1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright (c) Intel Corporation. All rights reserved. 3 * Copyright (c) 2019, 2020 Mellanox Technologies LTD. All rights reserved. 4 * Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved. 5 */ 6 7 #include "spdk/stdinc.h" 8 9 #include "nvmf_internal.h" 10 #include "transport.h" 11 12 #include "spdk/bit_array.h" 13 #include "spdk/endian.h" 14 #include "spdk/thread.h" 15 #include "spdk/nvme_spec.h" 16 #include "spdk/nvmf_cmd.h" 17 #include "spdk/string.h" 18 #include "spdk/util.h" 19 #include "spdk/version.h" 20 #include "spdk/log.h" 21 #include "spdk_internal/usdt.h" 22 23 #define MIN_KEEP_ALIVE_TIMEOUT_IN_MS 10000 24 #define NVMF_DISC_KATO_IN_MS 120000 25 #define KAS_TIME_UNIT_IN_MS 100 26 #define KAS_DEFAULT_VALUE (MIN_KEEP_ALIVE_TIMEOUT_IN_MS / KAS_TIME_UNIT_IN_MS) 27 28 #define NVMF_CC_RESET_SHN_TIMEOUT_IN_MS 10000 29 30 #define NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS (NVMF_CC_RESET_SHN_TIMEOUT_IN_MS + 5000) 31 32 /* 33 * Report the SPDK version as the firmware revision. 34 * SPDK_VERSION_STRING won't fit into FR (only 8 bytes), so try to fit the most important parts. 35 */ 36 #define FW_VERSION SPDK_VERSION_MAJOR_STRING SPDK_VERSION_MINOR_STRING SPDK_VERSION_PATCH_STRING 37 38 #define ANA_TRANSITION_TIME_IN_SEC 10 39 40 #define NVMF_ABORT_COMMAND_LIMIT 3 41 42 /* 43 * Support for custom admin command handlers 44 */ 45 struct spdk_nvmf_custom_admin_cmd { 46 spdk_nvmf_custom_cmd_hdlr hdlr; 47 uint32_t nsid; /* nsid to forward */ 48 }; 49 50 static struct spdk_nvmf_custom_admin_cmd g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_MAX_OPC + 1]; 51 52 static void _nvmf_request_complete(void *ctx); 53 54 static inline void 55 nvmf_invalid_connect_response(struct spdk_nvmf_fabric_connect_rsp *rsp, 56 uint8_t iattr, uint16_t ipo) 57 { 58 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 59 rsp->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM; 60 rsp->status_code_specific.invalid.iattr = iattr; 61 rsp->status_code_specific.invalid.ipo = ipo; 62 } 63 64 #define SPDK_NVMF_INVALID_CONNECT_CMD(rsp, field) \ 65 nvmf_invalid_connect_response(rsp, 0, offsetof(struct spdk_nvmf_fabric_connect_cmd, field)) 66 #define SPDK_NVMF_INVALID_CONNECT_DATA(rsp, field) \ 67 nvmf_invalid_connect_response(rsp, 1, offsetof(struct spdk_nvmf_fabric_connect_data, field)) 68 69 70 static void 71 nvmf_ctrlr_stop_keep_alive_timer(struct spdk_nvmf_ctrlr *ctrlr) 72 { 73 if (!ctrlr) { 74 SPDK_ERRLOG("Controller is NULL\n"); 75 return; 76 } 77 78 if (ctrlr->keep_alive_poller == NULL) { 79 return; 80 } 81 82 SPDK_DEBUGLOG(nvmf, "Stop keep alive poller\n"); 83 spdk_poller_unregister(&ctrlr->keep_alive_poller); 84 } 85 86 static void 87 nvmf_ctrlr_stop_association_timer(struct spdk_nvmf_ctrlr *ctrlr) 88 { 89 if (!ctrlr) { 90 SPDK_ERRLOG("Controller is NULL\n"); 91 assert(false); 92 return; 93 } 94 95 if (ctrlr->association_timer == NULL) { 96 return; 97 } 98 99 SPDK_DEBUGLOG(nvmf, "Stop association timer\n"); 100 