1/* 2 * Copyright (c) 2004 Intel Corporation. All rights reserved. 3 * Copyright (c) 2004 Topspin Corporation. All rights reserved. 4 * Copyright (c) 2004 Voltaire Corporation. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING the madirectory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use source and binary forms, with or 13 * withmodification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retathe above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHWARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS THE 32 * SOFTWARE. 33 */ 34#if !defined(CM_MSGS_H) 35#define CM_MSGS_H 36 37#include <rdma/ib_mad.h> 38#include <rdma/ib_cm.h> 39 40/* 41 * Parameters to routines below should be in network-byte order, and values 42 * are returned in network-byte order. 43 */ 44 45#define IB_CM_CLASS_VERSION 2 /* IB specification 1.2 */ 46 47#define CM_REQ_ATTR_ID cpu_to_be16(0x0010) 48#define CM_MRA_ATTR_ID cpu_to_be16(0x0011) 49#define CM_REJ_ATTR_ID cpu_to_be16(0x0012) 50#define CM_REP_ATTR_ID cpu_to_be16(0x0013) 51#define CM_RTU_ATTR_ID cpu_to_be16(0x0014) 52#define CM_DREQ_ATTR_ID cpu_to_be16(0x0015) 53#define CM_DREP_ATTR_ID cpu_to_be16(0x0016) 54#define CM_SIDR_REQ_ATTR_ID cpu_to_be16(0x0017) 55#define CM_SIDR_REP_ATTR_ID cpu_to_be16(0x0018) 56#define CM_LAP_ATTR_ID cpu_to_be16(0x0019) 57#define CM_APR_ATTR_ID cpu_to_be16(0x001A) 58 59enum cm_msg_sequence { 60 CM_MSG_SEQUENCE_REQ, 61 CM_MSG_SEQUENCE_LAP, 62 CM_MSG_SEQUENCE_DREQ, 63 CM_MSG_SEQUENCE_SIDR 64}; 65 66struct cm_req_msg { 67 struct ib_mad_hdr hdr; 68 69 __be32 local_comm_id; 70 __be32 rsvd4; 71 __be64 service_id; 72 __be64 local_ca_guid; 73 __be32 rsvd24; 74 __be32 local_qkey; 75 /* local QPN:24, responder resources:8 */ 76 __be32 offset32; 77 /* local EECN:24, initiator depth:8 */ 78 __be32 offset36; 79 /* 80 * remote EECN:24, remote CM response timeout:5, 81 * transport service type:2, end-to-end flow control:1 82 */ 83 __be32 offset40; 84 /* starting PSN:24, local CM response timeout:5, retry count:3 */ 85 __be32 offset44; 86 __be16 pkey; 87 /* path MTU:4, RDC exists:1, RNR retry count:3. */ 88 u8 offset50; 89 /* max CM Retries:4, SRQ:1, rsvd:3 */ 90 u8 offset51; 91 92 __be16 primary_local_lid; 93 __be16 primary_remote_lid; 94 union ib_gid primary_local_gid; 95 union ib_gid primary_remote_gid; 96 /* flow label:20, rsvd:6, packet rate:6 */ 97 __be32 primary_offset88; 98 u8 primary_traffic_class; 99 u8 primary_hop_limit; 100 /* SL:4, subnet local:1, rsvd:3 */ 101 u8 primary_offset94; 102 /* local ACK timeout:5, rsvd:3 */ 103 u8 primary_offset95; 104 105 __be16 alt_local_lid; 106 __be16 alt_remote_lid; 107 union ib_gid alt_local_gid; 108 union ib_gid alt_remote_gid; 109 /* flow label:20, rsvd:6, packet rate:6 */ 110 __be32 alt_offset132; 111 u8 alt_traffic_class; 