drivers/infiniband/core/cm_msgs.h

   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
  39 /*
  40  * Parameters to routines below should be in network-byte order, and values
  41  * are returned in network-byte order.
  42  */
  43
  44 #define IB_CM_CLASS_VERSION     2 /* IB specification 1.2 */
  45
  46 #define CM_REQ_ATTR_ID      __constant_htons(0x0010)
  47 #define CM_MRA_ATTR_ID      __constant_htons(0x0011)
  48 #define CM_REJ_ATTR_ID      __constant_htons(0x0012)
  49 #define CM_REP_ATTR_ID      __constant_htons(0x0013)
  50 #define CM_RTU_ATTR_ID      __constant_htons(0x0014)
  51 #define CM_DREQ_ATTR_ID     __constant_htons(0x0015)
  52 #define CM_DREP_ATTR_ID     __constant_htons(0x0016)
  53 #define CM_SIDR_REQ_ATTR_ID __constant_htons(0x0017)
  54 #define CM_SIDR_REP_ATTR_ID __constant_htons(0x0018)
  55 #define CM_LAP_ATTR_ID      __constant_htons(0x0019)
  56 #define CM_APR_ATTR_ID      __constant_htons(0x001A)
  57
  58 enum cm_msg_sequence {
  59         CM_MSG_SEQUENCE_REQ,
  60         CM_MSG_SEQUENCE_LAP,
  61         CM_MSG_SEQUENCE_DREQ,
  62         CM_MSG_SEQUENCE_SIDR
  63 };
  64
  65 struct cm_req_msg {
  66         struct ib_mad_hdr hdr;
  67
  68         __be32 local_comm_id;
  69         __be32 rsvd4;
  70         __be64 service_id;
  71         __be64 local_ca_guid;
  72         __be32 rsvd24;
  73         __be32 local_qkey;
  74         /* local QPN:24, responder resources:8 */
  75         __be32 offset32;
  76         /* local EECN:24, initiator depth:8 */
  77         __be32 offset36;
  78         /*
  79          * remote EECN:24, remote CM response timeout:5,
  80          * transport service type:2, end-to-end flow control:1
  81          */
  82         __be32 offset40;
  83         /* starting PSN:24, local CM response timeout:5, retry count:3 */
  84         __be32 offset44;
  85         __be16 pkey;
  86         /* path MTU:4, RDC exists:1, RNR retry count:3. */
  87         u8 offset50;
  88         /* max CM Retries:4, SRQ:1, rsvd:3 */
  89         u8 offset51;
  90
  91         __be16 primary_local_lid;
  92         __be16 primary_remote_lid;
  93         union ib_gid primary_local_gid;
  94         union ib_gid primary_remote_gid;
  95         /* flow label:20, rsvd:6, packet rate:6 */
  96         __be32 primary_offset88;
  97         u8 primary_traffic_class;
  98         u8 primary_hop_limit;
  99         /* SL:4, subnet local:1, rsvd:3 */
 100         u8 primary_offset94;
 101         /* local ACK timeout:5, rsvd:3 */
 102         u8 primary_offset95;
 103
 104         __be16 alt_local_lid;
 105         __be16 alt_remote_lid;
 106         union ib_gid alt_local_gid;
 107         union ib_gid alt_remote_gid;
 108         /* flow label:20, rsvd:6, packet rate:6 */
 109         __be32 alt_offset132;
 110         u8 alt_traffic_class;
 111         u8 alt_hop_limit;
 112         /* SL:4, subnet local:1, rsvd:3 */
 113         u8 alt_offset138;
 114         /* local ACK timeout:5, rsvd:3 */
 115         u8 alt_offset139;
 116
 117         u8 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE];
 118
 119 } __attribute__ ((packed));
 120
 121 static inline __be32 cm_req_get_local_qpn(struct cm_req_msg *req_msg)
 122 {
 123         return cpu_to_be32(be32_to_cpu(req_msg->offset32) >> 8);
 124 }
 125
 126 static inline void cm_req_set_local_qpn(struct cm_req_msg *req_msg, __be32 qpn)
 127 {
 128         req_msg->offset32 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 129                                          (be32_to_cpu(req_msg->offset32) &
 130                                           0x000000FF));
 131 }
 132
 133 static inline u8 cm_req_get_resp_res(struct cm_req_msg *req_msg)
 134 {
 135         return (u8) be32_to_cpu(req_msg->offset32);
 136 }
 137
 138 static inline void cm_req_set_resp_res(struct cm_req_msg *req_msg, u8 resp_res)
 139 {
 140         req_msg->offset32 = cpu_to_be32(resp_res |
 141                                         (be32_to_cpu(req_msg->offset32) &
 142                                          0xFFFFFF00));
