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

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
MODULO
index_adv
index_inc
queue_head_node
queue_tail_node
queue_index_node
queue_head_inc
index_dec
queue_tail_inc
be_max_rx_irqs
be_max_tx_irqs
be_max_qp_irqs
be_max_any_irqs
amap_mask
amap_set
amap_get
swap_dws
is_tcp_pkt
is_udp_pkt
is_ipv4_pkt
is_ipv6_ext_hdr
be_check_error
be_set_error
be_clear_error
be_multi_rxq
   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_VER                 "12.0.0.0"
  37 #define DRV_NAME                "be2net"
  38 #define BE_NAME                 "Emulex BladeEngine2"
  39 #define BE3_NAME                "Emulex BladeEngine3"
  40 #define OC_NAME                 "Emulex OneConnect"
  41 #define OC_NAME_BE              OC_NAME "(be3)"
  42 #define OC_NAME_LANCER          OC_NAME "(Lancer)"
  43 #define OC_NAME_SH              OC_NAME "(Skyhawk)"
  44 #define DRV_DESC                "Emulex OneConnect NIC Driver"
  45 
  46 #define BE_VENDOR_ID            0x19a2
  47 #define EMULEX_VENDOR_ID        0x10df
  48 #define BE_DEVICE_ID1           0x211
  49 #define BE_DEVICE_ID2           0x221
  50 #define OC_DEVICE_ID1           0x700   /* Device Id for BE2 cards */
  51 #define OC_DEVICE_ID2           0x710   /* Device Id for BE3 cards */
  52 #define OC_DEVICE_ID3           0xe220  /* Device id for Lancer cards */
  53 #define OC_DEVICE_ID4           0xe228   /* Device id for VF in Lancer */
  54 #define OC_DEVICE_ID5           0x720   /* Device Id for Skyhawk cards */
  55 #define OC_DEVICE_ID6           0x728   /* Device id for VF in SkyHawk */
  56 #define OC_SUBSYS_DEVICE_ID1    0xE602
  57 #define OC_SUBSYS_DEVICE_ID2    0xE642
  58 #define OC_SUBSYS_DEVICE_ID3    0xE612
  59 #define OC_SUBSYS_DEVICE_ID4    0xE652
  60 
  61 /* Number of bytes of an RX frame that are copied to skb->data */
  62 #define BE_HDR_LEN              ((u16) 64)
  63 /* allocate extra space to allow tunneling decapsulation without head reallocation */
  64 #define BE_RX_SKB_ALLOC_SIZE    256
  65 
  66 #define BE_MAX_JUMBO_FRAME_SIZE 9018
  67 #define BE_MIN_MTU              256
  68 #define BE_MAX_MTU              (BE_MAX_JUMBO_FRAME_SIZE -      \
  69                                  (ETH_HLEN + ETH_FCS_LEN))
  70 
  71 /* Accommodate for QnQ configurations where VLAN insertion is enabled in HW */
  72 #define BE_MAX_GSO_SIZE         (65535 - 2 * VLAN_HLEN)
  73 
  74 #define BE_NUM_VLANS_SUPPORTED  64
  75 #define BE_MAX_EQD              128u
  76 #define BE_MAX_TX_FRAG_COUNT    30
  77 
  78 #define EVNT_Q_LEN              1024
  79 #define TX_Q_LEN                2048
  80 #define TX_CQ_LEN               1024
  81 #define RX_Q_LEN                1024    /* Does not support any other value */
  82 #define RX_CQ_LEN               1024
  83 #define MCC_Q_LEN               128     /* total size not to exceed 8 pages */
  84 #define MCC_CQ_LEN              256
  85 
  86 #define BE2_MAX_RSS_QS          4
  87 #define BE3_MAX_RSS_QS          16
  88 #define BE3_MAX_TX_QS           16
  89 #define BE3_MAX_EVT_QS          16
  90 #define BE3_SRIOV_MAX_EVT_QS    8
  91 #define SH_VF_MAX_NIC_EQS       3       /* Skyhawk VFs can have a max of 4 EQs
  92                                          * and at least 1 is granted to either
  93                                          * SURF/DPDK
  94                                          */
  95 
  96 #define MAX_PORT_RSS_TABLES     15
  97 #define MAX_NIC_FUNCS           16
  98 #define MAX_RX_QS               32
  99 #define MAX_EVT_QS              32
 100 #define MAX_TX_QS               32
 101 
 102 #define MAX_ROCE_EQS            5
 103 #define MAX_MSIX_VECTORS        32
 104 #define MIN_MSIX_VECTORS        1
 105 #define BE_NAPI_WEIGHT          64
 106 #define MAX_RX_POST             BE_NAPI_WEIGHT /* Frags posted at a time */
 107 #define RX_FRAGS_REFILL_WM      (RX_Q_LEN - MAX_RX_POST)
 108 #define MAX_NUM_POST_ERX_DB     255u
 109 
 110 #define MAX_VFS                 30 /* Max VFs supported by BE3 FW */
 111 #define FW_VER_LEN              32
 112 #define CNTL_SERIAL_NUM_WORDS   8  /* Controller serial number words */
 113 #define CNTL_SERIAL_NUM_WORD_SZ (sizeof(u16)) /* Byte-sz of serial num word */
 114 
 115 #define RSS_INDIR_TABLE_LEN     128
 116 #define RSS_HASH_KEY_LEN        40
 117 
 118 #define BE_UNKNOWN_PHY_STATE    0xFF
 119 
 120 struct be_dma_mem {
 121         void *va;
 122         dma_addr_t dma;
 123         u32 size;
 124 };
 125 
 126 struct be_queue_info {
 127         u32 len;
 128         u32 entry_size; /* Size of an element in the queue */
 129         u32 tail, head;
 130         atomic_t used;  /* Number of valid elements in the queue */
 131         u32 id;
 132         struct be_dma_mem dma_mem;
 133         bool created;
 134 };
 135 
 136 static inline u32 MODULO(u32 val, u32 limit)
 137 {
 138         BUG_ON(limit & (limit - 1));
