linux/drivers/net/cnic.h
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   1/* cnic.h: Broadcom CNIC core network driver.
   2 *
   3 * Copyright (c) 2006-2010 Broadcom Corporation
   4 *
   5 * This program is free software; you can redistribute it and/or modify
   6 * it under the terms of the GNU General Public License as published by
   7 * the Free Software Foundation.
   8 *
   9 */
  10
  11
  12#ifndef CNIC_H
  13#define CNIC_H
  14
  15#define HC_INDEX_ISCSI_EQ_CONS                  6
  16
  17#define HC_INDEX_FCOE_EQ_CONS                   3
  18
  19#define HC_SP_INDEX_ETH_ISCSI_CQ_CONS           5
  20#define HC_SP_INDEX_ETH_ISCSI_RX_CQ_CONS        1
  21
  22#define KWQ_PAGE_CNT    4
  23#define KCQ_PAGE_CNT    16
  24
  25#define KWQ_CID                 24
  26#define KCQ_CID                 25
  27
  28/*
  29 *      krnlq_context definition
  30 */
  31#define L5_KRNLQ_FLAGS  0x00000000
  32#define L5_KRNLQ_SIZE   0x00000000
  33#define L5_KRNLQ_TYPE   0x00000000
  34#define KRNLQ_FLAGS_PG_SZ                                       (0xf<<0)
  35#define KRNLQ_FLAGS_PG_SZ_256                                   (0<<0)
  36#define KRNLQ_FLAGS_PG_SZ_512                                   (1<<0)
  37#define KRNLQ_FLAGS_PG_SZ_1K                                    (2<<0)
  38#define KRNLQ_FLAGS_PG_SZ_2K                                    (3<<0)
  39#define KRNLQ_FLAGS_PG_SZ_4K                                    (4<<0)
  40#define KRNLQ_FLAGS_PG_SZ_8K                                    (5<<0)
  41#define KRNLQ_FLAGS_PG_SZ_16K                                   (6<<0)
  42#define KRNLQ_FLAGS_PG_SZ_32K                                   (7<<0)
  43#define KRNLQ_FLAGS_PG_SZ_64K                                   (8<<0)
  44#define KRNLQ_FLAGS_PG_SZ_128K                                  (9<<0)
  45#define KRNLQ_FLAGS_PG_SZ_256K                                  (10<<0)
  46#define KRNLQ_FLAGS_PG_SZ_512K                                  (11<<0)
  47#define KRNLQ_FLAGS_PG_SZ_1M                                    (12<<0)
  48#define KRNLQ_FLAGS_PG_SZ_2M                                    (13<<0)
  49#define KRNLQ_FLAGS_QE_SELF_SEQ                                 (1<<15)
  50#define KRNLQ_SIZE_TYPE_SIZE    ((((0x28 + 0x1f) & ~0x1f) / 0x20) << 16)
  51#define KRNLQ_TYPE_TYPE                                         (0xf<<28)
  52#define KRNLQ_TYPE_TYPE_EMPTY                                   (0<<28)
  53#define KRNLQ_TYPE_TYPE_KRNLQ                                   (6<<28)
  54
  55#define L5_KRNLQ_HOST_QIDX              0x00000004
  56#define L5_KRNLQ_HOST_FW_QIDX           0x00000008
  57#define L5_KRNLQ_NX_QE_SELF_SEQ         0x0000000c
  58#define L5_KRNLQ_QE_SELF_SEQ_MAX        0x0000000c
  59#define L5_KRNLQ_NX_QE_HADDR_HI         0x00000010
  60#define L5_KRNLQ_NX_QE_HADDR_LO         0x00000014
  61#define L5_KRNLQ_PGTBL_PGIDX            0x00000018
  62#define L5_KRNLQ_NX_PG_QIDX             0x00000018
  63#define L5_KRNLQ_PGTBL_NPAGES           0x0000001c
  64#define L5_KRNLQ_QIDX_INCR              0x0000001c
  65#define L5_KRNLQ_PGTBL_HADDR_HI         0x00000020
  66#define L5_KRNLQ_PGTBL_HADDR_LO         0x00000024
  67
  68#define BNX2_PG_CTX_MAP                 0x1a0034
  69#define BNX2_ISCSI_CTX_MAP              0x1a0074
  70
  71struct cnic_redirect_entry {
  72        struct dst_entry *old_dst;
  73        struct dst_entry *new_dst;
  74};
  75
  76#define MAX_COMPLETED_KCQE      64
  77
  78#define MAX_CNIC_L5_CONTEXT     256
  79
  80#define MAX_CM_SK_TBL_SZ        MAX_CNIC_L5_CONTEXT
  81
  82#define MAX_ISCSI_TBL_SZ        256
  83
  84#define CNIC_LOCAL_PORT_MIN     60000
