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 45 #include <linux/mlx5/device.h> 46 #include <linux/mlx5/doorbell.h> 47 48 enum { 49 MLX5_BOARD_ID_LEN = 64, 50 MLX5_MAX_NAME_LEN = 16, 51 }; 52 53 enum { 54 /* one minute for the sake of bringup. Generally, commands must always 55 * complete and we may need to increase this timeout value 56 */ 57 MLX5_CMD_TIMEOUT_MSEC = 60 * 1000, 58 MLX5_CMD_WQ_MAX_NAME = 32, 59 }; 60 61 enum { 62 CMD_OWNER_SW = 0x0, 63 CMD_OWNER_HW = 0x1, 64 CMD_STATUS_SUCCESS = 0, 65 }; 66 67 enum mlx5_sqp_t { 68 MLX5_SQP_SMI = 0, 69 MLX5_SQP_GSI = 1, 70 MLX5_SQP_IEEE_1588 = 2, 71 MLX5_SQP_SNIFFER = 3, 72 MLX5_SQP_SYNC_UMR = 4, 73 }; 74 75 enum { 76 MLX5_MAX_PORTS = 2, 77 }; 78 79 enum { 80 MLX5_EQ_VEC_PAGES = 0, 81 MLX5_EQ_VEC_CMD = 1, 82 MLX5_EQ_VEC_ASYNC = 2, 83 MLX5_EQ_VEC_COMP_BASE, 84 }; 85 86 enum { 87 MLX5_MAX_IRQ_NAME = 32 88 }; 89 90 enum { 91 MLX5_ATOMIC_MODE_IB_COMP = 1 << 16, 92 MLX5_ATOMIC_MODE_CX = 2 << 16, 93 MLX5_ATOMIC_MODE_8B = 3 << 16, 94 MLX5_ATOMIC_MODE_16B = 4 << 16, 95 MLX5_ATOMIC_MODE_32B = 5 << 16, 96 MLX5_ATOMIC_MODE_64B = 6 << 16, 97 MLX5_ATOMIC_MODE_128B = 7 << 16, 98 MLX5_ATOMIC_MODE_256B = 8 << 16, 99 }; 100 101 enum { 102 MLX5_REG_QETCR = 0x4005, 103 MLX5_REG_QTCT = 0x400a, 104 MLX5_REG_PCAP = 0x5001, 105 MLX5_REG_PMTU = 0x5003, 106 MLX5_REG_PTYS = 0x5004, 107 MLX5_REG_PAOS = 0x5006, 108 MLX5_REG_PFCC = 0x5007, 109 MLX5_REG_PPCNT = 0x5008, 110 MLX5_REG_PMAOS = 0x5012, 111 MLX5_REG_PUDE = 0x5009, 112 MLX5_REG_PMPE = 0x5010, 113 MLX5_REG_PELC = 0x500e, 114 MLX5_REG_PVLC = 0x500f, 115 MLX5_REG_PMLP = 0, /* TBD */ 116 MLX5_REG_NODE_DESC = 0x6001, 117 MLX5_REG_HOST_ENDIANNESS = 0x7004, 118 }; 119 120 enum { 121 MLX5_ATOMIC_OPS_CMP_SWAP = 1 << 0, 122 MLX5_ATOMIC_OPS_FETCH_ADD = 1 << 1, 123 }; 124 125 enum mlx5_page_fault_resume_flags { 126 MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0, 127 MLX5_PAGE_FAULT_RESUME_WRITE = 1 << 1, 128 MLX5_PAGE_FAULT_RESUME_RDMA = 1 << 2, 129 MLX5_PAGE_FAULT_RESUME_ERROR = 1 << 7, 130 }; 131 132 enum dbg_rsc_type { 133 MLX5_DBG_RSC_QP, 134 MLX5_DBG_RSC_EQ, 135 MLX5_DBG_RSC_CQ, 136 }; 137 138 struct mlx5_field_desc { 139 struct dentry *dent; 140 int i; 141 }; 142 143 struct mlx5_rsc_debug { 144 struct mlx5_core_dev *dev; 145 void *object; 146 enum dbg_rsc_type type; 147 struct dentry *root; 148 struct mlx5_field_desc fields[0]; 149 }; 150 151 enum mlx5_dev_event { 152 MLX5_DEV_EVENT_SYS_ERROR, 153 MLX5_DEV_EVENT_PORT_UP, 154 MLX5_DEV_EVENT_PORT_DOWN, 155 MLX5_DEV_EVENT_PORT_INITIALIZED, 156 MLX5_DEV_EVENT_LID_CHANGE, 157 MLX5_DEV_EVENT_PKEY_CHANGE, 158 MLX5_DEV_EVENT_GUID_CHANGE, 159 MLX5_DEV_EVENT_CLIENT_REREG, 160 }; 161 162 enum mlx5_port_status { 163 MLX5_PORT_UP = 1, 164 MLX5_PORT_DOWN = 2, 165 }; 166 167 struct mlx5_uuar_info { 168 struct mlx5_uar *uars; 169 int num_uars; 170 int num_low_latency_uuars; 171 unsigned long *bitmap; 172 unsigned int *count; 173 struct mlx5_bf *bfs; 174 175 /* 176 * protect uuar allocation data structs 177 */ 178 struct mutex lock; 179 u32 ver; 180 }; 181 182 struct mlx5_bf { 183 void __iomem *reg; 184 void __iomem *regreg; 185 int buf_size; 186 struct mlx5_uar *uar; 187 unsigned long offset; 188 int need_lock; 189 /* protect blue flame buffer selection when needed 190 */ 191 spinlock_t lock; 