1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (C) 2019 Intel Corporation. 3 * Copyright (c) 2018-2019 Broadcom. All Rights Reserved. 4 * The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries. 5 * Copyright (c) 2022 NVIDIA CORPORATION & AFFILIATES. All rights reserved. 6 */ 7 8 /* 9 * NVMe_FC transport functions. 10 */ 11 12 #include "spdk/env.h" 13 #include "spdk/assert.h" 14 #include "spdk/nvmf_transport.h" 15 #include "spdk/string.h" 16 #include "spdk/trace.h" 17 #include "spdk/util.h" 18 #include "spdk/likely.h" 19 #include "spdk/endian.h" 20 #include "spdk/log.h" 21 #include "spdk/thread.h" 22 23 #include "nvmf_fc.h" 24 #include "fc_lld.h" 25 26 #include "spdk_internal/trace_defs.h" 27 28 #ifndef DEV_VERIFY 29 #define DEV_VERIFY assert 30 #endif 31 32 #ifndef ASSERT_SPDK_FC_MAIN_THREAD 33 #define ASSERT_SPDK_FC_MAIN_THREAD() \ 34 DEV_VERIFY(spdk_get_thread() == nvmf_fc_get_main_thread()); 35 #endif 36 37 /* 38 * PRLI service parameters 39 */ 40 enum spdk_nvmf_fc_service_parameters { 41 SPDK_NVMF_FC_FIRST_BURST_SUPPORTED = 0x0001, 42 SPDK_NVMF_FC_DISCOVERY_SERVICE = 0x0008, 43 SPDK_NVMF_FC_TARGET_FUNCTION = 0x0010, 44 SPDK_NVMF_FC_INITIATOR_FUNCTION = 0x0020, 45 SPDK_NVMF_FC_CONFIRMED_COMPLETION_SUPPORTED = 0x0080, 46 }; 47 48 static char *fc_req_state_strs[] = { 49 "SPDK_NVMF_FC_REQ_INIT", 50 "SPDK_NVMF_FC_REQ_READ_BDEV", 51 "SPDK_NVMF_FC_REQ_READ_XFER", 52 "SPDK_NVMF_FC_REQ_READ_RSP", 53 "SPDK_NVMF_FC_REQ_WRITE_BUFFS", 54 "SPDK_NVMF_FC_REQ_WRITE_XFER", 55 "SPDK_NVMF_FC_REQ_WRITE_BDEV", 56 "SPDK_NVMF_FC_REQ_WRITE_RSP", 57 "SPDK_NVMF_FC_REQ_NONE_BDEV", 58 "SPDK_NVMF_FC_REQ_NONE_RSP", 59 "SPDK_NVMF_FC_REQ_SUCCESS", 60 "SPDK_NVMF_FC_REQ_FAILED", 61 "SPDK_NVMF_FC_REQ_ABORTED", 62 "SPDK_NVMF_FC_REQ_BDEV_ABORTED", 63 "SPDK_NVMF_FC_REQ_PENDING", 64 "SPDK_NVMF_FC_REQ_FUSED_WAITING" 65 }; 66 67 #define HWQP_CONN_TABLE_SIZE 8192 68 #define HWQP_RPI_TABLE_SIZE 4096 69 70 static void 71 nvmf_fc_trace(void) 72 { 73 spdk_trace_register_object(OBJECT_NVMF_FC_IO, 'r'); 74 spdk_trace_register_description("FC_NEW", 75 TRACE_FC_REQ_INIT, 76 OWNER_TYPE_NONE, OBJECT_NVMF_FC_IO, 1, 77 SPDK_TRACE_ARG_TYPE_INT, ""); 78 spdk_trace_register_description("FC_READ_SBMT_TO_BDEV", 79 TRACE_FC_REQ_READ_BDEV, 80 OWNER_TYPE_NONE, OBJECT_NVMF_FC_IO, 0, 81 SPDK_TRACE_ARG_TYPE_INT, ""); 82 spdk_trace_register_description("FC_READ_XFER_DATA", 83 TRACE_FC_REQ_READ_XFER, 84 OWNER_TYPE_NONE, OBJECT_NVMF_FC_IO, 0, 85 SPDK_TRACE_ARG_TYPE_INT, ""); 86 spdk_trace_register_description("FC_READ_RSP", 87 TRACE_FC_REQ_READ_RSP, 88 OWNER_TYPE_NONE, OBJECT_NVMF_FC_IO, 0, 89 SPDK_TRACE_ARG_TYPE_INT, ""); 90 spdk_trace_register_description("FC_WRITE_NEED_BUFFER", 91 TRACE_FC_REQ_WRITE_BUFFS, 92 OWNER_TYPE_NONE, OBJECT_NVMF_FC_IO, 0, 93 SPDK_TRACE_ARG_TYPE_INT, ""); 94 spdk_trace_register_description("FC_WRITE_XFER_DATA", 95 TRACE_FC_REQ_WRITE_XFER, 96 OWNER_TYPE_NONE, OBJECT_NVMF_FC_IO, 0, 97 SPDK_TRACE_ARG_TYPE_INT, ""); 98 spdk_trace_register_description("FC_WRITE_SBMT_TO_BDEV", 99 TRACE_FC_REQ_WRITE_BDEV, 100 OWNER_TYPE_NONE, OBJECT_NVMF_FC_IO, 0, 101 SPDK_TRACE_ARG_TYPE_INT, ""); 102 spdk_trace_register_description("FC_WRITE_RSP", 103 TRACE_FC_REQ_WRITE_RSP, 104 OWNER_TYPE_NONE, OBJECT_NVMF_FC_IO, 0, 105 SPDK_TRACE_ARG_TYPE_INT, ""); 106 spdk_trace_register_description("FC_NONE_SBMT_TO_BDEV", 107 TRACE_FC_REQ_NONE_BDEV, 108 OWNER_TYPE_NONE, OBJECT_NVMF_FC_IO, 0, 109 SPDK_TRACE_ARG_TYPE_INT, ""); 110 spdk_trace_register_description("FC_NONE_RSP", 111 TRACE_FC_REQ_NONE_RSP, 112 OWNER_TYPE_NONE, OBJECT_NVMF_FC_IO, 0, 113 SPDK_TRACE_ARG_TYPE_INT, ""); 114 spdk_trace_register_description("FC_SUCCESS", 115 TRACE_FC_REQ_SUCCESS, 116 OWNER_TYPE_NONE, OBJECT_NONE, 0, 117 SPDK_TRACE_ARG_TYPE_INT, ""); 118 spdk_trace_register_description("FC_FAILED", 119 TRACE_FC_REQ_FAILED, 120 OWNER_TYPE_NONE, OBJECT_NONE, 0, 121 SPDK_TRACE_ARG_TYPE_INT, ""); 122 spdk_trace_register_description("FC_ABRT", 123 TRACE_FC_REQ_ABORTED, 124 OWNER_TYPE_NONE, OBJECT_NONE, 0, 125 SPDK_TRACE_ARG_TYPE_INT, ""); 126 spdk_trace_register_description("FC_ABRT_SBMT_TO_BDEV", 127 TRACE_FC_REQ_BDEV_ABORTED, 128 OWNER_TYPE_NONE, OBJECT_NONE, 0, 129 SPDK_TRACE_ARG_TYPE_INT, ""); 130 spdk_trace_register_description("FC_PENDING", 131 TRACE_FC_REQ_PENDING, 132 OWNER_TYPE_NONE, OBJECT_NONE, 0, 133 SPDK_TRACE_ARG_TYPE_INT, ""); 134 spdk_trace_register_description("FC_FUSED_WAITING", 135 TRACE_FC_REQ_FUSED_WAITING, 136 OWNER_TYPE_NONE, OBJECT_NONE, 0, 137 SPDK_TRACE_ARG_TYPE_INT, ""); 138 } 139 SPDK_TRACE_REGISTER_FN(nvmf_fc_trace, "nvmf_fc", TRACE_GROUP_NVMF_FC) 140 141 /** 142 * The structure used by all fc adm functions 143 */ 144 struct spdk_nvmf_fc_adm_api_data { 145 void *api_args; 146 spdk_nvmf_fc_callback cb_func; 147 }; 148 149 /** 150 * The callback structure for nport-delete 151 */ 152 struct spdk_nvmf_fc_adm_nport_del_cb_data { 153 struct spdk_nvmf_fc_nport *nport; 154 uint8_t port_handle; 155 spdk_nvmf_fc_callback fc_cb_func; 156 void *fc_cb_ctx; 157 }; 158 159 /** 160 * The callback structure for it-delete 161 */ 162 struct spdk_nvmf_fc_adm_i_t_del_cb_data { 163 struct spdk_nvmf_fc_nport *nport; 164 struct spdk_nvmf_fc_remote_port_info *rport; 165 uint8_t port_handle; 166 spdk_nvmf_fc_callback fc_cb_func; 167 void *fc_cb_ctx; 168 }; 169 170 171 typedef void (*spdk_nvmf_fc_adm_i_t_delete_assoc_cb_fn)(void *arg, uint32_t err); 172 173 /** 174 * The callback structure for the it-delete-assoc callback 175 */ 176 struct spdk_nvmf_fc_adm_i_t_del_assoc_cb_data { 177 struct spdk_nvmf_fc_nport *nport; 178 struct spdk_nvmf_fc_remote_port_info *rport; 179 uint8_t port_handle; 180 spdk_nvmf_fc_adm_i_t_delete_assoc_cb_fn cb_func; 181 void *cb_ctx; 182 }; 183 184 /* 185 * Call back function pointer for HW port quiesce. 186 */ 187 typedef void (*spdk_nvmf_fc_adm_hw_port_quiesce_cb_fn)(void *ctx, int err); 188 189 /** 190 * Context structure for quiescing a hardware port 191 */ 192 struct spdk_nvmf_fc_adm_hw_port_quiesce_ctx { 193 int quiesce_count; 194 void *ctx; 195 spdk_nvmf_fc_adm_hw_port_quiesce_cb_fn cb_func; 196 }; 197 198 /** 199 * Context structure used to reset a hardware port 200 */ 201 struct spdk_nvmf_fc_adm_hw_port_reset_ctx { 202 void *reset_args; 203 spdk_nvmf_fc_callback reset_cb_func; 204 }; 205 206 struct spdk_nvmf_fc_transport { 207 struct spdk_nvmf_transport transport; 208 struct spdk_poller *accept_poller; 209 pthread_mutex_t lock; 210 }; 211 212 static struct spdk_nvmf_fc_transport *g_nvmf_ftransport; 213 214 static spdk_nvmf_transport_destroy_done_cb g_transport_destroy_done_cb = NULL; 215 216 static TAILQ_HEAD(, spdk_nvmf_fc_port) g_spdk_nvmf_fc_port_list = 217 TAILQ_HEAD_INITIALIZER(g_spdk_nvmf_fc_port_list); 218 219 static struct spdk_thread *g_nvmf_fc_main_thread = NULL; 220 221 static uint32_t g_nvmf_fgroup_count = 0; 222 static TAILQ_HEAD(, spdk_nvmf_fc_poll_group) g_nvmf_fgroups = 223 TAILQ_HEAD_INITIALIZER(g_nvmf_fgroups); 224 225 struct spdk_thread * 226 nvmf_fc_get_main_thread(void) 227 { 228 return g_nvmf_fc_main_thread; 229 } 230 231 static inline void 232 nvmf_fc_record_req_trace_point(struct spdk_nvmf_fc_request *fc_req, 233 enum spdk_nvmf_fc_request_state state) 234 { 235 uint16_t tpoint_id = SPDK_TRACE_MAX_TPOINT_ID; 236 237 switch (state) { 238 case SPDK_NVMF_FC_REQ_INIT: 239 /* Start IO tracing */ 240 tpoint_id = TRACE_FC_REQ_INIT; 241 break; 242 case SPDK_NVMF_FC_REQ_READ_BDEV: 243 tpoint_id = TRACE_FC_REQ_READ_BDEV; 244 break; 245 case SPDK_NVMF_FC_REQ_READ_XFER: 246 tpoint_id = TRACE_FC_REQ_READ_XFER; 247 break; 248 case SPDK_NVMF_FC_REQ_READ_RSP: 249 tpoint_id = TRACE_FC_REQ_READ_RSP; 250 break; 251 case SPDK_NVMF_FC_REQ_WRITE_BUFFS: 252 tpoint_id = TRACE_FC_REQ_WRITE_BUFFS; 253 break; 254 case SPDK_NVMF_FC_REQ_WRITE_XFER: 255 tpoint_id = TRACE_FC_REQ_WRITE_XFER; 256 break; 257 case SPDK_NVMF_FC_REQ_WRITE_BDEV: 258 tpoint_id = TRACE_FC_REQ_WRITE_BDEV; 259 break; 260 case SPDK_NVMF_FC_REQ_WRITE_RSP: 261 tpoint_id = TRACE_FC_REQ_WRITE_RSP; 262 break; 263 case SPDK_NVMF_FC_REQ_NONE_BDEV: 264 tpoint_id = TRACE_FC_REQ_NONE_BDEV; 265 break; 266 case SPDK_NVMF_FC_REQ_NONE_RSP: 267 tpoint_id = TRACE_FC_REQ_NONE_RSP; 268 break; 269 case SPDK_NVMF_FC_REQ_SUCCESS: 270 tpoint_id = TRACE_FC_REQ_SUCCESS; 271 break; 272 case SPDK_NVMF_FC_REQ_FAILED: 273 tpoint_id = TRACE_FC_REQ_FAILED; 274 break; 275 case SPDK_NVMF_FC_REQ_ABORTED: 276 tpoint_id = TRACE_FC_REQ_ABORTED; 277 break; 278 case SPDK_NVMF_FC_REQ_BDEV_ABORTED: 279 tpoint_id = TRACE_FC_REQ_ABORTED; 280 break; 281 case SPDK_NVMF_FC_REQ_PENDING: 282 tpoint_id = TRACE_FC_REQ_PENDING; 283 break; 284 case SPDK_NVMF_FC_REQ_FUSED_WAITING: 285 tpoint_id = TRACE_FC_REQ_FUSED_WAITING; 286 break; 287 default: 288 assert(0); 289 break; 290 } 291 if (tpoint_id != SPDK_TRACE_MAX_TPOINT_ID) { 292 spdk_trace_record(tpoint_id, fc_req->poller_lcore, 0, 293 (uint64_t)(&fc_req->req)); 294 } 295 } 296 297 static struct rte_hash * 298 nvmf_fc_create_hash_table(const char *name, size_t num_entries, size_t key_len) 299 { 300 struct rte_hash_parameters hash_params = { 0 }; 301 302 hash_params.entries = num_entries; 303 hash_params.key_len = key_len; 304 hash_params.name = name; 305 306 return rte_hash_create(&hash_params); 307 } 308 309 void 310 nvmf_fc_free_conn_reqpool(struct spdk_nvmf_fc_conn *fc_conn) 311 { 312 free(fc_conn->pool_memory); 313 fc_conn->pool_memory = NULL; 314 } 315 316 int 317 nvmf_fc_create_conn_reqpool(struct spdk_nvmf_fc_conn *fc_conn) 318 { 319 uint32_t i, qd; 320 struct spdk_nvmf_fc_pooled_request *req; 321 322 /* 323 * Create number of fc-requests to be more than the actual SQ size. 324 * This is to handle race conditions where the target driver may send 325 * back a RSP and before the target driver gets to process the CQE 326 * for the RSP, the initiator may have sent a new command. 327 * Depending on the load on the HWQP, there is a slim possibility 328 * that the target reaps the RQE corresponding to the new 329 * command before processing the CQE corresponding to the RSP. 330 */ 331 qd = fc_conn->max_queue_depth * 2; 332 333 STAILQ_INIT(&fc_conn->pool_queue); 334 fc_conn->pool_memory = calloc((fc_conn->max_queue_depth * 2), 335 sizeof(struct spdk_nvmf_fc_request)); 336 if (!fc_conn->pool_memory) { 337 SPDK_ERRLOG("create fc req ring objects failed\n"); 338 goto error; 339 } 340 fc_conn->pool_size = qd; 341 fc_conn->pool_free_elems = qd; 342 343 /* Initialise value in ring objects and link the objects */ 344 for (i = 0; i < qd; i++) { 345 req = (struct spdk_nvmf_fc_pooled_request *)((char *)fc_conn->pool_memory + 346 i * sizeof(struct spdk_nvmf_fc_request)); 347 348 STAILQ_INSERT_TAIL(&fc_conn->pool_queue, req, pool_link); 349 } 350 return 0; 351 error: 352 nvmf_fc_free_conn_reqpool(fc_conn); 353 return -1; 354 } 355 356 static inline struct spdk_nvmf_fc_request * 357 nvmf_fc_conn_alloc_fc_request(struct spdk_nvmf_fc_conn *fc_conn) 358 { 359 struct spdk_nvmf_fc_request *fc_req; 360 struct spdk_nvmf_fc_pooled_request *pooled_req; 361 struct spdk_nvmf_fc_hwqp *hwqp = fc_conn->hwqp; 362 363 pooled_req = STAILQ_FIRST(&fc_conn->pool_queue); 364 if (!pooled_req) { 365 SPDK_ERRLOG("Alloc request buffer failed\n"); 366 return NULL; 367 } 368 STAILQ_REMOVE_HEAD(&fc_conn->pool_queue, pool_link); 369 fc_conn->pool_free_elems -= 1; 370 371 fc_req = (struct spdk_nvmf_fc_request *)pooled_req; 372 memset(fc_req, 0, sizeof(struct spdk_nvmf_fc_request)); 373 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_INIT); 374 375 TAILQ_INSERT_TAIL(&hwqp->in_use_reqs, fc_req, link); 376 TAILQ_INSERT_TAIL(&fc_conn->in_use_reqs, fc_req, conn_link); 377 TAILQ_INIT(&fc_req->abort_cbs); 378 return fc_req; 379 } 380 381 static inline void 382 nvmf_fc_conn_free_fc_request(struct spdk_nvmf_fc_conn *fc_conn, struct spdk_nvmf_fc_request *fc_req) 383 { 384 if (fc_req->state != SPDK_NVMF_FC_REQ_SUCCESS) { 385 /* Log an error for debug purpose. */ 386 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_FAILED); 387 } 388 389 /* set the magic to mark req as no longer valid. */ 390 fc_req->magic = 0xDEADBEEF; 391 392 TAILQ_REMOVE(&fc_conn->hwqp->in_use_reqs, fc_req, link); 393 TAILQ_REMOVE(&fc_conn->in_use_reqs, fc_req, conn_link); 394 395 STAILQ_INSERT_HEAD(&fc_conn->pool_queue, (struct spdk_nvmf_fc_pooled_request *)fc_req, pool_link); 396 fc_conn->pool_free_elems += 1; 397 } 398 399 static inline void 400 nvmf_fc_request_remove_from_pending(struct spdk_nvmf_fc_request *fc_req) 401 { 402 STAILQ_REMOVE(&fc_req->hwqp->fgroup->group.pending_buf_queue, &fc_req->req, 403 spdk_nvmf_request, buf_link); 404 } 405 406 int 407 nvmf_fc_init_hwqp(struct spdk_nvmf_fc_port *fc_port, struct spdk_nvmf_fc_hwqp *hwqp) 408 { 409 char name[64]; 410 411 hwqp->fc_port = fc_port; 412 413 /* clear counters */ 414 memset(&hwqp->counters, 0, sizeof(struct spdk_nvmf_fc_errors)); 415 416 TAILQ_INIT(&hwqp->in_use_reqs); 417 TAILQ_INIT(&hwqp->sync_cbs); 418 TAILQ_INIT(&hwqp->ls_pending_queue); 419 420 snprintf(name, sizeof(name), "nvmf_fc_conn_hash:%d-%d", fc_port->port_hdl, hwqp->hwqp_id); 421 hwqp->connection_list_hash = nvmf_fc_create_hash_table(name, HWQP_CONN_TABLE_SIZE, 422 sizeof(uint64_t)); 423 if (!hwqp->connection_list_hash) { 424 SPDK_ERRLOG("Failed to create connection hash table.\n"); 425 return -ENOMEM; 426 } 427 428 snprintf(name, sizeof(name), "nvmf_fc_rpi_hash:%d-%d", fc_port->port_hdl, hwqp->hwqp_id); 429 hwqp->rport_list_hash = nvmf_fc_create_hash_table(name, HWQP_RPI_TABLE_SIZE, sizeof(uint16_t)); 430 if (!hwqp->rport_list_hash) { 431 SPDK_ERRLOG("Failed to create rpi hash table.\n"); 432 rte_hash_free(hwqp->connection_list_hash); 433 return -ENOMEM; 434 } 435 436 /* Init low level driver queues */ 437 nvmf_fc_init_q(hwqp); 438 return 0; 439 } 440 441 static struct spdk_nvmf_fc_poll_group * 442 nvmf_fc_assign_idlest_poll_group(struct spdk_nvmf_fc_hwqp *hwqp) 443 { 444 uint32_t max_count = UINT32_MAX; 445 struct spdk_nvmf_fc_poll_group *fgroup; 446 struct spdk_nvmf_fc_poll_group *ret_fgroup = NULL; 447 448 pthread_mutex_lock(&g_nvmf_ftransport->lock); 449 /* find poll group with least number of hwqp's assigned to it */ 450 TAILQ_FOREACH(fgroup, &g_nvmf_fgroups, link) { 451 if (fgroup->hwqp_count < max_count) { 452 ret_fgroup = fgroup; 453 max_count = fgroup->hwqp_count; 454 } 455 } 456 457 if (ret_fgroup) { 458 ret_fgroup->hwqp_count++; 459 hwqp->thread = ret_fgroup->group.group->thread; 460 hwqp->fgroup = ret_fgroup; 461 } 462 463 pthread_mutex_unlock(&g_nvmf_ftransport->lock); 464 465 return ret_fgroup; 466 } 467 468 bool 469 nvmf_fc_poll_group_valid(struct spdk_nvmf_fc_poll_group *fgroup) 470 { 471 struct spdk_nvmf_fc_poll_group *tmp; 472 bool rc = false; 473 474 pthread_mutex_lock(&g_nvmf_ftransport->lock); 475 TAILQ_FOREACH(tmp, &g_nvmf_fgroups, link) { 476 if (tmp == fgroup) { 477 rc = true; 478 break; 479 } 480 } 481 pthread_mutex_unlock(&g_nvmf_ftransport->lock); 482 return rc; 483 } 484 485 void 486 nvmf_fc_poll_group_add_hwqp(struct spdk_nvmf_fc_hwqp *hwqp) 487 { 488 assert(hwqp); 489 if (hwqp == NULL) { 490 SPDK_ERRLOG("Error: hwqp is NULL\n"); 491 return; 492 } 493 494 assert(g_nvmf_fgroup_count); 495 496 if (!nvmf_fc_assign_idlest_poll_group(hwqp)) { 497 SPDK_ERRLOG("Could not assign poll group for hwqp (%d)\n", hwqp->hwqp_id); 498 return; 499 } 500 501 nvmf_fc_poller_api_func(hwqp, SPDK_NVMF_FC_POLLER_API_ADD_HWQP, NULL); 502 } 503 504 static void 505 nvmf_fc_poll_group_remove_hwqp_cb(void *cb_data, enum spdk_nvmf_fc_poller_api_ret ret) 506 { 507 struct spdk_nvmf_fc_poller_api_remove_hwqp_args *args = cb_data; 508 509 if (ret == SPDK_NVMF_FC_POLLER_API_SUCCESS) { 510 SPDK_DEBUGLOG(nvmf_fc_adm_api, 511 "Remove hwqp%d from fgroup success\n", args->hwqp->hwqp_id); 512 } else { 513 SPDK_ERRLOG("Remove hwqp%d from fgroup failed.