1/*- 2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 3 * 4 * Copyright (c) 2004, 2011 Intel Corporation. All rights reserved. 5 * Copyright (c) 2004 Topspin Corporation. All rights reserved. 6 * Copyright (c) 2004 Voltaire Corporation. All rights reserved. 7 * 8 * This software is available to you under a choice of one of two 9 * licenses. You may choose to be licensed under the terms of the GNU 10 * General Public License (GPL) Version 2, available from the file 11 * COPYING the madirectory of this source tree, or the 12 * OpenIB.org BSD license below: 13 * 14 * Redistribution and use source and binary forms, with or 15 * withmodification, are permitted provided that the following 16 * conditions are met: 17 * 18 * - Redistributions of source code must retathe above 19 * copyright notice, this list of conditions and the following 20 * disclaimer. 21 * 22 * - Redistributions binary form must reproduce the above 23 * copyright notice, this list of conditions and the following 24 * disclaimer the documentation and/or other materials 25 * provided with the distribution. 26 * 27 * THE SOFTWARE IS PROVIDED "AS IS", WITHWARRANTY OF ANY KIND, 28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 30 * NONINFRINGEMENT. NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER AN 32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OF OR IN 33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS THE 34 * SOFTWARE. 35 * 36 * $FreeBSD$ 37 */ 38 39#if !defined(CM_MSGS_H) 40#define CM_MSGS_H 41 42#include <rdma/ib_mad.h> 43#include <rdma/ib_cm.h> 44 45/* 46 * Parameters to routines below should be in network-byte order, and values 47 * are returned in network-byte order. 48 */ 49 50#define IB_CM_CLASS_VERSION 2 /* IB specification 1.2 */ 51 52enum cm_msg_sequence { 53 CM_MSG_SEQUENCE_REQ, 54 CM_MSG_SEQUENCE_LAP, 55 CM_MSG_SEQUENCE_DREQ, 56 CM_MSG_SEQUENCE_SIDR 57}; 58 59struct cm_req_msg { 60 struct ib_mad_hdr hdr; 61 62 __be32 local_comm_id; 63 __be32 rsvd4; 64 __be64 service_id; 65 __be64 local_ca_guid; 66 __be32 rsvd24; 67 __be32 local_qkey; 68 /* local QPN:24, responder resources:8 */ 69 __be32 offset32; 70 /* local EECN:24, initiator depth:8 */ 71 __be32 offset36; 72 /* 73 * remote EECN:24, remote CM response timeout:5, 74 * transport service type:2, end-to-end flow control:1 75 */ 76 __be32 offset40; 77 /* starting PSN:24, local CM response timeout:5, retry count:3 */ 78 __be32 offset44; 79 __be16 pkey; 80 /* path MTU:4, RDC exists:1, RNR retry count:3. */ 81 u8 offset50; 82 /* max CM Retries:4, SRQ:1, extended transport type:3 */ 83 u8 offset51; 84 85 __be16 primary_local_lid; 86 __be16 primary_remote_lid; 87 union ib_gid primary_local_gid; 88 union ib_gid primary_remote_gid; 89 /* flow label:20, rsvd:6, packet rate:6 */ 90 __be32 primary_offset88; 91 u8 primary_traffic_class; 92 u8 primary_hop_limit; 93 /* SL:4, subnet local:1, rsvd:3 */ 94 u8 primary_offset94; 95 /* local ACK timeout:5, rsvd:3 */ 