  85#define CNIC_LOCAL_PORT_MAX     61024
  86#define CNIC_LOCAL_PORT_RANGE   (CNIC_LOCAL_PORT_MAX - CNIC_LOCAL_PORT_MIN)
  87
  88#define KWQE_CNT (BCM_PAGE_SIZE / sizeof(struct kwqe))
  89#define KCQE_CNT (BCM_PAGE_SIZE / sizeof(struct kcqe))
  90#define MAX_KWQE_CNT (KWQE_CNT - 1)
  91#define MAX_KCQE_CNT (KCQE_CNT - 1)
  92
  93#define MAX_KWQ_IDX     ((KWQ_PAGE_CNT * KWQE_CNT) - 1)
  94#define MAX_KCQ_IDX     ((KCQ_PAGE_CNT * KCQE_CNT) - 1)
  95
  96#define KWQ_PG(x) (((x) & ~MAX_KWQE_CNT) >> (BCM_PAGE_BITS - 5))
  97#define KWQ_IDX(x) ((x) & MAX_KWQE_CNT)
  98
  99#define KCQ_PG(x) (((x) & ~MAX_KCQE_CNT) >> (BCM_PAGE_BITS - 5))
 100#define KCQ_IDX(x) ((x) & MAX_KCQE_CNT)
 101
 102#define BNX2X_NEXT_KCQE(x) (((x) & (MAX_KCQE_CNT - 1)) ==               \
 103                (MAX_KCQE_CNT - 1)) ?                                   \
 104                (x) + 2 : (x) + 1
 105
 106#define BNX2X_KWQ_DATA_PG(cp, x) ((x) / (cp)->kwq_16_data_pp)
 107#define BNX2X_KWQ_DATA_IDX(cp, x) ((x) % (cp)->kwq_16_data_pp)
 108#define BNX2X_KWQ_DATA(cp, x)                                           \
 109        &(cp)->kwq_16_data[BNX2X_KWQ_DATA_PG(cp, x)][BNX2X_KWQ_DATA_IDX(cp, x)]
 110
 111#define DEF_IPID_START          0x8000
 112
 113#define DEF_KA_TIMEOUT          10000
 114#define DEF_KA_INTERVAL         300000
 115#define DEF_KA_MAX_PROBE_COUNT  3
 116#define DEF_TOS                 0
 117#define DEF_TTL                 0xfe
 118#define DEF_SND_SEQ_SCALE       0
 119#define DEF_RCV_BUF             0xffff
 120#define DEF_SND_BUF             0xffff
 121#define DEF_SEED                0
 122#define DEF_MAX_RT_TIME         500
 123#define DEF_MAX_DA_COUNT        2
 124#define DEF_SWS_TIMER           1000
 125#define DEF_MAX_CWND            0xffff
 126
 127struct cnic_ctx {
 128        u32             cid;
 129        void            *ctx;
 130        dma_addr_t      mapping;
 131};
 132
 133#define BNX2_MAX_CID            0x2000
 134
 135struct cnic_dma {
 136        int             num_pages;
 137        void            **pg_arr;
 138        dma_addr_t      *pg_map_arr;
 139        int             pgtbl_size;
 140        u32             *pgtbl;
 141        dma_addr_t      pgtbl_map;
 142};
 143
 144struct cnic_id_tbl {
 145        spinlock_t      lock;
 146        u32             start;
 147        u32             max;
 148        u32             next;
 149        unsigned long   *table;
 150};
 151
 152#define CNIC_KWQ16_DATA_SIZE    128
 153
 154struct kwqe_16_data {
 155        u8      data[CNIC_KWQ16_DATA_SIZE];
 156};
 157
 158struct cnic_iscsi {
 159        struct cnic_dma         task_array_info;
 160        struct cnic_dma         r2tq_info;
 161        struct cnic_dma         hq_info;
 162};
 163
 164struct cnic_context {
 165        u32                     cid;
 166        struct kwqe_16_data     *kwqe_data;
 167        dma_addr_t              kwqe_data_mapping;
 168        wait_queue_head_t       waitq;
 169        int                     wait_cond;
 170        unsigned long           timestamp;
 171        unsigned long           ctx_flags;
 172#define CTX_FL_OFFLD_START      0
 173#define CTX_FL_DELETE_WAIT      1
 174        u8                      ulp_proto_id;
 175        union {
 176                struct cnic_iscsi       *iscsi;
 177        } proto;
 178};
 179
 180struct kcq_info {
 181        struct cnic_dma dma;
 182        struct kcqe     **kcq;
 183
 184        u16             *hw_prod_idx_ptr;
 185        u16             sw_prod_idx;
 186        u16             *status_idx_ptr;
 187        u32             io_addr;
 188};
 189
 190struct iro {
 191        u32 base;
 192        u16 m1;
 193        u16 m2;