\n", args->hwqp->hwqp_id); 514 } 515 516 if (args->cb_fn) { 517 args->cb_fn(args->cb_ctx, 0); 518 } 519 520 free(args); 521 } 522 523 void 524 nvmf_fc_poll_group_remove_hwqp(struct spdk_nvmf_fc_hwqp *hwqp, 525 spdk_nvmf_fc_remove_hwqp_cb cb_fn, void *cb_ctx) 526 { 527 struct spdk_nvmf_fc_poller_api_remove_hwqp_args *args; 528 struct spdk_nvmf_fc_poll_group *tmp; 529 int rc = 0; 530 531 assert(hwqp); 532 533 SPDK_DEBUGLOG(nvmf_fc, 534 "Remove hwqp from poller: for port: %d, hwqp: %d\n", 535 hwqp->fc_port->port_hdl, hwqp->hwqp_id); 536 537 if (!hwqp->fgroup) { 538 SPDK_ERRLOG("HWQP (%d) not assigned to poll group\n", hwqp->hwqp_id); 539 } else { 540 pthread_mutex_lock(&g_nvmf_ftransport->lock); 541 TAILQ_FOREACH(tmp, &g_nvmf_fgroups, link) { 542 if (tmp == hwqp->fgroup) { 543 hwqp->fgroup->hwqp_count--; 544 break; 545 } 546 } 547 pthread_mutex_unlock(&g_nvmf_ftransport->lock); 548 549 if (tmp != hwqp->fgroup) { 550 /* Pollgroup was already removed. Dont bother. */ 551 goto done; 552 } 553 554 args = calloc(1, sizeof(struct spdk_nvmf_fc_poller_api_remove_hwqp_args)); 555 if (args == NULL) { 556 rc = -ENOMEM; 557 SPDK_ERRLOG("Failed to allocate memory for poller remove hwqp:%d\n", hwqp->hwqp_id); 558 goto done; 559 } 560 561 args->hwqp = hwqp; 562 args->cb_fn = cb_fn; 563 args->cb_ctx = cb_ctx; 564 args->cb_info.cb_func = nvmf_fc_poll_group_remove_hwqp_cb; 565 args->cb_info.cb_data = args; 566 args->cb_info.cb_thread = spdk_get_thread(); 567 568 rc = nvmf_fc_poller_api_func(hwqp, SPDK_NVMF_FC_POLLER_API_REMOVE_HWQP, args); 569 if (rc) { 570 rc = -EINVAL; 571 SPDK_ERRLOG("Remove hwqp%d from fgroup failed.\n", hwqp->hwqp_id); 572 free(args); 573 goto done; 574 } 575 return; 576 } 577 done: 578 if (cb_fn) { 579 cb_fn(cb_ctx, rc); 580 } 581 } 582 583 /* 584 * Note: This needs to be used only on main poller. 585 */ 586 static uint64_t 587 nvmf_fc_get_abts_unique_id(void) 588 { 589 static uint32_t u_id = 0; 590 591 return (uint64_t)(++u_id); 592 } 593 594 static void 595 nvmf_fc_queue_synced_cb(void *cb_data, enum spdk_nvmf_fc_poller_api_ret ret) 596 { 597 struct spdk_nvmf_fc_abts_ctx *ctx = cb_data; 598 struct spdk_nvmf_fc_poller_api_abts_recvd_args *args, *poller_arg; 599 600 ctx->hwqps_responded++; 601 602 if (ctx->hwqps_responded < ctx->num_hwqps) { 603 /* Wait for all pollers to complete. */ 604 return; 605 } 606 607 /* Free the queue sync poller args. */ 608 free(ctx->sync_poller_args); 609 610 /* Mark as queue synced */ 611 ctx->queue_synced = true; 612 613 /* Reset the ctx values */ 614 ctx->hwqps_responded = 0; 615 ctx->handled = false; 616 617 SPDK_DEBUGLOG(nvmf_fc, 618 "QueueSync(0x%lx) completed for nport: %d, rpi: 0x%x, oxid: 0x%x, rxid: 0x%x\n", 619 ctx->u_id, ctx->nport->nport_hdl, ctx->rpi, ctx->oxid, ctx->rxid); 620 621 /* Resend ABTS to pollers */ 622 args = ctx->abts_poller_args; 623 for (int i = 0; i < ctx->num_hwqps; i++) { 624 poller_arg = args + i; 625 nvmf_fc_poller_api_func(poller_arg->hwqp, 626 SPDK_NVMF_FC_POLLER_API_ABTS_RECEIVED, 627 poller_arg); 628 } 629 } 630 631 static int 632 nvmf_fc_handle_abts_notfound(struct spdk_nvmf_fc_abts_ctx *ctx) 633 { 634 struct spdk_nvmf_fc_poller_api_queue_sync_args *args, *poller_arg; 635 struct spdk_nvmf_fc_poller_api_abts_recvd_args *abts_args, *abts_poller_arg; 636 637 /* check if FC driver supports queue sync */ 638 if (!nvmf_fc_q_sync_available()) { 639 return -EPERM; 640 } 641 642 assert(ctx); 643 if (!ctx) { 644 SPDK_ERRLOG("NULL ctx pointer"); 645 return -EINVAL; 646 } 647 648 /* Reset the ctx values */ 649 ctx->hwqps_responded = 0; 650 651 args = calloc(ctx->num_hwqps, 652 sizeof(struct spdk_nvmf_fc_poller_api_queue_sync_args)); 653 if (!args) { 654 SPDK_ERRLOG("QueueSync(0x%lx) failed for nport: %d, rpi: 0x%x, oxid: 0x%x, rxid: 0x%x\n", 655 ctx->u_id, ctx->nport->nport_hdl, ctx->rpi, ctx->oxid, ctx->rxid); 656 return -ENOMEM; 657 } 658 ctx->sync_poller_args = args; 659 660 abts_args = ctx->abts_poller_args; 661 for (int i = 0; i < ctx->num_hwqps; i++) { 662 abts_poller_arg = abts_args + i; 663 poller_arg = args + i; 664 poller_arg->u_id = ctx->u_id; 665 poller_arg->hwqp = abts_poller_arg->hwqp; 666 poller_arg->cb_info.cb_func = nvmf_fc_queue_synced_cb; 667 poller_arg->cb_info.cb_data = ctx; 668 poller_arg->cb_info.cb_thread = spdk_get_thread(); 669 670 /* Send a Queue sync message to interested pollers */ 671 nvmf_fc_poller_api_func(poller_arg->hwqp, 672 SPDK_NVMF_FC_POLLER_API_QUEUE_SYNC, 673 poller_arg); 674 } 675 676 SPDK_DEBUGLOG(nvmf_fc, 677 "QueueSync(0x%lx) Sent for nport: %d, rpi: 0x%x, oxid: 0x%x, rxid: 0x%x\n", 678 ctx->u_id, ctx->nport->nport_hdl, ctx->rpi, ctx->oxid, ctx->rxid); 679 680 /* Post Marker to queue to track aborted request */ 681 nvmf_fc_issue_q_sync(ctx->ls_hwqp, ctx->u_id, ctx->fcp_rq_id); 682 683 return 0; 684 } 685 686 static void 687 nvmf_fc_abts_handled_cb(void *cb_data, enum spdk_nvmf_fc_poller_api_ret ret) 688 { 689 struct spdk_nvmf_fc_abts_ctx *ctx = cb_data; 690 struct spdk_nvmf_fc_nport *nport = NULL; 691 692 if (ret != SPDK_NVMF_FC_POLLER_API_OXID_NOT_FOUND) { 693 ctx->handled = true; 694 } 695 696 ctx->hwqps_responded++; 697 698 if (ctx->hwqps_responded < ctx->num_hwqps) { 699 /* Wait for all pollers to complete. */ 700 return; 701 } 702 703 nport = nvmf_fc_nport_find(ctx->port_hdl, ctx->nport_hdl); 704 705 if (ctx->nport != nport) { 706 /* Nport can be deleted while this abort is being 707 * processed by the pollers. 708 */ 709 SPDK_NOTICELOG("nport_%d deleted while processing ABTS frame, rpi: 0x%x, oxid: 0x%x, rxid: 0x%x\n", 710 ctx->nport_hdl, ctx->rpi, ctx->oxid, ctx->rxid); 711 } else { 712 if (!ctx->handled) { 713 /* Try syncing the queues and try one more time */ 714 if (!ctx->queue_synced && (nvmf_fc_handle_abts_notfound(ctx) == 0)) { 715 SPDK_DEBUGLOG(nvmf_fc, 716 "QueueSync(0x%lx) for nport: %d, rpi: 0x%x, oxid: 0x%x, rxid: 0x%x\n", 717 ctx->u_id, ctx->nport->nport_hdl, ctx->rpi, ctx->oxid, ctx->rxid); 718 return; 719 } else { 720 /* Send Reject */ 721 nvmf_fc_xmt_bls_rsp(&ctx->nport->fc_port->ls_queue, 722 ctx->oxid, ctx->rxid, ctx->rpi, true, 723 FCNVME_BLS_REJECT_EXP_INVALID_OXID, NULL, NULL); 724 } 725 } else { 726 /* Send Accept */ 727 nvmf_fc_xmt_bls_rsp(&ctx->nport->fc_port->ls_queue, 728 ctx->oxid, ctx->rxid, ctx->rpi, false, 729 0, NULL, NULL); 730 } 731 } 732 SPDK_NOTICELOG("BLS_%s sent for ABTS frame nport: %d, rpi: 0x%x, oxid: 0x%x, rxid: 0x%x\n", 733 (ctx->handled) ? "ACC" : "REJ", ctx->nport->nport_hdl, ctx->rpi, ctx->oxid, ctx->rxid); 734 735 free(ctx->abts_poller_args); 736 free(ctx); 737 } 738 739 void 740 nvmf_fc_handle_abts_frame(struct spdk_nvmf_fc_nport *nport, uint16_t rpi, 741 uint16_t oxid, uint16_t rxid) 742 { 743 struct spdk_nvmf_fc_abts_ctx *ctx = NULL; 744 struct spdk_nvmf_fc_poller_api_abts_recvd_args *args = NULL, *poller_arg; 745 struct spdk_nvmf_fc_association *assoc = NULL; 746 struct spdk_nvmf_fc_conn *conn = NULL; 747 uint32_t hwqp_cnt = 0; 748 bool skip_hwqp_cnt; 749 struct spdk_nvmf_fc_hwqp **hwqps = NULL; 750 uint32_t i; 751 752 SPDK_NOTICELOG("Handle ABTS frame for nport: %d, rpi: 0x%x, oxid: 0x%x, rxid: 0x%x\n", 753 nport->nport_hdl, rpi, oxid, rxid); 754 755 /* Allocate memory to track hwqp's with at least 1 active connection. */ 756 hwqps = calloc(nport->fc_port->num_io_queues, sizeof(struct spdk_nvmf_fc_hwqp *)); 757 if (hwqps == NULL) { 758 SPDK_ERRLOG("Unable to allocate temp. hwqp array for abts processing!\n"); 759 goto bls_rej; 760 } 761 762 TAILQ_FOREACH(assoc, &nport->fc_associations, link) { 763 TAILQ_FOREACH(conn, &assoc->fc_conns, assoc_link) { 764 if ((conn->rpi != rpi) || !conn->hwqp) { 765 continue; 766 } 767 768 skip_hwqp_cnt = false; 769 for (i = 0; i < hwqp_cnt; i++) { 770 if (hwqps[i] == conn->hwqp) { 771 /* Skip. This is already present */ 772 skip_hwqp_cnt = true; 773 break; 774 } 775 } 776 if (!skip_hwqp_cnt) { 777 assert(hwqp_cnt < nport->fc_port->num_io_queues); 778 hwqps[hwqp_cnt] = conn->hwqp; 779 hwqp_cnt++; 780 } 781 } 782 } 783 784 if (!hwqp_cnt) { 785 goto bls_rej; 786 } 787 788 args = calloc(hwqp_cnt, 789 sizeof(struct spdk_nvmf_fc_poller_api_abts_recvd_args)); 790 if (!args) { 791 goto bls_rej; 792 } 793 794 ctx = calloc(1, sizeof(struct spdk_nvmf_fc_abts_ctx)); 795 if (!ctx) { 796 goto bls_rej; 797 } 798 ctx->rpi = rpi; 799 ctx->oxid = oxid; 800 ctx->rxid = rxid; 801 ctx->nport = nport; 802 ctx->nport_hdl = nport->nport_hdl; 803 ctx->port_hdl = nport->fc_port->port_hdl; 804 ctx->num_hwqps = hwqp_cnt; 805 ctx->ls_hwqp = &nport->fc_port->ls_queue; 806 ctx->fcp_rq_id = nport->fc_port->fcp_rq_id; 807 ctx->abts_poller_args = args; 808 809 /* Get a unique context for this ABTS */ 810 ctx->u_id = nvmf_fc_get_abts_unique_id(); 811 812 for (i = 0; i < hwqp_cnt; i++) { 813 poller_arg = args + i; 814 poller_arg->hwqp = hwqps[i]; 815 poller_arg->cb_info.cb_func = nvmf_fc_abts_handled_cb; 816 poller_arg->cb_info.cb_data = ctx; 817 poller_arg->cb_info.cb_thread = spdk_get_thread(); 818 poller_arg->ctx = ctx; 819 820 nvmf_fc_poller_api_func(poller_arg->hwqp, 821 SPDK_NVMF_FC_POLLER_API_ABTS_RECEIVED, 822 poller_arg); 823 } 824 825 free(hwqps); 826 827 return; 828 bls_rej: 829 free(args); 830 free(hwqps); 831 832 /* Send Reject */ 833 nvmf_fc_xmt_bls_rsp(&nport->fc_port->ls_queue, oxid, rxid, rpi, 834 true, FCNVME_BLS_REJECT_EXP_NOINFO, NULL, NULL); 835 SPDK_NOTICELOG("BLS_RJT for ABTS frame for nport: %d, rpi: 0x%x, oxid: 0x%x, rxid: 0x%x\n", 836 nport->nport_hdl, rpi, oxid, rxid); 837 return; 838 } 839 840 /*** Accessor functions for the FC structures - BEGIN */ 841 /* 842 * Returns true if the port is in offline state. 843 */ 844 bool 845 nvmf_fc_port_is_offline(struct spdk_nvmf_fc_port *fc_port) 846 { 847 if (fc_port && (fc_port->hw_port_status == SPDK_FC_PORT_OFFLINE)) { 848 return true; 849 } 850 851 return false; 852 } 853 854 /* 855 * Returns true if the port is in online state. 856 */ 857 bool 858 nvmf_fc_port_is_online(struct spdk_nvmf_fc_port *fc_port) 859 { 860 if (fc_port && (fc_port->hw_port_status == SPDK_FC_PORT_ONLINE)) { 861 return true; 862 } 863 864 return false; 865 } 866 867 int 868 nvmf_fc_port_set_online(struct spdk_nvmf_fc_port *fc_port) 869 { 870 if (fc_port && (fc_port->hw_port_status != SPDK_FC_PORT_ONLINE)) { 871 fc_port->hw_port_status = SPDK_FC_PORT_ONLINE; 872 return 0; 873 } 874 875 return -EPERM; 876 } 877 878 int 879 nvmf_fc_port_set_offline(struct spdk_nvmf_fc_port *fc_port) 880 { 881 if (fc_port && (fc_port->hw_port_status != SPDK_FC_PORT_OFFLINE)) { 882 fc_port->hw_port_status = SPDK_FC_PORT_OFFLINE; 883 return 0; 884 } 885 886 return -EPERM; 887 } 888 889 int 890 nvmf_fc_hwqp_set_online(struct spdk_nvmf_fc_hwqp *hwqp) 891 { 892 if (hwqp && (hwqp->state != SPDK_FC_HWQP_ONLINE)) { 893 hwqp->state = SPDK_FC_HWQP_ONLINE; 894 /* reset some queue counters */ 895 hwqp->num_conns = 0; 896 return nvmf_fc_set_q_online_state(hwqp, true); 897 } 898 899 return -EPERM; 900 } 901 902 int 903 nvmf_fc_hwqp_set_offline(struct spdk_nvmf_fc_hwqp *hwqp) 904 { 905 if (hwqp && (hwqp->state != SPDK_FC_HWQP_OFFLINE)) { 906 hwqp->state = SPDK_FC_HWQP_OFFLINE; 907 return nvmf_fc_set_q_online_state(hwqp, false); 908 } 909 910 return -EPERM; 911 } 912 913 void 914 nvmf_fc_port_add(struct spdk_nvmf_fc_port *fc_port) 915 { 916 TAILQ_INSERT_TAIL(&g_spdk_nvmf_fc_port_list, fc_port, link); 917 918 /* 919 * Let LLD add the port to its list. 920 */ 921 nvmf_fc_lld_port_add(fc_port); 922 } 923 924 static void 925 nvmf_fc_port_remove(struct spdk_nvmf_fc_port *fc_port) 926 { 927 TAILQ_REMOVE(&g_spdk_nvmf_fc_port_list, fc_port, link); 928 929 /* 930 * Let LLD remove the port from its list. 931 */ 932 nvmf_fc_lld_port_remove(fc_port); 933 } 934 935 struct spdk_nvmf_fc_port * 936 nvmf_fc_port_lookup(uint8_t port_hdl) 937 { 938 struct spdk_nvmf_fc_port *fc_port = NULL; 939 940 TAILQ_FOREACH(fc_port, &g_spdk_nvmf_fc_port_list, link) { 941 if (fc_port->port_hdl == port_hdl) { 942 return fc_port; 943 } 944 } 945 return NULL; 946 } 947 948 uint32_t 949 nvmf_fc_get_prli_service_params(void) 950 { 951 return (SPDK_NVMF_FC_DISCOVERY_SERVICE | SPDK_NVMF_FC_TARGET_FUNCTION); 952 } 953 954 int 955 nvmf_fc_port_add_nport(struct spdk_nvmf_fc_port *fc_port, 956 struct spdk_nvmf_fc_nport *nport) 957 { 958 if (fc_port) { 959 TAILQ_INSERT_TAIL(&fc_port->nport_list, nport, link); 960 fc_port->num_nports++; 961 return 0; 962 } 963 964 return -EINVAL; 965 } 966 967 int 968 nvmf_fc_port_remove_nport(struct spdk_nvmf_fc_port *fc_port, 969 struct spdk_nvmf_fc_nport *nport) 970 { 971 if (fc_port && nport) { 972 TAILQ_REMOVE(&fc_port->nport_list, nport, link); 973 fc_port->num_nports--; 974 return 0; 975 } 976 977 return -EINVAL; 978 } 979 980 static struct spdk_nvmf_fc_nport * 981 nvmf_fc_nport_hdl_lookup(struct spdk_nvmf_fc_port *fc_port, uint16_t nport_hdl) 982 { 983 struct spdk_nvmf_fc_nport *fc_nport = NULL; 984 985 TAILQ_FOREACH(fc_nport, &fc_port->nport_list, link) { 986 if (fc_nport->nport_hdl == nport_hdl) { 987 return fc_nport; 988 } 989 } 990 991 return NULL; 992 } 993 994 struct spdk_nvmf_fc_nport * 995 nvmf_fc_nport_find(uint8_t port_hdl, uint16_t nport_hdl) 996 { 997 struct spdk_nvmf_fc_port *fc_port = NULL; 998 999 fc_port = nvmf_fc_port_lookup(port_hdl); 1000 if (fc_port) { 1001 return nvmf_fc_nport_hdl_lookup(fc_port, nport_hdl); 1002 } 1003 1004 return NULL; 1005 } 1006 1007 static inline int 1008 nvmf_fc_hwqp_find_nport_and_rport(struct spdk_nvmf_fc_hwqp *hwqp, 1009 uint32_t d_id, struct spdk_nvmf_fc_nport **nport, 1010 uint32_t s_id, struct spdk_nvmf_fc_remote_port_info **rport) 1011 { 1012 struct spdk_nvmf_fc_nport *n_port; 1013 struct spdk_nvmf_fc_remote_port_info *r_port; 1014 1015 assert(hwqp); 1016 if (hwqp == NULL) { 1017 SPDK_ERRLOG("Error: hwqp is NULL\n"); 1018 return -EINVAL; 1019 } 1020 assert(nport); 1021 if (nport == NULL) { 1022 SPDK_ERRLOG("Error: nport is NULL\n"); 1023 return -EINVAL; 1024 } 1025 assert(rport); 1026 if (rport == NULL) { 1027 SPDK_ERRLOG("Error: rport is NULL\n"); 1028 return -EINVAL; 1029 } 1030 1031 TAILQ_FOREACH(n_port, &hwqp->fc_port->nport_list, link) { 1032 if (n_port->d_id == d_id) { 1033 TAILQ_FOREACH(r_port, &n_port->rem_port_list, link) { 1034 if (r_port->s_id == s_id) { 1035 *nport = n_port; 1036 *rport = r_port; 1037 return 0; 1038 } 1039 } 1040 break; 1041 } 1042 } 1043 1044 return -ENOENT; 1045 } 1046 1047 /* Returns true if the Nport is empty of all rem_ports */ 1048 bool 1049 nvmf_fc_nport_has_no_rport(struct spdk_nvmf_fc_nport *nport) 1050 { 1051 if (nport && TAILQ_EMPTY(&nport->rem_port_list)) { 