linux/drivers/infiniband/core/cm_msgs.h
<<
>>
Prefs
   1/*
   2 * Copyright (c) 2004, 2011 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
  47enum cm_msg_sequence {
  48        CM_MSG_SEQUENCE_REQ,
  49        CM_MSG_SEQUENCE_LAP,
  50        CM_MSG_SEQUENCE_DREQ,
  51        CM_MSG_SEQUENCE_SIDR
  52};
  53
  54struct cm_req_msg {
  55        struct ib_mad_hdr hdr;
  56
  57        __be32 local_comm_id;
  58        __be32 rsvd4;
  59        __be64 service_id;
  60        __be64 local_ca_guid;
  61        __be32 rsvd24;
  62        __be32 local_qkey;
  63        /* local QPN:24, responder resources:8 */
  64        __be32 offset32;
  65        /* local EECN:24, initiator depth:8 */
  66        __be32 offset36;
  67        /*
  68         * remote EECN:24, remote CM response timeout:5,
  69         * transport service type:2, end-to-end flow control:1
  70         */
  71        __be32 offset40;
  72        /* starting PSN:24, local CM response timeout:5, retry count:3 */
  73        __be32 offset44;
  74        __be16 pkey;
  75        /* path MTU:4, RDC exists:1, RNR retry count:3. */
  76        u8 offset50;
  77        /* max CM Retries:4, SRQ:1, extended transport type:3 */
  78        u8 offset51;
  79
  80        __be16 primary_local_lid;
  81        __be16 primary_remote_lid;
  82        union ib_gid primary_local_gid;
  83        union ib_gid primary_remote_gid;
  84        /* flow label:20, rsvd:6, packet rate:6 */
  85        __be32 primary_offset88;
  86        u8 primary_traffic_class;
  87        u8 primary_hop_limit;
  88        /* SL:4, subnet local:1, rsvd:3 */
  89        u8 primary_offset94;
  90        /* local ACK timeout:5, rsvd:3 */
  91        u8 primary_offset95;
  92
  93        __be16 alt_local_lid;
  94        __be16 alt_remote_lid;
  95        union ib_gid alt_local_gid;
  96        union ib_gid alt_remote_gid;
  97        /* flow label:20, rsvd:6, packet rate:6 */
  98        __be32 alt_offset132;
  99        u8 alt_traffic_class;
 100        u8 alt_hop_limit;
 101        /* SL:4, subnet local:1, rsvd:3 */
 102        u8 alt_offset138;
 103        /* local ACK timeout:5, rsvd:3 */
 104        u8 alt_offset139;
 105
 106        u32 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE / sizeof(u32)];
 107
 108} __attribute__ ((packed));
 109
 110static inline __be32 cm_req_get_local_qpn(struct cm_req_msg *req_msg)
 111{
 112        return cpu_to_be32(be32_to_cpu(req_msg->offset32) >> 8);
 113}
 114
 115static inline void cm_req_set_local_qpn(struct cm_req_msg *req_msg, __be32 qpn)
 116{
 117        req_msg->offset32 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 118                                         (be32_to_cpu(req_msg->offset32) &
 119                                          0x000000FF));
 120}
 121
 122static inline u8 cm_req_get_resp_res(struct cm_req_msg *req_msg)
 123{
 124        return (u8) be32_to_cpu(req_msg->offset32);
 125}
 126
 127static inline void cm_req_set_resp_res(struct cm_req_msg *req_msg, u8 resp_res)
 128{
 129        req_msg->offset32 = cpu_to_be32(resp_res |
 130                                        (be32_to_cpu(req_msg->offset32) &
 131                                         0xFFFFFF00));
 132}
 133
 134static inline u8 cm_req_get_init_depth(struct cm_req_msg *req_msg)
 135{
 136        return (u8) be32_to_cpu(req_msg->offset36);
 137}
 138
 139static inline void cm_req_set_init_depth(struct cm_req_msg *req_msg,
 140                                         u8 init_depth)
 141{
 142        req_msg->offset36 = cpu_to_be32(init_depth |
 143                                        (be32_to_cpu(req_msg->offset36) &
