fs_enet/fs_enet-main.c | 2 +- drivers/net/ethernet/freescale/gianfar.c | 4 ++-- drivers/net/ethernet/mellanox/mlx4/en_cq.c | 4 ++-- drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c | 4 ++-- drivers/net/ethernet/rocker/rocker.c | 2 +- drivers/net/ethernet/ti/cpsw.c | 2 +- drivers/net/ethernet/ti/netcp_core.c | 2 +- drivers/net/wireless/ath/wil6210/netdev.c | 2 +- include/linux/netdevice.h | 23 +++++++++++++++++++++- net/core/dev.c | 3 ++- 12 files changed, 38 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index 858106352ce9..993c780bdfab 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -1216,7 +1216,7 @@ static int bcm_sysport_init_tx_ring(struct bcm_sysport_priv *priv, /* Initialize SW view of the ring */ spin_lock_init(&ring->lock); ring->priv = priv; - netif_napi_add(priv->netdev, &ring->napi, bcm_sysport_tx_poll, 64); + netif_tx_napi_add(priv->netdev, &ring->napi, bcm_sysport_tx_poll, 64); ring->index = index; ring->size = size; ring->alloc_size = ring->size; diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 17f017ab4dac..b15a60d787c7 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -2041,11 +2041,11 @@ static void bcmgenet_init_tx_napi(struct bcmgenet_priv *priv) for (i = 0; i < priv->hw_params->tx_queues; ++i) { ring = &priv->tx_rings[i]; - netif_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll, 64); + netif_tx_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll, 64); } ring = &priv->tx_rings[DESC_INDEX]; - netif_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll, 64); + netif_tx_napi_add(priv->dev, &ring->napi, bcmgenet_tx_poll, 64); } static void bcmgenet_enable_tx_napi(struct bcmgenet_priv *priv) diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c index cf8e54652df9..48a9c176e0d1 100644 --- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c +++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c @@ -1050,7 +1050,7 @@ static int fs_enet_probe(struct platform_device *ofdev) ndev->netdev_ops = &fs_enet_netdev_ops; ndev->watchdog_timeo = 2 * HZ; netif_napi_add(ndev, &fep->napi, fs_enet_rx_napi, fpi->napi_weight); - netif_napi_add(ndev, &fep->napi_tx, fs_enet_tx_napi, 2); + netif_tx_napi_add(ndev, &fep->napi_tx, fs_enet_tx_napi, 2); ndev->ethtool_ops = &fs_ethtool_ops; diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 3e6b9b437497..c8bc43e99a35 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -1347,12 +1347,12 @@ static int gfar_probe(struct platform_device *ofdev) if (priv->poll_mode == GFAR_SQ_POLLING) { netif_napi_add(dev, &priv->gfargrp[i].napi_rx, gfar_poll_rx_sq, GFAR_DEV_WEIGHT); - netif_napi_add(dev, &priv->gfargrp[i].napi_tx, + netif_tx_napi_add(dev, &priv->gfargrp[i].napi_tx, gfar_poll_tx_sq, 2); } else { netif_napi_add(dev, &priv->gfargrp[i].napi_rx, gfar_poll_rx, GFAR_DEV_WEIGHT); - netif_napi_add(dev, &priv->gfargrp[i].napi_tx, + netif_tx_napi_add(dev, &priv->gfargrp[i].napi_tx, gfar_poll_tx, 2); } } diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c index eb8a4988de63..3a6176fea78d 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c @@ -156,8 +156,8 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, cq->mcq.event = mlx4_en_cq_event; if (cq->is_tx) { - netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_tx_cq, - NAPI_POLL_WEIGHT); + netif_tx_napi_add(cq->dev, &cq->napi, mlx4_en_poll_tx_cq, + NAPI_POLL_WEIGHT); } else { netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_rx_cq, 64); napi_hash_add(&cq->napi); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c index d4b5085a21fa..7bd6f25b4625 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c @@ -1604,7 +1604,7 @@ int qlcnic_82xx_napi_add(struct qlcnic_adapter *adapter, if (qlcnic_check_multi_tx(adapter) && !adapter->ahw->diag_test) { for (ring = 0; ring < adapter->drv_tx_rings; ring++) { tx_ring = &adapter->tx_ring[ring]; - netif_napi_add(netdev, &tx_ring->napi, qlcnic_tx_poll, + netif_tx_napi_add(netdev, &tx_ring->napi, qlcnic_tx_poll, NAPI_POLL_WEIGHT); } } @@ -2135,7 +2135,7 @@ int qlcnic_83xx_napi_add(struct qlcnic_adapter *adapter, !(adapter->flags & QLCNIC_TX_INTR_SHARED)) { for (ring = 0; ring < adapter->drv_tx_rings; ring++) { tx_ring = &adapter->tx_ring[ring]; - netif_napi_add(netdev, &tx_ring->napi, + netif_tx_napi_add(netdev, &tx_ring->napi, qlcnic_83xx_msix_tx_poll, NAPI_POLL_WEIGHT); } diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c index e9f2349e98bc..a4ab71d43e4e 100644 --- a/drivers/net/ethernet/rocker/rocker.c +++ b/drivers/net/ethernet/rocker/rocker.c @@ -4998,7 +4998,7 @@ static int rocker_probe_port(struct rocker *rocker, unsigned int port_number) dev->netdev_ops = &rocker_port_netdev_ops; dev->ethtool_ops = &rocker_port_ethtool_ops; dev->switchdev_ops = &rocker_port_switchdev_ops; - netif_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx, + netif_tx_napi_add(dev, &rocker_port->napi_tx, rocker_port_poll_tx, NAPI_POLL_WEIGHT); netif_napi_add(dev, &rocker_port->napi_rx, rocker_port_poll_rx, NAPI_POLL_WEIGHT); diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 48b92c9de12a..15322c08de80 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -2469,7 +2469,7 @@ static int cpsw_probe(struct platform_device *pdev) ndev->netdev_ops = &cpsw_netdev_ops; ndev->ethtool_ops = &cpsw_ethtool_ops; netif_napi_add(ndev, &priv->napi_rx, cpsw_rx_poll, CPSW_POLL_WEIGHT); - netif_napi_add(ndev, &priv->napi_tx, cpsw_tx_poll, CPSW_POLL_WEIGHT); + netif_tx_napi_add(ndev, &priv->napi_tx, cpsw_tx_poll, CPSW_POLL_WEIGHT); /* register the network device */ SET_NETDEV_DEV(ndev, &pdev->dev); diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c index 37b9b39192ec..e5e20e734f21 100644 --- a/drivers/net/ethernet/ti/netcp_core.c +++ b/drivers/net/ethernet/ti/netcp_core.c @@ -1990,7 +1990,7 @@ static int netcp_create_interface(struct netcp_device *netcp_device, /* NAPI register */ netif_napi_add(ndev, &netcp->rx_napi, netcp_rx_poll, NETCP_NAPI_WEIGHT); - netif_napi_add(ndev, &netcp->tx_napi, netcp_tx_poll, NETCP_NAPI_WEIGHT); + netif_tx_napi_add(ndev, &netcp->tx_napi, netcp_tx_poll, NETCP_NAPI_WEIGHT); /* Register the network device */ ndev->dev_id = 0; diff --git a/drivers/net/wireless/ath/wil6210/netdev.c b/drivers/net/wireless/ath/wil6210/netdev.c index e3b3c8fb4605..56aaa2d4fb0e 100644 --- a/drivers/net/wireless/ath/wil6210/netdev.c +++ b/drivers/net/wireless/ath/wil6210/netdev.c @@ -183,7 +183,7 @@ void *wil_if_alloc(struct device *dev) netif_napi_add(ndev, &wil->napi_rx, wil6210_netdev_poll_rx, WIL6210_NAPI_BUDGET); - netif_napi_add(ndev, &wil->napi_tx, wil6210_netdev_poll_tx, + netif_tx_napi_add(ndev, &wil->napi_tx, wil6210_netdev_poll_tx, WIL6210_NAPI_BUDGET); netif_tx_stop_all_queues(ndev); diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 2020a89df12b..838935d1cdbb 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -326,7 +326,8 @@ enum { NAPI_STATE_SCHED, /* Poll is scheduled */ NAPI_STATE_DISABLE, /* Disable pending */ NAPI_STATE_NPSVC, /* Netpoll - don't dequeue from poll_list */ - NAPI_STATE_HASHED, /* In NAPI hash */ + NAPI_STATE_HASHED, /* In NAPI hash (busy polling possible) */ + NAPI_STATE_NO_BUSY_POLL,/* Do not add in napi_hash, no busy polling */ }; enum gro_result { @@ -1938,6 +1939,26 @@ static inline void *netdev_priv(const struct net_device *dev) void netif_napi_add(struct net_device *dev, struct napi_struct *napi, int (*poll)(struct napi_struct *, int), int weight); +/** + * netif_tx_napi_add - initialize a napi context + * @dev: network device + * @napi: napi context + * @poll: polling function + * @weight: default weight + * + * This variant of netif_napi_add() should be used from drivers using NAPI + * to exclusively poll a TX queue. + * This will avoid we add it into napi_hash[], thus polluting this hash table. + */ +static inline void netif_tx_napi_add(struct net_device *dev, + struct napi_struct *napi, + int (*poll)(struct napi_struct *, int), + int weight) +{ + set_bit(NAPI_STATE_NO_BUSY_POLL, &napi->state); + netif_napi_add(dev, napi, poll, weight); +} + /** * netif_napi_del - remove a napi context * @napi: napi context diff --git a/net/core/dev.c b/net/core/dev.c index 83b48747928c..ff58a8bc5e3c 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4737,7 +4737,8 @@ EXPORT_SYMBOL(sk_busy_loop); void napi_hash_add(struct napi_struct *napi) { - if (test_and_set_bit(NAPI_STATE_HASHED, &napi->state)) + if (test_bit(NAPI_STATE_NO_BUSY_POLL, &napi->state) || + test_and_set_bit(NAPI_STATE_HASHED, &napi->state)) return; spin_lock(&napi_hash_lock); -- cgit v1.2.3-71-gd317 From 6180d9de61a5c461f9e3efef5417a844701dbbb2 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 18 Nov 2015 06:31:01 -0800 Subject: net: move napi_hash[] into read mostly section We do not often add/delete a napi context. Moving napi_hash[] into read mostly section avoids potential false sharing. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/hashtable.h | 4 ++++ net/core/dev.c | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/hashtable.h b/include/linux/hashtable.h index 519b6e2d769e..661e5c2a8e2a 100644 --- a/include/linux/hashtable.h +++ b/include/linux/hashtable.h @@ -16,6 +16,10 @@ struct hlist_head name[1 << (bits)] = \ { [0 ... ((1 << (bits)) - 1)] = HLIST_HEAD_INIT } +#define DEFINE_READ_MOSTLY_HASHTABLE(name, bits) \ + struct hlist_head name[1 << (bits)] __read_mostly = \ + { [0 ... ((1 << (bits)) - 1)] = HLIST_HEAD_INIT } + #define DECLARE_HASHTABLE(name, bits) \ struct hlist_head name[1 << (bits)] diff --git a/net/core/dev.c b/net/core/dev.c index ff58a8bc5e3c..02dfbd91a8e4 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -184,7 +184,7 @@ EXPORT_SYMBOL(dev_base_lock); static DEFINE_SPINLOCK(napi_hash_lock); static unsigned int napi_gen_id = NR_CPUS; -static DEFINE_HASHTABLE(napi_hash, 8); +static DEFINE_READ_MOSTLY_HASHTABLE(napi_hash, 8); static seqcount_t devnet_rename_seq; -- cgit v1.2.3-71-gd317 From 34cbe27e811c591c854a39c0dee1b461bb796953 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 18 Nov 2015 06:31:02 -0800 Subject: net: napi_hash_del() returns a boolean status napi_hash_del() will soon be used from both drivers (if they want) or core networking stack. Callers are responsibles to ensure an RCU grace period is respected before freeing napi structure : napi_hash_del() can signal if this RCU grace period is needed or not. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/netdevice.h | 5 +++-- net/core/dev.c | 10 +++++++--- 2 files changed, 10 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 838935d1cdbb..e5c33b29471b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -474,9 +474,10 @@ void napi_hash_add(struct napi_struct *napi); * @napi: napi context * * Warning: caller must observe rcu grace period - * before freeing memory containing @napi + * before freeing memory containing @napi, if + * this function returns true. */ -void napi_hash_del(struct napi_struct *napi); +bool napi_hash_del(struct napi_struct *napi); /** * napi_disable - prevent NAPI from scheduling diff --git a/net/core/dev.c b/net/core/dev.c index 02dfbd91a8e4..59dddac1c2e7 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4760,14 +4760,18 @@ EXPORT_SYMBOL_GPL(napi_hash_add); /* Warning : caller is responsible to make sure rcu grace period * is respected before freeing memory containing @napi */ -void napi_hash_del(struct napi_struct *napi) +bool napi_hash_del(struct napi_struct *napi) { + bool rcu_sync_needed = false; + spin_lock(&napi_hash_lock); - if (test_and_clear_bit(NAPI_STATE_HASHED, &napi->state)) + if (test_and_clear_bit(NAPI_STATE_HASHED, &napi->state)) { + rcu_sync_needed = true; hlist_del_rcu(&napi->napi_hash_node); - + } spin_unlock(&napi_hash_lock); + return rcu_sync_needed; } EXPORT_SYMBOL_GPL(napi_hash_del); -- cgit v1.2.3-71-gd317 From 93d05d4a320cb16712bb3d57a9658f395d8cecb9 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 18 Nov 2015 06:31:03 -0800 Subject: net: provide generic busy polling to all NAPI drivers NAPI drivers no longer need to observe a particular protocol to benefit from busy polling (CONFIG_NET_RX_BUSY_POLL=y) napi_hash_add() and napi_hash_del() are automatically called from core networking stack, respectively from netif_napi_add() and netif_napi_del() This patch depends on free_netdev() and netif_napi_del() being called from process context, which seems to be the norm. Drivers might still prefer to call napi_hash_del() on their own, since they might combine all the rcu grace periods into a single one, knowing their NAPI structures lifetime, while core networking stack has no idea of a possible combining. Once this patch proves to not bring serious regressions, we will cleanup drivers to either remove napi_hash_del() or provide appropriate rcu grace periods combining. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 2 -- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 -- drivers/net/ethernet/chelsio/cxgb4/sge.c | 1 - drivers/net/ethernet/cisco/enic/enic_main.c | 2 -- drivers/net/ethernet/emulex/benet/be_main.c | 1 - drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c | 1 - drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 3 --- drivers/net/ethernet/mellanox/mlx4/en_cq.c | 6 ++---- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 1 - drivers/net/ethernet/myricom/myri10ge/myri10ge.c | 1 - drivers/net/ethernet/sfc/efx.c | 1 - drivers/net/virtio_net.c | 1 - include/linux/netdevice.h | 7 +++++++ net/core/dev.c | 7 +++++++ 14 files changed, 16 insertions(+), 20 deletions(-) (limited to 'include') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index ab9222924bd9..d9add7c02e42 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -46,7 +46,6 @@ static void bnx2x_add_all_napi_cnic(struct bnx2x *bp) for_each_rx_queue_cnic(bp, i) { netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi), bnx2x_poll, NAPI_POLL_WEIGHT); - napi_hash_add(&bnx2x_fp(bp, i, napi)); } } @@ -58,7 +57,6 @@ static void bnx2x_add_all_napi(struct bnx2x *bp) for_each_eth_queue(bp, i) { netif_napi_add(bp->dev, &bnx2x_fp(bp, i, napi), bnx2x_poll, NAPI_POLL_WEIGHT); - napi_hash_add(&bnx2x_fp(bp, i, napi)); } } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index db15c5ee09c5..f2d0dc9b1c41 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -4227,12 +4227,10 @@ static void bnxt_init_napi(struct bnxt *bp) bnapi = bp->bnapi[i]; netif_napi_add(bp->dev, &bnapi->napi, bnxt_poll, 64); - napi_hash_add(&bnapi->napi); } } else { bnapi = bp->bnapi[0]; netif_napi_add(bp->dev, &bnapi->napi, bnxt_poll, 64); - napi_hash_add(&bnapi->napi); } } diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c index f650f295f264..48d8fbb1c220 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c @@ -2527,7 +2527,6 @@ int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq, goto err; netif_napi_add(dev, &iq->napi, napi_rx_handler, 64); - napi_hash_add(&iq->napi); iq->cur_desc = iq->desc; iq->cidx = 0; iq->gen = 1; diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index b36643ef0593..b2182d3ba3cc 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -2458,13 +2458,11 @@ static int enic_dev_init(struct enic *enic) switch (vnic_dev_get_intr_mode(enic->vdev)) { default: netif_napi_add(netdev, &enic->napi[0], enic_poll, 64); - napi_hash_add(&enic->napi[0]); break; case VNIC_DEV_INTR_MODE_MSIX: for (i = 0; i < enic->rq_count; i++) { netif_napi_add(netdev, &enic->napi[i], enic_poll_msix_rq, NAPI_POLL_WEIGHT); - napi_hash_add(&enic->napi[i]); } for (i = 0; i < enic->wq_count; i++) netif_napi_add(netdev, &enic->napi[enic_cq_wq(enic, i)], diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index c29d62496ad9..4cab8879f5ae 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -2630,7 +2630,6 @@ static int be_evt_queues_create(struct be_adapter *adapter) eqo->affinity_mask); netif_napi_add(adapter->netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT); - napi_hash_add(&eqo->napi); } return 0; } diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c index f3168bcc7d87..e771e764daa3 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c @@ -844,7 +844,6 @@ static int ixgbe_alloc_q_vector(struct ixgbe_adapter *adapter, /* initialize NAPI */ netif_napi_add(adapter->netdev, &q_vector->napi, ixgbe_poll, 64); - napi_hash_add(&q_vector->napi); #ifdef CONFIG_NET_RX_BUSY_POLL /* initialize busy poll */ diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c index 592ff237d692..2955186cd4f6 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c +++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c @@ -2483,9 +2483,6 @@ static int ixgbevf_alloc_q_vectors(struct ixgbevf_adapter *adapter) q_vector->v_idx = q_idx; netif_napi_add(adapter->netdev, &q_vector->napi, ixgbevf_poll, 64); -#ifdef CONFIG_NET_RX_BUSY_POLL - napi_hash_add(&q_vector->napi); -#endif adapter->q_vector[q_idx] = q_vector; } diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c index 3a6176fea78d..af975a2b74c6 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c @@ -155,13 +155,11 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, cq->mcq.comp = cq->is_tx ? mlx4_en_tx_irq : mlx4_en_rx_irq; cq->mcq.event = mlx4_en_cq_event; - if (cq->is_tx) { + if (cq->is_tx) netif_tx_napi_add(cq->dev, &cq->napi, mlx4_en_poll_tx_cq, NAPI_POLL_WEIGHT); - } else { + else netif_napi_add(cq->dev, &cq->napi, mlx4_en_poll_rx_cq, 64); - napi_hash_add(&cq->napi); - } napi_enable(&cq->napi); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index ffb1f9c1b973..f6a8cc787603 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -982,7 +982,6 @@ static int mlx5e_open_channel(struct mlx5e_priv *priv, int ix, mlx5e_build_channeltc_to_txq_map(priv, ix); netif_napi_add(netdev, &c->napi, mlx5e_napi_poll, 64); - napi_hash_add(&c->napi); err = mlx5e_open_tx_cqs(c, cparam); if (err) diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c index acf866147d65..270c9eeb7ab6 100644 --- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c +++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c @@ -3814,7 +3814,6 @@ static int myri10ge_alloc_slices(struct myri10ge_priv *mgp) ss->dev = mgp->dev; netif_napi_add(ss->dev, &ss->napi, myri10ge_poll, myri10ge_napi_weight); - napi_hash_add(&ss->napi); } return 0; abort: diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index a3c42a376741..4e82bcfbe3e0 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -2059,7 +2059,6 @@ static void efx_init_napi_channel(struct efx_channel *channel) channel->napi_dev = efx->net_dev; netif_napi_add(channel->napi_dev, &channel->napi_str, efx_poll, napi_weight); - napi_hash_add(&channel->napi_str); efx_channel_busy_poll_init(channel); } diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index d1d14cecf450..b1ae4cbf2453 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -1610,7 +1610,6 @@ static int virtnet_alloc_queues(struct virtnet_info *vi) vi->rq[i].pages = NULL; netif_napi_add(vi->dev, &vi->rq[i].napi, virtnet_poll, napi_weight); - napi_hash_add(&vi->rq[i].napi); sg_init_table(vi->rq[i].sg, ARRAY_SIZE(vi->rq[i].sg)); ewma_pkt_len_init(&vi->rq[i].mrg_avg_pkt_len); diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index e5c33b29471b..7d2d1d7aaec7 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -466,6 +466,9 @@ static inline void napi_complete(struct napi_struct *n) * @napi: napi context * * generate a new napi_id and store a @napi under it in napi_hash + * Used for busy polling (CONFIG_NET_RX_BUSY_POLL) + * Note: This is normally automatically done from netif_napi_add(), + * so might disappear in a future linux version. */ void napi_hash_add(struct napi_struct *napi); @@ -476,6 +479,10 @@ void napi_hash_add(struct napi_struct *napi); * Warning: caller must observe rcu grace period * before freeing memory containing @napi, if * this function returns true. + * Note: core networking stack automatically calls it + * from netif_napi_del() + * Drivers might want to call this helper to combine all + * the needed rcu grace periods into a single one. */ bool napi_hash_del(struct napi_struct *napi); diff --git a/net/core/dev.c b/net/core/dev.c index 59dddac1c2e7..41cef3e3f558 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4807,6 +4807,7 @@ void netif_napi_add(struct net_device *dev, struct napi_struct *napi, napi->poll_owner = -1; #endif set_bit(NAPI_STATE_SCHED, &napi->state); + napi_hash_add(napi); } EXPORT_SYMBOL(netif_napi_add); @@ -4826,8 +4827,12 @@ void napi_disable(struct napi_struct *n) } EXPORT_SYMBOL(napi_disable); +/* Must be called in process context */ void netif_napi_del(struct napi_struct *napi) { + might_sleep(); + if (napi_hash_del(napi)) + synchronize_net(); list_del_init(&napi->dev_list); napi_free_frags(napi); @@ -7227,11 +7232,13 @@ EXPORT_SYMBOL(alloc_netdev_mqs); * This function does the last stage of destroying an allocated device * interface. The reference to the device object is released. * If this is the last reference then it will be freed. + * Must be called in process context. */ void free_netdev(struct net_device *dev) { struct napi_struct *p, *n; + might_sleep(); netif_free_tx_queues(dev); #ifdef CONFIG_SYSFS kvfree(dev->_rx); -- cgit v1.2.3-71-gd317 From f5c4a42a7549cbc29dbac2b5ede05a3bc2bb4522 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Thu, 5 Nov 2015 07:09:59 +0100 Subject: Bluetooth: Add hci_skb_* helper wrappers for bt_cb(skb) access For all the HCI driver related variables accesssed via bt_cb(skb), provide helper wrappers. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- include/net/bluetooth/bluetooth.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 42844d7b154a..663e0ef1eaa0 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -316,6 +316,10 @@ struct bt_skb_cb { }; #define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb)) +#define hci_skb_pkt_type(skb) bt_cb((skb))->pkt_type +#define hci_skb_expect(skb) bt_cb((skb))->expect +#define hci_skb_opcode(skb) bt_cb((skb))->hci.opcode + static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how) { struct sk_buff *skb; -- cgit v1.2.3-71-gd317 From 5fcc86bd2695d4ccad2d87cb424f4c01a4e544f3 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Thu, 5 Nov 2015 09:31:39 +0200 Subject: Bluetooth: Remove redundant setting to zero of bt_cb The socket allocation functions will always memset skb->cb to zero so there's no need to make other initializations needing the same thing. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/bluetooth.h | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 663e0ef1eaa0..a85e6d3d75ef 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -325,10 +325,8 @@ static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how) struct sk_buff *skb; skb = alloc_skb(len + BT_SKB_RESERVE, how); - if (skb) { + if (skb) skb_reserve(skb, BT_SKB_RESERVE); - bt_cb(skb)->incoming = 0; - } return skb; } @@ -338,10 +336,8 @@ static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk, struct sk_buff *skb; skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err); - if (skb) { + if (skb) skb_reserve(skb, BT_SKB_RESERVE); - bt_cb(skb)->incoming = 0; - } if (!skb && *err) return NULL; -- cgit v1.2.3-71-gd317 From 44d271377479c4d4fe7f2d07d188656684773fbd Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Thu, 5 Nov 2015 09:31:40 +0200 Subject: Bluetooth: Compress the size of struct hci_ctrl We can reduce the size of the hci_ctrl struct by converting 'bool req_start' to 'u8 req_flags' and making the two function pointers a union (since only one is ever set at a time). Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/bluetooth.h | 11 ++++++++--- net/bluetooth/hci_core.c | 14 +++++++------- net/bluetooth/hci_request.c | 10 +++++++--- net/bluetooth/hci_sock.c | 2 +- 4 files changed, 23 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index a85e6d3d75ef..8d38f411009c 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -296,12 +296,17 @@ typedef void (*hci_req_complete_t)(struct hci_dev *hdev, u8 status, u16 opcode); typedef void (*hci_req_complete_skb_t)(struct hci_dev *hdev, u8 status, u16 opcode, struct sk_buff *skb); +#define HCI_REQ_START BIT(0) +#define HCI_REQ_SKB BIT(1) + struct hci_ctrl { __u16 opcode; - bool req_start; + u8 req_flags; u8 req_event; - hci_req_complete_t req_complete; - hci_req_complete_skb_t req_complete_skb; + union { + hci_req_complete_t req_complete; + hci_req_complete_skb_t req_complete_skb; + }; }; struct bt_skb_cb { diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index db26cbd1cd9d..bc97fc6de876 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3695,7 +3695,7 @@ int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, /* Stand-alone HCI commands must be flagged as * single-command requests. */ - bt_cb(skb)->hci.req_start = true; + bt_cb(skb)->hci.req_flags |= HCI_REQ_START; skb_queue_tail(&hdev->cmd_q, skb); queue_work(hdev->workqueue, &hdev->cmd_work); @@ -4392,7 +4392,7 @@ static bool hci_req_is_complete(struct hci_dev *hdev) if (!skb) return true; - return bt_cb(skb)->hci.req_start; + return (bt_cb(skb)->hci.req_flags & HCI_REQ_START); } static void hci_resend_last(struct hci_dev *hdev) @@ -4452,20 +4452,20 @@ void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status, * callback would be found in hdev->sent_cmd instead of the * command queue (hdev->cmd_q). */ - if (bt_cb(hdev->sent_cmd)->hci.req_complete) { - *req_complete = bt_cb(hdev->sent_cmd)->hci.req_complete; + if (bt_cb(hdev->sent_cmd)->hci.req_flags & HCI_REQ_SKB) { + *req_complete_skb = bt_cb(hdev->sent_cmd)->hci.req_complete_skb; return; } - if (bt_cb(hdev->sent_cmd)->hci.req_complete_skb) { - *req_complete_skb = bt_cb(hdev->sent_cmd)->hci.req_complete_skb; + if (bt_cb(hdev->sent_cmd)->hci.req_complete) { + *req_complete = bt_cb(hdev->sent_cmd)->hci.req_complete; return; } /* Remove all pending commands belonging to this request */ spin_lock_irqsave(&hdev->cmd_q.lock, flags); while ((skb = __skb_dequeue(&hdev->cmd_q))) { - if (bt_cb(skb)->hci.req_start) { + if (bt_cb(skb)->hci.req_flags & HCI_REQ_START) { __skb_queue_head(&hdev->cmd_q, skb); break; } diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index bdb170995966..5ba27c30e8f2 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -56,8 +56,12 @@ static int req_run(struct hci_request *req, hci_req_complete_t complete, return -ENODATA; skb = skb_peek_tail(&req->cmd_q); - bt_cb(skb)->hci.req_complete = complete; - bt_cb(skb)->hci.req_complete_skb = complete_skb; + if (complete) { + bt_cb(skb)->hci.req_complete = complete; + } else if (complete_skb) { + bt_cb(skb)->hci.req_complete_skb = complete_skb; + bt_cb(skb)->hci.req_flags |= HCI_REQ_SKB; + } spin_lock_irqsave(&hdev->cmd_q.lock, flags); skb_queue_splice_tail(&req->cmd_q, &hdev->cmd_q); @@ -128,7 +132,7 @@ void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, } if (skb_queue_empty(&req->cmd_q)) - bt_cb(skb)->hci.req_start = true; + bt_cb(skb)->hci.req_flags |= HCI_REQ_START; bt_cb(skb)->hci.req_event = event; diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 235ad0fa3571..19b23013c4f6 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -1249,7 +1249,7 @@ static int hci_sock_sendmsg(struct socket *sock, struct msghdr *msg, /* Stand-alone HCI commands must be flagged as * single-command requests. */ - bt_cb(skb)->hci.req_start = true; + bt_cb(skb)->hci.req_flags |= HCI_REQ_START; skb_queue_tail(&hdev->cmd_q, skb); queue_work(hdev->workqueue, &hdev->cmd_work); -- cgit v1.2.3-71-gd317 From dd31506d4aece48943802c2bca3f1f7d2e7266b4 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Sun, 8 Nov 2015 07:47:12 +0100 Subject: Bluetooth: Add support for sending system notes to monitor channel The monitor channel can be used to send generic system notes as text strings for debugging purposes. This adds the system note monitor code and uses it for including kernel and subsystem version into traces. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- include/net/bluetooth/bluetooth.h | 2 ++ include/net/bluetooth/hci_mon.h | 1 + net/bluetooth/af_bluetooth.c | 8 +++----- net/bluetooth/hci_sock.c | 29 +++++++++++++++++++++++++++++ 4 files changed, 35 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h index 8d38f411009c..bfd1590821d6 100644 --- a/include/net/bluetooth/bluetooth.h +++ b/include/net/bluetooth/bluetooth.h @@ -29,6 +29,8 @@ #include #include +#define BT_SUBSYS_VERSION "2.21" + #ifndef AF_BLUETOOTH #define AF_BLUETOOTH 31 #define PF_BLUETOOTH AF_BLUETOOTH diff --git a/include/net/bluetooth/hci_mon.h b/include/net/bluetooth/hci_mon.h index 2b67567cf28d..c91bb23eb29e 100644 --- a/include/net/bluetooth/hci_mon.h +++ b/include/net/bluetooth/hci_mon.h @@ -43,6 +43,7 @@ struct hci_mon_hdr { #define HCI_MON_CLOSE_INDEX 9 #define HCI_MON_INDEX_INFO 10 #define HCI_MON_VENDOR_DIAG 11 +#define HCI_MON_SYSTEM_NOTE 12 struct hci_mon_new_index { __u8 type; diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index a3bffd1ec2b4..34c53d5862f6 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -33,8 +33,6 @@ #include "selftest.h" -#define VERSION "2.21" - /* Bluetooth sockets */ #define BT_MAX_PROTO 8 static const struct net_proto_family *bt_proto[BT_MAX_PROTO]; @@ -715,7 +713,7 @@ static int __init bt_init(void) sock_skb_cb_check_size(sizeof(struct bt_skb_cb)); - BT_INFO("Core ver %s", VERSION); + BT_INFO("Core ver %s", BT_SUBSYS_VERSION); err = bt_selftest(); if (err < 0) @@ -789,7 +787,7 @@ subsys_initcall(bt_init); module_exit(bt_exit); MODULE_AUTHOR("Marcel Holtmann "); -MODULE_DESCRIPTION("Bluetooth Core ver " VERSION); -MODULE_VERSION(VERSION); +MODULE_DESCRIPTION("Bluetooth Core ver " BT_SUBSYS_VERSION); +MODULE_VERSION(BT_SUBSYS_VERSION); MODULE_LICENSE("GPL"); MODULE_ALIAS_NETPROTO(PF_BLUETOOTH); diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 18a41eae295c..710265c35d16 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -26,6 +26,8 @@ #include #include +#include +#include #include #include @@ -383,6 +385,29 @@ static struct sk_buff *create_monitor_event(struct hci_dev *hdev, int event) return skb; } +static void send_monitor_note(struct sock *sk, const char *text) +{ + size_t len = strlen(text); + struct hci_mon_hdr *hdr; + struct sk_buff *skb; + + skb = bt_skb_alloc(len + 1, GFP_ATOMIC); + if (!skb) + return; + + strcpy(skb_put(skb, len + 1), text); + + __net_timestamp(skb); + + hdr = (void *)skb_push(skb, HCI_MON_HDR_SIZE); + hdr->opcode = cpu_to_le16(HCI_MON_SYSTEM_NOTE); + hdr->index = cpu_to_le16(HCI_DEV_NONE); + hdr->len = cpu_to_le16(skb->len - HCI_MON_HDR_SIZE); + + if (sock_queue_rcv_skb(sk, skb)) + kfree_skb(skb); +} + static void send_monitor_replay(struct sock *sk) { struct hci_dev *hdev; @@ -872,6 +897,10 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, */ hci_sock_set_flag(sk, HCI_SOCK_TRUSTED); + send_monitor_note(sk, "Linux version " UTS_RELEASE + " (" UTS_MACHINE ")"); + send_monitor_note(sk, "Bluetooth subsystem version " + BT_SUBSYS_VERSION); send_monitor_replay(sk); atomic_inc(&monitor_promisc); -- cgit v1.2.3-71-gd317 From ac71494934c475e3f51e5e3e64a12f57618d82a4 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Sun, 8 Nov 2015 07:47:13 +0100 Subject: Bluetooth: Add support for controller specific logging To enable controller specific logging, the userspace daemon has to have the ability to log per controller. To facilitate this support, provide a dedicated logging channel. Messages in this channel will be included in the monitor queue and with that also forwarded to monitoring tools along with the actual hardware traces. All messages from the logging channel are timestamped and with that allow an easy correlation between userspace messages and hardware events. This will increase the ability to debug problems faster. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- include/net/bluetooth/hci_mon.h | 1 + include/net/bluetooth/hci_sock.h | 1 + net/bluetooth/hci_sock.c | 102 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 104 insertions(+) (limited to 'include') diff --git a/include/net/bluetooth/hci_mon.h b/include/net/bluetooth/hci_mon.h index c91bb23eb29e..587d0131b349 100644 --- a/include/net/bluetooth/hci_mon.h +++ b/include/net/bluetooth/hci_mon.h @@ -44,6 +44,7 @@ struct hci_mon_hdr { #define HCI_MON_INDEX_INFO 10 #define HCI_MON_VENDOR_DIAG 11 #define HCI_MON_SYSTEM_NOTE 12 +#define HCI_MON_USER_LOGGING 13 struct hci_mon_new_index { __u8 type; diff --git a/include/net/bluetooth/hci_sock.h b/include/net/bluetooth/hci_sock.h index 9a46d665c1b5..8e9138acdae1 100644 --- a/include/net/bluetooth/hci_sock.h +++ b/include/net/bluetooth/hci_sock.h @@ -45,6 +45,7 @@ struct sockaddr_hci { #define HCI_CHANNEL_USER 1 #define HCI_CHANNEL_MONITOR 2 #define HCI_CHANNEL_CONTROL 3 +#define HCI_CHANNEL_LOGGING 4 struct hci_filter { unsigned long type_mask; diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 710265c35d16..41f579ba447b 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -906,6 +906,18 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, atomic_inc(&monitor_promisc); break; + case HCI_CHANNEL_LOGGING: + if (haddr.hci_dev != HCI_DEV_NONE) { + err = -EINVAL; + goto done; + } + + if (!capable(CAP_NET_ADMIN)) { + err = -EPERM; + goto done; + } + break; + default: if (!hci_mgmt_chan_find(haddr.hci_channel)) { err = -EINVAL; @@ -1033,6 +1045,9 @@ static int hci_sock_recvmsg(struct socket *sock, struct msghdr *msg, if (flags & MSG_OOB) return -EOPNOTSUPP; + if (hci_pi(sk)->channel == HCI_CHANNEL_LOGGING) + return -EOPNOTSUPP; + if (sk->sk_state == BT_CLOSED) return 0; @@ -1179,6 +1194,90 @@ done: return err; } +static int hci_logging_frame(struct sock *sk, struct msghdr *msg, int len) +{ + struct hci_mon_hdr *hdr; + struct sk_buff *skb; + struct hci_dev *hdev; + u16 index; + int err; + + /* The logging frame consists at minimum of the standard header, + * the priority byte, the ident length byte and at least one string + * terminator NUL byte. Anything shorter are invalid packets. + */ + if (len < sizeof(*hdr) + 3) + return -EINVAL; + + skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); + if (!skb) + return err; + + if (memcpy_from_msg(skb_put(skb, len), msg, len)) { + err = -EFAULT; + goto drop; + } + + hdr = (void *)skb->data; + + if (__le16_to_cpu(hdr->len) != len - sizeof(*hdr)) { + err = -EINVAL; + goto drop; + } + + if (__le16_to_cpu(hdr->opcode) == 0x0000) { + __u8 priority = skb->data[sizeof(*hdr)]; + __u8 ident_len = skb->data[sizeof(*hdr) + 1]; + + /* Only the priorities 0-7 are valid and with that any other + * value results in an invalid packet. + * + * The priority byte is followed by an ident length byte and + * the NUL terminated ident string. Check that the ident + * length is not overflowing the packet and also that the + * ident string itself is NUL terminated. In case the ident + * length is zero, the length value actually doubles as NUL + * terminator identifier. + * + * The message follows the ident string (if present) and + * must be NUL terminated. Otherwise it is not a valid packet. + */ + if (priority > 7 || skb->data[len - 1] != 0x00 || + ident_len > len - sizeof(*hdr) - 3 || + skb->data[sizeof(*hdr) + ident_len + 1] != 0x00) { + err = -EINVAL; + goto drop; + } + } else { + err = -EINVAL; + goto drop; + } + + index = __le16_to_cpu(hdr->index); + + if (index != MGMT_INDEX_NONE) { + hdev = hci_dev_get(index); + if (!hdev) { + err = -ENODEV; + goto drop; + } + } else { + hdev = NULL; + } + + hdr->opcode = cpu_to_le16(HCI_MON_USER_LOGGING); + + hci_send_to_channel(HCI_CHANNEL_MONITOR, skb, HCI_SOCK_TRUSTED, NULL); + err = len; + + if (hdev) + hci_dev_put(hdev); + +drop: + kfree_skb(skb); + return err; +} + static int hci_sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) { @@ -1208,6 +1307,9 @@ static int hci_sock_sendmsg(struct socket *sock, struct msghdr *msg, case HCI_CHANNEL_MONITOR: err = -EOPNOTSUPP; goto done; + case HCI_CHANNEL_LOGGING: + err = hci_logging_frame(sk, msg, len); + goto done; default: mutex_lock(&mgmt_chan_list_lock); chan = __hci_mgmt_chan_find(hci_pi(sk)->channel); -- cgit v1.2.3-71-gd317 From 030e7f8141a262e32dc064d7cf12377d769d45c2 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Tue, 10 Nov 2015 09:44:53 +0200 Subject: Bluetooth: Remove unnecessary call to hci_update_background_scan The hci_conn_params_clear_all() function is only called from hci_unregister_dev() at which point it's completely futile to try to do any LE scanning updates. Simply remove this unnecessary function call. At the same time we can make the function static since it's only accessed from within the same c-file. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci_core.h | 1 - net/bluetooth/hci_core.c | 4 +--- 2 files changed, 1 insertion(+), 4 deletions(-) (limited to 'include') diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 1878d0a96333..15e6a2bffc2b 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1036,7 +1036,6 @@ struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); -void hci_conn_params_clear_all(struct hci_dev *hdev); void hci_conn_params_clear_disabled(struct hci_dev *hdev); struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index bc97fc6de876..ea648e9913f9 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3070,15 +3070,13 @@ void hci_conn_params_clear_disabled(struct hci_dev *hdev) } /* This function requires the caller holds hdev->lock */ -void hci_conn_params_clear_all(struct hci_dev *hdev) +static void hci_conn_params_clear_all(struct hci_dev *hdev) { struct hci_conn_params *params, *tmp; list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list) hci_conn_params_free(params); - hci_update_background_scan(hdev); - BT_DBG("All LE connection parameters were removed"); } -- cgit v1.2.3-71-gd317 From 2e93e53b8f86fb38a9a3c3bd08e539c40b3f8d89 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 11 Nov 2015 08:11:17 +0200 Subject: Bluetooth: Run all background scan updates through req_workqueue Instead of firing off a simple async request queue all background scan updates through req_workqueue and use hci_req_sync() there to ensure that no two updates overlap with each other. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci_core.h | 2 ++ net/bluetooth/hci_request.c | 39 +++++++++++++++++---------------------- net/bluetooth/hci_request.h | 6 +++++- net/bluetooth/mgmt.c | 2 +- 4 files changed, 25 insertions(+), 24 deletions(-) (limited to 'include') diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 15e6a2bffc2b..c2ca6a58d1e0 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -327,6 +327,8 @@ struct hci_dev { struct work_struct cmd_work; struct work_struct tx_work; + struct work_struct bg_scan_update; + struct sk_buff_head rx_q; struct sk_buff_head raw_q; struct sk_buff_head cmd_q; diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index d48206277fe4..0adbb59ec2f0 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -731,28 +731,6 @@ void __hci_update_background_scan(struct hci_request *req) } } -static void update_background_scan_complete(struct hci_dev *hdev, u8 status, - u16 opcode) -{ - if (status) - BT_DBG("HCI request failed to update background scanning: " - "status 0x%2.2x", status); -} - -void hci_update_background_scan(struct hci_dev *hdev) -{ - int err; - struct hci_request req; - - hci_req_init(&req, hdev); - - __hci_update_background_scan(&req); - - err = hci_req_run(&req, update_background_scan_complete); - if (err && err != -ENODATA) - BT_ERR("Failed to run HCI request: err %d", err); -} - void __hci_abort_conn(struct hci_request *req, struct hci_conn *conn, u8 reason) { @@ -846,10 +824,27 @@ int hci_abort_conn(struct hci_conn *conn, u8 reason) return 0; } +static void update_bg_scan(struct hci_request *req, unsigned long opt) +{ + hci_dev_lock(req->hdev); + __hci_update_background_scan(req); + hci_dev_unlock(req->hdev); +} + +static void bg_scan_update(struct work_struct *work) +{ + struct hci_dev *hdev = container_of(work, struct hci_dev, + bg_scan_update); + + hci_req_sync(hdev, update_bg_scan, 0, HCI_CMD_TIMEOUT); +} + void hci_request_setup(struct hci_dev *hdev) { + INIT_WORK(&hdev->bg_scan_update, bg_scan_update); } void hci_request_cancel_all(struct hci_dev *hdev) { + cancel_work_sync(&hdev->bg_scan_update); } diff --git a/net/bluetooth/hci_request.h b/net/bluetooth/hci_request.h index 9759b7175f8e..983e687fee22 100644 --- a/net/bluetooth/hci_request.h +++ b/net/bluetooth/hci_request.h @@ -64,12 +64,16 @@ void __hci_update_page_scan(struct hci_request *req); int hci_update_random_address(struct hci_request *req, bool require_privacy, u8 *own_addr_type); -void hci_update_background_scan(struct hci_dev *hdev); void __hci_update_background_scan(struct hci_request *req); int hci_abort_conn(struct hci_conn *conn, u8 reason); void __hci_abort_conn(struct hci_request *req, struct hci_conn *conn, u8 reason); +static inline void hci_update_background_scan(struct hci_dev *hdev) +{ + queue_work(hdev->req_workqueue, &hdev->bg_scan_update); +} + void hci_request_setup(struct hci_dev *hdev); void hci_request_cancel_all(struct hci_dev *hdev); diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 7f22119276f3..29c9fec814b4 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -2510,8 +2510,8 @@ static void le_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode) hci_req_init(&req, hdev); update_adv_data(&req); update_scan_rsp_data(&req); - __hci_update_background_scan(&req); hci_req_run(&req, NULL); + hci_update_background_scan(hdev); } unlock: -- cgit v1.2.3-71-gd317 From 4ebeee2dff9815619be6ff9a845d33716f48468c Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 11 Nov 2015 08:11:19 +0200 Subject: Bluetooth: Add HCI status return parameter to hci_req_sync() In some cases it may be important to get the exact HCI status rather than the converted HCI-to-errno value. Add an optional return parameter to the hci_req_sync() API to allow for this. Since there are no good HCI translation candidates for cancelation and timeout, use the "unknown" status code for those cases. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci.h | 3 ++- net/bluetooth/hci_core.c | 26 +++++++++++++------------- net/bluetooth/hci_request.c | 12 +++++++++--- net/bluetooth/hci_request.h | 4 ++-- 4 files changed, 26 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 0205b80cc90b..cc2216727655 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -452,7 +452,8 @@ enum { #define HCI_ERROR_REMOTE_POWER_OFF 0x15 #define HCI_ERROR_LOCAL_HOST_TERM 0x16 #define HCI_ERROR_PAIRING_NOT_ALLOWED 0x18 -#define HCI_ERROR_INVALID_LL_PARAMS 0x1E +#define HCI_ERROR_INVALID_LL_PARAMS 0x1e +#define HCI_ERROR_UNSPECIFIED 0x1f #define HCI_ERROR_ADVERTISING_TIMEOUT 0x3c /* Flow control modes */ diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 965bc01a0d91..029d7798cffa 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -768,14 +768,14 @@ static int __hci_init(struct hci_dev *hdev) { int err; - err = __hci_req_sync(hdev, hci_init1_req, 0, HCI_INIT_TIMEOUT); + err = __hci_req_sync(hdev, hci_init1_req, 0, HCI_INIT_TIMEOUT, NULL); if (err < 0) return err; if (hci_dev_test_flag(hdev, HCI_SETUP)) hci_debugfs_create_basic(hdev); - err = __hci_req_sync(hdev, hci_init2_req, 0, HCI_INIT_TIMEOUT); + err = __hci_req_sync(hdev, hci_init2_req, 0, HCI_INIT_TIMEOUT, NULL); if (err < 0) return err; @@ -786,11 +786,11 @@ static int __hci_init(struct hci_dev *hdev) if (hdev->dev_type != HCI_BREDR) return 0; - err = __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT); + err = __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT, NULL); if (err < 0) return err; - err = __hci_req_sync(hdev, hci_init4_req, 0, HCI_INIT_TIMEOUT); + err = __hci_req_sync(hdev, hci_init4_req, 0, HCI_INIT_TIMEOUT, NULL); if (err < 0) return err; @@ -846,7 +846,7 @@ static int __hci_unconf_init(struct hci_dev *hdev) if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) return 0; - err = __hci_req_sync(hdev, hci_init0_req, 0, HCI_INIT_TIMEOUT); + err = __hci_req_sync(hdev, hci_init0_req, 0, HCI_INIT_TIMEOUT, NULL); if (err < 0) return err; @@ -1204,7 +1204,7 @@ int hci_inquiry(void __user *arg) if (do_inquiry) { err = hci_req_sync(hdev, hci_inq_req, (unsigned long) &ir, - timeo); + timeo, NULL); if (err < 0) goto done; @@ -1570,7 +1570,7 @@ int hci_dev_do_close(struct hci_dev *hdev) if (test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks) && !auto_off && !hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) { set_bit(HCI_INIT, &hdev->flags); - __hci_req_sync(hdev, hci_reset_req, 0, HCI_CMD_TIMEOUT); + __hci_req_sync(hdev, hci_reset_req, 0, HCI_CMD_TIMEOUT, NULL); clear_bit(HCI_INIT, &hdev->flags); } @@ -1667,7 +1667,7 @@ static int hci_dev_do_reset(struct hci_dev *hdev) atomic_set(&hdev->cmd_cnt, 1); hdev->acl_cnt = 0; hdev->sco_cnt = 0; hdev->le_cnt = 0; - ret = __hci_req_sync(hdev, hci_reset_req, 0, HCI_INIT_TIMEOUT); + ret = __hci_req_sync(hdev, hci_reset_req, 0, HCI_INIT_TIMEOUT, NULL); hci_req_sync_unlock(hdev); return ret; @@ -1802,7 +1802,7 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg) switch (cmd) { case HCISETAUTH: err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt, - HCI_INIT_TIMEOUT); + HCI_INIT_TIMEOUT, NULL); break; case HCISETENCRYPT: @@ -1814,18 +1814,18 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg) if (!test_bit(HCI_AUTH, &hdev->flags)) { /* Auth must be enabled first */ err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt, - HCI_INIT_TIMEOUT); + HCI_INIT_TIMEOUT, NULL); if (err) break; } err = hci_req_sync(hdev, hci_encrypt_req, dr.dev_opt, - HCI_INIT_TIMEOUT); + HCI_INIT_TIMEOUT, NULL); break; case HCISETSCAN: err = hci_req_sync(hdev, hci_scan_req, dr.dev_opt, - HCI_INIT_TIMEOUT); + HCI_INIT_TIMEOUT, NULL); /* Ensure that the connectable and discoverable states * get correctly modified as this was a non-mgmt change. @@ -1836,7 +1836,7 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg) case HCISETLINKPOL: err = hci_req_sync(hdev, hci_linkpol_req, dr.dev_opt, - HCI_INIT_TIMEOUT); + HCI_INIT_TIMEOUT, NULL); break; case HCISETLINKMODE: diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index 0adbb59ec2f0..b1d4d5bba7c1 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -186,7 +186,7 @@ EXPORT_SYMBOL(__hci_cmd_sync); /* Execute request and wait for completion. */ int __hci_req_sync(struct hci_dev *hdev, void (*func)(struct hci_request *req, unsigned long opt), - unsigned long opt, __u32 timeout) + unsigned long opt, u32 timeout, u8 *hci_status) { struct hci_request req; DECLARE_WAITQUEUE(wait, current); @@ -231,14 +231,20 @@ int __hci_req_sync(struct hci_dev *hdev, void (*func)(struct hci_request *req, switch (hdev->req_status) { case HCI_REQ_DONE: err = -bt_to_errno(hdev->req_result); + if (hci_status) + *hci_status = hdev->req_result; break; case HCI_REQ_CANCELED: err = -hdev->req_result; + if (hci_status) + *hci_status = HCI_ERROR_UNSPECIFIED; break; default: err = -ETIMEDOUT; + if (hci_status) + *hci_status = HCI_ERROR_UNSPECIFIED; break; } @@ -251,7 +257,7 @@ int __hci_req_sync(struct hci_dev *hdev, void (*func)(struct hci_request *req, int hci_req_sync(struct hci_dev *hdev, void (*req)(struct hci_request *req, unsigned long opt), - unsigned long opt, __u32 timeout) + unsigned long opt, u32 timeout, u8 *hci_status) { int ret; @@ -260,7 +266,7 @@ int hci_req_sync(struct hci_dev *hdev, void (*req)(struct hci_request *req, /* Serialize all requests */ hci_req_sync_lock(hdev); - ret = __hci_req_sync(hdev, req, opt, timeout); + ret = __hci_req_sync(hdev, req, opt, timeout, hci_status); hci_req_sync_unlock(hdev); return ret; diff --git a/net/bluetooth/hci_request.h b/net/bluetooth/hci_request.h index 983e687fee22..8441d12a62dd 100644 --- a/net/bluetooth/hci_request.h +++ b/net/bluetooth/hci_request.h @@ -46,10 +46,10 @@ void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status, int hci_req_sync(struct hci_dev *hdev, void (*req)(struct hci_request *req, unsigned long opt), - unsigned long opt, __u32 timeout); + unsigned long opt, u32 timeout, u8 *hci_status); int __hci_req_sync(struct hci_dev *hdev, void (*func)(struct hci_request *req, unsigned long opt), - unsigned long opt, __u32 timeout); + unsigned long opt, u32 timeout, u8 *hci_status); void hci_req_sync_cancel(struct hci_dev *hdev, int err); struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen, -- cgit v1.2.3-71-gd317 From 7c1fbed23981faff2840ddc8909e7c78d80ade30 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 11 Nov 2015 08:11:23 +0200 Subject: Bluetooth: Move LE scan disable/restart behind req_workqueue To avoid any risks of races, place also these LE scan modification work callbacks behind the same work queue as the other LE scan changes. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci_core.h | 5 +- net/bluetooth/hci_core.c | 168 ------------------------------------ net/bluetooth/hci_request.c | 179 +++++++++++++++++++++++++++++++++++++++ net/bluetooth/mgmt.c | 4 +- 4 files changed, 183 insertions(+), 173 deletions(-) (limited to 'include') diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index c2ca6a58d1e0..1f75aebbd8c4 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -328,6 +328,8 @@ struct hci_dev { struct work_struct tx_work; struct work_struct bg_scan_update; + struct delayed_work le_scan_disable; + struct delayed_work le_scan_restart; struct sk_buff_head rx_q; struct sk_buff_head raw_q; @@ -372,9 +374,6 @@ struct hci_dev { DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); - struct delayed_work le_scan_disable; - struct delayed_work le_scan_restart; - __s8 adv_tx_power; __u8 adv_data[HCI_MAX_AD_LENGTH]; __u8 adv_data_len; diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 029d7798cffa..0655521dd8bc 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -1527,9 +1527,6 @@ int hci_dev_do_close(struct hci_dev *hdev) if (hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE)) cancel_delayed_work(&hdev->service_cache); - cancel_delayed_work_sync(&hdev->le_scan_disable); - cancel_delayed_work_sync(&hdev->le_scan_restart); - if (hci_dev_test_flag(hdev, HCI_MGMT)) cancel_delayed_work_sync(&hdev->rpa_expired); @@ -2889,169 +2886,6 @@ static void hci_conn_params_clear_all(struct hci_dev *hdev) BT_DBG("All LE connection parameters were removed"); } -static void inquiry_complete(struct hci_dev *hdev, u8 status, u16 opcode) -{ - if (status) { - BT_ERR("Failed to start inquiry: status %d", status); - - hci_dev_lock(hdev); - hci_discovery_set_state(hdev, DISCOVERY_STOPPED); - hci_dev_unlock(hdev); - return; - } -} - -static void le_scan_disable_work_complete(struct hci_dev *hdev, u8 status, - u16 opcode) -{ - /* General inquiry access code (GIAC) */ - u8 lap[3] = { 0x33, 0x8b, 0x9e }; - struct hci_cp_inquiry cp; - int err; - - if (status) { - BT_ERR("Failed to disable LE scanning: status %d", status); - return; - } - - hdev->discovery.scan_start = 0; - - switch (hdev->discovery.type) { - case DISCOV_TYPE_LE: - hci_dev_lock(hdev); - hci_discovery_set_state(hdev, DISCOVERY_STOPPED); - hci_dev_unlock(hdev); - break; - - case DISCOV_TYPE_INTERLEAVED: - hci_dev_lock(hdev); - - if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, - &hdev->quirks)) { - /* If we were running LE only scan, change discovery - * state. If we were running both LE and BR/EDR inquiry - * simultaneously, and BR/EDR inquiry is already - * finished, stop discovery, otherwise BR/EDR inquiry - * will stop discovery when finished. If we will resolve - * remote device name, do not change discovery state. - */ - if (!test_bit(HCI_INQUIRY, &hdev->flags) && - hdev->discovery.state != DISCOVERY_RESOLVING) - hci_discovery_set_state(hdev, - DISCOVERY_STOPPED); - } else { - struct hci_request req; - - hci_inquiry_cache_flush(hdev); - - hci_req_init(&req, hdev); - - memset(&cp, 0, sizeof(cp)); - memcpy(&cp.lap, lap, sizeof(cp.lap)); - cp.length = DISCOV_INTERLEAVED_INQUIRY_LEN; - hci_req_add(&req, HCI_OP_INQUIRY, sizeof(cp), &cp); - - err = hci_req_run(&req, inquiry_complete); - if (err) { - BT_ERR("Inquiry request failed: err %d", err); - hci_discovery_set_state(hdev, - DISCOVERY_STOPPED); - } - } - - hci_dev_unlock(hdev); - break; - } -} - -static void le_scan_disable_work(struct work_struct *work) -{ - struct hci_dev *hdev = container_of(work, struct hci_dev, - le_scan_disable.work); - struct hci_request req; - int err; - - BT_DBG("%s", hdev->name); - - cancel_delayed_work_sync(&hdev->le_scan_restart); - - hci_req_init(&req, hdev); - - hci_req_add_le_scan_disable(&req); - - err = hci_req_run(&req, le_scan_disable_work_complete); - if (err) - BT_ERR("Disable LE scanning request failed: err %d", err); -} - -static void le_scan_restart_work_complete(struct hci_dev *hdev, u8 status, - u16 opcode) -{ - unsigned long timeout, duration, scan_start, now; - - BT_DBG("%s", hdev->name); - - if (status) { - BT_ERR("Failed to restart LE scan: status %d", status); - return; - } - - if (!test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks) || - !hdev->discovery.scan_start) - return; - - /* When the scan was started, hdev->le_scan_disable has been queued - * after duration from scan_start. During scan restart this job - * has been canceled, and we need to queue it again after proper - * timeout, to make sure that scan does not run indefinitely. - */ - duration = hdev->discovery.scan_duration; - scan_start = hdev->discovery.scan_start; - now = jiffies; - if (now - scan_start <= duration) { - int elapsed; - - if (now >= scan_start) - elapsed = now - scan_start; - else - elapsed = ULONG_MAX - scan_start + now; - - timeout = duration - elapsed; - } else { - timeout = 0; - } - queue_delayed_work(hdev->workqueue, - &hdev->le_scan_disable, timeout); -} - -static void le_scan_restart_work(struct work_struct *work) -{ - struct hci_dev *hdev = container_of(work, struct hci_dev, - le_scan_restart.work); - struct hci_request req; - struct hci_cp_le_set_scan_enable cp; - int err; - - BT_DBG("%s", hdev->name); - - /* If controller is not scanning we are done. */ - if (!hci_dev_test_flag(hdev, HCI_LE_SCAN)) - return; - - hci_req_init(&req, hdev); - - hci_req_add_le_scan_disable(&req); - - memset(&cp, 0, sizeof(cp)); - cp.enable = LE_SCAN_ENABLE; - cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE; - hci_req_add(&req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp); - - err = hci_req_run(&req, le_scan_restart_work_complete); - if (err) - BT_ERR("Restart LE scan request failed: err %d", err); -} - /* Copy the Identity Address of the controller. * * If the controller has a public BD_ADDR, then by default use that one. @@ -3151,8 +2985,6 @@ struct hci_dev *hci_alloc_dev(void) INIT_DELAYED_WORK(&hdev->power_off, hci_power_off); INIT_DELAYED_WORK(&hdev->discov_off, hci_discov_off); - INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable_work); - INIT_DELAYED_WORK(&hdev->le_scan_restart, le_scan_restart_work); INIT_DELAYED_WORK(&hdev->adv_instance_expire, hci_adv_timeout_expire); skb_queue_head_init(&hdev->rx_q); diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index 8aa06cc545c3..4588fe2bfc0e 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -858,12 +858,191 @@ static void bg_scan_update(struct work_struct *work) hci_dev_unlock(hdev); } +static void inquiry_complete(struct hci_dev *hdev, u8 status, u16 opcode) +{ + if (status) { + BT_ERR("Failed to start inquiry: status %d", status); + + hci_dev_lock(hdev); + hci_discovery_set_state(hdev, DISCOVERY_STOPPED); + hci_dev_unlock(hdev); + return; + } +} + +static void le_scan_disable_work_complete(struct hci_dev *hdev, u8 status) +{ + /* General inquiry access code (GIAC) */ + u8 lap[3] = { 0x33, 0x8b, 0x9e }; + struct hci_cp_inquiry cp; + int err; + + if (status) { + BT_ERR("Failed to disable LE scanning: status %d", status); + return; + } + + hdev->discovery.scan_start = 0; + + switch (hdev->discovery.type) { + case DISCOV_TYPE_LE: + hci_dev_lock(hdev); + hci_discovery_set_state(hdev, DISCOVERY_STOPPED); + hci_dev_unlock(hdev); + break; + + case DISCOV_TYPE_INTERLEAVED: + hci_dev_lock(hdev); + + if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, + &hdev->quirks)) { + /* If we were running LE only scan, change discovery + * state. If we were running both LE and BR/EDR inquiry + * simultaneously, and BR/EDR inquiry is already + * finished, stop discovery, otherwise BR/EDR inquiry + * will stop discovery when finished. If we will resolve + * remote device name, do not change discovery state. + */ + if (!test_bit(HCI_INQUIRY, &hdev->flags) && + hdev->discovery.state != DISCOVERY_RESOLVING) + hci_discovery_set_state(hdev, + DISCOVERY_STOPPED); + } else { + struct hci_request req; + + hci_inquiry_cache_flush(hdev); + + hci_req_init(&req, hdev); + + memset(&cp, 0, sizeof(cp)); + memcpy(&cp.lap, lap, sizeof(cp.lap)); + cp.length = DISCOV_INTERLEAVED_INQUIRY_LEN; + hci_req_add(&req, HCI_OP_INQUIRY, sizeof(cp), &cp); + + err = hci_req_run(&req, inquiry_complete); + if (err) { + BT_ERR("Inquiry request failed: err %d", err); + hci_discovery_set_state(hdev, + DISCOVERY_STOPPED); + } + } + + hci_dev_unlock(hdev); + break; + } +} + +static void le_scan_disable(struct hci_request *req, unsigned long opt) +{ + hci_req_add_le_scan_disable(req); +} + +static void le_scan_disable_work(struct work_struct *work) +{ + struct hci_dev *hdev = container_of(work, struct hci_dev, + le_scan_disable.work); + u8 status; + int err; + + BT_DBG("%s", hdev->name); + + cancel_delayed_work(&hdev->le_scan_restart); + + err = hci_req_sync(hdev, le_scan_disable, 0, HCI_CMD_TIMEOUT, &status); + if (err) + return; + + le_scan_disable_work_complete(hdev, status); +} + +static void le_scan_restart_work_complete(struct hci_dev *hdev, u8 status) +{ + unsigned long timeout, duration, scan_start, now; + + BT_DBG("%s", hdev->name); + + if (status) { + BT_ERR("Failed to restart LE scan: status %d", status); + return; + } + + hci_dev_lock(hdev); + + if (!test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks) || + !hdev->discovery.scan_start) + goto unlock; + + /* When the scan was started, hdev->le_scan_disable has been queued + * after duration from scan_start. During scan restart this job + * has been canceled, and we need to queue it again after proper + * timeout, to make sure that scan does not run indefinitely. + */ + duration = hdev->discovery.scan_duration; + scan_start = hdev->discovery.scan_start; + now = jiffies; + if (now - scan_start <= duration) { + int elapsed; + + if (now >= scan_start) + elapsed = now - scan_start; + else + elapsed = ULONG_MAX - scan_start + now; + + timeout = duration - elapsed; + } else { + timeout = 0; + } + + queue_delayed_work(hdev->req_workqueue, + &hdev->le_scan_disable, timeout); + +unlock: + hci_dev_unlock(hdev); +} + +static void le_scan_restart(struct hci_request *req, unsigned long opt) +{ + struct hci_dev *hdev = req->hdev; + struct hci_cp_le_set_scan_enable cp; + + /* If controller is not scanning we are done. */ + if (!hci_dev_test_flag(hdev, HCI_LE_SCAN)) + return; + + hci_req_add_le_scan_disable(req); + + memset(&cp, 0, sizeof(cp)); + cp.enable = LE_SCAN_ENABLE; + cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE; + hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp); +} + +static void le_scan_restart_work(struct work_struct *work) +{ + struct hci_dev *hdev = container_of(work, struct hci_dev, + le_scan_restart.work); + u8 status; + int err; + + BT_DBG("%s", hdev->name); + + err = hci_req_sync(hdev, le_scan_restart, 0, HCI_CMD_TIMEOUT, &status); + if (err) + return; + + le_scan_restart_work_complete(hdev, status); +} + void hci_request_setup(struct hci_dev *hdev) { INIT_WORK(&hdev->bg_scan_update, bg_scan_update); + INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable_work); + INIT_DELAYED_WORK(&hdev->le_scan_restart, le_scan_restart_work); } void hci_request_cancel_all(struct hci_dev *hdev) { cancel_work_sync(&hdev->bg_scan_update); + cancel_delayed_work_sync(&hdev->le_scan_disable); + cancel_delayed_work_sync(&hdev->le_scan_restart); } diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index bb870c3aadae..a229cfd0530e 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -4367,7 +4367,7 @@ static void start_discovery_complete(struct hci_dev *hdev, u8 status, hdev->discovery.scan_duration = timeout; } - queue_delayed_work(hdev->workqueue, + queue_delayed_work(hdev->req_workqueue, &hdev->le_scan_disable, timeout); } @@ -8389,7 +8389,7 @@ static void restart_le_scan(struct hci_dev *hdev) hdev->discovery.scan_duration)) return; - queue_delayed_work(hdev->workqueue, &hdev->le_scan_restart, + queue_delayed_work(hdev->req_workqueue, &hdev->le_scan_restart, DISCOV_LE_RESTART_DELAY); } -- cgit v1.2.3-71-gd317 From e68f072b7396574df5324e1cf93e4b0c92460735 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 11 Nov 2015 08:30:30 +0200 Subject: Bluetooth: Move Start Discovery to req_workqueue Since discovery also deals with LE scanning it makes sense to move it behind the same req_workqueue as other LE scanning changes. This also simplifies the logic since we do many of the actions in a synchronous manner. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci_core.h | 2 + net/bluetooth/hci_request.c | 202 +++++++++++++++++++++++++++++++++ net/bluetooth/mgmt.c | 238 ++------------------------------------- 3 files changed, 213 insertions(+), 229 deletions(-) (limited to 'include') diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 1f75aebbd8c4..72ea8a6d7d70 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -327,6 +327,7 @@ struct hci_dev { struct work_struct cmd_work; struct work_struct tx_work; + struct work_struct discov_update; struct work_struct bg_scan_update; struct delayed_work le_scan_disable; struct delayed_work le_scan_restart; @@ -1473,6 +1474,7 @@ void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, u8 status); void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); +void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index ecfa4105e00d..da1e30b85e77 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -1042,8 +1042,209 @@ static void le_scan_restart_work(struct work_struct *work) le_scan_restart_work_complete(hdev, status); } +static int bredr_inquiry(struct hci_request *req, unsigned long opt) +{ + struct hci_cp_inquiry cp; + /* General inquiry access code (GIAC) */ + u8 lap[3] = { 0x33, 0x8b, 0x9e }; + + BT_DBG("%s", req->hdev->name); + + hci_dev_lock(req->hdev); + hci_inquiry_cache_flush(req->hdev); + hci_dev_unlock(req->hdev); + + memset(&cp, 0, sizeof(cp)); + memcpy(&cp.lap, lap, sizeof(cp.lap)); + cp.length = DISCOV_BREDR_INQUIRY_LEN; + + hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp); + + return 0; +} + +static void cancel_adv_timeout(struct hci_dev *hdev) +{ + if (hdev->adv_instance_timeout) { + hdev->adv_instance_timeout = 0; + cancel_delayed_work(&hdev->adv_instance_expire); + } +} + +static void disable_advertising(struct hci_request *req) +{ + u8 enable = 0x00; + + hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable); +} + +static int active_scan(struct hci_request *req, unsigned long opt) +{ + uint16_t interval = opt; + struct hci_dev *hdev = req->hdev; + struct hci_cp_le_set_scan_param param_cp; + struct hci_cp_le_set_scan_enable enable_cp; + u8 own_addr_type; + int err; + + BT_DBG("%s", hdev->name); + + if (hci_dev_test_flag(hdev, HCI_LE_ADV)) { + hci_dev_lock(hdev); + + /* Don't let discovery abort an outgoing connection attempt + * that's using directed advertising. + */ + if (hci_lookup_le_connect(hdev)) { + hci_dev_unlock(hdev); + return -EBUSY; + } + + cancel_adv_timeout(hdev); + hci_dev_unlock(hdev); + + disable_advertising(req); + } + + /* If controller is scanning, it means the background scanning is + * running. Thus, we should temporarily stop it in order to set the + * discovery scanning parameters. + */ + if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) + hci_req_add_le_scan_disable(req); + + /* All active scans will be done with either a resolvable private + * address (when privacy feature has been enabled) or non-resolvable + * private address. + */ + err = hci_update_random_address(req, true, &own_addr_type); + if (err < 0) + own_addr_type = ADDR_LE_DEV_PUBLIC; + + memset(¶m_cp, 0, sizeof(param_cp)); + param_cp.type = LE_SCAN_ACTIVE; + param_cp.interval = cpu_to_le16(interval); + param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN); + param_cp.own_address_type = own_addr_type; + + hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp), + ¶m_cp); + + memset(&enable_cp, 0, sizeof(enable_cp)); + enable_cp.enable = LE_SCAN_ENABLE; + enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE; + + hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp), + &enable_cp); + + return 0; +} + +static int interleaved_discov(struct hci_request *req, unsigned long opt) +{ + int err; + + BT_DBG("%s", req->hdev->name); + + err = active_scan(req, opt); + if (err) + return err; + + return bredr_inquiry(req, opt); +} + +static void start_discovery(struct hci_dev *hdev, u8 *status) +{ + unsigned long timeout; + + BT_DBG("%s type %u", hdev->name, hdev->discovery.type); + + switch (hdev->discovery.type) { + case DISCOV_TYPE_BREDR: + if (!hci_dev_test_flag(hdev, HCI_INQUIRY)) + hci_req_sync(hdev, bredr_inquiry, 0, HCI_CMD_TIMEOUT, + status); + return; + case DISCOV_TYPE_INTERLEAVED: + /* When running simultaneous discovery, the LE scanning time + * should occupy the whole discovery time sine BR/EDR inquiry + * and LE scanning are scheduled by the controller. + * + * For interleaving discovery in comparison, BR/EDR inquiry + * and LE scanning are done sequentially with separate + * timeouts. + */ + if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, + &hdev->quirks)) { + timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT); + /* During simultaneous discovery, we double LE scan + * interval. We must leave some time for the controller + * to do BR/EDR inquiry. + */ + hci_req_sync(hdev, interleaved_discov, + DISCOV_LE_SCAN_INT * 2, HCI_CMD_TIMEOUT, + status); + break; + } + + timeout = msecs_to_jiffies(hdev->discov_interleaved_timeout); + hci_req_sync(hdev, active_scan, DISCOV_LE_SCAN_INT, + HCI_CMD_TIMEOUT, status); + break; + case DISCOV_TYPE_LE: + timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT); + hci_req_sync(hdev, active_scan, DISCOV_LE_SCAN_INT, + HCI_CMD_TIMEOUT, status); + break; + default: + *status = HCI_ERROR_UNSPECIFIED; + return; + } + + if (*status) + return; + + BT_DBG("%s timeout %u ms", hdev->name, jiffies_to_msecs(timeout)); + + /* When service discovery is used and the controller has a + * strict duplicate filter, it is important to remember the + * start and duration of the scan. This is required for + * restarting scanning during the discovery phase. + */ + if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks) && + hdev->discovery.result_filtering) { + hdev->discovery.scan_start = jiffies; + hdev->discovery.scan_duration = timeout; + } + + queue_delayed_work(hdev->req_workqueue, &hdev->le_scan_disable, + timeout); +} + +static void discov_update(struct work_struct *work) +{ + struct hci_dev *hdev = container_of(work, struct hci_dev, + discov_update); + u8 status = 0; + + switch (hdev->discovery.state) { + case DISCOVERY_STARTING: + start_discovery(hdev, &status); + mgmt_start_discovery_complete(hdev, status); + if (status) + hci_discovery_set_state(hdev, DISCOVERY_STOPPED); + else + hci_discovery_set_state(hdev, DISCOVERY_FINDING); + break; + case DISCOVERY_STOPPED: + default: + return; + } +} + void hci_request_setup(struct hci_dev *hdev) { + INIT_WORK(&hdev->discov_update, discov_update); INIT_WORK(&hdev->bg_scan_update, bg_scan_update); INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable_work); INIT_DELAYED_WORK(&hdev->le_scan_restart, le_scan_restart_work); @@ -1051,6 +1252,7 @@ void hci_request_setup(struct hci_dev *hdev) void hci_request_cancel_all(struct hci_dev *hdev) { + cancel_work_sync(&hdev->discov_update); cancel_work_sync(&hdev->bg_scan_update); cancel_delayed_work_sync(&hdev->le_scan_disable); cancel_delayed_work_sync(&hdev->le_scan_restart); diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index e634b4d85249..63b099471c92 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -4164,145 +4164,9 @@ done: return err; } -static bool trigger_bredr_inquiry(struct hci_request *req, u8 *status) -{ - struct hci_dev *hdev = req->hdev; - struct hci_cp_inquiry cp; - /* General inquiry access code (GIAC) */ - u8 lap[3] = { 0x33, 0x8b, 0x9e }; - - *status = mgmt_bredr_support(hdev); - if (*status) - return false; - - if (hci_dev_test_flag(hdev, HCI_INQUIRY)) { - *status = MGMT_STATUS_BUSY; - return false; - } - - hci_inquiry_cache_flush(hdev); - - memset(&cp, 0, sizeof(cp)); - memcpy(&cp.lap, lap, sizeof(cp.lap)); - cp.length = DISCOV_BREDR_INQUIRY_LEN; - - hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp); - - return true; -} - -static bool trigger_le_scan(struct hci_request *req, u16 interval, u8 *status) -{ - struct hci_dev *hdev = req->hdev; - struct hci_cp_le_set_scan_param param_cp; - struct hci_cp_le_set_scan_enable enable_cp; - u8 own_addr_type; - int err; - - *status = mgmt_le_support(hdev); - if (*status) - return false; - - if (hci_dev_test_flag(hdev, HCI_LE_ADV)) { - /* Don't let discovery abort an outgoing connection attempt - * that's using directed advertising. - */ - if (hci_lookup_le_connect(hdev)) { - *status = MGMT_STATUS_REJECTED; - return false; - } - - cancel_adv_timeout(hdev); - disable_advertising(req); - } - - /* If controller is scanning, it means the background scanning is - * running. Thus, we should temporarily stop it in order to set the - * discovery scanning parameters. - */ - if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) - hci_req_add_le_scan_disable(req); - - /* All active scans will be done with either a resolvable private - * address (when privacy feature has been enabled) or non-resolvable - * private address. - */ - err = hci_update_random_address(req, true, &own_addr_type); - if (err < 0) { - *status = MGMT_STATUS_FAILED; - return false; - } - - memset(¶m_cp, 0, sizeof(param_cp)); - param_cp.type = LE_SCAN_ACTIVE; - param_cp.interval = cpu_to_le16(interval); - param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN); - param_cp.own_address_type = own_addr_type; - - hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp), - ¶m_cp); - - memset(&enable_cp, 0, sizeof(enable_cp)); - enable_cp.enable = LE_SCAN_ENABLE; - enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE; - - hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp), - &enable_cp); - - return true; -} - -static bool trigger_discovery(struct hci_request *req, u8 *status) -{ - struct hci_dev *hdev = req->hdev; - - switch (hdev->discovery.type) { - case DISCOV_TYPE_BREDR: - if (!trigger_bredr_inquiry(req, status)) - return false; - break; - - case DISCOV_TYPE_INTERLEAVED: - if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, - &hdev->quirks)) { - /* During simultaneous discovery, we double LE scan - * interval. We must leave some time for the controller - * to do BR/EDR inquiry. - */ - if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT * 2, - status)) - return false; - - if (!trigger_bredr_inquiry(req, status)) - return false; - - return true; - } - - if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) { - *status = MGMT_STATUS_NOT_SUPPORTED; - return false; - } - /* fall through */ - - case DISCOV_TYPE_LE: - if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT, status)) - return false; - break; - - default: - *status = MGMT_STATUS_INVALID_PARAMS; - return false; - } - - return true; -} - -static void start_discovery_complete(struct hci_dev *hdev, u8 status, - u16 opcode) +void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status) { struct mgmt_pending_cmd *cmd; - unsigned long timeout; BT_DBG("status %d", status); @@ -4317,61 +4181,6 @@ static void start_discovery_complete(struct hci_dev *hdev, u8 status, mgmt_pending_remove(cmd); } - if (status) { - hci_discovery_set_state(hdev, DISCOVERY_STOPPED); - goto unlock; - } - - hci_discovery_set_state(hdev, DISCOVERY_FINDING); - - /* If the scan involves LE scan, pick proper timeout to schedule - * hdev->le_scan_disable that will stop it. - */ - switch (hdev->discovery.type) { - case DISCOV_TYPE_LE: - timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT); - break; - case DISCOV_TYPE_INTERLEAVED: - /* When running simultaneous discovery, the LE scanning time - * should occupy the whole discovery time sine BR/EDR inquiry - * and LE scanning are scheduled by the controller. - * - * For interleaving discovery in comparison, BR/EDR inquiry - * and LE scanning are done sequentially with separate - * timeouts. - */ - if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks)) - timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT); - else - timeout = msecs_to_jiffies(hdev->discov_interleaved_timeout); - break; - case DISCOV_TYPE_BREDR: - timeout = 0; - break; - default: - BT_ERR("Invalid discovery type %d", hdev->discovery.type); - timeout = 0; - break; - } - - if (timeout) { - /* When service discovery is used and the controller has - * a strict duplicate filter, it is important to remember - * the start and duration of the scan. This is required - * for restarting scanning during the discovery phase. - */ - if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, - &hdev->quirks) && - hdev->discovery.result_filtering) { - hdev->discovery.scan_start = jiffies; - hdev->discovery.scan_duration = timeout; - } - - queue_delayed_work(hdev->req_workqueue, - &hdev->le_scan_disable, timeout); - } - -unlock: hci_dev_unlock(hdev); } @@ -4407,7 +4216,6 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev, { struct mgmt_cp_start_discovery *cp = data; struct mgmt_pending_cmd *cmd; - struct hci_request req; u8 status; int err; @@ -4436,14 +4244,6 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev, goto failed; } - cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, data, len); - if (!cmd) { - err = -ENOMEM; - goto failed; - } - - cmd->cmd_complete = generic_cmd_complete; - /* Clear the discovery filter first to free any previously * allocated memory for the UUID list. */ @@ -4452,22 +4252,17 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev, hdev->discovery.type = cp->type; hdev->discovery.report_invalid_rssi = false; - hci_req_init(&req, hdev); - - if (!trigger_discovery(&req, &status)) { - err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY, - status, &cp->type, sizeof(cp->type)); - mgmt_pending_remove(cmd); + cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, data, len); + if (!cmd) { + err = -ENOMEM; goto failed; } - err = hci_req_run(&req, start_discovery_complete); - if (err < 0) { - mgmt_pending_remove(cmd); - goto failed; - } + cmd->cmd_complete = generic_cmd_complete; hci_discovery_set_state(hdev, DISCOVERY_STARTING); + queue_work(hdev->req_workqueue, &hdev->discov_update); + err = 0; failed: hci_dev_unlock(hdev); @@ -4486,7 +4281,6 @@ static int start_service_discovery(struct sock *sk, struct hci_dev *hdev, { struct mgmt_cp_start_service_discovery *cp = data; struct mgmt_pending_cmd *cmd; - struct hci_request req; const u16 max_uuid_count = ((U16_MAX - sizeof(*cp)) / 16); u16 uuid_count, expected_len; u8 status; @@ -4574,23 +4368,9 @@ static int start_service_discovery(struct sock *sk, struct hci_dev *hdev, } } - hci_req_init(&req, hdev); - - if (!trigger_discovery(&req, &status)) { - err = mgmt_cmd_complete(sk, hdev->id, - MGMT_OP_START_SERVICE_DISCOVERY, - status, &cp->type, sizeof(cp->type)); - mgmt_pending_remove(cmd); - goto failed; - } - - err = hci_req_run(&req, start_discovery_complete); - if (err < 0) { - mgmt_pending_remove(cmd); - goto failed; - } - hci_discovery_set_state(hdev, DISCOVERY_STARTING); + queue_work(hdev->req_workqueue, &hdev->discov_update); + err = 0; failed: hci_dev_unlock(hdev); -- cgit v1.2.3-71-gd317 From 2154d3f4fb83c812a161c4910948dd876997e111 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 11 Nov 2015 08:30:45 +0200 Subject: Bluetooth: Move Stop Discovery to req_workqueue Since discovery also deals with LE scanning it makes sense to move it behind the same req_workqueue as other LE scanning changes. This also simplifies the logic since we do many of the actions in a synchronous manner. Part of this refactoring is moving hci_req_stop_discovery() to hci_request.c. At the same time the function receives support for properly handling the STOPPING state since that's the state we'll be in when stopping through the req_workqueue. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci_core.h | 1 + net/bluetooth/hci_request.c | 62 ++++++++++++++++++++++++++++++++++ net/bluetooth/hci_request.h | 3 ++ net/bluetooth/mgmt.c | 72 +++------------------------------------- 4 files changed, 71 insertions(+), 67 deletions(-) (limited to 'include') diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 72ea8a6d7d70..609f4a03899c 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1475,6 +1475,7 @@ void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, u8 status); void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); +void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index da1e30b85e77..3219ee66faad 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -1221,6 +1221,62 @@ static void start_discovery(struct hci_dev *hdev, u8 *status) timeout); } +bool hci_req_stop_discovery(struct hci_request *req) +{ + struct hci_dev *hdev = req->hdev; + struct discovery_state *d = &hdev->discovery; + struct hci_cp_remote_name_req_cancel cp; + struct inquiry_entry *e; + bool ret = false; + + BT_DBG("%s state %u", hdev->name, hdev->discovery.state); + + if (d->state == DISCOVERY_FINDING || d->state == DISCOVERY_STOPPING) { + if (test_bit(HCI_INQUIRY, &hdev->flags)) + hci_req_add(req, HCI_OP_INQUIRY_CANCEL, 0, NULL); + + if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) { + cancel_delayed_work(&hdev->le_scan_disable); + hci_req_add_le_scan_disable(req); + } + + ret = true; + } else { + /* Passive scanning */ + if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) { + hci_req_add_le_scan_disable(req); + ret = true; + } + } + + /* No further actions needed for LE-only discovery */ + if (d->type == DISCOV_TYPE_LE) + return ret; + + if (d->state == DISCOVERY_RESOLVING || d->state == DISCOVERY_STOPPING) { + e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, + NAME_PENDING); + if (!e) + return ret; + + bacpy(&cp.bdaddr, &e->data.bdaddr); + hci_req_add(req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp), + &cp); + ret = true; + } + + return ret; +} + +static int stop_discovery(struct hci_request *req, unsigned long opt) +{ + hci_dev_lock(req->hdev); + hci_req_stop_discovery(req); + hci_dev_unlock(req->hdev); + + return 0; +} + static void discov_update(struct work_struct *work) { struct hci_dev *hdev = container_of(work, struct hci_dev, @@ -1236,6 +1292,12 @@ static void discov_update(struct work_struct *work) else hci_discovery_set_state(hdev, DISCOVERY_FINDING); break; + case DISCOVERY_STOPPING: + hci_req_sync(hdev, stop_discovery, 0, HCI_CMD_TIMEOUT, &status); + mgmt_stop_discovery_complete(hdev, status); + if (!status) + hci_discovery_set_state(hdev, DISCOVERY_STOPPED); + break; case DISCOVERY_STOPPED: default: return; diff --git a/net/bluetooth/hci_request.h b/net/bluetooth/hci_request.h index 1927013f5e67..6b9e59f7f7a9 100644 --- a/net/bluetooth/hci_request.h +++ b/net/bluetooth/hci_request.h @@ -58,6 +58,9 @@ struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen, void hci_req_add_le_scan_disable(struct hci_request *req); void hci_req_add_le_passive_scan(struct hci_request *req); +/* Returns true if HCI commands were queued */ +bool hci_req_stop_discovery(struct hci_request *req); + void hci_update_page_scan(struct hci_dev *hdev); void __hci_update_page_scan(struct hci_request *req); diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 63b099471c92..8cdacef6b108 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -1416,49 +1416,6 @@ static void clean_up_hci_complete(struct hci_dev *hdev, u8 status, u16 opcode) } } -static bool hci_stop_discovery(struct hci_request *req) -{ - struct hci_dev *hdev = req->hdev; - struct hci_cp_remote_name_req_cancel cp; - struct inquiry_entry *e; - - switch (hdev->discovery.state) { - case DISCOVERY_FINDING: - if (test_bit(HCI_INQUIRY, &hdev->flags)) - hci_req_add(req, HCI_OP_INQUIRY_CANCEL, 0, NULL); - - if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) { - cancel_delayed_work(&hdev->le_scan_disable); - hci_req_add_le_scan_disable(req); - } - - return true; - - case DISCOVERY_RESOLVING: - e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, - NAME_PENDING); - if (!e) - break; - - bacpy(&cp.bdaddr, &e->data.bdaddr); - hci_req_add(req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp), - &cp); - - return true; - - default: - /* Passive scanning */ - if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) { - hci_req_add_le_scan_disable(req); - return true; - } - - break; - } - - return false; -} - static void advertising_added(struct sock *sk, struct hci_dev *hdev, u8 instance) { @@ -1636,7 +1593,7 @@ static int clean_up_hci_state(struct hci_dev *hdev) if (hci_dev_test_flag(hdev, HCI_LE_ADV)) disable_advertising(&req); - discov_stopped = hci_stop_discovery(&req); + discov_stopped = hci_req_stop_discovery(&req); list_for_each_entry(conn, &hdev->conn_hash.list, list) { /* 0x15 == Terminated due to Power Off */ @@ -4377,7 +4334,7 @@ failed: return err; } -static void stop_discovery_complete(struct hci_dev *hdev, u8 status, u16 opcode) +void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status) { struct mgmt_pending_cmd *cmd; @@ -4391,9 +4348,6 @@ static void stop_discovery_complete(struct hci_dev *hdev, u8 status, u16 opcode) mgmt_pending_remove(cmd); } - if (!status) - hci_discovery_set_state(hdev, DISCOVERY_STOPPED); - hci_dev_unlock(hdev); } @@ -4402,7 +4356,6 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data, { struct mgmt_cp_stop_discovery *mgmt_cp = data; struct mgmt_pending_cmd *cmd; - struct hci_request req; int err; BT_DBG("%s", hdev->name); @@ -4431,24 +4384,9 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data, cmd->cmd_complete = generic_cmd_complete; - hci_req_init(&req, hdev); - - hci_stop_discovery(&req); - - err = hci_req_run(&req, stop_discovery_complete); - if (!err) { - hci_discovery_set_state(hdev, DISCOVERY_STOPPING); - goto unlock; - } - - mgmt_pending_remove(cmd); - - /* If no HCI commands were sent we're done */ - if (err == -ENODATA) { - err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, 0, - &mgmt_cp->type, sizeof(mgmt_cp->type)); - hci_discovery_set_state(hdev, DISCOVERY_STOPPED); - } + hci_discovery_set_state(hdev, DISCOVERY_STOPPING); + queue_work(hdev->req_workqueue, &hdev->discov_update); + err = 0; unlock: hci_dev_unlock(hdev); -- cgit v1.2.3-71-gd317 From 0ad06aa6a7682319bb1adcc187a1fa8db6b2da2c Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 11 Nov 2015 14:44:57 +0200 Subject: Bluetooth: Fix specifying role for LE connections The hci_connect_le_scan() is (as the name implies) a master/central role API, so it makes no sense in passing a role parameter to it. At the same time this patch also fixes the direct advertising support for LE L2CAP sockets where we now call the more appropriate hci_le_connect() API if slave/peripheral role is desired. Signed-off-by: Johan Hedberg Signed-off-by: Marcel Holtmann --- include/net/bluetooth/hci_core.h | 2 +- net/bluetooth/hci_conn.c | 4 ++-- net/bluetooth/l2cap_core.c | 15 +++++++-------- net/bluetooth/mgmt.c | 3 +-- 4 files changed, 11 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 609f4a03899c..55ce209157b1 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -877,7 +877,7 @@ struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, u8 dst_type, u8 sec_level, - u16 conn_timeout, u8 role); + u16 conn_timeout); struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, u8 dst_type, u8 sec_level, u16 conn_timeout, u8 role); diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 1ed1e153b3fa..673c2254935b 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -988,7 +988,7 @@ static int hci_explicit_conn_params_set(struct hci_dev *hdev, /* This function requires the caller holds hdev->lock */ struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, u8 dst_type, u8 sec_level, - u16 conn_timeout, u8 role) + u16 conn_timeout) { struct hci_conn *conn; @@ -1018,7 +1018,7 @@ struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, BT_DBG("requesting refresh of dst_addr"); - conn = hci_conn_add(hdev, LE_LINK, dst, role); + conn = hci_conn_add(hdev, LE_LINK, dst, HCI_ROLE_MASTER); if (!conn) return ERR_PTR(-ENOMEM); diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 66e8b6ee19a5..139da8106b04 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -7113,8 +7113,6 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, chan->dcid = cid; if (bdaddr_type_is_le(dst_type)) { - u8 role; - /* Convert from L2CAP channel address type to HCI address type */ if (dst_type == BDADDR_LE_PUBLIC) @@ -7123,14 +7121,15 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, dst_type = ADDR_LE_DEV_RANDOM; if (hci_dev_test_flag(hdev, HCI_ADVERTISING)) - role = HCI_ROLE_SLAVE; + hcon = hci_connect_le(hdev, dst, dst_type, + chan->sec_level, + HCI_LE_CONN_TIMEOUT, + HCI_ROLE_SLAVE); else - role = HCI_ROLE_MASTER; + hcon = hci_connect_le_scan(hdev, dst, dst_type, + chan->sec_level, + HCI_LE_CONN_TIMEOUT); - hcon = hci_connect_le_scan(hdev, dst, dst_type, - chan->sec_level, - HCI_LE_CONN_TIMEOUT, - role); } else { u8 auth_type = l2cap_get_auth_type(chan); hcon = hci_connect_acl(hdev, dst, chan->sec_level, auth_type); diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index e4ad0457547a..eca203e891d2 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -3518,8 +3518,7 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, conn = hci_connect_le_scan(hdev, &cp->addr.bdaddr, addr_type, sec_level, - HCI_LE_CONN_TIMEOUT, - HCI_ROLE_MASTER); + HCI_LE_CONN_TIMEOUT); } if (IS_ERR(conn)) { -- cgit v1.2.3-71-gd317 From ac0621971a26526cad8cf9db7626d5e50562a441 Mon Sep 17 00:00:00 2001 From: Gregory Greenman Date: Tue, 17 Nov 2015 10:24:38 +0200 Subject: mac80211: always set the buf_size in AddBA req to 64 Advertising reordering window in ADDBA less than 64 can crash some APs, an example is LinkSys WRT120N (with FW v1.0.07 build 002 Jun 18 2012). On the other hand, a driver may need to limit Tx A-MPDU size for its own reasons, like specific HW limitations. Signed-off-by: Gregory Greenman Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg --- include/net/mac80211.h | 6 ++++-- net/mac80211/agg-tx.c | 3 ++- 2 files changed, 6 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 82045fca388b..760bc4d5a2cf 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -2003,8 +2003,10 @@ enum ieee80211_hw_flags { * it shouldn't be set. * * @max_tx_aggregation_subframes: maximum number of subframes in an - * aggregate an HT driver will transmit, used by the peer as a - * hint to size its reorder buffer. + * aggregate an HT driver will transmit. Though ADDBA will advertise + * a constant value of 64 as some older APs can crash if the window + * size is smaller (an example is LinkSys WRT120N with FW v1.0.07 + * build 002 Jun 18 2012). * * @offchannel_tx_hw_queue: HW queue ID to use for offchannel TX * (if %IEEE80211_HW_QUEUE_CONTROL is set) diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index a758eb84e8f0..ff757181b0a8 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -500,7 +500,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) /* send AddBA request */ ieee80211_send_addba_request(sdata, sta->sta.addr, tid, tid_tx->dialog_token, start_seq_num, - local->hw.max_tx_aggregation_subframes, + IEEE80211_MAX_AMPDU_BUF, tid_tx->timeout); } @@ -926,6 +926,7 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, amsdu = capab & IEEE80211_ADDBA_PARAM_AMSDU_MASK; tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6; + buf_size = min(buf_size, local->hw.max_tx_aggregation_subframes); mutex_lock(&sta->ampdu_mlme.mtx); -- cgit v1.2.3-71-gd317 From a8acce6aa584aa731a2bed240bcd8dc955f01414 Mon Sep 17 00:00:00 2001 From: Guillaume Nault Date: Thu, 19 Nov 2015 12:53:21 +0100 Subject: ppp: remove PPPOX_ZOMBIE socket state PPPOX_ZOMBIE is never set anymore. Signed-off-by: Guillaume Nault Signed-off-by: David S. Miller --- drivers/net/ppp/pppoe.c | 4 ++-- drivers/net/ppp/pppox.c | 2 +- include/linux/if_pppox.h | 1 - 3 files changed, 3 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index 1dedfbf1d423..277e6827d7cd 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -311,7 +311,7 @@ static void pppoe_flush_dev(struct net_device *dev) lock_sock(sk); if (po->pppoe_dev == dev && - sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) { + sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND)) { pppox_unbind_sock(sk); sk->sk_state_change(sk); po->pppoe_dev = NULL; @@ -775,7 +775,7 @@ static int pppoe_ioctl(struct socket *sock, unsigned int cmd, struct pppox_sock *relay_po; err = -EBUSY; - if (sk->sk_state & (PPPOX_BOUND | PPPOX_ZOMBIE | PPPOX_DEAD)) + if (sk->sk_state & (PPPOX_BOUND | PPPOX_DEAD)) break; err = -ENOTCONN; diff --git a/drivers/net/ppp/pppox.c b/drivers/net/ppp/pppox.c index 0e1b30622477..0200de74eebc 100644 --- a/drivers/net/ppp/pppox.c +++ b/drivers/net/ppp/pppox.c @@ -58,7 +58,7 @@ void pppox_unbind_sock(struct sock *sk) { /* Clear connection to ppp device, if attached. */ - if (sk->sk_state & (PPPOX_BOUND | PPPOX_CONNECTED | PPPOX_ZOMBIE)) { + if (sk->sk_state & (PPPOX_BOUND | PPPOX_CONNECTED)) { ppp_unregister_channel(&pppox_sk(sk)->chan); sk->sk_state = PPPOX_DEAD; } diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h index b49cf923becc..ba7a9b0c7c57 100644 --- a/include/linux/if_pppox.h +++ b/include/linux/if_pppox.h @@ -91,7 +91,6 @@ enum { PPPOX_CONNECTED = 1, /* connection established ==TCP_ESTABLISHED */ PPPOX_BOUND = 2, /* bound to ppp device */ PPPOX_RELAY = 4, /* forwarding is enabled */ - PPPOX_ZOMBIE = 8, /* dead, but still bound to ppp device */ PPPOX_DEAD = 16 /* dead, useless, please clean me up!*/ }; -- cgit v1.2.3-71-gd317 From 40b25fe5dc57a6557b96241b75ae63dce716a487 Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Thu, 19 Nov 2015 16:16:43 +0100 Subject: Bluetooth: Add support for Get Advertising Size Information command The Get Advertising Size Information command allows to retrieve size information for advertising data and scan response data fields depending on the selected flags. This is useful if applications want to know the available size ahead of time. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- include/net/bluetooth/mgmt.h | 13 ++++++++++ net/bluetooth/mgmt.c | 58 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 71 insertions(+) (limited to 'include') diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h index b831242d48a4..af17774c9416 100644 --- a/include/net/bluetooth/mgmt.h +++ b/include/net/bluetooth/mgmt.h @@ -571,6 +571,19 @@ struct mgmt_rp_remove_advertising { __u8 instance; } __packed; +#define MGMT_OP_GET_ADV_SIZE_INFO 0x0040 +struct mgmt_cp_get_adv_size_info { + __u8 instance; + __le32 flags; +} __packed; +#define MGMT_GET_ADV_SIZE_INFO_SIZE 5 +struct mgmt_rp_get_adv_size_info { + __u8 instance; + __le32 flags; + __u8 max_adv_data_len; + __u8 max_scan_rsp_len; +} __packed; + #define MGMT_EV_CMD_COMPLETE 0x0001 struct mgmt_ev_cmd_complete { __le16 opcode; diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 05370e76feb0..dc8e428050d9 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -102,6 +102,7 @@ static const u16 mgmt_commands[] = { MGMT_OP_READ_ADV_FEATURES, MGMT_OP_ADD_ADVERTISING, MGMT_OP_REMOVE_ADVERTISING, + MGMT_OP_GET_ADV_SIZE_INFO, }; static const u16 mgmt_events[] = { @@ -7059,6 +7060,62 @@ unlock: return err; } +static u8 tlv_data_max_len(u32 adv_flags, bool is_adv_data) +{ + u8 max_len = HCI_MAX_AD_LENGTH; + + if (is_adv_data) { + if (adv_flags & (MGMT_ADV_FLAG_DISCOV | + MGMT_ADV_FLAG_LIMITED_DISCOV | + MGMT_ADV_FLAG_MANAGED_FLAGS)) + max_len -= 3; + + if (adv_flags & MGMT_ADV_FLAG_TX_POWER) + max_len -= 3; + } + + return max_len; +} + +static int get_adv_size_info(struct sock *sk, struct hci_dev *hdev, + void *data, u16 data_len) +{ + struct mgmt_cp_get_adv_size_info *cp = data; + struct mgmt_rp_get_adv_size_info rp; + u32 flags, supported_flags; + int err; + + BT_DBG("%s", hdev->name); + + if (!lmp_le_capable(hdev)) + return mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO, + MGMT_STATUS_REJECTED); + + if (cp->instance < 1 || cp->instance > HCI_MAX_ADV_INSTANCES) + return mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO, + MGMT_STATUS_INVALID_PARAMS); + + flags = __le32_to_cpu(cp->flags); + + /* The current implementation only supports a subset of the specified + * flags. + */ + supported_flags = get_supported_adv_flags(hdev); + if (flags & ~supported_flags) + return mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO, + MGMT_STATUS_INVALID_PARAMS); + + rp.instance = cp->instance; + rp.flags = cp->flags; + rp.max_adv_data_len = tlv_data_max_len(flags, true); + rp.max_scan_rsp_len = tlv_data_max_len(flags, false); + + err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO, + MGMT_STATUS_SUCCESS, &rp, sizeof(rp)); + + return err; +} + static const struct hci_mgmt_handler mgmt_handlers[] = { { NULL }, /* 0x0000 (no command) */ { read_version, MGMT_READ_VERSION_SIZE, @@ -7146,6 +7203,7 @@ static const struct hci_mgmt_handler mgmt_handlers[] = { { add_advertising, MGMT_ADD_ADVERTISING_SIZE, HCI_MGMT_VAR_LEN }, { remove_advertising, MGMT_REMOVE_ADVERTISING_SIZE }, + { get_adv_size_info, MGMT_GET_ADV_SIZE_INFO_SIZE }, }; void mgmt_index_added(struct hci_dev *hdev) -- cgit v1.2.3-71-gd317 From b811580d91e9c0945b0a923dcec3e10cce04ac30 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Thu, 19 Nov 2015 12:24:22 -0800 Subject: net: IPv6 fib lookup tracepoint Add tracepoint to show fib6 table lookups and result. Signed-off-by: David Ahern Signed-off-by: David S. Miller --- include/trace/events/fib6.h | 76 +++++++++++++++++++++++++++++++++++++++++++++ net/core/net-traces.c | 4 +++ net/ipv6/route.c | 10 ++++++ 3 files changed, 90 insertions(+) create mode 100644 include/trace/events/fib6.h (limited to 'include') diff --git a/include/trace/events/fib6.h b/include/trace/events/fib6.h new file mode 100644 index 000000000000..4cf6bac4686d --- /dev/null +++ b/include/trace/events/fib6.h @@ -0,0 +1,76 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM fib6 + +#if !defined(_TRACE_FIB6_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_FIB6_H + +#include +#include +#include +#include + +TRACE_EVENT(fib6_table_lookup, + + TP_PROTO(const struct net *net, const struct rt6_info *rt, + u32 tb_id, const struct flowi6 *flp), + + TP_ARGS(net, rt, tb_id, flp), + + TP_STRUCT__entry( + __field( u32, tb_id ) + + __field( int, oif ) + __field( int, iif ) + __field( __u8, tos ) + __field( __u8, scope ) + __field( __u8, flags ) + __array( __u8, src, 16 ) + __array( __u8, dst, 16 ) + + __dynamic_array( char, name, IFNAMSIZ ) + __array( __u8, gw, 16 ) + ), + + TP_fast_assign( + struct in6_addr *in6; + + __entry->tb_id = tb_id; + __entry->oif = flp->flowi6_oif; + __entry->iif = flp->flowi6_iif; + __entry->tos = flp->flowi6_tos; + __entry->scope = flp->flowi6_scope; + __entry->flags = flp->flowi6_flags; + + in6 = (struct in6_addr *)__entry->src; + *in6 = flp->saddr; + + in6 = (struct in6_addr *)__entry->dst; + *in6 = flp->daddr; + + if (rt->rt6i_idev) { + __assign_str(name, rt->rt6i_idev->dev->name); + } else { + __assign_str(name, ""); + } + if (rt == net->ipv6.ip6_null_entry) { + struct in6_addr in6_zero = {}; + + in6 = (struct in6_addr *)__entry->gw; + *in6 = in6_zero; + + } else if (rt) { + in6 = (struct in6_addr *)__entry->gw; + *in6 = rt->rt6i_gateway; + } + ), + + TP_printk("table %3u oif %d iif %d src %pI6c dst %pI6c tos %d scope %d flags %x ==> dev %s gw %pI6c", + __entry->tb_id, __entry->oif, __entry->iif, + __entry->src, __entry->dst, __entry->tos, __entry->scope, + __entry->flags, __get_str(name), __entry->gw) +); + +#endif /* _TRACE_FIB6_H */ + +/* This part must be outside protection */ +#include diff --git a/net/core/net-traces.c b/net/core/net-traces.c index adef015b2f41..92da5e4ceb4f 100644 --- a/net/core/net-traces.c +++ b/net/core/net-traces.c @@ -32,6 +32,10 @@ #include #include #include +#if IS_ENABLED(CONFIG_IPV6) +#include +EXPORT_TRACEPOINT_SYMBOL_GPL(fib6_table_lookup); +#endif EXPORT_TRACEPOINT_SYMBOL_GPL(kfree_skb); diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 6f01fe122abd..89758be9c6a6 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -62,6 +62,7 @@ #include #include #include +#include #include @@ -865,6 +866,9 @@ restart: } dst_use(&rt->dst, jiffies); read_unlock_bh(&table->tb6_lock); + + trace_fib6_table_lookup(net, rt, table->tb6_id, fl6); + return rt; } @@ -1078,6 +1082,8 @@ redo_rt6_select: read_unlock_bh(&table->tb6_lock); rt6_dst_from_metrics_check(rt); + + trace_fib6_table_lookup(net, rt, table->tb6_id, fl6); return rt; } else if (unlikely((fl6->flowi6_flags & FLOWI_FLAG_KNOWN_NH) && !(rt->rt6i_flags & RTF_GATEWAY))) { @@ -1101,6 +1107,8 @@ redo_rt6_select: uncached_rt = net->ipv6.ip6_null_entry; dst_hold(&uncached_rt->dst); + + trace_fib6_table_lookup(net, uncached_rt, table->tb6_id, fl6); return uncached_rt; } else { @@ -1125,6 +1133,7 @@ redo_rt6_select: dst_release(&rt->dst); } + trace_fib6_table_lookup(net, pcpu_rt, table->tb6_id, fl6); return pcpu_rt; } @@ -1474,6 +1483,7 @@ out: read_unlock_bh(&table->tb6_lock); + trace_fib6_table_lookup(net, rt, table->tb6_id, fl6); return rt; }; -- cgit v1.2.3-71-gd317 From cc30c16344fc3a25153175c7eb9037b2136cd466 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Fri, 20 Nov 2015 03:56:23 +0100 Subject: net: dsa: Add support for a switch reset gpio Some boards have a gpio line tied to the switch reset pin. Allow this gpio to be retrieved from the device tree, and take the switch out of reset before performing the probe. Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/dsa/dsa.txt | 3 +++ include/net/dsa.h | 8 ++++++++ net/dsa/dsa.c | 17 +++++++++++++++++ 3 files changed, 28 insertions(+) (limited to 'include') diff --git a/Documentation/devicetree/bindings/net/dsa/dsa.txt b/Documentation/devicetree/bindings/net/dsa/dsa.txt index 04e6bef3ac3f..5fdbbcdf8c4b 100644 --- a/Documentation/devicetree/bindings/net/dsa/dsa.txt +++ b/Documentation/devicetree/bindings/net/dsa/dsa.txt @@ -31,6 +31,8 @@ A switch child node has the following optional property: switch. Must be set if the switch can not detect the presence and/or size of a connected EEPROM, otherwise optional. +- reset-gpios : phandle and specifier to a gpio line connected to + reset pin of the switch chip. A switch may have multiple "port" children nodes @@ -114,6 +116,7 @@ Example: #size-cells = <0>; reg = <17 1>; /* MDIO address 17, switch 1 in tree */ mii-bus = <&mii_bus1>; + reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>; switch1port0: port@0 { reg = <0>; diff --git a/include/net/dsa.h b/include/net/dsa.h index 82a4c6011173..3f23dd9d6a69 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -64,6 +65,13 @@ struct dsa_chip_data { * NULL if there is only one switch chip. */ s8 *rtable; + + /* + * A switch may have a GPIO line tied to its reset pin. Parse + * this from the device tree, and use it before performing + * switch soft reset. + */ + struct gpio_desc *reset; }; struct dsa_platform_data { diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index 1eba07feb34a..0b5565f923cc 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include "dsa_priv.h" @@ -688,6 +689,9 @@ static int dsa_of_probe(struct device *dev) const char *port_name; int chip_index, port_index; const unsigned int *sw_addr, *port_reg; + int gpio; + enum of_gpio_flags of_flags; + unsigned long flags; u32 eeprom_len; int ret; @@ -766,6 +770,19 @@ static int dsa_of_probe(struct device *dev) put_device(cd->host_dev); cd->host_dev = &mdio_bus_switch->dev; } + gpio = of_get_named_gpio_flags(child, "reset-gpios", 0, + &of_flags); + if (gpio_is_valid(gpio)) { + flags = (of_flags == OF_GPIO_ACTIVE_LOW ? + GPIOF_ACTIVE_LOW : 0); + ret = devm_gpio_request_one(dev, gpio, flags, + "switch_reset"); + if (ret) + goto out_free_chip; + + cd->reset = gpio_to_desc(gpio); + gpiod_direction_output(cd->reset, 0); + } for_each_available_child_of_node(child, port) { port_reg = of_get_property(port, "reg", NULL); -- cgit v1.2.3-71-gd317 From 7ef8f65df976369588fa1b6466668b1b6a26eb3c Mon Sep 17 00:00:00 2001 From: Nikolay Aleksandrov Date: Sat, 21 Nov 2015 15:57:27 +0100 Subject: net: ipmr: fix code and comment style Trivial code and comment style fixes, also removed some extra newlines, spaces and tabs. Signed-off-by: Nikolay Aleksandrov Signed-off-by: David S. Miller --- include/uapi/linux/mroute.h | 59 ++++++------------ net/ipv4/ipmr.c | 142 ++++++++++++-------------------------------- 2 files changed, 54 insertions(+), 147 deletions(-) (limited to 'include') diff --git a/include/uapi/linux/mroute.h b/include/uapi/linux/mroute.h index a382d2c04a42..cf943016930f 100644 --- a/include/uapi/linux/mroute.h +++ b/include/uapi/linux/mroute.h @@ -4,15 +4,13 @@ #include #include -/* - * Based on the MROUTING 3.5 defines primarily to keep - * source compatibility with BSD. +/* Based on the MROUTING 3.5 defines primarily to keep + * source compatibility with BSD. * - * See the mrouted code for the original history. - * - * Protocol Independent Multicast (PIM) data structures included - * Carlos Picoto (cap@di.fc.ul.pt) + * See the mrouted code for the original history. * + * Protocol Independent Multicast (PIM) data structures included + * Carlos Picoto (cap@di.fc.ul.pt) */ #define MRT_BASE 200 @@ -34,15 +32,13 @@ #define SIOCGETSGCNT (SIOCPROTOPRIVATE+1) #define SIOCGETRPF (SIOCPROTOPRIVATE+2) -#define MAXVIFS 32 +#define MAXVIFS 32 typedef unsigned long vifbitmap_t; /* User mode code depends on this lot */ typedef unsigned short vifi_t; #define ALL_VIFS ((vifi_t)(-1)) -/* - * Same idea as select - */ - +/* Same idea as select */ + #define VIFM_SET(n,m) ((m)|=(1<<(n))) #define VIFM_CLR(n,m) ((m)&=~(1<<(n))) #define VIFM_ISSET(n,m) ((m)&(1<<(n))) @@ -50,11 +46,9 @@ typedef unsigned short vifi_t; #define VIFM_COPY(mfrom,mto) ((mto)=(mfrom)) #define VIFM_SAME(m1,m2) ((m1)==(m2)) -/* - * Passed by mrouted for an MRT_ADD_VIF - again we use the - * mrouted 3.6 structures for compatibility +/* Passed by mrouted for an MRT_ADD_VIF - again we use the + * mrouted 3.6 structures for compatibility */ - struct vifctl { vifi_t vifc_vifi; /* Index of VIF */ unsigned char vifc_flags; /* VIFF_ flags */ @@ -73,10 +67,7 @@ struct vifctl { #define VIFF_USE_IFINDEX 0x8 /* use vifc_lcl_ifindex instead of vifc_lcl_addr to find an interface */ -/* - * Cache manipulation structures for mrouted and PIMd - */ - +/* Cache manipulation structures for mrouted and PIMd */ struct mfcctl { struct in_addr mfcc_origin; /* Origin of mcast */ struct in_addr mfcc_mcastgrp; /* Group in question */ @@ -88,10 +79,7 @@ struct mfcctl { int mfcc_expire; }; -/* - * Group count retrieval for mrouted - */ - +/* Group count retrieval for mrouted */ struct sioc_sg_req { struct in_addr src; struct in_addr grp; @@ -100,10 +88,7 @@ struct sioc_sg_req { unsigned long wrong_if; }; -/* - * To get vif packet counts - */ - +/* To get vif packet counts */ struct sioc_vif_req { vifi_t vifi; /* Which iface */ unsigned long icount; /* In packets */ @@ -112,11 +97,9 @@ struct sioc_vif_req { unsigned long obytes; /* Out bytes */ }; -/* - * This is the format the mroute daemon expects to see IGMP control - * data. Magically happens to be like an IP packet as per the original +/* This is the format the mroute daemon expects to see IGMP control + * data. Magically happens to be like an IP packet as per the original */ - struct igmpmsg { __u32 unused1,unused2; unsigned char im_msgtype; /* What is this */ @@ -126,21 +109,13 @@ struct igmpmsg { struct in_addr im_src,im_dst; }; -/* - * That's all usermode folks - */ - - +/* That's all usermode folks */ #define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */ -/* - * Pseudo messages used by mrouted - */ - +/* Pseudo messages used by mrouted */ #define IGMPMSG_NOCACHE 1 /* Kern cache fill request to mrouted */ #define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */ #define IGMPMSG_WHOLEPKT 3 /* For PIM Register processing */ - #endif /* _UAPI__LINUX_MROUTE_H */ diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index e153ab7b17a1..286ede3716ee 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -102,9 +102,7 @@ static inline bool pimsm_enabled(void) static DEFINE_RWLOCK(mrt_lock); -/* - * Multicast router control variables - */ +/* Multicast router control variables */ #define VIF_EXISTS(_mrt, _idx) ((_mrt)->vif_table[_idx].dev != NULL) @@ -393,8 +391,7 @@ static void ipmr_del_tunnel(struct net_device *dev, struct vifctl *v) } } -static -struct net_device *ipmr_new_tunnel(struct net *net, struct vifctl *v) +static struct net_device *ipmr_new_tunnel(struct net *net, struct vifctl *v) { struct net_device *dev; @@ -561,8 +558,7 @@ static int __pim_rcv(struct mr_table *mrt, struct sk_buff *skb, struct iphdr *encap; encap = (struct iphdr *)(skb_transport_header(skb) + pimlen); - /* - * Check that: + /* Check that: * a. packet is really sent to a multicast group * b. packet is not a NULL-REGISTER * c. packet is not truncated @@ -603,7 +599,6 @@ static struct net_device *ipmr_reg_vif(struct net *net, struct mr_table *mrt) * vif_delete - Delete a VIF entry * @notify: Set to 1, if the caller is a notifier_call */ - static int vif_delete(struct mr_table *mrt, int vifi, int notify, struct list_head *head) { @@ -673,7 +668,6 @@ static inline void ipmr_cache_free(struct mfc_cache *c) /* Destroy an unresolved cache entry, killing queued skbs * and reporting error to netlink readers. */ - static void ipmr_destroy_unres(struct mr_table *mrt, struct mfc_cache *c) { struct net *net = read_pnet(&mrt->net); @@ -701,9 +695,7 @@ static void ipmr_destroy_unres(struct mr_table *mrt, struct mfc_cache *c) ipmr_cache_free(c); } - /* Timer process for the unresolved queue. */ - static void ipmr_expire_process(unsigned long arg) { struct mr_table *mrt = (struct mr_table *)arg; @@ -743,7 +735,6 @@ out: } /* Fill oifs list. It is called under write locked mrt_lock. */ - static void ipmr_update_thresholds(struct mr_table *mrt, struct mfc_cache *cache, unsigned char *ttls) { @@ -808,7 +799,6 @@ static int vif_add(struct net *net, struct mr_table *mrt, return err; } break; - case VIFF_USE_IFINDEX: case 0: if (vifc->vifc_flags == VIFF_USE_IFINDEX) { @@ -928,9 +918,7 @@ skip: return ipmr_cache_find_any_parent(mrt, vifi); } -/* - * Allocate a multicast cache entry - */ +/* Allocate a multicast cache entry */ static struct mfc_cache *ipmr_cache_alloc(void) { struct mfc_cache *c = kmem_cache_zalloc(mrt_cachep, GFP_KERNEL); @@ -951,10 +939,7 @@ static struct mfc_cache *ipmr_cache_alloc_unres(void) return c; } -/* - * A cache entry has gone into a resolved state from queued - */ - +/* A cache entry has gone into a resolved state from queued */ static void ipmr_cache_resolve(struct net *net, struct mr_table *mrt, struct mfc_cache *uc, struct mfc_cache *c) { @@ -962,7 +947,6 @@ static void ipmr_cache_resolve(struct net *net, struct mr_table *mrt, struct nlmsgerr *e; /* Play the pending entries through our router */ - while ((skb = __skb_dequeue(&uc->mfc_un.unres.unresolved))) { if (ip_hdr(skb)->version == 0) { struct nlmsghdr *nlh = (struct nlmsghdr *)skb_pull(skb, sizeof(struct iphdr)); @@ -1064,12 +1048,9 @@ static int ipmr_cache_report(struct mr_table *mrt, return ret; } -/* - * Queue a packet for resolution. It gets locked cache entry! - */ - -static int -ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi, struct sk_buff *skb) +/* Queue a packet for resolution. It gets locked cache entry! */ +static int ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi, + struct sk_buff *skb) { bool found = false; int err; @@ -1087,7 +1068,6 @@ ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi, struct sk_buff *skb) if (!found) { /* Create a new entry if allowable */ - if (atomic_read(&mrt->cache_resolve_queue_len) >= 10 || (c = ipmr_cache_alloc_unres()) == NULL) { spin_unlock_bh(&mfc_unres_lock); @@ -1097,13 +1077,11 @@ ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi, struct sk_buff *skb) } /* Fill in the new cache entry */ - c->mfc_parent = -1; c->mfc_origin = iph->saddr; c->mfc_mcastgrp = iph->daddr; /* Reflect first query at mrouted. */ - err = ipmr_cache_report(mrt, skb, vifi, IGMPMSG_NOCACHE); if (err < 0) { /* If the report failed throw the cache entry @@ -1125,7 +1103,6 @@ ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi, struct sk_buff *skb) } /* See if we can append the packet */ - if (c->mfc_un.unres.unresolved.qlen > 3) { kfree_skb(skb); err = -ENOBUFS; @@ -1138,9 +1115,7 @@ ipmr_cache_unresolved(struct mr_table *mrt, vifi_t vifi, struct sk_buff *skb) return err; } -/* - * MFC cache manipulation by user space mroute daemon - */ +/* MFC cache manipulation by user space mroute daemon */ static int ipmr_mfc_delete(struct mr_table *mrt, struct mfcctl *mfc, int parent) { @@ -1211,9 +1186,8 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt, list_add_rcu(&c->list, &mrt->mfc_cache_array[line]); - /* - * Check to see if we resolved a queued list. If so we - * need to send on the frames and tidy up. + /* Check to see if we resolved a queued list. If so we + * need to send on the frames and tidy up. */ found = false; spin_lock_bh(&mfc_unres_lock); @@ -1238,10 +1212,7 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt, return 0; } -/* - * Close the multicast socket, and clear the vif tables etc - */ - +/* Close the multicast socket, and clear the vif tables etc */ static void mroute_clean_tables(struct mr_table *mrt) { int i; @@ -1249,7 +1220,6 @@ static void mroute_clean_tables(struct mr_table *mrt) struct mfc_cache *c, *next; /* Shut down all active vif entries */ - for (i = 0; i < mrt->maxvif; i++) { if (!