1052 assert(nport->rport_count == 0); 1053 return true; 1054 } else { 1055 return false; 1056 } 1057 } 1058 1059 int 1060 nvmf_fc_nport_set_state(struct spdk_nvmf_fc_nport *nport, 1061 enum spdk_nvmf_fc_object_state state) 1062 { 1063 if (nport) { 1064 nport->nport_state = state; 1065 return 0; 1066 } else { 1067 return -EINVAL; 1068 } 1069 } 1070 1071 bool 1072 nvmf_fc_nport_add_rem_port(struct spdk_nvmf_fc_nport *nport, 1073 struct spdk_nvmf_fc_remote_port_info *rem_port) 1074 { 1075 if (nport && rem_port) { 1076 TAILQ_INSERT_TAIL(&nport->rem_port_list, rem_port, link); 1077 nport->rport_count++; 1078 return 0; 1079 } else { 1080 return -EINVAL; 1081 } 1082 } 1083 1084 bool 1085 nvmf_fc_nport_remove_rem_port(struct spdk_nvmf_fc_nport *nport, 1086 struct spdk_nvmf_fc_remote_port_info *rem_port) 1087 { 1088 if (nport && rem_port) { 1089 TAILQ_REMOVE(&nport->rem_port_list, rem_port, link); 1090 nport->rport_count--; 1091 return 0; 1092 } else { 1093 return -EINVAL; 1094 } 1095 } 1096 1097 int 1098 nvmf_fc_rport_set_state(struct spdk_nvmf_fc_remote_port_info *rport, 1099 enum spdk_nvmf_fc_object_state state) 1100 { 1101 if (rport) { 1102 rport->rport_state = state; 1103 return 0; 1104 } else { 1105 return -EINVAL; 1106 } 1107 } 1108 int 1109 nvmf_fc_assoc_set_state(struct spdk_nvmf_fc_association *assoc, 1110 enum spdk_nvmf_fc_object_state state) 1111 { 1112 if (assoc) { 1113 assoc->assoc_state = state; 1114 return 0; 1115 } else { 1116 return -EINVAL; 1117 } 1118 } 1119 1120 static struct spdk_nvmf_fc_association * 1121 nvmf_ctrlr_get_fc_assoc(struct spdk_nvmf_ctrlr *ctrlr) 1122 { 1123 struct spdk_nvmf_qpair *qpair = ctrlr->admin_qpair; 1124 struct spdk_nvmf_fc_conn *fc_conn; 1125 1126 if (!qpair) { 1127 SPDK_ERRLOG("Controller %d has no associations\n", ctrlr->cntlid); 1128 return NULL; 1129 } 1130 1131 fc_conn = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_fc_conn, qpair); 1132 1133 return fc_conn->fc_assoc; 1134 } 1135 1136 bool 1137 nvmf_ctrlr_is_on_nport(uint8_t port_hdl, uint16_t nport_hdl, 1138 struct spdk_nvmf_ctrlr *ctrlr) 1139 { 1140 struct spdk_nvmf_fc_nport *fc_nport = NULL; 1141 struct spdk_nvmf_fc_association *assoc = NULL; 1142 1143 if (!ctrlr) { 1144 return false; 1145 } 1146 1147 fc_nport = nvmf_fc_nport_find(port_hdl, nport_hdl); 1148 if (!fc_nport) { 1149 return false; 1150 } 1151 1152 assoc = nvmf_ctrlr_get_fc_assoc(ctrlr); 1153 if (assoc && assoc->tgtport == fc_nport) { 1154 SPDK_DEBUGLOG(nvmf_fc, 1155 "Controller: %d corresponding to association: %p(%lu:%d) is on port: %d nport: %d\n", 1156 ctrlr->cntlid, assoc, assoc->assoc_id, assoc->assoc_state, port_hdl, 1157 nport_hdl); 1158 return true; 1159 } 1160 return false; 1161 } 1162 1163 static void 1164 nvmf_fc_release_ls_rqst(struct spdk_nvmf_fc_hwqp *hwqp, 1165 struct spdk_nvmf_fc_ls_rqst *ls_rqst) 1166 { 1167 assert(ls_rqst); 1168 1169 TAILQ_REMOVE(&hwqp->ls_pending_queue, ls_rqst, ls_pending_link); 1170 1171 /* Return buffer to chip */ 1172 nvmf_fc_rqpair_buffer_release(hwqp, ls_rqst->rqstbuf.buf_index); 1173 } 1174 1175 static int 1176 nvmf_fc_delete_ls_pending(struct spdk_nvmf_fc_hwqp *hwqp, 1177 struct spdk_nvmf_fc_nport *nport, 1178 struct spdk_nvmf_fc_remote_port_info *rport) 1179 { 1180 struct spdk_nvmf_fc_ls_rqst *ls_rqst = NULL, *tmp; 1181 int num_deleted = 0; 1182 1183 assert(hwqp); 1184 assert(nport); 1185 assert(rport); 1186 1187 TAILQ_FOREACH_SAFE(ls_rqst, &hwqp->ls_pending_queue, ls_pending_link, tmp) { 1188 if ((ls_rqst->d_id == nport->d_id) && (ls_rqst->s_id == rport->s_id)) { 1189 num_deleted++; 1190 nvmf_fc_release_ls_rqst(hwqp, ls_rqst); 1191 } 1192 } 1193 return num_deleted; 1194 } 1195 1196 static void 1197 nvmf_fc_req_bdev_abort(void *arg1) 1198 { 1199 struct spdk_nvmf_fc_request *fc_req = arg1; 1200 struct spdk_nvmf_ctrlr *ctrlr = fc_req->req.qpair->ctrlr; 1201 int i; 1202 1203 /* Initial release - we don't have to abort Admin Queue or 1204 * Fabric commands. The AQ commands supported at this time are 1205 * Get-Log-Page, 1206 * Identify 1207 * Set Features 1208 * Get Features 1209 * AER -> Special case and handled differently. 1210 * Every one of the above Admin commands (except AER) run 1211 * to completion and so an Abort of such commands doesn't 1212 * make sense. 1213 */ 1214 /* The Fabric commands supported are 1215 * Property Set 1216 * Property Get 1217 * Connect -> Special case (async. handling). Not sure how to 1218 * handle at this point. Let it run to completion. 1219 */ 1220 if (ctrlr) { 1221 for (i = 0; i < SPDK_NVMF_MAX_ASYNC_EVENTS; i++) { 1222 if (ctrlr->aer_req[i] == &fc_req->req) { 1223 SPDK_NOTICELOG("Abort AER request\n"); 1224 nvmf_qpair_free_aer(fc_req->req.qpair); 1225 } 1226 } 1227 } 1228 } 1229 1230 void 1231 nvmf_fc_request_abort_complete(void *arg1) 1232 { 1233 struct spdk_nvmf_fc_request *fc_req = 1234 (struct spdk_nvmf_fc_request *)arg1; 1235 struct spdk_nvmf_fc_hwqp *hwqp = fc_req->hwqp; 1236 struct spdk_nvmf_fc_caller_ctx *ctx = NULL, *tmp = NULL; 1237 TAILQ_HEAD(, spdk_nvmf_fc_caller_ctx) abort_cbs; 1238 1239 /* Make a copy of the cb list from fc_req */ 1240 TAILQ_INIT(&abort_cbs); 1241 TAILQ_SWAP(&abort_cbs, &fc_req->abort_cbs, spdk_nvmf_fc_caller_ctx, link); 1242 1243 SPDK_NOTICELOG("FC Request(%p) in state :%s aborted\n", fc_req, 1244 fc_req_state_strs[fc_req->state]); 1245 1246 _nvmf_fc_request_free(fc_req); 1247 1248 /* Request abort completed. Notify all the callbacks */ 1249 TAILQ_FOREACH_SAFE(ctx, &abort_cbs, link, tmp) { 1250 /* Notify */ 1251 ctx->cb(hwqp, 0, ctx->cb_args); 1252 /* Remove */ 1253 TAILQ_REMOVE(&abort_cbs, ctx, link); 1254 /* free */ 1255 free(ctx); 1256 } 1257 } 1258 1259 void 1260 nvmf_fc_request_abort(struct spdk_nvmf_fc_request *fc_req, bool send_abts, 1261 spdk_nvmf_fc_caller_cb cb, void *cb_args) 1262 { 1263 struct spdk_nvmf_fc_caller_ctx *ctx = NULL; 1264 bool kill_req = false; 1265 1266 /* Add the cb to list */ 1267 if (cb) { 1268 ctx = calloc(1, sizeof(struct spdk_nvmf_fc_caller_ctx)); 1269 if (!ctx) { 1270 SPDK_ERRLOG("ctx alloc failed.\n"); 1271 return; 1272 } 1273 ctx->cb = cb; 1274 ctx->cb_args = cb_args; 1275 1276 TAILQ_INSERT_TAIL(&fc_req->abort_cbs, ctx, link); 1277 } 1278 1279 if (!fc_req->is_aborted) { 1280 /* Increment aborted command counter */ 1281 fc_req->hwqp->counters.num_aborted++; 1282 } 1283 1284 /* If port is dead, skip abort wqe */ 1285 kill_req = nvmf_fc_is_port_dead(fc_req->hwqp); 1286 if (kill_req && nvmf_fc_req_in_xfer(fc_req)) { 1287 fc_req->is_aborted = true; 1288 goto complete; 1289 } 1290 1291 /* Check if the request is already marked for deletion */ 1292 if (fc_req->is_aborted) { 1293 return; 1294 } 1295 1296 /* Mark request as aborted */ 1297 fc_req->is_aborted = true; 1298 1299 /* If xchg is allocated, then save if we need to send abts or not. */ 1300 if (fc_req->xchg) { 1301 fc_req->xchg->send_abts = send_abts; 1302 fc_req->xchg->aborted = true; 1303 } 1304 1305 switch (fc_req->state) { 1306 case SPDK_NVMF_FC_REQ_BDEV_ABORTED: 1307 /* Aborted by backend */ 1308 goto complete; 1309 1310 case SPDK_NVMF_FC_REQ_READ_BDEV: 1311 case SPDK_NVMF_FC_REQ_WRITE_BDEV: 1312 case SPDK_NVMF_FC_REQ_NONE_BDEV: 1313 /* Notify bdev */ 1314 spdk_thread_send_msg(fc_req->hwqp->thread, 1315 nvmf_fc_req_bdev_abort, (void *)fc_req); 1316 break; 1317 1318 case SPDK_NVMF_FC_REQ_READ_XFER: 1319 case SPDK_NVMF_FC_REQ_READ_RSP: 1320 case SPDK_NVMF_FC_REQ_WRITE_XFER: 1321 case SPDK_NVMF_FC_REQ_WRITE_RSP: 1322 case SPDK_NVMF_FC_REQ_NONE_RSP: 1323 /* Notify HBA to abort this exchange */ 1324 nvmf_fc_issue_abort(fc_req->hwqp, fc_req->xchg, NULL, NULL); 1325 break; 1326 1327 case SPDK_NVMF_FC_REQ_PENDING: 1328 /* Remove from pending */ 1329 nvmf_fc_request_remove_from_pending(fc_req); 1330 goto complete; 1331 case SPDK_NVMF_FC_REQ_FUSED_WAITING: 1332 TAILQ_REMOVE(&fc_req->fc_conn->fused_waiting_queue, fc_req, fused_link); 1333 goto complete; 1334 default: 1335 SPDK_ERRLOG("Request in invalid state.\n"); 1336 goto complete; 1337 } 1338 1339 return; 1340 complete: 1341 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_ABORTED); 1342 nvmf_fc_poller_api_func(fc_req->hwqp, SPDK_NVMF_FC_POLLER_API_REQ_ABORT_COMPLETE, 1343 (void *)fc_req); 1344 } 1345 1346 static int 1347 nvmf_fc_request_alloc_buffers(struct spdk_nvmf_fc_request *fc_req) 1348 { 1349 uint32_t length = fc_req->req.length; 1350 struct spdk_nvmf_fc_poll_group *fgroup = fc_req->hwqp->fgroup; 1351 struct spdk_nvmf_transport_poll_group *group = &fgroup->group; 1352 struct spdk_nvmf_transport *transport = group->transport; 1353 1354 if (spdk_nvmf_request_get_buffers(&fc_req->req, group, transport, length)) { 1355 return -ENOMEM; 1356 } 1357 1358 return 0; 1359 } 1360 1361 static int 1362 nvmf_fc_request_execute(struct spdk_nvmf_fc_request *fc_req) 1363 { 1364 /* Allocate an XCHG if we dont use send frame for this command. */ 1365 if (!nvmf_fc_use_send_frame(fc_req)) { 1366 fc_req->xchg = nvmf_fc_get_xri(fc_req->hwqp); 1367 if (!fc_req->xchg) { 1368 fc_req->hwqp->counters.no_xchg++; 1369 return -EAGAIN; 1370 } 1371 } 1372 1373 if (fc_req->req.length) { 1374 if (nvmf_fc_request_alloc_buffers(fc_req) < 0) { 1375 fc_req->hwqp->counters.buf_alloc_err++; 1376 if (fc_req->xchg) { 1377 nvmf_fc_put_xchg(fc_req->hwqp, fc_req->xchg); 1378 fc_req->xchg = NULL; 1379 } 1380 return -EAGAIN; 1381 } 1382 } 1383 1384 if (fc_req->req.xfer == SPDK_NVME_DATA_HOST_TO_CONTROLLER) { 1385 SPDK_DEBUGLOG(nvmf_fc, "WRITE CMD.\n"); 1386 1387 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_WRITE_XFER); 1388 1389 if (nvmf_fc_recv_data(fc_req)) { 1390 /* Dropped return success to caller */ 1391 fc_req->hwqp->counters.unexpected_err++; 1392 _nvmf_fc_request_free(fc_req); 1393 } 1394 } else { 1395 SPDK_DEBUGLOG(nvmf_fc, "READ/NONE CMD\n"); 1396 1397 if (fc_req->req.xfer == SPDK_NVME_DATA_CONTROLLER_TO_HOST) { 1398 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_READ_BDEV); 1399 } else { 1400 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_NONE_BDEV); 1401 } 1402 spdk_nvmf_request_exec(&fc_req->req); 1403 } 1404 1405 return 0; 1406 } 1407 1408 static void 1409 nvmf_fc_set_vmid_priority(struct spdk_nvmf_fc_request *fc_req, 1410 struct spdk_nvmf_fc_frame_hdr *fchdr) 1411 { 1412 uint8_t df_ctl = fchdr->df_ctl; 1413 uint32_t f_ctl = fchdr->f_ctl; 1414 1415 /* VMID */ 1416 if (df_ctl & FCNVME_D_FCTL_DEVICE_HDR_16_MASK) { 1417 struct spdk_nvmf_fc_vm_header *vhdr; 1418 uint32_t vmhdr_offset = 0; 1419 1420 if (df_ctl & FCNVME_D_FCTL_ESP_HDR_MASK) { 1421 vmhdr_offset += FCNVME_D_FCTL_ESP_HDR_SIZE; 1422 } 1423 1424 if (df_ctl & FCNVME_D_FCTL_NETWORK_HDR_MASK) { 1425 vmhdr_offset += FCNVME_D_FCTL_NETWORK_HDR_SIZE; 1426 } 1427 1428 vhdr = (struct spdk_nvmf_fc_vm_header *)((char *)fchdr + 1429 sizeof(struct spdk_nvmf_fc_frame_hdr) + vmhdr_offset); 1430 fc_req->app_id = from_be32(&vhdr->src_vmid); 1431 } 1432 1433 /* Priority */ 1434 if ((from_be32(&f_ctl) >> 8) & FCNVME_F_CTL_PRIORITY_ENABLE) { 1435 fc_req->csctl = fchdr->cs_ctl; 1436 } 1437 } 1438 1439 static int 1440 nvmf_fc_hwqp_handle_request(struct spdk_nvmf_fc_hwqp *hwqp, struct spdk_nvmf_fc_frame_hdr *frame, 1441 struct spdk_nvmf_fc_buffer_desc *buffer, uint32_t plen) 1442 { 1443 uint16_t cmnd_len; 1444 uint64_t rqst_conn_id; 1445 struct spdk_nvmf_fc_request *fc_req = NULL; 1446 struct spdk_nvmf_fc_cmnd_iu *cmd_iu = NULL; 1447 struct spdk_nvmf_fc_conn *fc_conn = NULL; 1448 enum spdk_nvme_data_transfer xfer; 1449 uint32_t s_id, d_id; 1450 1451 s_id = (uint32_t)frame->s_id; 1452 d_id = (uint32_t)frame->d_id; 1453 s_id = from_be32(&s_id) >> 8; 1454 d_id = from_be32(&d_id) >> 8; 1455 1456 cmd_iu = buffer->virt; 1457 cmnd_len = cmd_iu->cmnd_iu_len; 1458 cmnd_len = from_be16(&cmnd_len); 1459 1460 /* check for a valid cmnd_iu format */ 1461 if ((cmd_iu->fc_id != FCNVME_CMND_IU_FC_ID) || 1462 (cmd_iu->scsi_id != FCNVME_CMND_IU_SCSI_ID) || 1463 (cmnd_len != sizeof(struct spdk_nvmf_fc_cmnd_iu) / 4)) { 1464 SPDK_ERRLOG("IU CMD error\n"); 1465 hwqp->counters.nvme_cmd_iu_err++; 1466 return -ENXIO; 1467 } 1468 1469 xfer = spdk_nvme_opc_get_data_transfer(cmd_iu->flags); 1470 if (xfer == SPDK_NVME_DATA_BIDIRECTIONAL) { 1471 SPDK_ERRLOG("IU CMD xfer error\n"); 1472 hwqp->counters.nvme_cmd_xfer_err++; 1473 return -EPERM; 1474 } 1475 1476 rqst_conn_id = from_be64(&cmd_iu->conn_id); 1477 1478 if (rte_hash_lookup_data(hwqp->connection_list_hash, 1479 (void *)&rqst_conn_id, (void **)&fc_conn) < 0) { 1480 SPDK_ERRLOG("IU CMD conn(%ld) invalid\n", rqst_conn_id); 1481 hwqp->counters.invalid_conn_err++; 1482 return -ENODEV; 1483 } 1484 1485 /* Validate s_id and d_id */ 1486 if (s_id != fc_conn->s_id) { 1487 hwqp->counters.rport_invalid++; 1488 SPDK_ERRLOG("Frame s_id invalid for connection %ld\n", rqst_conn_id); 1489 return -ENODEV; 1490 } 1491 1492 if (d_id != fc_conn->d_id) { 1493 hwqp->counters.nport_invalid++; 1494 SPDK_ERRLOG("Frame d_id invalid for connection %ld\n", rqst_conn_id); 1495 return -ENODEV; 1496 } 1497 1498 /* If association/connection is being deleted - return */ 1499 if (fc_conn->fc_assoc->assoc_state != SPDK_NVMF_FC_OBJECT_CREATED) { 1500 SPDK_ERRLOG("Association %ld state = %d not valid\n", 1501 fc_conn->fc_assoc->assoc_id, fc_conn->fc_assoc->assoc_state); 1502 return -EACCES; 1503 } 1504 1505 if (fc_conn->conn_state != SPDK_NVMF_FC_OBJECT_CREATED) { 1506 SPDK_ERRLOG("Connection %ld state = %d not valid\n", 1507 rqst_conn_id, fc_conn->conn_state); 1508 return -EACCES; 1509 } 1510 1511 if (!spdk_nvmf_qpair_is_active(&fc_conn->qpair)) { 1512 SPDK_ERRLOG("Connection %ld qpair state = %d not valid\n", 1513 rqst_conn_id, fc_conn->qpair.state); 1514 return -EACCES; 1515 } 1516 1517 /* Make sure xfer len is according to mdts */ 1518 if (from_be32(&cmd_iu->data_len) > 1519 hwqp->fgroup->group.transport->opts.max_io_size) { 1520 SPDK_ERRLOG("IO length requested is greater than MDTS\n"); 1521 return -EINVAL; 1522 } 1523 1524 /* allocate a request buffer */ 1525 fc_req = nvmf_fc_conn_alloc_fc_request(fc_conn); 1526 if (fc_req == NULL) { 1527 return -ENOMEM; 1528 } 1529 1530 fc_req->req.length = from_be32(&cmd_iu->data_len); 1531 fc_req->req.qpair = &fc_conn->qpair; 1532 memcpy(&fc_req->cmd, &cmd_iu->cmd, sizeof(union nvmf_h2c_msg)); 1533 fc_req->req.cmd = (union nvmf_h2c_msg *)&fc_req->cmd; 1534 fc_req->req.rsp = (union nvmf_c2h_msg *)&fc_req->ersp.rsp; 1535 fc_req->oxid = frame->ox_id; 1536 fc_req->oxid = from_be16(&fc_req->oxid); 1537 fc_req->rpi = fc_conn->rpi; 1538 fc_req->poller_lcore = hwqp->lcore_id; 1539 fc_req->poller_thread = hwqp->thread; 1540 fc_req->hwqp = hwqp; 1541 fc_req->fc_conn = fc_conn; 1542 fc_req->req.xfer = xfer; 1543 fc_req->s_id = s_id; 1544 fc_req->d_id = d_id; 1545 fc_req->csn = from_be32(&cmd_iu->cmnd_seq_num); 1546 nvmf_fc_set_vmid_priority(fc_req, frame); 1547 1548 nvmf_fc_record_req_trace_point(fc_req, SPDK_NVMF_FC_REQ_INIT); 1549 1550 if (!STAILQ_EMPTY(&hwqp->fgroup->group.pending_buf_queue) || nvmf_fc_request_execute(fc_req)) { 1551 STAILQ_INSERT_TAIL(&hwqp->fgroup->group.pending_buf_queue, &fc_req->req, buf_link); 1552 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_PENDING); 1553 } 1554 1555 return 0; 1556 } 1557 1558 /* 1559 * These functions are called from the FC LLD 1560 */ 1561 1562 void 1563 _nvmf_fc_request_free(struct spdk_nvmf_fc_request *fc_req) 1564 { 1565 struct spdk_nvmf_fc_hwqp *hwqp; 1566 struct spdk_nvmf_transport_poll_group *group; 1567 1568 if (!fc_req) { 1569 return; 1570 } 1571 hwqp = fc_req->hwqp; 1572 1573 if (fc_req->xchg) { 1574 nvmf_fc_put_xchg(hwqp, fc_req->xchg); 1575 fc_req->xchg = NULL; 1576 } 1577 1578 /* Release IO buffers */ 1579 if (fc_req->req.data_from_pool) { 1580 group = &hwqp->fgroup->group; 1581 spdk_nvmf_request_free_buffers(&fc_req->req, group, 1582 group->transport); 1583 } 1584 fc_req->req.iovcnt = 0; 1585 1586 /* Free Fc request */ 1587 nvmf_fc_conn_free_fc_request(fc_req->fc_conn, fc_req); 1588 } 1589 1590 void 1591 nvmf_fc_request_set_state(struct spdk_nvmf_fc_request *fc_req, 1592 enum spdk_nvmf_fc_request_state state) 1593 { 1594 assert(fc_req->magic != 0xDEADBEEF); 1595 1596 SPDK_DEBUGLOG(nvmf_fc, 1597 "FC Request(%p):\n\tState Old:%s New:%s\n", fc_req, 1598 nvmf_fc_request_get_state_str(fc_req->state), 1599 nvmf_fc_request_get_state_str(state)); 1600 nvmf_fc_record_req_trace_point(fc_req, state); 1601 fc_req->state = state; 1602 } 1603 1604 char * 1605 nvmf_fc_request_get_state_str(int state) 1606 { 1607 static char *unk_str = "unknown"; 1608 1609 return (state >= 0 && state < (int)(sizeof(fc_req_state_strs) / sizeof(char *)) ? 