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_DRIVER_H 34 #define MLX5_DRIVER_H 35 36 #include <linux/kernel.h> 37 #include <linux/completion.h> 38 #include <linux/pci.h> 39 #include <linux/spinlock_types.h> 40 #include <linux/semaphore.h> 41 #include <linux/slab.h> 42 #include <linux/vmalloc.h> 43 #include <linux/radix-tree.h> 44 #include <linux/workqueue.h> 45 #include <linux/mempool.h> 46 #include <linux/interrupt.h> 47 #include <linux/idr.h> 48 49 #include <linux/mlx5/device.h> 50 #include <linux/mlx5/doorbell.h> 51 #include <linux/mlx5/srq.h> 52 53 enum { 54 MLX5_BOARD_ID_LEN = 64, 55 MLX5_MAX_NAME_LEN = 16, 56 }; 57 58 enum { 59 /* one minute for the sake of bringup. Generally, commands must always 60 * complete and we may need to increase this timeout value 61 */ 62 MLX5_CMD_TIMEOUT_MSEC = 60 * 1000, 63 MLX5_CMD_WQ_MAX_NAME = 32, 64 }; 65 66 enum { 67 CMD_OWNER_SW = 0x0, 68 CMD_OWNER_HW = 0x1, 69 CMD_STATUS_SUCCESS = 0, 70 }; 71 72 enum mlx5_sqp_t { 73 MLX5_SQP_SMI = 0, 74 MLX5_SQP_GSI = 1, 75 MLX5_SQP_IEEE_1588 = 2, 76 MLX5_SQP_SNIFFER = 3, 77 MLX5_SQP_SYNC_UMR = 4, 78 }; 79 80 enum { 81 MLX5_MAX_PORTS = 2, 82 }; 83 84 enum { 85 MLX5_EQ_VEC_PAGES = 0, 86 MLX5_EQ_VEC_CMD = 1, 87 MLX5_EQ_VEC_ASYNC = 2, 88 MLX5_EQ_VEC_PFAULT = 3, 89 MLX5_EQ_VEC_COMP_BASE, 90 }; 91 92 enum { 93 MLX5_MAX_IRQ_NAME = 32 94 }; 95 96 enum { 97 MLX5_ATOMIC_MODE_IB_COMP = 1 << 16, 98 MLX5_ATOMIC_MODE_CX = 2 << 16, 99 MLX5_ATOMIC_MODE_8B = 3 << 16, 100 MLX5_ATOMIC_MODE_16B = 4 << 16, 101 MLX5_ATOMIC_MODE_32B = 5 << 16, 102 MLX5_ATOMIC_MODE_64B = 6 << 16, 103 MLX5_ATOMIC_MODE_128B = 7 << 16, 104 MLX5_ATOMIC_MODE_256B = 8 << 16, 105 }; 106 107 enum { 108 MLX5_REG_QETCR = 0x4005, 109 MLX5_REG_QTCT = 0x400a, 110 MLX5_REG_DCBX_PARAM = 0x4020, 111 MLX5_REG_DCBX_APP = 0x4021, 112 MLX5_REG_FPGA_CAP = 0x4022, 113 MLX5_REG_FPGA_CTRL = 0x4023, 114 MLX5_REG_FPGA_ACCESS_REG = 0x4024, 115 MLX5_REG_PCAP = 0x5001, 116 MLX5_REG_PMTU = 0x5003, 117 MLX5_REG_PTYS = 0x5004, 118 MLX5_REG_PAOS = 0x5006, 119 MLX5_REG_PFCC = 0x5007, 120 MLX5_REG_PPCNT = 0x5008, 121 MLX5_REG_PMAOS = 0x5012, 122 MLX5_REG_PUDE = 0x5009, 123 MLX5_REG_PMPE = 0x5010, 124 MLX5_REG_PELC = 0x500e, 125 MLX5_REG_PVLC = 0x500f, 126 MLX5_REG_PCMR = 0x5041, 127 MLX5_REG_PMLP = 0x5002, 128 MLX5_REG_PCAM = 0x507f, 129 MLX5_REG_NODE_DESC = 0x6001, 130 MLX5_REG_HOST_ENDIANNESS = 0x7004, 131 MLX5_REG_MCIA = 0x9014, 132 MLX5_REG_MLCR = 0x902b, 133 MLX5_REG_MPCNT = 0x9051, 134 MLX5_REG_MTPPS = 0x9053, 135 MLX5_REG_MTPPSE = 0x9054, 136 MLX5_REG_MCQI = 0x9061, 137 MLX5_REG_MCC = 0x9062, 138 MLX5_REG_MCDA = 0x9063, 139 MLX5_REG_MCAM = 0x907f, 140 }; 141 142 enum mlx5_dcbx_oper_mode { 143 MLX5E_DCBX_PARAM_VER_OPER_HOST = 0x0, 144 MLX5E_DCBX_PARAM_VER_OPER_AUTO = 0x3, 145 }; 146 147 enum { 148 MLX5_ATOMIC_OPS_CMP_SWAP = 1 << 0, 149 MLX5_ATOMIC_OPS_FETCH_ADD = 1 << 1, 150 }; 151 152 enum mlx5_page_fault_resume_flags { 153 MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0, 154 MLX5_PAGE_FAULT_RESUME_WRITE = 1 << 1, 155 MLX5_PAGE_FAULT_RESUME_RDMA = 1 << 2, 156 MLX5_PAGE_FAULT_RESUME_ERROR = 1 << 7, 157 }; 158 159 enum dbg_rsc_type { 160 MLX5_DBG_RSC_QP, 161 MLX5_DBG_RSC_EQ, 162 MLX5_DBG_RSC_CQ, 163 }; 164 165 enum port_state_policy { 166 MLX5_POLICY_DOWN = 0, 167 MLX5_POLICY_UP = 1, 168 MLX5_POLICY_FOLLOW = 2, 169 MLX5_POLICY_INVALID = 0xffffffff 170 }; 171 172 struct mlx5_field_desc { 173 struct dentry *dent; 174 int i; 175 }; 176 177 struct mlx5_rsc_debug { 178 struct mlx5_core_dev *dev; 179 void *object; 180 enum dbg_rsc_type type; 181 struct dentry *root; 182 struct mlx5_field_desc fields[0]; 183 }; 184 185 enum mlx5_dev_event { 186 MLX5_DEV_EVENT_SYS_ERROR, 187 MLX5_DEV_EVENT_PORT_UP, 188 MLX5_DEV_EVENT_PORT_DOWN, 189 MLX5_DEV_EVENT_PORT_INITIALIZED, 190 MLX5_DEV_EVENT_LID_CHANGE, 191 MLX5_DEV_EVENT_PKEY_CHANGE, 192 MLX5_DEV_EVENT_GUID_CHANGE, 193 MLX5_DEV_EVENT_CLIENT_REREG, 194 MLX5_DEV_EVENT_PPS, 195 MLX5_DEV_EVENT_DELAY_DROP_TIMEOUT, 196 }; 197 