linux/include/linux/mlx4/qp.h
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   1/*
   2 * Copyright (c) 2007 Cisco Systems, 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 MLX4_QP_H
  34#define MLX4_QP_H
  35
  36#include <linux/types.h>
  37#include <linux/if_ether.h>
  38
  39#include <linux/mlx4/device.h>
  40
  41#define MLX4_INVALID_LKEY       0x100
  42
  43enum mlx4_qp_optpar {
  44        MLX4_QP_OPTPAR_ALT_ADDR_PATH            = 1 << 0,
  45        MLX4_QP_OPTPAR_RRE                      = 1 << 1,
  46        MLX4_QP_OPTPAR_RAE                      = 1 << 2,
  47        MLX4_QP_OPTPAR_RWE                      = 1 << 3,
  48        MLX4_QP_OPTPAR_PKEY_INDEX               = 1 << 4,
  49        MLX4_QP_OPTPAR_Q_KEY                    = 1 << 5,
  50        MLX4_QP_OPTPAR_RNR_TIMEOUT              = 1 << 6,
  51        MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH        = 1 << 7,
  52        MLX4_QP_OPTPAR_SRA_MAX                  = 1 << 8,
  53        MLX4_QP_OPTPAR_RRA_MAX                  = 1 << 9,
  54        MLX4_QP_OPTPAR_PM_STATE                 = 1 << 10,
  55        MLX4_QP_OPTPAR_RETRY_COUNT              = 1 << 12,
  56        MLX4_QP_OPTPAR_RNR_RETRY                = 1 << 13,
  57        MLX4_QP_OPTPAR_ACK_TIMEOUT              = 1 << 14,
  58        MLX4_QP_OPTPAR_SCHED_QUEUE              = 1 << 16,
  59        MLX4_QP_OPTPAR_COUNTER_INDEX            = 1 << 20,
  60        MLX4_QP_OPTPAR_VLAN_STRIPPING           = 1 << 21,
  61};
  62
  63enum mlx4_qp_state {
  64        MLX4_QP_STATE_RST                       = 0,
  65        MLX4_QP_STATE_INIT                      = 1,
  66        MLX4_QP_STATE_RTR                       = 2,
  67        MLX4_QP_STATE_RTS                       = 3,
  68        MLX4_QP_STATE_SQER                      = 4,
  69        MLX4_QP_STATE_SQD                       = 5,
  70        MLX4_QP_STATE_ERR                       = 6,
  71        MLX4_QP_STATE_SQ_DRAINING               = 7,
  72        MLX4_QP_NUM_STATE
  73};
  74
  75enum {
  76        MLX4_QP_ST_RC                           = 0x0,
  77        MLX4_QP_ST_UC                           = 0x1,
  78        MLX4_QP_ST_RD                           = 0x2,
  79        MLX4_QP_ST_UD                           = 0x3,
  80        MLX4_QP_ST_XRC                          = 0x6,
  81        MLX4_QP_ST_MLX                          = 0x7
  82};
  83
  84enum {
  85        MLX4_QP_PM_MIGRATED                     = 0x3,
  86        MLX4_QP_PM_ARMED                        = 0x0,
  87        MLX4_QP_PM_REARM                        = 0x1
  88};
  89
  90enum {
  91        /* params1 */
  92        MLX4_QP_BIT_SRE                         = 1 << 15,
  93        MLX4_QP_BIT_SWE                         = 1 << 14,
  94        MLX4_QP_BIT_SAE                         = 1 << 13,
  95        /* params2 */
  96        MLX4_QP_BIT_RRE                         = 1 << 15,
  97        MLX4_QP_BIT_RWE                         = 1 << 14,
  98        MLX4_QP_BIT_RAE                         = 1 << 13,
  99        MLX4_QP_BIT_FPP                         = 1 <<  3,
 100        MLX4_QP_BIT_RIC                         = 1 <<  4,
 101};
 102
 103enum {
 104        MLX4_RSS_HASH_XOR                       = 0,
 105        MLX4_RSS_HASH_TOP                       = 1,
 106
 107        MLX4_RSS_UDP_IPV6                       = 1 << 0,
 108        MLX4_RSS_UDP_IPV4                       = 1 << 1,
 109        MLX4_RSS_TCP_IPV6                       = 1 << 2,
 110        MLX4_RSS_IPV6                           = 1 << 3,
 111        MLX4_RSS_TCP_IPV4                       = 1 << 4,
 112        MLX4_RSS_IPV4                           = 1 << 5,
 113
 114        MLX4_RSS_BY_OUTER_HEADERS               = 0 << 6,
 115        MLX4_RSS_BY_INNER_HEADERS               = 2 << 6,
 116        MLX4_RSS_BY_INNER_HEADERS_IPONLY        = 3 << 6,
 117
 118        /* offset of mlx4_rss_context within mlx4_qp_context.pri_path */
 119        MLX4_RSS_OFFSET_IN_QPC_PRI_PATH         = 0x24,
 120        /* offset of being RSS indirection QP within mlx4_qp_context.flags */
 121        MLX4_RSS_QPC_FLAG_OFFSET                = 13,