 194        u16 m3;
 195        u16 size;
 196};
 197
 198struct cnic_uio_dev {
 199        struct uio_info         cnic_uinfo;
 200        u32                     uio_dev;
 201
 202        int                     l2_ring_size;
 203        void                    *l2_ring;
 204        dma_addr_t              l2_ring_map;
 205
 206        int                     l2_buf_size;
 207        void                    *l2_buf;
 208        dma_addr_t              l2_buf_map;
 209
 210        struct cnic_dev         *dev;
 211        struct pci_dev          *pdev;
 212        struct list_head        list;
 213};
 214
 215struct cnic_local {
 216
 217        spinlock_t cnic_ulp_lock;
 218        void *ulp_handle[MAX_CNIC_ULP_TYPE];
 219        unsigned long ulp_flags[MAX_CNIC_ULP_TYPE];
 220#define ULP_F_INIT      0
 221#define ULP_F_START     1
 222#define ULP_F_CALL_PENDING      2
 223        struct cnic_ulp_ops *ulp_ops[MAX_CNIC_ULP_TYPE];
 224
 225        unsigned long cnic_local_flags;
 226#define CNIC_LCL_FL_KWQ_INIT            0x0
 227#define CNIC_LCL_FL_L2_WAIT             0x1
 228#define CNIC_LCL_FL_RINGS_INITED        0x2
 229
 230        struct cnic_dev *dev;
 231
 232        struct cnic_eth_dev *ethdev;
 233
 234        struct cnic_uio_dev *udev;
 235
 236        int             l2_rx_ring_size;
 237        int             l2_single_buf_size;
 238
 239        u16             *rx_cons_ptr;
 240        u16             *tx_cons_ptr;
 241        u16             rx_cons;
 242        u16             tx_cons;
 243
 244        struct iro              *iro_arr;
 245#define IRO (((struct cnic_local *) dev->cnic_priv)->iro_arr)
 246
 247        struct cnic_dma         kwq_info;
 248        struct kwqe             **kwq;
 249
 250        struct cnic_dma         kwq_16_data_info;
 251
 252        u16             max_kwq_idx;
 253
 254        u16             kwq_prod_idx;
 255        u32             kwq_io_addr;
 256
 257        u16             *kwq_con_idx_ptr;
 258        u16             kwq_con_idx;
 259
 260        struct kcq_info kcq1;
 261        struct kcq_info kcq2;
 262
 263        union {
 264                void                            *gen;
 265                struct status_block_msix        *bnx2;
 266                struct host_hc_status_block_e1x *bnx2x_e1x;
 267                /* index values - which counter to update */
 268                #define SM_RX_ID                0
 269                #define SM_TX_ID                1
 270        } status_blk;
 271
 272        struct host_sp_status_block     *bnx2x_def_status_blk;
 273
 274        u32                             status_blk_num;
 275        u32                             bnx2x_igu_sb_id;
 276        u32                             int_num;
 277        u32                             last_status_idx;
 278        struct tasklet_struct           cnic_irq_task;
 279
 280        struct kcqe             *completed_kcq[MAX_COMPLETED_KCQE];
 281
 282        struct cnic_sock        *csk_tbl;
 283        struct cnic_id_tbl      csk_port_tbl;
 284
 285        struct cnic_dma         conn_buf_info;
 286        struct cnic_dma         gbl_buf_info;
 287
 288        struct cnic_iscsi       *iscsi_tbl;
 289        struct cnic_context     *ctx_tbl;
 290        struct cnic_id_tbl      cid_tbl;
 291        atomic_t                iscsi_conn;
 292        u32                     iscsi_start_cid;
 293
 294        u32                     fcoe_init_cid;
 295        u32                     fcoe_start_cid;
 296        struct cnic_id_tbl      fcoe_cid_tbl;
 297
 298        u32                     max_cid_space;
 299
 300        /* per connection parameters */