198 enum mlx5_port_status { 199 MLX5_PORT_UP = 1, 200 MLX5_PORT_DOWN = 2, 201 }; 202 203 enum mlx5_eq_type { 204 MLX5_EQ_TYPE_COMP, 205 MLX5_EQ_TYPE_ASYNC, 206 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 207 MLX5_EQ_TYPE_PF, 208 #endif 209 }; 210 211 struct mlx5_bfreg_info { 212 u32 *sys_pages; 213 int num_low_latency_bfregs; 214 unsigned int *count; 215 216 /* 217 * protect bfreg allocation data structs 218 */ 219 struct mutex lock; 220 u32 ver; 221 bool lib_uar_4k; 222 u32 num_sys_pages; 223 }; 224 225 struct mlx5_cmd_first { 226 __be32 data[4]; 227 }; 228 229 struct mlx5_cmd_msg { 230 struct list_head list; 231 struct cmd_msg_cache *parent; 232 u32 len; 233 struct mlx5_cmd_first first; 234 struct mlx5_cmd_mailbox *next; 235 }; 236 237 struct mlx5_cmd_debug { 238 struct dentry *dbg_root; 239 struct dentry *dbg_in; 240 struct dentry *dbg_out; 241 struct dentry *dbg_outlen; 242 struct dentry *dbg_status; 243 struct dentry *dbg_run; 244 void *in_msg; 245 void *out_msg; 246 u8 status; 247 u16 inlen; 248 u16 outlen; 249 }; 250 251 struct cmd_msg_cache { 252 /* protect block chain allocations 253 */ 254 spinlock_t lock; 255 struct list_head head; 256 unsigned int max_inbox_size; 257 unsigned int num_ent; 258 }; 259 260 enum { 261 MLX5_NUM_COMMAND_CACHES = 5, 262 }; 263 264 struct mlx5_cmd_stats { 265 u64 sum; 266 u64 n; 267 struct dentry *root; 268 struct dentry *avg; 269 struct dentry *count; 270 /* protect command average calculations */ 271 spinlock_t lock; 272 }; 273 274 struct mlx5_cmd { 275 void *cmd_alloc_buf; 276 dma_addr_t alloc_dma; 277 int alloc_size; 278 void *cmd_buf; 279 dma_addr_t dma; 280 u16 cmdif_rev; 281 u8 log_sz; 282 u8 log_stride; 283 int max_reg_cmds; 284 int events; 285 u32 __iomem *vector; 286 287 /* protect command queue allocations 288 */ 289 spinlock_t alloc_lock; 290 291 /* protect token allocations 292 */ 293 spinlock_t token_lock; 294 u8 token; 295 unsigned long bitmask; 296 char wq_name[MLX5_CMD_WQ_MAX_NAME]; 297 struct workqueue_struct *wq; 298 struct semaphore sem; 299 struct semaphore pages_sem; 300 int mode; 301 struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS]; 302 struct dma_pool *pool; 303 struct mlx5_cmd_debug dbg; 304 struct cmd_msg_cache cache[MLX5_NUM_COMMAND_CACHES]; 305 int checksum_disabled; 306 struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX]; 307 }; 308 309 struct mlx5_port_caps { 310 int gid_table_len; 311 int pkey_table_len; 312 u8 ext_port_cap; 313 bool has_smi; 314 }; 315 316 struct mlx5_cmd_mailbox { 317 void *buf; 318 dma_addr_t dma; 319 struct mlx5_cmd_mailbox *next; 320 }; 321 322 struct mlx5_buf_list { 323 void *buf; 324 dma_addr_t map; 325 }; 326 327 struct mlx5_buf { 328 struct mlx5_buf_list direct; 329 int npages; 330 int size; 331 u8 page_shift; 332 }; 333 334 struct mlx5_frag_buf { 335 struct mlx5_buf_list *frags; 336 int npages; 337 int size; 338 u8 page_shift; 339 }; 340 341 struct mlx5_eq_tasklet { 342 struct list_head list; 343 struct list_head process_list; 344 struct tasklet_struct task; 345 /* lock on completion tasklet list */ 346 spinlock_t lock; 347 }; 348 349 struct mlx5_eq_pagefault { 350 struct work_struct work; 351 /* Pagefaults lock */ 352 spinlock_t lock; 353 struct workqueue_struct *wq; 354 mempool_t *pool; 355 }; 356 357 struct mlx5_eq { 358 struct mlx5_core_dev *dev; 359 __be32 __iomem *doorbell; 360 u32 cons_index; 361 struct mlx5_buf buf; 362 int size; 363 unsigned int irqn; 364 u8 eqn; 365 int nent; 366 u64 mask; 367 struct list_head list; 368 int index; 369 struct mlx5_rsc_debug *dbg; 370 enum mlx5_eq_type type; 371 union { 372 struct mlx5_eq_tasklet tasklet_ctx; 373 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 374 struct mlx5_eq_pagefault pf_ctx; 375 #endif 376 }; 377 }; 378 379 struct mlx5_core_psv { 380 u32 psv_idx; 381 struct psv_layout { 382 u32 pd; 383 u16 syndrome; 384 u16 reserved; 385 u16 bg; 386 u16 app_tag; 387 u32 ref_tag; 388 } psv; 389 }; 390 391 