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   1 /* cnic.h: Broadcom CNIC core network driver.
   2  *
   3  * Copyright (c) 2006-2009 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 KWQ_PAGE_CNT    4
  16 #define KCQ_PAGE_CNT    16
  17
  18 #define KWQ_CID                 24
  19 #define KCQ_CID                 25
  20
  21 /*
  22  *      krnlq_context definition
  23  */
  24 #define L5_KRNLQ_FLAGS  0x00000000
  25 #define L5_KRNLQ_SIZE   0x00000000
  26 #define L5_KRNLQ_TYPE   0x00000000
  27 #define KRNLQ_FLAGS_PG_SZ                                       (0xf<<0)
  28 #define KRNLQ_FLAGS_PG_SZ_256                                   (0<<0)
  29 #define KRNLQ_FLAGS_PG_SZ_512                                   (1<<0)
  30 #define KRNLQ_FLAGS_PG_SZ_1K                                    (2<<0)
  31 #define KRNLQ_FLAGS_PG_SZ_2K                                    (3<<0)
  32 #define KRNLQ_FLAGS_PG_SZ_4K                                    (4<<0)
  33 #define KRNLQ_FLAGS_PG_SZ_8K                                    (5<<0)
  34 #define KRNLQ_FLAGS_PG_SZ_16K                                   (6<<0)
  35 #define KRNLQ_FLAGS_PG_SZ_32K                                   (7<<0)
  36 #define KRNLQ_FLAGS_PG_SZ_64K                                   (8<<0)
  37 #define KRNLQ_FLAGS_PG_SZ_128K                                  (9<<0)
  38 #define KRNLQ_FLAGS_PG_SZ_256K                                  (10<<0)
  39 #define KRNLQ_FLAGS_PG_SZ_512K                                  (11<<0)
  40 #define KRNLQ_FLAGS_PG_SZ_1M                                    (12<<0)
  41 #define KRNLQ_FLAGS_PG_SZ_2M                                    (13<<0)
  42 #define KRNLQ_FLAGS_QE_SELF_SEQ                                 (1<<15)
  43 #define KRNLQ_SIZE_TYPE_SIZE    ((((0x28 + 0x1f) & ~0x1f) / 0x20) << 16)
  44 #define KRNLQ_TYPE_TYPE                                         (0xf<<28)
  45 #define KRNLQ_TYPE_TYPE_EMPTY                                   (0<<28)
  46 #define KRNLQ_TYPE_TYPE_KRNLQ                                   (6<<28)
  47
  48 #define L5_KRNLQ_HOST_QIDX              0x00000004
  49 #define L5_KRNLQ_HOST_FW_QIDX           0x00000008
  50 #define L5_KRNLQ_NX_QE_SELF_SEQ         0x0000000c
  51 #define L5_KRNLQ_QE_SELF_SEQ_MAX        0x0000000c
  52 #define L5_KRNLQ_NX_QE_HADDR_HI         0x00000010
  53 #define L5_KRNLQ_NX_QE_HADDR_LO         0x00000014
  54 #define L5_KRNLQ_PGTBL_PGIDX            0x00000018
  55 #define L5_KRNLQ_NX_PG_QIDX             0x00000018
  56 #define L5_KRNLQ_PGTBL_NPAGES           0x0000001c
  57 #define L5_KRNLQ_QIDX_INCR              0x0000001c
  58 #define L5_KRNLQ_PGTBL_HADDR_HI         0x00000020
  59 #define L5_KRNLQ_PGTBL_HADDR_LO         0x00000024
  60
  61 #define BNX2_PG_CTX_MAP                 0x1a0034
  62 #define BNX2_ISCSI_CTX_MAP              0x1a0074
  63
  64 struct cnic_redirect_entry {
  65         struct dst_entry *old_dst;
  66         struct dst_entry *new_dst;
  67 };
  68
  69 #define MAX_COMPLETED_KCQE      64
  70
  71 #define MAX_CNIC_L5_CONTEXT     256
  72
  73 #define MAX_CM_SK_TBL_SZ        MAX_CNIC_L5_CONTEXT
  74
  75 #define MAX_ISCSI_TBL_SZ        256
  76
  77 #define CNIC_LOCAL_PORT_MIN     60000
  78 #define CNIC_LOCAL_PORT_MAX     61000
  79 #define CNIC_LOCAL_PORT_RANGE   (CNIC_LOCAL_PORT_MAX - CNIC_LOCAL_PORT_MIN)
  80
  81 #define KWQE_CNT (BCM_PAGE_SIZE / sizeof(struct kwqe))
  82 #define KCQE_CNT (BCM_PAGE_SIZE / sizeof(struct kcqe))
  83 #define MAX_KWQE_CNT (KWQE_CNT - 1)
  84 #define MAX_KCQE_CNT (KCQE_CNT - 1)
  85
  86 #define MAX_KWQ_IDX     ((KWQ_PAGE_CNT * KWQE_CNT) - 1)
  87 #define MAX_KCQ_IDX     ((KCQ_PAGE_CNT * KCQE_CNT) - 1)
  88
  89 #define KWQ_PG(x) (((x) & ~MAX_KWQE_CNT) >> (BCM_PAGE_BITS - 5))
  90 #define KWQ_IDX(x) ((x) & MAX_KWQE_CNT)
  91
