1 /* 2 * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #ifndef MLX4_DEVICE_H 34 #define MLX4_DEVICE_H 35 36 #include <linux/pci.h> 37 #include <linux/completion.h> 38 #include <linux/radix-tree.h> 39 40 #include <asm/atomic.h> 41 42 enum { 43 MLX4_FLAG_MSI_X = 1 << 0, 44 MLX4_FLAG_OLD_PORT_CMDS = 1 << 1, 45 }; 46 47 enum { 48 MLX4_MAX_PORTS = 2 49 }; 50 51 enum { 52 MLX4_BOARD_ID_LEN = 64 53 }; 54 55 enum { 56 MLX4_DEV_CAP_FLAG_RC = 1 << 0, 57 MLX4_DEV_CAP_FLAG_UC = 1 << 1, 58 MLX4_DEV_CAP_FLAG_UD = 1 << 2, 59 MLX4_DEV_CAP_FLAG_SRQ = 1 << 6, 60 MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1 << 7, 61 MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1 << 8, 62 MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1 << 9, 63 MLX4_DEV_CAP_FLAG_DPDP = 1 << 12, 64 MLX4_DEV_CAP_FLAG_BLH = 1 << 15, 65 MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1 << 16, 66 MLX4_DEV_CAP_FLAG_APM = 1 << 17, 67 MLX4_DEV_CAP_FLAG_ATOMIC = 1 << 18, 68 MLX4_DEV_CAP_FLAG_RAW_MCAST = 1 << 19, 69 MLX4_DEV_CAP_FLAG_UD_AV_PORT = 1 << 20, 70 MLX4_DEV_CAP_FLAG_UD_MCAST = 1 << 21, 71 MLX4_DEV_CAP_FLAG_IBOE = 1 << 30 72 }; 73 74 enum { 75 MLX4_BMME_FLAG_LOCAL_INV = 1 << 6, 76 MLX4_BMME_FLAG_REMOTE_INV = 1 << 7, 77 MLX4_BMME_FLAG_TYPE_2_WIN = 1 << 9, 78 MLX4_BMME_FLAG_RESERVED_LKEY = 1 << 10, 79 MLX4_BMME_FLAG_FAST_REG_WR = 1 << 11, 80 }; 81 82 enum mlx4_event { 83 MLX4_EVENT_TYPE_COMP = 0x00, 84 MLX4_EVENT_TYPE_PATH_MIG = 0x01, 85 MLX4_EVENT_TYPE_COMM_EST = 0x02, 86 MLX4_EVENT_TYPE_SQ_DRAINED = 0x03, 87 MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13, 88 MLX4_EVENT_TYPE_SRQ_LIMIT = 0x14, 89 MLX4_EVENT_TYPE_CQ_ERROR = 0x04, 90 MLX4_EVENT_TYPE_WQ_CATAS_ERROR = 0x05, 91 MLX4_EVENT_TYPE_EEC_CATAS_ERROR = 0x06, 92 MLX4_EVENT_TYPE_PATH_MIG_FAILED = 0x07, 93 MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10, 94 MLX4_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11, 95 MLX4_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12, 96 MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR = 0x08, 97 MLX4_EVENT_TYPE_PORT_CHANGE = 0x09, 98 MLX4_EVENT_TYPE_EQ_OVERFLOW = 0x0f, 99 MLX4_EVENT_TYPE_ECC_DETECT = 0x0e, 100 MLX4_EVENT_TYPE_CMD = 0x0a 101 }; 102 103 enum { 104 MLX4_PORT_CHANGE_SUBTYPE_DOWN = 1, 105 MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4 106 }; 107 108 enum { 109 MLX4_PERM_LOCAL_READ = 1 << 10, 110 MLX4_PERM_LOCAL_WRITE = 1 << 11, 111 MLX4_PERM_REMOTE_READ = 1 << 12, 112 MLX4_PERM_REMOTE_WRITE = 1 << 13, 113 MLX4_PERM_ATOMIC = 1 << 14 114 }; 115 116 enum { 117 MLX4_OPCODE_NOP = 0x00, 118 MLX4_OPCODE_SEND_INVAL = 0x01, 119 MLX4_OPCODE_RDMA_WRITE = 0x08, 120 MLX4_OPCODE_RDMA_WRITE_IMM = 0x09, 121 MLX4_OPCODE_SEND = 0x0a, 122 MLX4_OPCODE_SEND_IMM = 0x0b, 123 MLX4_OPCODE_LSO = 0x0e, 124 MLX4_OPCODE_RDMA_READ = 0x10, 125 MLX4_OPCODE_ATOMIC_CS = 0x11, 126 MLX4_OPCODE_ATOMIC_FA = 0x12, 127 MLX4_OPCODE_MASKED_ATOMIC_CS = 0x14, 128 MLX4_OPCODE_MASKED_ATOMIC_FA = 0x15, 129 MLX4_OPCODE_BIND_MW = 0x18, 130 MLX4_OPCODE_FMR = 0x19, 131 MLX4_OPCODE_LOCAL_INVAL = 0x1b, 132 MLX4_OPCODE_CONFIG_CMD = 0x1f, 133 134 MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00, 135 MLX4_RECV_OPCODE_SEND = 0x01, 136 MLX4_RECV_OPCODE_SEND_IMM = 0x02, 137 MLX4_RECV_OPCODE_SEND_INVAL = 0x03, 138 139 MLX4_CQE_OPCODE_ERROR = 0x1e, 140 MLX4_CQE_OPCODE_RESIZE = 0x16, 141 }; 142 143 enum { 144 MLX4_STAT_RATE_OFFSET = 5 