include/linux/mlx5/qp.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_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 #define MLX5_CPY_GRD_MASK       0xc0
  44 #define MLX5_CPY_APP_MASK       0x30
  45 #define MLX5_CPY_REF_MASK       0x0f
  46 #define MLX5_BSF_INC_REFTAG     (1 << 6)
  47 #define MLX5_BSF_INL_VALID      (1 << 15)
  48 #define MLX5_BSF_REFRESH_DIF    (1 << 14)
  49 #define MLX5_BSF_REPEAT_BLOCK   (1 << 7)
  50 #define MLX5_BSF_APPTAG_ESCAPE  0x1
  51 #define MLX5_BSF_APPREF_ESCAPE  0x2
  52
  53 enum mlx5_qp_optpar {
  54         MLX5_QP_OPTPAR_ALT_ADDR_PATH            = 1 << 0,
  55         MLX5_QP_OPTPAR_RRE                      = 1 << 1,
  56         MLX5_QP_OPTPAR_RAE                      = 1 << 2,
  57         MLX5_QP_OPTPAR_RWE                      = 1 << 3,
  58         MLX5_QP_OPTPAR_PKEY_INDEX               = 1 << 4,
  59         MLX5_QP_OPTPAR_Q_KEY                    = 1 << 5,
  60         MLX5_QP_OPTPAR_RNR_TIMEOUT              = 1 << 6,
  61         MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH        = 1 << 7,
  62         MLX5_QP_OPTPAR_SRA_MAX                  = 1 << 8,
  63         MLX5_QP_OPTPAR_RRA_MAX                  = 1 << 9,
  64         MLX5_QP_OPTPAR_PM_STATE                 = 1 << 10,
  65         MLX5_QP_OPTPAR_RETRY_COUNT              = 1 << 12,
  66         MLX5_QP_OPTPAR_RNR_RETRY                = 1 << 13,
  67         MLX5_QP_OPTPAR_ACK_TIMEOUT              = 1 << 14,
  68         MLX5_QP_OPTPAR_PRI_PORT                 = 1 << 16,
  69         MLX5_QP_OPTPAR_SRQN                     = 1 << 18,
  70         MLX5_QP_OPTPAR_CQN_RCV                  = 1 << 19,
  71         MLX5_QP_OPTPAR_DC_HS                    = 1 << 20,
  72         MLX5_QP_OPTPAR_DC_KEY                   = 1 << 21,
  73 };
  74
  75 enum mlx5_qp_state {
  76         MLX5_QP_STATE_RST                       = 0,
  77         MLX5_QP_STATE_INIT                      = 1,
  78         MLX5_QP_STATE_RTR                       = 2,
  79         MLX5_QP_STATE_RTS                       = 3,
  80         MLX5_QP_STATE_SQER                      = 4,
  81         MLX5_QP_STATE_SQD                       = 5,
  82         MLX5_QP_STATE_ERR                       = 6,
  83         MLX5_QP_STATE_SQ_DRAINING               = 7,
  84         MLX5_QP_STATE_SUSPENDED                 = 9,
  85         MLX5_QP_NUM_STATE,
  86         MLX5_QP_STATE,
  87         MLX5_QP_STATE_BAD,
  88 };
  89
  90 enum {
  91         MLX5_SQ_STATE_NA        = MLX5_SQC_STATE_ERR + 1,
  92         MLX5_SQ_NUM_STATE       = MLX5_SQ_STATE_NA + 1,
  93         MLX5_RQ_STATE_NA        = MLX5_RQC_STATE_ERR + 1,
  94         MLX5_RQ_NUM_STATE       = MLX5_RQ_STATE_NA + 1,
  95 };
  96
  97 enum {
  98         MLX5_QP_ST_RC                           = 0x0,
  99         MLX5_QP_ST_UC                           = 0x1,
 100         MLX5_QP_ST_UD                           = 0x2,
 101         MLX5_QP_ST_XRC                          = 0x3,
 102         MLX5_QP_ST_MLX                          = 0x4,
 103         MLX5_QP_ST_DCI                          = 0x5,
 104         MLX5_QP_ST_DCT                          = 0x6,
 105         MLX5_QP_ST_QP0                          = 0x7,
 106         MLX5_QP_ST_QP1                          = 0x8,
 107         MLX5_QP_ST_RAW_ETHERTYPE                = 0x9,
 108         MLX5_QP_ST_RAW_IPV6                     = 0xa,
 109         MLX5_QP_ST_SNIFFER                      = 0xb,
 110         MLX5_QP_ST_SYNC_UMR                     = 0xe,
 111         MLX5_QP_ST_PTP_1588                     = 0xd,
