1 /* cnic.h: Broadcom CNIC core network driver. 2 * 3 * Copyright (c) 2006-2014 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 426 427