drivers/net/cnic.h

   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
  71 struct 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
 127 struct cnic_ctx {
 128         u32             cid;
 129         void            *ctx;
 130         dma_addr_t      mapping;
 131 };
 132
 133 #define BNX2_MAX_CID            0x2000
 134
 135 struct 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
 144 struct 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
 154 struct kwqe_16_data {
 155         u8      data[CNIC_KWQ16_DATA_SIZE];
 156 };
 157
 158 struct cnic_iscsi {
 159         struct cnic_dma         task_array_info;
 160         struct cnic_dma         r2tq_info;
 161         struct cnic_dma         hq_info;
 162 };
 163
 164 struct 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
 180 struct 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
 190 struct iro {
 191         u32 base;
 192         u16 m1;
 193         u16 m2;
 194         u16 m3;
 195         u16 size;
 196 };
 197
 198 struct 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
 215 struct 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 __rcu *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 #define CNIC_LCL_FL_STOP_ISCSI          0x4
 230
 231         struct cnic_dev *dev;
 232
 233         struct cnic_eth_dev *ethdev;
 234
 235         struct cnic_uio_dev *udev;
 236
 237         int             l2_rx_ring_size;
 238         int             l2_single_buf_size;
 239
 240         u16             *rx_cons_ptr;
 241         u16             *tx_cons_ptr;
 242         u16             rx_cons;
 243         u16             tx_cons;
 244
 245         struct iro              *iro_arr;
 246 #define IRO (((struct cnic_local *) dev->cnic_priv)->iro_arr)
 247
 248         struct cnic_dma         kwq_info;
 249         struct kwqe             **kwq;
 250
 251         struct cnic_dma         kwq_16_data_info;
 252
 253         u16             max_kwq_idx;
 254
 255         u16             kwq_prod_idx;
 256         u32             kwq_io_addr;
 257
 258         u16             *kwq_con_idx_ptr;
 259         u16             kwq_con_idx;
 260
 261         struct kcq_info kcq1;
 262         struct kcq_info kcq2;
 263
 264         union {
 265                 void                            *gen;
 266                 struct status_block_msix        *bnx2;
 267                 struct host_hc_status_block_e1x *bnx2x_e1x;
 268                 /* index values - which counter to update */
 269                 #define SM_RX_ID                0
 270                 #define SM_TX_ID                1
 271         } status_blk;
 272
 273         struct host_sp_status_block     *bnx2x_def_status_blk;
 274
 275         u32                             status_blk_num;
 276         u32                             bnx2x_igu_sb_id;
 277         u32                             int_num;
 278         u32                             last_status_idx;
 279         struct tasklet_struct           cnic_irq_task;
 280
 281         struct kcqe             *completed_kcq[MAX_COMPLETED_KCQE];
 282
 283         struct cnic_sock        *csk_tbl;
 284         struct cnic_id_tbl      csk_port_tbl;
 285
 286         struct cnic_dma         conn_buf_info;
 287         struct cnic_dma         gbl_buf_info;
 288
 289         struct cnic_iscsi       *iscsi_tbl;
 290         struct cnic_context     *ctx_tbl;
 291         struct cnic_id_tbl      cid_tbl;
 292         atomic_t                iscsi_conn;
 293         u32                     iscsi_start_cid;
 294
 295         u32                     fcoe_init_cid;
 296         u32                     fcoe_start_cid;
 297         struct cnic_id_tbl      fcoe_cid_tbl;
 298
 299         u32                     max_cid_space;
