1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ 2 /* 3 * Copyright (c) 2013-2020, Mellanox Technologies inc. All rights reserved. 4 * Copyright (c) 2020, Intel Corporation. All rights reserved. 5 */ 6 7 #ifndef MLX5_IB_H 8 #define MLX5_IB_H 9 10 #include <linux/kernel.h> 11 #include <linux/sched.h> 12 #include <rdma/ib_verbs.h> 13 #include <rdma/ib_umem.h> 14 #include <rdma/ib_smi.h> 15 #include <linux/mlx5/driver.h> 16 #include <linux/mlx5/cq.h> 17 #include <linux/mlx5/fs.h> 18 #include <linux/mlx5/qp.h> 19 #include <linux/types.h> 20 #include <linux/mlx5/transobj.h> 21 #include <rdma/ib_user_verbs.h> 22 #include <rdma/mlx5-abi.h> 23 #include <rdma/uverbs_ioctl.h> 24 #include <rdma/mlx5_user_ioctl_cmds.h> 25 #include <rdma/mlx5_user_ioctl_verbs.h> 26 27 #include "srq.h" 28 #include "qp.h" 29 #include "macsec.h" 30 31 #define mlx5_ib_dbg(_dev, format, arg...) \ 32 dev_dbg(&(_dev)->ib_dev.dev, "%s:%d:(pid %d): " format, __func__, \ 33 __LINE__, current->pid, ##arg) 34 35 #define mlx5_ib_err(_dev, format, arg...) \ 36 dev_err(&(_dev)->ib_dev.dev, "%s:%d:(pid %d): " format, __func__, \ 37 __LINE__, current->pid, ##arg) 38 39 #define mlx5_ib_warn(_dev, format, arg...) \ 40 dev_warn(&(_dev)->ib_dev.dev, "%s:%d:(pid %d): " format, __func__, \ 41 __LINE__, current->pid, ##arg) 42 43 #define mlx5_ib_log(lvl, _dev, format, arg...) \ 44 dev_printk(lvl, &(_dev)->ib_dev.dev, "%s:%d:(pid %d): " format, \ 45 __func__, __LINE__, current->pid, ##arg) 46 47 #define MLX5_IB_DEFAULT_UIDX 0xffffff 48 #define MLX5_USER_ASSIGNED_UIDX_MASK __mlx5_mask(qpc, user_index) 49 50 static __always_inline unsigned long 51 __mlx5_log_page_size_to_bitmap(unsigned int log_pgsz_bits, 52 unsigned int pgsz_shift) 53 { 54 unsigned int largest_pg_shift = 55 min_t(unsigned long, (1ULL << log_pgsz_bits) - 1 + pgsz_shift, 56 BITS_PER_LONG - 1); 57 58 /* 59 * Despite a command allowing it, the device does not support lower than 60 * 4k page size. 61 */ 62 pgsz_shift = max_t(unsigned int, MLX5_ADAPTER_PAGE_SHIFT, pgsz_shift); 63 return GENMASK(largest_pg_shift, pgsz_shift); 64 } 65 66 /* 67 * For mkc users, instead of a page_offset the command has a start_iova which 68 * specifies both the page_offset and the on-the-wire IOVA 69 */ 70 #define mlx5_umem_find_best_pgsz(umem, typ, log_pgsz_fld, pgsz_shift, iova) \ 71 ib_umem_find_best_pgsz(umem, \ 72 __mlx5_log_page_size_to_bitmap( \ 73 __mlx5_bit_sz(typ, log_pgsz_fld), \ 74 pgsz_shift), \ 75 iova) 76 77 static __always_inline unsigned long 78 __mlx5_page_offset_to_bitmask(unsigned int page_offset_bits, 79 unsigned int offset_shift) 80 { 81 unsigned int largest_offset_shift = 82 min_t(unsigned long, page_offset_bits - 1 + offset_shift, 83 BITS_PER_LONG - 1); 84 85 return GENMASK(largest_offset_shift, offset_shift); 86 } 87 88 /* 89 * QP/CQ/WQ/etc type commands take a page offset that satisifies: 90 * page_offset_quantized * (page_size/scale) = page_offset 91 * Which restricts allowed page sizes to ones that satisify the above. 92 */ 93 unsigned long __mlx5_umem_find_best_quantized_pgoff( 94 struct ib_umem *umem, unsigned long pgsz_bitmap, 95 unsigned int page_offset_bits, u64 pgoff_bitmask, unsigned int scale, 96 unsigned int *page_offset_quantized); 97 #define mlx5_umem_find_best_quantized_pgoff(umem, typ, log_pgsz_fld, \ 98 pgsz_shift, page_offset_fld, \ 99 scale, page_offset_quantized) \ 100 __mlx5_umem_find_best_quantized_pgoff( \ 101 umem, \ 102 __mlx5_log_page_size_to_bitmap( \ 103 __mlx5_bit_sz(typ, log_pgsz_fld), pgsz_shift), \ 104 __mlx5_bit_sz(typ, page_offset_fld), \ 105 GENMASK(31, order_base_2(scale)), scale, \ 106 page_offset_quantized) 107 108 #define mlx5_umem_find_best_cq_quantized_pgoff(umem, typ, log_pgsz_fld, \ 109 pgsz_shift, page_offset_fld, \ 110 scale, page_offset_quantized) \ 111 __mlx5_umem_find_best_quantized_pgoff( \ 112 umem, \ 113 __mlx5_log_page_size_to_bitmap( \ 114 __mlx5_bit_sz(typ, log_pgsz_fld), pgsz_shift), \ 115 __mlx5_bit_sz(typ, page_offset_fld), 0, scale, \ 116 page_offset_quantized) 117 118 enum { 119 MLX5_IB_MMAP_OFFSET_START = 9, 120 MLX5_IB_MMAP_OFFSET_END = 255, 121 }; 122 123 enum { 124 MLX5_IB_MMAP_CMD_SHIFT = 8, 125 MLX5_IB_MMAP_CMD_MASK = 0xff, 126 }; 127 128 enum { 129 MLX5_RES_SCAT_DATA32_CQE = 0x1, 130 MLX5_RES_SCAT_DATA64_CQE = 0x2, 131 MLX5_REQ_SCAT_DATA32_CQE = 0x11, 132 MLX5_REQ_SCAT_DATA64_CQE = 0x22, 133 }; 134 135 enum mlx5_ib_mad_ifc_flags { 136 MLX5_MAD_IFC_IGNORE_MKEY = 1, 137 MLX5_MAD_IFC_IGNORE_BKEY = 2, 138 MLX5_MAD_IFC_NET_VIEW = 4, 139 }; 140 141 enum { 142 MLX5_CROSS_CHANNEL_BFREG = 0, 143 }; 144 145 enum { 146 MLX5_CQE_VERSION_V0, 147 MLX5_CQE_VERSION_V1, 148 }; 149 150 enum { 151 MLX5_TM_MAX_RNDV_MSG_SIZE = 64, 152 MLX5_TM_MAX_SGE = 1, 153 }; 154 155 enum { 156 MLX5_IB_INVALID_UAR_INDEX = BIT(31), 157 MLX5_IB_INVALID_BFREG = BIT(31), 158 }; 159 160 enum { 161 MLX5_MAX_MEMIC_PAGES = 0x100, 162 MLX5_MEMIC_ALLOC_SIZE_MASK = 0x3f, 163 }; 164 165 enum { 166 MLX5_MEMIC_BASE_ALIGN = 6, 167 MLX5_MEMIC_BASE_SIZE = 1 << MLX5_MEMIC_BASE_ALIGN, 168 }; 169 170 enum mlx5_ib_mmap_type { 171 MLX5_IB_MMAP_TYPE_MEMIC = 1, 172 MLX5_IB_MMAP_TYPE_VAR = 2, 173 MLX5_IB_MMAP_TYPE_UAR_WC = 3, 174 MLX5_IB_MMAP_TYPE_UAR_NC = 4, 175 MLX5_IB_MMAP_TYPE_MEMIC_OP = 5, 176 }; 177 178 struct mlx5_bfreg_info { 179 u32 *sys_pages; 180 int num_low_latency_bfregs; 181 unsigned int *count; 182 183 /* 184 * protect bfreg allocation data structs 185 */ 186 struct mutex lock; 187 u32 ver; 188 u8 lib_uar_4k : 1; 189 u8 lib_uar_dyn : 1; 190 u32 num_sys_pages; 191 u32 num_static_sys_pages; 192 u32 total_num_bfregs; 193 u32 num_dyn_bfregs; 194 }; 195 196 struct mlx5_ib_ucontext { 197 struct ib_ucontext ibucontext; 198 struct list_head db_page_list; 199 200 /* protect doorbell record alloc/free 201 */ 202 struct mutex db_page_mutex; 203 struct mlx5_bfreg_info bfregi; 204 u8 cqe_version; 205 /* Transport Domain number */ 206 u32 tdn; 207 208 u64 lib_caps; 209 u16 devx_uid; 210 /* For RoCE LAG TX affinity */ 211 atomic_t tx_port_affinity; 212 }; 213 214 static inline struct mlx5_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext) 215 { 216 return container_of(ibucontext, struct mlx5_ib_ucontext, ibucontext); 217 } 218 219 struct mlx5_ib_pd { 220 struct ib_pd ibpd; 221 u32 pdn; 222 u16 uid; 223 }; 224 225 enum { 226 MLX5_IB_FLOW_ACTION_MODIFY_HEADER, 227 MLX5_IB_FLOW_ACTION_PACKET_REFORMAT, 