 112         MLX5_QP_ST_REG_UMR                      = 0xc,
 113         MLX5_QP_ST_MAX
 114 };
 115
 116 enum {
 117         MLX5_QP_PM_MIGRATED                     = 0x3,
 118         MLX5_QP_PM_ARMED                        = 0x0,
 119         MLX5_QP_PM_REARM                        = 0x1
 120 };
 121
 122 enum {
 123         MLX5_NON_ZERO_RQ        = 0x0,
 124         MLX5_SRQ_RQ             = 0x1,
 125         MLX5_CRQ_RQ             = 0x2,
 126         MLX5_ZERO_LEN_RQ        = 0x3
 127 };
 128
 129 /* TODO REM */
 130 enum {
 131         /* params1 */
 132         MLX5_QP_BIT_SRE                         = 1 << 15,
 133         MLX5_QP_BIT_SWE                         = 1 << 14,
 134         MLX5_QP_BIT_SAE                         = 1 << 13,
 135         /* params2 */
 136         MLX5_QP_BIT_RRE                         = 1 << 15,
 137         MLX5_QP_BIT_RWE                         = 1 << 14,
 138         MLX5_QP_BIT_RAE                         = 1 << 13,
 139         MLX5_QP_BIT_RIC                         = 1 <<  4,
 140         MLX5_QP_BIT_CC_SLAVE_RECV               = 1 <<  2,
 141         MLX5_QP_BIT_CC_SLAVE_SEND               = 1 <<  1,
 142         MLX5_QP_BIT_CC_MASTER                   = 1 <<  0
 143 };
 144
 145 enum {
 146         MLX5_WQE_CTRL_CQ_UPDATE         = 2 << 2,
 147         MLX5_WQE_CTRL_CQ_UPDATE_AND_EQE = 3 << 2,
 148         MLX5_WQE_CTRL_SOLICITED         = 1 << 1,
 149 };
 150
 151 enum {
 152         MLX5_SEND_WQE_DS        = 16,
 153         MLX5_SEND_WQE_BB        = 64,
 154 };
 155
 156 #define MLX5_SEND_WQEBB_NUM_DS  (MLX5_SEND_WQE_BB / MLX5_SEND_WQE_DS)
 157
 158 enum {
 159         MLX5_SEND_WQE_MAX_WQEBBS        = 16,
 160 };
 161
 162 enum {
 163         MLX5_WQE_FMR_PERM_LOCAL_READ    = 1 << 27,
 164         MLX5_WQE_FMR_PERM_LOCAL_WRITE   = 1 << 28,
 165         MLX5_WQE_FMR_PERM_REMOTE_READ   = 1 << 29,
 166         MLX5_WQE_FMR_PERM_REMOTE_WRITE  = 1 << 30,
 167         MLX5_WQE_FMR_PERM_ATOMIC        = 1 << 31
 168 };
 169
 170 enum {
 171         MLX5_FENCE_MODE_NONE                    = 0 << 5,
 172         MLX5_FENCE_MODE_INITIATOR_SMALL         = 1 << 5,
 173         MLX5_FENCE_MODE_FENCE                   = 2 << 5,
 174         MLX5_FENCE_MODE_STRONG_ORDERING         = 3 << 5,
 175         MLX5_FENCE_MODE_SMALL_AND_FENCE         = 4 << 5,
 176 };
 177
 178 enum {
 179         MLX5_RCV_DBR    = 0,
 180         MLX5_SND_DBR    = 1,
 181 };
 182
 183 enum {
 184         MLX5_FLAGS_INLINE       = 1<<7,
 185         MLX5_FLAGS_CHECK_FREE   = 1<<5,
 186 };
 187
 188 struct mlx5_wqe_fmr_seg {
 189         __be32                  flags;
 190         __be32                  mem_key;
 191         __be64                  buf_list;
 192         __be64                  start_addr;
 193         __be64                  reg_len;
 194         __be32                  offset;
 195         __be32                  page_size;
 196         u32                     reserved[2];
 197 };
 198
 199 struct mlx5_wqe_ctrl_seg {
 200         __be32                  opmod_idx_opcode;
 201         __be32                  qpn_ds;
 202         u8                      signature;
 203         u8                      rsvd[2];
 204         u8                      fm_ce_se;
 205         __be32                  imm;
 206 };
 207
 208 #define MLX5_WQE_CTRL_DS_MASK 0x3f
 209 #define MLX5_WQE_CTRL_QPN_MASK 0xffffff00
 210 #define MLX5_WQE_CTRL_QPN_SHIFT 8
 211 #define MLX5_WQE_DS_UNITS 16
 212 #define MLX5_WQE_CTRL_OPCODE_MASK 0xff
 213 #define MLX5_WQE_CTRL_WQE_INDEX_MASK 0x00ffff00
