1 /* 2 * Copyright (c) 2004, 2005 Intel Corporation. All rights reserved. 3 * Copyright (c) 2004 Topspin Corporation. All rights reserved. 4 * Copyright (c) 2004 Voltaire Corporation. All rights reserved. 5 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 6 * 7 * This software is available to you under a choice of one of two 8 * licenses. You may choose to be licensed under the terms of the GNU 9 * General Public License (GPL) Version 2, available from the file 10 * COPYING in the main directory of this source tree, or the 11 * OpenIB.org BSD license below: 12 * 13 * Redistribution and use in source and binary forms, with or 14 * without modification, are permitted provided that the following 15 * conditions are met: 16 * 17 * - Redistributions of source code must retain the above 18 * copyright notice, this list of conditions and the following 19 * disclaimer. 20 * 21 * - Redistributions in binary form must reproduce the above 22 * copyright notice, this list of conditions and the following 23 * disclaimer in the documentation and/or other materials 24 * provided with the distribution. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 33 * SOFTWARE. 34 */ 35 #if !defined(IB_CM_H) 36 #define IB_CM_H 37 38 #include <rdma/ib_mad.h> 39 #include <rdma/ib_sa.h> 40 41 /* ib_cm and ib_user_cm modules share /sys/class/infiniband_cm */ 42 extern struct class cm_class; 43 44 enum ib_cm_state { 45 IB_CM_IDLE, 46 IB_CM_LISTEN, 47 IB_CM_REQ_SENT, 48 IB_CM_REQ_RCVD, 49 IB_CM_MRA_REQ_SENT, 50 IB_CM_MRA_REQ_RCVD, 51 IB_CM_REP_SENT, 52 IB_CM_REP_RCVD, 53 IB_CM_MRA_REP_SENT, 54 IB_CM_MRA_REP_RCVD, 55 IB_CM_ESTABLISHED, 56 IB_CM_DREQ_SENT, 57 IB_CM_DREQ_RCVD, 58 IB_CM_TIMEWAIT, 59 IB_CM_SIDR_REQ_SENT, 60 IB_CM_SIDR_REQ_RCVD 61 }; 62 63 enum ib_cm_lap_state { 64 IB_CM_LAP_UNINIT, 65 IB_CM_LAP_IDLE, 66 IB_CM_LAP_SENT, 67 IB_CM_LAP_RCVD, 68 IB_CM_MRA_LAP_SENT, 69 IB_CM_MRA_LAP_RCVD, 70 }; 71 72 enum ib_cm_event_type { 73 IB_CM_REQ_ERROR, 74 IB_CM_REQ_RECEIVED, 75 IB_CM_REP_ERROR, 76 IB_CM_REP_RECEIVED, 77 IB_CM_RTU_RECEIVED, 78 IB_CM_USER_ESTABLISHED, 79 IB_CM_DREQ_ERROR, 80 IB_CM_DREQ_RECEIVED, 81 IB_CM_DREP_RECEIVED, 82 IB_CM_TIMEWAIT_EXIT, 83 IB_CM_MRA_RECEIVED, 84 IB_CM_REJ_RECEIVED, 85 IB_CM_LAP_ERROR, 86 IB_CM_LAP_RECEIVED, 87 IB_CM_APR_RECEIVED, 88 IB_CM_SIDR_REQ_ERROR, 89 IB_CM_SIDR_REQ_RECEIVED, 90 IB_CM_SIDR_REP_RECEIVED 91 }; 92 93 enum ib_cm_data_size { 94 IB_CM_REQ_PRIVATE_DATA_SIZE = 92, 95 IB_CM_MRA_PRIVATE_DATA_SIZE = 222, 96 IB_CM_REJ_PRIVATE_DATA_SIZE = 148, 97 IB_CM_REP_PRIVATE_DATA_SIZE = 196, 98 IB_CM_RTU_PRIVATE_DATA_SIZE = 224, 99 IB_CM_DREQ_PRIVATE_DATA_SIZE = 220, 100 IB_CM_DREP_PRIVATE_DATA_SIZE = 224, 101 IB_CM_REJ_ARI_LENGTH = 72, 102 IB_CM_LAP_PRIVATE_DATA_SIZE = 168, 103 IB_CM_APR_PRIVATE_DATA_SIZE = 148, 104 IB_CM_APR_INFO_LENGTH = 72, 105 IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE = 216, 106 IB_CM_SIDR_REP_PRIVATE_DATA_SIZE = 136, 107 IB_CM_SIDR_REP_INFO_LENGTH = 72, 108 /* compare done u32 at a time */ 109 IB_CM_COMPARE_SIZE = (64 / sizeof(u32)) 110 }; 111 112 struct ib_cm_id; 113 114 struct ib_cm_req_event_param { 115 struct ib_cm_id *listen_id; 116 u8 port; 117 118 struct ib_sa_path_rec *primary_path; 119 struct ib_sa_path_rec *alternate_path; 120 121 __be64 remote_ca_guid; 122 u32 remote_qkey; 123 u32 remote_qpn; 124 enum ib_qp_type qp_type; 125 126 u32 