  92 #define KCQ_PG(x) (((x) & ~MAX_KCQE_CNT) >> (BCM_PAGE_BITS - 5))
  93 #define KCQ_IDX(x) ((x) & MAX_KCQE_CNT)
  94
  95 #define BNX2X_NEXT_KCQE(x) (((x) & (MAX_KCQE_CNT - 1)) ==               \
  96                 (MAX_KCQE_CNT - 1)) ?                                   \
  97                 (x) + 2 : (x) + 1
  98
  99 #define BNX2X_KWQ_DATA_PG(cp, x) ((x) / (cp)->kwq_16_data_pp)
 100 #define BNX2X_KWQ_DATA_IDX(cp, x) ((x) % (cp)->kwq_16_data_pp)
 101 #define BNX2X_KWQ_DATA(cp, x)                                           \
 102         &(cp)->kwq_16_data[BNX2X_KWQ_DATA_PG(cp, x)][BNX2X_KWQ_DATA_IDX(cp, x)]
 103
 104 #define DEF_IPID_COUNT          0xc001
 105
 106 #define DEF_KA_TIMEOUT          10000
 107 #define DEF_KA_INTERVAL         300000
 108 #define DEF_KA_MAX_PROBE_COUNT  3
 109 #define DEF_TOS                 0
 110 #define DEF_TTL                 0xfe
 111 #define DEF_SND_SEQ_SCALE       0
 112 #define DEF_RCV_BUF             0xffff
 113 #define DEF_SND_BUF             0xffff
 114 #define DEF_SEED                0
 115 #define DEF_MAX_RT_TIME         500
 116 #define DEF_MAX_DA_COUNT        2
 117 #define DEF_SWS_TIMER           1000
 118 #define DEF_MAX_CWND            0xffff
 119
 120 struct cnic_ctx {
 121         u32             cid;
 122         void            *ctx;
 123         dma_addr_t      mapping;
 124 };
 125
 126 #define BNX2_MAX_CID            0x2000
 127
 128 struct cnic_dma {
 129         int             num_pages;
 130         void            **pg_arr;
 131         dma_addr_t      *pg_map_arr;
 132         int             pgtbl_size;
 133         u32             *pgtbl;
 134         dma_addr_t      pgtbl_map;
 135 };
 136
 137 struct cnic_id_tbl {
 138         spinlock_t      lock;
 139         u32             start;
 140         u32             max;
 141         u32             next;
 142         unsigned long   *table;
 143 };
 144
 145 #define CNIC_KWQ16_DATA_SIZE    128
 146
 147 struct kwqe_16_data {
 148         u8      data[CNIC_KWQ16_DATA_SIZE];
 149 };
 150
 151 struct cnic_iscsi {
 152         struct cnic_dma         task_array_info;
 153         struct cnic_dma         r2tq_info;
 154         struct cnic_dma         hq_info;
 155 };
 156
 157 struct cnic_context {
 158         u32                     cid;
 159         struct kwqe_16_data     *kwqe_data;
 160         dma_addr_t              kwqe_data_mapping;
 161         wait_queue_head_t       waitq;
 162         int                     wait_cond;
 163         unsigned long           timestamp;
 164         u32                     ctx_flags;
 165 #define CTX_FL_OFFLD_START      0x00000001
 166         u8                      ulp_proto_id;
 167         union {
 168                 struct cnic_iscsi       *iscsi;
 169         } proto;
 170 };
 171
 172 struct cnic_local {
 173
 174         spinlock_t cnic_ulp_lock;
 175         void *ulp_handle[MAX_CNIC_ULP_TYPE];
 176         unsigned long ulp_flags[MAX_CNIC_ULP_TYPE];
 177 #define ULP_F_INIT      0
 178 #define ULP_F_START     1
 179         struct cnic_ulp_ops *ulp_ops[MAX_CNIC_ULP_TYPE];
 180
 181         /* protected by ulp_lock */
 182         u32 cnic_local_flags;
 183 #define CNIC_LCL_FL_KWQ_INIT    0x00000001
 184
 185         struct cnic_dev *dev;
 186
 187         struct cnic_eth_dev *ethdev;
 188
 189         void            *l2_ring;
 190         dma_addr_t      l2_ring_map;
 191         int             l2_ring_size;
 192         int             l2_rx_ring_size;
 193
 194         void            *l2_buf;
 195         dma_addr_t      l2_buf_map;
 196         int             l2_buf_size;
 197         int             l2_single_buf_size;
 198
 199         u16             *rx_cons_ptr;
 200         u16             *tx_cons_ptr;
 201         u16             rx_cons;
 202         u16             tx_cons;
 203
