include/linux/mlx5/driver.h

   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   = 7200 * 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_PCAP            = 0x5001,
 103         MLX5_REG_PMTU            = 0x5003,
 104         MLX5_REG_PTYS            = 0x5004,
 105         MLX5_REG_PAOS            = 0x5006,
 106         MLX5_REG_PFCC            = 0x5007,
 107         MLX5_REG_PPCNT           = 0x5008,
 108         MLX5_REG_PMAOS           = 0x5012,
 109         MLX5_REG_PUDE            = 0x5009,
 110         MLX5_REG_PMPE            = 0x5010,
 111         MLX5_REG_PELC            = 0x500e,
 112         MLX5_REG_PVLC            = 0x500f,
 113         MLX5_REG_PMLP            = 0, /* TBD */
 114         MLX5_REG_NODE_DESC       = 0x6001,
 115         MLX5_REG_HOST_ENDIANNESS = 0x7004,
 116 };
 117
 118 enum mlx5_page_fault_resume_flags {
 119         MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
 120         MLX5_PAGE_FAULT_RESUME_WRITE     = 1 << 1,
 121         MLX5_PAGE_FAULT_RESUME_RDMA      = 1 << 2,
 122         MLX5_PAGE_FAULT_RESUME_ERROR     = 1 << 7,
 123 };
 124
 125 enum dbg_rsc_type {
 126         MLX5_DBG_RSC_QP,
 127         MLX5_DBG_RSC_EQ,
 128         MLX5_DBG_RSC_CQ,
 129 };
 130
 131 struct mlx5_field_desc {
 132         struct dentry          *dent;
 133         int                     i;
 134 };
 135
 136 struct mlx5_rsc_debug {
 137         struct mlx5_core_dev   *dev;
 138         void                   *object;
 139         enum dbg_rsc_type       type;
 140         struct dentry          *root;
 141         struct mlx5_field_desc  fields[0];
 142 };
 143
 144 enum mlx5_dev_event {
 145         MLX5_DEV_EVENT_SYS_ERROR,
 146         MLX5_DEV_EVENT_PORT_UP,
 147         MLX5_DEV_EVENT_PORT_DOWN,
 148         MLX5_DEV_EVENT_PORT_INITIALIZED,
 149         MLX5_DEV_EVENT_LID_CHANGE,
 150         MLX5_DEV_EVENT_PKEY_CHANGE,
 151         MLX5_DEV_EVENT_GUID_CHANGE,
 152         MLX5_DEV_EVENT_CLIENT_REREG,
 153 };
 154
 155 enum mlx5_port_status {
 156         MLX5_PORT_UP        = 1,
 157         MLX5_PORT_DOWN      = 2,
 158 };
 159
 160 struct mlx5_uuar_info {
 161         struct mlx5_uar        *uars;
 162         int                     num_uars;
 163         int                     num_low_latency_uuars;
 164         unsigned long          *bitmap;
 165         unsigned int           *count;
 166         struct mlx5_bf         *bfs;
 167
 168         /*
 169          * protect uuar allocation data structs
 170          */
 171         struct mutex            lock;
 172         u32                     ver;
 173 };
 174
 175 struct mlx5_bf {
 176         void __iomem           *reg;
 177         void __iomem           *regreg;
 178         int                     buf_size;
 179         struct mlx5_uar        *uar;
 180         unsigned long           offset;
 181         int                     need_lock;
 182         /* protect blue flame buffer selection when needed
 183          */
 184         spinlock_t              lock;
 185
 186         /* serialize 64 bit writes when done as two 32 bit accesses
 187          */
 188         spinlock_t              lock32;
 189         int                     uuarn;
 190 };
 191
 192 struct mlx5_cmd_first {
 193         __be32          data[4];
 194 };
 195
 196 struct mlx5_cmd_msg {
 197         struct list_head                list;
 198         struct cache_ent               *cache;
 199         u32                             len;
 200         struct mlx5_cmd_first           first;
 201         struct mlx5_cmd_mailbox        *next;
 202 };
 203
 204 struct mlx5_cmd_debug {
 205         struct dentry          *dbg_root;
 206         struct dentry          *dbg_in;
 207         struct dentry          *dbg_out;
 208         struct dentry          *dbg_outlen;
 209         struct dentry          *dbg_status;
 210         struct dentry          *dbg_run;
 211         void                   *in_msg;
 212         void                   *out_msg;
 213         u8                      status;
 214         u16                     inlen;
 215         u16                     outlen;
 216 };
 217
 218 struct cache_ent {
 219         /* protect block chain allocations
 220          */
 221         spinlock_t              lock;
 222         struct list_head        head;
 223 };
 224
 225 struct cmd_msg_cache {
 226         struct cache_ent        large;
 227         struct cache_ent        med;
 228
 229 };
 230
 231 struct mlx5_cmd_stats {
 232         u64             sum;
 233         u64             n;
 234         struct dentry  *root;
 235         struct dentry  *avg;
 236         struct dentry  *count;
 237         /* protect command average calculations */
 238         spinlock_t      lock;
 239 };
 240
 241 struct mlx5_cmd {
 242         void           *cmd_alloc_buf;
 243         dma_addr_t      alloc_dma;
