include/linux/mlx4/qp.h

   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
  43 enum 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
  63 enum 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
  75 enum {
  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
  84 enum {
  85         MLX4_QP_PM_MIGRATED                     = 0x3,
  86         MLX4_QP_PM_ARMED                        = 0x0,
  87         MLX4_QP_PM_REARM                        = 0x1
  88 };
  89
  90 enum {
  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
 103 enum {
 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
 126 struct 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
 136 struct mlx4_qp_path {
 137         u8                      fl;
 138         union {
 139                 u8                      vlan_control;
 140                 u8                      control;
 141         };
 142         u8                      disable_pkey_check;
 143         u8                      pkey_index;
 144         u8                      counter_index;
 145         u8                      grh_mylmc;
 146         __be16                  rlid;
 147         u8                      ackto;
 148         u8                      mgid_index;
 149         u8                      static_rate;
 150         u8                      hop_limit;
 151         __be32                  tclass_flowlabel;
 152         u8                      rgid[16];
 153         u8                      sched_queue;
 154         u8                      vlan_index;
 155         u8                      feup;
 156         u8                      fvl_rx;
 157         u8                      reserved4[2];
 158         u8                      dmac[ETH_ALEN];
 159 };
 160
 161 enum { /* fl */
 162         MLX4_FL_CV      = 1 << 6,
 163         MLX4_FL_SV      = 1 << 5,
 164         MLX4_FL_ETH_HIDE_CQE_VLAN       = 1 << 2,
 165         MLX4_FL_ETH_SRC_CHECK_MC_LB     = 1 << 1,
 166         MLX4_FL_ETH_SRC_CHECK_UC_LB     = 1 << 0,
 167 };
 168
 169 enum { /* control */
 170         MLX4_CTRL_ETH_SRC_CHECK_IF_COUNTER      = 1 << 7,
 171 };
 172
 173 enum { /* vlan_control */
 174         MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED      = 1 << 6,
 175         MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED = 1 << 5, /* 802.1p priority tag */
 176         MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED    = 1 << 4,
 177         MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED      = 1 << 2,
 178         MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED = 1 << 1, /* 802.1p priority tag */
 179         MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED    = 1 << 0
 180 };
 181
 182 enum { /* feup */
 183         MLX4_FEUP_FORCE_ETH_UP          = 1 << 6, /* force Eth UP */
 184         MLX4_FSM_FORCE_ETH_SRC_MAC      = 1 << 5, /* force Source MAC */
 185         MLX4_FVL_FORCE_ETH_VLAN         = 1 << 3  /* force Eth vlan */
 186 };
 187
 188 enum { /* fvl_rx */
 189         MLX4_FVL_RX_FORCE_ETH_VLAN      = 1 << 0 /* enforce Eth rx vlan */
 190 };
 191
 192 struct mlx4_qp_context {
 193         __be32                  flags;
 194         __be32                  pd;
 195         u8                      mtu_msgmax;
 196         u8                      rq_size_stride;
 197         u8                      sq_size_stride;
 198         u8                      rlkey_roce_mode;
 199         __be32                  usr_page;
 200         __be32                  local_qpn;
 201         __be32                  remote_qpn;
 202         struct                  mlx4_qp_path pri_path;
 203         struct                  mlx4_qp_path alt_path;
 204         __be32                  params1;
 205         u32                     reserved1;
 206         __be32                  next_send_psn;
 207         __be32                  cqn_send;
 208         __be16                  roce_entropy;