 204         u32 kwq_cid_addr;
 205         u32 kcq_cid_addr;
 206
 207         struct cnic_dma         kwq_info;
 208         struct kwqe             **kwq;
 209
 210         struct cnic_dma         kwq_16_data_info;
 211
 212         u16             max_kwq_idx;
 213
 214         u16             kwq_prod_idx;
 215         u32             kwq_io_addr;
 216
 217         u16             *kwq_con_idx_ptr;
 218         u16             kwq_con_idx;
 219
 220         struct cnic_dma kcq_info;
 221         struct kcqe     **kcq;
 222
 223         u16             kcq_prod_idx;
 224         u32             kcq_io_addr;
 225
 226         void                            *status_blk;
 227         struct status_block_msix        *bnx2_status_blk;
 228         struct host_status_block        *bnx2x_status_blk;
 229
 230         u32                             status_blk_num;
 231         u32                             int_num;
 232         u32                             last_status_idx;
 233         struct tasklet_struct           cnic_irq_task;
 234
 235         struct kcqe             *completed_kcq[MAX_COMPLETED_KCQE];
 236
 237         struct cnic_sock        *csk_tbl;
 238         struct cnic_id_tbl      csk_port_tbl;
 239
 240         struct cnic_dma         conn_buf_info;
 241         struct cnic_dma         gbl_buf_info;
 242
 243         struct cnic_iscsi       *iscsi_tbl;
 244         struct cnic_context     *ctx_tbl;
 245         struct cnic_id_tbl      cid_tbl;
 246         int                     max_iscsi_conn;
 247         atomic_t                iscsi_conn;
 248
 249         /* per connection parameters */
 250         int                     num_iscsi_tasks;
 251         int                     num_ccells;
 252         int                     task_array_size;
 253         int                     r2tq_size;
 254         int                     hq_size;
 255         int                     num_cqs;
 256
 257         struct cnic_ctx         *ctx_arr;
 258         int                     ctx_blks;
 259         int                     ctx_blk_size;
 260         int                     cids_per_blk;
 261
 262         u32                     chip_id;
 263         int                     func;
 264         u32                     shmem_base;
 265
 266         u32                     uio_dev;
 267         struct uio_info         *cnic_uinfo;
 268
 269         struct cnic_ops         *cnic_ops;
 270         int                     (*start_hw)(struct cnic_dev *);
 271         void                    (*stop_hw)(struct cnic_dev *);
 272         void                    (*setup_pgtbl)(struct cnic_dev *,
 273                                                struct cnic_dma *);
 274         int                     (*alloc_resc)(struct cnic_dev *);
 275         void                    (*free_resc)(struct cnic_dev *);
 276         int                     (*start_cm)(struct cnic_dev *);
 277         void                    (*stop_cm)(struct cnic_dev *);
 278         void                    (*enable_int)(struct cnic_dev *);
 279         void                    (*disable_int_sync)(struct cnic_dev *);
 280         void                    (*ack_int)(struct cnic_dev *);
 281         void                    (*close_conn)(struct cnic_sock *, u32 opcode);
 282         u16                     (*next_idx)(u16);
 283         u16                     (*hw_idx)(u16);
 284 };
 285
 286 struct bnx2x_bd_chain_next {
 287         u32     addr_lo;
 288         u32     addr_hi;
 289         u8      reserved[8];
 290 };
 291
 292 #define ISCSI_RAMROD_CMD_ID_UPDATE_CONN         (ISCSI_KCQE_OPCODE_UPDATE_CONN)
 293 #define ISCSI_RAMROD_CMD_ID_INIT                (ISCSI_KCQE_OPCODE_INIT)
 294
 295 #define CDU_REGION_NUMBER_XCM_AG 2
 296 #define CDU_REGION_NUMBER_UCM_AG 4
 297
 298 #endif
 299