drivers/net/ethernet/emulex/benet/be.h

   1 /*
   2  * Copyright (C) 2005 - 2014 Emulex
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation.  The full GNU General
   8  * Public License is included in this distribution in the file called COPYING.
   9  *
  10  * Contact Information:
  11  * linux-drivers@emulex.com
  12  *
  13  * Emulex
  14  * 3333 Susan Street
  15  * Costa Mesa, CA 92626
  16  */
  17
  18 #ifndef BE_H
  19 #define BE_H
  20
  21 #include <linux/pci.h>
  22 #include <linux/etherdevice.h>
  23 #include <linux/delay.h>
  24 #include <net/tcp.h>
  25 #include <net/ip.h>
  26 #include <net/ipv6.h>
  27 #include <linux/if_vlan.h>
  28 #include <linux/workqueue.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/firmware.h>
  31 #include <linux/slab.h>
  32 #include <linux/u64_stats_sync.h>
  33
  34 #include "be_hw.h"
  35 #include "be_roce.h"
  36
  37 #define DRV_VER                 "10.4u"
  38 #define DRV_NAME                "be2net"
  39 #define BE_NAME                 "Emulex BladeEngine2"
  40 #define BE3_NAME                "Emulex BladeEngine3"
  41 #define OC_NAME                 "Emulex OneConnect"
  42 #define OC_NAME_BE              OC_NAME "(be3)"
  43 #define OC_NAME_LANCER          OC_NAME "(Lancer)"
  44 #define OC_NAME_SH              OC_NAME "(Skyhawk)"
  45 #define DRV_DESC                "Emulex OneConnect NIC Driver"
  46
  47 #define BE_VENDOR_ID            0x19a2
  48 #define EMULEX_VENDOR_ID        0x10df
  49 #define BE_DEVICE_ID1           0x211
  50 #define BE_DEVICE_ID2           0x221
  51 #define OC_DEVICE_ID1           0x700   /* Device Id for BE2 cards */
  52 #define OC_DEVICE_ID2           0x710   /* Device Id for BE3 cards */
  53 #define OC_DEVICE_ID3           0xe220  /* Device id for Lancer cards */
  54 #define OC_DEVICE_ID4           0xe228   /* Device id for VF in Lancer */
  55 #define OC_DEVICE_ID5           0x720   /* Device Id for Skyhawk cards */
  56 #define OC_DEVICE_ID6           0x728   /* Device id for VF in SkyHawk */
  57 #define OC_SUBSYS_DEVICE_ID1    0xE602
  58 #define OC_SUBSYS_DEVICE_ID2    0xE642
  59 #define OC_SUBSYS_DEVICE_ID3    0xE612
  60 #define OC_SUBSYS_DEVICE_ID4    0xE652
  61
  62 /* Number of bytes of an RX frame that are copied to skb->data */
  63 #define BE_HDR_LEN              ((u16) 64)
  64 /* allocate extra space to allow tunneling decapsulation without head reallocation */
  65 #define BE_RX_SKB_ALLOC_SIZE (BE_HDR_LEN + 64)
  66
  67 #define BE_MAX_JUMBO_FRAME_SIZE 9018
  68 #define BE_MIN_MTU              256
  69 #define BE_MAX_MTU              (BE_MAX_JUMBO_FRAME_SIZE -      \
  70                                  (ETH_HLEN + ETH_FCS_LEN))
  71
  72 #define BE_NUM_VLANS_SUPPORTED  64
  73 #define BE_MAX_EQD              128u
  74 #define BE_MAX_TX_FRAG_COUNT    30
  75
  76 #define EVNT_Q_LEN              1024
  77 #define TX_Q_LEN                2048
  78 #define TX_CQ_LEN               1024
  79 #define RX_Q_LEN                1024    /* Does not support any other value */
  80 #define RX_CQ_LEN               1024
  81 #define MCC_Q_LEN               128     /* total size not to exceed 8 pages */
  82 #define MCC_CQ_LEN              256
  83
  84 #define BE2_MAX_RSS_QS          4
  85 #define BE3_MAX_RSS_QS          16
  86 #define BE3_MAX_TX_QS           16
  87 #define BE3_MAX_EVT_QS          16
  88 #define BE3_SRIOV_MAX_EVT_QS    8
  89
  90 #define MAX_RX_QS               32
  91 #define MAX_EVT_QS              32
  92 #define MAX_TX_QS               32
  93
  94 #define MAX_ROCE_EQS            5
  95 #define MAX_MSIX_VECTORS        32
  96 #define MIN_MSIX_VECTORS        1
  97 #define BE_NAPI_WEIGHT          64
