drivers/net/ethernet/cavium/thunder/nic.h

   1 /*
   2  * Copyright (C) 2015 Cavium, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of version 2 of the GNU General Public License
   6  * as published by the Free Software Foundation.
   7  */
   8
   9 #ifndef NIC_H
  10 #define NIC_H
  11
  12 #include <linux/netdevice.h>
  13 #include <linux/interrupt.h>
  14 #include <linux/pci.h>
  15 #include "thunder_bgx.h"
  16
  17 /* PCI device IDs */
  18 #define PCI_DEVICE_ID_THUNDER_NIC_PF            0xA01E
  19 #define PCI_DEVICE_ID_THUNDER_PASS1_NIC_VF      0x0011
  20 #define PCI_DEVICE_ID_THUNDER_NIC_VF            0xA034
  21 #define PCI_DEVICE_ID_THUNDER_BGX               0xA026
  22
  23 /* Subsystem device IDs */
  24 #define PCI_SUBSYS_DEVID_88XX_NIC_PF            0xA11E
  25 #define PCI_SUBSYS_DEVID_81XX_NIC_PF            0xA21E
  26 #define PCI_SUBSYS_DEVID_83XX_NIC_PF            0xA31E
  27
  28 #define PCI_SUBSYS_DEVID_88XX_PASS1_NIC_VF      0xA11E
  29 #define PCI_SUBSYS_DEVID_88XX_NIC_VF            0xA134
  30 #define PCI_SUBSYS_DEVID_81XX_NIC_VF            0xA234
  31 #define PCI_SUBSYS_DEVID_83XX_NIC_VF            0xA334
  32
  33
  34 /* PCI BAR nos */
  35 #define PCI_CFG_REG_BAR_NUM             0
  36 #define PCI_MSIX_REG_BAR_NUM            4
  37
  38 /* NIC SRIOV VF count */
  39 #define MAX_NUM_VFS_SUPPORTED           128
  40 #define DEFAULT_NUM_VF_ENABLED          8
  41
  42 #define NIC_TNS_BYPASS_MODE             0
  43 #define NIC_TNS_MODE                    1
  44
  45 /* NIC priv flags */
  46 #define NIC_SRIOV_ENABLED               BIT(0)
  47
  48 /* Min/Max packet size */
  49 #define NIC_HW_MIN_FRS                  64
  50 #define NIC_HW_MAX_FRS                  9190 /* Excluding L2 header and FCS */
  51
  52 /* Max pkinds */
  53 #define NIC_MAX_PKIND                   16
  54
  55 /* Max when CPI_ALG is IP diffserv */
  56 #define NIC_MAX_CPI_PER_LMAC            64
  57
  58 /* NIC VF Interrupts */
  59 #define NICVF_INTR_CQ                   0
  60 #define NICVF_INTR_SQ                   1
  61 #define NICVF_INTR_RBDR                 2
  62 #define NICVF_INTR_PKT_DROP             3
  63 #define NICVF_INTR_TCP_TIMER            4
  64 #define NICVF_INTR_MBOX                 5
  65 #define NICVF_INTR_QS_ERR               6
  66
  67 #define NICVF_INTR_CQ_SHIFT             0
  68 #define NICVF_INTR_SQ_SHIFT             8
  69 #define NICVF_INTR_RBDR_SHIFT           16
  70 #define NICVF_INTR_PKT_DROP_SHIFT       20
  71 #define NICVF_INTR_TCP_TIMER_SHIFT      21
  72 #define NICVF_INTR_MBOX_SHIFT           22
  73 #define NICVF_INTR_QS_ERR_SHIFT         23
  74
  75 #define NICVF_INTR_CQ_MASK              (0xFF << NICVF_INTR_CQ_SHIFT)
  76 #define NICVF_INTR_SQ_MASK              (0xFF << NICVF_INTR_SQ_SHIFT)
  77 #define NICVF_INTR_RBDR_MASK            (0x03 << NICVF_INTR_RBDR_SHIFT)
  78 #define NICVF_INTR_PKT_DROP_MASK        BIT(NICVF_INTR_PKT_DROP_SHIFT)
  79 #define NICVF_INTR_TCP_TIMER_MASK       BIT(NICVF_INTR_TCP_TIMER_SHIFT)
  80 #define NICVF_INTR_MBOX_MASK            BIT(NICVF_INTR_MBOX_SHIFT)
  81 #define NICVF_INTR_QS_ERR_MASK          BIT(NICVF_INTR_QS_ERR_SHIFT)
  82
  83 /* MSI-X interrupts */
