1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 3 * 4 * Copyright (c) 2004, 2005 Intel Corporation. All rights reserved. 5 * Copyright (c) 2004 Topspin Corporation. All rights reserved. 6 * Copyright (c) 2004 Voltaire Corporation. All rights reserved. 7 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 8 * 9 * This software is available to you under a choice of one of two 10 * licenses. You may choose to be licensed under the terms of the GNU 11 * General Public License (GPL) Version 2, available from the file 12 * COPYING in the main directory of this source tree, or the 13 * OpenIB.org BSD license below: 14 * 15 * Redistribution and use in source and binary forms, with or 16 * without modification, are permitted provided that the following 17 * conditions are met: 18 * 19 * - Redistributions of source code must retain the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer. 22 * 23 * - Redistributions in binary form must reproduce the above 24 * copyright notice, this list of conditions and the following 25 * disclaimer in the documentation and/or other materials 26 * provided with the distribution. 27 * 28 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 29 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 30 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 31 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 32 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 33 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 34 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 35 * SOFTWARE. 36 * 37 * $FreeBSD$ 38 */ 39 40 #if !defined(IB_CM_H) 41 #define IB_CM_H 42 43 #include <rdma/ib_mad.h> 44 #include <rdma/ib_sa.h> 45 46 /* ib_cm and ib_user_cm modules share /sys/class/infiniband_cm */ 47 extern struct class cm_class; 48 49 enum ib_cm_state { 50 IB_CM_IDLE, 51 IB_CM_LISTEN, 52 IB_CM_REQ_SENT, 53 IB_CM_REQ_RCVD, 54 IB_CM_MRA_REQ_SENT, 55 IB_CM_MRA_REQ_RCVD, 56 IB_CM_REP_SENT, 57 IB_CM_REP_RCVD, 58 IB_CM_MRA_REP_SENT, 59 IB_CM_MRA_REP_RCVD, 60 IB_CM_ESTABLISHED, 61 IB_CM_DREQ_SENT, 62 IB_CM_DREQ_RCVD, 63 IB_CM_TIMEWAIT, 64 IB_CM_SIDR_REQ_SENT, 65 IB_CM_SIDR_REQ_RCVD 66 }; 67 68 enum ib_cm_lap_state { 69 IB_CM_LAP_UNINIT, 70 IB_CM_LAP_IDLE, 71 IB_CM_LAP_SENT, 72 IB_CM_LAP_RCVD, 73 IB_CM_MRA_LAP_SENT, 74 IB_CM_MRA_LAP_RCVD, 75 }; 76 77 enum ib_cm_event_type { 78 IB_CM_REQ_ERROR, 79 IB_CM_REQ_RECEIVED, 80 IB_CM_REP_ERROR, 81 IB_CM_REP_RECEIVED, 82 IB_CM_RTU_RECEIVED, 83 IB_CM_USER_ESTABLISHED, 84 IB_CM_DREQ_ERROR, 85 IB_CM_DREQ_RECEIVED, 86 IB_CM_DREP_RECEIVED, 87 IB_CM_TIMEWAIT_EXIT, 88 IB_CM_MRA_RECEIVED, 89 IB_CM_REJ_RECEIVED, 90 IB_CM_LAP_ERROR, 91 IB_CM_LAP_RECEIVED, 92 IB_CM_APR_RECEIVED, 93 IB_CM_SIDR_REQ_ERROR, 94 IB_CM_SIDR_REQ_RECEIVED, 95 IB_CM_SIDR_REP_RECEIVED 96 }; 97 98 enum ib_cm_data_size { 99 IB_CM_REQ_PRIVATE_DATA_SIZE = 92, 100 IB_CM_MRA_PRIVATE_DATA_SIZE = 222, 101 IB_CM_REJ_PRIVATE_DATA_SIZE = 148, 102 IB_CM_REP_PRIVATE_DATA_SIZE = 196, 103 IB_CM_RTU_PRIVATE_DATA_SIZE = 224, 104 IB_CM_DREQ_PRIVATE_DATA_SIZE = 220, 105 IB_CM_DREP_PRIVATE_DATA_SIZE = 224, 106 IB_CM_REJ_ARI_LENGTH = 72, 107 IB_CM_LAP_PRIVATE_DATA_SIZE = 168, 108 IB_CM_APR_PRIVATE_DATA_SIZE = 148, 109 IB_CM_APR_INFO_LENGTH = 72, 110 IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE = 216, 111 IB_CM_SIDR_REP_PRIVATE_DATA_SIZE = 136, 112 IB_CM_SIDR_REP_INFO_LENGTH = 72, 113 }; 114 115 struct ib_cm_id; 116 117 struct