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

   1 /*
   2  * Copyright (C) 2005 - 2016 Broadcom
   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 #include <linux/cpumask.h>
  34 #include <linux/hwmon.h>
  35 #include <linux/hwmon-sysfs.h>
  36
  37 #include "be_hw.h"
  38 #include "be_roce.h"
  39
  40 #define DRV_VER                 "11.4.0.0"
  41 #define DRV_NAME                "be2net"
  42 #define BE_NAME                 "Emulex BladeEngine2"
  43 #define BE3_NAME                "Emulex BladeEngine3"
  44 #define OC_NAME                 "Emulex OneConnect"
  45 #define OC_NAME_BE              OC_NAME "(be3)"
  46 #define OC_NAME_LANCER          OC_NAME "(Lancer)"
  47 #define OC_NAME_SH              OC_NAME "(Skyhawk)"
  48 #define DRV_DESC                "Emulex OneConnect NIC Driver"
  49
  50 #define BE_VENDOR_ID            0x19a2
  51 #define EMULEX_VENDOR_ID        0x10df
  52 #define BE_DEVICE_ID1           0x211
  53 #define BE_DEVICE_ID2           0x221
  54 #define OC_DEVICE_ID1           0x700   /* Device Id for BE2 cards */
  55 #define OC_DEVICE_ID2           0x710   /* Device Id for BE3 cards */
  56 #define OC_DEVICE_ID3           0xe220  /* Device id for Lancer cards */
  57 #define OC_DEVICE_ID4           0xe228   /* Device id for VF in Lancer */
  58 #define OC_DEVICE_ID5           0x720   /* Device Id for Skyhawk cards */
  59 #define OC_DEVICE_ID6           0x728   /* Device id for VF in SkyHawk */
  60 #define OC_SUBSYS_DEVICE_ID1    0xE602
  61 #define OC_SUBSYS_DEVICE_ID2    0xE642
  62 #define OC_SUBSYS_DEVICE_ID3    0xE612
  63 #define OC_SUBSYS_DEVICE_ID4    0xE652
  64
  65 /* Number of bytes of an RX frame that are copied to skb->data */
  66 #define BE_HDR_LEN              ((u16) 64)
  67 /* allocate extra space to allow tunneling decapsulation without head reallocation */
  68 #define BE_RX_SKB_ALLOC_SIZE    256
  69
  70 #define BE_MAX_JUMBO_FRAME_SIZE 9018
  71 #define BE_MIN_MTU              256
  72 #define BE_MAX_MTU              (BE_MAX_JUMBO_FRAME_SIZE -      \
  73                                  (ETH_HLEN + ETH_FCS_LEN))
  74
  75 /* Accommodate for QnQ configurations where VLAN insertion is enabled in HW */
  76 #define BE_MAX_GSO_SIZE         (65535 - 2 * VLAN_HLEN)
  77
  78 #define BE_NUM_VLANS_SUPPORTED  64
  79 #define BE_MAX_EQD              128u
  80 #define BE_MAX_TX_FRAG_COUNT    30
  81
  82 #define EVNT_Q_LEN              1024
  83 #define TX_Q_LEN                2048
  84 #define TX_CQ_LEN               1024
  85 #define RX_Q_LEN                1024    /* Does not support any other value */
  86 #define RX_CQ_LEN               1024
  87 #define MCC_Q_LEN               128     /* total size not to exceed 8 pages */
  88 #define MCC_CQ_LEN              256
  89
  90 #define BE2_MAX_RSS_QS          4
  91 #define BE3_MAX_RSS_QS          16
  92 #define BE3_MAX_TX_QS           16
  93 #define BE3_MAX_EVT_QS          16
  94 #define BE3_SRIOV_MAX_EVT_QS    8
  95 #define SH_VF_MAX_NIC_EQS       3       /* Skyhawk VFs can have a max of 4 EQs
  96                                          * and at least 1 is granted to either
  97                                          * SURF/DPDK
  98                                          */
  99
 100 #define MAX_PORT_RSS_TABLES     15
 101 #define MAX_NIC_FUNCS           16
 102 #define MAX_RX_QS               32
 103 #define MAX_EVT_QS              32
 104 #define MAX_TX_QS               32
 105
 106 #define MAX_ROCE_EQS            5
 107 #define MAX_MSIX_VECTORS        32
 108 #define MIN_MSIX_VECTORS        1
 109 #define BE_NAPI_WEIGHT          64
 110 #define MAX_RX_POST             BE_NAPI_WEIGHT /* Frags posted at a time */
 111 #define RX_FRAGS_REFILL_WM      (RX_Q_LEN - MAX_RX_POST)
 112 #define MAX_NUM_POST_ERX_DB     255u
 113
 114 #define MAX_VFS                 30 /* Max VFs supported by BE3 FW */
 115 #define FW_VER_LEN              32
 116 #define CNTL_SERIAL_NUM_WORDS   8  /* Controller serial number words */
 117 #define CNTL_SERIAL_NUM_WORD_SZ (sizeof(u16)) /* Byte-sz of serial num word */
 118
 119 #define RSS_INDIR_TABLE_LEN     128
 120 #define RSS_HASH_KEY_LEN        40
 121
 122 #define BE_UNKNOWN_PHY_STATE    0xFF
 123
 124 struct be_dma_mem {
 125         void *va;
 126         dma_addr_t dma;
 127         u32 size;
 128 };
 129
 130 struct be_queue_info {
 131         u32 len;
 132         u32 entry_size; /* Size of an element in the queue */
 133         u32 tail, head;
 134         atomic_t used;  /* Number of valid elements in the queue */
 135         u32 id;
 136         struct be_dma_mem dma_mem;
 137         bool created;
 138 };
 139
