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 #include <linux/workqueue.h>
  45 #include <linux/interrupt.h>
  46
  47 #include <linux/mlx5/device.h>
  48 #include <linux/mlx5/doorbell.h>
  49 #include <linux/mlx5/srq.h>
  50
  51 enum {
  52         MLX5_BOARD_ID_LEN = 64,
  53         MLX5_MAX_NAME_LEN = 16,
  54 };
  55
  56 enum {
  57         /* one minute for the sake of bringup. Generally, commands must always
  58          * complete and we may need to increase this timeout value
  59          */
  60         MLX5_CMD_TIMEOUT_MSEC   = 60 * 1000,
  61         MLX5_CMD_WQ_MAX_NAME    = 32,
  62 };
  63
  64 enum {
  65         CMD_OWNER_SW            = 0x0,
  66         CMD_OWNER_HW            = 0x1,
  67         CMD_STATUS_SUCCESS      = 0,
  68 };
  69
  70 enum mlx5_sqp_t {
  71         MLX5_SQP_SMI            = 0,
  72         MLX5_SQP_GSI            = 1,
  73         MLX5_SQP_IEEE_1588      = 2,
  74         MLX5_SQP_SNIFFER        = 3,
  75         MLX5_SQP_SYNC_UMR       = 4,
  76 };
  77
  78 enum {
  79         MLX5_MAX_PORTS  = 2,
  80 };
  81
  82 enum {
  83         MLX5_EQ_VEC_PAGES        = 0,
  84         MLX5_EQ_VEC_CMD          = 1,
  85         MLX5_EQ_VEC_ASYNC        = 2,
  86         MLX5_EQ_VEC_COMP_BASE,
  87 };
  88
  89 enum {
  90         MLX5_MAX_IRQ_NAME       = 32
  91 };
  92
  93 enum {
  94         MLX5_ATOMIC_MODE_IB_COMP        = 1 << 16,
  95         MLX5_ATOMIC_MODE_CX             = 2 << 16,
  96         MLX5_ATOMIC_MODE_8B             = 3 << 16,
  97         MLX5_ATOMIC_MODE_16B            = 4 << 16,
  98         MLX5_ATOMIC_MODE_32B            = 5 << 16,
  99         MLX5_ATOMIC_MODE_64B            = 6 << 16,
 100         MLX5_ATOMIC_MODE_128B           = 7 << 16,
 101         MLX5_ATOMIC_MODE_256B           = 8 << 16,
 102 };
 103
 104 enum {
 105         MLX5_REG_QETCR           = 0x4005,
 106         MLX5_REG_QTCT            = 0x400a,
 107         MLX5_REG_PCAP            = 0x5001,
 108         MLX5_REG_PMTU            = 0x5003,
 109         MLX5_REG_PTYS            = 0x5004,
 110         MLX5_REG_PAOS            = 0x5006,
 111         MLX5_REG_PFCC            = 0x5007,
 112         MLX5_REG_PPCNT           = 0x5008,
 113         MLX5_REG_PMAOS           = 0x5012,
 114         MLX5_REG_PUDE            = 0x5009,
 115         MLX5_REG_PMPE            = 0x5010,
 116         MLX5_REG_PELC            = 0x500e,
 117         MLX5_REG_PVLC            = 0x500f,
 118         MLX5_REG_PCMR            = 0x5041,
 119         MLX5_REG_PMLP            = 0x5002,
 120         MLX5_REG_NODE_DESC       = 0x6001,
 121         MLX5_REG_HOST_ENDIANNESS = 0x7004,
 122         MLX5_REG_MCIA            = 0x9014,
 123         MLX5_REG_MLCR            = 0x902b,
 124 };
 125
 126 enum {
 127         MLX5_ATOMIC_OPS_CMP_SWAP        = 1 << 0,
 128         MLX5_ATOMIC_OPS_FETCH_ADD       = 1 << 1,
 129 };
 130
 131 enum mlx5_page_fault_resume_flags {
 132         MLX5_PAGE_FAULT_RESUME_REQUESTOR = 1 << 0,
 133         MLX5_PAGE_FAULT_RESUME_WRITE     = 1 << 1,
 134         MLX5_PAGE_FAULT_RESUME_RDMA      = 1 << 2,
 135         MLX5_PAGE_FAULT_RESUME_ERROR     = 1 << 7,
 136 };
 137
 138 enum dbg_rsc_type {
 139         MLX5_DBG_RSC_QP,
 140         MLX5_DBG_RSC_EQ,
 141         MLX5_DBG_RSC_CQ,
 142 };
 143
 144 struct mlx5_field_desc {
 145         struct dentry          *dent;
 146         int                     i;
 147 };
 148
 149 struct mlx5_rsc_debug {
 150         struct mlx5_core_dev   *dev;
 151         void                   *object;
 152         enum dbg_rsc_type       type;
 153         struct dentry          *root;
 154         struct mlx5_field_desc  fields[0];
 155 };
 156
 157 enum mlx5_dev_event {
 158         MLX5_DEV_EVENT_SYS_ERROR,
 159         MLX5_DEV_EVENT_PORT_UP,
 160         MLX5_DEV_EVENT_PORT_DOWN,
 161         MLX5_DEV_EVENT_PORT_INITIALIZED,
 162         MLX5_DEV_EVENT_LID_CHANGE,
 163         MLX5_DEV_EVENT_PKEY_CHANGE,
 164         MLX5_DEV_EVENT_GUID_CHANGE,
 165         MLX5_DEV_EVENT_CLIENT_REREG,
 166 };
 167
 168 enum mlx5_port_status {
 169         MLX5_PORT_UP        = 1,
 170         MLX5_PORT_DOWN      = 2,
 171 };
 172
 173 struct mlx5_uuar_info {
 174         struct mlx5_uar        *uars;
 175         int                     num_uars;