96 u8 primary_offset95; 97 98 __be16 alt_local_lid; 99 __be16 alt_remote_lid; 100 union ib_gid alt_local_gid; 101 union ib_gid alt_remote_gid; 102 /* flow label:20, rsvd:6, packet rate:6 */ 103 __be32 alt_offset132; 104 u8 alt_traffic_class; 105 u8 alt_hop_limit; 106 /* SL:4, subnet local:1, rsvd:3 */ 107 u8 alt_offset138; 108 /* local ACK timeout:5, rsvd:3 */ 109 u8 alt_offset139; 110 111 u32 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE / sizeof(u32)]; 112 113} __attribute__ ((packed)); 114 115static inline __be32 cm_req_get_local_qpn(struct cm_req_msg *req_msg) 116{ 117 return cpu_to_be32(be32_to_cpu(req_msg->offset32) >> 8); 118} 119 120static inline void cm_req_set_local_qpn(struct cm_req_msg *req_msg, __be32 qpn) 121{ 122 req_msg->offset32 = cpu_to_be32((be32_to_cpu(qpn) << 8) | 123 (be32_to_cpu(req_msg->offset32) & 124 0x000000FF)); 125} 126 127static inline u8 cm_req_get_resp_res(struct cm_req_msg *req_msg) 128{ 129 return (u8) be32_to_cpu(req_msg->offset32); 130} 131 132static inline void cm_req_set_resp_res(struct cm_req_msg *req_msg, u8 resp_res) 133{ 134 req_msg->offset32 = cpu_to_be32(resp_res | 135 (be32_to_cpu(req_msg->offset32) & 136 0xFFFFFF00)); 137} 138 139static inline u8 cm_req_get_init_depth(struct cm_req_msg *req_msg) 140{ 141 return (u8) be32_to_cpu(req_msg->offset36); 142} 143 144static inline void cm_req_set_init_depth(struct cm_req_msg *req_msg, 145 u8 init_depth) 146{ 147 req_msg->offset36 = cpu_to_be32(init_depth | 148 (be32_to_cpu(req_msg->offset36) & 149 0xFFFFFF00)); 150} 151 152static inline u8 cm_req_get_remote_resp_timeout(struct cm_req_msg *req_msg) 153{ 154 return (u8) ((be32_to_cpu(req_msg->offset40) & 0xF8) >> 3); 155} 156 157static inline void cm_req_set_remote_resp_timeout(struct cm_req_msg *req_msg, 158 u8 resp_timeout) 159{ 160 req_msg->offset40 = cpu_to_be32((resp_timeout << 3) | 161 (be32_to_cpu(req_msg->offset40) & 162 0xFFFFFF07)); 163} 164 165static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg) 166{ 167 u8 transport_type = (u8) (be32_to_cpu(req_msg->offset40) & 0x06) >> 1; 168 switch(transport_type) { 169 case 0: return IB_QPT_RC; 170 case 1: return IB_QPT_UC; 171 case 3: 172 switch (req_msg->offset51 & 0x7) { 173 case 1: return IB_QPT_XRC_TGT; 174 default: return 0; 175 } 176 default: return 0; 177 } 178} 179 180static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg, 181 enum ib_qp_type qp_type) 182{ 183 switch(qp_type) { 184 case IB_QPT_UC: 185 req_msg->offset40 = cpu_to_be32((be32_to_cpu( 186 req_msg->offset40) & 187 0xFFFFFFF9) | 0x2); 188 break; 189 case IB_QPT_XRC_INI: 190 req_msg->offset40 = cpu_to_be32((be32_to_cpu( 191 req_msg->offset40) & 192 0xFFFFFFF9) | 0x6); 193 req_msg->offset51 = (req_msg->offset51 & 0xF8) | 1; 194 break; 195 default: 196 req_msg->offset40 = cpu_to_be32(be32_to_cpu( 197 req_msg->offset40) & 198 0xFFFFFFF9); 199 } 200} 201 202static inline u8 cm_req_get_flow_ctrl(struct cm_req_msg *req_msg) 203{ 204 