 139         return val & (limit - 1);
 140 }
 141 
 142 static inline void index_adv(u32 *index, u32 val, u32 limit)
 143 {
 144         *index = MODULO((*index + val), limit);
 145 }
 146 
 147 static inline void index_inc(u32 *index, u32 limit)
 148 {
 149         *index = MODULO((*index + 1), limit);
 150 }
 151 
 152 static inline void *queue_head_node(struct be_queue_info *q)
 153 {
 154         return q->dma_mem.va + q->head * q->entry_size;
 155 }
 156 
 157 static inline void *queue_tail_node(struct be_queue_info *q)
 158 {
 159         return q->dma_mem.va + q->tail * q->entry_size;
 160 }
 161 
 162 static inline void *queue_index_node(struct be_queue_info *q, u16 index)
 163 {
 164         return q->dma_mem.va + index * q->entry_size;
 165 }
 166 
 167 static inline void queue_head_inc(struct be_queue_info *q)
 168 {
 169         index_inc(&q->head, q->len);
 170 }
 171 
 172 static inline void index_dec(u32 *index, u32 limit)
 173 {
 174         *index = MODULO((*index - 1), limit);
 175 }
 176 
 177 static inline void queue_tail_inc(struct be_queue_info *q)
 178 {
 179         index_inc(&q->tail, q->len);
 180 }
 181 
 182 struct be_eq_obj {
 183         struct be_queue_info q;
 184         char desc[32];
 185 
 186         struct be_adapter *adapter;
 187         struct napi_struct napi;
 188         u8 idx;                 /* array index */
 189         u8 msix_idx;
 190         u16 spurious_intr;
 191         cpumask_var_t  affinity_mask;
 192 } ____cacheline_aligned_in_smp;
 193 
 194 struct be_aic_obj {             /* Adaptive interrupt coalescing (AIC) info */
 195         u32 min_eqd;            /* in usecs */
 196         u32 max_eqd;            /* in usecs */
 197         u32 prev_eqd;           /* in usecs */
 198         u32 et_eqd;             /* configured val when aic is off */
 199         ulong jiffies;
 200         u64 rx_pkts_prev;       /* Used to calculate RX pps */
 201         u64 tx_reqs_prev;       /* Used to calculate TX pps */
 202 };
 203 
 204 struct be_mcc_obj {
 205         struct be_queue_info q;
 206         struct be_queue_info cq;
 207         bool rearm_cq;
 208 };
 209 
 210 struct be_tx_stats {
 211         u64 tx_bytes;
 212         u64 tx_pkts;
 213         u64 tx_vxlan_offload_pkts;
 214         u64 tx_reqs;
 215         u64 tx_compl;
 216         u32 tx_stops;
 217         u32 tx_drv_drops;       /* pkts dropped by driver */
 218         /* the error counters are described in be_ethtool.c */
 219         u32 tx_hdr_parse_err;
 220         u32 tx_dma_err;
 221         u32 tx_tso_err;
 222         u32 tx_spoof_check_err;
 223         u32 tx_qinq_err;
 224         u32 tx_internal_parity_err;
 225         u32 tx_sge_err;
 226         struct u64_stats_sync sync;
 227         struct u64_stats_sync sync_compl;
 228 };
 229 
 230 /* Structure to hold some data of interest obtained from a TX CQE */
 231 struct be_tx_compl_info {
 232         u8 status;              /* Completion status */
 233         u16 end_index;          /* Completed TXQ Index */
 234 };
 235 
 236 struct be_tx_obj {
 237         u32 db_offset;
 238         struct be_tx_compl_info txcp;
 239         struct be_queue_info q;
 240         struct be_queue_info cq;
 241         /* Remember the skbs that were transmitted */
 242         struct sk_buff *sent_skb_list[TX_Q_LEN];
 243         struct be_tx_stats stats;
 244         u16 pend_wrb_cnt;       /* Number of WRBs yet to be given to HW */
 245         u16 last_req_wrb_cnt;   /* wrb cnt of the last req in the Q */
 246         u16 last_req_hdr;       /* index of the last req's hdr-wrb */
 247 } ____cacheline_aligned_in_smp;
 248 
 249 /* Struct to remember the pages posted for rx frags */
 250 struct be_rx_page_info {
 251         struct page *page;
 252         /* set to page-addr for last frag of the page & frag-addr otherwise */
 253         DEFINE_DMA_UNMAP_ADDR(bus);
 254         u16 page_offset;
 255         bool last_frag;         /* last frag of the page */
 256 };
 257 
 258 struct be_rx_stats {
 259         u64 rx_bytes;
 260         u64 rx_pkts;
 261         u64 rx_vxlan_offload_pkts;
 262         u32 rx_drops_no_skbs;   /* skb allocation errors */
 263         u32 rx_drops_no_frags;  /* HW has no fetched frags */
 264         u32 rx_post_fail;       /* page post alloc failures */
 265         u32 rx_compl;
 266         u32 rx_mcast_pkts;
 267         u32 rx_compl_err;       /* completions with err set */
 268         struct u64_stats_sync sync;
 269 };
 270 
 271 struct be_rx_compl_info {
 272         u32 rss_hash;
 273         u16 vlan_tag;
 274         u16 pkt_size;
 275         u16 port;
 276         u8 vlanf;
 277         u8 num_rcvd;
 278         u8 err;
 279         u8 ipf;
 280         u8 tcpf;
 281         u8 udpf;
 282         u8 ip_csum;
 283         u8 l4_csum;
 284         u8 ipv6;
 285         u8 qnq;
 286         u8 pkt_type;
 287         u8 ip_frag;