 214 #define MLX5_WQE_CTRL_WQE_INDEX_SHIFT 8
 215 #define MLX5_WQE_AV_EXT 0x80000000
 216
 217 enum {
 218         MLX5_ETH_WQE_L3_INNER_CSUM      = 1 << 4,
 219         MLX5_ETH_WQE_L4_INNER_CSUM      = 1 << 5,
 220         MLX5_ETH_WQE_L3_CSUM            = 1 << 6,
 221         MLX5_ETH_WQE_L4_CSUM            = 1 << 7,
 222 };
 223
 224 struct mlx5_wqe_eth_seg {
 225         u8              rsvd0[4];
 226         u8              cs_flags;
 227         u8              rsvd1;
 228         __be16          mss;
 229         __be32          rsvd2;
 230         __be16          inline_hdr_sz;
 231         u8              inline_hdr_start[2];
 232 };
 233
 234 struct mlx5_wqe_xrc_seg {
 235         __be32                  xrc_srqn;
 236         u8                      rsvd[12];
 237 };
 238
 239 struct mlx5_wqe_masked_atomic_seg {
 240         __be64                  swap_add;
 241         __be64                  compare;
 242         __be64                  swap_add_mask;
 243         __be64                  compare_mask;
 244 };
 245
 246 struct mlx5_base_av {
 247         union {
 248                 struct {
 249                         __be32  qkey;
 250                         __be32  reserved;
 251                 } qkey;
 252                 __be64  dc_key;
 253         } key;
 254         __be32  dqp_dct;
 255         u8      stat_rate_sl;
 256         u8      fl_mlid;
 257         union {
 258                 __be16  rlid;
 259                 __be16  udp_sport;
 260         };
 261 };
 262
 263 struct mlx5_av {
 264         union {
 265                 struct {
 266                         __be32  qkey;
 267                         __be32  reserved;
 268                 } qkey;
 269                 __be64  dc_key;
 270         } key;
 271         __be32  dqp_dct;
 272         u8      stat_rate_sl;
 273         u8      fl_mlid;
 274         union {
 275                 __be16  rlid;
 276                 __be16  udp_sport;
 277         };
 278         u8      reserved0[4];
 279         u8      rmac[6];
 280         u8      tclass;
 281         u8      hop_limit;
 282         __be32  grh_gid_fl;
 283         u8      rgid[16];
 284 };
 285
 286 struct mlx5_wqe_datagram_seg {
 287         struct mlx5_av  av;
 288 };
 289
 290 struct mlx5_wqe_raddr_seg {
 291         __be64                  raddr;
 292         __be32                  rkey;
 293         u32                     reserved;
 294 };
 295
 296 struct mlx5_wqe_atomic_seg {
 297         __be64                  swap_add;
 298         __be64                  compare;
 299 };
 300
 301 struct mlx5_wqe_data_seg {
 302         __be32                  byte_count;
 303         __be32                  lkey;
 304         __be64                  addr;
 305 };
 306
 307 struct mlx5_wqe_umr_ctrl_seg {
 308         u8              flags;
 309         u8              rsvd0[3];
 310         __be16          xlt_octowords;
 311         union {
 312                 __be16  xlt_offset;
 313                 __be16  bsf_octowords;
 314         };
 315         __be64          mkey_mask;
 316         __be32          xlt_offset_47_16;
 317         u8              rsvd1[28];
 318 };
 319
 320 struct mlx5_seg_set_psv {
 321         __be32          psv_num;
 322         __be16          syndrome;
 323         __be16          status;
 324         __be32          transient_sig;
 325         __be32          ref_tag;
 326 };
 327
 328 struct mlx5_seg_get_psv {
 329         u8              rsvd[19];
 330         u8              num_psv;
