1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <sys/ib/mgt/ibcm/ibcm_impl.h> 29 #include <sys/ib/mgt/ibcm/ibcm_arp.h> 30 31 /* 32 * ibcm_path.c 33 * 34 * ibt_get_paths() implement the Path Informations related functionality. 35 */ 36 37 /* ibcm_saa_service_rec() fills in ServiceID and DGID. */ 38 typedef struct ibcm_dest_s { 39 ib_gid_t d_gid; 40 ib_svc_id_t d_sid; 41 ibt_srv_data_t d_sdata; 42 ib_pkey_t d_pkey; 43 uint_t d_tag; /* 0 = Unicast, 1 = Multicast, 2 = LoopBack */ 44 } ibcm_dest_t; 45 46 /* Holds Destination information needed to fill in ibt_path_info_t. */ 47 typedef struct ibcm_dinfo_s { 48 uint8_t num_dest; 49 ib_pkey_t p_key; 50 ibcm_dest_t dest[1]; 51 } ibcm_dinfo_t; 52 53 _NOTE(SCHEME_PROTECTS_DATA("Temporary path storage", ibcm_dinfo_s)) 54 _NOTE(READ_ONLY_DATA(ibt_path_attr_s)) 55 56 typedef struct ibcm_path_tqargs_s { 57 ibt_path_attr_t attr; 58 ibt_path_info_t *paths; 59 uint8_t *num_paths_p; 60 ibt_path_handler_t func; 61 void *arg; 62 ibt_path_flags_t flags; 63 uint8_t max_paths; 64 } ibcm_path_tqargs_t; 65 66 67 /* Prototype Declarations. */ 68 static ibt_status_t ibcm_get_path_rec(ibcm_path_tqargs_t *, ibcm_dinfo_t *, 69 uint8_t *, ibt_path_info_t *); 70 71 static ibt_status_t ibcm_saa_path_rec(ibcm_path_tqargs_t *, 72 ibtl_cm_port_list_t *, ibcm_dinfo_t *, uint8_t *); 73 74 static ibt_status_t ibcm_update_cep_info(sa_path_record_t *, 75 ibtl_cm_port_list_t *, ibtl_cm_hca_port_t *, ibt_cep_path_t *); 76 77 static ibt_status_t ibcm_fillin_loopbackinfo(ibtl_cm_port_list_t *, 78 uint8_t index, ibcm_dinfo_t *, ibt_path_info_t *); 79 80 static ibt_status_t ibcm_saa_service_rec(ibcm_path_tqargs_t *, 81 ibtl_cm_port_list_t *, ibcm_dinfo_t *); 82 83 static ibt_status_t ibcm_get_single_pathrec(ibcm_path_tqargs_t *, 84 ibtl_cm_port_list_t *, ibcm_dinfo_t *, uint8_t, 85 uint8_t *, ibt_path_info_t *); 86 87 static ibt_status_t ibcm_get_multi_pathrec(ibcm_path_tqargs_t *, 88 ibtl_cm_port_list_t *, ibcm_dinfo_t *dinfo, 89 uint8_t *, ibt_path_info_t *); 90 91 static ibt_status_t ibcm_validate_path_attributes(ibt_path_attr_t *attrp, 92 ibt_path_flags_t flags, uint8_t max_paths); 93 94 static ibt_status_t ibcm_handle_get_path(ibt_path_attr_t *attrp, 95 ibt_path_flags_t flags, uint8_t max_paths, ibt_path_info_t *paths, 96 uint8_t *num_path_p, ibt_path_handler_t func, void *arg); 97 98 static void ibcm_process_async_get_paths(void *tq_arg); 99 100 static ibt_status_t ibcm_process_get_paths(void *tq_arg); 101 102 static ibt_status_t ibcm_get_comp_pgids(ib_gid_t, ib_gid_t, ib_guid_t, 103 ib_gid_t **, uint_t *); 104 105 /* 106 * Function: 107 * ibt_aget_paths 108 * Input: 109 * ibt_hdl The handle returned to the client by the IBTF from an 110 * ibt_attach() call. Can be used by the IBTF Policy module 111 * and CM in the determination of the "best" path to the 112 * specified destination for this class of driver. 113 * flags Path flags. 114 * attrp Points to an ibt_path_attr_t struct that contains 115 * required and optional attributes. 116 * func A pointer to an ibt_path_handler_t function to call 117 * when ibt_aget_paths() completes. 118 * arg The argument to 'func'. 119 * Returns: 120 * IBT_SUCCESS on early validation of attributes else appropriate error. 121 * Description: 122 * Finds the best path to a specified destination or service 123 * asynchronously (as determined by the IBTL) that satisfies the 124 * requirements specified in an ibt_path_attr_t struct. 125 * ibt_aget_paths() is a Non-Blocking version of ibt_get_paths(). 126 */ 127 ibt_status_t 128 ibt_aget_paths(ibt_clnt_hdl_t ibt_hdl, ibt_path_flags_t flags, 129 ibt_path_attr_t *attrp, uint8_t max_paths, ibt_path_handler_t func, 130 void *arg) 131 { 132 IBTF_DPRINTF_L3(cmlog, "ibt_aget_paths(%p, 0x%X, %p, %d, %p)", 133 ibt_hdl, flags, attrp, max_paths, func); 134 135 if (func == NULL) { 136 IBTF_DPRINTF_L2(cmlog, "ibt_aget_paths: Function Pointer is " 137 "NULL - ERROR "); 138 return (IBT_INVALID_PARAM); 139 } 140 141 /* Memory for path info will be allocated in ibcm_process_get_paths() */ 142 return (ibcm_handle_get_path(attrp, flags, max_paths, NULL, NULL, 143 func, arg)); 144 } 145 146 147 /* 148 * ibt_get_paths() cache consists of one or more of: 149 * 150 * ib_gid_t dgid (attrp->pa_dgids[0]) 151 * ibt_path_attr_t attr 152 * ibt_path_flags_t flags 153 * ibt_path_info_t path 154 * 155 * If the first 3 match, max_paths is 1, sname is NULL, and sid is 0, 156 * then the path is returned immediately. 157 * 158 * Note that a compare of "attr" is non-trivial. Only accept ones 159 * that memcmp() succeeds, i.e., basically assume a bzero was done. 160 * 161 * Cache must be invalidated if PORT_DOWN event or GID_UNAVAIL occurs. 162 * Cache must be freed as part of _fini. 163 */ 164 165 #define IBCM_PATH_CACHE_SIZE 16 /* keep small for linear search */ 166 #define IBCM_PATH_CACHE_TIMEOUT 60 /* purge cache after 60 seconds */ 167 168 typedef struct ibcm_path_cache_s { 169 ib_gid_t dgid; 170 ibt_path_attr_t attr; 171 ibt_path_flags_t flags; 172 ibt_path_info_t path; 173 } ibcm_path_cache_t; 174 175 kmutex_t ibcm_path_cache_mutex; 176 int ibcm_path_cache_invalidate; /* invalidate cache on next ibt_get_paths */ 177 clock_t ibcm_path_cache_timeout = IBCM_PATH_CACHE_TIMEOUT; /* tunable */ 178 timeout_id_t ibcm_path_cache_timeout_id; 179 int ibcm_path_cache_size_init = IBCM_PATH_CACHE_SIZE; /* tunable */ 180 int ibcm_path_cache_size; 181 ibcm_path_cache_t *ibcm_path_cachep; 182 183 struct ibcm_path_cache_stat_s { 184 int hits; 185 int misses; 186 int adds; 187 int already_in_cache; 188 int bad_path_for_cache; 189 int purges; 190 int timeouts; 191 } ibcm_path_cache_stats; 192 193 /*ARGSUSED*/ 194 static void 195 ibcm_path_cache_timeout_cb(void *arg) 196 { 197 clock_t timeout_in_hz; 198 199 timeout_in_hz = drv_usectohz(ibcm_path_cache_timeout * 1000000); 200 mutex_enter(&ibcm_path_cache_mutex); 201 ibcm_path_cache_invalidate = 1; /* invalidate cache on next check */ 202 if (ibcm_path_cache_timeout_id) 203 ibcm_path_cache_timeout_id = timeout(ibcm_path_cache_timeout_cb, 204 NULL, timeout_in_hz); 205 /* else we're in _fini */ 206 mutex_exit(&ibcm_path_cache_mutex); 207 } 208 209 void 210 ibcm_path_cache_init(void) 211 { 212 clock_t timeout_in_hz; 213 int cache_size = ibcm_path_cache_size_init; 214 ibcm_path_cache_t *path_cachep; 215 216 timeout_in_hz = drv_usectohz(ibcm_path_cache_timeout * 1000000); 217 path_cachep = kmem_zalloc(cache_size * sizeof (*path_cachep), KM_SLEEP); 218 mutex_init(&ibcm_path_cache_mutex, NULL, MUTEX_DEFAULT, NULL); 219 mutex_enter(&ibcm_path_cache_mutex); 220 ibcm_path_cache_size = cache_size; 221 ibcm_path_cachep = path_cachep; 222 ibcm_path_cache_timeout_id = timeout(ibcm_path_cache_timeout_cb, 223 NULL, timeout_in_hz); 224 mutex_exit(&ibcm_path_cache_mutex); 225 } 226 227 void 228 ibcm_path_cache_fini(void) 229 { 230 timeout_id_t tmp_timeout_id; 231 int cache_size; 232 ibcm_path_cache_t *path_cachep; 233 234 mutex_enter(&ibcm_path_cache_mutex); 235 if (ibcm_path_cache_timeout_id) { 236 tmp_timeout_id = ibcm_path_cache_timeout_id; 237 ibcm_path_cache_timeout_id = 0; /* no more timeouts */ 238 } 239 cache_size = ibcm_path_cache_size; 240 path_cachep = ibcm_path_cachep; 241 mutex_exit(&ibcm_path_cache_mutex); 242 if (tmp_timeout_id) 243 (void) untimeout(tmp_timeout_id); 244 mutex_destroy(&ibcm_path_cache_mutex); 245 kmem_free(path_cachep, cache_size * sizeof (*path_cachep)); 246 } 247 248 static ibcm_status_t 249 ibcm_path_cache_check(ibt_path_flags_t flags, ibt_path_attr_t *attrp, 250 uint8_t max_paths, ibt_path_info_t *path, uint8_t *num_paths_p) 251 { 252 int i; 253 ib_gid_t dgid; 254 ibcm_path_cache_t *path_cachep; 255 256 if (max_paths != 1 || attrp->pa_num_dgids != 1 || 257 attrp->pa_sname != NULL || attrp->pa_sid != 0) { 258 mutex_enter(&ibcm_path_cache_mutex); 259 ibcm_path_cache_stats.bad_path_for_cache++; 260 mutex_exit(&ibcm_path_cache_mutex); 261 return (IBCM_FAILURE); 262 } 263 264 dgid = attrp->pa_dgids[0]; 265 if ((dgid.gid_guid | dgid.gid_prefix) == 0ULL) 266 return (IBCM_FAILURE); 267 268 mutex_enter(&ibcm_path_cache_mutex); 269 if (ibcm_path_cache_invalidate) { /* invalidate all entries */ 270 ibcm_path_cache_stats.timeouts++; 271 ibcm_path_cache_invalidate = 0; 272 path_cachep = ibcm_path_cachep; 273 for (i = 0; i < ibcm_path_cache_size; i++, path_cachep++) { 274 path_cachep->dgid.gid_guid = 0ULL; 275 path_cachep->dgid.gid_prefix = 0ULL; 276 } 277 mutex_exit(&ibcm_path_cache_mutex); 278 return (IBCM_FAILURE); 279 } 280 281 path_cachep = ibcm_path_cachep; 282 for (i = 0; i < ibcm_path_cache_size; i++, path_cachep++) { 283 if (path_cachep->dgid.gid_guid == 0ULL) 284 break; /* end of search, no more valid cache entries */ 285 286 /* make pa_dgids pointers match, so we can use memcmp */ 287 path_cachep->attr.pa_dgids = attrp->pa_dgids; 288 if (path_cachep->flags != flags || 289 path_cachep->dgid.gid_guid != dgid.gid_guid || 290 path_cachep->dgid.gid_prefix != dgid.gid_prefix || 291 memcmp(&(path_cachep->attr), attrp, sizeof (*attrp)) != 0) { 292 /* make pa_dgids NULL again */ 293 path_cachep->attr.pa_dgids = NULL; 294 continue; 295 } 296 /* else we have a match */ 297 /* make pa_dgids NULL again */ 298 path_cachep->attr.pa_dgids = NULL; 299 *path = path_cachep->path; /* retval */ 300 if (num_paths_p) 301 *num_paths_p = 1; /* retval */ 302 ibcm_path_cache_stats.hits++; 303 mutex_exit(&ibcm_path_cache_mutex); 304 return (IBCM_SUCCESS); 305 } 306 ibcm_path_cache_stats.misses++; 307 mutex_exit(&ibcm_path_cache_mutex); 308 return (IBCM_FAILURE); 309 } 310 311 static void 312 ibcm_path_cache_add(ibt_path_flags_t flags, 313 ibt_path_attr_t *attrp, uint8_t max_paths, ibt_path_info_t *path) 314 { 315 int i; 316 ib_gid_t dgid; 317 ibcm_path_cache_t *path_cachep; 318 319 if (max_paths != 1 || attrp->pa_num_dgids != 1 || 320 attrp->pa_sname != NULL || attrp->pa_sid != 0) 321 return; 322 323 dgid = attrp->pa_dgids[0]; 324 if ((dgid.gid_guid | dgid.gid_prefix) == 0ULL) 325 return; 326 327 mutex_enter(&ibcm_path_cache_mutex); 328 path_cachep = ibcm_path_cachep; 329 for (i = 0; i < ibcm_path_cache_size; i++, path_cachep++) { 330 path_cachep->attr.pa_dgids = attrp->pa_dgids; 331 if (path_cachep->flags == flags && 332 path_cachep->dgid.gid_guid == dgid.gid_guid && 333 path_cachep->dgid.gid_prefix == dgid.gid_prefix && 334 memcmp(&(path_cachep->attr), attrp, sizeof (*attrp)) == 0) { 335 /* already in cache */ 336 ibcm_path_cache_stats.already_in_cache++; 337 path_cachep->attr.pa_dgids = NULL; 338 mutex_exit(&ibcm_path_cache_mutex); 339 return; 340 } 341 if (path_cachep->dgid.gid_guid != 0ULL) { 342 path_cachep->attr.pa_dgids = NULL; 343 continue; 344 } 345 /* else the rest of the entries are free, so use this one */ 346 ibcm_path_cache_stats.adds++; 347 path_cachep->flags = flags; 348 path_cachep->attr = *attrp; 349 path_cachep->attr.pa_dgids = NULL; 350 path_cachep->dgid = attrp->pa_dgids[0]; 351 path_cachep->path = *path; 352 mutex_exit(&ibcm_path_cache_mutex); 353 return; 354 } 355 mutex_exit(&ibcm_path_cache_mutex); 356 } 357 358 void 359 ibcm_path_cache_purge(void) 360 { 361 mutex_enter(&ibcm_path_cache_mutex); 362 ibcm_path_cache_invalidate = 1; /* invalidate cache on next check */ 363 ibcm_path_cache_stats.purges++; 364 mutex_exit(&ibcm_path_cache_mutex); 365 } 366 367 /* 368 * Function: 369 * ibt_get_paths 370 * Input: 371 * ibt_hdl The handle returned to the client by the IBTF from an 372 * ibt_attach() call. Can be used by the IBTF Policy module 373 * and CM in the determination of the "best" path to the 374 * specified destination for this class of driver. 375 * flags Path flags. 376 * attrp Points to an ibt_path_attr_t struct that contains 377 * required and optional attributes. 378 * max_paths The size of the "paths" array argument. Also, this 379 * is the limit on the number of paths returned. 380 * max_paths indicates the number of requested paths to 381 * the specified destination(s). 382 * Output: 383 * paths An array of ibt_path_info_t structs filled in by 384 * ibt_get_paths() as output parameters. Upon return, 385 * array elements with non-NULL HCA GUIDs are valid. 386 * num_paths_p If non-NULL, return the actual number of paths found. 387 * Returns: 388 * IBT_SUCCESS on Success else appropriate error. 389 * Description: 390 * Finds the best path to a specified destination (as determined by the 391 * IBTL) that satisfies the requirements specified in an ibt_path_attr_t 392 * struct. 393 * 394 * This routine can not be called from interrupt context. 395 */ 396 ibt_status_t 397 ibt_get_paths(ibt_clnt_hdl_t ibt_hdl, ibt_path_flags_t flags, 398 ibt_path_attr_t *attrp, uint8_t max_paths, ibt_path_info_t *paths, 399 uint8_t *num_paths_p) 400 { 401 ibt_status_t retval; 402 403 ASSERT(paths != NULL); 404 405 IBTF_DPRINTF_L3(cmlog, "ibt_get_paths(%p, 0x%X, %p, %d)", 406 ibt_hdl, flags, attrp, max_paths); 407 408 if (paths == NULL) { 409 IBTF_DPRINTF_L2(cmlog, "ibt_get_paths: Path Info Pointer is " 410 "NULL - ERROR "); 411 return (IBT_INVALID_PARAM); 412 } 413 414 if (num_paths_p != NULL) 415 *num_paths_p = 0; 416 417 if (ibcm_path_cache_check(flags, attrp, max_paths, paths, 418 num_paths_p) == IBCM_SUCCESS) 419 return (IBT_SUCCESS); 420 421 retval = ibcm_handle_get_path(attrp, flags, max_paths, paths, 422 num_paths_p, NULL, NULL); 423 424 if (retval == IBT_SUCCESS) 425 ibcm_path_cache_add(flags, attrp, max_paths, paths); 426 return (retval); 427 } 428 429 430 static ibt_status_t 431 ibcm_handle_get_path(ibt_path_attr_t *attrp, ibt_path_flags_t flags, 432 uint8_t max_paths, ibt_path_info_t *paths, uint8_t *num_path_p, 433 ibt_path_handler_t func, void *arg) 434 { 435 ibcm_path_tqargs_t *path_tq; 436 int sleep_flag = ((func == NULL) ? KM_SLEEP : KM_NOSLEEP); 437 int len; 438 ibt_status_t retval; 439 440 retval = ibcm_validate_path_attributes(attrp, flags, max_paths); 441 if (retval != IBT_SUCCESS) 442 return (retval); 443 444 len = (attrp->pa_num_dgids * sizeof (ib_gid_t)) + 445 sizeof (ibcm_path_tqargs_t); 446 447 path_tq = kmem_alloc(len, sleep_flag); 448 if (path_tq == NULL) { 449 IBTF_DPRINTF_L2(cmlog, "ibcm_handle_get_path: " 450 "Unable to allocate memory for local usage."); 451 return (IBT_INSUFF_KERNEL_RESOURCE); 452 } 453 454 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*path_tq)) 455 456 bcopy(attrp, &path_tq->attr, sizeof (ibt_path_attr_t)); 457 458 if (attrp->pa_num_dgids) { 459 path_tq->attr.pa_dgids = (ib_gid_t *)(((uchar_t *)path_tq) + 460 sizeof (ibcm_path_tqargs_t)); 461 462 bcopy(attrp->pa_dgids, path_tq->attr.pa_dgids, 463 sizeof (ib_gid_t) * attrp->pa_num_dgids); 464 } else { 465 path_tq->attr.pa_dgids = NULL; 466 } 467 468 /* Ignore IBT_PATH_AVAIL flag, if only one path is requested. */ 469 if ((flags & IBT_PATH_AVAIL) && (max_paths == 1)) { 470 flags &= ~IBT_PATH_AVAIL; 471 472 IBTF_DPRINTF_L4(cmlog, "ibcm_handle_get_path: " 473 "Ignoring IBT_PATH_AVAIL flag, as only ONE path " 474 "information is requested."); 475 } 476 477 path_tq->flags = flags; 478 path_tq->max_paths = max_paths; 479 path_tq->paths = paths; 480 path_tq->num_paths_p = num_path_p; 481 path_tq->func = func; 482 path_tq->arg = arg; 483 484 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*path_tq)) 485 486 if (func != NULL) { /* Non-Blocking */ 487 IBTF_DPRINTF_L3(cmlog, "ibcm_handle_get_path: Non Blocking"); 488 if (taskq_dispatch(ibcm_taskq, ibcm_process_async_get_paths, 489 path_tq, TQ_NOSLEEP) == 0) { 490 IBTF_DPRINTF_L2(cmlog, "ibcm_handle_get_path: " 491 "Failed to dispatch the TaskQ"); 492 kmem_free(path_tq, len); 493 return (IBT_INSUFF_KERNEL_RESOURCE); 494 } else 495 return (IBT_SUCCESS); 496 } else { /* Blocking */ 497 IBTF_DPRINTF_L3(cmlog, "ibcm_handle_get_path: Blocking"); 498 return (ibcm_process_get_paths(path_tq)); 499 } 500 } 501 502 503 static void 504 ibcm_process_async_get_paths(void *tq_arg) 505 { 506 (void) ibcm_process_get_paths(tq_arg); 507 } 508 509 510 static ibt_status_t 511 ibcm_validate_path_attributes(ibt_path_attr_t *attrp, ibt_path_flags_t flags, 512 uint8_t max_paths) 513 { 514 uint_t i; 515 516 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes: Inputs are: " 517 "HCA (%llX, %d),\n\tSGID(%llX:%llX), SName=\"%s\",\n\tSID= %llX, " 518 "Maxpath= %d, Flags= 0x%X, #Dgid= %d, SDFlag= 0x%llX", 519 attrp->pa_hca_guid, attrp->pa_hca_port_num, 520 attrp->pa_sgid.gid_prefix, attrp->pa_sgid.gid_guid, 521 ((attrp->pa_sname != NULL) ? attrp->pa_sname : ""), attrp->pa_sid, 522 max_paths, flags, attrp->pa_num_dgids, attrp->pa_sd_flags); 523 524 /* 525 * Validate Path Flags. 526 * IBT_PATH_AVAIL & IBT_PATH_PERF are mutually exclusive. 527 */ 528 if ((flags & IBT_PATH_AVAIL) && (flags & IBT_PATH_PERF)) { 529 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes: " 530 "Invalid Flags: 0x%X,\n\t AVAIL and PERF flags cannot " 531 "specified together.", flags); 532 return (IBT_INVALID_PARAM); 533 } 534 535 /* Validate number of records requested. */ 536 if ((flags & (IBT_PATH_AVAIL | IBT_PATH_PERF)) && 537 (max_paths > IBT_MAX_SPECIAL_PATHS)) { 538 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes: " 539 "Max records that can be requested is <%d> \n" 540 "when IBT_PATH_AVAIL or IBT_PATH_PERF flag is specified.", 541 IBT_MAX_SPECIAL_PATHS); 542 return (IBT_INVALID_PARAM); 543 } 544 545 /* Only 2 destinations can be specified w/ APM flag. */ 546 if ((flags & IBT_PATH_APM) && (attrp->pa_num_dgids > 2)) { 547 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes:\n\t Max " 548 "number of DGIDs that can be specified w/APM flag is 2"); 549 return (IBT_INVALID_PARAM); 550 } 551 552 /* 553 * Max_paths of "0" is invalid. 554 * w/ IBT_PATH_MULTI_SVC_DEST flag, max_paths must be greater than "1". 555 */ 556 if ((max_paths == 0) || 557 ((flags & IBT_PATH_MULTI_SVC_DEST) && (max_paths < 2))) { 558 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes: " 559 "Invalid number of records requested:\n flags 0x%X, " 560 "max_paths %d", flags, max_paths); 561 return (IBT_INVALID_PARAM); 562 } 563 564 /* 565 * If IBT_PATH_MULTI_SVC_DEST is set, then ServiceName and/or Service ID 566 * must be specified and DGIDs SHOULD NOT be specified. 567 */ 568 if ((flags & IBT_PATH_MULTI_SVC_DEST) && ((attrp->pa_num_dgids > 0) || 569 ((attrp->pa_sid == 0) && ((attrp->pa_sname == NULL) || 570 ((attrp->pa_sname != NULL) && (strlen(attrp->pa_sname) == 0)))))) { 571 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes: " 572 "Invalid Flags: 0x%X, IBT_PATH_MULTI_SVC_DEST flag set " 573 "but Service Name \n or Service ID NOT specified or DGIDs " 574 "are specified.", flags); 575 return (IBT_INVALID_PARAM); 576 } 577 578 /* 579 * User need to specify the destination information, which can be 580 * provided as one or more of the following. 