starting_psn; 127 u8 responder_resources; 128 u8 initiator_depth; 129 unsigned int local_cm_response_timeout:5; 130 unsigned int flow_control:1; 131 unsigned int remote_cm_response_timeout:5; 132 unsigned int retry_count:3; 133 unsigned int rnr_retry_count:3; 134 unsigned int srq:1; 135 }; 136 137 struct ib_cm_rep_event_param { 138 __be64 remote_ca_guid; 139 u32 remote_qkey; 140 u32 remote_qpn; 141 u32 starting_psn; 142 u8 responder_resources; 143 u8 initiator_depth; 144 unsigned int target_ack_delay:5; 145 unsigned int failover_accepted:2; 146 unsigned int flow_control:1; 147 unsigned int rnr_retry_count:3; 148 unsigned int srq:1; 149 }; 150 151 enum ib_cm_rej_reason { 152 IB_CM_REJ_NO_QP = 1, 153 IB_CM_REJ_NO_EEC = 2, 154 IB_CM_REJ_NO_RESOURCES = 3, 155 IB_CM_REJ_TIMEOUT = 4, 156 IB_CM_REJ_UNSUPPORTED = 5, 157 IB_CM_REJ_INVALID_COMM_ID = 6, 158 IB_CM_REJ_INVALID_COMM_INSTANCE = 7, 159 IB_CM_REJ_INVALID_SERVICE_ID = 8, 160 IB_CM_REJ_INVALID_TRANSPORT_TYPE = 9, 161 IB_CM_REJ_STALE_CONN = 10, 162 IB_CM_REJ_RDC_NOT_EXIST = 11, 163 IB_CM_REJ_INVALID_GID = 12, 164 IB_CM_REJ_INVALID_LID = 13, 165 IB_CM_REJ_INVALID_SL = 14, 166 IB_CM_REJ_INVALID_TRAFFIC_CLASS = 15, 167 IB_CM_REJ_INVALID_HOP_LIMIT = 16, 168 IB_CM_REJ_INVALID_PACKET_RATE = 17, 169 IB_CM_REJ_INVALID_ALT_GID = 18, 170 IB_CM_REJ_INVALID_ALT_LID = 19, 171 IB_CM_REJ_INVALID_ALT_SL = 20, 172 IB_CM_REJ_INVALID_ALT_TRAFFIC_CLASS = 21, 173 IB_CM_REJ_INVALID_ALT_HOP_LIMIT = 22, 174 IB_CM_REJ_INVALID_ALT_PACKET_RATE = 23, 175 IB_CM_REJ_PORT_CM_REDIRECT = 24, 176 IB_CM_REJ_PORT_REDIRECT = 25, 177 IB_CM_REJ_INVALID_MTU = 26, 178 IB_CM_REJ_INSUFFICIENT_RESP_RESOURCES = 27, 179 IB_CM_REJ_CONSUMER_DEFINED = 28, 180 IB_CM_REJ_INVALID_RNR_RETRY = 29, 181 IB_CM_REJ_DUPLICATE_LOCAL_COMM_ID = 30, 182 IB_CM_REJ_INVALID_CLASS_VERSION = 31, 183 IB_CM_REJ_INVALID_FLOW_LABEL = 32, 184 IB_CM_REJ_INVALID_ALT_FLOW_LABEL = 33 185 }; 186 187 struct ib_cm_rej_event_param { 188 enum ib_cm_rej_reason reason; 189 void *ari; 190 u8 ari_length; 191 }; 192 193 struct ib_cm_mra_event_param { 194 u8 service_timeout; 195 }; 196 197 struct ib_cm_lap_event_param { 198 struct ib_sa_path_rec *alternate_path; 199 }; 200 201 enum ib_cm_apr_status { 202 IB_CM_APR_SUCCESS, 203 IB_CM_APR_INVALID_COMM_ID, 204 IB_CM_APR_UNSUPPORTED, 205 IB_CM_APR_REJECT, 206 IB_CM_APR_REDIRECT, 207 IB_CM_APR_IS_CURRENT, 208 IB_CM_APR_INVALID_QPN_EECN, 209 IB_CM_APR_INVALID_LID, 210 IB_CM_APR_INVALID_GID, 211 IB_CM_APR_INVALID_FLOW_LABEL, 212 IB_CM_APR_INVALID_TCLASS, 213 IB_CM_APR_INVALID_HOP_LIMIT, 214 IB_CM_APR_INVALID_PACKET_RATE, 215 IB_CM_APR_INVALID_SL 216 }; 217 218 struct ib_cm_apr_event_param { 219 enum ib_cm_apr_status ap_status; 220 void *apr_info; 221 u8 info_len; 222 }; 223 224 struct ib_cm_sidr_req_event_param { 225 struct ib_cm_id *listen_id; 226 u8 port; 227 u16 pkey; 228 }; 229 230 enum ib_cm_sidr_status { 231 IB_SIDR_SUCCESS, 232 IB_SIDR_UNSUPPORTED, 233 IB_SIDR_REJECT, 234 IB_SIDR_NO_QP, 235 IB_SIDR_REDIRECT, 236 IB_SIDR_UNSUPPORTED_VERSION 237 }; 238 239 struct ib_cm_sidr_rep_event_param { 240 enum ib_cm_sidr_status status; 241 u32 qkey; 242 u32 qpn; 243 void *info; 244 u8 info_len; 245 }; 246 247 struct ib_cm_event { 248 enum ib_cm_event_type event; 249 union { 250 struct ib_cm_req_event_param req_rcvd; 251 struct ib_cm_rep_event_param rep_rcvd; 252 /* No data for RTU received events. */ 