 331         __be32          l_key;
 332         __be64          va;
 333         __be32          psv_index[4];
 334 };
 335
 336 struct mlx5_seg_check_psv {
 337         u8              rsvd0[2];
 338         __be16          err_coalescing_op;
 339         u8              rsvd1[2];
 340         __be16          xport_err_op;
 341         u8              rsvd2[2];
 342         __be16          xport_err_mask;
 343         u8              rsvd3[7];
 344         u8              num_psv;
 345         __be32          l_key;
 346         __be64          va;
 347         __be32          psv_index[4];
 348 };
 349
 350 struct mlx5_rwqe_sig {
 351         u8      rsvd0[4];
 352         u8      signature;
 353         u8      rsvd1[11];
 354 };
 355
 356 struct mlx5_wqe_signature_seg {
 357         u8      rsvd0[4];
 358         u8      signature;
 359         u8      rsvd1[11];
 360 };
 361
 362 #define MLX5_WQE_INLINE_SEG_BYTE_COUNT_MASK 0x3ff
 363
 364 struct mlx5_wqe_inline_seg {
 365         __be32  byte_count;
 366 };
 367
 368 enum mlx5_sig_type {
 369         MLX5_DIF_CRC = 0x1,
 370         MLX5_DIF_IPCS = 0x2,
 371 };
 372
 373 struct mlx5_bsf_inl {
 374         __be16          vld_refresh;
 375         __be16          dif_apptag;
 376         __be32          dif_reftag;
 377         u8              sig_type;
 378         u8              rp_inv_seed;
 379         u8              rsvd[3];
 380         u8              dif_inc_ref_guard_check;
 381         __be16          dif_app_bitmask_check;
 382 };
 383
 384 struct mlx5_bsf {
 385         struct mlx5_bsf_basic {
 386                 u8              bsf_size_sbs;
 387                 u8              check_byte_mask;
 388                 union {
 389                         u8      copy_byte_mask;
 390                         u8      bs_selector;
 391                         u8      rsvd_wflags;
 392                 } wire;
 393                 union {
 394                         u8      bs_selector;
 395                         u8      rsvd_mflags;
 396                 } mem;
 397                 __be32          raw_data_size;
 398                 __be32          w_bfs_psv;
 399                 __be32          m_bfs_psv;
 400         } basic;
 401         struct mlx5_bsf_ext {
 402                 __be32          t_init_gen_pro_size;
 403                 __be32          rsvd_epi_size;
 404                 __be32          w_tfs_psv;
 405                 __be32          m_tfs_psv;
 406         } ext;
 407         struct mlx5_bsf_inl     w_inl;
 408         struct mlx5_bsf_inl     m_inl;
 409 };
 410
 411 struct mlx5_mtt {
 412         __be64          ptag;
 413 };
 414
 415 struct mlx5_klm {
 416         __be32          bcount;
 417         __be32          key;
 418         __be64          va;
 419 };
 420
 421 struct mlx5_stride_block_entry {
 422         __be16          stride;
 423         __be16          bcount;
 424         __be32          key;
 425         __be64          va;
 426 };
 427
 428 struct mlx5_stride_block_ctrl_seg {
 429         __be32          bcount_per_cycle;
 430         __be32          op;
 431         __be32          repeat_count;
 432         u16             rsvd;
 433         __be16          num_entries;
 434 };
 435
 436 struct mlx5_core_qp {
 437         struct mlx5_core_rsc_common     common; /* must be first */
 438         void (*event)           (struct mlx5_core_qp *, int);
 439         int                     qpn;
 440         struct mlx5_rsc_debug   *dbg;
 441         int                     pid;
 442 };
