drivers/net/ethernet/broadcom/cnic.h

   1 /* cnic.h: Broadcom CNIC core network driver.
   2  *
   3  * Copyright (c) 2006-2013 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 #define MAX_COMPLETED_KCQE      64
  72
  73 #define MAX_CNIC_L5_CONTEXT     256
  74
  75 #define MAX_CM_SK_TBL_SZ        MAX_CNIC_L5_CONTEXT
  76
  77 #define MAX_ISCSI_TBL_SZ        256
  78
  79 #define CNIC_LOCAL_PORT_MIN     60000
  80 #define CNIC_LOCAL_PORT_MAX     61024
  81 #define CNIC_LOCAL_PORT_RANGE   (CNIC_LOCAL_PORT_MAX - CNIC_LOCAL_PORT_MIN)
  82
  83 #define KWQE_CNT (BNX2_PAGE_SIZE / sizeof(struct kwqe))
  84 #define KCQE_CNT (BNX2_PAGE_SIZE / sizeof(struct kcqe))
  85 #define MAX_KWQE_CNT (KWQE_CNT - 1)
  86 #define MAX_KCQE_CNT (KCQE_CNT - 1)
  87
  88 #define MAX_KWQ_IDX     ((KWQ_PAGE_CNT * KWQE_CNT) - 1)
  89 #define MAX_KCQ_IDX     ((KCQ_PAGE_CNT * KCQE_CNT) - 1)
  90
  91 #define KWQ_PG(x) (((x) & ~MAX_KWQE_CNT) >> (BNX2_PAGE_BITS - 5))
  92 #define KWQ_IDX(x) ((x) & MAX_KWQE_CNT)
  93
  94 #define KCQ_PG(x) (((x) & ~MAX_KCQE_CNT) >> (BNX2_PAGE_BITS - 5))
  95 #define KCQ_IDX(x) ((x) & MAX_KCQE_CNT)
  96
  97 #define BNX2X_NEXT_KCQE(x) (((x) & (MAX_KCQE_CNT - 1)) ==               \
  98                 (MAX_KCQE_CNT - 1)) ?                                   \
  99                 (x) + 2 : (x) + 1
 100
 101 #define BNX2X_KWQ_DATA_PG(cp, x) ((x) / (cp)->kwq_16_data_pp)
 102 #define BNX2X_KWQ_DATA_IDX(cp, x) ((x) % (cp)->kwq_16_data_pp)
 103 #define BNX2X_KWQ_DATA(cp, x)                                           \
 104         &(cp)->kwq_16_data[BNX2X_KWQ_DATA_PG(cp, x)][BNX2X_KWQ_DATA_IDX(cp, x)]
 105
 106 #define DEF_IPID_START          0x8000
 107
 108 #define DEF_KA_TIMEOUT          10000
 109 #define DEF_KA_INTERVAL         300000
 110 #define DEF_KA_MAX_PROBE_COUNT  3
 111 #define DEF_TOS                 0
 112 #define DEF_TTL                 0xfe
 113 #define DEF_SND_SEQ_SCALE       0
 114 #define DEF_RCV_BUF             0xffff
 115 #define DEF_SND_BUF             0xffff
 116 #define DEF_SEED                0
 117 #define DEF_MAX_RT_TIME         500
 118 #define DEF_MAX_DA_COUNT        2
 119 #define DEF_SWS_TIMER           1000
 120 #define DEF_MAX_CWND            0xffff
 121
 122 struct cnic_ctx {
 123         u32             cid;
 124         void            *ctx;
 125         dma_addr_t      mapping;
 126 };
 127
 128 #define BNX2_MAX_CID            0x2000
 129
 130 struct cnic_dma {
 131         int             num_pages;
 132         void            **pg_arr;
 133         dma_addr_t      *pg_map_arr;
 134         int             pgtbl_size;
 135         u32             *pgtbl;
 136         dma_addr_t      pgtbl_map;
 137 };
 138
 139 struct cnic_id_tbl {
 140         spinlock_t      lock;
 141         u32             start;
 142         u32             max;
 143         u32             next;
 144         unsigned long   *table;
 145 };
 146
 147 #define CNIC_KWQ16_DATA_SIZE    128
 148
 149 struct kwqe_16_data {
 150         u8      data[CNIC_KWQ16_DATA_SIZE];
 151 };
 152
 153 struct cnic_iscsi {
 154         struct cnic_dma         task_array_info;
 155         struct cnic_dma         r2tq_info;
 156         struct cnic_dma         hq_info;
 157 };
 158
 159 struct cnic_context {
 160         u32                     cid;
 161         struct kwqe_16_data     *kwqe_data;
 162         dma_addr_t              kwqe_data_mapping;
 163         wait_queue_head_t       waitq;