145 }; 146 147 enum mlx4_protocol { 148 MLX4_PROTOCOL_IB, 149 MLX4_PROTOCOL_EN, 150 }; 151 152 enum { 153 MLX4_MTT_FLAG_PRESENT = 1 154 }; 155 156 enum mlx4_qp_region { 157 MLX4_QP_REGION_FW = 0, 158 MLX4_QP_REGION_ETH_ADDR, 159 MLX4_QP_REGION_FC_ADDR, 160 MLX4_QP_REGION_FC_EXCH, 161 MLX4_NUM_QP_REGION 162 }; 163 164 enum mlx4_port_type { 165 MLX4_PORT_TYPE_IB = 1, 166 MLX4_PORT_TYPE_ETH = 2, 167 MLX4_PORT_TYPE_AUTO = 3 168 }; 169 170 enum mlx4_special_vlan_idx { 171 MLX4_NO_VLAN_IDX = 0, 172 MLX4_VLAN_MISS_IDX, 173 MLX4_VLAN_REGULAR 174 }; 175 176 enum { 177 MLX4_NUM_FEXCH = 64 * 1024, 178 }; 179 180 enum { 181 MLX4_MAX_FAST_REG_PAGES = 511, 182 }; 183 184 static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor) 185 { 186 return (major << 32) | (minor << 16) | subminor; 187 } 188 189 struct mlx4_caps { 190 u64 fw_ver; 191 int num_ports; 192 int vl_cap[MLX4_MAX_PORTS + 1]; 193 int ib_mtu_cap[MLX4_MAX_PORTS + 1]; 194 __be32 ib_port_def_cap[MLX4_MAX_PORTS + 1]; 195 u64 def_mac[MLX4_MAX_PORTS + 1]; 196 int eth_mtu_cap[MLX4_MAX_PORTS + 1]; 197 int gid_table_len[MLX4_MAX_PORTS + 1]; 198 int pkey_table_len[MLX4_MAX_PORTS + 1]; 199 int trans_type[MLX4_MAX_PORTS + 1]; 200 int vendor_oui[MLX4_MAX_PORTS + 1]; 201 int wavelength[MLX4_MAX_PORTS + 1]; 202 u64 trans_code[MLX4_MAX_PORTS + 1]; 203 int local_ca_ack_delay; 204 int num_uars; 205 int bf_reg_size; 206 int bf_regs_per_page; 207 int max_sq_sg; 208 int max_rq_sg; 209 int num_qps; 210 int max_wqes; 211 int max_sq_desc_sz; 212 int max_rq_desc_sz; 213 int max_qp_init_rdma; 214 int max_qp_dest_rdma; 215 int sqp_start; 216 int num_srqs; 217 int max_srq_wqes; 218 int max_srq_sge; 219 int reserved_srqs; 220 int num_cqs; 221 int max_cqes; 222 int reserved_cqs; 223 int num_eqs; 224 int reserved_eqs; 225 int num_comp_vectors; 226 int num_mpts; 227 int num_mtt_segs; 228 int mtts_per_seg; 229 int fmr_reserved_mtts; 230 int reserved_mtts; 231 int reserved_mrws; 232 int reserved_uars; 233 int num_mgms; 234 int num_amgms; 235 int reserved_mcgs; 236 int num_qp_per_mgm; 237 int num_pds; 238 int reserved_pds; 239 int mtt_entry_sz; 240 u32 max_msg_sz; 241 u32 page_size_cap; 242 u32 flags; 243 u32 bmme_flags; 244 u32 reserved_lkey; 245 u16 stat_rate_support; 246 int udp_rss; 247 int loopback_support; 248 u8 port_width_cap[MLX4_MAX_PORTS + 1]; 249 int max_gso_sz; 250 int reserved_qps_cnt[MLX4_NUM_QP_REGION]; 251 int reserved_qps; 252 int reserved_qps_base[MLX4_NUM_QP_REGION]; 253 int log_num_macs; 254 int log_num_vlans; 255 int log_num_prios; 256 enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1]; 257 u8 supported_type[MLX4_MAX_PORTS + 1]; 258 u32 port_mask; 259 enum mlx4_port_type possible_type[MLX4_MAX_PORTS + 1]; 260 }; 261 262 struct mlx4_buf_list { 263 void *buf; 264 dma_addr_t map; 265 }; 266 267 struct mlx4_buf { 268 struct mlx4_buf_list direct; 269 struct mlx4_buf_list *page_list; 270 int nbufs; 271 int npages; 272 int page_shift; 273 }; 274 275 struct mlx4_mtt { 276 u32 first_seg; 277 int order; 278 int page_shift; 279 }; 280 281 enum { 282 MLX4_DB_PER_PAGE = PAGE_SIZE / 4 283 }; 284 285 struct mlx4_db_pgdir { 286 struct list_head list; 287 DECLARE_BITMAP(order0, MLX4_DB_PER_PAGE); 288 DECLARE_BITMAP(order1, MLX4_DB_PER_PAGE / 2); 289 unsigned long *bits[2]; 290 __be32 *db_page; 291 dma_addr_t db_dma; 292 }; 293 294 struct mlx4_ib_user_db_page; 295 296 struct mlx4_db { 297 __be32 *db; 298 union { 299 struct mlx4_db_pgdir *pgdir; 300 struct mlx4_ib_user_db_page *user_page; 301 } u; 302 dma_addr_t dma; 303 int index; 304 int order; 305 }; 306 307 struct mlx4_hwq_resources { 308 struct mlx4_db db; 309 struct mlx4_mtt mtt; 310 struct mlx4_buf buf; 311 }; 312 313 struct mlx4_mr { 314 struct mlx4_mtt mtt; 315 u64 iova; 316 u64 size; 317 u32 key; 318 u32 pd; 319 u32 access; 320 int enabled; 321 }; 322 323 struct mlx4_fmr { 324 struct mlx4_mr mr; 325 struct mlx4_mpt_entry *mpt; 326 __be64 *mtts; 327 dma_addr_t dma_handle; 328 int max_pages; 329 int max_maps; 330 int maps; 331 u8 page_shift; 332 }; 333 334 struct mlx4_uar { 335 unsigned long pfn; 336 int index; 337 }; 338 339 struct mlx4_cq { 340 void (*comp) (struct mlx4_cq *); 341 void (*event) (struct mlx4_cq *, enum mlx4_event); 342 343 struct mlx4_uar *uar; 344 345 u32 cons_index; 346 347 __be32 *set_ci_db; 348 __be32 *arm_db; 349 int arm_sn; 350 351 int cqn; 352 unsigned vector; 353 354 atomic_t refcount; 355 struct completion free; 356 }; 357 358 struct mlx4_qp { 359 void (*event) (struct mlx4_qp *, enum mlx4_event); 360 361 int qpn; 362 363 atomic_t refcount; 364 struct completion free; 365 }; 366 367 struct mlx4_srq { 368 void (*event) (struct mlx4_srq *, enum mlx4_event); 369 370 int srqn; 371 int max; 372 int max_gs; 373 int wqe_shift; 374 375 atomic_t refcount; 376 struct completion free; 377 }; 378 379 struct mlx4_av { 380 __be32 port_pd; 381 u8 reserved1; 382 u8 g_slid; 383 __be16 dlid; 384 u8 reserved2; 385 u8 gid_index; 386 u8 stat_rate; 387 u8 hop_limit; 388 __be32 sl_tclass_flowlabel; 389 u8 dgid[16]; 390 }; 391 392 struct mlx4_eth_av { 393 __be32 port_pd; 394 u8 reserved1; 395 u8 smac_idx; 396 u16 reserved2; 397 u8 reserved3; 398 u8 gid_index; 399 u8 stat_rate; 400 u8 hop_limit; 401 __be32 sl_tclass_flowlabel; 402 u8 dgid[16]; 403 u32 reserved4[2]; 404 __be16 vlan; 405 u8 mac[6]; 406 }; 407 408 union mlx4_ext_av { 409 struct mlx4_av ib; 410 struct mlx4_eth_av eth; 411 }; 412 413 struct mlx4_dev { 414 struct pci_dev *pdev; 415 unsigned long flags; 416 struct mlx4_caps caps; 417 struct radix_tree_root qp_table_tree; 418 u32 rev_id; 419 char board_id[MLX4_BOARD_ID_LEN]; 420 }; 421 422 struct mlx4_init_port_param { 423 int set_guid0; 424 int set_node_guid; 425 int set_si_guid; 426 u16 mtu; 427 int port_width_cap; 428 u16 vl_cap; 429 u16 max_gid; 430 u16 max_pkey; 431 u64 guid0; 432 u64 node_guid; 433 u64 si_guid; 434 }; 435 436 #define mlx4_foreach_port(port, dev, type) \ 437 for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \ 438 if (((type) == MLX4_PORT_TYPE_IB ? (dev)->caps.port_mask : \ 439 ~(dev)->caps.port_mask) & 1 << ((port) - 1)) 440 441 #define mlx4_foreach_ib_transport_port(port, dev) \ 442 for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \ 443 if (((dev)->caps.port_mask & 1 << ((port) - 1)) || \ 444 ((dev)->caps.flags & MLX4_DEV_CAP_FLAG_IBOE)) 445 446 447 int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct, 448 struct mlx4_buf *buf); 449 void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf); 450 static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset) 451 { 452 if (BITS_PER_LONG == 64 || buf->nbufs == 1) 453 return buf->direct.buf + offset; 454 else 455 return buf->page_list[offset >> PAGE_SHIFT].buf + 456 (offset & (PAGE_SIZE - 1)); 457 } 458 459 