include/linux/mlx5/qp.h

   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_QP_H
  34 #define MLX5_QP_H
  35
  36 #include <linux/mlx5/device.h>
  37 #include <linux/mlx5/driver.h>
  38
  39 #define MLX5_INVALID_LKEY       0x100
  40 #define MLX5_SIG_WQE_SIZE       (MLX5_SEND_WQE_BB * 5)
  41 #define MLX5_DIF_SIZE           8
  42 #define MLX5_STRIDE_BLOCK_OP    0x400
  43
  44 enum mlx5_qp_optpar {
  45         MLX5_QP_OPTPAR_ALT_ADDR_PATH            = 1 << 0,
  46         MLX5_QP_OPTPAR_RRE                      = 1 << 1,
  47         MLX5_QP_OPTPAR_RAE                      = 1 << 2,
  48         MLX5_QP_OPTPAR_RWE                      = 1 << 3,
  49         MLX5_QP_OPTPAR_PKEY_INDEX               = 1 << 4,
  50         MLX5_QP_OPTPAR_Q_KEY                    = 1 << 5,
  51         MLX5_QP_OPTPAR_RNR_TIMEOUT              = 1 << 6,
  52         MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH        = 1 << 7,
  53         MLX5_QP_OPTPAR_SRA_MAX                  = 1 << 8,
  54         MLX5_QP_OPTPAR_RRA_MAX                  = 1 << 9,
  55         MLX5_QP_OPTPAR_PM_STATE                 = 1 << 10,
  56         MLX5_QP_OPTPAR_RETRY_COUNT              = 1 << 12,
  57         MLX5_QP_OPTPAR_RNR_RETRY                = 1 << 13,
  58         MLX5_QP_OPTPAR_ACK_TIMEOUT              = 1 << 14,
  59         MLX5_QP_OPTPAR_PRI_PORT                 = 1 << 16,
  60         MLX5_QP_OPTPAR_SRQN                     = 1 << 18,
  61         MLX5_QP_OPTPAR_CQN_RCV                  = 1 << 19,
  62         MLX5_QP_OPTPAR_DC_HS                    = 1 << 20,
  63         MLX5_QP_OPTPAR_DC_KEY                   = 1 << 21,
  64 };
  65
  66 enum mlx5_qp_state {
  67         MLX5_QP_STATE_RST                       = 0,
  68         MLX5_QP_STATE_INIT                      = 1,
  69         MLX5_QP_STATE_RTR                       = 2,
  70         MLX5_QP_STATE_RTS                       = 3,
  71         MLX5_QP_STATE_SQER                      = 4,
  72         MLX5_QP_STATE_SQD                       = 5,
  73         MLX5_QP_STATE_ERR                       = 6,
  74         MLX5_QP_STATE_SQ_DRAINING               = 7,
  75         MLX5_QP_STATE_SUSPENDED                 = 9,
  76         MLX5_QP_NUM_STATE
  77 };
  78
  79 enum {
  80         MLX5_QP_ST_RC                           = 0x0,
  81         MLX5_QP_ST_UC                           = 0x1,
  82         MLX5_QP_ST_UD                           = 0x2,
  83         MLX5_QP_ST_XRC                          = 0x3,
  84         MLX5_QP_ST_MLX                          = 0x4,
  85         MLX5_QP_ST_DCI                          = 0x5,
  86         MLX5_QP_ST_DCT                          = 0x6,
  87         MLX5_QP_ST_QP0                          = 0x7,
  88         MLX5_QP_ST_QP1                          = 0x8,
  89         MLX5_QP_ST_RAW_ETHERTYPE                = 0x9,
  90         MLX5_QP_ST_RAW_IPV6                     = 0xa,
  91         MLX5_QP_ST_SNIFFER                      = 0xb,
  92         MLX5_QP_ST_SYNC_UMR                     = 0xe,
  93         MLX5_QP_ST_PTP_1588                     = 0xd,
  94         MLX5_QP_ST_REG_UMR                      = 0xc,
  95         MLX5_QP_ST_MAX
  96 };
  97
  98 enum {
  99         MLX5_QP_PM_MIGRATED                     = 0x3,
 100         MLX5_QP_PM_ARMED                        = 0x0,
 101         MLX5_QP_PM_REARM                        = 0x1
 102 };
 103
 104 enum {
 105         MLX5_NON_ZERO_RQ        = 0 << 24,
 106         MLX5_SRQ_RQ             = 1 << 24,
 107         MLX5_CRQ_RQ             = 2 << 24,
 108         MLX5_ZERO_LEN_RQ        = 3 << 24
 109 };
 110
 111 enum {
 112         /* params1 */
 113         MLX5_QP_BIT_SRE                         = 1 << 15,
 114         MLX5_QP_BIT_SWE                         = 1 << 14,
 115         MLX5_QP_BIT_SAE                         = 1 << 13,
 116         /* params2 */
 117         MLX5_QP_BIT_RRE                         = 1 << 15,
 118         MLX5_QP_BIT_RWE                         = 1 << 14,
 119         MLX5_QP_BIT_RAE                         = 1 << 13,