 144                                         0xFFFFFF00));
 145}
 146
 147static inline u8 cm_req_get_remote_resp_timeout(struct cm_req_msg *req_msg)
 148{
 149        return (u8) ((be32_to_cpu(req_msg->offset40) & 0xF8) >> 3);
 150}
 151
 152static inline void cm_req_set_remote_resp_timeout(struct cm_req_msg *req_msg,
 153                                                  u8 resp_timeout)
 154{
 155        req_msg->offset40 = cpu_to_be32((resp_timeout << 3) |
 156                                         (be32_to_cpu(req_msg->offset40) &
 157                                          0xFFFFFF07));
 158}
 159
 160static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg)
 161{
 162        u8 transport_type = (u8) (be32_to_cpu(req_msg->offset40) & 0x06) >> 1;
 163        switch(transport_type) {
 164        case 0: return IB_QPT_RC;
 165        case 1: return IB_QPT_UC;
 166        case 3:
 167                switch (req_msg->offset51 & 0x7) {
 168                case 1: return IB_QPT_XRC_TGT;
 169                default: return 0;
 170                }
 171        default: return 0;
 172        }
 173}
 174
 175static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg,
 176                                      enum ib_qp_type qp_type)
 177{
 178        switch(qp_type) {
 179        case IB_QPT_UC:
 180                req_msg->offset40 = cpu_to_be32((be32_to_cpu(
 181                                                  req_msg->offset40) &
 182                                                   0xFFFFFFF9) | 0x2);
 183                break;
 184        case IB_QPT_XRC_INI:
 185                req_msg->offset40 = cpu_to_be32((be32_to_cpu(
 186                                                 req_msg->offset40) &
 187                                                   0xFFFFFFF9) | 0x6);
 188                req_msg->offset51 = (req_msg->offset51 & 0xF8) | 1;
 189                break;
 190        default:
 191                req_msg->offset40 = cpu_to_be32(be32_to_cpu(
 192                                                 req_msg->offset40) &
 193                                                  0xFFFFFFF9);
 194        }
 195}
 196
 197static inline u8 cm_req_get_flow_ctrl(struct cm_req_msg *req_msg)
 198{
 199        return be32_to_cpu(req_msg->offset40) & 0x1;
 200}
 201
 202static inline void cm_req_set_flow_ctrl(struct cm_req_msg *req_msg,
 203                                        u8 flow_ctrl)
 204{
 205        req_msg->offset40 = cpu_to_be32((flow_ctrl & 0x1) |
 206                                         (be32_to_cpu(req_msg->offset40) &
 207                                          0xFFFFFFFE));
 208}
 209
 210static inline __be32 cm_req_get_starting_psn(struct cm_req_msg *req_msg)
 211{
 212        return cpu_to_be32(be32_to_cpu(req_msg->offset44) >> 8);
 213}
 214
 215static inline void cm_req_set_starting_psn(struct cm_req_msg *req_msg,
 216                                           __be32 starting_psn)
 217{
 218        req_msg->offset44 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
 219                            (be32_to_cpu(req_msg->offset44) & 0x000000FF));
 220}
 221
 222static inline u8 cm_req_get_local_resp_timeout(struct cm_req_msg *req_msg)
 223{
 224        return (u8) ((be32_to_cpu(req_msg->offset44) & 0xF8) >> 3);
 225}
 226
 227static inline void cm_req_set_local_resp_timeout(struct cm_req_msg *req_msg,
 228                                                 u8 resp_timeout)
 229{
 230        req_msg->offset44 = cpu_to_be32((resp_timeout << 3) |
 231                            (be32_to_cpu(req_msg->offset44) & 0xFFFFFF07));
 232}
 233
 234static inline u8 cm_req_get_retry_count(struct cm_req_msg *req_msg)
