linux/drivers/infiniband/core/cm_msgs.h
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   1/*
   2 * Copyright (c) 2004 Intel Corporation.  All rights reserved.
   3 * Copyright (c) 2004 Topspin Corporation.  All rights reserved.
   4 * Copyright (c) 2004 Voltaire Corporation.  All rights reserved.
   5 *
   6 * This software is available to you under a choice of one of two
   7 * licenses.  You may choose to be licensed under the terms of the GNU
   8 * General Public License (GPL) Version 2, available from the file
   9 * COPYING the madirectory of this source tree, or the
  10 * OpenIB.org BSD license below:
  11 *
  12 *     Redistribution and use source and binary forms, with or
  13 *     withmodification, are permitted provided that the following
  14 *     conditions are met:
  15 *
  16 *      - Redistributions of source code must retathe above
  17 *        copyright notice, this list of conditions and the following
  18 *        disclaimer.
  19 *
  20 *      - Redistributions binary form must reproduce the above
  21 *        copyright notice, this list of conditions and the following
  22 *        disclaimer the documentation and/or other materials
  23 *        provided with the distribution.
  24 *
  25 * THE SOFTWARE IS PROVIDED "AS IS", WITHWARRANTY OF ANY KIND,
  26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 * NONINFRINGEMENT. NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER AN
  30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OF OR IN
  31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS THE
  32 * SOFTWARE.
  33 */
  34#if !defined(CM_MSGS_H)
  35#define CM_MSGS_H
  36
  37#include <rdma/ib_mad.h>
  38#include <rdma/ib_cm.h>
  39
  40/*
  41 * Parameters to routines below should be in network-byte order, and values
  42 * are returned in network-byte order.
  43 */
  44
  45#define IB_CM_CLASS_VERSION     2 /* IB specification 1.2 */
  46
  47#define CM_REQ_ATTR_ID      __constant_htons(0x0010)
  48#define CM_MRA_ATTR_ID      __constant_htons(0x0011)
  49#define CM_REJ_ATTR_ID      __constant_htons(0x0012)
  50#define CM_REP_ATTR_ID      __constant_htons(0x0013)
  51#define CM_RTU_ATTR_ID      __constant_htons(0x0014)
  52#define CM_DREQ_ATTR_ID     __constant_htons(0x0015)
  53#define CM_DREP_ATTR_ID     __constant_htons(0x0016)
  54#define CM_SIDR_REQ_ATTR_ID __constant_htons(0x0017)
  55#define CM_SIDR_REP_ATTR_ID __constant_htons(0x0018)
  56#define CM_LAP_ATTR_ID      __constant_htons(0x0019)
  57#define CM_APR_ATTR_ID      __constant_htons(0x001A)
  58
  59enum cm_msg_sequence {
  60        CM_MSG_SEQUENCE_REQ,
  61        CM_MSG_SEQUENCE_LAP,
  62        CM_MSG_SEQUENCE_DREQ,
  63        CM_MSG_SEQUENCE_SIDR
  64};
  65
  66struct cm_req_msg {
  67        struct ib_mad_hdr hdr;
  68
  69        __be32 local_comm_id;
  70        __be32 rsvd4;
  71        __be64 service_id;
  72        __be64 local_ca_guid;
  73        __be32 rsvd24;
  74        __be32 local_qkey;
  75        /* local QPN:24, responder resources:8 */
  76        __be32 offset32;
  77        /* local EECN:24, initiator depth:8 */
  78        __be32 offset36;
  79        /*
  80         * remote EECN:24, remote CM response timeout:5,
  81         * transport service type:2, end-to-end flow control:1
  82         */
  83        __be32 offset40;
  84        /* starting PSN:24, local CM response timeout:5, retry count:3 */
  85        __be32 offset44;
  86        __be16 pkey;
  87        /* path MTU:4, RDC exists:1, RNR retry count:3. */
  88        u8 offset50;
  89        /* max CM Retries:4, SRQ:1, rsvd:3 */
  90        u8 offset51;
  91
  92        __be16 primary_local_lid;
  93        __be16 primary_remote_lid;