return be32_to_cpu(req_msg->offset40) & 0x1; 205} 206 207static inline void cm_req_set_flow_ctrl(struct cm_req_msg *req_msg, 208 u8 flow_ctrl) 209{ 210 req_msg->offset40 = cpu_to_be32((flow_ctrl & 0x1) | 211 (be32_to_cpu(req_msg->offset40) & 212 0xFFFFFFFE)); 213} 214 215static inline __be32 cm_req_get_starting_psn(struct cm_req_msg *req_msg) 216{ 217 return cpu_to_be32(be32_to_cpu(req_msg->offset44) >> 8); 218} 219 220static inline void cm_req_set_starting_psn(struct cm_req_msg *req_msg, 221 __be32 starting_psn) 222{ 223 req_msg->offset44 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) | 224 (be32_to_cpu(req_msg->offset44) & 0x000000FF)); 225} 226 227static inline u8 cm_req_get_local_resp_timeout(struct cm_req_msg *req_msg) 228{ 229 return (u8) ((be32_to_cpu(req_msg->offset44) & 0xF8) >> 3); 230} 231 232static inline void cm_req_set_local_resp_timeout(struct cm_req_msg *req_msg, 233 u8 resp_timeout) 234{ 235 req_msg->offset44 = cpu_to_be32((resp_timeout << 3) | 236 (be32_to_cpu(req_msg->offset44) & 0xFFFFFF07)); 237} 238 239static inline u8 cm_req_get_retry_count(struct cm_req_msg *req_msg) 240{ 241 return (u8) (be32_to_cpu(req_msg->offset44) & 0x7); 242} 243 244static inline void cm_req_set_retry_count(struct cm_req_msg *req_msg, 245 u8 retry_count) 246{ 247 req_msg->offset44 = cpu_to_be32((retry_count & 0x7) | 248 (be32_to_cpu(req_msg->offset44) & 0xFFFFFFF8)); 249} 250 251static inline u8 cm_req_get_path_mtu(struct cm_req_msg *req_msg) 252{ 253 return req_msg->offset50 >> 4; 254} 255 256static inline void cm_req_set_path_mtu(struct cm_req_msg *req_msg, u8 path_mtu) 257{ 258 req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF) | (path_mtu << 4)); 259} 260 261static inline u8 cm_req_get_rnr_retry_count(struct cm_req_msg *req_msg) 262{ 263 return req_msg->offset50 & 0x7; 264} 265 266static inline void cm_req_set_rnr_retry_count(struct cm_req_msg *req_msg, 267 u8 rnr_retry_count) 268{ 269 req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF8) | 270 (rnr_retry_count & 0x7)); 271} 272 273static inline u8 cm_req_get_max_cm_retries(struct cm_req_msg *req_msg) 274{ 275 return req_msg->offset51 >> 4; 276} 277 278static inline void cm_req_set_max_cm_retries(struct cm_req_msg *req_msg, 279 u8 retries) 280{ 281 req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF) | (retries << 4)); 282} 283 284static inline u8 cm_req_get_srq(struct cm_req_msg *req_msg) 285{ 286 return (req_msg->offset51 & 0x8) >> 3; 287} 288 289static inline void cm_req_set_srq(struct cm_req_msg *req_msg, u8 srq) 290{ 291 req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF7) | 292 ((srq & 0x1) << 3)); 293} 294 295static inline __be32 cm_req_get_primary_flow_label(struct cm_req_msg *req_msg) 296{ 297 return cpu_to_be32(be32_to_cpu(req_msg->primary_offset88) >> 12); 298} 299 300static inline void cm_req_set_primary_flow_label(struct cm_req_msg *req_msg, 301 __be32 flow_label) 302{ 303 req_msg->primary_offset88 = cpu_to_be32( 304 (be32_to_cpu(req_msg->primary_offset88) & 305 0x00000FFF) | 306 (be32_to_cpu(flow_label) << 12)); 307} 308 309static inline u8 cm_req_get_primary_packet_rate(struct cm_req_msg *req_msg) 310{ 311 return (u8) (be32_to_cpu(req_msg->primary_offset88) & 0x3F); 312} 313 314static inline void cm_req_set_primary_packet_rate(struct cm_req_msg *req_msg, 315 u8 rate) 316{ 317 req_msg->primary_offset88 = cpu_to_be32( 318 (be32_to_cpu(req_msg->primary_offset88) & 319 0xFFFFFFC0) | (rate & 0x3F)); 320} 321 322static inline u8 cm_req_get_primary_sl(struct cm_req_msg *req_msg) 323{ 324 return (u8) (req_msg->primary_offset94 >> 4); 325} 326 327static inline void cm_req_set_primary_sl(struct cm_req_msg *req_msg, u8 sl) 328{ 329 req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0x0F) | 330 (sl << 4)); 331} 332 333static inline u8 cm_req_get_primary_subnet_local(struct cm_req_msg *req_msg) 334{ 335 return (u8) ((req_msg->primary_offset94 & 0x08) >> 3); 336} 337 338static inline void cm_req_set_primary_subnet_local(struct cm_req_msg *req_msg, 339 u8 subnet_local) 340{ 341 req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0xF7) | 342 ((subnet_local & 0x1) << 3)); 343} 344 345static inline u8 cm_req_get_primary_local_ack_timeout(struct cm_req_msg *req_msg) 346{ 347 return (u8) (req_msg->primary_offset95 >> 3); 348} 349 350static inline void cm_req_set_primary_local_ack_timeout(struct cm_req_msg *req_msg, 351 u8 local_ack_timeout) 352{ 353 req_msg->primary_offset95 = (u8) ((req_msg->primary_offset95 & 0x07) | 354 (local_ack_timeout << 3)); 355} 356 357static inline __be32 cm_req_get_alt_flow_label(struct cm_req_msg *req_msg) 358{ 359 return cpu_to_be32(be32_to_cpu(req_msg->alt_offset132) >> 12); 360} 361 362static inline void cm_req_set_alt_flow_label(struct cm_req_msg *req_msg, 363 __be32 flow_label) 364{ 365 req_msg->alt_offset132 = cpu_to_be32( 366 (be32_to_cpu(req_msg->alt_offset132) & 367 0x00000FFF) | 368 (be32_to_cpu(flow_label) << 12)); 369} 370 371static inline u8 cm_req_get_alt_packet_rate(struct cm_req_msg *req_msg) 372{ 373 return (u8) (be32_to_cpu(req_msg->alt_offset132) & 0x3F); 374} 375 376static inline void cm_req_set_alt_packet_rate(struct cm_req_msg *req_msg, 377 u8 rate) 378{ 379 req_msg->alt_offset132 = cpu_to_be32( 380 (be32_to_cpu(req_msg->alt_offset132) & 381 0xFFFFFFC0) | (rate & 0x3F)); 382} 383 384static inline u8 cm_req_get_alt_sl(struct cm_req_msg *req_msg) 385{ 386 return (u8) (req_msg->alt_offset138 >> 4); 387} 388 389static inline void cm_req_set_alt_sl(struct cm_req_msg *req_msg, u8 sl) 390{ 391 req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0x0F) | 392 (sl << 4)); 393} 394 395static inline u8 cm_req_get_alt_subnet_local(struct cm_req_msg *req_msg) 396{ 397 return (u8) ((req_msg->alt_offset138 & 0x08) >> 3); 398} 399 400static inline void cm_req_set_alt_subnet_local(struct cm_req_msg *req_msg, 401 u8 subnet_local) 402{ 403 req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0xF7) | 