 122};
 123
 124#define MLX4_EN_RSS_KEY_SIZE 40
 125
 126struct mlx4_rss_context {
 127        __be32                  base_qpn;
 128        __be32                  default_qpn;
 129        u16                     reserved;
 130        u8                      hash_fn;
 131        u8                      flags;
 132        __be32                  rss_key[MLX4_EN_RSS_KEY_SIZE / sizeof(__be32)];
 133        __be32                  base_qpn_udp;
 134};
 135
 136struct mlx4_qp_path {
 137        u8                      fl;
 138        u8                      vlan_control;
 139        u8                      disable_pkey_check;
 140        u8                      pkey_index;
 141        u8                      counter_index;
 142        u8                      grh_mylmc;
 143        __be16                  rlid;
 144        u8                      ackto;
 145        u8                      mgid_index;
 146        u8                      static_rate;
 147        u8                      hop_limit;
 148        __be32                  tclass_flowlabel;
 149        u8                      rgid[16];
 150        u8                      sched_queue;
 151        u8                      vlan_index;
 152        u8                      feup;
 153        u8                      fvl_rx;
 154        u8                      reserved4[2];
 155        u8                      dmac[ETH_ALEN];
 156};
 157
 158enum { /* fl */
 159        MLX4_FL_CV      = 1 << 6,
 160        MLX4_FL_ETH_HIDE_CQE_VLAN       = 1 << 2
 161};
 162enum { /* vlan_control */
 163        MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED      = 1 << 6,
 164        MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED = 1 << 5, /* 802.1p priority tag */
 165        MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED    = 1 << 4,
 166        MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED      = 1 << 2,
 167        MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED = 1 << 1, /* 802.1p priority tag */
 168        MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED    = 1 << 0
 169};
 170
 171enum { /* feup */
 172        MLX4_FEUP_FORCE_ETH_UP          = 1 << 6, /* force Eth UP */
 173        MLX4_FSM_FORCE_ETH_SRC_MAC      = 1 << 5, /* force Source MAC */
 174        MLX4_FVL_FORCE_ETH_VLAN         = 1 << 3  /* force Eth vlan */
 175};
 176
 177enum { /* fvl_rx */
 178        MLX4_FVL_RX_FORCE_ETH_VLAN      = 1 << 0 /* enforce Eth rx vlan */
 179};
 180
 181struct mlx4_qp_context {
 182        __be32                  flags;
 183        __be32                  pd;
 184        u8                      mtu_msgmax;
 185        u8                      rq_size_stride;
 186        u8                      sq_size_stride;
 187        u8                      rlkey;
 188        __be32                  usr_page;
 189        __be32                  local_qpn;
 190        __be32                  remote_qpn;
 191        struct                  mlx4_qp_path pri_path;
 192        struct                  mlx4_qp_path alt_path;
 193        __be32                  params1;
 194        u32                     reserved1;
 195        __be32                  next_send_psn;
 196        __be32                  cqn_send;
 197        u32                     reserved2[2];
 198        __be32                  last_acked_psn;
 199        __be32                  ssn;
 200        __be32                  params2;
 201        __be32                  rnr_nextrecvpsn;
 202        __be32                  xrcd;
 203        __be32                  cqn_recv;
 204        __be64                  db_rec_addr;
 205        __be32                  qkey;
 206        __be32                  srqn;
 207        __be32                  msn;
 208        __be16                  rq_wqe_counter;
 209        __be16                  sq_wqe_counter;
 210        u32                     reserved3;
 211        __be16                  rate_limit_params;
 212        u8                      reserved4;
 213        u8                      qos_vport;
 214        __be32                  param3;
 215        __be32                  nummmcpeers_basemkey;
