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 50static __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 77static __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 */ 93unsigned 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 118enum { 119 MLX5_IB_MMAP_OFFSET_START = 9, 120 MLX5_IB_MMAP_OFFSET_END = 255, 121}; 122 123enum { 124 MLX5_IB_MMAP_CMD_SHIFT = 8, 125 MLX5_IB_MMAP_CMD_MASK = 0xff, 126}; 127 128enum { 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 135enum 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 141enum { 142 MLX5_CROSS_CHANNEL_BFREG = 0, 143}; 144 145enum { 146 MLX5_CQE_VERSION_V0, 147 MLX5_CQE_VERSION_V1, 148}; 149 150enum { 151 MLX5_TM_MAX_RNDV_MSG_SIZE = 64, 152 MLX5_TM_MAX_SGE = 1, 153}; 154 155enum { 156 MLX5_IB_INVALID_UAR_INDEX = BIT(31), 157 MLX5_IB_INVALID_BFREG = BIT(31), 158}; 159 160enum { 161 MLX5_MAX_MEMIC_PAGES = 0x100, 162 MLX5_MEMIC_ALLOC_SIZE_MASK = 0x3f, 163}; 164 165enum { 166 MLX5_MEMIC_BASE_ALIGN = 6, 167 MLX5_MEMIC_BASE_SIZE = 1 << MLX5_MEMIC_BASE_ALIGN, 168}; 169 170enum 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 178struct 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 196struct 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 214static inline struct mlx5_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext) 215{ 216 return container_of(ibucontext, struct mlx5_ib_ucontext, ibucontext); 217} 218 219struct mlx5_ib_pd { 220 struct ib_pd ibpd; 221 u32 pdn; 222 u16 uid; 223}; 224 225enum { 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 243struct 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 252struct mlx5_ib_flow_prio { 253 struct mlx5_flow_table *flow_table; 254 struct mlx5_ib_anchor anchor; 255 unsigned int refcount; 256}; 257 258struct 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 268struct 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 279struct mlx5_ib_steering_anchor { 280 struct mlx5_ib_flow_prio *ft_prio; 281 struct mlx5_ib_dev *dev; 282 atomic_t usecnt; 283}; 284 285struct mlx5_ib_pp { 286 u16 index; 287 struct mlx5_core_dev *mdev; 288}; 289 290enum 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 298struct 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 346struct wr_list { 347 u16 opcode; 348 u16 next; 349}; 350 351enum mlx5_ib_rq_flags { 352 MLX5_IB_RQ_CVLAN_STRIPPING = 1 << 0, 353 MLX5_IB_RQ_PCI_WRITE_END_PADDING = 1 << 1, 354}; 355 356struct 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 379enum 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 390struct 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 412struct mlx5_ib_rwq_ind_table { 413 struct ib_rwq_ind_table ib_rwq_ind_tbl; 414 u32 rqtn; 415 u16 uid; 416}; 417 418struct mlx5_ib_ubuffer { 419 struct ib_umem *umem; 420 int buf_size; 421 u64 buf_addr; 422}; 423 424struct 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 430struct 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 438struct mlx5_ib_rss_qp { 439 u32 tirn; 440}; 441 442struct 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 452struct 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 462struct mlx5_ib_raw_packet_qp { 463 struct mlx5_ib_sq sq; 464 struct mlx5_ib_rq rq; 465}; 466 467struct mlx5_bf { 468 int buf_size; 469 unsigned long offset; 470 struct mlx5_sq_bfreg *bfreg; 471}; 472 473struct mlx5_ib_dct { 474 struct mlx5_core_dct mdct; 475 u32 *in; 476}; 477 478struct 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 494struct 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 547struct 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 555enum 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 560struct 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 585struct mlx5_ib_wc { 586 struct ib_wc wc; 587 struct list_head list; 588}; 589 590struct 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 610struct mlx5_ib_xrcd { 611 struct ib_xrcd ibxrcd; 612 u32 xrcdn; 613}; 614 615enum mlx5_ib_mtt_access_flags { 616 MLX5_IB_MTT_READ = (1 << 0), 617 MLX5_IB_MTT_WRITE = (1 << 1), 618}; 619 620struct 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 627enum mlx5_mkey_type { 628 MLX5_MKEY_MR = 1, 629 MLX5_MKEY_MW, 630 MLX5_MKEY_INDIRECT_DEVX, 631}; 632 633struct mlx5r_cache_rb_key { 634 u8 ats:1; 635 unsigned int access_mode; 636 unsigned int access_flags; 637 unsigned int ndescs; 638}; 639 640struct 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 667struct 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 713static 