1 /* 2 * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 */ 32 33 #ifndef MLX5_IB_H 34 #define MLX5_IB_H 35 36 #include <linux/kernel.h> 37 #include <linux/sched.h> 38 #include <rdma/ib_verbs.h> 39 #include <rdma/ib_smi.h> 40 #include <linux/mlx5/driver.h> 41 #include <linux/mlx5/cq.h> 42 #include <linux/mlx5/fs.h> 43 #include <linux/mlx5/qp.h> 44 #include <linux/types.h> 45 #include <linux/mlx5/transobj.h> 46 #include <rdma/ib_user_verbs.h> 47 #include <rdma/mlx5-abi.h> 48 #include <rdma/uverbs_ioctl.h> 49 #include <rdma/mlx5_user_ioctl_cmds.h> 50 51 #include "srq.h" 52 53 #define mlx5_ib_dbg(_dev, format, arg...) \ 54 dev_dbg(&(_dev)->ib_dev.dev, "%s:%d:(pid %d): " format, __func__, \ 55 __LINE__, current->pid, ##arg) 56 57 #define mlx5_ib_err(_dev, format, arg...) \ 58 dev_err(&(_dev)->ib_dev.dev, "%s:%d:(pid %d): " format, __func__, \ 59 __LINE__, current->pid, ##arg) 60 61 #define mlx5_ib_warn(_dev, format, arg...) \ 62 dev_warn(&(_dev)->ib_dev.dev, "%s:%d:(pid %d): " format, __func__, \ 63 __LINE__, current->pid, ##arg) 64 65 #define field_avail(type, fld, sz) (offsetof(type, fld) + \ 66 sizeof(((type *)0)->fld) <= (sz)) 67 #define MLX5_IB_DEFAULT_UIDX 0xffffff 68 #define MLX5_USER_ASSIGNED_UIDX_MASK __mlx5_mask(qpc, user_index) 69 70 #define MLX5_MKEY_PAGE_SHIFT_MASK __mlx5_mask(mkc, log_page_size) 71 72 enum { 73 MLX5_IB_MMAP_CMD_SHIFT = 8, 74 MLX5_IB_MMAP_CMD_MASK = 0xff, 75 }; 76 77 enum { 78 MLX5_RES_SCAT_DATA32_CQE = 0x1, 79 MLX5_RES_SCAT_DATA64_CQE = 0x2, 80 MLX5_REQ_SCAT_DATA32_CQE = 0x11, 81 MLX5_REQ_SCAT_DATA64_CQE = 0x22, 82 }; 83 84 enum mlx5_ib_mad_ifc_flags { 85 MLX5_MAD_IFC_IGNORE_MKEY = 1, 86 MLX5_MAD_IFC_IGNORE_BKEY = 2, 87 MLX5_MAD_IFC_NET_VIEW = 4, 88 }; 89 90 enum { 91 MLX5_CROSS_CHANNEL_BFREG = 0, 92 }; 93 94 enum { 95 MLX5_CQE_VERSION_V0, 96 MLX5_CQE_VERSION_V1, 97 }; 98 99 enum { 100 MLX5_TM_MAX_RNDV_MSG_SIZE = 64, 101 MLX5_TM_MAX_SGE = 1, 102 }; 103 104 enum { 105 MLX5_IB_INVALID_UAR_INDEX = BIT(31), 106 MLX5_IB_INVALID_BFREG = BIT(31), 107 }; 108 109 enum { 110 MLX5_MAX_MEMIC_PAGES = 0x100, 111 MLX5_MEMIC_ALLOC_SIZE_MASK = 0x3f, 112 }; 113 114 enum { 115 MLX5_MEMIC_BASE_ALIGN = 6, 116 MLX5_MEMIC_BASE_SIZE = 1 << MLX5_MEMIC_BASE_ALIGN, 117 }; 118 119 struct mlx5_ib_ucontext { 120 struct ib_ucontext ibucontext; 121 struct list_head db_page_list; 122 123 /* protect doorbell record alloc/free 124 */ 125 struct mutex db_page_mutex; 126 struct mlx5_bfreg_info bfregi; 127 u8 cqe_version; 128 /* Transport Domain number */ 129 u32 tdn; 130 131 u64 lib_caps; 132 DECLARE_BITMAP(dm_pages, MLX5_MAX_MEMIC_PAGES); 133 u16 devx_uid; 134 /* For RoCE LAG TX affinity */ 135 atomic_t tx_port_affinity; 136 }; 137 138 static inline struct mlx5_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext) 139 { 140 return container_of(ibucontext, struct mlx5_ib_ucontext, ibucontext); 141 } 142 143 struct mlx5_ib_pd { 144 struct ib_pd ibpd; 145 u32 pdn; 146 u16 uid; 147 }; 148 149 enum { 150 MLX5_IB_FLOW_ACTION_MODIFY_HEADER, 151 MLX5_IB_FLOW_ACTION_PACKET_REFORMAT, 152 MLX5_IB_FLOW_ACTION_DECAP, 153 }; 154 155 #define MLX5_IB_FLOW_MCAST_PRIO (MLX5_BY_PASS_NUM_PRIOS - 1) 156 #define MLX5_IB_FLOW_LAST_PRIO (MLX5_BY_PASS_NUM_REGULAR_PRIOS - 1) 157 #if (MLX5_IB_FLOW_LAST_PRIO <= 0) 158 #error "Invalid number of bypass priorities" 159 #endif 160 #define MLX5_IB_FLOW_LEFTOVERS_PRIO (MLX5_IB_FLOW_MCAST_PRIO + 1) 161 162 #define MLX5_IB_NUM_FLOW_FT (MLX5_IB_FLOW_LEFTOVERS_PRIO + 1) 163 #define MLX5_IB_NUM_SNIFFER_FTS 2 164 #define MLX5_IB_NUM_EGRESS_FTS 1 165 struct mlx5_ib_flow_prio { 166 struct mlx5_flow_table *flow_table; 167 unsigned int refcount; 168 }; 169 170 struct mlx5_ib_flow_handler { 171 struct list_head list; 172 struct ib_flow ibflow; 173 struct mlx5_ib_flow_prio *prio; 174 struct mlx5_flow_handle *rule; 175 struct ib_counters *ibcounters; 176 struct mlx5_ib_dev *dev; 177 struct mlx5_ib_flow_matcher *flow_matcher; 178 }; 179 180 struct mlx5_ib_flow_matcher { 181 struct mlx5_ib_match_params matcher_mask; 182 int mask_len; 183 enum mlx5_ib_flow_type flow_type; 184 enum mlx5_flow_namespace_type ns_type; 185 u16 priority; 186 struct mlx5_core_dev *mdev; 187 atomic_t usecnt; 188 u8 match_criteria_enable; 189 }; 190 191 struct mlx5_ib_flow_db { 192 struct mlx5_ib_flow_prio prios[MLX5_IB_NUM_FLOW_FT]; 193 struct mlx5_ib_flow_prio egress_prios[MLX5_IB_NUM_FLOW_FT]; 194 struct mlx5_ib_flow_prio sniffer[MLX5_IB_NUM_SNIFFER_FTS]; 195 struct mlx5_ib_flow_prio egress[MLX5_IB_NUM_EGRESS_FTS]; 196 struct mlx5_flow_table *lag_demux_ft; 197 /* Protect flow steering bypass flow tables 198 * when add/del flow rules. 199 * only single add/removal of flow steering rule could be done 200 * simultaneously. 