  94        union ib_gid primary_local_gid;
  95        union ib_gid primary_remote_gid;
  96        /* flow label:20, rsvd:6, packet rate:6 */
  97        __be32 primary_offset88;
  98        u8 primary_traffic_class;
  99        u8 primary_hop_limit;
 100        /* SL:4, subnet local:1, rsvd:3 */
 101        u8 primary_offset94;
 102        /* local ACK timeout:5, rsvd:3 */
 103        u8 primary_offset95;
 104
 105        __be16 alt_local_lid;
 106        __be16 alt_remote_lid;
 107        union ib_gid alt_local_gid;
 108        union ib_gid alt_remote_gid;
 109        /* flow label:20, rsvd:6, packet rate:6 */
 110        __be32 alt_offset132;
 111        u8 alt_traffic_class;
 112        u8 alt_hop_limit;
 113        /* SL:4, subnet local:1, rsvd:3 */
 114        u8 alt_offset138;
 115        /* local ACK timeout:5, rsvd:3 */
 116        u8 alt_offset139;
 117
 118        u8 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE];
 119
 120} __attribute__ ((packed));
 121
 122static inline __be32 cm_req_get_local_qpn(struct cm_req_msg *req_msg)
 123{
 124        return cpu_to_be32(be32_to_cpu(req_msg->offset32) >> 8);
 125}
 126
 127static inline void cm_req_set_local_qpn(struct cm_req_msg *req_msg, __be32 qpn)
 128{
 129        req_msg->offset32 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 130                                         (be32_to_cpu(req_msg->offset32) &
 131                                          0x000000FF));
 132}
 133
 134static inline u8 cm_req_get_resp_res(struct cm_req_msg *req_msg)
 135{
 136        return (u8) be32_to_cpu(req_msg->offset32);
 137}
 138
 139static inline void cm_req_set_resp_res(struct cm_req_msg *req_msg, u8 resp_res)
 140{
 141        req_msg->offset32 = cpu_to_be32(resp_res |
 142                                        (be32_to_cpu(req_msg->offset32) &
 143                                         0xFFFFFF00));
 144}
 145
 146static inline u8 cm_req_get_init_depth(struct cm_req_msg *req_msg)
 147{
 148        return (u8) be32_to_cpu(req_msg->offset36);
 149}
 150
 151static inline void cm_req_set_init_depth(struct cm_req_msg *req_msg,
 152                                         u8 init_depth)
 153{
 154        req_msg->offset36 = cpu_to_be32(init_depth |
 155                                        (be32_to_cpu(req_msg->offset36) &
 156                                         0xFFFFFF00));
 157}
 158
 159static inline u8 cm_req_get_remote_resp_timeout(struct cm_req_msg *req_msg)
 160{
 161        return (u8) ((be32_to_cpu(req_msg->offset40) & 0xF8) >> 3);
 162}
 163
 164static inline void cm_req_set_remote_resp_timeout(struct cm_req_msg *req_msg,
 165                                                  u8 resp_timeout)
 166{
 167        req_msg->offset40 = cpu_to_be32((resp_timeout << 3) |
 168                                         (be32_to_cpu(req_msg->offset40) &
 169                                          0xFFFFFF07));
 170}
 171
 172static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg)
 173{
 174        u8 transport_type = (u8) (be32_to_cpu(req_msg->offset40) & 0x06) >> 1;
 175        switch(transport_type) {
 176        case 0: return IB_QPT_RC;
 177        case 1: return IB_QPT_UC;
 178        default: return 0;
 179        }
 180}
 181
 182static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg,
 183                                      enum ib_qp_type qp_type)
 184{
 185        switch(qp_type) {
 186        case IB_QPT_UC:
 187                req_msg->offset40 = cpu_to_be32((be32_to_cpu(
 188                                                  req_msg->offset40) &
 189                                                   0xFFFFFFF9) | 0x2);