int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn); 460 void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn); 461 462 int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar); 463 void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar); 464 465 int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift, 466 struct mlx4_mtt *mtt); 467 void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt); 468 u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt); 469 470 int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access, 471 int npages, int page_shift, struct mlx4_mr *mr); 472 void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr); 473 int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr); 474 int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt, 475 int start_index, int npages, u64 *page_list); 476 int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt, 477 struct mlx4_buf *buf); 478 479 int mlx4_db_alloc(struct mlx4_dev *dev, struct mlx4_db *db, int order); 480 void mlx4_db_free(struct mlx4_dev *dev, struct mlx4_db *db); 481 482 int mlx4_alloc_hwq_res(struct mlx4_dev *dev, struct mlx4_hwq_resources *wqres, 483 int size, int max_direct); 484 void mlx4_free_hwq_res(struct mlx4_dev *mdev, struct mlx4_hwq_resources *wqres, 485 int size); 486 487 int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt, 488 struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq, 489 unsigned vector, int collapsed); 490 void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq); 491 492 int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base); 493 void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt); 494 495 int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp); 496 void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp); 497 498 int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt, 499 u64 db_rec, struct mlx4_srq *srq); 500 void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq); 501 int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark); 502 int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark); 503 504 int mlx4_INIT_PORT(struct mlx4_dev *dev, int port); 505 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port); 506 507 int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], 508 int block_mcast_loopback, enum mlx4_protocol protocol); 509 int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], 510 enum mlx4_protocol protocol); 511 512 int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index); 513 void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index); 514 515 int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx); 516 int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index); 517 void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index); 518 519 int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list, 520 int npages, u64 iova, u32 *lkey, u32 *rkey); 521 int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages, 522 int max_maps, u8 page_shift, struct mlx4_fmr *fmr); 523 int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr); 524 void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr, 525 u32 *lkey, u32 *rkey); 526 int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr); 527 int mlx4_SYNC_TPT(struct mlx4_dev *dev); 528 int mlx4_test_interrupts(struct mlx4_dev *dev); 529 530 #endif /* MLX4_DEVICE_H */ 531