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 719static 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 725struct mlx5_ib_mw { 726 struct ib_mw ibmw; 727 struct mlx5_ib_mkey mmkey; 728}; 729 730struct mlx5_ib_umr_context { 731 struct ib_cqe cqe; 732 enum ib_wc_status status; 733 struct completion done; 734}; 735 736enum { 737 MLX5_UMR_STATE_UNINIT, 738 MLX5_UMR_STATE_ACTIVE, 739 MLX5_UMR_STATE_RECOVER, 740 MLX5_UMR_STATE_ERR, 741}; 742 743struct 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#define NUM_MKEYS_PER_PAGE \ 757 ((PAGE_SIZE - sizeof(struct list_head)) / sizeof(u32)) 758 759struct mlx5_mkeys_page { 760 u32 mkeys[NUM_MKEYS_PER_PAGE]; 761 struct list_head list; 762}; 763static_assert(sizeof(struct mlx5_mkeys_page) == PAGE_SIZE); 764 765struct mlx5_mkeys_queue { 766 struct list_head pages_list; 767 u32 num_pages; 768 unsigned long ci; 769 spinlock_t lock; /* sync list ops */ 770}; 771 772struct mlx5_cache_ent { 773 struct mlx5_mkeys_queue mkeys_queue; 774 u32 pending; 775 776 char name[4]; 777 778 struct rb_node node; 779 struct mlx5r_cache_rb_key rb_key; 780 781 u8 is_tmp:1; 782 u8 disabled:1; 783 u8 fill_to_high_water:1; 784 785 /* 786 * - limit is the low water mark for stored mkeys, 2* limit is the 787 * upper water mark. 788 */ 789 u32 in_use; 790 u32 limit; 791 792 /* Statistics */ 793 u32 miss; 794 795 struct mlx5_ib_dev *dev; 796 struct delayed_work dwork; 797}; 798 799struct mlx5r_async_create_mkey { 800 union { 801 u32 in[MLX5_ST_SZ_BYTES(create_mkey_in)]; 802 u32 out[MLX5_ST_SZ_DW(create_mkey_out)]; 803 }; 804 struct mlx5_async_work cb_work; 805 struct mlx5_cache_ent *ent; 806 u32 mkey; 807}; 808 809struct mlx5_mkey_cache { 810 struct workqueue_struct *wq; 811 struct rb_root rb_root; 812 struct mutex rb_lock; 813 struct dentry *fs_root; 814 unsigned long last_add; 815 struct delayed_work remove_ent_dwork; 816}; 817 818struct mlx5_ib_port_resources { 819 struct mlx5_ib_gsi_qp *gsi; 820 struct work_struct pkey_change_work; 821}; 822 823struct mlx5_ib_resources { 824 struct ib_cq *c0; 825 u32 xrcdn0; 826 u32 xrcdn1; 827 struct ib_pd *p0; 828 struct ib_srq *s0; 829 struct ib_srq *s1; 830 struct mlx5_ib_port_resources ports[2]; 831}; 832 833#define MAX_OPFC_RULES 2 834 835struct mlx5_ib_op_fc { 836 struct mlx5_fc *fc; 837 struct mlx5_flow_handle *rule[MAX_OPFC_RULES]; 838}; 839 840struct mlx5_ib_counters { 841 struct rdma_stat_desc *descs; 842 size_t *offsets; 843 u32 num_q_counters; 844 u32 num_cong_counters; 845 u32 num_ext_ppcnt_counters; 846 u32 num_op_counters; 847 u16 set_id; 848 struct mlx5_ib_op_fc opfcs[MLX5_IB_OPCOUNTER_MAX]; 849}; 850 851int mlx5_ib_fs_add_op_fc(struct mlx5_ib_dev *dev, u32 port_num, 852 struct mlx5_ib_op_fc *opfc, 853 enum mlx5_ib_optional_counter_type type); 854 855void mlx5_ib_fs_remove_op_fc(struct mlx5_ib_dev *dev, 856 struct mlx5_ib_op_fc *opfc, 857 enum mlx5_ib_optional_counter_type type); 858 859struct mlx5_ib_multiport_info; 860 861struct mlx5_ib_multiport { 862 struct mlx5_ib_multiport_info *mpi; 863 /* To be held when accessing the multiport info */ 864 spinlock_t mpi_lock; 865}; 866 867struct mlx5_roce { 868 /* Protect mlx5_ib_get_netdev from invoking dev_hold() with a NULL 869 * netdev pointer 870 */ 871 rwlock_t netdev_lock; 872 struct net_device *netdev; 873 struct notifier_block nb; 874 struct netdev_net_notifier nn; 875 struct notifier_block mdev_nb; 876 struct net_device *tracking_netdev; 877 atomic_t tx_port_affinity; 878 enum ib_port_state last_port_state; 879 struct mlx5_ib_dev *dev; 880 u32 native_port_num; 881}; 882 883struct mlx5_ib_port { 884 struct mlx5_ib_counters cnts; 885 struct mlx5_ib_multiport mp; 886 struct mlx5_ib_dbg_cc_params *dbg_cc_params; 887 struct mlx5_roce roce; 888 struct mlx5_eswitch_rep *rep; 889#ifdef CONFIG_MLX5_MACSEC 890 struct mlx5_reserved_gids *reserved_gids; 891#endif 892}; 893 894struct mlx5_ib_dbg_param { 895 int offset; 896 struct mlx5_ib_dev *dev; 897 struct dentry *dentry; 898 u32 port_num; 899}; 900 901enum mlx5_ib_dbg_cc_types { 902 MLX5_IB_DBG_CC_RP_CLAMP_TGT_RATE, 903 MLX5_IB_DBG_CC_RP_CLAMP_TGT_RATE_ATI, 904 MLX5_IB_DBG_CC_RP_TIME_RESET, 905 MLX5_IB_DBG_CC_RP_BYTE_RESET, 906 MLX5_IB_DBG_CC_RP_THRESHOLD, 907 MLX5_IB_DBG_CC_RP_AI_RATE, 908 MLX5_IB_DBG_CC_RP_MAX_RATE, 909 MLX5_IB_DBG_CC_RP_HAI_RATE, 910 MLX5_IB_DBG_CC_RP_MIN_DEC_FAC, 911 MLX5_IB_DBG_CC_RP_MIN_RATE, 912 MLX5_IB_DBG_CC_RP_RATE_TO_SET_ON_FIRST_CNP, 913 MLX5_IB_DBG_CC_RP_DCE_TCP_G, 914 MLX5_IB_DBG_CC_RP_DCE_TCP_RTT, 915 MLX5_IB_DBG_CC_RP_RATE_REDUCE_MONITOR_PERIOD, 