 190                break;
 191        default:
 192                req_msg->offset40 = cpu_to_be32(be32_to_cpu(
 193                                                 req_msg->offset40) &
 194                                                  0xFFFFFFF9);
 195        }
 196}
 197
 198static inline u8 cm_req_get_flow_ctrl(struct cm_req_msg *req_msg)
 199{
 200        return be32_to_cpu(req_msg->offset40) & 0x1;
 201}
 202
 203static inline void cm_req_set_flow_ctrl(struct cm_req_msg *req_msg,
 204                                        u8 flow_ctrl)
 205{
 206        req_msg->offset40 = cpu_to_be32((flow_ctrl & 0x1) |
 207                                         (be32_to_cpu(req_msg->offset40) &
 208                                          0xFFFFFFFE));
 209}
 210
 211static inline __be32 cm_req_get_starting_psn(struct cm_req_msg *req_msg)
 212{
 213        return cpu_to_be32(be32_to_cpu(req_msg->offset44) >> 8);
 214}
 215
 216static inline void cm_req_set_starting_psn(struct cm_req_msg *req_msg,
 217                                           __be32 starting_psn)
 218{
 219        req_msg->offset44 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
 220                            (be32_to_cpu(req_msg->offset44) & 0x000000FF));
 221}
 222
 223static inline u8 cm_req_get_local_resp_timeout(struct cm_req_msg *req_msg)
 224{
 225        return (u8) ((be32_to_cpu(req_msg->offset44) & 0xF8) >> 3);
 226}
 227
 228static inline void cm_req_set_local_resp_timeout(struct cm_req_msg *req_msg,
 229                                                 u8 resp_timeout)
 230{
 231        req_msg->offset44 = cpu_to_be32((resp_timeout << 3) |
 232                            (be32_to_cpu(req_msg->offset44) & 0xFFFFFF07));
 233}
 234
 235static inline u8 cm_req_get_retry_count(struct cm_req_msg *req_msg)
 236{
 237        return (u8) (be32_to_cpu(req_msg->offset44) & 0x7);
 238}
 239
 240static inline void cm_req_set_retry_count(struct cm_req_msg *req_msg,
 241                                          u8 retry_count)
 242{
 243        req_msg->offset44 = cpu_to_be32((retry_count & 0x7) |
 244                            (be32_to_cpu(req_msg->offset44) & 0xFFFFFFF8));
 245}
 246
 247static inline u8 cm_req_get_path_mtu(struct cm_req_msg *req_msg)
 248{
 249        return req_msg->offset50 >> 4;
 250}
 251
 252static inline void cm_req_set_path_mtu(struct cm_req_msg *req_msg, u8 path_mtu)
 253{
 254        req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF) | (path_mtu << 4));
 255}
 256
 257static inline u8 cm_req_get_rnr_retry_count(struct cm_req_msg *req_msg)
 258{
 259        return req_msg->offset50 & 0x7;
 260}
 261
 262static inline void cm_req_set_rnr_retry_count(struct cm_req_msg *req_msg,
 263                                              u8 rnr_retry_count)
 264{
 265        req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF8) |
 266                                  (rnr_retry_count & 0x7));
 267}
 268
 269static inline u8 cm_req_get_max_cm_retries(struct cm_req_msg *req_msg)
 270{
 271        return req_msg->offset51 >> 4;
 272}
 273
 274static inline void cm_req_set_max_cm_retries(struct cm_req_msg *req_msg,
 275                                             u8 retries)
 276{
 277        req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF) | (retries << 4));
 278}
 279
 280static inline u8 cm_req_get_srq(struct cm_req_msg *req_msg)
 281{
 282        return (req_msg->offset51 & 0x8) >> 3;
 283}
 284
 285static inline void cm_req_set_srq(struct cm_req_msg *req_msg, u8 srq)
 286{
 287        req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF7) |
 288                                  ((srq & 0x1) << 3));