 209         __be16                  reserved2[3];
 210         __be32                  last_acked_psn;
 211         __be32                  ssn;
 212         __be32                  params2;
 213         __be32                  rnr_nextrecvpsn;
 214         __be32                  xrcd;
 215         __be32                  cqn_recv;
 216         __be64                  db_rec_addr;
 217         __be32                  qkey;
 218         __be32                  srqn;
 219         __be32                  msn;
 220         __be16                  rq_wqe_counter;
 221         __be16                  sq_wqe_counter;
 222         u32                     reserved3;
 223         __be16                  rate_limit_params;
 224         u8                      reserved4;
 225         u8                      qos_vport;
 226         __be32                  param3;
 227         __be32                  nummmcpeers_basemkey;
 228         u8                      log_page_size;
 229         u8                      reserved5[2];
 230         u8                      mtt_base_addr_h;
 231         __be32                  mtt_base_addr_l;
 232         u32                     reserved6[10];
 233 };
 234
 235 struct mlx4_update_qp_context {
 236         __be64                  qp_mask;
 237         __be64                  primary_addr_path_mask;
 238         __be64                  secondary_addr_path_mask;
 239         u64                     reserved1;
 240         struct mlx4_qp_context  qp_context;
 241         u64                     reserved2[58];
 242 };
 243
 244 enum {
 245         MLX4_UPD_QP_MASK_PM_STATE       = 32,
 246         MLX4_UPD_QP_MASK_VSD            = 33,
 247         MLX4_UPD_QP_MASK_QOS_VPP        = 34,
 248         MLX4_UPD_QP_MASK_RATE_LIMIT     = 35,
 249 };
 250
 251 enum {
 252         MLX4_UPD_QP_PATH_MASK_PKEY_INDEX                = 0 + 32,
 253         MLX4_UPD_QP_PATH_MASK_FSM                       = 1 + 32,
 254         MLX4_UPD_QP_PATH_MASK_MAC_INDEX                 = 2 + 32,
 255         MLX4_UPD_QP_PATH_MASK_FVL                       = 3 + 32,
 256         MLX4_UPD_QP_PATH_MASK_CV                        = 4 + 32,
 257         MLX4_UPD_QP_PATH_MASK_VLAN_INDEX                = 5 + 32,
 258         MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN         = 6 + 32,
 259         MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED     = 7 + 32,
 260         MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P           = 8 + 32,
 261         MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED       = 9 + 32,
 262         MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED     = 10 + 32,
 263         MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P           = 11 + 32,
 264         MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED       = 12 + 32,
 265         MLX4_UPD_QP_PATH_MASK_FEUP                      = 13 + 32,
 266         MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE               = 14 + 32,
 267         MLX4_UPD_QP_PATH_MASK_IF_COUNTER_INDEX          = 15 + 32,
 268         MLX4_UPD_QP_PATH_MASK_FVL_RX                    = 16 + 32,
 269         MLX4_UPD_QP_PATH_MASK_ETH_SRC_CHECK_UC_LB       = 18 + 32,
 270         MLX4_UPD_QP_PATH_MASK_ETH_SRC_CHECK_MC_LB       = 19 + 32,
 271         MLX4_UPD_QP_PATH_MASK_SV                        = 22 + 32,
 272 };
 273
 274 enum { /* param3 */
 275         MLX4_STRIP_VLAN = 1 << 30
 276 };
 277
 278 /* Which firmware version adds support for NEC (NoErrorCompletion) bit */
 279 #define MLX4_FW_VER_WQE_CTRL_NEC mlx4_fw_ver(2, 2, 232)
 280
 281 enum {
 282         MLX4_WQE_CTRL_NEC               = 1 << 29,
 283         MLX4_WQE_CTRL_IIP               = 1 << 28,
 284         MLX4_WQE_CTRL_ILP               = 1 << 27,
 285         MLX4_WQE_CTRL_FENCE             = 1 << 6,
 286         MLX4_WQE_CTRL_CQ_UPDATE         = 3 << 2,
 287         MLX4_WQE_CTRL_SOLICITED         = 1 << 1,