581 * o ServiceName 582 * o ServiceID 583 * o Array of DGIDs w/Num of DGIDs, (max of 2) 584 */ 585 if ((attrp->pa_sid == 0) && (attrp->pa_num_dgids == 0) && 586 ((attrp->pa_sname == NULL) || ((attrp->pa_sname != NULL) && 587 (strlen(attrp->pa_sname) == 0)))) { 588 /* Destination information not provided, bail out. */ 589 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes: " 590 "Client's MUST supply DestInfo."); 591 return (IBT_INVALID_PARAM); 592 } 593 594 /* If DGIDs are provided, validate them. */ 595 if (attrp->pa_num_dgids > 0) { 596 if (attrp->pa_dgids == NULL) { 597 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes: " 598 "pa_dgids NULL, but pa_num_dgids : %d", 599 attrp->pa_num_dgids); 600 return (IBT_INVALID_PARAM); 601 } 602 603 /* Validate DGIDs */ 604 for (i = 0; i < attrp->pa_num_dgids; i++) { 605 ib_gid_t gid = attrp->pa_dgids[i]; 606 607 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes: " 608 "DGID[%d] = %llX:%llX", i, gid.gid_prefix, 609 gid.gid_guid); 610 611 /* APM request for MultiCast destination is invalid. */ 612 if ((gid.gid_prefix >> 56ULL & 0xFF) == 0xFF) { 613 if (flags & IBT_PATH_APM) { 614 IBTF_DPRINTF_L2(cmlog, 615 "ibcm_validate_path_attributes: " 616 "APM for MGIDs not supported."); 617 return (IBT_INVALID_PARAM); 618 } 619 } else if ((gid.gid_prefix == 0) || 620 (gid.gid_guid == 0)) { 621 IBTF_DPRINTF_L2(cmlog, 622 "ibcm_validate_path_attributes: ERROR: " 623 "Invalid DGIDs specified"); 624 return (IBT_INVALID_PARAM); 625 } 626 } 627 } 628 629 /* Check for valid Service Name length. */ 630 if ((attrp->pa_sname != NULL) && 631 (strlen(attrp->pa_sname) >= IB_SVC_NAME_LEN)) { 632 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes: " 633 "ServiceName too long"); 634 return (IBT_INVALID_PARAM); 635 } 636 637 /* If P_Key is specified, check for invalid p_key's */ 638 if (flags & IBT_PATH_PKEY) { 639 /* Limited P_Key is NOT supported as of now!. */ 640 if ((attrp->pa_pkey == IB_PKEY_INVALID_FULL) || 641 (attrp->pa_pkey & 0x8000) == 0) { 642 IBTF_DPRINTF_L2(cmlog, "ibcm_validate_path_attributes: " 643 "Specified P_Key is invalid: 0x%X", attrp->pa_pkey); 644 return (IBT_INVALID_PARAM); 645 } 646 IBTF_DPRINTF_L3(cmlog, "ibcm_validate_path_attributes: " 647 "P_Key= 0x%X", attrp->pa_pkey); 648 } 649 650 return (IBT_SUCCESS); 651 } 652 653 654 static ibt_status_t 655 ibcm_process_get_paths(void *tq_arg) 656 { 657 ibcm_path_tqargs_t *p_arg = (ibcm_path_tqargs_t *)tq_arg; 658 ibcm_dinfo_t *dinfo; 659 int len; 660 uint8_t max_paths, num_path; 661 ibt_status_t retval; 662 ib_gid_t *d_gids_p = NULL; 663 ibtl_cm_port_list_t *slistp = NULL; 664 uint_t dnum = 0, num_dest; 665 uint_t i, j; 666 ibcm_hca_info_t *hcap; 667 ibmf_saa_handle_t saa_handle; 668 669 IBTF_DPRINTF_L3(cmlog, "ibcm_process_get_paths(%p, 0x%X, %d) ", 670 p_arg, p_arg->flags, p_arg->max_paths); 671 672 max_paths = num_path = p_arg->max_paths; 673 674 /* 675 * Prepare the Destination list based on the input DGIDs and 676 * other attributes. 677 * 678 * APM is requested and pa_dgids are specified. If multiple DGIDs are 679 * specified, check out whether they are companion to each other or if 680 * only one DGID is specified, then get the companion port GID for that. 681 */ 682 if (p_arg->attr.pa_num_dgids) { 683 if (p_arg->flags & IBT_PATH_APM) { 684 ib_gid_t c_gid, n_gid; 685 686 IBTF_DPRINTF_L3(cmlog, "ibcm_process_get_paths: " 687 "DGIDs specified w/ APM Flag"); 688 689 c_gid = p_arg->attr.pa_dgids[0]; 690 if (p_arg->attr.pa_num_dgids > 1) 691 n_gid = p_arg->attr.pa_dgids[1]; 692 else 693 n_gid.gid_prefix = n_gid.gid_guid = 0; 694 695 retval = ibcm_get_comp_pgids(c_gid, n_gid, 0, &d_gids_p, 696 &dnum); 697 if ((retval != IBT_SUCCESS) && 698 (retval != IBT_GIDS_NOT_FOUND)) { 699 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_paths:" 700 " Invalid DGIDs specified w/ APM Flag"); 701 goto path_error2; 702 } 703 IBTF_DPRINTF_L3(cmlog, "ibcm_process_get_paths: " 704 "Found %d Comp DGID", dnum); 705 } 706 707 if (dnum) { 708 len = 1; 709 } else { 710 len = p_arg->attr.pa_num_dgids - 1; 711 } 712 num_dest = len + 1; 713 714 IBTF_DPRINTF_L3(cmlog, "ibcm_process_get_paths: #dgid %d, dnum " 715 "%d, #dest %d", p_arg->attr.pa_num_dgids, dnum, num_dest); 716 } else { 717 if (p_arg->flags & IBT_PATH_MULTI_SVC_DEST) { 718 IBTF_DPRINTF_L4(cmlog, "ibcm_process_get_paths: " 719 "IBT_PATH_MULTI_SVC_DEST flags set"); 720 len = max_paths - 1; 721 } else if (p_arg->flags & IBT_PATH_APM) { 722 len = 1; 723 } else { 724 len = 0; 725 } 726 num_dest = 0; 727 } 728 729 /* Allocate memory and accumulate all destination information */ 730 len = (len * sizeof (ibcm_dest_t)) + sizeof (ibcm_dinfo_t); 731 732 dinfo = kmem_zalloc(len, KM_SLEEP); 733 dinfo->num_dest = num_dest; 734 if (p_arg->flags & IBT_PATH_PKEY) 735 dinfo->p_key = p_arg->attr.pa_pkey; 736 737 for (i = 0, j = 0; i < num_dest; i++) { 738 if (i < p_arg->attr.pa_num_dgids) 739 dinfo->dest[i].d_gid = p_arg->attr.pa_dgids[i]; 740 else 741 dinfo->dest[i].d_gid = d_gids_p[j++]; 742 } 743 744 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*p_arg)) 745 746 /* IBTF allocates memory for path_info in case of Async Get Paths */ 747 if (p_arg->paths == NULL) 748 p_arg->paths = kmem_zalloc(sizeof (ibt_path_info_t) * max_paths, 749 KM_SLEEP); 750 751 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*p_arg)) 752 753 /* 754 * Get list of active HCA<->Port list, that matches input specified attr 755 */ 756 IBTF_DPRINTF_L3(cmlog, "ibcm_process_get_paths: Get Paths from \n HCA " 757 "(%llX:%d), SGID %llX:%llX", p_arg->attr.pa_hca_guid, 758 p_arg->attr.pa_hca_port_num, p_arg->attr.pa_sgid.gid_prefix, 759 p_arg->attr.pa_sgid.gid_guid); 760 761 retval = ibtl_cm_get_active_plist(&p_arg->attr, p_arg->flags, &slistp); 762 if (retval != IBT_SUCCESS) { 763 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_paths: HCA capable of " 764 "requested source attributes NOT available."); 765 goto path_error; 766 } 767 768 IBTF_DPRINTF_L3(cmlog, "ibcm_process_get_paths: HCA (%llX, %d)", 769 slistp->p_hca_guid, slistp->p_port_num); 770 771 hcap = ibcm_find_hca_entry(slistp->p_hca_guid); 772 if (hcap == NULL) { 773 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_paths: " 774 "NO HCA found"); 775 retval = IBT_HCA_BUSY_DETACHING; 776 goto path_error; 777 } 778 779 /* Get SA Access Handle. */ 780 for (i = 0; i < slistp->p_count; i++) { 781 if (i == 0) { 782 /* Validate whether this HCA supports APM */ 783 if ((p_arg->flags & IBT_PATH_APM) && 784 (!(hcap->hca_caps & IBT_HCA_AUTO_PATH_MIG))) { 785 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_paths:" 786 " HCA (%llX): APM NOT SUPPORTED ", 787 slistp[i].p_hca_guid); 788 retval = IBT_APM_NOT_SUPPORTED; 789 goto path_error1; 790 } 791 } 792 793 saa_handle = ibcm_get_saa_handle(hcap, slistp[i].p_port_num); 794 if (saa_handle == NULL) { 795 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_paths: " 796 "SAA HDL NULL, HCA (%llX:%d) NOT ACTIVE", 797 slistp[i].p_hca_guid, slistp[i].p_port_num); 798 retval = IBT_HCA_PORT_NOT_ACTIVE; 799 goto path_error1; 800 } 801 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*slistp)) 802 slistp[i].p_saa_hdl = saa_handle; 803 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*slistp)) 804 } 805 806 /* 807 * If Service Name or Service ID are specified, first retrieve 808 * Service Records. 809 */ 810 if ((p_arg->attr.pa_sid != 0) || ((p_arg->attr.pa_sname != NULL) && 811 (strlen(p_arg->attr.pa_sname) != 0))) { 812 813 IBTF_DPRINTF_L3(cmlog, "ibcm_process_get_paths: Get Service " 814 "Record for \n\t(%llX, \"%s\")", p_arg->attr.pa_sid, 815 ((p_arg->attr.pa_sname != NULL) ? 816 p_arg->attr.pa_sname : "")); 817 818 /* Get Service Records. */ 819 retval = ibcm_saa_service_rec(p_arg, slistp, dinfo); 820 if ((retval != IBT_SUCCESS) && (retval != IBT_INSUFF_DATA)) { 821 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_paths: Status=" 822 "%d, Failed to get Service Record for \n\t" 823 "(%llX, \"%s\")", retval, p_arg->attr.pa_sid, 824 ((p_arg->attr.pa_sname != NULL) ? 825 p_arg->attr.pa_sname : "")); 826 goto path_error1; 827 } 828 } 829 830 /* Get Path Records. */ 831 retval = ibcm_saa_path_rec(p_arg, slistp, dinfo, &num_path); 832 833 path_error1: 834 ibcm_dec_hca_acc_cnt(hcap); 835 836 path_error: 837 if (slistp) 838 ibtl_cm_free_active_plist(slistp); 839 840 if (dinfo) 841 kmem_free(dinfo, len); 842 843 path_error2: 844 if ((retval != IBT_SUCCESS) && (retval != IBT_INSUFF_DATA)) 845 num_path = 0; 846 847 if (p_arg->num_paths_p != NULL) 848 *p_arg->num_paths_p = num_path; 849 850 if ((dnum) && (d_gids_p)) 851 kmem_free(d_gids_p, dnum * sizeof (ib_gid_t)); 852 853 if (p_arg->func) { /* Do these only for Async Get Paths */ 854 ibt_path_info_t *tmp_path_p; 855 856 if (retval == IBT_INSUFF_DATA) { 857 /* 858 * We allocated earlier memory based on "max_paths", 859 * but we got lesser path-records, so re-adjust that 860 * buffer so that caller can free the correct memory. 861 */ 862 tmp_path_p = kmem_alloc( 863 sizeof (ibt_path_info_t) * num_path, KM_SLEEP); 864 865 bcopy(p_arg->paths, tmp_path_p, 866 num_path * sizeof (ibt_path_info_t)); 867 868 kmem_free(p_arg->paths, 869 sizeof (ibt_path_info_t) * max_paths); 870 } else if (retval != IBT_SUCCESS) { 871 if (p_arg->paths) 872 kmem_free(p_arg->paths, 873 sizeof (ibt_path_info_t) * max_paths); 874 tmp_path_p = NULL; 875 } else { 876 tmp_path_p = p_arg->paths; 877 } 878 (*(p_arg->func))(p_arg->arg, retval, tmp_path_p, num_path); 879 } 880 881 len = (sizeof (ib_gid_t) * p_arg->attr.pa_num_dgids) + 882 sizeof (ibcm_path_tqargs_t); 883 884 if (p_arg && len) 885 kmem_free(p_arg, len); 886 887 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_paths: done: status %d, " 888 "Found %d/%d Path Records", retval, num_path, max_paths); 889 890 return (retval); 891 } 892 893 894 /* 895 * Perform SA Access to retrieve Path Records. 896 */ 897 static ibt_status_t 898 ibcm_saa_path_rec(ibcm_path_tqargs_t *p_arg, ibtl_cm_port_list_t *sl, 899 ibcm_dinfo_t *dinfo, uint8_t *max_count) 900 { 901 uint8_t num_path = *max_count; 902 uint8_t num_path_plus; 903 uint_t extra, idx, rec_found = 0; 904 ibt_status_t retval = IBT_SUCCESS; 905 int unicast_dgid_present = 0; 906 uint8_t i; 907 908 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_path_rec(%p, %p, %p, 0x%X, %d)", 909 p_arg, sl, dinfo, p_arg->flags, *max_count); 910 911 if ((dinfo->num_dest == 0) || (num_path == 0) || (sl == NULL)) { 912 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_path_rec: Invalid Counters"); 913 return (IBT_INVALID_PARAM); 914 } 915 916 /* 917 * Of the total needed "X" number of paths to "Y" number of destination 918 * we need to get X/Y plus X%Y extra paths to each destination, 919 * We do this so that we can choose the required number of path records 920 * for the specific destination. 921 */ 922 num_path /= dinfo->num_dest; 923 extra = (*max_count % dinfo->num_dest); 924 925 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_path_rec: numpath %d extra %d dest %d", 926 num_path, extra, dinfo->num_dest); 927 928 /* 929 * Find out whether we need to get PathRecord for a MGID as DGID or 930 * qualifies for a LoopBack. 931 */ 932 for (idx = 0; idx < dinfo->num_dest; idx++) { 933 ib_gid_t dgid = dinfo->dest[idx].d_gid; 934 935 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_path_rec: DGID[%d]: %llX:%llX", 936 idx, dgid.gid_prefix, dgid.gid_guid); 937 938 if ((dgid.gid_prefix >> 56ULL & 0xFF) == 0xFF) { 939 if (extra) 940 num_path_plus = num_path + 1; 941 else 942 num_path_plus = num_path; 943 944 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_path_rec: Get %d Paths" 945 "- MGID(%016llX%016llX)", num_path_plus, 946 dgid.gid_prefix, dgid.gid_guid); 947 948 dinfo->dest[idx].d_tag = 1; /* MultiCast */ 949 950 /* Yes, it's Single PathRec query for MGID as DGID. */ 951 retval = ibcm_get_single_pathrec(p_arg, sl, dinfo, idx, 952 &num_path_plus, &p_arg->paths[rec_found]); 953 if ((retval != IBT_SUCCESS) && 954 (retval != IBT_INSUFF_DATA)) { 955 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_path_rec: " 956 "Failed to get PathRec for MGID %d", 957 retval); 958 continue; 959 } 960 if (extra) 961 extra--; 962 963 rec_found += num_path_plus; 964 } else { 965 /* 966 * Check out whether we are looking for loop-back path 967 * info. In this case, we should not contact SA Access 968 * for Path Records, but instead we need to "synthesize" 969 * a loop back path record. 970 */ 971 for (i = 0; i < sl->p_count; i++) { 972 if ((sl[i].p_sgid.gid_prefix == 973 dgid.gid_prefix) && 974 (sl[i].p_sgid.gid_guid == dgid.gid_guid)) { 975 976 dinfo->dest[idx].d_tag = 2; 977 978 /* Yes, it's loop back case. */ 979 retval = ibcm_fillin_loopbackinfo( 980 &sl[i], idx, dinfo, 981 &p_arg->paths[rec_found]); 982 if (retval != IBT_SUCCESS) 983 break; 984 985 /* 986 * We update only one record for 987 * loop-back case. 988 */ 989 rec_found++; 990 if (rec_found == *max_count) 991 break; 992 } 993 } 994 } 995 if (rec_found == *max_count) 996 break; 997 } 998 999 for (i = 0; i < dinfo->num_dest; i++) { 1000 if (dinfo->dest[i].d_tag == 0) { 1001 unicast_dgid_present++; 1002 } 1003 } 1004 1005 num_path_plus = *max_count - rec_found; 1006 1007 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_path_rec: Recfound: %d, need to find " 1008 "%d, UniCastGID present %d", rec_found, num_path_plus, 1009 unicast_dgid_present); 1010 1011 if ((unicast_dgid_present != 0) && (num_path_plus > 0)) { 1012 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_path_rec: MultiSM=%X, #SRC=%d," 1013 "Dest%d", sl->p_multi, sl->p_count, unicast_dgid_present); 1014 1015 if ((sl->p_multi != IBTL_CM_SIMPLE_SETUP) || 1016 ((unicast_dgid_present == 1) && (sl->p_count == 1))) { 1017 /* 1018 * Use SinglePathRec if we are dealing w/ MultiSM or 1019 * request is for one SGID to one DGID. 1020 */ 1021 retval = ibcm_get_single_pathrec(p_arg, sl, dinfo, 0xFF, 1022 &num_path_plus, &p_arg->paths[rec_found]); 1023 } else { 1024 /* MultiPathRec will be used for other queries. */ 1025 retval = ibcm_get_multi_pathrec(p_arg, sl, dinfo, 1026 &num_path_plus, &p_arg->paths[rec_found]); 1027 } 1028 if ((retval != IBT_SUCCESS) && (retval != IBT_INSUFF_DATA)) { 1029 IBTF_DPRINTF_L2(cmlog, "ibcm_saa_path_rec: " 1030 "Failed to get PathRec: Status %d", retval); 1031 } else { 1032 rec_found += num_path_plus; 1033 } 1034 } 1035 1036 if (rec_found == 0) { 1037 if (retval == IBT_SUCCESS) 1038 retval = IBT_PATH_RECORDS_NOT_FOUND; 1039 } else if (rec_found != *max_count) 1040 retval = IBT_INSUFF_DATA; 1041 else if (rec_found != 0) 1042 retval = IBT_SUCCESS; 1043 1044 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_path_rec: done. Status = %d, " 1045 "Found %d/%d Paths", retval, rec_found, *max_count); 1046 1047 *max_count = rec_found; /* Update the return count. */ 1048 1049 return (retval); 1050 } 1051 1052 ibt_status_t 1053 ibcm_contact_sa_access(ibmf_saa_handle_t saa_handle, 1054 ibmf_saa_access_args_t *access_args, size_t *length, void **results_p) 1055 { 1056 int retry; 1057 int sa_retval; 1058 1059 IBTF_DPRINTF_L3(cmlog, "ibcm_contact_sa_access(%p, %p)", 1060 saa_handle, access_args); 1061 1062 ibcm_sa_access_enter(); 1063 1064 for (retry = 0; retry < ibcm_max_sa_retries; retry++) { 1065 sa_retval = ibmf_sa_access(saa_handle, access_args, 0, 1066 length, results_p); 1067 if (sa_retval != IBMF_TRANS_TIMEOUT) 1068 break; 1069 1070 IBTF_DPRINTF_L2(cmlog, "ibcm_contact_sa_access: " 1071 "ibmf_sa_access() - Timed Out (%d)", sa_retval); 1072 delay(ibcm_sa_timeout_delay); 1073 } 1074 1075 ibcm_sa_access_exit(); 1076 1077 if ((sa_retval == IBMF_SUCCESS) || (sa_retval == IBMF_NO_RECORDS) || 1078 (sa_retval == IBMF_REQ_INVALID)) { 1079 IBTF_DPRINTF_L3(cmlog, "ibcm_contact_sa_access: " 1080 "ibmf_sa_access() returned (%d)", sa_retval); 1081 return (IBT_SUCCESS); 1082 } else { 1083 IBTF_DPRINTF_L2(cmlog, "ibcm_contact_sa_access: " 1084 "ibmf_sa_access(): Failed (%d)", sa_retval); 1085 return (ibcm_ibmf_analyze_error(sa_retval)); 1086 } 1087 } 1088 1089 1090 static ibt_status_t 1091 ibcm_update_pri(sa_path_record_t *pr_resp, ibtl_cm_port_list_t *sl, 1092 ibcm_dinfo_t *dinfo, ibt_path_info_t *paths) 1093 { 1094 ibt_status_t retval = IBT_SUCCESS; 1095 int d, s; 1096 1097 retval = ibcm_update_cep_info(pr_resp, sl, NULL, 1098 &paths->pi_prim_cep_path); 1099 if (retval != IBT_SUCCESS) 1100 return (retval); 1101 1102 /* Update some leftovers */ 1103 paths->pi_prim_pkt_lt = pr_resp->PacketLifeTime; 1104 paths->pi_path_mtu = pr_resp->Mtu; 1105 1106 for (d = 0; d < dinfo->num_dest; d++) { 1107 if (pr_resp->DGID.gid_guid == dinfo->dest[d].d_gid.gid_guid) { 1108 paths->pi_sid = dinfo->dest[d].d_sid; 1109 if (paths->pi_sid != 0) { 1110 bcopy(&dinfo->dest[d].d_sdata, 1111 &paths->pi_sdata, sizeof (ibt_srv_data_t)); 1112 } 1113 break; 1114 } 1115 } 1116 1117 for (s = 0; s < sl->p_count; s++) { 1118 if (pr_resp->SGID.gid_guid == sl[s].p_sgid.gid_guid) { 1119 paths->pi_hca_guid = sl[s].p_hca_guid; 1120 } 1121 } 1122 1123 /* Set Alternate Path to invalid state. */ 1124 paths->pi_alt_cep_path.cep_hca_port_num = 0; 1125 paths->pi_alt_cep_path.cep_adds_vect.av_dlid = 0; 1126 1127 IBTF_DPRINTF_L5(cmlog, "Path: HCA GUID = 0x%llX", paths->pi_hca_guid); 1128 IBTF_DPRINTF_L5(cmlog, "Path: ServiceID = 0x%llX", paths->pi_sid); 1129 1130 return (retval); 1131 } 1132 1133 1134 static ibt_status_t 1135 ibcm_get_single_pathrec(ibcm_path_tqargs_t *p_arg, ibtl_cm_port_list_t *sl, 1136 ibcm_dinfo_t *dinfo, uint8_t idx, uint8_t *num_path, ibt_path_info_t *paths) 1137 { 1138 sa_path_record_t pathrec_req; 1139 sa_path_record_t *pr_resp; 1140 ibmf_saa_access_args_t access_args; 1141 uint64_t c_mask = 0; 1142 void *results_p; 1143 uint8_t num_rec; 1144 size_t length; 1145 ibt_status_t retval; 1146 int i, j, k; 1147 int found, p_fnd; 1148 ibt_path_attr_t *attrp = &p_arg->attr; 1149 ibmf_saa_handle_t saa_handle; 1150 1151 IBTF_DPRINTF_L3(cmlog, "ibcm_get_single_pathrec(%p, %p, %p, %d)", 1152 p_arg, sl, dinfo, *num_path); 1153 1154 bzero(&pathrec_req, sizeof (sa_path_record_t)); 1155 1156 /* Is Flow Label Specified. */ 1157 if (attrp->pa_flow) { 1158 pathrec_req.FlowLabel = attrp->pa_flow; 1159 c_mask |= SA_PR_COMPMASK_FLOWLABEL; 1160 } 1161 1162 /* Is HopLimit Specified. */ 1163 if (p_arg->flags & IBT_PATH_HOP) { 1164 pathrec_req.HopLimit = attrp->pa_hop; 1165 c_mask |= SA_PR_COMPMASK_HOPLIMIT; 1166 } 1167 1168 /* Is P_Key Specified. */ 1169 if (dinfo->p_key) { 1170 IBTF_DPRINTF_L3(cmlog, "ibcm_get_single_pathrec: " 1171 "Specified or Global PKEY 0x%X", dinfo->p_key); 1172 pathrec_req.P_Key = dinfo->p_key; 1173 c_mask |= SA_PR_COMPMASK_PKEY; 1174 } 1175 1176 /* Is TClass Specified. */ 1177 if (attrp->pa_tclass) { 1178 pathrec_req.TClass = attrp->pa_tclass; 1179 c_mask |= SA_PR_COMPMASK_TCLASS; 1180 } 1181 1182 /* Is SL specified. */ 1183 if (attrp->pa_sl) { 1184 pathrec_req.SL = attrp->pa_sl; 1185 c_mask |= SA_PR_COMPMASK_SL; 1186 } 1187 1188 /* If IBT_PATH_PERF is set, then mark all selectors to BEST. */ 1189 if (p_arg->flags & IBT_PATH_PERF) { 1190 pathrec_req.PacketLifeTimeSelector = IBT_BEST; 1191 pathrec_req.MtuSelector = IBT_BEST; 1192 pathrec_req.RateSelector = IBT_BEST; 1193 1194 c_mask |= SA_PR_COMPMASK_PKTLTSELECTOR | 1195 SA_PR_COMPMASK_RATESELECTOR | SA_PR_COMPMASK_MTUSELECTOR; 1196 } else { 1197 if (attrp->pa_pkt_lt.p_selector == IBT_BEST) { 1198 pathrec_req.PacketLifeTimeSelector = IBT_BEST; 1199 c_mask |= SA_PR_COMPMASK_PKTLTSELECTOR; 1200 } 1201 1202 if (attrp->pa_srate.r_selector == IBT_BEST) { 1203 pathrec_req.RateSelector = IBT_BEST; 1204 c_mask |= SA_PR_COMPMASK_RATESELECTOR; 1205 } 1206 1207 if (attrp->pa_mtu.r_selector == IBT_BEST) { 1208 pathrec_req.MtuSelector = IBT_BEST; 1209 c_mask |= SA_PR_COMPMASK_MTUSELECTOR; 1210 } 1211 } 1212 1213 /* 1214 * Honor individual selection of these attributes, 1215 * even if IBT_PATH_PERF is set. 1216 */ 1217 /* Check out whether Packet Life Time is specified. */ 1218 if (attrp->pa_pkt_lt.p_pkt_lt) { 1219 pathrec_req.PacketLifeTime = 1220 ibt_usec2ib(attrp->pa_pkt_lt.p_pkt_lt); 1221 pathrec_req.PacketLifeTimeSelector = 1222 attrp->pa_pkt_lt.p_selector; 1223 1224 c_mask |= SA_PR_COMPMASK_PKTLT | SA_PR_COMPMASK_PKTLTSELECTOR; 1225 } 1226 1227 /* Is SRATE specified. */ 1228 if (attrp->pa_srate.r_srate) { 1229 pathrec_req.Rate = attrp->pa_srate.r_srate; 1230 pathrec_req.RateSelector = attrp->pa_srate.r_selector; 1231 1232 c_mask |= SA_PR_COMPMASK_RATE | SA_PR_COMPMASK_RATESELECTOR; 1233 } 1234 1235 /* Is MTU specified. */ 1236 if (attrp->pa_mtu.r_mtu) { 1237 pathrec_req.Mtu = attrp->pa_mtu.r_mtu; 1238 pathrec_req.MtuSelector = attrp->pa_mtu.r_selector; 1239 1240 c_mask |= SA_PR_COMPMASK_MTU | SA_PR_COMPMASK_MTUSELECTOR; 1241 } 1242 1243 /* We always get REVERSIBLE paths. */ 1244 pathrec_req.Reversible = 1; 1245 c_mask |= SA_PR_COMPMASK_REVERSIBLE; 1246 1247 pathrec_req.NumbPath = *num_path; 1248 c_mask |= SA_PR_COMPMASK_NUMBPATH; 1249 1250 if (idx != 0xFF) { 1251 /* MGID */ 1252 pathrec_req.DGID = dinfo->dest[idx].d_gid; 1253 c_mask |= SA_PR_COMPMASK_DGID; 1254 } 1255 1256 p_fnd = found = 0; 1257 1258 for (i = 0; i < sl->p_count; i++) { 1259 /* SGID */ 1260 pathrec_req.SGID = sl[i].p_sgid; 1261 c_mask |= SA_PR_COMPMASK_SGID; 1262 saa_handle = sl[i].p_saa_hdl; 1263 1264 for (k = 0; k < dinfo->num_dest; k++) { 1265 if (idx == 0xFF) { /* DGID */ 1266 if (dinfo->dest[k].d_tag != 0) 1267 continue; 1268 1269 if (pathrec_req.SGID.gid_prefix != 1270 dinfo->dest[k].d_gid.gid_prefix) { 1271 IBTF_DPRINTF_L3(cmlog, 1272 "ibcm_get_single_pathrec: SGID_pfx=" 1273 "%llX, DGID_pfx=%llX doesn't match", 1274 pathrec_req.SGID.gid_prefix, 1275 dinfo->dest[k].d_gid.gid_prefix); 1276 continue; 1277 } else if (pathrec_req.SGID.gid_guid == 1278 pathrec_req.DGID.gid_guid) { 1279 IBTF_DPRINTF_L3(cmlog, 1280 "ibcm_get_single_pathrec: Why " 1281 "LoopBack request came here!!!! " 1282 "GID(%llX:%llX)", 1283 pathrec_req.SGID.gid_prefix, 1284 pathrec_req.SGID.gid_guid); 1285 continue; 1286 } 1287 1288 pathrec_req.DGID = dinfo->dest[k].d_gid; 1289 c_mask |= SA_PR_COMPMASK_DGID; 1290 1291 /* 1292 * If we had performed Service Look-up, then we 1293 * got P_Key from ServiceRecord, so get path 1294 * records that satisfy this particular P_Key. 1295 */ 1296 if ((dinfo->p_key == 0) && 1297 (dinfo->dest[k].d_pkey != 0)) { 1298 pathrec_req.P_Key = 1299 dinfo->dest[k].d_pkey; 1300 c_mask |= SA_PR_COMPMASK_PKEY; 1301 } 1302 } 1303 1304 IBTF_DPRINTF_L3(cmlog, "ibcm_get_single_pathrec: " 1305 "Get %d Path(s) between\nSGID %llX:%llX " 1306 "DGID %llX:%llX", pathrec_req.NumbPath, 1307 pathrec_req.SGID.gid_prefix, 1308 pathrec_req.SGID.gid_guid, 1309 pathrec_req.DGID.gid_prefix, 1310 pathrec_req.DGID.gid_guid); 1311 1312 IBTF_DPRINTF_L3(cmlog, "ibcm_get_single_pathrec: CMask" 1313 "=0x%llX, PKey=0x%X", c_mask, pathrec_req.P_Key); 1314 1315 /* Contact SA Access to retrieve Path Records. */ 1316 access_args.sq_attr_id = SA_PATHRECORD_ATTRID; 1317 access_args.sq_template = &pathrec_req; 1318 access_args.sq_access_type = IBMF_SAA_RETRIEVE; 1319 access_args.sq_template_length = 1320 sizeof (sa_path_record_t); 1321 access_args.sq_component_mask = c_mask; 1322 access_args.sq_callback = NULL; 1323 access_args.sq_callback_arg = NULL; 1324 1325 retval = ibcm_contact_sa_access(saa_handle, 1326 &access_args, &length, &results_p); 1327 if (retval != IBT_SUCCESS) { 1328 *num_path = 0; 1329 return (retval); 1330 } 1331 1332 num_rec = length / sizeof (sa_path_record_t); 1333 1334 IBTF_DPRINTF_L3(cmlog, "ibcm_get_single_pathrec: " 1335 "FOUND %d/%d path requested", num_rec, *num_path); 1336 1337 if ((results_p == NULL) || (num_rec == 0)) { 1338 if (idx != 0xFF) 1339 break; 1340 else 1341 continue; 1342 } 1343 1344 /* Update the PathInfo from the response. */ 1345 pr_resp = (sa_path_record_t *)results_p; 1346 for (j = 0; j < num_rec; j++, pr_resp++) { 1347 if ((p_fnd != 0) && 1348 (p_arg->flags & IBT_PATH_APM)) { 1349 IBTF_DPRINTF_L3(cmlog, 1350 "ibcm_get_single_pathrec: " 1351 "Fill Alternate Path"); 1352 retval = ibcm_update_cep_info(pr_resp, 1353 sl, NULL, 1354 &paths[found - 1].pi_alt_cep_path); 1355 if (retval != IBT_SUCCESS) 1356 continue; 1357 1358 /* Update some leftovers */ 1359 paths[found - 1].pi_alt_pkt_lt = 1360 pr_resp->PacketLifeTime; 1361 p_fnd = 0; 1362 } else { 1363 IBTF_DPRINTF_L3(cmlog, 1364 "ibcm_get_single_pathrec: " 1365 "Fill Primary Path"); 1366 1367 if (found == *num_path) 1368 break; 1369 1370 retval = ibcm_update_pri(pr_resp, sl, 1371 dinfo, &paths[found]); 1372 if (retval != IBT_SUCCESS) 1373 continue; 1374 p_fnd = 1; 1375 found++; 1376 } 1377 1378 } 1379 /* Deallocate the memory for results_p. */ 1380 kmem_free(results_p, length); 1381 1382 if (idx != 0xFF) 1383 break; /* We r here for MGID */ 1384 } 1385 if ((idx != 0xFF) && (found == *num_path)) 1386 break; /* We r here for MGID */ 1387 } 1388 1389 if (found == 0) 1390 retval = IBT_PATH_RECORDS_NOT_FOUND; 1391 else if (found != *num_path) 1392 retval = IBT_INSUFF_DATA; 1393 else 1394 retval = IBT_SUCCESS; 1395 1396 IBTF_DPRINTF_L3(cmlog, "ibcm_get_single_pathrec: done. Status %d, " 1397 "Found %d/%d Paths", retval, found, *num_path); 1398 1399 *num_path = found; 1400 1401 return (retval); 1402 } 1403 1404 1405 static ibt_status_t 1406 ibcm_get_multi_pathrec(ibcm_path_tqargs_t *p_arg, ibtl_cm_port_list_t *sl, 1407 ibcm_dinfo_t *dinfo, uint8_t *num_path, ibt_path_info_t *paths) 1408 { 1409 sa_multipath_record_t *mpr_req; 1410 sa_path_record_t *pr_resp; 1411 ibmf_saa_access_args_t access_args; 1412 void *results_p; 1413 uint64_t c_mask = 0; 1414 ib_gid_t *gid_ptr, *gid_s_ptr; 1415 size_t length; 1416 int template_len, found, num_rec; 1417 int i, k; 1418 ibt_status_t retval; 1419 uint8_t sgid_cnt, dgid_cnt; 1420 ibt_path_attr_t *attrp = &p_arg->attr; 1421 1422 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec(%p, %p, %p, %d)", 1423 attrp, sl, dinfo, *num_path); 1424 1425 for (i = 0, dgid_cnt = 0; i < dinfo->num_dest; i++) { 1426 if (dinfo->dest[i].d_tag == 0) 1427 dgid_cnt++; 1428 } 1429 1430 sgid_cnt = sl->p_count; 1431 1432 if ((sgid_cnt == 0) || (dgid_cnt == 0)) { 1433 IBTF_DPRINTF_L2(cmlog, "ibcm_get_multi_pathrec: sgid_cnt(%d) or" 1434 " dgid_cnt(%d) is zero", sgid_cnt, dgid_cnt); 1435 return (IBT_INVALID_PARAM); 1436 } 1437 1438 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec: Get %d records between " 1439 "%d Src(s) <=> %d Dest(s)", *num_path, sgid_cnt, dgid_cnt); 1440 1441 /* 1442 * Calculate the size for multi-path records template, which includes 1443 * constant portion of the multipath record, plus variable size for 1444 * SGID (sgid_cnt) and DGID (dgid_cnt). 1445 */ 1446 template_len = ((dgid_cnt + sgid_cnt) * sizeof (ib_gid_t)) + 1447 sizeof (sa_multipath_record_t); 1448 1449 mpr_req = kmem_zalloc(template_len, KM_SLEEP); 1450 1451 ASSERT(mpr_req != NULL); 1452 1453 gid_ptr = (ib_gid_t *)(((uchar_t *)mpr_req) + 1454 sizeof (sa_multipath_record_t)); 1455 1456 /* Get the starting pointer where GIDs are stored. */ 1457 gid_s_ptr = gid_ptr; 1458 1459 /* SGID */ 1460 for (i = 0; i < sl->p_count; i++) { 1461 *gid_ptr = sl[i].p_sgid; 1462 1463 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec: SGID[%d] = " 1464 "(%llX:%llX)", i, gid_ptr->gid_prefix, gid_ptr->gid_guid); 1465 1466 gid_ptr++; 1467 } 1468 1469 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*mpr_req)) 1470 1471 mpr_req->SGIDCount = sgid_cnt; 1472 c_mask = SA_MPR_COMPMASK_SGIDCOUNT; 1473 1474 /* DGIDs */ 1475 for (i = 0; i < dinfo->num_dest; i++) { 1476 if (dinfo->dest[i].d_tag == 0) { 1477 *gid_ptr = dinfo->dest[i].d_gid; 1478 1479 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec: " 1480 "DGID[%d] = (%llX:%llX)", i, gid_ptr->gid_prefix, 1481 gid_ptr->gid_guid); 1482 gid_ptr++; 1483 } 1484 } 1485 1486 mpr_req->DGIDCount = dgid_cnt; 1487 c_mask |= SA_MPR_COMPMASK_DGIDCOUNT; 1488 1489 /* Is Flow Label Specified. */ 1490 if (attrp->pa_flow) { 1491 mpr_req->FlowLabel = attrp->pa_flow; 1492 c_mask |= SA_MPR_COMPMASK_FLOWLABEL; 1493 } 1494 1495 /* Is HopLimit Specified. */ 1496 if (p_arg->flags & IBT_PATH_HOP) { 1497 mpr_req->HopLimit = attrp->pa_hop; 1498 c_mask |= SA_MPR_COMPMASK_HOPLIMIT; 1499 } 1500 1501 /* Is TClass Specified. */ 1502 if (attrp->pa_tclass) { 1503 mpr_req->TClass = attrp->pa_tclass; 1504 c_mask |= SA_MPR_COMPMASK_TCLASS; 1505 } 1506 1507 /* Is SL specified. */ 1508 if (attrp->pa_sl) { 1509 mpr_req->SL = attrp->pa_sl; 1510 c_mask |= SA_MPR_COMPMASK_SL; 1511 } 1512 1513 if (p_arg->flags & IBT_PATH_PERF) { 1514 mpr_req->PacketLifeTimeSelector = IBT_BEST; 1515 mpr_req->RateSelector = IBT_BEST; 1516 mpr_req->MtuSelector = IBT_BEST; 1517 1518 c_mask |= SA_MPR_COMPMASK_PKTLTSELECTOR | 1519 SA_MPR_COMPMASK_RATESELECTOR | SA_MPR_COMPMASK_MTUSELECTOR; 1520 } else { 1521 if (attrp->pa_pkt_lt.p_selector == IBT_BEST) { 1522 mpr_req->PacketLifeTimeSelector = IBT_BEST; 1523 c_mask |= SA_MPR_COMPMASK_PKTLTSELECTOR; 1524 } 1525 1526 if (attrp->pa_srate.r_selector == IBT_BEST) { 1527 mpr_req->RateSelector = IBT_BEST; 1528 c_mask |= SA_MPR_COMPMASK_RATESELECTOR; 1529 } 1530 1531 if (attrp->pa_mtu.r_selector == IBT_BEST) { 1532 mpr_req->MtuSelector = IBT_BEST; 1533 c_mask |= SA_MPR_COMPMASK_MTUSELECTOR; 1534 } 1535 } 1536 1537 /* 1538 * Honor individual selection of these attributes, 1539 * even if IBT_PATH_PERF is set. 1540 */ 1541 /* Check out whether Packet Life Time is specified. */ 1542 if (attrp->pa_pkt_lt.p_pkt_lt) { 1543 mpr_req->PacketLifeTime = 1544 ibt_usec2ib(attrp->pa_pkt_lt.p_pkt_lt); 1545 mpr_req->PacketLifeTimeSelector = 1546 attrp->pa_pkt_lt.p_selector; 1547 1548 c_mask |= SA_MPR_COMPMASK_PKTLT | 1549 SA_MPR_COMPMASK_PKTLTSELECTOR; 1550 } 1551 1552 /* Is SRATE specified. */ 1553 if (attrp->pa_srate.r_srate) { 1554 mpr_req->Rate = attrp->pa_srate.r_srate; 1555 mpr_req->RateSelector = attrp->pa_srate.r_selector; 1556 1557 c_mask |= SA_MPR_COMPMASK_RATE | 1558 SA_MPR_COMPMASK_RATESELECTOR; 1559 } 1560 1561 /* Is MTU specified. */ 1562 if (attrp->pa_mtu.r_mtu) { 1563 mpr_req->Mtu = attrp->pa_mtu.r_mtu; 1564 mpr_req->MtuSelector = attrp->pa_mtu.r_selector; 1565 1566 c_mask |= SA_MPR_COMPMASK_MTU | 1567 SA_MPR_COMPMASK_MTUSELECTOR; 1568 } 1569 1570 /* Is P_Key Specified or obtained during Service Look-up. */ 1571 if (dinfo->p_key) { 1572 mpr_req->P_Key = dinfo->p_key; 1573 c_mask |= SA_MPR_COMPMASK_PKEY; 1574 } 1575 1576 /* We always get REVERSIBLE paths. */ 1577 mpr_req->Reversible = 1; 1578 c_mask |= SA_MPR_COMPMASK_REVERSIBLE; 1579 1580 if (p_arg->flags & IBT_PATH_AVAIL) { 1581 mpr_req->IndependenceSelector = 1; 1582 c_mask |= SA_MPR_COMPMASK_INDEPSEL; 1583 } 1584 1585 /* we will not specify how many records we want. */ 1586 1587 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*mpr_req)) 1588 1589 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec: CMask: %llX Pkey: %X", 1590 c_mask, mpr_req->P_Key); 1591 1592 /* Contact SA Access to retrieve Path Records. */ 1593 access_args.sq_attr_id = SA_MULTIPATHRECORD_ATTRID; 1594 access_args.sq_access_type = IBMF_SAA_RETRIEVE; 1595 access_args.sq_component_mask = c_mask; 1596 access_args.sq_template = mpr_req; 1597 access_args.sq_template_length = sizeof (sa_multipath_record_t); 1598 access_args.sq_callback = NULL; 1599 access_args.sq_callback_arg = NULL; 1600 1601 retval = ibcm_contact_sa_access(sl->p_saa_hdl, &access_args, &length, 1602 &results_p); 1603 if (retval != IBT_SUCCESS) { 1604 *num_path = 0; /* Update the return count. */ 1605 kmem_free(mpr_req, template_len); 1606 return (retval); 1607 } 1608 1609 num_rec = length / sizeof (sa_path_record_t); 1610 1611 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec: Found %d Paths", 1612 num_rec); 1613 1614 found = 0; 1615 if ((results_p != NULL) && (num_rec > 0)) { 1616 /* Update the PathInfo with the response Path Records */ 1617 pr_resp = (sa_path_record_t *)results_p; 1618 1619 for (i = 0; i < num_rec; i++) { 1620 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec: " 1621 "P[%d]: SG %llX, DG %llX", i, 1622 pr_resp[i].SGID.gid_guid, pr_resp[i].DGID.gid_guid); 1623 } 1624 1625 if (p_arg->flags & (IBT_PATH_APM | IBT_PATH_AVAIL)) { 1626 sa_path_record_t *p_resp = NULL, *a_resp = NULL; 1627 sa_path_record_t *p_tmp = NULL, *a_tmp = NULL; 1628 int p_found = 0, a_found = 0; 1629 ib_gid_t p_sg, a_sg, p_dg, a_dg; 1630 int p_tmp_found = 0, a_tmp_found = 0; 1631 1632 p_sg = gid_s_ptr[0]; 1633 if (sgid_cnt > 1) 1634 a_sg = gid_s_ptr[1]; 1635 else 1636 a_sg = p_sg; 1637 1638 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec: " 1639 "REQ: P_SG: %llX, A_SG: %llX", 1640 p_sg.gid_guid, a_sg.gid_guid); 1641 1642 p_dg = gid_s_ptr[sgid_cnt]; 1643 if (dgid_cnt > 1) 1644 a_dg = gid_s_ptr[sgid_cnt + 1]; 1645 else 1646 a_dg = p_dg; 1647 1648 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec: " 1649 "REQ: P_DG: %llX, A_DG: %llX", 1650 p_dg.gid_guid, a_dg.gid_guid); 1651 1652 /* 1653 * If SGID and/or DGID is specified by user, make sure 1654 * he gets his primary-path on those node points. 1655 */ 1656 for (i = 0; i < num_rec; i++, pr_resp++) { 1657 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec:" 1658 " PF %d, AF %d,\n\t\t P[%d] = SG: %llX, " 1659 "DG: %llX", p_found, a_found, i, 1660 pr_resp->SGID.gid_guid, 1661 pr_resp->DGID.gid_guid); 1662 1663 if ((!p_found) && 1664 (p_dg.gid_guid == pr_resp->DGID.gid_guid)) { 1665 IBTF_DPRINTF_L3(cmlog, 1666 "ibcm_get_multi_pathrec: " 1667 "Pri DGID Match.. "); 1668 if (p_sg.gid_guid == 1669 pr_resp->SGID.gid_guid) { 1670 p_found = 1; 1671 p_resp = pr_resp; 1672 IBTF_DPRINTF_L3(cmlog, 1673 "ibcm_get_multi_pathrec: " 1674 "Primary Path Found"); 1675 1676 if (a_found) 1677 break; 1678 else 1679 continue; 1680 } else if ((!p_tmp_found) && 1681 (a_sg.gid_guid == 1682 pr_resp->SGID.gid_guid)) { 1683 p_tmp_found = 1; 1684 p_tmp = pr_resp; 1685 IBTF_DPRINTF_L3(cmlog, 1686 "ibcm_get_multi_pathrec: " 1687 "Tmp Pri Path Found"); 1688 } 1689 IBTF_DPRINTF_L3(cmlog, 1690 "ibcm_get_multi_pathrec:" 1691 "Pri SGID Don't Match.. "); 1692 } 1693 1694 if ((!a_found) && 1695 (a_dg.gid_guid == pr_resp->DGID.gid_guid)) { 1696 IBTF_DPRINTF_L3(cmlog, 1697 "ibcm_get_multi_pathrec:" 1698 "Alt DGID Match.. "); 1699 if (a_sg.gid_guid == 1700 pr_resp->SGID.gid_guid) { 1701 a_found = 1; 1702 a_resp = pr_resp; 1703 1704 IBTF_DPRINTF_L3(cmlog, 1705 "ibcm_get_multi_pathrec:" 1706 "Alternate Path Found "); 1707 1708 if (p_found) 1709 break; 1710 else 1711 continue; 1712 } else if ((!a_tmp_found) && 1713 (p_sg.gid_guid == 1714 pr_resp->SGID.gid_guid)) { 1715 a_tmp_found = 1; 1716 a_tmp = pr_resp; 1717 1718 IBTF_DPRINTF_L3(cmlog, 1719 "ibcm_get_multi_pathrec:" 1720 "Tmp Alt Path Found "); 1721 } 1722 IBTF_DPRINTF_L3(cmlog, 1723 "ibcm_get_multi_pathrec:" 1724 "Alt SGID Don't Match.. "); 1725 } 1726 } 1727 1728 if ((p_found == 0) && (a_found == 0) && 1729 (p_tmp_found == 0) && (a_tmp_found == 0)) { 1730 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec:" 1731 " Path to desired node points NOT " 1732 "Available."); 1733 retval = IBT_PATH_RECORDS_NOT_FOUND; 1734 goto get_mpr_end; 1735 } 1736 1737 if (p_resp == NULL) { 1738 if (a_resp != NULL) { 1739 p_resp = a_resp; 1740 a_resp = NULL; 1741 } else if (p_tmp != NULL) { 1742 p_resp = p_tmp; 1743 p_tmp = NULL; 1744 } else if (a_tmp != NULL) { 1745 p_resp = a_tmp; 1746 a_tmp = NULL; 1747 } 1748 } 1749 if (a_resp == NULL) { 1750 if (a_tmp != NULL) { 1751 a_resp = a_tmp; 1752 a_tmp = NULL; 1753 } else if (p_tmp != NULL) { 1754 a_resp = p_tmp; 1755 p_tmp = NULL; 1756 } 1757 } 1758 1759 /* Fill in Primary Path */ 1760 retval = ibcm_update_pri(p_resp, sl, dinfo, 1761 &paths[found]); 1762 if (retval != IBT_SUCCESS) 1763 goto get_mpr_end; 1764 1765 if (p_arg->flags & IBT_PATH_APM) { 1766 /* Fill in Alternate Path */ 1767 if (a_resp != NULL) { 1768 /* 1769 * a_resp will point to AltPathInfo 1770 * buffer. 1771 */ 1772 retval = ibcm_update_cep_info(a_resp, 1773 sl, NULL, 1774 &paths[found].pi_alt_cep_path); 1775 if (retval != IBT_SUCCESS) 1776 goto get_mpr_end; 1777 1778 /* Update some leftovers */ 1779 paths[found].pi_alt_pkt_lt = 1780 a_resp->PacketLifeTime; 1781 } else { 1782 IBTF_DPRINTF_L3(cmlog, 1783 "ibcm_get_multi_pathrec:" 1784 " Alternate Path NOT Available."); 1785 retval = IBT_INSUFF_DATA; 1786 } 1787 found++; 1788 } else if (p_arg->flags & IBT_PATH_AVAIL) { 1789 found++; 1790 1791 if (found < *num_path) { 1792 1793 /* Fill in second Path */ 1794 if (a_resp != NULL) { 1795 retval = ibcm_update_pri(a_resp, 1796 sl, dinfo, &paths[found]); 1797 if (retval != IBT_SUCCESS) 1798 goto get_mpr_end; 1799 else 1800 found++; 1801 } else { 1802 IBTF_DPRINTF_L3(cmlog, 1803 "ibcm_get_multi_pathrec: " 1804 "SecondPath NOT Available"); 1805 retval = IBT_INSUFF_DATA; 1806 } 1807 } 1808 } 1809 } else { /* If NOT APM */ 1810 boolean_t check_pkey = B_FALSE; 1811 1812 /* mark flag whether to validate PKey or not. */ 1813 if ((dinfo->p_key == 0) && (dinfo->dest[0].d_pkey != 0)) 1814 check_pkey = B_TRUE; 1815 1816 for (i = 0; i < num_rec; i++, pr_resp++) { 1817 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec:" 1818 " PKeyCheck - %s, PKey=0x%X, DGID(%llX)", 1819 ((check_pkey == B_TRUE)?"REQD":"NOT_REQD"), 1820 pr_resp->P_Key, pr_resp->DGID.gid_guid); 1821 1822 if (check_pkey == B_TRUE) { 1823 boolean_t match_found = B_FALSE; 1824 1825 /* For all DGIDs */ 1826 for (k = 0; k < dinfo->num_dest; k++) { 1827 if (dinfo->dest[k].d_tag != 0) 1828 continue; 1829 1830 if ((dinfo->dest[k].d_gid. 1831 gid_guid == 1832 pr_resp->DGID.gid_guid) && 1833 (dinfo->dest[k].d_pkey == 1834 pr_resp->P_Key)) { 1835 match_found = B_TRUE; 1836 break; 1837 } 1838 } 1839 if (match_found == B_FALSE) 1840 continue; 1841 } 1842 /* Fill in Primary Path */ 1843 retval = ibcm_update_pri(pr_resp, sl, dinfo, 1844 &paths[found]); 1845 if (retval != IBT_SUCCESS) 1846 continue; 1847 1848 if (++found == *num_path) 1849 break; 1850 } 1851 } 1852 get_mpr_end: 1853 kmem_free(results_p, length); 1854 } 1855 kmem_free(mpr_req, template_len); 1856 1857 if (found == 0) 1858 retval = IBT_PATH_RECORDS_NOT_FOUND; 1859 else if (found != *num_path) 1860 retval = IBT_INSUFF_DATA; 1861 else 1862 retval = IBT_SUCCESS; 1863 1864 IBTF_DPRINTF_L3(cmlog, "ibcm_get_multi_pathrec: Done (status %d). " 1865 "Found %d/%d Paths", retval, found, *num_path); 1866 1867 *num_path = found; /* Update the return count. */ 1868 1869 return (retval); 1870 } 1871 1872 1873 /* 1874 * Here we "synthesize" loop back path record information. 1875 * 1876 * Currently the synthesize values are assumed as follows: 1877 * SLID, DLID = Base LID from Query HCA Port. 1878 * FlowLabel, HopLimit, TClass = 0, as GRH is False. 1879 * RawTraffic = 0. 1880 * P_Key = first valid one in P_Key table as obtained from Query HCA Port. 1881 * SL = as from Query HCA Port. 1882 * MTU = from Query HCA Port. 1883 * Rate = 2 (arbitrary). 1884 * PacketLifeTime = 0 (4.096 usec). 