 289}
 290
 291static inline __be32 cm_req_get_primary_flow_label(struct cm_req_msg *req_msg)
 292{
 293        return cpu_to_be32(be32_to_cpu(req_msg->primary_offset88) >> 12);
 294}
 295
 296static inline void cm_req_set_primary_flow_label(struct cm_req_msg *req_msg,
 297                                                 __be32 flow_label)
 298{
 299        req_msg->primary_offset88 = cpu_to_be32(
 300                                    (be32_to_cpu(req_msg->primary_offset88) &
 301                                     0x00000FFF) |
 302                                     (be32_to_cpu(flow_label) << 12));
 303}
 304
 305static inline u8 cm_req_get_primary_packet_rate(struct cm_req_msg *req_msg)
 306{
 307        return (u8) (be32_to_cpu(req_msg->primary_offset88) & 0x3F);
 308}
 309
 310static inline void cm_req_set_primary_packet_rate(struct cm_req_msg *req_msg,
 311                                                  u8 rate)
 312{
 313        req_msg->primary_offset88 = cpu_to_be32(
 314                                    (be32_to_cpu(req_msg->primary_offset88) &
 315                                     0xFFFFFFC0) | (rate & 0x3F));
 316}
 317
 318static inline u8 cm_req_get_primary_sl(struct cm_req_msg *req_msg)
 319{
 320        return (u8) (req_msg->primary_offset94 >> 4);
 321}
 322
 323static inline void cm_req_set_primary_sl(struct cm_req_msg *req_msg, u8 sl)
 324{
 325        req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0x0F) |
 326                                          (sl << 4));
 327}
 328
 329static inline u8 cm_req_get_primary_subnet_local(struct cm_req_msg *req_msg)
 330{
 331        return (u8) ((req_msg->primary_offset94 & 0x08) >> 3);
 332}
 333
 334static inline void cm_req_set_primary_subnet_local(struct cm_req_msg *req_msg,
 335                                                   u8 subnet_local)
 336{
 337        req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0xF7) |
 338                                          ((subnet_local & 0x1) << 3));
 339}
 340
 341static inline u8 cm_req_get_primary_local_ack_timeout(struct cm_req_msg *req_msg)
 342{
 343        return (u8) (req_msg->primary_offset95 >> 3);
 344}
 345
 346static inline void cm_req_set_primary_local_ack_timeout(struct cm_req_msg *req_msg,
 347                                                        u8 local_ack_timeout)
 348{
 349        req_msg->primary_offset95 = (u8) ((req_msg->primary_offset95 & 0x07) |
 350                                          (local_ack_timeout << 3));
 351}
 352
 353static inline __be32 cm_req_get_alt_flow_label(struct cm_req_msg *req_msg)
 354{
 355        return cpu_to_be32(be32_to_cpu(req_msg->alt_offset132) >> 12);
 356}
 357
 358static inline void cm_req_set_alt_flow_label(struct cm_req_msg *req_msg,
 359                                             __be32 flow_label)
 360{
 361        req_msg->alt_offset132 = cpu_to_be32(
 362                                 (be32_to_cpu(req_msg->alt_offset132) &
 363                                  0x00000FFF) |
 364                                  (be32_to_cpu(flow_label) << 12));
 365}
 366
 367static inline u8 cm_req_get_alt_packet_rate(struct cm_req_msg *req_msg)
 368{
 369        return (u8) (be32_to_cpu(req_msg->alt_offset132) & 0x3F);
 370}
 371
 372static inline void cm_req_set_alt_packet_rate(struct cm_req_msg *req_msg,
 373                                              u8 rate)
 374{
 375        req_msg->alt_offset132 = cpu_to_be32(
 376                                 (be32_to_cpu(req_msg->alt_offset132) &
 377                                  0xFFFFFFC0) | (rate & 0x3F));
 378}
 379
 380static inline u8 cm_req_get_alt_sl(struct cm_req_msg *req_msg)