 140 static inline u32 MODULO(u32 val, u32 limit)
 141 {
 142         BUG_ON(limit & (limit - 1));
 143         return val & (limit - 1);
 144 }
 145
 146 static inline void index_adv(u32 *index, u32 val, u32 limit)
 147 {
 148         *index = MODULO((*index + val), limit);
 149 }
 150
 151 static inline void index_inc(u32 *index, u32 limit)
 152 {
 153         *index = MODULO((*index + 1), limit);
 154 }
 155
 156 static inline void *queue_head_node(struct be_queue_info *q)
 157 {
 158         return q->dma_mem.va + q->head * q->entry_size;
 159 }
 160
 161 static inline void *queue_tail_node(struct be_queue_info *q)
 162 {
 163         return q->dma_mem.va + q->tail * q->entry_size;
 164 }
 165
 166 static inline void *queue_index_node(struct be_queue_info *q, u16 index)
 167 {
 168         return q->dma_mem.va + index * q->entry_size;
 169 }
 170
 171 static inline void queue_head_inc(struct be_queue_info *q)
 172 {
 173         index_inc(&q->head, q->len);
 174 }
 175
 176 static inline void index_dec(u32 *index, u32 limit)
 177 {
 178         *index = MODULO((*index - 1), limit);
 179 }
 180
 181 static inline void queue_tail_inc(struct be_queue_info *q)
 182 {
 183         index_inc(&q->tail, q->len);
 184 }
 185
 186 struct be_eq_obj {
 187         struct be_queue_info q;
 188         char desc[32];
 189
 190         /* Adaptive interrupt coalescing (AIC) info */
 191         bool enable_aic;
 192         u32 min_eqd;            /* in usecs */
 193         u32 max_eqd;            /* in usecs */
 194         u32 eqd;                /* configured val when aic is off */
 195         u32 cur_eqd;            /* in usecs */
 196
 197         u8 idx;                 /* array index */
 198         u8 msix_idx;
 199         u16 spurious_intr;
 200         struct napi_struct napi;
 201         struct be_adapter *adapter;
 202         cpumask_var_t  affinity_mask;
 203
 204 #ifdef CONFIG_NET_RX_BUSY_POLL
 205 #define BE_EQ_IDLE              0
 206 #define BE_EQ_NAPI              1       /* napi owns this EQ */
 207 #define BE_EQ_POLL              2       /* poll owns this EQ */
 208 #define BE_EQ_LOCKED            (BE_EQ_NAPI | BE_EQ_POLL)
 209 #define BE_EQ_NAPI_YIELD        4       /* napi yielded this EQ */
 210 #define BE_EQ_POLL_YIELD        8       /* poll yielded this EQ */
 211 #define BE_EQ_YIELD             (BE_EQ_NAPI_YIELD | BE_EQ_POLL_YIELD)
 212 #define BE_EQ_USER_PEND         (BE_EQ_POLL | BE_EQ_POLL_YIELD)
 213         unsigned int state;
 214         spinlock_t lock;        /* lock to serialize napi and busy-poll */
 215 #endif  /* CONFIG_NET_RX_BUSY_POLL */
 216 } ____cacheline_aligned_in_smp;
 217
 218 struct be_aic_obj {             /* Adaptive interrupt coalescing (AIC) info */
 219         bool enable;
 220         u32 min_eqd;            /* in usecs */
 221         u32 max_eqd;            /* in usecs */
 222         u32 prev_eqd;           /* in usecs */
 223         u32 et_eqd;             /* configured val when aic is off */
 224         ulong jiffies;
 225         u64 rx_pkts_prev;       /* Used to calculate RX pps */
 226         u64 tx_reqs_prev;       /* Used to calculate TX pps */
 227 };
 228
 229 struct be_mcc_obj {
 230         struct be_queue_info q;
 231         struct be_queue_info cq;
 232         bool rearm_cq;
 233 };
 234
 235 struct be_tx_stats {
 236         u64 tx_bytes;
 237         u64 tx_pkts;
 238         u64 tx_vxlan_offload_pkts;
 239         u64 tx_reqs;
 240         u64 tx_compl;
 241         ulong tx_jiffies;
 242         u32 tx_stops;
 243         u32 tx_drv_drops;       /* pkts dropped by driver */
 244         /* the error counters are described in be_ethtool.c */
 245         u32 tx_hdr_parse_err;
 246         u32 tx_dma_err;
 247         u32 tx_tso_err;
 248         u32 tx_spoof_check_err;
 249         u32 tx_qinq_err;
 250         u32 tx_internal_parity_err;
 251         u32 tx_sge_err;
 252         struct u64_stats_sync sync;
 253         struct u64_stats_sync sync_compl;
 254 };
 255
 256 /* Structure to hold some data of interest obtained from a TX CQE */
 257 struct be_tx_compl_info {
 258         u8 status;              /* Completion status */
 259         u16 end_index;          /* Completed TXQ Index */
 260 };
 261
 262 struct be_tx_obj {
 263         u32 db_offset;
 264         struct be_queue_info q;
 265         struct be_queue_info cq;
 266         struct be_tx_compl_info txcp;
 267         /* Remember the skbs that were transmitted */
 268         struct sk_buff *sent_skb_list[TX_Q_LEN];
 269         struct be_tx_stats stats;
 270         u16 pend_wrb_cnt;       /* Number of WRBs yet to be given to HW */