916 MLX5_IB_DBG_CC_RP_INITIAL_ALPHA_VALUE, 917 MLX5_IB_DBG_CC_RP_GD, 918 MLX5_IB_DBG_CC_NP_MIN_TIME_BETWEEN_CNPS, 919 MLX5_IB_DBG_CC_NP_CNP_DSCP, 920 MLX5_IB_DBG_CC_NP_CNP_PRIO_MODE, 921 MLX5_IB_DBG_CC_NP_CNP_PRIO, 922 MLX5_IB_DBG_CC_GENERAL_RTT_RESP_DSCP_VALID, 923 MLX5_IB_DBG_CC_GENERAL_RTT_RESP_DSCP, 924 MLX5_IB_DBG_CC_MAX, 925}; 926 927struct mlx5_ib_dbg_cc_params { 928 struct dentry *root; 929 struct mlx5_ib_dbg_param params[MLX5_IB_DBG_CC_MAX]; 930}; 931 932enum { 933 MLX5_MAX_DELAY_DROP_TIMEOUT_MS = 100, 934}; 935 936struct mlx5_ib_delay_drop { 937 struct mlx5_ib_dev *dev; 938 struct work_struct delay_drop_work; 939 /* serialize setting of delay drop */ 940 struct mutex lock; 941 u32 timeout; 942 bool activate; 943 atomic_t events_cnt; 944 atomic_t rqs_cnt; 945 struct dentry *dir_debugfs; 946}; 947 948enum mlx5_ib_stages { 949 MLX5_IB_STAGE_INIT, 950 MLX5_IB_STAGE_FS, 951 MLX5_IB_STAGE_CAPS, 952 MLX5_IB_STAGE_NON_DEFAULT_CB, 953 MLX5_IB_STAGE_ROCE, 954 MLX5_IB_STAGE_QP, 955 MLX5_IB_STAGE_SRQ, 956 MLX5_IB_STAGE_DEVICE_RESOURCES, 957 MLX5_IB_STAGE_DEVICE_NOTIFIER, 958 MLX5_IB_STAGE_ODP, 959 MLX5_IB_STAGE_COUNTERS, 960 MLX5_IB_STAGE_CONG_DEBUGFS, 961 MLX5_IB_STAGE_UAR, 962 MLX5_IB_STAGE_BFREG, 963 MLX5_IB_STAGE_PRE_IB_REG_UMR, 964 MLX5_IB_STAGE_WHITELIST_UID, 965 MLX5_IB_STAGE_IB_REG, 966 MLX5_IB_STAGE_POST_IB_REG_UMR, 967 MLX5_IB_STAGE_DELAY_DROP, 968 MLX5_IB_STAGE_RESTRACK, 969 MLX5_IB_STAGE_MAX, 970}; 971 972struct mlx5_ib_stage { 973 int (*init)(struct mlx5_ib_dev *dev); 974 void (*cleanup)(struct mlx5_ib_dev *dev); 975}; 976 977#define STAGE_CREATE(_stage, _init, _cleanup) \ 978 .stage[_stage] = {.init = _init, .cleanup = _cleanup} 979 980struct mlx5_ib_profile { 981 struct mlx5_ib_stage stage[MLX5_IB_STAGE_MAX]; 982}; 983 984struct mlx5_ib_multiport_info { 985 struct list_head list; 986 struct mlx5_ib_dev *ibdev; 987 struct mlx5_core_dev *mdev; 988 struct notifier_block mdev_events; 989 struct completion unref_comp; 990 u64 sys_image_guid; 991 u32 mdev_refcnt; 992 bool is_master; 993 bool unaffiliate; 994}; 995 996struct mlx5_ib_flow_action { 997 struct ib_flow_action ib_action; 998 union { 999 struct { 1000 u64 ib_flags; 1001 struct mlx5_accel_esp_xfrm *ctx; 1002 } esp_aes_gcm; 1003 struct { 1004 struct mlx5_ib_dev *dev; 1005 u32 sub_type; 1006 union { 1007 struct mlx5_modify_hdr *modify_hdr; 1008 struct mlx5_pkt_reformat *pkt_reformat; 1009 }; 1010 } flow_action_raw; 1011 }; 1012}; 1013 1014struct mlx5_dm { 1015 struct mlx5_core_dev *dev; 1016 /* This lock is used to protect the access to the shared 1017 * allocation map when concurrent requests by different 1018 * processes are handled. 1019 */ 1020 spinlock_t lock; 1021 DECLARE_BITMAP(memic_alloc_pages, MLX5_MAX_MEMIC_PAGES); 1022}; 1023 1024struct mlx5_read_counters_attr { 1025 struct mlx5_fc *hw_cntrs_hndl; 1026 u64 *out; 1027 u32 flags; 1028}; 1029 1030enum mlx5_ib_counters_type { 1031 MLX5_IB_COUNTERS_FLOW, 1032}; 1033 1034struct mlx5_ib_mcounters { 1035 struct ib_counters ibcntrs; 1036 enum mlx5_ib_counters_type type; 1037 /* number of counters supported for this counters type */ 1038 u32 counters_num; 1039 struct mlx5_fc *hw_cntrs_hndl; 1040 /* read function for this counters type */ 1041 int (*read_counters)(struct ib_device *ibdev, 1042 struct mlx5_read_counters_attr *read_attr); 1043 /* max index set as part of create_flow */ 1044 u32 cntrs_max_index; 1045 /* number of counters data entries (<description,index> pair) */ 1046 u32 ncounters; 1047 /* counters data array for descriptions and indexes */ 1048 struct mlx5_ib_flow_counters_desc *counters_data; 1049 /* protects access to mcounters internal data */ 1050 struct mutex mcntrs_mutex; 1051}; 1052 1053static inline struct mlx5_ib_mcounters * 1054to_mcounters(struct ib_counters *ibcntrs) 1055{ 1056 return container_of(ibcntrs, struct mlx5_ib_mcounters, ibcntrs); 1057} 1058 1059int parse_flow_flow_action(struct mlx5_ib_flow_action *maction, 1060 bool is_egress, 1061 struct mlx5_flow_act *action); 1062struct mlx5_ib_lb_state { 1063 /* protect the user_td */ 1064 struct mutex mutex; 1065 u32 user_td; 1066 int qps; 1067 bool enabled; 1068}; 1069 1070struct mlx5_ib_pf_eq { 1071 struct notifier_block irq_nb; 1072 struct mlx5_ib_dev *dev; 1073 struct mlx5_eq *core; 1074 struct work_struct work; 1075 spinlock_t lock; /* Pagefaults spinlock */ 1076 struct workqueue_struct *wq; 1077 mempool_t *pool; 1078}; 1079 1080struct mlx5_devx_event_table { 1081 struct mlx5_nb devx_nb; 1082 /* serialize updating the event_xa */ 