 381{
 382        return (u8) (req_msg->alt_offset138 >> 4);
 383}
 384
 385static inline void cm_req_set_alt_sl(struct cm_req_msg *req_msg, u8 sl)
 386{
 387        req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0x0F) |
 388                                       (sl << 4));
 389}
 390
 391static inline u8 cm_req_get_alt_subnet_local(struct cm_req_msg *req_msg)
 392{
 393        return (u8) ((req_msg->alt_offset138 & 0x08) >> 3);
 394}
 395
 396static inline void cm_req_set_alt_subnet_local(struct cm_req_msg *req_msg,
 397                                               u8 subnet_local)
 398{
 399        req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0xF7) |
 400                                       ((subnet_local & 0x1) << 3));
 401}
 402
 403static inline u8 cm_req_get_alt_local_ack_timeout(struct cm_req_msg *req_msg)
 404{
 405        return (u8) (req_msg->alt_offset139 >> 3);
 406}
 407
 408static inline void cm_req_set_alt_local_ack_timeout(struct cm_req_msg *req_msg,
 409                                                    u8 local_ack_timeout)
 410{
 411        req_msg->alt_offset139 = (u8) ((req_msg->alt_offset139 & 0x07) |
 412                                       (local_ack_timeout << 3));
 413}
 414
 415/* Message REJected or MRAed */
 416enum cm_msg_response {
 417        CM_MSG_RESPONSE_REQ = 0x0,
 418        CM_MSG_RESPONSE_REP = 0x1,
 419        CM_MSG_RESPONSE_OTHER = 0x2
 420};
 421
 422 struct cm_mra_msg {
 423        struct ib_mad_hdr hdr;
 424
 425        __be32 local_comm_id;
 426        __be32 remote_comm_id;
 427        /* message MRAed:2, rsvd:6 */
 428        u8 offset8;
 429        /* service timeout:5, rsvd:3 */
 430        u8 offset9;
 431
 432        u8 private_data[IB_CM_MRA_PRIVATE_DATA_SIZE];
 433
 434} __attribute__ ((packed));
 435
 436static inline u8 cm_mra_get_msg_mraed(struct cm_mra_msg *mra_msg)
 437{
 438        return (u8) (mra_msg->offset8 >> 6);
 439}
 440
 441static inline void cm_mra_set_msg_mraed(struct cm_mra_msg *mra_msg, u8 msg)
 442{
 443        mra_msg->offset8 = (u8) ((mra_msg->offset8 & 0x3F) | (msg << 6));
 444}
 445
 446static inline u8 cm_mra_get_service_timeout(struct cm_mra_msg *mra_msg)
 447{
 448        return (u8) (mra_msg->offset9 >> 3);
 449}
 450
 451static inline void cm_mra_set_service_timeout(struct cm_mra_msg *mra_msg,
 452                                              u8 service_timeout)
 453{
 454        mra_msg->offset9 = (u8) ((mra_msg->offset9 & 0x07) |
 455                                 (service_timeout << 3));
 456}
 457
 458struct cm_rej_msg {
 459        struct ib_mad_hdr hdr;
 460
 461        __be32 local_comm_id;
 462        __be32 remote_comm_id;
 463        /* message REJected:2, rsvd:6 */
 464        u8 offset8;
 465        /* reject info length:7, rsvd:1. */
 466        u8 offset9;
 467        __be16 reason;
 468        u8 ari[IB_CM_REJ_ARI_LENGTH];
 469
 470        u8 private_data[IB_CM_REJ_PRIVATE_DATA_SIZE];
 471
 472} __attribute__ ((packed));
 473
 474static inline u8 cm_rej_get_msg_rejected(struct cm_rej_msg *rej_msg)
 475{
 476        return (u8) (rej_msg->offset8 >> 6);
 477}
 478
 479static inline void cm_rej_set_msg_rejected(struct cm_rej_msg *rej_msg, u8 msg)
 480{
 481        rej_msg->offset8 = (u8) ((rej_msg->offset8 & 0x3F) | (msg << 6));
 482}
 483
 484static inline u8 cm_rej_get_reject_info_len(struct cm_rej_msg *rej_msg)
 485{
 486        return (u8) (rej_msg->offset9 >> 1);
 487}
 488
 489static inline void cm_rej_set_reject_info_len(struct cm_rej_msg *rej_msg,
 490                                              u8 len)
 491{
 492        rej_msg->offset9 = (u8) ((rej_msg->offset9 & 0x1) | (len << 1));