253 struct ib_cm_rej_event_param rej_rcvd; 254 struct ib_cm_mra_event_param mra_rcvd; 255 struct ib_cm_lap_event_param lap_rcvd; 256 struct ib_cm_apr_event_param apr_rcvd; 257 /* No data for DREQ/DREP received events. */ 258 struct ib_cm_sidr_req_event_param sidr_req_rcvd; 259 struct ib_cm_sidr_rep_event_param sidr_rep_rcvd; 260 enum ib_wc_status send_status; 261 } param; 262 263 void *private_data; 264 }; 265 266 #define CM_REQ_ATTR_ID cpu_to_be16(0x0010) 267 #define CM_MRA_ATTR_ID cpu_to_be16(0x0011) 268 #define CM_REJ_ATTR_ID cpu_to_be16(0x0012) 269 #define CM_REP_ATTR_ID cpu_to_be16(0x0013) 270 #define CM_RTU_ATTR_ID cpu_to_be16(0x0014) 271 #define CM_DREQ_ATTR_ID cpu_to_be16(0x0015) 272 #define CM_DREP_ATTR_ID cpu_to_be16(0x0016) 273 #define CM_SIDR_REQ_ATTR_ID cpu_to_be16(0x0017) 274 #define CM_SIDR_REP_ATTR_ID cpu_to_be16(0x0018) 275 #define CM_LAP_ATTR_ID cpu_to_be16(0x0019) 276 #define CM_APR_ATTR_ID cpu_to_be16(0x001A) 277 278 /** 279 * ib_cm_handler - User-defined callback to process communication events. 280 * @cm_id: Communication identifier associated with the reported event. 281 * @event: Information about the communication event. 282 * 283 * IB_CM_REQ_RECEIVED and IB_CM_SIDR_REQ_RECEIVED communication events 284 * generated as a result of listen requests result in the allocation of a 285 * new @cm_id. The new @cm_id is returned to the user through this callback. 286 * Clients are responsible for destroying the new @cm_id. For peer-to-peer 287 * IB_CM_REQ_RECEIVED and all other events, the returned @cm_id corresponds 288 * to a user's existing communication identifier. 289 * 290 * Users may not call ib_destroy_cm_id while in the context of this callback; 291 * however, returning a non-zero value instructs the communication manager to 292 * destroy the @cm_id after the callback completes. 293 */ 294 typedef int (*ib_cm_handler)(struct ib_cm_id *cm_id, 295 struct ib_cm_event *event); 296 297 struct ib_cm_id { 298 ib_cm_handler cm_handler; 299 void *context; 300 struct ib_device *device; 301 __be64 service_id; 302 __be64 service_mask; 303 enum ib_cm_state state; /* internal CM/debug use */ 304 enum ib_cm_lap_state lap_state; /* internal CM/debug use */ 305 __be32 local_id; 306 __be32 remote_id; 307 u32 remote_cm_qpn; /* 1 unless redirected */ 308 }; 309 310 /** 311 * ib_create_cm_id - Allocate a communication identifier. 312 * @device: Device associated with the cm_id. All related communication will 313 * be associated with the specified device. 314 * @cm_handler: Callback invoked to notify the user of CM events. 315 * @context: User specified context associated with the communication 316 * identifier. 317 * 318 * Communication identifiers are used to track connection states, service 319 * ID resolution requests, and listen requests. 320 */ 321 struct ib_cm_id *ib_create_cm_id(struct ib_device *device, 322 ib_cm_handler cm_handler, 323 void *context); 324 325 /** 326 * ib_destroy_cm_id - Destroy a connection identifier. 327 * @cm_id: Connection identifier to destroy. 328 * 329 * This call blocks until the connection identifier is destroyed. 