404 ((subnet_local & 0x1) << 3)); 405} 406 407static inline u8 cm_req_get_alt_local_ack_timeout(struct cm_req_msg *req_msg) 408{ 409 return (u8) (req_msg->alt_offset139 >> 3); 410} 411 412static inline void cm_req_set_alt_local_ack_timeout(struct cm_req_msg *req_msg, 413 u8 local_ack_timeout) 414{ 415 req_msg->alt_offset139 = (u8) ((req_msg->alt_offset139 & 0x07) | 416 (local_ack_timeout << 3)); 417} 418 419/* Message REJected or MRAed */ 420enum cm_msg_response { 421 CM_MSG_RESPONSE_REQ = 0x0, 422 CM_MSG_RESPONSE_REP = 0x1, 423 CM_MSG_RESPONSE_OTHER = 0x2 424}; 425 426 struct cm_mra_msg { 427 struct ib_mad_hdr hdr; 428 429 __be32 local_comm_id; 430 __be32 remote_comm_id; 431 /* message MRAed:2, rsvd:6 */ 432 u8 offset8; 433 /* service timeout:5, rsvd:3 */ 434 u8 offset9; 435 436 u8 private_data[IB_CM_MRA_PRIVATE_DATA_SIZE]; 437 438} __attribute__ ((packed)); 439 440static inline u8 cm_mra_get_msg_mraed(struct cm_mra_msg *mra_msg) 441{ 442 return (u8) (mra_msg->offset8 >> 6); 443} 444 445static inline void cm_mra_set_msg_mraed(struct cm_mra_msg *mra_msg, u8 msg) 446{ 447 mra_msg->offset8 = (u8) ((mra_msg->offset8 & 0x3F) | (msg << 6)); 448} 449 450static inline u8 cm_mra_get_service_timeout(struct cm_mra_msg *mra_msg) 451{ 452 return (u8) (mra_msg->offset9 >> 3); 453} 454 455static inline void cm_mra_set_service_timeout(struct cm_mra_msg *mra_msg, 456 u8 service_timeout) 457{ 458 mra_msg->offset9 = (u8) ((mra_msg->offset9 & 0x07) | 459 (service_timeout << 3)); 460} 461 462struct cm_rej_msg { 463 struct ib_mad_hdr hdr; 464 465 __be32 local_comm_id; 466 __be32 remote_comm_id; 467 /* message REJected:2, rsvd:6 */ 468 u8 offset8; 469 /* reject info length:7, rsvd:1. */ 470 u8 offset9; 471 __be16 reason; 472 u8 ari[IB_CM_REJ_ARI_LENGTH]; 473 474 u8 private_data[IB_CM_REJ_PRIVATE_DATA_SIZE]; 475 476} __attribute__ ((packed)); 477 478static inline u8 cm_rej_get_msg_rejected(struct cm_rej_msg *rej_msg) 479{ 480 return (u8) (rej_msg->offset8 >> 6); 481} 482 483static inline void cm_rej_set_msg_rejected(struct cm_rej_msg *rej_msg, u8 msg) 484{ 485 rej_msg->offset8 = (u8) ((rej_msg->offset8 & 0x3F) | (msg << 6)); 486} 487 488static inline u8 cm_rej_get_reject_info_len(struct cm_rej_msg *rej_msg) 489{ 490 return (u8) (rej_msg->offset9 >> 1); 491} 492 493static inline void cm_rej_set_reject_info_len(struct cm_rej_msg *rej_msg, 494 u8 len) 495{ 496 rej_msg->offset9 = (u8) ((rej_msg->offset9 & 0x1) | (len << 1)); 497} 498 499struct cm_rep_msg { 500 struct ib_mad_hdr hdr; 501 502 __be32 local_comm_id; 503 __be32 remote_comm_id; 504 __be32 local_qkey; 505 /* local QPN:24, rsvd:8 */ 506 __be32 offset12; 507 /* local EECN:24, rsvd:8 */ 508 __be32 offset16; 509 /* starting PSN:24 rsvd:8 */ 510 __be32 offset20; 511 u8 resp_resources; 512 u8 initiator_depth; 513 /* target ACK delay:5, failover accepted:2, end-to-end flow control:1 */ 514 u8 offset26; 515 /* RNR retry count:3, SRQ:1, rsvd:5 */ 516 u8 