struct mlx5_core_sig_ctx { 392 struct mlx5_core_psv psv_memory; 393 struct mlx5_core_psv psv_wire; 394 struct ib_sig_err err_item; 395 bool sig_status_checked; 396 bool sig_err_exists; 397 u32 sigerr_count; 398 }; 399 400 enum { 401 MLX5_MKEY_MR = 1, 402 MLX5_MKEY_MW, 403 }; 404 405 struct mlx5_core_mkey { 406 u64 iova; 407 u64 size; 408 u32 key; 409 u32 pd; 410 u32 type; 411 }; 412 413 #define MLX5_24BIT_MASK ((1 << 24) - 1) 414 415 enum mlx5_res_type { 416 MLX5_RES_QP = MLX5_EVENT_QUEUE_TYPE_QP, 417 MLX5_RES_RQ = MLX5_EVENT_QUEUE_TYPE_RQ, 418 MLX5_RES_SQ = MLX5_EVENT_QUEUE_TYPE_SQ, 419 MLX5_RES_SRQ = 3, 420 MLX5_RES_XSRQ = 4, 421 MLX5_RES_XRQ = 5, 422 }; 423 424 struct mlx5_core_rsc_common { 425 enum mlx5_res_type res; 426 atomic_t refcount; 427 struct completion free; 428 }; 429 430 struct mlx5_core_srq { 431 struct mlx5_core_rsc_common common; /* must be first */ 432 u32 srqn; 433 int max; 434 int max_gs; 435 int max_avail_gather; 436 int wqe_shift; 437 void (*event) (struct mlx5_core_srq *, enum mlx5_event); 438 439 atomic_t refcount; 440 struct completion free; 441 }; 442 443 struct mlx5_eq_table { 444 void __iomem *update_ci; 445 void __iomem *update_arm_ci; 446 struct list_head comp_eqs_list; 447 struct mlx5_eq pages_eq; 448 struct mlx5_eq async_eq; 449 struct mlx5_eq cmd_eq; 450 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 451 struct mlx5_eq pfault_eq; 452 #endif 453 int num_comp_vectors; 454 /* protect EQs list 455 */ 456 spinlock_t lock; 457 }; 458 459 struct mlx5_uars_page { 460 void __iomem *map; 461 bool wc; 462 u32 index; 463 struct list_head list; 464 unsigned int bfregs; 465 unsigned long *reg_bitmap; /* for non fast path bf regs */ 466 unsigned long *fp_bitmap; 467 unsigned int reg_avail; 468 unsigned int fp_avail; 469 struct kref ref_count; 470 struct mlx5_core_dev *mdev; 471 }; 472 473 struct mlx5_bfreg_head { 474 /* protect blue flame registers allocations */ 475 struct mutex lock; 476 struct list_head list; 477 }; 478 479 struct mlx5_bfreg_data { 480 struct mlx5_bfreg_head reg_head; 481 struct mlx5_bfreg_head wc_head; 482 }; 483 484 struct mlx5_sq_bfreg { 485 void __iomem *map; 486 struct mlx5_uars_page *up; 487 bool wc; 488 u32 index; 489 unsigned int offset; 490 }; 491 492 struct mlx5_core_health { 493 struct health_buffer __iomem *health; 494 __be32 __iomem *health_counter; 495 struct timer_list timer; 496 u32 prev; 497 int miss_counter; 498 bool sick; 499 /* wq spinlock to synchronize draining */ 500 spinlock_t wq_lock; 501 struct workqueue_struct *wq; 502 unsigned long flags; 503 struct work_struct work; 504 struct delayed_work recover_work; 505 }; 506 507 struct mlx5_cq_table { 508 /* protect radix tree 509 */ 510 spinlock_t lock; 511 struct radix_tree_root tree; 512 }; 513 514 struct mlx5_qp_table { 515 /* protect radix tree 516 */ 517 spinlock_t lock; 518 struct radix_tree_root tree; 519 }; 520 521 struct mlx5_srq_table { 522 /* protect radix tree 523 */ 524 spinlock_t lock; 525 struct radix_tree_root tree; 526 }; 527 528 struct mlx5_mkey_table { 529 /* protect radix tree 530 */ 531 rwlock_t lock; 532 struct radix_tree_root tree; 533 }; 534 535 struct mlx5_vf_context { 536 int enabled; 537 u64 port_guid; 538 u64 node_guid; 539 enum port_state_policy policy; 540 }; 541 542 struct mlx5_core_sriov { 543 struct mlx5_vf_context *vfs_ctx; 544 int num_vfs; 545 int enabled_vfs; 546 }; 547 548 struct mlx5_irq_info { 549 char name[MLX5_MAX_IRQ_NAME]; 550 }; 551 552 struct mlx5_fc_stats { 553 struct rb_root counters; 554 struct list_head addlist; 555 /* protect addlist add/splice operations */ 556 spinlock_t addlist_lock; 557 558 struct workqueue_struct *wq; 559 struct delayed_work work; 560 unsigned long next_query; 561 unsigned long sampling_interval; /* jiffies */ 562 }; 563 564 struct mlx5_mpfs; 565 struct mlx5_eswitch; 566 struct mlx5_lag; 567 struct mlx5_pagefault; 568 569 struct mlx5_rl_entry { 570 u32 rate; 571 u16 index; 572 u16 refcount; 573 }; 574 575 struct mlx5_rl_table { 576 /* protect rate limit table */ 577 struct mutex rl_lock; 578 u16 max_size; 579 u32 max_rate; 580 u32 min_rate; 581 struct mlx5_rl_entry *rl_entry; 582 }; 583 584 enum port_module_event_status_type { 585 MLX5_MODULE_STATUS_PLUGGED = 0x1, 586 MLX5_MODULE_STATUS_UNPLUGGED = 0x2, 587 MLX5_MODULE_STATUS_ERROR = 0x3, 588 MLX5_MODULE_STATUS_NUM = 0x3, 589 }; 590 591 enum port_module_event_error_type { 592 MLX5_MODULE_EVENT_ERROR_POWER_BUDGET_EXCEEDED, 593 MLX5_MODULE_EVENT_ERROR_LONG_RANGE_FOR_NON_MLNX_CABLE_MODULE, 594 MLX5_MODULE_EVENT_ERROR_BUS_STUCK, 595 MLX5_MODULE_EVENT_ERROR_NO_EEPROM_RETRY_TIMEOUT, 596 MLX5_MODULE_EVENT_ERROR_ENFORCE_PART_NUMBER_LIST, 597 MLX5_MODULE_EVENT_ERROR_UNKNOWN_IDENTIFIER, 598 MLX5_MODULE_EVENT_ERROR_HIGH_TEMPERATURE, 599 MLX5_MODULE_EVENT_ERROR_BAD_CABLE, 600 MLX5_MODULE_EVENT_ERROR_UNKNOWN, 601 MLX5_MODULE_EVENT_ERROR_NUM, 602 }; 603 604 struct mlx5_port_module_event_stats { 605 u64 status_counters[MLX5_MODULE_STATUS_NUM]; 606 u64 error_counters[MLX5_MODULE_EVENT_ERROR_NUM]; 607 }; 608 609 struct mlx5_priv { 610 char name[MLX5_MAX_NAME_LEN]; 611 struct mlx5_eq_table eq_table; 612 struct mlx5_irq_info *irq_info; 613 614 /* pages stuff */ 615 struct workqueue_struct *pg_wq; 616 struct rb_root page_root; 617 int fw_pages; 618 atomic_t reg_pages; 619 struct list_head free_list; 620 int vfs_pages; 621 622 struct mlx5_core_health health; 623 624 struct mlx5_srq_table srq_table; 625 626 /* start: qp staff */ 627 struct mlx5_qp_table qp_table; 628 struct dentry *qp_debugfs; 629 struct dentry *eq_debugfs; 630 struct dentry *cq_debugfs; 631 struct dentry *cmdif_debugfs; 632 /* end: qp staff */ 633 634 /* start: cq staff */ 635 struct mlx5_cq_table cq_table; 636 /* end: cq staff */ 637 638 /* start: mkey staff */ 639 struct mlx5_mkey_table mkey_table; 640 /* end: mkey staff */ 641 642 /* start: alloc staff */ 643 /* protect buffer alocation according to numa node */ 644 struct mutex alloc_mutex; 645 int numa_node; 646 647 struct mutex pgdir_mutex; 648 struct list_head pgdir_list; 649 /* end: alloc staff */ 650 struct dentry *dbg_root; 651 652 /* protect mkey key part */ 653 spinlock_t mkey_lock; 654 u8 mkey_key; 655 656 struct list_head dev_list; 657 struct list_head ctx_list; 658 spinlock_t ctx_lock; 659 660 struct list_head waiting_events_list; 661 bool is_accum_events; 662 663 struct mlx5_flow_steering *steering; 664 struct mlx5_mpfs *mpfs; 665 struct mlx5_eswitch *eswitch; 666 struct mlx5_core_sriov sriov; 667 struct mlx5_lag *lag; 668 unsigned long pci_dev_data; 669 struct mlx5_fc_stats fc_stats; 670 struct mlx5_rl_table rl_table; 671 672 struct mlx5_port_module_event_stats pme_stats; 673 674 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 675 void (*pfault)(struct mlx5_core_dev *dev, 676 void *context, 677 struct mlx5_pagefault *pfault); 678 void *pfault_ctx; 679 struct srcu_struct pfault_srcu; 680 #endif 681 struct mlx5_bfreg_data bfregs; 682 struct mlx5_uars_page *uar; 683 }; 684 685 enum mlx5_device_state { 686 MLX5_DEVICE_STATE_UP, 687 MLX5_DEVICE_STATE_INTERNAL_ERROR, 688 }; 689 690 enum mlx5_interface_state { 691 MLX5_INTERFACE_STATE_UP = BIT(0), 692 }; 693 694 enum mlx5_pci_status { 695 MLX5_PCI_STATUS_DISABLED, 696 MLX5_PCI_STATUS_ENABLED, 697 }; 698 699 enum mlx5_pagefault_type_flags { 700 MLX5_PFAULT_REQUESTOR = 1 << 0, 701 MLX5_PFAULT_WRITE = 1 << 1, 702 MLX5_PFAULT_RDMA = 1 << 2, 703 }; 704 705 /* Contains the details of a pagefault. */ 706 struct mlx5_pagefault { 707 u32 bytes_committed; 708 u32 token; 709 u8 event_subtype; 710 u8 type; 711 union { 712 /* Initiator or send message responder pagefault details. */ 713 struct { 714 /* Received packet size, only valid for responders. */ 715 u32 packet_size; 716 /* 717 * Number of resource holding WQE, depends on type. 718 */ 719 u32 wq_num; 720 /* 721 * WQE index. Refers to either the send queue or 722 * receive queue, according to event_subtype. 