1610 fc_req_state_strs[state] : unk_str); 1611 } 1612 1613 int 1614 nvmf_fc_hwqp_process_frame(struct spdk_nvmf_fc_hwqp *hwqp, 1615 uint32_t buff_idx, 1616 struct spdk_nvmf_fc_frame_hdr *frame, 1617 struct spdk_nvmf_fc_buffer_desc *buffer, 1618 uint32_t plen) 1619 { 1620 int rc = 0; 1621 uint32_t s_id, d_id; 1622 struct spdk_nvmf_fc_nport *nport = NULL; 1623 struct spdk_nvmf_fc_remote_port_info *rport = NULL; 1624 1625 s_id = (uint32_t)frame->s_id; 1626 d_id = (uint32_t)frame->d_id; 1627 s_id = from_be32(&s_id) >> 8; 1628 d_id = from_be32(&d_id) >> 8; 1629 1630 SPDK_DEBUGLOG(nvmf_fc, 1631 "Process NVME frame s_id:0x%x d_id:0x%x oxid:0x%x rxid:0x%x.\n", 1632 s_id, d_id, 1633 ((frame->ox_id << 8) & 0xff00) | ((frame->ox_id >> 8) & 0xff), 1634 ((frame->rx_id << 8) & 0xff00) | ((frame->rx_id >> 8) & 0xff)); 1635 1636 if ((frame->r_ctl == FCNVME_R_CTL_LS_REQUEST) && 1637 (frame->type == FCNVME_TYPE_NVMF_DATA)) { 1638 struct spdk_nvmf_fc_rq_buf_ls_request *req_buf = buffer->virt; 1639 struct spdk_nvmf_fc_ls_rqst *ls_rqst; 1640 1641 SPDK_DEBUGLOG(nvmf_fc, "Process LS NVME frame\n"); 1642 1643 rc = nvmf_fc_hwqp_find_nport_and_rport(hwqp, d_id, &nport, s_id, &rport); 1644 if (rc) { 1645 if (nport == NULL) { 1646 SPDK_ERRLOG("Nport not found. Dropping\n"); 1647 /* increment invalid nport counter */ 1648 hwqp->counters.nport_invalid++; 1649 } else if (rport == NULL) { 1650 SPDK_ERRLOG("Rport not found. Dropping\n"); 1651 /* increment invalid rport counter */ 1652 hwqp->counters.rport_invalid++; 1653 } 1654 return rc; 1655 } 1656 1657 if (nport->nport_state != SPDK_NVMF_FC_OBJECT_CREATED || 1658 rport->rport_state != SPDK_NVMF_FC_OBJECT_CREATED) { 1659 SPDK_ERRLOG("%s state not created. Dropping\n", 1660 nport->nport_state != SPDK_NVMF_FC_OBJECT_CREATED ? 1661 "Nport" : "Rport"); 1662 return -EACCES; 1663 } 1664 1665 /* Use the RQ buffer for holding LS request. */ 1666 ls_rqst = (struct spdk_nvmf_fc_ls_rqst *)&req_buf->ls_rqst; 1667 1668 /* Fill in the LS request structure */ 1669 ls_rqst->rqstbuf.virt = (void *)&req_buf->rqst; 1670 ls_rqst->rqstbuf.phys = buffer->phys + 1671 offsetof(struct spdk_nvmf_fc_rq_buf_ls_request, rqst); 1672 ls_rqst->rqstbuf.buf_index = buff_idx; 1673 ls_rqst->rqst_len = plen; 1674 1675 ls_rqst->rspbuf.virt = (void *)&req_buf->resp; 1676 ls_rqst->rspbuf.phys = buffer->phys + 1677 offsetof(struct spdk_nvmf_fc_rq_buf_ls_request, resp); 1678 ls_rqst->rsp_len = FCNVME_MAX_LS_RSP_SIZE; 1679 1680 ls_rqst->private_data = (void *)hwqp; 1681 ls_rqst->rpi = rport->rpi; 1682 ls_rqst->oxid = (uint16_t)frame->ox_id; 1683 ls_rqst->oxid = from_be16(&ls_rqst->oxid); 1684 ls_rqst->s_id = s_id; 1685 ls_rqst->d_id = d_id; 1686 ls_rqst->nport = nport; 1687 ls_rqst->rport = rport; 1688 ls_rqst->nvmf_tgt = g_nvmf_ftransport->transport.tgt; 1689 1690 if (TAILQ_EMPTY(&hwqp->ls_pending_queue)) { 1691 ls_rqst->xchg = nvmf_fc_get_xri(hwqp); 1692 } else { 1693 ls_rqst->xchg = NULL; 1694 } 1695 1696 if (ls_rqst->xchg) { 1697 /* Handover the request to LS module */ 1698 nvmf_fc_handle_ls_rqst(ls_rqst); 1699 } else { 1700 /* No XCHG available. Add to pending list. */ 1701 hwqp->counters.no_xchg++; 1702 TAILQ_INSERT_TAIL(&hwqp->ls_pending_queue, ls_rqst, ls_pending_link); 1703 } 1704 } else if ((frame->r_ctl == FCNVME_R_CTL_CMD_REQ) && 1705 (frame->type == FCNVME_TYPE_FC_EXCHANGE)) { 1706 1707 SPDK_DEBUGLOG(nvmf_fc, "Process IO NVME frame\n"); 1708 rc = nvmf_fc_hwqp_handle_request(hwqp, frame, buffer, plen); 1709 if (!rc) { 1710 nvmf_fc_rqpair_buffer_release(hwqp, buff_idx); 1711 } 1712 } else { 1713 1714 SPDK_ERRLOG("Unknown frame received. Dropping\n"); 1715 hwqp->counters.unknown_frame++; 1716 rc = -EINVAL; 1717 } 1718 1719 return rc; 1720 } 1721 1722 void 1723 nvmf_fc_hwqp_process_pending_reqs(struct spdk_nvmf_fc_hwqp *hwqp) 1724 { 1725 struct spdk_nvmf_request *req = NULL, *tmp; 1726 struct spdk_nvmf_fc_request *fc_req; 1727 int budget = 64; 1728 1729 if (!hwqp->fgroup) { 1730 /* LS queue is tied to acceptor_poll group and LS pending requests 1731 * are stagged and processed using hwqp->ls_pending_queue. 1732 */ 1733 return; 1734 } 1735 1736 STAILQ_FOREACH_SAFE(req, &hwqp->fgroup->group.pending_buf_queue, buf_link, tmp) { 1737 fc_req = SPDK_CONTAINEROF(req, struct spdk_nvmf_fc_request, req); 1738 if (!nvmf_fc_request_execute(fc_req)) { 1739 /* Successfully posted, Delete from pending. */ 1740 nvmf_fc_request_remove_from_pending(fc_req); 1741 } 1742 1743 if (budget) { 1744 budget--; 1745 } else { 1746 return; 1747 } 1748 } 1749 } 1750 1751 void 1752 nvmf_fc_hwqp_process_pending_ls_rqsts(struct spdk_nvmf_fc_hwqp *hwqp) 1753 { 1754 struct spdk_nvmf_fc_ls_rqst *ls_rqst = NULL, *tmp; 1755 struct spdk_nvmf_fc_nport *nport = NULL; 1756 struct spdk_nvmf_fc_remote_port_info *rport = NULL; 1757 1758 TAILQ_FOREACH_SAFE(ls_rqst, &hwqp->ls_pending_queue, ls_pending_link, tmp) { 1759 /* lookup nport and rport again - make sure they are still valid */ 1760 int rc = nvmf_fc_hwqp_find_nport_and_rport(hwqp, ls_rqst->d_id, &nport, ls_rqst->s_id, &rport); 1761 if (rc) { 1762 if (nport == NULL) { 1763 SPDK_ERRLOG("Nport not found. Dropping\n"); 1764 /* increment invalid nport counter */ 1765 hwqp->counters.nport_invalid++; 1766 } else if (rport == NULL) { 1767 SPDK_ERRLOG("Rport not found. Dropping\n"); 1768 /* increment invalid rport counter */ 1769 hwqp->counters.rport_invalid++; 1770 } 1771 nvmf_fc_release_ls_rqst(hwqp, ls_rqst); 1772 continue; 1773 } 1774 if (nport->nport_state != SPDK_NVMF_FC_OBJECT_CREATED || 1775 rport->rport_state != SPDK_NVMF_FC_OBJECT_CREATED) { 1776 SPDK_ERRLOG("%s state not created. Dropping\n", 1777 nport->nport_state != SPDK_NVMF_FC_OBJECT_CREATED ? 1778 "Nport" : "Rport"); 1779 nvmf_fc_release_ls_rqst(hwqp, ls_rqst); 1780 continue; 1781 } 1782 1783 ls_rqst->xchg = nvmf_fc_get_xri(hwqp); 1784 if (ls_rqst->xchg) { 1785 /* Got an XCHG */ 1786 TAILQ_REMOVE(&hwqp->ls_pending_queue, ls_rqst, ls_pending_link); 1787 /* Handover the request to LS module */ 1788 nvmf_fc_handle_ls_rqst(ls_rqst); 1789 } else { 1790 /* No more XCHGs. Stop processing. */ 1791 hwqp->counters.no_xchg++; 1792 return; 1793 } 1794 } 1795 } 1796 1797 int 1798 nvmf_fc_handle_rsp(struct spdk_nvmf_fc_request *fc_req) 1799 { 1800 int rc = 0; 1801 struct spdk_nvmf_request *req = &fc_req->req; 1802 struct spdk_nvmf_qpair *qpair = req->qpair; 1803 struct spdk_nvmf_fc_conn *fc_conn = nvmf_fc_get_conn(qpair); 1804 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1805 uint16_t ersp_len = 0; 1806 1807 /* set sq head value in resp */ 1808 rsp->sqhd = nvmf_fc_advance_conn_sqhead(qpair); 1809 1810 /* Increment connection responses */ 1811 fc_conn->rsp_count++; 1812 1813 if (nvmf_fc_send_ersp_required(fc_req, fc_conn->rsp_count, 1814 fc_req->transferred_len)) { 1815 /* Fill ERSP Len */ 1816 to_be16(&ersp_len, (sizeof(struct spdk_nvmf_fc_ersp_iu) / 1817 sizeof(uint32_t))); 1818 fc_req->ersp.ersp_len = ersp_len; 1819 1820 /* Fill RSN */ 1821 to_be32(&fc_req->ersp.response_seq_no, fc_conn->rsn); 1822 fc_conn->rsn++; 1823 1824 /* Fill transfer length */ 1825 to_be32(&fc_req->ersp.transferred_data_len, fc_req->transferred_len); 1826 1827 SPDK_DEBUGLOG(nvmf_fc, "Posting ERSP.\n"); 1828 rc = nvmf_fc_xmt_rsp(fc_req, (uint8_t *)&fc_req->ersp, 1829 sizeof(struct spdk_nvmf_fc_ersp_iu)); 1830 } else { 1831 SPDK_DEBUGLOG(nvmf_fc, "Posting RSP.\n"); 1832 rc = nvmf_fc_xmt_rsp(fc_req, NULL, 0); 1833 } 1834 1835 return rc; 1836 } 1837 1838 bool 1839 nvmf_fc_send_ersp_required(struct spdk_nvmf_fc_request *fc_req, 1840 uint32_t rsp_cnt, uint32_t xfer_len) 1841 { 1842 struct spdk_nvmf_request *req = &fc_req->req; 1843 struct spdk_nvmf_qpair *qpair = req->qpair; 1844 struct spdk_nvmf_fc_conn *fc_conn = nvmf_fc_get_conn(qpair); 1845 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1846 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1847 uint16_t status = *((uint16_t *)&rsp->status); 1848 1849 /* 1850 * Check if we need to send ERSP 1851 * 1) For every N responses where N == ersp_ratio 1852 * 2) Fabric commands. 1853 * 3) Completion status failed or Completion dw0 or dw1 valid. 1854 * 4) SQ == 90% full. 1855 * 5) Transfer length not equal to CMD IU length 1856 */ 1857 1858 if (!(rsp_cnt % fc_conn->esrp_ratio) || 1859 (cmd->opc == SPDK_NVME_OPC_FABRIC) || 1860 (status & 0xFFFE) || rsp->cdw0 || rsp->cdw1 || 1861 (req->length != xfer_len)) { 1862 return true; 1863 } 1864 return false; 1865 } 1866 1867 static int 1868 nvmf_fc_request_complete(struct spdk_nvmf_request *req) 1869 { 1870 int rc = 0; 1871 struct spdk_nvmf_fc_request *fc_req = nvmf_fc_get_fc_req(req); 1872 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1873 1874 if (fc_req->is_aborted) { 1875 /* Defer this to make sure we dont call io cleanup in same context. */ 1876 nvmf_fc_poller_api_func(fc_req->hwqp, SPDK_NVMF_FC_POLLER_API_REQ_ABORT_COMPLETE, 1877 (void *)fc_req); 1878 } else if (rsp->status.sc == SPDK_NVME_SC_SUCCESS && 1879 req->xfer == SPDK_NVME_DATA_CONTROLLER_TO_HOST) { 1880 1881 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_READ_XFER); 1882 1883 rc = nvmf_fc_send_data(fc_req); 1884 } else { 1885 if (req->xfer == SPDK_NVME_DATA_HOST_TO_CONTROLLER) { 1886 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_WRITE_RSP); 1887 } else if (req->xfer == SPDK_NVME_DATA_CONTROLLER_TO_HOST) { 1888 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_READ_RSP); 1889 } else { 1890 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_NONE_RSP); 1891 } 1892 1893 rc = nvmf_fc_handle_rsp(fc_req); 1894 } 1895 1896 if (rc) { 1897 SPDK_ERRLOG("Error in request complete.\n"); 1898 _nvmf_fc_request_free(fc_req); 1899 } 1900 return 0; 1901 } 1902 1903 struct spdk_nvmf_tgt * 1904 nvmf_fc_get_tgt(void) 1905 { 1906 if (g_nvmf_ftransport) { 1907 return g_nvmf_ftransport->transport.tgt; 1908 } 1909 return NULL; 1910 } 1911 1912 /* 1913 * FC Transport Public API begins here 1914 */ 1915 1916 #define SPDK_NVMF_FC_DEFAULT_MAX_QUEUE_DEPTH 128 1917 #define SPDK_NVMF_FC_DEFAULT_AQ_DEPTH 32 1918 #define SPDK_NVMF_FC_DEFAULT_MAX_QPAIRS_PER_CTRLR 5 1919 #define SPDK_NVMF_FC_DEFAULT_IN_CAPSULE_DATA_SIZE 0 1920 #define SPDK_NVMF_FC_DEFAULT_MAX_IO_SIZE 65536 1921 #define SPDK_NVMF_FC_DEFAULT_IO_UNIT_SIZE 4096 1922 #define SPDK_NVMF_FC_DEFAULT_NUM_SHARED_BUFFERS 8192 1923 #define SPDK_NVMF_FC_DEFAULT_MAX_SGE (SPDK_NVMF_FC_DEFAULT_MAX_IO_SIZE / \ 1924 SPDK_NVMF_FC_DEFAULT_IO_UNIT_SIZE) 1925 1926 static void 1927 nvmf_fc_opts_init(struct spdk_nvmf_transport_opts *opts) 1928 { 1929 opts->max_queue_depth = SPDK_NVMF_FC_DEFAULT_MAX_QUEUE_DEPTH; 1930 opts->max_qpairs_per_ctrlr = SPDK_NVMF_FC_DEFAULT_MAX_QPAIRS_PER_CTRLR; 1931 opts->in_capsule_data_size = SPDK_NVMF_FC_DEFAULT_IN_CAPSULE_DATA_SIZE; 1932 opts->max_io_size = SPDK_NVMF_FC_DEFAULT_MAX_IO_SIZE; 1933 opts->io_unit_size = SPDK_NVMF_FC_DEFAULT_IO_UNIT_SIZE; 1934 opts->max_aq_depth = SPDK_NVMF_FC_DEFAULT_AQ_DEPTH; 1935 opts->num_shared_buffers = SPDK_NVMF_FC_DEFAULT_NUM_SHARED_BUFFERS; 1936 } 1937 1938 static int nvmf_fc_accept(void *ctx); 1939 1940 static struct spdk_nvmf_transport * 1941 nvmf_fc_create(struct spdk_nvmf_transport_opts *opts) 1942 { 1943 uint32_t sge_count; 1944 1945 SPDK_INFOLOG(nvmf_fc, "*** FC Transport Init ***\n" 1946 " Transport opts: max_ioq_depth=%d, max_io_size=%d,\n" 1947 " max_io_qpairs_per_ctrlr=%d, io_unit_size=%d,\n" 1948 " max_aq_depth=%d\n", 1949 opts->max_queue_depth, 1950 opts->max_io_size, 1951 opts->max_qpairs_per_ctrlr - 1, 1952 opts->io_unit_size, 1953 opts->max_aq_depth); 1954 1955 if (g_nvmf_ftransport) { 1956 SPDK_ERRLOG("Duplicate NVMF-FC transport create request!\n"); 1957 return NULL; 1958 } 1959 1960 if (spdk_env_get_last_core() < 1) { 1961 SPDK_ERRLOG("Not enough cores/threads (%d) to run NVMF-FC transport!