 176         int                     num_low_latency_uuars;
 177         unsigned long          *bitmap;
 178         unsigned int           *count;
 179         struct mlx5_bf         *bfs;
 180
 181         /*
 182          * protect uuar allocation data structs
 183          */
 184         struct mutex            lock;
 185         u32                     ver;
 186 };
 187
 188 struct mlx5_bf {
 189         void __iomem           *reg;
 190         void __iomem           *regreg;
 191         int                     buf_size;
 192         struct mlx5_uar        *uar;
 193         unsigned long           offset;
 194         int                     need_lock;
 195         /* protect blue flame buffer selection when needed
 196          */
 197         spinlock_t              lock;
 198
 199         /* serialize 64 bit writes when done as two 32 bit accesses
 200          */
 201         spinlock_t              lock32;
 202         int                     uuarn;
 203 };
 204
 205 struct mlx5_cmd_first {
 206         __be32          data[4];
 207 };
 208
 209 struct mlx5_cmd_msg {
 210         struct list_head                list;
 211         struct cache_ent               *cache;
 212         u32                             len;
 213         struct mlx5_cmd_first           first;
 214         struct mlx5_cmd_mailbox        *next;
 215 };
 216
 217 struct mlx5_cmd_debug {
 218         struct dentry          *dbg_root;
 219         struct dentry          *dbg_in;
 220         struct dentry          *dbg_out;
 221         struct dentry          *dbg_outlen;
 222         struct dentry          *dbg_status;
 223         struct dentry          *dbg_run;
 224         void                   *in_msg;
 225         void                   *out_msg;
 226         u8                      status;
 227         u16                     inlen;
 228         u16                     outlen;
 229 };
 230
 231 struct cache_ent {
 232         /* protect block chain allocations
 233          */
 234         spinlock_t              lock;
 235         struct list_head        head;
 236 };
 237
 238 struct cmd_msg_cache {
 239         struct cache_ent        large;
 240         struct cache_ent        med;
 241
 242 };
 243
 244 struct mlx5_cmd_stats {
 245         u64             sum;
 246         u64             n;
 247         struct dentry  *root;
 248         struct dentry  *avg;
 249         struct dentry  *count;
 250         /* protect command average calculations */
 251         spinlock_t      lock;
 252 };
 253
 254 struct mlx5_cmd {
 255         void           *cmd_alloc_buf;
 256         dma_addr_t      alloc_dma;
 257         int             alloc_size;
 258         void           *cmd_buf;
 259         dma_addr_t      dma;
 260         u16             cmdif_rev;
 261         u8              log_sz;
 262         u8              log_stride;
 263         int             max_reg_cmds;
 264         int             events;
 265         u32 __iomem    *vector;
 266
 267         /* protect command queue allocations
 268          */
 269         spinlock_t      alloc_lock;
 270
 271         /* protect token allocations
 272          */
 273         spinlock_t      token_lock;
 274         u8              token;
 275         unsigned long   bitmask;
 276         char            wq_name[MLX5_CMD_WQ_MAX_NAME];
 277         struct workqueue_struct *wq;
 278         struct semaphore sem;
 279         struct semaphore pages_sem;
 280         int     mode;
 281         struct mlx5_cmd_work_ent *ent_arr[MLX5_MAX_COMMANDS];
 282         struct pci_pool *pool;
 283         struct mlx5_cmd_debug dbg;
 284         struct cmd_msg_cache cache;
 285         int checksum_disabled;
 286         struct mlx5_cmd_stats stats[MLX5_CMD_OP_MAX];
 287 };
 288
 289 struct mlx5_port_caps {
 290         int     gid_table_len;
 291         int     pkey_table_len;
 292         u8      ext_port_cap;
 293 };
 294
 295 struct mlx5_cmd_mailbox {
 296         void           *buf;
 297         dma_addr_t      dma;
 298         struct mlx5_cmd_mailbox *next;
 299 };
 300
 301 struct mlx5_buf_list {
 302         void                   *buf;
 303         dma_addr_t              map;
 304 };
 305
 306 struct mlx5_buf {
 307         struct mlx5_buf_list    direct;