192 193 /* serialize 64 bit writes when done as two 32 bit accesses 194 */ 195 spinlock_t lock32; 196 int uuarn; 197 }; 198 199 struct mlx5_cmd_first { 200 __be32 data[4]; 201 }; 202 203 struct mlx5_cmd_msg { 204 struct list_head list; 205 struct cache_ent *cache; 206 u32 len; 207 struct mlx5_cmd_first first; 208 struct mlx5_cmd_mailbox *next; 209 }; 210 211 struct mlx5_cmd_debug { 212 struct dentry *dbg_root; 213 struct dentry *dbg_in; 214 struct dentry *dbg_out; 215 struct dentry *dbg_outlen; 216 struct dentry *dbg_status; 217 struct dentry *dbg_run; 218 void *in_msg; 219 void *out_msg; 220 u8 status; 221 u16 inlen; 222 u16 outlen; 223 }; 224 225 struct cache_ent { 226 /* protect block chain allocations 227 */ 228 spinlock_t lock; 229 struct list_head head; 230 }; 231 232 struct cmd_msg_cache { 233 struct cache_ent large; 234 struct cache_ent med; 235 236 }; 237 238 struct mlx5_cmd_stats { 239 u64 sum; 240 u64 n; 241 struct dentry *root; 242 struct dentry *avg; 243 struct dentry *count; 244 /* protect command average calculations */ 245 spinlock_t lock; 246 }; 247 248 struct mlx5_cmd { 249 void *cmd_alloc_buf; 250 dma_addr_t alloc_dma; 251 int alloc_size; 252 void *cmd_buf; 253 dma_addr_t dma; 254 u16 cmdif_rev; 255 u8 log_sz; 256 u8 log_stride; 257 int max_reg_cmds; 258 int events; 259 u32 __iomem *vector; 260 261 /* protect command queue allocations 262 */ 263 spinlock_t alloc_lock; 264 265 /* protect token allocations 266 */ 267 spinlock_t token_lock; 268 u8 token; 269 unsigned long bitmask; 270 char wq_name[MLX5_CMD_WQ_MAX_NAME]; 271 struct workqueue_struct *wq; 272 struct semaphore sem; 273 struct semaphore pages_sem; 274 int mode; 275 struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS]; 276 struct pci_pool *pool; 277 struct mlx5_cmd_debug dbg; 278 struct cmd_msg_cache cache; 279 int checksum_disabled; 280 struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX]; 281 }; 282 283 struct mlx5_port_caps { 284 int gid_table_len; 285 int pkey_table_len; 286 u8 ext_port_cap; 287 }; 288 289 struct mlx5_cmd_mailbox { 290 void *buf; 291 dma_addr_t dma; 292 struct mlx5_cmd_mailbox *next; 293 }; 294 295 struct mlx5_buf_list { 296 void *buf; 297 dma_addr_t map; 298 }; 299 300 struct mlx5_buf { 301 struct mlx5_buf_list direct; 302 int npages; 303 int size; 304 u8 page_shift; 305 }; 306 307 struct mlx5_eq { 308 struct mlx5_core_dev *dev; 309 __be32 __iomem *doorbell; 310 u32 cons_index; 311 struct mlx5_buf buf; 312 int size; 313 unsigned int irqn; 314 u8 eqn; 315 int nent; 316 u64 mask; 317 struct list_head list; 318 int index; 319 struct mlx5_rsc_debug *dbg; 320 }; 321 322 struct mlx5_core_psv { 323 u32 psv_idx; 324 struct psv_layout { 325 u32 pd; 326 u16 syndrome; 327 u16 reserved; 328 u16 bg; 329 u16 app_tag; 330 u32 ref_tag; 331 } psv; 332 }; 333 334 struct mlx5_core_sig_ctx { 335 struct mlx5_core_psv psv_memory; 336 struct mlx5_core_psv psv_wire; 337 struct ib_sig_err err_item; 338 bool sig_status_checked; 339 bool sig_err_exists; 340 u32 sigerr_count; 341 }; 342 343 struct mlx5_core_mkey { 344 u64 iova; 345 u64 size; 346 u32 key; 347 u32 pd; 348 }; 349 350 enum mlx5_res_type { 351 MLX5_RES_QP = MLX5_EVENT_QUEUE_TYPE_QP, 352 MLX5_RES_RQ = MLX5_EVENT_QUEUE_TYPE_RQ, 353 MLX5_RES_SQ = MLX5_EVENT_QUEUE_TYPE_SQ, 