 235{
 236        return (u8) (be32_to_cpu(req_msg->offset44) & 0x7);
 237}
 238
 239static inline void cm_req_set_retry_count(struct cm_req_msg *req_msg,
 240                                          u8 retry_count)
 241{
 242        req_msg->offset44 = cpu_to_be32((retry_count & 0x7) |
 243                            (be32_to_cpu(req_msg->offset44) & 0xFFFFFFF8));
 244}
 245
 246static inline u8 cm_req_get_path_mtu(struct cm_req_msg *req_msg)
 247{
 248        return req_msg->offset50 >> 4;
 249}
 250
 251static inline void cm_req_set_path_mtu(struct cm_req_msg *req_msg, u8 path_mtu)
 252{
 253        req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF) | (path_mtu << 4));
 254}
 255
 256static inline u8 cm_req_get_rnr_retry_count(struct cm_req_msg *req_msg)
 257{
 258        return req_msg->offset50 & 0x7;
 259}
 260
 261static inline void cm_req_set_rnr_retry_count(struct cm_req_msg *req_msg,
 262                                              u8 rnr_retry_count)
 263{
 264        req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF8) |
 265                                  (rnr_retry_count & 0x7));
 266}
 267
 268static inline u8 cm_req_get_max_cm_retries(struct cm_req_msg *req_msg)
 269{
 270        return req_msg->offset51 >> 4;
 271}
 272
 273static inline void cm_req_set_max_cm_retries(struct cm_req_msg *req_msg,
 274                                             u8 retries)
 275{
 276        req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF) | (retries << 4));
 277}
 278
 279static inline u8 cm_req_get_srq(struct cm_req_msg *req_msg)
 280{
 281        return (req_msg->offset51 & 0x8) >> 3;
 282}
 283
 284static inline void cm_req_set_srq(struct cm_req_msg *req_msg, u8 srq)
 285{
 286        req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF7) |
 287                                  ((srq & 0x1) << 3));
 288}
 289
 290static inline __be32 cm_req_get_primary_flow_label(struct cm_req_msg *req_msg)
 291{
 292        return cpu_to_be32(be32_to_cpu(req_msg->primary_offset88) >> 12);
 293}
 294
 295static inline void cm_req_set_primary_flow_label(struct cm_req_msg *req_msg,
 296                                                 __be32 flow_label)
 297{
 298        req_msg->primary_offset88 = cpu_to_be32(
 299                                    (be32_to_cpu(req_msg->primary_offset88) &
 300                                     0x00000FFF) |
 301                                     (be32_to_cpu(flow_label) << 12));
 302}
 303
 304static inline u8 cm_req_get_primary_packet_rate(struct cm_req_msg *req_msg)
 305{
 306        return (u8) (be32_to_cpu(req_msg->primary_offset88) & 0x3F);
 307}
 308
 309static inline void cm_req_set_primary_packet_rate(struct cm_req_msg *req_msg,
 310                                                  u8 rate)
 311{
 312        req_msg->primary_offset88 = cpu_to_be32(
 313                                    (be32_to_cpu(req_msg->primary_offset88) &
 314                                     0xFFFFFFC0) | (rate & 0x3F));
 315}
 316
 317static inline u8 cm_req_get_primary_sl(struct cm_req_msg *req_msg)
 318{
 319        return (u8) (req_msg->primary_offset94 >> 4);
 320}
 321
 322static inline void cm_req_set_primary_sl(struct cm_req_msg *req_msg, u8 sl)
 323{
 324        req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0x0F) |
 325                                          (sl << 4));
 326}
 327
 328static inline u8 cm_req_get_primary_subnet_local(struct cm_req_msg *req_msg)
 329{
 330        return (u8) ((req_msg->primary_offset94 & 0x08) >> 3);
 331}
 332
 333static inline void cm_req_set_primary_subnet_local(struct cm_req_msg *req_msg,