\n", 1962 spdk_env_get_last_core() + 1); 1963 return NULL; 1964 } 1965 1966 sge_count = opts->max_io_size / opts->io_unit_size; 1967 if (sge_count > SPDK_NVMF_FC_DEFAULT_MAX_SGE) { 1968 SPDK_ERRLOG("Unsupported IO Unit size specified, %d bytes\n", opts->io_unit_size); 1969 return NULL; 1970 } 1971 1972 g_nvmf_fc_main_thread = spdk_get_thread(); 1973 g_nvmf_fgroup_count = 0; 1974 g_nvmf_ftransport = calloc(1, sizeof(*g_nvmf_ftransport)); 1975 1976 if (!g_nvmf_ftransport) { 1977 SPDK_ERRLOG("Failed to allocate NVMF-FC transport\n"); 1978 return NULL; 1979 } 1980 1981 if (pthread_mutex_init(&g_nvmf_ftransport->lock, NULL)) { 1982 SPDK_ERRLOG("pthread_mutex_init() failed\n"); 1983 free(g_nvmf_ftransport); 1984 g_nvmf_ftransport = NULL; 1985 return NULL; 1986 } 1987 1988 g_nvmf_ftransport->accept_poller = SPDK_POLLER_REGISTER(nvmf_fc_accept, 1989 &g_nvmf_ftransport->transport, opts->acceptor_poll_rate); 1990 if (!g_nvmf_ftransport->accept_poller) { 1991 free(g_nvmf_ftransport); 1992 g_nvmf_ftransport = NULL; 1993 return NULL; 1994 } 1995 1996 /* initialize the low level FC driver */ 1997 nvmf_fc_lld_init(); 1998 1999 return &g_nvmf_ftransport->transport; 2000 } 2001 2002 static void 2003 nvmf_fc_destroy_done_cb(void *cb_arg) 2004 { 2005 free(g_nvmf_ftransport); 2006 if (g_transport_destroy_done_cb) { 2007 g_transport_destroy_done_cb(cb_arg); 2008 g_transport_destroy_done_cb = NULL; 2009 } 2010 } 2011 2012 static int 2013 nvmf_fc_destroy(struct spdk_nvmf_transport *transport, 2014 spdk_nvmf_transport_destroy_done_cb cb_fn, void *cb_arg) 2015 { 2016 if (transport) { 2017 struct spdk_nvmf_fc_poll_group *fgroup, *pg_tmp; 2018 2019 /* clean up any FC poll groups still around */ 2020 TAILQ_FOREACH_SAFE(fgroup, &g_nvmf_fgroups, link, pg_tmp) { 2021 TAILQ_REMOVE(&g_nvmf_fgroups, fgroup, link); 2022 free(fgroup); 2023 } 2024 2025 spdk_poller_unregister(&g_nvmf_ftransport->accept_poller); 2026 g_nvmf_fgroup_count = 0; 2027 g_transport_destroy_done_cb = cb_fn; 2028 2029 /* low level FC driver clean up */ 2030 nvmf_fc_lld_fini(nvmf_fc_destroy_done_cb, cb_arg); 2031 } 2032 2033 return 0; 2034 } 2035 2036 static int 2037 nvmf_fc_listen(struct spdk_nvmf_transport *transport, const struct spdk_nvme_transport_id *trid, 2038 struct spdk_nvmf_listen_opts *listen_opts) 2039 { 2040 return 0; 2041 } 2042 2043 static void 2044 nvmf_fc_stop_listen(struct spdk_nvmf_transport *transport, 2045 const struct spdk_nvme_transport_id *_trid) 2046 { 2047 } 2048 2049 static int 2050 nvmf_fc_accept(void *ctx) 2051 { 2052 struct spdk_nvmf_fc_port *fc_port = NULL; 2053 uint32_t count = 0; 2054 static bool start_lld = false; 2055 2056 if (spdk_unlikely(!start_lld)) { 2057 start_lld = true; 2058 nvmf_fc_lld_start(); 2059 } 2060 2061 /* poll the LS queue on each port */ 2062 TAILQ_FOREACH(fc_port, &g_spdk_nvmf_fc_port_list, link) { 2063 if (fc_port->hw_port_status == SPDK_FC_PORT_ONLINE) { 2064 count += nvmf_fc_process_queue(&fc_port->ls_queue); 2065 } 2066 } 2067 2068 return count > 0 ? SPDK_POLLER_BUSY : SPDK_POLLER_IDLE; 2069 } 2070 2071 static void 2072 nvmf_fc_discover(struct spdk_nvmf_transport *transport, 2073 struct spdk_nvme_transport_id *trid, 2074 struct spdk_nvmf_discovery_log_page_entry *entry) 2075 { 2076 entry->trtype = (enum spdk_nvme_transport_type) SPDK_NVMF_TRTYPE_FC; 2077 entry->adrfam = trid->adrfam; 2078 entry->treq.secure_channel = SPDK_NVMF_TREQ_SECURE_CHANNEL_NOT_SPECIFIED; 2079 2080 spdk_strcpy_pad(entry->trsvcid, trid->trsvcid, sizeof(entry->trsvcid), ' '); 2081 spdk_strcpy_pad(entry->traddr, trid->traddr, sizeof(entry->traddr), ' '); 2082 } 2083 2084 static struct spdk_nvmf_transport_poll_group * 2085 nvmf_fc_poll_group_create(struct spdk_nvmf_transport *transport, 2086 struct spdk_nvmf_poll_group *group) 2087 { 2088 struct spdk_nvmf_fc_poll_group *fgroup; 2089 struct spdk_nvmf_fc_transport *ftransport = 2090 SPDK_CONTAINEROF(transport, struct spdk_nvmf_fc_transport, transport); 2091 2092 if (spdk_interrupt_mode_is_enabled()) { 2093 SPDK_ERRLOG("FC transport does not support interrupt mode\n"); 2094 return NULL; 2095 } 2096 2097 fgroup = calloc(1, sizeof(struct spdk_nvmf_fc_poll_group)); 2098 if (!fgroup) { 2099 SPDK_ERRLOG("Unable to alloc FC poll group\n"); 2100 return NULL; 2101 } 2102 2103 TAILQ_INIT(&fgroup->hwqp_list); 2104 2105 pthread_mutex_lock(&ftransport->lock); 2106 TAILQ_INSERT_TAIL(&g_nvmf_fgroups, fgroup, link); 2107 g_nvmf_fgroup_count++; 2108 pthread_mutex_unlock(&ftransport->lock); 2109 2110 return &fgroup->group; 2111 } 2112 2113 static void 2114 nvmf_fc_poll_group_destroy(struct spdk_nvmf_transport_poll_group *group) 2115 { 2116 struct spdk_nvmf_fc_poll_group *fgroup; 2117 struct spdk_nvmf_fc_transport *ftransport = 2118 SPDK_CONTAINEROF(group->transport, struct spdk_nvmf_fc_transport, transport); 2119 2120 fgroup = SPDK_CONTAINEROF(group, struct spdk_nvmf_fc_poll_group, group); 2121 pthread_mutex_lock(&ftransport->lock); 2122 TAILQ_REMOVE(&g_nvmf_fgroups, fgroup, link); 2123 g_nvmf_fgroup_count--; 2124 pthread_mutex_unlock(&ftransport->lock); 2125 2126 free(fgroup); 2127 } 2128 2129 static int 2130 nvmf_fc_poll_group_add(struct spdk_nvmf_transport_poll_group *group, 2131 struct spdk_nvmf_qpair *qpair) 2132 { 2133 struct spdk_nvmf_fc_poll_group *fgroup; 2134 struct spdk_nvmf_fc_conn *fc_conn; 2135 struct spdk_nvmf_fc_hwqp *hwqp = NULL; 2136 struct spdk_nvmf_fc_ls_add_conn_api_data *api_data = NULL; 2137 bool hwqp_found = false; 2138 2139 fgroup = SPDK_CONTAINEROF(group, struct spdk_nvmf_fc_poll_group, group); 2140 fc_conn = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_fc_conn, qpair); 2141 2142 TAILQ_FOREACH(hwqp, &fgroup->hwqp_list, link) { 2143 if (fc_conn->fc_assoc->tgtport->fc_port == hwqp->fc_port) { 2144 hwqp_found = true; 2145 break; 2146 } 2147 } 2148 2149 if (!hwqp_found) { 2150 SPDK_ERRLOG("No valid hwqp found for new QP.\n"); 2151 goto err; 2152 } 2153 2154 if (!nvmf_fc_assign_conn_to_hwqp(hwqp, 2155 &fc_conn->conn_id, 2156 fc_conn->max_queue_depth)) { 2157 SPDK_ERRLOG("Failed to get a connection id for new QP.\n"); 2158 goto err; 2159 } 2160 2161 fc_conn->hwqp = hwqp; 2162 2163 /* If this is for ADMIN connection, then update assoc ID. */ 2164 if (fc_conn->qpair.qid == 0) { 2165 fc_conn->fc_assoc->assoc_id = fc_conn->conn_id; 2166 } 2167 2168 api_data = &fc_conn->create_opd->u.add_conn; 2169 nvmf_fc_poller_api_func(hwqp, SPDK_NVMF_FC_POLLER_API_ADD_CONNECTION, &api_data->args); 2170 return 0; 2171 err: 2172 return -1; 2173 } 2174 2175 static int 2176 nvmf_fc_poll_group_poll(struct spdk_nvmf_transport_poll_group *group) 2177 { 2178 uint32_t count = 0; 2179 struct spdk_nvmf_fc_poll_group *fgroup; 2180 struct spdk_nvmf_fc_hwqp *hwqp; 2181 2182 fgroup = SPDK_CONTAINEROF(group, struct spdk_nvmf_fc_poll_group, group); 2183 2184 TAILQ_FOREACH(hwqp, &fgroup->hwqp_list, link) { 2185 if (hwqp->state == SPDK_FC_HWQP_ONLINE) { 2186 count += nvmf_fc_process_queue(hwqp); 2187 } 2188 } 2189 2190 return (int) count; 2191 } 2192 2193 static int 2194 nvmf_fc_request_free(struct spdk_nvmf_request *req) 2195 { 2196 struct spdk_nvmf_fc_request *fc_req = nvmf_fc_get_fc_req(req); 2197 2198 if (!fc_req->is_aborted) { 2199 nvmf_fc_request_set_state(fc_req, SPDK_NVMF_FC_REQ_BDEV_ABORTED); 2200 nvmf_fc_request_abort(fc_req, true, NULL, NULL); 2201 } else { 2202 nvmf_fc_request_abort_complete(fc_req); 2203 } 2204 2205 return 0; 2206 } 2207 2208 static void 2209 nvmf_fc_connection_delete_done_cb(void *arg) 2210 { 2211 struct spdk_nvmf_fc_qpair_remove_ctx *fc_ctx = arg; 2212 2213 if (fc_ctx->cb_fn) { 2214 spdk_thread_send_msg(fc_ctx->qpair_thread, fc_ctx->cb_fn, fc_ctx->cb_ctx); 2215 } 2216 free(fc_ctx); 2217 } 2218 2219 static void 2220 _nvmf_fc_close_qpair(void *arg) 2221 { 2222 struct spdk_nvmf_fc_qpair_remove_ctx *fc_ctx = arg; 2223 struct spdk_nvmf_qpair *qpair = fc_ctx->qpair; 2224 struct spdk_nvmf_fc_conn *fc_conn; 2225 int rc; 2226 2227 fc_conn = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_fc_conn, qpair); 2228 if (fc_conn->conn_id == NVMF_FC_INVALID_CONN_ID) { 2229 struct spdk_nvmf_fc_ls_add_conn_api_data *api_data = NULL; 2230 2231 if (fc_conn->create_opd) { 2232 api_data = &fc_conn->create_opd->u.add_conn; 2233 2234 nvmf_fc_ls_add_conn_failure(api_data->assoc, api_data->ls_rqst, 2235 api_data->args.fc_conn, api_data->aq_conn); 2236 } 2237 } else if (fc_conn->conn_state == SPDK_NVMF_FC_OBJECT_CREATED) { 2238 rc = nvmf_fc_delete_connection(fc_conn, false, true, 2239 nvmf_fc_connection_delete_done_cb, fc_ctx); 2240 if (!rc) { 2241 /* Wait for transport to complete its work. */ 2242 return; 2243 } 2244 2245 SPDK_ERRLOG("%s: Delete FC connection failed.\n", __func__); 2246 } else if (fc_conn->conn_state == SPDK_NVMF_FC_OBJECT_TO_BE_DELETED) { 2247 /* This is the case where deletion started from FC layer. */ 2248 spdk_thread_send_msg(fc_ctx->qpair_thread, fc_conn->qpair_disconnect_cb_fn, 2249 fc_conn->qpair_disconnect_ctx); 2250 } 2251 2252 nvmf_fc_connection_delete_done_cb(fc_ctx); 2253 } 2254 2255 static void 2256 nvmf_fc_close_qpair(struct spdk_nvmf_qpair *qpair, 2257 spdk_nvmf_transport_qpair_fini_cb cb_fn, void *cb_arg) 2258 { 2259 struct spdk_nvmf_fc_qpair_remove_ctx *fc_ctx; 2260 2261 fc_ctx = calloc(1, sizeof(struct spdk_nvmf_fc_qpair_remove_ctx)); 2262 if (!fc_ctx) { 2263 SPDK_ERRLOG("Unable to allocate close_qpair ctx."); 2264 if (cb_fn) { 2265 cb_fn(cb_arg); 2266 } 2267 return; 2268 } 2269 fc_ctx->qpair = qpair; 2270 fc_ctx->cb_fn = cb_fn; 2271 fc_ctx->cb_ctx = cb_arg; 2272 fc_ctx->qpair_thread = spdk_get_thread(); 2273 2274 spdk_thread_send_msg(nvmf_fc_get_main_thread(), _nvmf_fc_close_qpair, fc_ctx); 2275 } 2276 2277 static int 2278 nvmf_fc_qpair_get_peer_trid(struct spdk_nvmf_qpair *qpair, 2279 struct spdk_nvme_transport_id *trid) 2280 { 2281 struct spdk_nvmf_fc_conn *fc_conn; 2282 2283 fc_conn = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_fc_conn, qpair); 2284 memcpy(trid, &fc_conn->trid, sizeof(struct spdk_nvme_transport_id)); 2285 return 0; 2286 } 2287 2288 static int 2289 nvmf_fc_qpair_get_local_trid(struct spdk_nvmf_qpair *qpair, 2290 struct spdk_nvme_transport_id *trid) 2291 { 2292 struct spdk_nvmf_fc_conn *fc_conn; 2293 2294 fc_conn = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_fc_conn, qpair); 2295 memcpy(trid, &fc_conn->trid, sizeof(struct spdk_nvme_transport_id)); 2296 return 0; 2297 } 2298 2299 static int 2300 nvmf_fc_qpair_get_listen_trid(struct spdk_nvmf_qpair *qpair, 2301 struct spdk_nvme_transport_id *trid) 2302 { 2303 struct spdk_nvmf_fc_conn *fc_conn; 2304 2305 fc_conn = SPDK_CONTAINEROF(qpair, struct spdk_nvmf_fc_conn, qpair); 2306 memcpy(trid, &fc_conn->trid, sizeof(struct spdk_nvme_transport_id)); 2307 return 0; 2308 } 2309 2310 static void 2311 nvmf_fc_qpair_abort_request(struct spdk_nvmf_qpair *qpair, 2312 struct spdk_nvmf_request *req) 2313 { 2314 spdk_nvmf_request_complete(req); 2315 } 2316 2317 const struct spdk_nvmf_transport_ops spdk_nvmf_transport_fc = { 2318 .name = "FC", 2319 .type = (enum spdk_nvme_transport_type) SPDK_NVMF_TRTYPE_FC, 2320 .opts_init = nvmf_fc_opts_init, 2321 .create = nvmf_fc_create, 2322 .destroy = nvmf_fc_destroy, 2323 2324 .listen = nvmf_fc_listen, 2325 .stop_listen = nvmf_fc_stop_listen, 2326 2327 .listener_discover = nvmf_fc_discover, 2328 2329 .poll_group_create = nvmf_fc_poll_group_create, 2330 .poll_group_destroy = nvmf_fc_poll_group_destroy, 2331 .poll_group_add = nvmf_fc_poll_group_add, 2332 .poll_group_poll = nvmf_fc_poll_group_poll, 2333 2334 .req_complete = nvmf_fc_request_complete, 2335 .req_free = nvmf_fc_request_free, 2336 .qpair_fini = nvmf_fc_close_qpair, 2337 .qpair_get_peer_trid = nvmf_fc_qpair_get_peer_trid, 2338 .qpair_get_local_trid = nvmf_fc_qpair_get_local_trid, 2339 .qpair_get_listen_trid = nvmf_fc_qpair_get_listen_trid, 2340 .qpair_abort_request = nvmf_fc_qpair_abort_request, 2341 }; 2342 2343 /* Initializes the data for the creation of a FC-Port object in the SPDK 2344 * library. The spdk_nvmf_fc_port is a well defined structure that is part of 2345 * the API to the library. The contents added to this well defined structure 2346 * is private to each vendors implementation. 2347 */ 2348 static int 2349 nvmf_fc_adm_hw_port_data_init(struct spdk_nvmf_fc_port *fc_port, 2350 struct spdk_nvmf_fc_hw_port_init_args *args) 2351 { 2352 int rc = 0; 2353 /* Used a high number for the LS HWQP so that it does not clash with the 2354 * IO HWQP's and immediately shows a LS queue during tracing. 2355 */ 2356 uint32_t i; 2357 2358 fc_port->port_hdl = args->port_handle; 2359 fc_port->lld_fc_port = args->lld_fc_port; 2360 fc_port->hw_port_status = SPDK_FC_PORT_OFFLINE; 2361 fc_port->fcp_rq_id = args->fcp_rq_id; 2362 fc_port->num_io_queues = args->io_queue_cnt; 2363 2364 /* 2365 * Set port context from init args. Used for FCP port stats. 2366 */ 2367 fc_port->port_ctx = args->port_ctx; 2368 2369 /* 2370 * Initialize the LS queue wherever needed. 2371 */ 2372 fc_port->ls_queue.queues = args->ls_queue; 2373 fc_port->ls_queue.thread = nvmf_fc_get_main_thread(); 2374 fc_port->ls_queue.hwqp_id = SPDK_MAX_NUM_OF_FC_PORTS * fc_port->num_io_queues; 2375 fc_port->ls_queue.is_ls_queue = true; 2376 2377 /* 2378 * Initialize the LS queue. 2379 */ 2380 rc = nvmf_fc_init_hwqp(fc_port, &fc_port->ls_queue); 2381 if (rc) { 2382 return rc; 2383 } 2384 2385 /* 2386 * Initialize the IO queues. 2387 */ 2388 for (i = 0; i < args->io_queue_cnt; i++) { 2389 struct spdk_nvmf_fc_hwqp *hwqp = &fc_port->io_queues[i]; 2390 hwqp->hwqp_id = i; 2391 hwqp->queues = args->io_queues[i]; 2392 hwqp->is_ls_queue = false; 2393 rc = nvmf_fc_init_hwqp(fc_port, hwqp); 2394 if (rc) { 2395 for (; i > 0; --i) { 2396 rte_hash_free(fc_port->io_queues[i - 1].connection_list_hash); 2397 rte_hash_free(fc_port->io_queues[i - 1].rport_list_hash); 2398 } 2399 rte_hash_free(fc_port->ls_queue.connection_list_hash); 2400 rte_hash_free(fc_port->ls_queue.rport_list_hash); 2401 return rc; 2402 } 2403 } 2404 2405 /* 2406 * Initialize the LS processing for port 2407 */ 2408 nvmf_fc_ls_init(fc_port); 2409 2410 /* 2411 * Initialize the list of nport on this HW port. 2412 */ 2413 TAILQ_INIT(&fc_port->nport_list); 2414 fc_port->num_nports = 0; 2415 2416 return 0; 2417 } 2418 2419 /* 2420 * FC port must have all its nports deleted before transitioning to offline state. 2421 */ 2422 static void 2423 nvmf_fc_adm_hw_port_offline_nport_delete(struct spdk_nvmf_fc_port *fc_port) 2424 { 2425 struct spdk_nvmf_fc_nport *nport = NULL; 2426 /* All nports must have been deleted at this point for this fc port */ 2427 DEV_VERIFY(fc_port && TAILQ_EMPTY(&fc_port->nport_list)); 2428 DEV_VERIFY(fc_port->num_nports == 0); 2429 /* Mark the nport states to be zombie, if they exist */ 2430 if (fc_port && !TAILQ_EMPTY(&fc_port->nport_list)) { 2431 TAILQ_FOREACH(nport, &fc_port->nport_list, link) { 2432 (void)nvmf_fc_nport_set_state(nport, SPDK_NVMF_FC_OBJECT_ZOMBIE); 2433 } 2434 } 2435 } 2436 2437 static void 2438 nvmf_fc_adm_i_t_delete_cb(void *args, uint32_t err) 2439 { 2440 ASSERT_SPDK_FC_MAIN_THREAD(); 2441 struct spdk_nvmf_fc_adm_i_t_del_cb_data *cb_data = args; 2442 struct spdk_nvmf_fc_nport *nport = cb_data->nport; 2443 struct spdk_nvmf_fc_remote_port_info *rport = cb_data->rport; 2444 spdk_nvmf_fc_callback cb_func = cb_data->fc_cb_func; 2445 int spdk_err = 0; 2446 uint8_t port_handle = cb_data->port_handle; 2447 uint32_t s_id = rport->s_id; 2448 uint32_t rpi = rport->rpi; 2449 uint32_t assoc_count = rport->assoc_count; 2450 uint32_t nport_hdl = nport->nport_hdl; 2451 uint32_t d_id = nport->d_id; 2452 char log_str[256]; 2453 2454 /* 2455 * Assert on any delete failure. 2456 */ 2457 if (0 != err) { 2458 DEV_VERIFY(!"Error in IT Delete callback."); 2459 goto out; 2460 } 2461 2462 if (cb_func != NULL) { 2463 (void)cb_func(port_handle, SPDK_FC_IT_DELETE, cb_data->fc_cb_ctx, spdk_err); 2464 } 2465 2466 out: 2467 free(cb_data); 2468 2469 snprintf(log_str, sizeof(log_str), 2470 "IT delete assoc_cb on nport %d done, port_handle:%d s_id:%d d_id:%d rpi:%d rport_assoc_count:%d rc = %d.\n", 2471 nport_hdl, port_handle, s_id, d_id, rpi, assoc_count, err); 2472 2473 if (err != 0) { 2474 SPDK_ERRLOG("%s", log_str); 2475 } else { 2476 SPDK_DEBUGLOG(nvmf_fc_adm_api, "%s", log_str); 2477 } 2478 } 2479 2480 static void 2481 nvmf_fc_adm_i_t_delete_assoc_cb(void *args, uint32_t err) 2482 { 2483 ASSERT_SPDK_FC_MAIN_THREAD(); 2484 struct spdk_nvmf_fc_adm_i_t_del_assoc_cb_data *cb_data = args; 2485 struct spdk_nvmf_fc_nport *nport = cb_data->nport; 2486 struct spdk_nvmf_fc_remote_port_info *rport = cb_data->rport; 2487 spdk_nvmf_fc_adm_i_t_delete_assoc_cb_fn cb_func = cb_data->cb_func; 2488 uint32_t s_id = rport->s_id; 2489 uint32_t rpi = rport->rpi; 2490 uint32_t assoc_count = rport->assoc_count; 2491 uint32_t nport_hdl = nport->nport_hdl; 2492 uint32_t d_id = nport->d_id; 2493 char log_str[256]; 2494 2495 /* 2496 * Assert on any association delete failure. We continue to delete other 2497 * associations in promoted builds. 