 300
 301         /* per connection parameters */
 302         int                     num_iscsi_tasks;
 303         int                     num_ccells;
 304         int                     task_array_size;
 305         int                     r2tq_size;
 306         int                     hq_size;
 307         int                     num_cqs;
 308
 309         struct delayed_work     delete_task;
 310
 311         struct cnic_ctx         *ctx_arr;
 312         int                     ctx_blks;
 313         int                     ctx_blk_size;
 314         unsigned long           ctx_align;
 315         int                     cids_per_blk;
 316
 317         u32                     chip_id;
 318         int                     func;
 319         u32                     pfid;
 320         u32                     shmem_base;
 321
 322         struct cnic_ops         *cnic_ops;
 323         int                     (*start_hw)(struct cnic_dev *);
 324         void                    (*stop_hw)(struct cnic_dev *);
 325         void                    (*setup_pgtbl)(struct cnic_dev *,
 326                                                struct cnic_dma *);
 327         int                     (*alloc_resc)(struct cnic_dev *);
 328         void                    (*free_resc)(struct cnic_dev *);
 329         int                     (*start_cm)(struct cnic_dev *);
 330         void                    (*stop_cm)(struct cnic_dev *);
 331         void                    (*enable_int)(struct cnic_dev *);
 332         void                    (*disable_int_sync)(struct cnic_dev *);
 333         void                    (*ack_int)(struct cnic_dev *);
 334         void                    (*close_conn)(struct cnic_sock *, u32 opcode);
 335         u16                     (*next_idx)(u16);
 336         u16                     (*hw_idx)(u16);
 337 };
 338
 339 struct bnx2x_bd_chain_next {
 340         u32     addr_lo;
 341         u32     addr_hi;
 342         u8      reserved[8];
 343 };
 344
 345 #define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T       (1)
 346
 347 #define ISCSI_RAMROD_CMD_ID_UPDATE_CONN         (ISCSI_KCQE_OPCODE_UPDATE_CONN)
 348 #define ISCSI_RAMROD_CMD_ID_INIT                (ISCSI_KCQE_OPCODE_INIT)
 349
 350 #define CDU_REGION_NUMBER_XCM_AG 2
 351 #define CDU_REGION_NUMBER_UCM_AG 4
 352
 353 #define CDU_VALID_DATA(_cid, _region, _type)    \
 354         (((_cid) << 8) | (((_region)&0xf)<<4) | (((_type)&0xf)))
 355
 356 #define CDU_CRC8(_cid, _region, _type)  \
 357         (calc_crc8(CDU_VALID_DATA(_cid, _region, _type), 0xff))
 358
 359 #define CDU_RSRVD_VALUE_TYPE_A(_cid, _region, _type)    \
 360         (0x80 | ((CDU_CRC8(_cid, _region, _type)) & 0x7f))
 361
 362 #define BNX2X_CONTEXT_MEM_SIZE          1024
 363 #define BNX2X_FCOE_CID                  16
 364
 365 #define BNX2X_ISCSI_START_CID           18
 366 #define BNX2X_ISCSI_NUM_CONNECTIONS     128
 367 #define BNX2X_ISCSI_TASK_CONTEXT_SIZE   128
 368 #define BNX2X_ISCSI_MAX_PENDING_R2TS    4
 369 #define BNX2X_ISCSI_R2TQE_SIZE          8
 370 #define BNX2X_ISCSI_HQ_BD_SIZE          64
 371 #define BNX2X_ISCSI_CONN_BUF_SIZE       64
 372 #define BNX2X_ISCSI_GLB_BUF_SIZE        64
 373 #define BNX2X_ISCSI_PBL_NOT_CACHED      0xff
 374 #define BNX2X_ISCSI_PDU_HEADER_NOT_CACHED       0xff
 375
 376 #define BNX2X_FCOE_NUM_CONNECTIONS      128
 377
 378 #define BNX2X_FCOE_L5_CID_BASE          MAX_ISCSI_TBL_SZ
 379
 380 #define BNX2X_CHIP_NUM_57710            0x164e
 381 #define BNX2X_CHIP_NUM_57711            0x164f
 382 #define BNX2X_CHIP_NUM_57711E           0x1650
 383 #define BNX2X_CHIP_NUM_57712            0x1662
 384 #define BNX2X_CHIP_NUM_57712E           0x1663
 385 #define BNX2X_CHIP_NUM_57713            0x1651