 301        int                     num_iscsi_tasks;
 302        int                     num_ccells;
 303        int                     task_array_size;
 304        int                     r2tq_size;
 305        int                     hq_size;
 306        int                     num_cqs;
 307
 308        struct delayed_work     delete_task;
 309
 310        struct cnic_ctx         *ctx_arr;
 311        int                     ctx_blks;
 312        int                     ctx_blk_size;
 313        unsigned long           ctx_align;
 314        int                     cids_per_blk;
 315
 316        u32                     chip_id;
 317        int                     func;
 318        u32                     pfid;
 319        u32                     shmem_base;
 320
 321        struct cnic_ops         *cnic_ops;
 322        int                     (*start_hw)(struct cnic_dev *);
 323        void                    (*stop_hw)(struct cnic_dev *);
 324        void                    (*setup_pgtbl)(struct cnic_dev *,
 325                                               struct cnic_dma *);
 326        int                     (*alloc_resc)(struct cnic_dev *);
 327        void                    (*free_resc)(struct cnic_dev *);
 328        int                     (*start_cm)(struct cnic_dev *);
 329        void                    (*stop_cm)(struct cnic_dev *);
 330        void                    (*enable_int)(struct cnic_dev *);
 331        void                    (*disable_int_sync)(struct cnic_dev *);
 332        void                    (*ack_int)(struct cnic_dev *);
 333        void                    (*close_conn)(struct cnic_sock *, u32 opcode);
 334        u16                     (*next_idx)(u16);
 335        u16                     (*hw_idx)(u16);
 336};
 337
 338struct bnx2x_bd_chain_next {
 339        u32     addr_lo;
 340        u32     addr_hi;
 341        u8      reserved[8];
 342};
 343
 344#define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T       (1)
 345
 346#define ISCSI_RAMROD_CMD_ID_UPDATE_CONN         (ISCSI_KCQE_OPCODE_UPDATE_CONN)
 347#define ISCSI_RAMROD_CMD_ID_INIT                (ISCSI_KCQE_OPCODE_INIT)
 348
 349#define CDU_REGION_NUMBER_XCM_AG 2
 350#define CDU_REGION_NUMBER_UCM_AG 4
 351
 352#define CDU_VALID_DATA(_cid, _region, _type)    \
 353        (((_cid) << 8) | (((_region)&0xf)<<4) | (((_type)&0xf)))
 354
 355#define CDU_CRC8(_cid, _region, _type)  \
 356        (calc_crc8(CDU_VALID_DATA(_cid, _region, _type), 0xff))
 357
 358#define CDU_RSRVD_VALUE_TYPE_A(_cid, _region, _type)    \
 359        (0x80 | ((CDU_CRC8(_cid, _region, _type)) & 0x7f))
 360
 361#define BNX2X_CONTEXT_MEM_SIZE          1024
 362#define BNX2X_FCOE_CID                  16
 363
 364#define BNX2X_ISCSI_START_CID           18
 365#define BNX2X_ISCSI_NUM_CONNECTIONS     128
 366#define BNX2X_ISCSI_TASK_CONTEXT_SIZE   128
 367#define BNX2X_ISCSI_MAX_PENDING_R2TS    4
 368#define BNX2X_ISCSI_R2TQE_SIZE          8
 369#define BNX2X_ISCSI_HQ_BD_SIZE          64
 370#define BNX2X_ISCSI_CONN_BUF_SIZE       64
 371#define BNX2X_ISCSI_GLB_BUF_SIZE        64
 372#define BNX2X_ISCSI_PBL_NOT_CACHED      0xff
 373#define BNX2X_ISCSI_PDU_HEADER_NOT_CACHED       0xff
 374
 375#define BNX2X_FCOE_NUM_CONNECTIONS      128
 376
 377#define BNX2X_FCOE_L5_CID_BASE          MAX_ISCSI_TBL_SZ
 378
 379#define BNX2X_CHIP_NUM_57710            0x164e
 380#define BNX2X_CHIP_NUM_57711            0x164f
 381#define BNX2X_CHIP_NUM_57711E           0x1650
 382#define BNX2X_CHIP_NUM_57712            0x1662
 383#define BNX2X_CHIP_NUM_57712E           0x1663
 384#define BNX2X_CHIP_NUM_57713            0x1651
 385#define BNX2X_CHIP_NUM_57713E           0x1652