 443
 444 struct mlx5_qp_path {
 445         u8                      fl_free_ar;
 446         u8                      rsvd3;
 447         __be16                  pkey_index;
 448         u8                      rsvd0;
 449         u8                      grh_mlid;
 450         __be16                  rlid;
 451         u8                      ackto_lt;
 452         u8                      mgid_index;
 453         u8                      static_rate;
 454         u8                      hop_limit;
 455         __be32                  tclass_flowlabel;
 456         union {
 457                 u8              rgid[16];
 458                 u8              rip[16];
 459         };
 460         u8                      f_dscp_ecn_prio;
 461         u8                      ecn_dscp;
 462         __be16                  udp_sport;
 463         u8                      dci_cfi_prio_sl;
 464         u8                      port;
 465         u8                      rmac[6];
 466 };
 467
 468 /* FIXME: use mlx5_ifc.h qpc */
 469 struct mlx5_qp_context {
 470         __be32                  flags;
 471         __be32                  flags_pd;
 472         u8                      mtu_msgmax;
 473         u8                      rq_size_stride;
 474         __be16                  sq_crq_size;
 475         __be32                  qp_counter_set_usr_page;
 476         __be32                  wire_qpn;
 477         __be32                  log_pg_sz_remote_qpn;
 478         struct                  mlx5_qp_path pri_path;
 479         struct                  mlx5_qp_path alt_path;
 480         __be32                  params1;
 481         u8                      reserved2[4];
 482         __be32                  next_send_psn;
 483         __be32                  cqn_send;
 484         __be32                  deth_sqpn;
 485         u8                      reserved3[4];
 486         __be32                  last_acked_psn;
 487         __be32                  ssn;
 488         __be32                  params2;
 489         __be32                  rnr_nextrecvpsn;
 490         __be32                  xrcd;
 491         __be32                  cqn_recv;
 492         __be64                  db_rec_addr;
 493         __be32                  qkey;
 494         __be32                  rq_type_srqn;
 495         __be32                  rmsn;
 496         __be16                  hw_sq_wqe_counter;
 497         __be16                  sw_sq_wqe_counter;
 498         __be16                  hw_rcyclic_byte_counter;
 499         __be16                  hw_rq_counter;
 500         __be16                  sw_rcyclic_byte_counter;
 501         __be16                  sw_rq_counter;
 502         u8                      rsvd0[5];
 503         u8                      cgs;
 504         u8                      cs_req;
 505         u8                      cs_res;
 506         __be64                  dc_access_key;
 507         u8                      rsvd1[24];
 508 };
 509
 510 static inline struct mlx5_core_qp *__mlx5_qp_lookup(struct mlx5_core_dev *dev, u32 qpn)
 511 {
 512         return radix_tree_lookup(&dev->priv.qp_table.tree, qpn);
 513 }
 514
 515 static inline struct mlx5_core_mkey *__mlx5_mr_lookup(struct mlx5_core_dev *dev, u32 key)
 516 {
 517         return radix_tree_lookup(&dev->priv.mkey_table.tree, key);
 518 }
 519
 520 int mlx5_core_create_qp(struct mlx5_core_dev *dev,
 521                         struct mlx5_core_qp *qp,
 522                         u32 *in,
 523                         int inlen);