 143 }
 144
 145 static inline u8 cm_req_get_init_depth(struct cm_req_msg *req_msg)
 146 {
 147         return (u8) be32_to_cpu(req_msg->offset36);
 148 }
 149
 150 static inline void cm_req_set_init_depth(struct cm_req_msg *req_msg,
 151                                          u8 init_depth)
 152 {
 153         req_msg->offset36 = cpu_to_be32(init_depth |
 154                                         (be32_to_cpu(req_msg->offset36) &
 155                                          0xFFFFFF00));
 156 }
 157
 158 static inline u8 cm_req_get_remote_resp_timeout(struct cm_req_msg *req_msg)
 159 {
 160         return (u8) ((be32_to_cpu(req_msg->offset40) & 0xF8) >> 3);
 161 }
 162
 163 static inline void cm_req_set_remote_resp_timeout(struct cm_req_msg *req_msg,
 164                                                   u8 resp_timeout)
 165 {
 166         req_msg->offset40 = cpu_to_be32((resp_timeout << 3) |
 167                                          (be32_to_cpu(req_msg->offset40) &
 168                                           0xFFFFFF07));
 169 }
 170
 171 static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg)
 172 {
 173         u8 transport_type = (u8) (be32_to_cpu(req_msg->offset40) & 0x06) >> 1;
 174         switch(transport_type) {
 175         case 0: return IB_QPT_RC;
 176         case 1: return IB_QPT_UC;
 177         default: return 0;
 178         }
 179 }
 180
 181 static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg,
 182                                       enum ib_qp_type qp_type)
 183 {
 184         switch(qp_type) {
 185         case IB_QPT_UC:
 186                 req_msg->offset40 = cpu_to_be32((be32_to_cpu(
 187                                                   req_msg->offset40) &
 188                                                    0xFFFFFFF9) | 0x2);
 189                 break;
 190         default:
 191                 req_msg->offset40 = cpu_to_be32(be32_to_cpu(
 192                                                  req_msg->offset40) &
 193                                                   0xFFFFFFF9);
 194         }
 195 }
 196
 197 static 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
 202 static 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
 210 static 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
 215 static 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
 222 static 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
 227 static 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
 234 static 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
 239 static 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
 246 static inline u8 cm_req_get_path_mtu(struct cm_req_msg *req_msg)
 247 {
 248         return req_msg->offset50 >> 4;
 249 }
 250
 251 static 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
 256 static inline u8 cm_req_get_rnr_retry_count(struct cm_req_msg *req_msg)
 257 {
 258         return req_msg->offset50 & 0x7;
 259 }
 260
 261 static 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
 268 static inline u8 cm_req_get_max_cm_retries(struct cm_req_msg *req_msg)
 269 {
 270         return req_msg->offset51 >> 4;
 271 }
 272
 273 static 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
 279 static inline u8 cm_req_get_srq(struct cm_req_msg *req_msg)
 280 {
 281         return (req_msg->offset51 & 0x8) >> 3;
 282 }
 283
 284 static 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
 290 static 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
 295 static 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
 304 static 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
 309 static 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
 317 static inline u8 cm_req_get_primary_sl(struct cm_req_msg *req_msg)
 318 {
 319         return (u8) (req_msg->primary_offset94 >> 4);
 320 }
 321
 322 static 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
 328 static 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