 288         MLX4_WQE_CTRL_IP_CSUM           = 1 << 4,
 289         MLX4_WQE_CTRL_TCP_UDP_CSUM      = 1 << 5,
 290         MLX4_WQE_CTRL_INS_CVLAN         = 1 << 6,
 291         MLX4_WQE_CTRL_INS_SVLAN         = 1 << 7,
 292         MLX4_WQE_CTRL_STRONG_ORDER      = 1 << 7,
 293         MLX4_WQE_CTRL_FORCE_LOOPBACK    = 1 << 0,
 294 };
 295
 296 union mlx4_wqe_qpn_vlan {
 297         struct {
 298                 __be16  vlan_tag;
 299                 u8      ins_vlan;
 300                 u8      fence_size;
 301         };
 302         __be32          bf_qpn;
 303 };
 304
 305 struct mlx4_wqe_ctrl_seg {
 306         __be32                  owner_opcode;
 307         union mlx4_wqe_qpn_vlan qpn_vlan;
 308         /*
 309          * High 24 bits are SRC remote buffer; low 8 bits are flags:
 310          * [7]   SO (strong ordering)
 311          * [5]   TCP/UDP checksum
 312          * [4]   IP checksum
 313          * [3:2] C (generate completion queue entry)
 314          * [1]   SE (solicited event)
 315          * [0]   FL (force loopback)
 316          */
 317         union {
 318                 __be32                  srcrb_flags;
 319                 __be16                  srcrb_flags16[2];
 320         };
 321         /*
 322          * imm is immediate data for send/RDMA write w/ immediate;
 323          * also invalidation key for send with invalidate; input
 324          * modifier for WQEs on CCQs.
 325          */
 326         __be32                  imm;
 327 };
 328
 329 enum {
 330         MLX4_WQE_MLX_VL15       = 1 << 17,
 331         MLX4_WQE_MLX_SLR        = 1 << 16
 332 };
 333
 334 struct mlx4_wqe_mlx_seg {
 335         u8                      owner;
 336         u8                      reserved1[2];
 337         u8                      opcode;
 338         __be16                  sched_prio;
 339         u8                      reserved2;
 340         u8                      size;
 341         /*
 342          * [17]    VL15
 343          * [16]    SLR
 344          * [15:12] static rate
 345          * [11:8]  SL
 346          * [4]     ICRC
 347          * [3:2]   C
 348          * [0]     FL (force loopback)
 349          */
 350         __be32                  flags;
 351         __be16                  rlid;
 352         u16                     reserved3;
 353 };
 354
 355 struct mlx4_wqe_datagram_seg {
 356         __be32                  av[8];
 357         __be32                  dqpn;
 358         __be32                  qkey;
 359         __be16                  vlan;
 360         u8                      mac[ETH_ALEN];
 361 };
 362
 363 struct mlx4_wqe_lso_seg {
 364         __be32                  mss_hdr_size;
 365         __be32                  header[0];
 366 };
 367
 368 enum mlx4_wqe_bind_seg_flags2 {
 369         MLX4_WQE_BIND_ZERO_BASED = (1 << 30),
 370         MLX4_WQE_BIND_TYPE_2     = (1 << 31),
 371 };
 372
 373 struct mlx4_wqe_bind_seg {
 374         __be32                  flags1;
 375         __be32                  flags2;
 376         __be32                  new_rkey;
 377         __be32                  lkey;
 378         __be64                  addr;
 379         __be64                  length;
 380 };
 381
 382 enum {
 383         MLX4_WQE_FMR_PERM_LOCAL_READ    = 1 << 27,
 384         MLX4_WQE_FMR_PERM_LOCAL_WRITE   = 1 << 28,
 385         MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_READ  = 1 << 29,
 386         MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_WRITE = 1 << 30,
 387         MLX4_WQE_FMR_AND_BIND_PERM_ATOMIC       = 1 << 31
 388 };
 389
 390 struct mlx4_wqe_fmr_seg {
 391         __be32                  flags;
 392         __be32                  mem_key;
 393         __be64                  buf_list;
 394         __be64                  start_addr;
 395         __be64                  reg_len;
 396         __be32                  offset;
