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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iavf.h (20636B)


      1/* SPDX-License-Identifier: GPL-2.0 */
      2/* Copyright(c) 2013 - 2018 Intel Corporation. */
      3
      4#ifndef _IAVF_H_
      5#define _IAVF_H_
      6
      7#include <linux/module.h>
      8#include <linux/pci.h>
      9#include <linux/aer.h>
     10#include <linux/netdevice.h>
     11#include <linux/vmalloc.h>
     12#include <linux/interrupt.h>
     13#include <linux/ethtool.h>
     14#include <linux/if_vlan.h>
     15#include <linux/ip.h>
     16#include <linux/tcp.h>
     17#include <linux/sctp.h>
     18#include <linux/ipv6.h>
     19#include <linux/kernel.h>
     20#include <linux/bitops.h>
     21#include <linux/timer.h>
     22#include <linux/workqueue.h>
     23#include <linux/wait.h>
     24#include <linux/delay.h>
     25#include <linux/gfp.h>
     26#include <linux/skbuff.h>
     27#include <linux/dma-mapping.h>
     28#include <linux/etherdevice.h>
     29#include <linux/socket.h>
     30#include <linux/jiffies.h>
     31#include <net/ip6_checksum.h>
     32#include <net/pkt_cls.h>
     33#include <net/udp.h>
     34#include <net/tc_act/tc_gact.h>
     35#include <net/tc_act/tc_mirred.h>
     36
     37#include "iavf_type.h"
     38#include <linux/avf/virtchnl.h>
     39#include "iavf_txrx.h"
     40#include "iavf_fdir.h"
     41#include "iavf_adv_rss.h"
     42#include <linux/bitmap.h>
     43
     44#define DEFAULT_DEBUG_LEVEL_SHIFT 3
     45#define PFX "iavf: "
     46
     47int iavf_status_to_errno(enum iavf_status status);
     48int virtchnl_status_to_errno(enum virtchnl_status_code v_status);
     49
     50/* VSI state flags shared with common code */
     51enum iavf_vsi_state_t {
     52	__IAVF_VSI_DOWN,
     53	/* This must be last as it determines the size of the BITMAP */
     54	__IAVF_VSI_STATE_SIZE__,
     55};
     56
     57/* dummy struct to make common code less painful */
     58struct iavf_vsi {
     59	struct iavf_adapter *back;
     60	struct net_device *netdev;
     61	unsigned long active_cvlans[BITS_TO_LONGS(VLAN_N_VID)];
     62	unsigned long active_svlans[BITS_TO_LONGS(VLAN_N_VID)];
     63	u16 seid;
     64	u16 id;
     65	DECLARE_BITMAP(state, __IAVF_VSI_STATE_SIZE__);
     66	int base_vector;
     67	u16 work_limit;
     68	u16 qs_handle;
     69	void *priv;     /* client driver data reference. */
     70};
     71
     72/* How many Rx Buffers do we bundle into one write to the hardware ? */
     73#define IAVF_RX_BUFFER_WRITE	16	/* Must be power of 2 */
     74#define IAVF_DEFAULT_TXD	512
     75#define IAVF_DEFAULT_RXD	512
     76#define IAVF_MAX_TXD		4096
     77#define IAVF_MIN_TXD		64
     78#define IAVF_MAX_RXD		4096
     79#define IAVF_MIN_RXD		64
     80#define IAVF_REQ_DESCRIPTOR_MULTIPLE	32
     81#define IAVF_MAX_AQ_BUF_SIZE	4096
     82#define IAVF_AQ_LEN		32
     83#define IAVF_AQ_MAX_ERR	20 /* times to try before resetting AQ */
     84
     85#define MAXIMUM_ETHERNET_VLAN_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)
     86
     87#define IAVF_RX_DESC(R, i) (&(((union iavf_32byte_rx_desc *)((R)->desc))[i]))
     88#define IAVF_TX_DESC(R, i) (&(((struct iavf_tx_desc *)((R)->desc))[i]))
     89#define IAVF_TX_CTXTDESC(R, i) \
     90	(&(((struct iavf_tx_context_desc *)((R)->desc))[i]))
     91#define IAVF_MAX_REQ_QUEUES 16
     92
     93#define IAVF_HKEY_ARRAY_SIZE ((IAVF_VFQF_HKEY_MAX_INDEX + 1) * 4)
     94#define IAVF_HLUT_ARRAY_SIZE ((IAVF_VFQF_HLUT_MAX_INDEX + 1) * 4)
     95#define IAVF_MBPS_DIVISOR	125000 /* divisor to convert to Mbps */
     96
     97#define IAVF_VIRTCHNL_VF_RESOURCE_SIZE (sizeof(struct virtchnl_vf_resource) + \
     98					(IAVF_MAX_VF_VSI * \
     99					 sizeof(struct virtchnl_vsi_resource)))
    100
    101/* MAX_MSIX_Q_VECTORS of these are allocated,
    102 * but we only use one per queue-specific vector.
