linux/drivers/net/ethernet/emulex/benet/be.h
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   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (C) 2005 - 2016 Broadcom
   4 * All rights reserved.
   5 *
   6 * Contact Information:
   7 * linux-drivers@emulex.com
   8 *
   9 * Emulex
  10 * 3333 Susan Street
  11 * Costa Mesa, CA 92626
  12 */
  13
  14#ifndef BE_H
  15#define BE_H
  16
  17#include <linux/pci.h>
  18#include <linux/etherdevice.h>
  19#include <linux/delay.h>
  20#include <net/tcp.h>
  21#include <net/ip.h>
  22#include <net/ipv6.h>
  23#include <linux/if_vlan.h>
  24#include <linux/workqueue.h>
  25#include <linux/interrupt.h>
  26#include <linux/firmware.h>
  27#include <linux/slab.h>
  28#include <linux/u64_stats_sync.h>
  29#include <linux/cpumask.h>
  30#include <linux/hwmon.h>
  31#include <linux/hwmon-sysfs.h>
  32
  33#include "be_hw.h"
  34#include "be_roce.h"
  35
  36#define DRV_NAME                "be2net"
  37#define BE_NAME                 "Emulex BladeEngine2"
  38#define BE3_NAME                "Emulex BladeEngine3"
  39#define OC_NAME                 "Emulex OneConnect"
  40#define OC_NAME_BE              OC_NAME "(be3)"
  41#define OC_NAME_LANCER          OC_NAME "(Lancer)"
  42#define OC_NAME_SH              OC_NAME "(Skyhawk)"
  43#define DRV_DESC                "Emulex OneConnect NIC Driver"
  44
  45#define BE_VENDOR_ID            0x19a2
  46#define EMULEX_VENDOR_ID        0x10df
  47#define BE_DEVICE_ID1           0x211
  48#define BE_DEVICE_ID2           0x221
  49#define OC_DEVICE_ID1           0x700   /* Device Id for BE2 cards */
  50#define OC_DEVICE_ID2           0x710   /* Device Id for BE3 cards */
  51#define OC_DEVICE_ID3           0xe220  /* Device id for Lancer cards */
  52#define OC_DEVICE_ID4           0xe228   /* Device id for VF in Lancer */
  53#define OC_DEVICE_ID5           0x720   /* Device Id for Skyhawk cards */
  54#define OC_DEVICE_ID6           0x728   /* Device id for VF in SkyHawk */
  55#define OC_SUBSYS_DEVICE_ID1    0xE602
  56#define OC_SUBSYS_DEVICE_ID2    0xE642
  57#define OC_SUBSYS_DEVICE_ID3    0xE612
  58#define OC_SUBSYS_DEVICE_ID4    0xE652
  59
  60/* Number of bytes of an RX frame that are copied to skb->data */
  61#define BE_HDR_LEN              ((u16) 64)
  62/* allocate extra space to allow tunneling decapsulation without head reallocation */
  63#define BE_RX_SKB_ALLOC_SIZE    256
  64
  65#define BE_MAX_JUMBO_FRAME_SIZE 9018
  66#define BE_MIN_MTU              256
  67#define BE_MAX_MTU              (BE_MAX_JUMBO_FRAME_SIZE -      \
  68                                 (ETH_HLEN + ETH_FCS_LEN))
  69
  70/* Accommodate for QnQ configurations where VLAN insertion is enabled in HW */
  71#define BE_MAX_GSO_SIZE         (65535 - 2 * VLAN_HLEN)
  72
  73#define BE_NUM_VLANS_SUPPORTED  64
  74#define BE_MAX_EQD              128u
  75#define BE_MAX_TX_FRAG_COUNT    30
  76
  77#define EVNT_Q_LEN              1024
  78#define TX_Q_LEN                2048
  79#define TX_CQ_LEN               1024
  80#define RX_Q_LEN                1024    /* Does not support any other value */
  81#define RX_CQ_LEN               1024
  82#define MCC_Q_LEN               128     /* total size not to exceed 8 pages */
  83#define MCC_CQ_LEN              256
  84
  85#define BE2_MAX_RSS_QS          4
  86#define BE3_MAX_RSS_QS          16
  87#define BE3_MAX_TX_QS           16
  88#define BE3_MAX_EVT_QS          16
  89#define BE3_SRIOV_MAX_EVT_QS    8
  90#define SH_VF_MAX_NIC_EQS       3       /* Skyhawk VFs can have a max of 4 EQs
  91                                         * and at least 1 is granted to either
  92                                         * SURF/DPDK
  93                                         */
  94
  95#define MAX_PORT_RSS_TABLES     15
  96#define MAX_NIC_FUNCS           16
  97#define MAX_RX_QS               32
  98#define MAX_EVT_QS              32
  99#define MAX_TX_QS               32
 100
 101#define MAX_ROCE_EQS            5
 102#define MAX_MSIX_VECTORS        32
 103#define MIN_MSIX_VECTORS        1
 104#define BE_NAPI_WEIGHT          64
 105#define MAX_RX_POST             BE_NAPI_WEIGHT /* Frags posted at a time */
 106#define RX_FRAGS_REFILL_WM      (RX_Q_LEN - MAX_RX_POST)
 107#define MAX_NUM_POST_ERX_DB     255u
 108
 109#define MAX_VFS                 30 /* Max VFs supported by BE3 FW */
 110#define FW_VER_LEN              32
 111#define CNTL_SERIAL_NUM_WORDS   8  /* Controller serial number words */
 112#define CNTL_SERIAL_NUM_WORD_SZ (sizeof(u16)) /* Byte-sz of serial num word */
 113
 114#define RSS_INDIR_TABLE_LEN     128
 115#define RSS_HASH_KEY_LEN        40
 116
 117#define BE_UNKNOWN_PHY_STATE    0xFF
 118
 119struct be_dma_mem {
 120        void *va;
 121        dma_addr_t dma;
 122        u32 size;
 123};
 124
 125struct be_queue_info {
 126        u32 len;
 127        u32 entry_size; /* Size of an element in the queue */