 288         u8 tunneled;
 289 };
 290 
 291 struct be_rx_obj {
 292         struct be_adapter *adapter;
 293         struct be_queue_info q;
 294         struct be_queue_info cq;
 295         struct be_rx_compl_info rxcp;
 296         struct be_rx_page_info page_info_tbl[RX_Q_LEN];
 297         struct be_rx_stats stats;
 298         u8 rss_id;
 299         bool rx_post_starved;   /* Zero rx frags have been posted to BE */
 300 } ____cacheline_aligned_in_smp;
 301 
 302 struct be_drv_stats {
 303         u32 eth_red_drops;
 304         u32 dma_map_errors;
 305         u32 rx_drops_no_pbuf;
 306         u32 rx_drops_no_txpb;
 307         u32 rx_drops_no_erx_descr;
 308         u32 rx_drops_no_tpre_descr;
 309         u32 rx_drops_too_many_frags;
 310         u32 forwarded_packets;
 311         u32 rx_drops_mtu;
 312         u32 rx_crc_errors;
 313         u32 rx_alignment_symbol_errors;
 314         u32 rx_pause_frames;
 315         u32 rx_priority_pause_frames;
 316         u32 rx_control_frames;
 317         u32 rx_in_range_errors;
 318         u32 rx_out_range_errors;
 319         u32 rx_frame_too_long;
 320         u32 rx_address_filtered;
 321         u32 rx_dropped_too_small;
 322         u32 rx_dropped_too_short;
 323         u32 rx_dropped_header_too_small;
 324         u32 rx_dropped_tcp_length;
 325         u32 rx_dropped_runt;
 326         u32 rx_ip_checksum_errs;
 327         u32 rx_tcp_checksum_errs;
 328         u32 rx_udp_checksum_errs;
 329         u32 tx_pauseframes;
 330         u32 tx_priority_pauseframes;
 331         u32 tx_controlframes;
 332         u32 rxpp_fifo_overflow_drop;
 333         u32 rx_input_fifo_overflow_drop;
 334         u32 pmem_fifo_overflow_drop;
 335         u32 jabber_events;
 336         u32 rx_roce_bytes_lsd;
 337         u32 rx_roce_bytes_msd;
 338         u32 rx_roce_frames;
 339         u32 roce_drops_payload_len;
 340         u32 roce_drops_crc;
 341 };
 342 
 343 /* A vlan-id of 0xFFFF must be used to clear transparent vlan-tagging */
 344 #define BE_RESET_VLAN_TAG_ID    0xFFFF
 345 
 346 struct be_vf_cfg {
 347         unsigned char mac_addr[ETH_ALEN];
 348         int if_handle;
 349         int pmac_id;
 350         u16 vlan_tag;
 351         u32 tx_rate;
 352         u32 plink_tracking;
 353         u32 privileges;
 354         bool spoofchk;
 355 };
 356 
 357 enum vf_state {
 358         ENABLED = 0,
 359         ASSIGNED = 1
 360 };
 361 
 362 #define BE_FLAGS_LINK_STATUS_INIT               BIT(1)
 363 #define BE_FLAGS_SRIOV_ENABLED                  BIT(2)
 364 #define BE_FLAGS_WORKER_SCHEDULED               BIT(3)
 365 #define BE_FLAGS_NAPI_ENABLED                   BIT(6)
 366 #define BE_FLAGS_QNQ_ASYNC_EVT_RCVD             BIT(7)
 367 #define BE_FLAGS_VXLAN_OFFLOADS                 BIT(8)
 368 #define BE_FLAGS_SETUP_DONE                     BIT(9)
 369 #define BE_FLAGS_PHY_MISCONFIGURED              BIT(10)
 370 #define BE_FLAGS_ERR_DETECTION_SCHEDULED        BIT(11)
 371 #define BE_FLAGS_OS2BMC                         BIT(12)
 372 #define BE_FLAGS_TRY_RECOVERY                   BIT(13)
 373 
 374 #define BE_UC_PMAC_COUNT                        30
 375 #define BE_VF_UC_PMAC_COUNT                     2
 376 
 377 #define MAX_ERR_RECOVERY_RETRY_COUNT            3
 378 #define ERR_DETECTION_DELAY                     1000
 379 
 380 /* Ethtool set_dump flags */
 381 #define LANCER_INITIATE_FW_DUMP                 0x1
 382 #define LANCER_DELETE_FW_DUMP                   0x2
 383 
 384 struct phy_info {
 385 /* From SFF-8472 spec */
 386 #define SFP_VENDOR_NAME_LEN                     17
 387         u8 transceiver;
 388         u8 autoneg;
 389         u8 fc_autoneg;
 390         u8 port_type;
 391         u16 phy_type;
 392         u16 interface_type;
 393         u32 misc_params;
 394         u16 auto_speeds_supported;
 395         u16 fixed_speeds_supported;
 396         int link_speed;
 397         u32 advertising;
 398         u32 supported;
 399         u8 cable_type;
 400         u8 vendor_name[SFP_VENDOR_NAME_LEN];
 401         u8 vendor_pn[SFP_VENDOR_NAME_LEN];
 402 };
 403 
 404 struct be_resources {
 405         u16 max_vfs;            /* Total VFs "really" supported by FW/HW */
 406         u16 max_mcast_mac;
 407         u16 max_tx_qs;
 408         u16 max_rss_qs;
 409         u16 max_rx_qs;
 410         u16 max_cq_count;
 411         u16 max_uc_mac;         /* Max UC MACs programmable */
 412         u16 max_vlans;          /* Number of vlans supported */
 413         u16 max_iface_count;
 414         u16 max_mcc_count;
 415         u16 max_evt_qs;
 416         u16 max_nic_evt_qs;     /* NIC's share of evt qs */
 417         u32 if_cap_flags;
 418         u32 vf_if_cap_flags;    /* VF if capability flags */
 419         u32 flags;
 420         /* Calculated PF Pool's share of RSS Tables. This is not enforced by
 421          * the FW, but is a self-imposed driver limitation.