    103 */
    104struct iavf_q_vector {
    105	struct iavf_adapter *adapter;
    106	struct iavf_vsi *vsi;
    107	struct napi_struct napi;
    108	struct iavf_ring_container rx;
    109	struct iavf_ring_container tx;
    110	u32 ring_mask;
    111	u8 itr_countdown;	/* when 0 should adjust adaptive ITR */
    112	u8 num_ringpairs;	/* total number of ring pairs in vector */
    113	u16 v_idx;		/* index in the vsi->q_vector array. */
    114	u16 reg_idx;		/* register index of the interrupt */
    115	char name[IFNAMSIZ + 15];
    116	bool arm_wb_state;
    117	cpumask_t affinity_mask;
    118	struct irq_affinity_notify affinity_notify;
    119};
    120
    121/* Helper macros to switch between ints/sec and what the register uses.
    122 * And yes, it's the same math going both ways.  The lowest value
    123 * supported by all of the iavf hardware is 8.
    124 */
    125#define EITR_INTS_PER_SEC_TO_REG(_eitr) \
    126	((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8)
    127#define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG
    128
    129#define IAVF_DESC_UNUSED(R) \
    130	((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
    131	(R)->next_to_clean - (R)->next_to_use - 1)
    132
    133#define OTHER_VECTOR 1
    134#define NONQ_VECS (OTHER_VECTOR)
    135
    136#define MIN_MSIX_Q_VECTORS 1
    137#define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NONQ_VECS)
    138
    139#define IAVF_QUEUE_END_OF_LIST 0x7FF
    140#define IAVF_FREE_VECTOR 0x7FFF
    141struct iavf_mac_filter {
    142	struct list_head list;
    143	u8 macaddr[ETH_ALEN];
    144	struct {
    145		u8 is_new_mac:1;    /* filter is new, wait for PF decision */
    146		u8 remove:1;        /* filter needs to be removed */
    147		u8 add:1;           /* filter needs to be added */
    148		u8 is_primary:1;    /* filter is a default VF MAC */
    149		u8 padding:4;
    150	};
    151};
    152
    153#define IAVF_VLAN(vid, tpid) ((struct iavf_vlan){ vid, tpid })
    154struct iavf_vlan {
    155	u16 vid;
    156	u16 tpid;
    157};
    158
    159struct iavf_vlan_filter {
    160	struct list_head list;
    161	struct iavf_vlan vlan;
    162	bool remove;		/* filter needs to be removed */
    163	bool add;		/* filter needs to be added */
    164};
    165
    166#define IAVF_MAX_TRAFFIC_CLASS	4
    167/* State of traffic class creation */
    168enum iavf_tc_state_t {
    169	__IAVF_TC_INVALID, /* no traffic class, default state */
    170	__IAVF_TC_RUNNING, /* traffic classes have been created */
    171};
    172
    173/* channel info */
    174struct iavf_channel_config {