  84 #define NIC_PF_MSIX_VECTORS             10
  85 #define NIC_VF_MSIX_VECTORS             20
  86
  87 #define NIC_PF_INTR_ID_ECC0_SBE         0
  88 #define NIC_PF_INTR_ID_ECC0_DBE         1
  89 #define NIC_PF_INTR_ID_ECC1_SBE         2
  90 #define NIC_PF_INTR_ID_ECC1_DBE         3
  91 #define NIC_PF_INTR_ID_ECC2_SBE         4
  92 #define NIC_PF_INTR_ID_ECC2_DBE         5
  93 #define NIC_PF_INTR_ID_ECC3_SBE         6
  94 #define NIC_PF_INTR_ID_ECC3_DBE         7
  95 #define NIC_PF_INTR_ID_MBOX0            8
  96 #define NIC_PF_INTR_ID_MBOX1            9
  97
  98 /* Minimum FIFO level before all packets for the CQ are dropped
  99  *
 100  * This value ensures that once a packet has been "accepted"
 101  * for reception it will not get dropped due to non-availability
 102  * of CQ descriptor. An errata in HW mandates this value to be
 103  * atleast 0x100.
 104  */
 105 #define NICPF_CQM_MIN_DROP_LEVEL       0x100
 106
 107 /* Global timer for CQ timer thresh interrupts
 108  * Calculated for SCLK of 700Mhz
 109  * value written should be a 1/16th of what is expected
 110  *
 111  * 1 tick per 0.025usec
 112  */
 113 #define NICPF_CLK_PER_INT_TICK          1
 114
 115 /* Time to wait before we decide that a SQ is stuck.
 116  *
 117  * Since both pkt rx and tx notifications are done with same CQ,
 118  * when packets are being received at very high rate (eg: L2 forwarding)
 119  * then freeing transmitted skbs will be delayed and watchdog
 120  * will kick in, resetting interface. Hence keeping this value high.
 121  */
 122 #define NICVF_TX_TIMEOUT                (50 * HZ)
 123
 124 struct nicvf_cq_poll {
 125         struct  nicvf *nicvf;
 126         u8      cq_idx;         /* Completion queue index */
 127         struct  napi_struct napi;
 128 };
 129
 130 #define NIC_MAX_RSS_HASH_BITS           8
 131 #define NIC_MAX_RSS_IDR_TBL_SIZE        (1 << NIC_MAX_RSS_HASH_BITS)
 132 #define RSS_HASH_KEY_SIZE               5 /* 320 bit key */
 133
 134 struct nicvf_rss_info {
 135         bool enable;
 136 #define RSS_L2_EXTENDED_HASH_ENA        BIT(0)
 137 #define RSS_IP_HASH_ENA                 BIT(1)
 138 #define RSS_TCP_HASH_ENA                BIT(2)
 139 #define RSS_TCP_SYN_DIS                 BIT(3)
 140 #define RSS_UDP_HASH_ENA                BIT(4)
 141 #define RSS_L4_EXTENDED_HASH_ENA        BIT(5)
 142 #define RSS_ROCE_ENA                    BIT(6)
 143 #define RSS_L3_BI_DIRECTION_ENA         BIT(7)
 144 #define RSS_L4_BI_DIRECTION_ENA         BIT(8)
 145         u64 cfg;
 146         u8  hash_bits;
 147         u16 rss_size;
 148         u8  ind_tbl[NIC_MAX_RSS_IDR_TBL_SIZE];
 149         u64 key[RSS_HASH_KEY_SIZE];
 150 } ____cacheline_aligned_in_smp;
 151
 152 struct nicvf_pfc {
 153         u8    autoneg;
 154         u8    fc_rx;
 155         u8    fc_tx;
 156 };
 157
 158 enum rx_stats_reg_offset {
 159         RX_OCTS = 0x0,
 160         RX_UCAST = 0x1,
 161         RX_BCAST = 0x2,
 162         RX_MCAST = 0x3,
 163         RX_RED = 0x4,
 164         RX_RED_OCTS = 0x5,
 165         RX_ORUN = 0x6,
 166         RX_ORUN_OCTS = 0x7,
 167         RX_FCS = 0x8,
 168         RX_L2ERR = 0x9,
 169         RX_DRP_BCAST = 0xa,
 170         RX_DRP_MCAST = 0xb,