 308         int                     npages;
 309         int                     size;
 310         u8                      page_shift;
 311 };
 312
 313 struct mlx5_eq_tasklet {
 314         struct list_head list;
 315         struct list_head process_list;
 316         struct tasklet_struct task;
 317         /* lock on completion tasklet list */
 318         spinlock_t lock;
 319 };
 320
 321 struct mlx5_eq {
 322         struct mlx5_core_dev   *dev;
 323         __be32 __iomem         *doorbell;
 324         u32                     cons_index;
 325         struct mlx5_buf         buf;
 326         int                     size;
 327         unsigned int            irqn;
 328         u8                      eqn;
 329         int                     nent;
 330         u64                     mask;
 331         struct list_head        list;
 332         int                     index;
 333         struct mlx5_rsc_debug   *dbg;
 334         struct mlx5_eq_tasklet  tasklet_ctx;
 335 };
 336
 337 struct mlx5_core_psv {
 338         u32     psv_idx;
 339         struct psv_layout {
 340                 u32     pd;
 341                 u16     syndrome;
 342                 u16     reserved;
 343                 u16     bg;
 344                 u16     app_tag;
 345                 u32     ref_tag;
 346         } psv;
 347 };
 348
 349 struct mlx5_core_sig_ctx {
 350         struct mlx5_core_psv    psv_memory;
 351         struct mlx5_core_psv    psv_wire;
 352         struct ib_sig_err       err_item;
 353         bool                    sig_status_checked;
 354         bool                    sig_err_exists;
 355         u32                     sigerr_count;
 356 };
 357
 358 struct mlx5_core_mkey {
 359         u64                     iova;
 360         u64                     size;
 361         u32                     key;
 362         u32                     pd;
 363 };
 364
 365 enum mlx5_res_type {
 366         MLX5_RES_QP     = MLX5_EVENT_QUEUE_TYPE_QP,
 367         MLX5_RES_RQ     = MLX5_EVENT_QUEUE_TYPE_RQ,
 368         MLX5_RES_SQ     = MLX5_EVENT_QUEUE_TYPE_SQ,
 369         MLX5_RES_SRQ    = 3,
 370         MLX5_RES_XSRQ   = 4,
 371 };
 372
 373 struct mlx5_core_rsc_common {
 374         enum mlx5_res_type      res;
 375         atomic_t                refcount;
 376         struct completion       free;
 377 };
 378
 379 struct mlx5_core_srq {
 380         struct mlx5_core_rsc_common     common; /* must be first */
 381         u32             srqn;
 382         int             max;
 383         int             max_gs;
 384         int             max_avail_gather;
 385         int             wqe_shift;
 386         void (*event)   (struct mlx5_core_srq *, enum mlx5_event);
 387
 388         atomic_t                refcount;
 389         struct completion       free;
 390 };
 391
 392 struct mlx5_eq_table {
 393         void __iomem           *update_ci;
 394         void __iomem           *update_arm_ci;
 395         struct list_head        comp_eqs_list;
 396         struct mlx5_eq          pages_eq;
 397         struct mlx5_eq          async_eq;
 398         struct mlx5_eq          cmd_eq;
 399         int                     num_comp_vectors;
 400         /* protect EQs list
 401          */
 402         spinlock_t              lock;
 403 };
 404
 405 struct mlx5_uar {
 406         u32                     index;
 407         struct list_head        bf_list;
 408         unsigned                free_bf_bmap;
 409         void __iomem           *bf_map;
 410         void __iomem           *map;
 411 };
 412
 413
 414 struct mlx5_core_health {
 415         struct health_buffer __iomem   *health;
 416         __be32 __iomem                 *health_counter;
 417         struct timer_list               timer;
 418         u32                             prev;
 419         int                             miss_counter;
 420         bool                            sick;
 421         /* wq spinlock to synchronize draining */
 422         spinlock_t                      wq_lock;
 423         struct workqueue_struct        *wq;
 424         unsigned long                   flags;
 425         struct work_struct              work;
 426         struct delayed_work             recover_work;
 427 };
 428
 429 struct mlx5_cq_table {