 422          */
 423         u16 max_rss_tables;
 424 };
 425 
 426 /* These are port-wide values */
 427 struct be_port_resources {
 428         u16 max_vfs;
 429         u16 nic_pfs;
 430 };
 431 
 432 #define be_is_os2bmc_enabled(adapter) (adapter->flags & BE_FLAGS_OS2BMC)
 433 
 434 struct rss_info {
 435         u8 rsstable[RSS_INDIR_TABLE_LEN];
 436         u8 rss_queue[RSS_INDIR_TABLE_LEN];
 437         u8 rss_hkey[RSS_HASH_KEY_LEN];
 438         u64 rss_flags;
 439 };
 440 
 441 #define BE_INVALID_DIE_TEMP     0xFF
 442 struct be_hwmon {
 443         struct device *hwmon_dev;
 444         u8 be_on_die_temp;  /* Unit: millidegree Celsius */
 445 };
 446 
 447 /* Macros to read/write the 'features' word of be_wrb_params structure.
 448  */
 449 #define BE_WRB_F_BIT(name)                      BE_WRB_F_##name##_BIT
 450 #define BE_WRB_F_MASK(name)                     BIT_MASK(BE_WRB_F_##name##_BIT)
 451 
 452 #define BE_WRB_F_GET(word, name)        \
 453         (((word) & (BE_WRB_F_MASK(name))) >> BE_WRB_F_BIT(name))
 454 
 455 #define BE_WRB_F_SET(word, name, val)   \
 456         ((word) |= (((val) << BE_WRB_F_BIT(name)) & BE_WRB_F_MASK(name)))
 457 
 458 /* Feature/offload bits */
 459 enum {
 460         BE_WRB_F_CRC_BIT,               /* Ethernet CRC */
 461         BE_WRB_F_IPCS_BIT,              /* IP csum */
 462         BE_WRB_F_TCPCS_BIT,             /* TCP csum */
 463         BE_WRB_F_UDPCS_BIT,             /* UDP csum */
 464         BE_WRB_F_LSO_BIT,               /* LSO */
 465         BE_WRB_F_LSO6_BIT,              /* LSO6 */
 466         BE_WRB_F_VLAN_BIT,              /* VLAN */
 467         BE_WRB_F_VLAN_SKIP_HW_BIT,      /* Skip VLAN tag (workaround) */
 468         BE_WRB_F_OS2BMC_BIT             /* Send packet to the management ring */
 469 };
 470 
 471 /* The structure below provides a HW-agnostic abstraction of WRB params
 472  * retrieved from a TX skb. This is in turn passed to chip specific routines
 473  * during transmit, to set the corresponding params in the WRB.
 474  */
 475 struct be_wrb_params {
 476         u32 features;   /* Feature bits */
 477         u16 vlan_tag;   /* VLAN tag */
 478         u16 lso_mss;    /* MSS for LSO */
 479 };
 480 
 481 struct be_eth_addr {
 482         unsigned char mac[ETH_ALEN];
 483 };
 484 
 485 #define BE_SEC  1000                    /* in msec */
 486 #define BE_MIN  (60 * BE_SEC)           /* in msec */
 487 #define BE_HOUR (60 * BE_MIN)           /* in msec */
 488 
 489 #define ERR_RECOVERY_MAX_RETRY_COUNT            3
 490 #define ERR_RECOVERY_DETECTION_DELAY            BE_SEC
 491 #define ERR_RECOVERY_RETRY_DELAY                (30 * BE_SEC)
 492 
 493 /* UE-detection-duration in BEx/Skyhawk:
 494  * All PFs must wait for this duration after they detect UE before reading
 495  * SLIPORT_SEMAPHORE register. At the end of this duration, the Firmware
 496  * guarantees that the SLIPORT_SEMAPHORE register is updated to indicate
 497  * if the UE is recoverable.
 498  */
 499 #define ERR_RECOVERY_UE_DETECT_DURATION                 BE_SEC
 500 
 501 /* Initial idle time (in msec) to elapse after driver load,
 502  * before UE recovery is allowed.