 493}
 494
 495struct cm_rep_msg {
 496        struct ib_mad_hdr hdr;
 497
 498        __be32 local_comm_id;
 499        __be32 remote_comm_id;
 500        __be32 local_qkey;
 501        /* local QPN:24, rsvd:8 */
 502        __be32 offset12;
 503        /* local EECN:24, rsvd:8 */
 504        __be32 offset16;
 505        /* starting PSN:24 rsvd:8 */
 506        __be32 offset20;
 507        u8 resp_resources;
 508        u8 initiator_depth;
 509        /* target ACK delay:5, failover accepted:2, end-to-end flow control:1 */
 510        u8 offset26;
 511        /* RNR retry count:3, SRQ:1, rsvd:5 */
 512        u8 offset27;
 513        __be64 local_ca_guid;
 514
 515        u8 private_data[IB_CM_REP_PRIVATE_DATA_SIZE];
 516
 517} __attribute__ ((packed));
 518
 519static inline __be32 cm_rep_get_local_qpn(struct cm_rep_msg *rep_msg)
 520{
 521        return cpu_to_be32(be32_to_cpu(rep_msg->offset12) >> 8);
 522}
 523
 524static inline void cm_rep_set_local_qpn(struct cm_rep_msg *rep_msg, __be32 qpn)
 525{
 526        rep_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 527                            (be32_to_cpu(rep_msg->offset12) & 0x000000FF));
 528}
 529
 530static inline __be32 cm_rep_get_starting_psn(struct cm_rep_msg *rep_msg)
 531{
 532        return cpu_to_be32(be32_to_cpu(rep_msg->offset20) >> 8);
 533}
 534
 535static inline void cm_rep_set_starting_psn(struct cm_rep_msg *rep_msg,
 536                                           __be32 starting_psn)
 537{
 538        rep_msg->offset20 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
 539                            (be32_to_cpu(rep_msg->offset20) & 0x000000FF));
 540}
 541
 542static inline u8 cm_rep_get_target_ack_delay(struct cm_rep_msg *rep_msg)
 543{
 544        return (u8) (rep_msg->offset26 >> 3);
 545}
 546
 547static inline void cm_rep_set_target_ack_delay(struct cm_rep_msg *rep_msg,
 548                                               u8 target_ack_delay)
 549{
 550        rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0x07) |
 551                                  (target_ack_delay << 3));
 552}
 553
 554static inline u8 cm_rep_get_failover(struct cm_rep_msg *rep_msg)
 555{
 556        return (u8) ((rep_msg->offset26 & 0x06) >> 1);
 557}
 558
 559static inline void cm_rep_set_failover(struct cm_rep_msg *rep_msg, u8 failover)
 560{
 561        rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xF9) |
 562                                  ((failover & 0x3) << 1));
 563}
 564
 565static inline u8 cm_rep_get_flow_ctrl(struct cm_rep_msg *rep_msg)
 566{
 567        return (u8) (rep_msg->offset26 & 0x01);
 568}
 569
 570static inline void cm_rep_set_flow_ctrl(struct cm_rep_msg *rep_msg,
 571                                            u8 flow_ctrl)
 572{
 573        rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xFE) |
 574                                  (flow_ctrl & 0x1));
 575}
 576
 577static inline u8 cm_rep_get_rnr_retry_count(struct cm_rep_msg *rep_msg)
 578{
 579        return (u8) (rep_msg->offset27 >> 5);
 580}
 581
 582static inline void cm_rep_set_rnr_retry_count(struct cm_rep_msg *rep_msg,
 583                                              u8 rnr_retry_count)
 584{
 585        rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0x1F) |
 586                                  (rnr_retry_count << 5));
 587}
 588
 589static inline u8 cm_rep_get_srq(struct cm_rep_msg *rep_msg)
 590{
 591        return (u8) ((rep_msg->offset27 >> 4) & 0x1);
 592}
 593
 594static inline void cm_rep_set_srq(struct cm_rep_msg *rep_msg, u8 srq)
 595{
 596        rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0xEF) |