 164         int                     wait_cond;
 165         unsigned long           timestamp;
 166         unsigned long           ctx_flags;
 167 #define CTX_FL_OFFLD_START      0
 168 #define CTX_FL_DELETE_WAIT      1
 169 #define CTX_FL_CID_ERROR        2
 170         u8                      ulp_proto_id;
 171         union {
 172                 struct cnic_iscsi       *iscsi;
 173         } proto;
 174 };
 175
 176 struct kcq_info {
 177         struct cnic_dma dma;
 178         struct kcqe     **kcq;
 179
 180         u16             *hw_prod_idx_ptr;
 181         u16             sw_prod_idx;
 182         u16             *status_idx_ptr;
 183         u32             io_addr;
 184
 185         u16             (*next_idx)(u16);
 186         u16             (*hw_idx)(u16);
 187 };
 188
 189 #define UIO_USE_TX_DOORBELL 0x017855DB
 190
 191 struct cnic_uio_dev {
 192         struct uio_info         cnic_uinfo;
 193         u32                     uio_dev;
 194
 195         int                     l2_ring_size;
 196         void                    *l2_ring;
 197         dma_addr_t              l2_ring_map;
 198
 199         int                     l2_buf_size;
 200         void                    *l2_buf;
 201         dma_addr_t              l2_buf_map;
 202
 203         struct cnic_dev         *dev;
 204         struct pci_dev          *pdev;
 205         struct list_head        list;
 206 };
 207
 208 struct cnic_local {
 209
 210         spinlock_t cnic_ulp_lock;
 211         void *ulp_handle[MAX_CNIC_ULP_TYPE];
 212         unsigned long ulp_flags[MAX_CNIC_ULP_TYPE];
 213 #define ULP_F_INIT      0
 214 #define ULP_F_START     1
 215 #define ULP_F_CALL_PENDING      2
 216         struct cnic_ulp_ops __rcu *ulp_ops[MAX_CNIC_ULP_TYPE];
 217
 218         unsigned long cnic_local_flags;
 219 #define CNIC_LCL_FL_KWQ_INIT            0x0
 220 #define CNIC_LCL_FL_L2_WAIT             0x1
 221 #define CNIC_LCL_FL_RINGS_INITED        0x2
 222 #define CNIC_LCL_FL_STOP_ISCSI          0x4
 223
 224         struct cnic_dev *dev;
 225
 226         struct cnic_eth_dev *ethdev;
 227
 228         struct cnic_uio_dev *udev;
 229
 230         int             l2_rx_ring_size;
 231         int             l2_single_buf_size;
 232
 233         u16             *rx_cons_ptr;
 234         u16             *tx_cons_ptr;
 235         u16             rx_cons;
 236         u16             tx_cons;
 237
 238         struct cnic_dma         kwq_info;
 239         struct kwqe             **kwq;
 240
 241         struct cnic_dma         kwq_16_data_info;
 242
 243         u16             max_kwq_idx;
 244
 245         u16             kwq_prod_idx;
 246         u32             kwq_io_addr;
 247
 248         u16             *kwq_con_idx_ptr;
 249         u16             kwq_con_idx;
 250
 251         struct kcq_info kcq1;
 252         struct kcq_info kcq2;
 253
 254         union {
 255                 void                            *gen;
 256                 struct status_block_msix        *bnx2;
 257                 struct host_hc_status_block_e1x *bnx2x_e1x;
 258                 /* index values - which counter to update */
 259                 #define SM_RX_ID                0
 260                 #define SM_TX_ID                1
 261         } status_blk;
 262
 263         struct host_sp_status_block     *bnx2x_def_status_blk;
 264
 265         u32                             status_blk_num;
 266         u32                             bnx2x_igu_sb_id;