  98 #define MAX_RX_POST             BE_NAPI_WEIGHT /* Frags posted at a time */
  99 #define RX_FRAGS_REFILL_WM      (RX_Q_LEN - MAX_RX_POST)
 100
 101 #define MAX_VFS                 30 /* Max VFs supported by BE3 FW */
 102 #define FW_VER_LEN              32
 103
 104 #define RSS_INDIR_TABLE_LEN     128
 105 #define RSS_HASH_KEY_LEN        40
 106
 107 struct be_dma_mem {
 108         void *va;
 109         dma_addr_t dma;
 110         u32 size;
 111 };
 112
 113 struct be_queue_info {
 114         struct be_dma_mem dma_mem;
 115         u16 len;
 116         u16 entry_size; /* Size of an element in the queue */
 117         u16 id;
 118         u16 tail, head;
 119         bool created;
 120         atomic_t used;  /* Number of valid elements in the queue */
 121 };
 122
 123 static inline u32 MODULO(u16 val, u16 limit)
 124 {
 125         BUG_ON(limit & (limit - 1));
 126         return val & (limit - 1);
 127 }
 128
 129 static inline void index_adv(u16 *index, u16 val, u16 limit)
 130 {
 131         *index = MODULO((*index + val), limit);
 132 }
 133
 134 static inline void index_inc(u16 *index, u16 limit)
 135 {
 136         *index = MODULO((*index + 1), limit);
 137 }
 138
 139 static inline void *queue_head_node(struct be_queue_info *q)
 140 {
 141         return q->dma_mem.va + q->head * q->entry_size;
 142 }
 143
 144 static inline void *queue_tail_node(struct be_queue_info *q)
 145 {
 146         return q->dma_mem.va + q->tail * q->entry_size;
 147 }
 148
 149 static inline void *queue_index_node(struct be_queue_info *q, u16 index)
 150 {
 151         return q->dma_mem.va + index * q->entry_size;
 152 }
 153
 154 static inline void queue_head_inc(struct be_queue_info *q)
 155 {
 156         index_inc(&q->head, q->len);
 157 }
 158
 159 static inline void index_dec(u16 *index, u16 limit)
 160 {
 161         *index = MODULO((*index - 1), limit);
 162 }
 163
 164 static inline void queue_tail_inc(struct be_queue_info *q)
 165 {
 166         index_inc(&q->tail, q->len);
 167 }
 168
 169 struct be_eq_obj {
 170         struct be_queue_info q;
 171         char desc[32];
 172
 173         /* Adaptive interrupt coalescing (AIC) info */
 174         bool enable_aic;
 175         u32 min_eqd;            /* in usecs */
 176         u32 max_eqd;            /* in usecs */
 177         u32 eqd;                /* configured val when aic is off */
 178         u32 cur_eqd;            /* in usecs */
 179
 180         u8 idx;                 /* array index */
 181         u8 msix_idx;
 182         u16 spurious_intr;
 183         struct napi_struct napi;
 184         struct be_adapter *adapter;
 185
 186 #ifdef CONFIG_NET_RX_BUSY_POLL
 187 #define BE_EQ_IDLE              0
 188 #define BE_EQ_NAPI              1       /* napi owns this EQ */
 189 #define BE_EQ_POLL              2       /* poll owns this EQ */
 190 #define BE_EQ_LOCKED            (BE_EQ_NAPI | BE_EQ_POLL)
 191 #define BE_EQ_NAPI_YIELD        4       /* napi yielded this EQ */
 192 #define BE_EQ_POLL_YIELD        8       /* poll yielded this EQ */
 193 #define BE_EQ_YIELD             (BE_EQ_NAPI_YIELD | BE_EQ_POLL_YIELD)
 194 #define BE_EQ_USER_PEND         (BE_EQ_POLL | BE_EQ_POLL_YIELD)
 195         unsigned int state;
 196         spinlock_t lock;        /* lock to serialize napi and busy-poll */
 197 #endif  /* CONFIG_NET_RX_BUSY_POLL */
 198 } ____cacheline_aligned_in_smp;
 199
 200 struct be_aic_obj {             /* Adaptive interrupt coalescing (AIC) info */
 201         bool enable;
 202         u32 min_eqd;            /* in usecs */
 203         u32 max_eqd;            /* in usecs */
 204         u32 prev_eqd;           /* in usecs */