2498 */ 2499 if (0 != err) { 2500 DEV_VERIFY(!"Nport's association delete callback returned error"); 2501 if (nport->assoc_count > 0) { 2502 nport->assoc_count--; 2503 } 2504 if (rport->assoc_count > 0) { 2505 rport->assoc_count--; 2506 } 2507 } 2508 2509 /* 2510 * If this is the last association being deleted for the ITN, 2511 * execute the callback(s). 2512 */ 2513 if (0 == rport->assoc_count) { 2514 /* Remove the rport from the remote port list. */ 2515 if (nvmf_fc_nport_remove_rem_port(nport, rport) != 0) { 2516 SPDK_ERRLOG("Error while removing rport from list.\n"); 2517 DEV_VERIFY(!"Error while removing rport from list."); 2518 } 2519 2520 if (cb_func != NULL) { 2521 /* 2522 * Callback function is provided by the caller 2523 * of nvmf_fc_adm_i_t_delete_assoc(). 2524 */ 2525 (void)cb_func(cb_data->cb_ctx, 0); 2526 } 2527 free(rport); 2528 free(args); 2529 } 2530 2531 snprintf(log_str, sizeof(log_str), 2532 "IT delete assoc_cb on nport %d done, s_id:%d d_id:%d rpi:%d rport_assoc_count:%d err = %d.\n", 2533 nport_hdl, s_id, d_id, rpi, assoc_count, err); 2534 2535 if (err != 0) { 2536 SPDK_ERRLOG("%s", log_str); 2537 } else { 2538 SPDK_DEBUGLOG(nvmf_fc_adm_api, "%s", log_str); 2539 } 2540 } 2541 2542 /** 2543 * Process a IT delete. 2544 */ 2545 static void 2546 nvmf_fc_adm_i_t_delete_assoc(struct spdk_nvmf_fc_nport *nport, 2547 struct spdk_nvmf_fc_remote_port_info *rport, 2548 spdk_nvmf_fc_adm_i_t_delete_assoc_cb_fn cb_func, 2549 void *cb_ctx) 2550 { 2551 int err = 0; 2552 struct spdk_nvmf_fc_association *assoc = NULL; 2553 int assoc_err = 0; 2554 uint32_t num_assoc = 0; 2555 uint32_t num_assoc_del_scheduled = 0; 2556 struct spdk_nvmf_fc_adm_i_t_del_assoc_cb_data *cb_data = NULL; 2557 uint8_t port_hdl = nport->port_hdl; 2558 uint32_t s_id = rport->s_id; 2559 uint32_t rpi = rport->rpi; 2560 uint32_t assoc_count = rport->assoc_count; 2561 char log_str[256]; 2562 2563 SPDK_DEBUGLOG(nvmf_fc_adm_api, "IT delete associations on nport:%d begin.\n", 2564 nport->nport_hdl); 2565 2566 /* 2567 * Allocate memory for callback data. 2568 * This memory will be freed by the callback function. 2569 */ 2570 cb_data = calloc(1, sizeof(struct spdk_nvmf_fc_adm_i_t_del_assoc_cb_data)); 2571 if (NULL == cb_data) { 2572 SPDK_ERRLOG("Failed to allocate memory for cb_data on nport:%d.\n", nport->nport_hdl); 2573 err = -ENOMEM; 2574 goto out; 2575 } 2576 cb_data->nport = nport; 2577 cb_data->rport = rport; 2578 cb_data->port_handle = port_hdl; 2579 cb_data->cb_func = cb_func; 2580 cb_data->cb_ctx = cb_ctx; 2581 2582 /* 2583 * Delete all associations, if any, related with this ITN/remote_port. 2584 */ 2585 TAILQ_FOREACH(assoc, &nport->fc_associations, link) { 2586 num_assoc++; 2587 if (assoc->s_id == s_id) { 2588 assoc_err = nvmf_fc_delete_association(nport, 2589 assoc->assoc_id, 2590 false /* send abts */, false, 2591 nvmf_fc_adm_i_t_delete_assoc_cb, cb_data); 2592 if (0 != assoc_err) { 2593 /* 2594 * Mark this association as zombie. 2595 */ 2596 err = -EINVAL; 2597 DEV_VERIFY(!"Error while deleting association"); 2598 (void)nvmf_fc_assoc_set_state(assoc, SPDK_NVMF_FC_OBJECT_ZOMBIE); 2599 } else { 2600 num_assoc_del_scheduled++; 2601 } 2602 } 2603 } 2604 2605 out: 2606 if ((cb_data) && (num_assoc_del_scheduled == 0)) { 2607 /* 2608 * Since there are no association_delete calls 2609 * successfully scheduled, the association_delete 2610 * callback function will never be called. 2611 * In this case, call the callback function now. 2612 */ 2613 nvmf_fc_adm_i_t_delete_assoc_cb(cb_data, 0); 2614 } 2615 2616 snprintf(log_str, sizeof(log_str), 2617 "IT delete associations on nport:%d end. " 2618 "s_id:%d rpi:%d assoc_count:%d assoc:%d assoc_del_scheduled:%d rc:%d.\n", 2619 nport->nport_hdl, s_id, rpi, assoc_count, num_assoc, num_assoc_del_scheduled, err); 2620 2621 if (err == 0) { 2622 SPDK_DEBUGLOG(nvmf_fc_adm_api, "%s", log_str); 2623 } else { 2624 SPDK_ERRLOG("%s", log_str); 2625 } 2626 } 2627 2628 static void 2629 nvmf_fc_adm_queue_quiesce_cb(void *cb_data, enum spdk_nvmf_fc_poller_api_ret ret) 2630 { 2631 ASSERT_SPDK_FC_MAIN_THREAD(); 2632 struct spdk_nvmf_fc_poller_api_quiesce_queue_args *quiesce_api_data = NULL; 2633 struct spdk_nvmf_fc_adm_hw_port_quiesce_ctx *port_quiesce_ctx = NULL; 2634 struct spdk_nvmf_fc_hwqp *hwqp = NULL; 2635 struct spdk_nvmf_fc_port *fc_port = NULL; 2636 int err = 0; 2637 2638 quiesce_api_data = (struct spdk_nvmf_fc_poller_api_quiesce_queue_args *)cb_data; 2639 hwqp = quiesce_api_data->hwqp; 2640 fc_port = hwqp->fc_port; 2641 port_quiesce_ctx = (struct spdk_nvmf_fc_adm_hw_port_quiesce_ctx *)quiesce_api_data->ctx; 2642 spdk_nvmf_fc_adm_hw_port_quiesce_cb_fn cb_func = port_quiesce_ctx->cb_func; 2643 2644 /* 2645 * Decrement the callback/quiesced queue count. 2646 */ 2647 port_quiesce_ctx->quiesce_count--; 2648 SPDK_DEBUGLOG(nvmf_fc_adm_api, "Queue%d Quiesced\n", quiesce_api_data->hwqp->hwqp_id); 2649 2650 free(quiesce_api_data); 2651 /* 2652 * Wait for call backs i.e. max_ioq_queues + LS QUEUE. 2653 */ 2654 if (port_quiesce_ctx->quiesce_count > 0) { 2655 return; 2656 } 2657 2658 if (fc_port->hw_port_status == SPDK_FC_PORT_QUIESCED) { 2659 SPDK_ERRLOG("Port %d already in quiesced state.\n", fc_port->port_hdl); 2660 } else { 2661 SPDK_DEBUGLOG(nvmf_fc_adm_api, "HW port %d quiesced.\n", fc_port->port_hdl); 2662 fc_port->hw_port_status = SPDK_FC_PORT_QUIESCED; 2663 } 2664 2665 if (cb_func) { 2666 /* 2667 * Callback function for the called of quiesce. 2668 */ 2669 cb_func(port_quiesce_ctx->ctx, err); 2670 } 2671 2672 /* 2673 * Free the context structure. 2674 */ 2675 free(port_quiesce_ctx); 2676 2677 SPDK_DEBUGLOG(nvmf_fc_adm_api, "HW port %d quiesce done, rc = %d.\n", fc_port->port_hdl, 2678 err); 2679 } 2680 2681 static int 2682 nvmf_fc_adm_hw_queue_quiesce(struct spdk_nvmf_fc_hwqp *fc_hwqp, void *ctx, 2683 spdk_nvmf_fc_poller_api_cb cb_func) 2684 { 2685 struct spdk_nvmf_fc_poller_api_quiesce_queue_args *args; 2686 enum spdk_nvmf_fc_poller_api_ret rc = SPDK_NVMF_FC_POLLER_API_SUCCESS; 2687 int err = 0; 2688 2689 args = calloc(1, sizeof(struct spdk_nvmf_fc_poller_api_quiesce_queue_args)); 2690 2691 if (args == NULL) { 2692 err = -ENOMEM; 2693 SPDK_ERRLOG("Failed to allocate memory for poller quiesce args, hwqp:%d\n", fc_hwqp->hwqp_id); 2694 goto done; 2695 } 2696 args->hwqp = fc_hwqp; 2697 args->ctx = ctx; 2698 args->cb_info.cb_func = cb_func; 2699 args->cb_info.cb_data = args; 2700 args->cb_info.cb_thread = spdk_get_thread(); 2701 2702 SPDK_DEBUGLOG(nvmf_fc_adm_api, "Quiesce queue %d\n", fc_hwqp->hwqp_id); 2703 rc = nvmf_fc_poller_api_func(fc_hwqp, SPDK_NVMF_FC_POLLER_API_QUIESCE_QUEUE, args); 2704 if (rc) { 2705 free(args); 2706 err = -EINVAL; 2707 } 2708 2709 done: 2710 return err; 2711 } 2712 2713 /* 2714 * Hw port Quiesce 2715 */ 2716 static int 2717 nvmf_fc_adm_hw_port_quiesce(struct spdk_nvmf_fc_port *fc_port, void *ctx, 2718 spdk_nvmf_fc_adm_hw_port_quiesce_cb_fn cb_func) 2719 { 2720 struct spdk_nvmf_fc_adm_hw_port_quiesce_ctx *port_quiesce_ctx = NULL; 2721 uint32_t i = 0; 2722 int err = 0; 2723 2724 SPDK_DEBUGLOG(nvmf_fc_adm_api, "HW port:%d is being quiesced.\n", fc_port->port_hdl); 2725 2726 /* 2727 * If the port is in an OFFLINE state, set the state to QUIESCED 2728 * and execute the callback. 2729 */ 2730 if (fc_port->hw_port_status == SPDK_FC_PORT_OFFLINE) { 2731 fc_port->hw_port_status = SPDK_FC_PORT_QUIESCED; 2732 } 2733 2734 if (fc_port->hw_port_status == SPDK_FC_PORT_QUIESCED) { 2735 SPDK_DEBUGLOG(nvmf_fc_adm_api, "Port %d already in quiesced state.\n", 2736 fc_port->port_hdl); 2737 /* 2738 * Execute the callback function directly. 2739 */ 2740 cb_func(ctx, err); 2741 goto out; 2742 } 2743 2744 port_quiesce_ctx = calloc(1, sizeof(struct spdk_nvmf_fc_adm_hw_port_quiesce_ctx)); 2745 2746 if (port_quiesce_ctx == NULL) { 2747 err = -ENOMEM; 2748 SPDK_ERRLOG("Failed to allocate memory for LS queue quiesce ctx, port:%d\n", 2749 fc_port->port_hdl); 2750 goto out; 2751 } 2752 2753 port_quiesce_ctx->quiesce_count = 0; 2754 port_quiesce_ctx->ctx = ctx; 2755 port_quiesce_ctx->cb_func = cb_func; 2756 2757 /* 2758 * Quiesce the LS queue. 2759 */ 2760 err = nvmf_fc_adm_hw_queue_quiesce(&fc_port->ls_queue, port_quiesce_ctx, 2761 nvmf_fc_adm_queue_quiesce_cb); 2762 if (err != 0) { 2763 SPDK_ERRLOG("Failed to quiesce the LS queue.\n"); 2764 goto out; 2765 } 2766 port_quiesce_ctx->quiesce_count++; 2767 2768 /* 2769 * Quiesce the IO queues. 2770 */ 2771 for (i = 0; i < fc_port->num_io_queues; i++) { 2772 err = nvmf_fc_adm_hw_queue_quiesce(&fc_port->io_queues[i], 2773 port_quiesce_ctx, 2774 nvmf_fc_adm_queue_quiesce_cb); 2775 if (err != 0) { 2776 DEV_VERIFY(0); 2777 SPDK_ERRLOG("Failed to quiesce the IO queue:%d.\n", fc_port->io_queues[i].hwqp_id); 2778 } 2779 port_quiesce_ctx->quiesce_count++; 2780 } 2781 2782 out: 2783 if (port_quiesce_ctx && err != 0) { 2784 free(port_quiesce_ctx); 2785 } 2786 return err; 2787 } 2788 2789 /* 2790 * Initialize and add a HW port entry to the global 2791 * HW port list. 2792 */ 2793 static void 2794 nvmf_fc_adm_evnt_hw_port_init(void *arg) 2795 { 2796 ASSERT_SPDK_FC_MAIN_THREAD(); 2797 struct spdk_nvmf_fc_port *fc_port = NULL; 2798 struct spdk_nvmf_fc_adm_api_data *api_data = (struct spdk_nvmf_fc_adm_api_data *)arg; 2799 struct spdk_nvmf_fc_hw_port_init_args *args = (struct spdk_nvmf_fc_hw_port_init_args *) 2800 api_data->api_args; 2801 int err = 0; 2802 2803 if (args->io_queue_cnt > spdk_env_get_core_count()) { 2804 SPDK_ERRLOG("IO queues count greater than cores for %d.\n", args->port_handle); 2805 err = EINVAL; 2806 goto abort_port_init; 2807 } 2808 2809 /* 2810 * 1. Check for duplicate initialization. 2811 */ 2812 fc_port = nvmf_fc_port_lookup(args->port_handle); 2813 if (fc_port != NULL) { 2814 SPDK_ERRLOG("Duplicate port found %d.\n", args->port_handle); 2815 goto abort_port_init; 2816 } 2817 2818 /* 2819 * 2. Get the memory to instantiate a fc port. 2820 */ 2821 fc_port = calloc(1, sizeof(struct spdk_nvmf_fc_port) + 2822 (args->io_queue_cnt * sizeof(struct spdk_nvmf_fc_hwqp))); 2823 if (fc_port == NULL) { 2824 SPDK_ERRLOG("Failed to allocate memory for fc_port %d.\n", args->port_handle); 2825 err = -ENOMEM; 2826 goto abort_port_init; 2827 } 2828 2829 /* assign the io_queues array */ 2830 fc_port->io_queues = (struct spdk_nvmf_fc_hwqp *)((uint8_t *)fc_port + sizeof( 2831 struct spdk_nvmf_fc_port)); 2832 2833 /* 2834 * 3. Initialize the contents for the FC-port 2835 */ 2836 err = nvmf_fc_adm_hw_port_data_init(fc_port, args); 2837 2838 if (err != 0) { 2839 SPDK_ERRLOG("Data initialization failed for fc_port %d.\n", args->port_handle); 2840 DEV_VERIFY(!"Data initialization failed for fc_port"); 2841 goto abort_port_init; 2842 } 2843 2844 /* 2845 * 4. Add this port to the global fc port list in the library. 2846 */ 2847 nvmf_fc_port_add(fc_port); 2848 2849 abort_port_init: 2850 if (err && fc_port) { 2851 free(fc_port); 2852 } 2853 if (api_data->cb_func != NULL) { 2854 (void)api_data->cb_func(args->port_handle, SPDK_FC_HW_PORT_INIT, args->cb_ctx, err); 2855 } 2856 2857 free(arg); 2858 2859 SPDK_DEBUGLOG(nvmf_fc_adm_api, "HW port %d initialize done, rc = %d.\n", 2860 args->port_handle, err); 2861 } 2862 2863 static void 2864 nvmf_fc_adm_hwqp_clean_sync_cb(struct spdk_nvmf_fc_hwqp *hwqp) 2865 { 2866 struct spdk_nvmf_fc_abts_ctx *ctx; 2867 struct spdk_nvmf_fc_poller_api_queue_sync_args *args = NULL, *tmp = NULL; 2868 2869 TAILQ_FOREACH_SAFE(args, &hwqp->sync_cbs, link, tmp) { 2870 TAILQ_REMOVE(&hwqp->sync_cbs, args, link); 2871 ctx = args->cb_info.cb_data; 2872 if (ctx) { 2873 if (++ctx->hwqps_responded == ctx->num_hwqps) { 2874 free(ctx->sync_poller_args); 2875 free(ctx->abts_poller_args); 2876 free(ctx); 2877 } 2878 } 2879 } 2880 } 2881 2882 static void 2883 nvmf_fc_adm_evnt_hw_port_free(void *arg) 2884 { 2885 ASSERT_SPDK_FC_MAIN_THREAD(); 2886 int err = 0, i; 2887 struct spdk_nvmf_fc_port *fc_port = NULL; 2888 struct spdk_nvmf_fc_hwqp *hwqp = NULL; 2889 struct spdk_nvmf_fc_adm_api_data *api_data = (struct spdk_nvmf_fc_adm_api_data *)arg; 2890 struct spdk_nvmf_fc_hw_port_free_args *args = (struct spdk_nvmf_fc_hw_port_free_args *) 2891 api_data->api_args; 2892 2893 fc_port = nvmf_fc_port_lookup(args->port_handle); 2894 if (!fc_port) { 2895 SPDK_ERRLOG("Unable to find the SPDK FC port %d\n", args->port_handle); 2896 err = -EINVAL; 2897 goto out; 2898 } 2899 2900 if (!TAILQ_EMPTY(&fc_port->nport_list)) { 2901 SPDK_ERRLOG("Hw port %d: nports not cleared up yet.\n", args->port_handle); 2902 err = -EIO; 2903 goto out; 2904 } 2905 2906 /* Clean up and free fc_port */ 2907 hwqp = &fc_port->ls_queue; 2908 nvmf_fc_adm_hwqp_clean_sync_cb(hwqp); 2909 rte_hash_free(hwqp->connection_list_hash); 2910 rte_hash_free(hwqp->rport_list_hash); 2911 2912 for (i = 0; i < (int)fc_port->num_io_queues; i++) { 2913 hwqp = &fc_port->io_queues[i]; 2914 2915 nvmf_fc_adm_hwqp_clean_sync_cb(&fc_port->io_queues[i]); 2916 rte_hash_free(hwqp->connection_list_hash); 2917 rte_hash_free(hwqp->rport_list_hash); 2918 } 2919 2920 nvmf_fc_port_remove(fc_port); 2921 free(fc_port); 2922 out: 2923 SPDK_DEBUGLOG(nvmf_fc_adm_api, "HW port %d free done, rc = %d.\n", 2924 args->port_handle, err); 2925 if (api_data->cb_func != NULL) { 2926 (void)api_data->cb_func(args->port_handle, SPDK_FC_HW_PORT_FREE, args->cb_ctx, err); 2927 } 2928 2929 free(arg); 2930 } 2931 2932 /* 2933 * Online a HW port. 2934 */ 2935 static void 2936 nvmf_fc_adm_evnt_hw_port_online(void *arg) 2937 { 2938 ASSERT_SPDK_FC_MAIN_THREAD(); 2939 struct spdk_nvmf_fc_port *fc_port = NULL; 2940 struct spdk_nvmf_fc_hwqp *hwqp = NULL; 2941 struct spdk_nvmf_fc_adm_api_data *api_data = (struct spdk_nvmf_fc_adm_api_data *)arg; 2942 struct spdk_nvmf_fc_hw_port_online_args *args = (struct spdk_nvmf_fc_hw_port_online_args *) 2943 api_data->api_args; 2944 int i = 0; 2945 int err = 0; 2946 2947 fc_port = nvmf_fc_port_lookup(args->port_handle); 2948 if (fc_port) { 2949 /* Set the port state to online */ 2950 err = nvmf_fc_port_set_online(fc_port); 2951 if (err != 0) { 2952 SPDK_ERRLOG("Hw port %d online failed. err = %d\n", fc_port->port_hdl, err); 2953 DEV_VERIFY(!"Hw port online failed"); 2954 goto out; 2955 } 2956 2957 hwqp = &fc_port->ls_queue; 2958 hwqp->context = NULL; 2959 (void)nvmf_fc_hwqp_set_online(hwqp); 2960 2961 /* Cycle through all the io queues and setup a hwqp poller for each. */ 2962 for (i = 0; i < (int)fc_port->num_io_queues; i++) { 2963 hwqp = &fc_port->io_queues[i]; 2964 hwqp->context = NULL; 2965 (void)nvmf_fc_hwqp_set_online(hwqp); 2966 nvmf_fc_poll_group_add_hwqp(hwqp); 2967 } 2968 } else { 2969 SPDK_ERRLOG("Unable to find the SPDK FC port %d\n", args->port_handle); 2970 err = -EINVAL; 2971 } 2972 2973 out: 2974 if (api_data->cb_func != NULL) { 2975 (void)api_data->cb_func(args->port_handle, SPDK_FC_HW_PORT_ONLINE, args->cb_ctx, err); 2976 } 2977 2978 free(arg); 2979 2980 SPDK_DEBUGLOG(nvmf_fc_adm_api, "HW port %d online done, rc = %d.\n", args->port_handle, 2981 err); 2982 } 2983 2984 static void 2985 nvmf_fc_adm_hw_port_offline_cb(void *ctx, int status) 2986 { 2987 int err = 0; 2988 struct spdk_nvmf_fc_port *fc_port = NULL; 2989 struct spdk_nvmf_fc_remove_hwqp_cb_args *remove_hwqp_args = ctx; 2990 struct spdk_nvmf_fc_hw_port_offline_args *args = remove_hwqp_args->cb_args; 2991 2992 if (--remove_hwqp_args->pending_remove_hwqp) { 2993 return; 2994 } 2995 2996 fc_port = nvmf_fc_port_lookup(args->port_handle); 2997 if (!fc_port) { 2998 err = -EINVAL; 2999 SPDK_ERRLOG("fc_port not found.