 128        u32 tail, head;
 129        atomic_t used;  /* Number of valid elements in the queue */
 130        u32 id;
 131        struct be_dma_mem dma_mem;
 132        bool created;
 133};
 134
 135static inline u32 MODULO(u32 val, u32 limit)
 136{
 137        BUG_ON(limit & (limit - 1));
 138        return val & (limit - 1);
 139}
 140
 141static inline void index_adv(u32 *index, u32 val, u32 limit)
 142{
 143        *index = MODULO((*index + val), limit);
 144}
 145
 146static inline void index_inc(u32 *index, u32 limit)
 147{
 148        *index = MODULO((*index + 1), limit);
 149}
 150
 151static inline void *queue_head_node(struct be_queue_info *q)
 152{
 153        return q->dma_mem.va + q->head * q->entry_size;
 154}
 155
 156static inline void *queue_tail_node(struct be_queue_info *q)
 157{
 158        return q->dma_mem.va + q->tail * q->entry_size;
 159}
 160
 161static inline void *queue_index_node(struct be_queue_info *q, u16 index)
 162{
 163        return q->dma_mem.va + index * q->entry_size;
 164}
 165
 166static inline void queue_head_inc(struct be_queue_info *q)
 167{
 168        index_inc(&q->head, q->len);
 169}
 170
 171static inline void index_dec(u32 *index, u32 limit)
 172{
 173        *index = MODULO((*index - 1), limit);
 174}
 175
 176static inline void queue_tail_inc(struct be_queue_info *q)
 177{
 178        index_inc(&q->tail, q->len);
 179}
 180
 181struct be_eq_obj {
 182        struct be_queue_info q;
 183        char desc[32];
 184
 185        struct be_adapter *adapter;
 186        struct napi_struct napi;
 187        u8 idx;                 /* array index */
 188        u8 msix_idx;
 189        u16 spurious_intr;
 190        cpumask_var_t  affinity_mask;
 191} ____cacheline_aligned_in_smp;
 192
 193struct be_aic_obj {             /* Adaptive interrupt coalescing (AIC) info */
 194        u32 min_eqd;            /* in usecs */
 195        u32 max_eqd;            /* in usecs */
 196        u32 prev_eqd;           /* in usecs */
 197        u32 et_eqd;             /* configured val when aic is off */
 198        ulong jiffies;
 199        u64 rx_pkts_prev;       /* Used to calculate RX pps */
 200        u64 tx_reqs_prev;       /* Used to calculate TX pps */
 201};
 202
 203struct be_mcc_obj {
 204        struct be_queue_info q;
 205        struct be_queue_info cq;
 206        bool rearm_cq;
 207};
 208
 209struct be_tx_stats {
 210        u64 tx_bytes;
 211        u64 tx_pkts;
 212        u64 tx_vxlan_offload_pkts;
 213        u64 tx_reqs;
 214        u64 tx_compl;
 215        u32 tx_stops;
 216        u32 tx_drv_drops;       /* pkts dropped by driver */
 217        /* the error counters are described in be_ethtool.c */
 218        u32 tx_hdr_parse_err;
 219        u32 tx_dma_err;
 220        u32 tx_tso_err;
 221        u32 tx_spoof_check_err;
 222        u32 tx_qinq_err;
 223        u32 tx_internal_parity_err;
 224        u32 tx_sge_err;
 225        struct u64_stats_sync sync;
 226        struct u64_stats_sync sync_compl;
 227};
 228
 229/* Structure to hold some data of interest obtained from a TX CQE */
 230struct be_tx_compl_info {
 231        u8 status;              /* Completion status */
 232        u16 end_index;          /* Completed TXQ Index */
 233};
 234
 235struct be_tx_obj {
 236        u32 db_offset;
 237        struct be_tx_compl_info txcp;
 238        struct be_queue_info q;
 239        struct be_queue_info cq;
 240        /* Remember the skbs that were transmitted */
 241        struct sk_buff *sent_skb_list[TX_Q_LEN];
 242        struct be_tx_stats stats;
 243        u16 pend_wrb_cnt;       /* Number of WRBs yet to be given to HW */
 244        u16 last_req_wrb_cnt;   /* wrb cnt of the last req in the Q */
 245        u16 last_req_hdr;       /* index of the last req's hdr-wrb */
 246} ____cacheline_aligned_in_smp;
 247
 248/* Struct to remember the pages posted for rx frags */
 249struct be_rx_page_info {
 250        struct page *page;
 251        /* set to page-addr for last frag of the page & frag-addr otherwise */
 252        DEFINE_DMA_UNMAP_ADDR(bus);
 253        u16 page_offset;
 254        bool last_frag;         /* last frag of the page */
 255};
 256
 257struct be_rx_stats {
 258        u64 rx_bytes;
 259        u64 rx_pkts;
 260        u64 rx_vxlan_offload_pkts;
 261        u32 rx_drops_no_skbs;   /* skb allocation errors */
 262        u32 rx_drops_no_frags;  /* HW has no fetched frags */
 263        u32 rx_post_fail;       /* page post alloc failures */
 264        u32 rx_compl;
 265        u32 rx_mcast_pkts;
 266        u32 rx_compl_err;       /* completions with err set */
 267        struct u64_stats_sync sync;
 268};
 269
 270struct be_rx_compl_info {
 271        u32 rss_hash;
 272        u16 vlan_tag;
 273        u16 pkt_size;
 274        u16 port;
 275        u8 vlanf;
 276        u8 num_rcvd;
 277        u8 err;
 278        u8 ipf;
 279        u8 tcpf;
 280        u8 udpf;