 430         /* protect radix tree
 431          */
 432         spinlock_t              lock;
 433         struct radix_tree_root  tree;
 434 };
 435
 436 struct mlx5_qp_table {
 437         /* protect radix tree
 438          */
 439         spinlock_t              lock;
 440         struct radix_tree_root  tree;
 441 };
 442
 443 struct mlx5_srq_table {
 444         /* protect radix tree
 445          */
 446         spinlock_t              lock;
 447         struct radix_tree_root  tree;
 448 };
 449
 450 struct mlx5_mkey_table {
 451         /* protect radix tree
 452          */
 453         rwlock_t                lock;
 454         struct radix_tree_root  tree;
 455 };
 456
 457 struct mlx5_vf_context {
 458         int     enabled;
 459 };
 460
 461 struct mlx5_core_sriov {
 462         struct mlx5_vf_context  *vfs_ctx;
 463         int                     num_vfs;
 464         int                     enabled_vfs;
 465 };
 466
 467 struct mlx5_irq_info {
 468         cpumask_var_t mask;
 469         char name[MLX5_MAX_IRQ_NAME];
 470 };
 471
 472 struct mlx5_fc_stats {
 473         struct rb_root counters;
 474         struct list_head addlist;
 475         /* protect addlist add/splice operations */
 476         spinlock_t addlist_lock;
 477
 478         struct workqueue_struct *wq;
 479         struct delayed_work work;
 480         unsigned long next_query;
 481 };
 482
 483 struct mlx5_eswitch;
 484 struct mlx5_lag;
 485
 486 struct mlx5_rl_entry {
 487         u32                     rate;
 488         u16                     index;
 489         u16                     refcount;
 490 };
 491
 492 struct mlx5_rl_table {
 493         /* protect rate limit table */
 494         struct mutex            rl_lock;
 495         u16                     max_size;
 496         u32                     max_rate;
 497         u32                     min_rate;
 498         struct mlx5_rl_entry   *rl_entry;
 499 };
 500
 501 struct mlx5_priv {
 502         char                    name[MLX5_MAX_NAME_LEN];
 503         struct mlx5_eq_table    eq_table;
 504         struct msix_entry       *msix_arr;
 505         struct mlx5_irq_info    *irq_info;
 506         struct mlx5_uuar_info   uuari;
 507         MLX5_DECLARE_DOORBELL_LOCK(cq_uar_lock);
 508
 509         /* pages stuff */
 510         struct workqueue_struct *pg_wq;
 511         struct rb_root          page_root;
 512         int                     fw_pages;
 513         atomic_t                reg_pages;
 514         struct list_head        free_list;
 515         int                     vfs_pages;
 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: mkey staff */
 534         struct mlx5_mkey_table  mkey_table;
 535         /* end: mkey staff */
 536
 537         /* start: alloc staff */
 538         /* protect buffer alocation according to numa node */
 539         struct mutex            alloc_mutex;
 540         int                     numa_node;
 541
 542         struct mutex            pgdir_mutex;
 543         struct list_head        pgdir_list;
 544         /* end: alloc staff */
 545         struct dentry          *dbg_root;
 546
 547         /* protect mkey key part */
 548         spinlock_t              mkey_lock;
 549         u8                      mkey_key;
 550
 551         struct list_head        dev_list;
 552         struct list_head        ctx_list;
 553         spinlock_t              ctx_lock;
 554
 555         struct mlx5_flow_steering *steering;
 556         struct mlx5_eswitch     *eswitch;
 557         struct mlx5_core_sriov  sriov;
 558         struct mlx5_lag         *lag;
 559         unsigned long           pci_dev_data;
 560         struct mlx5_fc_stats            fc_stats;
 561         struct mlx5_rl_table            rl_table;
 562 };
 563
 564 enum mlx5_device_state {
 565         MLX5_DEVICE_STATE_UP,
 566         MLX5_DEVICE_STATE_INTERNAL_ERROR,
 567 };
 568
 569 enum mlx5_interface_state {
 570         MLX5_INTERFACE_STATE_DOWN = BIT(0),
 571         MLX5_INTERFACE_STATE_UP = BIT(1),
 572         MLX5_INTERFACE_STATE_SHUTDOWN = BIT(2),
 573 };
 574
 575 enum mlx5_pci_status {
 576         MLX5_PCI_STATUS_DISABLED,
 577         MLX5_PCI_STATUS_ENABLED,
 578 };
 579
 580 struct mlx5_td {
 581         struct list_head tirs_list;
