linux/include/linux/mlx5/driver.h
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   1/*
   2 * Copyright (c) 2013, Mellanox Technologies inc.  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
  48enum {
  49        MLX5_BOARD_ID_LEN = 64,
  50        MLX5_MAX_NAME_LEN = 16,
  51};
  52
  53enum {
  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
  61enum {
  62        CMD_OWNER_SW            = 0x0,
  63        CMD_OWNER_HW            = 0x1,
  64        CMD_STATUS_SUCCESS      = 0,
  65};
  66
  67enum 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
  75enum {
  76        MLX5_MAX_PORTS  = 2,
  77};
  78
  79enum {
  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
  86enum {
  87        MLX5_MAX_EQ_NAME        = 32
  88};
  89
  90enum {
  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
 101enum {
 102        MLX5_CMD_OP_QUERY_HCA_CAP               = 0x100,
 103        MLX5_CMD_OP_QUERY_ADAPTER               = 0x101,
 104        MLX5_CMD_OP_INIT_HCA                    = 0x102,
 105        MLX5_CMD_OP_TEARDOWN_HCA                = 0x103,
 106        MLX5_CMD_OP_ENABLE_HCA                  = 0x104,
 107        MLX5_CMD_OP_DISABLE_HCA                 = 0x105,
 108        MLX5_CMD_OP_QUERY_PAGES                 = 0x107,
 109        MLX5_CMD_OP_MANAGE_PAGES                = 0x108,
 110        MLX5_CMD_OP_SET_HCA_CAP                 = 0x109,
 111
 112        MLX5_CMD_OP_CREATE_MKEY                 = 0x200,
 113        MLX5_CMD_OP_QUERY_MKEY                  = 0x201,
 114        MLX5_CMD_OP_DESTROY_MKEY                = 0x202,
 115        MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS      = 0x203,
 116
 117        MLX5_CMD_OP_CREATE_EQ                   = 0x301,
 118        MLX5_CMD_OP_DESTROY_EQ                  = 0x302,
 119        MLX5_CMD_OP_QUERY_EQ                    = 0x303,
 120
 121        MLX5_CMD_OP_CREATE_CQ                   = 0x400,
 122        MLX5_CMD_OP_DESTROY_CQ                  = 0x401,
 123        MLX5_CMD_OP_QUERY_CQ                    = 0x402,
 124        MLX5_CMD_OP_MODIFY_CQ                   = 0x403,
 125
 126        MLX5_CMD_OP_CREATE_QP                   = 0x500,
 127        MLX5_CMD_OP_DESTROY_QP                  = 0x501,
 128        MLX5_CMD_OP_RST2INIT_QP                 = 0x502,
 129        MLX5_CMD_OP_INIT2RTR_QP                 = 0x503,
 130        MLX5_CMD_OP_RTR2RTS_QP                  = 0x504,
 131        MLX5_CMD_OP_RTS2RTS_QP                  = 0x505,
 132        MLX5_CMD_OP_SQERR2RTS_QP                = 0x506,
 133        MLX5_CMD_OP_2ERR_QP                     = 0x507,
 134        MLX5_CMD_OP_RTS2SQD_QP                  = 0x508,
 135        MLX5_CMD_OP_SQD2RTS_QP                  = 0x509,
 136        MLX5_CMD_OP_2RST_QP                     = 0x50a,
 137        MLX5_CMD_OP_QUERY_QP                    = 0x50b,
 138        MLX5_CMD_OP_CONF_SQP                    = 0x50c,
 139        MLX5_CMD_OP_MAD_IFC                     = 0x50d,
 140        MLX5_CMD_OP_INIT2INIT_QP                = 0x50e,
 141        MLX5_CMD_OP_SUSPEND_QP                  = 0x50f,
 142        MLX5_CMD_OP_UNSUSPEND_QP                = 0x510,
 143        MLX5_CMD_OP_SQD2SQD_QP                  = 0x511,
 144        MLX5_CMD_OP_ALLOC_QP_COUNTER_SET        = 0x512,
 145        MLX5_CMD_OP_DEALLOC_QP_COUNTER_SET      = 0x513,
 146        MLX5_CMD_OP_QUERY_QP_COUNTER_SET        = 0x514,
 147
 148        MLX5_CMD_OP_CREATE_PSV                  = 0x600,
 149        MLX5_CMD_OP_DESTROY_PSV                 = 0x601,
 150        MLX5_CMD_OP_QUERY_PSV                   = 0x602,
 151        MLX5_CMD_OP_QUERY_SIG_RULE_TABLE        = 0x603,
 152        MLX5_CMD_OP_QUERY_BLOCK_SIZE_TABLE      = 0x604,
 153
 154        MLX5_CMD_OP_CREATE_SRQ                  = 0x700,
 155        MLX5_CMD_OP_DESTROY_SRQ                 = 0x701,
 156        MLX5_CMD_OP_QUERY_SRQ                   = 0x702,
 157        MLX5_CMD_OP_ARM_RQ                      = 0x703,
 158        MLX5_CMD_OP_RESIZE_SRQ                  = 0x704,
 159
 160        MLX5_CMD_OP_ALLOC_PD                    = 0x800,
 161        MLX5_CMD_OP_DEALLOC_PD                  = 0x801,
 162        MLX5_CMD_OP_ALLOC_UAR                   = 0x802,
 163        MLX5_CMD_OP_DEALLOC_UAR                 = 0x803,
 164
 165        MLX5_CMD_OP_ATTACH_TO_MCG               = 0x806,
 166        MLX5_CMD_OP_DETACH_FROM_MCG             = 0x807,
 167
 168
 169        MLX5_CMD_OP_ALLOC_XRCD                  = 0x80e,
 170        MLX5_CMD_OP_DEALLOC_XRCD                = 0x80f,
 171
 172        MLX5_CMD_OP_ACCESS_REG                  = 0x805,
 173        MLX5_CMD_OP_MAX                         = 0x810,
 174};