    175	struct virtchnl_channel_info ch_info[IAVF_MAX_TRAFFIC_CLASS];
    176	enum iavf_tc_state_t state;
    177	u8 total_qps;
    178};
    179
    180/* State of cloud filter */
    181enum iavf_cloud_filter_state_t {
    182	__IAVF_CF_INVALID,	 /* cloud filter not added */
    183	__IAVF_CF_ADD_PENDING, /* cloud filter pending add by the PF */
    184	__IAVF_CF_DEL_PENDING, /* cloud filter pending del by the PF */
    185	__IAVF_CF_ACTIVE,	 /* cloud filter is active */
    186};
    187
    188/* Driver state. The order of these is important! */
    189enum iavf_state_t {
    190	__IAVF_STARTUP,		/* driver loaded, probe complete */
    191	__IAVF_REMOVE,		/* driver is being unloaded */
    192	__IAVF_INIT_VERSION_CHECK,	/* aq msg sent, awaiting reply */
    193	__IAVF_INIT_GET_RESOURCES,	/* aq msg sent, awaiting reply */
    194	__IAVF_INIT_EXTENDED_CAPS,	/* process extended caps which require aq msg exchange */
    195	__IAVF_INIT_CONFIG_ADAPTER,
    196	__IAVF_INIT_SW,		/* got resources, setting up structs */
    197	__IAVF_INIT_FAILED,	/* init failed, restarting procedure */
    198	__IAVF_RESETTING,		/* in reset */
    199	__IAVF_COMM_FAILED,		/* communication with PF failed */
    200	/* Below here, watchdog is running */
    201	__IAVF_DOWN,			/* ready, can be opened */
    202	__IAVF_DOWN_PENDING,		/* descending, waiting for watchdog */
    203	__IAVF_TESTING,		/* in ethtool self-test */
    204	__IAVF_RUNNING,		/* opened, working */
    205};
    206
    207enum iavf_critical_section_t {
    208	__IAVF_IN_REMOVE_TASK,	/* device being removed */
    209};
    210
    211#define IAVF_CLOUD_FIELD_OMAC		0x01
    212#define IAVF_CLOUD_FIELD_IMAC		0x02
    213#define IAVF_CLOUD_FIELD_IVLAN	0x04
    214#define IAVF_CLOUD_FIELD_TEN_ID	0x08
    215#define IAVF_CLOUD_FIELD_IIP		0x10
    216
    217#define IAVF_CF_FLAGS_OMAC	IAVF_CLOUD_FIELD_OMAC
    218#define IAVF_CF_FLAGS_IMAC	IAVF_CLOUD_FIELD_IMAC
    219#define IAVF_CF_FLAGS_IMAC_IVLAN	(IAVF_CLOUD_FIELD_IMAC |\
    220					 IAVF_CLOUD_FIELD_IVLAN)
    221#define IAVF_CF_FLAGS_IMAC_TEN_ID	(IAVF_CLOUD_FIELD_IMAC |\
    222					 IAVF_CLOUD_FIELD_TEN_ID)
    223#define IAVF_CF_FLAGS_OMAC_TEN_ID_IMAC	(IAVF_CLOUD_FIELD_OMAC |\
    224						 IAVF_CLOUD_FIELD_IMAC |\
    225						 IAVF_CLOUD_FIELD_TEN_ID)
    226#define IAVF_CF_FLAGS_IMAC_IVLAN_TEN_ID	(IAVF_CLOUD_FIELD_IMAC |\
    227						 IAVF_CLOUD_FIELD_IVLAN |\
    228						 IAVF_CLOUD_FIELD_TEN_ID)
    229#define IAVF_CF_FLAGS_IIP	IAVF_CLOUD_FIELD_IIP
    230
    231/* bookkeeping of cloud filters */
    232struct iavf_cloud_filter {
    233	enum iavf_cloud_filter_state_t state;