1885 */ 1886 static ibt_status_t 1887 ibcm_fillin_loopbackinfo(ibtl_cm_port_list_t *sl, uint8_t index, 1888 ibcm_dinfo_t *dinfo, ibt_path_info_t *paths) 1889 { 1890 ibt_status_t retval; 1891 ib_pkey_t pkey = 0; 1892 1893 IBTF_DPRINTF_L3(cmlog, "ibcm_fillin_loopbackinfo(%p, %p)", sl, dinfo); 1894 1895 /* Synthesize path record with appropriate loop back information. */ 1896 if (dinfo->p_key) 1897 pkey = dinfo->p_key; 1898 else 1899 pkey = dinfo->dest[index].d_pkey; 1900 if (pkey) { 1901 /* Convert P_Key to P_Key_Index */ 1902 retval = ibt_pkey2index_byguid(sl->p_hca_guid, sl->p_port_num, 1903 pkey, &paths->pi_prim_cep_path.cep_pkey_ix); 1904 if (retval != IBT_SUCCESS) { 1905 /* Failed to get pkey_index from pkey */ 1906 IBTF_DPRINTF_L2(cmlog, "ibcm_fillin_loopbackinfo: " 1907 "Pkey2Index (P_Key = %X) conversion failed: %d", 1908 pkey, retval); 1909 return (retval); 1910 } 1911 } else { 1912 paths->pi_prim_cep_path.cep_pkey_ix = 1913 ibtl_cm_get_1st_full_pkey_ix(sl->p_hca_guid, 1914 sl->p_port_num); 1915 IBTF_DPRINTF_L3(cmlog, "ibcm_fillin_loopbackinfo: " 1916 "1st Full Member P_Key_ix = %d", 1917 paths->pi_prim_cep_path.cep_pkey_ix); 1918 } 1919 1920 paths->pi_hca_guid = sl->p_hca_guid; 1921 paths->pi_prim_cep_path.cep_adds_vect.av_dgid = 1922 dinfo->dest[index].d_gid; 1923 paths->pi_prim_cep_path.cep_adds_vect.av_sgid = sl->p_sgid; 1924 paths->pi_prim_cep_path.cep_adds_vect.av_srate = IBT_SRATE_1X; 1925 paths->pi_prim_cep_path.cep_adds_vect.av_srvl = 0; /* SL */ 1926 1927 paths->pi_prim_cep_path.cep_adds_vect.av_send_grh = B_FALSE; 1928 paths->pi_prim_cep_path.cep_adds_vect.av_flow = 0; 1929 paths->pi_prim_cep_path.cep_adds_vect.av_tclass = 0; 1930 paths->pi_prim_cep_path.cep_adds_vect.av_hop = 0; 1931 1932 /* SLID and DLID will be equal to BLID. */ 1933 paths->pi_prim_cep_path.cep_adds_vect.av_dlid = sl->p_base_lid; 1934 paths->pi_prim_cep_path.cep_adds_vect.av_src_path = 0; 1935 paths->pi_prim_cep_path.cep_adds_vect.av_sgid_ix = sl->p_sgid_ix; 1936 paths->pi_prim_cep_path.cep_adds_vect.av_port_num = sl->p_port_num; 1937 paths->pi_prim_cep_path.cep_hca_port_num = sl->p_port_num; 1938 paths->pi_prim_cep_path.cep_timeout = 0; /* To be filled in by CM. */ 1939 paths->pi_path_mtu = sl->p_mtu; /* MTU */ 1940 paths->pi_prim_pkt_lt = 0; /* Packet Life Time. */ 1941 paths->pi_alt_pkt_lt = 0; /* Packet Life Time. */ 1942 1943 paths->pi_sid = dinfo->dest[index].d_sid; 1944 1945 if (paths->pi_sid != 0) 1946 bcopy(&dinfo->dest[index].d_sdata, &paths->pi_sdata, 1947 sizeof (ibt_srv_data_t)); 1948 1949 IBTF_DPRINTF_L3(cmlog, "ibcm_fillin_loopbackinfo: HCA %llX:%d SID %llX" 1950 "\n\t SGID %llX:%llX DGID %llX:%llX", paths->pi_hca_guid, 1951 paths->pi_prim_cep_path.cep_hca_port_num, paths->pi_sid, 1952 sl->p_sgid.gid_prefix, sl->p_sgid.gid_guid, 1953 dinfo->dest[index].d_gid.gid_prefix, 1954 dinfo->dest[index].d_gid.gid_guid); 1955 1956 /* Set Alternate Path to invalid state. */ 1957 paths->pi_alt_cep_path.cep_hca_port_num = 0; 1958 paths->pi_alt_cep_path.cep_adds_vect.av_dlid = 0; 1959 1960 return (IBT_SUCCESS); 1961 } 1962 1963 1964 /* 1965 * Update the output path records buffer with the values as obtained from 1966 * SA Access retrieve call results for Path Records. 1967 */ 1968 static ibt_status_t 1969 ibcm_update_cep_info(sa_path_record_t *prec_resp, ibtl_cm_port_list_t *sl, 1970 ibtl_cm_hca_port_t *hport, ibt_cep_path_t *cep_p) 1971 { 1972 ibt_status_t retval; 1973 int i; 1974 1975 IBCM_DUMP_PATH_REC(prec_resp); 1976 1977 /* 1978 * If path's packet life time is more than 4 seconds, IBCM cannot 1979 * handle this path connection, so discard this path record. 1980 */ 1981 if (prec_resp->PacketLifeTime > ibcm_max_ib_pkt_lt) { 1982 IBTF_DPRINTF_L2(cmlog, "ibcm_update_cep_info: Path's Packet " 1983 "LifeTime too high %d, Maximum allowed %d IB Time (4 sec)", 1984 prec_resp->PacketLifeTime, ibcm_max_ib_pkt_lt); 1985 return (ibt_get_module_failure(IBT_FAILURE_IBSM, 0)); 1986 } 1987 1988 if ((prec_resp->Mtu > IB_MTU_4K) || (prec_resp->Mtu < IB_MTU_256)) { 1989 IBTF_DPRINTF_L2(cmlog, "ibcm_update_cep_info: MTU (%d) from " 1990 "pathrecord is invalid, reject it.", prec_resp->Mtu); 1991 return (ibt_get_module_failure(IBT_FAILURE_IBSM, 0)); 1992 } 1993 1994 /* Source Node Information. */ 1995 cep_p->cep_adds_vect.av_sgid = prec_resp->SGID; 1996 if (hport != NULL) { 1997 /* Convert P_Key to P_Key_Index */ 1998 retval = ibt_pkey2index_byguid(hport->hp_hca_guid, 1999 hport->hp_port, prec_resp->P_Key, &cep_p->cep_pkey_ix); 2000 if (retval != IBT_SUCCESS) { 2001 /* Failed to get pkey_index from pkey */ 2002 IBTF_DPRINTF_L2(cmlog, "ibcm_update_cep_info: " 2003 "Pkey2Index conversion failed: %d", retval); 2004 return (ibt_get_module_failure(IBT_FAILURE_IBSM, 0)); 2005 } 2006 cep_p->cep_adds_vect.av_sgid_ix = hport->hp_sgid_ix; 2007 cep_p->cep_adds_vect.av_src_path = 2008 prec_resp->SLID - hport->hp_base_lid; 2009 cep_p->cep_adds_vect.av_port_num = cep_p->cep_hca_port_num = 2010 hport->hp_port; 2011 } else if (sl != NULL) { 2012 for (i = 0; i < sl->p_count; i++) { 2013 if (prec_resp->SGID.gid_guid == sl[i].p_sgid.gid_guid) { 2014 /* Convert P_Key to P_Key_Index */ 2015 retval = ibt_pkey2index_byguid(sl[i].p_hca_guid, 2016 sl[i].p_port_num, prec_resp->P_Key, 2017 &cep_p->cep_pkey_ix); 2018 if (retval != IBT_SUCCESS) { 2019 /* Failed to get pkey_index from pkey */ 2020 IBTF_DPRINTF_L2(cmlog, 2021 "ibcm_update_cep_info: Pkey2Index " 2022 "conversion failed: %d", retval); 2023 return (ibt_get_module_failure( 2024 IBT_FAILURE_IBSM, 0)); 2025 } 2026 2027 cep_p->cep_adds_vect.av_sgid_ix = 2028 sl[i].p_sgid_ix; 2029 cep_p->cep_adds_vect.av_src_path = 2030 prec_resp->SLID - sl[i].p_base_lid; 2031 cep_p->cep_adds_vect.av_port_num = 2032 sl[i].p_port_num; 2033 cep_p->cep_hca_port_num = sl[i].p_port_num; 2034 2035 break; 2036 } 2037 } 2038 } else { 2039 IBTF_DPRINTF_L2(cmlog, "ibcm_update_cep_info: Sl or Hport " 2040 "must be non-null"); 2041 return (IBT_INVALID_PARAM); 2042 } 2043 2044 if (prec_resp->Rate) { 2045 cep_p->cep_adds_vect.av_srate = prec_resp->Rate; 2046 } else { 2047 IBTF_DPRINTF_L2(cmlog, "ibcm_update_cep_info: SRate (%d) from " 2048 "pathrecord is invalid, reject it.", prec_resp->Rate); 2049 return (ibt_get_module_failure(IBT_FAILURE_IBSM, 0)); 2050 } 2051 /* 2052 * If both Source and Destination GID prefix are same, then GRH is not 2053 * valid, so make it as false, else set this field as true. 2054 */ 2055 if (prec_resp->SGID.gid_prefix == prec_resp->DGID.gid_prefix) 2056 cep_p->cep_adds_vect.av_send_grh = B_FALSE; 2057 else 2058 cep_p->cep_adds_vect.av_send_grh = B_TRUE; 2059 2060 /* SGID and SGID Index. */ 2061 cep_p->cep_adds_vect.av_sgid = prec_resp->SGID; 2062 cep_p->cep_adds_vect.av_flow = prec_resp->FlowLabel; 2063 cep_p->cep_adds_vect.av_tclass = prec_resp->TClass; 2064 cep_p->cep_adds_vect.av_hop = prec_resp->HopLimit; 2065 2066 /* Address Vector Definition. */ 2067 cep_p->cep_adds_vect.av_dlid = prec_resp->DLID; 2068 cep_p->cep_adds_vect.av_srvl = prec_resp->SL; 2069 2070 /* DGID */ 2071 cep_p->cep_adds_vect.av_dgid = prec_resp->DGID; 2072 2073 /* CEP Timeout is NOT filled in by PATH routines. */ 2074 cep_p->cep_timeout = 0; 2075 2076 IBTF_DPRINTF_L3(cmlog, "ibcm_update_cep_info: Done. Port[%d]\n" 2077 "SGID=%llX:%llX DGID=%llX:%llX", 2078 cep_p->cep_adds_vect.av_port_num, 2079 prec_resp->SGID.gid_prefix, prec_resp->SGID.gid_guid, 2080 prec_resp->DGID.gid_prefix, prec_resp->DGID.gid_guid); 2081 2082 return (IBT_SUCCESS); 2083 } 2084 2085 2086 static void 2087 ibcm_fill_svcinfo(sa_service_record_t *sr_resp, ibcm_dest_t *dest) 2088 { 2089 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*dest)) 2090 2091 dest->d_gid = sr_resp->ServiceGID; 2092 dest->d_sid = sr_resp->ServiceID; 2093 ibcm_swizzle_to_srv(sr_resp->ServiceData, &dest->d_sdata); 2094 dest->d_pkey = sr_resp->ServiceP_Key; 2095 2096 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*dest)) 2097 2098 IBTF_DPRINTF_L3(cmlog, "ibcm_fill_svcinfo: SID(%llX), GID(%llX:%llX)" 2099 "\n\tSvcPKey 0x%X", dest->d_sid, dest->d_gid.gid_prefix, 2100 dest->d_gid.gid_guid, dest->d_pkey); 2101 } 2102 2103 2104 static ib_gid_t 2105 ibcm_saa_get_agid(ibtl_cm_port_list_t *sl, ib_gid_t *gidp, uint_t ngid) 2106 { 2107 int k, l; 2108 ib_gid_t a_gid; 2109 2110 a_gid.gid_prefix = a_gid.gid_guid = 0; 2111 2112 for (k = 0; k < sl->p_count; k++) { 2113 for (l = 0; l < ngid; l++) { 2114 2115 if (gidp->gid_prefix == sl->p_sgid.gid_prefix) { 2116 a_gid = *gidp; 2117 break; 2118 } 2119 if (a_gid.gid_guid && a_gid.gid_prefix) 2120 break; 2121 gidp++; 2122 } 2123 if (a_gid.gid_guid && a_gid.gid_prefix) 2124 break; 2125 sl++; 2126 } 2127 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_get_agid: AltGID = %llX:%llX", 2128 a_gid.gid_prefix, a_gid.gid_guid); 2129 2130 return (a_gid); 2131 } 2132 2133 /* 2134 * Perform SA Access to retrieve Service Records. 2135 * On Success, returns ServiceID and ServiceGID info in '*dinfo'. 2136 */ 2137 static ibt_status_t 2138 ibcm_saa_service_rec(ibcm_path_tqargs_t *p_arg, ibtl_cm_port_list_t *sl, 2139 ibcm_dinfo_t *dinfo) 2140 { 2141 sa_service_record_t svcrec_req; 2142 sa_service_record_t *svcrec_resp; 2143 void *results_p; 2144 uint64_t component_mask = 0; 2145 size_t length; 2146 uint8_t i, j, k, rec_found, s; 2147 ibmf_saa_access_args_t access_args; 2148 ibt_status_t retval; 2149 ibt_path_attr_t *attrp = &p_arg->attr; 2150 uint64_t tmp_sd_flag = attrp->pa_sd_flags; 2151 uint8_t num_req; 2152 2153 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec(%p, %p)", p_arg, sl); 2154 2155 bzero(&svcrec_req, sizeof (svcrec_req)); 2156 2157 /* Service Name */ 2158 if ((attrp->pa_sname != NULL) && (strlen(attrp->pa_sname) != 0)) { 2159 (void) strncpy((char *)(svcrec_req.ServiceName), 2160 attrp->pa_sname, IB_SVC_NAME_LEN); 2161 2162 component_mask |= SA_SR_COMPMASK_NAME; 2163 } 2164 2165 /* Service ID */ 2166 if (attrp->pa_sid) { 2167 svcrec_req.ServiceID = attrp->pa_sid; 2168 component_mask |= SA_SR_COMPMASK_ID; 2169 } 2170 2171 /* Is P_Key Specified. */ 2172 if (p_arg->flags & IBT_PATH_PKEY) { 2173 svcrec_req.ServiceP_Key = attrp->pa_pkey; 2174 component_mask |= SA_SR_COMPMASK_PKEY; 2175 } 2176 2177 /* Is ServiceData Specified. */ 2178 if (attrp->pa_sd_flags != IBT_NO_SDATA) { 2179 /* Handle endianess for service data. */ 2180 ibcm_swizzle_from_srv(&attrp->pa_sdata, svcrec_req.ServiceData); 2181 2182 /* 2183 * Lets not interpret each and every ServiceData flags, 2184 * just pass it on to SAA. Shift the flag, to suit 2185 * SA_SR_COMPMASK_ALL_DATA definition. 2186 */ 2187 component_mask |= (tmp_sd_flag << 7); 2188 } 2189 2190 if (dinfo->num_dest == 1) { 2191 2192 /* If a single DGID is specified, provide it */ 2193 svcrec_req.ServiceGID = dinfo->dest->d_gid; 2194 component_mask |= SA_SR_COMPMASK_GID; 2195 2196 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec:%llX:%llX", 2197 svcrec_req.ServiceGID.gid_prefix, 2198 svcrec_req.ServiceGID.gid_guid); 2199 } 2200 2201 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: " 2202 "Perform SA Access: Mask: 0x%X", component_mask); 2203 2204 /* 2205 * Call in SA Access retrieve routine to get Service Records. 2206 * 2207 * SA Access framework allocated memory for the "results_p". 2208 * Make sure to deallocate once we are done with the results_p. 2209 * The size of the buffer allocated will be as returned in 2210 * "length" field. 2211 */ 2212 access_args.sq_attr_id = SA_SERVICERECORD_ATTRID; 2213 access_args.sq_access_type = IBMF_SAA_RETRIEVE; 2214 access_args.sq_component_mask = component_mask; 2215 access_args.sq_template = &svcrec_req; 2216 access_args.sq_template_length = sizeof (sa_service_record_t); 2217 access_args.sq_callback = NULL; 2218 access_args.sq_callback_arg = NULL; 2219 2220 for (s = 0; s < sl->p_count; s++) { 2221 retval = ibcm_contact_sa_access(sl[s].p_saa_hdl, &access_args, 2222 &length, &results_p); 2223 if (retval != IBT_SUCCESS) 2224 if (sl[s].p_multi & IBTL_CM_MULTI_SM) 2225 continue; 2226 else 2227 return (retval); 2228 2229 if ((results_p == NULL) || (length == 0)) { 2230 IBTF_DPRINTF_L2(cmlog, "ibcm_saa_service_rec: SvcRec " 2231 "Not Found: res_p %p, len %d", results_p, length); 2232 if (sl[s].p_multi & IBTL_CM_MULTI_SM) { 2233 retval = IBT_SERVICE_RECORDS_NOT_FOUND; 2234 continue; 2235 } else 2236 return (IBT_SERVICE_RECORDS_NOT_FOUND); 2237 } 2238 2239 /* if we are here, we got some records. so break. */ 2240 break; 2241 } 2242 2243 if (retval != IBT_SUCCESS) 2244 return (retval); 2245 2246 num_req = length / sizeof (sa_service_record_t); 2247 2248 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: Got %d Service Records.", 2249 num_req); 2250 2251 svcrec_resp = (sa_service_record_t *)results_p; 2252 rec_found = 0; 2253 2254 /* Update the return values. */ 2255 if (dinfo->num_dest) { 2256 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: Get ServiceRec " 2257 "for Specified DGID: %d", dinfo->num_dest); 2258 2259 for (i = 0; i < num_req; i++, svcrec_resp++) { 2260 /* Limited P_Key is NOT supported as of now!. */ 2261 if ((svcrec_resp->ServiceP_Key & 0x8000) == 0) { 2262 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: " 2263 "SvcPkey 0x%X limited, reject the record.", 2264 svcrec_resp->ServiceP_Key); 2265 continue; 2266 } 2267 2268 for (j = 0; j < dinfo->num_dest; j++) { 2269 if (dinfo->dest[j].d_gid.gid_guid == 2270 svcrec_resp->ServiceGID.gid_guid) { 2271 ibcm_fill_svcinfo(svcrec_resp, 2272 &dinfo->dest[j]); 2273 rec_found++; 2274 } 2275 if (rec_found == dinfo->num_dest) 2276 break; 2277 } 2278 if (rec_found == dinfo->num_dest) 2279 break; 2280 } 2281 if (rec_found != dinfo->num_dest) { 2282 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: Did NOT " 2283 "find ServiceRec for all DGIDs: (%d/%d)", rec_found, 2284 dinfo->num_dest); 2285 retval = IBT_INSUFF_DATA; 2286 } 2287 } else if (p_arg->flags & IBT_PATH_APM) { 2288 ib_gid_t p_gid, a_gid, last_p_gid; 2289 ib_gid_t *gidp = NULL; 2290 uint_t n_gids; 2291 sa_service_record_t *stmp; 2292 boolean_t pri_fill_done = B_FALSE; 2293 boolean_t alt_fill_done = B_FALSE; 2294 ib_pkey_t p_pkey = 0, a_pkey = 0; 2295 2296 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: Need to " 2297 "find ServiceRec that can satisfy APM"); 2298 2299 p_gid.gid_prefix = p_gid.gid_guid = 0; 2300 a_gid.gid_prefix = a_gid.gid_guid = 0; 2301 last_p_gid.gid_prefix = last_p_gid.gid_guid = 0; 2302 2303 for (i = 0; i < num_req; i++, svcrec_resp++) { 2304 ibt_status_t ret; 2305 boolean_t is_this_on_local_node = B_FALSE; 2306 2307 /* Limited P_Key is NOT supported as of now!. */ 2308 if ((svcrec_resp->ServiceP_Key & 0x8000) == 0) { 2309 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: " 2310 "SvcPkey 0x%X limited, reject the record.", 2311 svcrec_resp->ServiceP_Key); 2312 continue; 2313 } 2314 2315 p_gid = svcrec_resp->ServiceGID; 2316 2317 /* Let's avoid LoopBack Nodes. */ 2318 for (j = 0; j < sl->p_count; j++) { 2319 if (p_gid.gid_guid == sl[j].p_sgid.gid_guid) { 2320 is_this_on_local_node = B_TRUE; 2321 2322 IBTF_DPRINTF_L3(cmlog, 2323 "ibcm_saa_service_rec: ServiceGID " 2324 "%llX:%llX is on Local Node, " 2325 "search for remote.", 2326 p_gid.gid_prefix, p_gid.gid_guid); 2327 } 2328 } 2329 2330 if (is_this_on_local_node == B_TRUE) { 2331 if ((i + 1) < num_req) { 2332 p_gid.gid_prefix = 0; 2333 p_gid.gid_guid = 0; 2334 continue; 2335 } else if (last_p_gid.gid_prefix != 0) { 2336 p_gid = last_p_gid; 2337 break; 2338 } 2339 } 2340 2341 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: " 2342 "Finally let Primary DGID = %llX:%llX", 2343 p_gid.gid_prefix, p_gid.gid_guid); 2344 2345 ret = ibt_get_companion_port_gids(p_gid, 0, 0, 2346 &gidp, &n_gids); 2347 if (ret == IBT_SUCCESS) { 2348 IBTF_DPRINTF_L3(cmlog, 2349 "ibcm_saa_service_rec: Found %d " 2350 "CompGID for %llX:%llX", n_gids, 2351 p_gid.gid_prefix, p_gid.gid_guid); 2352 2353 stmp = (sa_service_record_t *)results_p; 2354 a_gid.gid_prefix = a_gid.gid_guid = 0; 2355 2356 if (sl->p_multi & IBTL_CM_MULTI_SM) { 2357 /* validate sn_pfx */ 2358 a_gid = ibcm_saa_get_agid(sl, 2359 gidp, n_gids); 2360 } else { 2361 for (k = 0; k < num_req; k++) { 2362 ib_gid_t sg = stmp->ServiceGID; 2363 2364 IBTF_DPRINTF_L3(cmlog, 2365 "ibcm_saa_service_rec: " 2366 "SvcGID[%d] = %llX:%llX", k, 2367 sg.gid_prefix, sg.gid_guid); 2368 2369 for (j = 0; j < n_gids; j++) { 2370 if (gidp[j].gid_guid == 2371 sg.gid_guid) { 2372 a_gid = gidp[j]; 2373 break; 2374 } 2375 } 2376 if (a_gid.gid_guid) 2377 break; 2378 stmp++; 2379 } 2380 if (a_gid.gid_guid == 0) { 2381 /* Rec not found for Alt. */ 2382 for (j = 0; j < n_gids; j++) { 2383 if (gidp[j].gid_prefix 2384 == p_gid. 2385 gid_prefix) { 2386 a_gid = gidp[j]; 2387 break; 2388 } 2389 } 2390 } 2391 } 2392 kmem_free(gidp, 2393 n_gids * sizeof (ib_gid_t)); 2394 2395 if (a_gid.gid_guid) 2396 break; 2397 } else if (ret == IBT_GIDS_NOT_FOUND) { 2398 last_p_gid = p_gid; 2399 IBTF_DPRINTF_L3(cmlog, 2400 "ibcm_saa_service_rec: Didn't find " 2401 "CompGID for %llX:%llX, ret=%d", 2402 p_gid.gid_prefix, p_gid.gid_guid, 2403 ret); 2404 } else { 2405 IBTF_DPRINTF_L3(cmlog, 2406 "ibcm_saa_service_rec: Call to " 2407 "ibt_get_companion_port_gids(%llX:" 2408 "%llX) Failed = %d", 2409 p_gid.gid_prefix, p_gid.gid_guid, 2410 ret); 2411 } 2412 } 2413 2414 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: \n\t" 2415 "Pri DGID(%llX:%llX), Alt DGID(%llX:%llX)", 2416 p_gid.gid_prefix, p_gid.gid_guid, a_gid.gid_prefix, 2417 a_gid.gid_guid); 2418 2419 svcrec_resp = (sa_service_record_t *)results_p; 2420 2421 for (i = 0, j = 0; i < num_req; i++, svcrec_resp++) { 2422 /* Limited P_Key is NOT supported as of now!. */ 2423 if ((svcrec_resp->ServiceP_Key & 0x8000) == 0) { 2424 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: " 2425 "SvcPkey 0x%X limited, reject the record.", 2426 svcrec_resp->ServiceP_Key); 2427 continue; 2428 } 2429 2430 if ((pri_fill_done == B_FALSE) && 2431 (p_gid.gid_guid == 2432 svcrec_resp->ServiceGID.gid_guid)) { 2433 p_pkey = svcrec_resp->ServiceP_Key; 2434 if ((a_pkey != 0) && 2435 (a_pkey != p_pkey)) { 2436 IBTF_DPRINTF_L3(cmlog, 2437 "ibcm_saa_service_rec: " 2438 "Pri(0x%X) & Alt (0x%X) " 2439 "PKey must match.", 2440 p_pkey, a_pkey); 2441 p_pkey = 0; 2442 continue; 2443 } 2444 ibcm_fill_svcinfo(svcrec_resp, 2445 &dinfo->dest[j++]); 2446 rec_found++; 2447 pri_fill_done = B_TRUE; 2448 } else if ((alt_fill_done == B_FALSE) && 2449 (a_gid.gid_guid == 2450 svcrec_resp->ServiceGID.gid_guid)) { 2451 a_pkey = svcrec_resp->ServiceP_Key; 2452 if ((p_pkey != 0) && 2453 (a_pkey != p_pkey)) { 2454 IBTF_DPRINTF_L3(cmlog, 2455 "ibcm_saa_service_rec: " 2456 "Pri(0x%X) & Alt (0x%X) " 2457 "PKey must match.", 2458 p_pkey, a_pkey); 2459 a_pkey = 0; 2460 continue; 2461 } 2462 ibcm_fill_svcinfo(svcrec_resp, 2463 &dinfo->dest[j++]); 2464 rec_found++; 2465 alt_fill_done = B_TRUE; 2466 } 2467 2468 if (rec_found == 2) 2469 break; 2470 } 2471 if ((alt_fill_done == B_FALSE) && (a_gid.gid_guid)) { 2472 dinfo->dest[j].d_gid = a_gid; 2473 dinfo->dest[j].d_pkey = p_pkey; 2474 rec_found++; 2475 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: " 2476 "Let Alt Pkey=%X, DGID=%llX:%llX", p_pkey, 2477 a_gid.gid_prefix, a_gid.gid_guid); 2478 } 2479 2480 if (rec_found == 1) 2481 retval = IBT_INSUFF_DATA; 2482 } else if (p_arg->flags & IBT_PATH_MULTI_SVC_DEST) { 2483 for (i = 0; i < num_req; i++, svcrec_resp++) { 2484 ib_gid_t p_gid; 2485 boolean_t is_this_on_local_node = B_FALSE; 2486 2487 /* Limited P_Key is NOT supported as of now!. */ 2488 if ((svcrec_resp->ServiceP_Key & 0x8000) == 0) { 2489 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: " 2490 "SvcPkey 0x%X limited, reject the record.", 2491 svcrec_resp->ServiceP_Key); 2492 continue; 2493 } 2494 2495 p_gid = svcrec_resp->ServiceGID; 2496 2497 /* Let's avoid LoopBack Nodes. */ 2498 for (j = 0; j < sl->p_count; j++) { 2499 if (p_gid.gid_guid == sl[j].p_sgid.gid_guid) { 2500 is_this_on_local_node = B_TRUE; 2501 IBTF_DPRINTF_L3(cmlog, 2502 "ibcm_saa_service_rec: ServiceGID " 2503 "%llX:%llX is on Local Node, " 2504 "search for remote.", 2505 p_gid.gid_prefix, p_gid.gid_guid); 2506 } 2507 } 2508 2509 if (is_this_on_local_node == B_TRUE) 2510 if ((i + 1) < num_req) 2511 continue; 2512 2513 IBTF_DPRINTF_L4(cmlog, "ibcm_saa_service_rec: " 2514 "Found ServiceGID = %llX:%llX", 2515 p_gid.gid_prefix, p_gid.gid_guid); 2516 2517 ibcm_fill_svcinfo(svcrec_resp, 2518 &dinfo->dest[rec_found]); 2519 rec_found++; 2520 if (rec_found == p_arg->max_paths) 2521 break; 2522 } 2523 2524 if (rec_found < p_arg->max_paths) 2525 retval = IBT_INSUFF_DATA; 2526 } else { 2527 for (i = 0; i < num_req; i++) { 2528 /* Limited P_Key is NOT supported as of now!. */ 2529 if ((svcrec_resp->ServiceP_Key & 0x8000) == 0) { 2530 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: " 2531 "SvcPkey 0x%X limited, reject the record.", 2532 svcrec_resp->ServiceP_Key); 2533 svcrec_resp++; 2534 continue; 2535 } 2536 2537 ibcm_fill_svcinfo(svcrec_resp, &dinfo->dest[0]); 2538 rec_found = 1; 2539 2540 /* Avoid having loopback node */ 2541 if (svcrec_resp->ServiceGID.gid_guid != 2542 sl->p_sgid.gid_guid) { 2543 break; 2544 } else { 2545 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: " 2546 "avoid LoopBack node."); 2547 svcrec_resp++; 2548 } 2549 } 2550 } 2551 2552 /* Deallocate the memory for results_p. */ 2553 kmem_free(results_p, length); 2554 if (dinfo->num_dest == 0) 2555 dinfo->num_dest = rec_found; 2556 2557 /* 2558 * Check out whether all Service Path we looking for are on the same 2559 * P_key. If yes, then set the global p_key field with that value, 2560 * to make it easy during SA Path Query. 