 386 #define BNX2X_CHIP_NUM_57713E           0x1652
 387
 388 #define BNX2X_CHIP_NUM(x)               (x >> 16)
 389 #define BNX2X_CHIP_IS_57710(x)          \
 390         (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57710)
 391 #define BNX2X_CHIP_IS_57711(x)          \
 392         (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57711)
 393 #define BNX2X_CHIP_IS_57711E(x)         \
 394         (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57711E)
 395 #define BNX2X_CHIP_IS_E1H(x)            \
 396         (BNX2X_CHIP_IS_57711(x) || BNX2X_CHIP_IS_57711E(x))
 397 #define BNX2X_CHIP_IS_57712(x)          \
 398         (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57712)
 399 #define BNX2X_CHIP_IS_57712E(x)         \
 400         (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57712E)
 401 #define BNX2X_CHIP_IS_57713(x)          \
 402         (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57713)
 403 #define BNX2X_CHIP_IS_57713E(x)         \
 404         (BNX2X_CHIP_NUM(x) == BNX2X_CHIP_NUM_57713E)
 405 #define BNX2X_CHIP_IS_E2(x)             \
 406         (BNX2X_CHIP_IS_57712(x) || BNX2X_CHIP_IS_57712E(x) || \
 407          BNX2X_CHIP_IS_57713(x) || BNX2X_CHIP_IS_57713E(x))
 408
 409 #define IS_E1H_OFFSET                   BNX2X_CHIP_IS_E1H(cp->chip_id)
 410
 411 #define BNX2X_RX_DESC_CNT               (BCM_PAGE_SIZE / sizeof(struct eth_rx_bd))
 412 #define BNX2X_MAX_RX_DESC_CNT           (BNX2X_RX_DESC_CNT - 2)
 413 #define BNX2X_RCQ_DESC_CNT              (BCM_PAGE_SIZE / sizeof(union eth_rx_cqe))
 414 #define BNX2X_MAX_RCQ_DESC_CNT          (BNX2X_RCQ_DESC_CNT - 1)
 415
 416 #define BNX2X_NEXT_RCQE(x) (((x) & BNX2X_MAX_RCQ_DESC_CNT) ==           \
 417                 (BNX2X_MAX_RCQ_DESC_CNT - 1)) ?                         \
 418                 ((x) + 2) : ((x) + 1)
 419
 420 #define BNX2X_DEF_SB_ID                 HC_SP_SB_ID
 421
 422 #define BNX2X_SHMEM_MF_BLK_OFFSET       0x7e4
 423
 424 #define BNX2X_SHMEM_ADDR(base, field)   (base + \
 425                                          offsetof(struct shmem_region, field))
 426
 427 #define BNX2X_SHMEM2_ADDR(base, field)  (base + \
 428                                          offsetof(struct shmem2_region, field))
 429
 430 #define BNX2X_SHMEM2_HAS(base, field)                           \
 431                 ((base) &&                                      \
 432                  (CNIC_RD(dev, BNX2X_SHMEM2_ADDR(base, size)) > \
 433                   offsetof(struct shmem2_region, field)))
 434
 435 #define BNX2X_MF_CFG_ADDR(base, field)                          \
 436                         ((base) + offsetof(struct mf_cfg, field))
 437
 438 #ifndef ETH_MAX_RX_CLIENTS_E2
 439 #define ETH_MAX_RX_CLIENTS_E2           ETH_MAX_RX_CLIENTS_E1H
 440 #endif
 441
 442 #define CNIC_PORT(cp)                   ((cp)->pfid & 1)
 443 #define CNIC_FUNC(cp)                   ((cp)->func)
 444 #define CNIC_PATH(cp)                   (!BNX2X_CHIP_IS_E2(cp->chip_id) ? 0 :\
 445                                          (CNIC_FUNC(cp) & 1))
 446 #define CNIC_E1HVN(cp)                  ((cp)->pfid >> 1)
 447
 448 #define BNX2X_HW_CID(cp, x)             ((CNIC_PORT(cp) << 23) | \
 449                                          (CNIC_E1HVN(cp) << 17) | (x))
 450
 451 #define BNX2X_SW_CID(x)                 (x & 0x1ffff)
 452
 453 #define BNX2X_CL_QZONE_ID(cp, cli)                                      \
 454                 (cli + (CNIC_PORT(cp) * (BNX2X_CHIP_IS_E2(cp->chip_id) ?\
 455                                         ETH_MAX_RX_CLIENTS_E2 :         \
 456                                         ETH_MAX_RX_CLIENTS_E1H)))
 457
 458 #define TCP_TSTORM_OOO_DROP_AND_PROC_ACK        (0<<4)
 459 #endif
 460