 244         int             alloc_size;
 245         void           *cmd_buf;
 246         dma_addr_t      dma;
 247         u16             cmdif_rev;
 248         u8              log_sz;
 249         u8              log_stride;
 250         int             max_reg_cmds;
 251         int             events;
 252         u32 __iomem    *vector;
 253
 254         /* protect command queue allocations
 255          */
 256         spinlock_t      alloc_lock;
 257
 258         /* protect token allocations
 259          */
 260         spinlock_t      token_lock;
 261         u8              token;
 262         unsigned long   bitmask;
 263         char            wq_name[MLX5_CMD_WQ_MAX_NAME];
 264         struct workqueue_struct *wq;
 265         struct semaphore sem;
 266         struct semaphore pages_sem;
 267         int     mode;
 268         struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
 269         struct pci_pool *pool;
 270         struct mlx5_cmd_debug dbg;
 271         struct cmd_msg_cache cache;
 272         int checksum_disabled;
 273         struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
 274 };
 275
 276 struct mlx5_port_caps {
 277         int     gid_table_len;
 278         int     pkey_table_len;
 279         u8      ext_port_cap;
 280 };
 281
 282 struct mlx5_cmd_mailbox {
 283         void           *buf;
 284         dma_addr_t      dma;
 285         struct mlx5_cmd_mailbox *next;
 286 };
 287
 288 struct mlx5_buf_list {
 289         void                   *buf;
 290         dma_addr_t              map;
 291 };
 292
 293 struct mlx5_buf {
 294         struct mlx5_buf_list    direct;
 295         int                     npages;
 296         int                     size;
 297         u8                      page_shift;
 298 };
 299
 300 struct mlx5_eq {
 301         struct mlx5_core_dev   *dev;
 302         __be32 __iomem         *doorbell;
 303         u32                     cons_index;
 304         struct mlx5_buf         buf;
 305         int                     size;
 306         u8                      irqn;
 307         u8                      eqn;
 308         int                     nent;
 309         u64                     mask;
 310         struct list_head        list;
 311         int                     index;
 312         struct mlx5_rsc_debug   *dbg;
 313 };
 314
 315 struct mlx5_core_psv {
 316         u32     psv_idx;
 317         struct psv_layout {
 318                 u32     pd;
 319                 u16     syndrome;
 320                 u16     reserved;
 321                 u16     bg;
 322                 u16     app_tag;
 323                 u32     ref_tag;
 324         } psv;
 325 };
 326
 327 struct mlx5_core_sig_ctx {
 328         struct mlx5_core_psv    psv_memory;
 329         struct mlx5_core_psv    psv_wire;
 330         struct ib_sig_err       err_item;
 331         bool                    sig_status_checked;
 332         bool                    sig_err_exists;
 333         u32                     sigerr_count;
 334 };
 335
 336 struct mlx5_core_mr {
 337         u64                     iova;
 338         u64                     size;
 339         u32                     key;
 340         u32                     pd;
 341 };
 342
 343 enum mlx5_res_type {
 344         MLX5_RES_QP,
 345         MLX5_RES_SRQ,
 346         MLX5_RES_XSRQ,
 347 };
 348
 349 struct mlx5_core_rsc_common {
 350         enum mlx5_res_type      res;
 351         atomic_t                refcount;
 352         struct completion       free;
 353 };
 354
 355 struct mlx5_core_srq {
 356         struct mlx5_core_rsc_common     common; /* must be first */
 357         u32             srqn;
 358         int             max;
 359         int             max_gs;
 360         int             max_avail_gather;
 361         int             wqe_shift;
 362         void (*event)   (struct mlx5_core_srq *, enum mlx5_event);
 363
 364         atomic_t                refcount;
 365         struct completion       free;
 366 };
 367
 368 struct mlx5_eq_table {
 369         void __iomem           *update_ci;
 370         void __iomem           *update_arm_ci;
 371         struct list_head        comp_eqs_list;
 372         struct mlx5_eq          pages_eq;
 373         struct mlx5_eq          async_eq;
 374         struct mlx5_eq          cmd_eq;
 375         int                     num_comp_vectors;
 376         /* protect EQs list
 377          */
 378         spinlock_t              lock;
 379 };
 380
 381 struct mlx5_uar {
 382         u32                     index;
 383         struct list_head        bf_list;
 384         unsigned                free_bf_bmap;
 385         void __iomem           *bf_map;
 386         void __iomem           *map;
 387 };
 388
 389
 390 struct mlx5_core_health {
 391         struct health_buffer __iomem   *health;