228 MLX5_IB_FLOW_ACTION_DECAP, 229 }; 230 231 #define MLX5_IB_FLOW_MCAST_PRIO (MLX5_BY_PASS_NUM_PRIOS - 1) 232 #define MLX5_IB_FLOW_LAST_PRIO (MLX5_BY_PASS_NUM_REGULAR_PRIOS - 1) 233 #if (MLX5_IB_FLOW_LAST_PRIO <= 0) 234 #error "Invalid number of bypass priorities" 235 #endif 236 #define MLX5_IB_FLOW_LEFTOVERS_PRIO (MLX5_IB_FLOW_MCAST_PRIO + 1) 237 238 #define MLX5_IB_NUM_FLOW_FT (MLX5_IB_FLOW_LEFTOVERS_PRIO + 1) 239 #define MLX5_IB_NUM_SNIFFER_FTS 2 240 #define MLX5_IB_NUM_EGRESS_FTS 1 241 #define MLX5_IB_NUM_FDB_FTS MLX5_BY_PASS_NUM_REGULAR_PRIOS 242 243 struct mlx5_ib_anchor { 244 struct mlx5_flow_table *ft; 245 struct mlx5_flow_group *fg_goto_table; 246 struct mlx5_flow_group *fg_drop; 247 struct mlx5_flow_handle *rule_goto_table; 248 struct mlx5_flow_handle *rule_drop; 249 unsigned int rule_goto_table_ref; 250 }; 251 252 struct mlx5_ib_flow_prio { 253 struct mlx5_flow_table *flow_table; 254 struct mlx5_ib_anchor anchor; 255 unsigned int refcount; 256 }; 257 258 struct mlx5_ib_flow_handler { 259 struct list_head list; 260 struct ib_flow ibflow; 261 struct mlx5_ib_flow_prio *prio; 262 struct mlx5_flow_handle *rule; 263 struct ib_counters *ibcounters; 264 struct mlx5_ib_dev *dev; 265 struct mlx5_ib_flow_matcher *flow_matcher; 266 }; 267 268 struct mlx5_ib_flow_matcher { 269 struct mlx5_ib_match_params matcher_mask; 270 int mask_len; 271 enum mlx5_ib_flow_type flow_type; 272 enum mlx5_flow_namespace_type ns_type; 273 u16 priority; 274 struct mlx5_core_dev *mdev; 275 atomic_t usecnt; 276 u8 match_criteria_enable; 277 }; 278 279 struct mlx5_ib_steering_anchor { 280 struct mlx5_ib_flow_prio *ft_prio; 281 struct mlx5_ib_dev *dev; 282 atomic_t usecnt; 283 }; 284 285 struct mlx5_ib_pp { 286 u16 index; 287 struct mlx5_core_dev *mdev; 288 }; 289 290 enum mlx5_ib_optional_counter_type { 291 MLX5_IB_OPCOUNTER_CC_RX_CE_PKTS, 292 MLX5_IB_OPCOUNTER_CC_RX_CNP_PKTS, 293 MLX5_IB_OPCOUNTER_CC_TX_CNP_PKTS, 294 295 MLX5_IB_OPCOUNTER_MAX, 296 }; 297 298 struct mlx5_ib_flow_db { 299 struct mlx5_ib_flow_prio prios[MLX5_IB_NUM_FLOW_FT]; 300 struct mlx5_ib_flow_prio egress_prios[MLX5_IB_NUM_FLOW_FT]; 301 struct mlx5_ib_flow_prio sniffer[MLX5_IB_NUM_SNIFFER_FTS]; 302 struct mlx5_ib_flow_prio egress[MLX5_IB_NUM_EGRESS_FTS]; 303 struct mlx5_ib_flow_prio fdb[MLX5_IB_NUM_FDB_FTS]; 304 struct mlx5_ib_flow_prio rdma_rx[MLX5_IB_NUM_FLOW_FT]; 305 struct mlx5_ib_flow_prio rdma_tx[MLX5_IB_NUM_FLOW_FT]; 306 struct mlx5_ib_flow_prio opfcs[MLX5_IB_OPCOUNTER_MAX]; 307 struct mlx5_flow_table *lag_demux_ft; 308 /* Protect flow steering bypass flow tables 309 * when add/del flow rules. 310 * only single add/removal of flow steering rule could be done 311 * simultaneously. 312 */ 313 struct mutex lock; 314 }; 315 316 /* Use macros here so that don't have to duplicate 317 * enum ib_qp_type for low-level driver 318 */ 319 320 #define MLX5_IB_QPT_REG_UMR IB_QPT_RESERVED1 321 /* 322 * IB_QPT_GSI creates the software wrapper around GSI, and MLX5_IB_QPT_HW_GSI 323 * creates the actual hardware QP. 324 */ 325 #define MLX5_IB_QPT_HW_GSI IB_QPT_RESERVED2 326 #define MLX5_IB_QPT_DCI IB_QPT_RESERVED3 327 #define MLX5_IB_QPT_DCT IB_QPT_RESERVED4 328 #define MLX5_IB_WR_UMR IB_WR_RESERVED1 329 330 #define MLX5_IB_UPD_XLT_ZAP BIT(0) 331 #define MLX5_IB_UPD_XLT_ENABLE BIT(1) 332 #define MLX5_IB_UPD_XLT_ATOMIC BIT(2) 333 #define MLX5_IB_UPD_XLT_ADDR BIT(3) 334 #define MLX5_IB_UPD_XLT_PD BIT(4) 335 #define MLX5_IB_UPD_XLT_ACCESS BIT(5) 336 #define MLX5_IB_UPD_XLT_INDIRECT BIT(6) 337 338 /* Private QP creation flags to be passed in ib_qp_init_attr.create_flags. 339 * 340 * These flags are intended for internal use by the mlx5_ib driver, and they 341 * rely on the range reserved for that use in the ib_qp_create_flags enum. 342 */ 343 #define MLX5_IB_QP_CREATE_SQPN_QP1 IB_QP_CREATE_RESERVED_START 344 #define MLX5_IB_QP_CREATE_WC_TEST (IB_QP_CREATE_RESERVED_START << 1) 345 346 struct wr_list { 347 u16 opcode; 348 u16 next; 349 }; 350 351 enum mlx5_ib_rq_flags { 352 MLX5_IB_RQ_CVLAN_STRIPPING = 1 << 0, 353 MLX5_IB_RQ_PCI_WRITE_END_PADDING = 1 << 1, 354 }; 355 356 struct mlx5_ib_wq { 357 struct mlx5_frag_buf_ctrl fbc; 358 u64 *wrid; 359 u32 *wr_data; 360 struct wr_list *w_list; 361 unsigned *wqe_head; 362 u16 unsig_count; 363 364 /* serialize post to the work queue 365 */ 366 spinlock_t lock; 367 int wqe_cnt; 368 int max_post; 369 int max_gs; 370 int offset; 371 int wqe_shift; 372 unsigned head; 373 unsigned tail; 374 u16 cur_post; 375 u16 last_poll; 376 void *cur_edge; 377 }; 378 379 enum mlx5_ib_wq_flags { 380 MLX5_IB_WQ_FLAGS_DELAY_DROP = 0x1, 381 MLX5_IB_WQ_FLAGS_STRIDING_RQ = 0x2, 382 }; 383 384 #define MLX5_MIN_SINGLE_WQE_LOG_NUM_STRIDES 9 385 #define MLX5_MAX_SINGLE_WQE_LOG_NUM_STRIDES 16 386 #define MLX5_MIN_SINGLE_STRIDE_LOG_NUM_BYTES 6 387 #define MLX5_MAX_SINGLE_STRIDE_LOG_NUM_BYTES 13 388 #define MLX5_EXT_MIN_SINGLE_WQE_LOG_NUM_STRIDES 3 389 390 struct mlx5_ib_rwq { 391 struct ib_wq ibwq; 392 struct mlx5_core_qp core_qp; 393 u32 rq_num_pas; 394 u32 log_rq_stride; 395 u32 log_rq_size; 396 u32 rq_page_offset; 397 u32 log_page_size; 398 u32 log_num_strides; 399 u32 two_byte_shift_en; 400 u32 single_stride_log_num_of_bytes; 401 struct ib_umem *umem; 402 size_t buf_size; 403 unsigned int page_shift; 404 struct mlx5_db db; 405 u32 user_index; 406 u32 wqe_count; 407 u32 wqe_shift; 408 int wq_sig; 409 u32 create_flags; /* Use enum mlx5_ib_wq_flags */ 410 }; 411 412 struct mlx5_ib_rwq_ind_table { 413 struct ib_rwq_ind_table ib_rwq_ind_tbl; 414 u32 rqtn; 415 u16 uid; 416 }; 417 418 struct mlx5_ib_ubuffer { 419 struct ib_umem *umem; 420 int buf_size; 421 u64 buf_addr; 422 }; 423 424 struct mlx5_ib_qp_base { 425 struct mlx5_ib_qp *container_mibqp; 426 struct mlx5_core_qp mqp; 427 struct mlx5_ib_ubuffer ubuffer; 428 }; 429 430 struct mlx5_ib_qp_trans { 431 struct mlx5_ib_qp_base base; 432 u16 xrcdn; 433 u32 alt_port; 434 u8 atomic_rd_en; 435 u8 resp_depth; 436 }; 437 438 struct mlx5_ib_rss_qp { 439 u32 tirn; 440 }; 441 442 struct mlx5_ib_rq { 443 struct mlx5_ib_qp_base base; 444 struct mlx5_ib_wq *rq; 445 struct mlx5_ib_ubuffer ubuffer; 446 struct mlx5_db *doorbell; 447 u32 tirn; 448 u8 state; 449 u32 flags; 450 }; 451 452 struct mlx5_ib_sq { 453 struct mlx5_ib_qp_base base; 454 struct mlx5_ib_wq *sq; 455 struct mlx5_ib_ubuffer ubuffer; 456 struct mlx5_db *doorbell; 457 struct mlx5_flow_handle *flow_rule; 458 u32 tisn; 459 u8 state; 460 }; 461 462 struct mlx5_ib_raw_packet_qp { 463 struct mlx5_ib_sq sq; 464 struct mlx5_ib_rq rq; 465 }; 466 467 struct mlx5_bf { 468 int buf_size; 469 unsigned long offset; 470 struct mlx5_sq_bfreg *bfreg; 471 }; 472 473 struct mlx5_ib_dct { 474 struct mlx5_core_dct mdct; 475 u32 *in; 476 }; 477 478 struct mlx5_ib_gsi_qp { 479 struct ib_qp *rx_qp; 480 u32 port_num; 481 struct ib_qp_cap cap; 482 struct ib_cq *cq; 483 struct mlx5_ib_gsi_wr *outstanding_wrs; 484 u32 outstanding_pi, outstanding_ci; 485 int num_qps; 486 /* Protects access to the tx_qps. Post send operations synchronize 487 * with tx_qp creation in setup_qp(). Also protects the 488 * outstanding_wrs array and indices. 