 171         RX_DRP_L3BCAST = 0xc,
 172         RX_DRP_L3MCAST = 0xd,
 173         RX_STATS_ENUM_LAST,
 174 };
 175
 176 enum tx_stats_reg_offset {
 177         TX_OCTS = 0x0,
 178         TX_UCAST = 0x1,
 179         TX_BCAST = 0x2,
 180         TX_MCAST = 0x3,
 181         TX_DROP = 0x4,
 182         TX_STATS_ENUM_LAST,
 183 };
 184
 185 struct nicvf_hw_stats {
 186         u64 rx_bytes;
 187         u64 rx_frames;
 188         u64 rx_ucast_frames;
 189         u64 rx_bcast_frames;
 190         u64 rx_mcast_frames;
 191         u64 rx_drops;
 192         u64 rx_drop_red;
 193         u64 rx_drop_red_bytes;
 194         u64 rx_drop_overrun;
 195         u64 rx_drop_overrun_bytes;
 196         u64 rx_drop_bcast;
 197         u64 rx_drop_mcast;
 198         u64 rx_drop_l3_bcast;
 199         u64 rx_drop_l3_mcast;
 200         u64 rx_fcs_errors;
 201         u64 rx_l2_errors;
 202
 203         u64 tx_bytes;
 204         u64 tx_frames;
 205         u64 tx_ucast_frames;
 206         u64 tx_bcast_frames;
 207         u64 tx_mcast_frames;
 208         u64 tx_drops;
 209 };
 210
 211 struct nicvf_drv_stats {
 212         /* CQE Rx errs */
 213         u64 rx_bgx_truncated_pkts;
 214         u64 rx_jabber_errs;
 215         u64 rx_fcs_errs;
 216         u64 rx_bgx_errs;
 217         u64 rx_prel2_errs;
 218         u64 rx_l2_hdr_malformed;
 219         u64 rx_oversize;
 220         u64 rx_undersize;
 221         u64 rx_l2_len_mismatch;
 222         u64 rx_l2_pclp;
 223         u64 rx_ip_ver_errs;
 224         u64 rx_ip_csum_errs;
 225         u64 rx_ip_hdr_malformed;
 226         u64 rx_ip_payload_malformed;
 227         u64 rx_ip_ttl_errs;
 228         u64 rx_l3_pclp;
 229         u64 rx_l4_malformed;
 230         u64 rx_l4_csum_errs;
 231         u64 rx_udp_len_errs;
 232         u64 rx_l4_port_errs;
 233         u64 rx_tcp_flag_errs;
 234         u64 rx_tcp_offset_errs;
 235         u64 rx_l4_pclp;
 236         u64 rx_truncated_pkts;
 237
 238         /* CQE Tx errs */
 239         u64 tx_desc_fault;
 240         u64 tx_hdr_cons_err;
 241         u64 tx_subdesc_err;
 242         u64 tx_max_size_exceeded;
 243         u64 tx_imm_size_oflow;
 244         u64 tx_data_seq_err;
 245         u64 tx_mem_seq_err;
 246         u64 tx_lock_viol;
 247         u64 tx_data_fault;
 248         u64 tx_tstmp_conflict;
 249         u64 tx_tstmp_timeout;
 250         u64 tx_mem_fault;
 251         u64 tx_csum_overlap;
 252         u64 tx_csum_overflow;
 253
 254         /* driver debug stats */
 255         u64 tx_tso;
 256         u64 tx_timeout;
 257         u64 txq_stop;
 258         u64 txq_wake;
 259
 260         u64 rcv_buffer_alloc_failures;
 261         u64 page_alloc;
 262
 263         struct u64_stats_sync   syncp;
 264 };
 265
 266 struct cavium_ptp;
 267
 268 struct nicvf {
 269         struct nicvf            *pnicvf;
 270         struct net_device       *netdev;
 271         struct pci_dev          *pdev;
 272         void __iomem            *reg_base;
 273         struct bpf_prog         *xdp_prog;
 274 #define MAX_QUEUES_PER_QSET                     8
 275         struct queue_set        *qs;
 276         void                    *iommu_domain;
