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 */ 42extern struct class cm_class; 43 44enum 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 63enum 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 72enum 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 93enum 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 IB_CM_COMPARE_SIZE = 64 109}; 110 111struct ib_cm_id; 112 113struct ib_cm_req_event_param { 114 struct ib_cm_id *listen_id; 115 u8 port; 116 117 struct ib_sa_path_rec *primary_path; 118 struct ib_sa_path_rec *alternate_path; 119 120 __be64 remote_ca_guid; 121 u32 remote_qkey; 122 u32 remote_qpn; 123 enum ib_qp_type qp_type; 124 125 u32 starting_psn; 126 u8 responder_resources; 127 u8 initiator_depth; 128 unsigned int local_cm_response_timeout:5; 129 unsigned int flow_control:1; 130 unsigned int remote_cm_response_timeout:5; 131 unsigned int retry_count:3; 132 unsigned int rnr_retry_count:3; 133 unsigned int srq:1; 134}; 135 136struct ib_cm_rep_event_param { 137 __be64 remote_ca_guid; 138 u32 remote_qkey; 139 u32 remote_qpn; 140 u32 starting_psn; 141 u8 responder_resources; 142 u8 initiator_depth; 143 unsigned int target_ack_delay:5; 144 unsigned int failover_accepted:2; 145 unsigned int flow_control:1; 146 unsigned int rnr_retry_count:3; 147 unsigned int srq:1; 148}; 149 150enum ib_cm_rej_reason { 151 IB_CM_REJ_NO_QP = 1, 152 IB_CM_REJ_NO_EEC = 2, 153 IB_CM_REJ_NO_RESOURCES = 3, 154 IB_CM_REJ_TIMEOUT = 4, 155 IB_CM_REJ_UNSUPPORTED = 5, 156 IB_CM_REJ_INVALID_COMM_ID = 6, 157 IB_CM_REJ_INVALID_COMM_INSTANCE = 7, 158 IB_CM_REJ_INVALID_SERVICE_ID = 8, 159 IB_CM_REJ_INVALID_TRANSPORT_TYPE = 9, 160 IB_CM_REJ_STALE_CONN = 10, 161 IB_CM_REJ_RDC_NOT_EXIST = 11, 162 IB_CM_REJ_INVALID_GID = 12, 163 IB_CM_REJ_INVALID_LID = 13, 164 IB_CM_REJ_INVALID_SL = 14, 165 IB_CM_REJ_INVALID_TRAFFIC_CLASS = 15, 166 IB_CM_REJ_INVALID_HOP_LIMIT = 16, 167 IB_CM_REJ_INVALID_PACKET_RATE = 17, 168 IB_CM_REJ_INVALID_ALT_GID = 18, 169 IB_CM_REJ_INVALID_ALT_LID = 19, 170 IB_CM_REJ_INVALID_ALT_SL = 20, 171 IB_CM_REJ_INVALID_ALT_TRAFFIC_CLASS = 21, 172 IB_CM_REJ_INVALID_ALT_HOP_LIMIT = 22, 173 IB_CM_REJ_INVALID_ALT_PACKET_RATE = 23, 174 IB_CM_REJ_PORT_CM_REDIRECT = 24, 175 IB_CM_REJ_PORT_REDIRECT = 25, 176 IB_CM_REJ_INVALID_MTU = 26, 177 IB_CM_REJ_INSUFFICIENT_RESP_RESOURCES = 27, 178 IB_CM_REJ_CONSUMER_DEFINED = 28, 179 IB_CM_REJ_INVALID_RNR_RETRY = 29, 180 IB_CM_REJ_DUPLICATE_LOCAL_COMM_ID = 30, 181 IB_CM_REJ_INVALID_CLASS_VERSION = 31, 182 IB_CM_REJ_INVALID_FLOW_LABEL = 32, 183 IB_CM_REJ_INVALID_ALT_FLOW_LABEL = 33 184}; 185 186struct ib_cm_rej_event_param { 187 enum ib_cm_rej_reason reason; 188 void *ari; 189 u8 ari_length; 190}; 191 192struct ib_cm_mra_event_param { 193 u8 service_timeout; 194}; 195 196struct ib_cm_lap_event_param { 197 struct ib_sa_path_rec *alternate_path; 198}; 199 200enum ib_cm_apr_status { 201 IB_CM_APR_SUCCESS, 202 IB_CM_APR_INVALID_COMM_ID, 203 IB_CM_APR_UNSUPPORTED, 204 IB_CM_APR_REJECT, 205 IB_CM_APR_REDIRECT, 206 IB_CM_APR_IS_CURRENT, 207 IB_CM_APR_INVALID_QPN_EECN, 208 IB_CM_APR_INVALID_LID, 209 IB_CM_APR_INVALID_GID, 210 IB_CM_APR_INVALID_FLOW_LABEL, 211 IB_CM_APR_INVALID_TCLASS, 212 IB_CM_APR_INVALID_HOP_LIMIT, 213 IB_CM_APR_INVALID_PACKET_RATE, 214 IB_CM_APR_INVALID_SL 215}; 216 217struct ib_cm_apr_event_param { 218 enum ib_cm_apr_status ap_status; 219 void *apr_info; 220 u8 info_len; 221}; 222 223struct ib_cm_sidr_req_event_param { 224 struct ib_cm_id *listen_id; 225 u8 port; 226 