112 u8 alt_hop_limit; 113 /* SL:4, subnet local:1, rsvd:3 */ 114 u8 alt_offset138; 115 /* local ACK timeout:5, rsvd:3 */ 116 u8 alt_offset139; 117 118 u8 private_data[IB_CM_REQ_PRIVATE_DATA_SIZE]; 119 120} __attribute__ ((packed)); 121 122static inline __be32 cm_req_get_local_qpn(struct cm_req_msg *req_msg) 123{ 124 return cpu_to_be32(be32_to_cpu(req_msg->offset32) >> 8); 125} 126 127static inline void cm_req_set_local_qpn(struct cm_req_msg *req_msg, __be32 qpn) 128{ 129 req_msg->offset32 = cpu_to_be32((be32_to_cpu(qpn) << 8) | 130 (be32_to_cpu(req_msg->offset32) & 131 0x000000FF)); 132} 133 134static inline u8 cm_req_get_resp_res(struct cm_req_msg *req_msg) 135{ 136 return (u8) be32_to_cpu(req_msg->offset32); 137} 138 139static inline void cm_req_set_resp_res(struct cm_req_msg *req_msg, u8 resp_res) 140{ 141 req_msg->offset32 = cpu_to_be32(resp_res | 142 (be32_to_cpu(req_msg->offset32) & 143 0xFFFFFF00)); 144} 145 146static inline u8 cm_req_get_init_depth(struct cm_req_msg *req_msg) 147{ 148 return (u8) be32_to_cpu(req_msg->offset36); 149} 150 151static inline void cm_req_set_init_depth(struct cm_req_msg *req_msg, 152 u8 init_depth) 153{ 154 req_msg->offset36 = cpu_to_be32(init_depth | 155 (be32_to_cpu(req_msg->offset36) & 156 0xFFFFFF00)); 157} 158 159static inline u8 cm_req_get_remote_resp_timeout(struct cm_req_msg *req_msg) 160{ 161 return (u8) ((be32_to_cpu(req_msg->offset40) & 0xF8) >> 3); 162} 163 164static inline void cm_req_set_remote_resp_timeout(struct cm_req_msg *req_msg, 165 u8 resp_timeout) 166{ 167 req_msg->offset40 = cpu_to_be32((resp_timeout << 3) | 168 (be32_to_cpu(req_msg->offset40) & 169 0xFFFFFF07)); 170} 171 172static inline enum ib_qp_type cm_req_get_qp_type(struct cm_req_msg *req_msg) 173{ 174 u8 transport_type = (u8) (be32_to_cpu(req_msg->offset40) & 0x06) >> 1; 175 switch(transport_type) { 176 case 0: return IB_QPT_RC; 177 case 1: return IB_QPT_UC; 178 default: return 0; 179 } 180} 181 182static inline void cm_req_set_qp_type(struct cm_req_msg *req_msg, 183 enum ib_qp_type qp_type) 184{ 185 switch(qp_type) { 186 case IB_QPT_UC: 187 req_msg->offset40 = cpu_to_be32((be32_to_cpu( 188 req_msg->offset40) & 189 0xFFFFFFF9) | 0x2); 190 break; 191 default: 192 req_msg->offset40 = cpu_to_be32(be32_to_cpu( 193 req_msg->offset40) & 194 0xFFFFFFF9); 195 } 196} 197 198static inline u8 cm_req_get_flow_ctrl(struct cm_req_msg *req_msg) 199{ 200 return be32_to_cpu(req_msg->offset40) & 0x1; 201} 202 203static inline void cm_req_set_flow_ctrl(struct cm_req_msg *req_msg, 204 u8 flow_ctrl) 205{ 206 req_msg->offset40 = cpu_to_be32((flow_ctrl & 0x1) | 207 (be32_to_cpu(req_msg->offset40) & 208 0xFFFFFFFE)); 209} 210 211static inline __be32 cm_req_get_starting_psn(struct cm_req_msg *req_msg) 212{ 213 return cpu_to_be32(be32_to_cpu(req_msg->offset44) >> 