 582         u32              tdn;
 583 };
 584
 585 struct mlx5e_resources {
 586         struct mlx5_uar            cq_uar;
 587         u32                        pdn;
 588         struct mlx5_td             td;
 589         struct mlx5_core_mkey      mkey;
 590 };
 591
 592 struct mlx5_core_dev {
 593         struct pci_dev         *pdev;
 594         /* sync pci state */
 595         struct mutex            pci_status_mutex;
 596         enum mlx5_pci_status    pci_status;
 597         u8                      rev_id;
 598         char                    board_id[MLX5_BOARD_ID_LEN];
 599         struct mlx5_cmd         cmd;
 600         struct mlx5_port_caps   port_caps[MLX5_MAX_PORTS];
 601         u32 hca_caps_cur[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
 602         u32 hca_caps_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
 603         phys_addr_t             iseg_base;
 604         struct mlx5_init_seg __iomem *iseg;
 605         enum mlx5_device_state  state;
 606         /* sync interface state */
 607         struct mutex            intf_state_mutex;
 608         unsigned long           intf_state;
 609         void                    (*event) (struct mlx5_core_dev *dev,
 610                                           enum mlx5_dev_event event,
 611                                           unsigned long param);
 612         struct mlx5_priv        priv;
 613         struct mlx5_profile     *profile;
 614         atomic_t                num_qps;
 615         u32                     issi;
 616         struct mlx5e_resources  mlx5e_res;
 617 #ifdef CONFIG_RFS_ACCEL
 618         struct cpu_rmap         *rmap;
 619 #endif
 620 };
 621
 622 struct mlx5_db {
 623         __be32                  *db;
 624         union {
 625                 struct mlx5_db_pgdir            *pgdir;
 626                 struct mlx5_ib_user_db_page     *user_page;
 627         }                       u;
 628         dma_addr_t              dma;
 629         int                     index;
 630 };
 631
 632 enum {
 633         MLX5_COMP_EQ_SIZE = 1024,
 634 };
 635
 636 enum {
 637         MLX5_PTYS_IB = 1 << 0,
 638         MLX5_PTYS_EN = 1 << 2,
 639 };
 640
 641 typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
 642
 643 struct mlx5_cmd_work_ent {
 644         struct mlx5_cmd_msg    *in;
 645         struct mlx5_cmd_msg    *out;
 646         void                   *uout;
 647         int                     uout_size;
 648         mlx5_cmd_cbk_t          callback;
 649         struct delayed_work     cb_timeout_work;
 650         void                   *context;
 651         int                     idx;
 652         struct completion       done;
 653         struct mlx5_cmd        *cmd;
 654         struct work_struct      work;
 655         struct mlx5_cmd_layout *lay;
 656         int                     ret;
 657         int                     page_queue;
 658         u8                      status;
 659         u8                      token;
 660         u64                     ts1;
 661         u64                     ts2;
 662         u16                     op;
 663 };
 664
 665 struct mlx5_pas {
 666         u64     pa;
 667         u8      log_sz;
 668 };
 669
 670 enum port_state_policy {
 671         MLX5_POLICY_DOWN        = 0,
 672         MLX5_POLICY_UP          = 1,
 673         MLX5_POLICY_FOLLOW      = 2,
 674         MLX5_POLICY_INVALID     = 0xffffffff
 675 };
 676
 677 enum phy_port_state {
 678         MLX5_AAA_111
 679 };
 680
 681 struct mlx5_hca_vport_context {
 682         u32                     field_select;
 683         bool                    sm_virt_aware;
 684         bool                    has_smi;
 685         bool                    has_raw;
 686         enum port_state_policy  policy;
 687         enum phy_port_state     phys_state;
 688         enum ib_port_state      vport_state;
 689         u8                      port_physical_state;
 690         u64                     sys_image_guid;
 691         u64                     port_guid;
 692         u64                     node_guid;
 693         u32                     cap_mask1;
 694         u32                     cap_mask1_perm;
 695         u32                     cap_mask2;