spdk_poller_unregister(&ctrlr->association_timer); 101 } 102 103 static void 104 nvmf_ctrlr_disconnect_qpairs_done(struct spdk_io_channel_iter *i, int status) 105 { 106 if (status == 0) { 107 SPDK_DEBUGLOG(nvmf, "ctrlr disconnect qpairs complete successfully\n"); 108 } else { 109 SPDK_ERRLOG("Fail to disconnect ctrlr qpairs\n"); 110 } 111 } 112 113 static int 114 _nvmf_ctrlr_disconnect_qpairs_on_pg(struct spdk_io_channel_iter *i, bool include_admin) 115 { 116 int rc = 0; 117 struct spdk_nvmf_ctrlr *ctrlr; 118 struct spdk_nvmf_qpair *qpair, *temp_qpair; 119 struct spdk_io_channel *ch; 120 struct spdk_nvmf_poll_group *group; 121 122 ctrlr = spdk_io_channel_iter_get_ctx(i); 123 ch = spdk_io_channel_iter_get_channel(i); 124 group = spdk_io_channel_get_ctx(ch); 125 126 TAILQ_FOREACH_SAFE(qpair, &group->qpairs, link, temp_qpair) { 127 if (qpair->ctrlr == ctrlr && (include_admin || !nvmf_qpair_is_admin_queue(qpair))) { 128 rc = spdk_nvmf_qpair_disconnect(qpair, NULL, NULL); 129 if (rc) { 130 SPDK_ERRLOG("Qpair disconnect failed\n"); 131 return rc; 132 } 133 } 134 } 135 136 return rc; 137 } 138 139 static void 140 nvmf_ctrlr_disconnect_qpairs_on_pg(struct spdk_io_channel_iter *i) 141 { 142 spdk_for_each_channel_continue(i, _nvmf_ctrlr_disconnect_qpairs_on_pg(i, true)); 143 } 144 145 static void 146 nvmf_ctrlr_disconnect_io_qpairs_on_pg(struct spdk_io_channel_iter *i) 147 { 148 spdk_for_each_channel_continue(i, _nvmf_ctrlr_disconnect_qpairs_on_pg(i, false)); 149 } 150 151 static int 152 nvmf_ctrlr_keep_alive_poll(void *ctx) 153 { 154 uint64_t keep_alive_timeout_tick; 155 uint64_t now = spdk_get_ticks(); 156 struct spdk_nvmf_ctrlr *ctrlr = ctx; 157 158 if (ctrlr->in_destruct) { 159 nvmf_ctrlr_stop_keep_alive_timer(ctrlr); 160 return SPDK_POLLER_IDLE; 161 } 162 163 SPDK_DEBUGLOG(nvmf, "Polling ctrlr keep alive timeout\n"); 164 165 /* If the Keep alive feature is in use and the timer expires */ 166 keep_alive_timeout_tick = ctrlr->last_keep_alive_tick + 167 ctrlr->feat.keep_alive_timer.bits.kato * spdk_get_ticks_hz() / UINT64_C(1000); 168 if (now > keep_alive_timeout_tick) { 169 SPDK_NOTICELOG("Disconnecting host %s from subsystem %s due to keep alive timeout.\n", 170 ctrlr->hostnqn, ctrlr->subsys->subnqn); 171 /* set the Controller Fatal Status bit to '1' */ 172 if (ctrlr->vcprop.csts.bits.cfs == 0) { 173 nvmf_ctrlr_set_fatal_status(ctrlr); 174 175 /* 176 * disconnect qpairs, terminate Transport connection 177 * destroy ctrlr, break the host to controller association 178 * disconnect qpairs with qpair->ctrlr == ctrlr 179 */ 180 spdk_for_each_channel(ctrlr->subsys->tgt, 181 nvmf_ctrlr_disconnect_qpairs_on_pg, 182 ctrlr, 183 nvmf_ctrlr_disconnect_qpairs_done); 184 return SPDK_POLLER_BUSY; 185 } 186 } 187 188 return SPDK_POLLER_IDLE; 189 } 190 191 static void 192 nvmf_ctrlr_start_keep_alive_timer(struct spdk_nvmf_ctrlr *ctrlr) 193 { 194 if (!ctrlr) { 195 SPDK_ERRLOG("Controller is NULL\n"); 196 return; 197 } 198 199 /* if cleared to 0 then the Keep Alive Timer is disabled */ 200 if (ctrlr->feat.keep_alive_timer.bits.kato != 0) { 201 202 ctrlr->last_keep_alive_tick = spdk_get_ticks(); 203 204 SPDK_DEBUGLOG(nvmf, "Ctrlr add keep alive poller\n"); 205 ctrlr->keep_alive_poller = SPDK_POLLER_REGISTER(nvmf_ctrlr_keep_alive_poll, ctrlr, 206 ctrlr->feat.keep_alive_timer.bits.kato * 1000); 207 } 208 } 209 210 static void 211 ctrlr_add_qpair_and_update_rsp(struct spdk_nvmf_qpair *qpair, 212 struct spdk_nvmf_ctrlr *ctrlr, 213 struct spdk_nvmf_fabric_connect_rsp *rsp) 214 { 215 assert(ctrlr->admin_qpair->group->thread == spdk_get_thread()); 216 217 /* check if we would exceed ctrlr connection limit */ 218 if (qpair->qid >= spdk_bit_array_capacity(ctrlr->qpair_mask)) { 219 SPDK_ERRLOG("Requested QID %u but Max QID is %u\n", 220 qpair->qid, spdk_bit_array_capacity(ctrlr->qpair_mask) - 1); 221 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 222 rsp->status.sc = SPDK_NVME_SC_INVALID_QUEUE_IDENTIFIER; 223 return; 224 } 225 226 if (spdk_bit_array_get(ctrlr->qpair_mask, qpair->qid)) { 227 SPDK_ERRLOG("Got I/O connect with duplicate QID %u\n", qpair->qid); 228 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 229 rsp->status.sc = SPDK_NVME_SC_INVALID_QUEUE_IDENTIFIER; 230 return; 231 } 232 233 qpair->ctrlr = ctrlr; 234 spdk_bit_array_set(ctrlr->qpair_mask, qpair->qid); 235 236 rsp->status.sc = SPDK_NVME_SC_SUCCESS; 237 rsp->status_code_specific.success.cntlid = ctrlr->cntlid; 238 SPDK_DEBUGLOG(nvmf, "connect capsule response: cntlid = 0x%04x\n", 239 rsp->status_code_specific.success.cntlid); 240 241 SPDK_DTRACE_PROBE4(nvmf_ctrlr_add_qpair, qpair, qpair->qid, ctrlr->subsys->subnqn, 242 ctrlr->hostnqn); 243 } 244 245 static void 246 _nvmf_ctrlr_add_admin_qpair(void *ctx) 247 { 248 struct spdk_nvmf_request *req = ctx; 249 struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp; 250 struct spdk_nvmf_qpair *qpair = req->qpair; 251 struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr; 252 253 ctrlr->admin_qpair = qpair; 254 ctrlr->association_timeout = qpair->transport->opts.association_timeout; 255 nvmf_ctrlr_start_keep_alive_timer(ctrlr); 256 ctrlr_add_qpair_and_update_rsp(qpair, ctrlr, rsp); 257 _nvmf_request_complete(req); 258 } 259 260 static void 261 _nvmf_subsystem_add_ctrlr(void *ctx) 262 { 263 struct spdk_nvmf_request *req = ctx; 264 struct spdk_nvmf_qpair *qpair = req->qpair; 265 struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp; 266 struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr; 267 268 if (nvmf_subsystem_add_ctrlr(ctrlr->subsys, ctrlr)) { 269 SPDK_ERRLOG("Unable to add controller to subsystem\n"); 270 spdk_bit_array_free(&ctrlr->qpair_mask); 271 free(ctrlr); 272 qpair->ctrlr = NULL; 273 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 274 spdk_nvmf_request_complete(req); 275 return; 276 } 277 278 spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_add_admin_qpair, req); 279 } 280 281 static void 282 nvmf_ctrlr_cdata_init(struct spdk_nvmf_transport *transport, struct spdk_nvmf_subsystem *subsystem, 283 struct