2561 */ 2562 if ((dinfo->num_dest) && (dinfo->p_key == 0)) { 2563 ib_pkey_t pk = dinfo->dest[0].d_pkey; 2564 2565 if (dinfo->num_dest == 1) { 2566 dinfo->p_key = pk; 2567 } else { 2568 for (i = 1; i < (dinfo->num_dest - 1); i++) { 2569 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: " 2570 "pk= 0x%X, pk[%d]= 0x%X", pk, i, 2571 dinfo->dest[i].d_pkey); 2572 if (pk != dinfo->dest[i].d_pkey) { 2573 dinfo->p_key = 0; 2574 break; 2575 } else { 2576 dinfo->p_key = pk; 2577 } 2578 } 2579 } 2580 } 2581 2582 if (rec_found == 0) { 2583 IBTF_DPRINTF_L2(cmlog, "ibcm_saa_service_rec: " 2584 "ServiceRec NOT Found"); 2585 retval = IBT_SERVICE_RECORDS_NOT_FOUND; 2586 } 2587 2588 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_service_rec: done. Status %d, " 2589 "PKey 0x%X, Found %d SvcRec", retval, dinfo->p_key, rec_found); 2590 2591 return (retval); 2592 } 2593 2594 2595 static boolean_t 2596 ibcm_compare_paths(sa_path_record_t *pr_resp, ibt_cep_path_t *rc_path, 2597 ibtl_cm_hca_port_t *c_hp) 2598 { 2599 if ((rc_path->cep_hca_port_num == c_hp->hp_port) && 2600 (rc_path->cep_adds_vect.av_src_path == 2601 (pr_resp->SLID - c_hp->hp_base_lid)) && 2602 (rc_path->cep_adds_vect.av_dlid == pr_resp->DLID) && 2603 (rc_path->cep_adds_vect.av_srate == pr_resp->Rate)) { 2604 return (B_TRUE); 2605 } else { 2606 return (B_FALSE); 2607 } 2608 } 2609 2610 /* 2611 * ibcm_get_comp_pgids() routine gets the companion port for 'gid'. 2612 * 2613 * On success: 2614 * If 'n_gid' is specified, then verify whether 'n_gid' is indeed a 2615 * companion portgid of 'gid'. If matches return success or else error. 2616 * 2617 * If 'n_gid' is NOT specified, then return back SUCCESS along with 2618 * obtained Companion PortGids 'gid_p', where 'num' indicated number 2619 * of companion portgids returned in 'gid_p'. 2620 */ 2621 2622 static ibt_status_t 2623 ibcm_get_comp_pgids(ib_gid_t gid, ib_gid_t n_gid, ib_guid_t hca_guid, 2624 ib_gid_t **gid_p, uint_t *num) 2625 { 2626 ibt_status_t ret; 2627 int i; 2628 2629 ret = ibt_get_companion_port_gids(gid, hca_guid, 0, gid_p, num); 2630 if ((ret != IBT_SUCCESS) && (ret != IBT_GIDS_NOT_FOUND)) { 2631 IBTF_DPRINTF_L2(cmlog, "ibcm_get_comp_pgids: " 2632 "ibt_get_companion_port_gids(%llX:%llX) Failed: %d", 2633 gid.gid_prefix, gid.gid_guid, ret); 2634 } else if ((ret == IBT_GIDS_NOT_FOUND) && (n_gid.gid_guid != 0)) { 2635 IBTF_DPRINTF_L2(cmlog, "ibcm_get_comp_pgids: Specified GID " 2636 "(%llX:%llX) is NOT a Companion \n\t to current channel's " 2637 "GID(%llX:%llX)", n_gid.gid_prefix, n_gid.gid_guid, 2638 gid.gid_prefix, gid.gid_guid); 2639 ret = IBT_INVALID_PARAM; 2640 } else if (n_gid.gid_guid != 0) { 2641 /* 2642 * We found some Comp GIDs and n_gid is specified. Validate 2643 * whether the 'n_gid' specified is indeed the companion port 2644 * GID of 'gid'. 2645 */ 2646 for (i = 0; i < *num; i++) { 2647 if ((n_gid.gid_prefix == gid_p[i]->gid_prefix) && 2648 (n_gid.gid_guid == gid_p[i]->gid_guid)) { 2649 IBTF_DPRINTF_L3(cmlog, "ibcm_get_comp_pgids: " 2650 "Matching Found!. Done."); 2651 return (IBT_SUCCESS); 2652 } 2653 } 2654 IBTF_DPRINTF_L2(cmlog, "ibcm_get_comp_pgids: GID (%llX:%llX)\n" 2655 "\t and (%llX:%llX) are NOT Companion Port GIDS", 2656 n_gid.gid_prefix, n_gid.gid_guid, gid.gid_prefix, 2657 gid.gid_guid); 2658 ret = IBT_INVALID_PARAM; 2659 } else { 2660 ret = IBT_SUCCESS; 2661 } 2662 2663 IBTF_DPRINTF_L3(cmlog, "ibcm_get_comp_pgids: done. Status = %d", ret); 2664 return (ret); 2665 } 2666 2667 /* 2668 * Function: 2669 * ibt_get_alt_path 2670 * Input: 2671 * rc_chan An RC channel handle returned in a previous call 2672 * ibt_alloc_rc_channel(9F), specifies the channel to open. 2673 * flags Path flags. 2674 * attrp A pointer to an ibt_alt_path_attr_t(9S) structure that 2675 * specifies required attributes of the selected path(s). 2676 * Output: 2677 * api_p An ibt_alt_path_info_t(9S) struct filled in as output 2678 * parameters. 2679 * Returns: 2680 * IBT_SUCCESS on Success else appropriate error. 2681 * Description: 2682 * Finds the best alternate path to a specified channel (as determined by 2683 * the IBTL) that satisfies the requirements specified in an 2684 * ibt_alt_path_attr_t struct. The specified channel must have been 2685 * previously opened successfully using ibt_open_rc_channel. 2686 * This function also ensures that the service being accessed by the 2687 * channel is available at the selected alternate port. 2688 * 2689 * Note: The apa_dgid must be on the same destination channel adapter, 2690 * if specified. 2691 * This routine can not be called from interrupt context. 2692 */ 2693 ibt_status_t 2694 ibt_get_alt_path(ibt_channel_hdl_t rc_chan, ibt_path_flags_t flags, 2695 ibt_alt_path_attr_t *attrp, ibt_alt_path_info_t *api_p) 2696 { 2697 sa_multipath_record_t *mpr_req; 2698 sa_path_record_t *pr_resp; 2699 ibmf_saa_access_args_t access_args; 2700 ibt_qp_query_attr_t qp_attr; 2701 ibtl_cm_hca_port_t c_hp, n_hp; 2702 ibcm_hca_info_t *hcap; 2703 void *results_p; 2704 uint64_t c_mask = 0; 2705 ib_gid_t *gid_ptr = NULL; 2706 ib_gid_t *sgids_p = NULL, *dgids_p = NULL; 2707 ib_gid_t cur_dgid, cur_sgid; 2708 ib_gid_t new_dgid, new_sgid; 2709 ibmf_saa_handle_t saa_handle; 2710 size_t length; 2711 int i, j, template_len, rec_found; 2712 uint_t snum = 0, dnum = 0, num_rec; 2713 ibt_status_t retval; 2714 ib_mtu_t prim_mtu; 2715 2716 IBTF_DPRINTF_L3(cmlog, "ibt_get_alt_path(%p, %x, %p, %p)", 2717 rc_chan, flags, attrp, api_p); 2718 2719 /* validate channel */ 2720 if (IBCM_INVALID_CHANNEL(rc_chan)) { 2721 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: invalid channel"); 2722 return (IBT_CHAN_HDL_INVALID); 2723 } 2724 2725 if (api_p == NULL) { 2726 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: invalid attribute: " 2727 " AltPathInfo can't be NULL"); 2728 return (IBT_INVALID_PARAM); 2729 } 2730 2731 retval = ibt_query_qp(rc_chan, &qp_attr); 2732 if (retval != IBT_SUCCESS) { 2733 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: ibt_query_qp(%p) " 2734 "failed %d", rc_chan, retval); 2735 return (retval); 2736 } 2737 2738 if (qp_attr.qp_info.qp_trans != IBT_RC_SRV) { 2739 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: " 2740 "Invalid Channel type: Applicable only to RC Channel"); 2741 return (IBT_CHAN_SRV_TYPE_INVALID); 2742 } 2743 2744 cur_dgid = 2745 qp_attr.qp_info.qp_transport.rc.rc_path.cep_adds_vect.av_dgid; 2746 cur_sgid = 2747 qp_attr.qp_info.qp_transport.rc.rc_path.cep_adds_vect.av_sgid; 2748 prim_mtu = qp_attr.qp_info.qp_transport.rc.rc_path_mtu; 2749 2750 /* If optional attributes are specified, validate them. */ 2751 if (attrp) { 2752 new_dgid = attrp->apa_dgid; 2753 new_sgid = attrp->apa_sgid; 2754 } else { 2755 new_dgid.gid_prefix = 0; 2756 new_dgid.gid_guid = 0; 2757 new_sgid.gid_prefix = 0; 2758 new_sgid.gid_guid = 0; 2759 } 2760 2761 if ((new_dgid.gid_prefix != 0) && (new_sgid.gid_prefix != 0) && 2762 (new_dgid.gid_prefix != new_sgid.gid_prefix)) { 2763 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: Specified SGID's " 2764 "SNprefix (%llX) doesn't match with \n specified DGID's " 2765 "SNprefix: %llX", new_sgid.gid_prefix, new_dgid.gid_prefix); 2766 return (IBT_INVALID_PARAM); 2767 } 2768 2769 /* For the specified SGID, get HCA information. */ 2770 retval = ibtl_cm_get_hca_port(cur_sgid, 0, &c_hp); 2771 if (retval != IBT_SUCCESS) { 2772 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: " 2773 "Get HCA Port Failed: %d", retval); 2774 return (retval); 2775 } 2776 2777 hcap = ibcm_find_hca_entry(c_hp.hp_hca_guid); 2778 if (hcap == NULL) { 2779 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: NO HCA found"); 2780 return (IBT_HCA_BUSY_DETACHING); 2781 } 2782 2783 /* Validate whether this HCA support APM */ 2784 if (!(hcap->hca_caps & IBT_HCA_AUTO_PATH_MIG)) { 2785 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: " 2786 "HCA (%llX) - APM NOT SUPPORTED ", c_hp.hp_hca_guid); 2787 retval = IBT_APM_NOT_SUPPORTED; 2788 goto get_alt_path_done; 2789 } 2790 2791 /* Get Companion Port GID of the current Channel's SGID */ 2792 if ((new_sgid.gid_guid == 0) || ((new_sgid.gid_guid != 0) && 2793 (new_sgid.gid_guid != cur_sgid.gid_guid))) { 2794 IBTF_DPRINTF_L3(cmlog, "ibt_get_alt_path: SRC: " 2795 "Get Companion PortGids for - %llX:%llX", 2796 cur_sgid.gid_prefix, cur_sgid.gid_guid); 2797 2798 retval = ibcm_get_comp_pgids(cur_sgid, new_sgid, 2799 c_hp.hp_hca_guid, &sgids_p, &snum); 2800 if (retval != IBT_SUCCESS) 2801 goto get_alt_path_done; 2802 } 2803 2804 /* Get Companion Port GID of the current Channel's DGID */ 2805 if ((new_dgid.gid_guid == 0) || ((new_dgid.gid_guid != 0) && 2806 (new_dgid.gid_guid != cur_dgid.gid_guid))) { 2807 2808 IBTF_DPRINTF_L3(cmlog, "ibt_get_alt_path: DEST: " 2809 "Get Companion PortGids for - %llX:%llX", 2810 cur_dgid.gid_prefix, cur_dgid.gid_guid); 2811 2812 retval = ibcm_get_comp_pgids(cur_dgid, new_dgid, 0, &dgids_p, 2813 &dnum); 2814 if (retval != IBT_SUCCESS) 2815 goto get_alt_path_done; 2816 } 2817 2818 if ((new_dgid.gid_guid == 0) || (new_sgid.gid_guid == 0)) { 2819 if (new_sgid.gid_guid == 0) { 2820 for (i = 0; i < snum; i++) { 2821 if (new_dgid.gid_guid == 0) { 2822 for (j = 0; j < dnum; j++) { 2823 if (sgids_p[i].gid_prefix == 2824 dgids_p[j].gid_prefix) { 2825 new_dgid = dgids_p[j]; 2826 new_sgid = sgids_p[i]; 2827 2828 goto get_alt_proceed; 2829 } 2830 } 2831 /* Current DGID */ 2832 if (sgids_p[i].gid_prefix == 2833 cur_dgid.gid_prefix) { 2834 new_sgid = sgids_p[i]; 2835 goto get_alt_proceed; 2836 } 2837 } else { 2838 if (sgids_p[i].gid_prefix == 2839 new_dgid.gid_prefix) { 2840 new_sgid = sgids_p[i]; 2841 goto get_alt_proceed; 2842 } 2843 } 2844 } 2845 /* Current SGID */ 2846 if (new_dgid.gid_guid == 0) { 2847 for (j = 0; j < dnum; j++) { 2848 if (cur_sgid.gid_prefix == 2849 dgids_p[j].gid_prefix) { 2850 new_dgid = dgids_p[j]; 2851 2852 goto get_alt_proceed; 2853 } 2854 } 2855 } 2856 } else if (new_dgid.gid_guid == 0) { 2857 for (i = 0; i < dnum; i++) { 2858 if (dgids_p[i].gid_prefix == 2859 new_sgid.gid_prefix) { 2860 new_dgid = dgids_p[i]; 2861 goto get_alt_proceed; 2862 } 2863 } 2864 /* Current DGID */ 2865 if (cur_dgid.gid_prefix == new_sgid.gid_prefix) { 2866 goto get_alt_proceed; 2867 } 2868 } 2869 /* 2870 * hmm... No Companion Ports available. 2871 * so we will be using current or specified attributes only. 2872 */ 2873 } 2874 2875 get_alt_proceed: 2876 2877 if (new_sgid.gid_guid != 0) { 2878 retval = ibtl_cm_get_hca_port(new_sgid, 0, &n_hp); 2879 if (retval != IBT_SUCCESS) { 2880 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: " 2881 "Get HCA Port Failed: %d", retval); 2882 goto get_alt_path_done; 2883 } 2884 } 2885 2886 /* Calculate the size for multi-path records template */ 2887 template_len = (2 * sizeof (ib_gid_t)) + sizeof (sa_multipath_record_t); 2888 2889 mpr_req = kmem_zalloc(template_len, KM_SLEEP); 2890 2891 ASSERT(mpr_req != NULL); 2892 2893 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*mpr_req)) 2894 2895 gid_ptr = (ib_gid_t *)(((uchar_t *)mpr_req) + 2896 sizeof (sa_multipath_record_t)); 2897 2898 /* SGID */ 2899 if (new_sgid.gid_guid == 0) 2900 *gid_ptr = cur_sgid; 2901 else 2902 *gid_ptr = new_sgid; 2903 2904 IBTF_DPRINTF_L3(cmlog, "ibt_get_alt_path: Get Path Between " 2905 " SGID : %llX:%llX", gid_ptr->gid_prefix, gid_ptr->gid_guid); 2906 2907 gid_ptr++; 2908 2909 /* DGID */ 2910 if (new_dgid.gid_guid == 0) 2911 *gid_ptr = cur_dgid; 2912 else 2913 *gid_ptr = new_dgid; 2914 2915 IBTF_DPRINTF_L3(cmlog, "ibt_get_alt_path:\t\t DGID : %llX:%llX", 2916 gid_ptr->gid_prefix, gid_ptr->gid_guid); 2917 2918 mpr_req->SGIDCount = 1; 2919 c_mask = SA_MPR_COMPMASK_SGIDCOUNT; 2920 2921 mpr_req->DGIDCount = 1; 2922 c_mask |= SA_MPR_COMPMASK_DGIDCOUNT; 2923 2924 /* Is Flow Label Specified. */ 2925 if (attrp) { 2926 if (attrp->apa_flow) { 2927 mpr_req->FlowLabel = attrp->apa_flow; 2928 c_mask |= SA_MPR_COMPMASK_FLOWLABEL; 2929 } 2930 2931 /* Is HopLimit Specified. */ 2932 if (flags & IBT_PATH_HOP) { 2933 mpr_req->HopLimit = attrp->apa_hop; 2934 c_mask |= SA_MPR_COMPMASK_HOPLIMIT; 2935 } 2936 2937 /* Is TClass Specified. */ 2938 if (attrp->apa_tclass) { 2939 mpr_req->TClass = attrp->apa_tclass; 2940 c_mask |= SA_MPR_COMPMASK_TCLASS; 2941 } 2942 2943 /* Is SL specified. */ 2944 if (attrp->apa_sl) { 2945 mpr_req->SL = attrp->apa_sl; 2946 c_mask |= SA_MPR_COMPMASK_SL; 2947 } 2948 2949 if (flags & IBT_PATH_PERF) { 2950 mpr_req->PacketLifeTimeSelector = IBT_BEST; 2951 mpr_req->RateSelector = IBT_BEST; 2952 2953 c_mask |= SA_MPR_COMPMASK_PKTLTSELECTOR | 2954 SA_MPR_COMPMASK_RATESELECTOR; 2955 } else { 2956 if (attrp->apa_pkt_lt.p_selector == IBT_BEST) { 2957 mpr_req->PacketLifeTimeSelector = IBT_BEST; 2958 c_mask |= SA_MPR_COMPMASK_PKTLTSELECTOR; 2959 } 2960 2961 if (attrp->apa_srate.r_selector == IBT_BEST) { 2962 mpr_req->RateSelector = IBT_BEST; 2963 c_mask |= SA_MPR_COMPMASK_RATESELECTOR; 2964 } 2965 } 2966 2967 /* 2968 * Honor individual selection of these attributes, 2969 * even if IBT_PATH_PERF is set. 2970 */ 2971 /* Check out whether Packet Life Time is specified. */ 2972 if (attrp->apa_pkt_lt.p_pkt_lt) { 2973 mpr_req->PacketLifeTime = 2974 ibt_usec2ib(attrp->apa_pkt_lt.p_pkt_lt); 2975 mpr_req->PacketLifeTimeSelector = 2976 attrp->apa_pkt_lt.p_selector; 2977 2978 c_mask |= SA_MPR_COMPMASK_PKTLT | 2979 SA_MPR_COMPMASK_PKTLTSELECTOR; 2980 } 2981 2982 /* Is SRATE specified. */ 2983 if (attrp->apa_srate.r_srate) { 2984 mpr_req->Rate = attrp->apa_srate.r_srate; 2985 mpr_req->RateSelector = attrp->apa_srate.r_selector; 2986 2987 c_mask |= SA_MPR_COMPMASK_RATE | 2988 SA_MPR_COMPMASK_RATESELECTOR; 2989 } 2990 } 2991 2992 /* Alt PathMTU can be GT or EQU to current channel's Pri PathMTU */ 2993 2994 /* P_Key must be same as that of primary path */ 2995 retval = ibt_index2pkey_byguid(c_hp.hp_hca_guid, c_hp.hp_port, 2996 qp_attr.qp_info.qp_transport.rc.rc_path.cep_pkey_ix, 2997 &mpr_req->P_Key); 2998 if (retval != IBT_SUCCESS) { 2999 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: Idx2Pkey Failed: %d", 3000 retval); 3001 goto get_alt_path_done; 3002 } 3003 c_mask |= SA_MPR_COMPMASK_PKEY; 3004 3005 mpr_req->Reversible = 1; /* We always get REVERSIBLE paths. */ 3006 mpr_req->IndependenceSelector = 1; 3007 c_mask |= SA_MPR_COMPMASK_REVERSIBLE | SA_MPR_COMPMASK_INDEPSEL; 3008 3009 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*mpr_req)) 3010 3011 IBTF_DPRINTF_L3(cmlog, "ibt_get_alt_path: CMask: 0x%llX", c_mask); 3012 3013 /* NOTE: We will **NOT** specify how many records we want. */ 3014 3015 IBTF_DPRINTF_L3(cmlog, "ibt_get_alt_path: Primary: MTU %d, PKey[%d]=" 3016 "0x%X\n\tSGID = %llX:%llX, DGID = %llX:%llX", prim_mtu, 3017 qp_attr.qp_info.qp_transport.rc.rc_path.cep_pkey_ix, mpr_req->P_Key, 3018 cur_sgid.gid_prefix, cur_sgid.gid_guid, cur_dgid.gid_prefix, 3019 cur_dgid.gid_guid); 3020 3021 /* Get SA Access Handle. */ 3022 if (new_sgid.gid_guid != 0) 3023 saa_handle = ibcm_get_saa_handle(hcap, n_hp.hp_port); 3024 else 3025 saa_handle = ibcm_get_saa_handle(hcap, c_hp.hp_port); 3026 if (saa_handle == NULL) { 3027 retval = IBT_HCA_PORT_NOT_ACTIVE; 3028 goto get_alt_path_done; 3029 } 3030 3031 /* Contact SA Access to retrieve Path Records. */ 3032 access_args.sq_attr_id = SA_MULTIPATHRECORD_ATTRID; 3033 access_args.sq_access_type = IBMF_SAA_RETRIEVE; 3034 access_args.sq_component_mask = c_mask; 3035 access_args.sq_template = mpr_req; 3036 access_args.sq_template_length = sizeof (sa_multipath_record_t); 3037 access_args.sq_callback = NULL; 3038 access_args.sq_callback_arg = NULL; 3039 3040 retval = ibcm_contact_sa_access(saa_handle, &access_args, &length, 3041 &results_p); 3042 if (retval != IBT_SUCCESS) { 3043 goto get_alt_path_done; 3044 } 3045 3046 num_rec = length / sizeof (sa_path_record_t); 3047 3048 kmem_free(mpr_req, template_len); 3049 3050 IBTF_DPRINTF_L3(cmlog, "ibt_get_alt_path: Found %d Paths", num_rec); 3051 3052 rec_found = 0; 3053 if ((results_p != NULL) && (num_rec > 0)) { 3054 /* Update the PathInfo with the response Path Records */ 3055 pr_resp = (sa_path_record_t *)results_p; 3056 for (i = 0; i < num_rec; i++, pr_resp++) { 3057 if (prim_mtu > pr_resp->Mtu) { 3058 IBTF_DPRINTF_L2(cmlog, "ibt_get_alt_path: " 3059 "Alt PathMTU(%d) must be GT or EQU to Pri " 3060 "PathMTU(%d). Ignore this rec", 3061 pr_resp->Mtu, prim_mtu); 3062 continue; 3063 } 3064 3065 if ((new_sgid.gid_guid == 0) && 3066 (new_dgid.gid_guid == 0)) { 3067 /* Reject PathRec if it same as Primary Path. */ 3068 if (ibcm_compare_paths(pr_resp, 3069 &qp_attr.qp_info.qp_transport.rc.rc_path, 3070 &c_hp) == B_TRUE) { 3071 IBTF_DPRINTF_L3(cmlog, 3072 "ibt_get_alt_path: PathRec obtained" 3073 " is similar to Prim Path, ignore " 3074 "this record"); 3075 continue; 3076 } 3077 } 3078 3079 if (new_sgid.gid_guid == 0) { 3080 retval = ibcm_update_cep_info(pr_resp, NULL, 3081 &c_hp, &api_p->ap_alt_cep_path); 3082 } else { 3083 retval = ibcm_update_cep_info(pr_resp, NULL, 3084 &n_hp, &api_p->ap_alt_cep_path); 3085 } 3086 if (retval != IBT_SUCCESS) 3087 continue; 3088 3089 /* Update some leftovers */ 3090 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*api_p)) 3091 3092 api_p->ap_alt_pkt_lt = pr_resp->PacketLifeTime; 3093 3094 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*api_p)) 3095 3096 rec_found = 1; 3097 break; 3098 } 3099 kmem_free(results_p, length); 3100 } 3101 3102 if (rec_found == 0) { 3103 IBTF_DPRINTF_L3(cmlog, "ibt_get_alt_path: Alternate Path cannot" 3104 " be established"); 3105 retval = IBT_PATH_RECORDS_NOT_FOUND; 3106 } else 3107 retval = IBT_SUCCESS; 3108 3109 get_alt_path_done: 3110 if ((snum) && (sgids_p)) 3111 kmem_free(sgids_p, snum * sizeof (ib_gid_t)); 3112 3113 if ((dnum) && (dgids_p)) 3114 kmem_free(dgids_p, dnum * sizeof (ib_gid_t)); 3115 3116 ibcm_dec_hca_acc_cnt(hcap); 3117 3118 IBTF_DPRINTF_L3(cmlog, "ibt_get_alt_path: Done (status %d).", retval); 3119 3120 return (retval); 3121 } 3122 3123 3124 3125 /* 3126 * IP Path API 3127 */ 3128 3129 typedef struct ibcm_ip_path_tqargs_s { 3130 ibt_ip_path_attr_t attr; 3131 ibt_path_info_t *paths; 3132 ibt_path_ip_src_t *src_ip_p; 3133 uint8_t *num_paths_p; 3134 ibt_ip_path_handler_t func; 3135 void *arg; 3136 ibt_path_flags_t flags; 3137 ibt_clnt_hdl_t ibt_hdl; 3138 kmutex_t ip_lock; 3139 kcondvar_t ip_cv; 3140 ibt_status_t retval; 3141 uint_t len; 3142 } ibcm_ip_path_tqargs_t; 3143 3144 typedef struct ibcm_ip_dest_s { 3145 ib_gid_t d_gid; 3146 uint_t d_tag; /* 0 = Unicast, 2 = LoopBack */ 3147 ibt_ip_addr_t d_ip; 3148 } ibcm_ip_dest_t; 3149 3150 /* Holds destination information needed to fill in ibt_path_info_t. */ 3151 typedef struct ibcm_ip_dinfo_s { 3152 uint8_t num_dest; 3153 ibcm_ip_dest_t dest[1]; 3154 } ibcm_ip_dinfo_t; 3155 3156 _NOTE(SCHEME_PROTECTS_DATA("Temporary path storage", ibcm_ip_dinfo_s)) 3157 3158 /* Prototype Declarations. */ 3159 static void ibcm_process_get_ip_paths(void *tq_arg); 3160 static ibt_status_t ibcm_get_ip_spr(ibcm_ip_path_tqargs_t *, 3161 ibtl_cm_port_list_t *, ibcm_ip_dinfo_t *, uint8_t *, ibt_path_info_t *); 3162 static ibt_status_t ibcm_get_ip_mpr(ibcm_ip_path_tqargs_t *, 3163 ibtl_cm_port_list_t *, ibcm_ip_dinfo_t *dinfo, 3164 uint8_t *, ibt_path_info_t *); 3165 static ibt_status_t ibcm_fillin_ip_lbpr(ibtl_cm_port_list_t *, uint8_t index, 3166 ibcm_ip_dinfo_t *, ibt_path_info_t *); 3167 3168 /* 3169 * Perform SA Access to retrieve Path Records. 