 281        u8 ip_csum;
 282        u8 l4_csum;
 283        u8 ipv6;
 284        u8 qnq;
 285        u8 pkt_type;
 286        u8 ip_frag;
 287        u8 tunneled;
 288};
 289
 290struct be_rx_obj {
 291        struct be_adapter *adapter;
 292        struct be_queue_info q;
 293        struct be_queue_info cq;
 294        struct be_rx_compl_info rxcp;
 295        struct be_rx_page_info page_info_tbl[RX_Q_LEN];
 296        struct be_rx_stats stats;
 297        u8 rss_id;
 298        bool rx_post_starved;   /* Zero rx frags have been posted to BE */
 299} ____cacheline_aligned_in_smp;
 300
 301struct be_drv_stats {
 302        u32 eth_red_drops;
 303        u32 dma_map_errors;
 304        u32 rx_drops_no_pbuf;
 305        u32 rx_drops_no_txpb;
 306        u32 rx_drops_no_erx_descr;
 307        u32 rx_drops_no_tpre_descr;
 308        u32 rx_drops_too_many_frags;
 309        u32 forwarded_packets;
 310        u32 rx_drops_mtu;
 311        u32 rx_crc_errors;
 312        u32 rx_alignment_symbol_errors;
 313        u32 rx_pause_frames;
 314        u32 rx_priority_pause_frames;
 315        u32 rx_control_frames;
 316        u32 rx_in_range_errors;
 317        u32 rx_out_range_errors;
 318        u32 rx_frame_too_long;
 319        u32 rx_address_filtered;
 320        u32 rx_dropped_too_small;
 321        u32 rx_dropped_too_short;
 322        u32 rx_dropped_header_too_small;
 323        u32 rx_dropped_tcp_length;
 324        u32 rx_dropped_runt;
 325        u32 rx_ip_checksum_errs;
 326        u32 rx_tcp_checksum_errs;
 327        u32 rx_udp_checksum_errs;
 328        u32 tx_pauseframes;
 329        u32 tx_priority_pauseframes;
 330        u32 tx_controlframes;
 331        u32 rxpp_fifo_overflow_drop;
 332        u32 rx_input_fifo_overflow_drop;
 333        u32 pmem_fifo_overflow_drop;
 334        u32 jabber_events;
 335        u32 rx_roce_bytes_lsd;
 336        u32 rx_roce_bytes_msd;
 337        u32 rx_roce_frames;
 338        u32 roce_drops_payload_len;
 339        u32 roce_drops_crc;
 340};
 341
 342/* A vlan-id of 0xFFFF must be used to clear transparent vlan-tagging */
 343#define BE_RESET_VLAN_TAG_ID    0xFFFF
 344
 345struct be_vf_cfg {
 346        unsigned char mac_addr[ETH_ALEN];
 347        int if_handle;
 348        int pmac_id;
 349        u16 vlan_tag;
 350        u32 tx_rate;
 351        u32 plink_tracking;
 352        u32 privileges;
 353        bool spoofchk;
 354};
 355
 356enum vf_state {
 357        ENABLED = 0,
 358        ASSIGNED = 1
 359};
 360
 361#define BE_FLAGS_LINK_STATUS_INIT               BIT(1)
 362#define BE_FLAGS_SRIOV_ENABLED                  BIT(2)
 363#define BE_FLAGS_WORKER_SCHEDULED               BIT(3)
 364#define BE_FLAGS_NAPI_ENABLED                   BIT(6)
 365#define BE_FLAGS_QNQ_ASYNC_EVT_RCVD             BIT(7)
 366#define BE_FLAGS_VXLAN_OFFLOADS                 BIT(8)
 367#define BE_FLAGS_SETUP_DONE                     BIT(9)
 368#define BE_FLAGS_PHY_MISCONFIGURED              BIT(10)
 369#define BE_FLAGS_ERR_DETECTION_SCHEDULED        BIT(11)
 370#define BE_FLAGS_OS2BMC                         BIT(12)
 371#define BE_FLAGS_TRY_RECOVERY                   BIT(13)
 372
 373#define BE_UC_PMAC_COUNT                        30
 374#define BE_VF_UC_PMAC_COUNT                     2
 375
 376#define MAX_ERR_RECOVERY_RETRY_COUNT            3
 377#define ERR_DETECTION_DELAY                     1000
 378
 379/* Ethtool set_dump flags */
 380#define LANCER_INITIATE_FW_DUMP                 0x1
 381#define LANCER_DELETE_FW_DUMP                   0x2
 382
 383struct phy_info {
 384/* From SFF-8472 spec */
 385#define SFP_VENDOR_NAME_LEN                     17
 386        u8 transceiver;
 387        u8 autoneg;
 388        u8 fc_autoneg;
 389        u8 port_type;
 390        u16 phy_type;
 391        u16 interface_type;
 392        u32 misc_params;
 393        u16 auto_speeds_supported;
 394        u16 fixed_speeds_supported;
 395        int link_speed;
 396        u32 advertising;
 397        u32 supported;
 398        u8 cable_type;
 399        u8 vendor_name[SFP_VENDOR_NAME_LEN];
 400        u8 vendor_pn[SFP_VENDOR_NAME_LEN];
 401};
 402
 403struct be_resources {
 404        u16 max_vfs;            /* Total VFs "really" supported by FW/HW */
 405        u16 max_mcast_mac;
 406        u16 max_tx_qs;
 407        u16 max_rss_qs;
 408        u16 max_rx_qs;
 409        u16 max_cq_count;
 410        u16 max_uc_mac;         /* Max UC MACs programmable */
 411        u16 max_vlans;          /* Number of vlans supported */
 412        u16 max_iface_count;
 413        u16 max_mcc_count;
 414        u16 max_evt_qs;
 415        u16 max_nic_evt_qs;     /* NIC's share of evt qs */
 416        u32 if_cap_flags;
 417        u32 vf_if_cap_flags;    /* VF if capability flags */
 418        u32 flags;
 419        /* Calculated PF Pool's share of RSS Tables. This is not enforced by
 420         * the FW, but is a self-imposed driver limitation.