723 */ 724 u16 wqe_index; 725 } wqe; 726 /* RDMA responder pagefault details */ 727 struct { 728 u32 r_key; 729 /* 730 * Received packet size, minimal size page fault 731 * resolution required for forward progress. 732 */ 733 u32 packet_size; 734 u32 rdma_op_len; 735 u64 rdma_va; 736 } rdma; 737 }; 738 739 struct mlx5_eq *eq; 740 struct work_struct work; 741 }; 742 743 struct mlx5_td { 744 struct list_head tirs_list; 745 u32 tdn; 746 }; 747 748 struct mlx5e_resources { 749 u32 pdn; 750 struct mlx5_td td; 751 struct mlx5_core_mkey mkey; 752 struct mlx5_sq_bfreg bfreg; 753 }; 754 755 #define MLX5_MAX_RESERVED_GIDS 8 756 757 struct mlx5_rsvd_gids { 758 unsigned int start; 759 unsigned int count; 760 struct ida ida; 761 }; 762 763 struct mlx5_core_dev { 764 struct pci_dev *pdev; 765 /* sync pci state */ 766 struct mutex pci_status_mutex; 767 enum mlx5_pci_status pci_status; 768 u8 rev_id; 769 char board_id[MLX5_BOARD_ID_LEN]; 770 struct mlx5_cmd cmd; 771 struct mlx5_port_caps port_caps[MLX5_MAX_PORTS]; 772 struct { 773 u32 hca_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)]; 774 u32 hca_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)]; 775 u32 pcam[MLX5_ST_SZ_DW(pcam_reg)]; 776 u32 mcam[MLX5_ST_SZ_DW(mcam_reg)]; 777 } caps; 778 phys_addr_t iseg_base; 779 struct mlx5_init_seg __iomem *iseg; 780 enum mlx5_device_state state; 781 /* sync interface state */ 782 struct mutex intf_state_mutex; 783 unsigned long intf_state; 784 void (*event) (struct mlx5_core_dev *dev, 785 enum mlx5_dev_event event, 786 unsigned long param); 787 struct mlx5_priv priv; 788 struct mlx5_profile *profile; 789 atomic_t num_qps; 790 u32 issi; 791 struct mlx5e_resources mlx5e_res; 792 struct { 793 struct mlx5_rsvd_gids reserved_gids; 794 atomic_t roce_en; 795 } roce; 796 #ifdef CONFIG_MLX5_FPGA 797 struct mlx5_fpga_device *fpga; 798 #endif 799 #ifdef CONFIG_RFS_ACCEL 800 struct cpu_rmap *rmap; 801 #endif 802 }; 803 804 struct mlx5_db { 805 __be32 *db; 806 union { 807 struct mlx5_db_pgdir *pgdir; 808 struct mlx5_ib_user_db_page *user_page; 809 } u; 810 dma_addr_t dma; 811 int index; 812 }; 813 814 enum { 815 MLX5_COMP_EQ_SIZE = 1024, 816 }; 817 818 enum { 819 MLX5_PTYS_IB = 1 << 0, 820 MLX5_PTYS_EN = 1 << 2, 821 }; 822 823 typedef void (*mlx5_cmd_cbk_t)(int status, void *context); 824 825 enum { 826 MLX5_CMD_ENT_STATE_PENDING_COMP, 827 }; 828 829 struct mlx5_cmd_work_ent { 830 unsigned long state; 831 struct mlx5_cmd_msg *in; 832 struct mlx5_cmd_msg *out; 833 void *uout; 834 int uout_size; 835 mlx5_cmd_cbk_t callback; 836 struct delayed_work cb_timeout_work; 837 void *context; 838 int idx; 839 struct completion done; 840 struct mlx5_cmd *cmd; 841 struct work_struct work; 842 struct mlx5_cmd_layout *lay; 843 int ret; 844 int page_queue; 845 u8 status; 846 u8 token; 847 u64 ts1; 848 u64 ts2; 849 u16 op; 850 bool polling; 851 }; 852 853 struct mlx5_pas { 854 u64 pa; 855 u8 log_sz; 856 }; 857 858 enum phy_port_state { 859 MLX5_AAA_111 860 }; 861 862 struct mlx5_hca_vport_context { 863 u32 field_select; 864 bool sm_virt_aware; 865 bool has_smi; 866 bool has_raw; 867 enum port_state_policy policy; 868 enum phy_port_state phys_state; 869 enum ib_port_state vport_state; 870 u8 port_physical_state; 871 u64 sys_image_guid; 872 u64 port_guid; 873 u64 node_guid; 874 u32 cap_mask1; 875 u32 cap_mask1_perm; 876 u32 cap_mask2; 877 u32 cap_mask2_perm; 878 u16 lid; 879 u8 init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */ 880 u8 lmc; 881 u8 subnet_timeout; 882 u16 sm_lid; 883 u8 sm_sl; 884 u16 qkey_violation_counter; 885 u16 pkey_violation_counter; 886 bool grh_required; 887 }; 888 889 static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset) 890 { 891 return buf->direct.buf + offset; 892 } 893 894 #define STRUCT_FIELD(header, field) \ 895 .