 334                                                   u8 subnet_local)
 335{
 336        req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0xF7) |
 337                                          ((subnet_local & 0x1) << 3));
 338}
 339
 340static inline u8 cm_req_get_primary_local_ack_timeout(struct cm_req_msg *req_msg)
 341{
 342        return (u8) (req_msg->primary_offset95 >> 3);
 343}
 344
 345static inline void cm_req_set_primary_local_ack_timeout(struct cm_req_msg *req_msg,
 346                                                        u8 local_ack_timeout)
 347{
 348        req_msg->primary_offset95 = (u8) ((req_msg->primary_offset95 & 0x07) |
 349                                          (local_ack_timeout << 3));
 350}
 351
 352static inline __be32 cm_req_get_alt_flow_label(struct cm_req_msg *req_msg)
 353{
 354        return cpu_to_be32(be32_to_cpu(req_msg->alt_offset132) >> 12);
 355}
 356
 357static inline void cm_req_set_alt_flow_label(struct cm_req_msg *req_msg,
 358                                             __be32 flow_label)
 359{
 360        req_msg->alt_offset132 = cpu_to_be32(
 361                                 (be32_to_cpu(req_msg->alt_offset132) &
 362                                  0x00000FFF) |
 363                                  (be32_to_cpu(flow_label) << 12));
 364}
 365
 366static inline u8 cm_req_get_alt_packet_rate(struct cm_req_msg *req_msg)
 367{
 368        return (u8) (be32_to_cpu(req_msg->alt_offset132) & 0x3F);
 369}
 370
 371static inline void cm_req_set_alt_packet_rate(struct cm_req_msg *req_msg,
 372                                              u8 rate)
 373{
 374        req_msg->alt_offset132 = cpu_to_be32(
 375                                 (be32_to_cpu(req_msg->alt_offset132) &
 376                                  0xFFFFFFC0) | (rate & 0x3F));
 377}
 378
 379static inline u8 cm_req_get_alt_sl(struct cm_req_msg *req_msg)
 380{
 381        return (u8) (req_msg->alt_offset138 >> 4);
 382}
 383
 384static inline void cm_req_set_alt_sl(struct cm_req_msg *req_msg, u8 sl)
 385{
 386        req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0x0F) |
 387                                       (sl << 4));
 388}
 389
 390static inline u8 cm_req_get_alt_subnet_local(struct cm_req_msg *req_msg)
 391{
 392        return (u8) ((req_msg->alt_offset138 & 0x08) >> 3);
 393}
 394
 395static inline void cm_req_set_alt_subnet_local(struct cm_req_msg *req_msg,
 396                                               u8 subnet_local)
 397{
 398        req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0xF7) |
 399                                       ((subnet_local & 0x1) << 3));
 400}
 401
 402static inline u8 cm_req_get_alt_local_ack_timeout(struct cm_req_msg *req_msg)
 403{
 404        return (u8) (req_msg->alt_offset139 >> 3);
 405}
 406
 407static inline void cm_req_set_alt_local_ack_timeout(struct cm_req_msg *req_msg,
 408                                                    u8 local_ack_timeout)
 409{
 410        req_msg->alt_offset139 = (u8) ((req_msg->alt_offset139 & 0x07) |
 411                                       (local_ack_timeout << 3));
 412}
 413
 414/* Message REJected or MRAed */
 415enum cm_msg_response {
 416        CM_MSG_RESPONSE_REQ = 0x0,
 417        CM_MSG_RESPONSE_REP = 0x1,
 418        CM_MSG_RESPONSE_OTHER = 0x2
 419};
 420
 421 struct cm_mra_msg {
 422        struct ib_mad_hdr hdr;
 423
 424        __be32 local_comm_id;
 425        __be32 remote_comm_id;
 426        /* message MRAed:2, rsvd:6 */
 427        u8 offset8;
 428        /* service timeout:5, rsvd:3 */
 429        u8 offset9;
 430
 431        u8 private_data[IB_CM_MRA_PRIVATE_DATA_SIZE];