 205         u32 et_eqd;             /* configured val when aic is off */
 206         ulong jiffies;
 207         u64 rx_pkts_prev;       /* Used to calculate RX pps */
 208         u64 tx_reqs_prev;       /* Used to calculate TX pps */
 209 };
 210
 211 enum {
 212         NAPI_POLLING,
 213         BUSY_POLLING
 214 };
 215
 216 struct be_mcc_obj {
 217         struct be_queue_info q;
 218         struct be_queue_info cq;
 219         bool rearm_cq;
 220 };
 221
 222 struct be_tx_stats {
 223         u64 tx_bytes;
 224         u64 tx_pkts;
 225         u64 tx_reqs;
 226         u64 tx_compl;
 227         ulong tx_jiffies;
 228         u32 tx_stops;
 229         u32 tx_drv_drops;       /* pkts dropped by driver */
 230         /* the error counters are described in be_ethtool.c */
 231         u32 tx_hdr_parse_err;
 232         u32 tx_dma_err;
 233         u32 tx_tso_err;
 234         u32 tx_spoof_check_err;
 235         u32 tx_qinq_err;
 236         u32 tx_internal_parity_err;
 237         struct u64_stats_sync sync;
 238         struct u64_stats_sync sync_compl;
 239 };
 240
 241 struct be_tx_obj {
 242         u32 db_offset;
 243         struct be_queue_info q;
 244         struct be_queue_info cq;
 245         /* Remember the skbs that were transmitted */
 246         struct sk_buff *sent_skb_list[TX_Q_LEN];
 247         struct be_tx_stats stats;
 248         u16 pend_wrb_cnt;       /* Number of WRBs yet to be given to HW */
 249         u16 last_req_wrb_cnt;   /* wrb cnt of the last req in the Q */
 250         u16 last_req_hdr;       /* index of the last req's hdr-wrb */
 251 } ____cacheline_aligned_in_smp;
 252
 253 /* Struct to remember the pages posted for rx frags */
 254 struct be_rx_page_info {
 255         struct page *page;
 256         /* set to page-addr for last frag of the page & frag-addr otherwise */
 257         DEFINE_DMA_UNMAP_ADDR(bus);
 258         u16 page_offset;
 259         bool last_frag;         /* last frag of the page */
 260 };
 261
 262 struct be_rx_stats {
 263         u64 rx_bytes;
 264         u64 rx_pkts;
 265         u32 rx_drops_no_skbs;   /* skb allocation errors */
 266         u32 rx_drops_no_frags;  /* HW has no fetched frags */
 267         u32 rx_post_fail;       /* page post alloc failures */
 268         u32 rx_compl;
 269         u32 rx_mcast_pkts;
 270         u32 rx_compl_err;       /* completions with err set */
 271         struct u64_stats_sync sync;
 272 };
 273
 274 struct be_rx_compl_info {
 275         u32 rss_hash;
 276         u16 vlan_tag;
 277         u16 pkt_size;
 278         u16 port;
 279         u8 vlanf;
 280         u8 num_rcvd;
 281         u8 err;
 282         u8 ipf;
 283         u8 tcpf;
 284         u8 udpf;
 285         u8 ip_csum;
 286         u8 l4_csum;
 287         u8 ipv6;
 288         u8 qnq;
 289         u8 pkt_type;
 290         u8 ip_frag;
 291         u8 tunneled;
 292 };
 293
 294 struct be_rx_obj {
 295         struct be_adapter *adapter;
 296         struct be_queue_info q;
 297         struct be_queue_info cq;
 298         struct be_rx_compl_info rxcp;
 299         struct be_rx_page_info page_info_tbl[RX_Q_LEN];
 300         struct be_rx_stats stats;
 301         u8 rss_id;
 302         bool rx_post_starved;   /* Zero rx frags have been posted to BE */
 303 } ____cacheline_aligned_in_smp;
 304
 305 struct be_drv_stats {
 306         u32 be_on_die_temperature;
 307         u32 eth_red_drops;
 308         u32 dma_map_errors;
 309         u32 rx_drops_no_pbuf;
 310         u32 rx_drops_no_txpb;
 311         u32 rx_drops_no_erx_descr;
 312         u32 rx_drops_no_tpre_descr;
 313         u32 rx_drops_too_many_frags;