1083 struct mutex event_xa_lock; 1084 struct xarray event_xa; 1085}; 1086 1087struct mlx5_var_table { 1088 /* serialize updating the bitmap */ 1089 struct mutex bitmap_lock; 1090 unsigned long *bitmap; 1091 u64 hw_start_addr; 1092 u32 stride_size; 1093 u64 num_var_hw_entries; 1094}; 1095 1096struct mlx5_port_caps { 1097 bool has_smi; 1098 u8 ext_port_cap; 1099}; 1100 1101 1102struct mlx5_special_mkeys { 1103 u32 dump_fill_mkey; 1104 __be32 null_mkey; 1105 __be32 terminate_scatter_list_mkey; 1106}; 1107 1108struct mlx5_macsec { 1109 struct mutex lock; /* Protects mlx5_macsec internal contexts */ 1110 struct list_head macsec_devices_list; 1111 struct notifier_block blocking_events_nb; 1112}; 1113 1114struct mlx5_ib_dev { 1115 struct ib_device ib_dev; 1116 struct mlx5_core_dev *mdev; 1117 struct notifier_block mdev_events; 1118 int num_ports; 1119 /* serialize update of capability mask 1120 */ 1121 struct mutex cap_mask_mutex; 1122 u8 ib_active:1; 1123 u8 is_rep:1; 1124 u8 lag_active:1; 1125 u8 wc_support:1; 1126 u8 fill_delay; 1127 struct umr_common umrc; 1128 /* sync used page count stats 1129 */ 1130 struct mlx5_ib_resources devr; 1131 1132 atomic_t mkey_var; 1133 struct mlx5_mkey_cache cache; 1134 struct timer_list delay_timer; 1135 /* Prevents soft lock on massive reg MRs */ 1136 struct mutex slow_path_mutex; 1137 struct ib_odp_caps odp_caps; 1138 u64 odp_max_size; 1139 struct mutex odp_eq_mutex; 1140 struct mlx5_ib_pf_eq odp_pf_eq; 1141 1142 struct xarray odp_mkeys; 1143 1144 struct mlx5_ib_flow_db *flow_db; 1145 /* protect resources needed as part of reset flow */ 1146 spinlock_t reset_flow_resource_lock; 1147 struct list_head qp_list; 1148 /* Array with num_ports elements */ 1149 struct mlx5_ib_port *port; 1150 struct mlx5_sq_bfreg bfreg; 1151 struct mlx5_sq_bfreg wc_bfreg; 1152 struct mlx5_sq_bfreg fp_bfreg; 1153 struct mlx5_ib_delay_drop delay_drop; 1154 const struct mlx5_ib_profile *profile; 1155 1156 struct mlx5_ib_lb_state lb; 1157 u8 umr_fence; 1158 struct list_head ib_dev_list; 1159 u64 sys_image_guid; 1160 struct mlx5_dm dm; 1161 u16 devx_whitelist_uid; 1162 struct mlx5_srq_table srq_table; 1163 struct mlx5_qp_table qp_table; 1164 struct mlx5_async_ctx async_ctx; 1165 struct mlx5_devx_event_table devx_event_table; 1166 struct mlx5_var_table var_table; 1167 1168 struct xarray sig_mrs; 1169 struct mlx5_port_caps port_caps[MLX5_MAX_PORTS]; 1170 u16 pkey_table_len; 1171 u8 lag_ports; 1172 struct mlx5_special_mkeys mkeys; 1173 1174#ifdef CONFIG_MLX5_MACSEC 1175 struct mlx5_macsec macsec; 1176#endif 1177}; 1178 1179static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq) 1180{ 1181 return container_of(mcq, struct mlx5_ib_cq, mcq); 1182} 1183 1184static inline struct mlx5_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd) 1185{ 1186 return container_of(ibxrcd, struct mlx5_ib_xrcd, ibxrcd); 1187} 1188 1189static inline struct mlx5_ib_dev *to_mdev(struct ib_device *ibdev) 1190{ 1191 return container_of(ibdev, struct mlx5_ib_dev, ib_dev); 1192} 1193 1194static inline struct mlx5_ib_dev *mr_to_mdev(struct mlx5_ib_mr *mr) 1195{ 1196 return to_mdev(mr->ibmr.device); 1197} 1198 1199static inline struct mlx5_ib_dev *mlx5_udata_to_mdev(struct ib_udata *udata) 1200{ 1201 struct mlx5_ib_ucontext *context = rdma_udata_to_drv_context( 1202 udata, struct mlx5_ib_ucontext, ibucontext); 1203 1204 return to_mdev(context->ibucontext.device); 1205} 1206 1207static inline struct mlx5_ib_cq *to_mcq(struct ib_cq *ibcq) 1208{ 1209 return container_of(ibcq, struct mlx5_ib_cq, ibcq); 1210} 1211 1212static inline struct mlx5_ib_qp *to_mibqp(struct mlx5_core_qp *mqp) 1213{ 1214 return container_of(mqp, struct mlx5_ib_qp_base, mqp)->container_mibqp; 1215} 1216 1217static inline struct mlx5_ib_rwq *to_mibrwq(struct mlx5_core_qp *core_qp) 1218{ 1219 return container_of(core_qp, struct mlx5_ib_rwq, core_qp); 1220} 1221 1222static inline struct mlx5_ib_pd *to_mpd(struct ib_pd *ibpd) 1223{ 1224 return container_of(ibpd, struct mlx5_ib_pd, ibpd); 1225} 1226 1227static inline struct mlx5_ib_srq *to_msrq(struct ib_srq *ibsrq) 1228{ 1229 return container_of(ibsrq, struct mlx5_ib_srq, ibsrq); 1230} 1231 1232static inline struct mlx5_ib_qp *to_mqp(struct ib_qp *ibqp) 1233{ 1234 return container_of(ibqp, struct mlx5_ib_qp, ibqp); 1235} 1236 1237static inline struct mlx5_ib_rwq *to_mrwq(struct ib_wq *ibwq) 1238{ 1239 return container_of(ibwq, struct mlx5_ib_rwq, ibwq); 1240} 1241 1242static inline struct mlx5_ib_rwq_ind_table *to_mrwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl) 