 503  */
 504 #define ERR_IDLE_HR                     24
 505 #define ERR_RECOVERY_IDLE_TIME          (ERR_IDLE_HR * BE_HOUR)
 506 
 507 /* Time interval (in msec) after which UE recovery can be repeated */
 508 #define ERR_INTERVAL_HR                 72
 509 #define ERR_RECOVERY_INTERVAL           (ERR_INTERVAL_HR * BE_HOUR)
 510 
 511 /* BEx/SH UE recovery state machine */
 512 enum {
 513         ERR_RECOVERY_ST_NONE = 0,               /* No Recovery */
 514         ERR_RECOVERY_ST_DETECT = 1,             /* UE detection duration */
 515         ERR_RECOVERY_ST_RESET = 2,              /* Reset Phase (PF0 only) */
 516         ERR_RECOVERY_ST_PRE_POLL = 3,           /* Pre-Poll Phase (all PFs) */
 517         ERR_RECOVERY_ST_REINIT = 4              /* Re-initialize Phase */
 518 };
 519 
 520 struct be_error_recovery {
 521         union {
 522                 u8 recovery_retries;    /* used for Lancer              */
 523                 u8 recovery_state;      /* used for BEx and Skyhawk     */
 524         };
 525 
 526         /* BEx/Skyhawk error recovery variables */
 527         bool recovery_supported;
 528         u16 ue_to_reset_time;           /* Time after UE, to soft reset
 529                                          * the chip - PF0 only
 530                                          */
 531         u16 ue_to_poll_time;            /* Time after UE, to Restart Polling
 532                                          * of SLIPORT_SEMAPHORE reg
 533                                          */
 534         u16 last_err_code;
 535         unsigned long probe_time;
 536         unsigned long last_recovery_time;
 537 
 538         /* Common to both Lancer & BEx/SH error recovery */
 539         u32 resched_delay;
 540         struct delayed_work err_detection_work;
 541 };
 542 
 543 /* Ethtool priv_flags */
 544 #define BE_DISABLE_TPE_RECOVERY 0x1
 545 
 546 struct be_vxlan_port {
 547         struct list_head list;
 548         __be16 port;            /* VxLAN UDP dst port */
 549         int port_aliases;       /* alias count */
 550 };
 551 
 552 struct be_adapter {
 553         struct pci_dev *pdev;
 554         struct net_device *netdev;
 555 
 556         u8 __iomem *csr;        /* CSR BAR used only for BE2/3 */
 557         u8 __iomem *db;         /* Door Bell */
 558         u8 __iomem *pcicfg;     /* On SH,BEx only. Shadow of PCI config space */
 559 
 560         struct mutex mbox_lock; /* For serializing mbox cmds to BE card */
 561         struct be_dma_mem mbox_mem;
 562         /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
 563          * is stored for freeing purpose */
 564         struct be_dma_mem mbox_mem_alloced;
 565 
 566         struct be_mcc_obj mcc_obj;
 567         struct mutex mcc_lock;  /* For serializing mcc cmds to BE card */
 568         spinlock_t mcc_cq_lock;
 569 
 570         u16 cfg_num_rx_irqs;            /* configured via set-channels */
 571         u16 cfg_num_tx_irqs;            /* configured via set-channels */
 572         u16 num_evt_qs;
 573         u16 num_msix_vec;
 574         struct be_eq_obj eq_obj[MAX_EVT_QS];
 575         struct msix_entry msix_entries[MAX_MSIX_VECTORS];
 576         bool isr_registered;
 577 
 578         /* TX Rings */
 579         u16 num_tx_qs;
 580         struct be_tx_obj tx_obj[MAX_TX_QS];
 581 
 582         /* Rx rings */
 583         u16 num_rx_qs;
 584         u16 num_rss_qs;
 585         u16 need_def_rxq;
 586         struct be_rx_obj rx_obj[MAX_RX_QS];
 587         u32 big_page_size;      /* Compounded page size shared by rx wrbs */
 588 
 589         struct be_drv_stats drv_stats;
 590         struct be_aic_obj aic_obj[MAX_EVT_QS];
 591         bool aic_enabled;
 592         u8 vlan_prio_bmap;      /* Available Priority BitMap */
 593         u16 recommended_prio_bits;/* Recommended Priority bits in vlan tag */
 594         struct be_dma_mem rx_filter; /* Cmd DMA mem for rx-filter */
 595 
 596         struct be_dma_mem stats_cmd;
 597         /* Work queue used to perform periodic tasks like getting statistics */
 598         struct delayed_work work;
 599         u16 work_counter;
 600 
 601         u8 recovery_retries;
 602         u8 err_flags;
 603         bool pcicfg_mapped;     /* pcicfg obtained via pci_iomap() */
 604         u32 flags;
 605         u32 cmd_privileges;
 606         /* Ethtool knobs and info */
 607         char fw_ver[FW_VER_LEN];
 608         char fw_on_flash[FW_VER_LEN];
 609 
 610         /* IFACE filtering fields */
 611         int if_handle;          /* Used to configure filtering */
 612         u32 if_flags;           /* Interface filtering flags */
 613         u32 *pmac_id;           /* MAC addr handle used by BE card */
 614         struct be_eth_addr *uc_list;/* list of uc-addrs programmed (not perm) */
 615         u32 uc_macs;            /* Count of secondary UC MAC programmed */
 616         struct be_eth_addr *mc_list;/* list of mcast addrs programmed */
 617         u32 mc_count;
 618         unsigned long vids[BITS_TO_LONGS(VLAN_N_VID)];
 619         u16 vlans_added;
 620         bool update_uc_list;
 621         bool update_mc_list;
 622         struct mutex rx_filter_lock;/* For protecting vids[] & mc/uc_list[] */
 623 
