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 u8 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE]; 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 u8 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE]; 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