 333 static 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
 340 static 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
 345 static 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
 352 static 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
 357 static 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
 366 static 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
 371 static 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
 379 static inline u8 cm_req_get_alt_sl(struct cm_req_msg *req_msg)
 380 {
 381         return (u8) (req_msg->alt_offset138 >> 4);
 382 }
 383
 384 static 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
 390 static 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
 395 static 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
 402 static 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
 407 static 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 */
 415 enum 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
 435 static inline u8 cm_mra_get_msg_mraed(struct cm_mra_msg *mra_msg)
 436 {
 437         return (u8) (mra_msg->offset8 >> 6);
 438 }
 439
 440 static 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
 445 static inline u8 cm_mra_get_service_timeout(struct cm_mra_msg *mra_msg)
 446 {
 447         return (u8) (mra_msg->offset9 >> 3);
 448 }
 449
 450 static 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
 457 struct 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
 473 static inline u8 cm_rej_get_msg_rejected(struct cm_rej_msg *rej_msg)
 474 {
 475         return (u8) (rej_msg->offset8 >> 6);
 476 }
 477
 478 static 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
 483 static inline u8 cm_rej_get_reject_info_len(struct cm_rej_msg *rej_msg)
 484 {
 485         return (u8) (rej_msg->offset9 >> 1);
 486 }
 487
 488 static 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
 494 struct 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
 518 static 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
 523 static 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
 529 static inline __be32 cm_rep_get_starting_psn(struct cm_rep_msg *rep_msg)
 530 {
 531         return cpu_to_be32(be32_to_cpu(rep_msg->offset20) >> 8);
 532 }
 533
 534 static inline void cm_rep_set_starting_psn(struct cm_rep_msg *rep_msg,
 535                                            __be32 starting_psn)
 536 {
 537         rep_msg->offset20 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) |
 538                             (be32_to_cpu(rep_msg->offset20) & 0x000000FF));
 539 }
 540
 541 static inline u8 cm_rep_get_target_ack_delay(struct cm_rep_msg *rep_msg)
 542 {
 543         return (u8) (rep_msg->offset26 >> 3);
 544 }
 545
 546 static inline void cm_rep_set_target_ack_delay(struct cm_rep_msg *rep_msg,
 547                                                u8 target_ack_delay)
 548 {
 549         rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0x07) |
 550                                   (target_ack_delay << 3));
 551 }
 552
 553 static inline u8 cm_rep_get_failover(struct cm_rep_msg *rep_msg)
 554 {
 555         return (u8) ((rep_msg->offset26 & 0x06) >> 1);
 556 }
 557
 558 static inline void cm_rep_set_failover(struct cm_rep_msg *rep_msg, u8 failover)
 559 {
 560         rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xF9) |
 561                                   ((failover & 0x3) << 1));
 562 }
 563
 564 static inline u8 cm_rep_get_flow_ctrl(struct cm_rep_msg *rep_msg)
 565 {
 566         return (u8) (rep_msg->offset26 & 0x01);
 567 }
 568
 569 static inline void cm_rep_set_flow_ctrl(struct cm_rep_msg *rep_msg,
 570                                             u8 flow_ctrl)
 571 {
 572         rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xFE) |
 573                                   (flow_ctrl & 0x1));
 574 }
 575
 576 static inline u8 cm_rep_get_rnr_retry_count(struct cm_rep_msg *rep_msg)
 577 {
 578         return (u8) (rep_msg->offset27 >> 5);
 579 }
 580