    234	struct list_head list;
    235	struct virtchnl_filter f;
    236	unsigned long cookie;
    237	bool del;		/* filter needs to be deleted */
    238	bool add;		/* filter needs to be added */
    239};
    240
    241#define IAVF_RESET_WAIT_MS 10
    242#define IAVF_RESET_WAIT_DETECTED_COUNT 500
    243#define IAVF_RESET_WAIT_COMPLETE_COUNT 2000
    244
    245/* board specific private data structure */
    246struct iavf_adapter {
    247	struct work_struct reset_task;
    248	struct work_struct adminq_task;
    249	struct delayed_work client_task;
    250	wait_queue_head_t down_waitqueue;
    251	struct iavf_q_vector *q_vectors;
    252	struct list_head vlan_filter_list;
    253	struct list_head mac_filter_list;
    254	struct mutex crit_lock;
    255	struct mutex client_lock;
    256	/* Lock to protect accesses to MAC and VLAN lists */
    257	spinlock_t mac_vlan_list_lock;
    258	char misc_vector_name[IFNAMSIZ + 9];
    259	int num_active_queues;
    260	int num_req_queues;
    261
    262	/* TX */
    263	struct iavf_ring *tx_rings;
    264	u32 tx_timeout_count;
    265	u32 tx_desc_count;
    266
    267	/* RX */
    268	struct iavf_ring *rx_rings;
    269	u64 hw_csum_rx_error;
    270	u32 rx_desc_count;
    271	int num_msix_vectors;
    272	int num_iwarp_msix;
    273	int iwarp_base_vector;
    274	u32 client_pending;
    275	struct iavf_client_instance *cinst;
    276	struct msix_entry *msix_entries;
    277
    278	u32 flags;
    279#define IAVF_FLAG_RX_CSUM_ENABLED		BIT(0)
    280#define IAVF_FLAG_PF_COMMS_FAILED		BIT(3)
    281#define IAVF_FLAG_RESET_PENDING		BIT(4)
    282#define IAVF_FLAG_RESET_NEEDED		BIT(5)
    283#define IAVF_FLAG_WB_ON_ITR_CAPABLE		BIT(6)
    284#define IAVF_FLAG_SERVICE_CLIENT_REQUESTED	BIT(9)
    285#define IAVF_FLAG_CLIENT_NEEDS_OPEN		BIT(10)
    286#define IAVF_FLAG_CLIENT_NEEDS_CLOSE		BIT(11)
    287#define IAVF_FLAG_CLIENT_NEEDS_L2_PARAMS	BIT(12)
    288#define IAVF_FLAG_PROMISC_ON			BIT(13)
    289#define IAVF_FLAG_ALLMULTI_ON			BIT(14)
    290#define IAVF_FLAG_LEGACY_RX			BIT(15)
    291#define IAVF_FLAG_REINIT_ITR_NEEDED		BIT(16)
    292#define IAVF_FLAG_QUEUES_DISABLED		BIT(17)
    293#define IAVF_FLAG_SETUP_NETDEV_FEATURES		BIT(18)
    294#define IAVF_FLAG_REINIT_MSIX_NEEDED		BIT(20)
    295/* duplicates for common code */
    296#define IAVF_FLAG_DCB_ENABLED			0
    297	/* flags for admin queue service task */
    298	u64 aq_required;
    299#define IAVF_FLAG_AQ_ENABLE_QUEUES		BIT_ULL(0)
    300#define IAVF_FLAG_AQ_DISABLE_QUEUES		BIT_ULL(1)
    301#define IAVF_FLAG_AQ_ADD_MAC_FILTER		BIT_ULL(2)