201 */ 202 struct mutex lock; 203 }; 204 205 /* Use macros here so that don't have to duplicate 206 * enum ib_send_flags and enum ib_qp_type for low-level driver 207 */ 208 209 #define MLX5_IB_SEND_UMR_ENABLE_MR (IB_SEND_RESERVED_START << 0) 210 #define MLX5_IB_SEND_UMR_DISABLE_MR (IB_SEND_RESERVED_START << 1) 211 #define MLX5_IB_SEND_UMR_FAIL_IF_FREE (IB_SEND_RESERVED_START << 2) 212 #define MLX5_IB_SEND_UMR_UPDATE_XLT (IB_SEND_RESERVED_START << 3) 213 #define MLX5_IB_SEND_UMR_UPDATE_TRANSLATION (IB_SEND_RESERVED_START << 4) 214 #define MLX5_IB_SEND_UMR_UPDATE_PD_ACCESS IB_SEND_RESERVED_END 215 216 #define MLX5_IB_QPT_REG_UMR IB_QPT_RESERVED1 217 /* 218 * IB_QPT_GSI creates the software wrapper around GSI, and MLX5_IB_QPT_HW_GSI 219 * creates the actual hardware QP. 220 */ 221 #define MLX5_IB_QPT_HW_GSI IB_QPT_RESERVED2 222 #define MLX5_IB_QPT_DCI IB_QPT_RESERVED3 223 #define MLX5_IB_QPT_DCT IB_QPT_RESERVED4 224 #define MLX5_IB_WR_UMR IB_WR_RESERVED1 225 226 #define MLX5_IB_UMR_OCTOWORD 16 227 #define MLX5_IB_UMR_XLT_ALIGNMENT 64 228 229 #define MLX5_IB_UPD_XLT_ZAP BIT(0) 230 #define MLX5_IB_UPD_XLT_ENABLE BIT(1) 231 #define MLX5_IB_UPD_XLT_ATOMIC BIT(2) 232 #define MLX5_IB_UPD_XLT_ADDR BIT(3) 233 #define MLX5_IB_UPD_XLT_PD BIT(4) 234 #define MLX5_IB_UPD_XLT_ACCESS BIT(5) 235 #define MLX5_IB_UPD_XLT_INDIRECT BIT(6) 236 237 /* Private QP creation flags to be passed in ib_qp_init_attr.create_flags. 238 * 239 * These flags are intended for internal use by the mlx5_ib driver, and they 240 * rely on the range reserved for that use in the ib_qp_create_flags enum. 241 */ 242 243 /* Create a UD QP whose source QP number is 1 */ 244 static inline enum ib_qp_create_flags mlx5_ib_create_qp_sqpn_qp1(void) 245 { 246 return IB_QP_CREATE_RESERVED_START; 247 } 248 249 struct wr_list { 250 u16 opcode; 251 u16 next; 252 }; 253 254 enum mlx5_ib_rq_flags { 255 MLX5_IB_RQ_CVLAN_STRIPPING = 1 << 0, 256 MLX5_IB_RQ_PCI_WRITE_END_PADDING = 1 << 1, 257 }; 258 259 struct mlx5_ib_wq { 260 struct mlx5_frag_buf_ctrl fbc; 261 u64 *wrid; 262 u32 *wr_data; 263 struct wr_list *w_list; 264 unsigned *wqe_head; 265 u16 unsig_count; 266 267 /* serialize post to the work queue 268 */ 269 spinlock_t lock; 270 int wqe_cnt; 271 int max_post; 272 int max_gs; 273 int offset; 274 int wqe_shift; 275 unsigned head; 276 unsigned tail; 277 u16 cur_post; 278 void *cur_edge; 279 }; 280 281 enum mlx5_ib_wq_flags { 282 MLX5_IB_WQ_FLAGS_DELAY_DROP = 0x1, 283 MLX5_IB_WQ_FLAGS_STRIDING_RQ = 0x2, 284 }; 285 286 #define MLX5_MIN_SINGLE_WQE_LOG_NUM_STRIDES 9 287 #define MLX5_MAX_SINGLE_WQE_LOG_NUM_STRIDES 16 288 #define MLX5_MIN_SINGLE_STRIDE_LOG_NUM_BYTES 6 289 #define MLX5_MAX_SINGLE_STRIDE_LOG_NUM_BYTES 13 290 291 struct mlx5_ib_rwq { 292 struct ib_wq ibwq; 293 struct mlx5_core_qp core_qp; 294 u32 rq_num_pas; 295 u32 log_rq_stride; 296 u32 log_rq_size; 297 u32 rq_page_offset; 298 u32 log_page_size; 299 u32 log_num_strides; 300 u32 two_byte_shift_en; 301 u32 single_stride_log_num_of_bytes; 302 struct ib_umem *umem; 303 size_t buf_size; 304 unsigned int page_shift; 305 int create_type; 306 struct mlx5_db db; 307 u32 user_index; 308 u32 wqe_count; 309 u32 wqe_shift; 310 int wq_sig; 311 u32 create_flags; /* Use enum mlx5_ib_wq_flags */ 312 }; 313 314 enum { 315 MLX5_QP_USER, 316 MLX5_QP_KERNEL, 317 MLX5_QP_EMPTY 318 }; 319 320 enum { 321 MLX5_WQ_USER, 322 MLX5_WQ_KERNEL 323 }; 324 325 struct mlx5_ib_rwq_ind_table { 326 struct ib_rwq_ind_table ib_rwq_ind_tbl; 327 u32 rqtn; 328 u16 uid; 329 }; 330 331 struct mlx5_ib_ubuffer { 332 struct ib_umem *umem; 333 int buf_size; 334 u64 buf_addr; 335 }; 336 337 struct mlx5_ib_qp_base { 338 struct mlx5_ib_qp *container_mibqp; 339 struct mlx5_core_qp mqp; 340 struct mlx5_ib_ubuffer ubuffer; 341 }; 342 343 struct mlx5_ib_qp_trans { 344 struct mlx5_ib_qp_base base; 345 u16 xrcdn; 346 u8 alt_port; 347 u8 atomic_rd_en; 348 u8 resp_depth; 349 }; 350 351 struct mlx5_ib_rss_qp { 352 u32 tirn; 353 }; 354 355 struct mlx5_ib_rq { 356 struct mlx5_ib_qp_base base; 357 struct mlx5_ib_wq *rq; 358 struct mlx5_ib_ubuffer ubuffer; 359 struct mlx5_db *doorbell; 360 u32 tirn; 361 u8 state; 362 u32 flags; 363 }; 364 365 struct mlx5_ib_sq { 366 struct mlx5_ib_qp_base base; 367 struct mlx5_ib_wq *sq; 368 struct mlx5_ib_ubuffer ubuffer; 369 struct mlx5_db *doorbell; 370 struct mlx5_flow_handle *flow_rule; 371 u32 tisn; 372 u8 state; 373 }; 374 375 struct mlx5_ib_raw_packet_qp { 376 struct mlx5_ib_sq sq; 377 struct mlx5_ib_rq rq; 378 }; 379 380 struct mlx5_bf { 381 int buf_size; 382 unsigned long offset; 383 struct mlx5_sq_bfreg *bfreg; 384 }; 385 386 struct mlx5_ib_dct { 387 struct mlx5_core_dct mdct; 388 u32 *in; 389 }; 390 391 struct mlx5_ib_qp { 392 struct ib_qp ibqp; 393 union { 394 struct mlx5_ib_qp_trans trans_qp; 395 struct mlx5_ib_raw_packet_qp raw_packet_qp; 396 struct mlx5_ib_rss_qp rss_qp; 397 struct mlx5_ib_dct dct; 398 }; 399 struct mlx5_frag_buf buf; 400 401 struct mlx5_db db; 402 struct mlx5_ib_wq rq; 403 404 u8 sq_signal_bits; 405 u8 next_fence; 406 struct mlx5_ib_wq sq; 407 408 /* serialize qp state modifications 409 */ 410 struct mutex mutex; 411 u32 flags; 412 u8 port; 413 u8 state; 414 int wq_sig; 415 int scat_cqe; 416 int max_inline_data; 417 struct mlx5_bf bf; 418 int has_rq; 419 420 /* only for user space QPs. For kernel 421 * we have it from the bf object 422 */ 423 int bfregn; 424 425 int create_type; 426 427 /* Store signature errors */ 428 bool signature_en; 429 430 struct list_head qps_list; 431 struct list_head cq_recv_list; 432 struct list_head cq_send_list; 433 struct mlx5_rate_limit rl; 434 u32 underlay_qpn; 435 u32 flags_en; 436 /* storage for qp sub type when core qp type is IB_QPT_DRIVER */ 437 enum ib_qp_type qp_sub_type; 438 }; 439 440 struct mlx5_ib_cq_buf { 441 struct mlx5_frag_buf_ctrl fbc; 442 struct mlx5_frag_buf frag_buf; 443 struct ib_umem *umem; 444 int cqe_size; 445 int nent; 446 }; 447 448 enum mlx5_ib_qp_flags { 449 MLX5_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO, 450 MLX5_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK, 