 267         u32                             int_num;
 268         u32                             last_status_idx;
 269         struct tasklet_struct           cnic_irq_task;
 270
 271         struct kcqe             *completed_kcq[MAX_COMPLETED_KCQE];
 272
 273         struct cnic_sock        *csk_tbl;
 274         struct cnic_id_tbl      csk_port_tbl;
 275
 276         struct cnic_dma         gbl_buf_info;
 277
 278         struct cnic_iscsi       *iscsi_tbl;
 279         struct cnic_context     *ctx_tbl;
 280         struct cnic_id_tbl      cid_tbl;
 281         atomic_t                iscsi_conn;
 282         u32                     iscsi_start_cid;
 283
 284         u32                     fcoe_init_cid;
 285         u32                     fcoe_start_cid;
 286         struct cnic_id_tbl      fcoe_cid_tbl;
 287
 288         u32                     max_cid_space;
 289
 290         /* per connection parameters */
 291         int                     num_iscsi_tasks;
 292         int                     num_ccells;
 293         int                     task_array_size;
 294         int                     r2tq_size;
 295         int                     hq_size;
 296         int                     num_cqs;
 297
 298         struct delayed_work     delete_task;
 299
 300         struct cnic_ctx         *ctx_arr;
 301         int                     ctx_blks;
 302         int                     ctx_blk_size;
 303         unsigned long           ctx_align;
 304         int                     cids_per_blk;
 305
 306         u32                     chip_id;
 307         int                     func;
 308
 309         u32                     shmem_base;
 310
 311         struct cnic_ops         *cnic_ops;
 312         int                     (*start_hw)(struct cnic_dev *);
 313         void                    (*stop_hw)(struct cnic_dev *);
 314         void                    (*setup_pgtbl)(struct cnic_dev *,
 315                                                struct cnic_dma *);
 316         int                     (*alloc_resc)(struct cnic_dev *);
 317         void                    (*free_resc)(struct cnic_dev *);
 318         int                     (*start_cm)(struct cnic_dev *);
 319         void                    (*stop_cm)(struct cnic_dev *);
 320         void                    (*enable_int)(struct cnic_dev *);
 321         void                    (*disable_int_sync)(struct cnic_dev *);
 322         void                    (*ack_int)(struct cnic_dev *);
 323         void                    (*arm_int)(struct cnic_dev *, u32 index);
 324         void                    (*close_conn)(struct cnic_sock *, u32 opcode);
 325 };
 326
 327 struct bnx2x_bd_chain_next {
 328         u32     addr_lo;
 329         u32     addr_hi;
 330         u8      reserved[8];
 331 };
 332
 333 #define ISCSI_DEFAULT_MAX_OUTSTANDING_R2T       (1)
 334
 335 #define ISCSI_RAMROD_CMD_ID_UPDATE_CONN         (ISCSI_KCQE_OPCODE_UPDATE_CONN)
 336 #define ISCSI_RAMROD_CMD_ID_INIT                (ISCSI_KCQE_OPCODE_INIT)
 337
 338 #define CDU_REGION_NUMBER_XCM_AG 2
 339 #define CDU_REGION_NUMBER_UCM_AG 4
 340
 341 #define CDU_VALID_DATA(_cid, _region, _type)    \
 342         (((_cid) << 8) | (((_region)&0xf)<<4) | (((_type)&0xf)))
 343
 344 #define CDU_CRC8(_cid, _region, _type)  \
 345         (calc_crc8(CDU_VALID_DATA(_cid, _region, _type), 0xff))
 346
 347 #define CDU_RSRVD_VALUE_TYPE_A(_cid, _region, _type)    \