    302#define IAVF_FLAG_AQ_ADD_VLAN_FILTER		BIT_ULL(3)
    303#define IAVF_FLAG_AQ_DEL_MAC_FILTER		BIT_ULL(4)
    304#define IAVF_FLAG_AQ_DEL_VLAN_FILTER		BIT_ULL(5)
    305#define IAVF_FLAG_AQ_CONFIGURE_QUEUES		BIT_ULL(6)
    306#define IAVF_FLAG_AQ_MAP_VECTORS		BIT_ULL(7)
    307#define IAVF_FLAG_AQ_HANDLE_RESET		BIT_ULL(8)
    308#define IAVF_FLAG_AQ_CONFIGURE_RSS		BIT_ULL(9) /* direct AQ config */
    309#define IAVF_FLAG_AQ_GET_CONFIG			BIT_ULL(10)
    310/* Newer style, RSS done by the PF so we can ignore hardware vagaries. */
    311#define IAVF_FLAG_AQ_GET_HENA			BIT_ULL(11)
    312#define IAVF_FLAG_AQ_SET_HENA			BIT_ULL(12)
    313#define IAVF_FLAG_AQ_SET_RSS_KEY		BIT_ULL(13)
    314#define IAVF_FLAG_AQ_SET_RSS_LUT		BIT_ULL(14)
    315#define IAVF_FLAG_AQ_REQUEST_PROMISC		BIT_ULL(15)
    316#define IAVF_FLAG_AQ_RELEASE_PROMISC		BIT_ULL(16)
    317#define IAVF_FLAG_AQ_REQUEST_ALLMULTI		BIT_ULL(17)
    318#define IAVF_FLAG_AQ_RELEASE_ALLMULTI		BIT_ULL(18)
    319#define IAVF_FLAG_AQ_ENABLE_VLAN_STRIPPING	BIT_ULL(19)
    320#define IAVF_FLAG_AQ_DISABLE_VLAN_STRIPPING	BIT_ULL(20)
    321#define IAVF_FLAG_AQ_ENABLE_CHANNELS		BIT_ULL(21)
    322#define IAVF_FLAG_AQ_DISABLE_CHANNELS		BIT_ULL(22)
    323#define IAVF_FLAG_AQ_ADD_CLOUD_FILTER		BIT_ULL(23)
    324#define IAVF_FLAG_AQ_DEL_CLOUD_FILTER		BIT_ULL(24)
    325#define IAVF_FLAG_AQ_ADD_FDIR_FILTER		BIT_ULL(25)
    326#define IAVF_FLAG_AQ_DEL_FDIR_FILTER		BIT_ULL(26)
    327#define IAVF_FLAG_AQ_ADD_ADV_RSS_CFG		BIT_ULL(27)
    328#define IAVF_FLAG_AQ_DEL_ADV_RSS_CFG		BIT_ULL(28)
    329#define IAVF_FLAG_AQ_REQUEST_STATS		BIT_ULL(29)
    330#define IAVF_FLAG_AQ_GET_OFFLOAD_VLAN_V2_CAPS	BIT_ULL(30)
    331#define IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_STRIPPING		BIT_ULL(31)
    332#define IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_STRIPPING	BIT_ULL(32)
    333#define IAVF_FLAG_AQ_ENABLE_STAG_VLAN_STRIPPING		BIT_ULL(33)
    334#define IAVF_FLAG_AQ_DISABLE_STAG_VLAN_STRIPPING	BIT_ULL(34)
    335#define IAVF_FLAG_AQ_ENABLE_CTAG_VLAN_INSERTION		BIT_ULL(35)
    336#define IAVF_FLAG_AQ_DISABLE_CTAG_VLAN_INSERTION	BIT_ULL(36)
    337#define IAVF_FLAG_AQ_ENABLE_STAG_VLAN_INSERTION		BIT_ULL(37)
    338#define IAVF_FLAG_AQ_DISABLE_STAG_VLAN_INSERTION	BIT_ULL(38)
    339
    340	/* flags for processing extended capability messages during
    341	 * __IAVF_INIT_EXTENDED_CAPS. Each capability exchange requires
    342	 * both a SEND and a RECV step, which must be processed in sequence.
    343	 *
    344	 * During the __IAVF_INIT_EXTENDED_CAPS state, the driver will
    345	 * process one flag at a time during each state loop.