 271         u16 last_req_wrb_cnt;   /* wrb cnt of the last req in the Q */
 272         u16 last_req_hdr;       /* index of the last req's hdr-wrb */
 273 } ____cacheline_aligned_in_smp;
 274
 275 /* Struct to remember the pages posted for rx frags */
 276 struct be_rx_page_info {
 277         struct page *page;
 278         /* set to page-addr for last frag of the page & frag-addr otherwise */
 279         DEFINE_DMA_UNMAP_ADDR(bus);
 280         u16 page_offset;
 281         bool last_frag;         /* last frag of the page */
 282 };
 283
 284 struct be_rx_stats {
 285         u64 rx_bytes;
 286         u64 rx_pkts;
 287         u64 rx_vxlan_offload_pkts;
 288         u32 rx_drops_no_skbs;   /* skb allocation errors */
 289         u32 rx_drops_no_frags;  /* HW has no fetched frags */
 290         u32 rx_post_fail;       /* page post alloc failures */
 291         u32 rx_compl;
 292         u32 rx_mcast_pkts;
 293         u32 rx_compl_err;       /* completions with err set */
 294         struct u64_stats_sync sync;
 295 };
 296
 297 struct be_rx_compl_info {
 298         u32 rss_hash;
 299         u16 vlan_tag;
 300         u16 pkt_size;
 301         u16 port;
 302         u8 vlanf;
 303         u8 num_rcvd;
 304         u8 err;
 305         u8 ipf;
 306         u8 tcpf;
 307         u8 udpf;
 308         u8 ip_csum;
 309         u8 l4_csum;
 310         u8 ipv6;
 311         u8 qnq;
 312         u8 pkt_type;
 313         u8 ip_frag;
 314         u8 tunneled;
 315 };
 316
 317 struct be_rx_obj {
 318         struct be_adapter *adapter;
 319         struct be_queue_info q;
 320         struct be_queue_info cq;
 321         struct be_rx_compl_info rxcp;
 322         struct be_rx_page_info page_info_tbl[RX_Q_LEN];
 323         struct be_rx_stats stats;
 324         u8 rss_id;
 325         bool rx_post_starved;   /* Zero rx frags have been posted to BE */
 326 } ____cacheline_aligned_in_smp;
 327
 328 struct be_drv_stats {
 329         u32 eth_red_drops;
 330         u32 dma_map_errors;
 331         u32 rx_drops_no_pbuf;
 332         u32 rx_drops_no_txpb;
 333         u32 rx_drops_no_erx_descr;
 334         u32 rx_drops_no_tpre_descr;
 335         u32 rx_drops_too_many_frags;
 336         u32 forwarded_packets;
 337         u32 rx_drops_mtu;
 338         u32 rx_crc_errors;
 339         u32 rx_alignment_symbol_errors;
 340         u32 rx_pause_frames;
 341         u32 rx_priority_pause_frames;
 342         u32 rx_control_frames;
 343         u32 rx_in_range_errors;
 344         u32 rx_out_range_errors;
 345         u32 rx_frame_too_long;
 346         u32 rx_address_filtered;
 347         u32 rx_dropped_too_small;
 348         u32 rx_dropped_too_short;
 349         u32 rx_dropped_header_too_small;
 350         u32 rx_dropped_tcp_length;
 351         u32 rx_dropped_runt;
 352         u32 rx_ip_checksum_errs;
 353         u32 rx_tcp_checksum_errs;
 354         u32 rx_udp_checksum_errs;
 355         u32 tx_pauseframes;
 356         u32 tx_priority_pauseframes;
 357         u32 tx_controlframes;
 358         u32 rxpp_fifo_overflow_drop;
 359         u32 rx_input_fifo_overflow_drop;
 360         u32 pmem_fifo_overflow_drop;
 361         u32 jabber_events;
 362         u32 rx_roce_bytes_lsd;
 363         u32 rx_roce_bytes_msd;
 364         u32 rx_roce_frames;
 365         u32 roce_drops_payload_len;
 366         u32 roce_drops_crc;
 367 };
 368
 369 /* A vlan-id of 0xFFFF must be used to clear transparent vlan-tagging */
 370 #define BE_RESET_VLAN_TAG_ID    0xFFFF
 371
 372 struct be_vf_cfg {
 373         unsigned char mac_addr[ETH_ALEN];
 374         int if_handle;
 375         int pmac_id;
 376         u16 vlan_tag;
 377         u32 tx_rate;
 378         u32 plink_tracking;
 379         u32 privileges;
 380         bool spoofchk;
 381 };
 382
 383 enum vf_state {
 384         ENABLED = 0,
 385         ASSIGNED = 1
 386 };
 387
 388 #define BE_FLAGS_LINK_STATUS_INIT               BIT(1)
 389 #define BE_FLAGS_SRIOV_ENABLED                  BIT(2)
 390 #define BE_FLAGS_WORKER_SCHEDULED               BIT(3)
 391 #define BE_FLAGS_NAPI_ENABLED                   BIT(6)
 392 #define BE_FLAGS_QNQ_ASYNC_EVT_RCVD             BIT(7)
 393 #define BE_FLAGS_VXLAN_OFFLOADS                 BIT(8)
 394 #define BE_FLAGS_SETUP_DONE                     BIT(9)
 395 #define BE_FLAGS_PHY_MISCONFIGURED              BIT(10)
 396 #define BE_FLAGS_ERR_DETECTION_SCHEDULED        BIT(11)
 397 #define BE_FLAGS_OS2BMC                         BIT(12)
 398 #define BE_FLAGS_TRY_RECOVERY                   BIT(13)
 399
 400 #define BE_UC_PMAC_COUNT                        30
 401 #define BE_VF_UC_PMAC_COUNT                     2
 402