330 */ 331 void ib_destroy_cm_id(struct ib_cm_id *cm_id); 332 333 #define IB_SERVICE_ID_AGN_MASK cpu_to_be64(0xFF00000000000000ULL) 334 #define IB_CM_ASSIGN_SERVICE_ID cpu_to_be64(0x0200000000000000ULL) 335 #define IB_CMA_SERVICE_ID cpu_to_be64(0x0000000001000000ULL) 336 #define IB_CMA_SERVICE_ID_MASK cpu_to_be64(0xFFFFFFFFFF000000ULL) 337 #define IB_SDP_SERVICE_ID cpu_to_be64(0x0000000000010000ULL) 338 #define IB_SDP_SERVICE_ID_MASK cpu_to_be64(0xFFFFFFFFFFFF0000ULL) 339 340 struct ib_cm_compare_data { 341 u32 data[IB_CM_COMPARE_SIZE]; 342 u32 mask[IB_CM_COMPARE_SIZE]; 343 }; 344 345 /** 346 * ib_cm_listen - Initiates listening on the specified service ID for 347 * connection and service ID resolution requests. 348 * @cm_id: Connection identifier associated with the listen request. 349 * @service_id: Service identifier matched against incoming connection 350 * and service ID resolution requests. The service ID should be specified 351 * network-byte order. If set to IB_CM_ASSIGN_SERVICE_ID, the CM will 352 * assign a service ID to the caller. 353 * @service_mask: Mask applied to service ID used to listen across a 354 * range of service IDs. If set to 0, the service ID is matched 355 * exactly. This parameter is ignored if %service_id is set to 356 * IB_CM_ASSIGN_SERVICE_ID. 357 * @compare_data: This parameter is optional. It specifies data that must 358 * appear in the private data of a connection request for the specified 359 * listen request. 360 */ 361 int ib_cm_listen(struct ib_cm_id *cm_id, __be64 service_id, __be64 service_mask, 362 struct ib_cm_compare_data *compare_data); 363 364 struct ib_cm_req_param { 365 struct ib_sa_path_rec *primary_path; 366 struct ib_sa_path_rec *alternate_path; 367 __be64 service_id; 368 u32 qp_num; 369 enum ib_qp_type qp_type; 370 u32 starting_psn; 371 const void *private_data; 372 u8 private_data_len; 373 u8 peer_to_peer; 374 u8 responder_resources; 375 u8 initiator_depth; 376 u8 remote_cm_response_timeout; 377 u8 flow_control; 378 u8 local_cm_response_timeout; 379 u8 retry_count; 380 u8 rnr_retry_count; 381 u8 max_cm_retries; 382 u8 srq; 383 }; 384 385 /** 386 * ib_send_cm_req - Sends a connection request to the remote node. 387 * @cm_id: Connection identifier that will be associated with the 388 * connection request. 389 * @param: Connection request information needed to establish the 390 * connection. 391 */ 392 int ib_send_cm_req(struct ib_cm_id *cm_id, 393 struct ib_cm_req_param *param); 394 395 struct ib_cm_rep_param { 396 u32 qp_num; 397 u32 starting_psn; 398 const void *private_data; 399 u8 private_data_len; 400 u8 responder_resources; 401 u8 initiator_depth; 402 u8 failover_accepted; 403 u8 flow_control; 404 u8 rnr_retry_count; 405 u8 srq; 406 }; 407 408 /** 409 * ib_send_cm_rep - Sends a connection reply in response to a connection 410 * request. 411 * @cm_id: Connection identifier that will be associated with the 412 * connection request. 413 * @param: Connection reply information needed to establish the 414 * connection. 415 */ 416 int ib_send_cm_rep(struct ib_cm_id *cm_id, 417 struct ib_cm_rep_param *param); 418 419 /** 420 * ib_send_cm_rtu - Sends a connection ready to use message in response 421 * to a connection reply message. 422 * @cm_id: Connection identifier associated with the connection request. 423 * @private_data: Optional user-defined private data sent with the 424 * ready to use message. 425 * @private_data_len: Size of the private data buffer, in bytes. 426 */ 427 int ib_send_cm_rtu(struct ib_cm_id *cm_id, 428 const void *private_data, 429 u8 private_data_len); 430 431 /** 432 * ib_send_cm_dreq - Sends a disconnection request for an existing 433 * connection. 