ib_cm_req_event_param { 118 struct ib_cm_id *listen_id; 119 120 /* P_Key that was used by the GMP's BTH header */ 121 u16 bth_pkey; 122 123 u8 port; 124 125 struct ib_sa_path_rec *primary_path; 126 struct ib_sa_path_rec *alternate_path; 127 128 __be64 remote_ca_guid; 129 u32 remote_qkey; 130 u32 remote_qpn; 131 enum ib_qp_type qp_type; 132 133 u32 starting_psn; 134 u8 responder_resources; 135 u8 initiator_depth; 136 unsigned int local_cm_response_timeout:5; 137 unsigned int flow_control:1; 138 unsigned int remote_cm_response_timeout:5; 139 unsigned int retry_count:3; 140 unsigned int rnr_retry_count:3; 141 unsigned int srq:1; 142 }; 143 144 struct ib_cm_rep_event_param { 145 __be64 remote_ca_guid; 146 u32 remote_qkey; 147 u32 remote_qpn; 148 u32 starting_psn; 149 u8 responder_resources; 150 u8 initiator_depth; 151 unsigned int target_ack_delay:5; 152 unsigned int failover_accepted:2; 153 unsigned int flow_control:1; 154 unsigned int rnr_retry_count:3; 155 unsigned int srq:1; 156 }; 157 158 enum ib_cm_rej_reason { 159 IB_CM_REJ_NO_QP = 1, 160 IB_CM_REJ_NO_EEC = 2, 161 IB_CM_REJ_NO_RESOURCES = 3, 162 IB_CM_REJ_TIMEOUT = 4, 163 IB_CM_REJ_UNSUPPORTED = 5, 164 IB_CM_REJ_INVALID_COMM_ID = 6, 165 IB_CM_REJ_INVALID_COMM_INSTANCE = 7, 166 IB_CM_REJ_INVALID_SERVICE_ID = 8, 167 IB_CM_REJ_INVALID_TRANSPORT_TYPE = 9, 168 IB_CM_REJ_STALE_CONN = 10, 169 IB_CM_REJ_RDC_NOT_EXIST = 11, 170 IB_CM_REJ_INVALID_GID = 12, 171 IB_CM_REJ_INVALID_LID = 13, 172 IB_CM_REJ_INVALID_SL = 14, 173 IB_CM_REJ_INVALID_TRAFFIC_CLASS = 15, 174 IB_CM_REJ_INVALID_HOP_LIMIT = 16, 175 IB_CM_REJ_INVALID_PACKET_RATE = 17, 176 IB_CM_REJ_INVALID_ALT_GID = 18, 177 IB_CM_REJ_INVALID_ALT_LID = 19, 178 IB_CM_REJ_INVALID_ALT_SL = 20, 179 IB_CM_REJ_INVALID_ALT_TRAFFIC_CLASS = 21, 180 IB_CM_REJ_INVALID_ALT_HOP_LIMIT = 22, 181 IB_CM_REJ_INVALID_ALT_PACKET_RATE = 23, 182 IB_CM_REJ_PORT_CM_REDIRECT = 24, 183 IB_CM_REJ_PORT_REDIRECT = 25, 184 IB_CM_REJ_INVALID_MTU = 26, 185 IB_CM_REJ_INSUFFICIENT_RESP_RESOURCES = 27, 186 IB_CM_REJ_CONSUMER_DEFINED = 28, 187 IB_CM_REJ_INVALID_RNR_RETRY = 29, 188 IB_CM_REJ_DUPLICATE_LOCAL_COMM_ID = 30, 189 IB_CM_REJ_INVALID_CLASS_VERSION = 31, 190 IB_CM_REJ_INVALID_FLOW_LABEL = 32, 191 IB_CM_REJ_INVALID_ALT_FLOW_LABEL = 33 192 }; 193 194 struct ib_cm_rej_event_param { 195 enum ib_cm_rej_reason reason; 196 void *ari; 197 u8 ari_length; 198 }; 199 200 struct ib_cm_mra_event_param { 201 u8 service_timeout; 202 }; 203 204 struct ib_cm_lap_event_param { 205 struct ib_sa_path_rec *alternate_path; 206 }; 207 208 enum ib_cm_apr_status { 209 IB_CM_APR_SUCCESS, 210 IB_CM_APR_INVALID_COMM_ID, 211 IB_CM_APR_UNSUPPORTED, 212 IB_CM_APR_REJECT, 213 IB_CM_APR_REDIRECT, 214 IB_CM_APR_IS_CURRENT, 215 IB_CM_APR_INVALID_QPN_EECN, 216 IB_CM_APR_INVALID_LID, 217 IB_CM_APR_INVALID_GID, 218 IB_CM_APR_INVALID_FLOW_LABEL, 219 IB_CM_APR_INVALID_TCLASS, 220 IB_CM_APR_INVALID_HOP_LIMIT, 221 IB_CM_APR_INVALID_PACKET_RATE, 222 IB_CM_APR_INVALID_SL 223 }; 224 225 struct ib_cm_apr_event_param { 226 enum ib_cm_apr_status ap_status; 227 void *apr_info; 228 u8 info_len; 229 }; 230 231 struct ib_cm_sidr_req_event_param { 232 struct ib_cm_id *listen_id; 233 __be64 service_id; 234 /* P_Key that was used by the GMP's BTH header */ 235 u16 bth_pkey; 236 u8 port; 237 u16 pkey; 238 }; 239 240 enum ib_cm_sidr_status { 241 IB_SIDR_SUCCESS, 242 IB_SIDR_UNSUPPORTED, 243 IB_SIDR_REJECT, 244 IB_SIDR_NO_QP, 245 