spdk_nvmf_ctrlr_data *cdata) 284 { 285 cdata->aerl = NVMF_MAX_ASYNC_EVENTS - 1; 286 cdata->kas = KAS_DEFAULT_VALUE; 287 cdata->vid = SPDK_PCI_VID_INTEL; 288 cdata->ssvid = SPDK_PCI_VID_INTEL; 289 /* INTEL OUI */ 290 cdata->ieee[0] = 0xe4; 291 cdata->ieee[1] = 0xd2; 292 cdata->ieee[2] = 0x5c; 293 cdata->oncs.reservations = 1; 294 cdata->sgls.supported = 1; 295 cdata->sgls.keyed_sgl = 1; 296 cdata->sgls.sgl_offset = 1; 297 cdata->nvmf_specific.ioccsz = sizeof(struct spdk_nvme_cmd) / 16; 298 cdata->nvmf_specific.ioccsz += transport->opts.in_capsule_data_size / 16; 299 cdata->nvmf_specific.iorcsz = sizeof(struct spdk_nvme_cpl) / 16; 300 cdata->nvmf_specific.icdoff = 0; /* offset starts directly after SQE */ 301 cdata->nvmf_specific.ctrattr.ctrlr_model = SPDK_NVMF_CTRLR_MODEL_DYNAMIC; 302 cdata->nvmf_specific.msdbd = 1; 303 304 if (transport->ops->cdata_init) { 305 transport->ops->cdata_init(transport, subsystem, cdata); 306 } 307 } 308 309 static struct spdk_nvmf_ctrlr * 310 nvmf_ctrlr_create(struct spdk_nvmf_subsystem *subsystem, 311 struct spdk_nvmf_request *req, 312 struct spdk_nvmf_fabric_connect_cmd *connect_cmd, 313 struct spdk_nvmf_fabric_connect_data *connect_data) 314 { 315 struct spdk_nvmf_ctrlr *ctrlr; 316 struct spdk_nvmf_transport *transport = req->qpair->transport; 317 struct spdk_nvme_transport_id listen_trid = {}; 318 319 ctrlr = calloc(1, sizeof(*ctrlr)); 320 if (ctrlr == NULL) { 321 SPDK_ERRLOG("Memory allocation failed\n"); 322 return NULL; 323 } 324 325 if (spdk_nvme_trtype_is_fabrics(transport->ops->type)) { 326 ctrlr->dynamic_ctrlr = true; 327 } else { 328 ctrlr->cntlid = connect_data->cntlid; 329 } 330 331 SPDK_DTRACE_PROBE3(nvmf_ctrlr_create, ctrlr, subsystem->subnqn, 332 spdk_thread_get_id(req->qpair->group->thread)); 333 334 STAILQ_INIT(&ctrlr->async_events); 335 TAILQ_INIT(&ctrlr->log_head); 336 ctrlr->subsys = subsystem; 337 ctrlr->thread = req->qpair->group->thread; 338 ctrlr->disconnect_in_progress = false; 339 340 ctrlr->qpair_mask = spdk_bit_array_create(transport->opts.max_qpairs_per_ctrlr); 341 if (!ctrlr->qpair_mask) { 342 SPDK_ERRLOG("Failed to allocate controller qpair mask\n"); 343 goto err_qpair_mask; 344 } 345 346 nvmf_ctrlr_cdata_init(transport, subsystem, &ctrlr->cdata); 347 348 /* 349 * KAS: This field indicates the granularity of the Keep Alive Timer in 100ms units. 350 * If this field is cleared to 0h, then Keep Alive is not supported. 351 */ 352 if (ctrlr->cdata.kas) { 353 ctrlr->feat.keep_alive_timer.bits.kato = spdk_divide_round_up(connect_cmd->kato, 354 KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS) * 355 KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS; 356 } 357 358 ctrlr->feat.async_event_configuration.bits.ns_attr_notice = 1; 359 if (ctrlr->subsys->flags.ana_reporting) { 360 ctrlr->feat.async_event_configuration.bits.ana_change_notice = 1; 361 } 362 ctrlr->feat.volatile_write_cache.bits.wce = 1; 363 /* Coalescing Disable */ 364 ctrlr->feat.interrupt_vector_configuration.bits.cd = 1; 365 366 