 421         */
 422        u16 max_rss_tables;
 423};
 424
 425/* These are port-wide values */
 426struct be_port_resources {
 427        u16 max_vfs;
 428        u16 nic_pfs;
 429};
 430
 431#define be_is_os2bmc_enabled(adapter) (adapter->flags & BE_FLAGS_OS2BMC)
 432
 433struct rss_info {
 434        u8 rsstable[RSS_INDIR_TABLE_LEN];
 435        u8 rss_queue[RSS_INDIR_TABLE_LEN];
 436        u8 rss_hkey[RSS_HASH_KEY_LEN];
 437        u64 rss_flags;
 438};
 439
 440#define BE_INVALID_DIE_TEMP     0xFF
 441struct be_hwmon {
 442        struct device *hwmon_dev;
 443        u8 be_on_die_temp;  /* Unit: millidegree Celsius */
 444};
 445
 446/* Macros to read/write the 'features' word of be_wrb_params structure.
 447 */
 448#define BE_WRB_F_BIT(name)                      BE_WRB_F_##name##_BIT
 449#define BE_WRB_F_MASK(name)                     BIT_MASK(BE_WRB_F_##name##_BIT)
 450
 451#define BE_WRB_F_GET(word, name)        \
 452        (((word) & (BE_WRB_F_MASK(name))) >> BE_WRB_F_BIT(name))
 453
 454#define BE_WRB_F_SET(word, name, val)   \
 455        ((word) |= (((val) << BE_WRB_F_BIT(name)) & BE_WRB_F_MASK(name)))
 456
 457/* Feature/offload bits */
 458enum {
 459        BE_WRB_F_CRC_BIT,               /* Ethernet CRC */
 460        BE_WRB_F_IPCS_BIT,              /* IP csum */
 461        BE_WRB_F_TCPCS_BIT,             /* TCP csum */
 462        BE_WRB_F_UDPCS_BIT,             /* UDP csum */
 463        BE_WRB_F_LSO_BIT,               /* LSO */
 464        BE_WRB_F_LSO6_BIT,              /* LSO6 */
 465        BE_WRB_F_VLAN_BIT,              /* VLAN */
 466        BE_WRB_F_VLAN_SKIP_HW_BIT,      /* Skip VLAN tag (workaround) */
 467        BE_WRB_F_OS2BMC_BIT             /* Send packet to the management ring */
 468};
 469
 470/* The structure below provides a HW-agnostic abstraction of WRB params
 471 * retrieved from a TX skb. This is in turn passed to chip specific routines
 472 * during transmit, to set the corresponding params in the WRB.
 473 */
 474struct be_wrb_params {
 475        u32 features;   /* Feature bits */
 476        u16 vlan_tag;   /* VLAN tag */
 477        u16 lso_mss;    /* MSS for LSO */
 478};
 479
 480struct be_eth_addr {
 481        unsigned char mac[ETH_ALEN];
 482};
 483
 484#define BE_SEC  1000                    /* in msec */
 485#define BE_MIN  (60 * BE_SEC)           /* in msec */
 486#define BE_HOUR (60 * BE_MIN)           /* in msec */
 487
 488#define ERR_RECOVERY_MAX_RETRY_COUNT            3
 489#define ERR_RECOVERY_DETECTION_DELAY            BE_SEC
 490#define ERR_RECOVERY_RETRY_DELAY                (30 * BE_SEC)
 491
 492/* UE-detection-duration in BEx/Skyhawk:
 493 * All PFs must wait for this duration after they detect UE before reading
 494 * SLIPORT_SEMAPHORE register. At the end of this duration, the Firmware
 495 * guarantees that the SLIPORT_SEMAPHORE register is updated to indicate
 496 * if the UE is recoverable.
 497 */
 498#define ERR_RECOVERY_UE_DETECT_DURATION                 BE_SEC
 499
 500/* Initial idle time (in msec) to elapse after driver load,
 501 * before UE recovery is allowed.