 216        u8                      log_page_size;
 217        u8                      reserved5[2];
 218        u8                      mtt_base_addr_h;
 219        __be32                  mtt_base_addr_l;
 220        u32                     reserved6[10];
 221};
 222
 223struct mlx4_update_qp_context {
 224        __be64                  qp_mask;
 225        __be64                  primary_addr_path_mask;
 226        __be64                  secondary_addr_path_mask;
 227        u64                     reserved1;
 228        struct mlx4_qp_context  qp_context;
 229        u64                     reserved2[58];
 230};
 231
 232enum {
 233        MLX4_UPD_QP_MASK_PM_STATE       = 32,
 234        MLX4_UPD_QP_MASK_VSD            = 33,
 235        MLX4_UPD_QP_MASK_QOS_VPP        = 34,
 236        MLX4_UPD_QP_MASK_RATE_LIMIT     = 35,
 237};
 238
 239enum {
 240        MLX4_UPD_QP_PATH_MASK_PKEY_INDEX                = 0 + 32,
 241        MLX4_UPD_QP_PATH_MASK_FSM                       = 1 + 32,
 242        MLX4_UPD_QP_PATH_MASK_MAC_INDEX                 = 2 + 32,
 243        MLX4_UPD_QP_PATH_MASK_FVL                       = 3 + 32,
 244        MLX4_UPD_QP_PATH_MASK_CV                        = 4 + 32,
 245        MLX4_UPD_QP_PATH_MASK_VLAN_INDEX                = 5 + 32,
 246        MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN         = 6 + 32,
 247        MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED     = 7 + 32,
 248        MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P           = 8 + 32,
 249        MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED       = 9 + 32,
 250        MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED     = 10 + 32,
 251        MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P           = 11 + 32,
 252        MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED       = 12 + 32,
 253        MLX4_UPD_QP_PATH_MASK_FEUP                      = 13 + 32,
 254        MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE               = 14 + 32,
 255        MLX4_UPD_QP_PATH_MASK_IF_COUNTER_INDEX          = 15 + 32,
 256        MLX4_UPD_QP_PATH_MASK_FVL_RX                    = 16 + 32,
 257};
 258
 259enum { /* param3 */
 260        MLX4_STRIP_VLAN = 1 << 30
 261};
 262
 263/* Which firmware version adds support for NEC (NoErrorCompletion) bit */
 264#define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)
 265
 266enum {
 267        MLX4_WQE_CTRL_NEC               = 1 << 29,
 268        MLX4_WQE_CTRL_IIP               = 1 << 28,
 269        MLX4_WQE_CTRL_ILP               = 1 << 27,
 270        MLX4_WQE_CTRL_FENCE             = 1 << 6,
 271        MLX4_WQE_CTRL_CQ_UPDATE         = 3 << 2,
 272        MLX4_WQE_CTRL_SOLICITED         = 1 << 1,
 273        MLX4_WQE_CTRL_IP_CSUM           = 1 << 4,
 274        MLX4_WQE_CTRL_TCP_UDP_CSUM      = 1 << 5,
 275        MLX4_WQE_CTRL_INS_VLAN          = 1 << 6,
 276        MLX4_WQE_CTRL_STRONG_ORDER      = 1 << 7,
 277        MLX4_WQE_CTRL_FORCE_LOOPBACK    = 1 << 0,
 278};
 279
 280struct mlx4_wqe_ctrl_seg {
 281        __be32                  owner_opcode;
 282        union {
 283                struct {
 284                        __be16                  vlan_tag;
 285                        u8                      ins_vlan;
 286                        u8                      fence_size;
 287                };
 288                __be32                  bf_qpn;
 289        };
 290        /*
 291         * High 24 bits are SRC remote buffer; low 8 bits are flags:
 292         * [7]   SO (strong ordering)
 293         * [5]   TCP/UDP checksum
 294         * [4]   IP checksum
 295         * [3:2] C (generate completion queue entry)
 296         * [1]   SE (solicited event)
 297         * [0]   FL (force loopback)
 298         */
 299        union {
 300                __be32                  srcrb_flags;
 301                __be16                  srcrb_flags16[2];
 302        };
 303        /*
 304         * imm is immediate data for send/RDMA write w/ immediate;
 305         * also invalidation key for send with invalidate; input
 306         * modifier for WQEs on CCQs.