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \ 896 .struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field 897 898 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev) 899 { 900 return pci_get_drvdata(pdev); 901 } 902 903 extern struct dentry *mlx5_debugfs_root; 904 905 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev) 906 { 907 return ioread32be(&dev->iseg->fw_rev) & 0xffff; 908 } 909 910 static inline u16 fw_rev_min(struct mlx5_core_dev *dev) 911 { 912 return ioread32be(&dev->iseg->fw_rev) >> 16; 913 } 914 915 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev) 916 { 917 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff; 918 } 919 920 static inline u16 cmdif_rev(struct mlx5_core_dev *dev) 921 { 922 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16; 923 } 924 925 static inline u32 mlx5_base_mkey(const u32 key) 926 { 927 return key & 0xffffff00u; 928 } 929 930 int mlx5_cmd_init(struct mlx5_core_dev *dev); 931 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev); 932 void mlx5_cmd_use_events(struct mlx5_core_dev *dev); 933 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev); 934 935 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out, 936 int out_size); 937 int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size, 938 void *out, int out_size, mlx5_cmd_cbk_t callback, 939 void *context); 940 int mlx5_cmd_exec_polling(struct mlx5_core_dev *dev, void *in, int in_size, 941 void *out, int out_size); 942 void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome); 943 944 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type); 945 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn); 946 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn); 947 void mlx5_health_cleanup(struct mlx5_core_dev *dev); 948 int mlx5_health_init(struct mlx5_core_dev *dev); 949 void mlx5_start_health_poll(struct mlx5_core_dev *dev); 950 void mlx5_stop_health_poll(struct mlx5_core_dev *dev); 951 void mlx5_drain_health_wq(struct mlx5_core_dev *dev); 952 void mlx5_trigger_health_work(struct mlx5_core_dev *dev); 953 void mlx5_drain_health_recovery(struct mlx5_core_dev *dev); 954 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size, 955 struct mlx5_buf *buf, int node); 956 int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, struct mlx5_buf *buf); 957 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf); 958 int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size, 959 struct mlx5_frag_buf *buf, int node); 960 void mlx5_frag_buf_free(struct mlx5_core_dev *dev, struct mlx5_frag_buf *buf); 961 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev, 962 gfp_t flags, int npages); 963 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev, 964 struct mlx5_cmd_mailbox *head); 965 int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, 966 struct mlx5_srq_attr *in); 967 int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq); 968 int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, 969 struct mlx5_srq_attr *out); 970 int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, 971 u16 lwm, int is_srq); 972 void mlx5_init_mkey_table(struct mlx5_core_dev *dev); 973 void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev); 974 int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev, 975 struct mlx5_core_mkey *mkey, 976 u32 *in, int inlen, 977 u32 *out, int outlen, 978 mlx5_cmd_cbk_t callback, void *context); 979 int mlx5_core_create_mkey(struct mlx5_core_dev *dev, 980 struct mlx5_core_mkey *mkey, 981 u32 *in, int inlen); 982 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, 983 struct mlx5_core_mkey *mkey); 984 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey, 985 u32 *out, int outlen); 986 int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *_mkey, 987 u32 *mkey); 988 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn); 989 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn); 990 int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb, 991 u16 opmod, u8 port); 992 void mlx5_pagealloc_init(struct mlx5_core_dev *dev); 993 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev); 