 392         __be32 __iomem                 *health_counter;
 393         struct timer_list               timer;
 394         struct list_head                list;
 395         u32                             prev;
 396         int                             miss_counter;
 397 };
 398
 399 struct mlx5_cq_table {
 400         /* protect radix tree
 401          */
 402         spinlock_t              lock;
 403         struct radix_tree_root  tree;
 404 };
 405
 406 struct mlx5_qp_table {
 407         /* protect radix tree
 408          */
 409         spinlock_t              lock;
 410         struct radix_tree_root  tree;
 411 };
 412
 413 struct mlx5_srq_table {
 414         /* protect radix tree
 415          */
 416         spinlock_t              lock;
 417         struct radix_tree_root  tree;
 418 };
 419
 420 struct mlx5_mr_table {
 421         /* protect radix tree
 422          */
 423         rwlock_t                lock;
 424         struct radix_tree_root  tree;
 425 };
 426
 427 struct mlx5_irq_info {
 428         cpumask_var_t mask;
 429         char name[MLX5_MAX_IRQ_NAME];
 430 };
 431
 432 struct mlx5_priv {
 433         char                    name[MLX5_MAX_NAME_LEN];
 434         struct mlx5_eq_table    eq_table;
 435         struct msix_entry       *msix_arr;
 436         struct mlx5_irq_info    *irq_info;
 437         struct mlx5_uuar_info   uuari;
 438         MLX5_DECLARE_DOORBELL_LOCK(cq_uar_lock);
 439
 440         struct io_mapping       *bf_mapping;
 441
 442         /* pages stuff */
 443         struct workqueue_struct *pg_wq;
 444         struct rb_root          page_root;
 445         int                     fw_pages;
 446         atomic_t                reg_pages;
 447         struct list_head        free_list;
 448
 449         struct mlx5_core_health health;
 450
 451         struct mlx5_srq_table   srq_table;
 452
 453         /* start: qp staff */
 454         struct mlx5_qp_table    qp_table;
 455         struct dentry          *qp_debugfs;
 456         struct dentry          *eq_debugfs;
 457         struct dentry          *cq_debugfs;
 458         struct dentry          *cmdif_debugfs;
 459         /* end: qp staff */
 460
 461         /* start: cq staff */
 462         struct mlx5_cq_table    cq_table;
 463         /* end: cq staff */
 464
 465         /* start: mr staff */
 466         struct mlx5_mr_table    mr_table;
 467         /* end: mr staff */
 468
 469         /* start: alloc staff */
 470         /* protect buffer alocation according to numa node */
 471         struct mutex            alloc_mutex;
 472         int                     numa_node;
 473
 474         struct mutex            pgdir_mutex;
 475         struct list_head        pgdir_list;
 476         /* end: alloc staff */
 477         struct dentry          *dbg_root;
 478
 479         /* protect mkey key part */
 480         spinlock_t              mkey_lock;
 481         u8                      mkey_key;
 482
 483         struct list_head        dev_list;
 484         struct list_head        ctx_list;
 485         spinlock_t              ctx_lock;
 486 };
 487
 488 struct mlx5_core_dev {
 489         struct pci_dev         *pdev;
 490         u8                      rev_id;
 491         char                    board_id[MLX5_BOARD_ID_LEN];
 492         struct mlx5_cmd         cmd;
 493         struct mlx5_port_caps   port_caps[MLX5_MAX_PORTS];
 494         u32 hca_caps_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
 495         u32 hca_caps_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
 496         phys_addr_t             iseg_base;
 497         struct mlx5_init_seg __iomem *iseg;
 498         void                    (*event) (struct mlx5_core_dev *dev,
 499                                           enum mlx5_dev_event event,
 500                                           unsigned long param);
 501         struct mlx5_priv        priv;
 502         struct mlx5_profile     *profile;
 503         atomic_t                num_qps;
 504         u32                     issi;
 505 };
 506
 507 struct mlx5_db {
 508         __be32                  *db;
 509         union {
 510                 struct mlx5_db_pgdir            *pgdir;
 511                 struct mlx5_ib_user_db_page     *user_page;
 512         }                       u;
 513         dma_addr_t              dma;
 514         int                     index;
 515 };
 516
 517 enum {
 518         MLX5_DB_PER_PAGE = PAGE_SIZE / L1_CACHE_BYTES,
 519 };
 520
 521 enum {
 522         MLX5_COMP_EQ_SIZE = 1024,
 523 };
 524
 525 enum {
 526         MLX5_PTYS_IB = 1 << 0,
 527         MLX5_PTYS_EN = 1 << 2,
 528 };
 529
 530 struct mlx5_db_pgdir {
 531         struct list_head        list;
 532         DECLARE_BITMAP(bitmap, MLX5_DB_PER_PAGE);
 533         __be32                 *db_page;
 534         dma_addr_t              db_dma;
 535 };