 397         __be32                  page_size;
 398         u32                     reserved[2];
 399 };
 400
 401 struct mlx4_wqe_fmr_ext_seg {
 402         u8                      flags;
 403         u8                      reserved;
 404         __be16                  app_mask;
 405         __be16                  wire_app_tag;
 406         __be16                  mem_app_tag;
 407         __be32                  wire_ref_tag_base;
 408         __be32                  mem_ref_tag_base;
 409 };
 410
 411 struct mlx4_wqe_local_inval_seg {
 412         u64                     reserved1;
 413         __be32                  mem_key;
 414         u32                     reserved2;
 415         u64                     reserved3[2];
 416 };
 417
 418 struct mlx4_wqe_raddr_seg {
 419         __be64                  raddr;
 420         __be32                  rkey;
 421         u32                     reserved;
 422 };
 423
 424 struct mlx4_wqe_atomic_seg {
 425         __be64                  swap_add;
 426         __be64                  compare;
 427 };
 428
 429 struct mlx4_wqe_masked_atomic_seg {
 430         __be64                  swap_add;
 431         __be64                  compare;
 432         __be64                  swap_add_mask;
 433         __be64                  compare_mask;
 434 };
 435
 436 struct mlx4_wqe_data_seg {
 437         __be32                  byte_count;
 438         __be32                  lkey;
 439         __be64                  addr;
 440 };
 441
 442 enum {
 443         MLX4_INLINE_ALIGN       = 64,
 444         MLX4_INLINE_SEG         = 1 << 31,
 445 };
 446
 447 struct mlx4_wqe_inline_seg {
 448         __be32                  byte_count;
 449 };
 450
 451 enum mlx4_update_qp_attr {
 452         MLX4_UPDATE_QP_SMAC             = 1 << 0,
 453         MLX4_UPDATE_QP_VSD              = 1 << 1,
 454         MLX4_UPDATE_QP_RATE_LIMIT       = 1 << 2,
 455         MLX4_UPDATE_QP_QOS_VPORT        = 1 << 3,
 456         MLX4_UPDATE_QP_ETH_SRC_CHECK_MC_LB      = 1 << 4,
 457         MLX4_UPDATE_QP_SUPPORTED_ATTRS  = (1 << 5) - 1
 458 };
 459
 460 enum mlx4_update_qp_params_flags {
 461         MLX4_UPDATE_QP_PARAMS_FLAGS_ETH_CHECK_MC_LB     = 1 << 0,
 462         MLX4_UPDATE_QP_PARAMS_FLAGS_VSD_ENABLE          = 1 << 1,
 463 };
 464
 465 struct mlx4_update_qp_params {
 466         u8      smac_index;
 467         u8      qos_vport;
 468         u32     flags;
 469         u16     rate_unit;
 470         u16     rate_val;
 471 };
 472
 473 struct mlx4_qp *mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn);
 474 int mlx4_update_qp(struct mlx4_dev *dev, u32 qpn,
 475                    enum mlx4_update_qp_attr attr,
 476                    struct mlx4_update_qp_params *params);
 477 int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 478                    enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
 479                    struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
 480                    int sqd_event, struct mlx4_qp *qp);
 481
 482 int mlx4_qp_query(struct mlx4_dev *dev, struct mlx4_qp *qp,
 483                   struct mlx4_qp_context *context);
 484
 485 int mlx4_qp_to_ready(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 486                      struct mlx4_qp_context *context,
 487                      struct mlx4_qp *qp, enum mlx4_qp_state *qp_state);
 488
 489 static inline struct mlx4_qp *__mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn)
 490 {
 491         return radix_tree_lookup(&dev->qp_table_tree, qpn & (dev->caps.num_qps - 1));
 492 }
 493
 494 void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp);
 495
 496 static inline u16 folded_qp(u32 q)
 497 {
 498         u16 res;
 499
 500         res = ((q & 0xff) ^ ((q & 0xff0000) >> 16)) | (q & 0xff00);
 501         return res;
 502 }
 503
 504 u16 mlx4_qp_roce_entropy(struct mlx4_dev *dev, u32 qpn);
 505
 506 #endif /* MLX4_QP_H */