 524 int mlx5_core_qp_modify(struct mlx5_core_dev *dev, u16 opcode,
 525                         u32 opt_param_mask, void *qpc,
 526                         struct mlx5_core_qp *qp);
 527 int mlx5_core_destroy_qp(struct mlx5_core_dev *dev,
 528                          struct mlx5_core_qp *qp);
 529 int mlx5_core_qp_query(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp,
 530                        u32 *out, int outlen);
 531
 532 int mlx5_core_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn);
 533 int mlx5_core_xrcd_dealloc(struct mlx5_core_dev *dev, u32 xrcdn);
 534 void mlx5_init_qp_table(struct mlx5_core_dev *dev);
 535 void mlx5_cleanup_qp_table(struct mlx5_core_dev *dev);
 536 int mlx5_debug_qp_add(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp);
 537 void mlx5_debug_qp_remove(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp);
 538 int mlx5_core_create_rq_tracked(struct mlx5_core_dev *dev, u32 *in, int inlen,
 539                                 struct mlx5_core_qp *rq);
 540 void mlx5_core_destroy_rq_tracked(struct mlx5_core_dev *dev,
 541                                   struct mlx5_core_qp *rq);
 542 int mlx5_core_create_sq_tracked(struct mlx5_core_dev *dev, u32 *in, int inlen,
 543                                 struct mlx5_core_qp *sq);
 544 void mlx5_core_destroy_sq_tracked(struct mlx5_core_dev *dev,
 545                                   struct mlx5_core_qp *sq);
 546 int mlx5_core_alloc_q_counter(struct mlx5_core_dev *dev, u16 *counter_id);
 547 int mlx5_core_dealloc_q_counter(struct mlx5_core_dev *dev, u16 counter_id);
 548 int mlx5_core_query_q_counter(struct mlx5_core_dev *dev, u16 counter_id,
 549                               int reset, void *out, int out_size);
 550 int mlx5_core_query_out_of_buffer(struct mlx5_core_dev *dev, u16 counter_id,
 551                                   u32 *out_of_buffer);
 552
 553 static inline const char *mlx5_qp_type_str(int type)
 554 {
 555         switch (type) {
 556         case MLX5_QP_ST_RC: return "RC";
 557         case MLX5_QP_ST_UC: return "C";
 558         case MLX5_QP_ST_UD: return "UD";
 559         case MLX5_QP_ST_XRC: return "XRC";
 560         case MLX5_QP_ST_MLX: return "MLX";
 561         case MLX5_QP_ST_QP0: return "QP0";
 562         case MLX5_QP_ST_QP1: return "QP1";
 563         case MLX5_QP_ST_RAW_ETHERTYPE: return "RAW_ETHERTYPE";
 564         case MLX5_QP_ST_RAW_IPV6: return "RAW_IPV6";
 565         case MLX5_QP_ST_SNIFFER: return "SNIFFER";
 566         case MLX5_QP_ST_SYNC_UMR: return "SYNC_UMR";
 567         case MLX5_QP_ST_PTP_1588: return "PTP_1588";
 568         case MLX5_QP_ST_REG_UMR: return "REG_UMR";
 569         default: return "Invalid transport type";
 570         }
 571 }
 572
 573 static inline const char *mlx5_qp_state_str(int state)
 574 {
 575         switch (state) {
 576         case MLX5_QP_STATE_RST:
 577         return "RST";
 578         case MLX5_QP_STATE_INIT:
 579         return "INIT";
 580         case MLX5_QP_STATE_RTR:
 581         return "RTR";
 582         case MLX5_QP_STATE_RTS:
 583         return "RTS";
 584         case MLX5_QP_STATE_SQER:
 585         return "SQER";
 586         case MLX5_QP_STATE_SQD:
 587         return "SQD";
 588         case MLX5_QP_STATE_ERR:
 589         return "ERR";
 590         case MLX5_QP_STATE_SQ_DRAINING:
 591         return "SQ_DRAINING";
 592         case MLX5_QP_STATE_SUSPENDED:
 593         return "SUSPENDED";
 594         default: return "Invalid QP state";
 595         }
 596 }
 597
 598 #endif /* MLX5_QP_H */