489 */ 490 spinlock_t lock; 491 struct ib_qp **tx_qps; 492 }; 493 494 struct mlx5_ib_qp { 495 struct ib_qp ibqp; 496 union { 497 struct mlx5_ib_qp_trans trans_qp; 498 struct mlx5_ib_raw_packet_qp raw_packet_qp; 499 struct mlx5_ib_rss_qp rss_qp; 500 struct mlx5_ib_dct dct; 501 struct mlx5_ib_gsi_qp gsi; 502 }; 503 struct mlx5_frag_buf buf; 504 505 struct mlx5_db db; 506 struct mlx5_ib_wq rq; 507 508 u8 sq_signal_bits; 509 u8 next_fence; 510 struct mlx5_ib_wq sq; 511 512 /* serialize qp state modifications 513 */ 514 struct mutex mutex; 515 /* cached variant of create_flags from struct ib_qp_init_attr */ 516 u32 flags; 517 u32 port; 518 u8 state; 519 int max_inline_data; 520 struct mlx5_bf bf; 521 u8 has_rq:1; 522 u8 is_rss:1; 523 524 /* only for user space QPs. For kernel 525 * we have it from the bf object 526 */ 527 int bfregn; 528 529 struct list_head qps_list; 530 struct list_head cq_recv_list; 531 struct list_head cq_send_list; 532 struct mlx5_rate_limit rl; 533 u32 underlay_qpn; 534 u32 flags_en; 535 /* 536 * IB/core doesn't store low-level QP types, so 537 * store both MLX and IBTA types in the field below. 538 */ 539 enum ib_qp_type type; 540 /* A flag to indicate if there's a new counter is configured 541 * but not take effective 542 */ 543 u32 counter_pending; 544 u16 gsi_lag_port; 545 }; 546 547 struct mlx5_ib_cq_buf { 548 struct mlx5_frag_buf_ctrl fbc; 549 struct mlx5_frag_buf frag_buf; 550 struct ib_umem *umem; 551 int cqe_size; 552 int nent; 553 }; 554 555 enum mlx5_ib_cq_pr_flags { 556 MLX5_IB_CQ_PR_FLAGS_CQE_128_PAD = 1 << 0, 557 MLX5_IB_CQ_PR_FLAGS_REAL_TIME_TS = 1 << 1, 558 }; 559 560 struct mlx5_ib_cq { 561 struct ib_cq ibcq; 562 struct mlx5_core_cq mcq; 563 struct mlx5_ib_cq_buf buf; 564 struct mlx5_db db; 565 566 /* serialize access to the CQ 567 */ 568 spinlock_t lock; 569 570 /* protect resize cq 571 */ 572 struct mutex resize_mutex; 573 struct mlx5_ib_cq_buf *resize_buf; 574 struct ib_umem *resize_umem; 575 int cqe_size; 576 struct list_head list_send_qp; 577 struct list_head list_recv_qp; 578 u32 create_flags; 579 struct list_head wc_list; 580 enum ib_cq_notify_flags notify_flags; 581 struct work_struct notify_work; 582 u16 private_flags; /* Use mlx5_ib_cq_pr_flags */ 583 }; 584 585 struct mlx5_ib_wc { 586 struct ib_wc wc; 587 struct list_head list; 588 }; 589 590 struct mlx5_ib_srq { 591 struct ib_srq ibsrq; 592 struct mlx5_core_srq msrq; 593 struct mlx5_frag_buf buf; 594 struct mlx5_db db; 595 struct mlx5_frag_buf_ctrl fbc; 596 u64 *wrid; 597 /* protect SRQ hanlding 598 */ 599 spinlock_t lock; 600 int head; 601 int tail; 602 u16 wqe_ctr; 603 struct ib_umem *umem; 604 /* serialize arming a SRQ 605 */ 606 struct mutex mutex; 607 int wq_sig; 608 }; 609 610 struct mlx5_ib_xrcd { 611 struct ib_xrcd ibxrcd; 612 u32 xrcdn; 613 }; 614 615 enum mlx5_ib_mtt_access_flags { 616 MLX5_IB_MTT_READ = (1 << 0), 617 MLX5_IB_MTT_WRITE = (1 << 1), 618 }; 619 620 struct mlx5_user_mmap_entry { 621 struct rdma_user_mmap_entry rdma_entry; 622 u8 mmap_flag; 623 u64 address; 624 u32 page_idx; 625 }; 626 627 enum mlx5_mkey_type { 628 MLX5_MKEY_MR = 1, 629 MLX5_MKEY_MW, 630 MLX5_MKEY_INDIRECT_DEVX, 631 }; 632 633 struct mlx5r_cache_rb_key { 634 u8 ats:1; 635 unsigned int access_mode; 636 unsigned int access_flags; 637 unsigned int ndescs; 638 }; 639 640 struct mlx5_ib_mkey { 641 u32 key; 642 enum mlx5_mkey_type type; 643 unsigned int ndescs; 644 struct wait_queue_head wait; 645 refcount_t usecount; 646 /* User Mkey must hold either a rb_key or a cache_ent. */ 647 struct mlx5r_cache_rb_key rb_key; 648 struct mlx5_cache_ent *cache_ent; 649 }; 650 651 #define MLX5_IB_MTT_PRESENT (MLX5_IB_MTT_READ | MLX5_IB_MTT_WRITE) 652 653 #define MLX5_IB_DM_MEMIC_ALLOWED_ACCESS (IB_ACCESS_LOCAL_WRITE |\ 654 IB_ACCESS_REMOTE_WRITE |\ 655 IB_ACCESS_REMOTE_READ |\ 656 IB_ACCESS_REMOTE_ATOMIC |\ 657 IB_ZERO_BASED) 658 659 #define MLX5_IB_DM_SW_ICM_ALLOWED_ACCESS (IB_ACCESS_LOCAL_WRITE |\ 660 IB_ACCESS_REMOTE_WRITE |\ 661 IB_ACCESS_REMOTE_READ |\ 662 IB_ZERO_BASED) 663 664 #define mlx5_update_odp_stats(mr, counter_name, value) \ 665 atomic64_add(value, &((mr)->odp_stats.counter_name)) 666 667 struct mlx5_ib_mr { 668 struct ib_mr ibmr; 669 struct mlx5_ib_mkey mmkey; 670 671 struct ib_umem *umem; 672 673 union { 674 /* Used only by kernel MRs (umem == NULL) */ 675 struct { 676 void *descs; 677 void *descs_alloc; 678 dma_addr_t desc_map; 679 int max_descs; 680 int desc_size; 681 int access_mode; 682 683 /* For Kernel IB_MR_TYPE_INTEGRITY */ 684 struct mlx5_core_sig_ctx *sig; 685 struct mlx5_ib_mr *pi_mr; 686 struct mlx5_ib_mr *klm_mr; 687 struct mlx5_ib_mr *mtt_mr; 688 u64 data_iova; 689 u64 pi_iova; 690 int meta_ndescs; 691 int meta_length; 692 int data_length; 693 }; 694 695 /* Used only by User MRs (umem != NULL) */ 696 struct { 697 unsigned int page_shift; 698 /* Current access_flags */ 699 int access_flags; 700 701 /* For User ODP */ 702 struct mlx5_ib_mr *parent; 703 struct xarray implicit_children; 704 union { 705 struct work_struct work; 706 } odp_destroy; 707 struct ib_odp_counters odp_stats; 708 bool is_odp_implicit; 709 }; 710 }; 711 }; 712 713 static inline bool is_odp_mr(struct mlx5_ib_mr *mr) 714 { 715 return IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING) && mr->umem && 716 mr->umem->is_odp; 717 } 718 719 static inline bool is_dmabuf_mr(struct mlx5_ib_mr *mr) 720 { 721 return IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING) && mr->umem && 722 mr->umem->is_dmabuf; 723 } 724 725 struct mlx5_ib_mw { 726 struct ib_mw ibmw; 727 struct mlx5_ib_mkey mmkey; 728 }; 