 502 */
 503#define ERR_IDLE_HR                     24
 504#define ERR_RECOVERY_IDLE_TIME          (ERR_IDLE_HR * BE_HOUR)
 505
 506/* Time interval (in msec) after which UE recovery can be repeated */
 507#define ERR_INTERVAL_HR                 72
 508#define ERR_RECOVERY_INTERVAL           (ERR_INTERVAL_HR * BE_HOUR)
 509
 510/* BEx/SH UE recovery state machine */
 511enum {
 512        ERR_RECOVERY_ST_NONE = 0,               /* No Recovery */
 513        ERR_RECOVERY_ST_DETECT = 1,             /* UE detection duration */
 514        ERR_RECOVERY_ST_RESET = 2,              /* Reset Phase (PF0 only) */
 515        ERR_RECOVERY_ST_PRE_POLL = 3,           /* Pre-Poll Phase (all PFs) */
 516        ERR_RECOVERY_ST_REINIT = 4              /* Re-initialize Phase */
 517};
 518
 519struct be_error_recovery {
 520        union {
 521                u8 recovery_retries;    /* used for Lancer              */
 522                u8 recovery_state;      /* used for BEx and Skyhawk     */
 523        };
 524
 525        /* BEx/Skyhawk error recovery variables */
 526        bool recovery_supported;
 527        u16 ue_to_reset_time;           /* Time after UE, to soft reset
 528                                         * the chip - PF0 only
 529                                         */
 530        u16 ue_to_poll_time;            /* Time after UE, to Restart Polling
 531                                         * of SLIPORT_SEMAPHORE reg
 532                                         */
 533        u16 last_err_code;
 534        unsigned long probe_time;
 535        unsigned long last_recovery_time;
 536
 537        /* Common to both Lancer & BEx/SH error recovery */
 538        u32 resched_delay;
 539        struct delayed_work err_detection_work;
 540};
 541
 542/* Ethtool priv_flags */
 543#define BE_DISABLE_TPE_RECOVERY 0x1
 544
 545struct be_vxlan_port {
 546        struct list_head list;
 547        __be16 port;            /* VxLAN UDP dst port */
 548        int port_aliases;       /* alias count */
 549};
 550
 551struct be_adapter {
 552        struct pci_dev *pdev;
 553        struct net_device *netdev;
 554
 555        u8 __iomem *csr;        /* CSR BAR used only for BE2/3 */
 556        u8 __iomem *db;         /* Door Bell */
 557        u8 __iomem *pcicfg;     /* On SH,BEx only. Shadow of PCI config space */
 558
 559        struct mutex mbox_lock; /* For serializing mbox cmds to BE card */
 560        struct be_dma_mem mbox_mem;
 561        /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
 562         * is stored for freeing purpose */
 563        struct be_dma_mem mbox_mem_alloced;
 564
 565        struct be_mcc_obj mcc_obj;
 566        struct mutex mcc_lock;  /* For serializing mcc cmds to BE card */
 567        spinlock_t mcc_cq_lock;
 568
 569        u16 cfg_num_rx_irqs;            /* configured via set-channels */
 570        u16 cfg_num_tx_irqs;            /* configured via set-channels */
 571        u16 num_evt_qs;
 572        u16 num_msix_vec;
 573        struct be_eq_obj eq_obj[MAX_EVT_QS];
 574        struct msix_entry msix_entries[MAX_MSIX_VECTORS];
 575        bool isr_registered;
 576
 577        /* TX Rings */
 578        u16 num_tx_qs;
 579        struct be_tx_obj tx_obj[MAX_TX_QS];
 580
 581        /* Rx rings */
 582        u16 num_rx_qs;
 583        u16 num_rss_qs;
 584        u16 need_def_rxq;
 585        struct be_rx_obj rx_obj[MAX_RX_QS];
 586        u32 big_page_size;      /* Compounded page size shared by rx wrbs */
 587
 588        struct be_drv_stats drv_stats;
 589        struct be_aic_obj aic_obj[MAX_EVT_QS];
 590        bool aic_enabled;
 591        u8 vlan_prio_bmap;      /* Available Priority BitMap */
 592        u16 recommended_prio_bits;/* Recommended Priority bits in vlan tag */
 593        struct be_dma_mem rx_filter; /* Cmd DMA mem for rx-filter */
 594
 595        struct be_dma_mem stats_cmd;
 596        /* Work queue used to perform periodic tasks like getting statistics */
 597        struct delayed_work work;
 598        u16 work_counter;
 599
 600        u8 recovery_retries;
 601        u8 err_flags;
 602        bool pcicfg_mapped;     /* pcicfg obtained via pci_iomap() */
 603        u32 flags;
 604        u32 cmd_privileges;
 605        /* Ethtool knobs and info */
 606        char fw_ver[FW_VER_LEN];
 607        char fw_on_flash[FW_VER_LEN];
 608
 609        /* IFACE filtering fields */
 610        int if_handle;          /* Used to configure filtering */
 611        u32 if_flags;           /* Interface filtering flags */
 612        u32 *pmac_id;           /* MAC addr handle used by BE card */
 613        struct be_eth_addr *uc_list;/* list of uc-addrs programmed (not perm) */
 614        u32 uc_macs;            /* Count of secondary UC MAC programmed */
 615        struct be_eth_addr *mc_list;/* list of mcast addrs programmed */
 616        u32 mc_count;
 617        unsigned long vids[BITS_TO_LONGS(VLAN_N_VID)];
 618        u16 vlans_added;
 619        bool update_uc_list;
 620        bool update_mc_list;