451 MLX5_IB_QP_CROSS_CHANNEL = IB_QP_CREATE_CROSS_CHANNEL, 452 MLX5_IB_QP_MANAGED_SEND = IB_QP_CREATE_MANAGED_SEND, 453 MLX5_IB_QP_MANAGED_RECV = IB_QP_CREATE_MANAGED_RECV, 454 MLX5_IB_QP_SIGNATURE_HANDLING = 1 << 5, 455 /* QP uses 1 as its source QP number */ 456 MLX5_IB_QP_SQPN_QP1 = 1 << 6, 457 MLX5_IB_QP_CAP_SCATTER_FCS = 1 << 7, 458 MLX5_IB_QP_RSS = 1 << 8, 459 MLX5_IB_QP_CVLAN_STRIPPING = 1 << 9, 460 MLX5_IB_QP_UNDERLAY = 1 << 10, 461 MLX5_IB_QP_PCI_WRITE_END_PADDING = 1 << 11, 462 MLX5_IB_QP_TUNNEL_OFFLOAD = 1 << 12, 463 MLX5_IB_QP_PACKET_BASED_CREDIT = 1 << 13, 464 }; 465 466 struct mlx5_umr_wr { 467 struct ib_send_wr wr; 468 u64 virt_addr; 469 u64 offset; 470 struct ib_pd *pd; 471 unsigned int page_shift; 472 unsigned int xlt_size; 473 u64 length; 474 int access_flags; 475 u32 mkey; 476 }; 477 478 static inline const struct mlx5_umr_wr *umr_wr(const struct ib_send_wr *wr) 479 { 480 return container_of(wr, struct mlx5_umr_wr, wr); 481 } 482 483 struct mlx5_shared_mr_info { 484 int mr_id; 485 struct ib_umem *umem; 486 }; 487 488 enum mlx5_ib_cq_pr_flags { 489 MLX5_IB_CQ_PR_FLAGS_CQE_128_PAD = 1 << 0, 490 }; 491 492 struct mlx5_ib_cq { 493 struct ib_cq ibcq; 494 struct mlx5_core_cq mcq; 495 struct mlx5_ib_cq_buf buf; 496 struct mlx5_db db; 497 498 /* serialize access to the CQ 499 */ 500 spinlock_t lock; 501 502 /* protect resize cq 503 */ 504 struct mutex resize_mutex; 505 struct mlx5_ib_cq_buf *resize_buf; 506 struct ib_umem *resize_umem; 507 int cqe_size; 508 struct list_head list_send_qp; 509 struct list_head list_recv_qp; 510 u32 create_flags; 511 struct list_head wc_list; 512 enum ib_cq_notify_flags notify_flags; 513 struct work_struct notify_work; 514 u16 private_flags; /* Use mlx5_ib_cq_pr_flags */ 515 }; 516 517 struct mlx5_ib_wc { 518 struct ib_wc wc; 519 struct list_head list; 520 }; 521 522 struct mlx5_ib_srq { 523 struct ib_srq ibsrq; 524 struct mlx5_core_srq msrq; 525 struct mlx5_frag_buf buf; 526 struct mlx5_db db; 527 struct mlx5_frag_buf_ctrl fbc; 528 u64 *wrid; 529 /* protect SRQ hanlding 530 */ 531 spinlock_t lock; 532 int head; 533 int tail; 534 u16 wqe_ctr; 535 struct ib_umem *umem; 536 /* serialize arming a SRQ 537 */ 538 struct mutex mutex; 539 int wq_sig; 540 }; 541 542 struct mlx5_ib_xrcd { 543 struct ib_xrcd ibxrcd; 544 u32 xrcdn; 545 }; 546 547 enum mlx5_ib_mtt_access_flags { 548 MLX5_IB_MTT_READ = (1 << 0), 549 MLX5_IB_MTT_WRITE = (1 << 1), 550 }; 551 552 struct mlx5_ib_dm { 553 struct ib_dm ibdm; 554 phys_addr_t dev_addr; 555 }; 556 557 #define MLX5_IB_MTT_PRESENT (MLX5_IB_MTT_READ | MLX5_IB_MTT_WRITE) 558 559 #define MLX5_IB_DM_ALLOWED_ACCESS (IB_ACCESS_LOCAL_WRITE |\ 560 IB_ACCESS_REMOTE_WRITE |\ 561 IB_ACCESS_REMOTE_READ |\ 562 IB_ACCESS_REMOTE_ATOMIC |\ 563 IB_ZERO_BASED) 564 565 struct mlx5_ib_mr { 566 struct ib_mr ibmr; 567 void *descs; 568 dma_addr_t desc_map; 569 int ndescs; 570 int max_descs; 571 int desc_size; 572 int access_mode; 573 struct mlx5_core_mkey mmkey; 574 struct ib_umem *umem; 575 struct mlx5_shared_mr_info *smr_info; 576 struct list_head list; 577 int order; 578 bool allocated_from_cache; 579 int npages; 580 struct mlx5_ib_dev *dev; 581 u32 out[MLX5_ST_SZ_DW(create_mkey_out)]; 582 struct mlx5_core_sig_ctx *sig; 583 int live; 584 void *descs_alloc; 585 int access_flags; /* Needed for rereg MR */ 586 587 struct mlx5_ib_mr *parent; 588 atomic_t num_leaf_free; 589 wait_queue_head_t q_leaf_free; 590 struct mlx5_async_work cb_work; 591 }; 592 593 struct mlx5_ib_mw { 594 struct ib_mw ibmw; 595 struct mlx5_core_mkey mmkey; 596 int ndescs; 597 }; 598 599 struct mlx5_ib_umr_context { 600 struct ib_cqe cqe; 601 enum ib_wc_status status; 602 struct completion done; 603 }; 604 605 struct umr_common { 606 struct ib_pd *pd; 607 struct ib_cq *cq; 608 struct ib_qp *qp; 609 /* control access to UMR QP 610 */ 611 struct semaphore sem; 612 }; 613 614 enum { 615 MLX5_FMR_INVALID, 616 MLX5_FMR_VALID, 617 MLX5_FMR_BUSY, 618 }; 619 620 struct mlx5_cache_ent { 621 struct list_head head; 622 /* sync access to the cahce entry 623 */ 624 spinlock_t lock; 625 626 627 struct dentry *dir; 628 char name[4]; 629 u32 order; 630 u32 xlt; 631 u32 access_mode; 632 u32 page; 633 634 u32 size; 635 u32 cur; 636 u32 miss; 637 u32 limit; 638 639 struct dentry *fsize; 640 struct dentry *fcur; 641 struct dentry *fmiss; 642 struct dentry *flimit; 643 644 struct mlx5_ib_dev *dev; 645 struct work_struct work; 646 struct delayed_work dwork; 647 int pending; 648 struct completion compl; 649 }; 650 651 struct mlx5_mr_cache { 652 struct workqueue_struct *wq; 653 struct mlx5_cache_ent ent[MAX_MR_CACHE_ENTRIES]; 654 int stopped; 655 struct dentry *root; 656 unsigned long last_add; 657 }; 658 659 struct mlx5_ib_gsi_qp; 660 661 struct mlx5_ib_port_resources { 662 struct mlx5_ib_resources *devr; 663 struct mlx5_ib_gsi_qp *gsi; 664 struct work_struct pkey_change_work; 665 }; 666 667 struct mlx5_ib_resources { 668 struct ib_cq *c0; 669 struct ib_xrcd *x0; 670 struct ib_xrcd *x1; 671 struct ib_pd *p0; 672 struct ib_srq *s0; 673 struct ib_srq *s1; 674 struct mlx5_ib_port_resources ports[2]; 675 /* Protects changes to the port resources */ 676 struct mutex mutex; 677 }; 678 679 struct mlx5_ib_counters { 680 const char **names; 681 size_t *offsets; 682 u32 num_q_counters; 683 u32 num_cong_counters; 684 u32 num_ext_ppcnt_counters; 685 u16 set_id; 686 bool set_id_valid; 