    346	 */
    347	u64 extended_caps;
    348#define IAVF_EXTENDED_CAP_SEND_VLAN_V2			BIT_ULL(0)
    349#define IAVF_EXTENDED_CAP_RECV_VLAN_V2			BIT_ULL(1)
    350
    351#define IAVF_EXTENDED_CAPS				\
    352	(IAVF_EXTENDED_CAP_SEND_VLAN_V2 |		\
    353	 IAVF_EXTENDED_CAP_RECV_VLAN_V2)
    354
    355	/* OS defined structs */
    356	struct net_device *netdev;
    357	struct pci_dev *pdev;
    358
    359	struct iavf_hw hw; /* defined in iavf_type.h */
    360
    361	enum iavf_state_t state;
    362	enum iavf_state_t last_state;
    363	unsigned long crit_section;
    364
    365	struct delayed_work watchdog_task;
    366	bool netdev_registered;
    367	bool link_up;
    368	enum virtchnl_link_speed link_speed;
    369	/* This is only populated if the VIRTCHNL_VF_CAP_ADV_LINK_SPEED is set
    370	 * in vf_res->vf_cap_flags. Use ADV_LINK_SUPPORT macro to determine if
    371	 * this field is valid. This field should be used going forward and the
    372	 * enum virtchnl_link_speed above should be considered the legacy way of
    373	 * storing/communicating link speeds.
    374	 */
    375	u32 link_speed_mbps;
    376
    377	enum virtchnl_ops current_op;
    378#define CLIENT_ALLOWED(_a) ((_a)->vf_res ? \
    379			    (_a)->vf_res->vf_cap_flags & \
    380				VIRTCHNL_VF_OFFLOAD_IWARP : \
    381			    0)
    382#define CLIENT_ENABLED(_a) ((_a)->cinst)
    383/* RSS by the PF should be preferred over RSS via other methods. */
    384#define RSS_PF(_a) ((_a)->vf_res->vf_cap_flags & \
    385		    VIRTCHNL_VF_OFFLOAD_RSS_PF)
    386#define RSS_AQ(_a) ((_a)->vf_res->vf_cap_flags & \
    387		    VIRTCHNL_VF_OFFLOAD_RSS_AQ)
    388#define RSS_REG(_a) (!((_a)->vf_res->vf_cap_flags & \
    389		       (VIRTCHNL_VF_OFFLOAD_RSS_AQ | \
    390			VIRTCHNL_VF_OFFLOAD_RSS_PF)))
    391#define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
    392			  VIRTCHNL_VF_OFFLOAD_VLAN)
    393#define VLAN_V2_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \
    394			     VIRTCHNL_VF_OFFLOAD_VLAN_V2)
    395#define VLAN_V2_FILTERING_ALLOWED(_a) \
    396	(VLAN_V2_ALLOWED((_a)) && \
    397	 ((_a)->vlan_v2_caps.filtering.filtering_support.outer || \
    398	  (_a)->vlan_v2_caps.filtering.filtering_support.inner))
    399#define VLAN_FILTERING_ALLOWED(_a) \
    400	(VLAN_ALLOWED((_a)) || VLAN_V2_FILTERING_ALLOWED((_a)))
    401#define ADV_LINK_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
    402			      VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
    403#define FDIR_FLTR_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
    404			       VIRTCHNL_VF_OFFLOAD_FDIR_PF)
    405#define ADV_RSS_SUPPORT(_a) ((_a)->vf_res->vf_cap_flags & \
    406			     VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF)
    407	struct virtchnl_vf_resource *vf_res; /* incl. all VSIs */
    408	struct virtchnl_vsi_resource *vsi_res; /* our LAN VSI */
    409	struct virtchnl_version_info pf_version;
    410#define PF_IS_V11(_a) (((_a)->pf_version.major == 1) && \
    411		       ((_a)->pf_version.minor == 1))
    412	struct virtchnl_vlan_caps vlan_v2_caps;
    413	u16 msg_enable;
    414	struct iavf_eth_stats current_stats;
    415	struct iavf_vsi vsi;
    416	u32 aq_wait_count;
    417	/* RSS stuff */
    418	u64 hena;
    419	u16 rss_key_size;
    420	u16 rss_lut_size;
    421	u8 *rss_key;
    422	u8 *rss_lut;
    423	/* ADQ related members */
    424	struct iavf_channel_config ch_config;
    425	u8 num_tc;
    426	struct list_head cloud_filter_list;