 348         (0x80 | ((CDU_CRC8(_cid, _region, _type)) & 0x7f))
 349
 350 #define BNX2X_CONTEXT_MEM_SIZE          1024
 351 #define BNX2X_FCOE_CID                  16
 352
 353 #define BNX2X_ISCSI_START_CID           18
 354 #define BNX2X_ISCSI_NUM_CONNECTIONS     128
 355 #define BNX2X_ISCSI_TASK_CONTEXT_SIZE   128
 356 #define BNX2X_ISCSI_MAX_PENDING_R2TS    4
 357 #define BNX2X_ISCSI_R2TQE_SIZE          8
 358 #define BNX2X_ISCSI_HQ_BD_SIZE          64
 359 #define BNX2X_ISCSI_GLB_BUF_SIZE        64
 360 #define BNX2X_ISCSI_PBL_NOT_CACHED      0xff
 361 #define BNX2X_ISCSI_PDU_HEADER_NOT_CACHED       0xff
 362
 363 #define BNX2X_FCOE_NUM_CONNECTIONS      1024
 364
 365 #define BNX2X_FCOE_L5_CID_BASE          MAX_ISCSI_TBL_SZ
 366
 367 #define BNX2X_CHIP_IS_E2_PLUS(bp) (CHIP_IS_E2(bp) || CHIP_IS_E3(bp))
 368
 369 #define BNX2X_RX_DESC_CNT               (BNX2_PAGE_SIZE / \
 370                                          sizeof(struct eth_rx_bd))
 371 #define BNX2X_MAX_RX_DESC_CNT           (BNX2X_RX_DESC_CNT - 2)
 372 #define BNX2X_RCQ_DESC_CNT              (BNX2_PAGE_SIZE / \
 373                                          sizeof(union eth_rx_cqe))
 374 #define BNX2X_MAX_RCQ_DESC_CNT          (BNX2X_RCQ_DESC_CNT - 1)
 375
 376 #define BNX2X_NEXT_RCQE(x) (((x) & BNX2X_MAX_RCQ_DESC_CNT) ==           \
 377                 (BNX2X_MAX_RCQ_DESC_CNT - 1)) ?                         \
 378                 ((x) + 2) : ((x) + 1)
 379
 380 #define BNX2X_DEF_SB_ID                 HC_SP_SB_ID
 381
 382 #define BNX2X_SHMEM_MF_BLK_OFFSET       0x7e4
 383
 384 #define BNX2X_SHMEM_ADDR(base, field)   (base + \
 385                                          offsetof(struct shmem_region, field))
 386
 387 #define BNX2X_SHMEM2_ADDR(base, field)  (base + \
 388                                          offsetof(struct shmem2_region, field))
 389
 390 #define BNX2X_SHMEM2_HAS(base, field)                           \
 391                 ((base) &&                                      \
 392                  (CNIC_RD(dev, BNX2X_SHMEM2_ADDR(base, size)) > \
 393                   offsetof(struct shmem2_region, field)))
 394
 395 #define BNX2X_MF_CFG_ADDR(base, field)                          \
 396                         ((base) + offsetof(struct mf_cfg, field))
 397
 398 #ifndef ETH_MAX_RX_CLIENTS_E2
 399 #define ETH_MAX_RX_CLIENTS_E2           ETH_MAX_RX_CLIENTS_E1H
 400 #endif
 401
 402 #define CNIC_FUNC(cp)                   ((cp)->func)
 403
 404 #define BNX2X_HW_CID(bp, x)             ((BP_PORT(bp) << 23) | \
 405                                          (BP_VN(bp) << 17) | (x))
 406
 407 #define BNX2X_SW_CID(x)                 (x & 0x1ffff)
 408
 409 #define BNX2X_CL_QZONE_ID(bp, cli)                                      \
 410                 (BNX2X_CHIP_IS_E2_PLUS(bp) ? cli :                      \
 411                  cli + (BP_PORT(bp) * ETH_MAX_RX_CLIENTS_E1H))
 412
 413 #ifndef MAX_STAT_COUNTER_ID
 414 #define MAX_STAT_COUNTER_ID                                             \
 415         (CHIP_IS_E1H(bp) ? MAX_STAT_COUNTER_ID_E1H :                    \
 416          ((BNX2X_CHIP_IS_E2_PLUS(bp)) ? MAX_STAT_COUNTER_ID_E2 :        \
 417           MAX_STAT_COUNTER_ID_E1))
 418 #endif
 419
 420 #define CNIC_SUPPORTS_FCOE(cp)                                          \
 421         (BNX2X_CHIP_IS_E2_PLUS(bp) && !NO_FCOE(bp))
 422
 423 #define CNIC_RAMROD_TMO                 (HZ / 4)
 424
 425 #endif
 426