687 }; 688 689 struct mlx5_ib_multiport_info; 690 691 struct mlx5_ib_multiport { 692 struct mlx5_ib_multiport_info *mpi; 693 /* To be held when accessing the multiport info */ 694 spinlock_t mpi_lock; 695 }; 696 697 struct mlx5_ib_port { 698 struct mlx5_ib_counters cnts; 699 struct mlx5_ib_multiport mp; 700 struct mlx5_ib_dbg_cc_params *dbg_cc_params; 701 }; 702 703 struct mlx5_roce { 704 /* Protect mlx5_ib_get_netdev from invoking dev_hold() with a NULL 705 * netdev pointer 706 */ 707 rwlock_t netdev_lock; 708 struct net_device *netdev; 709 struct notifier_block nb; 710 atomic_t tx_port_affinity; 711 enum ib_port_state last_port_state; 712 struct mlx5_ib_dev *dev; 713 u8 native_port_num; 714 }; 715 716 struct mlx5_ib_dbg_param { 717 int offset; 718 struct mlx5_ib_dev *dev; 719 struct dentry *dentry; 720 u8 port_num; 721 }; 722 723 enum mlx5_ib_dbg_cc_types { 724 MLX5_IB_DBG_CC_RP_CLAMP_TGT_RATE, 725 MLX5_IB_DBG_CC_RP_CLAMP_TGT_RATE_ATI, 726 MLX5_IB_DBG_CC_RP_TIME_RESET, 727 MLX5_IB_DBG_CC_RP_BYTE_RESET, 728 MLX5_IB_DBG_CC_RP_THRESHOLD, 729 MLX5_IB_DBG_CC_RP_AI_RATE, 730 MLX5_IB_DBG_CC_RP_HAI_RATE, 731 MLX5_IB_DBG_CC_RP_MIN_DEC_FAC, 732 MLX5_IB_DBG_CC_RP_MIN_RATE, 733 MLX5_IB_DBG_CC_RP_RATE_TO_SET_ON_FIRST_CNP, 734 MLX5_IB_DBG_CC_RP_DCE_TCP_G, 735 MLX5_IB_DBG_CC_RP_DCE_TCP_RTT, 736 MLX5_IB_DBG_CC_RP_RATE_REDUCE_MONITOR_PERIOD, 737 MLX5_IB_DBG_CC_RP_INITIAL_ALPHA_VALUE, 738 MLX5_IB_DBG_CC_RP_GD, 739 MLX5_IB_DBG_CC_NP_CNP_DSCP, 740 MLX5_IB_DBG_CC_NP_CNP_PRIO_MODE, 741 MLX5_IB_DBG_CC_NP_CNP_PRIO, 742 MLX5_IB_DBG_CC_MAX, 743 }; 744 745 struct mlx5_ib_dbg_cc_params { 746 struct dentry *root; 747 struct mlx5_ib_dbg_param params[MLX5_IB_DBG_CC_MAX]; 748 }; 749 750 enum { 751 MLX5_MAX_DELAY_DROP_TIMEOUT_MS = 100, 752 }; 753 754 struct mlx5_ib_dbg_delay_drop { 755 struct dentry *dir_debugfs; 756 struct dentry *rqs_cnt_debugfs; 757 struct dentry *events_cnt_debugfs; 758 struct dentry *timeout_debugfs; 759 }; 760 761 struct mlx5_ib_delay_drop { 762 struct mlx5_ib_dev *dev; 763 struct work_struct delay_drop_work; 764 /* serialize setting of delay drop */ 765 struct mutex lock; 766 u32 timeout; 767 bool activate; 768 atomic_t events_cnt; 769 atomic_t rqs_cnt; 770 struct mlx5_ib_dbg_delay_drop *dbg; 771 }; 772 773 enum mlx5_ib_stages { 774 MLX5_IB_STAGE_INIT, 775 MLX5_IB_STAGE_FLOW_DB, 776 MLX5_IB_STAGE_CAPS, 777 MLX5_IB_STAGE_NON_DEFAULT_CB, 778 MLX5_IB_STAGE_ROCE, 779 MLX5_IB_STAGE_SRQ, 780 MLX5_IB_STAGE_DEVICE_RESOURCES, 781 MLX5_IB_STAGE_DEVICE_NOTIFIER, 782 MLX5_IB_STAGE_ODP, 783 MLX5_IB_STAGE_COUNTERS, 784 MLX5_IB_STAGE_CONG_DEBUGFS, 785 MLX5_IB_STAGE_UAR, 786 MLX5_IB_STAGE_BFREG, 787 MLX5_IB_STAGE_PRE_IB_REG_UMR, 788 MLX5_IB_STAGE_WHITELIST_UID, 789 MLX5_IB_STAGE_IB_REG, 790 MLX5_IB_STAGE_POST_IB_REG_UMR, 791 MLX5_IB_STAGE_DELAY_DROP, 792 MLX5_IB_STAGE_CLASS_ATTR, 793 MLX5_IB_STAGE_MAX, 794 }; 795 796 struct mlx5_ib_stage { 797 int (*init)(struct mlx5_ib_dev *dev); 798 void (*cleanup)(struct mlx5_ib_dev *dev); 799 }; 800 801 #define STAGE_CREATE(_stage, _init, _cleanup) \ 802 .stage[_stage] = {.init = _init, .cleanup = _cleanup} 803 804 struct mlx5_ib_profile { 805 struct mlx5_ib_stage stage[MLX5_IB_STAGE_MAX]; 806 }; 807 808 struct mlx5_ib_multiport_info { 809 struct list_head list; 810 struct mlx5_ib_dev *ibdev; 811 struct mlx5_core_dev *mdev; 812 struct notifier_block mdev_events; 813 struct completion unref_comp; 814 u64 sys_image_guid; 815 u32 mdev_refcnt; 816 bool is_master; 817 bool unaffiliate; 818 }; 819 820 struct mlx5_ib_flow_action { 821 struct ib_flow_action ib_action; 822 union { 823 struct { 824 u64 ib_flags; 825 struct mlx5_accel_esp_xfrm *ctx; 826 } esp_aes_gcm; 827 struct { 828 struct mlx5_ib_dev *dev; 829 u32 sub_type; 830 u32 action_id; 831 } flow_action_raw; 832 }; 833 }; 834 835 struct mlx5_memic { 836 struct mlx5_core_dev *dev; 837 spinlock_t memic_lock; 838 DECLARE_BITMAP(memic_alloc_pages, MLX5_MAX_MEMIC_PAGES); 839 }; 840 841 struct mlx5_read_counters_attr { 842 struct mlx5_fc *hw_cntrs_hndl; 843 u64 *out; 844 u32 flags; 845 }; 846 847 enum mlx5_ib_counters_type { 848 MLX5_IB_COUNTERS_FLOW, 849 }; 850 851 struct mlx5_ib_mcounters { 852 struct ib_counters ibcntrs; 853 enum mlx5_ib_counters_type type; 854 /* number of counters supported for this counters type */ 855 u32 counters_num; 856 struct mlx5_fc *hw_cntrs_hndl; 857 /* read function for this counters type */ 858 int (*read_counters)(struct ib_device *ibdev, 859 struct mlx5_read_counters_attr *read_attr); 860 /* max index set as part of create_flow */ 861 u32 cntrs_max_index; 862 /* number of counters data entries (<description,index> pair) */ 863 u32 ncounters; 864 /* counters data array for descriptions and indexes */ 865 struct mlx5_ib_flow_counters_desc *counters_data; 866 /* protects access to mcounters internal data */ 867 struct mutex mcntrs_mutex; 868 }; 869 870 static inline struct mlx5_ib_mcounters * 871 to_mcounters(struct ib_counters *ibcntrs) 872 { 873 return container_of(ibcntrs, struct mlx5_ib_mcounters, ibcntrs); 874 } 875 876 int parse_flow_flow_action(struct mlx5_ib_flow_action *maction, 877 bool is_egress, 878 struct mlx5_flow_act *action); 879 struct mlx5_ib_lb_state { 880 /* protect the user_td */ 881 struct mutex mutex; 882 u32 user_td; 883 int qps; 884 bool enabled; 885 }; 886 887 struct mlx5_ib_pf_eq { 888 struct mlx5_ib_dev *dev; 889 struct mlx5_eq *core; 890 struct work_struct