994 int mlx5_pagealloc_start(struct mlx5_core_dev *dev); 995 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev); 996 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id, 997 s32 npages); 998 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot); 999 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev); 1000 void mlx5_register_debugfs(void); 1001 void mlx5_unregister_debugfs(void); 1002 int mlx5_eq_init(struct mlx5_core_dev *dev); 1003 void mlx5_eq_cleanup(struct mlx5_core_dev *dev); 1004 void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas); 1005 void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas); 1006 void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn); 1007 void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type); 1008 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type); 1009 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn); 1010 void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec, bool forced); 1011 void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type); 1012 int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx, 1013 int nent, u64 mask, const char *name, 1014 enum mlx5_eq_type type); 1015 int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq); 1016 int mlx5_start_eqs(struct mlx5_core_dev *dev); 1017 int mlx5_stop_eqs(struct mlx5_core_dev *dev); 1018 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, 1019 unsigned int *irqn); 1020 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn); 1021 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn); 1022 1023 int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev); 1024 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev); 1025 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in, 1026 int size_in, void *data_out, int size_out, 1027 u16 reg_num, int arg, int write); 1028 1029 int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq); 1030 void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq); 1031 int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq, 1032 u32 *out, int outlen); 1033 int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev); 1034 void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev); 1035 int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev); 1036 void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev); 1037 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db); 1038 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db, 1039 int node); 1040 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db); 1041 1042 const char *mlx5_command_str(int command); 1043 int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev); 1044 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev); 1045 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn, 1046 int npsvs, u32 *sig_index); 1047 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num); 1048 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common); 1049 int mlx5_query_odp_caps(struct mlx5_core_dev *dev, 1050 struct mlx5_odp_caps *odp_caps); 1051 int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev, 1052 u8 port_num, void *out, size_t sz); 1053 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 1054 int mlx5_core_page_fault_resume(struct mlx5_core_dev *dev, u32 token, 1055 u32 wq_num, u8 type, int error); 1056 #endif 1057 1058 int mlx5_init_rl_table(struct mlx5_core_dev *dev); 1059 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev); 1060 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u32 rate, u16 *index); 1061 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, u32 rate); 1062 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate); 1063 int mlx5_alloc_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg, 1064 bool map_wc, bool fast_path); 1065 void mlx5_free_bfreg(struct mlx5_core_dev *mdev, struct mlx5_sq_bfreg *bfreg); 1066 1067 unsigned int mlx5_core_reserved_gids_count(struct