 403 #define MAX_ERR_RECOVERY_RETRY_COUNT            3
 404 #define ERR_DETECTION_DELAY                     1000
 405
 406 /* Ethtool set_dump flags */
 407 #define LANCER_INITIATE_FW_DUMP                 0x1
 408 #define LANCER_DELETE_FW_DUMP                   0x2
 409
 410 struct phy_info {
 411 /* From SFF-8472 spec */
 412 #define SFP_VENDOR_NAME_LEN                     17
 413         u8 transceiver;
 414         u8 autoneg;
 415         u8 fc_autoneg;
 416         u8 port_type;
 417         u16 phy_type;
 418         u16 interface_type;
 419         u32 misc_params;
 420         u16 auto_speeds_supported;
 421         u16 fixed_speeds_supported;
 422         int link_speed;
 423         u32 advertising;
 424         u32 supported;
 425         u8 cable_type;
 426         u8 vendor_name[SFP_VENDOR_NAME_LEN];
 427         u8 vendor_pn[SFP_VENDOR_NAME_LEN];
 428 };
 429
 430 struct be_resources {
 431         u16 max_vfs;            /* Total VFs "really" supported by FW/HW */
 432         u16 max_mcast_mac;
 433         u16 max_tx_qs;
 434         u16 max_rss_qs;
 435         u16 max_rx_qs;
 436         u16 max_cq_count;
 437         u16 max_uc_mac;         /* Max UC MACs programmable */
 438         u16 max_vlans;          /* Number of vlans supported */
 439         u16 max_iface_count;
 440         u16 max_mcc_count;
 441         u16 max_evt_qs;
 442         u16 max_nic_evt_qs;     /* NIC's share of evt qs */
 443         u32 if_cap_flags;
 444         u32 vf_if_cap_flags;    /* VF if capability flags */
 445         u32 flags;
 446         /* Calculated PF Pool's share of RSS Tables. This is not enforced by
 447          * the FW, but is a self-imposed driver limitation.
 448          */
 449         u16 max_rss_tables;
 450 };
 451
 452 /* These are port-wide values */
 453 struct be_port_resources {
 454         u16 max_vfs;
 455         u16 nic_pfs;
 456 };
 457
 458 #define be_is_os2bmc_enabled(adapter) (adapter->flags & BE_FLAGS_OS2BMC)
 459
 460 struct rss_info {
 461         u64 rss_flags;
 462         u8 rsstable[RSS_INDIR_TABLE_LEN];
 463         u8 rss_queue[RSS_INDIR_TABLE_LEN];
 464         u8 rss_hkey[RSS_HASH_KEY_LEN];
 465 };
 466
 467 #define BE_INVALID_DIE_TEMP     0xFF
 468 struct be_hwmon {
 469         struct device *hwmon_dev;
 470         u8 be_on_die_temp;  /* Unit: millidegree Celsius */
 471 };
 472
 473 /* Macros to read/write the 'features' word of be_wrb_params structure.
 474  */
 475 #define BE_WRB_F_BIT(name)                      BE_WRB_F_##name##_BIT
 476 #define BE_WRB_F_MASK(name)                     BIT_MASK(BE_WRB_F_##name##_BIT)
 477
 478 #define BE_WRB_F_GET(word, name)        \
 479         (((word) & (BE_WRB_F_MASK(name))) >> BE_WRB_F_BIT(name))
 480
 481 #define BE_WRB_F_SET(word, name, val)   \
 482         ((word) |= (((val) << BE_WRB_F_BIT(name)) & BE_WRB_F_MASK(name)))
 483
 484 /* Feature/offload bits */
 485 enum {
 486         BE_WRB_F_CRC_BIT,               /* Ethernet CRC */
 487         BE_WRB_F_IPCS_BIT,              /* IP csum */
 488         BE_WRB_F_TCPCS_BIT,             /* TCP csum */
 489         BE_WRB_F_UDPCS_BIT,             /* UDP csum */
 490         BE_WRB_F_LSO_BIT,               /* LSO */
 491         BE_WRB_F_LSO6_BIT,              /* LSO6 */
 492         BE_WRB_F_VLAN_BIT,              /* VLAN */
 493         BE_WRB_F_VLAN_SKIP_HW_BIT,      /* Skip VLAN tag (workaround) */
 494         BE_WRB_F_OS2BMC_BIT             /* Send packet to the management ring */
 495 };
 496
 497 /* The structure below provides a HW-agnostic abstraction of WRB params
 498  * retrieved from a TX skb. This is in turn passed to chip specific routines
 499  * during transmit, to set the corresponding params in the WRB.
 500  */
 501 struct be_wrb_params {
 502         u32 features;   /* Feature bits */
 503         u16 vlan_tag;   /* VLAN tag */
 504         u16 lso_mss;    /* MSS for LSO */
 505 };
 506
 507 struct be_eth_addr {
 508         unsigned char mac[ETH_ALEN];
 509 };
 510
 511 #define BE_SEC  1000                    /* in msec */
 512 #define BE_MIN  (60 * BE_SEC)           /* in msec */
 513 #define BE_HOUR (60 * BE_MIN)           /* in msec */
 514
 515 #define ERR_RECOVERY_MAX_RETRY_COUNT            3
 516 #define ERR_RECOVERY_DETECTION_DELAY            BE_SEC
 517 #define ERR_RECOVERY_RETRY_DELAY                (30 * BE_SEC)
 518
 519 /* UE-detection-duration in BEx/Skyhawk:
 520  * All PFs must wait for this duration after they detect UE before reading
 521  * SLIPORT_SEMAPHORE register. At the end of this duration, the Firmware
 522  * guarantees that the SLIPORT_SEMAPHORE register is updated to indicate
 523  * if the UE is recoverable.