 314         u32 forwarded_packets;
 315         u32 rx_drops_mtu;
 316         u32 rx_crc_errors;
 317         u32 rx_alignment_symbol_errors;
 318         u32 rx_pause_frames;
 319         u32 rx_priority_pause_frames;
 320         u32 rx_control_frames;
 321         u32 rx_in_range_errors;
 322         u32 rx_out_range_errors;
 323         u32 rx_frame_too_long;
 324         u32 rx_address_filtered;
 325         u32 rx_dropped_too_small;
 326         u32 rx_dropped_too_short;
 327         u32 rx_dropped_header_too_small;
 328         u32 rx_dropped_tcp_length;
 329         u32 rx_dropped_runt;
 330         u32 rx_ip_checksum_errs;
 331         u32 rx_tcp_checksum_errs;
 332         u32 rx_udp_checksum_errs;
 333         u32 tx_pauseframes;
 334         u32 tx_priority_pauseframes;
 335         u32 tx_controlframes;
 336         u32 rxpp_fifo_overflow_drop;
 337         u32 rx_input_fifo_overflow_drop;
 338         u32 pmem_fifo_overflow_drop;
 339         u32 jabber_events;
 340         u32 rx_roce_bytes_lsd;
 341         u32 rx_roce_bytes_msd;
 342         u32 rx_roce_frames;
 343         u32 roce_drops_payload_len;
 344         u32 roce_drops_crc;
 345 };
 346
 347 /* A vlan-id of 0xFFFF must be used to clear transparent vlan-tagging */
 348 #define BE_RESET_VLAN_TAG_ID    0xFFFF
 349
 350 struct be_vf_cfg {
 351         unsigned char mac_addr[ETH_ALEN];
 352         int if_handle;
 353         int pmac_id;
 354         u16 vlan_tag;
 355         u32 tx_rate;
 356         u32 plink_tracking;
 357 };
 358
 359 enum vf_state {
 360         ENABLED = 0,
 361         ASSIGNED = 1
 362 };
 363
 364 #define BE_FLAGS_LINK_STATUS_INIT               BIT(1)
 365 #define BE_FLAGS_SRIOV_ENABLED                  BIT(2)
 366 #define BE_FLAGS_WORKER_SCHEDULED               BIT(3)
 367 #define BE_FLAGS_NAPI_ENABLED                   BIT(6)
 368 #define BE_FLAGS_QNQ_ASYNC_EVT_RCVD             BIT(7)
 369 #define BE_FLAGS_VXLAN_OFFLOADS                 BIT(8)
 370 #define BE_FLAGS_SETUP_DONE                     BIT(9)
 371 #define BE_FLAGS_EVT_INCOMPATIBLE_SFP           BIT(10)
 372
 373 #define BE_UC_PMAC_COUNT                        30
 374 #define BE_VF_UC_PMAC_COUNT                     2
 375
 376 /* Ethtool set_dump flags */
 377 #define LANCER_INITIATE_FW_DUMP                 0x1
 378 #define LANCER_DELETE_FW_DUMP                   0x2
 379
 380 struct phy_info {
 381 /* From SFF-8472 spec */
 382 #define SFP_VENDOR_NAME_LEN                     17
 383         u8 transceiver;
 384         u8 autoneg;
 385         u8 fc_autoneg;
 386         u8 port_type;
 387         u16 phy_type;
 388         u16 interface_type;
 389         u32 misc_params;
 390         u16 auto_speeds_supported;
 391         u16 fixed_speeds_supported;
 392         int link_speed;
 393         u32 advertising;
 394         u32 supported;
 395         u8 cable_type;
 396         u8 vendor_name[SFP_VENDOR_NAME_LEN];
 397         u8 vendor_pn[SFP_VENDOR_NAME_LEN];
 398 };
 399
 400 struct be_resources {
 401         u16 max_vfs;            /* Total VFs "really" supported by FW/HW */
 402         u16 max_mcast_mac;
 403         u16 max_tx_qs;
 404         u16 max_rss_qs;
 405         u16 max_rx_qs;
 406         u16 max_uc_mac;         /* Max UC MACs programmable */
 407         u16 max_vlans;          /* Number of vlans supported */
 408         u16 max_evt_qs;
 409         u32 if_cap_flags;
 410         u32 vf_if_cap_flags;    /* VF if capability flags */
 411 };
 412
 413 struct rss_info {
 414         u64 rss_flags;
 415         u8 rsstable[RSS_INDIR_TABLE_LEN];
 416         u8 rss_queue[RSS_INDIR_TABLE_LEN];
 417         u8 rss_hkey[RSS_HASH_KEY_LEN];
 418 };
 419