 175
 176enum {
 177        MLX5_REG_PCAP            = 0x5001,
 178        MLX5_REG_PMTU            = 0x5003,
 179        MLX5_REG_PTYS            = 0x5004,
 180        MLX5_REG_PAOS            = 0x5006,
 181        MLX5_REG_PMAOS           = 0x5012,
 182        MLX5_REG_PUDE            = 0x5009,
 183        MLX5_REG_PMPE            = 0x5010,
 184        MLX5_REG_PELC            = 0x500e,
 185        MLX5_REG_PMLP            = 0, /* TBD */
 186        MLX5_REG_NODE_DESC       = 0x6001,
 187        MLX5_REG_HOST_ENDIANNESS = 0x7004,
 188};
 189
 190enum dbg_rsc_type {
 191        MLX5_DBG_RSC_QP,
 192        MLX5_DBG_RSC_EQ,
 193        MLX5_DBG_RSC_CQ,
 194};
 195
 196struct mlx5_field_desc {
 197        struct dentry          *dent;
 198        int                     i;
 199};
 200
 201struct mlx5_rsc_debug {
 202        struct mlx5_core_dev   *dev;
 203        void                   *object;
 204        enum dbg_rsc_type       type;
 205        struct dentry          *root;
 206        struct mlx5_field_desc  fields[0];
 207};
 208
 209enum mlx5_dev_event {
 210        MLX5_DEV_EVENT_SYS_ERROR,
 211        MLX5_DEV_EVENT_PORT_UP,
 212        MLX5_DEV_EVENT_PORT_DOWN,
 213        MLX5_DEV_EVENT_PORT_INITIALIZED,
 214        MLX5_DEV_EVENT_LID_CHANGE,
 215        MLX5_DEV_EVENT_PKEY_CHANGE,
 216        MLX5_DEV_EVENT_GUID_CHANGE,
 217        MLX5_DEV_EVENT_CLIENT_REREG,
 218};
 219
 220struct mlx5_uuar_info {
 221        struct mlx5_uar        *uars;
 222        int                     num_uars;
 223        int                     num_low_latency_uuars;
 224        unsigned long          *bitmap;
 225        unsigned int           *count;
 226        struct mlx5_bf         *bfs;
 227
 228        /*
 229         * protect uuar allocation data structs
 230         */
 231        struct mutex            lock;
 232        u32                     ver;
 233};
 234
 235struct mlx5_bf {
 236        void __iomem           *reg;
 237        void __iomem           *regreg;
 238        int                     buf_size;
 239        struct mlx5_uar        *uar;
 240        unsigned long           offset;
 241        int                     need_lock;
 242        /* protect blue flame buffer selection when needed
 243         */
 244        spinlock_t              lock;
 245
 246        /* serialize 64 bit writes when done as two 32 bit accesses
 247         */
 248        spinlock_t              lock32;
 249        int                     uuarn;
 250};
 251
 252struct mlx5_cmd_first {
 253        __be32          data[4];
 254};
 255
 256struct mlx5_cmd_msg {
 257        struct list_head                list;
 258        struct cache_ent               *cache;
 259        u32                             len;
 260        struct mlx5_cmd_first           first;
 261        struct mlx5_cmd_mailbox        *next;
 262};
 263
 264struct mlx5_cmd_debug {
 265        struct dentry          *dbg_root;
 266        struct dentry          *dbg_in;
 267        struct dentry          *dbg_out;
 268        struct dentry          *dbg_outlen;
 269        struct dentry          *dbg_status;
 270        struct dentry          *dbg_run;
 271        void                   *in_msg;
 272        void                   *out_msg;
 273        u8                      status;
 274        u16                     inlen;
 275        u16                     outlen;
 276};
 277
 278struct cache_ent {
 279        /* protect block chain allocations
 280         */
 281        spinlock_t              lock;
 282        struct list_head        head;
 283};
 284
 285struct cmd_msg_cache {
 286        struct cache_ent        large;
 287        struct cache_ent        med;
 288
 289};
 290
 291struct mlx5_cmd_stats {
 292        u64             sum;
 293        u64             n;
 294        struct dentry  *root;
 295        struct dentry  *avg;
 296        struct dentry  *count;
 297        /* protect command average calculations */
 298        spinlock_t      lock;
 299};
 300
 301struct mlx5_cmd {
 302        void           *cmd_buf;
 303        dma_addr_t      dma;
 304        u16             cmdif_rev;
 305        u8              log_sz;
 306        u8              log_stride;
 307        int             max_reg_cmds;
 308        int             events;
 309        u32 __iomem    *vector;
 310
 311        /* protect command queue allocations
 312         */
 313        spinlock_t      alloc_lock;
 314
 315        /* protect token allocations
 316         */
 317        spinlock_t      token_lock;
 318        u8              token;
 319        unsigned long   bitmask;
 320        char            wq_name[MLX5_CMD_WQ_MAX_NAME];