u16 pkey; 227}; 228 229enum ib_cm_sidr_status { 230 IB_SIDR_SUCCESS, 231 IB_SIDR_UNSUPPORTED, 232 IB_SIDR_REJECT, 233 IB_SIDR_NO_QP, 234 IB_SIDR_REDIRECT, 235 IB_SIDR_UNSUPPORTED_VERSION 236}; 237 238struct ib_cm_sidr_rep_event_param { 239 enum ib_cm_sidr_status status; 240 u32 qkey; 241 u32 qpn; 242 void *info; 243 u8 info_len; 244}; 245 246struct ib_cm_event { 247 enum ib_cm_event_type event; 248 union { 249 struct ib_cm_req_event_param req_rcvd; 250 struct ib_cm_rep_event_param rep_rcvd; 251 /* No data for RTU received events. */ 252 struct ib_cm_rej_event_param rej_rcvd; 253 struct ib_cm_mra_event_param mra_rcvd; 254 struct ib_cm_lap_event_param lap_rcvd; 255 struct ib_cm_apr_event_param apr_rcvd; 256 /* No data for DREQ/DREP received events. */ 257 struct ib_cm_sidr_req_event_param sidr_req_rcvd; 258 struct ib_cm_sidr_rep_event_param sidr_rep_rcvd; 259 enum ib_wc_status send_status; 260 } param; 261 262 void *private_data; 263}; 264 265#define CM_REQ_ATTR_ID cpu_to_be16(0x0010) 266#define CM_MRA_ATTR_ID cpu_to_be16(0x0011) 267#define CM_REJ_ATTR_ID cpu_to_be16(0x0012) 268#define CM_REP_ATTR_ID cpu_to_be16(0x0013) 269#define CM_RTU_ATTR_ID cpu_to_be16(0x0014) 270#define CM_DREQ_ATTR_ID cpu_to_be16(0x0015) 271#define CM_DREP_ATTR_ID cpu_to_be16(0x0016) 272#define CM_SIDR_REQ_ATTR_ID cpu_to_be16(0x0017) 273#define CM_SIDR_REP_ATTR_ID cpu_to_be16(0x0018) 274#define CM_LAP_ATTR_ID cpu_to_be16(0x0019) 275#define CM_APR_ATTR_ID cpu_to_be16(0x001A) 276 277/** 278 * ib_cm_handler - User-defined callback to process communication events. 279 * @cm_id: Communication identifier associated with the reported event. 280 * @event: Information about the communication event. 281 * 282 * IB_CM_REQ_RECEIVED and IB_CM_SIDR_REQ_RECEIVED communication events 283 * generated as a result of listen requests result in the allocation of a 284 * new @cm_id. The new @cm_id is returned to the user through this callback. 285 * Clients are responsible for destroying the new @cm_id. For peer-to-peer 286 * IB_CM_REQ_RECEIVED and all other events, the returned @cm_id corresponds 287 * to a user's existing communication identifier. 288 * 289 * Users may not call ib_destroy_cm_id while in the context of this callback; 290 * however, returning a non-zero value instructs the communication manager to 291 * destroy the @cm_id after the callback completes. 292 */ 293typedef int (*ib_cm_handler)(struct ib_cm_id *cm_id, 294 struct ib_cm_event *event); 295 296struct ib_cm_id { 297 ib_cm_handler cm_handler; 298 void *context; 299 struct ib_device *device; 300 __be64 service_id; 301 __be64 service_mask; 302 enum ib_cm_state state; /* internal CM/debug use */ 303 enum ib_cm_lap_state lap_state; /* internal CM/debug use */ 304 __be32 local_id; 305 __be32 remote_id; 306 u32 remote_cm_qpn; /* 1 unless redirected */ 307}; 308 309/** 310 * ib_create_cm_id - Allocate a communication identifier. 311 * @device: Device associated with the cm_id. All related communication will 312 * be associated with the specified device. 313 * @cm_handler: Callback invoked to notify the user of CM events. 314 * @context: User specified context associated with the communication 315 * identifier. 316 * 317 * Communication identifiers are used to track connection states, service 318 * ID resolution requests, and listen requests. 319 */ 320struct ib_cm_id *ib_create_cm_id(struct ib_device *device, 321 ib_cm_handler cm_handler, 322 void *context); 323 324/** 325 * ib_destroy_cm_id - Destroy a connection identifier. 