 277         u8                      vf_id;
 278         u8                      sqs_id;
 279         bool                    sqs_mode;
 280         bool                    hw_tso;
 281         bool                    t88;
 282
 283         /* Receive buffer alloc */
 284         u32                     rb_page_offset;
 285         u16                     rb_pageref;
 286         bool                    rb_alloc_fail;
 287         bool                    rb_work_scheduled;
 288         struct page             *rb_page;
 289         struct delayed_work     rbdr_work;
 290         struct tasklet_struct   rbdr_task;
 291
 292         /* Secondary Qset */
 293         u8                      sqs_count;
 294 #define MAX_SQS_PER_VF_SINGLE_NODE              5
 295 #define MAX_SQS_PER_VF                          11
 296         struct nicvf            *snicvf[MAX_SQS_PER_VF];
 297
 298         /* Queue count */
 299         u8                      rx_queues;
 300         u8                      tx_queues;
 301         u8                      xdp_tx_queues;
 302         u8                      max_queues;
 303
 304         u8                      node;
 305         u8                      cpi_alg;
 306         bool                    link_up;
 307         u8                      mac_type;
 308         u8                      duplex;
 309         u32                     speed;
 310         bool                    tns_mode;
 311         bool                    loopback_supported;
 312         struct nicvf_rss_info   rss_info;
 313         struct nicvf_pfc        pfc;
 314         struct tasklet_struct   qs_err_task;
 315         struct work_struct      reset_task;
 316
 317         /* PTP timestamp */
 318         struct cavium_ptp       *ptp_clock;
 319         /* Inbound timestamping is on */
 320         bool                    hw_rx_tstamp;
 321         /* When the packet that requires timestamping is sent, hardware inserts
 322          * two entries to the completion queue.  First is the regular
 323          * CQE_TYPE_SEND entry that signals that the packet was sent.
 324          * The second is CQE_TYPE_SEND_PTP that contains the actual timestamp
 325          * for that packet.
 326          * `ptp_skb` is initialized in the handler for the CQE_TYPE_SEND
 327          * entry and is used and zeroed in the handler for the CQE_TYPE_SEND_PTP
 328          * entry.
 329          * So `ptp_skb` is used to hold the pointer to the packet between
 330          * the calls to CQE_TYPE_SEND and CQE_TYPE_SEND_PTP handlers.
 331          */
 332         struct sk_buff          *ptp_skb;
 333         /* `tx_ptp_skbs` is set when the hardware is sending a packet that
 334          * requires timestamping.  Cavium hardware can not process more than one
 335          * such packet at once so this is set each time the driver submits
 336          * a packet that requires timestamping to the send queue and clears
 337          * each time it receives the entry on the completion queue saying
 338          * that such packet was sent.
 339          * So `tx_ptp_skbs` prevents driver from submitting more than one
 340          * packet that requires timestamping to the hardware for transmitting.