offset27; 517 __be64 local_ca_guid; 518 519 u8 private_data[IB_CM_REP_PRIVATE_DATA_SIZE]; 520 521} __attribute__ ((packed)); 522 523static inline __be32 cm_rep_get_local_qpn(struct cm_rep_msg *rep_msg) 524{ 525 return cpu_to_be32(be32_to_cpu(rep_msg->offset12) >> 8); 526} 527 528static inline void cm_rep_set_local_qpn(struct cm_rep_msg *rep_msg, __be32 qpn) 529{ 530 rep_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) | 531 (be32_to_cpu(rep_msg->offset12) & 0x000000FF)); 532} 533 534static inline __be32 cm_rep_get_local_eecn(struct cm_rep_msg *rep_msg) 535{ 536 return cpu_to_be32(be32_to_cpu(rep_msg->offset16) >> 8); 537} 538 539static inline void cm_rep_set_local_eecn(struct cm_rep_msg *rep_msg, __be32 eecn) 540{ 541 rep_msg->offset16 = cpu_to_be32((be32_to_cpu(eecn) << 8) | 542 (be32_to_cpu(rep_msg->offset16) & 0x000000FF)); 543} 544 545static inline __be32 cm_rep_get_qpn(struct cm_rep_msg *rep_msg, enum ib_qp_type qp_type) 546{ 547 return (qp_type == IB_QPT_XRC_INI) ? 548 cm_rep_get_local_eecn(rep_msg) : cm_rep_get_local_qpn(rep_msg); 549} 550 551static inline __be32 cm_rep_get_starting_psn(struct cm_rep_msg *rep_msg) 552{ 553 return cpu_to_be32(be32_to_cpu(rep_msg->offset20) >> 8); 554} 555 556static inline void cm_rep_set_starting_psn(struct cm_rep_msg *rep_msg, 557 __be32 starting_psn) 558{ 559 rep_msg->offset20 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) | 560 (be32_to_cpu(rep_msg->offset20) & 0x000000FF)); 561} 562 563static inline u8 cm_rep_get_target_ack_delay(struct cm_rep_msg *rep_msg) 564{ 565 return (u8) (rep_msg->offset26 >> 3); 566} 567 568static inline void cm_rep_set_target_ack_delay(struct cm_rep_msg *rep_msg, 569 u8 target_ack_delay) 570{ 571 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0x07) | 572 (target_ack_delay << 3)); 573} 574 575static inline u8 cm_rep_get_failover(struct cm_rep_msg *rep_msg) 576{ 577 return (u8) ((rep_msg->offset26 & 0x06) >> 1); 578} 579 580static inline void cm_rep_set_failover(struct cm_rep_msg *rep_msg, u8 failover) 581{ 582 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xF9) | 583 ((failover & 0x3) << 1)); 584} 585 586static inline u8 cm_rep_get_flow_ctrl(struct cm_rep_msg *rep_msg) 587{ 588 return (u8) (rep_msg->offset26 & 0x01); 589} 590 591static inline void cm_rep_set_flow_ctrl(struct cm_rep_msg *rep_msg, 592 u8 flow_ctrl) 593{ 594 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xFE) | 595 (flow_ctrl & 0x1)); 596} 597 598static inline u8 cm_rep_get_rnr_retry_count(struct cm_rep_msg *rep_msg) 599{ 600 return (u8) (rep_msg->offset27 >> 5); 601} 602 603static inline void cm_rep_set_rnr_retry_count(struct cm_rep_msg *rep_msg, 604 u8 rnr_retry_count) 605{ 606 rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0x1F) | 607 (rnr_retry_count << 5)); 608} 609 610static inline u8 cm_rep_get_srq(struct cm_rep_msg *rep_msg) 611{ 612 return (u8) ((rep_msg->offset27 >> 4) & 0x1); 613} 614 615static inline void cm_rep_set_srq(struct