work; 891 spinlock_t lock; /* Pagefaults spinlock */ 892 struct workqueue_struct *wq; 893 mempool_t *pool; 894 }; 895 896 struct mlx5_ib_dev { 897 struct ib_device ib_dev; 898 struct mlx5_core_dev *mdev; 899 struct notifier_block mdev_events; 900 struct mlx5_roce roce[MLX5_MAX_PORTS]; 901 int num_ports; 902 /* serialize update of capability mask 903 */ 904 struct mutex cap_mask_mutex; 905 bool ib_active; 906 struct umr_common umrc; 907 /* sync used page count stats 908 */ 909 struct mlx5_ib_resources devr; 910 struct mlx5_mr_cache cache; 911 struct timer_list delay_timer; 912 /* Prevents soft lock on massive reg MRs */ 913 struct mutex slow_path_mutex; 914 int fill_delay; 915 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 916 struct ib_odp_caps odp_caps; 917 u64 odp_max_size; 918 struct mlx5_ib_pf_eq odp_pf_eq; 919 920 /* 921 * Sleepable RCU that prevents destruction of MRs while they are still 922 * being used by a page fault handler. 923 */ 924 struct srcu_struct mr_srcu; 925 u32 null_mkey; 926 struct workqueue_struct *advise_mr_wq; 927 #endif 928 struct mlx5_ib_flow_db *flow_db; 929 /* protect resources needed as part of reset flow */ 930 spinlock_t reset_flow_resource_lock; 931 struct list_head qp_list; 932 /* Array with num_ports elements */ 933 struct mlx5_ib_port *port; 934 struct mlx5_sq_bfreg bfreg; 935 struct mlx5_sq_bfreg fp_bfreg; 936 struct mlx5_ib_delay_drop delay_drop; 937 const struct mlx5_ib_profile *profile; 938 struct mlx5_eswitch_rep *rep; 939 int lag_active; 940 941 struct mlx5_ib_lb_state lb; 942 u8 umr_fence; 943 struct list_head ib_dev_list; 944 u64 sys_image_guid; 945 struct mlx5_memic memic; 946 u16 devx_whitelist_uid; 947 struct mlx5_srq_table srq_table; 948 struct mlx5_async_ctx async_ctx; 949 }; 950 951 static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq) 952 { 953 return container_of(mcq, struct mlx5_ib_cq, mcq); 954 } 955 956 static inline struct mlx5_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd) 957 { 958 return container_of(ibxrcd, struct mlx5_ib_xrcd, ibxrcd); 959 } 960 961 static inline struct mlx5_ib_dev *to_mdev(struct ib_device *ibdev) 962 { 963 return container_of(ibdev, struct mlx5_ib_dev, ib_dev); 964 } 965 966 static inline struct mlx5_ib_cq *to_mcq(struct ib_cq *ibcq) 967 { 968 return container_of(ibcq, struct mlx5_ib_cq, ibcq); 969 } 970 971 static inline struct mlx5_ib_qp *to_mibqp(struct mlx5_core_qp *mqp) 972 { 973 return container_of(mqp, struct mlx5_ib_qp_base, mqp)->container_mibqp; 974 } 975 976 static inline struct mlx5_ib_rwq *to_mibrwq(struct mlx5_core_qp *core_qp) 977 { 978 return container_of(core_qp, struct mlx5_ib_rwq, core_qp); 979 } 980 981 static inline struct mlx5_ib_mr *to_mibmr(struct mlx5_core_mkey *mmkey) 982 { 983 return container_of(mmkey, struct mlx5_ib_mr, mmkey); 984 } 985 986 static inline struct mlx5_ib_pd *to_mpd(struct ib_pd *ibpd) 987 { 988 return container_of(ibpd, struct mlx5_ib_pd, ibpd); 989 } 990 991 static inline struct mlx5_ib_srq *to_msrq(struct ib_srq *ibsrq) 992 { 993 return container_of(ibsrq, struct mlx5_ib_srq, ibsrq); 994 } 995 996 static inline struct mlx5_ib_qp *to_mqp(struct ib_qp *ibqp) 997 { 998 return container_of(ibqp, struct mlx5_ib_qp, ibqp); 999 } 1000 1001 static inline struct mlx5_ib_rwq *to_mrwq(struct ib_wq *ibwq) 1002 { 1003 return container_of(ibwq, struct mlx5_ib_rwq, ibwq); 1004 } 1005 1006 static inline struct mlx5_ib_rwq_ind_table *to_mrwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl) 1007 { 1008 return container_of(ib_rwq_ind_tbl, struct mlx5_ib_rwq_ind_table, ib_rwq_ind_tbl); 1009 } 1010 1011 static inline struct mlx5_ib_srq *to_mibsrq(struct mlx5_core_srq *msrq) 1012 { 1013 return container_of(msrq, struct mlx5_ib_srq, msrq); 1014 } 1015 1016 static inline struct mlx5_ib_dm *to_mdm(struct ib_dm *ibdm) 1017 { 1018 return container_of(ibdm, struct mlx5_ib_dm, ibdm); 1019 } 1020 1021 static inline struct mlx5_ib_mr *to_mmr(struct ib_mr *ibmr) 1022 { 1023 return container_of(ibmr, struct mlx5_ib_mr, ibmr); 1024 } 1025 1026 static inline struct mlx5_ib_mw *to_mmw(struct ib_mw *ibmw) 1027 { 1028 return container_of(ibmw, struct mlx5_ib_mw, ibmw); 1029 } 1030 1031 static inline struct mlx5_ib_flow_action * 1032 to_mflow_act(struct ib_flow_action *ibact) 1033 { 1034 return container_of(ibact, struct mlx5_ib_flow_action, ib_action); 1035 } 1036 1037 int mlx5_ib_db_map_user(struct mlx5_ib_ucontext *context, unsigned long virt, 1038 struct mlx5_db *db); 1039 void mlx5_ib_db_unmap_user(struct mlx5_ib_ucontext *context, struct mlx5_db *db); 1040 void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq); 1041 void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq); 1042 void mlx5_ib_free_srq_wqe(struct mlx5_ib_srq *srq, int wqe_index); 1043 struct ib_ah *mlx5_ib_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr, 1044 u32 flags, struct ib_udata *udata); 1045 int mlx5_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr); 1046 int mlx5_ib_destroy_ah(struct ib_ah *ah, u32 flags); 1047 struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd, 1048 struct ib_srq_init_attr *init_attr, 1049 struct ib_udata *udata); 1050 int mlx5_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, 1051 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata); 1052 int mlx5_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr); 1053 int