 621        struct mutex rx_filter_lock;/* For protecting vids[] & mc/uc_list[] */
 622
 623        u32 beacon_state;       /* for set_phys_id */
 624
 625        u32 port_num;
 626        char port_name;
 627        u8 mc_type;
 628        u32 function_mode;
 629        u32 function_caps;
 630        u32 rx_fc;              /* Rx flow control */
 631        u32 tx_fc;              /* Tx flow control */
 632        bool stats_cmd_sent;
 633        struct {
 634                u32 size;
 635                u32 total_size;
 636                u64 io_addr;
 637        } roce_db;
 638        u32 num_msix_roce_vec;
 639        struct ocrdma_dev *ocrdma_dev;
 640        struct list_head entry;
 641
 642        u32 flash_status;
 643        struct completion et_cmd_compl;
 644
 645        struct be_resources pool_res;   /* resources available for the port */
 646        struct be_resources res;        /* resources available for the func */
 647        u16 num_vfs;                    /* Number of VFs provisioned by PF */
 648        u8 pf_num;                      /* Numbering used by FW, starts at 0 */
 649        u8 vf_num;                      /* Numbering used by FW, starts at 1 */
 650        u8 virtfn;
 651        struct be_vf_cfg *vf_cfg;
 652        bool be3_native;
 653        u32 sli_family;
 654        u8 hba_port_num;
 655        u16 pvid;
 656        __be16 vxlan_port;              /* offloaded vxlan port num */
 657        struct phy_info phy;
 658        u8 wol_cap;
 659        bool wol_en;
 660        u16 asic_rev;
 661        u16 qnq_vid;
 662        u32 msg_enable;
 663        int be_get_temp_freq;
 664        struct be_hwmon hwmon_info;
 665        struct rss_info rss_info;
 666        /* Filters for packets that need to be sent to BMC */
 667        u32 bmc_filt_mask;
 668        u32 fat_dump_len;
 669        u16 serial_num[CNTL_SERIAL_NUM_WORDS];
 670        u8 phy_state; /* state of sfp optics (functional, faulted, etc.,) */
 671        u8 dev_mac[ETH_ALEN];
 672        u32 priv_flags; /* ethtool get/set_priv_flags() */
 673        struct be_error_recovery error_recovery;
 674};
 675
 676/* Used for defered FW config cmds. Add fields to this struct as reqd */
 677struct be_cmd_work {
 678        struct work_struct work;
 679        struct be_adapter *adapter;
 680};
 681
 682#define be_physfn(adapter)              (!adapter->virtfn)
 683#define be_virtfn(adapter)              (adapter->virtfn)
 684#define sriov_enabled(adapter)          (adapter->flags &       \
 685                                         BE_FLAGS_SRIOV_ENABLED)
 686
 687#define for_all_vfs(adapter, vf_cfg, i)                                 \
 688        for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs; \
 689                i++, vf_cfg++)
 690
 691#define ON                              1
 692#define OFF                             0
 693
 694#define be_max_vlans(adapter)           (adapter->res.max_vlans)
 695#define be_max_uc(adapter)              (adapter->res.max_uc_mac)
 696#define be_max_mc(adapter)              (adapter->res.max_mcast_mac)
 697#define be_max_vfs(adapter)             (adapter->pool_res.max_vfs)
 698#define be_max_rss(adapter)             (adapter->res.max_rss_qs)
 699#define be_max_txqs(adapter)            (adapter->res.max_tx_qs)
 700#define be_max_prio_txqs(adapter)       (adapter->res.max_prio_tx_qs)
 701#define be_max_rxqs(adapter)            (adapter->res.max_rx_qs)
 702/* Max number of EQs available for the function (NIC + RoCE (if enabled)) */
 703#define be_max_func_eqs(adapter)        (adapter->res.max_evt_qs)
 704/* Max number of EQs available avaialble only for NIC */
 705#define be_max_nic_eqs(adapter)         (adapter->res.max_nic_evt_qs)
 706#define be_if_cap_flags(adapter)        (adapter->res.if_cap_flags)
 707#define be_max_pf_pool_rss_tables(adapter)      \
 708                                (adapter->pool_res.max_rss_tables)
 709/* Max irqs avaialble for NIC */
 710#define be_max_irqs(adapter)            \
 711                        (min_t(u16, be_max_nic_eqs(adapter), num_online_cpus()))
 712
 713/* Max irqs *needed* for RX queues */
 714static inline u16 be_max_rx_irqs(struct be_adapter *adapter)
 715{
 716        /* If no RSS, need atleast one irq for def-RXQ */
 717        u16 num = max_t(u16, be_max_rss(adapter), 1);
 718
 719        return min_t(u16, num, be_max_irqs(adapter));
 720}
 721
 722/* Max irqs *needed* for TX queues */
 723static inline u16 be_max_tx_irqs(struct be_adapter *adapter)
 724{
 725        return min_t(u16, be_max_txqs(adapter), be_max_irqs(adapter));
 726}
 727
 728/* Max irqs *needed* for combined queues */
 729static inline u16 be_max_qp_irqs(struct be_adapter *adapter)
 730{
 731        return min(be_max_tx_irqs(adapter), be_max_rx_irqs(adapter));
 732}
 733
 734/* Max irqs *needed* for RX and TX queues together */
 735static inline u16 be_max_any_irqs(struct be_adapter *adapter)
 736{
 737        return max(be_max_tx_irqs(adapter), be_max_rx_irqs(adapter));
 738}
 739
 740/* Is BE in pvid_tagging mode */