mlx5_core_dev *dev); 1068 int mlx5_core_roce_gid_set(struct mlx5_core_dev *dev, unsigned int index, 1069 u8 roce_version, u8 roce_l3_type, const u8 *gid, 1070 const u8 *mac, bool vlan, u16 vlan_id); 1071 1072 static inline int fw_initializing(struct mlx5_core_dev *dev) 1073 { 1074 return ioread32be(&dev->iseg->initializing) >> 31; 1075 } 1076 1077 static inline u32 mlx5_mkey_to_idx(u32 mkey) 1078 { 1079 return mkey >> 8; 1080 } 1081 1082 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx) 1083 { 1084 return mkey_idx << 8; 1085 } 1086 1087 static inline u8 mlx5_mkey_variant(u32 mkey) 1088 { 1089 return mkey & 0xff; 1090 } 1091 1092 enum { 1093 MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0, 1094 MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1, 1095 }; 1096 1097 enum { 1098 MR_CACHE_LAST_STD_ENTRY = 20, 1099 MLX5_IMR_MTT_CACHE_ENTRY, 1100 MLX5_IMR_KSM_CACHE_ENTRY, 1101 MAX_MR_CACHE_ENTRIES 1102 }; 1103 1104 enum { 1105 MLX5_INTERFACE_PROTOCOL_IB = 0, 1106 MLX5_INTERFACE_PROTOCOL_ETH = 1, 1107 }; 1108 1109 struct mlx5_interface { 1110 void * (*add)(struct mlx5_core_dev *dev); 1111 void (*remove)(struct mlx5_core_dev *dev, void *context); 1112 int (*attach)(struct mlx5_core_dev *dev, void *context); 1113 void (*detach)(struct mlx5_core_dev *dev, void *context); 1114 void (*event)(struct mlx5_core_dev *dev, void *context, 1115 enum mlx5_dev_event event, unsigned long param); 1116 void (*pfault)(struct mlx5_core_dev *dev, 1117 void *context, 1118 struct mlx5_pagefault *pfault); 1119 void * (*get_dev)(void *context); 1120 int protocol; 1121 struct list_head list; 1122 }; 1123 1124 void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol); 1125 int mlx5_register_interface(struct mlx5_interface *intf); 1126 void mlx5_unregister_interface(struct mlx5_interface *intf); 1127 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id); 1128 1129 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev); 1130 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev); 1131 bool mlx5_lag_is_active(struct mlx5_core_dev *dev); 1132 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev); 1133 struct mlx5_uars_page *mlx5_get_uars_page(struct mlx5_core_dev *mdev); 1134 void mlx5_put_uars_page(struct mlx5_core_dev *mdev, struct mlx5_uars_page *up); 1135 1136 #ifndef CONFIG_MLX5_CORE_IPOIB 1137 static inline 1138 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev, 1139 struct ib_device *ibdev, 1140 const char *name, 1141 void (*setup)(struct net_device *)) 1142 { 1143 return ERR_PTR(-EOPNOTSUPP); 1144 } 1145 1146 static inline void mlx5_rdma_netdev_free(struct net_device *netdev) {} 1147 #else 1148 struct net_device *mlx5_rdma_netdev_alloc(struct mlx5_core_dev *mdev, 1149 struct ib_device *ibdev, 1150 const char *name, 1151 void (*setup)(struct net_device *)); 1152 void mlx5_rdma_netdev_free(struct net_device *netdev); 1153 #endif /* CONFIG_MLX5_CORE_IPOIB */ 1154 1155 struct mlx5_profile { 1156 u64 mask; 1157 u8 log_max_qp; 1158 struct { 1159 int size; 1160 int limit; 1161 } mr_cache[MAX_MR_CACHE_ENTRIES]; 1162 }; 1163 1164 enum { 1165 MLX5_PCI_DEV_IS_VF = 1 << 0, 1166 }; 1167 1168 static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev) 1169 { 1170 return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF); 1171 } 1172 1173 static inline int mlx5_get_gid_table_len(u16 param) 1174 { 1175 if (param > 4) { 1176 pr_warn("gid table length is zero\n"); 1177 return 0; 1178 } 1179 1180 return 8 * (1 << param); 1181 } 1182 1183 static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev) 1184 { 1185 return !!(dev->priv.rl_table.max_size); 1186 } 1187 1188 enum { 1189 MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32, 1190 }; 1191 1192 static inline const struct cpumask * 1193 mlx5_get_vector_affinity(struct mlx5_core_dev *dev, int vector) 1194 { 1195 return pci_irq_get_affinity(dev->pdev, MLX5_EQ_VEC_COMP_BASE + vector); 1196 } 1197 1198 #endif /* MLX5_DRIVER_H */ 1199