 120         MLX5_QP_BIT_RIC                         = 1 <<  4,
 121 };
 122
 123 enum {
 124         MLX5_WQE_CTRL_CQ_UPDATE         = 2 << 2,
 125         MLX5_WQE_CTRL_SOLICITED         = 1 << 1,
 126 };
 127
 128 enum {
 129         MLX5_SEND_WQE_BB        = 64,
 130 };
 131
 132 enum {
 133         MLX5_WQE_FMR_PERM_LOCAL_READ    = 1 << 27,
 134         MLX5_WQE_FMR_PERM_LOCAL_WRITE   = 1 << 28,
 135         MLX5_WQE_FMR_PERM_REMOTE_READ   = 1 << 29,
 136         MLX5_WQE_FMR_PERM_REMOTE_WRITE  = 1 << 30,
 137         MLX5_WQE_FMR_PERM_ATOMIC        = 1 << 31
 138 };
 139
 140 enum {
 141         MLX5_FENCE_MODE_NONE                    = 0 << 5,
 142         MLX5_FENCE_MODE_INITIATOR_SMALL         = 1 << 5,
 143         MLX5_FENCE_MODE_FENCE                   = 2 << 5,
 144         MLX5_FENCE_MODE_STRONG_ORDERING         = 3 << 5,
 145         MLX5_FENCE_MODE_SMALL_AND_FENCE         = 4 << 5,
 146 };
 147
 148 enum {
 149         MLX5_QP_LAT_SENSITIVE   = 1 << 28,
 150         MLX5_QP_BLOCK_MCAST     = 1 << 30,
 151         MLX5_QP_ENABLE_SIG      = 1 << 31,
 152 };
 153
 154 enum {
 155         MLX5_RCV_DBR    = 0,
 156         MLX5_SND_DBR    = 1,
 157 };
 158
 159 enum {
 160         MLX5_FLAGS_INLINE       = 1<<7,
 161         MLX5_FLAGS_CHECK_FREE   = 1<<5,
 162 };
 163
 164 struct mlx5_wqe_fmr_seg {
 165         __be32                  flags;
 166         __be32                  mem_key;
 167         __be64                  buf_list;
 168         __be64                  start_addr;
 169         __be64                  reg_len;
 170         __be32                  offset;
 171         __be32                  page_size;
 172         u32                     reserved[2];
 173 };
 174
 175 struct mlx5_wqe_ctrl_seg {
 176         __be32                  opmod_idx_opcode;
 177         __be32                  qpn_ds;
 178         u8                      signature;
 179         u8                      rsvd[2];
 180         u8                      fm_ce_se;
 181         __be32                  imm;
 182 };
 183
 184 struct mlx5_wqe_xrc_seg {
 185         __be32                  xrc_srqn;
 186         u8                      rsvd[12];
 187 };
 188
 189 struct mlx5_wqe_masked_atomic_seg {
 190         __be64                  swap_add;
 191         __be64                  compare;
 192         __be64                  swap_add_mask;
 193         __be64                  compare_mask;
 194 };
 195
 196 struct mlx5_av {
 197         union {
 198                 struct {
 199                         __be32  qkey;
 200                         __be32  reserved;
 201                 } qkey;
 202                 __be64  dc_key;
 203         } key;
 204         __be32  dqp_dct;
 205         u8      stat_rate_sl;
 206         u8      fl_mlid;
 207         __be16  rlid;
 208         u8      reserved0[10];
 209         u8      tclass;
 210         u8      hop_limit;
 211         __be32  grh_gid_fl;
 212         u8      rgid[16];
 213 };
 214
 215 struct mlx5_wqe_datagram_seg {
 216         struct mlx5_av  av;
 217 };
 218
 219 struct mlx5_wqe_raddr_seg {
 220         __be64                  raddr;
 221         __be32                  rkey;
 222         u32                     reserved;
 223 };
 224
 225 struct mlx5_wqe_atomic_seg {
 226         __be64                  swap_add;
 227         __be64                  compare;
 228 };
 229
 230 struct mlx5_wqe_data_seg {
 231         __be32                  byte_count;
 232         __be32                  lkey;
 233         __be64                  addr;
 234 };
 235
 236 struct mlx5_wqe_umr_ctrl_seg {
 237         u8              flags;
 238         u8              rsvd0[3];
 239         __be16          klm_octowords;
 240         __be16          bsf_octowords;
 241         __be64          mkey_mask;
 242         u8              rsvd1[32];
 243 };
 244
 245 struct mlx5_seg_set_psv {
 246         __be32          psv_num;
 247         __be16          syndrome;
 248         __be16          status;
 249         __be32          transient_sig;
 250         __be32          ref_tag;
 251 };
 252
 253 struct mlx5_seg_get_psv {