cm_rep_msg *rep_msg, u8 srq) 616{ 617 rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0xEF) | 618 ((srq & 0x1) << 4)); 619} 620 621struct cm_rtu_msg { 622 struct ib_mad_hdr hdr; 623 624 __be32 local_comm_id; 625 __be32 remote_comm_id; 626 627 u8 private_data[IB_CM_RTU_PRIVATE_DATA_SIZE]; 628 629} __attribute__ ((packed)); 630 631struct cm_dreq_msg { 632 struct ib_mad_hdr hdr; 633 634 __be32 local_comm_id; 635 __be32 remote_comm_id; 636 /* remote QPN/EECN:24, rsvd:8 */ 637 __be32 offset8; 638 639 u8 private_data[IB_CM_DREQ_PRIVATE_DATA_SIZE]; 640 641} __attribute__ ((packed)); 642 643static inline __be32 cm_dreq_get_remote_qpn(struct cm_dreq_msg *dreq_msg) 644{ 645 return cpu_to_be32(be32_to_cpu(dreq_msg->offset8) >> 8); 646} 647 648static inline void cm_dreq_set_remote_qpn(struct cm_dreq_msg *dreq_msg, __be32 qpn) 649{ 650 dreq_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) | 651 (be32_to_cpu(dreq_msg->offset8) & 0x000000FF)); 652} 653 654struct cm_drep_msg { 655 struct ib_mad_hdr hdr; 656 657 __be32 local_comm_id; 658 __be32 remote_comm_id; 659 660 u8 private_data[IB_CM_DREP_PRIVATE_DATA_SIZE]; 661 662} __attribute__ ((packed)); 663 664struct cm_lap_msg { 665 struct ib_mad_hdr hdr; 666 667 __be32 local_comm_id; 668 __be32 remote_comm_id; 669 670 __be32 rsvd8; 671 /* remote QPN/EECN:24, remote CM response timeout:5, rsvd:3 */ 672 __be32 offset12; 673 __be32 rsvd16; 674 675 __be16 alt_local_lid; 676 __be16 alt_remote_lid; 677 union ib_gid alt_local_gid; 678 union ib_gid alt_remote_gid; 679 /* flow label:20, rsvd:4, traffic class:8 */ 680 __be32 offset56; 681 u8 alt_hop_limit; 682 /* rsvd:2, packet rate:6 */ 683 u8 offset61; 684 /* SL:4, subnet local:1, rsvd:3 */ 685 u8 offset62; 686 /* local ACK timeout:5, rsvd:3 */ 687 u8 offset63; 688 689 u8 private_data[IB_CM_LAP_PRIVATE_DATA_SIZE]; 690} __attribute__ ((packed)); 691 692static inline __be32 cm_lap_get_remote_qpn(struct cm_lap_msg *lap_msg) 693{ 694 return cpu_to_be32(be32_to_cpu(lap_msg->offset12) >> 8); 695} 696 697static inline void cm_lap_set_remote_qpn(struct cm_lap_msg *lap_msg, __be32 qpn) 698{ 699 lap_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) | 700 (be32_to_cpu(lap_msg->offset12) & 701 0x000000FF)); 702} 703 704static inline u8 cm_lap_get_remote_resp_timeout(struct cm_lap_msg *lap_msg) 705{ 706 return (u8) ((be32_to_cpu(lap_msg->offset12) & 0xF8) >> 3); 707} 708 709static inline void cm_lap_set_remote_resp_timeout(struct cm_lap_msg *lap_msg, 710 u8 resp_timeout) 711{ 712 lap_msg->offset12 = cpu_to_be32((resp_timeout << 3) | 713 (be32_to_cpu(lap_msg->offset12) & 714 0xFFFFFF07)); 715} 716 717static inline __be32 cm_lap_get_flow_label(struct cm_lap_msg *lap_msg) 718{ 719 return cpu_to_be32(be32_to_cpu(lap_msg->offset56) >> 12); 720} 721 722static inline void cm_lap_set_flow_label(struct cm_lap_msg *lap_msg, 723 __be32 flow_label) 724{ 725 lap_msg->offset56 = cpu_to_be32( 726 (be32_to_cpu(lap_msg->offset56) & 