 432
 433} __attribute__ ((packed));
 434
 435static inline u8 cm_mra_get_msg_mraed(struct cm_mra_msg *mra_msg)
 436{
 437        return (u8) (mra_msg->offset8 >> 6);
 438}
 439
 440static inline void cm_mra_set_msg_mraed(struct cm_mra_msg *mra_msg, u8 msg)
 441{
 442        mra_msg->offset8 = (u8) ((mra_msg->offset8 & 0x3F) | (msg << 6));
 443}
 444
 445static inline u8 cm_mra_get_service_timeout(struct cm_mra_msg *mra_msg)
 446{
 447        return (u8) (mra_msg->offset9 >> 3);
 448}
 449
 450static inline void cm_mra_set_service_timeout(struct cm_mra_msg *mra_msg,
 451                                              u8 service_timeout)
 452{
 453        mra_msg->offset9 = (u8) ((mra_msg->offset9 & 0x07) |
 454                                 (service_timeout << 3));
 455}
 456
 457struct cm_rej_msg {
 458        struct ib_mad_hdr hdr;
 459
 460        __be32 local_comm_id;
 461        __be32 remote_comm_id;
 462        /* message REJected:2, rsvd:6 */
 463        u8 offset8;
 464        /* reject info length:7, rsvd:1. */
 465        u8 offset9;
 466        __be16 reason;
 467        u8 ari[IB_CM_REJ_ARI_LENGTH];
 468
 469        u8 private_data[IB_CM_REJ_PRIVATE_DATA_SIZE];
 470
 471} __attribute__ ((packed));
 472
 473static inline u8 cm_rej_get_msg_rejected(struct cm_rej_msg *rej_msg)
 474{
 475        return (u8) (rej_msg->offset8 >> 6);
 476}
 477
 478static inline void cm_rej_set_msg_rejected(struct cm_rej_msg *rej_msg, u8 msg)
 479{
 480        rej_msg->offset8 = (u8) ((rej_msg->offset8 & 0x3F) | (msg << 6));
 481}
 482
 483static inline u8 cm_rej_get_reject_info_len(struct cm_rej_msg *rej_msg)
 484{
 485        return (u8) (rej_msg->offset9 >> 1);
 486}
 487
 488static inline void cm_rej_set_reject_info_len(struct cm_rej_msg *rej_msg,
 489                                              u8 len)
 490{
 491        rej_msg->offset9 = (u8) ((rej_msg->offset9 & 0x1) | (len << 1));
 492}
 493
 494struct cm_rep_msg {
 495        struct ib_mad_hdr hdr;
 496
 497        __be32 local_comm_id;
 498        __be32 remote_comm_id;
 499        __be32 local_qkey;
 500        /* local QPN:24, rsvd:8 */
 501        __be32 offset12;
 502        /* local EECN:24, rsvd:8 */
 503        __be32 offset16;
 504        /* starting PSN:24 rsvd:8 */
 505        __be32 offset20;
 506        u8 resp_resources;
 507        u8 initiator_depth;
 508        /* target ACK delay:5, failover accepted:2, end-to-end flow control:1 */
 509        u8 offset26;
 510        /* RNR retry count:3, SRQ:1, rsvd:5 */
 511        u8 offset27;
 512        __be64 local_ca_guid;
 513
 514        u8 private_data[IB_CM_REP_PRIVATE_DATA_SIZE];
 515
 516} __attribute__ ((packed));
 517
 518static inline __be32 cm_rep_get_local_qpn(struct cm_rep_msg *rep_msg)
 519{
 520        return cpu_to_be32(be32_to_cpu(rep_msg->offset12) >> 8);
 521}
 522
 523static inline void cm_rep_set_local_qpn(struct cm_rep_msg *rep_msg, __be32 qpn)
 524{
 525        rep_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 526                            (be32_to_cpu(rep_msg->offset12) & 0x000000FF));
 527}
 528
 529static inline __be32 cm_rep_get_local_eecn(struct cm_rep_msg *rep_msg)
 530{
 531        return cpu_to_be32(be32_to_cpu(rep_msg->offset16) >> 8);
 532}
 533
 534static inline void cm_rep_set_local_eecn(struct cm_rep_msg *rep_msg, __be32 eecn)
 535{
 536        rep_msg->offset16 = cpu_to_be32((be32_to_cpu(eecn) << 8) |
 537                            (be32_to_cpu(rep_msg->offset16) & 0x000000FF));
 538}
 539
 540static inline __be32 cm_rep_get_qpn(struct cm_rep_msg *rep_msg, enum ib_qp_type qp_type)
 541{
 542        return (qp_type == IB_QPT_XRC_INI) ?