1243{ 1244 return container_of(ib_rwq_ind_tbl, struct mlx5_ib_rwq_ind_table, ib_rwq_ind_tbl); 1245} 1246 1247static inline struct mlx5_ib_srq *to_mibsrq(struct mlx5_core_srq *msrq) 1248{ 1249 return container_of(msrq, struct mlx5_ib_srq, msrq); 1250} 1251 1252static inline struct mlx5_ib_mr *to_mmr(struct ib_mr *ibmr) 1253{ 1254 return container_of(ibmr, struct mlx5_ib_mr, ibmr); 1255} 1256 1257static inline struct mlx5_ib_mw *to_mmw(struct ib_mw *ibmw) 1258{ 1259 return container_of(ibmw, struct mlx5_ib_mw, ibmw); 1260} 1261 1262static inline struct mlx5_ib_flow_action * 1263to_mflow_act(struct ib_flow_action *ibact) 1264{ 1265 return container_of(ibact, struct mlx5_ib_flow_action, ib_action); 1266} 1267 1268static inline struct mlx5_user_mmap_entry * 1269to_mmmap(struct rdma_user_mmap_entry *rdma_entry) 1270{ 1271 return container_of(rdma_entry, 1272 struct mlx5_user_mmap_entry, rdma_entry); 1273} 1274 1275int mlx5_ib_db_map_user(struct mlx5_ib_ucontext *context, unsigned long virt, 1276 struct mlx5_db *db); 1277void mlx5_ib_db_unmap_user(struct mlx5_ib_ucontext *context, struct mlx5_db *db); 1278void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq); 1279void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq); 1280void mlx5_ib_free_srq_wqe(struct mlx5_ib_srq *srq, int wqe_index); 1281int mlx5_ib_create_ah(struct ib_ah *ah, struct rdma_ah_init_attr *init_attr, 1282 struct ib_udata *udata); 1283int mlx5_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr); 1284static inline int mlx5_ib_destroy_ah(struct ib_ah *ah, u32 flags) 1285{ 1286 return 0; 1287} 1288int mlx5_ib_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr, 1289 struct ib_udata *udata); 1290int mlx5_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, 1291 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata); 1292int mlx5_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr); 1293int mlx5_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata); 1294int mlx5_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr, 1295 const struct ib_recv_wr **bad_wr); 1296int mlx5_ib_enable_lb(struct mlx5_ib_dev *dev, bool td, bool qp); 1297void mlx5_ib_disable_lb(struct mlx5_ib_dev *dev, bool td, bool qp); 1298int mlx5_ib_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *init_attr, 1299 struct ib_udata *udata); 1300int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 1301 int attr_mask, struct ib_udata *udata); 1302int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, 1303 struct ib_qp_init_attr *qp_init_attr); 1304int mlx5_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata); 1305void mlx5_ib_drain_sq(struct ib_qp *qp); 1306void mlx5_ib_drain_rq(struct ib_qp *qp); 1307int mlx5_ib_read_wqe_sq(struct mlx5_ib_qp *qp, int wqe_index, void *buffer, 1308 size_t buflen, size_t *bc); 1309int mlx5_ib_read_wqe_rq(struct mlx5_ib_qp *qp, int wqe_index, void *buffer, 1310 size_t buflen, size_t *bc); 1311int mlx5_ib_read_wqe_srq(struct mlx5_ib_srq *srq, int wqe_index, void *buffer, 1312 size_t buflen, size_t *bc); 1313int mlx5_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, 1314 struct ib_udata *udata); 1315int mlx5_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata); 1316int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); 1317int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags); 1318int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); 1319int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata); 1320struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc); 1321struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 1322 u64 virt_addr, int access_flags, 1323 struct ib_udata *udata); 1324struct ib_mr *mlx5_ib_reg_user_mr_dmabuf(struct ib_pd *pd, u64 start, 1325 u64 length, u64 virt_addr, 1326 int fd, int access_flags, 1327 struct ib_udata *udata); 1328int mlx5_ib_advise_mr(struct ib_pd *pd, 1329 enum ib_uverbs_advise_mr_advice advice, 1330 u32 flags, 1331 struct ib_sge *sg_list, 1332 u32 num_sge, 1333 struct uverbs_attr_bundle *attrs); 1334int mlx5_ib_alloc_mw(struct ib_mw *mw, struct ib_udata *udata); 1335int mlx5_ib_dealloc_mw(struct ib_mw *mw); 1336struct mlx5_ib_mr *mlx5_ib_alloc_implicit_mr(struct mlx5_ib_pd *pd, 1337 int access_flags); 1338void mlx5_ib_free_implicit_mr(struct mlx5_ib_mr *mr); 1339void mlx5_ib_free_odp_mr(struct mlx5_ib_mr *mr); 1340struct ib_mr *mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start, 1341 u64 length, u64 virt_addr, int access_flags, 1342 struct ib_pd *pd, struct ib_udata *udata); 1343int mlx5_ib_dereg_mr(struct ib_mr *ibmr, struct ib_udata *udata); 1344struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, 1345 u32 max_num_sg); 1346struct ib_mr *mlx5_ib_alloc_mr_integrity(struct ib_pd *pd, 1347 u32 max_num_sg, 1348 u32 max_num_meta_sg); 1349int mlx5_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents, 1350 unsigned int *sg_offset); 1351int mlx5_ib_map_mr_sg_pi(struct ib_mr *ibmr, struct scatterlist *data_sg, 1352 int data_sg_nents, unsigned int *data_sg_offset, 1353 struct scatterlist *meta_sg, int meta_sg_nents, 1354 unsigned int *meta_sg_offset); 1355int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num, 1356 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 1357 const struct ib_mad *in, struct ib_mad *out, 1358 size_t *out_mad_size, u16 *out_mad_pkey_index); 1359int mlx5_ib_alloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); 1360int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); 1361int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, unsigned int port); 1362int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev, 1363 __be64 *sys_image_guid); 1364int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev, 1365 u16 *max_pkeys); 1366int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev, 1367 u32 *vendor_id); 1368int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc); 1369int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid); 1370int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u32 port, u16 index, 1371 u16 *pkey); 1372int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u32 port, int index, 1373 union ib_gid *gid); 1374int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u32 port, 1375 struct ib_port_attr *props); 1376int mlx5_ib_query_port(struct ib_device *ibdev, u32 port, 1377 struct ib_port_attr *props); 1378void mlx5_ib_populate_pas(struct ib_umem *umem, size_t page_size, __be64 *pas, 1379 u64 access_flags); 1380int mlx5_ib_get_cqe_size(struct ib_cq *ibcq); 1381int mlx5_mkey_cache_init(struct mlx5_ib_dev *dev); 1382void mlx5_mkey_cache_cleanup(struct mlx5_ib_dev *dev); 1383struct mlx5_cache_ent * 1384mlx5r_cache_create_ent_locked(struct mlx5_ib_dev *dev, 1385 struct mlx5r_cache_rb_key rb_key, 1386 bool persistent_entry); 1387 1388struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, 1389 int access_flags, int access_mode, 1390 int ndescs); 1391 1392int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask, 1393 struct ib_mr_status *mr_status); 1394struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd, 1395 struct ib_wq_init_attr *init_attr, 1396 struct ib_udata *udata); 1397int mlx5_ib_destroy_wq(struct ib_wq *wq, struct ib_udata *udata); 1398int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr, 1399 u32 wq_attr_mask, struct ib_udata *udata); 1400int mlx5_ib_create_rwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_table, 1401 struct ib_rwq_ind_table_init_attr *init_attr, 1402 struct ib_udata *udata); 1403int mlx5_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table); 1404struct ib_mr *mlx5_ib_reg_dm_mr(struct ib_pd *pd, struct ib_dm *dm, 1405 struct ib_dm_mr_attr *attr, 1406 struct uverbs_attr_bundle *attrs); 1407 1408#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 1409int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev); 1410int mlx5r_odp_create_eq(struct mlx5_ib_dev *dev, struct mlx5_ib_pf_eq *eq); 1411void mlx5_ib_odp_cleanup_one(struct mlx5_ib_dev *ibdev); 1412int __init mlx5_ib_odp_init(void); 1413void mlx5_ib_odp_cleanup(void); 1414int mlx5_odp_init_mkey_cache(struct mlx5_ib_dev *dev); 1415void mlx5_odp_populate_xlt(void *xlt, size_t idx, size_t nentries, 1416 struct mlx5_ib_mr *mr, int flags); 1417 1418int mlx5_ib_advise_mr_prefetch(struct ib_pd *pd, 1419 enum ib_uverbs_advise_mr_advice advice, 1420 u32 flags, struct ib_sge *sg_list, u32 num_sge); 1421int mlx5_ib_init_odp_mr(struct mlx5_ib_mr *mr); 1422int mlx5_ib_init_dmabuf_mr(struct mlx5_ib_mr *mr); 1423#else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ 1424static inline int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev) { return 0; } 1425static inline int mlx5r_odp_create_eq(struct mlx5_ib_dev *dev, 1426 struct mlx5_ib_pf_eq *eq) 1427{ 1428 return 0; 1429} 1430static inline void mlx5_ib_odp_cleanup_one(struct mlx5_ib_dev *ibdev) {} 1431static inline int mlx5_ib_odp_init(void) { return 0; } 1432static inline void mlx5_ib_odp_cleanup(void) {} 1433static inline int mlx5_odp_init_mkey_cache(struct