8); 214} 215 216static inline void cm_req_set_starting_psn(struct cm_req_msg *req_msg, 217 __be32 starting_psn) 218{ 219 req_msg->offset44 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) | 220 (be32_to_cpu(req_msg->offset44) & 0x000000FF)); 221} 222 223static inline u8 cm_req_get_local_resp_timeout(struct cm_req_msg *req_msg) 224{ 225 return (u8) ((be32_to_cpu(req_msg->offset44) & 0xF8) >> 3); 226} 227 228static inline void cm_req_set_local_resp_timeout(struct cm_req_msg *req_msg, 229 u8 resp_timeout) 230{ 231 req_msg->offset44 = cpu_to_be32((resp_timeout << 3) | 232 (be32_to_cpu(req_msg->offset44) & 0xFFFFFF07)); 233} 234 235static inline u8 cm_req_get_retry_count(struct cm_req_msg *req_msg) 236{ 237 return (u8) (be32_to_cpu(req_msg->offset44) & 0x7); 238} 239 240static inline void cm_req_set_retry_count(struct cm_req_msg *req_msg, 241 u8 retry_count) 242{ 243 req_msg->offset44 = cpu_to_be32((retry_count & 0x7) | 244 (be32_to_cpu(req_msg->offset44) & 0xFFFFFFF8)); 245} 246 247static inline u8 cm_req_get_path_mtu(struct cm_req_msg *req_msg) 248{ 249 return req_msg->offset50 >> 4; 250} 251 252static inline void cm_req_set_path_mtu(struct cm_req_msg *req_msg, u8 path_mtu) 253{ 254 req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF) | (path_mtu << 4)); 255} 256 257static inline u8 cm_req_get_rnr_retry_count(struct cm_req_msg *req_msg) 258{ 259 return req_msg->offset50 & 0x7; 260} 261 262static inline void cm_req_set_rnr_retry_count(struct cm_req_msg *req_msg, 263 u8 rnr_retry_count) 264{ 265 req_msg->offset50 = (u8) ((req_msg->offset50 & 0xF8) | 266 (rnr_retry_count & 0x7)); 267} 268 269static inline u8 cm_req_get_max_cm_retries(struct cm_req_msg *req_msg) 270{ 271 return req_msg->offset51 >> 4; 272} 273 274static inline void cm_req_set_max_cm_retries(struct cm_req_msg *req_msg, 275 u8 retries) 276{ 277 req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF) | (retries << 4)); 278} 279 280static inline u8 cm_req_get_srq(struct cm_req_msg *req_msg) 281{ 282 return (req_msg->offset51 & 0x8) >> 3; 283} 284 285static inline void cm_req_set_srq(struct cm_req_msg *req_msg, u8 srq) 286{ 287 req_msg->offset51 = (u8) ((req_msg->offset51 & 0xF7) | 288 ((srq & 0x1) << 3)); 289} 290 291static inline __be32 cm_req_get_primary_flow_label(struct cm_req_msg *req_msg) 292{ 293 return cpu_to_be32(be32_to_cpu(req_msg->primary_offset88) >> 12); 294} 295 296static inline void cm_req_set_primary_flow_label(struct cm_req_msg *req_msg, 297 __be32 flow_label) 298{ 299 req_msg->primary_offset88 = cpu_to_be32( 300 (be32_to_cpu(req_msg->primary_offset88) & 301 0x00000FFF) | 302 (be32_to_cpu(flow_label) << 12)); 303} 304 305static inline u8 cm_req_get_primary_packet_rate(struct cm_req_msg *req_msg) 306{ 307 return (u8) (be32_to_cpu(req_msg->primary_offset88) & 0x3F); 308} 309 310static inline void cm_req_set_primary_packet_rate(struct cm_req_msg *req_msg, 311 u8 rate) 312{ 313 req_msg->primary_offset88 = cpu_to_be32( 314 (be32_to_cpu(req_msg->primary_offset88) & 315 0xFFFFFFC0) | (rate & 0x3F)); 316} 317 318static inline u8 cm_req_get_primary_sl(struct cm_req_msg *req_msg) 319{ 320 return (u8) (req_msg->primary_offset94 >> 4); 321} 322 323static inline void cm_req_set_primary_sl(struct cm_req_msg *req_msg, u8 sl) 324{ 325 req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0x0F) | 326 (sl << 4)); 327} 328 329static inline u8 cm_req_get_primary_subnet_local(struct cm_req_msg *req_msg) 330{ 331 return (u8) ((req_msg->primary_offset94 & 0x08) >> 3); 332} 333 334static inline void cm_req_set_primary_subnet_local(struct cm_req_msg *req_msg, 335 u8 subnet_local) 336{ 337 req_msg->primary_offset94 = (u8) ((req_msg->primary_offset94 & 0xF7) | 338 ((subnet_local & 0x1) << 3)); 339} 340 341static inline u8 cm_req_get_primary_local_ack_timeout(struct cm_req_msg *req_msg) 342{ 343 return (u8) (req_msg->primary_offset95 >> 3); 344} 345 346static inline void cm_req_set_primary_local_ack_timeout(struct cm_req_msg *req_msg, 347 u8 local_ack_timeout) 348{ 349 req_msg->primary_offset95 = (u8) ((req_msg->primary_offset95 & 0x07) | 350 (local_ack_timeout << 3)); 351} 352 353static inline __be32 cm_req_get_alt_flow_label(struct cm_req_msg *req_msg) 354{ 355 return cpu_to_be32(be32_to_cpu(req_msg->alt_offset132) >> 12); 356} 357 358static inline void cm_req_set_alt_flow_label(struct cm_req_msg *req_msg, 359 __be32 flow_label) 360{ 361 req_msg->alt_offset132 = cpu_to_be32( 362 (be32_to_cpu(req_msg->alt_offset132) & 363 0x00000FFF) | 364 (be32_to_cpu(flow_label) << 12)); 365} 366 367static inline u8 cm_req_get_alt_packet_rate(struct cm_req_msg *req_msg) 368{ 369 return (u8) (be32_to_cpu(req_msg->alt_offset132) & 0x3F); 370} 371 372static inline void cm_req_set_alt_packet_rate(struct cm_req_msg *req_msg, 373 u8 rate) 374{ 375 req_msg->alt_offset132 = cpu_to_be32( 376 (be32_to_cpu(req_msg->alt_offset132) & 377 0xFFFFFFC0) | (rate & 0x3F)); 378} 379 380static inline u8 cm_req_get_alt_sl(struct cm_req_msg *req_msg) 381{ 382 return (u8) (req_msg->alt_offset138 >> 4); 383} 384 385static inline void cm_req_set_alt_sl(struct cm_req_msg *req_msg, u8 sl) 386{ 387 req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0x0F) | 388 (sl << 4)); 389} 390 391static inline u8 cm_req_get_alt_subnet_local(struct cm_req_msg *req_msg) 392{ 393 return (u8) ((req_msg->alt_offset138 & 0x08) >> 3); 394} 395 396static inline void cm_req_set_alt_subnet_local(struct cm_req_msg *req_msg, 397 u8 subnet_local) 398{ 399 req_msg->alt_offset138 = (u8) ((req_msg->alt_offset138 & 0xF7) | 400 ((subnet_local & 0x1) << 