729 730 struct mlx5_ib_umr_context { 731 struct ib_cqe cqe; 732 enum ib_wc_status status; 733 struct completion done; 734 }; 735 736 enum { 737 MLX5_UMR_STATE_UNINIT, 738 MLX5_UMR_STATE_ACTIVE, 739 MLX5_UMR_STATE_RECOVER, 740 MLX5_UMR_STATE_ERR, 741 }; 742 743 struct umr_common { 744 struct ib_pd *pd; 745 struct ib_cq *cq; 746 struct ib_qp *qp; 747 /* Protects from UMR QP overflow 748 */ 749 struct semaphore sem; 750 /* Protects from using UMR while the UMR is not active 751 */ 752 struct mutex lock; 753 unsigned int state; 754 }; 755 756 struct mlx5_cache_ent { 757 struct xarray mkeys; 758 unsigned long stored; 759 unsigned long reserved; 760 761 char name[4]; 762 763 struct rb_node node; 764 struct mlx5r_cache_rb_key rb_key; 765 766 u8 is_tmp:1; 767 u8 disabled:1; 768 u8 fill_to_high_water:1; 769 770 /* 771 * - limit is the low water mark for stored mkeys, 2* limit is the 772 * upper water mark. 773 */ 774 u32 in_use; 775 u32 limit; 776 777 /* Statistics */ 778 u32 miss; 779 780 struct mlx5_ib_dev *dev; 781 struct delayed_work dwork; 782 }; 783 784 struct mlx5r_async_create_mkey { 785 union { 786 u32 in[MLX5_ST_SZ_BYTES(create_mkey_in)]; 787 u32 out[MLX5_ST_SZ_DW(create_mkey_out)]; 788 }; 789 struct mlx5_async_work cb_work; 790 struct mlx5_cache_ent *ent; 791 u32 mkey; 792 }; 793 794 struct mlx5_mkey_cache { 795 struct workqueue_struct *wq; 796 struct rb_root rb_root; 797 struct mutex rb_lock; 798 struct dentry *fs_root; 799 unsigned long last_add; 800 struct delayed_work remove_ent_dwork; 801 }; 802 803 struct mlx5_ib_port_resources { 804 struct mlx5_ib_gsi_qp *gsi; 805 struct work_struct pkey_change_work; 806 }; 807 808 struct mlx5_ib_resources { 809 struct ib_cq *c0; 810 u32 xrcdn0; 811 u32 xrcdn1; 812 struct ib_pd *p0; 813 struct ib_srq *s0; 814 struct ib_srq *s1; 815 struct mlx5_ib_port_resources ports[2]; 816 }; 817 818 #define MAX_OPFC_RULES 2 819 820 struct mlx5_ib_op_fc { 821 struct mlx5_fc *fc; 822 struct mlx5_flow_handle *rule[MAX_OPFC_RULES]; 823 }; 824 825 struct mlx5_ib_counters { 826 struct rdma_stat_desc *descs; 827 size_t *offsets; 828 u32 num_q_counters; 829 u32 num_cong_counters; 830 u32 num_ext_ppcnt_counters; 831 u32 num_op_counters; 832 u16 set_id; 833 struct mlx5_ib_op_fc opfcs[MLX5_IB_OPCOUNTER_MAX]; 834 }; 835 836 int mlx5_ib_fs_add_op_fc(struct mlx5_ib_dev *dev, u32 port_num, 837 struct mlx5_ib_op_fc *opfc, 838 enum mlx5_ib_optional_counter_type type); 839 840 void mlx5_ib_fs_remove_op_fc(struct mlx5_ib_dev *dev, 841 struct mlx5_ib_op_fc *opfc, 842 enum mlx5_ib_optional_counter_type type); 843 844 struct mlx5_ib_multiport_info; 845 846 struct mlx5_ib_multiport { 847 struct mlx5_ib_multiport_info *mpi; 848 /* To be held when accessing the multiport info */ 849 spinlock_t mpi_lock; 850 }; 851 852 struct mlx5_roce { 853 /* Protect mlx5_ib_get_netdev from invoking dev_hold() with a NULL 854 * netdev pointer 855 */ 856 rwlock_t netdev_lock; 857 struct net_device *netdev; 858 struct notifier_block nb; 859 struct netdev_net_notifier nn; 860 struct notifier_block mdev_nb; 861 struct net_device *tracking_netdev; 862 atomic_t tx_port_affinity; 863 enum ib_port_state last_port_state; 864 struct mlx5_ib_dev *dev; 865 u32 native_port_num; 866 }; 867 868 struct mlx5_ib_port { 869 struct mlx5_ib_counters cnts; 870 struct mlx5_ib_multiport mp; 871 struct mlx5_ib_dbg_cc_params *dbg_cc_params; 872 struct mlx5_roce roce; 873 struct mlx5_eswitch_rep *rep; 874 #ifdef CONFIG_MLX5_MACSEC 875 struct mlx5_reserved_gids *reserved_gids; 876 #endif 877 }; 878 879 struct mlx5_ib_dbg_param { 880 int offset; 881 struct mlx5_ib_dev *dev; 882 struct dentry *dentry; 883 u32 port_num; 884 }; 885 886 enum mlx5_ib_dbg_cc_types { 887 MLX5_IB_DBG_CC_RP_CLAMP_TGT_RATE, 888 MLX5_IB_DBG_CC_RP_CLAMP_TGT_RATE_ATI, 889 MLX5_IB_DBG_CC_RP_TIME_RESET, 890 MLX5_IB_DBG_CC_RP_BYTE_RESET, 891 MLX5_IB_DBG_CC_RP_THRESHOLD, 892 MLX5_IB_DBG_CC_RP_AI_RATE, 893 MLX5_IB_DBG_CC_RP_MAX_RATE, 894 MLX5_IB_DBG_CC_RP_HAI_RATE, 895 MLX5_IB_DBG_CC_RP_MIN_DEC_FAC, 896 MLX5_IB_DBG_CC_RP_MIN_RATE, 897 MLX5_IB_DBG_CC_RP_RATE_TO_SET_ON_FIRST_CNP, 898 MLX5_IB_DBG_CC_RP_DCE_TCP_G, 899 MLX5_IB_DBG_CC_RP_DCE_TCP_RTT, 900 MLX5_IB_DBG_CC_RP_RATE_REDUCE_MONITOR_PERIOD, 901 MLX5_IB_DBG_CC_RP_INITIAL_ALPHA_VALUE, 902 MLX5_IB_DBG_CC_RP_GD, 903 MLX5_IB_DBG_CC_NP_MIN_TIME_BETWEEN_CNPS, 904 MLX5_IB_DBG_CC_NP_CNP_DSCP, 905 MLX5_IB_DBG_CC_NP_CNP_PRIO_MODE, 906 MLX5_IB_DBG_CC_NP_CNP_PRIO, 907 MLX5_IB_DBG_CC_GENERAL_RTT_RESP_DSCP_VALID, 908 MLX5_IB_DBG_CC_GENERAL_RTT_RESP_DSCP, 909 MLX5_IB_DBG_CC_MAX, 910 }; 911 912 struct mlx5_ib_dbg_cc_params { 913 struct dentry *root; 914 struct mlx5_ib_dbg_param params[MLX5_IB_DBG_CC_MAX]; 915 }; 916 917 enum { 918 MLX5_MAX_DELAY_DROP_TIMEOUT_MS = 100, 919 }; 920 921 struct mlx5_ib_delay_drop { 922 struct mlx5_ib_dev *dev; 923 struct work_struct delay_drop_work; 924 /* serialize setting of delay drop */ 925 struct mutex lock; 926 u32 timeout; 927 bool activate; 928 atomic_t events_cnt; 929 atomic_t rqs_cnt; 930 struct dentry *dir_debugfs; 931 }; 932 933 enum mlx5_ib_stages { 934 MLX5_IB_STAGE_INIT, 935 MLX5_IB_STAGE_FS, 936 MLX5_IB_STAGE_CAPS, 937 MLX5_IB_STAGE_NON_DEFAULT_CB, 938 MLX5_IB_STAGE_ROCE, 939 MLX5_IB_STAGE_QP, 940 MLX5_IB_STAGE_SRQ, 941 MLX5_IB_STAGE_DEVICE_RESOURCES, 942 MLX5_IB_STAGE_DEVICE_NOTIFIER, 943 MLX5_IB_STAGE_ODP, 944 MLX5_IB_STAGE_COUNTERS, 945 MLX5_IB_STAGE_CONG_DEBUGFS, 946 MLX5_IB_STAGE_UAR, 947 MLX5_IB_STAGE_BFREG, 948 MLX5_IB_STAGE_PRE_IB_REG_UMR, 949 MLX5_IB_STAGE_WHITELIST_UID, 950 MLX5_IB_STAGE_IB_REG, 951 MLX5_IB_STAGE_POST_IB_REG_UMR, 952 MLX5_IB_STAGE_DELAY_DROP, 953 MLX5_IB_STAGE_RESTRACK, 954 MLX5_IB_STAGE_MAX, 955 }; 956 957 struct mlx5_ib_stage { 958 int (*init)(struct mlx5_ib_dev *dev); 959 void (*cleanup)(struct mlx5_ib_dev *dev); 960 }; 961 962 #define STAGE_CREATE(_stage, _init, _cleanup) \ 963 .stage[_stage] = {.init = _init, .cleanup = _cleanup} 964 965 struct mlx5_ib_profile { 966 struct mlx5_ib_stage stage[MLX5_IB_STAGE_MAX]; 967 }; 968 969 struct mlx5_ib_multiport_info { 970 struct list_head list; 971 struct mlx5_ib_dev *ibdev; 972 struct mlx5_core_dev *mdev; 973 struct notifier_block mdev_events; 974 struct completion unref_comp; 975 u64 sys_image_guid; 976 u32 mdev_refcnt; 977 bool is_master; 978 bool unaffiliate; 979 }; 980 981 struct mlx5_ib_flow_action { 982 struct ib_flow_action ib_action; 983 union { 984 struct { 985 u64 ib_flags; 986 struct mlx5_accel_esp_xfrm *ctx; 987 } esp_aes_gcm; 988 struct { 989 struct mlx5_ib_dev *dev; 990 u32 sub_type; 991 union { 992 struct mlx5_modify_hdr *modify_hdr; 993 struct mlx5_pkt_reformat *pkt_reformat; 994 }; 995 } flow_action_raw; 996 }; 997 }; 998 999 struct mlx5_dm { 1000 struct mlx5_core_dev *dev; 1001 /* This lock is used to protect the access to the shared 1002 * allocation map when concurrent requests by different 1003 * processes are handled. 