 741#define be_pvid_tagging_enabled(adapter)        (adapter->pvid)
 742
 743/* Is BE in QNQ multi-channel mode */
 744#define be_is_qnq_mode(adapter)         (adapter->function_mode & QNQ_MODE)
 745
 746#ifdef CONFIG_BE2NET_LANCER
 747#define lancer_chip(adapter)    (adapter->pdev->device == OC_DEVICE_ID3 || \
 748                                 adapter->pdev->device == OC_DEVICE_ID4)
 749#else
 750#define lancer_chip(adapter)    (0)
 751#endif /* CONFIG_BE2NET_LANCER */
 752
 753#ifdef CONFIG_BE2NET_SKYHAWK
 754#define skyhawk_chip(adapter)   (adapter->pdev->device == OC_DEVICE_ID5 || \
 755                                 adapter->pdev->device == OC_DEVICE_ID6)
 756#else
 757#define skyhawk_chip(adapter)   (0)
 758#endif /* CONFIG_BE2NET_SKYHAWK */
 759
 760#ifdef CONFIG_BE2NET_BE3
 761#define BE3_chip(adapter)       (adapter->pdev->device == BE_DEVICE_ID2 || \
 762                                 adapter->pdev->device == OC_DEVICE_ID2)
 763#else
 764#define BE3_chip(adapter)       (0)
 765#endif /* CONFIG_BE2NET_BE3 */
 766
 767#ifdef CONFIG_BE2NET_BE2
 768#define BE2_chip(adapter)       (adapter->pdev->device == BE_DEVICE_ID1 || \
 769                                 adapter->pdev->device == OC_DEVICE_ID1)
 770#else
 771#define BE2_chip(adapter)       (0)
 772#endif /* CONFIG_BE2NET_BE2 */
 773
 774#define BEx_chip(adapter)       (BE3_chip(adapter) || BE2_chip(adapter))
 775
 776#define be_roce_supported(adapter)      (skyhawk_chip(adapter) && \
 777                                        (adapter->function_mode & RDMA_ENABLED))
 778
 779extern const struct ethtool_ops be_ethtool_ops;
 780
 781#define msix_enabled(adapter)           (adapter->num_msix_vec > 0)
 782#define num_irqs(adapter)               (msix_enabled(adapter) ?        \
 783                                                adapter->num_msix_vec : 1)
 784#define tx_stats(txo)                   (&(txo)->stats)
 785#define rx_stats(rxo)                   (&(rxo)->stats)
 786
 787/* The default RXQ is the last RXQ */
 788#define default_rxo(adpt)               (&adpt->rx_obj[adpt->num_rx_qs - 1])
 789
 790#define for_all_rx_queues(adapter, rxo, i)                              \
 791        for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;  \
 792                i++, rxo++)
 793
 794#define for_all_rss_queues(adapter, rxo, i)                             \
 795        for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rss_qs; \
 796                i++, rxo++)
 797
 798#define for_all_tx_queues(adapter, txo, i)                              \
 799        for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs;  \
 800                i++, txo++)
 801
 802#define for_all_evt_queues(adapter, eqo, i)                             \
 803        for (i = 0, eqo = &adapter->eq_obj[i]; i < adapter->num_evt_qs; \
 804                i++, eqo++)
 805
 806#define for_all_rx_queues_on_eq(adapter, eqo, rxo, i)                   \
 807        for (i = eqo->idx, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;\
 808                 i += adapter->num_evt_qs, rxo += adapter->num_evt_qs)
 809
 810#define for_all_tx_queues_on_eq(adapter, eqo, txo, i)                   \
 811        for (i = eqo->idx, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs;\
 812                i += adapter->num_evt_qs, txo += adapter->num_evt_qs)
 813
 814#define is_mcc_eqo(eqo)                 (eqo->idx == 0)
 815#define mcc_eqo(adapter)                (&adapter->eq_obj[0])
 816
 817#define PAGE_SHIFT_4K           12
 818#define PAGE_SIZE_4K            (1 << PAGE_SHIFT_4K)
 819
 820/* Returns number of pages spanned by the data starting at the given addr */
 821#define PAGES_4K_SPANNED(_address, size)                                \
 822                ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) +     \
 823                        (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
 824
 825/* Returns bit offset within a DWORD of a bitfield */
 826#define AMAP_BIT_OFFSET(_struct, field)                                 \
 827                (((size_t)&(((_struct *)0)->field))%32)
 828
 829/* Returns the bit mask of the field that is NOT shifted into location. */
 830static inline u32 amap_mask(u32 bitsize)
 831{
 832        return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
 833}
 834
 835static inline void
 836amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
 837{
 838        u32 *dw = (u32 *) ptr + dw_offset;
 839        *dw &= ~(mask << offset);
 840        *dw |= (mask & value) << offset;
 841}
 842
 843#define AMAP_SET_BITS(_struct, field, ptr, val)                         \
 844                amap_set(ptr,                                           \
 845                        offsetof(_struct, field)/32,                    \
 846                        amap_mask(sizeof(((_struct *)0)->field)),       \
 847                        AMAP_BIT_OFFSET(_struct, field),                \
 848                        val)
 849
 850static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
 851{
 852        u32 *dw = (u32 *) ptr;