 420 struct be_adapter {
 421         struct pci_dev *pdev;
 422         struct net_device *netdev;
 423
 424         u8 __iomem *csr;        /* CSR BAR used only for BE2/3 */
 425         u8 __iomem *db;         /* Door Bell */
 426
 427         struct mutex mbox_lock; /* For serializing mbox cmds to BE card */
 428         struct be_dma_mem mbox_mem;
 429         /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
 430          * is stored for freeing purpose */
 431         struct be_dma_mem mbox_mem_alloced;
 432
 433         struct be_mcc_obj mcc_obj;
 434         spinlock_t mcc_lock;    /* For serializing mcc cmds to BE card */
 435         spinlock_t mcc_cq_lock;
 436
 437         u16 cfg_num_qs;         /* configured via set-channels */
 438         u16 num_evt_qs;
 439         u16 num_msix_vec;
 440         struct be_eq_obj eq_obj[MAX_EVT_QS];
 441         struct msix_entry msix_entries[MAX_MSIX_VECTORS];
 442         bool isr_registered;
 443
 444         /* TX Rings */
 445         u16 num_tx_qs;
 446         struct be_tx_obj tx_obj[MAX_TX_QS];
 447
 448         /* Rx rings */
 449         u16 num_rx_qs;
 450         struct be_rx_obj rx_obj[MAX_RX_QS];
 451         u32 big_page_size;      /* Compounded page size shared by rx wrbs */
 452
 453         struct be_drv_stats drv_stats;
 454         struct be_aic_obj aic_obj[MAX_EVT_QS];
 455         u8 vlan_prio_bmap;      /* Available Priority BitMap */
 456         u16 recommended_prio;   /* Recommended Priority */
 457         struct be_dma_mem rx_filter; /* Cmd DMA mem for rx-filter */
 458
 459         struct be_dma_mem stats_cmd;
 460         /* Work queue used to perform periodic tasks like getting statistics */
 461         struct delayed_work work;
 462         u16 work_counter;
 463
 464         struct delayed_work func_recovery_work;
 465         u32 flags;
 466         u32 cmd_privileges;
 467         /* Ethtool knobs and info */
 468         char fw_ver[FW_VER_LEN];
 469         char fw_on_flash[FW_VER_LEN];
 470
 471         /* IFACE filtering fields */
 472         int if_handle;          /* Used to configure filtering */
 473         u32 if_flags;           /* Interface filtering flags */
 474         u32 *pmac_id;           /* MAC addr handle used by BE card */
 475         u32 uc_macs;            /* Count of secondary UC MAC programmed */
 476         unsigned long vids[BITS_TO_LONGS(VLAN_N_VID)];
 477         u16 vlans_added;
 478
 479         u32 beacon_state;       /* for set_phys_id */
 480
 481         bool eeh_error;
 482         bool fw_timeout;
 483         bool hw_error;
 484
 485         u32 port_num;
 486         char port_name;
 487         u8 mc_type;
 488         u32 function_mode;
 489         u32 function_caps;
 490         u32 rx_fc;              /* Rx flow control */
 491         u32 tx_fc;              /* Tx flow control */
 492         bool stats_cmd_sent;
 493         struct {
 494                 u32 size;
 495                 u32 total_size;
 496                 u64 io_addr;
 497         } roce_db;
 498         u32 num_msix_roce_vec;
 499         struct ocrdma_dev *ocrdma_dev;
 500         struct list_head entry;
 501
 502         u32 flash_status;
 503         struct completion et_cmd_compl;
 504
 505         struct be_resources pool_res;   /* resources available for the port */
 506         struct be_resources res;        /* resources available for the func */
 507         u16 num_vfs;                    /* Number of VFs provisioned by PF */
 508         u8 virtfn;
 509         struct be_vf_cfg *vf_cfg;
 510         bool be3_native;
 511         u32 sli_family;
 512         u8 hba_port_num;
 513         u16 pvid;