 581 static inline void cm_rep_set_rnr_retry_count(struct cm_rep_msg *rep_msg,
 582                                               u8 rnr_retry_count)
 583 {
 584         rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0x1F) |
 585                                   (rnr_retry_count << 5));
 586 }
 587
 588 static inline u8 cm_rep_get_srq(struct cm_rep_msg *rep_msg)
 589 {
 590         return (u8) ((rep_msg->offset27 >> 4) & 0x1);
 591 }
 592
 593 static inline void cm_rep_set_srq(struct cm_rep_msg *rep_msg, u8 srq)
 594 {
 595         rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0xEF) |
 596                                   ((srq & 0x1) << 4));
 597 }
 598
 599 struct cm_rtu_msg {
 600         struct ib_mad_hdr hdr;
 601
 602         __be32 local_comm_id;
 603         __be32 remote_comm_id;
 604
 605         u8 private_data[IB_CM_RTU_PRIVATE_DATA_SIZE];
 606
 607 } __attribute__ ((packed));
 608
 609 struct cm_dreq_msg {
 610         struct ib_mad_hdr hdr;
 611
 612         __be32 local_comm_id;
 613         __be32 remote_comm_id;
 614         /* remote QPN/EECN:24, rsvd:8 */
 615         __be32 offset8;
 616
 617         u8 private_data[IB_CM_DREQ_PRIVATE_DATA_SIZE];
 618
 619 } __attribute__ ((packed));
 620
 621 static inline __be32 cm_dreq_get_remote_qpn(struct cm_dreq_msg *dreq_msg)
 622 {
 623         return cpu_to_be32(be32_to_cpu(dreq_msg->offset8) >> 8);
 624 }
 625
 626 static inline void cm_dreq_set_remote_qpn(struct cm_dreq_msg *dreq_msg, __be32 qpn)
 627 {
 628         dreq_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 629                             (be32_to_cpu(dreq_msg->offset8) & 0x000000FF));
 630 }
 631
 632 struct cm_drep_msg {
 633         struct ib_mad_hdr hdr;
 634
 635         __be32 local_comm_id;
 636         __be32 remote_comm_id;
 637
 638         u8 private_data[IB_CM_DREP_PRIVATE_DATA_SIZE];
 639
 640 } __attribute__ ((packed));
 641
 642 struct cm_lap_msg {
 643         struct ib_mad_hdr hdr;
 644
 645         __be32 local_comm_id;
 646         __be32 remote_comm_id;
 647
 648         __be32 rsvd8;
 649         /* remote QPN/EECN:24, remote CM response timeout:5, rsvd:3 */
 650         __be32 offset12;
 651         __be32 rsvd16;
 652
 653         __be16 alt_local_lid;
 654         __be16 alt_remote_lid;
 655         union ib_gid alt_local_gid;
 656         union ib_gid alt_remote_gid;
 657         /* flow label:20, rsvd:4, traffic class:8 */
 658         __be32 offset56;
 659         u8 alt_hop_limit;
 660         /* rsvd:2, packet rate:6 */
 661         u8 offset61;
 662         /* SL:4, subnet local:1, rsvd:3 */
 663         u8 offset62;
 664         /* local ACK timeout:5, rsvd:3 */
 665         u8 offset63;
 666
 667         u8 private_data[IB_CM_LAP_PRIVATE_DATA_SIZE];
 668 } __attribute__  ((packed));
 669
 670 static inline __be32 cm_lap_get_remote_qpn(struct cm_lap_msg *lap_msg)
 671 {
 672         return cpu_to_be32(be32_to_cpu(lap_msg->offset12) >> 8);
 673 }
 674
 675 static inline void cm_lap_set_remote_qpn(struct cm_lap_msg *lap_msg, __be32 qpn)
 676 {
 677         lap_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 678                                          (be32_to_cpu(lap_msg->offset12) &
 679                                           0x000000FF));
 680 }
 681
 682 static inline u8 cm_lap_get_remote_resp_timeout(struct cm_lap_msg *lap_msg)
 683 {
 684         return (u8) ((be32_to_cpu(lap_msg->offset12) & 0xF8) >> 3);
 685 }
 686
 687 static inline void cm_lap_set_remote_resp_timeout(struct cm_lap_msg *lap_msg,
 688                                                   u8 resp_timeout)
 689 {
 690         lap_msg->offset12 = cpu_to_be32((resp_timeout << 3) |
 691                                          (be32_to_cpu(lap_msg->offset12) &
 692                                           0xFFFFFF07));
 693 }
 694
 695 static inline __be32 cm_lap_get_flow_label(struct cm_lap_msg *lap_msg)
 696 {
 697         return cpu_to_be32(be32_to_cpu(lap_msg->offset56) >> 12);
 698 }
 699
 700 static inline void cm_lap_set_flow_label(struct cm_lap_msg *lap_msg,