 524  */
 525 #define ERR_RECOVERY_UE_DETECT_DURATION                 BE_SEC
 526
 527 /* Initial idle time (in msec) to elapse after driver load,
 528  * before UE recovery is allowed.
 529  */
 530 #define ERR_IDLE_HR                     24
 531 #define ERR_RECOVERY_IDLE_TIME          (ERR_IDLE_HR * BE_HOUR)
 532
 533 /* Time interval (in msec) after which UE recovery can be repeated */
 534 #define ERR_INTERVAL_HR                 72
 535 #define ERR_RECOVERY_INTERVAL           (ERR_INTERVAL_HR * BE_HOUR)
 536
 537 /* BEx/SH UE recovery state machine */
 538 enum {
 539         ERR_RECOVERY_ST_NONE = 0,               /* No Recovery */
 540         ERR_RECOVERY_ST_DETECT = 1,             /* UE detection duration */
 541         ERR_RECOVERY_ST_RESET = 2,              /* Reset Phase (PF0 only) */
 542         ERR_RECOVERY_ST_PRE_POLL = 3,           /* Pre-Poll Phase (all PFs) */
 543         ERR_RECOVERY_ST_REINIT = 4              /* Re-initialize Phase */
 544 };
 545
 546 struct be_error_recovery {
 547         /* Lancer error recovery variables */
 548         u8 recovery_retries;
 549
 550         /* BEx/Skyhawk error recovery variables */
 551         u8 recovery_state;
 552         u16 ue_to_reset_time;           /* Time after UE, to soft reset
 553                                          * the chip - PF0 only
 554                                          */
 555         u16 ue_to_poll_time;            /* Time after UE, to Restart Polling
 556                                          * of SLIPORT_SEMAPHORE reg
 557                                          */
 558         u16 last_err_code;
 559         bool recovery_supported;
 560         unsigned long probe_time;
 561         unsigned long last_recovery_time;
 562
 563         /* Common to both Lancer & BEx/SH error recovery */
 564         u32 resched_delay;
 565         struct delayed_work err_detection_work;
 566 };
 567
 568 /* Ethtool priv_flags */
 569 #define BE_DISABLE_TPE_RECOVERY 0x1
 570
 571 struct be_vxlan_port {
 572         struct list_head list;
 573         __be16 port;            /* VxLAN UDP dst port */
 574         int port_aliases;       /* alias count */
 575 };
 576
 577 struct be_adapter {
 578         struct pci_dev *pdev;
 579         struct net_device *netdev;
 580
 581         u8 __iomem *csr;        /* CSR BAR used only for BE2/3 */
 582         u8 __iomem *db;         /* Door Bell */
 583         u8 __iomem *pcicfg;     /* On SH,BEx only. Shadow of PCI config space */
 584
 585         struct mutex mbox_lock; /* For serializing mbox cmds to BE card */
 586         struct be_dma_mem mbox_mem;
 587         /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
 588          * is stored for freeing purpose */
 589         struct be_dma_mem mbox_mem_alloced;
 590
 591         struct be_mcc_obj mcc_obj;
 592         struct mutex mcc_lock;  /* For serializing mcc cmds to BE card */
 593         spinlock_t mcc_cq_lock;
 594
 595         u16 cfg_num_rx_irqs;            /* configured via set-channels */
 596         u16 cfg_num_tx_irqs;            /* configured via set-channels */
 597         u16 num_evt_qs;
 598         u16 num_msix_vec;
 599         struct be_eq_obj eq_obj[MAX_EVT_QS];
 600         struct msix_entry msix_entries[MAX_MSIX_VECTORS];
 601         bool isr_registered;
 602
 603         /* TX Rings */
 604         u16 num_tx_qs;
 605         struct be_tx_obj tx_obj[MAX_TX_QS];
 606
 607         /* Rx rings */
 608         u16 num_rx_qs;
 609         u16 num_rss_qs;
 610         u16 need_def_rxq;
 611         struct be_rx_obj rx_obj[MAX_RX_QS];
 612         u32 big_page_size;      /* Compounded page size shared by rx wrbs */
 613
 614         struct be_drv_stats drv_stats;
 615         struct be_aic_obj aic_obj[MAX_EVT_QS];
 616         u8 vlan_prio_bmap;      /* Available Priority BitMap */
 617         u16 recommended_prio_bits;/* Recommended Priority bits in vlan tag */
 618         struct be_dma_mem rx_filter; /* Cmd DMA mem for rx-filter */
 619
 620         struct be_dma_mem stats_cmd;
 621         /* Work queue used to perform periodic tasks like getting statistics */
 622         struct delayed_work work;
 623         u16 work_counter;
 624
 625         u8 recovery_retries;
 626         u8 err_flags;
 627         bool pcicfg_mapped;     /* pcicfg obtained via pci_iomap() */
 628         u32 flags;
 629         u32 cmd_privileges;
 630         /* Ethtool knobs and info */
 631         char fw_ver[FW_VER_LEN];
 632         char fw_on_flash[FW_VER_LEN];
 633
 634         /* IFACE filtering fields */
 635         int if_handle;          /* Used to configure filtering */
 636         u32 if_flags;           /* Interface filtering flags */
 637         u32 *pmac_id;           /* MAC addr handle used by BE card */
 638         struct be_eth_addr *uc_list;/* list of uc-addrs programmed (not perm) */
 639         u32 uc_macs;            /* Count of secondary UC MAC programmed */
 640         struct be_eth_addr *mc_list;/* list of mcast addrs programmed */
 641         u32 mc_count;
 642         unsigned long vids[BITS_TO_LONGS(VLAN_N_VID)];