 514         __be16 vxlan_port;
 515         int vxlan_port_count;
 516         struct phy_info phy;
 517         u8 wol_cap;
 518         bool wol_en;
 519         u16 asic_rev;
 520         u16 qnq_vid;
 521         u32 msg_enable;
 522         int be_get_temp_freq;
 523         u8 pf_number;
 524         struct rss_info rss_info;
 525 };
 526
 527 #define be_physfn(adapter)              (!adapter->virtfn)
 528 #define be_virtfn(adapter)              (adapter->virtfn)
 529 #define sriov_enabled(adapter)          (adapter->flags &       \
 530                                          BE_FLAGS_SRIOV_ENABLED)
 531
 532 #define for_all_vfs(adapter, vf_cfg, i)                                 \
 533         for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs; \
 534                 i++, vf_cfg++)
 535
 536 #define ON                              1
 537 #define OFF                             0
 538
 539 #define be_max_vlans(adapter)           (adapter->res.max_vlans)
 540 #define be_max_uc(adapter)              (adapter->res.max_uc_mac)
 541 #define be_max_mc(adapter)              (adapter->res.max_mcast_mac)
 542 #define be_max_vfs(adapter)             (adapter->pool_res.max_vfs)
 543 #define be_max_rss(adapter)             (adapter->res.max_rss_qs)
 544 #define be_max_txqs(adapter)            (adapter->res.max_tx_qs)
 545 #define be_max_prio_txqs(adapter)       (adapter->res.max_prio_tx_qs)
 546 #define be_max_rxqs(adapter)            (adapter->res.max_rx_qs)
 547 #define be_max_eqs(adapter)             (adapter->res.max_evt_qs)
 548 #define be_if_cap_flags(adapter)        (adapter->res.if_cap_flags)
 549
 550 static inline u16 be_max_qs(struct be_adapter *adapter)
 551 {
 552         /* If no RSS, need atleast the one def RXQ */
 553         u16 num = max_t(u16, be_max_rss(adapter), 1);
 554
 555         num = min(num, be_max_eqs(adapter));
 556         return min_t(u16, num, num_online_cpus());
 557 }
 558
 559 /* Is BE in pvid_tagging mode */
 560 #define be_pvid_tagging_enabled(adapter)        (adapter->pvid)
 561
 562 /* Is BE in QNQ multi-channel mode */
 563 #define be_is_qnq_mode(adapter)         (adapter->function_mode & QNQ_MODE)
 564
 565 #define lancer_chip(adapter)    (adapter->pdev->device == OC_DEVICE_ID3 || \
 566                                  adapter->pdev->device == OC_DEVICE_ID4)
 567
 568 #define skyhawk_chip(adapter)   (adapter->pdev->device == OC_DEVICE_ID5 || \
 569                                  adapter->pdev->device == OC_DEVICE_ID6)
 570
 571 #define BE3_chip(adapter)       (adapter->pdev->device == BE_DEVICE_ID2 || \
 572                                  adapter->pdev->device == OC_DEVICE_ID2)
 573
 574 #define BE2_chip(adapter)       (adapter->pdev->device == BE_DEVICE_ID1 || \
 575                                  adapter->pdev->device == OC_DEVICE_ID1)
 576
 577 #define BEx_chip(adapter)       (BE3_chip(adapter) || BE2_chip(adapter))
 578
 579 #define be_roce_supported(adapter)      (skyhawk_chip(adapter) && \
 580                                         (adapter->function_mode & RDMA_ENABLED))
 581
 582 extern const struct ethtool_ops be_ethtool_ops;
 583
 584 #define msix_enabled(adapter)           (adapter->num_msix_vec > 0)
 585 #define num_irqs(adapter)               (msix_enabled(adapter) ?        \
 586                                                 adapter->num_msix_vec : 1)
 587 #define tx_stats(txo)                   (&(txo)->stats)
 588 #define rx_stats(rxo)                   (&(rxo)->stats)
 589
 590 /* The default RXQ is the last RXQ */
 591 #define default_rxo(adpt)               (&adpt->rx_obj[adpt->num_rx_qs - 1])
 592
 593 #define for_all_rx_queues(adapter, rxo, i)                              \