434 * @cm_id: Connection identifier associated with the connection being 435 * released. 436 * @private_data: Optional user-defined private data sent with the 437 * disconnection request message. 438 * @private_data_len: Size of the private data buffer, in bytes. 439 */ 440 int ib_send_cm_dreq(struct ib_cm_id *cm_id, 441 const void *private_data, 442 u8 private_data_len); 443 444 /** 445 * ib_send_cm_drep - Sends a disconnection reply to a disconnection request. 446 * @cm_id: Connection identifier associated with the connection being 447 * released. 448 * @private_data: Optional user-defined private data sent with the 449 * disconnection reply message. 450 * @private_data_len: Size of the private data buffer, in bytes. 451 * 452 * If the cm_id is in the correct state, the CM will transition the connection 453 * to the timewait state, even if an error occurs sending the DREP message. 454 */ 455 int ib_send_cm_drep(struct ib_cm_id *cm_id, 456 const void *private_data, 457 u8 private_data_len); 458 459 /** 460 * ib_cm_notify - Notifies the CM of an event reported to the consumer. 461 * @cm_id: Connection identifier to transition to established. 462 * @event: Type of event. 463 * 464 * This routine should be invoked by users to notify the CM of relevant 465 * communication events. Events that should be reported to the CM and 466 * when to report them are: 467 * 468 * IB_EVENT_COMM_EST - Used when a message is received on a connected 469 * QP before an RTU has been received. 470 * IB_EVENT_PATH_MIG - Notifies the CM that the connection has failed over 471 * to the alternate path. 472 */ 473 int ib_cm_notify(struct ib_cm_id *cm_id, enum ib_event_type event); 474 475 /** 476 * ib_send_cm_rej - Sends a connection rejection message to the 477 * remote node. 478 * @cm_id: Connection identifier associated with the connection being 479 * rejected. 480 * @reason: Reason for the connection request rejection. 481 * @ari: Optional additional rejection information. 482 * @ari_length: Size of the additional rejection information, in bytes. 483 * @private_data: Optional user-defined private data sent with the 484 * rejection message. 485 * @private_data_len: Size of the private data buffer, in bytes. 486 */ 487 int ib_send_cm_rej(struct ib_cm_id *cm_id, 488 enum ib_cm_rej_reason reason, 489 void *ari, 490 u8 ari_length, 491 const void *private_data, 492 u8 private_data_len); 493 494 #define IB_CM_MRA_FLAG_DELAY 0x80 /* Send MRA only after a duplicate msg */ 495 496 /** 497 * ib_send_cm_mra - Sends a message receipt acknowledgement to a connection 498 * message. 499 * @cm_id: Connection identifier associated with the connection message. 500 * @service_timeout: The lower 5-bits specify the maximum time required for 501 * the sender to reply to the connection message. The upper 3-bits 502 * specify additional control flags. 503 * @private_data: Optional user-defined private data sent with the 504 * message receipt acknowledgement. 505 * @private_data_len: Size of the private data buffer, in bytes. 506 */ 507 int ib_send_cm_mra(struct ib_cm_id *cm_id, 508 u8 service_timeout, 509 const void *private_data, 510 u8 private_data_len); 511 512 /** 513 * ib_send_cm_lap - Sends a load alternate path request. 