 321        struct workqueue_struct *wq;
 322        struct semaphore sem;
 323        struct semaphore pages_sem;
 324        int     mode;
 325        struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
 326        struct pci_pool *pool;
 327        struct mlx5_cmd_debug dbg;
 328        struct cmd_msg_cache cache;
 329        int checksum_disabled;
 330        struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
 331};
 332
 333struct mlx5_port_caps {
 334        int     gid_table_len;
 335        int     pkey_table_len;
 336};
 337
 338struct mlx5_caps {
 339        u8      log_max_eq;
 340        u8      log_max_cq;
 341        u8      log_max_qp;
 342        u8      log_max_mkey;
 343        u8      log_max_pd;
 344        u8      log_max_srq;
 345        u32     max_cqes;
 346        int     max_wqes;
 347        int     max_sq_desc_sz;
 348        int     max_rq_desc_sz;
 349        u64     flags;
 350        u16     stat_rate_support;
 351        int     log_max_msg;
 352        int     num_ports;
 353        int     max_ra_res_qp;
 354        int     max_ra_req_qp;
 355        int     max_srq_wqes;
 356        int     bf_reg_size;
 357        int     bf_regs_per_page;
 358        struct mlx5_port_caps   port[MLX5_MAX_PORTS];
 359        u8                      ext_port_cap[MLX5_MAX_PORTS];
 360        int     max_vf;
 361        u32     reserved_lkey;
 362        u8      local_ca_ack_delay;
 363        u8      log_max_mcg;
 364        u32     max_qp_mcg;
 365        int     min_page_sz;
 366};
 367
 368struct mlx5_cmd_mailbox {
 369        void           *buf;
 370        dma_addr_t      dma;
 371        struct mlx5_cmd_mailbox *next;
 372};
 373
 374struct mlx5_buf_list {
 375        void                   *buf;
 376        dma_addr_t              map;
 377};
 378
 379struct mlx5_buf {
 380        struct mlx5_buf_list    direct;
 381        struct mlx5_buf_list   *page_list;
 382        int                     nbufs;
 383        int                     npages;
 384        int                     page_shift;
 385        int                     size;
 386};
 387
 388struct mlx5_eq {
 389        struct mlx5_core_dev   *dev;
 390        __be32 __iomem         *doorbell;
 391        u32                     cons_index;
 392        struct mlx5_buf         buf;
 393        int                     size;
 394        u8                      irqn;
 395        u8                      eqn;
 396        int                     nent;
 397        u64                     mask;
 398        char                    name[MLX5_MAX_EQ_NAME];
 399        struct list_head        list;
 400        int                     index;
 401        struct mlx5_rsc_debug   *dbg;
 402};
 403
 404struct mlx5_core_psv {
 405        u32     psv_idx;
 406        struct psv_layout {
 407                u32     pd;
 408                u16     syndrome;
 409                u16     reserved;
 410                u16     bg;
 411                u16     app_tag;
 412                u32     ref_tag;
 413        } psv;
 414};
 415
 416struct mlx5_core_sig_ctx {
 417        struct mlx5_core_psv    psv_memory;
 418        struct mlx5_core_psv    psv_wire;
 419        struct ib_sig_err       err_item;
 420        bool                    sig_status_checked;
 421        bool                    sig_err_exists;
 422        u32                     sigerr_count;
 423};
 424
 425struct mlx5_core_mr {
 426        u64                     iova;
 427        u64                     size;
 428        u32                     key;
 429        u32                     pd;
 430};
 431
 432struct mlx5_core_srq {
 433        u32             srqn;
 434        int             max;
 435        int             max_gs;
 436        int             max_avail_gather;
 437        int             wqe_shift;
 438        void (*event)   (struct mlx5_core_srq *, enum mlx5_event);
 439
 440        atomic_t                refcount;
 441        struct completion       free;
 442};
 443
 444struct mlx5_eq_table {
 445        void __iomem           *update_ci;
 446        void __iomem           *update_arm_ci;
 447        struct list_head       *comp_eq_head;
 448        struct mlx5_eq          pages_eq;
 449        struct mlx5_eq          async_eq;
 450        struct mlx5_eq          cmd_eq;
 451        struct msix_entry       *msix_arr;
 452        int                     num_comp_vectors;
 453        /* protect EQs list
 454         */
 455        spinlock_t              lock;
 456};
 457
 458struct mlx5_uar {
 459        u32                     index;
 460        struct list_head        bf_list;
 461        unsigned                free_bf_bmap;