 853        return mask & (*(dw + dw_offset) >> offset);
 854}
 855
 856#define AMAP_GET_BITS(_struct, field, ptr)                              \
 857                amap_get(ptr,                                           \
 858                        offsetof(_struct, field)/32,                    \
 859                        amap_mask(sizeof(((_struct *)0)->field)),       \
 860                        AMAP_BIT_OFFSET(_struct, field))
 861
 862#define GET_RX_COMPL_V0_BITS(field, ptr)                                \
 863                AMAP_GET_BITS(struct amap_eth_rx_compl_v0, field, ptr)
 864
 865#define GET_RX_COMPL_V1_BITS(field, ptr)                                \
 866                AMAP_GET_BITS(struct amap_eth_rx_compl_v1, field, ptr)
 867
 868#define GET_TX_COMPL_BITS(field, ptr)                                   \
 869                AMAP_GET_BITS(struct amap_eth_tx_compl, field, ptr)
 870
 871#define SET_TX_WRB_HDR_BITS(field, ptr, val)                            \
 872                AMAP_SET_BITS(struct amap_eth_hdr_wrb, field, ptr, val)
 873
 874#define be_dws_cpu_to_le(wrb, len)      swap_dws(wrb, len)
 875#define be_dws_le_to_cpu(wrb, len)      swap_dws(wrb, len)
 876static inline void swap_dws(void *wrb, int len)
 877{
 878#ifdef __BIG_ENDIAN
 879        u32 *dw = wrb;
 880        BUG_ON(len % 4);
 881        do {
 882                *dw = cpu_to_le32(*dw);
 883                dw++;
 884                len -= 4;
 885        } while (len);
 886#endif                          /* __BIG_ENDIAN */
 887}
 888
 889#define be_cmd_status(status)           (status > 0 ? -EIO : status)
 890
 891static inline u8 is_tcp_pkt(struct sk_buff *skb)
 892{
 893        u8 val = 0;
 894
 895        if (ip_hdr(skb)->version == 4)
 896                val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
 897        else if (ip_hdr(skb)->version == 6)
 898                val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
 899
 900        return val;
 901}
 902
 903static inline u8 is_udp_pkt(struct sk_buff *skb)
 904{
 905        u8 val = 0;
 906
 907        if (ip_hdr(skb)->version == 4)
 908                val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
 909        else if (ip_hdr(skb)->version == 6)
 910                val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
 911
 912        return val;
 913}
 914
 915static inline bool is_ipv4_pkt(struct sk_buff *skb)
 916{
 917        return skb->protocol == htons(ETH_P_IP) && ip_hdr(skb)->version == 4;
 918}
 919
 920static inline bool is_ipv6_ext_hdr(struct sk_buff *skb)
 921{
 922        if (ip_hdr(skb)->version == 6)
 923                return ipv6_ext_hdr(ipv6_hdr(skb)->nexthdr);
 924        else
 925                return false;
 926}
 927
 928#define be_error_recovering(adapter)    \
 929                (adapter->flags & BE_FLAGS_TRY_RECOVERY)
 930
 931#define BE_ERROR_EEH            1
 932#define BE_ERROR_UE             BIT(1)
 933#define BE_ERROR_FW             BIT(2)
 934#define BE_ERROR_TX             BIT(3)
 935#define BE_ERROR_HW             (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_TX)
 936#define BE_ERROR_ANY            (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_FW | \
 937                                 BE_ERROR_TX)
 938#define BE_CLEAR_ALL            0xFF
 939
 940static inline u8 be_check_error(struct be_adapter *adapter, u32 err_type)
 941{
 942        return (adapter->err_flags & err_type);
 943}
 944
 945static inline void be_set_error(struct be_adapter *adapter, int err_type)
 946{
 947        struct net_device *netdev = adapter->netdev;
 948
 949        adapter->err_flags |= err_type;
 950        netif_carrier_off(netdev);
 951
 952        dev_info(&adapter->pdev->dev, "%s: Link down\n", netdev->name);
 953}
 954
 955static inline void  be_clear_error(struct be_adapter *adapter, int err_type)
 956{
 957        adapter->err_flags &= ~err_type;
 958}
 959
 960static inline bool be_multi_rxq(const struct be_adapter *adapter)
 961{
 962        return adapter->num_rx_qs > 1;
 963}
 964
 965void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
 966                  u16 num_popped);
 967void be_link_status_update(struct be_adapter *adapter, u8 link_status);
 968void be_parse_stats(struct be_adapter *adapter);
 969int be_load_fw(struct be_adapter *adapter, u8 *func);
 970bool be_is_wol_supported(struct be_adapter *adapter);
 971bool be_pause_supported(struct be_adapter *adapter);
 972u32 be_get_fw_log_level(struct be_adapter *adapter);
 973int be_update_queues(struct be_adapter *adapter);
 974int be_poll(struct napi_struct *napi, int budget);
 975void be_eqd_update(struct be_adapter *adapter, bool force_update);
 976
 977/*
 978 * internal function to initialize-cleanup roce device.
 979 */
 980void be_roce_dev_add(struct be_adapter *);
 981void be_roce_dev_remove(struct be_adapter *);
 982
 983/*
 984 * internal function to open-close roce device during ifup-ifdown.
 985 */
 986void be_roce_dev_shutdown(struct be_adapter *);
 987
 988#endif                          /* BE_H */
 989