 643         u16 vlans_added;
 644         bool update_uc_list;
 645         bool update_mc_list;
 646         struct mutex rx_filter_lock;/* For protecting vids[] & mc/uc_list[] */
 647
 648         u32 beacon_state;       /* for set_phys_id */
 649
 650         u32 port_num;
 651         char port_name;
 652         u8 mc_type;
 653         u32 function_mode;
 654         u32 function_caps;
 655         u32 rx_fc;              /* Rx flow control */
 656         u32 tx_fc;              /* Tx flow control */
 657         bool stats_cmd_sent;
 658         struct {
 659                 u32 size;
 660                 u32 total_size;
 661                 u64 io_addr;
 662         } roce_db;
 663         u32 num_msix_roce_vec;
 664         struct ocrdma_dev *ocrdma_dev;
 665         struct list_head entry;
 666
 667         u32 flash_status;
 668         struct completion et_cmd_compl;
 669
 670         struct be_resources pool_res;   /* resources available for the port */
 671         struct be_resources res;        /* resources available for the func */
 672         u16 num_vfs;                    /* Number of VFs provisioned by PF */
 673         u8 pf_num;                      /* Numbering used by FW, starts at 0 */
 674         u8 vf_num;                      /* Numbering used by FW, starts at 1 */
 675         u8 virtfn;
 676         struct be_vf_cfg *vf_cfg;
 677         bool be3_native;
 678         u32 sli_family;
 679         u8 hba_port_num;
 680         u16 pvid;
 681         __be16 vxlan_port;              /* offloaded vxlan port num */
 682         int vxlan_port_count;           /* active vxlan port count */
 683         struct list_head vxlan_port_list;       /* vxlan port list */
 684         struct phy_info phy;
 685         u8 wol_cap;
 686         bool wol_en;
 687         u16 asic_rev;
 688         u16 qnq_vid;
 689         u32 msg_enable;
 690         int be_get_temp_freq;
 691         struct be_hwmon hwmon_info;
 692         struct rss_info rss_info;
 693         /* Filters for packets that need to be sent to BMC */
 694         u32 bmc_filt_mask;
 695         u32 fat_dump_len;
 696         u16 serial_num[CNTL_SERIAL_NUM_WORDS];
 697         u8 phy_state; /* state of sfp optics (functional, faulted, etc.,) */
 698         u8 dev_mac[ETH_ALEN];
 699         u32 priv_flags; /* ethtool get/set_priv_flags() */
 700         struct be_error_recovery error_recovery;
 701 };
 702
 703 /* Used for defered FW config cmds. Add fields to this struct as reqd */
 704 struct be_cmd_work {
 705         struct work_struct work;
 706         struct be_adapter *adapter;
 707         union {
 708                 __be16 vxlan_port;
 709         } info;
 710 };
 711
 712 #define be_physfn(adapter)              (!adapter->virtfn)
 713 #define be_virtfn(adapter)              (adapter->virtfn)
 714 #define sriov_enabled(adapter)          (adapter->flags &       \
 715                                          BE_FLAGS_SRIOV_ENABLED)
 716
 717 #define for_all_vfs(adapter, vf_cfg, i)                                 \
 718         for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs; \
 719                 i++, vf_cfg++)
 720
 721 #define ON                              1
 722 #define OFF                             0
 723
 724 #define be_max_vlans(adapter)           (adapter->res.max_vlans)
 725 #define be_max_uc(adapter)              (adapter->res.max_uc_mac)
 726 #define be_max_mc(adapter)              (adapter->res.max_mcast_mac)
 727 #define be_max_vfs(adapter)             (adapter->pool_res.max_vfs)
 728 #define be_max_rss(adapter)             (adapter->res.max_rss_qs)
 729 #define be_max_txqs(adapter)            (adapter->res.max_tx_qs)
 730 #define be_max_prio_txqs(adapter)       (adapter->res.max_prio_tx_qs)
 731 #define be_max_rxqs(adapter)            (adapter->res.max_rx_qs)
 732 /* Max number of EQs available for the function (NIC + RoCE (if enabled)) */
 733 #define be_max_func_eqs(adapter)        (adapter->res.max_evt_qs)
 734 /* Max number of EQs available avaialble only for NIC */
 735 #define be_max_nic_eqs(adapter)         (adapter->res.max_nic_evt_qs)
 736 #define be_if_cap_flags(adapter)        (adapter->res.if_cap_flags)
 737 #define be_max_pf_pool_rss_tables(adapter)      \
 738                                 (adapter->pool_res.max_rss_tables)
 739 /* Max irqs avaialble for NIC */
 740 #define be_max_irqs(adapter)            \
 741                         (min_t(u16, be_max_nic_eqs(adapter), num_online_cpus()))
 742
 743 /* Max irqs *needed* for RX queues */
 744 static inline u16 be_max_rx_irqs(struct be_adapter *adapter)
 745 {
 746         /* If no RSS, need atleast one irq for def-RXQ */
 747         u16 num = max_t(u16, be_max_rss(adapter), 1);
 748
 749         return min_t(u16, num, be_max_irqs(adapter));
 750 }
 751
 752 /* Max irqs *needed* for TX queues */
 753 static inline u16 be_max_tx_irqs(struct be_adapter *adapter)
 754 {
 755         return min_t(u16, be_max_txqs(adapter), be_max_irqs(adapter));
 756 }
 757
 758 /* Max irqs *needed* for combined queues */
 759 static inline u16 be_max_qp_irqs(struct be_adapter *adapter)