354 MLX5_RES_SRQ = 3, 355 MLX5_RES_XSRQ = 4, 356 }; 357 358 struct mlx5_core_rsc_common { 359 enum mlx5_res_type res; 360 atomic_t refcount; 361 struct completion free; 362 }; 363 364 struct mlx5_core_srq { 365 struct mlx5_core_rsc_common common; /* must be first */ 366 u32 srqn; 367 int max; 368 int max_gs; 369 int max_avail_gather; 370 int wqe_shift; 371 void (*event) (struct mlx5_core_srq *, enum mlx5_event); 372 373 atomic_t refcount; 374 struct completion free; 375 }; 376 377 struct mlx5_eq_table { 378 void __iomem *update_ci; 379 void __iomem *update_arm_ci; 380 struct list_head comp_eqs_list; 381 struct mlx5_eq pages_eq; 382 struct mlx5_eq async_eq; 383 struct mlx5_eq cmd_eq; 384 int num_comp_vectors; 385 /* protect EQs list 386 */ 387 spinlock_t lock; 388 }; 389 390 struct mlx5_uar { 391 u32 index; 392 struct list_head bf_list; 393 unsigned free_bf_bmap; 394 void __iomem *bf_map; 395 void __iomem *map; 396 }; 397 398 399 struct mlx5_core_health { 400 struct health_buffer __iomem *health; 401 __be32 __iomem *health_counter; 402 struct timer_list timer; 403 u32 prev; 404 int miss_counter; 405 bool sick; 406 struct workqueue_struct *wq; 407 struct work_struct work; 408 }; 409 410 struct mlx5_cq_table { 411 /* protect radix tree 412 */ 413 spinlock_t lock; 414 struct radix_tree_root tree; 415 }; 416 417 struct mlx5_qp_table { 418 /* protect radix tree 419 */ 420 spinlock_t lock; 421 struct radix_tree_root tree; 422 }; 423 424 struct mlx5_srq_table { 425 /* protect radix tree 426 */ 427 spinlock_t lock; 428 struct radix_tree_root tree; 429 }; 430 431 struct mlx5_mkey_table { 432 /* protect radix tree 433 */ 434 rwlock_t lock; 435 struct radix_tree_root tree; 436 }; 437 438 struct mlx5_vf_context { 439 int enabled; 440 }; 441 442 struct mlx5_core_sriov { 443 struct mlx5_vf_context *vfs_ctx; 444 int num_vfs; 445 int enabled_vfs; 446 }; 447 448 struct mlx5_irq_info { 449 cpumask_var_t mask; 450 char name[MLX5_MAX_IRQ_NAME]; 451 }; 452 453 struct mlx5_eswitch; 454 455 struct mlx5_priv { 456 char name[MLX5_MAX_NAME_LEN]; 457 struct mlx5_eq_table eq_table; 458 struct msix_entry *msix_arr; 459 struct mlx5_irq_info *irq_info; 460 struct mlx5_uuar_info uuari; 461 MLX5_DECLARE_DOORBELL_LOCK(cq_uar_lock); 462 463 /* pages stuff */ 464 struct workqueue_struct *pg_wq; 465 struct rb_root page_root; 466 int fw_pages; 467 atomic_t reg_pages; 468 struct list_head free_list; 469 int vfs_pages; 470 471 struct mlx5_core_health health; 472 473 struct mlx5_srq_table srq_table; 474 475 /* start: qp staff */ 476 struct mlx5_qp_table qp_table; 477 struct dentry *qp_debugfs; 478 struct dentry *eq_debugfs; 479 struct dentry *cq_debugfs; 480 struct dentry *cmdif_debugfs; 481 /* end: qp staff */ 482 483 /* start: cq staff */ 484 struct mlx5_cq_table cq_table; 485 /* end: cq staff */ 486 487 /* start: mkey staff */ 488 struct mlx5_mkey_table mkey_table; 489 /* end: mkey staff */ 490 491 /* start: alloc staff */ 492 /* protect buffer alocation according to numa node */ 493 struct mutex alloc_mutex; 494 int numa_node; 495 496 struct mutex pgdir_mutex; 497 struct list_head pgdir_list; 498 /* end: alloc staff */ 499 struct dentry *dbg_root; 500 501 /* protect mkey key part */ 502 spinlock_t mkey_lock; 503 u8 mkey_key; 504 505 struct list_head