 254         u8              rsvd[19];
 255         u8              num_psv;
 256         __be32          l_key;
 257         __be64          va;
 258         __be32          psv_index[4];
 259 };
 260
 261 struct mlx5_seg_check_psv {
 262         u8              rsvd0[2];
 263         __be16          err_coalescing_op;
 264         u8              rsvd1[2];
 265         __be16          xport_err_op;
 266         u8              rsvd2[2];
 267         __be16          xport_err_mask;
 268         u8              rsvd3[7];
 269         u8              num_psv;
 270         __be32          l_key;
 271         __be64          va;
 272         __be32          psv_index[4];
 273 };
 274
 275 struct mlx5_rwqe_sig {
 276         u8      rsvd0[4];
 277         u8      signature;
 278         u8      rsvd1[11];
 279 };
 280
 281 struct mlx5_wqe_signature_seg {
 282         u8      rsvd0[4];
 283         u8      signature;
 284         u8      rsvd1[11];
 285 };
 286
 287 struct mlx5_wqe_inline_seg {
 288         __be32  byte_count;
 289 };
 290
 291 struct mlx5_bsf {
 292         struct mlx5_bsf_basic {
 293                 u8              bsf_size_sbs;
 294                 u8              check_byte_mask;
 295                 union {
 296                         u8      copy_byte_mask;
 297                         u8      bs_selector;
 298                         u8      rsvd_wflags;
 299                 } wire;
 300                 union {
 301                         u8      bs_selector;
 302                         u8      rsvd_mflags;
 303                 } mem;
 304                 __be32          raw_data_size;
 305                 __be32          w_bfs_psv;
 306                 __be32          m_bfs_psv;
 307         } basic;
 308         struct mlx5_bsf_ext {
 309                 __be32          t_init_gen_pro_size;
 310                 __be32          rsvd_epi_size;
 311                 __be32          w_tfs_psv;
 312                 __be32          m_tfs_psv;
 313         } ext;
 314         struct mlx5_bsf_inl {
 315                 __be32          w_inl_vld;
 316                 __be32          w_rsvd;
 317                 __be64          w_block_format;
 318                 __be32          m_inl_vld;
 319                 __be32          m_rsvd;
 320                 __be64          m_block_format;
 321         } inl;
 322 };
 323
 324 struct mlx5_klm {
 325         __be32          bcount;
 326         __be32          key;
 327         __be64          va;
 328 };
 329
 330 struct mlx5_stride_block_entry {
 331         __be16          stride;
 332         __be16          bcount;
 333         __be32          key;
 334         __be64          va;
 335 };
 336
 337 struct mlx5_stride_block_ctrl_seg {
 338         __be32          bcount_per_cycle;
 339         __be32          op;
 340         __be32          repeat_count;
 341         u16             rsvd;
 342         __be16          num_entries;
 343 };
 344
 345 struct mlx5_core_qp {
 346         void (*event)           (struct mlx5_core_qp *, int);
 347         int                     qpn;
 348         atomic_t                refcount;
 349         struct completion       free;
 350         struct mlx5_rsc_debug   *dbg;
 351         int                     pid;
 352 };
 353
 354 struct mlx5_qp_path {
 355         u8                      fl;
 356         u8                      rsvd3;
 357         u8                      free_ar;
 358         u8                      pkey_index;
 359         u8                      rsvd0;
 360         u8                      grh_mlid;
 361         __be16                  rlid;
 362         u8                      ackto_lt;
 363         u8                      mgid_index;
 364         u8                      static_rate;
 365         u8                      hop_limit;
 366         __be32                  tclass_flowlabel;
 367         u8                      rgid[16];
 368         u8                      rsvd1[4];
 369         u8                      sl;
 370         u8                      port;
 371         u8                      rsvd2[6];