 536
 537 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
 538
 539 struct mlx5_cmd_work_ent {
 540         struct mlx5_cmd_msg    *in;
 541         struct mlx5_cmd_msg    *out;
 542         void                   *uout;
 543         int                     uout_size;
 544         mlx5_cmd_cbk_t          callback;
 545         void                   *context;
 546         int                     idx;
 547         struct completion       done;
 548         struct mlx5_cmd        *cmd;
 549         struct work_struct      work;
 550         struct mlx5_cmd_layout *lay;
 551         int                     ret;
 552         int                     page_queue;
 553         u8                      status;
 554         u8                      token;
 555         u64                     ts1;
 556         u64                     ts2;
 557         u16                     op;
 558 };
 559
 560 struct mlx5_pas {
 561         u64     pa;
 562         u8      log_sz;
 563 };
 564
 565 enum port_state_policy {
 566         MLX5_AAA_000
 567 };
 568
 569 enum phy_port_state {
 570         MLX5_AAA_111
 571 };
 572
 573 struct mlx5_hca_vport_context {
 574         u32                     field_select;
 575         bool                    sm_virt_aware;
 576         bool                    has_smi;
 577         bool                    has_raw;
 578         enum port_state_policy  policy;
 579         enum phy_port_state     phys_state;
 580         enum ib_port_state      vport_state;
 581         u8                      port_physical_state;
 582         u64                     sys_image_guid;
 583         u64                     port_guid;
 584         u64                     node_guid;
 585         u32                     cap_mask1;
 586         u32                     cap_mask1_perm;
 587         u32                     cap_mask2;
 588         u32                     cap_mask2_perm;
 589         u16                     lid;
 590         u8                      init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
 591         u8                      lmc;
 592         u8                      subnet_timeout;
 593         u16                     sm_lid;
 594         u8                      sm_sl;
 595         u16                     qkey_violation_counter;
 596         u16                     pkey_violation_counter;
 597         bool                    grh_required;
 598 };
 599
 600 static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset)
 601 {
 602                 return buf->direct.buf + offset;
 603 }
 604
 605 extern struct workqueue_struct *mlx5_core_wq;
 606
 607 #define STRUCT_FIELD(header, field) \
 608         .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field),      \
 609         .struct_size_bytes   = sizeof((struct ib_unpacked_ ## header *)0)->field
 610
 611 struct ib_field {
 612         size_t struct_offset_bytes;
 613         size_t struct_size_bytes;
 614         int    offset_bits;
 615         int    size_bits;
 616 };
 617
 618 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
 619 {
 620         return pci_get_drvdata(pdev);
 621 }
 622
 623 extern struct dentry *mlx5_debugfs_root;
 624
 625 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
 626 {
 627         return ioread32be(&dev->iseg->fw_rev) & 0xffff;
 628 }
 629
 630 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
 631 {
 632         return ioread32be(&dev->iseg->fw_rev) >> 16;
 633 }
 634
 635 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
 636 {
 637         return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
 638 }
 639
 640 static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
 641 {
 642         return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
 643 }
 644
 645 static inline void *mlx5_vzalloc(unsigned long size)
 646 {
 647         void *rtn;
 648
 649         rtn = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
 650         if (!rtn)
 651                 rtn = vzalloc(size);
 652         return rtn;
 653 }
 654
 655 static inline u32 mlx5_base_mkey(const u32 key)
 656 {
 657         return key & 0xffffff00u;
 658 }
 659
 660 int mlx5_cmd_init(struct mlx5_core_dev *dev);
 661 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
 662 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
 663 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
 664 int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr);
 665 int mlx5_cmd_status_to_err_v2(void *ptr);
 666 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type,
 667                        enum mlx5_cap_mode cap_mode);
 668 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
 669                   int out_size);
 670 int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
 671                      void *out, int out_size, mlx5_cmd_cbk_t callback,
 672                      void *context);