3170 */ 3171 static ibt_status_t 3172 ibcm_saa_ip_pr(ibcm_ip_path_tqargs_t *p_arg, ibtl_cm_port_list_t *sl, 3173 ibcm_ip_dinfo_t *dinfo, uint8_t *max_count) 3174 { 3175 uint8_t num_path = *max_count; 3176 uint8_t num_path_plus; 3177 uint_t extra, idx, rec_found = 0; 3178 ibt_status_t retval = IBT_SUCCESS; 3179 int dgid_present = 0; 3180 uint8_t i, j; 3181 3182 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_ip_pr(%p, %p, %p, 0x%X, %d)", 3183 p_arg, sl, dinfo, p_arg->flags, *max_count); 3184 3185 if ((dinfo->num_dest == 0) || (num_path == 0) || (sl == NULL)) { 3186 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_ip_pr: Invalid Counters"); 3187 return (IBT_INVALID_PARAM); 3188 } 3189 3190 /* 3191 * Of the total needed "X" number of paths to "Y" number of destination 3192 * we need to get X/Y plus X%Y extra paths to each destination, 3193 * We do this so that we can choose the required number of path records 3194 * for the specific destination. 3195 */ 3196 num_path /= dinfo->num_dest; 3197 extra = (*max_count % dinfo->num_dest); 3198 3199 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_ip_pr: numpath %d extra %d dest %d", 3200 num_path, extra, dinfo->num_dest); 3201 3202 /* 3203 * Find out whether we need to get PathRecord that qualifies for a 3204 * LoopBack. 3205 */ 3206 for (idx = 0; idx < dinfo->num_dest; idx++) { 3207 ib_gid_t dgid = dinfo->dest[idx].d_gid; 3208 3209 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_ip_pr: DGID[%d]: %llX:%llX", 3210 idx, dgid.gid_prefix, dgid.gid_guid); 3211 3212 /* 3213 * For loop-back path record, we should NOT contact SA Access. 3214 * But instead we need to "synthesize" a loop back path record. 3215 */ 3216 for (i = 0; i < sl->p_count; i++) { 3217 if ((sl[i].p_sgid.gid_prefix == dgid.gid_prefix) && 3218 (sl[i].p_sgid.gid_guid == dgid.gid_guid)) { 3219 3220 dinfo->dest[idx].d_tag = 2; 3221 3222 /* Yes, it's loop back case. */ 3223 retval = ibcm_fillin_ip_lbpr(&sl[i], idx, 3224 dinfo, &p_arg->paths[rec_found]); 3225 if (retval != IBT_SUCCESS) 3226 break; 3227 3228 /* 3229 * We update only one record for loop-back case. 3230 */ 3231 rec_found++; 3232 if (rec_found == *max_count) 3233 break; 3234 } 3235 } 3236 if (rec_found == *max_count) 3237 break; 3238 } 3239 3240 for (i = 0; i < dinfo->num_dest; i++) 3241 if (dinfo->dest[i].d_tag == 0) 3242 dgid_present++; 3243 3244 num_path_plus = *max_count - rec_found; 3245 3246 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_ip_pr: Recfound: %d, need to find " 3247 "%d, GID present %d", rec_found, num_path_plus, dgid_present); 3248 3249 if ((dgid_present != 0) && (num_path_plus > 0)) { 3250 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_ip_pr: MultiSM=%X, #SRC=%d, " 3251 "Dest=%d", sl->p_multi, sl->p_count, dgid_present); 3252 3253 if ((sl->p_multi != IBTL_CM_SIMPLE_SETUP) || 3254 ((dgid_present == 1) && (sl->p_count == 1))) { 3255 /* 3256 * Use SinglePathRec if we are dealing w/ MultiSM or 3257 * request is for one SGID to one DGID. 3258 */ 3259 retval = ibcm_get_ip_spr(p_arg, sl, dinfo, 3260 &num_path_plus, &p_arg->paths[rec_found]); 3261 } else { 3262 /* MultiPathRec will be used for other queries. */ 3263 retval = ibcm_get_ip_mpr(p_arg, sl, dinfo, 3264 &num_path_plus, &p_arg->paths[rec_found]); 3265 } 3266 3267 if ((retval != IBT_SUCCESS) && (retval != IBT_INSUFF_DATA)) 3268 IBTF_DPRINTF_L2(cmlog, "ibcm_saa_ip_pr: " 3269 "Failed to get PathRec: Status %d", retval); 3270 else 3271 rec_found += num_path_plus; 3272 } 3273 3274 if (rec_found == 0) { 3275 if (retval == IBT_SUCCESS) 3276 retval = IBT_PATH_RECORDS_NOT_FOUND; 3277 } else if (rec_found != *max_count) 3278 retval = IBT_INSUFF_DATA; 3279 else if (rec_found != 0) 3280 retval = IBT_SUCCESS; 3281 3282 if ((p_arg->src_ip_p != NULL) && (rec_found != 0)) { 3283 for (i = 0; i < rec_found; i++) { 3284 for (j = 0; j < sl->p_count; j++) { 3285 if (sl[j].p_sgid.gid_guid == p_arg->paths[i]. 3286 pi_prim_cep_path.cep_adds_vect. 3287 av_sgid.gid_guid) { 3288 bcopy(&sl[j].p_src_ip, 3289 &p_arg->src_ip_p[i].ip_primary, 3290 sizeof (ibt_ip_addr_t)); 3291 } 3292 /* Is Alt Path present */ 3293 if (p_arg->paths[i].pi_alt_cep_path. 3294 cep_hca_port_num) { 3295 if (sl[j].p_sgid.gid_guid == 3296 p_arg->paths[i].pi_alt_cep_path. 3297 cep_adds_vect.av_sgid.gid_guid) { 3298 bcopy(&sl[j].p_src_ip, 3299 &p_arg->src_ip_p[i]. 3300 ip_alternate, 3301 sizeof (ibt_ip_addr_t)); 3302 } 3303 } 3304 } 3305 } 3306 } 3307 IBTF_DPRINTF_L3(cmlog, "ibcm_saa_ip_pr: done. Status = %d, " 3308 "Found %d/%d Paths", retval, rec_found, *max_count); 3309 3310 *max_count = rec_found; /* Update the return count. */ 3311 3312 return (retval); 3313 } 3314 3315 static ibt_status_t 3316 ibcm_ip_update_pri(sa_path_record_t *pr_resp, ibtl_cm_port_list_t *sl, 3317 ibt_path_info_t *paths) 3318 { 3319 ibt_status_t retval = IBT_SUCCESS; 3320 int s; 3321 3322 retval = ibcm_update_cep_info(pr_resp, sl, NULL, 3323 &paths->pi_prim_cep_path); 3324 if (retval != IBT_SUCCESS) 3325 return (retval); 3326 3327 /* Update some leftovers */ 3328 paths->pi_prim_pkt_lt = pr_resp->PacketLifeTime; 3329 paths->pi_path_mtu = pr_resp->Mtu; 3330 3331 for (s = 0; s < sl->p_count; s++) { 3332 if (pr_resp->SGID.gid_guid == sl[s].p_sgid.gid_guid) 3333 paths->pi_hca_guid = sl[s].p_hca_guid; 3334 } 3335 3336 /* Set Alternate Path to invalid state. */ 3337 paths->pi_alt_cep_path.cep_hca_port_num = 0; 3338 paths->pi_alt_cep_path.cep_adds_vect.av_dlid = 0; 3339 3340 IBTF_DPRINTF_L5(cmlog, "ibcm_ip_update_pri: Path HCA GUID 0x%llX", 3341 paths->pi_hca_guid); 3342 3343 return (retval); 3344 } 3345 3346 3347 static ibt_status_t 3348 ibcm_get_ip_spr(ibcm_ip_path_tqargs_t *p_arg, ibtl_cm_port_list_t *sl, 3349 ibcm_ip_dinfo_t *dinfo, uint8_t *num_path, ibt_path_info_t *paths) 3350 { 3351 sa_path_record_t pathrec_req; 3352 sa_path_record_t *pr_resp; 3353 ibmf_saa_access_args_t access_args; 3354 uint64_t c_mask = 0; 3355 void *results_p; 3356 uint8_t num_rec; 3357 size_t length; 3358 ibt_status_t retval; 3359 int i, j, k; 3360 int found, p_fnd; 3361 ibt_ip_path_attr_t *attrp = &p_arg->attr; 3362 ibmf_saa_handle_t saa_handle; 3363 3364 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_spr(%p, %p, %p, %d)", 3365 p_arg, sl, dinfo, *num_path); 3366 3367 bzero(&pathrec_req, sizeof (sa_path_record_t)); 3368 3369 /* Is Flow Label Specified. */ 3370 if (attrp->ipa_flow) { 3371 pathrec_req.FlowLabel = attrp->ipa_flow; 3372 c_mask |= SA_PR_COMPMASK_FLOWLABEL; 3373 } 3374 3375 /* Is HopLimit Specified. */ 3376 if (p_arg->flags & IBT_PATH_HOP) { 3377 pathrec_req.HopLimit = attrp->ipa_hop; 3378 c_mask |= SA_PR_COMPMASK_HOPLIMIT; 3379 } 3380 3381 /* Is TClass Specified. */ 3382 if (attrp->ipa_tclass) { 3383 pathrec_req.TClass = attrp->ipa_tclass; 3384 c_mask |= SA_PR_COMPMASK_TCLASS; 3385 } 3386 3387 /* Is SL specified. */ 3388 if (attrp->ipa_sl) { 3389 pathrec_req.SL = attrp->ipa_sl; 3390 c_mask |= SA_PR_COMPMASK_SL; 3391 } 3392 3393 /* If IBT_PATH_PERF is set, then mark all selectors to BEST. */ 3394 if (p_arg->flags & IBT_PATH_PERF) { 3395 pathrec_req.PacketLifeTimeSelector = IBT_BEST; 3396 pathrec_req.MtuSelector = IBT_BEST; 3397 pathrec_req.RateSelector = IBT_BEST; 3398 3399 c_mask |= SA_PR_COMPMASK_PKTLTSELECTOR | 3400 SA_PR_COMPMASK_RATESELECTOR | SA_PR_COMPMASK_MTUSELECTOR; 3401 } else { 3402 if (attrp->ipa_pkt_lt.p_selector == IBT_BEST) { 3403 pathrec_req.PacketLifeTimeSelector = IBT_BEST; 3404 c_mask |= SA_PR_COMPMASK_PKTLTSELECTOR; 3405 } 3406 3407 if (attrp->ipa_srate.r_selector == IBT_BEST) { 3408 pathrec_req.RateSelector = IBT_BEST; 3409 c_mask |= SA_PR_COMPMASK_RATESELECTOR; 3410 } 3411 3412 if (attrp->ipa_mtu.r_selector == IBT_BEST) { 3413 pathrec_req.MtuSelector = IBT_BEST; 3414 c_mask |= SA_PR_COMPMASK_MTUSELECTOR; 3415 } 3416 } 3417 3418 /* 3419 * Honor individual selection of these attributes, 3420 * even if IBT_PATH_PERF is set. 3421 */ 3422 /* Check out whether Packet Life Time is specified. */ 3423 if (attrp->ipa_pkt_lt.p_pkt_lt) { 3424 pathrec_req.PacketLifeTime = 3425 ibt_usec2ib(attrp->ipa_pkt_lt.p_pkt_lt); 3426 pathrec_req.PacketLifeTimeSelector = 3427 attrp->ipa_pkt_lt.p_selector; 3428 3429 c_mask |= SA_PR_COMPMASK_PKTLT | SA_PR_COMPMASK_PKTLTSELECTOR; 3430 } 3431 3432 /* Is SRATE specified. */ 3433 if (attrp->ipa_srate.r_srate) { 3434 pathrec_req.Rate = attrp->ipa_srate.r_srate; 3435 pathrec_req.RateSelector = attrp->ipa_srate.r_selector; 3436 3437 c_mask |= SA_PR_COMPMASK_RATE | SA_PR_COMPMASK_RATESELECTOR; 3438 } 3439 3440 /* Is MTU specified. */ 3441 if (attrp->ipa_mtu.r_mtu) { 3442 pathrec_req.Mtu = attrp->ipa_mtu.r_mtu; 3443 pathrec_req.MtuSelector = attrp->ipa_mtu.r_selector; 3444 3445 c_mask |= SA_PR_COMPMASK_MTU | SA_PR_COMPMASK_MTUSELECTOR; 3446 } 3447 3448 /* We always get REVERSIBLE paths. */ 3449 pathrec_req.Reversible = 1; 3450 c_mask |= SA_PR_COMPMASK_REVERSIBLE; 3451 3452 pathrec_req.NumbPath = *num_path; 3453 c_mask |= SA_PR_COMPMASK_NUMBPATH; 3454 3455 p_fnd = found = 0; 3456 3457 for (i = 0; i < sl->p_count; i++) { 3458 /* SGID */ 3459 pathrec_req.SGID = sl[i].p_sgid; 3460 c_mask |= SA_PR_COMPMASK_SGID; 3461 saa_handle = sl[i].p_saa_hdl; 3462 3463 for (k = 0; k < dinfo->num_dest; k++) { 3464 if (dinfo->dest[k].d_tag != 0) 3465 continue; 3466 3467 if (pathrec_req.SGID.gid_prefix != 3468 dinfo->dest[k].d_gid.gid_prefix) { 3469 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_spr: " 3470 "SGID_pfx=%llX DGID_pfx=%llX doesn't match", 3471 pathrec_req.SGID.gid_prefix, 3472 dinfo->dest[k].d_gid.gid_prefix); 3473 continue; 3474 } else if (pathrec_req.SGID.gid_guid == 3475 pathrec_req.DGID.gid_guid) { 3476 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_spr: Why " 3477 "LoopBack request came here! GID %llX:%llX", 3478 pathrec_req.SGID.gid_prefix, 3479 pathrec_req.SGID.gid_guid); 3480 continue; 3481 } 3482 3483 pathrec_req.DGID = dinfo->dest[k].d_gid; 3484 c_mask |= SA_PR_COMPMASK_DGID; 3485 3486 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_spr: " 3487 "Get %d Path(s) between\n SGID %llX:%llX " 3488 "DGID %llX:%llX", pathrec_req.NumbPath, 3489 pathrec_req.SGID.gid_prefix, 3490 pathrec_req.SGID.gid_guid, 3491 pathrec_req.DGID.gid_prefix, 3492 pathrec_req.DGID.gid_guid); 3493 3494 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_spr: CMask=0x%llX, " 3495 "PKey=0x%X", c_mask, pathrec_req.P_Key); 3496 3497 /* Contact SA Access to retrieve Path Records. */ 3498 access_args.sq_attr_id = SA_PATHRECORD_ATTRID; 3499 access_args.sq_template = &pathrec_req; 3500 access_args.sq_access_type = IBMF_SAA_RETRIEVE; 3501 access_args.sq_template_length = 3502 sizeof (sa_path_record_t); 3503 access_args.sq_component_mask = c_mask; 3504 access_args.sq_callback = NULL; 3505 access_args.sq_callback_arg = NULL; 3506 3507 retval = ibcm_contact_sa_access(saa_handle, 3508 &access_args, &length, &results_p); 3509 if (retval != IBT_SUCCESS) { 3510 *num_path = 0; 3511 return (retval); 3512 } 3513 3514 num_rec = length / sizeof (sa_path_record_t); 3515 3516 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_spr: " 3517 "FOUND %d/%d path requested", num_rec, *num_path); 3518 3519 if ((results_p == NULL) || (num_rec == 0)) 3520 continue; 3521 3522 /* Update the PathInfo from the response. */ 3523 pr_resp = (sa_path_record_t *)results_p; 3524 for (j = 0; j < num_rec; j++, pr_resp++) { 3525 if ((p_fnd != 0) && 3526 (p_arg->flags & IBT_PATH_APM)) { 3527 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_spr" 3528 ": Fill Alternate Path"); 3529 retval = ibcm_update_cep_info(pr_resp, 3530 sl, NULL, 3531 &paths[found - 1].pi_alt_cep_path); 3532 if (retval != IBT_SUCCESS) 3533 continue; 3534 3535 /* Update some leftovers */ 3536 paths[found - 1].pi_alt_pkt_lt = 3537 pr_resp->PacketLifeTime; 3538 p_fnd = 0; 3539 } else { 3540 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_spr" 3541 ": Fill Primary Path"); 3542 3543 if (found == *num_path) 3544 break; 3545 3546 retval = ibcm_ip_update_pri(pr_resp, sl, 3547 &paths[found]); 3548 if (retval != IBT_SUCCESS) 3549 continue; 3550 p_fnd = 1; 3551 found++; 3552 } 3553 3554 } 3555 /* Deallocate the memory for results_p. */ 3556 kmem_free(results_p, length); 3557 } 3558 } 3559 3560 if (found == 0) 3561 retval = IBT_PATH_RECORDS_NOT_FOUND; 3562 else if (found != *num_path) 3563 retval = IBT_INSUFF_DATA; 3564 else 3565 retval = IBT_SUCCESS; 3566 3567 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_spr: done. Status %d, " 3568 "Found %d/%d Paths", retval, found, *num_path); 3569 3570 *num_path = found; 3571 3572 return (retval); 3573 } 3574 3575 3576 static ibt_status_t 3577 ibcm_get_ip_mpr(ibcm_ip_path_tqargs_t *p_arg, ibtl_cm_port_list_t *sl, 3578 ibcm_ip_dinfo_t *dinfo, uint8_t *num_path, ibt_path_info_t *paths) 3579 { 3580 sa_multipath_record_t *mpr_req; 3581 sa_path_record_t *pr_resp; 3582 ibmf_saa_access_args_t access_args; 3583 void *results_p; 3584 uint64_t c_mask = 0; 3585 ib_gid_t *gid_ptr, *gid_s_ptr; 3586 size_t length; 3587 int template_len, found, num_rec; 3588 int i; 3589 ibt_status_t retval; 3590 uint8_t sgid_cnt, dgid_cnt; 3591 ibt_ip_path_attr_t *attrp = &p_arg->attr; 3592 3593 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr(%p, %p, %p, %d)", 3594 attrp, sl, dinfo, *num_path); 3595 3596 for (i = 0, dgid_cnt = 0; i < dinfo->num_dest; i++) { 3597 if (dinfo->dest[i].d_tag == 0) 3598 dgid_cnt++; 3599 } 3600 3601 sgid_cnt = sl->p_count; 3602 3603 if ((sgid_cnt == 0) || (dgid_cnt == 0)) { 3604 IBTF_DPRINTF_L2(cmlog, "ibcm_get_ip_mpr: sgid_cnt(%d) or" 3605 " dgid_cnt(%d) is zero", sgid_cnt, dgid_cnt); 3606 return (IBT_INVALID_PARAM); 3607 } 3608 3609 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: Get %d records between " 3610 "%d Src(s) <=> %d Dest(s)", *num_path, sgid_cnt, dgid_cnt); 3611 3612 /* 3613 * Calculate the size for multi-path records template, which includes 3614 * constant portion of the multipath record, plus variable size for 3615 * SGID (sgid_cnt) and DGID (dgid_cnt). 3616 */ 3617 template_len = ((dgid_cnt + sgid_cnt) * sizeof (ib_gid_t)) + 3618 sizeof (sa_multipath_record_t); 3619 3620 mpr_req = kmem_zalloc(template_len, KM_SLEEP); 3621 3622 ASSERT(mpr_req != NULL); 3623 3624 gid_ptr = (ib_gid_t *)(((uchar_t *)mpr_req) + 3625 sizeof (sa_multipath_record_t)); 3626 3627 /* Get the starting pointer where GIDs are stored. */ 3628 gid_s_ptr = gid_ptr; 3629 3630 /* SGID */ 3631 for (i = 0; i < sl->p_count; i++) { 3632 *gid_ptr = sl[i].p_sgid; 3633 3634 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: SGID[%d] = %llX:%llX", 3635 i, gid_ptr->gid_prefix, gid_ptr->gid_guid); 3636 3637 gid_ptr++; 3638 } 3639 3640 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*mpr_req)) 3641 3642 mpr_req->SGIDCount = sgid_cnt; 3643 c_mask = SA_MPR_COMPMASK_SGIDCOUNT; 3644 3645 /* DGIDs */ 3646 for (i = 0; i < dinfo->num_dest; i++) { 3647 if (dinfo->dest[i].d_tag == 0) { 3648 *gid_ptr = dinfo->dest[i].d_gid; 3649 3650 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: DGID[%d] = " 3651 "%llX:%llX", i, gid_ptr->gid_prefix, 3652 gid_ptr->gid_guid); 3653 gid_ptr++; 3654 } 3655 } 3656 3657 mpr_req->DGIDCount = dgid_cnt; 3658 c_mask |= SA_MPR_COMPMASK_DGIDCOUNT; 3659 3660 /* Is Flow Label Specified. */ 3661 if (attrp->ipa_flow) { 3662 mpr_req->FlowLabel = attrp->ipa_flow; 3663 c_mask |= SA_MPR_COMPMASK_FLOWLABEL; 3664 } 3665 3666 /* Is HopLimit Specified. */ 3667 if (p_arg->flags & IBT_PATH_HOP) { 3668 mpr_req->HopLimit = attrp->ipa_hop; 3669 c_mask |= SA_MPR_COMPMASK_HOPLIMIT; 3670 } 3671 3672 /* Is TClass Specified. */ 3673 if (attrp->ipa_tclass) { 3674 mpr_req->TClass = attrp->ipa_tclass; 3675 c_mask |= SA_MPR_COMPMASK_TCLASS; 3676 } 3677 3678 /* Is SL specified. */ 3679 if (attrp->ipa_sl) { 3680 mpr_req->SL = attrp->ipa_sl; 3681 c_mask |= SA_MPR_COMPMASK_SL; 3682 } 3683 3684 if (p_arg->flags & IBT_PATH_PERF) { 3685 mpr_req->PacketLifeTimeSelector = IBT_BEST; 3686 mpr_req->RateSelector = IBT_BEST; 3687 mpr_req->MtuSelector = IBT_BEST; 3688 3689 c_mask |= SA_MPR_COMPMASK_PKTLTSELECTOR | 3690 SA_MPR_COMPMASK_RATESELECTOR | SA_MPR_COMPMASK_MTUSELECTOR; 3691 } else { 3692 if (attrp->ipa_pkt_lt.p_selector == IBT_BEST) { 3693 mpr_req->PacketLifeTimeSelector = IBT_BEST; 3694 c_mask |= SA_MPR_COMPMASK_PKTLTSELECTOR; 3695 } 3696 3697 if (attrp->ipa_srate.r_selector == IBT_BEST) { 3698 mpr_req->RateSelector = IBT_BEST; 3699 c_mask |= SA_MPR_COMPMASK_RATESELECTOR; 3700 } 3701 3702 if (attrp->ipa_mtu.r_selector == IBT_BEST) { 3703 mpr_req->MtuSelector = IBT_BEST; 3704 c_mask |= SA_MPR_COMPMASK_MTUSELECTOR; 3705 } 3706 } 3707 3708 /* 3709 * Honor individual selection of these attributes, 3710 * even if IBT_PATH_PERF is set. 3711 */ 3712 /* Check out whether Packet Life Time is specified. */ 3713 if (attrp->ipa_pkt_lt.p_pkt_lt) { 3714 mpr_req->PacketLifeTime = 3715 ibt_usec2ib(attrp->ipa_pkt_lt.p_pkt_lt); 3716 mpr_req->PacketLifeTimeSelector = 3717 attrp->ipa_pkt_lt.p_selector; 3718 3719 c_mask |= SA_MPR_COMPMASK_PKTLT | 3720 SA_MPR_COMPMASK_PKTLTSELECTOR; 3721 } 3722 3723 /* Is SRATE specified. */ 3724 if (attrp->ipa_srate.r_srate) { 3725 mpr_req->Rate = attrp->ipa_srate.r_srate; 3726 mpr_req->RateSelector = attrp->ipa_srate.r_selector; 3727 3728 c_mask |= SA_MPR_COMPMASK_RATE | 3729 SA_MPR_COMPMASK_RATESELECTOR; 3730 } 3731 3732 /* Is MTU specified. */ 3733 if (attrp->ipa_mtu.r_mtu) { 3734 mpr_req->Mtu = attrp->ipa_mtu.r_mtu; 3735 mpr_req->MtuSelector = attrp->ipa_mtu.r_selector; 3736 3737 c_mask |= SA_MPR_COMPMASK_MTU | 3738 SA_MPR_COMPMASK_MTUSELECTOR; 3739 } 3740 3741 /* We always get REVERSIBLE paths. */ 3742 mpr_req->Reversible = 1; 3743 c_mask |= SA_MPR_COMPMASK_REVERSIBLE; 3744 3745 if (p_arg->flags & IBT_PATH_AVAIL) { 3746 mpr_req->IndependenceSelector = 1; 3747 c_mask |= SA_MPR_COMPMASK_INDEPSEL; 3748 } 3749 3750 /* we will not specify how many records we want. */ 3751 3752 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*mpr_req)) 3753 3754 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: CMask: %llX Pkey: %X", 3755 c_mask, mpr_req->P_Key); 3756 3757 /* Contact SA Access to retrieve Path Records. */ 3758 access_args.sq_attr_id = SA_MULTIPATHRECORD_ATTRID; 3759 access_args.sq_access_type = IBMF_SAA_RETRIEVE; 3760 access_args.sq_component_mask = c_mask; 3761 access_args.sq_template = mpr_req; 3762 access_args.sq_template_length = sizeof (sa_multipath_record_t); 3763 access_args.sq_callback = NULL; 3764 access_args.sq_callback_arg = NULL; 3765 3766 retval = ibcm_contact_sa_access(sl->p_saa_hdl, &access_args, &length, 3767 &results_p); 3768 if (retval != IBT_SUCCESS) { 3769 *num_path = 0; /* Update the return count. */ 3770 kmem_free(mpr_req, template_len); 3771 return (retval); 3772 } 3773 3774 num_rec = length / sizeof (sa_path_record_t); 3775 3776 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: Found %d Paths", num_rec); 3777 3778 found = 0; 3779 if ((results_p != NULL) && (num_rec > 0)) { 3780 /* Update the PathInfo with the response Path Records */ 3781 pr_resp = (sa_path_record_t *)results_p; 3782 3783 for (i = 0; i < num_rec; i++) { 3784 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: " 3785 "P[%d]: SG %llX, DG %llX", i, 3786 pr_resp[i].SGID.gid_guid, pr_resp[i].DGID.gid_guid); 3787 } 3788 3789 if (p_arg->flags & IBT_PATH_APM) { 3790 sa_path_record_t *p_resp = NULL, *a_resp = NULL; 3791 int p_found = 0, a_found = 0; 3792 ib_gid_t p_sg, a_sg, p_dg, a_dg; 3793 int s_spec; 3794 3795 s_spec = 3796 p_arg->attr.ipa_src_ip.family != AF_UNSPEC ? 