 701                                          __be32 flow_label)
 702 {
 703         lap_msg->offset56 = cpu_to_be32(
 704                                  (be32_to_cpu(lap_msg->offset56) & 0x00000FFF) |
 705                                  (be32_to_cpu(flow_label) << 12));
 706 }
 707
 708 static inline u8 cm_lap_get_traffic_class(struct cm_lap_msg *lap_msg)
 709 {
 710         return (u8) be32_to_cpu(lap_msg->offset56);
 711 }
 712
 713 static inline void cm_lap_set_traffic_class(struct cm_lap_msg *lap_msg,
 714                                             u8 traffic_class)
 715 {
 716         lap_msg->offset56 = cpu_to_be32(traffic_class |
 717                                          (be32_to_cpu(lap_msg->offset56) &
 718                                           0xFFFFFF00));
 719 }
 720
 721 static inline u8 cm_lap_get_packet_rate(struct cm_lap_msg *lap_msg)
 722 {
 723         return lap_msg->offset61 & 0x3F;
 724 }
 725
 726 static inline void cm_lap_set_packet_rate(struct cm_lap_msg *lap_msg,
 727                                           u8 packet_rate)
 728 {
 729         lap_msg->offset61 = (packet_rate & 0x3F) | (lap_msg->offset61 & 0xC0);
 730 }
 731
 732 static inline u8 cm_lap_get_sl(struct cm_lap_msg *lap_msg)
 733 {
 734         return lap_msg->offset62 >> 4;
 735 }
 736
 737 static inline void cm_lap_set_sl(struct cm_lap_msg *lap_msg, u8 sl)
 738 {
 739         lap_msg->offset62 = (sl << 4) | (lap_msg->offset62 & 0x0F);
 740 }
 741
 742 static inline u8 cm_lap_get_subnet_local(struct cm_lap_msg *lap_msg)
 743 {
 744         return (lap_msg->offset62 >> 3) & 0x1;
 745 }
 746
 747 static inline void cm_lap_set_subnet_local(struct cm_lap_msg *lap_msg,
 748                                            u8 subnet_local)
 749 {
 750         lap_msg->offset62 = ((subnet_local & 0x1) << 3) |
 751                              (lap_msg->offset61 & 0xF7);
 752 }
 753 static inline u8 cm_lap_get_local_ack_timeout(struct cm_lap_msg *lap_msg)
 754 {
 755         return lap_msg->offset63 >> 3;
 756 }
 757
 758 static inline void cm_lap_set_local_ack_timeout(struct cm_lap_msg *lap_msg,
 759                                                 u8 local_ack_timeout)
 760 {
 761         lap_msg->offset63 = (local_ack_timeout << 3) |
 762                             (lap_msg->offset63 & 0x07);
 763 }
 764
 765 struct cm_apr_msg {
 766         struct ib_mad_hdr hdr;
 767
 768         __be32 local_comm_id;
 769         __be32 remote_comm_id;
 770
 771         u8 info_length;
 772         u8 ap_status;
 773         u8 info[IB_CM_APR_INFO_LENGTH];
 774
 775         u8 private_data[IB_CM_APR_PRIVATE_DATA_SIZE];
 776 } __attribute__ ((packed));
 777
 778 struct cm_sidr_req_msg {
 779         struct ib_mad_hdr hdr;
 780
 781         __be32 request_id;
 782         __be16 pkey;
 783         __be16 rsvd;
 784         __be64 service_id;
 785
 786         u8 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE];
 787 } __attribute__ ((packed));
 788
 789 struct cm_sidr_rep_msg {
 790         struct ib_mad_hdr hdr;
 791
 792         __be32 request_id;
 793         u8 status;
 794         u8 info_length;
 795         __be16 rsvd;
 796         /* QPN:24, rsvd:8 */
 797         __be32 offset8;
 798         __be64 service_id;
 799         __be32 qkey;
 800         u8 info[IB_CM_SIDR_REP_INFO_LENGTH];
 801
 802         u8 private_data[IB_CM_SIDR_REP_PRIVATE_DATA_SIZE];
 803 } __attribute__ ((packed));
 804
 805 static inline __be32 cm_sidr_rep_get_qpn(struct cm_sidr_rep_msg *sidr_rep_msg)
 806 {
 807         return cpu_to_be32(be32_to_cpu(sidr_rep_msg->offset8) >> 8);
 808 }
 809
 810 static inline void cm_sidr_rep_set_qpn(struct cm_sidr_rep_msg *sidr_rep_msg,
 811                                        __be32 qpn)
 812 {
 813         sidr_rep_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) |
 814                                         (be32_to_cpu(sidr_rep_msg->offset8) &
 815                                          0x000000FF));
 816 }
 817
 818 #endif /* CM_MSGS_H */