514 * @cm_id: Connection identifier associated with the load alternate path 515 * message. 516 * @alternate_path: A path record that identifies the alternate path to 517 * load. 518 * @private_data: Optional user-defined private data sent with the 519 * load alternate path message. 520 * @private_data_len: Size of the private data buffer, in bytes. 521 */ 522 int ib_send_cm_lap(struct ib_cm_id *cm_id, 523 struct ib_sa_path_rec *alternate_path, 524 const void *private_data, 525 u8 private_data_len); 526 527 /** 528 * ib_cm_init_qp_attr - Initializes the QP attributes for use in transitioning 529 * to a specified QP state. 530 * @cm_id: Communication identifier associated with the QP attributes to 531 * initialize. 532 * @qp_attr: On input, specifies the desired QP state. On output, the 533 * mandatory and desired optional attributes will be set in order to 534 * modify the QP to the specified state. 535 * @qp_attr_mask: The QP attribute mask that may be used to transition the 536 * QP to the specified state. 537 * 538 * Users must set the @qp_attr->qp_state to the desired QP state. This call 539 * will set all required attributes for the given transition, along with 540 * known optional attributes. Users may override the attributes returned from 541 * this call before calling ib_modify_qp. 542 */ 543 int ib_cm_init_qp_attr(struct ib_cm_id *cm_id, 544 struct ib_qp_attr *qp_attr, 545 int *qp_attr_mask); 546 547 /** 548 * ib_send_cm_apr - Sends an alternate path response message in response to 549 * a load alternate path request. 550 * @cm_id: Connection identifier associated with the alternate path response. 551 * @status: Reply status sent with the alternate path response. 552 * @info: Optional additional information sent with the alternate path 553 * response. 554 * @info_length: Size of the additional information, in bytes. 555 * @private_data: Optional user-defined private data sent with the 556 * alternate path response message. 557 * @private_data_len: Size of the private data buffer, in bytes. 558 */ 559 int ib_send_cm_apr(struct ib_cm_id *cm_id, 560 enum ib_cm_apr_status status, 561 void *info, 562 u8 info_length, 563 const void *private_data, 564 u8 private_data_len); 565 566 struct ib_cm_sidr_req_param { 567 struct ib_sa_path_rec *path; 568 __be64 service_id; 569 int timeout_ms; 570 const void *private_data; 571 u8 private_data_len; 572 u8 max_cm_retries; 573 }; 574 575 /** 576 * ib_send_cm_sidr_req - Sends a service ID resolution request to the 577 * remote node. 578 * @cm_id: Communication identifier that will be associated with the 579 * service ID resolution request. 580 * @param: Service ID resolution request information. 581 */ 582 int ib_send_cm_sidr_req(struct ib_cm_id *cm_id, 583 struct ib_cm_sidr_req_param *param); 584 585 struct ib_cm_sidr_rep_param { 586 u32 qp_num; 587 u32 qkey; 588 enum ib_cm_sidr_status status; 589 const void *info; 590 u8 info_length; 591 const void *private_data; 592 u8 private_data_len; 593 }; 594 595 /** 596 * ib_send_cm_sidr_rep - Sends a service ID resolution reply to the 597 * remote node. 598 * @cm_id: Communication identifier associated with the received service ID 599 * resolution request. 600 * @param: Service ID resolution reply information. 601 */ 602 int ib_send_cm_sidr_rep(struct ib_cm_id *cm_id, 603 struct ib_cm_sidr_rep_param *param); 604 605 #endif /* IB_CM_H */ 606