 543                cm_rep_get_local_eecn(rep_msg) : cm_rep_get_local_qpn(rep_msg);
 544}
 545
 546static inline __be32 cm_rep_get_starting_psn(struct cm_rep_msg *rep_msg)
 547{
 548        return cpu_to_be32(be32_to_cpu(rep_msg->offset20) >> 8);
 549}
 550
 551static inline void cm_rep_set_starting_psn(struct cm_rep_msg *rep_msg,
 552                                           __be32 starting_psn)
 553{
 554        rep_msg->offset20 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
 555                            (be32_to_cpu(rep_msg->offset20) & 0x000000FF));
 556}
 557
 558static inline u8 cm_rep_get_target_ack_delay(struct cm_rep_msg *rep_msg)
 559{
 560        return (u8) (rep_msg->offset26 >> 3);
 561}
 562
 563static inline void cm_rep_set_target_ack_delay(struct cm_rep_msg *rep_msg,
 564                                               u8 target_ack_delay)
 565{
 566        rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0x07) |
 567                                  (target_ack_delay << 3));
 568}
 569
 570static inline u8 cm_rep_get_failover(struct cm_rep_msg *rep_msg)
 571{
 572        return (u8) ((rep_msg->offset26 & 0x06) >> 1);
 573}
 574
 575static inline void cm_rep_set_failover(struct cm_rep_msg *rep_msg, u8 failover)
 576{
 577        rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xF9) |
 578                                  ((failover & 0x3) << 1));
 579}
 580
 581static inline u8 cm_rep_get_flow_ctrl(struct cm_rep_msg *rep_msg)
 582{
 583        return (u8) (rep_msg->offset26 & 0x01);
 584}
 585
 586static inline void cm_rep_set_flow_ctrl(struct cm_rep_msg *rep_msg,
 587                                            u8 flow_ctrl)
 588{
 589        rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xFE) |
 590                                  (flow_ctrl & 0x1));
 591}
 592
 593static inline u8 cm_rep_get_rnr_retry_count(struct cm_rep_msg *rep_msg)
 594{
 595        return (u8) (rep_msg->offset27 >> 5);
 596}
 597
 598static inline void cm_rep_set_rnr_retry_count(struct cm_rep_msg *rep_msg,
 599                                              u8 rnr_retry_count)
 600{
 601        rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0x1F) |
 602                                  (rnr_retry_count << 5));
 603}
 604
 605static inline u8 cm_rep_get_srq(struct cm_rep_msg *rep_msg)
 606{
 607        return (u8) ((rep_msg->offset27 >> 4) & 0x1);
 608}
 609
 610static inline void cm_rep_set_srq(struct cm_rep_msg *rep_msg, u8 srq)
 611{
 612        rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0xEF) |
 613                                  ((srq & 0x1) << 4));
 614}
 615
 616struct cm_rtu_msg {
 617        struct ib_mad_hdr hdr;
 618
 619        __be32 local_comm_id;
 620        __be32 remote_comm_id;
 621
 622        u8 private_data[IB_CM_RTU_PRIVATE_DATA_SIZE];
 623
 624} __attribute__ ((packed));
 625
 626struct cm_dreq_msg {
 627        struct ib_mad_hdr hdr;
 628
 629        __be32 local_comm_id;
 630        __be32 remote_comm_id;
 631        /* remote QPN/EECN:24, rsvd:8 */
 632        __be32 offset8;
 633
 634        u8 private_data[IB_CM_DREQ_PRIVATE_DATA_SIZE];
 635
 636} __attribute__ ((packed));
 637
 638static inline __be32 cm_dreq_get_remote_qpn(struct cm_dreq_msg *dreq_msg)
 639{
 640        return cpu_to_be32(be32_to_cpu(dreq_msg->offset8) >> 8);