mlx5_ib_destroy_srq(struct ib_srq *srq); 1054 int mlx5_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr, 1055 const struct ib_recv_wr **bad_wr); 1056 int mlx5_ib_enable_lb(struct mlx5_ib_dev *dev, bool td, bool qp); 1057 void mlx5_ib_disable_lb(struct mlx5_ib_dev *dev, bool td, bool qp); 1058 struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd, 1059 struct ib_qp_init_attr *init_attr, 1060 struct ib_udata *udata); 1061 int mlx5_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 1062 int attr_mask, struct ib_udata *udata); 1063 int mlx5_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, 1064 struct ib_qp_init_attr *qp_init_attr); 1065 int mlx5_ib_destroy_qp(struct ib_qp *qp); 1066 void mlx5_ib_drain_sq(struct ib_qp *qp); 1067 void mlx5_ib_drain_rq(struct ib_qp *qp); 1068 int mlx5_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, 1069 const struct ib_send_wr **bad_wr); 1070 int mlx5_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr, 1071 const struct ib_recv_wr **bad_wr); 1072 int mlx5_ib_read_user_wqe(struct mlx5_ib_qp *qp, int send, int wqe_index, 1073 void *buffer, u32 length, 1074 struct mlx5_ib_qp_base *base); 1075 struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, 1076 const struct ib_cq_init_attr *attr, 1077 struct ib_ucontext *context, 1078 struct ib_udata *udata); 1079 int mlx5_ib_destroy_cq(struct ib_cq *cq); 1080 int mlx5_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); 1081 int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags); 1082 int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); 1083 int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata); 1084 struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc); 1085 struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 1086 u64 virt_addr, int access_flags, 1087 struct ib_udata *udata); 1088 int mlx5_ib_advise_mr(struct ib_pd *pd, 1089 enum ib_uverbs_advise_mr_advice advice, 1090 u32 flags, 1091 struct ib_sge *sg_list, 1092 u32 num_sge, 1093 struct uverbs_attr_bundle *attrs); 1094 struct ib_mw *mlx5_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type, 1095 struct ib_udata *udata); 1096 int mlx5_ib_dealloc_mw(struct ib_mw *mw); 1097 int mlx5_ib_update_xlt(struct mlx5_ib_mr *mr, u64 idx, int npages, 1098 int page_shift, int flags); 1099 struct mlx5_ib_mr *mlx5_ib_alloc_implicit_mr(struct mlx5_ib_pd *pd, 1100 int access_flags); 1101 void mlx5_ib_free_implicit_mr(struct mlx5_ib_mr *mr); 1102 int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start, 1103 u64 length, u64 virt_addr, int access_flags, 1104 struct ib_pd *pd, struct ib_udata *udata); 1105 int mlx5_ib_dereg_mr(struct ib_mr *ibmr); 1106 struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd, 1107 enum ib_mr_type mr_type, 1108 u32 max_num_sg); 1109 int mlx5_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents, 1110 unsigned int *sg_offset); 1111 int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, 1112 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 1113 const struct ib_mad_hdr *in, size_t in_mad_size, 1114 struct ib_mad_hdr *out, size_t *out_mad_size, 1115 u16 *out_mad_pkey_index); 1116 struct ib_xrcd *mlx5_ib_alloc_xrcd(struct ib_device *ibdev, 1117 struct ib_ucontext *context, 1118 struct ib_udata *udata); 1119 int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd); 1120 int mlx5_ib_get_buf_offset(u64 addr, int page_shift, u32 *offset); 1121 int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port); 1122 int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev, 1123 struct ib_smp *out_mad); 1124 int mlx5_query_mad_ifc_system_image_guid(struct ib_device *ibdev, 1125 __be64 *sys_image_guid); 1126 int mlx5_query_mad_ifc_max_pkeys(struct ib_device *ibdev, 1127 u16 *max_pkeys); 1128 int mlx5_query_mad_ifc_vendor_id(struct ib_device *ibdev, 1129 u32 *vendor_id); 1130 int mlx5_query_mad_ifc_node_desc(struct mlx5_ib_dev *dev, char *node_desc); 1131 int mlx5_query_mad_ifc_node_guid(struct mlx5_ib_dev *dev, __be64 *node_guid); 1132 int mlx5_query_mad_ifc_pkey(struct ib_device *ibdev, u8 port, u16 index, 1133 u16 *pkey); 1134 int mlx5_query_mad_ifc_gids(struct ib_device *ibdev, u8 port, int index, 1135 union ib_gid *gid); 1136 int mlx5_query_mad_ifc_port(struct ib_device *ibdev, u8 port, 1137 struct ib_port_attr *props); 1138 int mlx5_ib_query_port(struct ib_device *ibdev, u8 port, 1139 struct ib_port_attr *props); 1140 int mlx5_ib_init_fmr(struct mlx5_ib_dev *dev); 1141 void mlx5_ib_cleanup_fmr(struct mlx5_ib_dev *dev); 1142 void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, 1143 unsigned long max_page_shift, 1144 int *count, int *shift, 1145 int *ncont, int *order); 1146 void __mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem, 1147 int page_shift, size_t offset, size_t num_pages, 1148 __be64 *pas, int access_flags); 1149 void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem, 1150 int page_shift, __be64 *pas, int access_flags); 1151 void mlx5_ib_copy_pas(u64 *old, u64 *new, int step, int num); 1152 int mlx5_ib_get_cqe_size(struct ib_cq *ibcq); 1153 int mlx5_mr_cache_init(struct mlx5_ib_dev *dev); 1154 int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev); 1155 1156 struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, int entry); 1157 void mlx5_mr_cache_free(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr); 1158 