1 : 0; 3797 3798 p_sg = gid_s_ptr[0]; 3799 if (sgid_cnt > 1) 3800 a_sg = gid_s_ptr[1]; 3801 else 3802 a_sg = p_sg; 3803 3804 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: P_SG: %llX, " 3805 "A_SG: %llX", p_sg.gid_guid, a_sg.gid_guid); 3806 3807 p_dg = gid_s_ptr[sgid_cnt]; 3808 if (dgid_cnt > 1) 3809 a_dg = gid_s_ptr[sgid_cnt + 1]; 3810 else 3811 a_dg = p_dg; 3812 3813 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: P_DG: %llX, " 3814 "A_DG: %llX", p_dg.gid_guid, a_dg.gid_guid); 3815 3816 /* 3817 * If SGID and/or DGID is specified by user, make sure 3818 * he gets his primary-path on those node points. 3819 */ 3820 for (i = 0; i < num_rec; i++, pr_resp++) { 3821 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: " 3822 "PF %d, AF %d,\n\t\t P[%d] = SG: %llX, " 3823 "DG: %llX", p_found, a_found, i, 3824 pr_resp->SGID.gid_guid, 3825 pr_resp->DGID.gid_guid); 3826 3827 if ((!p_found) && 3828 (p_dg.gid_guid == pr_resp->DGID.gid_guid)) { 3829 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr" 3830 ": Pri DGID Match.. "); 3831 if ((s_spec == 0) || (p_sg.gid_guid == 3832 pr_resp->SGID.gid_guid)) { 3833 p_found = 1; 3834 p_resp = pr_resp; 3835 IBTF_DPRINTF_L3(cmlog, 3836 "ibcm_get_ip_mpr: " 3837 "Primary Path Found"); 3838 3839 if (a_found) 3840 break; 3841 else 3842 continue; 3843 } 3844 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr" 3845 ": Pri SGID Don't Match.. "); 3846 } 3847 3848 if ((!a_found) && 3849 (a_dg.gid_guid == pr_resp->DGID.gid_guid)) { 3850 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr" 3851 ": Alt DGID Match.. "); 3852 if ((s_spec == 0) || (a_sg.gid_guid == 3853 pr_resp->SGID.gid_guid)) { 3854 a_found = 1; 3855 a_resp = pr_resp; 3856 3857 IBTF_DPRINTF_L3(cmlog, 3858 "ibcm_get_ip_mpr:" 3859 "Alternate Path Found "); 3860 3861 if (p_found) 3862 break; 3863 else 3864 continue; 3865 } 3866 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr" 3867 ": Alt SGID Don't Match.. "); 3868 } 3869 } 3870 3871 if ((p_found == 0) && (a_found == 0)) { 3872 IBTF_DPRINTF_L2(cmlog, "ibcm_get_ip_mpr: Path " 3873 "to desired node points NOT Available."); 3874 retval = IBT_PATH_RECORDS_NOT_FOUND; 3875 goto get_ip_mpr_end; 3876 } 3877 3878 if ((p_resp == NULL) && (a_resp != NULL)) { 3879 p_resp = a_resp; 3880 a_resp = NULL; 3881 } 3882 3883 /* Fill in Primary Path */ 3884 retval = ibcm_ip_update_pri(p_resp, sl, &paths[found]); 3885 if (retval != IBT_SUCCESS) 3886 goto get_ip_mpr_end; 3887 3888 /* Fill in Alternate Path */ 3889 if (a_resp != NULL) { 3890 /* a_resp will point to AltPathInfo buffer. */ 3891 retval = ibcm_update_cep_info(a_resp, sl, 3892 NULL, &paths[found].pi_alt_cep_path); 3893 if (retval != IBT_SUCCESS) 3894 goto get_ip_mpr_end; 3895 3896 /* Update some leftovers */ 3897 paths[found].pi_alt_pkt_lt = 3898 a_resp->PacketLifeTime; 3899 } else { 3900 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: " 3901 "Alternate Path NOT Available."); 3902 retval = IBT_INSUFF_DATA; 3903 } 3904 found++; 3905 } else { /* If NOT APM */ 3906 for (i = 0; i < num_rec; i++, pr_resp++) { 3907 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: " 3908 "DGID(%llX)", pr_resp->DGID.gid_guid); 3909 3910 /* Fill in Primary Path */ 3911 retval = ibcm_ip_update_pri(pr_resp, sl, 3912 &paths[found]); 3913 if (retval != IBT_SUCCESS) 3914 continue; 3915 3916 if (++found == *num_path) 3917 break; 3918 } 3919 } 3920 get_ip_mpr_end: 3921 kmem_free(results_p, length); 3922 } 3923 kmem_free(mpr_req, template_len); 3924 3925 if (found == 0) 3926 retval = IBT_PATH_RECORDS_NOT_FOUND; 3927 else if (found != *num_path) 3928 retval = IBT_INSUFF_DATA; 3929 else 3930 retval = IBT_SUCCESS; 3931 3932 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_mpr: Done (status %d). " 3933 "Found %d/%d Paths", retval, found, *num_path); 3934 3935 *num_path = found; /* Update the return count. */ 3936 3937 return (retval); 3938 } 3939 3940 3941 /* 3942 * Here we "synthesize" loop back path record information. 3943 * 3944 * Currently the synthesize values are assumed as follows: 3945 * SLID, DLID = Base LID from Query HCA Port. 3946 * FlowLabel, HopLimit, TClass = 0, as GRH is False. 3947 * RawTraffic = 0. 3948 * P_Key = first valid one in P_Key table as obtained from Query HCA Port. 3949 * SL = as from Query HCA Port. 3950 * MTU = from Query HCA Port. 3951 * Rate = 2 (arbitrary). 3952 * PacketLifeTime = 0 (4.096 usec). 3953 */ 3954 static ibt_status_t 3955 ibcm_fillin_ip_lbpr(ibtl_cm_port_list_t *sl, uint8_t idx, 3956 ibcm_ip_dinfo_t *dinfo, ibt_path_info_t *paths) 3957 { 3958 IBTF_DPRINTF_L3(cmlog, "ibcm_fillin_ip_lbpr(%p, %p)", sl, dinfo); 3959 3960 /* Synthesize path record with appropriate loop back information. */ 3961 paths->pi_prim_cep_path.cep_pkey_ix = 3962 ibtl_cm_get_1st_full_pkey_ix(sl->p_hca_guid, sl->p_port_num); 3963 paths->pi_hca_guid = sl->p_hca_guid; 3964 paths->pi_prim_cep_path.cep_adds_vect.av_dgid = dinfo->dest[idx].d_gid; 3965 paths->pi_prim_cep_path.cep_adds_vect.av_sgid = sl->p_sgid; 3966 paths->pi_prim_cep_path.cep_adds_vect.av_srate = IBT_SRATE_1X; 3967 paths->pi_prim_cep_path.cep_adds_vect.av_srvl = 0; /* SL */ 3968 3969 paths->pi_prim_cep_path.cep_adds_vect.av_send_grh = B_FALSE; 3970 paths->pi_prim_cep_path.cep_adds_vect.av_flow = 0; 3971 paths->pi_prim_cep_path.cep_adds_vect.av_tclass = 0; 3972 paths->pi_prim_cep_path.cep_adds_vect.av_hop = 0; 3973 3974 /* SLID and DLID will be equal to BLID. */ 3975 paths->pi_prim_cep_path.cep_adds_vect.av_dlid = sl->p_base_lid; 3976 paths->pi_prim_cep_path.cep_adds_vect.av_src_path = 0; 3977 paths->pi_prim_cep_path.cep_adds_vect.av_sgid_ix = sl->p_sgid_ix; 3978 paths->pi_prim_cep_path.cep_adds_vect.av_port_num = sl->p_port_num; 3979 paths->pi_prim_cep_path.cep_hca_port_num = sl->p_port_num; 3980 paths->pi_prim_cep_path.cep_timeout = 0; /* To be filled in by CM. */ 3981 paths->pi_path_mtu = sl->p_mtu; /* MTU */ 3982 paths->pi_prim_pkt_lt = 0; /* Packet Life Time. */ 3983 paths->pi_alt_pkt_lt = 0; /* Packet Life Time. */ 3984 3985 IBTF_DPRINTF_L3(cmlog, "ibcm_fillin_ip_lbpr: HCA %llX:%d \n " 3986 "SGID %llX:%llX DGID %llX:%llX", paths->pi_hca_guid, 3987 paths->pi_prim_cep_path.cep_hca_port_num, sl->p_sgid.gid_prefix, 3988 sl->p_sgid.gid_guid, dinfo->dest[idx].d_gid.gid_prefix, 3989 dinfo->dest[idx].d_gid.gid_guid); 3990 3991 /* Set Alternate Path to invalid state. */ 3992 paths->pi_alt_cep_path.cep_hca_port_num = 0; 3993 paths->pi_alt_cep_path.cep_adds_vect.av_dlid = 0; 3994 3995 return (IBT_SUCCESS); 3996 } 3997 3998 static void 3999 ibcm_process_get_ip_paths(void *tq_arg) 4000 { 4001 ibcm_ip_path_tqargs_t *p_arg = (ibcm_ip_path_tqargs_t *)tq_arg; 4002 ibcm_ip_dinfo_t *dinfo = NULL; 4003 int len = 0; 4004 uint8_t max_paths, num_path; 4005 ib_gid_t *d_gids_p = NULL; 4006 ib_gid_t sgid, dgid1, dgid2; 4007 ibt_status_t retval = IBT_SUCCESS; 4008 ibtl_cm_port_list_t *sl = NULL; 4009 uint_t dnum = 0; 4010 uint_t i; 4011 ibcm_hca_info_t *hcap; 4012 ibmf_saa_handle_t saa_handle; 4013 4014 IBTF_DPRINTF_L3(cmlog, "ibcm_process_get_ip_paths(%p, 0x%X) ", 4015 p_arg, p_arg->flags); 4016 4017 max_paths = num_path = p_arg->attr.ipa_max_paths; 4018 4019 /* 4020 * Prepare the Source and Destination GID list based on the input 4021 * attributes. We contact ARP module to perform IP to MAC 4022 * i.e. GID conversion. We use this GID for path look-up. 4023 * 4024 * If APM is requested and if multiple Dest IPs are specified, check 4025 * out whether they are companion to each other. But, if only one 4026 * Dest IP is specified, then it is beyond our scope to verify that 4027 * the companion port GID obtained has IP-Service enabled. 4028 */ 4029 dgid1.gid_prefix = dgid1.gid_guid = 0; 4030 sgid.gid_prefix = sgid.gid_guid = 0; 4031 if ((p_arg->attr.ipa_src_ip.family != AF_UNSPEC) && 4032 (!(p_arg->flags & IBT_PATH_APM))) { 4033 ibt_path_attr_t attr; 4034 4035 retval = ibcm_arp_get_ibaddr(p_arg->attr.ipa_src_ip.un.ip4addr, 4036 p_arg->attr.ipa_dst_ip[0].un.ip4addr, &sgid, &dgid1); 4037 if (retval) { 4038 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_ip_paths: " 4039 "ibcm_arp_get_ibaddr() failed: %d", retval); 4040 goto ippath_error; 4041 } 4042 4043 bzero(&attr, sizeof (ibt_path_attr_t)); 4044 attr.pa_hca_guid = p_arg->attr.ipa_hca_guid; 4045 attr.pa_hca_port_num = p_arg->attr.ipa_hca_port_num; 4046 attr.pa_sgid = sgid; 4047 bcopy(&p_arg->attr.ipa_mtu, &attr.pa_mtu, 4048 sizeof (ibt_mtu_req_t)); 4049 bcopy(&p_arg->attr.ipa_srate, &attr.pa_srate, 4050 sizeof (ibt_srate_req_t)); 4051 bcopy(&p_arg->attr.ipa_pkt_lt, &attr.pa_pkt_lt, 4052 sizeof (ibt_pkt_lt_req_t)); 4053 retval = ibtl_cm_get_active_plist(&attr, p_arg->flags, &sl); 4054 if (retval == IBT_SUCCESS) { 4055 bcopy(&p_arg->attr.ipa_src_ip, &sl->p_src_ip, 4056 sizeof (ibt_ip_addr_t)); 4057 } else { 4058 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_ip_paths: " 4059 "ibtl_cm_get_active_plist: Failed %d", retval); 4060 goto ippath_error; 4061 } 4062 } else { 4063 /* 4064 * Get list of active HCA-Port list, that matches input 4065 * specified attr. 4066 */ 4067 retval = ibcm_arp_get_srcip_plist(&p_arg->attr, p_arg->flags, 4068 &sl); 4069 if (retval != IBT_SUCCESS) { 4070 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_ip_paths: " 4071 "ibcm_arp_get_srcip_plist: Failed %d", retval); 4072 goto ippath_error; 4073 } 4074 4075 sl->p_src_ip.un.ip4addr = htonl(sl->p_src_ip.un.ip4addr); 4076 /* 4077 * Accumulate all destination information. 4078 * Get GID info for the specified input ip-addr. 4079 */ 4080 retval = ibcm_arp_get_ibaddr(sl->p_src_ip.un.ip4addr, 4081 p_arg->attr.ipa_dst_ip[0].un.ip4addr, NULL, &dgid1); 4082 if (retval) { 4083 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_ip_paths: " 4084 "ibcm_arp_get_ibaddr() failed: %d", retval); 4085 goto ippath_error1; 4086 } 4087 } 4088 IBTF_DPRINTF_L4(cmlog, "ibcm_process_get_ip_paths: SrcIP %lX DstIP %lX", 4089 sl->p_src_ip.un.ip4addr, 4090 htonl(p_arg->attr.ipa_dst_ip[0].un.ip4addr)); 4091 4092 IBTF_DPRINTF_L4(cmlog, "ibcm_process_get_ip_paths: SGID %llX:%llX, " 4093 "DGID0: %llX:%llX", sl->p_sgid.gid_prefix, sl->p_sgid.gid_guid, 4094 dgid1.gid_prefix, dgid1.gid_guid); 4095 4096 len = p_arg->attr.ipa_ndst + 1; 4097 len = (len * sizeof (ibcm_ip_dest_t)) + sizeof (ibcm_ip_dinfo_t); 4098 dinfo = kmem_zalloc(len, KM_SLEEP); 4099 4100 dinfo->dest[0].d_gid = dgid1; 4101 bcopy(&p_arg->attr.ipa_dst_ip[0], &dinfo->dest[0].d_ip, 4102 sizeof (ibt_ip_addr_t)); 4103 4104 i = 1; 4105 if (p_arg->attr.ipa_ndst > 1) { 4106 /* Get DGID for all specified Dest IP Addr */ 4107 for (; i < p_arg->attr.ipa_ndst; i++) { 4108 retval = ibcm_arp_get_ibaddr(sl->p_src_ip.un.ip4addr, 4109 p_arg->attr.ipa_dst_ip[i].un.ip4addr, NULL, &dgid2); 4110 if (retval) { 4111 IBTF_DPRINTF_L2(cmlog, 4112 "ibcm_process_get_ip_paths: " 4113 "ibcm_arp_get_ibaddr failed: %d", retval); 4114 goto ippath_error2; 4115 } 4116 dinfo->dest[i].d_gid = dgid2; 4117 4118 IBTF_DPRINTF_L4(cmlog, "ibcm_process_get_ip_paths: " 4119 "DGID%d: %llX:%llX", i, dgid2.gid_prefix, 4120 dgid2.gid_guid); 4121 bcopy(&p_arg->attr.ipa_dst_ip[i], &dinfo->dest[i].d_ip, 4122 sizeof (ibt_ip_addr_t)); 4123 } 4124 4125 if (p_arg->flags & IBT_PATH_APM) { 4126 dgid2 = dinfo->dest[1].d_gid; 4127 4128 retval = ibcm_get_comp_pgids(dgid1, dgid2, 0, 4129 &d_gids_p, &dnum); 4130 if ((retval != IBT_SUCCESS) && 4131 (retval != IBT_GIDS_NOT_FOUND)) { 4132 IBTF_DPRINTF_L2(cmlog, 4133 "ibcm_process_get_ip_paths: " 4134 "Invalid DGIDs specified w/ APM Flag"); 4135 goto ippath_error2; 4136 } 4137 IBTF_DPRINTF_L3(cmlog, "ibcm_process_get_ip_paths: " 4138 "Found %d Comp DGID", dnum); 4139 4140 if (dnum) { 4141 dinfo->dest[i].d_gid = d_gids_p[0]; 4142 dinfo->dest[i].d_ip.family = AF_UNSPEC; 4143 i++; 4144 } 4145 } 4146 } 4147 4148 /* "i" will get us num_dest count. */ 4149 dinfo->num_dest = i; 4150 4151 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*p_arg)) 4152 4153 /* 4154 * IBTF allocates memory for path_info & src_ip in case of 4155 * Async Get IP Paths 4156 */ 4157 if (p_arg->func) { /* Do these only for Async Get Paths */ 4158 p_arg->paths = kmem_zalloc(sizeof (ibt_path_info_t) * max_paths, 4159 KM_SLEEP); 4160 if (p_arg->src_ip_p == NULL) 4161 p_arg->src_ip_p = kmem_zalloc( 4162 sizeof (ibt_path_ip_src_t) * max_paths, KM_SLEEP); 4163 } 4164 4165 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*p_arg)) 4166 4167 IBTF_DPRINTF_L3(cmlog, "ibcm_process_get_ip_paths: HCA (%llX, %d)", 4168 sl->p_hca_guid, sl->p_port_num); 4169 4170 hcap = ibcm_find_hca_entry(sl->p_hca_guid); 4171 if (hcap == NULL) { 4172 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_ip_paths: " 4173 "NO HCA found"); 4174 retval = IBT_HCA_BUSY_DETACHING; 4175 goto ippath_error2; 4176 } 4177 4178 /* Get SA Access Handle. */ 4179 for (i = 0; i < sl->p_count; i++) { 4180 if (i == 0) { 4181 /* Validate whether this HCA supports APM */ 4182 if ((p_arg->flags & IBT_PATH_APM) && 4183 (!(hcap->hca_caps & IBT_HCA_AUTO_PATH_MIG))) { 4184 IBTF_DPRINTF_L2(cmlog, 4185 "ibcm_process_get_ip_paths: HCA (%llX): " 4186 "APM NOT SUPPORTED", sl[i].p_hca_guid); 4187 retval = IBT_APM_NOT_SUPPORTED; 4188 goto ippath_error3; 4189 } 4190 } 4191 4192 saa_handle = ibcm_get_saa_handle(hcap, sl[i].p_port_num); 4193 if (saa_handle == NULL) { 4194 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_ip_paths: " 4195 "SAA HDL NULL, HCA (%llX:%d) NOT ACTIVE", 4196 sl[i].p_hca_guid, sl[i].p_port_num); 4197 retval = IBT_HCA_PORT_NOT_ACTIVE; 4198 goto ippath_error3; 4199 } 4200 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*sl)) 4201 sl[i].p_saa_hdl = saa_handle; 4202 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*sl)) 4203 } 4204 4205 /* Get Path Records. */ 4206 retval = ibcm_saa_ip_pr(p_arg, sl, dinfo, &num_path); 4207 4208 ippath_error3: 4209 ibcm_dec_hca_acc_cnt(hcap); 4210 4211 ippath_error2: 4212 if (dinfo && len) 4213 kmem_free(dinfo, len); 4214 4215 ippath_error1: 4216 if (sl) 4217 ibtl_cm_free_active_plist(sl); 4218 4219 ippath_error: 4220 if ((retval != IBT_SUCCESS) && (retval != IBT_INSUFF_DATA)) 4221 num_path = 0; 4222 4223 if (p_arg->num_paths_p != NULL) 4224 *p_arg->num_paths_p = num_path; 4225 4226 if (p_arg->func) { /* Do these only for Async Get Paths */ 4227 ibt_path_info_t *tmp_path_p; 4228 4229 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*p_arg)) 4230 p_arg->retval = retval; 4231 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*p_arg)) 4232 4233 if (retval == IBT_INSUFF_DATA) { 4234 /* 4235 * We allocated earlier memory based on "max_paths", 4236 * but we got lesser path-records, so re-adjust that 4237 * buffer so that caller can free the correct memory. 4238 */ 4239 tmp_path_p = kmem_alloc( 4240 sizeof (ibt_path_info_t) * num_path, KM_SLEEP); 4241 4242 bcopy(p_arg->paths, tmp_path_p, 4243 num_path * sizeof (ibt_path_info_t)); 4244 4245 kmem_free(p_arg->paths, 4246 sizeof (ibt_path_info_t) * max_paths); 4247 } else if (retval != IBT_SUCCESS) { 4248 if (p_arg->paths) 4249 kmem_free(p_arg->paths, 4250 sizeof (ibt_path_info_t) * max_paths); 4251 if (p_arg->src_ip_p) 4252 kmem_free(p_arg->src_ip_p, 4253 sizeof (ibt_path_ip_src_t) * max_paths); 4254 tmp_path_p = NULL; 4255 } else { 4256 tmp_path_p = p_arg->paths; 4257 } 4258 (*(p_arg->func))(p_arg->arg, retval, tmp_path_p, num_path, 4259 p_arg->src_ip_p); 4260 4261 cv_destroy(&p_arg->ip_cv); 4262 mutex_destroy(&p_arg->ip_lock); 4263 len = p_arg->len; 4264 if (p_arg && len) 4265 kmem_free(p_arg, len); 4266 } else { 4267 mutex_enter(&p_arg->ip_lock); 4268 p_arg->retval = retval; 4269 cv_signal(&p_arg->ip_cv); 4270 mutex_exit(&p_arg->ip_lock); 4271 } 4272 4273 IBTF_DPRINTF_L2(cmlog, "ibcm_process_get_ip_paths: done: status %d, " 4274 "Found %d/%d Path Records", retval, num_path, max_paths); 4275 } 4276 4277 4278 static ibt_status_t 4279 ibcm_val_ipattr(ibt_ip_path_attr_t *attrp, ibt_path_flags_t flags) 4280 { 4281 uint_t i; 4282 4283 if (attrp == NULL) { 4284 IBTF_DPRINTF_L2(cmlog, "ibcm_val_ipattr: IP Path Attr is NULL"); 4285 return (IBT_INVALID_PARAM); 4286 } 4287 4288 IBTF_DPRINTF_L2(cmlog, "ibcm_val_ipattr: Inputs are: HCA %llX:%d, " 4289 "Maxpath= %d, Flags= 0x%X, #Dest %d", attrp->ipa_hca_guid, 4290 attrp->ipa_hca_port_num, attrp->ipa_max_paths, flags, 4291 attrp->ipa_ndst); 4292 4293 /* 4294 * Validate Path Flags. 4295 * IBT_PATH_AVAIL & IBT_PATH_PERF are mutually exclusive. 4296 */ 4297 if ((flags & IBT_PATH_AVAIL) && (flags & IBT_PATH_PERF)) { 4298 IBTF_DPRINTF_L2(cmlog, "ibcm_val_ipattr: Invalid Flags: 0x%X," 4299 "\n\t AVAIL and PERF flags specified together", flags); 4300 return (IBT_INVALID_PARAM); 4301 } 4302 4303 /* 4304 * Validate number of records requested. 4305 * 4306 * Max_paths of "0" is invalid. 