 696         u32                     cap_mask2_perm;
 697         u16                     lid;
 698         u8                      init_type_reply; /* bitmask: see ib spec 14.2.5.6 InitTypeReply */
 699         u8                      lmc;
 700         u8                      subnet_timeout;
 701         u16                     sm_lid;
 702         u8                      sm_sl;
 703         u16                     qkey_violation_counter;
 704         u16                     pkey_violation_counter;
 705         bool                    grh_required;
 706 };
 707
 708 static inline void *mlx5_buf_offset(struct mlx5_buf *buf, int offset)
 709 {
 710                 return buf->direct.buf + offset;
 711 }
 712
 713 extern struct workqueue_struct *mlx5_core_wq;
 714
 715 #define STRUCT_FIELD(header, field) \
 716         .struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field),      \
 717         .struct_size_bytes   = sizeof((struct ib_unpacked_ ## header *)0)->field
 718
 719 static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
 720 {
 721         return pci_get_drvdata(pdev);
 722 }
 723
 724 extern struct dentry *mlx5_debugfs_root;
 725
 726 static inline u16 fw_rev_maj(struct mlx5_core_dev *dev)
 727 {
 728         return ioread32be(&dev->iseg->fw_rev) & 0xffff;
 729 }
 730
 731 static inline u16 fw_rev_min(struct mlx5_core_dev *dev)
 732 {
 733         return ioread32be(&dev->iseg->fw_rev) >> 16;
 734 }
 735
 736 static inline u16 fw_rev_sub(struct mlx5_core_dev *dev)
 737 {
 738         return ioread32be(&dev->iseg->cmdif_rev_fw_sub) & 0xffff;
 739 }
 740
 741 static inline u16 cmdif_rev(struct mlx5_core_dev *dev)
 742 {
 743         return ioread32be(&dev->iseg->cmdif_rev_fw_sub) >> 16;
 744 }
 745
 746 static inline void *mlx5_vzalloc(unsigned long size)
 747 {
 748         void *rtn;
 749
 750         rtn = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
 751         if (!rtn)
 752                 rtn = vzalloc(size);
 753         return rtn;
 754 }
 755
 756 static inline u32 mlx5_base_mkey(const u32 key)
 757 {
 758         return key & 0xffffff00u;
 759 }
 760
 761 int mlx5_cmd_init(struct mlx5_core_dev *dev);
 762 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
 763 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
 764 void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
 765
 766 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
 767                   int out_size);
 768 int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
 769                      void *out, int out_size, mlx5_cmd_cbk_t callback,
 770                      void *context);
 771 void mlx5_cmd_mbox_status(void *out, u8 *status, u32 *syndrome);
 772
 773 int mlx5_core_get_caps(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type);
 774 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
 775 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
 776 int mlx5_alloc_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari);
 777 int mlx5_free_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari);
 778 int mlx5_alloc_map_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar,
 779                        bool map_wc);
 780 void mlx5_unmap_free_uar(struct mlx5_core_dev *mdev, struct mlx5_uar *uar);
 781 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
 782 int mlx5_health_init(struct mlx5_core_dev *dev);
 783 void mlx5_start_health_poll(struct mlx5_core_dev *dev);
 784 void mlx5_stop_health_poll(struct mlx5_core_dev *dev);
 785 void mlx5_drain_health_wq(struct mlx5_core_dev *dev);
 786 int mlx5_buf_alloc_node(struct mlx5_core_dev *dev, int size,
 787                         struct mlx5_buf *buf, int node);
 788 int mlx5_buf_alloc(struct mlx5_core_dev *dev, int size, struct mlx5_buf *buf);
 789 void mlx5_buf_free(struct mlx5_core_dev *dev, struct mlx5_buf *buf);
 790 struct mlx5_cmd_mailbox *mlx5_alloc_cmd_mailbox_chain(struct mlx5_core_dev *dev,
 791                                                       gfp_t flags, int npages);
 792 void mlx5_free_cmd_mailbox_chain(struct mlx5_core_dev *dev,
 793                                  struct mlx5_cmd_mailbox *head);
 794 int mlx5_core_create_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 795                          struct mlx5_srq_attr *in);