int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask, 1159 struct ib_mr_status *mr_status); 1160 struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd, 1161 struct ib_wq_init_attr *init_attr, 1162 struct ib_udata *udata); 1163 int mlx5_ib_destroy_wq(struct ib_wq *wq); 1164 int mlx5_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr, 1165 u32 wq_attr_mask, struct ib_udata *udata); 1166 struct ib_rwq_ind_table *mlx5_ib_create_rwq_ind_table(struct ib_device *device, 1167 struct ib_rwq_ind_table_init_attr *init_attr, 1168 struct ib_udata *udata); 1169 int mlx5_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table); 1170 bool mlx5_ib_dc_atomic_is_supported(struct mlx5_ib_dev *dev); 1171 struct ib_dm *mlx5_ib_alloc_dm(struct ib_device *ibdev, 1172 struct ib_ucontext *context, 1173 struct ib_dm_alloc_attr *attr, 1174 struct uverbs_attr_bundle *attrs); 1175 int mlx5_ib_dealloc_dm(struct ib_dm *ibdm); 1176 struct ib_mr *mlx5_ib_reg_dm_mr(struct ib_pd *pd, struct ib_dm *dm, 1177 struct ib_dm_mr_attr *attr, 1178 struct uverbs_attr_bundle *attrs); 1179 1180 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 1181 void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev); 1182 int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev); 1183 void mlx5_ib_odp_cleanup_one(struct mlx5_ib_dev *ibdev); 1184 int __init mlx5_ib_odp_init(void); 1185 void mlx5_ib_odp_cleanup(void); 1186 void mlx5_ib_invalidate_range(struct ib_umem_odp *umem_odp, unsigned long start, 1187 unsigned long end); 1188 void mlx5_odp_init_mr_cache_entry(struct mlx5_cache_ent *ent); 1189 void mlx5_odp_populate_klm(struct mlx5_klm *pklm, size_t offset, 1190 size_t nentries, struct mlx5_ib_mr *mr, int flags); 1191 1192 int mlx5_ib_advise_mr_prefetch(struct ib_pd *pd, 1193 enum ib_uverbs_advise_mr_advice advice, 1194 u32 flags, struct ib_sge *sg_list, u32 num_sge); 1195 #else /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ 1196 static inline void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev) 1197 { 1198 return; 1199 } 1200 1201 static inline int mlx5_ib_odp_init_one(struct mlx5_ib_dev *ibdev) { return 0; } 1202 static inline void mlx5_ib_odp_cleanup_one(struct mlx5_ib_dev *ibdev) {} 1203 static inline int mlx5_ib_odp_init(void) { return 0; } 1204 static inline void mlx5_ib_odp_cleanup(void) {} 1205 static inline void mlx5_odp_init_mr_cache_entry(struct mlx5_cache_ent *ent) {} 1206 static inline void mlx5_odp_populate_klm(struct mlx5_klm *pklm, size_t offset, 1207 size_t nentries, struct mlx5_ib_mr *mr, 1208 int flags) {} 1209 1210 static inline int 1211 mlx5_ib_advise_mr_prefetch(struct ib_pd *pd, 1212 enum ib_uverbs_advise_mr_advice advice, u32 flags, 1213 struct ib_sge *sg_list, u32 num_sge) 1214 { 1215 return -EOPNOTSUPP; 1216 } 1217 #endif /* CONFIG_INFINIBAND_ON_DEMAND_PAGING */ 1218 1219 /* Needed for rep profile */ 1220 int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev); 1221 void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev); 1222 int mlx5_ib_stage_rep_flow_db_init(struct mlx5_ib_dev *dev); 1223 int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev); 1224 int mlx5_ib_stage_rep_non_default_cb(struct mlx5_ib_dev *dev); 1225 int mlx5_ib_stage_rep_roce_init(struct mlx5_ib_dev *dev); 1226 void mlx5_ib_stage_rep_roce_cleanup(struct mlx5_ib_dev *dev); 1227 int mlx5_ib_stage_dev_res_init(struct mlx5_ib_dev *dev); 1228 void mlx5_ib_stage_dev_res_cleanup(struct mlx5_ib_dev *dev); 1229 int mlx5_ib_stage_counters_init(struct mlx5_ib_dev *dev); 1230 void mlx5_ib_stage_counters_cleanup(struct mlx5_ib_dev *dev); 1231 int mlx5_ib_stage_bfrag_init(struct mlx5_ib_dev *dev); 1232 void mlx5_ib_stage_bfrag_cleanup(struct mlx5_ib_dev *dev); 1233 void mlx5_ib_stage_pre_ib_reg_umr_cleanup(struct mlx5_ib_dev *dev); 1234 int mlx5_ib_stage_ib_reg_init(struct mlx5_ib_dev *dev); 1235 void mlx5_ib_stage_ib_reg_cleanup(struct mlx5_ib_dev *dev); 1236 int mlx5_ib_stage_post_ib_reg_umr_init(struct mlx5_ib_dev *dev); 1237 void __mlx5_ib_remove(struct mlx5_ib_dev *dev, 1238 const struct mlx5_ib_profile *profile, 1239 int stage); 1240 void *__mlx5_ib_add(struct mlx5_ib_dev *dev, 1241 const struct mlx5_ib_profile *profile); 1242 1243 int mlx5_ib_get_vf_config(struct ib_device *device, int vf, 1244 u8 port, struct ifla_vf_info *info); 1245 int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf, 1246 u8 port, int state); 1247 int mlx5_ib_get_vf_stats(struct ib_device *device, int vf, 1248 u8 port, struct ifla_vf_stats *stats); 1249 int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u8 port, 1250 u64 guid, int type); 1251 1252 __be16 mlx5_get_roce_udp_sport(struct mlx5_ib_dev *dev, 1253 const struct ib_gid_attr *attr); 1254 1255 void mlx5_ib_cleanup_cong_debugfs(struct mlx5_ib_dev *dev, u8 port_num); 1256 int mlx5_ib_init_cong_debugfs(struct mlx5_ib_dev *dev, u8 port_num); 1257 1258 /* GSI QP helper functions */ 1259 struct ib_qp *mlx5_ib_gsi_create_qp(struct ib_pd *pd, 1260 struct ib_qp_init_attr *init_attr); 1261 int mlx5_ib_gsi_destroy_qp(struct ib_qp *qp); 1262 int mlx5_ib_gsi_modify_qp(struct ib_qp *qp, struct ib_qp_attr *attr, 1263 int attr_mask); 1264 int mlx5_ib_gsi_query_qp(struct ib_qp *qp, struct ib_qp_attr *qp_attr, 1265 int qp_attr_mask, 1266 struct ib_qp_init_attr *qp_init_attr); 1267 int mlx5_ib_gsi_post_send(struct ib_qp *qp, const struct ib_send_wr *wr, 1268 const struct