(mrt->vif_table[i].flags & VIFF_STATIC)) vif_delete(mrt, i, 0, &list); @@ -1257,7 +1227,6 @@ static void mroute_clean_tables(struct mr_table *mrt) unregister_netdevice_many(&list); /* Wipe the cache */ - for (i = 0; i < MFC_LINES; i++) { list_for_each_entry_safe(c, next, &mrt->mfc_cache_array[i], list) { if (c->mfc_flags & MFC_STATIC) @@ -1301,11 +1270,10 @@ static void mrtsock_destruct(struct sock *sk) rtnl_unlock(); } -/* - * Socket options and virtual interface manipulation. The whole - * virtual interface system is a complete heap, but unfortunately - * that's how BSD mrouted happens to think. Maybe one day with a proper - * MOSPF/PIM router set up we can clean this up. +/* Socket options and virtual interface manipulation. The whole + * virtual interface system is a complete heap, but unfortunately + * that's how BSD mrouted happens to think. Maybe one day with a proper + * MOSPF/PIM router set up we can clean this up. */ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsigned int optlen) @@ -1373,10 +1341,9 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi rtnl_unlock(); return ret; - /* - * Manipulate the forwarding caches. These live - * in a sort of kernel/user symbiosis. - */ + /* Manipulate the forwarding caches. These live + * in a sort of kernel/user symbiosis. + */ case MRT_ADD_MFC: case MRT_DEL_MFC: parent = -1; @@ -1397,9 +1364,7 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi parent); rtnl_unlock(); return ret; - /* - * Control PIM assert. - */ + /* Control PIM assert. */ case MRT_ASSERT: { int v; @@ -1456,19 +1421,13 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi return ret; } #endif - /* - * Spurious command, or MRT_VERSION which you cannot - * set. - */ + /* Spurious command, or MRT_VERSION which you cannot set. */ default: return -ENOPROTOOPT; } } -/* - * Getsock opt support for the multicast routing system. - */ - +/* Getsock opt support for the multicast routing system. */ int ip_mroute_getsockopt(struct sock *sk, int optname, char __user *optval, int __user *optlen) { int olr; @@ -1512,10 +1471,7 @@ int ip_mroute_getsockopt(struct sock *sk, int optname, char __user *optval, int return 0; } -/* - * The IP multicast ioctl support routines. - */ - +/* The IP multicast ioctl support routines. */ int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg) { struct sioc_sg_req sr; @@ -1648,7 +1604,6 @@ int ipmr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg) } #endif - static int ipmr_device_event(struct notifier_block *this, unsigned long event, void *ptr) { struct net_device *dev = netdev_notifier_info_to_dev(ptr); @@ -1670,17 +1625,14 @@ static int ipmr_device_event(struct notifier_block *this, unsigned long event, v return NOTIFY_DONE; } - static struct notifier_block ip_mr_notifier = { .notifier_call = ipmr_device_event, }; -/* - * Encapsulate a packet by attaching a valid IPIP header to it. - * This avoids tunnel drivers and other mess and gives us the speed so - * important for multicast video. +/* Encapsulate a packet by attaching a valid IPIP header to it. + * This avoids tunnel drivers and other mess and gives us the speed so + * important for multicast video. */ - static void ip_encap(struct net *net, struct sk_buff *skb, __be32 saddr, __be32 daddr) { @@ -1722,9 +1674,7 @@ static inline int ipmr_forward_finish(struct net *net, struct sock *sk, return dst_output(net, sk, skb); } -/* - * Processing handlers for ipmr_forward - */ +/* Processing handlers for ipmr_forward */ static void ipmr_queue_xmit(struct net *net, struct mr_table *mrt, struct sk_buff *skb, struct mfc_cache *c, int vifi) @@ -1773,7 +1723,6 @@ static void ipmr_queue_xmit(struct net *net, struct mr_table *mrt, * allow to send ICMP, so that packets will disappear * to blackhole. */ - IP_INC_STATS(net, IPSTATS_MIB_FRAGFAILS); ip_rt_put(rt); goto out_free; @@ -1805,8 +1754,7 @@ static void ipmr_queue_xmit(struct net *net, struct mr_table *mrt, IPCB(skb)->flags |= IPSKB_FORWARDED; - /* - * RFC1584 teaches, that DVMRP/PIM router must deliver packets locally + /* RFC1584 teaches, that DVMRP/PIM router must deliver packets locally * not only before forwarding, but after forwarding on all output * interfaces. It is clear, if mrouter runs a multicasting * program, it should receive packets not depending to what interface @@ -1837,7 +1785,6 @@ static int ipmr_find_vif(struct mr_table *mrt, struct net_device *dev) } /* "local" means that we should preserve one skb (for local delivery) */ - static void ip_mr_forward(struct net *net, struct mr_table *mrt, struct sk_buff *skb, struct mfc_cache *cache, int local) @@ -1862,9 +1809,7 @@ static void ip_mr_forward(struct net *net, struct mr_table *mrt, goto forward; } - /* - * Wrong interface: drop packet and (maybe) send PIM assert. - */ + /* Wrong interface: drop packet and (maybe) send PIM assert. */ if (mrt->vif_table[vif].dev != skb->dev) { if (rt_is_output_route(skb_rtable(skb))) { /* It is our own packet, looped back. @@ -1903,9 +1848,7 @@ forward: mrt->vif_table[vif].pkt_in++; mrt->vif_table[vif].bytes_in += skb->len; - /* - * Forward the frame - */ + /* Forward the frame */ if (cache->mfc_origin == htonl(INADDR_ANY) && cache->mfc_mcastgrp == htonl(INADDR_ANY)) { if (true_vifi >= 0 && @@ -1979,11 +1922,9 @@ static struct mr_table *ipmr_rt_fib_lookup(struct net *net, struct sk_buff *skb) return mrt; } -/* - * Multicast packets for forwarding arrive here - * Called with rcu_read_lock(); +/* Multicast packets for forwarding arrive here + * Called with rcu_read_lock(); */ - int ip_mr_input(struct sk_buff *skb) { struct mfc_cache *cache; @@ -2034,9 +1975,7 @@ int ip_mr_input(struct sk_buff *skb) vif); } - /* - * No usable cache entry - */ + /* No usable cache entry */ if (!cache) { int vif; @@ -2078,10 +2017,7 @@ dont_forward: } #ifdef CONFIG_IP_PIMSM_V1 -/* - * Handle IGMP messages of PIMv1 - */ - +/* Handle IGMP messages of PIMv1 */ int pim_rcv_v1(struct sk_buff *skb) { struct igmphdr *pim; @@ -2406,9 +2342,8 @@ done: } #ifdef CONFIG_PROC_FS -/* - * The /proc interfaces to multicast routing : - * /proc/net/ip_mr_cache & /proc/net/ip_mr_vif +/* The /proc interfaces to multicast routing : + * /proc/net/ip_mr_cache & /proc/net/ip_mr_vif */ struct ipmr_vif_iter { struct seq_net_private p; @@ -2692,10 +2627,7 @@ static const struct net_protocol pim_protocol = { }; #endif - -/* - * Setup for IP multicast routing - */ +/* Setup for IP multicast routing */ static int __net_init ipmr_net_init(struct net *net) { int err; -- cgit v1.2.3-71-gd317 From 3110489117581a980537b6d999a3724214ba772c Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 22 Oct 2015 17:35:19 +0200 Subject: mac80211: allow driver to prevent two stations w/ same address Some devices or drivers cannot deal with having the same station address for different virtual interfaces, say as a client to two virtual AP interfaces. Rather than requiring each driver with a limitation like that to enforce it, add a hardware flag for it. Signed-off-by: Johannes Berg --- include/net/mac80211.h | 6 ++++++ net/mac80211/debugfs.c | 1 + net/mac80211/sta_info.c | 18 ++++++++++++++++-- 3 files changed, 23 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 760bc4d5a2cf..8628118214cc 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1901,6 +1901,11 @@ struct ieee80211_txq { * @IEEE80211_HW_BEACON_TX_STATUS: The device/driver provides TX status * for sent beacons. * + * @IEEE80211_HW_NEEDS_UNIQUE_STA_ADDR: Hardware (or driver) requires that each + * station has a unique address, i.e. each station entry can be identified + * by just its MAC address; this prevents, for example, the same station + * from connecting to two virtual AP interfaces at the same time. + * * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays */ enum ieee80211_hw_flags { @@ -1936,6 +1941,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_TDLS_WIDER_BW, IEEE80211_HW_SUPPORTS_AMSDU_IN_AMPDU, IEEE80211_HW_BEACON_TX_STATUS, + IEEE80211_HW_NEEDS_UNIQUE_STA_ADDR, /* keep last, obviously */ NUM_IEEE80211_HW_FLAGS diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c index 4d2aaebd4f97..abbdff03ce92 100644 --- a/net/mac80211/debugfs.c +++ b/net/mac80211/debugfs.c @@ -125,6 +125,7 @@ static const char *hw_flag_names[NUM_IEEE80211_HW_FLAGS + 1] = { FLAG(TDLS_WIDER_BW), FLAG(SUPPORTS_AMSDU_IN_AMPDU), FLAG(BEACON_TX_STATUS), + FLAG(NEEDS_UNIQUE_STA_ADDR), /* keep last for the build bug below */ (void *)0x1 diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index f91d1873218c..8f630f51d9bd 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -435,6 +435,19 @@ static int sta_info_insert_check(struct sta_info *sta) is_multicast_ether_addr(sta->sta.addr))) return -EINVAL; + /* Strictly speaking this isn't necessary as we hold the mutex, but + * the rhashtable code can't really deal with that distinction. We + * do require the mutex for correctness though. + */ + rcu_read_lock(); + lockdep_assert_held(&sdata->local->sta_mtx); + if (ieee80211_hw_check(&sdata->local->hw, NEEDS_UNIQUE_STA_ADDR) && + ieee80211_find_sta_by_ifaddr(&sdata->local->hw, sta->addr, NULL)) { + rcu_read_unlock(); + return -ENOTUNIQ; + } + rcu_read_unlock(); + return 0; } @@ -554,14 +567,15 @@ int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU) might_sleep(); + mutex_lock(&local->sta_mtx); + err = sta_info_insert_check(sta); if (err) { + mutex_unlock(&local->sta_mtx); rcu_read_lock(); goto out_free; } - mutex_lock(&local->sta_mtx); - err = sta_info_insert_finish(sta); if (err) goto out_free; -- cgit v1.2.3-71-gd317 From 0483eeac59876ac37d4edbabd48727a468416d5b Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Fri, 23 Oct 2015 09:50:03 +0200 Subject: cfg80211: replace ieee80211_ie_split() with an inline The function is a very simple wrapper around another one, just adds a few default parameters, so replace it with a static inline instead of using EXPORT_SYMBOL, reducing the module size slightly. Signed-off-by: Johannes Berg --- include/net/cfg80211.h | 7 +++++-- net/wireless/util.c | 7 ------- 2 files changed, 5 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 2c7bdb81d30c..e568872203a5 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -5173,8 +5173,11 @@ size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen, * buffer starts, which may be @ielen if the entire (remainder) * of the buffer should be used. */ -size_t ieee80211_ie_split(const u8 *ies, size_t ielen, - const u8 *ids, int n_ids, size_t offset); +static inline size_t ieee80211_ie_split(const u8 *ies, size_t ielen, + const u8 *ids, int n_ids, size_t offset) +{ + return ieee80211_ie_split_ric(ies, ielen, ids, n_ids, NULL, 0, offset); +} /** * cfg80211_report_wowlan_wakeup - report wakeup from WoWLAN diff --git a/net/wireless/util.c b/net/wireless/util.c index baf7218cec15..010a3c75a677 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1325,13 +1325,6 @@ size_t ieee80211_ie_split_ric(const u8 *ies, size_t ielen, } EXPORT_SYMBOL(ieee80211_ie_split_ric); -size_t ieee80211_ie_split(const u8 *ies, size_t ielen, - const u8 *ids, int n_ids, size_t offset) -{ - return ieee80211_ie_split_ric(ies, ielen, ids, n_ids, NULL, 0, offset); -} -EXPORT_SYMBOL(ieee80211_ie_split); - bool ieee80211_operating_class_to_band(u8 operating_class, enum ieee80211_band *band) { -- cgit v1.2.3-71-gd317 From cf595922b9a3b61e308224fd29909f54ecb557d4 Mon Sep 17 00:00:00 2001 From: Luca Coelho Date: Mon, 9 Nov 2015 12:17:37 +0200 Subject: nl80211: clarify NL80211_ATTR_SCHED_SCAN_DELAY usage with net-detect In this attribute's documentation, it was not clear whether the delay started counting when WoWLAN net-detect was enabled or when the system was suspended. The correct answer is that it starts when the system suspends (which is when, in practice, the scan is scheduled). Clarify that in the nl80211.h documentation. Suggested-by: Samuel Tan Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg --- include/uapi/linux/nl80211.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 1f0b4cf5dd03..07099cb14778 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -1764,8 +1764,9 @@ enum nl80211_commands { * over all channels. * * @NL80211_ATTR_SCHED_SCAN_DELAY: delay before the first cycle of a - * scheduled scan (or a WoWLAN net-detect scan) is started, u32 - * in seconds. + * scheduled scan is started. Or the delay before a WoWLAN + * net-detect scan is started, counting from the moment the + * system is suspended. This value is a u32, in seconds. * @NL80211_ATTR_REG_INDOOR: flag attribute, if set indicates that the device * is operating in an indoor environment. -- cgit v1.2.3-71-gd317 From 0ead2510f8cec11ce96308d79a1b4ee272fb5238 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Tue, 17 Nov 2015 10:24:36 +0200 Subject: mac80211: allow the driver to send EOSP when needed This can happen when the driver needs to send less frames than expected and then needs to close the SP. Mac80211 still needs to set the more_data properly based on its buffer state (ps_tx_buffer and buffered frames on other TIDs). To that end, refactor the code that delivers frames upon uAPSD trigger frames to be able to get only the more_data bit without actually delivering those frames in case the driver is just asking to set a NDP with EOSP and MORE_DATA bit properly set. Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg --- include/net/mac80211.h | 22 ++++++++ net/mac80211/sta_info.c | 144 +++++++++++++++++++++++++++++++++--------------- net/mac80211/trace.h | 25 +++++++++ 3 files changed, 148 insertions(+), 43 deletions(-) (limited to 'include') diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 8628118214cc..18ac733afc91 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -4868,6 +4868,28 @@ void ieee80211_sta_block_awake(struct ieee80211_hw *hw, */ void ieee80211_sta_eosp(struct ieee80211_sta *pubsta); +/** + * ieee80211_send_eosp_nullfunc - ask mac80211 to send NDP with EOSP + * @pubsta: the station + * @tid: the tid of the NDP + * + * Sometimes the device understands that it needs to close + * the Service Period unexpectedly. This can happen when + * sending frames that are filling holes in the BA window. + * In this case, the device can ask mac80211 to send a + * Nullfunc frame with EOSP set. When that happens, the + * driver must have called ieee80211_sta_set_buffered() to + * let mac80211 know that there are no buffered frames any + * more, otherwise mac80211 will get the more_data bit wrong. + * The low level driver must have made sure that the frame + * will be sent despite the station being in power-save. + * Mac80211 won't call allow_buffered_frames(). + * Note that calling this function, doesn't exempt the driver + * from closing the EOSP properly, it will still have to call + * ieee80211_sta_eosp when the NDP is sent. + */ +void ieee80211_send_eosp_nullfunc(struct ieee80211_sta *pubsta, int tid); + /** * ieee80211_iter_keys - iterate keys programmed into the device * @hw: pointer obtained from ieee80211_alloc_hw() diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 8f630f51d9bd..723fa30aafc5 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -2,6 +2,7 @@ * Copyright 2002-2005, Instant802 Networks, Inc. * Copyright 2006-2007 Jiri Benc * Copyright 2013-2014 Intel Mobile Communications GmbH + * Copyright (C) 2015 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -1244,11 +1245,11 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) ieee80211_check_fast_xmit(sta); } -static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata, - struct sta_info *sta, int tid, +static void ieee80211_send_null_response(struct sta_info *sta, int tid, enum ieee80211_frame_release_type reason, - bool call_driver) + bool call_driver, bool more_data) { + struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; struct ieee80211_qos_hdr *nullfunc; struct sk_buff *skb; @@ -1288,9 +1289,13 @@ static void ieee80211_send_null_response(struct ieee80211_sub_if_data *sdata, if (qos) { nullfunc->qos_ctrl = cpu_to_le16(tid); - if (reason == IEEE80211_FRAME_RELEASE_UAPSD) + if (reason == IEEE80211_FRAME_RELEASE_UAPSD) { nullfunc->qos_ctrl |= cpu_to_le16(IEEE80211_QOS_CTL_EOSP); + if (more_data) + nullfunc->frame_control |= + cpu_to_le16(IEEE80211_FCTL_MOREDATA); + } } info = IEEE80211_SKB_CB(skb); @@ -1337,22 +1342,48 @@ static int find_highest_prio_tid(unsigned long tids) return fls(tids) - 1; } +/* Indicates if the MORE_DATA bit should be set in the last + * frame obtained by ieee80211_sta_ps_get_frames. + * Note that driver_release_tids is relevant only if + * reason = IEEE80211_FRAME_RELEASE_PSPOLL + */ +static bool +ieee80211_sta_ps_more_data(struct sta_info *sta, u8 ignored_acs, + enum ieee80211_frame_release_type reason, + unsigned long driver_release_tids) +{ + int ac; + + /* If the driver has data on more than one TID then + * certainly there's more data if we release just a + * single frame now (from a single TID). This will + * only happen for PS-Poll. + */ + if (reason == IEEE80211_FRAME_RELEASE_PSPOLL && + hweight16(driver_release_tids) > 1) + return true; + + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { + if (ignored_acs & BIT(ac)) + continue; + + if (!skb_queue_empty(&sta->tx_filtered[ac]) || + !skb_queue_empty(&sta->ps_tx_buf[ac])) + return true; + } + + return false; +} + static void -ieee80211_sta_ps_deliver_response(struct sta_info *sta, - int n_frames, u8 ignored_acs, - enum ieee80211_frame_release_type reason) +ieee80211_sta_ps_get_frames(struct sta_info *sta, int n_frames, u8 ignored_acs, + enum ieee80211_frame_release_type reason, + struct sk_buff_head *frames, + unsigned long *driver_release_tids) { struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_local *local = sdata->local; - bool more_data = false; int ac; - unsigned long driver_release_tids = 0; - struct sk_buff_head frames; - - /* Service or PS-Poll period starts */ - set_sta_flag(sta, WLAN_STA_SP); - - __skb_queue_head_init(&frames); /* Get response frame(s) and more data bit for the last one. */ for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { @@ -1366,26 +1397,13 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta, /* if we already have frames from software, then we can't also * release from hardware queues */ - if (skb_queue_empty(&frames)) { - driver_release_tids |= sta->driver_buffered_tids & tids; - driver_release_tids |= sta->txq_buffered_tids & tids; + if (skb_queue_empty(frames)) { + *driver_release_tids |= + sta->driver_buffered_tids & tids; + *driver_release_tids |= sta->txq_buffered_tids & tids; } - if (driver_release_tids) { - /* If the driver has data on more than one TID then - * certainly there's more data if we release just a - * single frame now (from a single TID). This will - * only happen for PS-Poll. - */ - if (reason == IEEE80211_FRAME_RELEASE_PSPOLL && - hweight16(driver_release_tids) > 1) { - more_data = true; - driver_release_tids = - BIT(find_highest_prio_tid( - driver_release_tids)); - break; - } - } else { + if (!