1004 */ 1005 spinlock_t lock; 1006 DECLARE_BITMAP(memic_alloc_pages, MLX5_MAX_MEMIC_PAGES); 1007 }; 1008 1009 struct mlx5_read_counters_attr { 1010 struct mlx5_fc *hw_cntrs_hndl; 1011 u64 *out; 1012 u32 flags; 1013 }; 1014 1015 enum mlx5_ib_counters_type { 1016 MLX5_IB_COUNTERS_FLOW, 1017 }; 1018 1019 struct mlx5_ib_mcounters { 1020 struct ib_counters ibcntrs; 1021 enum mlx5_ib_counters_type type; 1022 /* number of counters supported for this counters type */ 1023 u32 counters_num; 1024 struct mlx5_fc *hw_cntrs_hndl; 1025 /* read function for this counters type */ 1026 int (*read_counters)(struct ib_device *ibdev, 1027 struct mlx5_read_counters_attr *read_attr); 1028 /* max index set as part of create_flow */ 1029 u32 cntrs_max_index; 1030 /* number of counters data entries (<description,index> pair) */ 1031 u32 ncounters; 1032 /* counters data array for descriptions and indexes */ 1033 struct mlx5_ib_flow_counters_desc *counters_data; 1034 /* protects access to mcounters internal data */ 1035 struct mutex mcntrs_mutex; 1036 }; 1037 1038 static inline struct mlx5_ib_mcounters * 1039 to_mcounters(struct ib_counters *ibcntrs) 1040 { 1041 return container_of(ibcntrs, struct mlx5_ib_mcounters, ibcntrs); 1042 } 1043 1044 int parse_flow_flow_action(struct mlx5_ib_flow_action *maction, 1045 bool is_egress, 1046 struct mlx5_flow_act *action); 1047 struct mlx5_ib_lb_state { 1048 /* protect the user_td */ 1049 struct mutex mutex; 1050 u32 user_td; 1051 int qps; 1052 bool enabled; 1053 }; 1054 1055 struct mlx5_ib_pf_eq { 1056 struct notifier_block irq_nb; 1057 struct mlx5_ib_dev *dev; 1058 struct mlx5_eq *core; 1059 struct work_struct work; 1060 spinlock_t lock; /* Pagefaults spinlock */ 1061 struct workqueue_struct *wq; 1062 mempool_t *pool; 1063 }; 1064 1065 struct mlx5_devx_event_table { 1066 struct mlx5_nb devx_nb; 1067 /* serialize updating the event_xa */ 1068 struct mutex event_xa_lock; 1069 struct xarray event_xa; 1070 }; 1071 1072 struct mlx5_var_table { 1073 /* serialize updating the bitmap */ 1074 struct mutex bitmap_lock; 1075 unsigned long *bitmap; 1076 u64 hw_start_addr; 1077 u32 stride_size; 1078 u64 num_var_hw_entries; 1079 }; 1080 1081 struct mlx5_port_caps { 1082 bool has_smi; 1083 u8 ext_port_cap; 1084 }; 1085 1086 1087 struct mlx5_special_mkeys { 1088 u32 dump_fill_mkey; 1089 __be32 null_mkey; 1090 __be32 terminate_scatter_list_mkey; 1091 }; 1092 1093 struct mlx5_macsec { 1094 struct mutex lock; /* Protects mlx5_macsec internal contexts */ 1095 struct list_head macsec_devices_list; 1096 struct notifier_block blocking_events_nb; 1097 }; 1098 1099 struct mlx5_ib_dev { 1100 struct ib_device ib_dev; 1101 struct mlx5_core_dev *mdev; 1102 struct notifier_block mdev_events; 1103 int num_ports; 1104 /* serialize update of capability mask 1105 */ 1106 struct mutex cap_mask_mutex; 1107 u8 ib_active:1; 1108 u8 is_rep:1; 1109 u8 lag_active:1; 1110 u8 wc_support:1; 1111 u8 fill_delay; 1112 struct umr_common umrc; 1113 /* sync used page count stats 1114 */ 1115 struct mlx5_ib_resources devr; 1116 1117 atomic_t mkey_var; 1118 struct mlx5_mkey_cache cache; 1119 struct timer_list delay_timer; 1120 /* Prevents soft lock on massive reg MRs */ 1121 struct mutex slow_path_mutex; 1122 struct ib_odp_caps odp_caps; 1123 u64 odp_max_size; 1124 struct mutex odp_eq_mutex; 1125 struct mlx5_ib_pf_eq odp_pf_eq; 1126 1127 struct xarray odp_mkeys; 1128 1129 struct mlx5_ib_flow_db *flow_db; 1130 /* protect resources needed as part of reset flow */ 1131 spinlock_t reset_flow_resource_lock; 1132 struct list_head qp_list; 1133 /* Array with num_ports elements */ 1134 struct mlx5_ib_port *port; 1135 struct mlx5_sq_bfreg bfreg; 1136 struct mlx5_sq_bfreg wc_bfreg; 1137 struct mlx5_sq_bfreg fp_bfreg; 1138 struct mlx5_ib_delay_drop delay_drop; 1139 const struct mlx5_ib_profile *profile; 1140 1141 struct mlx5_ib_lb_state lb; 1142 u8 umr_fence; 1143 struct list_head ib_dev_list; 1144 u64 sys_image_guid; 1145 struct mlx5_dm dm; 1146 u16 devx_whitelist_uid; 1147 struct mlx5_srq_table srq_table; 1148 struct mlx5_qp_table qp_table; 1149 struct mlx5_async_ctx async_ctx; 1150 struct mlx5_devx_event_table devx_event_table; 1151 struct mlx5_var_table var_table; 1152 1153 struct xarray sig_mrs; 1154 struct mlx5_port_caps port_caps[MLX5_MAX_PORTS]; 1155 u16 pkey_table_len; 1156 u8 lag_ports; 1157 struct mlx5_special_mkeys mkeys; 1158 1159 #ifdef CONFIG_MLX5_MACSEC 1160 struct mlx5_macsec macsec; 1161 #endif 1162 }; 1163 1164 static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq) 1165 { 1166 return container_of(mcq, struct mlx5_ib_cq, mcq); 1167 } 1168 1169 static inline struct mlx5_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd) 1170 { 1171 return container_of(ibxrcd, struct mlx5_ib_xrcd, ibxrcd); 1172 } 1173 1174 static inline struct mlx5_ib_dev *to_mdev(struct ib_device *ibdev) 1175 { 1176 return container_of(ibdev, struct mlx5_ib_dev, ib_dev); 1177 } 1178 1179 static inline struct mlx5_ib_dev *mr_to_mdev(struct mlx5_ib_mr *mr) 1180 { 1181 return to_mdev(mr->ibmr.device); 1182 } 1183 1184 static inline struct mlx5_ib_dev *mlx5_udata_to_mdev(struct ib_udata *udata) 1185 { 1186 struct mlx5_ib_ucontext *context = rdma_udata_to_drv_context( 1187 udata, struct mlx5_ib_ucontext, ibucontext); 1188 1189 return to_mdev(context->ibucontext.device); 1190 } 1191 1192 static inline struct mlx5_ib_cq *to_mcq(struct ib_cq *ibcq) 1193 { 1194 return container_of(ibcq, struct mlx5_ib_cq, ibcq); 1195 } 1196 1197 static inline struct mlx5_ib_qp *to_mibqp(struct mlx5_core_qp *mqp) 1198 { 1199 return container_of(mqp, struct mlx5_ib_qp_base, mqp)->container_mibqp; 1200 } 1201 1202 static inline struct mlx5_ib_rwq *to_mibrwq(struct mlx5_core_qp *core_qp) 1203 { 1204 return container_of(core_qp, struct mlx5_ib_rwq, core_qp); 1205 } 1206 1207 static inline