 462        void __iomem           *wc_map;
 463        void __iomem           *map;
 464};
 465
 466
 467struct mlx5_core_health {
 468        struct health_buffer __iomem   *health;
 469        __be32 __iomem                 *health_counter;
 470        struct timer_list               timer;
 471        struct list_head                list;
 472        u32                             prev;
 473        int                             miss_counter;
 474};
 475
 476struct mlx5_cq_table {
 477        /* protect radix tree
 478         */
 479        spinlock_t              lock;
 480        struct radix_tree_root  tree;
 481};
 482
 483struct mlx5_qp_table {
 484        /* protect radix tree
 485         */
 486        spinlock_t              lock;
 487        struct radix_tree_root  tree;
 488};
 489
 490struct mlx5_srq_table {
 491        /* protect radix tree
 492         */
 493        spinlock_t              lock;
 494        struct radix_tree_root  tree;
 495};
 496
 497struct mlx5_mr_table {
 498        /* protect radix tree
 499         */
 500        rwlock_t                lock;
 501        struct radix_tree_root  tree;
 502};
 503
 504struct mlx5_priv {
 505        char                    name[MLX5_MAX_NAME_LEN];
 506        struct mlx5_eq_table    eq_table;
 507        struct mlx5_uuar_info   uuari;
 508        MLX5_DECLARE_DOORBELL_LOCK(cq_uar_lock);
 509
 510        /* pages stuff */
 511        struct workqueue_struct *pg_wq;
 512        struct rb_root          page_root;
 513        int                     fw_pages;
 514        int                     reg_pages;
 515        struct list_head        free_list;
 516
 517        struct mlx5_core_health health;
 518
 519        struct mlx5_srq_table   srq_table;
 520
 521        /* start: qp staff */
 522        struct mlx5_qp_table    qp_table;
 523        struct dentry          *qp_debugfs;
 524        struct dentry          *eq_debugfs;
 525        struct dentry          *cq_debugfs;
 526        struct dentry          *cmdif_debugfs;
 527        /* end: qp staff */
 528
 529        /* start: cq staff */
 530        struct mlx5_cq_table    cq_table;
 531        /* end: cq staff */
 532
 533        /* start: mr staff */
 534        struct mlx5_mr_table    mr_table;
 535        /* end: mr staff */
 536
 537        /* start: alloc staff */
 538        struct mutex            pgdir_mutex;
 539        struct list_head        pgdir_list;
 540        /* end: alloc staff */
 541        struct dentry          *dbg_root;
 542
 543        /* protect mkey key part */
 544        spinlock_t              mkey_lock;
 545        u8                      mkey_key;
 546};
 547
 548struct mlx5_core_dev {
 549        struct pci_dev         *pdev;
 550        u8                      rev_id;
 551        char                    board_id[MLX5_BOARD_ID_LEN];
 552        struct mlx5_cmd         cmd;
 553        struct mlx5_caps        caps;
 554        phys_addr_t             iseg_base;
 555        struct mlx5_init_seg __iomem *iseg;
 556        void                    (*event) (struct mlx5_core_dev *dev,
 557                                          enum mlx5_dev_event event,
 558                                          void *data);
 559        struct mlx5_priv        priv;
 560        struct mlx5_profile     *profile;
 561        atomic_t                num_qps;
 562};
 563
 564struct mlx5_db {
 565        __be32                  *db;
 566        union {
 567                struct mlx5_db_pgdir            *pgdir;
 568                struct mlx5_ib_user_db_page     *user_page;
 569        }                       u;
 570        dma_addr_t              dma;
 571        int                     index;
 572};
 573
 574enum {
 575        MLX5_DB_PER_PAGE = PAGE_SIZE / L1_CACHE_BYTES,
 576};
 577
 578enum {
 579        MLX5_COMP_EQ_SIZE = 1024,
 580};
 581
 582struct mlx5_db_pgdir {
 583        struct list_head        list;
 584        DECLARE_BITMAP(bitmap, MLX5_DB_PER_PAGE);
 585        __be32                 *db_page;
 586        dma_addr_t              db_dma;
 587};
 588
 589typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
 590
 591struct mlx5_cmd_work_ent {
 592        struct mlx5_cmd_msg    *in;
 593        struct mlx5_cmd_msg    *out;
 594        void                   *uout;
 595        int                     uout_size;
 596        mlx5_cmd_cbk_t          callback;
 597        void                   *context;
 598        int                     idx;
 599        struct completion       done;
 600        struct mlx5_cmd        *cmd;
 601        struct work_struct      work;