326 * @cm_id: Connection identifier to destroy. 327 * 328 * This call blocks until the connection identifier is destroyed. 329 */ 330void ib_destroy_cm_id(struct ib_cm_id *cm_id); 331 332#define IB_SERVICE_ID_AGN_MASK cpu_to_be64(0xFF00000000000000ULL) 333#define IB_CM_ASSIGN_SERVICE_ID cpu_to_be64(0x0200000000000000ULL) 334#define IB_CMA_SERVICE_ID cpu_to_be64(0x0000000001000000ULL) 335#define IB_CMA_SERVICE_ID_MASK cpu_to_be64(0xFFFFFFFFFF000000ULL) 336#define IB_SDP_SERVICE_ID cpu_to_be64(0x0000000000010000ULL) 337#define IB_SDP_SERVICE_ID_MASK cpu_to_be64(0xFFFFFFFFFFFF0000ULL) 338 339struct ib_cm_compare_data { 340 u8 data[IB_CM_COMPARE_SIZE]; 341 u8 mask[IB_CM_COMPARE_SIZE]; 342}; 343 344/** 345 * ib_cm_listen - Initiates listening on the specified service ID for 346 * connection and service ID resolution requests. 347 * @cm_id: Connection identifier associated with the listen request. 348 * @service_id: Service identifier matched against incoming connection 349 * and service ID resolution requests. The service ID should be specified 350 * network-byte order. If set to IB_CM_ASSIGN_SERVICE_ID, the CM will 351 * assign a service ID to the caller. 352 * @service_mask: Mask applied to service ID used to listen across a 353 * range of service IDs. If set to 0, the service ID is matched 354 * exactly. This parameter is ignored if %service_id is set to 355 * IB_CM_ASSIGN_SERVICE_ID. 356 * @compare_data: This parameter is optional. It specifies data that must 357 * appear in the private data of a connection request for the specified 358 * listen request. 359 */ 360int ib_cm_listen(struct ib_cm_id *cm_id, __be64 service_id, __be64 service_mask, 361 struct ib_cm_compare_data *compare_data); 362 363struct ib_cm_req_param { 364 struct ib_sa_path_rec *primary_path; 365 struct ib_sa_path_rec *alternate_path; 366 __be64 service_id; 367 u32 qp_num; 368 enum ib_qp_type qp_type; 369 u32 starting_psn; 370 const void *private_data; 371 u8 private_data_len; 372 u8 peer_to_peer; 373 u8 responder_resources; 374 u8 initiator_depth; 375 u8 remote_cm_response_timeout; 376 u8 flow_control; 377 u8 local_cm_response_timeout; 378 u8 retry_count; 379 u8 rnr_retry_count; 380 u8 max_cm_retries; 381 u8 srq; 382}; 383 384/** 385 * ib_send_cm_req - Sends a connection request to the remote node. 386 * @cm_id: Connection identifier that will be associated with the 387 * connection request. 388 * @param: Connection request information needed to establish the 389 * connection. 390 */ 391int ib_send_cm_req(struct ib_cm_id *cm_id, 392 struct ib_cm_req_param *param); 393 394struct ib_cm_rep_param { 395 u32 qp_num; 396 u32 starting_psn; 397 const void *private_data; 398 u8 private_data_len; 399 u8 responder_resources; 400 u8 initiator_depth; 401 u8 failover_accepted; 402 u8 flow_control; 403 u8 rnr_retry_count; 404 u8 srq; 405}; 406 407/** 408 * ib_send_cm_rep - Sends a connection reply in response to a connection 409 * request. 410 * @cm_id: Connection identifier that will be associated with the 411 * connection request. 412 * @param: Connection reply information needed to establish the 413 * connection. 414 */ 415int ib_send_cm_rep(struct ib_cm_id *cm_id, 416 struct ib_cm_rep_param *param); 417 418/** 419 * ib_send_cm_rtu - Sends a connection ready to use message in response 420 * to a connection reply message. 421 * @cm_id: Connection identifier associated with the connection request. 