mlx5_ib_dev *dev) 1434{ 1435 return 0; 1436} 1437static inline void mlx5_odp_populate_xlt(void *xlt, size_t idx, size_t nentries, 1438 struct mlx5_ib_mr *mr, int flags) {} 1439 1440static inline int 1441mlx5_ib_advise_mr_prefetch(struct ib_pd *pd, 1442 enum ib_uverbs_advise_mr_advice advice, u32 flags, 1443 struct ib_sge *sg_list, u32 num_sge) 1444{ 1445 return -EOPNOTSUPP; 1446} 1447static inline int mlx5_ib_init_odp_mr(struct mlx5_ib_mr *mr) 1448{ 1449 return -EOPNOTSUPP; 1450} 1451static inline int mlx5_ib_init_dmabuf_mr(struct mlx5_ib_mr *mr) 1452{ 1453 return -EOPNOTSUPP; 1454} 1455#endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ 1456 1457extern const struct mmu_interval_notifier_ops mlx5_mn_ops; 1458 1459/* Needed for rep profile */ 1460void __mlx5_ib_remove(struct mlx5_ib_dev *dev, 1461 const struct mlx5_ib_profile *profile, 1462 int stage); 1463int __mlx5_ib_add(struct mlx5_ib_dev *dev, 1464 const struct mlx5_ib_profile *profile); 1465 1466int mlx5_ib_get_vf_config(struct ib_device *device, int vf, 1467 u32 port, struct ifla_vf_info *info); 1468int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf, 1469 u32 port, int state); 1470int mlx5_ib_get_vf_stats(struct ib_device *device, int vf, 1471 u32 port, struct ifla_vf_stats *stats); 1472int mlx5_ib_get_vf_guid(struct ib_device *device, int vf, u32 port, 1473 struct ifla_vf_guid *node_guid, 1474 struct ifla_vf_guid *port_guid); 1475int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u32 port, 1476 u64 guid, int type); 1477 1478__be16 mlx5_get_roce_udp_sport_min(const struct mlx5_ib_dev *dev, 1479 const struct ib_gid_attr *attr); 1480 1481void mlx5_ib_cleanup_cong_debugfs(struct mlx5_ib_dev *dev, u32 port_num); 1482void mlx5_ib_init_cong_debugfs(struct mlx5_ib_dev *dev, u32 port_num); 1483 1484/* GSI QP helper functions */ 1485int mlx5_ib_create_gsi(struct ib_pd *pd, struct mlx5_ib_qp *mqp, 1486 struct ib_qp_init_attr *attr); 1487int mlx5_ib_destroy_gsi(struct mlx5_ib_qp *mqp); 1488int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr, 1489 int attr_mask); 1490int mlx5_ib_gsi_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr, 1491 int qp_attr_mask, 1492 struct ib_qp_init_attr *qp_init_attr); 1493int mlx5_ib_gsi_post_send(struct ib_qp *qp, const struct ib_send_wr *wr, 1494 const struct ib_send_wr **bad_wr); 1495int mlx5_ib_gsi_post_recv(struct ib_qp *qp, const struct ib_recv_wr *wr, 1496 const struct ib_recv_wr **bad_wr); 1497void mlx5_ib_gsi_pkey_change(struct mlx5_ib_gsi_qp *gsi); 1498 1499int mlx5_ib_generate_wc(struct ib_cq *ibcq, struct ib_wc *wc); 1500 1501void mlx5_ib_free_bfreg(struct mlx5_ib_dev *dev, struct mlx5_bfreg_info *bfregi, 1502 int bfregn); 1503struct mlx5_ib_dev *mlx5_ib_get_ibdev_from_mpi(struct mlx5_ib_multiport_info *mpi); 1504struct mlx5_core_dev *mlx5_ib_get_native_port_mdev(struct mlx5_ib_dev *dev, 1505 u32 ib_port_num, 1506 u32 *native_port_num); 1507void mlx5_ib_put_native_port_mdev(struct mlx5_ib_dev *dev, 1508 u32 port_num); 1509 1510extern const struct uapi_definition mlx5_ib_devx_defs[]; 1511extern const struct uapi_definition mlx5_ib_flow_defs[]; 1512extern const struct uapi_definition mlx5_ib_qos_defs[]; 1513extern const struct uapi_definition mlx5_ib_std_types_defs[]; 1514 1515static inline int is_qp1(enum ib_qp_type qp_type) 1516{ 1517 return qp_type == MLX5_IB_QPT_HW_GSI || qp_type == IB_QPT_GSI; 1518} 1519 1520static inline u32 check_cq_create_flags(u32 flags) 1521{ 1522 /* 1523 * It returns non-zero value for unsupported CQ 1524 * create flags, otherwise it returns zero. 1525 */ 1526 return (flags & ~(IB_UVERBS_CQ_FLAGS_IGNORE_OVERRUN | 1527 IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION)); 1528} 1529 1530static inline int verify_assign_uidx(u8 cqe_version, u32 cmd_uidx, 1531 u32 *user_index) 1532{ 1533 if (cqe_version) { 1534 if ((cmd_uidx == MLX5_IB_DEFAULT_UIDX) || 1535 (cmd_uidx & ~MLX5_USER_ASSIGNED_UIDX_MASK)) 1536 return -EINVAL; 1537 *user_index = cmd_uidx; 1538 } else { 1539 *user_index = MLX5_IB_DEFAULT_UIDX; 1540 } 1541 1542 return 0; 1543} 1544 1545static inline int get_qp_user_index(struct mlx5_ib_ucontext *ucontext, 1546 struct mlx5_ib_create_qp *ucmd, 1547 int inlen, 1548 u32 *user_index) 1549{ 1550 u8 cqe_version = ucontext->cqe_version; 1551 1552 if ((offsetofend(typeof(*ucmd), uidx) <= inlen) && !cqe_version && 1553 (ucmd->uidx == MLX5_IB_DEFAULT_UIDX)) 1554 return 0; 1555 1556 if ((offsetofend(typeof(*ucmd), uidx) <= inlen) != !!cqe_version) 1557 return -EINVAL; 1558 1559 return