    427	/* lock to protect access to the cloud filter list */
    428	spinlock_t cloud_filter_list_lock;
    429	u16 num_cloud_filters;
    430
    431#define IAVF_MAX_FDIR_FILTERS 128	/* max allowed Flow Director filters */
    432	u16 fdir_active_fltr;
    433	struct list_head fdir_list_head;
    434	spinlock_t fdir_fltr_lock;	/* protect the Flow Director filter list */
    435
    436	struct list_head adv_rss_list_head;
    437	spinlock_t adv_rss_lock;	/* protect the RSS management list */
    438};
    439
    440
    441/* Ethtool Private Flags */
    442
    443/* lan device, used by client interface */
    444struct iavf_device {
    445	struct list_head list;
    446	struct iavf_adapter *vf;
    447};
    448
    449/* needed by iavf_ethtool.c */
    450extern char iavf_driver_name[];
    451extern struct workqueue_struct *iavf_wq;
    452
    453static inline const char *iavf_state_str(enum iavf_state_t state)
    454{
    455	switch (state) {
    456	case __IAVF_STARTUP:
    457		return "__IAVF_STARTUP";
    458	case __IAVF_REMOVE:
    459		return "__IAVF_REMOVE";
    460	case __IAVF_INIT_VERSION_CHECK:
    461		return "__IAVF_INIT_VERSION_CHECK";
    462	case __IAVF_INIT_GET_RESOURCES:
    463		return "__IAVF_INIT_GET_RESOURCES";
    464	case __IAVF_INIT_SW:
    465		return "__IAVF_INIT_SW";
    466	case __IAVF_INIT_FAILED:
    467		return "__IAVF_INIT_FAILED";
    468	case __IAVF_RESETTING:
    469		return "__IAVF_RESETTING";
    470	case __IAVF_COMM_FAILED:
    471		return "__IAVF_COMM_FAILED";
    472	case __IAVF_DOWN:
    473		return "__IAVF_DOWN";
    474	case __IAVF_DOWN_PENDING:
    475		return "__IAVF_DOWN_PENDING";
    476	case __IAVF_TESTING:
    477		return "__IAVF_TESTING";
    478	case __IAVF_RUNNING:
    479		return "__IAVF_RUNNING";
    480	default:
    481		return "__IAVF_UNKNOWN_STATE";
    482	}
    483}
    484
    485static inline void iavf_change_state(struct iavf_adapter *adapter,
    486				     enum iavf_state_t state)
    487{
    488	if (adapter->state != state) {
    489		adapter->last_state = adapter->state;
    490		adapter->state = state;
    491	}
    492	dev_dbg(&adapter->pdev->dev,
    493		"state transition from:%s to:%s\n",
    494		iavf_state_str(adapter->last_state),
    495		iavf_state_str(adapter->state));
    496}
    497
    498int iavf_up(struct iavf_adapter *adapter);
    499void iavf_down(struct iavf_adapter *adapter);
    500int iavf_process_config(struct iavf_adapter *adapter);
    501int iavf_parse_vf_resource_msg(struct iavf_adapter *adapter);
    502void iavf_schedule_reset(struct iavf_adapter *adapter);
    503void iavf_schedule_request_stats(struct iavf_adapter *adapter);
    504void iavf_reset(struct iavf_adapter *adapter);
    505void iavf_set_ethtool_ops(struct net_device *netdev);
    506void iavf_update_stats(struct iavf_adapter *adapter);
    507void iavf_reset_interrupt_capability(struct iavf_adapter *adapter);
    508int iavf_init_interrupt_scheme(struct iavf_adapter *adapter);
    509void iavf_irq_enable_queues(struct iavf_adapter *adapter, u32 mask);
    510void iavf_free_all_tx_resources(struct iavf_adapter *adapter);
    511void iavf_free_all_rx_resources(struct iavf_adapter *adapter);
    512
    513void iavf_napi_add_all(struct iavf_adapter *adapter);
    514void iavf_napi_del_all(struct iavf_adapter *adapter);
    515
    516int iavf_send_api_ver(struct iavf_adapter *adapter);
    517int iavf_verify_api_ver(struct iavf_adapter *adapter);