 372 };
 373
 374 struct mlx5_qp_context {
 375         __be32                  flags;
 376         __be32                  flags_pd;
 377         u8                      mtu_msgmax;
 378         u8                      rq_size_stride;
 379         __be16                  sq_crq_size;
 380         __be32                  qp_counter_set_usr_page;
 381         __be32                  wire_qpn;
 382         __be32                  log_pg_sz_remote_qpn;
 383         struct                  mlx5_qp_path pri_path;
 384         struct                  mlx5_qp_path alt_path;
 385         __be32                  params1;
 386         u8                      reserved2[4];
 387         __be32                  next_send_psn;
 388         __be32                  cqn_send;
 389         u8                      reserved3[8];
 390         __be32                  last_acked_psn;
 391         __be32                  ssn;
 392         __be32                  params2;
 393         __be32                  rnr_nextrecvpsn;
 394         __be32                  xrcd;
 395         __be32                  cqn_recv;
 396         __be64                  db_rec_addr;
 397         __be32                  qkey;
 398         __be32                  rq_type_srqn;
 399         __be32                  rmsn;
 400         __be16                  hw_sq_wqe_counter;
 401         __be16                  sw_sq_wqe_counter;
 402         __be16                  hw_rcyclic_byte_counter;
 403         __be16                  hw_rq_counter;
 404         __be16                  sw_rcyclic_byte_counter;
 405         __be16                  sw_rq_counter;
 406         u8                      rsvd0[5];
 407         u8                      cgs;
 408         u8                      cs_req;
 409         u8                      cs_res;
 410         __be64                  dc_access_key;
 411         u8                      rsvd1[24];
 412 };
 413
 414 struct mlx5_create_qp_mbox_in {
 415         struct mlx5_inbox_hdr   hdr;
 416         __be32                  input_qpn;
 417         u8                      rsvd0[4];
 418         __be32                  opt_param_mask;
 419         u8                      rsvd1[4];
 420         struct mlx5_qp_context  ctx;
 421         u8                      rsvd3[16];
 422         __be64                  pas[0];
 423 };
 424
 425 struct mlx5_create_qp_mbox_out {
 426         struct mlx5_outbox_hdr  hdr;
 427         __be32                  qpn;
 428         u8                      rsvd0[4];
 429 };
 430
 431 struct mlx5_destroy_qp_mbox_in {
 432         struct mlx5_inbox_hdr   hdr;
 433         __be32                  qpn;
 434         u8                      rsvd0[4];
 435 };
 436
 437 struct mlx5_destroy_qp_mbox_out {
 438         struct mlx5_outbox_hdr  hdr;
 439         u8                      rsvd0[8];
 440 };
 441
 442 struct mlx5_modify_qp_mbox_in {
 443         struct mlx5_inbox_hdr   hdr;
 444         __be32                  qpn;
 445         u8                      rsvd0[4];
 446         __be32                  optparam;
 447         u8                      rsvd1[4];
 448         struct mlx5_qp_context  ctx;
 449         u8                      rsvd2[16];
 450 };
 451
 452 struct mlx5_modify_qp_mbox_out {
 453         struct mlx5_outbox_hdr  hdr;
 454         u8                      rsvd0[8];
 455 };
 456
 457 struct mlx5_query_qp_mbox_in {
 458         struct mlx5_inbox_hdr   hdr;
 459         __be32                  qpn;
 460         u8                      rsvd[4];
 461 };
 462
 463 struct mlx5_query_qp_mbox_out {
 464         struct mlx5_outbox_hdr  hdr;
 465         u8                      rsvd1[8];
 466         __be32                  optparam;
 467         u8                      rsvd0[4];
 468         struct mlx5_qp_context  ctx;
 469         u8                      rsvd2[16];
 470         __be64                  pas[0];
 471 };
 472
 473 struct mlx5_conf_sqp_mbox_in {
 474         struct mlx5_inbox_hdr   hdr;
 475         __be32                  qpn;
 476         u8                      rsvd[3];