 594         for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;  \
 595                 i++, rxo++)
 596
 597 /* Skip the default non-rss queue (last one)*/
 598 #define for_all_rss_queues(adapter, rxo, i)                             \
 599         for (i = 0, rxo = &adapter->rx_obj[i]; i < (adapter->num_rx_qs - 1);\
 600                 i++, rxo++)
 601
 602 #define for_all_tx_queues(adapter, txo, i)                              \
 603         for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs;  \
 604                 i++, txo++)
 605
 606 #define for_all_evt_queues(adapter, eqo, i)                             \
 607         for (i = 0, eqo = &adapter->eq_obj[i]; i < adapter->num_evt_qs; \
 608                 i++, eqo++)
 609
 610 #define for_all_rx_queues_on_eq(adapter, eqo, rxo, i)                   \
 611         for (i = eqo->idx, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;\
 612                  i += adapter->num_evt_qs, rxo += adapter->num_evt_qs)
 613
 614 #define for_all_tx_queues_on_eq(adapter, eqo, txo, i)                   \
 615         for (i = eqo->idx, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs;\
 616                 i += adapter->num_evt_qs, txo += adapter->num_evt_qs)
 617
 618 #define is_mcc_eqo(eqo)                 (eqo->idx == 0)
 619 #define mcc_eqo(adapter)                (&adapter->eq_obj[0])
 620
 621 #define PAGE_SHIFT_4K           12
 622 #define PAGE_SIZE_4K            (1 << PAGE_SHIFT_4K)
 623
 624 /* Returns number of pages spanned by the data starting at the given addr */
 625 #define PAGES_4K_SPANNED(_address, size)                                \
 626                 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) +     \
 627                         (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
 628
 629 /* Returns bit offset within a DWORD of a bitfield */
 630 #define AMAP_BIT_OFFSET(_struct, field)                                 \
 631                 (((size_t)&(((_struct *)0)->field))%32)
 632
 633 /* Returns the bit mask of the field that is NOT shifted into location. */
 634 static inline u32 amap_mask(u32 bitsize)
 635 {
 636         return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
 637 }
 638
 639 static inline void
 640 amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
 641 {
 642         u32 *dw = (u32 *) ptr + dw_offset;
 643         *dw &= ~(mask << offset);
 644         *dw |= (mask & value) << offset;
 645 }
 646
 647 #define AMAP_SET_BITS(_struct, field, ptr, val)                         \
 648                 amap_set(ptr,                                           \
 649                         offsetof(_struct, field)/32,                    \
 650                         amap_mask(sizeof(((_struct *)0)->field)),       \
 651                         AMAP_BIT_OFFSET(_struct, field),                \
 652                         val)
 653
 654 static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
 655 {
 656         u32 *dw = (u32 *) ptr;
 657         return mask & (*(dw + dw_offset) >> offset);
 658 }
 659
 660 #define AMAP_GET_BITS(_struct, field, ptr)                              \
 661                 amap_get(ptr,                                           \
 662                         offsetof(_struct, field)/32,                    \
 663                         amap_mask(sizeof(((_struct *)0)->field)),       \
 664                         AMAP_BIT_OFFSET(_struct, field))
 665
 666 #define GET_RX_COMPL_V0_BITS(field, ptr)                                \
 667                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, field, ptr)
 668