dev_list; 506 struct list_head ctx_list; 507 spinlock_t ctx_lock; 508 509 struct mlx5_eswitch *eswitch; 510 struct mlx5_core_sriov sriov; 511 unsigned long pci_dev_data; 512 struct mlx5_flow_root_namespace *root_ns; 513 struct mlx5_flow_root_namespace *fdb_root_ns; 514 }; 515 516 enum mlx5_device_state { 517 MLX5_DEVICE_STATE_UP, 518 MLX5_DEVICE_STATE_INTERNAL_ERROR, 519 }; 520 521 enum mlx5_interface_state { 522 MLX5_INTERFACE_STATE_DOWN = BIT(0), 523 MLX5_INTERFACE_STATE_UP = BIT(1), 524 MLX5_INTERFACE_STATE_SHUTDOWN = BIT(2), 525 }; 526 527 enum mlx5_pci_status { 528 MLX5_PCI_STATUS_DISABLED, 529 MLX5_PCI_STATUS_ENABLED, 530 }; 531 532 struct mlx5_core_dev { 533 struct pci_dev *pdev; 534 /* sync pci state */ 535 struct mutex pci_status_mutex; 536 enum mlx5_pci_status pci_status; 537 u8 rev_id; 538 char board_id[MLX5_BOARD_ID_LEN]; 539 struct mlx5_cmd cmd; 540 struct mlx5_port_caps port_caps[MLX5_MAX_PORTS]; 541 u32 hca_caps_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)]; 542 u32 hca_caps_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)]; 543 phys_addr_t iseg_base; 544 struct mlx5_init_seg __iomem *iseg; 545 enum mlx5_device_state state; 546 /* sync interface state */ 547 struct mutex intf_state_mutex; 548 unsigned long intf_state; 549 void (*event) (struct mlx5_core_dev *dev, 550 enum mlx5_dev_event event, 551 unsigned long param); 552 struct mlx5_priv priv; 553 struct mlx5_profile *profile; 554 atomic_t num_qps; 555 u32 issi; 556 }; 557 558 struct mlx5_db { 559 __be32 *db; 560 union { 561 struct mlx5_db_pgdir *pgdir; 562 struct mlx5_ib_user_db_page *user_page; 563 } u; 564 dma_addr_t dma; 565 int index; 566 }; 567 568 enum { 569 MLX5_DB_PER_PAGE = PAGE_SIZE / L1_CACHE_BYTES, 570 }; 571 572 enum { 573 MLX5_COMP_EQ_SIZE = 1024, 574 }; 575 576 enum { 577 MLX5_PTYS_IB = 1 << 0, 578 MLX5_PTYS_EN = 1 << 2, 579 }; 580 581 struct mlx5_db_pgdir { 582 struct list_head list; 583 DECLARE_BITMAP(bitmap, MLX5_DB_PER_PAGE); 584 __be32 *db_page; 585 dma_addr_t db_dma; 586 }; 587 588 typedef void (*mlx5_cmd_cbk_t)(int status, void *context); 589 590 struct mlx5_cmd_work_ent { 591 struct mlx5_cmd_msg *in; 592 struct mlx5_cmd_msg *out; 593 void *uout; 594 int uout_size; 595 mlx5_cmd_cbk_t callback; 596 void *context; 597 int idx; 598 struct completion done; 599 struct mlx5_cmd *cmd; 600 struct work_struct work; 601 struct mlx5_cmd_layout *lay; 602 int ret; 603 int page_queue; 604 u8 status; 605 u8 token; 606 u64 ts1; 607 u64 ts2; 608 u16 op; 609 }; 610 611 struct mlx5_pas { 612 u64 pa; 613 u8 log_sz; 614 }; 615 616 enum port_state_policy { 617 MLX5_POLICY_DOWN = 0, 618 MLX5_POLICY_UP = 1, 619 MLX5_POLICY_FOLLOW = 2, 620 MLX5_POLICY_INVALID = 0xffffffff 621 }; 622 623 enum phy_port_state { 624 MLX5_AAA_111 625 }; 626 627 struct mlx5_hca_vport_context { 628 u32 field_select; 629 bool sm_virt_aware; 630 bool has_smi; 631 bool has_raw; 632 enum port_state_policy policy; 633 enum phy_port_state phys_state; 634 enum ib_port_state vport_state; 635 u8 port_physical_state; 636 u64 sys_image_guid; 637 u64 port_guid; 638 u64 node_guid; 639 u32 cap_mask1; 640 u32 cap_mask1_perm; 641 u32 cap_mask2; 642 u32 cap_mask2_perm; 643 u16 lid; 644 u8 init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */ 645 u8 lmc; 646 u8 subnet_timeout; 647 u16 sm_lid; 648 u8 sm_sl; 649 u16 qkey_violation_counter; 650 u16 pkey_violation_counter; 651 bool grh_required; 652 }; 653 654 static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset) 655 { 656 return buf->direct.buf + offset; 657 } 658 659 extern struct workqueue_struct *mlx5_core_wq; 660 661 #define STRUCT_FIELD(header, field) \ 662 .