 624         u32 beacon_state;       /* for set_phys_id */
 625 
 626         u32 port_num;
 627         char port_name;
 628         u8 mc_type;
 629         u32 function_mode;
 630         u32 function_caps;
 631         u32 rx_fc;              /* Rx flow control */
 632         u32 tx_fc;              /* Tx flow control */
 633         bool stats_cmd_sent;
 634         struct {
 635                 u32 size;
 636                 u32 total_size;
 637                 u64 io_addr;
 638         } roce_db;
 639         u32 num_msix_roce_vec;
 640         struct ocrdma_dev *ocrdma_dev;
 641         struct list_head entry;
 642 
 643         u32 flash_status;
 644         struct completion et_cmd_compl;
 645 
 646         struct be_resources pool_res;   /* resources available for the port */
 647         struct be_resources res;        /* resources available for the func */
 648         u16 num_vfs;                    /* Number of VFs provisioned by PF */
 649         u8 pf_num;                      /* Numbering used by FW, starts at 0 */
 650         u8 vf_num;                      /* Numbering used by FW, starts at 1 */
 651         u8 virtfn;
 652         struct be_vf_cfg *vf_cfg;
 653         bool be3_native;
 654         u32 sli_family;
 655         u8 hba_port_num;
 656         u16 pvid;
 657         __be16 vxlan_port;              /* offloaded vxlan port num */
 658         int vxlan_port_count;           /* active vxlan port count */
 659         struct list_head vxlan_port_list;       /* vxlan port list */
 660         struct phy_info phy;
 661         u8 wol_cap;
 662         bool wol_en;
 663         u16 asic_rev;
 664         u16 qnq_vid;
 665         u32 msg_enable;
 666         int be_get_temp_freq;
 667         struct be_hwmon hwmon_info;
 668         struct rss_info rss_info;
 669         /* Filters for packets that need to be sent to BMC */
 670         u32 bmc_filt_mask;
 671         u32 fat_dump_len;
 672         u16 serial_num[CNTL_SERIAL_NUM_WORDS];
 673         u8 phy_state; /* state of sfp optics (functional, faulted, etc.,) */
 674         u8 dev_mac[ETH_ALEN];
 675         u32 priv_flags; /* ethtool get/set_priv_flags() */
 676         struct be_error_recovery error_recovery;
 677 };
 678 
 679 /* Used for defered FW config cmds. Add fields to this struct as reqd */
 680 struct be_cmd_work {
 681         struct work_struct work;
 682         struct be_adapter *adapter;
 683         union {
 684                 __be16 vxlan_port;
 685         } info;
 686 };
 687 
 688 #define be_physfn(adapter)              (!adapter->virtfn)
 689 #define be_virtfn(adapter)              (adapter->virtfn)
 690 #define sriov_enabled(adapter)          (adapter->flags &       \
 691                                          BE_FLAGS_SRIOV_ENABLED)
 692 
 693 #define for_all_vfs(adapter, vf_cfg, i)                                 \
 694         for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs; \
 695                 i++, vf_cfg++)
 696 
 697 #define ON                              1
 698 #define OFF                             0
 699 
 700 #define be_max_vlans(adapter)           (adapter->res.max_vlans)
 701 #define be_max_uc(adapter)              (adapter->res.max_uc_mac)
 702 #define be_max_mc(adapter)              (adapter->res.max_mcast_mac)
 703 #define be_max_vfs(adapter)             (adapter->pool_res.max_vfs)
 704 #define be_max_rss(adapter)             (adapter->res.max_rss_qs)
 705 #define be_max_txqs(adapter)            (adapter->res.max_tx_qs)
 706 #define be_max_prio_txqs(adapter)       (adapter->res.max_prio_tx_qs)
 707 #define be_max_rxqs(adapter)            (adapter->res.max_rx_qs)
 708 /* Max number of EQs available for the function (NIC + RoCE (if enabled)) */
 709 #define be_max_func_eqs(adapter)        (adapter->res.max_evt_qs)
 710 /* Max number of EQs available avaialble only for NIC */
 711 #define be_max_nic_eqs(adapter)         (adapter->res.max_nic_evt_qs)
 712 #define be_if_cap_flags(adapter)        (adapter->res.if_cap_flags)
 713 #define be_max_pf_pool_rss_tables(adapter)      \
 714                                 (adapter->pool_res.max_rss_tables)
 715 /* Max irqs avaialble for NIC */
 716 #define be_max_irqs(adapter)            \
 717                         (min_t(u16, be_max_nic_eqs(adapter), num_online_cpus()))
 718 
 719 /* Max irqs *needed* for RX queues */
 720 static inline u16 be_max_rx_irqs(struct be_adapter *adapter)
 721 {
 722         /* If no RSS, need atleast one irq for def-RXQ */
 723         u16 num = max_t(u16, be_max_rss(adapter), 1);
 724 
 725         return min_t(u16, num, be_max_irqs(adapter));
 726 }
 727 
 728 /* Max irqs *needed* for TX queues */
 729 static inline u16 be_max_tx_irqs(struct be_adapter *adapter)
 730 {
 731         return min_t(u16, be_max_txqs(adapter), be_max_irqs(adapter));
 732 }
 733 
 734 /* Max irqs *needed* for combined queues */
 735 static inline u16 be_max_qp_irqs(struct be_adapter *adapter)
 736 {
 737         return min(be_max_tx_irqs(adapter), be_max_rx_irqs(adapter));
 738 }
 739 
 740 /* Max irqs *needed* for RX and TX queues together */
 741 static inline u16 be_max_any_irqs(struct be_adapter *adapter)
 742 {
 743         return max(be_max_tx_irqs(adapter), be_max_rx_irqs(adapter));
 744 }
 745 
 746 /* Is BE in pvid_tagging mode */