 597                                  ((srq & 0x1) << 4));
 598}
 599
 600struct cm_rtu_msg {
 601        struct ib_mad_hdr hdr;
 602
 603        __be32 local_comm_id;
 604        __be32 remote_comm_id;
 605
 606        u8 private_data[IB_CM_RTU_PRIVATE_DATA_SIZE];
 607
 608} __attribute__ ((packed));
 609
 610struct cm_dreq_msg {
 611        struct ib_mad_hdr hdr;
 612
 613        __be32 local_comm_id;
 614        __be32 remote_comm_id;
 615        /* remote QPN/EECN:24, rsvd:8 */
 616        __be32 offset8;
 617
 618        u8 private_data[IB_CM_DREQ_PRIVATE_DATA_SIZE];
 619
 620} __attribute__ ((packed));
 621
 622static inline __be32 cm_dreq_get_remote_qpn(struct cm_dreq_msg *dreq_msg)
 623{
 624        return cpu_to_be32(be32_to_cpu(dreq_msg->offset8) >> 8);
 625}
 626
 627static inline void cm_dreq_set_remote_qpn(struct cm_dreq_msg *dreq_msg, __be32 qpn)
 628{
 629        dreq_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 630                            (be32_to_cpu(dreq_msg->offset8) & 0x000000FF));
 631}
 632
 633struct cm_drep_msg {
 634        struct ib_mad_hdr hdr;
 635
 636        __be32 local_comm_id;
 637        __be32 remote_comm_id;
 638
 639        u8 private_data[IB_CM_DREP_PRIVATE_DATA_SIZE];
 640
 641} __attribute__ ((packed));
 642
 643struct cm_lap_msg {
 644        struct ib_mad_hdr hdr;
 645
 646        __be32 local_comm_id;
 647        __be32 remote_comm_id;
 648
 649        __be32 rsvd8;
 650        /* remote QPN/EECN:24, remote CM response timeout:5, rsvd:3 */
 651        __be32 offset12;
 652        __be32 rsvd16;
 653
 654        __be16 alt_local_lid;
 655        __be16 alt_remote_lid;
 656        union ib_gid alt_local_gid;
 657        union ib_gid alt_remote_gid;
 658        /* flow label:20, rsvd:4, traffic class:8 */
 659        __be32 offset56;
 660        u8 alt_hop_limit;
 661        /* rsvd:2, packet rate:6 */
 662        u8 offset61;
 663        /* SL:4, subnet local:1, rsvd:3 */
 664        u8 offset62;
 665        /* local ACK timeout:5, rsvd:3 */
 666        u8 offset63;
 667
 668        u8 private_data[IB_CM_LAP_PRIVATE_DATA_SIZE];
 669} __attribute__  ((packed));
 670
 671static inline __be32 cm_lap_get_remote_qpn(struct cm_lap_msg *lap_msg)
 672{
 673        return cpu_to_be32(be32_to_cpu(lap_msg->offset12) >> 8);
 674}
 675
 676static inline void cm_lap_set_remote_qpn(struct cm_lap_msg *lap_msg, __be32 qpn)
 677{
 678        lap_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 679                                         (be32_to_cpu(lap_msg->offset12) &
 680                                          0x000000FF));
 681}
 682
 683static inline u8 cm_lap_get_remote_resp_timeout(struct cm_lap_msg *lap_msg)
 684{
 685        return (u8) ((be32_to_cpu(lap_msg->offset12) & 0xF8) >> 3);
 686}
 687
 688static inline void cm_lap_set_remote_resp_timeout(struct cm_lap_msg *lap_msg,
 689                                                  u8 resp_timeout)
 690{
 691        lap_msg->offset12 = cpu_to_be32((resp_timeout << 3) |
 692                                         (be32_to_cpu(lap_msg->offset12) &
 693                                          0xFFFFFF07));
 694}
 695
 696static inline __be32 cm_lap_get_flow_label(struct cm_lap_msg *lap_msg)
 697{
 698        return cpu_to_be32(be32_to_cpu(lap_msg->offset56) >> 12);
 699}
 700
 701static inline void cm_lap_set_flow_label(struct cm_lap_msg *lap_msg,
 702                                         __be32 flow_label)
 703{
 704        lap_msg->offset56 = cpu_to_be32(
 705                                 (be32_to_cpu(lap_msg->offset56) & 0x00000FFF) |
 706                                 (be32_to_cpu(flow_label) << 12));
 707}
 708