 641}
 642
 643static inline void cm_dreq_set_remote_qpn(struct cm_dreq_msg *dreq_msg, __be32 qpn)
 644{
 645        dreq_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 646                            (be32_to_cpu(dreq_msg->offset8) & 0x000000FF));
 647}
 648
 649struct cm_drep_msg {
 650        struct ib_mad_hdr hdr;
 651
 652        __be32 local_comm_id;
 653        __be32 remote_comm_id;
 654
 655        u8 private_data[IB_CM_DREP_PRIVATE_DATA_SIZE];
 656
 657} __attribute__ ((packed));
 658
 659struct cm_lap_msg {
 660        struct ib_mad_hdr hdr;
 661
 662        __be32 local_comm_id;
 663        __be32 remote_comm_id;
 664
 665        __be32 rsvd8;
 666        /* remote QPN/EECN:24, remote CM response timeout:5, rsvd:3 */
 667        __be32 offset12;
 668        __be32 rsvd16;
 669
 670        __be16 alt_local_lid;
 671        __be16 alt_remote_lid;
 672        union ib_gid alt_local_gid;
 673        union ib_gid alt_remote_gid;
 674        /* flow label:20, rsvd:4, traffic class:8 */
 675        __be32 offset56;
 676        u8 alt_hop_limit;
 677        /* rsvd:2, packet rate:6 */
 678        u8 offset61;
 679        /* SL:4, subnet local:1, rsvd:3 */
 680        u8 offset62;
 681        /* local ACK timeout:5, rsvd:3 */
 682        u8 offset63;
 683
 684        u8 private_data[IB_CM_LAP_PRIVATE_DATA_SIZE];
 685} __attribute__  ((packed));
 686
 687static inline __be32 cm_lap_get_remote_qpn(struct cm_lap_msg *lap_msg)
 688{
 689        return cpu_to_be32(be32_to_cpu(lap_msg->offset12) >> 8);
 690}
 691
 692static inline void cm_lap_set_remote_qpn(struct cm_lap_msg *lap_msg, __be32 qpn)
 693{
 694        lap_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 695                                         (be32_to_cpu(lap_msg->offset12) &
 696                                          0x000000FF));
 697}
 698
 699static inline u8 cm_lap_get_remote_resp_timeout(struct cm_lap_msg *lap_msg)
 700{
 701        return (u8) ((be32_to_cpu(lap_msg->offset12) & 0xF8) >> 3);
 702}
 703
 704static inline void cm_lap_set_remote_resp_timeout(struct cm_lap_msg *lap_msg,
 705                                                  u8 resp_timeout)
 706{
 707        lap_msg->offset12 = cpu_to_be32((resp_timeout << 3) |
 708                                         (be32_to_cpu(lap_msg->offset12) &
 709                                          0xFFFFFF07));
 710}
 711
 712static inline __be32 cm_lap_get_flow_label(struct cm_lap_msg *lap_msg)
 713{
 714        return cpu_to_be32(be32_to_cpu(lap_msg->offset56) >> 12);
 715}
 716
 717static inline void cm_lap_set_flow_label(struct cm_lap_msg *lap_msg,
 718                                         __be32 flow_label)
 719{
 720        lap_msg->offset56 = cpu_to_be32(
 721                                 (be32_to_cpu(lap_msg->offset56) & 0x00000FFF) |
 722                                 (be32_to_cpu(flow_label) << 12));
 723}
 724
 725static inline u8 cm_lap_get_traffic_class(struct cm_lap_msg *lap_msg)
 726{
 727        return (u8) be32_to_cpu(lap_msg->offset56);
 728}
 729
 730static inline void cm_lap_set_traffic_class(struct cm_lap_msg *lap_msg,
 731                                            u8 traffic_class)
 732{
 733        lap_msg->offset56 = cpu_to_be32(traffic_class |