3)); 401} 402 403static inline u8 cm_req_get_alt_local_ack_timeout(struct cm_req_msg *req_msg) 404{ 405 return (u8) (req_msg->alt_offset139 >> 3); 406} 407 408static inline void cm_req_set_alt_local_ack_timeout(struct cm_req_msg *req_msg, 409 u8 local_ack_timeout) 410{ 411 req_msg->alt_offset139 = (u8) ((req_msg->alt_offset139 & 0x07) | 412 (local_ack_timeout << 3)); 413} 414 415/* Message REJected or MRAed */ 416enum cm_msg_response { 417 CM_MSG_RESPONSE_REQ = 0x0, 418 CM_MSG_RESPONSE_REP = 0x1, 419 CM_MSG_RESPONSE_OTHER = 0x2 420}; 421 422 struct cm_mra_msg { 423 struct ib_mad_hdr hdr; 424 425 __be32 local_comm_id; 426 __be32 remote_comm_id; 427 /* message MRAed:2, rsvd:6 */ 428 u8 offset8; 429 /* service timeout:5, rsvd:3 */ 430 u8 offset9; 431 432 u8 private_data[IB_CM_MRA_PRIVATE_DATA_SIZE]; 433 434} __attribute__ ((packed)); 435 436static inline u8 cm_mra_get_msg_mraed(struct cm_mra_msg *mra_msg) 437{ 438 return (u8) (mra_msg->offset8 >> 6); 439} 440 441static inline void cm_mra_set_msg_mraed(struct cm_mra_msg *mra_msg, u8 msg) 442{ 443 mra_msg->offset8 = (u8) ((mra_msg->offset8 & 0x3F) | (msg << 6)); 444} 445 446static inline u8 cm_mra_get_service_timeout(struct cm_mra_msg *mra_msg) 447{ 448 return (u8) (mra_msg->offset9 >> 3); 449} 450 451static inline void cm_mra_set_service_timeout(struct cm_mra_msg *mra_msg, 452 u8 service_timeout) 453{ 454 mra_msg->offset9 = (u8) ((mra_msg->offset9 & 0x07) | 455 (service_timeout << 3)); 456} 457 458struct cm_rej_msg { 459 struct ib_mad_hdr hdr; 460 461 __be32 local_comm_id; 462 __be32 remote_comm_id; 463 /* message REJected:2, rsvd:6 */ 464 u8 offset8; 465 /* reject info length:7, rsvd:1. */ 466 u8 offset9; 467 __be16 reason; 468 u8 ari[IB_CM_REJ_ARI_LENGTH]; 469 470 u8 private_data[IB_CM_REJ_PRIVATE_DATA_SIZE]; 471 472} __attribute__ ((packed)); 473 474static inline u8 cm_rej_get_msg_rejected(struct cm_rej_msg *rej_msg) 475{ 476 return (u8) (rej_msg->offset8 >> 6); 477} 478 479static inline void cm_rej_set_msg_rejected(struct cm_rej_msg *rej_msg, u8 msg) 480{ 481 rej_msg->offset8 = (u8) ((rej_msg->offset8 & 0x3F) | (msg << 6)); 482} 483 484static inline u8 cm_rej_get_reject_info_len(struct cm_rej_msg *rej_msg) 485{ 486 return (u8) (rej_msg->offset9 >> 1); 487} 488 489static inline void cm_rej_set_reject_info_len(struct cm_rej_msg *rej_msg, 490 u8 len) 491{ 492 rej_msg->offset9 = (u8) ((rej_msg->offset9 & 0x1) | (len << 1)); 493} 494 495struct cm_rep_msg { 496 struct ib_mad_hdr hdr; 497 498 __be32 local_comm_id; 499 __be32 remote_comm_id; 500 __be32 local_qkey; 501 /* local QPN:24, rsvd:8 */ 502 __be32 offset12; 503 /* local EECN:24, rsvd:8 */ 504 __be32 offset16; 505 /* starting PSN:24 rsvd:8 */ 506 __be32 offset20; 507 u8 resp_resources; 508 u8 initiator_depth; 509 /* target ACK delay:5, failover