 341          */
 342         atomic_t                tx_ptp_skbs;
 343
 344         /* Interrupt coalescing settings */
 345         u32                     cq_coalesce_usecs;
 346         u32                     msg_enable;
 347
 348         /* Stats */
 349         struct nicvf_hw_stats   hw_stats;
 350         struct nicvf_drv_stats  __percpu *drv_stats;
 351         struct bgx_stats        bgx_stats;
 352
 353         /* Napi */
 354         struct nicvf_cq_poll    *napi[8];
 355
 356         /* MSI-X  */
 357         u8                      num_vec;
 358         char                    irq_name[NIC_VF_MSIX_VECTORS][IFNAMSIZ + 15];
 359         bool                    irq_allocated[NIC_VF_MSIX_VECTORS];
 360         cpumask_var_t           affinity_mask[NIC_VF_MSIX_VECTORS];
 361
 362         /* VF <-> PF mailbox communication */
 363         bool                    pf_acked;
 364         bool                    pf_nacked;
 365         bool                    set_mac_pending;
 366 } ____cacheline_aligned_in_smp;
 367
 368 /* PF <--> VF Mailbox communication
 369  * Eight 64bit registers are shared between PF and VF.
 370  * Separate set for each VF.
 371  * Writing '1' into last register mbx7 means end of message.
 372  */
 373
 374 /* PF <--> VF mailbox communication */
 375 #define NIC_PF_VF_MAILBOX_SIZE          2
 376 #define NIC_MBOX_MSG_TIMEOUT            2000 /* ms */
 377
 378 /* Mailbox message types */
 379 #define NIC_MBOX_MSG_READY              0x01    /* Is PF ready to rcv msgs */
 380 #define NIC_MBOX_MSG_ACK                0x02    /* ACK the message received */
 381 #define NIC_MBOX_MSG_NACK               0x03    /* NACK the message received */
 382 #define NIC_MBOX_MSG_QS_CFG             0x04    /* Configure Qset */
 383 #define NIC_MBOX_MSG_RQ_CFG             0x05    /* Configure receive queue */
 384 #define NIC_MBOX_MSG_SQ_CFG             0x06    /* Configure Send queue */
 385 #define NIC_MBOX_MSG_RQ_DROP_CFG        0x07    /* Configure receive queue */
 386 #define NIC_MBOX_MSG_SET_MAC            0x08    /* Add MAC ID to DMAC filter */
 387 #define NIC_MBOX_MSG_SET_MAX_FRS        0x09    /* Set max frame size */
 388 #define NIC_MBOX_MSG_CPI_CFG            0x0A    /* Config CPI, RSSI */
 389 #define NIC_MBOX_MSG_RSS_SIZE           0x0B    /* Get RSS indir_tbl size */
 390 #define NIC_MBOX_MSG_RSS_CFG            0x0C    /* Config RSS table */
 391 #define NIC_MBOX_MSG_RSS_CFG_CONT       0x0D    /* RSS config continuation */
 392 #define NIC_MBOX_MSG_RQ_BP_CFG          0x0E    /* RQ backpressure config */
 393 #define NIC_MBOX_MSG_RQ_SW_SYNC         0x0F    /* Flush inflight pkts to RQ */
 394 #define NIC_MBOX_MSG_BGX_STATS          0x10    /* Get stats from BGX */
 395 #define NIC_MBOX_MSG_BGX_LINK_CHANGE    0x11    /* BGX:LMAC link status */
 396 #define NIC_MBOX_MSG_ALLOC_SQS          0x12    /* Allocate secondary Qset */
 397 #define NIC_MBOX_MSG_NICVF_PTR          0x13    /* Send nicvf ptr to PF */
 398 #define NIC_MBOX_MSG_PNICVF_PTR         0x14    /* Get primary qset nicvf ptr */
 399 #define NIC_MBOX_MSG_SNICVF_PTR         0x15    /* Send sqet nicvf ptr to PVF */
 400 #define NIC_MBOX_MSG_LOOPBACK           0x16    /* Set interface in loopback */
 401 #define NIC_MBOX_MSG_RESET_STAT_COUNTER 0x17    /* Reset statistics counters */
 402 #define NIC_MBOX_MSG_PFC                0x18    /* Pause frame control */