    518int iavf_send_vf_config_msg(struct iavf_adapter *adapter);
    519int iavf_get_vf_config(struct iavf_adapter *adapter);
    520int iavf_get_vf_vlan_v2_caps(struct iavf_adapter *adapter);
    521int iavf_send_vf_offload_vlan_v2_msg(struct iavf_adapter *adapter);
    522void iavf_set_queue_vlan_tag_loc(struct iavf_adapter *adapter);
    523void iavf_irq_enable(struct iavf_adapter *adapter, bool flush);
    524void iavf_configure_queues(struct iavf_adapter *adapter);
    525void iavf_deconfigure_queues(struct iavf_adapter *adapter);
    526void iavf_enable_queues(struct iavf_adapter *adapter);
    527void iavf_disable_queues(struct iavf_adapter *adapter);
    528void iavf_map_queues(struct iavf_adapter *adapter);
    529int iavf_request_queues(struct iavf_adapter *adapter, int num);
    530void iavf_add_ether_addrs(struct iavf_adapter *adapter);
    531void iavf_del_ether_addrs(struct iavf_adapter *adapter);
    532void iavf_add_vlans(struct iavf_adapter *adapter);
    533void iavf_del_vlans(struct iavf_adapter *adapter);
    534void iavf_set_promiscuous(struct iavf_adapter *adapter, int flags);
    535void iavf_request_stats(struct iavf_adapter *adapter);
    536int iavf_request_reset(struct iavf_adapter *adapter);
    537void iavf_get_hena(struct iavf_adapter *adapter);
    538void iavf_set_hena(struct iavf_adapter *adapter);
    539void iavf_set_rss_key(struct iavf_adapter *adapter);
    540void iavf_set_rss_lut(struct iavf_adapter *adapter);
    541void iavf_enable_vlan_stripping(struct iavf_adapter *adapter);
    542void iavf_disable_vlan_stripping(struct iavf_adapter *adapter);
    543void iavf_virtchnl_completion(struct iavf_adapter *adapter,
    544			      enum virtchnl_ops v_opcode,
    545			      enum iavf_status v_retval, u8 *msg, u16 msglen);
    546int iavf_config_rss(struct iavf_adapter *adapter);
    547int iavf_lan_add_device(struct iavf_adapter *adapter);
    548int iavf_lan_del_device(struct iavf_adapter *adapter);
    549void iavf_client_subtask(struct iavf_adapter *adapter);
    550void iavf_notify_client_message(struct iavf_vsi *vsi, u8 *msg, u16 len);
    551void iavf_notify_client_l2_params(struct iavf_vsi *vsi);
    552void iavf_notify_client_open(struct iavf_vsi *vsi);
    553void iavf_notify_client_close(struct iavf_vsi *vsi, bool reset);
    554void iavf_enable_channels(struct iavf_adapter *adapter);
    555void iavf_disable_channels(struct iavf_adapter *adapter);
    556void iavf_add_cloud_filter(struct iavf_adapter *adapter);
    557void iavf_del_cloud_filter(struct iavf_adapter *adapter);
    558void iavf_enable_vlan_stripping_v2(struct iavf_adapter *adapter, u16 tpid);
    559void iavf_disable_vlan_stripping_v2(struct iavf_adapter *adapter, u16 tpid);
    560void iavf_enable_vlan_insertion_v2(struct iavf_adapter *adapter, u16 tpid);
    561void iavf_disable_vlan_insertion_v2(struct iavf_adapter *adapter, u16 tpid);
    562void
    563iavf_set_vlan_offload_features(struct iavf_adapter *adapter,
    564			       netdev_features_t prev_features,
    565			       netdev_features_t features);
    566void iavf_add_fdir_filter(struct iavf_adapter *adapter);
    567void iavf_del_fdir_filter(struct iavf_adapter *adapter);
    568void iavf_add_adv_rss_cfg(struct iavf_adapter *adapter);
    569void iavf_del_adv_rss_cfg(struct iavf_adapter *adapter);
    570struct iavf_mac_filter *iavf_add_filter(struct iavf_adapter *adapter,
    571					const u8 *macaddr);
    572int iavf_lock_timeout(struct mutex *lock, unsigned int msecs);
    573#endif /* _IAVF_H_ */