422 * @private_data: Optional user-defined private data sent with the 423 * ready to use message. 424 * @private_data_len: Size of the private data buffer, in bytes. 425 */ 426int ib_send_cm_rtu(struct ib_cm_id *cm_id, 427 const void *private_data, 428 u8 private_data_len); 429 430/** 431 * ib_send_cm_dreq - Sends a disconnection request for an existing 432 * connection. 433 * @cm_id: Connection identifier associated with the connection being 434 * released. 435 * @private_data: Optional user-defined private data sent with the 436 * disconnection request message. 437 * @private_data_len: Size of the private data buffer, in bytes. 438 */ 439int ib_send_cm_dreq(struct ib_cm_id *cm_id, 440 const void *private_data, 441 u8 private_data_len); 442 443/** 444 * ib_send_cm_drep - Sends a disconnection reply to a disconnection request. 445 * @cm_id: Connection identifier associated with the connection being 446 * released. 447 * @private_data: Optional user-defined private data sent with the 448 * disconnection reply message. 449 * @private_data_len: Size of the private data buffer, in bytes. 450 * 451 * If the cm_id is in the correct state, the CM will transition the connection 452 * to the timewait state, even if an error occurs sending the DREP message. 453 */ 454int ib_send_cm_drep(struct ib_cm_id *cm_id, 455 const void *private_data, 456 u8 private_data_len); 457 458/** 459 * ib_cm_notify - Notifies the CM of an event reported to the consumer. 460 * @cm_id: Connection identifier to transition to established. 461 * @event: Type of event. 462 * 463 * This routine should be invoked by users to notify the CM of relevant 464 * communication events. Events that should be reported to the CM and 465 * when to report them are: 466 * 467 * IB_EVENT_COMM_EST - Used when a message is received on a connected 468 * QP before an RTU has been received. 469 * IB_EVENT_PATH_MIG - Notifies the CM that the connection has failed over 470 * to the alternate path. 471 */ 472int ib_cm_notify(struct ib_cm_id *cm_id, enum ib_event_type event); 473 474/** 475 * ib_send_cm_rej - Sends a connection rejection message to the 476 * remote node. 477 * @cm_id: Connection identifier associated with the connection being 478 * rejected. 479 * @reason: Reason for the connection request rejection. 480 * @ari: Optional additional rejection information. 481 * @ari_length: Size of the additional rejection information, in bytes. 482 * @private_data: Optional user-defined private data sent with the 483 * rejection message. 484 * @private_data_len: Size of the private data buffer, in bytes. 485 */ 486int ib_send_cm_rej(struct ib_cm_id *cm_id, 487 enum ib_cm_rej_reason reason, 488 void *ari, 489 u8 ari_length, 490 const void *private_data, 491 u8 private_data_len); 492 493#define IB_CM_MRA_FLAG_DELAY 0x80 /* Send MRA only after a duplicate msg */ 494 495/** 496 * ib_send_cm_mra - Sends a message receipt acknowledgement to a connection 497 * message. 498 * @cm_id: Connection identifier associated with the connection message. 499 * @service_timeout: The lower 5-bits specify the maximum time required for 500 * the sender to reply to to the connection message. The upper 3-bits 501 * specify additional control flags. 502 * @private_data: Optional user-defined private data sent with the 503 * message receipt acknowledgement. 504 * @private_data_len: Size of the private data buffer, in bytes. 