 796 int mlx5_core_destroy_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq);
 797 int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 798                         struct mlx5_srq_attr *out);
 799 int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 800                       u16 lwm, int is_srq);
 801 void mlx5_init_mkey_table(struct mlx5_core_dev *dev);
 802 void mlx5_cleanup_mkey_table(struct mlx5_core_dev *dev);
 803 int mlx5_core_create_mkey_cb(struct mlx5_core_dev *dev,
 804                              struct mlx5_core_mkey *mkey,
 805                              u32 *in, int inlen,
 806                              u32 *out, int outlen,
 807                              mlx5_cmd_cbk_t callback, void *context);
 808 int mlx5_core_create_mkey(struct mlx5_core_dev *dev,
 809                           struct mlx5_core_mkey *mkey,
 810                           u32 *in, int inlen);
 811 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev,
 812                            struct mlx5_core_mkey *mkey);
 813 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *mkey,
 814                          u32 *out, int outlen);
 815 int mlx5_core_dump_fill_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mkey *_mkey,
 816                              u32 *mkey);
 817 int mlx5_core_alloc_pd(struct mlx5_core_dev *dev, u32 *pdn);
 818 int mlx5_core_dealloc_pd(struct mlx5_core_dev *dev, u32 pdn);
 819 int mlx5_core_mad_ifc(struct mlx5_core_dev *dev, const void *inb, void *outb,
 820                       u16 opmod, u8 port);
 821 void mlx5_pagealloc_init(struct mlx5_core_dev *dev);
 822 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev);
 823 int mlx5_pagealloc_start(struct mlx5_core_dev *dev);
 824 void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
 825 void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
 826                                  s32 npages);
 827 int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
 828 int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
 829 void mlx5_register_debugfs(void);
 830 void mlx5_unregister_debugfs(void);
 831 int mlx5_eq_init(struct mlx5_core_dev *dev);
 832 void mlx5_eq_cleanup(struct mlx5_core_dev *dev);
 833 void mlx5_fill_page_array(struct mlx5_buf *buf, __be64 *pas);
 834 void mlx5_cq_completion(struct mlx5_core_dev *dev, u32 cqn);
 835 void mlx5_rsc_event(struct mlx5_core_dev *dev, u32 rsn, int event_type);
 836 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
 837 void mlx5_eq_pagefault(struct mlx5_core_dev *dev, struct mlx5_eqe *eqe);
 838 #endif
 839 void mlx5_srq_event(struct mlx5_core_dev *dev, u32 srqn, int event_type);
 840 struct mlx5_core_srq *mlx5_core_get_srq(struct mlx5_core_dev *dev, u32 srqn);
 841 void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, u64 vec);
 842 void mlx5_cq_event(struct mlx5_core_dev *dev, u32 cqn, int event_type);
 843 int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
 844                        int nent, u64 mask, const char *name, struct mlx5_uar *uar);
 845 int mlx5_destroy_unmap_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 846 int mlx5_start_eqs(struct mlx5_core_dev *dev);
 847 int mlx5_stop_eqs(struct mlx5_core_dev *dev);
 848 int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,
 849                     unsigned int *irqn);
 850 int mlx5_core_attach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
 851 int mlx5_core_detach_mcg(struct mlx5_core_dev *dev, union ib_gid *mgid, u32 qpn);
 852
 853 int mlx5_qp_debugfs_init(struct mlx5_core_dev *dev);
 854 void mlx5_qp_debugfs_cleanup(struct mlx5_core_dev *dev);
 855 int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
 856                          int size_in, void *data_out, int size_out,
 857                          u16 reg_num, int arg, int write);
 858
 859 int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 860 void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq);
 861 int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq,
 862                        u32 *out, int outlen);
 863 int mlx5_eq_debugfs_init(struct mlx5_core_dev *dev);
 864 void mlx5_eq_debugfs_cleanup(struct mlx5_core_dev *dev);
 865 int mlx5_cq_debugfs_init(struct mlx5_core_dev *dev);
 866 void mlx5_cq_debugfs_cleanup(struct mlx5_core_dev *dev);