struct mlx5_ib_pd *to_mpd(struct ib_pd *ibpd) 1208 { 1209 return container_of(ibpd, struct mlx5_ib_pd, ibpd); 1210 } 1211 1212 static inline struct mlx5_ib_srq *to_msrq(struct ib_srq *ibsrq) 1213 { 1214 return container_of(ibsrq, struct mlx5_ib_srq, ibsrq); 1215 } 1216 1217 static inline struct mlx5_ib_qp *to_mqp(struct ib_qp *ibqp) 1218 { 1219 return container_of(ibqp, struct mlx5_ib_qp, ibqp); 1220 } 1221 1222 static inline struct mlx5_ib_rwq *to_mrwq(struct ib_wq *ibwq) 1223 { 1224 return container_of(ibwq, struct mlx5_ib_rwq, ibwq); 1225 } 1226 1227 static inline struct mlx5_ib_rwq_ind_table *to_mrwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl) 1228 { 1229 return container_of(ib_rwq_ind_tbl, struct mlx5_ib_rwq_ind_table, ib_rwq_ind_tbl); 1230 } 1231 1232 static inline struct mlx5_ib_srq *to_mibsrq(struct mlx5_core_srq *msrq) 1233 { 1234 return container_of(msrq, struct mlx5_ib_srq, msrq); 1235 } 1236 1237 static inline struct mlx5_ib_mr *to_mmr(struct ib_mr *ibmr) 1238 { 1239 return container_of(ibmr, struct mlx5_ib_mr, ibmr); 1240 } 1241 1242 static inline struct mlx5_ib_mw *to_mmw(struct ib_mw *ibmw) 1243 { 1244 return container_of(ibmw, struct mlx5_ib_mw, ibmw); 1245 } 1246 1247 static inline struct mlx5_ib_flow_action * 1248 to_mflow_act(struct ib_flow_action *ibact) 1249 { 1250 return container_of(ibact, struct mlx5_ib_flow_action, ib_action); 1251 } 1252 1253 static inline struct mlx5_user_mmap_entry * 1254 to_mmmap(struct rdma_user_mmap_entry *rdma_entry) 1255 { 1256 return container_of(rdma_entry, 1257 struct mlx5_user_mmap_entry, rdma_entry); 1258 } 1259 1260 int mlx5_ib_db_map_user(struct mlx5_ib_ucontext *context, unsigned long virt, 1261 struct mlx5_db *db); 1262 void mlx5_ib_db_unmap_user(struct mlx5_ib_ucontext *context, struct mlx5_db *db); 1263 void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq); 1264 void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq); 1265 void mlx5_ib_free_srq_wqe(struct mlx5_ib_srq *srq, int wqe_index); 1266 int mlx5_ib_create_ah(struct ib_ah *ah, struct rdma_ah_init_attr *init_attr, 1267 struct ib_udata *udata); 1268 int mlx5_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr); 1269 static inline int mlx5_ib_destroy_ah(struct ib_ah *ah, u32 flags) 1270 { 1271 return 0; 1272 } 1273 int mlx5_ib_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr, 1274 struct ib_udata *udata); 1275 int mlx5_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, 1276 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata); 1277 int mlx5_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr); 1278 int mlx5_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata); 1279 int mlx5_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr, 1280 const struct ib_recv_wr **bad_wr); 1281 int mlx5_ib_enable_lb(struct mlx5_ib_dev *dev, bool td, bool qp); 1282 void mlx5_ib_disable_lb(struct mlx5_ib_dev *dev, bool td, bool qp); 1283 int mlx5_ib_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *init_attr, 1284 struct ib_udata *udata); 1285 int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 1286 int attr_mask, struct ib_udata *udata); 1287 int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, 1288 struct ib_qp_init_attr *qp_init_attr); 1289 int mlx5_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata); 1290 void mlx5_ib_drain_sq(struct ib_qp *qp); 1291 void mlx5_ib_drain_rq(struct ib_qp *qp); 1292 int mlx5_ib_read_wqe_sq(struct mlx5_ib_qp *qp, int wqe_index, void *buffer, 1293 size_t buflen, size_t *bc); 1294 int mlx5_ib_read_wqe_rq(struct mlx5_ib_qp *qp, int wqe_index, void *buffer, 1295 size_t buflen, size_t *bc); 1296 int mlx5_ib_read_wqe_srq(struct mlx5_ib_srq *srq, int wqe_index, void *buffer, 1297 size_t buflen, size_t *bc); 1298 int mlx5_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, 1299 struct ib_udata *udata); 1300 int mlx5_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata); 1301 int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); 1302 int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags); 1303 int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); 1304 int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata); 1305 struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc); 1306 struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 1307 u64 virt_addr, int access_flags, 1308 struct ib_udata *udata); 1309 struct ib_mr *mlx5_ib_reg_user_mr_dmabuf(struct ib_pd *pd, u64 start, 1310 u64 length, u64 virt_addr, 1311 int fd, int access_flags, 1312 struct ib_udata *udata); 1313 int mlx5_ib_advise_mr(struct ib_pd *pd, 1314 enum ib_uverbs_advise_mr_advice advice, 1315 u32 flags, 1316 struct ib_sge *sg_list, 1317 u32 num_sge, 1318 struct uverbs_attr_bundle *attrs); 1319 int mlx5_ib_alloc_mw(struct ib_mw *mw, struct ib_udata *udata); 1320 int mlx5_ib_dealloc_mw(struct ib_mw *mw); 1321 struct mlx5_ib_mr *mlx5_ib_alloc_implicit_mr(struct mlx5_ib_pd *pd, 1322 int access_flags); 1323 void mlx5_ib_free_implicit_mr(struct mlx5_ib_mr *mr); 1324 void mlx5_ib_free_odp_mr(struct mlx5_ib_mr *mr); 1325 struct ib_mr *mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start, 1326 u64 length, u64 virt_addr, int access_flags, 1327 struct ib_pd *pd, struct ib_udata *udata); 1328 int mlx5_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata); 1329 struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, 1330 u32 max_num_sg); 1331 struct ib_mr *mlx5_ib_alloc_mr_integrity(struct ib_pd *pd, 1332 u32 max_num_sg, 1333 u32 max_num_meta_sg); 1334 int mlx5_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents, 1335 unsigned int *sg_offset); 1336 int mlx5_ib_map_mr_sg_pi(struct ib_mr *ibmr, struct scatterlist *data_sg, 1337 int data_sg_nents, unsigned int *data_sg_offset, 1338 struct scatterlist *meta_sg, int meta_sg_nents, 1339 unsigned int *meta_sg_offset); 1340 int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num, 1341 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 1342 const struct ib_mad *in, struct ib_mad *out, 1343 size_t *out_mad_size, u16 *out_mad_pkey_index); 1344 int mlx5_ib_alloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); 1345 int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); 1346 int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, unsigned int port); 1347 