 673 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
 674 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
 675 int mlx5_alloc_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari);
 676 int mlx5_free_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari);
 677 int mlx5_alloc_map_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar);
 678 void mlx5_unmap_free_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar);
 679 void mlx5_health_cleanup(void);
 680 void  __init mlx5_health_init(void);
 681 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
 682 void mlx5_stop_health_poll(struct mlx5_core_dev *dev);
 683 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
 684                         struct mlx5_buf *buf, int node);
 685 int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, struct mlx5_buf *buf);
 686 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf);
 687 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
 688                                                       gfp_t flags, int npages);
 689 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
 690                                  struct mlx5_cmd_mailbox *head);
 691 int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 692                          struct mlx5_create_srq_mbox_in *in, int inlen,
 693                          int is_xrc);
 694 int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
 695 int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 696                         struct mlx5_query_srq_mbox_out *out);
 697 int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 698                       u16 lwm, int is_srq);
 699 void mlx5_init_mr_table(struct mlx5_core_dev *dev);
 700 void mlx5_cleanup_mr_table(struct mlx5_core_dev *dev);
 701 int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
 702                           struct mlx5_create_mkey_mbox_in *in, int inlen,
 703                           mlx5_cmd_cbk_t callback, void *context,
 704                           struct mlx5_create_mkey_mbox_out *out);
 705 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr);
 706 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
 707                          struct mlx5_query_mkey_mbox_out *out, int outlen);
 708 int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
 709                              u32 *mkey);
 710 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
 711 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
 712 int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
 713                       u16 opmod, u8 port);
 714 void mlx5_pagealloc_init(struct mlx5_core_dev *dev);
 715 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
 716 int mlx5_pagealloc_start(struct mlx5_core_dev *dev);
 717 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
 718 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
 719                                  s32 npages);
 720 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
 721 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
 722 void mlx5_register_debugfs(void);
 723 void mlx5_unregister_debugfs(void);
 724 int mlx5_eq_init(struct mlx5_core_dev *dev);
 725 void mlx5_eq_cleanup(struct mlx5_core_dev *dev);
 726 void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas);
 727 void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn);
 728 void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
 729 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
 730 void mlx5_eq_pagefault(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe);
 731 #endif
 732 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
 733 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
 734 void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector);
 735 void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type);
 736 int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
 737                        int nent, u64 mask, const char *name, struct mlx5_uar *uar);
 738 int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 739 int mlx5_start_eqs(struct mlx5_core_dev *dev);
 740 int mlx5_stop_eqs(struct mlx5_core_dev *dev);
 741 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn, int *irqn);
 742 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
 743 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
 744
 745 int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
 746 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
 747 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
 748                          int size_in, void *data_out, int size_out,
 749                          u16 reg_num, int arg, int write);
 750
 751 int mlx5_set_port_caps(struct mlx5_core_dev *dev, u8 port_num, u32 caps);
 752 int mlx5_query_port_ptys(struct mlx5_core_dev *dev, u32 *ptys,
 753                          int ptys_size, int proto_mask, u8 local_port);