 307         */
 308        __be32                  imm;
 309};
 310
 311enum {
 312        MLX4_WQE_MLX_VL15       = 1 << 17,
 313        MLX4_WQE_MLX_SLR        = 1 << 16
 314};
 315
 316struct mlx4_wqe_mlx_seg {
 317        u8                      owner;
 318        u8                      reserved1[2];
 319        u8                      opcode;
 320        __be16                  sched_prio;
 321        u8                      reserved2;
 322        u8                      size;
 323        /*
 324         * [17]    VL15
 325         * [16]    SLR
 326         * [15:12] static rate
 327         * [11:8]  SL
 328         * [4]     ICRC
 329         * [3:2]   C
 330         * [0]     FL (force loopback)
 331         */
 332        __be32                  flags;
 333        __be16                  rlid;
 334        u16                     reserved3;
 335};
 336
 337struct mlx4_wqe_datagram_seg {
 338        __be32                  av[8];
 339        __be32                  dqpn;
 340        __be32                  qkey;
 341        __be16                  vlan;
 342        u8                      mac[ETH_ALEN];
 343};
 344
 345struct mlx4_wqe_lso_seg {
 346        __be32                  mss_hdr_size;
 347        __be32                  header[0];
 348};
 349
 350enum mlx4_wqe_bind_seg_flags2 {
 351        MLX4_WQE_BIND_ZERO_BASED = (1 << 30),
 352        MLX4_WQE_BIND_TYPE_2     = (1 << 31),
 353};
 354
 355struct mlx4_wqe_bind_seg {
 356        __be32                  flags1;
 357        __be32                  flags2;
 358        __be32                  new_rkey;
 359        __be32                  lkey;
 360        __be64                  addr;
 361        __be64                  length;
 362};
 363
 364enum {
 365        MLX4_WQE_FMR_PERM_LOCAL_READ    = 1 << 27,
 366        MLX4_WQE_FMR_PERM_LOCAL_WRITE   = 1 << 28,
 367        MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_READ  = 1 << 29,
 368        MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_WRITE = 1 << 30,
 369        MLX4_WQE_FMR_AND_BIND_PERM_ATOMIC       = 1 << 31
 370};
 371
 372struct mlx4_wqe_fmr_seg {
 373        __be32                  flags;
 374        __be32                  mem_key;
 375        __be64                  buf_list;
 376        __be64                  start_addr;
 377        __be64                  reg_len;
 378        __be32                  offset;
 379        __be32                  page_size;
 380        u32                     reserved[2];
 381};
 382
 383struct mlx4_wqe_fmr_ext_seg {
 384        u8                      flags;
 385        u8                      reserved;
 386        __be16                  app_mask;
 387        __be16                  wire_app_tag;
 388        __be16                  mem_app_tag;
 389        __be32                  wire_ref_tag_base;
 390        __be32                  mem_ref_tag_base;
 391};
 392
 393struct mlx4_wqe_local_inval_seg {
 394        u64                     reserved1;
 395        __be32                  mem_key;
 396        u32                     reserved2;
 397        u64                     reserved3[2];
 398};
 399
 400struct mlx4_wqe_raddr_seg {
 401        __be64                  raddr;
 402        __be32                  rkey;
 403        u32                     reserved;
 404};
 405
 406struct mlx4_wqe_atomic_seg {
 407        __be64                  swap_add;
 408        __be64                  compare;
 409};
 410
 411struct mlx4_wqe_masked_atomic_seg {
 412        __be64                  swap_add;
 413        __be64                  compare;
 414        __be64                  swap_add_mask;
 415        __be64                  compare_mask;
 416};
 417
 418struct mlx4_wqe_data_seg {
 419        __be32                  byte_count;
 420        __be32                  lkey;
 421        __be64                  addr;
 422};
 423
 424enum {
 425        MLX4_INLINE_ALIGN       = 64,
 426        MLX4_INLINE_SEG         = 1 << 31,
 427};
 428
 429struct mlx4_wqe_inline_seg {
 430        __be32                  byte_count;
 431};
 432
 433enum mlx4_update_qp_attr {
 434        MLX4_UPDATE_QP_SMAC             = 1 << 0,
 435        MLX4_UPDATE_QP_VSD              = 1 << 1,
 436        MLX4_UPDATE_QP_RATE_LIMIT       = 1 << 2,
 437        MLX4_UPDATE_QP_QOS_VPORT        = 1 << 3,
 438        MLX4_UPDATE_QP_SUPPORTED_ATTRS  = (1 << 4) - 1
 439};
 440
 441enum mlx4_update_qp_params_flags {
 442        MLX4_UPDATE_QP_PARAMS_FLAGS_VSD_ENABLE          = 1 << 0,
 443};
 444
 445struct mlx4_update_qp_params {
 446        u8      smac_index;
 447        u8      qos_vport;
 448        u32     flags;
 449        u16     rate_unit;
 450        u16     rate_val;
 451};
 452
 453int mlx4_update_qp(struct mlx4_dev *dev, u32 qpn,
 454                   enum mlx4_update_qp_attr attr,
 455                   struct mlx4_update_qp_params *params);
 456int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 457                   enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
 458                   struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
 459                   int sqd_event, struct mlx4_qp *qp);
 460
 461int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp,
 462                  struct mlx4_qp_context *context);
 463
 464int mlx4_qp_to_ready(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 465                     struct mlx4_qp_context *context,
 466                     struct mlx4_qp *qp, enum mlx4_qp_state *qp_state);
 467
 468static inline struct mlx4_qp *__mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn)
 469{
 470        return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1));
 471}
 472
 473void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp);
 474
 475#endif /* MLX4_QP_H */
 476