 734                                         (be32_to_cpu(lap_msg->offset56) &
 735                                          0xFFFFFF00));
 736}
 737
 738static inline u8 cm_lap_get_packet_rate(struct cm_lap_msg *lap_msg)
 739{
 740        return lap_msg->offset61 & 0x3F;
 741}
 742
 743static inline void cm_lap_set_packet_rate(struct cm_lap_msg *lap_msg,
 744                                          u8 packet_rate)
 745{
 746        lap_msg->offset61 = (packet_rate & 0x3F) | (lap_msg->offset61 & 0xC0);
 747}
 748
 749static inline u8 cm_lap_get_sl(struct cm_lap_msg *lap_msg)
 750{
 751        return lap_msg->offset62 >> 4;
 752}
 753
 754static inline void cm_lap_set_sl(struct cm_lap_msg *lap_msg, u8 sl)
 755{
 756        lap_msg->offset62 = (sl << 4) | (lap_msg->offset62 & 0x0F);
 757}
 758
 759static inline u8 cm_lap_get_subnet_local(struct cm_lap_msg *lap_msg)
 760{
 761        return (lap_msg->offset62 >> 3) & 0x1;
 762}
 763
 764static inline void cm_lap_set_subnet_local(struct cm_lap_msg *lap_msg,
 765                                           u8 subnet_local)
 766{
 767        lap_msg->offset62 = ((subnet_local & 0x1) << 3) |
 768                             (lap_msg->offset61 & 0xF7);
 769}
 770static inline u8 cm_lap_get_local_ack_timeout(struct cm_lap_msg *lap_msg)
 771{
 772        return lap_msg->offset63 >> 3;
 773}
 774
 775static inline void cm_lap_set_local_ack_timeout(struct cm_lap_msg *lap_msg,
 776                                                u8 local_ack_timeout)
 777{
 778        lap_msg->offset63 = (local_ack_timeout << 3) |
 779                            (lap_msg->offset63 & 0x07);
 780}
 781
 782struct cm_apr_msg {
 783        struct ib_mad_hdr hdr;
 784
 785        __be32 local_comm_id;
 786        __be32 remote_comm_id;
 787
 788        u8 info_length;
 789        u8 ap_status;
 790        __be16 rsvd;
 791        u8 info[IB_CM_APR_INFO_LENGTH];
 792
 793        u8 private_data[IB_CM_APR_PRIVATE_DATA_SIZE];
 794} __attribute__ ((packed));
 795
 796struct cm_sidr_req_msg {
 797        struct ib_mad_hdr hdr;
 798
 799        __be32 request_id;
 800        __be16 pkey;
 801        __be16 rsvd;
 802        __be64 service_id;
 803
 804        u32 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE / sizeof(u32)];
 805} __attribute__ ((packed));
 806
 807struct cm_sidr_rep_msg {
 808        struct ib_mad_hdr hdr;
 809
 810        __be32 request_id;
 811        u8 status;
 812        u8 info_length;
 813        __be16 rsvd;
 814        /* QPN:24, rsvd:8 */
 815        __be32 offset8;
 816        __be64 service_id;
 817        __be32 qkey;
 818        u8 info[IB_CM_SIDR_REP_INFO_LENGTH];
 819
 820        u8 private_data[IB_CM_SIDR_REP_PRIVATE_DATA_SIZE];
 821} __attribute__ ((packed));
 822
 823static inline __be32 cm_sidr_rep_get_qpn(struct cm_sidr_rep_msg *sidr_rep_msg)
 824{
 825        return cpu_to_be32(be32_to_cpu(sidr_rep_msg->offset8) >> 8);
 826}
 827
 828static inline void cm_sidr_rep_set_qpn(struct cm_sidr_rep_msg *sidr_rep_msg,
 829                                       __be32 qpn)
 830{
 831        sidr_rep_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 832                                        (be32_to_cpu(sidr_rep_msg->offset8) &
 833                                         0x000000FF));
 834}
 835
 836#endif /* CM_MSGS_H */
 837