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \ 663 .struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field 664 665 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev) 666 { 667 return pci_get_drvdata(pdev); 668 } 669 670 extern struct dentry *mlx5_debugfs_root; 671 672 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev) 673 { 674 return ioread32be(&dev->iseg->fw_rev) & 0xffff; 675 } 676 677 static inline u16 fw_rev_min(struct mlx5_core_dev *dev) 678 { 679 return ioread32be(&dev->iseg->fw_rev) >> 16; 680 } 681 682 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev) 683 { 684 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff; 685 } 686 687 static inline u16 cmdif_rev(struct mlx5_core_dev *dev) 688 { 689 return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16; 690 } 691 692 static inline void *mlx5_vzalloc(unsigned long size) 693 { 694 void *rtn; 695 696 rtn = kzalloc(size, GFP_KERNEL | __GFP_NOWARN); 697 if (!rtn) 698 rtn = vzalloc(size); 699 return rtn; 700 } 701 702 static inline u32 mlx5_base_mkey(const u32 key) 703 { 704 return key & 0xffffff00u; 705 } 706 707 int mlx5_cmd_init(struct mlx5_core_dev *dev); 708 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev); 709 void mlx5_cmd_use_events(struct mlx5_core_dev *dev); 710 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev); 711 int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr); 712 int mlx5_cmd_status_to_err_v2(void *ptr); 713 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type); 714 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out, 715 int out_size); 716 int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size, 717 void *out, int out_size, mlx5_cmd_cbk_t callback, 718 void *context); 719 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn); 720 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn); 721 int mlx5_alloc_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari); 722 int mlx5_free_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari); 723 int mlx5_alloc_map_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar, 724 bool map_wc); 725 void mlx5_unmap_free_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar); 726 void mlx5_health_cleanup(struct mlx5_core_dev *dev); 727 int mlx5_health_init(struct mlx5_core_dev *dev); 728 void mlx5_start_health_poll(struct mlx5_core_dev *dev); 729 void mlx5_stop_health_poll(struct mlx5_core_dev *dev); 730 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size, 731 struct mlx5_buf *buf, int node); 732 int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, struct mlx5_buf *buf); 733 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf); 734 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev, 735 gfp_t flags, int npages); 736 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev, 737 struct mlx5_cmd_mailbox *head); 738 int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, 