 477         u8                      type;
 478 };
 479
 480 struct mlx5_conf_sqp_mbox_out {
 481         struct mlx5_outbox_hdr  hdr;
 482         u8                      rsvd[8];
 483 };
 484
 485 struct mlx5_alloc_xrcd_mbox_in {
 486         struct mlx5_inbox_hdr   hdr;
 487         u8                      rsvd[8];
 488 };
 489
 490 struct mlx5_alloc_xrcd_mbox_out {
 491         struct mlx5_outbox_hdr  hdr;
 492         __be32                  xrcdn;
 493         u8                      rsvd[4];
 494 };
 495
 496 struct mlx5_dealloc_xrcd_mbox_in {
 497         struct mlx5_inbox_hdr   hdr;
 498         __be32                  xrcdn;
 499         u8                      rsvd[4];
 500 };
 501
 502 struct mlx5_dealloc_xrcd_mbox_out {
 503         struct mlx5_outbox_hdr  hdr;
 504         u8                      rsvd[8];
 505 };
 506
 507 static inline struct mlx5_core_qp *__mlx5_qp_lookup(struct mlx5_core_dev *dev, u32 qpn)
 508 {
 509         return radix_tree_lookup(&dev->priv.qp_table.tree, qpn);
 510 }
 511
 512 static inline struct mlx5_core_mr *__mlx5_mr_lookup(struct mlx5_core_dev *dev, u32 key)
 513 {
 514         return radix_tree_lookup(&dev->priv.mr_table.tree, key);
 515 }
 516
 517 int mlx5_core_create_qp(struct mlx5_core_dev *dev,
 518                         struct mlx5_core_qp *qp,
 519                         struct mlx5_create_qp_mbox_in *in,
 520                         int inlen);
 521 int mlx5_core_qp_modify(struct mlx5_core_dev *dev, enum mlx5_qp_state cur_state,
 522                         enum mlx5_qp_state new_state,
 523                         struct mlx5_modify_qp_mbox_in *in, int sqd_event,
 524                         struct mlx5_core_qp *qp);
 525 int mlx5_core_destroy_qp(struct mlx5_core_dev *dev,
 526                          struct mlx5_core_qp *qp);
 527 int mlx5_core_qp_query(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp,
 528                        struct mlx5_query_qp_mbox_out *out, int outlen);
 529
 530 int mlx5_core_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn);
 531 int mlx5_core_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn);
 532 void mlx5_init_qp_table(struct mlx5_core_dev *dev);
 533 void mlx5_cleanup_qp_table(struct mlx5_core_dev *dev);
 534 int mlx5_debug_qp_add(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp);
 535 void mlx5_debug_qp_remove(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp);
 536
 537 static inline const char *mlx5_qp_type_str(int type)
 538 {
 539         switch (type) {
 540         case MLX5_QP_ST_RC: return "RC";
 541         case MLX5_QP_ST_UC: return "C";
 542         case MLX5_QP_ST_UD: return "UD";
 543         case MLX5_QP_ST_XRC: return "XRC";
 544         case MLX5_QP_ST_MLX: return "MLX";
 545         case MLX5_QP_ST_QP0: return "QP0";
 546         case MLX5_QP_ST_QP1: return "QP1";
 547         case MLX5_QP_ST_RAW_ETHERTYPE: return "RAW_ETHERTYPE";
 548         case MLX5_QP_ST_RAW_IPV6: return "RAW_IPV6";
 549         case MLX5_QP_ST_SNIFFER: return "SNIFFER";
 550         case MLX5_QP_ST_SYNC_UMR: return "SYNC_UMR";
 551         case MLX5_QP_ST_PTP_1588: return "PTP_1588";
 552         case MLX5_QP_ST_REG_UMR: return "REG_UMR";
 553         default: return "Invalid transport type";
 554         }
 555 }
 556
 557 static inline const char *mlx5_qp_state_str(int state)
 558 {
 559         switch (state) {
 560         case MLX5_QP_STATE_RST:
 561         return "RST";
 562         case MLX5_QP_STATE_INIT:
 563         return "INIT";
 564         case MLX5_QP_STATE_RTR:
 565         return "RTR";
 566         case MLX5_QP_STATE_RTS:
 567         return "RTS";
 568         case MLX5_QP_STATE_SQER:
 569         return "SQER";
 570         case MLX5_QP_STATE_SQD:
 571         return "SQD";
 572         case MLX5_QP_STATE_ERR:
 573         return "ERR";
 574         case MLX5_QP_STATE_SQ_DRAINING:
 575         return "SQ_DRAINING";
 576         case MLX5_QP_STATE_SUSPENDED:
 577         return "SUSPENDED";
 578         default: return "Invalid QP state";
 579         }
 580 }
 581
 582 #endif /* MLX5_QP_H */