IB_SIDR_REDIRECT, 246 IB_SIDR_UNSUPPORTED_VERSION 247 }; 248 249 struct ib_cm_sidr_rep_event_param { 250 enum ib_cm_sidr_status status; 251 u32 qkey; 252 u32 qpn; 253 void *info; 254 u8 info_len; 255 }; 256 257 struct ib_cm_event { 258 enum ib_cm_event_type event; 259 union { 260 struct ib_cm_req_event_param req_rcvd; 261 struct ib_cm_rep_event_param rep_rcvd; 262 /* No data for RTU received events. */ 263 struct ib_cm_rej_event_param rej_rcvd; 264 struct ib_cm_mra_event_param mra_rcvd; 265 struct ib_cm_lap_event_param lap_rcvd; 266 struct ib_cm_apr_event_param apr_rcvd; 267 /* No data for DREQ/DREP received events. */ 268 struct ib_cm_sidr_req_event_param sidr_req_rcvd; 269 struct ib_cm_sidr_rep_event_param sidr_rep_rcvd; 270 enum ib_wc_status send_status; 271 } param; 272 273 void *private_data; 274 }; 275 276 #define CM_REQ_ATTR_ID cpu_to_be16(0x0010) 277 #define CM_MRA_ATTR_ID cpu_to_be16(0x0011) 278 #define CM_REJ_ATTR_ID cpu_to_be16(0x0012) 279 #define CM_REP_ATTR_ID cpu_to_be16(0x0013) 280 #define CM_RTU_ATTR_ID cpu_to_be16(0x0014) 281 #define CM_DREQ_ATTR_ID cpu_to_be16(0x0015) 282 #define CM_DREP_ATTR_ID cpu_to_be16(0x0016) 283 #define CM_SIDR_REQ_ATTR_ID cpu_to_be16(0x0017) 284 #define CM_SIDR_REP_ATTR_ID cpu_to_be16(0x0018) 285 #define CM_LAP_ATTR_ID cpu_to_be16(0x0019) 286 #define CM_APR_ATTR_ID cpu_to_be16(0x001A) 287 288 /** 289 * ib_cm_handler - User-defined callback to process communication events. 290 * @cm_id: Communication identifier associated with the reported event. 291 * @event: Information about the communication event. 292 * 293 * IB_CM_REQ_RECEIVED and IB_CM_SIDR_REQ_RECEIVED communication events 294 * generated as a result of listen requests result in the allocation of a 295 * new @cm_id. The new @cm_id is returned to the user through this callback. 296 * Clients are responsible for destroying the new @cm_id. For peer-to-peer 297 * IB_CM_REQ_RECEIVED and all other events, the returned @cm_id corresponds 298 * to a user's existing communication identifier. 299 * 300 * Users may not call ib_destroy_cm_id while in the context of this callback; 301 * however, returning a non-zero value instructs the communication manager to 302 * destroy the @cm_id after the callback completes. 303 */ 304 typedef int (*ib_cm_handler)(struct ib_cm_id *cm_id, 305 struct ib_cm_event *event); 306 307 struct ib_cm_id { 308 ib_cm_handler cm_handler; 309 void *context; 310 struct ib_device *device; 311 __be64 service_id; 312 __be64 service_mask; 313 enum ib_cm_state state; /* internal CM/debug use */ 314 enum ib_cm_lap_state lap_state; /* internal CM/debug use */ 315 __be32 local_id; 316 __be32 remote_id; 317 u32 remote_cm_qpn; /* 1 unless redirected */ 318 }; 319 320 /** 321 * ib_create_cm_id - Allocate a communication identifier. 322 * @device: Device associated with the cm_id. All related communication will 323 * be associated with the specified device. 324 * @cm_handler: Callback invoked to notify the user of CM events. 325 * @context: User specified context associated with the communication 326 * identifier. 327 * 328 * Communication identifiers are used to track connection states, service 329 * ID resolution requests, and listen requests. 330 */ 331 struct ib_cm_id *ib_create_cm_id(struct ib_device *device, 332 ib_cm_handler cm_handler, 333 void *context); 334 335 /** 336 * ib_destroy_cm_id - Destroy a connection identifier. 