\n"); 3000 goto out; 3001 } 3002 3003 /* 3004 * Delete all the nports. Ideally, the nports should have been purged 3005 * before the offline event, in which case, only a validation is required. 3006 */ 3007 nvmf_fc_adm_hw_port_offline_nport_delete(fc_port); 3008 out: 3009 if (remove_hwqp_args->cb_fn) { 3010 remove_hwqp_args->cb_fn(args->port_handle, SPDK_FC_HW_PORT_OFFLINE, args->cb_ctx, err); 3011 } 3012 3013 free(remove_hwqp_args); 3014 } 3015 3016 /* 3017 * Offline a HW port. 3018 */ 3019 static void 3020 nvmf_fc_adm_evnt_hw_port_offline(void *arg) 3021 { 3022 ASSERT_SPDK_FC_MAIN_THREAD(); 3023 struct spdk_nvmf_fc_port *fc_port = NULL; 3024 struct spdk_nvmf_fc_hwqp *hwqp = NULL; 3025 struct spdk_nvmf_fc_adm_api_data *api_data = (struct spdk_nvmf_fc_adm_api_data *)arg; 3026 struct spdk_nvmf_fc_hw_port_offline_args *args = (struct spdk_nvmf_fc_hw_port_offline_args *) 3027 api_data->api_args; 3028 struct spdk_nvmf_fc_remove_hwqp_cb_args *remove_hwqp_args; 3029 int i = 0; 3030 int err = 0; 3031 3032 fc_port = nvmf_fc_port_lookup(args->port_handle); 3033 if (fc_port) { 3034 /* Set the port state to offline, if it is not already. */ 3035 err = nvmf_fc_port_set_offline(fc_port); 3036 if (err != 0) { 3037 SPDK_ERRLOG("Hw port %d already offline. err = %d\n", fc_port->port_hdl, err); 3038 err = 0; 3039 goto out; 3040 } 3041 3042 remove_hwqp_args = calloc(1, sizeof(struct spdk_nvmf_fc_remove_hwqp_cb_args)); 3043 if (!remove_hwqp_args) { 3044 SPDK_ERRLOG("Failed to alloc memory for remove_hwqp_args\n"); 3045 err = -ENOMEM; 3046 goto out; 3047 } 3048 remove_hwqp_args->cb_fn = api_data->cb_func; 3049 remove_hwqp_args->cb_args = api_data->api_args; 3050 remove_hwqp_args->pending_remove_hwqp = fc_port->num_io_queues; 3051 3052 hwqp = &fc_port->ls_queue; 3053 (void)nvmf_fc_hwqp_set_offline(hwqp); 3054 3055 /* Remove poller for all the io queues. */ 3056 for (i = 0; i < (int)fc_port->num_io_queues; i++) { 3057 hwqp = &fc_port->io_queues[i]; 3058 (void)nvmf_fc_hwqp_set_offline(hwqp); 3059 nvmf_fc_poll_group_remove_hwqp(hwqp, nvmf_fc_adm_hw_port_offline_cb, 3060 remove_hwqp_args); 3061 } 3062 3063 free(arg); 3064 3065 /* Wait until all the hwqps are removed from poll groups. */ 3066 return; 3067 } else { 3068 SPDK_ERRLOG("Unable to find the SPDK FC port %d\n", args->port_handle); 3069 err = -EINVAL; 3070 } 3071 out: 3072 if (api_data->cb_func != NULL) { 3073 (void)api_data->cb_func(args->port_handle, SPDK_FC_HW_PORT_OFFLINE, args->cb_ctx, err); 3074 } 3075 3076 free(arg); 3077 3078 SPDK_DEBUGLOG(nvmf_fc_adm_api, "HW port %d offline done, rc = %d.\n", args->port_handle, 3079 err); 3080 } 3081 3082 struct nvmf_fc_add_rem_listener_ctx { 3083 struct spdk_nvmf_subsystem *subsystem; 3084 bool add_listener; 3085 struct spdk_nvme_transport_id trid; 3086 }; 3087 3088 static void 3089 nvmf_fc_adm_subsystem_resume_cb(struct spdk_nvmf_subsystem *subsystem, void *cb_arg, int status) 3090 { 3091 ASSERT_SPDK_FC_MAIN_THREAD(); 3092 struct nvmf_fc_add_rem_listener_ctx *ctx = (struct nvmf_fc_add_rem_listener_ctx *)cb_arg; 3093 free(ctx); 3094 } 3095 3096 static void 3097 nvmf_fc_adm_listen_done(void *cb_arg, int status) 3098 { 3099 ASSERT_SPDK_FC_MAIN_THREAD(); 3100 struct nvmf_fc_add_rem_listener_ctx *ctx = cb_arg; 3101 3102 if (spdk_nvmf_subsystem_resume(ctx->subsystem, nvmf_fc_adm_subsystem_resume_cb, ctx)) { 3103 SPDK_ERRLOG("Failed to resume subsystem: %s\n", ctx->subsystem->subnqn); 3104 free(ctx); 3105 } 3106 } 3107 3108 static void 3109 nvmf_fc_adm_subsystem_paused_cb(struct spdk_nvmf_subsystem *subsystem, void *cb_arg, int status) 3110 { 3111 ASSERT_SPDK_FC_MAIN_THREAD(); 3112 struct nvmf_fc_add_rem_listener_ctx *ctx = (struct nvmf_fc_add_rem_listener_ctx *)cb_arg; 3113 3114 if (ctx->add_listener) { 3115 spdk_nvmf_subsystem_add_listener(subsystem, &ctx->trid, nvmf_fc_adm_listen_done, ctx); 3116 } else { 3117 spdk_nvmf_subsystem_remove_listener(subsystem, &ctx->trid); 3118 nvmf_fc_adm_listen_done(ctx, 0); 3119 } 3120 } 3121 3122 static int 3123 nvmf_fc_adm_add_rem_nport_listener(struct spdk_nvmf_fc_nport *nport, bool add) 3124 { 3125 struct spdk_nvmf_tgt *tgt = nvmf_fc_get_tgt(); 3126 struct spdk_nvmf_subsystem *subsystem; 3127 struct spdk_nvmf_listen_opts opts; 3128 3129 if (!tgt) { 3130 SPDK_ERRLOG("No nvmf target defined\n"); 3131 return -EINVAL; 3132 } 3133 3134 spdk_nvmf_listen_opts_init(&opts, sizeof(opts)); 3135 3136 subsystem = spdk_nvmf_subsystem_get_first(tgt); 3137 while (subsystem) { 3138 struct nvmf_fc_add_rem_listener_ctx *ctx; 3139 3140 if (spdk_nvmf_subsystem_any_listener_allowed(subsystem) == true) { 3141 ctx = calloc(1, sizeof(struct nvmf_fc_add_rem_listener_ctx)); 3142 if (ctx) { 3143 ctx->add_listener = add; 3144 ctx->subsystem = subsystem; 3145 nvmf_fc_create_trid(&ctx->trid, 3146 nport->fc_nodename.u.wwn, 3147 nport->fc_portname.u.wwn); 3148 3149 if (spdk_nvmf_tgt_listen_ext(subsystem->tgt, &ctx->trid, &opts)) { 3150 SPDK_ERRLOG("Failed to add transport address %s to tgt listeners\n", 3151 ctx->trid.traddr); 3152 free(ctx); 3153 } else if (spdk_nvmf_subsystem_pause(subsystem, 3154 0, 3155 nvmf_fc_adm_subsystem_paused_cb, 3156 ctx)) { 3157 SPDK_ERRLOG("Failed to pause subsystem: %s\n", 3158 subsystem->subnqn); 3159 free(ctx); 3160 } 3161 } 3162 } 3163 3164 subsystem = spdk_nvmf_subsystem_get_next(subsystem); 3165 } 3166 3167 return 0; 3168 } 3169 3170 /* 3171 * Create a Nport. 3172 */ 3173 static void 3174 nvmf_fc_adm_evnt_nport_create(void *arg) 3175 { 3176 ASSERT_SPDK_FC_MAIN_THREAD(); 3177 struct spdk_nvmf_fc_adm_api_data *api_data = (struct spdk_nvmf_fc_adm_api_data *)arg; 3178 struct spdk_nvmf_fc_nport_create_args *args = (struct spdk_nvmf_fc_nport_create_args *) 3179 api_data->api_args; 3180 struct spdk_nvmf_fc_nport *nport = NULL; 3181 struct spdk_nvmf_fc_port *fc_port = NULL; 3182 int err = 0; 3183 3184 /* 3185 * Get the physical port. 3186 */ 3187 fc_port = nvmf_fc_port_lookup(args->port_handle); 3188 if (fc_port == NULL) { 3189 err = -EINVAL; 3190 goto out; 3191 } 3192 3193 /* 3194 * Check for duplicate initialization. 3195 */ 3196 nport = nvmf_fc_nport_find(args->port_handle, args->nport_handle); 3197 if (nport != NULL) { 3198 SPDK_ERRLOG("Duplicate SPDK FC nport %d exists for FC port:%d.\n", args->nport_handle, 3199 args->port_handle); 3200 err = -EINVAL; 3201 goto out; 3202 } 3203 3204 /* 3205 * Get the memory to instantiate a fc nport. 3206 */ 3207 nport = calloc(1, sizeof(struct spdk_nvmf_fc_nport)); 3208 if (nport == NULL) { 3209 SPDK_ERRLOG("Failed to allocate memory for nport %d.\n", 3210 args->nport_handle); 3211 err = -ENOMEM; 3212 goto out; 3213 } 3214 3215 /* 3216 * Initialize the contents for the nport 3217 */ 3218 nport->nport_hdl = args->nport_handle; 3219 nport->port_hdl = args->port_handle; 3220 nport->nport_state = SPDK_NVMF_FC_OBJECT_CREATED; 3221 nport->fc_nodename = args->fc_nodename; 3222 nport->fc_portname = args->fc_portname; 3223 nport->d_id = args->d_id; 3224 nport->fc_port = nvmf_fc_port_lookup(args->port_handle); 3225 3226 (void)nvmf_fc_nport_set_state(nport, SPDK_NVMF_FC_OBJECT_CREATED); 3227 TAILQ_INIT(&nport->rem_port_list); 3228 nport->rport_count = 0; 3229 TAILQ_INIT(&nport->fc_associations); 3230 nport->assoc_count = 0; 3231 3232 /* 3233 * Populate the nport address (as listening address) to the nvmf subsystems. 3234 */ 3235 err = nvmf_fc_adm_add_rem_nport_listener(nport, true); 3236 3237 (void)nvmf_fc_port_add_nport(fc_port, nport); 3238 out: 3239 if (err && nport) { 3240 free(nport); 3241 } 3242 3243 if (api_data->cb_func != NULL) { 3244 (void)api_data->cb_func(args->port_handle, SPDK_FC_NPORT_CREATE, args->cb_ctx, err); 3245 } 3246 3247 free(arg); 3248 } 3249 3250 static void 3251 nvmf_fc_adm_delete_nport_cb(uint8_t port_handle, enum spdk_fc_event event_type, 3252 void *cb_args, int spdk_err) 3253 { 3254 ASSERT_SPDK_FC_MAIN_THREAD(); 3255 struct spdk_nvmf_fc_adm_nport_del_cb_data *cb_data = cb_args; 3256 struct spdk_nvmf_fc_nport *nport = cb_data->nport; 3257 spdk_nvmf_fc_callback cb_func = cb_data->fc_cb_func; 3258 int err = 0; 3259 uint16_t nport_hdl = 0; 3260 char log_str[256]; 3261 3262 /* 3263 * Assert on any delete failure. 3264 */ 3265 if (nport == NULL) { 3266 SPDK_ERRLOG("Nport delete callback returned null nport"); 3267 DEV_VERIFY(!"nport is null."); 3268 goto out; 3269 } 3270 3271 nport_hdl = nport->nport_hdl; 3272 if (0 != spdk_err) { 3273 SPDK_ERRLOG("Nport delete callback returned error. FC Port: " 3274 "%d, Nport: %d\n", 3275 nport->port_hdl, nport->nport_hdl); 3276 DEV_VERIFY(!"nport delete callback error."); 3277 } 3278 3279 /* 3280 * Free the nport if this is the last rport being deleted and 3281 * execute the callback(s). 3282 */ 3283 if (nvmf_fc_nport_has_no_rport(nport)) { 3284 if (0 != nport->assoc_count) { 3285 SPDK_ERRLOG("association count != 0\n"); 3286 DEV_VERIFY(!"association count != 0"); 3287 } 3288 3289 err = nvmf_fc_port_remove_nport(nport->fc_port, nport); 3290 if (0 != err) { 3291 SPDK_ERRLOG("Nport delete callback: Failed to remove " 3292 "nport from nport list. FC Port:%d Nport:%d\n", 3293 nport->port_hdl, nport->nport_hdl); 3294 } 3295 /* Free the nport */ 3296 free(nport); 3297 3298 if (cb_func != NULL) { 3299 (void)cb_func(cb_data->port_handle, SPDK_FC_NPORT_DELETE, cb_data->fc_cb_ctx, spdk_err); 3300 } 3301 free(cb_data); 3302 } 3303 out: 3304 snprintf(log_str, sizeof(log_str), 3305 "port:%d nport:%d delete cb exit, evt_type:%d rc:%d.\n", 3306 port_handle, nport_hdl, event_type, spdk_err); 3307 3308 if (err != 0) { 3309 SPDK_ERRLOG("%s", log_str); 3310 } else { 3311 SPDK_DEBUGLOG(nvmf_fc_adm_api, "%s", log_str); 3312 } 3313 } 3314 3315 /* 3316 * Delete Nport. 3317 */ 3318 static void 3319 nvmf_fc_adm_evnt_nport_delete(void *arg) 3320 { 3321 ASSERT_SPDK_FC_MAIN_THREAD(); 3322 struct spdk_nvmf_fc_adm_api_data *api_data = (struct spdk_nvmf_fc_adm_api_data *)arg; 3323 struct spdk_nvmf_fc_nport_delete_args *args = (struct spdk_nvmf_fc_nport_delete_args *) 3324 api_data->api_args; 3325 struct spdk_nvmf_fc_nport *nport = NULL; 3326 struct spdk_nvmf_fc_adm_nport_del_cb_data *cb_data = NULL; 3327 struct spdk_nvmf_fc_remote_port_info *rport_iter = NULL; 3328 int err = 0; 3329 uint32_t rport_cnt = 0; 3330 int rc = 0; 3331 3332 /* 3333 * Make sure that the nport exists. 3334 */ 3335 nport = nvmf_fc_nport_find(args->port_handle, args->nport_handle); 3336 if (nport == NULL) { 3337 SPDK_ERRLOG("Unable to find the SPDK FC nport %d for FC Port: %d.\n", args->nport_handle, 3338 args->port_handle); 3339 err = -EINVAL; 3340 goto out; 3341 } 3342 3343 /* 3344 * Allocate memory for callback data. 3345 */ 3346 cb_data = calloc(1, sizeof(struct spdk_nvmf_fc_adm_nport_del_cb_data)); 3347 if (NULL == cb_data) { 3348 SPDK_ERRLOG("Failed to allocate memory for cb_data %d.\n", args->nport_handle); 3349 err = -ENOMEM; 3350 goto out; 3351 } 3352 3353 cb_data->nport = nport; 3354 cb_data->port_handle = args->port_handle; 3355 cb_data->fc_cb_func = api_data->cb_func; 3356 cb_data->fc_cb_ctx = args->cb_ctx; 3357 3358 /* 3359 * Begin nport tear down 3360 */ 3361 if (nport->nport_state == SPDK_NVMF_FC_OBJECT_CREATED) { 3362 (void)nvmf_fc_nport_set_state(nport, SPDK_NVMF_FC_OBJECT_TO_BE_DELETED); 3363 } else if (nport->nport_state == SPDK_NVMF_FC_OBJECT_TO_BE_DELETED) { 3364 /* 3365 * Deletion of this nport already in progress. Register callback 3366 * and return. 3367 */ 3368 /* TODO: Register callback in callback vector. For now, set the error and return. */ 3369 err = -ENODEV; 3370 goto out; 3371 } else { 3372 /* nport partially created/deleted */ 3373 DEV_VERIFY(nport->nport_state == SPDK_NVMF_FC_OBJECT_ZOMBIE); 3374 DEV_VERIFY(0 != "Nport in zombie state"); 3375 err = -ENODEV; 3376 goto out; 3377 } 3378 3379 /* 3380 * Remove this nport from listening addresses across subsystems 3381 */ 3382 rc = nvmf_fc_adm_add_rem_nport_listener(nport, false); 3383 3384 if (0 != rc) { 3385 err = nvmf_fc_nport_set_state(nport, SPDK_NVMF_FC_OBJECT_ZOMBIE); 3386 SPDK_ERRLOG("Unable to remove the listen addr in the subsystems for nport %d.\n", 3387 nport->nport_hdl); 3388 goto out; 3389 } 3390 3391 /* 3392 * Delete all the remote ports (if any) for the nport 3393 */ 3394 /* TODO - Need to do this with a "first" and a "next" accessor function 3395 * for completeness. Look at app-subsystem as examples. 3396 */ 3397 if (nvmf_fc_nport_has_no_rport(nport)) { 3398 /* No rports to delete. Complete the nport deletion. */ 3399 nvmf_fc_adm_delete_nport_cb(nport->port_hdl, SPDK_FC_NPORT_DELETE, cb_data, 0); 3400 goto out; 3401 } 3402 3403 TAILQ_FOREACH(rport_iter, &nport->rem_port_list, link) { 3404 struct spdk_nvmf_fc_hw_i_t_delete_args *it_del_args = calloc( 3405 1, sizeof(struct spdk_nvmf_fc_hw_i_t_delete_args)); 3406 3407 if (it_del_args == NULL) { 3408 err = -ENOMEM; 3409 SPDK_ERRLOG("SPDK_FC_IT_DELETE no mem to delete rport with rpi:%d s_id:%d.\n", 3410 rport_iter->rpi, rport_iter->s_id); 3411 DEV_VERIFY(!"SPDK_FC_IT_DELETE failed, cannot allocate memory"); 3412 goto out; 3413 } 3414 3415 rport_cnt++; 3416 it_del_args->port_handle = nport->port_hdl; 3417 it_del_args->nport_handle = nport->nport_hdl; 3418 it_del_args->cb_ctx = (void *)cb_data; 3419 it_del_args->rpi = rport_iter->rpi; 3420 it_del_args->s_id = rport_iter->s_id; 3421 3422 err = nvmf_fc_main_enqueue_event(SPDK_FC_IT_DELETE, (void *)it_del_args, 3423 nvmf_fc_adm_delete_nport_cb); 3424 if (err) { 3425 free(it_del_args); 3426 } 3427 } 3428 3429 out: 3430 /* On failure, execute the callback function now */ 3431 if ((err != 0) || (rc != 0)) { 3432 SPDK_ERRLOG("NPort %d delete failed, error:%d, fc port:%d, " 3433 "rport_cnt:%d rc:%d.\n", 3434 args->nport_handle, err, args->port_handle, 3435 rport_cnt, rc); 3436 if (cb_data) { 3437 free(cb_data); 3438 } 3439 if (api_data->cb_func != NULL) { 3440 (void)api_data->cb_func(args->port_handle, SPDK_FC_NPORT_DELETE, args->cb_ctx, err); 3441 } 3442 3443 } else { 3444 SPDK_DEBUGLOG(nvmf_fc_adm_api, 3445 "NPort %d delete done successfully, fc port:%d. " 3446 "rport_cnt:%d\n", 3447 args->nport_handle, args->port_handle, rport_cnt); 3448 } 3449 3450 free(arg); 3451 } 3452 3453 /* 3454 * Process an PRLI/IT add. 3455 */ 3456 static void 3457 nvmf_fc_adm_evnt_i_t_add(void *arg) 3458 { 3459 ASSERT_SPDK_FC_MAIN_THREAD(); 3460 struct spdk_nvmf_fc_adm_api_data *api_data = (struct spdk_nvmf_fc_adm_api_data *)arg; 3461 struct spdk_nvmf_fc_hw_i_t_add_args *args = (struct spdk_nvmf_fc_hw_i_t_add_args *) 3462 api_data->api_args; 3463 struct spdk_nvmf_fc_nport *nport = NULL; 3464 struct spdk_nvmf_fc_remote_port_info *rport_iter = NULL; 3465 struct spdk_nvmf_fc_remote_port_info *rport = NULL; 3466 int err = 0; 3467 3468 /* 3469 * Make sure the nport port exists. 