 403 #define NIC_MBOX_MSG_PTP_CFG            0x19    /* HW packet timestamp */
 404 #define NIC_MBOX_MSG_CFG_DONE           0xF0    /* VF configuration done */
 405 #define NIC_MBOX_MSG_SHUTDOWN           0xF1    /* VF is being shutdown */
 406
 407 struct nic_cfg_msg {
 408         u8    msg;
 409         u8    vf_id;
 410         u8    node_id;
 411         u8    tns_mode:1;
 412         u8    sqs_mode:1;
 413         u8    loopback_supported:1;
 414         u8    mac_addr[ETH_ALEN];
 415 };
 416
 417 /* Qset configuration */
 418 struct qs_cfg_msg {
 419         u8    msg;
 420         u8    num;
 421         u8    sqs_count;
 422         u64   cfg;
 423 };
 424
 425 /* Receive queue configuration */
 426 struct rq_cfg_msg {
 427         u8    msg;
 428         u8    qs_num;
 429         u8    rq_num;
 430         u64   cfg;
 431 };
 432
 433 /* Send queue configuration */
 434 struct sq_cfg_msg {
 435         u8    msg;
 436         u8    qs_num;
 437         u8    sq_num;
 438         bool  sqs_mode;
 439         u64   cfg;
 440 };
 441
 442 /* Set VF's MAC address */
 443 struct set_mac_msg {
 444         u8    msg;
 445         u8    vf_id;
 446         u8    mac_addr[ETH_ALEN];
 447 };
 448
 449 /* Set Maximum frame size */
 450 struct set_frs_msg {
 451         u8    msg;
 452         u8    vf_id;
 453         u16   max_frs;
 454 };
 455
 456 /* Set CPI algorithm type */
 457 struct cpi_cfg_msg {
 458         u8    msg;
 459         u8    vf_id;
 460         u8    rq_cnt;
 461         u8    cpi_alg;
 462 };
 463
 464 /* Get RSS table size */
 465 struct rss_sz_msg {
 466         u8    msg;
 467         u8    vf_id;
 468         u16   ind_tbl_size;
 469 };
 470
 471 /* Set RSS configuration */
 472 struct rss_cfg_msg {
 473         u8    msg;
 474         u8    vf_id;
 475         u8    hash_bits;
 476         u8    tbl_len;
 477         u8    tbl_offset;
 478 #define RSS_IND_TBL_LEN_PER_MBX_MSG     8
 479         u8    ind_tbl[RSS_IND_TBL_LEN_PER_MBX_MSG];
 480 };
 481
 482 struct bgx_stats_msg {
 483         u8    msg;
 484         u8    vf_id;
 485         u8    rx;
 486         u8    idx;
 487         u64   stats;
 488 };
 489
 490 /* Physical interface link status */
 491 struct bgx_link_status {
 492         u8    msg;
 493         u8    mac_type;
 494         u8    link_up;
 495         u8    duplex;
 496         u32   speed;
 497 };
 498
 499 /* Get Extra Qset IDs */
 500 struct sqs_alloc {
 501         u8    msg;
 502         u8    vf_id;
 503         u8    qs_count;
 504 };
 505
 506 struct nicvf_ptr {
 507         u8    msg;
 508         u8    vf_id;
 509         bool  sqs_mode;
 510         u8    sqs_id;
 511         u64   nicvf;
 512 };
 513
 514 /* Set interface in loopback mode */
 515 struct set_loopback {
 516         u8    msg;
 517         u8    vf_id;
 518         bool  enable;
 519 };
 520
 521 /* Reset statistics counters */
 522 struct reset_stat_cfg {
 523         u8    msg;
 524         /* Bitmap to select NIC_PF_VNIC(vf_id)_RX_STAT(0..13) */
 525         u16   rx_stat_mask;
 526         /* Bitmap to select NIC_PF_VNIC(vf_id)_TX_STAT(0..4) */
 527         u8    tx_stat_mask;
 528         /* Bitmap to select NIC_PF_QS(0..127)_RQ(0..7)_STAT(0..1)
 529          * bit14, bit15 NIC_PF_QS(vf_id)_RQ7_STAT(0..1)
 530          * bit12, bit13 NIC_PF_QS(vf_id)_RQ6_STAT(0..1)
 531          * ..