337 * @cm_id: Connection identifier to destroy. 338 * 339 * This call blocks until the connection identifier is destroyed. 340 */ 341 void ib_destroy_cm_id(struct ib_cm_id *cm_id); 342 343 #define IB_SERVICE_ID_AGN_MASK cpu_to_be64(0xFF00000000000000ULL) 344 #define IB_CM_ASSIGN_SERVICE_ID cpu_to_be64(0x0200000000000000ULL) 345 #define IB_CMA_SERVICE_ID cpu_to_be64(0x0000000001000000ULL) 346 #define IB_CMA_SERVICE_ID_MASK cpu_to_be64(0xFFFFFFFFFF000000ULL) 347 #define IB_SDP_SERVICE_ID cpu_to_be64(0x0000000000010000ULL) 348 #define IB_SDP_SERVICE_ID_MASK cpu_to_be64(0xFFFFFFFFFFFF0000ULL) 349 350 /** 351 * ib_cm_listen - Initiates listening on the specified service ID for 352 * connection and service ID resolution requests. 353 * @cm_id: Connection identifier associated with the listen request. 354 * @service_id: Service identifier matched against incoming connection 355 * and service ID resolution requests. The service ID should be specified 356 * network-byte order. If set to IB_CM_ASSIGN_SERVICE_ID, the CM will 357 * assign a service ID to the caller. 358 * @service_mask: Mask applied to service ID used to listen across a 359 * range of service IDs. If set to 0, the service ID is matched 360 * exactly. This parameter is ignored if %service_id is set to 361 * IB_CM_ASSIGN_SERVICE_ID. 362 */ 363 int ib_cm_listen(struct ib_cm_id *cm_id, __be64 service_id, 364 __be64 service_mask); 365 366 struct ib_cm_id *ib_cm_insert_listen(struct ib_device *device, 367 ib_cm_handler cm_handler, 368 __be64 service_id); 369 370 struct ib_cm_req_param { 371 struct ib_sa_path_rec *primary_path; 372 struct ib_sa_path_rec *alternate_path; 373 __be64 service_id; 374 u32 qp_num; 375 enum ib_qp_type qp_type; 376 u32 starting_psn; 377 const void *private_data; 378 u8 private_data_len; 379 u8 peer_to_peer; 380 u8 responder_resources; 381 u8 initiator_depth; 382 u8 remote_cm_response_timeout; 383 u8 flow_control; 384 u8 local_cm_response_timeout; 385 u8 retry_count; 386 u8 rnr_retry_count; 387 u8 max_cm_retries; 388 u8 srq; 389 }; 390 391 /** 392 * ib_send_cm_req - Sends a connection request to the remote node. 393 * @cm_id: Connection identifier that will be associated with the 394 * connection request. 395 * @param: Connection request information needed to establish the 396 * connection. 397 */ 398 int ib_send_cm_req(struct ib_cm_id *cm_id, 399 struct ib_cm_req_param *param); 400 401 struct ib_cm_rep_param { 402 u32 qp_num; 403 u32 starting_psn; 404 const void *private_data; 405 u8 private_data_len; 406 u8 responder_resources; 407 u8 initiator_depth; 408 u8 failover_accepted; 409 u8 flow_control; 410 u8 rnr_retry_count; 411 u8 srq; 412 }; 413 414 /** 415 * ib_send_cm_rep - Sends a connection reply in response to a connection 416 * request. 417 * @cm_id: Connection identifier that will be associated with the 418 * connection request. 419 * @param: Connection reply information needed to establish the 420 * connection. 421 */ 422 int ib_send_cm_rep(struct ib_cm_id *cm_id, 423 struct ib_cm_rep_param *param); 424 425 /** 426 * ib_send_cm_rtu - Sends a connection ready to use message in response 427 * to a connection reply message. 428 * @cm_id: Connection identifier associated with the connection request. 429 * @private_data: Optional user-defined private data sent with the 430 * ready to use message. 431 * @private_data_len: Size of the private data buffer, in bytes. 