3470 */ 3471 nport = nvmf_fc_nport_find(args->port_handle, args->nport_handle); 3472 if (nport == NULL) { 3473 SPDK_ERRLOG("Unable to find the SPDK FC nport %d\n", args->nport_handle); 3474 err = -EINVAL; 3475 goto out; 3476 } 3477 3478 /* 3479 * Check for duplicate i_t_add. 3480 */ 3481 TAILQ_FOREACH(rport_iter, &nport->rem_port_list, link) { 3482 if ((rport_iter->s_id == args->s_id) && (rport_iter->rpi == args->rpi)) { 3483 SPDK_ERRLOG("Duplicate rport found for FC nport %d: sid:%d rpi:%d\n", 3484 args->nport_handle, rport_iter->s_id, rport_iter->rpi); 3485 err = -EEXIST; 3486 goto out; 3487 } 3488 } 3489 3490 /* 3491 * Get the memory to instantiate the remote port 3492 */ 3493 rport = calloc(1, sizeof(struct spdk_nvmf_fc_remote_port_info)); 3494 if (rport == NULL) { 3495 SPDK_ERRLOG("Memory allocation for rem port failed.\n"); 3496 err = -ENOMEM; 3497 goto out; 3498 } 3499 3500 /* 3501 * Initialize the contents for the rport 3502 */ 3503 (void)nvmf_fc_rport_set_state(rport, SPDK_NVMF_FC_OBJECT_CREATED); 3504 rport->s_id = args->s_id; 3505 rport->rpi = args->rpi; 3506 rport->fc_nodename = args->fc_nodename; 3507 rport->fc_portname = args->fc_portname; 3508 3509 /* 3510 * Add remote port to nport 3511 */ 3512 if (nvmf_fc_nport_add_rem_port(nport, rport) != 0) { 3513 DEV_VERIFY(!"Error while adding rport to list"); 3514 }; 3515 3516 /* 3517 * TODO: Do we validate the initiators service parameters? 3518 */ 3519 3520 /* 3521 * Get the targets service parameters from the library 3522 * to return back to the driver. 3523 */ 3524 args->target_prli_info = nvmf_fc_get_prli_service_params(); 3525 3526 out: 3527 if (api_data->cb_func != NULL) { 3528 /* 3529 * Passing pointer to the args struct as the first argument. 3530 * The cb_func should handle this appropriately. 3531 */ 3532 (void)api_data->cb_func(args->port_handle, SPDK_FC_IT_ADD, args->cb_ctx, err); 3533 } 3534 3535 free(arg); 3536 3537 SPDK_DEBUGLOG(nvmf_fc_adm_api, 3538 "IT add on nport %d done, rc = %d.\n", 3539 args->nport_handle, err); 3540 } 3541 3542 /** 3543 * Process a IT delete. 3544 */ 3545 static void 3546 nvmf_fc_adm_evnt_i_t_delete(void *arg) 3547 { 3548 ASSERT_SPDK_FC_MAIN_THREAD(); 3549 struct spdk_nvmf_fc_adm_api_data *api_data = (struct spdk_nvmf_fc_adm_api_data *)arg; 3550 struct spdk_nvmf_fc_hw_i_t_delete_args *args = (struct spdk_nvmf_fc_hw_i_t_delete_args *) 3551 api_data->api_args; 3552 int rc = 0; 3553 struct spdk_nvmf_fc_nport *nport = NULL; 3554 struct spdk_nvmf_fc_adm_i_t_del_cb_data *cb_data = NULL; 3555 struct spdk_nvmf_fc_remote_port_info *rport_iter = NULL; 3556 struct spdk_nvmf_fc_remote_port_info *rport = NULL; 3557 uint32_t num_rport = 0; 3558 char log_str[256]; 3559 3560 SPDK_DEBUGLOG(nvmf_fc_adm_api, "IT delete on nport:%d begin.\n", args->nport_handle); 3561 3562 /* 3563 * Make sure the nport port exists. If it does not, error out. 3564 */ 3565 nport = nvmf_fc_nport_find(args->port_handle, args->nport_handle); 3566 if (nport == NULL) { 3567 SPDK_ERRLOG("Unable to find the SPDK FC nport:%d\n", args->nport_handle); 3568 rc = -EINVAL; 3569 goto out; 3570 } 3571 3572 /* 3573 * Find this ITN / rport (remote port). 3574 */ 3575 TAILQ_FOREACH(rport_iter, &nport->rem_port_list, link) { 3576 num_rport++; 3577 if ((rport_iter->s_id == args->s_id) && 3578 (rport_iter->rpi == args->rpi) && 3579 (rport_iter->rport_state == SPDK_NVMF_FC_OBJECT_CREATED)) { 3580 rport = rport_iter; 3581 break; 3582 } 3583 } 3584 3585 /* 3586 * We should find either zero or exactly one rport. 3587 * 3588 * If we find zero rports, that means that a previous request has 3589 * removed the rport by the time we reached here. In this case, 3590 * simply return out. 3591 */ 3592 if (rport == NULL) { 3593 rc = -ENODEV; 3594 goto out; 3595 } 3596 3597 /* 3598 * We have the rport slated for deletion. At this point clean up 3599 * any LS requests that are sitting in the pending list. Do this 3600 * first, then, set the states of the rport so that new LS requests 3601 * are not accepted. Then start the cleanup. 3602 */ 3603 nvmf_fc_delete_ls_pending(&(nport->fc_port->ls_queue), nport, rport); 3604 3605 /* 3606 * We have found exactly one rport. Allocate memory for callback data. 3607 */ 3608 cb_data = calloc(1, sizeof(struct spdk_nvmf_fc_adm_i_t_del_cb_data)); 3609 if (NULL == cb_data) { 3610 SPDK_ERRLOG("Failed to allocate memory for cb_data for nport:%d.\n", args->nport_handle); 3611 rc = -ENOMEM; 3612 goto out; 3613 } 3614 3615 cb_data->nport = nport; 3616 cb_data->rport = rport; 3617 cb_data->port_handle = args->port_handle; 3618 cb_data->fc_cb_func = api_data->cb_func; 3619 cb_data->fc_cb_ctx = args->cb_ctx; 3620 3621 /* 3622 * Validate rport object state. 3623 */ 3624 if (rport->rport_state == SPDK_NVMF_FC_OBJECT_CREATED) { 3625 (void)nvmf_fc_rport_set_state(rport, SPDK_NVMF_FC_OBJECT_TO_BE_DELETED); 3626 } else if (rport->rport_state == SPDK_NVMF_FC_OBJECT_TO_BE_DELETED) { 3627 /* 3628 * Deletion of this rport already in progress. Register callback 3629 * and return. 3630 */ 3631 /* TODO: Register callback in callback vector. For now, set the error and return. */ 3632 rc = -ENODEV; 3633 goto out; 3634 } else { 3635 /* rport partially created/deleted */ 3636 DEV_VERIFY(rport->rport_state == SPDK_NVMF_FC_OBJECT_ZOMBIE); 3637 DEV_VERIFY(!"Invalid rport_state"); 3638 rc = -ENODEV; 3639 goto out; 3640 } 3641 3642 /* 3643 * We have successfully found a rport to delete. Call 3644 * nvmf_fc_i_t_delete_assoc(), which will perform further 3645 * IT-delete processing as well as free the cb_data. 3646 */ 3647 nvmf_fc_adm_i_t_delete_assoc(nport, rport, nvmf_fc_adm_i_t_delete_cb, 3648 (void *)cb_data); 3649 3650 out: 3651 if (rc != 0) { 3652 /* 3653 * We have entered here because either we encountered an 3654 * error, or we did not find a rport to delete. 3655 * As a result, we will not call the function 3656 * nvmf_fc_i_t_delete_assoc() for further IT-delete 3657 * processing. Therefore, execute the callback function now. 3658 */ 3659 if (cb_data) { 3660 free(cb_data); 3661 } 3662 if (api_data->cb_func != NULL) { 3663 (void)api_data->cb_func(args->port_handle, SPDK_FC_IT_DELETE, args->cb_ctx, rc); 3664 } 3665 } 3666 3667 snprintf(log_str, sizeof(log_str), 3668 "IT delete on nport:%d end. num_rport:%d rc = %d.\n", 3669 args->nport_handle, num_rport, rc); 3670 3671 if (rc != 0) { 3672 SPDK_ERRLOG("%s", log_str); 3673 } else { 3674 SPDK_DEBUGLOG(nvmf_fc_adm_api, "%s", log_str); 3675 } 3676 3677 free(arg); 3678 } 3679 3680 /* 3681 * Process ABTS received 3682 */ 3683 static void 3684 nvmf_fc_adm_evnt_abts_recv(void *arg) 3685 { 3686 ASSERT_SPDK_FC_MAIN_THREAD(); 3687 struct spdk_nvmf_fc_adm_api_data *api_data = (struct spdk_nvmf_fc_adm_api_data *)arg; 3688 struct spdk_nvmf_fc_abts_args *args = (struct spdk_nvmf_fc_abts_args *)api_data->api_args; 3689 struct spdk_nvmf_fc_nport *nport = NULL; 3690 int err = 0; 3691 3692 SPDK_DEBUGLOG(nvmf_fc_adm_api, "FC ABTS received. RPI:%d, oxid:%d, rxid:%d\n", args->rpi, 3693 args->oxid, args->rxid); 3694 3695 /* 3696 * 1. Make sure the nport port exists. 3697 */ 3698 nport = nvmf_fc_nport_find(args->port_handle, args->nport_handle); 3699 if (nport == NULL) { 3700 SPDK_ERRLOG("Unable to find the SPDK FC nport %d\n", args->nport_handle); 3701 err = -EINVAL; 3702 goto out; 3703 } 3704 3705 /* 3706 * 2. If the nport is in the process of being deleted, drop the ABTS. 3707 */ 3708 if (nport->nport_state == SPDK_NVMF_FC_OBJECT_TO_BE_DELETED) { 3709 SPDK_DEBUGLOG(nvmf_fc_adm_api, 3710 "FC ABTS dropped because the nport is being deleted; RPI:%d, oxid:%d, rxid:%d\n", 3711 args->rpi, args->oxid, args->rxid); 3712 err = 0; 3713 goto out; 3714 3715 } 3716 3717 /* 3718 * 3. Pass the received ABTS-LS to the library for handling. 3719 */ 3720 nvmf_fc_handle_abts_frame(nport, args->rpi, args->oxid, args->rxid); 3721 3722 out: 3723 if (api_data->cb_func != NULL) { 3724 /* 3725 * Passing pointer to the args struct as the first argument. 3726 * The cb_func should handle this appropriately. 3727 */ 3728 (void)api_data->cb_func(args->port_handle, SPDK_FC_ABTS_RECV, args, err); 3729 } else { 3730 /* No callback set, free the args */ 3731 free(args); 3732 } 3733 3734 free(arg); 3735 } 3736 3737 /* 3738 * Callback function for hw port quiesce. 3739 */ 3740 static void 3741 nvmf_fc_adm_hw_port_quiesce_reset_cb(void *ctx, int err) 3742 { 3743 ASSERT_SPDK_FC_MAIN_THREAD(); 3744 struct spdk_nvmf_fc_adm_hw_port_reset_ctx *reset_ctx = 3745 (struct spdk_nvmf_fc_adm_hw_port_reset_ctx *)ctx; 3746 struct spdk_nvmf_fc_hw_port_reset_args *args = reset_ctx->reset_args; 3747 spdk_nvmf_fc_callback cb_func = reset_ctx->reset_cb_func; 3748 struct spdk_nvmf_fc_queue_dump_info dump_info; 3749 struct spdk_nvmf_fc_port *fc_port = NULL; 3750 char *dump_buf = NULL; 3751 uint32_t dump_buf_size = SPDK_FC_HW_DUMP_BUF_SIZE; 3752 3753 /* 3754 * Free the callback context struct. 3755 */ 3756 free(ctx); 3757 3758 if (err != 0) { 3759 SPDK_ERRLOG("Port %d quiesce operation failed.\n", args->port_handle); 3760 goto out; 3761 } 3762 3763 if (args->dump_queues == false) { 3764 /* 3765 * Queues need not be dumped. 3766 */ 3767 goto out; 3768 } 3769 3770 SPDK_ERRLOG("Dumping queues for HW port %d\n", args->port_handle); 3771 3772 /* 3773 * Get the fc port. 3774 */ 3775 fc_port = nvmf_fc_port_lookup(args->port_handle); 3776 if (fc_port == NULL) { 3777 SPDK_ERRLOG("Unable to find the SPDK FC port %d\n", args->port_handle); 3778 err = -EINVAL; 3779 goto out; 3780 } 3781 3782 /* 3783 * Allocate memory for the dump buffer. 3784 * This memory will be freed by FCT. 3785 */ 3786 dump_buf = (char *)calloc(1, dump_buf_size); 3787 if (dump_buf == NULL) { 3788 err = -ENOMEM; 3789 SPDK_ERRLOG("Memory allocation for dump buffer failed, SPDK FC port %d\n", args->port_handle); 3790 goto out; 3791 } 3792 *args->dump_buf = (uint32_t *)dump_buf; 3793 dump_info.buffer = dump_buf; 3794 dump_info.offset = 0; 3795 3796 /* 3797 * Add the dump reason to the top of the buffer. 3798 */ 3799 nvmf_fc_dump_buf_print(&dump_info, "%s\n", args->reason); 3800 3801 /* 3802 * Dump the hwqp. 3803 */ 3804 nvmf_fc_dump_all_queues(&fc_port->ls_queue, fc_port->io_queues, 3805 fc_port->num_io_queues, &dump_info); 3806 3807 out: 3808 SPDK_DEBUGLOG(nvmf_fc_adm_api, "HW port %d reset done, queues_dumped = %d, rc = %d.\n", 3809 args->port_handle, args->dump_queues, err); 3810 3811 if (cb_func != NULL) { 3812 (void)cb_func(args->port_handle, SPDK_FC_HW_PORT_RESET, args->cb_ctx, err); 3813 } 3814 } 3815 3816 /* 3817 * HW port reset 3818 3819 */ 3820 static void 3821 nvmf_fc_adm_evnt_hw_port_reset(void *arg) 3822 { 3823 ASSERT_SPDK_FC_MAIN_THREAD(); 3824 struct spdk_nvmf_fc_adm_api_data *api_data = (struct spdk_nvmf_fc_adm_api_data *)arg; 3825 struct spdk_nvmf_fc_hw_port_reset_args *args = (struct spdk_nvmf_fc_hw_port_reset_args *) 3826 api_data->api_args; 3827 struct spdk_nvmf_fc_port *fc_port = NULL; 3828 struct spdk_nvmf_fc_adm_hw_port_reset_ctx *ctx = NULL; 3829 int err = 0; 3830 3831 SPDK_DEBUGLOG(nvmf_fc_adm_api, "HW port %d dump\n", args->port_handle); 3832 3833 /* 3834 * Make sure the physical port exists. 3835 */ 3836 fc_port = nvmf_fc_port_lookup(args->port_handle); 3837 if (fc_port == NULL) { 3838 SPDK_ERRLOG("Unable to find the SPDK FC port %d\n", args->port_handle); 3839 err = -EINVAL; 3840 goto out; 3841 } 3842 3843 /* 3844 * Save the reset event args and the callback in a context struct. 3845 */ 3846 ctx = calloc(1, sizeof(struct spdk_nvmf_fc_adm_hw_port_reset_ctx)); 3847 3848 if (ctx == NULL) { 3849 err = -ENOMEM; 3850 SPDK_ERRLOG("Memory allocation for reset ctx failed, SPDK FC port %d\n", args->port_handle); 3851 goto fail; 3852 } 3853 3854 ctx->reset_args = args; 3855 ctx->reset_cb_func = api_data->cb_func; 3856 3857 /* 3858 * Quiesce the hw port. 3859 */ 3860 err = nvmf_fc_adm_hw_port_quiesce(fc_port, ctx, nvmf_fc_adm_hw_port_quiesce_reset_cb); 3861 if (err != 0) { 3862 goto fail; 3863 } 3864 3865 /* 3866 * Once the ports are successfully quiesced the reset processing 3867 * will continue in the callback function: spdk_fc_port_quiesce_reset_cb 3868 */ 3869 return; 3870 fail: 3871 free(ctx); 3872 3873 out: 3874 SPDK_DEBUGLOG(nvmf_fc_adm_api, "HW port %d dump done, rc = %d.\n", args->port_handle, 3875 err); 3876 3877 if (api_data->cb_func != NULL) { 3878 (void)api_data->cb_func(args->port_handle, SPDK_FC_HW_PORT_RESET, args->cb_ctx, err); 3879 } 3880 3881 free(arg); 3882 } 3883 3884 static inline void 3885 nvmf_fc_adm_run_on_main_thread(spdk_msg_fn fn, void *args) 3886 { 3887 if (nvmf_fc_get_main_thread()) { 3888 spdk_thread_send_msg(nvmf_fc_get_main_thread(), fn, args); 3889 } 3890 } 3891 3892 /* 3893 * Queue up an event in the SPDK main threads event queue. 3894 * Used by the FC driver to notify the SPDK main thread of FC related events. 3895 */ 3896 int 3897 nvmf_fc_main_enqueue_event(enum spdk_fc_event event_type, void *args, 3898 spdk_nvmf_fc_callback cb_func) 3899 { 3900 int err = 0; 3901 struct spdk_nvmf_fc_adm_api_data *api_data = NULL; 3902 spdk_msg_fn event_fn = NULL; 3903 3904 SPDK_DEBUGLOG(nvmf_fc_adm_api, "Enqueue event %d.\n", event_type); 3905 3906 if (event_type >= SPDK_FC_EVENT_MAX) { 3907 SPDK_ERRLOG("Invalid spdk_fc_event_t %d.\n", event_type); 3908 err = -EINVAL; 3909 goto done; 3910 } 3911 3912 if (args == NULL) { 3913 SPDK_ERRLOG("Null args for event %d.\n", event_type); 3914 err = -EINVAL; 3915 goto done; 3916 } 3917 3918 api_data = calloc(1, sizeof(*api_data)); 3919 3920 if (api_data == NULL) { 3921 SPDK_ERRLOG("Failed to alloc api data for event %d.\n", event_type); 3922 err = -ENOMEM; 3923 goto done; 3924 } 3925 3926 api_data->api_args = args; 3927 api_data->cb_func = cb_func; 3928 3929 switch (event_type) { 3930 case SPDK_FC_HW_PORT_INIT: 3931 event_fn = nvmf_fc_adm_evnt_hw_port_init; 3932 break; 3933 3934 case SPDK_FC_HW_PORT_FREE: 3935 event_fn = nvmf_fc_adm_evnt_hw_port_free; 3936 break; 3937 3938 case SPDK_FC_HW_PORT_ONLINE: 3939 event_fn = nvmf_fc_adm_evnt_hw_port_online; 3940 break; 3941 3942 case SPDK_FC_HW_PORT_OFFLINE: 3943 event_fn = nvmf_fc_adm_evnt_hw_port_offline; 3944 break; 3945 3946 case SPDK_FC_NPORT_CREATE: 3947 event_fn = nvmf_fc_adm_evnt_nport_create; 3948 break; 3949 3950 case SPDK_FC_NPORT_DELETE: 3951 event_fn = nvmf_fc_adm_evnt_nport_delete; 3952 break; 3953 3954 case SPDK_FC_IT_ADD: 3955 event_fn = nvmf_fc_adm_evnt_i_t_add; 3956 break; 3957 3958 case SPDK_FC_IT_DELETE: 3959 event_fn = nvmf_fc_adm_evnt_i_t_delete; 3960 break; 3961 3962 case SPDK_FC_ABTS_RECV: 3963 event_fn = nvmf_fc_adm_evnt_abts_recv; 3964 break; 3965 3966 case SPDK_FC_HW_PORT_RESET: 3967 event_fn = nvmf_fc_adm_evnt_hw_port_reset; 3968 break; 3969 3970 case SPDK_FC_UNRECOVERABLE_ERR: 3971 default: 3972 SPDK_ERRLOG("Invalid spdk_fc_event_t: %d\n", event_type); 3973 err = -EINVAL; 3974 break; 3975 } 3976 3977 done: 3978 3979 if (err == 0) { 3980 assert(event_fn != NULL); 3981 nvmf_fc_adm_run_on_main_thread(event_fn, (void *)api_data); 3982 SPDK_DEBUGLOG(nvmf_fc_adm_api, "Enqueue event %d done successfully\n", event_type); 3983 } else { 3984 SPDK_ERRLOG("Enqueue event %d failed, err = %d\n", event_type, err); 3985 if (api_data) { 3986 free(api_data); 3987 } 3988 } 3989 3990 return err; 3991 } 3992 3993 SPDK_NVMF_TRANSPORT_REGISTER(fc, &spdk_nvmf_transport_fc); 3994 SPDK_LOG_REGISTER_COMPONENT(nvmf_fc_adm_api) 3995 SPDK_LOG_REGISTER_COMPONENT(nvmf_fc) 3996