 747 #define be_pvid_tagging_enabled(adapter)        (adapter->pvid)
 748 
 749 /* Is BE in QNQ multi-channel mode */
 750 #define be_is_qnq_mode(adapter)         (adapter->function_mode & QNQ_MODE)
 751 
 752 #ifdef CONFIG_BE2NET_LANCER
 753 #define lancer_chip(adapter)    (adapter->pdev->device == OC_DEVICE_ID3 || \
 754                                  adapter->pdev->device == OC_DEVICE_ID4)
 755 #else
 756 #define lancer_chip(adapter)    (0)
 757 #endif /* CONFIG_BE2NET_LANCER */
 758 
 759 #ifdef CONFIG_BE2NET_SKYHAWK
 760 #define skyhawk_chip(adapter)   (adapter->pdev->device == OC_DEVICE_ID5 || \
 761                                  adapter->pdev->device == OC_DEVICE_ID6)
 762 #else
 763 #define skyhawk_chip(adapter)   (0)
 764 #endif /* CONFIG_BE2NET_SKYHAWK */
 765 
 766 #ifdef CONFIG_BE2NET_BE3
 767 #define BE3_chip(adapter)       (adapter->pdev->device == BE_DEVICE_ID2 || \
 768                                  adapter->pdev->device == OC_DEVICE_ID2)
 769 #else
 770 #define BE3_chip(adapter)       (0)
 771 #endif /* CONFIG_BE2NET_BE3 */
 772 
 773 #ifdef CONFIG_BE2NET_BE2
 774 #define BE2_chip(adapter)       (adapter->pdev->device == BE_DEVICE_ID1 || \
 775                                  adapter->pdev->device == OC_DEVICE_ID1)
 776 #else
 777 #define BE2_chip(adapter)       (0)
 778 #endif /* CONFIG_BE2NET_BE2 */
 779 
 780 #define BEx_chip(adapter)       (BE3_chip(adapter) || BE2_chip(adapter))
 781 
 782 #define be_roce_supported(adapter)      (skyhawk_chip(adapter) && \
 783                                         (adapter->function_mode & RDMA_ENABLED))
 784 
 785 extern const struct ethtool_ops be_ethtool_ops;
 786 
 787 #define msix_enabled(adapter)           (adapter->num_msix_vec > 0)
 788 #define num_irqs(adapter)               (msix_enabled(adapter) ?        \
 789                                                 adapter->num_msix_vec : 1)
 790 #define tx_stats(txo)                   (&(txo)->stats)
 791 #define rx_stats(rxo)                   (&(rxo)->stats)
 792 
 793 /* The default RXQ is the last RXQ */
 794 #define default_rxo(adpt)               (&adpt->rx_obj[adpt->num_rx_qs - 1])
 795 
 796 #define for_all_rx_queues(adapter, rxo, i)                              \
 797         for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;  \
 798                 i++, rxo++)
 799 
 800 #define for_all_rss_queues(adapter, rxo, i)                             \
 801         for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rss_qs; \
 802                 i++, rxo++)
 803 
 804 #define for_all_tx_queues(adapter, txo, i)                              \
 805         for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs;  \
 806                 i++, txo++)
 807 
 808 #define for_all_evt_queues(adapter, eqo, i)                             \
 809         for (i = 0, eqo = &adapter->eq_obj[i]; i < adapter->num_evt_qs; \
 810                 i++, eqo++)
 811 
 812 #define for_all_rx_queues_on_eq(adapter, eqo, rxo, i)                   \
 813         for (i = eqo->idx, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;\
 814                  i += adapter->num_evt_qs, rxo += adapter->num_evt_qs)
 815 
 816 #define for_all_tx_queues_on_eq(adapter, eqo, txo, i)                   \
 817         for (i = eqo->idx, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs;\
 818                 i += adapter->num_evt_qs, txo += adapter->num_evt_qs)
 819 
 820 #define is_mcc_eqo(eqo)                 (eqo->idx == 0)
 821 #define mcc_eqo(adapter)                (&adapter->eq_obj[0])
 822 
 823 #define PAGE_SHIFT_4K           12
 824 #define PAGE_SIZE_4K            (1 << PAGE_SHIFT_4K)
 825 
 826 /* Returns number of pages spanned by the data starting at the given addr */
 827 #define PAGES_4K_SPANNED(_address, size)                                \
 828                 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) +     \
 829                         (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
 830 
 831 /* Returns bit offset within a DWORD of a bitfield */
 832 #define AMAP_BIT_OFFSET(_struct, field)                                 \
 833                 (((size_t)&(((_struct *)0)->field))%32)
 834 
 835 /* Returns the bit mask of the field that is NOT shifted into location. */
 836 static inline u32 amap_mask(u32 bitsize)
 837 {
 838         return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
 839 }
 840 
 841 static inline void
 842 amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
 843 {
 844         u32 *dw = (u32 *) ptr + dw_offset;
 845         *dw &= ~(mask << offset);
 846         *dw |= (mask & value) << offset;
 847 }
 848 
 849 #define AMAP_SET_BITS(_struct, field, ptr, val)                         \
 850                 amap_set(ptr,                                           \
 851                         offsetof(_struct, field)/32,                    \
 852                         amap_mask(sizeof(((_struct *)0)->field)),       \
 853                         AMAP_BIT_OFFSET(_struct, field),                \
 854                         val)
 855 
 856 static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
 857 {
 858         u32 *dw = (u32 *) ptr;
 859         return mask & (*(dw + dw_offset) >> offset);
 860 }