accepted:2, end-to-end flow control:1 */ 510 u8 offset26; 511 /* RNR retry count:3, SRQ:1, rsvd:5 */ 512 u8 offset27; 513 __be64 local_ca_guid; 514 515 u8 private_data[IB_CM_REP_PRIVATE_DATA_SIZE]; 516 517} __attribute__ ((packed)); 518 519static inline __be32 cm_rep_get_local_qpn(struct cm_rep_msg *rep_msg) 520{ 521 return cpu_to_be32(be32_to_cpu(rep_msg->offset12) >> 8); 522} 523 524static inline void cm_rep_set_local_qpn(struct cm_rep_msg *rep_msg, __be32 qpn) 525{ 526 rep_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) | 527 (be32_to_cpu(rep_msg->offset12) & 0x000000FF)); 528} 529 530static inline __be32 cm_rep_get_starting_psn(struct cm_rep_msg *rep_msg) 531{ 532 return cpu_to_be32(be32_to_cpu(rep_msg->offset20) >> 8); 533} 534 535static inline void cm_rep_set_starting_psn(struct cm_rep_msg *rep_msg, 536 __be32 starting_psn) 537{ 538 rep_msg->offset20 = cpu_to_be32((be32_to_cpu(starting_psn) << 8) | 539 (be32_to_cpu(rep_msg->offset20) & 0x000000FF)); 540} 541 542static inline u8 cm_rep_get_target_ack_delay(struct cm_rep_msg *rep_msg) 543{ 544 return (u8) (rep_msg->offset26 >> 3); 545} 546 547static inline void cm_rep_set_target_ack_delay(struct cm_rep_msg *rep_msg, 548 u8 target_ack_delay) 549{ 550 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0x07) | 551 (target_ack_delay << 3)); 552} 553 554static inline u8 cm_rep_get_failover(struct cm_rep_msg *rep_msg) 555{ 556 return (u8) ((rep_msg->offset26 & 0x06) >> 1); 557} 558 559static inline void cm_rep_set_failover(struct cm_rep_msg *rep_msg, u8 failover) 560{ 561 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xF9) | 562 ((failover & 0x3) << 1)); 563} 564 565static inline u8 cm_rep_get_flow_ctrl(struct cm_rep_msg *rep_msg) 566{ 567 return (u8) (rep_msg->offset26 & 0x01); 568} 569 570static inline void cm_rep_set_flow_ctrl(struct cm_rep_msg *rep_msg, 571 u8 flow_ctrl) 572{ 573 rep_msg->offset26 = (u8) ((rep_msg->offset26 & 0xFE) | 574 (flow_ctrl & 0x1)); 575} 576 577static inline u8 cm_rep_get_rnr_retry_count(struct cm_rep_msg *rep_msg) 578{ 579 return (u8) (rep_msg->offset27 >> 5); 580} 581 582static inline void cm_rep_set_rnr_retry_count(struct cm_rep_msg *rep_msg, 583 u8 rnr_retry_count) 584{ 585 rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0x1F) | 586 (rnr_retry_count << 5)); 587} 588 589static inline u8 cm_rep_get_srq(struct cm_rep_msg *rep_msg) 590{ 591 return (u8) ((rep_msg->offset27 >> 4) & 0x1); 592} 593 594static inline void cm_rep_set_srq(struct cm_rep_msg *rep_msg, u8 srq) 595{ 596 rep_msg->offset27 = (u8) ((rep_msg->offset27 & 0xEF) | 597 ((srq & 0x1) << 4)); 598} 599 600struct cm_rtu_msg { 601 struct ib_mad_hdr hdr; 602 603 __be32 local_comm_id; 604 __be32 remote_comm_id; 605 606 u8 private_data[IB_CM_RTU_PRIVATE_DATA_SIZE]; 607 