 669 #define GET_RX_COMPL_V1_BITS(field, ptr)                                \
 670                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, field, ptr)
 671
 672 #define GET_TX_COMPL_BITS(field, ptr)                                   \
 673                 AMAP_GET_BITS(struct amap_eth_tx_compl, field, ptr)
 674
 675 #define SET_TX_WRB_HDR_BITS(field, ptr, val)                            \
 676                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, field, ptr, val)
 677
 678 #define be_dws_cpu_to_le(wrb, len)      swap_dws(wrb, len)
 679 #define be_dws_le_to_cpu(wrb, len)      swap_dws(wrb, len)
 680 static inline void swap_dws(void *wrb, int len)
 681 {
 682 #ifdef __BIG_ENDIAN
 683         u32 *dw = wrb;
 684         BUG_ON(len % 4);
 685         do {
 686                 *dw = cpu_to_le32(*dw);
 687                 dw++;
 688                 len -= 4;
 689         } while (len);
 690 #endif                          /* __BIG_ENDIAN */
 691 }
 692
 693 #define be_cmd_status(status)           (status > 0 ? -EIO : status)
 694
 695 static inline u8 is_tcp_pkt(struct sk_buff *skb)
 696 {
 697         u8 val = 0;
 698
 699         if (ip_hdr(skb)->version == 4)
 700                 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
 701         else if (ip_hdr(skb)->version == 6)
 702                 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
 703
 704         return val;
 705 }
 706
 707 static inline u8 is_udp_pkt(struct sk_buff *skb)
 708 {
 709         u8 val = 0;
 710
 711         if (ip_hdr(skb)->version == 4)
 712                 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
 713         else if (ip_hdr(skb)->version == 6)
 714                 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
 715
 716         return val;
 717 }
 718
 719 static inline bool is_ipv4_pkt(struct sk_buff *skb)
 720 {
 721         return skb->protocol == htons(ETH_P_IP) && ip_hdr(skb)->version == 4;
 722 }
 723
 724 static inline bool be_multi_rxq(const struct be_adapter *adapter)
 725 {
 726         return adapter->num_rx_qs > 1;
 727 }
 728
 729 static inline bool be_error(struct be_adapter *adapter)
 730 {
 731         return adapter->eeh_error || adapter->hw_error || adapter->fw_timeout;
 732 }
 733
 734 static inline bool be_hw_error(struct be_adapter *adapter)
 735 {
 736         return adapter->eeh_error || adapter->hw_error;
 737 }
 738
 739 static inline void  be_clear_all_error(struct be_adapter *adapter)
 740 {
 741         adapter->eeh_error = false;
 742         adapter->hw_error = false;
 743         adapter->fw_timeout = false;
 744 }
 745
 746 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
 747                   u16 num_popped);
 748 void be_link_status_update(struct be_adapter *adapter, u8 link_status);
 749 void be_parse_stats(struct be_adapter *adapter);
 750 int be_load_fw(struct be_adapter *adapter, u8 *func);
 751 bool be_is_wol_supported(struct be_adapter *adapter);
 752 bool be_pause_supported(struct be_adapter *adapter);
 753 u32 be_get_fw_log_level(struct be_adapter *adapter);
 754 int be_update_queues(struct be_adapter *adapter);
 755 int be_poll(struct napi_struct *napi, int budget);
 756
 757 /*
 758  * internal function to initialize-cleanup roce device.
 759  */
 760 void be_roce_dev_add(struct be_adapter *);
 761 void be_roce_dev_remove(struct be_adapter *);
 762
 763 /*
 764  * internal function to open-close roce device during ifup-ifdown.
 765  */
 766 void be_roce_dev_open(struct be_adapter *);
 767 void be_roce_dev_close(struct be_adapter *);
 768 void be_roce_dev_shutdown(struct be_adapter *);
 769
 770 #endif                          /* BE_H */