 602        struct mlx5_cmd_layout *lay;
 603        int                     ret;
 604        int                     page_queue;
 605        u8                      status;
 606        u8                      token;
 607        struct timespec         ts1;
 608        struct timespec         ts2;
 609        u16                     op;
 610};
 611
 612struct mlx5_pas {
 613        u64     pa;
 614        u8      log_sz;
 615};
 616
 617static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset)
 618{
 619        if (likely(BITS_PER_LONG == 64 || buf->nbufs == 1))
 620                return buf->direct.buf + offset;
 621        else
 622                return buf->page_list[offset >> PAGE_SHIFT].buf +
 623                        (offset & (PAGE_SIZE - 1));
 624}
 625
 626extern struct workqueue_struct *mlx5_core_wq;
 627
 628#define STRUCT_FIELD(header, field) \
 629        .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field),      \
 630        .struct_size_bytes   = sizeof((struct ib_unpacked_ ## header *)0)->field
 631
 632struct ib_field {
 633        size_t struct_offset_bytes;
 634        size_t struct_size_bytes;
 635        int    offset_bits;
 636        int    size_bits;
 637};
 638
 639static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
 640{
 641        return pci_get_drvdata(pdev);
 642}
 643
 644extern struct dentry *mlx5_debugfs_root;
 645
 646static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
 647{
 648        return ioread32be(&dev->iseg->fw_rev) & 0xffff;
 649}
 650
 651static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
 652{
 653        return ioread32be(&dev->iseg->fw_rev) >> 16;
 654}
 655
 656static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
 657{
 658        return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
 659}
 660
 661static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
 662{
 663        return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
 664}
 665
 666static inline void *mlx5_vzalloc(unsigned long size)
 667{
 668        void *rtn;
 669
 670        rtn = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
 671        if (!rtn)
 672                rtn = vzalloc(size);
 673        return rtn;
 674}
 675
 676static inline void mlx5_vfree(const void *addr)
 677{
 678        if (addr && is_vmalloc_addr(addr))
 679                vfree(addr);
 680        else
 681                kfree(addr);
 682}
 683
 684static inline u32 mlx5_base_mkey(const u32 key)
 685{
 686        return key & 0xffffff00u;
 687}
 688
 689int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev);
 690void mlx5_dev_cleanup(struct mlx5_core_dev *dev);
 691int mlx5_cmd_init(struct mlx5_core_dev *dev);
 692void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
 693void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
 694void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
 695int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr);
 696int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
 697                  int out_size);
 698int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
 699                     void *out, int out_size, mlx5_cmd_cbk_t callback,
 700                     void *context);
 701int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
 702int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
 703int mlx5_alloc_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari);
 704int mlx5_free_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari);
 705void mlx5_health_cleanup(void);
 706void  __init mlx5_health_init(void);
 707void mlx5_start_health_poll(struct mlx5_core_dev *dev);
 708void mlx5_stop_health_poll(struct mlx5_core_dev *dev);
 709int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, int max_direct,
 710                   struct mlx5_buf *buf);
 711void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf);
 712struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
 713                                                      gfp_t flags, int npages);
 714void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
 715                                 struct mlx5_cmd_mailbox *head);
 716int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 717                         struct mlx5_create_srq_mbox_in *in, int inlen);
 718int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
 719int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 720                        struct mlx5_query_srq_mbox_out *out);
 721int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 722                      u16 lwm, int is_srq);
 723void mlx5_init_mr_table(struct mlx5_core_dev *dev);