 760 {
 761         return min(be_max_tx_irqs(adapter), be_max_rx_irqs(adapter));
 762 }
 763
 764 /* Max irqs *needed* for RX and TX queues together */
 765 static inline u16 be_max_any_irqs(struct be_adapter *adapter)
 766 {
 767         return max(be_max_tx_irqs(adapter), be_max_rx_irqs(adapter));
 768 }
 769
 770 /* Is BE in pvid_tagging mode */
 771 #define be_pvid_tagging_enabled(adapter)        (adapter->pvid)
 772
 773 /* Is BE in QNQ multi-channel mode */
 774 #define be_is_qnq_mode(adapter)         (adapter->function_mode & QNQ_MODE)
 775
 776 #define lancer_chip(adapter)    (adapter->pdev->device == OC_DEVICE_ID3 || \
 777                                  adapter->pdev->device == OC_DEVICE_ID4)
 778
 779 #define skyhawk_chip(adapter)   (adapter->pdev->device == OC_DEVICE_ID5 || \
 780                                  adapter->pdev->device == OC_DEVICE_ID6)
 781
 782 #define BE3_chip(adapter)       (adapter->pdev->device == BE_DEVICE_ID2 || \
 783                                  adapter->pdev->device == OC_DEVICE_ID2)
 784
 785 #define BE2_chip(adapter)       (adapter->pdev->device == BE_DEVICE_ID1 || \
 786                                  adapter->pdev->device == OC_DEVICE_ID1)
 787
 788 #define BEx_chip(adapter)       (BE3_chip(adapter) || BE2_chip(adapter))
 789
 790 #define be_roce_supported(adapter)      (skyhawk_chip(adapter) && \
 791                                         (adapter->function_mode & RDMA_ENABLED))
 792
 793 extern const struct ethtool_ops be_ethtool_ops;
 794
 795 #define msix_enabled(adapter)           (adapter->num_msix_vec > 0)
 796 #define num_irqs(adapter)               (msix_enabled(adapter) ?        \
 797                                                 adapter->num_msix_vec : 1)
 798 #define tx_stats(txo)                   (&(txo)->stats)
 799 #define rx_stats(rxo)                   (&(rxo)->stats)
 800
 801 /* The default RXQ is the last RXQ */
 802 #define default_rxo(adpt)               (&adpt->rx_obj[adpt->num_rx_qs - 1])
 803
 804 #define for_all_rx_queues(adapter, rxo, i)                              \
 805         for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;  \
 806                 i++, rxo++)
 807
 808 #define for_all_rss_queues(adapter, rxo, i)                             \
 809         for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rss_qs; \
 810                 i++, rxo++)
 811
 812 #define for_all_tx_queues(adapter, txo, i)                              \
 813         for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs;  \
 814                 i++, txo++)
 815
 816 #define for_all_evt_queues(adapter, eqo, i)                             \
 817         for (i = 0, eqo = &adapter->eq_obj[i]; i < adapter->num_evt_qs; \
 818                 i++, eqo++)
 819
 820 #define for_all_rx_queues_on_eq(adapter, eqo, rxo, i)                   \
 821         for (i = eqo->idx, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;\
 822                  i += adapter->num_evt_qs, rxo += adapter->num_evt_qs)
 823
 824 #define for_all_tx_queues_on_eq(adapter, eqo, txo, i)                   \
 825         for (i = eqo->idx, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs;\
 826                 i += adapter->num_evt_qs, txo += adapter->num_evt_qs)
 827
 828 #define is_mcc_eqo(eqo)                 (eqo->idx == 0)
 829 #define mcc_eqo(adapter)                (&adapter->eq_obj[0])
 830
 831 #define PAGE_SHIFT_4K           12
 832 #define PAGE_SIZE_4K            (1 << PAGE_SHIFT_4K)
 833
 834 /* Returns number of pages spanned by the data starting at the given addr */
 835 #define PAGES_4K_SPANNED(_address, size)                                \
 836                 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) +     \
 837                         (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
 838
 839 /* Returns bit offset within a DWORD of a bitfield */
 840 #define AMAP_BIT_OFFSET(_struct, field)                                 \
 841                 (((size_t)&(((_struct *)0)->field))%32)
 842
 843 /* Returns the bit mask of the field that is NOT shifted into location. */
 844 static inline u32 amap_mask(u32 bitsize)
 845 {
 846         return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
 847 }
 848
 849 static inline void
 850 amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
 851 {
 852         u32 *dw = (u32 *) ptr + dw_offset;
 853         *dw &= ~(mask << offset);
 854         *dw |= (mask & value) << offset;
 855 }
 856
 857 #define AMAP_SET_BITS(_struct, field, ptr, val)                         \
 858                 amap_set(ptr,                                           \
 859                         offsetof(_struct, field)/32,                    \
 860                         amap_mask(sizeof(((_struct *)0)->field)),       \
 861                         AMAP_BIT_OFFSET(_struct, field),                \
 862                         val)
 863
 864 static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
 865 {
 866         u32 *dw = (u32 *) ptr;
 867         return mask & (*(dw + dw_offset) >> offset);
 868 }
 869