 386
 387#define BNX2X_CHIP_NUM(x)               (x >> 16)
 388#define BNX2X_CHIP_IS_57710(x)          \
 389        (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57710)
 390#define BNX2X_CHIP_IS_57711(x)          \
 391        (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57711)
 392#define BNX2X_CHIP_IS_57711E(x)         \
 393        (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57711E)
 394#define BNX2X_CHIP_IS_E1H(x)            \
 395        (BNX2X_CHIP_IS_57711(x) || BNX2X_CHIP_IS_57711E(x))
 396#define BNX2X_CHIP_IS_57712(x)          \
 397        (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57712)
 398#define BNX2X_CHIP_IS_57712E(x)         \
 399        (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57712E)
 400#define BNX2X_CHIP_IS_57713(x)          \
 401        (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57713)
 402#define BNX2X_CHIP_IS_57713E(x)         \
 403        (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57713E)
 404#define BNX2X_CHIP_IS_E2(x)             \
 405        (BNX2X_CHIP_IS_57712(x) || BNX2X_CHIP_IS_57712E(x) || \
 406         BNX2X_CHIP_IS_57713(x) || BNX2X_CHIP_IS_57713E(x))
 407
 408#define IS_E1H_OFFSET                   BNX2X_CHIP_IS_E1H(cp->chip_id)
 409
 410#define BNX2X_RX_DESC_CNT               (BCM_PAGE_SIZE / sizeof(struct eth_rx_bd))
 411#define BNX2X_MAX_RX_DESC_CNT           (BNX2X_RX_DESC_CNT - 2)
 412#define BNX2X_RCQ_DESC_CNT              (BCM_PAGE_SIZE / sizeof(union eth_rx_cqe))
 413#define BNX2X_MAX_RCQ_DESC_CNT          (BNX2X_RCQ_DESC_CNT - 1)
 414
 415#define BNX2X_NEXT_RCQE(x) (((x) & BNX2X_MAX_RCQ_DESC_CNT) ==           \
 416                (BNX2X_MAX_RCQ_DESC_CNT - 1)) ?                         \
 417                ((x) + 2) : ((x) + 1)
 418
 419#define BNX2X_DEF_SB_ID                 HC_SP_SB_ID
 420
 421#define BNX2X_SHMEM_MF_BLK_OFFSET       0x7e4
 422
 423#define BNX2X_SHMEM_ADDR(base, field)   (base + \
 424                                         offsetof(struct shmem_region, field))
 425
 426#define BNX2X_SHMEM2_ADDR(base, field)  (base + \
 427                                         offsetof(struct shmem2_region, field))
 428
 429#define BNX2X_SHMEM2_HAS(base, field)                           \
 430                ((base) &&                                      \
 431                 (CNIC_RD(dev, BNX2X_SHMEM2_ADDR(base, size)) > \
 432                  offsetof(struct shmem2_region, field)))
 433
 434#define BNX2X_MF_CFG_ADDR(base, field)                          \
 435                        ((base) + offsetof(struct mf_cfg, field))
 436
 437#ifndef ETH_MAX_RX_CLIENTS_E2
 438#define ETH_MAX_RX_CLIENTS_E2           ETH_MAX_RX_CLIENTS_E1H
 439#endif
 440
 441#define CNIC_PORT(cp)                   ((cp)->pfid & 1)
 442#define CNIC_FUNC(cp)                   ((cp)->func)
 443#define CNIC_PATH(cp)                   (!BNX2X_CHIP_IS_E2(cp->chip_id) ? 0 :\
 444                                         (CNIC_FUNC(cp) & 1))
 445#define CNIC_E1HVN(cp)                  ((cp)->pfid >> 1)
 446
 447#define BNX2X_HW_CID(cp, x)             ((CNIC_PORT(cp) << 23) | \
 448                                         (CNIC_E1HVN(cp) << 17) | (x))
 449
 450#define BNX2X_SW_CID(x)                 (x & 0x1ffff)
 451
 452#define BNX2X_CL_QZONE_ID(cp, cli)                                      \
 453                (cli + (CNIC_PORT(cp) * (BNX2X_CHIP_IS_E2(cp->chip_id) ?\
 454                                        ETH_MAX_RX_CLIENTS_E2 :         \
 455                                        ETH_MAX_RX_CLIENTS_E1H)))
 456
 457#define TCP_TSTORM_OOO_DROP_AND_PROC_ACK        (0<<4)
 458#endif
 459
 460