*driver_release_tids) { struct sk_buff *skb; while (n_frames > 0) { @@ -1399,20 +1417,44 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta, if (!skb) break; n_frames--; - __skb_queue_tail(&frames, skb); + __skb_queue_tail(frames, skb); } } - /* If we have more frames buffered on this AC, then set the - * more-data bit and abort the loop since we can't send more - * data from other ACs before the buffered frames from this. + /* If we have more frames buffered on this AC, then abort the + * loop since we can't send more data from other ACs before + * the buffered frames from this. */ if (!skb_queue_empty(&sta->tx_filtered[ac]) || - !skb_queue_empty(&sta->ps_tx_buf[ac])) { - more_data = true; + !skb_queue_empty(&sta->ps_tx_buf[ac])) break; - } } +} + +static void +ieee80211_sta_ps_deliver_response(struct sta_info *sta, + int n_frames, u8 ignored_acs, + enum ieee80211_frame_release_type reason) +{ + struct ieee80211_sub_if_data *sdata = sta->sdata; + struct ieee80211_local *local = sdata->local; + unsigned long driver_release_tids = 0; + struct sk_buff_head frames; + bool more_data; + + /* Service or PS-Poll period starts */ + set_sta_flag(sta, WLAN_STA_SP); + + __skb_queue_head_init(&frames); + + ieee80211_sta_ps_get_frames(sta, n_frames, ignored_acs, reason, + &frames, &driver_release_tids); + + more_data = ieee80211_sta_ps_more_data(sta, ignored_acs, reason, driver_release_tids); + + if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) + driver_release_tids = + BIT(find_highest_prio_tid(driver_release_tids)); if (skb_queue_empty(&frames) && !driver_release_tids) { int tid; @@ -1435,7 +1477,7 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta, /* This will evaluate to 1, 3, 5 or 7. */ tid = 7 - ((ffs(~ignored_acs) - 1) << 1); - ieee80211_send_null_response(sdata, sta, tid, reason, true); + ieee80211_send_null_response(sta, tid, reason, true, false); } else if (!driver_release_tids) { struct sk_buff_head pending; struct sk_buff *skb; @@ -1535,8 +1577,8 @@ ieee80211_sta_ps_deliver_response(struct sta_info *sta, if (need_null) ieee80211_send_null_response( - sdata, sta, find_highest_prio_tid(tids), - reason, false); + sta, find_highest_prio_tid(tids), + reason, false, false); sta_info_recalc_tim(sta); } else { @@ -1674,6 +1716,22 @@ void ieee80211_sta_eosp(struct ieee80211_sta *pubsta) } EXPORT_SYMBOL(ieee80211_sta_eosp); +void ieee80211_send_eosp_nullfunc(struct ieee80211_sta *pubsta, int tid) +{ + struct sta_info *sta = container_of(pubsta, struct sta_info, sta); + enum ieee80211_frame_release_type reason; + bool more_data; + + trace_api_send_eosp_nullfunc(sta->local, pubsta, tid); + + reason = IEEE80211_FRAME_RELEASE_UAPSD; + more_data = ieee80211_sta_ps_more_data(sta, ~sta->sta.uapsd_queues, + reason, 0); + + ieee80211_send_null_response(sta, tid, reason, false, more_data); +} +EXPORT_SYMBOL(ieee80211_send_eosp_nullfunc); + void ieee80211_sta_set_buffered(struct ieee80211_sta *pubsta, u8 tid, bool buffered) { diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h index 56c6d6cfa5a1..a6b4442776a0 100644 --- a/net/mac80211/trace.h +++ b/net/mac80211/trace.h @@ -2027,6 +2027,31 @@ TRACE_EVENT(api_eosp, ) ); +TRACE_EVENT(api_send_eosp_nullfunc, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sta *sta, + u8 tid), + + TP_ARGS(local, sta, tid), + + TP_STRUCT__entry( + LOCAL_ENTRY + STA_ENTRY + __field(u8, tid) + ), + + TP_fast_assign( + LOCAL_ASSIGN; + STA_ASSIGN; + __entry->tid = tid; + ), + + TP_printk( + LOCAL_PR_FMT STA_PR_FMT " tid:%d", + LOCAL_PR_ARG, STA_PR_ARG, __entry->tid + ) +); + TRACE_EVENT(api_sta_set_buffered, TP_PROTO(struct ieee80211_local *local, struct ieee80211_sta *sta, -- cgit v1.2.3-71-gd317 From ef044763a3ca6b9e0bb65a9ce0cb38c0eca62756 Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Tue, 17 Nov 2015 10:24:37 +0200 Subject: mac80211: add atomic uploaded keys iterator add ieee80211_iter_keys_rcu() to iterate over uploaded keys in atomic context (when rcu is locked) The station removal code removes the keys only after calling synchronize_net(), so it's not safe to iterate the keys at this point (and postponing the actual key deletion with call_rcu() might result in some badly-ordered ops calls). Add a flag to indicate a station is being removed, and skip the configured keys if it's set. Signed-off-by: Eliad Peller Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg --- include/net/mac80211.h | 24 +++++++++++++++++++++ net/mac80211/key.c | 56 +++++++++++++++++++++++++++++++++++++++++++++---- net/mac80211/sta_info.c | 1 + net/mac80211/sta_info.h | 2 ++ 4 files changed, 79 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 18ac733afc91..a68051c41ac3 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -4917,6 +4917,30 @@ void ieee80211_iter_keys(struct ieee80211_hw *hw, void *data), void *iter_data); +/** + * ieee80211_iter_keys_rcu - iterate keys programmed into the device + * @hw: pointer obtained from ieee80211_alloc_hw() + * @vif: virtual interface to iterate, may be %NULL for all + * @iter: iterator function that will be called for each key + * @iter_data: custom data to pass to the iterator function + * + * This function can be used to iterate all the keys known to + * mac80211, even those that weren't previously programmed into + * the device. Note that due to locking reasons, keys of station + * in removal process will be skipped. + * + * This function requires being called in an RCU critical section, + * and thus iter must be atomic. + */ +void ieee80211_iter_keys_rcu(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + void (*iter)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key, + void *data), + void *iter_data); + /** * ieee80211_iter_chan_contexts_atomic - iterate channel contexts * @hw: pointre obtained from ieee80211_alloc_hw(). diff --git a/net/mac80211/key.c b/net/mac80211/key.c index 44388d6a1d8e..5e5bc599da4c 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -4,6 +4,7 @@ * Copyright 2006-2007 Jiri Benc * Copyright 2007-2008 Johannes Berg * Copyright 2013-2014 Intel Mobile Communications GmbH + * Copyright 2015 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -320,7 +321,7 @@ static void ieee80211_key_replace(struct ieee80211_sub_if_data *sdata, return; if (new) - list_add_tail(&new->list, &sdata->key_list); + list_add_tail_rcu(&new->list, &sdata->key_list); WARN_ON(new && old && new->conf.keyidx != old->conf.keyidx); @@ -368,7 +369,7 @@ static void ieee80211_key_replace(struct ieee80211_sub_if_data *sdata, } if (old) - list_del(&old->list); + list_del_rcu(&old->list); } struct ieee80211_key * @@ -592,8 +593,8 @@ static void ieee80211_key_destroy(struct ieee80211_key *key, return; /* - * Synchronize so the TX path can no longer be using - * this key before we free/remove it. + * Synchronize so the TX path and rcu key iterators + * can no longer be using this key before we free/remove it. */ synchronize_net(); @@ -744,6 +745,53 @@ void ieee80211_iter_keys(struct ieee80211_hw *hw, } EXPORT_SYMBOL(ieee80211_iter_keys); +static void +_ieee80211_iter_keys_rcu(struct ieee80211_hw *hw, + struct ieee80211_sub_if_data *sdata, + void (*iter)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key, + void *data), + void *iter_data) +{ + struct ieee80211_key *key; + + list_for_each_entry_rcu(key, &sdata->key_list, list) { + /* skip keys of station in removal process */ + if (key->sta && key->sta->removed) + continue; + if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) + continue; + + iter(hw, &sdata->vif, + key->sta ? &key->sta->sta : NULL, + &key->conf, iter_data); + } +} + +void ieee80211_iter_keys_rcu(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + void (*iter)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key, + void *data), + void *iter_data) +{ + struct ieee80211_local *local = hw_to_local(hw); + struct ieee80211_sub_if_data *sdata; + + if (vif) { + sdata = vif_to_sdata(vif); + _ieee80211_iter_keys_rcu(hw, sdata, iter, iter_data); + } else { + list_for_each_entry_rcu(sdata, &local->interfaces, list) + _ieee80211_iter_keys_rcu(hw, sdata, iter, iter_data); + } +} +EXPORT_SYMBOL(ieee80211_iter_keys_rcu); + static void ieee80211_free_keys_iface(struct ieee80211_sub_if_data *sdata, struct list_head *keys) { diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 723fa30aafc5..4402ad5b27d1 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -883,6 +883,7 @@ static int __must_check __sta_info_destroy_part1(struct sta_info *sta) } list_del_rcu(&sta->list); + sta->removed = true; drv_sta_pre_rcu_remove(local, sta->sdata, sta); diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 2cafb21b422f..d6051629ed15 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -367,6 +367,7 @@ DECLARE_EWMA(signal, 1024, 8) * @mesh: mesh STA information * @debugfs: debug filesystem info * @dead: set to true when sta is unlinked + * @removed: set to true when sta is being removed from sta_list * @uploaded: set to true when sta is uploaded to the driver * @sta: station information we share with the driver * @sta_state: duplicates information about station state (for debug) @@ -412,6 +413,7 @@ struct sta_info { u16 listen_interval; bool dead; + bool removed; bool uploaded; -- cgit v1.2.3-71-gd317 From b115b972997428b9134aba377721fea6486adbd0 Mon Sep 17 00:00:00 2001 From: "Janusz.Dziedzic@tieto.com" Date: Tue, 27 Oct 2015 08:38:40 +0100 Subject: mac80211: add new IEEE80211_VIF_GET_NOA_UPDATE flag Add new VIF flag, that will allow get NOA update notification when driver will request this, even this is not pure P2P vif (eg. STA vif). Signed-off-by: Janusz Dziedzic Signed-off-by: Johannes Berg --- include/net/mac80211.h | 4 ++++ net/mac80211/mlme.c | 6 ++++-- 2 files changed, 8 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/mac80211.h b/include/net/mac80211.h index a68051c41ac3..7c30faff245f 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1321,11 +1321,15 @@ struct ieee80211_channel_switch { * interface. This flag should be set during interface addition, * but may be set/cleared as late as authentication to an AP. It is * only valid for managed/station mode interfaces. + * @IEEE80211_VIF_GET_NOA_UPDATE: request to handle NOA attributes + * and send P2P_PS notification to the driver if NOA changed, even + * this is not pure P2P vif. */ enum ieee80211_vif_flags { IEEE80211_VIF_BEACON_FILTER = BIT(0), IEEE80211_VIF_SUPPORTS_CQM_RSSI = BIT(1), IEEE80211_VIF_SUPPORTS_UAPSD = BIT(2), + IEEE80211_VIF_GET_NOA_UPDATE = BIT(3), }; /** diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index b140cc6651f4..123b26d177e8 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1930,7 +1930,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE; - if (sdata->vif.p2p) { + if (sdata->vif.p2p || + sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) { const struct cfg80211_bss_ies *ies; rcu_read_lock(); @@ -3458,7 +3459,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, } } - if (sdata->vif.p2p) { + if (sdata->vif.p2p || + sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) { struct ieee80211_p2p_noa_attr noa = {}; int ret; -- cgit v1.2.3-71-gd317 From 91d3ab46730379e89e1e908c6f62fbcadb3d8f08 Mon Sep 17 00:00:00 2001 From: Vidyullatha Kanchanapally Date: Fri, 30 Oct 2015 19:14:49 +0530 Subject: cfg80211: Add support for aborting an ongoing scan Implement new functionality for aborting an ongoing scan. Add NL80211_CMD_ABORT_SCAN to the nl80211 interface. After aborting the scan, driver shall provide the scan status by calling cfg80211_scan_done(). Reviewed-by: Jouni Malinen Signed-off-by: Vidyullatha Kanchanapally Signed-off-by: Sunil Dutt [change command to take wdev instead of netdev so that it can be used on p2p-device scans] Signed-off-by: Johannes Berg --- include/net/cfg80211.h | 3 +++ include/uapi/linux/nl80211.h | 6 ++++++ net/wireless/nl80211.c | 26 ++++++++++++++++++++++++++ net/wireless/rdev-ops.h | 8 ++++++++ net/wireless/trace.h | 4 ++++ 5 files changed, 47 insertions(+) (limited to 'include') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index e568872203a5..9bcaaf7cd15a 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -2321,6 +2321,8 @@ struct cfg80211_qos_map { * the driver, and will be valid until passed to cfg80211_scan_done(). * For scan results, call cfg80211_inform_bss(); you can call this outside * the scan/scan_done bracket too. + * @abort_scan: Tell the driver to abort an ongoing scan. The driver shall + * indicate the status of the scan through cfg80211_scan_done(). * * @auth: Request to authenticate with the specified peer * (invoked with the wireless_dev mutex held) @@ -2593,6 +2595,7 @@ struct cfg80211_ops { int (*scan)(struct wiphy *wiphy, struct cfg80211_scan_request *request); + void (*abort_scan)(struct wiphy *wiphy, struct wireless_dev *wdev); int (*auth)(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_auth_request *req); diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 07099cb14778..5b7b5ebe7ca8 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -820,6 +820,10 @@ * as an event to indicate changes for devices with wiphy-specific regdom * management. * + * @NL80211_CMD_ABORT_SCAN: Stop an ongoing scan. Returns -ENOENT if a scan is + * not running. The driver indicates the status of the scan through + * cfg80211_scan_done(). + * * @NL80211_CMD_MAX: highest used command number * @__NL80211_CMD_AFTER_LAST: internal use */ @@ -1006,6 +1010,8 @@ enum nl80211_commands { NL80211_CMD_WIPHY_REG_CHANGE, + NL80211_CMD_ABORT_SCAN, + /* add new commands above here */ /* used to define NL80211_CMD_MAX below */ diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 41e57d0c4d43..67e7b531db79 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -5997,6 +5997,24 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) return err; } +static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct wireless_dev *wdev = info->user_ptr[1]; + + if (!rdev->ops->abort_scan) + return -EOPNOTSUPP; + + if (rdev->scan_msg) + return 0; + + if (!rdev->scan_req) + return -ENOENT; + + rdev_abort_scan(rdev, wdev); + return 0; +} + static int nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans, struct cfg80211_sched_scan_request *request, @@ -10944,6 +10962,14 @@ static const struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_WDEV_UP | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_ABORT_SCAN, + .doit = nl80211_abort_scan, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_WDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, { .cmd = NL80211_CMD_GET_SCAN, .policy = nl80211_policy, diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index b8cc594d409d..8ae0c04f9fc7 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -427,6 +427,14 @@ static inline int rdev_scan(struct cfg80211_registered_device *rdev, return ret; } +static inline void rdev_abort_scan(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev) +{ + trace_rdev_abort_scan(&rdev->wiphy, wdev); + rdev->ops->abort_scan(&rdev->wiphy, wdev); + trace_rdev_return_void(&rdev->wiphy); +} + static inline int rdev_auth(struct cfg80211_registered_device *rdev, struct net_device *dev, struct cfg80211_auth_request *req) diff --git a/net/wireless/trace.h b/net/wireless/trace.h index 5b9139e53199..09b242b09bed 100644 --- a/net/wireless/trace.h +++ b/net/wireless/trace.h @@ -2917,6 +2917,10 @@ TRACE_EVENT(rdev_set_coalesce, WIPHY_PR_ARG, __entry->n_rules) ); +DEFINE_EVENT(wiphy_wdev_evt, rdev_abort_scan, + TP_PROTO(struct wiphy *wiphy, struct wireless_dev *wdev), + TP_ARGS(wiphy, wdev) +); #endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */ #undef TRACE_INCLUDE_PATH -- cgit v1.2.3-71-gd317