739 struct mlx5_create_srq_mbox_in *in, int inlen, 740 int is_xrc); 741 int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq); 742 int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, 743 struct mlx5_query_srq_mbox_out *out); 744 int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq, 745 u16 lwm, int is_srq); 746 void mlx5_init_mkey_table(struct mlx5_core_dev *dev); 747 void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev); 748 int mlx5_core_create_mkey(struct mlx5_core_dev *dev, 749 struct mlx5_core_mkey *mkey, 750 struct mlx5_create_mkey_mbox_in *in, int inlen, 751 mlx5_cmd_cbk_t callback, void *context, 752 struct mlx5_create_mkey_mbox_out *out); 753 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, 754 struct mlx5_core_mkey *mkey); 755 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey, 756 struct mlx5_query_mkey_mbox_out *out, int outlen); 757 int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *_mkey, 758 u32 *mkey); 759 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn); 760 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn); 761 int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb, 762 u16 opmod, u8 port); 763 void mlx5_pagealloc_init(struct mlx5_core_dev *dev); 764 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev); 765 int mlx5_pagealloc_start(struct mlx5_core_dev *dev); 766 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev); 767 int mlx5_sriov_init(struct mlx5_core_dev *dev); 768 int mlx5_sriov_cleanup(struct mlx5_core_dev *dev); 769 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id, 770 s32 npages); 771 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot); 772 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev); 773 void mlx5_register_debugfs(void); 774 void mlx5_unregister_debugfs(void); 775 int mlx5_eq_init(struct mlx5_core_dev *dev); 776 void mlx5_eq_cleanup(struct mlx5_core_dev *dev); 777 void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas); 778 void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn); 779 void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type); 780 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 781 void mlx5_eq_pagefault(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe); 782 #endif 783 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type); 784 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn); 785 void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec); 786 void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type); 787 int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx, 788 int nent, u64 mask, const char *name, struct mlx5_uar *uar); 789 int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq); 790 int mlx5_start_eqs(struct mlx5_core_dev *dev); 791 int mlx5_stop_eqs(struct mlx5_core_dev *dev); 792 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, 793 unsigned int *irqn); 794 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn); 795 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn); 796 797 int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev); 798 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev); 799 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in, 800 int size_in, void *data_out, int size_out, 801 u16 