608} __attribute__ ((packed)); 609 610struct cm_dreq_msg { 611 struct ib_mad_hdr hdr; 612 613 __be32 local_comm_id; 614 __be32 remote_comm_id; 615 /* remote QPN/EECN:24, rsvd:8 */ 616 __be32 offset8; 617 618 u8 private_data[IB_CM_DREQ_PRIVATE_DATA_SIZE]; 619 620} __attribute__ ((packed)); 621 622static inline __be32 cm_dreq_get_remote_qpn(struct cm_dreq_msg *dreq_msg) 623{ 624 return cpu_to_be32(be32_to_cpu(dreq_msg->offset8) >> 8); 625} 626 627static inline void cm_dreq_set_remote_qpn(struct cm_dreq_msg *dreq_msg, __be32 qpn) 628{ 629 dreq_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) | 630 (be32_to_cpu(dreq_msg->offset8) & 0x000000FF)); 631} 632 633struct cm_drep_msg { 634 struct ib_mad_hdr hdr; 635 636 __be32 local_comm_id; 637 __be32 remote_comm_id; 638 639 u8 private_data[IB_CM_DREP_PRIVATE_DATA_SIZE]; 640 641} __attribute__ ((packed)); 642 643struct cm_lap_msg { 644 struct ib_mad_hdr hdr; 645 646 __be32 local_comm_id; 647 __be32 remote_comm_id; 648 649 __be32 rsvd8; 650 /* remote QPN/EECN:24, remote CM response timeout:5, rsvd:3 */ 651 __be32 offset12; 652 __be32 rsvd16; 653 654 __be16 alt_local_lid; 655 __be16 alt_remote_lid; 656 union ib_gid alt_local_gid; 657 union ib_gid alt_remote_gid; 658 /* flow label:20, rsvd:4, traffic class:8 */ 659 __be32 offset56; 660 u8 alt_hop_limit; 661 /* rsvd:2, packet rate:6 */ 662 u8 offset61; 663 /* SL:4, subnet local:1, rsvd:3 */ 664 u8 offset62; 665 /* local ACK timeout:5, rsvd:3 */ 666 u8 offset63; 667 668 u8 private_data[IB_CM_LAP_PRIVATE_DATA_SIZE]; 669} __attribute__ ((packed)); 670 671static inline __be32 cm_lap_get_remote_qpn(struct cm_lap_msg *lap_msg) 672{ 673 return cpu_to_be32(be32_to_cpu(lap_msg->offset12) >> 8); 674} 675 676static inline void cm_lap_set_remote_qpn(struct cm_lap_msg *lap_msg, __be32 qpn) 677{ 678 lap_msg->offset12 = cpu_to_be32((be32_to_cpu(qpn) << 8) | 679 (be32_to_cpu(lap_msg->offset12) & 680 0x000000FF)); 681} 682 683static inline u8 cm_lap_get_remote_resp_timeout(struct cm_lap_msg *lap_msg) 684{ 685 return (u8) ((be32_to_cpu(lap_msg->offset12) & 0xF8) >> 3); 686} 687 688static inline void cm_lap_set_remote_resp_timeout(struct cm_lap_msg *lap_msg, 689 u8 resp_timeout) 690{ 691 lap_msg->offset12 = cpu_to_be32((resp_timeout << 3) | 692 (be32_to_cpu(lap_msg->offset12) & 693 0xFFFFFF07)); 694} 695 696static inline __be32 cm_lap_get_flow_label(struct cm_lap_msg *lap_msg) 697{ 698 return cpu_to_be32(be32_to_cpu(lap_msg->offset56) >> 12); 699} 700 701static inline void cm_lap_set_flow_label(struct cm_lap_msg *lap_msg, 702 __be32 flow_label) 703{ 704 lap_msg->offset56 = cpu_to_be32( 705 (be32_to_cpu(lap_msg->offset56) & 0x00000FFF) | 706 (be32_to_cpu(flow_label) << 12)); 707} 708 709static inline u8 cm_lap_get_traffic_class(struct cm_lap_msg *lap_msg) 710{ 711 return (u8) be32_to_cpu(lap_msg->offset56); 712} 713 714static inline void cm_lap_set_traffic_class(struct cm_lap_msg *lap_msg, 715 u8 traffic_class) 716{ 717 lap_msg->offset56 = cpu_to_be32(traffic_class | 718 (be32_to_cpu(lap_msg->offset56) & 719 0xFFFFFF00)); 720} 721 722static inline u8 cm_lap_get_packet_rate(struct cm_lap_msg *lap_msg) 723{ 724 return lap_msg->offset61 & 0x3F; 725} 726 727static inline void cm_lap_set_packet_rate(struct cm_lap_msg *lap_msg, 728 u8 packet_rate) 729{ 730 lap_msg->offset61 = (packet_rate & 0x3F) | (lap_msg->offset61 & 0xC0); 731} 732 733static inline u8 cm_lap_get_sl(struct cm_lap_msg *lap_msg) 734{ 735 return lap_msg->offset62 >> 4; 736} 737 738static inline void cm_lap_set_sl(struct cm_lap_msg *lap_msg, u8 sl) 739{ 740 lap_msg->offset62 = (sl << 4) | (lap_msg->offset62 & 0x0F); 741} 742 743static inline u8 cm_lap_get_subnet_local(struct cm_lap_msg *lap_msg) 744{ 745 return (lap_msg->offset62 >> 3) & 0x1; 746} 747 748static inline void cm_lap_set_subnet_local(struct cm_lap_msg *lap_msg, 749 u8 subnet_local) 750{ 751 lap_msg->offset62 = ((subnet_local & 0x1) << 3) | 752 (lap_msg->offset61 & 0xF7); 753} 754static inline u8 cm_lap_get_local_ack_timeout(struct cm_lap_msg *lap_msg) 755{ 756 return lap_msg->offset63 >> 3; 757} 758 759static inline void cm_lap_set_local_ack_timeout(struct cm_lap_msg *lap_msg, 760 u8 local_ack_timeout) 761{ 762 lap_msg->offset63 = (local_ack_timeout << 3) | 763 (lap_msg->offset63 & 0x07); 764} 765 766struct cm_apr_msg { 767 struct ib_mad_hdr hdr; 768 769 __be32 local_comm_id; 770 __be32 remote_comm_id; 771 772 u8 info_length; 773 u8 ap_status; 774 u8 info[IB_CM_APR_INFO_LENGTH]; 775 776 u8 private_data[IB_CM_APR_PRIVATE_DATA_SIZE]; 777} __attribute__ ((packed)); 778 779struct cm_sidr_req_msg { 780 struct ib_mad_hdr hdr; 781 782 __be32 request_id; 783 __be16 pkey; 784 __be16 rsvd; 785 __be64 service_id; 786 787 u8 private_data[IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE]; 788} __attribute__ ((packed)); 789 790struct cm_sidr_rep_msg { 791 struct ib_mad_hdr hdr; 792 793 __be32 request_id; 794 u8 status; 795 u8 info_length; 796 __be16 rsvd; 797 /* QPN:24, rsvd:8 */ 798 __be32 offset8; 799 __be64 service_id; 800 __be32 qkey; 801 u8 info[IB_CM_SIDR_REP_INFO_LENGTH]; 802 803 u8 private_data[IB_CM_SIDR_REP_PRIVATE_DATA_SIZE]; 804} __attribute__ ((packed)); 805 806static inline __be32 cm_sidr_rep_get_qpn(struct cm_sidr_rep_msg *sidr_rep_msg) 807{ 808 return cpu_to_be32(be32_to_cpu(sidr_rep_msg->offset8) >> 8); 809} 810 811static inline void cm_sidr_rep_set_qpn(struct cm_sidr_rep_msg *sidr_rep_msg, 812 __be32 qpn) 813{ 814 sidr_rep_msg->offset8 = cpu_to_be32((be32_to_cpu(qpn) << 8) | 815 (be32_to_cpu(sidr_rep_msg->offset8) & 816 0x000000FF)); 817} 818 819#endif /* CM_MSGS_H */ 820