0x00000FFF) | 727 (be32_to_cpu(flow_label) << 12)); 728} 729 730static inline u8 cm_lap_get_traffic_class(struct cm_lap_msg *lap_msg) 731{ 732 return (u8) be32_to_cpu(lap_msg->offset56); 733} 734 735static inline void cm_lap_set_traffic_class(struct cm_lap_msg *lap_msg, 736 u8 traffic_class) 737{ 738 lap_msg->offset56 = cpu_to_be32(traffic_class | 739 (be32_to_cpu(lap_msg->offset56) & 740 0xFFFFFF00)); 741} 742 743static inline u8 cm_lap_get_packet_rate(struct cm_lap_msg *lap_msg) 744{ 745 return lap_msg->offset61 & 0x3F; 746} 747 748static inline void cm_lap_set_packet_rate(struct cm_lap_msg *lap_msg, 749 u8 packet_rate) 750{ 751 lap_msg->offset61 = (packet_rate & 0x3F) | (lap_msg->offset61 & 0xC0); 752} 753 754static inline u8 cm_lap_get_sl(struct cm_lap_msg *lap_msg) 755{ 756 return lap_msg->offset62 >> 4; 757} 758 759static inline void cm_lap_set_sl(struct cm_lap_msg *lap_msg, u8 sl) 760{ 761 lap_msg->offset62 = (sl << 4) | (lap_msg->offset62 & 0x0F); 762} 763 764static inline u8 cm_lap_get_subnet_local(struct cm_lap_msg *lap_msg) 765{ 766 return (lap_msg->offset62 >> 3) & 0x1; 767} 768 769static inline void cm_lap_set_subnet_local(struct cm_lap_msg *lap_msg, 770 u8 subnet_local) 771{ 772 lap_msg->offset62 = ((subnet_local & 0x1) << 3) | 773 (lap_msg->offset61 & 0xF7); 774} 775static inline u8 cm_lap_get_local_ack_timeout(struct cm_lap_msg *lap_msg) 776{ 777 return lap_msg->offset63 >> 3; 778} 779 780static inline void cm_lap_set_local_ack_timeout(struct cm_lap_msg *lap_msg, 781 u8 local_ack_timeout) 782{ 783 lap_msg->offset63 = (local_ack_timeout << 3) | 784 (lap_msg->offset63 & 0x07); 785} 786 787struct cm_apr_msg { 788 struct ib_mad_hdr hdr; 789 790 __be32 local_comm_id; 791 __be32 remote_comm_id; 792 793 u8 info_length; 794 u8 ap_status; 795 __be16 rsvd; 796 u8 info[IB_CM_APR_INFO_LENGTH]; 797 798 u8 private_data[IB_CM_APR_PRIVATE_DATA_SIZE]; 799} __attribute__ ((packed)); 800 801struct cm_sidr_req_msg { 802 struct ib_mad_hdr hdr; 803 804 __be32 request_id; 805 __be16 pkey; 806 __be16 rsvd; 807 __be64 service_id; 808 809 u32 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE / sizeof(u32)]; 810} __attribute__ ((packed)); 811 812struct cm_sidr_rep_msg { 813 struct ib_mad_hdr hdr; 814 815 __be32 request_id; 816 u8 status; 817 u8 info_length; 818 __be16 rsvd; 819 /* QPN:24, rsvd:8 */ 820 __be32 offset8; 821 __be64 service_id; 822 __be32 qkey; 823 u8 info[IB_CM_SIDR_REP_INFO_LENGTH]; 824 825 u8 private_data[IB_CM_SIDR_REP_PRIVATE_DATA_SIZE]; 826} __attribute__ ((packed)); 827 828static inline __be32 cm_sidr_rep_get_qpn(struct cm_sidr_rep_msg *sidr_rep_msg) 829{ 830 return cpu_to_be32(be32_to_cpu(sidr_rep_msg->offset8) >> 8); 831} 832 833static inline void cm_sidr_rep_set_qpn(struct cm_sidr_rep_msg *sidr_rep_msg, 834 __be32 qpn) 835{ 836 sidr_rep_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) | 837 (be32_to_cpu(sidr_rep_msg->offset8) & 838 0x000000FF)); 839} 840 841#endif /* CM_MSGS_H */ 842