 709static inline u8 cm_lap_get_traffic_class(struct cm_lap_msg *lap_msg)
 710{
 711        return (u8) be32_to_cpu(lap_msg->offset56);
 712}
 713
 714static inline void cm_lap_set_traffic_class(struct cm_lap_msg *lap_msg,
 715                                            u8 traffic_class)
 716{
 717        lap_msg->offset56 = cpu_to_be32(traffic_class |
 718                                         (be32_to_cpu(lap_msg->offset56) &
 719                                          0xFFFFFF00));
 720}
 721
 722static inline u8 cm_lap_get_packet_rate(struct cm_lap_msg *lap_msg)
 723{
 724        return lap_msg->offset61 & 0x3F;
 725}
 726
 727static inline void cm_lap_set_packet_rate(struct cm_lap_msg *lap_msg,
 728                                          u8 packet_rate)
 729{
 730        lap_msg->offset61 = (packet_rate & 0x3F) | (lap_msg->offset61 & 0xC0);
 731}
 732
 733static inline u8 cm_lap_get_sl(struct cm_lap_msg *lap_msg)
 734{
 735        return lap_msg->offset62 >> 4;
 736}
 737
 738static inline void cm_lap_set_sl(struct cm_lap_msg *lap_msg, u8 sl)
 739{
 740        lap_msg->offset62 = (sl << 4) | (lap_msg->offset62 & 0x0F);
 741}
 742
 743static inline u8 cm_lap_get_subnet_local(struct cm_lap_msg *lap_msg)
 744{
 745        return (lap_msg->offset62 >> 3) & 0x1;
 746}
 747
 748static inline void cm_lap_set_subnet_local(struct cm_lap_msg *lap_msg,
 749                                           u8 subnet_local)
 750{
 751        lap_msg->offset62 = ((subnet_local & 0x1) << 3) |
 752                             (lap_msg->offset61 & 0xF7);
 753}
 754static inline u8 cm_lap_get_local_ack_timeout(struct cm_lap_msg *lap_msg)
 755{
 756        return lap_msg->offset63 >> 3;
 757}
 758
 759static inline void cm_lap_set_local_ack_timeout(struct cm_lap_msg *lap_msg,
 760                                                u8 local_ack_timeout)
 761{
 762        lap_msg->offset63 = (local_ack_timeout << 3) |
 763                            (lap_msg->offset63 & 0x07);
 764}
 765
 766struct cm_apr_msg {
 767        struct ib_mad_hdr hdr;
 768
 769        __be32 local_comm_id;
 770        __be32 remote_comm_id;
 771
 772        u8 info_length;
 773        u8 ap_status;
 774        u8 info[IB_CM_APR_INFO_LENGTH];
 775
 776        u8 private_data[IB_CM_APR_PRIVATE_DATA_SIZE];
 777} __attribute__ ((packed));
 778
 779struct cm_sidr_req_msg {
 780        struct ib_mad_hdr hdr;
 781
 782        __be32 request_id;
 783        __be16 pkey;
 784        __be16 rsvd;
 785        __be64 service_id;
 786
 787        u8 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE];
 788} __attribute__ ((packed));
 789
 790struct cm_sidr_rep_msg {
 791        struct ib_mad_hdr hdr;
 792
 793        __be32 request_id;
 794        u8 status;
 795        u8 info_length;
 796        __be16 rsvd;
 797        /* QPN:24, rsvd:8 */
 798        __be32 offset8;
 799        __be64 service_id;
 800        __be32 qkey;
 801        u8 info[IB_CM_SIDR_REP_INFO_LENGTH];
 802
 803        u8 private_data[IB_CM_SIDR_REP_PRIVATE_DATA_SIZE];
 804} __attribute__ ((packed));
 805
 806static inline __be32 cm_sidr_rep_get_qpn(struct cm_sidr_rep_msg *sidr_rep_msg)
 807{
 808        return cpu_to_be32(be32_to_cpu(sidr_rep_msg->offset8) >> 8);
 809}
 810
 811static inline void cm_sidr_rep_set_qpn(struct cm_sidr_rep_msg *sidr_rep_msg,
 812                                       __be32 qpn)
 813{
 814        sidr_rep_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 815                                        (be32_to_cpu(sidr_rep_msg->offset8) &
 816                                         0x000000FF));
 817}
 818
 819#endif /* CM_MSGS_H */
 820
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