ib_send_wr **bad_wr); 1269 int mlx5_ib_gsi_post_recv(struct ib_qp *qp, const struct ib_recv_wr *wr, 1270 const struct ib_recv_wr **bad_wr); 1271 void mlx5_ib_gsi_pkey_change(struct mlx5_ib_gsi_qp *gsi); 1272 1273 int mlx5_ib_generate_wc(struct ib_cq *ibcq, struct ib_wc *wc); 1274 1275 void mlx5_ib_free_bfreg(struct mlx5_ib_dev *dev, struct mlx5_bfreg_info *bfregi, 1276 int bfregn); 1277 struct mlx5_ib_dev *mlx5_ib_get_ibdev_from_mpi(struct mlx5_ib_multiport_info *mpi); 1278 struct mlx5_core_dev *mlx5_ib_get_native_port_mdev(struct mlx5_ib_dev *dev, 1279 u8 ib_port_num, 1280 u8 *native_port_num); 1281 void mlx5_ib_put_native_port_mdev(struct mlx5_ib_dev *dev, 1282 u8 port_num); 1283 1284 #if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS) 1285 int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user); 1286 void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid); 1287 const struct uverbs_object_tree_def *mlx5_ib_get_devx_tree(void); 1288 extern const struct uapi_definition mlx5_ib_devx_defs[]; 1289 extern const struct uapi_definition mlx5_ib_flow_defs[]; 1290 struct mlx5_ib_flow_handler *mlx5_ib_raw_fs_rule_add( 1291 struct mlx5_ib_dev *dev, struct mlx5_ib_flow_matcher *fs_matcher, 1292 struct mlx5_flow_act *flow_act, u32 counter_id, 1293 void *cmd_in, int inlen, int dest_id, int dest_type); 1294 bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, int *dest_type); 1295 bool mlx5_ib_devx_is_flow_counter(void *obj, u32 *counter_id); 1296 int mlx5_ib_get_flow_trees(const struct uverbs_object_tree_def **root); 1297 void mlx5_ib_destroy_flow_action_raw(struct mlx5_ib_flow_action *maction); 1298 #else 1299 static inline int 1300 mlx5_ib_devx_create(struct mlx5_ib_dev *dev, 1301 bool is_user) { return -EOPNOTSUPP; } 1302 static inline void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid) {} 1303 static inline bool mlx5_ib_devx_is_flow_dest(void *obj, int *dest_id, 1304 int *dest_type) 1305 { 1306 return false; 1307 } 1308 static inline void 1309 mlx5_ib_destroy_flow_action_raw(struct mlx5_ib_flow_action *maction) 1310 { 1311 return; 1312 }; 1313 #endif 1314 static inline void init_query_mad(struct ib_smp *mad) 1315 { 1316 mad->base_version = 1; 1317 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; 1318 mad->class_version = 1; 1319 mad->method = IB_MGMT_METHOD_GET; 1320 } 1321 1322 static inline u8 convert_access(int acc) 1323 { 1324 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX5_PERM_ATOMIC : 0) | 1325 (acc & IB_ACCESS_REMOTE_WRITE ? MLX5_PERM_REMOTE_WRITE : 0) | 1326 (acc & IB_ACCESS_REMOTE_READ ? MLX5_PERM_REMOTE_READ : 0) | 1327 (acc & IB_ACCESS_LOCAL_WRITE ? MLX5_PERM_LOCAL_WRITE : 0) | 1328 MLX5_PERM_LOCAL_READ; 1329 } 1330 1331 static inline int is_qp1(enum ib_qp_type qp_type) 1332 { 1333 return qp_type == MLX5_IB_QPT_HW_GSI; 1334 } 1335 1336 #define MLX5_MAX_UMR_SHIFT 16 1337 #define MLX5_MAX_UMR_PAGES (1 << MLX5_MAX_UMR_SHIFT) 1338 1339 static inline u32 check_cq_create_flags(u32 flags) 1340 { 1341 /* 1342 * It returns non-zero value for unsupported CQ 1343 * create flags, otherwise it returns zero. 1344 */ 1345 return (flags & ~(IB_UVERBS_CQ_FLAGS_IGNORE_OVERRUN | 1346 IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION)); 1347 } 1348 1349 static inline int verify_assign_uidx(u8 cqe_version, u32 cmd_uidx, 1350 u32 *user_index) 1351 { 1352 if (cqe_version) { 1353 if ((cmd_uidx == MLX5_IB_DEFAULT_UIDX) || 1354 (cmd_uidx & ~MLX5_USER_ASSIGNED_UIDX_MASK)) 1355 return -EINVAL; 1356 *user_index = cmd_uidx; 1357 } else { 1358 *user_index = MLX5_IB_DEFAULT_UIDX; 1359 } 1360 1361 return 0; 1362 } 1363 1364 static inline int get_qp_user_index(struct mlx5_ib_ucontext *ucontext, 1365 struct mlx5_ib_create_qp *ucmd, 1366 int inlen, 1367 u32 *user_index) 1368 { 1369 u8 cqe_version = ucontext->cqe_version; 1370 1371 if (field_avail(struct mlx5_ib_create_qp, uidx, inlen) && 1372 !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX)) 1373 return 0; 1374 1375 if (!!(field_avail(struct mlx5_ib_create_qp, uidx, inlen) != 1376 !!cqe_version)) 1377 return -EINVAL; 1378 1379 return verify_assign_uidx(cqe_version, ucmd->uidx, user_index); 1380 } 1381 1382 static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext, 1383 struct mlx5_ib_create_srq *ucmd, 1384 int inlen, 1385 u32 *user_index) 1386 { 1387 u8 cqe_version = ucontext->cqe_version; 1388 1389 if (field_avail(struct mlx5_ib_create_srq, uidx, inlen) && 1390 !cqe_version && (ucmd->uidx == MLX5_IB_DEFAULT_UIDX)) 1391 return 0; 1392 1393 if (!!(field_avail(struct mlx5_ib_create_srq, uidx, inlen) != 1394 !!cqe_version)) 1395 return -EINVAL; 1396 1397 return verify_assign_uidx(cqe_version, ucmd->uidx, user_index); 1398 } 1399 1400 static inline int get_uars_per_sys_page(struct mlx5_ib_dev *dev, bool lib_support) 1401 { 1402 return lib_support && MLX5_CAP_GEN(dev->mdev, uar_4k) ? 1403 MLX5_UARS_IN_PAGE : 1; 1404 } 1405 1406 static inline int get_num_static_uars(struct mlx5_ib_dev *dev, 1407 struct mlx5_bfreg_info *bfregi) 1408 { 1409 return get_uars_per_sys_page(dev, bfregi->lib_uar_4k) * bfregi->num_static_sys_pages; 1410 } 1411 1412 unsigned long mlx5_ib_get_xlt_emergency_page(void); 1413 void mlx5_ib_put_xlt_emergency_page(void); 1414 1415 int bfregn_to_uar_index(struct mlx5_ib_dev *dev, 1416 struct mlx5_bfreg_info *bfregi, u32 bfregn, 1417 bool dyn_bfreg); 1418 #endif /* MLX5_IB_H */ 1419