 724void mlx5_cleanup_mr_table(struct mlx5_core_dev *dev);
 725int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
 726                          struct mlx5_create_mkey_mbox_in *in, int inlen,
 727                          mlx5_cmd_cbk_t callback, void *context,
 728                          struct mlx5_create_mkey_mbox_out *out);
 729int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr);
 730int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
 731                         struct mlx5_query_mkey_mbox_out *out, int outlen);
 732int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
 733                             u32 *mkey);
 734int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
 735int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
 736int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, void *inb, void *outb,
 737                      u16 opmod, int port);
 738void mlx5_pagealloc_init(struct mlx5_core_dev *dev);
 739void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
 740int mlx5_pagealloc_start(struct mlx5_core_dev *dev);
 741void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
 742void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
 743                                 s32 npages);
 744int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
 745int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
 746void mlx5_register_debugfs(void);
 747void mlx5_unregister_debugfs(void);
 748int mlx5_eq_init(struct mlx5_core_dev *dev);
 749void mlx5_eq_cleanup(struct mlx5_core_dev *dev);
 750void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas);
 751void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn);
 752void mlx5_qp_event(struct mlx5_core_dev *dev, u32 qpn, int event_type);
 753void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
 754struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
 755void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector);
 756void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type);
 757int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
 758                       int nent, u64 mask, const char *name, struct mlx5_uar *uar);
 759int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 760int mlx5_start_eqs(struct mlx5_core_dev *dev);
 761int mlx5_stop_eqs(struct mlx5_core_dev *dev);
 762int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
 763int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
 764
 765int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
 766void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
 767int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
 768                         int size_in, void *data_out, int size_out,
 769                         u16 reg_num, int arg, int write);
 770int mlx5_set_port_caps(struct mlx5_core_dev *dev, int port_num, u32 caps);
 771
 772int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 773void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 774int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq,
 775                       struct mlx5_query_eq_mbox_out *out, int outlen);
 776int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev);
 777void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev);
 778int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev);
 779void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev);
 780int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
 781void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
 782
 783const char *mlx5_command_str(int command);
 784int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
 785void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
 786int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
 787                         int npsvs, u32 *sig_index);
 788int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
 789
 790static inline u32 mlx5_mkey_to_idx(u32 mkey)
 791{
 792        return mkey >> 8;
 793}
 794
 795static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
 796{
 797        return mkey_idx << 8;
 798}
 799
 800static inline u8 mlx5_mkey_variant(u32 mkey)
 801{
 802        return mkey & 0xff;
 803}
 804
 805enum {
 806        MLX5_PROF_MASK_QP_SIZE          = (u64)1 << 0,
 807        MLX5_PROF_MASK_MR_CACHE         = (u64)1 << 1,
 808};
 809
 810enum {
 811        MAX_MR_CACHE_ENTRIES    = 16,
 812};
 813
 814struct mlx5_profile {
 815        u64     mask;
 816        u32     log_max_qp;
 817        struct {
 818                int     size;
 819                int     limit;
 820        } mr_cache[MAX_MR_CACHE_ENTRIES];
 821};
 822
 823#endif /* MLX5_DRIVER_H */
 824