verify_assign_uidx(cqe_version, ucmd->uidx, user_index); 1560} 1561 1562static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext, 1563 struct mlx5_ib_create_srq *ucmd, 1564 int inlen, 1565 u32 *user_index) 1566{ 1567 u8 cqe_version = ucontext->cqe_version; 1568 1569 if ((offsetofend(typeof(*ucmd), uidx) <= inlen) && !cqe_version && 1570 (ucmd->uidx == MLX5_IB_DEFAULT_UIDX)) 1571 return 0; 1572 1573 if ((offsetofend(typeof(*ucmd), uidx) <= inlen) != !!cqe_version) 1574 return -EINVAL; 1575 1576 return verify_assign_uidx(cqe_version, ucmd->uidx, user_index); 1577} 1578 1579static inline int get_uars_per_sys_page(struct mlx5_ib_dev *dev, bool lib_support) 1580{ 1581 return lib_support && MLX5_CAP_GEN(dev->mdev, uar_4k) ? 1582 MLX5_UARS_IN_PAGE : 1; 1583} 1584 1585extern void *xlt_emergency_page; 1586 1587int bfregn_to_uar_index(struct mlx5_ib_dev *dev, 1588 struct mlx5_bfreg_info *bfregi, u32 bfregn, 1589 bool dyn_bfreg); 1590 1591static inline int mlx5r_store_odp_mkey(struct mlx5_ib_dev *dev, 1592 struct mlx5_ib_mkey *mmkey) 1593{ 1594 refcount_set(&mmkey->usecount, 1); 1595 1596 return xa_err(xa_store(&dev->odp_mkeys, mlx5_base_mkey(mmkey->key), 1597 mmkey, GFP_KERNEL)); 1598} 1599 1600/* deref an mkey that can participate in ODP flow */ 1601static inline void mlx5r_deref_odp_mkey(struct mlx5_ib_mkey *mmkey) 1602{ 1603 if (refcount_dec_and_test(&mmkey->usecount)) 1604 wake_up(&mmkey->wait); 1605} 1606 1607/* deref an mkey that can participate in ODP flow and wait for relese */ 1608static inline void mlx5r_deref_wait_odp_mkey(struct mlx5_ib_mkey *mmkey) 1609{ 1610 mlx5r_deref_odp_mkey(mmkey); 1611 wait_event(mmkey->wait, refcount_read(&mmkey->usecount) == 0); 1612} 1613 1614int mlx5_ib_test_wc(struct mlx5_ib_dev *dev); 1615 1616static inline bool mlx5_ib_lag_should_assign_affinity(struct mlx5_ib_dev *dev) 1617{ 1618 /* 1619 * If the driver is in hash mode and the port_select_flow_table_bypass cap 1620 * is supported, it means that the driver no longer needs to assign the port 1621 * affinity by default. If a user wants to set the port affinity explicitly, 1622 * the user has a dedicated API to do that, so there is no need to assign 1623 * the port affinity by default. 1624 */ 1625 if (dev->lag_active && 1626 mlx5_lag_mode_is_hash(dev->mdev) && 1627 MLX5_CAP_PORT_SELECTION(dev->mdev, port_select_flow_table_bypass)) 1628 return 0; 1629 1630 if (mlx5_lag_is_lacp_owner(dev->mdev) && !dev->lag_active) 1631 return 0; 1632 1633 return dev->lag_active || 1634 (MLX5_CAP_GEN(dev->mdev, num_lag_ports) > 1 && 1635 MLX5_CAP_GEN(dev->mdev, lag_tx_port_affinity)); 1636} 1637 1638static inline bool rt_supported(int ts_cap) 1639{ 1640 return ts_cap == MLX5_TIMESTAMP_FORMAT_CAP_REAL_TIME || 1641 ts_cap == MLX5_TIMESTAMP_FORMAT_CAP_FREE_RUNNING_AND_REAL_TIME; 1642} 1643 1644/* 1645 * PCI Peer to Peer is a trainwreck. If no switch is present then things 1646 * sometimes work, depending on the pci_distance_p2p logic for excluding broken 1647 * root complexes. However if a switch is present in the path, then things get 1648 * really ugly depending on how the switch is setup. This table assumes that the 1649 * root complex is strict and is validating that all req/reps are matches 1650 * perfectly - so any scenario where it sees only half the transaction is a 1651 * failure. 1652 * 1653 * CR/RR/DT ATS RO P2P 1654 * 00X X X OK 1655 * 010 X X fails (request is routed to root but root never sees comp) 1656 * 011 0 X fails (request is routed to root but root never sees comp) 1657 * 011 1 X OK 1658 * 10X X 1 OK 1659 * 101 X 0 fails (completion is routed to root but root didn't see req) 1660 * 110 X 0 SLOW 1661 * 111 0 0 SLOW 1662 * 111 1 0 fails (completion is routed to root but root didn't see req) 1663 * 111 1 1 OK 1664 * 1665 * Unfortunately we cannot reliably know if a switch is present or what the 1666 * CR/RR/DT ACS settings are, as in a VM that is all hidden. Assume that 1667 * CR/RR/DT is 111 if the ATS cap is enabled and follow the last three rows. 1668 * 1669 * For now assume if the umem is a dma_buf then it is P2P. 1670 */ 1671static inline bool mlx5_umem_needs_ats(struct mlx5_ib_dev *dev, 1672 struct ib_umem *umem, int access_flags) 1673{ 1674 if (!MLX5_CAP_GEN(dev->mdev, ats) || !umem->is_dmabuf) 1675 return false; 1676 return access_flags & IB_ACCESS_RELAXED_ORDERING; 1677} 1678 1679int set_roce_addr(struct mlx5_ib_dev *dev, u32 port_num, 1680 unsigned int index, const union ib_gid *gid, 1681 const struct ib_gid_attr *attr); 1682#endif /* MLX5_IB_H */ 1683