reg_num, int arg, int write); 802 803 int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq); 804 void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq); 805 int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq, 806 struct mlx5_query_eq_mbox_out *out, int outlen); 807 int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev); 808 void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev); 809 int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev); 810 void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev); 811 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db); 812 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db, 813 int node); 814 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db); 815 816 const char *mlx5_command_str(int command); 817 int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev); 818 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev); 819 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn, 820 int npsvs, u32 *sig_index); 821 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num); 822 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common); 823 int mlx5_query_odp_caps(struct mlx5_core_dev *dev, 824 struct mlx5_odp_caps *odp_caps); 825 int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev, 826 u8 port_num, void *out, size_t sz); 827 828 static inline int fw_initializing(struct mlx5_core_dev *dev) 829 { 830 return ioread32be(&dev->iseg->initializing) >> 31; 831 } 832 833 static inline u32 mlx5_mkey_to_idx(u32 mkey) 834 { 835 return mkey >> 8; 836 } 837 838 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx) 839 { 840 return mkey_idx << 8; 841 } 842 843 static inline u8 mlx5_mkey_variant(u32 mkey) 844 { 845 return mkey & 0xff; 846 } 847 848 enum { 849 MLX5_PROF_MASK_QP_SIZE = (u64)1 << 0, 850 MLX5_PROF_MASK_MR_CACHE = (u64)1 << 1, 851 }; 852 853 enum { 854 MAX_MR_CACHE_ENTRIES = 16, 855 }; 856 857 enum { 858 MLX5_INTERFACE_PROTOCOL_IB = 0, 859 MLX5_INTERFACE_PROTOCOL_ETH = 1, 860 }; 861 862 struct mlx5_interface { 863 void * (*add)(struct mlx5_core_dev *dev); 864 void (*remove)(struct mlx5_core_dev *dev, void *context); 865 void (*event)(struct mlx5_core_dev *dev, void *context, 866 enum mlx5_dev_event event, unsigned long param); 867 void * (*get_dev)(void *context); 868 int protocol; 869 struct list_head list; 870 }; 871 872 void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol); 873 int mlx5_register_interface(struct mlx5_interface *intf); 874 void mlx5_unregister_interface(struct mlx5_interface *intf); 875 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id); 876 877 struct mlx5_profile { 878 u64 mask; 879 u8 log_max_qp; 880 struct { 881 int size; 882 int limit; 883 } mr_cache[MAX_MR_CACHE_ENTRIES]; 884 }; 885 886 enum { 887 MLX5_PCI_DEV_IS_VF = 1 << 0, 888 }; 889 890 static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev) 891 { 892 return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF); 893 } 894 895 static inline int mlx5_get_gid_table_len(u16 param) 896 { 897 if (param > 4) { 898 pr_warn("gid table length is zero\n"); 899 return 0; 900 } 901 902 return 8 * (1 << param); 903 } 904 905 enum { 906 MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32, 907 }; 908 909 #endif /* MLX5_DRIVER_H */ 910