4307 * Max_paths <= IBT_MAX_SPECIAL_PATHS, if AVAIL or PERF is set. 4308 */ 4309 if (attrp->ipa_max_paths == 0) { 4310 IBTF_DPRINTF_L2(cmlog, "ibcm_val_ipattr: Invalid max_paths %d", 4311 attrp->ipa_max_paths); 4312 return (IBT_INVALID_PARAM); 4313 } 4314 4315 if ((flags & (IBT_PATH_AVAIL | IBT_PATH_PERF)) && 4316 (attrp->ipa_max_paths > IBT_MAX_SPECIAL_PATHS)) { 4317 IBTF_DPRINTF_L2(cmlog, "ibcm_val_ipattr: MaxPaths that can be " 4318 "requested is <%d> \n when IBT_PATH_AVAIL or IBT_PATH_PERF" 4319 " flag is specified.", IBT_MAX_SPECIAL_PATHS); 4320 return (IBT_INVALID_PARAM); 4321 } 4322 4323 /* Only 2 destinations can be specified w/ APM flag. */ 4324 if ((flags & IBT_PATH_APM) && (attrp->ipa_ndst > 2)) { 4325 IBTF_DPRINTF_L2(cmlog, "ibcm_val_ipattr: Max #Dest is 2, with " 4326 "APM flag"); 4327 return (IBT_INVALID_PARAM); 4328 } 4329 4330 /* Validate the destination info */ 4331 if ((attrp->ipa_ndst == 0) || (attrp->ipa_ndst == NULL)) { 4332 IBTF_DPRINTF_L2(cmlog, "ibcm_val_ipattr: DstIP Not provided " 4333 "dst_ip %p, ndst %d", attrp->ipa_dst_ip, attrp->ipa_ndst); 4334 return (IBT_INVALID_PARAM); 4335 } 4336 4337 /* Validate destination IP */ 4338 for (i = 0; i < attrp->ipa_ndst; i++) { 4339 ibt_ip_addr_t dst_ip = attrp->ipa_dst_ip[i]; 4340 4341 IBTF_DPRINTF_L3(cmlog, "ibcm_val_ipattr: DstIP[%d]:= family %d " 4342 "IP %lX", i, dst_ip.family, htonl(dst_ip.un.ip4addr)); 4343 4344 if (dst_ip.family == AF_UNSPEC) { 4345 IBTF_DPRINTF_L2(cmlog, "ibcm_val_ipattr: ERROR: " 4346 "Invalid DstIP specified"); 4347 return (IBT_INVALID_PARAM); 4348 } 4349 } 4350 4351 IBTF_DPRINTF_L4(cmlog, "ibcm_val_ipattr: SrcIP: family %d, IP %lX", 4352 attrp->ipa_src_ip.family, htonl(attrp->ipa_src_ip.un.ip4addr)); 4353 4354 return (IBT_SUCCESS); 4355 } 4356 4357 4358 static ibt_status_t 4359 ibcm_get_ip_path(ibt_clnt_hdl_t ibt_hdl, ibt_path_flags_t flags, 4360 ibt_ip_path_attr_t *attrp, ibt_path_info_t *paths, uint8_t *num_path_p, 4361 ibt_path_ip_src_t *src_ip_p, ibt_ip_path_handler_t func, void *arg) 4362 { 4363 ibcm_ip_path_tqargs_t *path_tq; 4364 int sleep_flag = ((func == NULL) ? KM_SLEEP : KM_NOSLEEP); 4365 uint_t len, ret; 4366 ibt_status_t retval; 4367 4368 IBTF_DPRINTF_L4(cmlog, "ibcm_get_ip_path(%p, %X, %p, %p, %p %p %p %p)", 4369 ibt_hdl, flags, attrp, paths, num_path_p, src_ip_p, func, arg); 4370 4371 retval = ibcm_val_ipattr(attrp, flags); 4372 if (retval != IBT_SUCCESS) 4373 return (retval); 4374 4375 len = (attrp->ipa_ndst * sizeof (ibt_ip_addr_t)) + 4376 sizeof (ibcm_ip_path_tqargs_t); 4377 path_tq = kmem_zalloc(len, sleep_flag); 4378 if (path_tq == NULL) { 4379 IBTF_DPRINTF_L2(cmlog, "ibcm_get_ip_path: " 4380 "Unable to allocate memory for local usage."); 4381 return (IBT_INSUFF_KERNEL_RESOURCE); 4382 } 4383 4384 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*path_tq)) 4385 mutex_init(&path_tq->ip_lock, NULL, MUTEX_DEFAULT, NULL); 4386 cv_init(&path_tq->ip_cv, NULL, CV_DRIVER, NULL); 4387 bcopy(attrp, &path_tq->attr, sizeof (ibt_ip_path_attr_t)); 4388 4389 path_tq->attr.ipa_dst_ip = (ibt_ip_addr_t *)(((uchar_t *)path_tq) + 4390 sizeof (ibcm_ip_path_tqargs_t)); 4391 bcopy(attrp->ipa_dst_ip, path_tq->attr.ipa_dst_ip, 4392 sizeof (ibt_ip_addr_t) * attrp->ipa_ndst); 4393 4394 /* Ignore IBT_PATH_AVAIL flag, if only one path is requested. */ 4395 if ((flags & IBT_PATH_AVAIL) && (attrp->ipa_max_paths == 1)) { 4396 flags &= ~IBT_PATH_AVAIL; 4397 4398 IBTF_DPRINTF_L4(cmlog, "ibcm_get_ip_path: Ignoring " 4399 "IBT_PATH_AVAIL flag, as only ONE path info is requested."); 4400 } 4401 4402 path_tq->flags = flags; 4403 path_tq->ibt_hdl = ibt_hdl; 4404 path_tq->paths = paths; 4405 path_tq->src_ip_p = src_ip_p; 4406 path_tq->num_paths_p = num_path_p; 4407 path_tq->func = func; 4408 path_tq->arg = arg; 4409 path_tq->len = len; 4410 4411 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*path_tq)) 4412 4413 sleep_flag = ((func == NULL) ? TQ_SLEEP : TQ_NOSLEEP); 4414 mutex_enter(&path_tq->ip_lock); 4415 ret = taskq_dispatch(ibcm_taskq, ibcm_process_get_ip_paths, path_tq, 4416 sleep_flag); 4417 if (ret == 0) { 4418 IBTF_DPRINTF_L2(cmlog, "ibcm_get_ip_path: Failed to dispatch " 4419 "the TaskQ"); 4420 mutex_exit(&path_tq->ip_lock); 4421 cv_destroy(&path_tq->ip_cv); 4422 mutex_destroy(&path_tq->ip_lock); 4423 kmem_free(path_tq, len); 4424 retval = IBT_INSUFF_KERNEL_RESOURCE; 4425 } else { 4426 if (func != NULL) { /* Non-Blocking */ 4427 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_path: NonBlocking"); 4428 retval = IBT_SUCCESS; 4429 mutex_exit(&path_tq->ip_lock); 4430 } else { /* Blocking */ 4431 IBTF_DPRINTF_L3(cmlog, "ibcm_get_ip_path: Blocking"); 4432 cv_wait(&path_tq->ip_cv, &path_tq->ip_lock); 4433 retval = path_tq->retval; 4434 mutex_exit(&path_tq->ip_lock); 4435 cv_destroy(&path_tq->ip_cv); 4436 mutex_destroy(&path_tq->ip_lock); 4437 kmem_free(path_tq, len); 4438 } 4439 } 4440 4441 return (retval); 4442 } 4443 4444 4445 ibt_status_t 4446 ibt_aget_ip_paths(ibt_clnt_hdl_t ibt_hdl, ibt_path_flags_t flags, 4447 ibt_ip_path_attr_t *attrp, ibt_ip_path_handler_t func, void *arg) 4448 { 4449 IBTF_DPRINTF_L3(cmlog, "ibt_aget_ip_paths(%p, 0x%X, %p, %p, %p)", 4450 ibt_hdl, flags, attrp, func, arg); 4451 4452 if (func == NULL) { 4453 IBTF_DPRINTF_L2(cmlog, "ibt_aget_ip_paths: Function Pointer is " 4454 "NULL - ERROR "); 4455 return (IBT_INVALID_PARAM); 4456 } 4457 4458 /* path info will be allocated in ibcm_process_get_ip_paths() */ 4459 return (ibcm_get_ip_path(ibt_hdl, flags, attrp, NULL, NULL, 4460 NULL, func, arg)); 4461 } 4462 4463 4464 ibt_status_t 4465 ibt_get_ip_paths(ibt_clnt_hdl_t ibt_hdl, ibt_path_flags_t flags, 4466 ibt_ip_path_attr_t *attrp, ibt_path_info_t *paths, uint8_t *num_paths_p, 4467 ibt_path_ip_src_t *src_ip_p) 4468 { 4469 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_paths(%p, 0x%X, %p, %p, %p, %p)", 4470 ibt_hdl, flags, attrp, paths, num_paths_p, src_ip_p); 4471 4472 if (paths == NULL) { 4473 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_paths: Path Info Pointer is " 4474 "NULL - ERROR "); 4475 return (IBT_INVALID_PARAM); 4476 } 4477 4478 if (num_paths_p != NULL) 4479 *num_paths_p = 0; 4480 4481 return (ibcm_get_ip_path(ibt_hdl, flags, attrp, paths, num_paths_p, 4482 src_ip_p, NULL, NULL)); 4483 } 4484 4485 4486 ibt_status_t 4487 ibt_get_ip_alt_path(ibt_channel_hdl_t rc_chan, ibt_path_flags_t flags, 4488 ibt_alt_ip_path_attr_t *attrp, ibt_alt_path_info_t *api_p) 4489 { 4490 sa_multipath_record_t *mpr_req; 4491 sa_path_record_t *pr_resp; 4492 ibmf_saa_access_args_t access_args; 4493 ibt_qp_query_attr_t qp_attr; 4494 ibtl_cm_hca_port_t c_hp, n_hp; 4495 ibcm_hca_info_t *hcap; 4496 void *results_p; 4497 uint64_t c_mask = 0; 4498 ib_gid_t *gid_ptr = NULL; 4499 ib_gid_t *sgids_p = NULL, *dgids_p = NULL; 4500 ib_gid_t cur_dgid, cur_sgid; 4501 ib_gid_t new_dgid, new_sgid; 4502 ibmf_saa_handle_t saa_handle; 4503 size_t length; 4504 int i, j, template_len, rec_found; 4505 uint_t snum = 0, dnum = 0, num_rec; 4506 ibt_status_t retval; 4507 ib_mtu_t prim_mtu; 4508 4509 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_alt_path(%p, %x, %p, %p)", 4510 rc_chan, flags, attrp, api_p); 4511 4512 /* validate channel */ 4513 if (IBCM_INVALID_CHANNEL(rc_chan)) { 4514 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: invalid channel"); 4515 return (IBT_CHAN_HDL_INVALID); 4516 } 4517 4518 if (api_p == NULL) { 4519 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: invalid attribute:" 4520 " AltPathInfo can't be NULL"); 4521 return (IBT_INVALID_PARAM); 4522 } 4523 4524 retval = ibt_query_qp(rc_chan, &qp_attr); 4525 if (retval != IBT_SUCCESS) { 4526 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: ibt_query_qp(%p) " 4527 "failed %d", rc_chan, retval); 4528 return (retval); 4529 } 4530 4531 if (qp_attr.qp_info.qp_trans != IBT_RC_SRV) { 4532 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: " 4533 "Invalid Channel type: Applicable only to RC Channel"); 4534 return (IBT_CHAN_SRV_TYPE_INVALID); 4535 } 4536 4537 cur_dgid = 4538 qp_attr.qp_info.qp_transport.rc.rc_path.cep_adds_vect.av_dgid; 4539 cur_sgid = 4540 qp_attr.qp_info.qp_transport.rc.rc_path.cep_adds_vect.av_sgid; 4541 prim_mtu = qp_attr.qp_info.qp_transport.rc.rc_path_mtu; 4542 4543 /* If optional attributes are specified, validate them. */ 4544 if (attrp) { 4545 /* Get SGID and DGID for the specified input ip-addr */ 4546 retval = ibcm_arp_get_ibaddr(attrp->apa_src_ip.un.ip4addr, 4547 attrp->apa_dst_ip.un.ip4addr, &new_sgid, &new_dgid); 4548 if (retval) { 4549 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: " 4550 "ibcm_arp_get_ibaddr() failed: %d", retval); 4551 return (retval); 4552 } 4553 } else { 4554 new_dgid.gid_prefix = 0; 4555 new_dgid.gid_guid = 0; 4556 new_sgid.gid_prefix = 0; 4557 new_sgid.gid_guid = 0; 4558 } 4559 4560 if ((new_dgid.gid_prefix != 0) && (new_sgid.gid_prefix != 0) && 4561 (new_dgid.gid_prefix != new_sgid.gid_prefix)) { 4562 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: Specified SGID's " 4563 "SNprefix (%llX) doesn't match with \n specified DGID's " 4564 "SNprefix: %llX", new_sgid.gid_prefix, new_dgid.gid_prefix); 4565 return (IBT_INVALID_PARAM); 4566 } 4567 4568 /* For the specified SGID, get HCA information. */ 4569 retval = ibtl_cm_get_hca_port(cur_sgid, 0, &c_hp); 4570 if (retval != IBT_SUCCESS) { 4571 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: " 4572 "Get HCA Port Failed: %d", retval); 4573 return (retval); 4574 } 4575 4576 hcap = ibcm_find_hca_entry(c_hp.hp_hca_guid); 4577 if (hcap == NULL) { 4578 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: NO HCA found"); 4579 return (IBT_HCA_BUSY_DETACHING); 4580 } 4581 4582 /* Validate whether this HCA support APM */ 4583 if (!(hcap->hca_caps & IBT_HCA_AUTO_PATH_MIG)) { 4584 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: " 4585 "HCA (%llX) - APM NOT SUPPORTED ", c_hp.hp_hca_guid); 4586 retval = IBT_APM_NOT_SUPPORTED; 4587 goto get_ip_alt_path_done; 4588 } 4589 4590 /* Get Companion Port GID of the current Channel's SGID */ 4591 if ((new_sgid.gid_guid == 0) || ((new_sgid.gid_guid != 0) && 4592 (new_sgid.gid_guid != cur_sgid.gid_guid))) { 4593 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_alt_path: SRC: " 4594 "Get Companion PortGids for - %llX:%llX", 4595 cur_sgid.gid_prefix, cur_sgid.gid_guid); 4596 4597 retval = ibcm_get_comp_pgids(cur_sgid, new_sgid, 4598 c_hp.hp_hca_guid, &sgids_p, &snum); 4599 if (retval != IBT_SUCCESS) 4600 goto get_ip_alt_path_done; 4601 } 4602 4603 /* Get Companion Port GID of the current Channel's DGID */ 4604 if ((new_dgid.gid_guid == 0) || ((new_dgid.gid_guid != 0) && 4605 (new_dgid.gid_guid != cur_dgid.gid_guid))) { 4606 4607 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_alt_path: DEST: " 4608 "Get Companion PortGids for - %llX:%llX", 4609 cur_dgid.gid_prefix, cur_dgid.gid_guid); 4610 4611 retval = ibcm_get_comp_pgids(cur_dgid, new_dgid, 0, &dgids_p, 4612 &dnum); 4613 if (retval != IBT_SUCCESS) 4614 goto get_ip_alt_path_done; 4615 } 4616 4617 if ((new_dgid.gid_guid == 0) || (new_sgid.gid_guid == 0)) { 4618 if (new_sgid.gid_guid == 0) { 4619 for (i = 0; i < snum; i++) { 4620 if (new_dgid.gid_guid == 0) { 4621 for (j = 0; j < dnum; j++) { 4622 if (sgids_p[i].gid_prefix == 4623 dgids_p[j].gid_prefix) { 4624 new_dgid = dgids_p[j]; 4625 new_sgid = sgids_p[i]; 4626 4627 goto get_ip_alt_proceed; 4628 } 4629 } 4630 /* Current DGID */ 4631 if (sgids_p[i].gid_prefix == 4632 cur_dgid.gid_prefix) { 4633 new_sgid = sgids_p[i]; 4634 goto get_ip_alt_proceed; 4635 } 4636 } else { 4637 if (sgids_p[i].gid_prefix == 4638 new_dgid.gid_prefix) { 4639 new_sgid = sgids_p[i]; 4640 goto get_ip_alt_proceed; 4641 } 4642 } 4643 } 4644 /* Current SGID */ 4645 if (new_dgid.gid_guid == 0) { 4646 for (j = 0; j < dnum; j++) { 4647 if (cur_sgid.gid_prefix == 4648 dgids_p[j].gid_prefix) { 4649 new_dgid = dgids_p[j]; 4650 4651 goto get_ip_alt_proceed; 4652 } 4653 } 4654 } 4655 } else if (new_dgid.gid_guid == 0) { 4656 for (i = 0; i < dnum; i++) { 4657 if (dgids_p[i].gid_prefix == 4658 new_sgid.gid_prefix) { 4659 new_dgid = dgids_p[i]; 4660 goto get_ip_alt_proceed; 4661 } 4662 } 4663 /* Current DGID */ 4664 if (cur_dgid.gid_prefix == new_sgid.gid_prefix) { 4665 goto get_ip_alt_proceed; 4666 } 4667 } 4668 /* 4669 * hmm... No Companion Ports available. 4670 * so we will be using current or specified attributes only. 4671 */ 4672 } 4673 4674 get_ip_alt_proceed: 4675 if (new_sgid.gid_guid != 0) { 4676 retval = ibtl_cm_get_hca_port(new_sgid, 0, &n_hp); 4677 if (retval != IBT_SUCCESS) { 4678 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: " 4679 "Get HCA Port Failed: %d", retval); 4680 goto get_ip_alt_path_done; 4681 } 4682 } 4683 4684 /* Calculate the size for multi-path records template */ 4685 template_len = (2 * sizeof (ib_gid_t)) + sizeof (sa_multipath_record_t); 4686 4687 mpr_req = kmem_zalloc(template_len, KM_SLEEP); 4688 4689 ASSERT(mpr_req != NULL); 4690 4691 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*mpr_req)) 4692 4693 gid_ptr = (ib_gid_t *)(((uchar_t *)mpr_req) + 4694 sizeof (sa_multipath_record_t)); 4695 4696 /* SGID */ 4697 if (new_sgid.gid_guid == 0) 4698 *gid_ptr = cur_sgid; 4699 else 4700 *gid_ptr = new_sgid; 4701 4702 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_alt_path: Get Path Between " 4703 " SGID : %llX:%llX", gid_ptr->gid_prefix, gid_ptr->gid_guid); 4704 4705 gid_ptr++; 4706 4707 /* DGID */ 4708 if (new_dgid.gid_guid == 0) 4709 *gid_ptr = cur_dgid; 4710 else 4711 *gid_ptr = new_dgid; 4712 4713 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_alt_path:\t\t DGID : %llX:%llX", 4714 gid_ptr->gid_prefix, gid_ptr->gid_guid); 4715 4716 mpr_req->SGIDCount = 1; 4717 c_mask = SA_MPR_COMPMASK_SGIDCOUNT; 4718 4719 mpr_req->DGIDCount = 1; 4720 c_mask |= SA_MPR_COMPMASK_DGIDCOUNT; 4721 4722 /* Is Flow Label Specified. */ 4723 if (attrp) { 4724 if (attrp->apa_flow) { 4725 mpr_req->FlowLabel = attrp->apa_flow; 4726 c_mask |= SA_MPR_COMPMASK_FLOWLABEL; 4727 } 4728 4729 /* Is HopLimit Specified. */ 4730 if (flags & IBT_PATH_HOP) { 4731 mpr_req->HopLimit = attrp->apa_hop; 4732 c_mask |= SA_MPR_COMPMASK_HOPLIMIT; 4733 } 4734 4735 /* Is TClass Specified. */ 4736 if (attrp->apa_tclass) { 4737 mpr_req->TClass = attrp->apa_tclass; 4738 c_mask |= SA_MPR_COMPMASK_TCLASS; 4739 } 4740 4741 /* Is SL specified. */ 4742 if (attrp->apa_sl) { 4743 mpr_req->SL = attrp->apa_sl; 4744 c_mask |= SA_MPR_COMPMASK_SL; 4745 } 4746 4747 if (flags & IBT_PATH_PERF) { 4748 mpr_req->PacketLifeTimeSelector = IBT_BEST; 4749 mpr_req->RateSelector = IBT_BEST; 4750 4751 c_mask |= SA_MPR_COMPMASK_PKTLTSELECTOR | 4752 SA_MPR_COMPMASK_RATESELECTOR; 4753 } else { 4754 if (attrp->apa_pkt_lt.p_selector == IBT_BEST) { 4755 mpr_req->PacketLifeTimeSelector = IBT_BEST; 4756 c_mask |= SA_MPR_COMPMASK_PKTLTSELECTOR; 4757 } 4758 4759 if (attrp->apa_srate.r_selector == IBT_BEST) { 4760 mpr_req->RateSelector = IBT_BEST; 4761 c_mask |= SA_MPR_COMPMASK_RATESELECTOR; 4762 } 4763 } 4764 4765 /* 4766 * Honor individual selection of these attributes, 4767 * even if IBT_PATH_PERF is set. 4768 */ 4769 /* Check out whether Packet Life Time is specified. */ 4770 if (attrp->apa_pkt_lt.p_pkt_lt) { 4771 mpr_req->PacketLifeTime = 4772 ibt_usec2ib(attrp->apa_pkt_lt.p_pkt_lt); 4773 mpr_req->PacketLifeTimeSelector = 4774 attrp->apa_pkt_lt.p_selector; 4775 4776 c_mask |= SA_MPR_COMPMASK_PKTLT | 4777 SA_MPR_COMPMASK_PKTLTSELECTOR; 4778 } 4779 4780 /* Is SRATE specified. */ 4781 if (attrp->apa_srate.r_srate) { 4782 mpr_req->Rate = attrp->apa_srate.r_srate; 4783 mpr_req->RateSelector = attrp->apa_srate.r_selector; 4784 4785 c_mask |= SA_MPR_COMPMASK_RATE | 4786 SA_MPR_COMPMASK_RATESELECTOR; 4787 } 4788 } 4789 4790 /* Alt PathMTU can be GT or EQU to current channel's Pri PathMTU */ 4791 4792 /* P_Key must be same as that of primary path */ 4793 retval = ibt_index2pkey_byguid(c_hp.hp_hca_guid, c_hp.hp_port, 4794 qp_attr.qp_info.qp_transport.rc.rc_path.cep_pkey_ix, 4795 &mpr_req->P_Key); 4796 if (retval != IBT_SUCCESS) { 4797 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: PKeyIdx2Pkey " 4798 "Failed: %d", retval); 4799 goto get_ip_alt_path_done; 4800 } 4801 c_mask |= SA_MPR_COMPMASK_PKEY; 4802 4803 mpr_req->Reversible = 1; /* We always get REVERSIBLE paths. */ 4804 mpr_req->IndependenceSelector = 1; 4805 c_mask |= SA_MPR_COMPMASK_REVERSIBLE | SA_MPR_COMPMASK_INDEPSEL; 4806 4807 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*mpr_req)) 4808 4809 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_alt_path: CMask: 0x%llX", c_mask); 4810 4811 /* NOTE: We will **NOT** specify how many records we want. */ 4812 4813 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_alt_path: Primary: MTU %d, PKey[%d]=" 4814 "0x%X\n\tSGID = %llX:%llX, DGID = %llX:%llX", prim_mtu, 4815 qp_attr.qp_info.qp_transport.rc.rc_path.cep_pkey_ix, mpr_req->P_Key, 4816 cur_sgid.gid_prefix, cur_sgid.gid_guid, cur_dgid.gid_prefix, 4817 cur_dgid.gid_guid); 4818 4819 /* Get SA Access Handle. */ 4820 if (new_sgid.gid_guid != 0) 4821 saa_handle = ibcm_get_saa_handle(hcap, n_hp.hp_port); 4822 else 4823 saa_handle = ibcm_get_saa_handle(hcap, c_hp.hp_port); 4824 if (saa_handle == NULL) { 4825 retval = IBT_HCA_PORT_NOT_ACTIVE; 4826 goto get_ip_alt_path_done; 4827 } 4828 4829 /* Contact SA Access to retrieve Path Records. */ 4830 access_args.sq_attr_id = SA_MULTIPATHRECORD_ATTRID; 4831 access_args.sq_access_type = IBMF_SAA_RETRIEVE; 4832 access_args.sq_component_mask = c_mask; 4833 access_args.sq_template = mpr_req; 4834 access_args.sq_template_length = sizeof (sa_multipath_record_t); 4835 access_args.sq_callback = NULL; 4836 access_args.sq_callback_arg = NULL; 4837 4838 retval = ibcm_contact_sa_access(saa_handle, &access_args, &length, 4839 &results_p); 4840 if (retval != IBT_SUCCESS) { 4841 goto get_ip_alt_path_done; 4842 } 4843 4844 num_rec = length / sizeof (sa_path_record_t); 4845 4846 kmem_free(mpr_req, template_len); 4847 4848 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_alt_path: Found %d Paths", num_rec); 4849 4850 rec_found = 0; 4851 if ((results_p != NULL) && (num_rec > 0)) { 4852 /* Update the PathInfo with the response Path Records */ 4853 pr_resp = (sa_path_record_t *)results_p; 4854 for (i = 0; i < num_rec; i++, pr_resp++) { 4855 if (prim_mtu > pr_resp->Mtu) { 4856 IBTF_DPRINTF_L2(cmlog, "ibt_get_ip_alt_path: " 4857 "Alt PathMTU(%d) must be GT or EQU to Pri " 4858 "PathMTU(%d). Ignore this rec", 4859 pr_resp->Mtu, prim_mtu); 4860 continue; 4861 } 4862 4863 if ((new_sgid.gid_guid == 0) && 4864 (new_dgid.gid_guid == 0)) { 4865 /* Reject PathRec if it same as Primary Path. */ 4866 if (ibcm_compare_paths(pr_resp, 4867 &qp_attr.qp_info.qp_transport.rc.rc_path, 4868 &c_hp) == B_TRUE) { 4869 IBTF_DPRINTF_L3(cmlog, 4870 "ibt_get_ip_alt_path: PathRec " 4871 "obtained is similar to Prim Path, " 4872 "ignore this record"); 4873 continue; 4874 } 4875 } 4876 4877 if (new_sgid.gid_guid == 0) { 4878 retval = ibcm_update_cep_info(pr_resp, NULL, 4879 &c_hp, &api_p->ap_alt_cep_path); 4880 } else { 4881 retval = ibcm_update_cep_info(pr_resp, NULL, 4882 &n_hp, &api_p->ap_alt_cep_path); 4883 } 4884 if (retval != IBT_SUCCESS) 4885 continue; 4886 4887 /* Update some leftovers */ 4888 _NOTE(NOW_INVISIBLE_TO_OTHER_THREADS(*api_p)) 4889 4890 api_p->ap_alt_pkt_lt = pr_resp->PacketLifeTime; 4891 4892 _NOTE(NOW_VISIBLE_TO_OTHER_THREADS(*api_p)) 4893 4894 rec_found = 1; 4895 break; 4896 } 4897 kmem_free(results_p, length); 4898 } 4899 4900 if (rec_found == 0) { 4901 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_alt_path: AltPath cannot" 4902 " be established"); 4903 retval = IBT_PATH_RECORDS_NOT_FOUND; 4904 } else 4905 retval = IBT_SUCCESS; 4906 4907 get_ip_alt_path_done: 4908 if ((snum) && (sgids_p)) 4909 kmem_free(sgids_p, snum * sizeof (ib_gid_t)); 4910 4911 if ((dnum) && (dgids_p)) 4912 kmem_free(dgids_p, dnum * sizeof (ib_gid_t)); 4913 4914 ibcm_dec_hca_acc_cnt(hcap); 4915 4916 IBTF_DPRINTF_L3(cmlog, "ibt_get_ip_alt_path: Done (status %d)", retval); 4917 4918 return (retval); 4919 } 4920 4921 4922 /* Routines for warlock */ 4923 4924 /* ARGSUSED */ 4925 static void 4926 ibcm_dummy_path_handler(void *arg, ibt_status_t retval, ibt_path_info_t *paths, 4927 uint8_t num_path) 4928 { 4929 ibcm_path_tqargs_t dummy_path; 4930 4931 dummy_path.func = ibcm_dummy_path_handler; 4932 4933 IBTF_DPRINTF_L5(cmlog, "ibcm_dummy_path_handler: " 4934 "dummy_path.func %p", dummy_path.func); 4935 } 4936 4937 /* ARGSUSED */ 4938 static void 4939 ibcm_dummy_ip_path_handler(void *arg, ibt_status_t retval, 4940 ibt_path_info_t *paths, uint8_t num_path, ibt_path_ip_src_t *src_ip) 4941 { 4942 ibcm_ip_path_tqargs_t dummy_path; 4943 4944 dummy_path.func = ibcm_dummy_ip_path_handler; 4945 4946 IBTF_DPRINTF_L5(cmlog, "ibcm_dummy_ip_path_handler: " 4947 "dummy_path.func %p", dummy_path.func); 4948 } 4949