505 */ 506int ib_send_cm_mra(struct ib_cm_id *cm_id, 507 u8 service_timeout, 508 const void *private_data, 509 u8 private_data_len); 510 511/** 512 * ib_send_cm_lap - Sends a load alternate path request. 513 * @cm_id: Connection identifier associated with the load alternate path 514 * message. 515 * @alternate_path: A path record that identifies the alternate path to 516 * load. 517 * @private_data: Optional user-defined private data sent with the 518 * load alternate path message. 519 * @private_data_len: Size of the private data buffer, in bytes. 520 */ 521int ib_send_cm_lap(struct ib_cm_id *cm_id, 522 struct ib_sa_path_rec *alternate_path, 523 const void *private_data, 524 u8 private_data_len); 525 526/** 527 * ib_cm_init_qp_attr - Initializes the QP attributes for use in transitioning 528 * to a specified QP state. 529 * @cm_id: Communication identifier associated with the QP attributes to 530 * initialize. 531 * @qp_attr: On input, specifies the desired QP state. On output, the 532 * mandatory and desired optional attributes will be set in order to 533 * modify the QP to the specified state. 534 * @qp_attr_mask: The QP attribute mask that may be used to transition the 535 * QP to the specified state. 536 * 537 * Users must set the @qp_attr->qp_state to the desired QP state. This call 538 * will set all required attributes for the given transition, along with 539 * known optional attributes. Users may override the attributes returned from 540 * this call before calling ib_modify_qp. 541 */ 542int ib_cm_init_qp_attr(struct ib_cm_id *cm_id, 543 struct ib_qp_attr *qp_attr, 544 int *qp_attr_mask); 545 546/** 547 * ib_send_cm_apr - Sends an alternate path response message in response to 548 * a load alternate path request. 549 * @cm_id: Connection identifier associated with the alternate path response. 550 * @status: Reply status sent with the alternate path response. 551 * @info: Optional additional information sent with the alternate path 552 * response. 553 * @info_length: Size of the additional information, in bytes. 554 * @private_data: Optional user-defined private data sent with the 555 * alternate path response message. 556 * @private_data_len: Size of the private data buffer, in bytes. 557 */ 558int ib_send_cm_apr(struct ib_cm_id *cm_id, 559 enum ib_cm_apr_status status, 560 void *info, 561 u8 info_length, 562 const void *private_data, 563 u8 private_data_len); 564 565struct ib_cm_sidr_req_param { 566 struct ib_sa_path_rec *path; 567 __be64 service_id; 568 int timeout_ms; 569 const void *private_data; 570 u8 private_data_len; 571 u8 max_cm_retries; 572}; 573 574/** 575 * ib_send_cm_sidr_req - Sends a service ID resolution request to the 576 * remote node. 577 * @cm_id: Communication identifier that will be associated with the 578 * service ID resolution request. 579 * @param: Service ID resolution request information. 580 */ 581int ib_send_cm_sidr_req(struct ib_cm_id *cm_id, 582 struct ib_cm_sidr_req_param *param); 583 584struct ib_cm_sidr_rep_param { 585 u32 qp_num; 586 u32 qkey; 587 enum ib_cm_sidr_status status; 588 const void *info; 589 u8 info_length; 590 const void *private_data; 591 u8 private_data_len; 592}; 593 594/** 595 * ib_send_cm_sidr_rep - Sends a service ID resolution reply to the 596 * remote node. 597 * @cm_id: Communication identifier associated with the received service ID 598 * resolution request. 599 * @param: Service ID resolution reply information. 600 */ 601int ib_send_cm_sidr_rep(struct ib_cm_id *cm_id, 602 struct ib_cm_sidr_rep_param *param); 603 604#endif /* IB_CM_H */ 605