cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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bond_sysfs_slave.c (3513B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*	Sysfs attributes of bond slaves
      3 *
      4 *      Copyright (c) 2014 Scott Feldman <sfeldma@cumulusnetworks.com>
      5 */
      6
      7#include <linux/capability.h>
      8#include <linux/kernel.h>
      9#include <linux/netdevice.h>
     10
     11#include <net/bonding.h>
     12
     13struct slave_attribute {
     14	struct attribute attr;
     15	ssize_t (*show)(struct slave *, char *);
     16};
     17
     18#define SLAVE_ATTR_RO(_name)					\
     19const struct slave_attribute slave_attr_##_name = __ATTR_RO(_name)
     20
     21static ssize_t state_show(struct slave *slave, char *buf)
     22{
     23	switch (bond_slave_state(slave)) {
     24	case BOND_STATE_ACTIVE:
     25		return sprintf(buf, "active\n");
     26	case BOND_STATE_BACKUP:
     27		return sprintf(buf, "backup\n");
     28	default:
     29		return sprintf(buf, "UNKNOWN\n");
     30	}
     31}
     32static SLAVE_ATTR_RO(state);
     33
     34static ssize_t mii_status_show(struct slave *slave, char *buf)
     35{
     36	return sprintf(buf, "%s\n", bond_slave_link_status(slave->link));
     37}
     38static SLAVE_ATTR_RO(mii_status);
     39
     40static ssize_t link_failure_count_show(struct slave *slave, char *buf)
     41{
     42	return sprintf(buf, "%d\n", slave->link_failure_count);
     43}
     44static SLAVE_ATTR_RO(link_failure_count);
     45
     46static ssize_t perm_hwaddr_show(struct slave *slave, char *buf)
     47{
     48	return sprintf(buf, "%*phC\n",
     49		       slave->dev->addr_len,
     50		       slave->perm_hwaddr);
     51}
     52static SLAVE_ATTR_RO(perm_hwaddr);
     53
     54static ssize_t queue_id_show(struct slave *slave, char *buf)
     55{
     56	return sprintf(buf, "%d\n", slave->queue_id);
     57}
     58static SLAVE_ATTR_RO(queue_id);
     59
     60static ssize_t ad_aggregator_id_show(struct slave *slave, char *buf)
     61{
     62	const struct aggregator *agg;
     63
     64	if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
     65		agg = SLAVE_AD_INFO(slave)->port.aggregator;
     66		if (agg)
     67			return sprintf(buf, "%d\n",
     68				       agg->aggregator_identifier);
     69	}
     70
     71	return sprintf(buf, "N/A\n");
     72}
     73static SLAVE_ATTR_RO(ad_aggregator_id);
     74
     75static ssize_t ad_actor_oper_port_state_show(struct slave *slave, char *buf)
     76{
     77	const struct port *ad_port;
     78
     79	if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
     80		ad_port = &SLAVE_AD_INFO(slave)->port;
     81		if (ad_port->aggregator)
     82			return sprintf(buf, "%u\n",
     83				       ad_port->actor_oper_port_state);
     84	}
     85
     86	return sprintf(buf, "N/A\n");
     87}
     88static SLAVE_ATTR_RO(ad_actor_oper_port_state);
     89
     90static ssize_t ad_partner_oper_port_state_show(struct slave *slave, char *buf)
     91{
     92	const struct port *ad_port;
     93
     94	if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
     95		ad_port = &SLAVE_AD_INFO(slave)->port;
     96		if (ad_port->aggregator)
     97			return sprintf(buf, "%u\n",
     98				       ad_port->partner_oper.port_state);
     99	}
    100
    101	return sprintf(buf, "N/A\n");
    102}
    103static SLAVE_ATTR_RO(ad_partner_oper_port_state);
    104
    105static const struct attribute *slave_attrs[] = {
    106	&slave_attr_state.attr,
    107	&slave_attr_mii_status.attr,
    108	&slave_attr_link_failure_count.attr,
    109	&slave_attr_perm_hwaddr.attr,
    110	&slave_attr_queue_id.attr,
    111	&slave_attr_ad_aggregator_id.attr,
    112	&slave_attr_ad_actor_oper_port_state.attr,
    113	&slave_attr_ad_partner_oper_port_state.attr,
    114	NULL
    115};
    116
    117#define to_slave_attr(_at) container_of(_at, struct slave_attribute, attr)
    118
    119static ssize_t slave_show(struct kobject *kobj,
    120			  struct attribute *attr, char *buf)
    121{
    122	struct slave_attribute *slave_attr = to_slave_attr(attr);
    123	struct slave *slave = to_slave(kobj);
    124
    125	return slave_attr->show(slave, buf);
    126}
    127
    128const struct sysfs_ops slave_sysfs_ops = {
    129	.show = slave_show,
    130};
    131
    132int bond_sysfs_slave_add(struct slave *slave)
    133{
    134	return sysfs_create_files(&slave->kobj, slave_attrs);
    135}
    136
    137void bond_sysfs_slave_del(struct slave *slave)
    138{
    139	sysfs_remove_files(&slave->kobj, slave_attrs);
    140}