432 */ 433 int ib_send_cm_rtu(struct ib_cm_id *cm_id, 434 const void *private_data, 435 u8 private_data_len); 436 437 /** 438 * ib_send_cm_dreq - Sends a disconnection request for an existing 439 * connection. 440 * @cm_id: Connection identifier associated with the connection being 441 * released. 442 * @private_data: Optional user-defined private data sent with the 443 * disconnection request message. 444 * @private_data_len: Size of the private data buffer, in bytes. 445 */ 446 int ib_send_cm_dreq(struct ib_cm_id *cm_id, 447 const void *private_data, 448 u8 private_data_len); 449 450 /** 451 * ib_send_cm_drep - Sends a disconnection reply to a disconnection request. 452 * @cm_id: Connection identifier associated with the connection being 453 * released. 454 * @private_data: Optional user-defined private data sent with the 455 * disconnection reply message. 456 * @private_data_len: Size of the private data buffer, in bytes. 457 * 458 * If the cm_id is in the correct state, the CM will transition the connection 459 * to the timewait state, even if an error occurs sending the DREP message. 460 */ 461 int ib_send_cm_drep(struct ib_cm_id *cm_id, 462 const void *private_data, 463 u8 private_data_len); 464 465 /** 466 * ib_cm_notify - Notifies the CM of an event reported to the consumer. 467 * @cm_id: Connection identifier to transition to established. 468 * @event: Type of event. 469 * 470 * This routine should be invoked by users to notify the CM of relevant 471 * communication events. Events that should be reported to the CM and 472 * when to report them are: 473 * 474 * IB_EVENT_COMM_EST - Used when a message is received on a connected 475 * QP before an RTU has been received. 476 * IB_EVENT_PATH_MIG - Notifies the CM that the connection has failed over 477 * to the alternate path. 478 */ 479 int ib_cm_notify(struct ib_cm_id *cm_id, enum ib_event_type event); 480 481 /** 482 * ib_send_cm_rej - Sends a connection rejection message to the 483 * remote node. 484 * @cm_id: Connection identifier associated with the connection being 485 * rejected. 486 * @reason: Reason for the connection request rejection. 487 * @ari: Optional additional rejection information. 488 * @ari_length: Size of the additional rejection information, in bytes. 489 * @private_data: Optional user-defined private data sent with the 490 * rejection message. 491 * @private_data_len: Size of the private data buffer, in bytes. 492 */ 493 int ib_send_cm_rej(struct ib_cm_id *cm_id, 494 enum ib_cm_rej_reason reason, 495 void *ari, 496 u8 ari_length, 497 const void *private_data, 498 u8 private_data_len); 499 500 #define IB_CM_MRA_FLAG_DELAY 0x80 /* Send MRA only after a duplicate msg */ 501 502 /** 503 * ib_send_cm_mra - Sends a message receipt acknowledgement to a connection 504 * message. 505 * @cm_id: Connection identifier associated with the connection message. 506 * @service_timeout: The lower 5-bits specify the maximum time required for 507 * the sender to reply to the connection message. The upper 3-bits 508 * specify additional control flags. 509 * @private_data: Optional user-defined private data sent with the 510 * message receipt acknowledgement. 511 * @private_data_len: Size of the private data buffer, in bytes. 512 */ 513 int ib_send_cm_mra(struct ib_cm_id *cm_id, 514 u8 service_timeout, 515 const void *private_data, 516 u8 private_data_len); 517 518 /** 519 * ib_send_cm_lap - Sends a load alternate path request. 