 867 int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
 868 int mlx5_db_alloc_node(struct mlx5_core_dev *dev, struct mlx5_db *db,
 869                        int node);
 870 void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
 871
 872 const char *mlx5_command_str(int command);
 873 int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
 874 void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
 875 int mlx5_core_create_psv(struct mlx5_core_dev *dev, u32 pdn,
 876                          int npsvs, u32 *sig_index);
 877 int mlx5_core_destroy_psv(struct mlx5_core_dev *dev, int psv_num);
 878 void mlx5_core_put_rsc(struct mlx5_core_rsc_common *common);
 879 int mlx5_query_odp_caps(struct mlx5_core_dev *dev,
 880                         struct mlx5_odp_caps *odp_caps);
 881 int mlx5_core_query_ib_ppcnt(struct mlx5_core_dev *dev,
 882                              u8 port_num, void *out, size_t sz);
 883
 884 int mlx5_init_rl_table(struct mlx5_core_dev *dev);
 885 void mlx5_cleanup_rl_table(struct mlx5_core_dev *dev);
 886 int mlx5_rl_add_rate(struct mlx5_core_dev *dev, u32 rate, u16 *index);
 887 void mlx5_rl_remove_rate(struct mlx5_core_dev *dev, u32 rate);
 888 bool mlx5_rl_is_in_range(struct mlx5_core_dev *dev, u32 rate);
 889
 890 static inline int fw_initializing(struct mlx5_core_dev *dev)
 891 {
 892         return ioread32be(&dev->iseg->initializing) >> 31;
 893 }
 894
 895 static inline u32 mlx5_mkey_to_idx(u32 mkey)
 896 {
 897         return mkey >> 8;
 898 }
 899
 900 static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
 901 {
 902         return mkey_idx << 8;
 903 }
 904
 905 static inline u8 mlx5_mkey_variant(u32 mkey)
 906 {
 907         return mkey & 0xff;
 908 }
 909
 910 enum {
 911         MLX5_PROF_MASK_QP_SIZE          = (u64)1 << 0,
 912         MLX5_PROF_MASK_MR_CACHE         = (u64)1 << 1,
 913 };
 914
 915 enum {
 916         MAX_MR_CACHE_ENTRIES    = 16,
 917 };
 918
 919 enum {
 920         MLX5_INTERFACE_PROTOCOL_IB  = 0,
 921         MLX5_INTERFACE_PROTOCOL_ETH = 1,
 922 };
 923
 924 struct mlx5_interface {
 925         void *                  (*add)(struct mlx5_core_dev *dev);
 926         void                    (*remove)(struct mlx5_core_dev *dev, void *context);
 927         int                     (*attach)(struct mlx5_core_dev *dev, void *context);
 928         void                    (*detach)(struct mlx5_core_dev *dev, void *context);
 929         void                    (*event)(struct mlx5_core_dev *dev, void *context,
 930                                          enum mlx5_dev_event event, unsigned long param);
 931         void *                  (*get_dev)(void *context);
 932         int                     protocol;
 933         struct list_head        list;
 934 };
 935
 936 void *mlx5_get_protocol_dev(struct mlx5_core_dev *mdev, int protocol);
 937 int mlx5_register_interface(struct mlx5_interface *intf);
 938 void mlx5_unregister_interface(struct mlx5_interface *intf);
 939 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
 940
 941 int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
 942 int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
 943 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
 944 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
 945
 946 struct mlx5_profile {
 947         u64     mask;
 948         u8      log_max_qp;
 949         struct {
 950                 int     size;
 951                 int     limit;
 952         } mr_cache[MAX_MR_CACHE_ENTRIES];
 953 };
 954
 955 enum {
 956         MLX5_PCI_DEV_IS_VF              = 1 << 0,
 957 };
 958
 959 static inline int mlx5_core_is_pf(struct mlx5_core_dev *dev)
 960 {
 961         return !(dev->priv.pci_dev_data & MLX5_PCI_DEV_IS_VF);
 962 }
 963
 964 static inline int mlx5_get_gid_table_len(u16 param)
 965 {
 966         if (param > 4) {
 967                 pr_warn("gid table length is zero\n");
 968                 return 0;
 969         }
 970
 971         return 8 * (1 << param);
 972 }
 973
 974 static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
 975 {
 976         return !!(dev->priv.rl_table.max_size);
 977 }
 978
 979 enum {
 980         MLX5_TRIGGERED_CMD_COMP = (u64)1 << 32,
 981 };
 982
 983 #endif /* MLX5_DRIVER_H */