 754 int mlx5_query_port_proto_cap(struct mlx5_core_dev *dev,
 755                               u32 *proto_cap, int proto_mask);
 756 int mlx5_query_port_proto_admin(struct mlx5_core_dev *dev,
 757                                 u32 *proto_admin, int proto_mask);
 758 int mlx5_query_port_link_width_oper(struct mlx5_core_dev *dev,
 759                                     u8 *link_width_oper, u8 local_port);
 760 int mlx5_query_port_proto_oper(struct mlx5_core_dev *dev,
 761                                u8 *proto_oper, int proto_mask,
 762                                u8 local_port);
 763 int mlx5_set_port_proto(struct mlx5_core_dev *dev, u32 proto_admin,
 764                         int proto_mask);
 765 int mlx5_set_port_admin_status(struct mlx5_core_dev *dev,
 766                                enum mlx5_port_status status);
 767 int mlx5_query_port_admin_status(struct mlx5_core_dev *dev,
 768                                  enum mlx5_port_status *status);
 769
 770 int mlx5_set_port_mtu(struct mlx5_core_dev *dev, int mtu, u8 port);
 771 void mlx5_query_port_max_mtu(struct mlx5_core_dev *dev, int *max_mtu, u8 port);
 772 void mlx5_query_port_oper_mtu(struct mlx5_core_dev *dev, int *oper_mtu,
 773                               u8 port);
 774
 775 int mlx5_query_port_vl_hw_cap(struct mlx5_core_dev *dev,
 776                               u8 *vl_hw_cap, u8 local_port);
 777
 778 int mlx5_set_port_pause(struct mlx5_core_dev *dev, u32 rx_pause, u32 tx_pause);
 779 int mlx5_query_port_pause(struct mlx5_core_dev *dev,
 780                           u32 *rx_pause, u32 *tx_pause);
 781
 782 int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 783 void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 784 int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq,
 785                        struct mlx5_query_eq_mbox_out *out, int outlen);
 786 int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev);
 787 void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev);
 788 int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev);
 789 void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev);
 790 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
 791 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
 792                        int node);
 793 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
 794
 795 const char *mlx5_command_str(int command);
 796 int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
 797 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
 798 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
 799                          int npsvs, u32 *sig_index);
 800 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
 801 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
 802 int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
 803                         struct mlx5_odp_caps *odp_caps);
 804
 805 static inline u32 mlx5_mkey_to_idx(u32 mkey)
 806 {
 807         return mkey >> 8;
 808 }
 809
 810 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
 811 {
 812         return mkey_idx << 8;
 813 }
 814
 815 static inline u8 mlx5_mkey_variant(u32 mkey)
 816 {
 817         return mkey & 0xff;
 818 }
 819
 820 enum {
 821         MLX5_PROF_MASK_QP_SIZE          = (u64)1 << 0,
 822         MLX5_PROF_MASK_MR_CACHE         = (u64)1 << 1,
 823 };
 824
 825 enum {
 826         MAX_MR_CACHE_ENTRIES    = 16,
 827 };
 828
 829 enum {
 830         MLX5_INTERFACE_PROTOCOL_IB  = 0,
 831         MLX5_INTERFACE_PROTOCOL_ETH = 1,
 832 };
 833
 834 struct mlx5_interface {
 835         void *                  (*add)(struct mlx5_core_dev *dev);
 836         void                    (*remove)(struct mlx5_core_dev *dev, void *context);
 837         void                    (*event)(struct mlx5_core_dev *dev, void *context,
 838                                          enum mlx5_dev_event event, unsigned long param);
 839         void *                  (*get_dev)(void *context);
 840         int                     protocol;
 841         struct list_head        list;
 842 };
 843
 844 void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
 845 int mlx5_register_interface(struct mlx5_interface *intf);
 846 void mlx5_unregister_interface(struct mlx5_interface *intf);
 847 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
 848
 849 struct mlx5_profile {
 850         u64     mask;
 851         u8      log_max_qp;
 852         struct {
 853                 int     size;
 854                 int     limit;
 855         } mr_cache[MAX_MR_CACHE_ENTRIES];
 856 };
 857
 858 static inline int mlx5_get_gid_table_len(u16 param)
 859 {
 860         if (param > 4) {
 861                 pr_warn("gid table length is zero\n");
 862                 return 0;
 863         }
 864
 865         return 8 * (1 << param);
 866 }
 867
 868 #endif /* MLX5_DRIVER_H */