int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev, 1348 __be64 *sys_image_guid); 1349 int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev, 1350 u16 *max_pkeys); 1351 int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev, 1352 u32 *vendor_id); 1353 int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc); 1354 int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid); 1355 int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u32 port, u16 index, 1356 u16 *pkey); 1357 int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u32 port, int index, 1358 union ib_gid *gid); 1359 int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u32 port, 1360 struct ib_port_attr *props); 1361 int mlx5_ib_query_port(struct ib_device *ibdev, u32 port, 1362 struct ib_port_attr *props); 1363 void mlx5_ib_populate_pas(struct ib_umem *umem, size_t page_size, __be64 *pas, 1364 u64 access_flags); 1365 void mlx5_ib_copy_pas(u64 *old, u64 *new, int step, int num); 1366 int mlx5_ib_get_cqe_size(struct ib_cq *ibcq); 1367 int mlx5_mkey_cache_init(struct mlx5_ib_dev *dev); 1368 void mlx5_mkey_cache_cleanup(struct mlx5_ib_dev *dev); 1369 struct mlx5_cache_ent * 1370 mlx5r_cache_create_ent_locked(struct mlx5_ib_dev *dev, 1371 struct mlx5r_cache_rb_key rb_key, 1372 bool persistent_entry); 1373 1374 struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, 1375 int access_flags, int access_mode, 1376 int ndescs); 1377 1378 int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask, 1379 struct ib_mr_status *mr_status); 1380 struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd, 1381 struct ib_wq_init_attr *init_attr, 1382 struct ib_udata *udata); 1383 int mlx5_ib_destroy_wq(struct ib_wq *wq, struct ib_udata *udata); 1384 int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr, 1385 u32 wq_attr_mask, struct ib_udata *udata); 1386 int mlx5_ib_create_rwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_table, 1387 struct ib_rwq_ind_table_init_attr *init_attr, 1388 struct ib_udata *udata); 1389 int mlx5_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table); 1390 struct ib_mr *mlx5_ib_reg_dm_mr(struct ib_pd *pd, struct ib_dm *dm, 1391 struct ib_dm_mr_attr *attr, 1392 struct uverbs_attr_bundle *attrs); 1393 1394 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 1395 int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev); 1396 int mlx5r_odp_create_eq(struct mlx5_ib_dev *dev, struct mlx5_ib_pf_eq *eq); 1397 void mlx5_ib_odp_cleanup_one(struct mlx5_ib_dev *ibdev); 1398 int __init mlx5_ib_odp_init(void); 1399 void mlx5_ib_odp_cleanup(void); 1400 int mlx5_odp_init_mkey_cache(struct mlx5_ib_dev *dev); 1401 void mlx5_odp_populate_xlt(void *xlt, size_t idx, size_t nentries, 1402 struct mlx5_ib_mr *mr, int flags); 1403 1404 int mlx5_ib_advise_mr_prefetch(struct ib_pd *pd, 1405 enum ib_uverbs_advise_mr_advice advice, 1406 u32 flags, struct ib_sge *sg_list, u32 num_sge); 1407 int mlx5_ib_init_odp_mr(struct mlx5_ib_mr *mr); 1408 int mlx5_ib_init_dmabuf_mr(struct mlx5_ib_mr *mr); 1409 #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ 1410 static inline int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev) { return 0; } 1411 static inline int mlx5r_odp_create_eq(struct mlx5_ib_dev *dev, 1412 struct mlx5_ib_pf_eq *eq) 1413 { 1414 return 0; 1415 } 1416 static inline void mlx5_ib_odp_cleanup_one(struct mlx5_ib_dev *ibdev) {} 1417 static inline int mlx5_ib_odp_init(void) { return 0; } 1418 static inline void mlx5_ib_odp_cleanup(void) {} 1419 static inline int mlx5_odp_init_mkey_cache(struct mlx5_ib_dev *dev) 1420 { 1421 return 0; 1422 } 1423 static inline void mlx5_odp_populate_xlt(void *xlt, size_t idx, size_t nentries, 1424 struct mlx5_ib_mr *mr, int flags) {} 1425 1426 static inline int 1427 mlx5_ib_advise_mr_prefetch(struct ib_pd *pd, 1428 enum ib_uverbs_advise_mr_advice advice, u32 flags, 1429 struct ib_sge *sg_list, u32 num_sge) 1430 { 1431 return -EOPNOTSUPP; 1432 } 1433 static inline int mlx5_ib_init_odp_mr(struct mlx5_ib_mr *mr) 1434 { 1435 return -EOPNOTSUPP; 1436 } 1437 static inline int mlx5_ib_init_dmabuf_mr(struct mlx5_ib_mr *mr) 1438 { 1439 return -EOPNOTSUPP; 1440 } 1441 #endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ 1442 1443 extern const struct mmu_interval_notifier_ops mlx5_mn_ops; 1444 1445 /* Needed for rep profile */ 1446 void __mlx5_ib_remove(struct mlx5_ib_dev *dev, 1447 const struct mlx5_ib_profile *profile, 1448 int stage); 1449 int __mlx5_ib_add(struct mlx5_ib_dev *dev, 1450 const struct mlx5_ib_profile *profile); 1451 1452 int mlx5_ib_get_vf_config(struct ib_device *device, int vf, 1453 u32 port, struct ifla_vf_info *info); 1454 int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf, 1455 u32 port, int state); 1456 int mlx5_ib_get_vf_stats(struct ib_device *device, int vf, 1457 u32 port, struct ifla_vf_stats *stats); 1458 int mlx5_ib_get_vf_guid(struct ib_device *device, int vf, u32 port, 1459 struct ifla_vf_guid *node_guid, 1460 struct ifla_vf_guid *port_guid); 1461 int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u32 port, 1462 u64 guid, int type); 1463 1464 __be16 mlx5_get_roce_udp_sport_min(const struct mlx5_ib_dev *dev, 1465 const struct ib_gid_attr *attr); 1466 1467 void mlx5_ib_cleanup_cong_debugfs(struct mlx5_ib_dev *dev, u32 port_num); 1468 void mlx5_ib_init_cong_debugfs(struct mlx5_ib_dev *dev, u32 port_num); 1469 1470 /* GSI QP helper functions */ 1471 int mlx5_ib_create_gsi(struct ib_pd *pd, struct mlx5_ib_qp *mqp, 1472 struct ib_qp_init_attr *attr); 1473 int mlx5_ib_destroy_gsi(struct mlx5_ib_qp *mqp); 1474 int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr, 1475 int attr_mask); 1476 int mlx5_ib_gsi_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr, 1477 int qp_attr_mask, 1478 struct ib_qp_init_attr *qp_init_attr); 1479 int mlx5_ib_gsi_post_send(struct ib_qp *qp, const struct ib_send_wr *wr, 1480 const struct ib_send_wr **bad_wr); 1481 int mlx5_ib_gsi_post_recv(struct ib_qp *qp, const struct ib_recv_wr *wr, 1482 const struct ib_recv_wr **bad_wr); 1483 void mlx5_ib_gsi_pkey_change(struct mlx5_ib_gsi_qp *gsi); 1484 1485 int mlx5_ib_generate_wc(struct ib_cq *ibcq, struct ib_wc *wc); 1486 1487 void mlx5_ib_free_bfreg(struct mlx5_ib_dev *dev, struct mlx5_bfreg_info *bfregi, 1488 int bfregn); 1489 struct mlx5_ib_dev *mlx5_ib_get_ibdev_from_mpi(struct mlx5_ib_multiport_info *mpi); 1490 struct mlx5_core_dev *mlx5_ib_get_native_port_mdev(struct mlx5_ib_dev *dev, 1491 u32 ib_port_num, 1492 u32 *native_port_num); 1493 void mlx5_ib_put_native_port_mdev(struct mlx5_ib_dev *dev, 1494 u32 port_num); 1495 1496 extern const struct uapi_definition mlx5_ib_devx_defs[]; 1497 extern const struct uapi_definition mlx5_ib_flow_defs[]; 1498 extern const struct uapi_definition mlx5_ib_qos_defs[]; 1499 extern const struct uapi_definition mlx5_ib_std_types_defs[]; 1500 1501 static inline int is_qp1(enum ib_qp_type qp_type) 1502 { 1503 return qp_type == MLX5_IB_QPT_HW_GSI || qp_type == IB_QPT_GSI; 1504 } 1505 1506 static inline u32 check_cq_create_flags(u32 flags) 1507 { 1508 /* 1509 * It returns non-zero value for unsupported CQ 1510 * create flags, otherwise it returns zero. 1511 */ 1512 return (flags & ~(IB_UVERBS_CQ_FLAGS_IGNORE_OVERRUN | 1513 IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION)); 1514 } 1515 1516 static inline int verify_assign_uidx(u8 cqe_version, u32 cmd_uidx, 1517 u32 *user_index) 1518 { 1519 if (cqe_version) { 1520 if ((cmd_uidx == MLX5_IB_DEFAULT_UIDX) || 1521 (cmd_uidx & ~MLX5_USER_ASSIGNED_UIDX_MASK)) 1522 return -EINVAL; 1523 *user_index = cmd_uidx; 1524 } else { 1525 *user_index = MLX5_IB_DEFAULT_UIDX; 1526 } 1527 1528 return 0; 1529 } 1530 1531 static inline int get_qp_user_index(struct mlx5_ib_ucontext *ucontext, 1532 struct mlx5_ib_create_qp *ucmd, 1533 int inlen, 1534 u32 *user_index) 1535 { 1536 u8 cqe_version = ucontext->cqe_version; 1537 1538 if ((offsetofend(typeof(*ucmd), uidx) <= inlen) && !cqe_version && 1539 (ucmd->uidx == MLX5_IB_DEFAULT_UIDX)) 1540 return 0; 1541 1542 if ((offsetofend(typeof(*ucmd), uidx) <= inlen) != !!cqe_version) 1543 return -EINVAL; 1544 1545 return verify_assign_uidx(cqe_version, ucmd->uidx, user_index); 1546 } 1547 1548 static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext, 1549 struct mlx5_ib_create_srq *ucmd, 1550 int inlen, 1551 u32 *user_index) 1552 { 1553 u8 cqe_version = ucontext->cqe_version; 1554 1555 if ((offsetofend(typeof(*ucmd), uidx) <= inlen) && !cqe_version && 1556 (ucmd->uidx == MLX5_IB_DEFAULT_UIDX)) 1557 return 0; 1558 1559 if ((offsetofend(typeof(*ucmd), uidx) <= inlen) != !!cqe_version) 1560 return -EINVAL; 1561 1562 return verify_assign_uidx(cqe_version, ucmd->uidx, user_index); 1563 } 1564 1565 static inline int get_uars_per_sys_page(struct mlx5_ib_dev *dev, bool lib_support) 1566 { 1567 return lib_support && MLX5_CAP_GEN(dev->mdev, uar_4k) ? 1568 MLX5_UARS_IN_PAGE : 1; 1569 } 1570 1571 extern void *xlt_emergency_page; 1572 1573 int bfregn_to_uar_index(struct mlx5_ib_dev *dev, 1574 struct mlx5_bfreg_info *bfregi, u32 bfregn, 1575 bool dyn_bfreg); 1576 1577 static inline int mlx5r_store_odp_mkey(struct mlx5_ib_dev *dev, 1578 struct mlx5_ib_mkey *mmkey) 1579 { 1580 refcount_set(&mmkey->usecount, 1); 1581 1582 return xa_err(xa_store(&dev->odp_mkeys, mlx5_base_mkey(mmkey->key), 1583 mmkey, GFP_KERNEL)); 1584 } 1585 1586 /* deref an mkey that can participate in ODP flow */ 1587 static inline void mlx5r_deref_odp_mkey(struct mlx5_ib_mkey *mmkey) 1588 { 1589 if (refcount_dec_and_test(&mmkey->usecount)) 1590 wake_up(&mmkey->wait); 1591 } 1592 1593 /* deref an mkey that can participate in ODP flow and wait for relese */ 1594 static inline void mlx5r_deref_wait_odp_mkey(struct mlx5_ib_mkey *mmkey) 1595 { 1596 mlx5r_deref_odp_mkey(mmkey); 1597 wait_event(mmkey->wait, refcount_read(&mmkey->usecount) == 0); 1598 } 1599 1600 int mlx5_ib_test_wc(struct mlx5_ib_dev *dev); 1601 1602 static inline bool mlx5_ib_lag_should_assign_affinity(struct mlx5_ib_dev *dev) 1603 { 1604 /* 1605 * If the driver is in hash mode and the port_select_flow_table_bypass cap 1606 * is supported, it means that the driver no longer needs to assign the port 1607 * affinity by default. If a user wants to set the port affinity explicitly, 1608 * the user has a dedicated API to do that, so there is no need to assign 1609 * the port affinity by default. 1610 */ 1611 if (dev->lag_active && 1612 mlx5_lag_mode_is_hash(dev->mdev) && 1613 MLX5_CAP_PORT_SELECTION(dev->mdev, port_select_flow_table_bypass)) 1614 return 0; 1615 1616 if (mlx5_lag_is_lacp_owner(dev->mdev) && !dev->lag_active) 1617 return 0; 1618 1619 return dev->lag_active || 1620 (MLX5_CAP_GEN(dev->mdev, num_lag_ports) > 1 && 1621 MLX5_CAP_GEN(dev->mdev, lag_tx_port_affinity)); 1622 } 1623 1624 static inline bool rt_supported(int ts_cap) 1625 { 1626 return ts_cap == MLX5_TIMESTAMP_FORMAT_CAP_REAL_TIME || 1627 ts_cap == MLX5_TIMESTAMP_FORMAT_CAP_FREE_RUNNING_AND_REAL_TIME; 1628 } 1629 1630 /* 1631 * PCI Peer to Peer is a trainwreck. If no switch is present then things 1632 * sometimes work, depending on the pci_distance_p2p logic for excluding broken 1633 * root complexes. However if a switch is present in the path, then things get 1634 * really ugly depending on how the switch is setup. This table assumes that the 1635 * root complex is strict and is validating that all req/reps are matches 1636 * perfectly - so any scenario where it sees only half the transaction is a 1637 * failure. 1638 * 1639 * CR/RR/DT ATS RO P2P 1640 * 00X X X OK 1641 * 010 X X fails (request is routed to root but root never sees comp) 1642 * 011 0 X fails (request is routed to root but root never sees comp) 1643 * 011 1 X OK 1644 * 10X X 1 OK 1645 * 101 X 0 fails (completion is routed to root but root didn't see req) 1646 * 110 X 0 SLOW 1647 * 111 0 0 SLOW 1648 * 111 1 0 fails (completion is routed to root but root didn't see req) 1649 * 111 1 1 OK 1650 * 1651 * Unfortunately we cannot reliably know if a switch is present or what the 1652 * CR/RR/DT ACS settings are, as in a VM that is all hidden. Assume that 1653 * CR/RR/DT is 111 if the ATS cap is enabled and follow the last three rows. 1654 * 1655 * For now assume if the umem is a dma_buf then it is P2P. 1656 */ 1657 static inline bool mlx5_umem_needs_ats(struct mlx5_ib_dev *dev, 1658 struct ib_umem *umem, int access_flags) 1659 { 1660 if (!MLX5_CAP_GEN(dev->mdev, ats) || !umem->is_dmabuf) 1661 return false; 1662 return access_flags & IB_ACCESS_RELAXED_ORDERING; 1663 } 1664 1665 int set_roce_addr(struct mlx5_ib_dev *dev, u32 port_num, 1666 unsigned int index, const union ib_gid *gid, 1667 const struct ib_gid_attr *attr); 1668 #endif /* MLX5_IB_H */ 1669