 870 #define AMAP_GET_BITS(_struct, field, ptr)                              \
 871                 amap_get(ptr,                                           \
 872                         offsetof(_struct, field)/32,                    \
 873                         amap_mask(sizeof(((_struct *)0)->field)),       \
 874                         AMAP_BIT_OFFSET(_struct, field))
 875
 876 #define GET_RX_COMPL_V0_BITS(field, ptr)                                \
 877                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, field, ptr)
 878
 879 #define GET_RX_COMPL_V1_BITS(field, ptr)                                \
 880                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, field, ptr)
 881
 882 #define GET_TX_COMPL_BITS(field, ptr)                                   \
 883                 AMAP_GET_BITS(struct amap_eth_tx_compl, field, ptr)
 884
 885 #define SET_TX_WRB_HDR_BITS(field, ptr, val)                            \
 886                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, field, ptr, val)
 887
 888 #define be_dws_cpu_to_le(wrb, len)      swap_dws(wrb, len)
 889 #define be_dws_le_to_cpu(wrb, len)      swap_dws(wrb, len)
 890 static inline void swap_dws(void *wrb, int len)
 891 {
 892 #ifdef __BIG_ENDIAN
 893         u32 *dw = wrb;
 894         BUG_ON(len % 4);
 895         do {
 896                 *dw = cpu_to_le32(*dw);
 897                 dw++;
 898                 len -= 4;
 899         } while (len);
 900 #endif                          /* __BIG_ENDIAN */
 901 }
 902
 903 #define be_cmd_status(status)           (status > 0 ? -EIO : status)
 904
 905 static inline u8 is_tcp_pkt(struct sk_buff *skb)
 906 {
 907         u8 val = 0;
 908
 909         if (ip_hdr(skb)->version == 4)
 910                 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
 911         else if (ip_hdr(skb)->version == 6)
 912                 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
 913
 914         return val;
 915 }
 916
 917 static inline u8 is_udp_pkt(struct sk_buff *skb)
 918 {
 919         u8 val = 0;
 920
 921         if (ip_hdr(skb)->version == 4)
 922                 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
 923         else if (ip_hdr(skb)->version == 6)
 924                 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
 925
 926         return val;
 927 }
 928
 929 static inline bool is_ipv4_pkt(struct sk_buff *skb)
 930 {
 931         return skb->protocol == htons(ETH_P_IP) && ip_hdr(skb)->version == 4;
 932 }
 933
 934 static inline bool is_ipv6_ext_hdr(struct sk_buff *skb)
 935 {
 936         if (ip_hdr(skb)->version == 6)
 937                 return ipv6_ext_hdr(ipv6_hdr(skb)->nexthdr);
 938         else
 939                 return false;
 940 }
 941
 942 #define be_error_recovering(adapter)    \
 943                 (adapter->flags & BE_FLAGS_TRY_RECOVERY)
 944
 945 #define BE_ERROR_EEH            1
 946 #define BE_ERROR_UE             BIT(1)
 947 #define BE_ERROR_FW             BIT(2)
 948 #define BE_ERROR_TX             BIT(3)
 949 #define BE_ERROR_HW             (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_TX)
 950 #define BE_ERROR_ANY            (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_FW | \
 951                                  BE_ERROR_TX)
 952 #define BE_CLEAR_ALL            0xFF
 953
 954 static inline u8 be_check_error(struct be_adapter *adapter, u32 err_type)
 955 {
 956         return (adapter->err_flags & err_type);
 957 }
 958
 959 static inline void be_set_error(struct be_adapter *adapter, int err_type)
 960 {
 961         struct net_device *netdev = adapter->netdev;
 962
 963         adapter->err_flags |= err_type;
 964         netif_carrier_off(netdev);
 965
 966         dev_info(&adapter->pdev->dev, "%s: Link down\n", netdev->name);
 967 }
 968
 969 static inline void  be_clear_error(struct be_adapter *adapter, int err_type)
 970 {
 971         adapter->err_flags &= ~err_type;
 972 }
 973
 974 static inline bool be_multi_rxq(const struct be_adapter *adapter)
 975 {
 976         return adapter->num_rx_qs > 1;
 977 }
 978
 979 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
 980                   u16 num_popped);
 981 void be_link_status_update(struct be_adapter *adapter, u8 link_status);
 982 void be_parse_stats(struct be_adapter *adapter);
 983 int be_load_fw(struct be_adapter *adapter, u8 *func);
 984 bool be_is_wol_supported(struct be_adapter *adapter);
 985 bool be_pause_supported(struct be_adapter *adapter);
 986 u32 be_get_fw_log_level(struct be_adapter *adapter);
 987 int be_update_queues(struct be_adapter *adapter);
 988 int be_poll(struct napi_struct *napi, int budget);
 989 void be_eqd_update(struct be_adapter *adapter, bool force_update);
 990
 991 /*
 992  * internal function to initialize-cleanup roce device.
 993  */
 994 void be_roce_dev_add(struct be_adapter *);
 995 void be_roce_dev_remove(struct be_adapter *);
 996
 997 /*
 998  * internal function to open-close roce device during ifup-ifdown.
 999  */
1000 void be_roce_dev_shutdown(struct be_adapter *);
1001
1002 #endif                          /* BE_H */