 532          * bit2, bit3 NIC_PF_QS(vf_id)_RQ1_STAT(0..1)
 533          * bit0, bit1 NIC_PF_QS(vf_id)_RQ0_STAT(0..1)
 534          */
 535         u16   rq_stat_mask;
 536         /* Bitmap to select NIC_PF_QS(0..127)_SQ(0..7)_STAT(0..1)
 537          * bit14, bit15 NIC_PF_QS(vf_id)_SQ7_STAT(0..1)
 538          * bit12, bit13 NIC_PF_QS(vf_id)_SQ6_STAT(0..1)
 539          * ..
 540          * bit2, bit3 NIC_PF_QS(vf_id)_SQ1_STAT(0..1)
 541          * bit0, bit1 NIC_PF_QS(vf_id)_SQ0_STAT(0..1)
 542          */
 543         u16   sq_stat_mask;
 544 };
 545
 546 struct pfc {
 547         u8    msg;
 548         u8    get; /* Get or set PFC settings */
 549         u8    autoneg;
 550         u8    fc_rx;
 551         u8    fc_tx;
 552 };
 553
 554 struct set_ptp {
 555         u8    msg;
 556         bool  enable;
 557 };
 558
 559 /* 128 bit shared memory between PF and each VF */
 560 union nic_mbx {
 561         struct { u8 msg; }      msg;
 562         struct nic_cfg_msg      nic_cfg;
 563         struct qs_cfg_msg       qs;
 564         struct rq_cfg_msg       rq;
 565         struct sq_cfg_msg       sq;
 566         struct set_mac_msg      mac;
 567         struct set_frs_msg      frs;
 568         struct cpi_cfg_msg      cpi_cfg;
 569         struct rss_sz_msg       rss_size;
 570         struct rss_cfg_msg      rss_cfg;
 571         struct bgx_stats_msg    bgx_stats;
 572         struct bgx_link_status  link_status;
 573         struct sqs_alloc        sqs_alloc;
 574         struct nicvf_ptr        nicvf;
 575         struct set_loopback     lbk;
 576         struct reset_stat_cfg   reset_stat;
 577         struct pfc              pfc;
 578         struct set_ptp          ptp;
 579 };
 580
 581 #define NIC_NODE_ID_MASK        0x03
 582 #define NIC_NODE_ID_SHIFT       44
 583
 584 static inline int nic_get_node_id(struct pci_dev *pdev)
 585 {
 586         u64 addr = pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM);
 587         return ((addr >> NIC_NODE_ID_SHIFT) & NIC_NODE_ID_MASK);
 588 }
 589
 590 static inline bool pass1_silicon(struct pci_dev *pdev)
 591 {
 592         return (pdev->revision < 8) &&
 593                 (pdev->subsystem_device == PCI_SUBSYS_DEVID_88XX_NIC_PF);
 594 }
 595
 596 static inline bool pass2_silicon(struct pci_dev *pdev)
 597 {
 598         return (pdev->revision >= 8) &&
 599                 (pdev->subsystem_device == PCI_SUBSYS_DEVID_88XX_NIC_PF);
 600 }
 601
 602 int nicvf_set_real_num_queues(struct net_device *netdev,
 603                               int tx_queues, int rx_queues);
 604 int nicvf_open(struct net_device *netdev);
 605 int nicvf_stop(struct net_device *netdev);
 606 int nicvf_send_msg_to_pf(struct nicvf *vf, union nic_mbx *mbx);
 607 void nicvf_config_rss(struct nicvf *nic);
 608 void nicvf_set_rss_key(struct nicvf *nic);
 609 void nicvf_set_ethtool_ops(struct net_device *netdev);
 610 void nicvf_update_stats(struct nicvf *nic);
 611 void nicvf_update_lmac_stats(struct nicvf *nic);
 612
 613 #endif /* NIC_H */