 861 
 862 #define AMAP_GET_BITS(_struct, field, ptr)                              \
 863                 amap_get(ptr,                                           \
 864                         offsetof(_struct, field)/32,                    \
 865                         amap_mask(sizeof(((_struct *)0)->field)),       \
 866                         AMAP_BIT_OFFSET(_struct, field))
 867 
 868 #define GET_RX_COMPL_V0_BITS(field, ptr)                                \
 869                 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, field, ptr)
 870 
 871 #define GET_RX_COMPL_V1_BITS(field, ptr)                                \
 872                 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, field, ptr)
 873 
 874 #define GET_TX_COMPL_BITS(field, ptr)                                   \
 875                 AMAP_GET_BITS(struct amap_eth_tx_compl, field, ptr)
 876 
 877 #define SET_TX_WRB_HDR_BITS(field, ptr, val)                            \
 878                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, field, ptr, val)
 879 
 880 #define be_dws_cpu_to_le(wrb, len)      swap_dws(wrb, len)
 881 #define be_dws_le_to_cpu(wrb, len)      swap_dws(wrb, len)
 882 static inline void swap_dws(void *wrb, int len)
 883 {
 884 #ifdef __BIG_ENDIAN
 885         u32 *dw = wrb;
 886         BUG_ON(len % 4);
 887         do {
 888                 *dw = cpu_to_le32(*dw);
 889                 dw++;
 890                 len -= 4;
 891         } while (len);
 892 #endif                          /* __BIG_ENDIAN */
 893 }
 894 
 895 #define be_cmd_status(status)           (status > 0 ? -EIO : status)
 896 
 897 static inline u8 is_tcp_pkt(struct sk_buff *skb)
 898 {
 899         u8 val = 0;
 900 
 901         if (ip_hdr(skb)->version == 4)
 902                 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
 903         else if (ip_hdr(skb)->version == 6)
 904                 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
 905 
 906         return val;
 907 }
 908 
 909 static inline u8 is_udp_pkt(struct sk_buff *skb)
 910 {
 911         u8 val = 0;
 912 
 913         if (ip_hdr(skb)->version == 4)
 914                 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
 915         else if (ip_hdr(skb)->version == 6)
 916                 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
 917 
 918         return val;
 919 }
 920 
 921 static inline bool is_ipv4_pkt(struct sk_buff *skb)
 922 {
 923         return skb->protocol == htons(ETH_P_IP) && ip_hdr(skb)->version == 4;
 924 }
 925 
 926 static inline bool is_ipv6_ext_hdr(struct sk_buff *skb)
 927 {
 928         if (ip_hdr(skb)->version == 6)
 929                 return ipv6_ext_hdr(ipv6_hdr(skb)->nexthdr);
 930         else
 931                 return false;
 932 }
 933 
 934 #define be_error_recovering(adapter)    \
 935                 (adapter->flags & BE_FLAGS_TRY_RECOVERY)
 936 
 937 #define BE_ERROR_EEH            1
 938 #define BE_ERROR_UE             BIT(1)
 939 #define BE_ERROR_FW             BIT(2)
 940 #define BE_ERROR_TX             BIT(3)
 941 #define BE_ERROR_HW             (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_TX)
 942 #define BE_ERROR_ANY            (BE_ERROR_EEH | BE_ERROR_UE | BE_ERROR_FW | \
 943                                  BE_ERROR_TX)
 944 #define BE_CLEAR_ALL            0xFF
 945 
 946 static inline u8 be_check_error(struct be_adapter *adapter, u32 err_type)
 947 {
 948         return (adapter->err_flags & err_type);
 949 }
 950 
 951 static inline void be_set_error(struct be_adapter *adapter, int err_type)
 952 {
 953         struct net_device *netdev = adapter->netdev;
 954 
 955         adapter->err_flags |= err_type;
 956         netif_carrier_off(netdev);
 957 
 958         dev_info(&adapter->pdev->dev, "%s: Link down\n", netdev->name);
 959 }
 960 
 961 static inline void  be_clear_error(struct be_adapter *adapter, int err_type)
 962 {
 963         adapter->err_flags &= ~err_type;
 964 }
 965 
 966 static inline bool be_multi_rxq(const struct be_adapter *adapter)
 967 {
 968         return adapter->num_rx_qs > 1;
 969 }
 970 
 971 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
 972                   u16 num_popped);
 973 void be_link_status_update(struct be_adapter *adapter, u8 link_status);
 974 void be_parse_stats(struct be_adapter *adapter);
 975 int be_load_fw(struct be_adapter *adapter, u8 *func);
 976 bool be_is_wol_supported(struct be_adapter *adapter);
 977 bool be_pause_supported(struct be_adapter *adapter);
 978 u32 be_get_fw_log_level(struct be_adapter *adapter);
 979 int be_update_queues(struct be_adapter *adapter);
 980 int be_poll(struct napi_struct *napi, int budget);
 981 void be_eqd_update(struct be_adapter *adapter, bool force_update);
 982 
 983 /*
 984  * internal function to initialize-cleanup roce device.
 985  */
 986 void be_roce_dev_add(struct be_adapter *);
 987 void be_roce_dev_remove(struct be_adapter *);
 988 
 989 /*
 990  * internal function to open-close roce device during ifup-ifdown.
 991  */
 992 void be_roce_dev_shutdown(struct be_adapter *);
 993 
 994 #endif                          /* BE_H */
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root/drivers/net/ethernet/emulex/benet/be.h

INCLUDED FROM

DEFINITIONS