520 * @cm_id: Connection identifier associated with the load alternate path 521 * message. 522 * @alternate_path: A path record that identifies the alternate path to 523 * load. 524 * @private_data: Optional user-defined private data sent with the 525 * load alternate path message. 526 * @private_data_len: Size of the private data buffer, in bytes. 527 */ 528 int ib_send_cm_lap(struct ib_cm_id *cm_id, 529 struct ib_sa_path_rec *alternate_path, 530 const void *private_data, 531 u8 private_data_len); 532 533 /** 534 * ib_cm_init_qp_attr - Initializes the QP attributes for use in transitioning 535 * to a specified QP state. 536 * @cm_id: Communication identifier associated with the QP attributes to 537 * initialize. 538 * @qp_attr: On input, specifies the desired QP state. On output, the 539 * mandatory and desired optional attributes will be set in order to 540 * modify the QP to the specified state. 541 * @qp_attr_mask: The QP attribute mask that may be used to transition the 542 * QP to the specified state. 543 * 544 * Users must set the @qp_attr->qp_state to the desired QP state. This call 545 * will set all required attributes for the given transition, along with 546 * known optional attributes. Users may override the attributes returned from 547 * this call before calling ib_modify_qp. 548 */ 549 int ib_cm_init_qp_attr(struct ib_cm_id *cm_id, 550 struct ib_qp_attr *qp_attr, 551 int *qp_attr_mask); 552 553 /** 554 * ib_send_cm_apr - Sends an alternate path response message in response to 555 * a load alternate path request. 556 * @cm_id: Connection identifier associated with the alternate path response. 557 * @status: Reply status sent with the alternate path response. 558 * @info: Optional additional information sent with the alternate path 559 * response. 560 * @info_length: Size of the additional information, in bytes. 561 * @private_data: Optional user-defined private data sent with the 562 * alternate path response message. 563 * @private_data_len: Size of the private data buffer, in bytes. 564 */ 565 int ib_send_cm_apr(struct ib_cm_id *cm_id, 566 enum ib_cm_apr_status status, 567 void *info, 568 u8 info_length, 569 const void *private_data, 570 u8 private_data_len); 571 572 struct ib_cm_sidr_req_param { 573 struct ib_sa_path_rec *path; 574 __be64 service_id; 575 int timeout_ms; 576 const void *private_data; 577 u8 private_data_len; 578 u8 max_cm_retries; 579 }; 580 581 /** 582 * ib_send_cm_sidr_req - Sends a service ID resolution request to the 583 * remote node. 584 * @cm_id: Communication identifier that will be associated with the 585 * service ID resolution request. 586 * @param: Service ID resolution request information. 587 */ 588 int ib_send_cm_sidr_req(struct ib_cm_id *cm_id, 589 struct ib_cm_sidr_req_param *param); 590 591 struct ib_cm_sidr_rep_param { 592 u32 qp_num; 593 u32 qkey; 594 enum ib_cm_sidr_status status; 595 const void *info; 596 u8 info_length; 597 const void *private_data; 598 u8 private_data_len; 599 }; 600 601 /** 602 * ib_send_cm_sidr_rep - Sends a service ID resolution reply to the 603 * remote node. 604 * @cm_id: Communication identifier associated with the received service ID 605 * resolution request. 606 * @param: Service ID resolution reply information. 607 */ 608 int ib_send_cm_sidr_rep(struct ib_cm_id *cm_id, 609 struct ib_cm_sidr_rep_param *param); 610 611 #endif /* IB_CM_H */ 612