if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) { 367 /* 368 * If keep-alive timeout is not set, discovery controllers use some 369 * arbitrary high value in order to cleanup stale discovery sessions 370 * 371 * From the 1.0a nvme-of spec: 372 * "The Keep Alive command is reserved for 373 * Discovery controllers. A transport may specify a 374 * fixed Discovery controller activity timeout value 375 * (e.g., 2 minutes). If no commands are received 376 * by a Discovery controller within that time 377 * period, the controller may perform the 378 * actions for Keep Alive Timer expiration". 379 * 380 * From the 1.1 nvme-of spec: 381 * "A host requests an explicit persistent connection 382 * to a Discovery controller and Asynchronous Event Notifications from 383 * the Discovery controller on that persistent connection by specifying 384 * a non-zero Keep Alive Timer value in the Connect command." 385 * 386 * In case non-zero KATO is used, we enable discovery_log_change_notice 387 * otherwise we disable it and use default discovery controller KATO. 388 * KATO is in millisecond. 389 */ 390 if (ctrlr->feat.keep_alive_timer.bits.kato == 0) { 391 ctrlr->feat.keep_alive_timer.bits.kato = NVMF_DISC_KATO_IN_MS; 392 ctrlr->feat.async_event_configuration.bits.discovery_log_change_notice = 0; 393 } else { 394 ctrlr->feat.async_event_configuration.bits.discovery_log_change_notice = 1; 395 } 396 } 397 398 /* Subtract 1 for admin queue, 1 for 0's based */ 399 ctrlr->feat.number_of_queues.bits.ncqr = transport->opts.max_qpairs_per_ctrlr - 1 - 400 1; 401 ctrlr->feat.number_of_queues.bits.nsqr = transport->opts.max_qpairs_per_ctrlr - 1 - 402 1; 403 404 spdk_uuid_copy(&ctrlr->hostid, (struct spdk_uuid *)connect_data->hostid); 405 memcpy(ctrlr->hostnqn, connect_data->hostnqn, sizeof(ctrlr->hostnqn)); 406 407 ctrlr->vcprop.cap.raw = 0; 408 ctrlr->vcprop.cap.bits.cqr = 1; /* NVMe-oF specification required */ 409 ctrlr->vcprop.cap.bits.mqes = transport->opts.max_queue_depth - 410 1; /* max queue depth */ 411 ctrlr->vcprop.cap.bits.ams = 0; /* optional arb mechanisms */ 412 /* ready timeout - 500 msec units */ 413 ctrlr->vcprop.cap.bits.to = NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS / 500; 414 ctrlr->vcprop.cap.bits.dstrd = 0; /* fixed to 0 for NVMe-oF */ 415 ctrlr->vcprop.cap.bits.css = SPDK_NVME_CAP_CSS_NVM; /* NVM command set */ 416 ctrlr->vcprop.cap.bits.mpsmin = 0; /* 2 ^ (12 + mpsmin) == 4k */ 417 ctrlr->vcprop.cap.bits.mpsmax = 0; /* 2 ^ (12 + mpsmax) == 4k */ 418 419 /* Version Supported: 1.3 */ 420 ctrlr->vcprop.vs.bits.mjr = 1; 421 ctrlr->vcprop.vs.bits.mnr = 3; 422 ctrlr->vcprop.vs.bits.ter = 0; 423 424 ctrlr->vcprop.cc.raw = 0; 425 ctrlr->vcprop.cc.bits.en = 0; /* Init controller disabled */ 426 427 ctrlr->vcprop.csts.raw = 0; 428 ctrlr->vcprop.csts.bits.rdy = 0; /* Init controller as not ready */ 429 430 SPDK_DEBUGLOG(nvmf, "cap 0x%" PRIx64 "\n", ctrlr->vcprop.cap.raw); 431 SPDK_DEBUGLOG(nvmf, "vs 0x%x\n", ctrlr->vcprop.vs.raw); 432 SPDK_DEBUGLOG(nvmf, "cc 0x%x\n", ctrlr->vcprop.cc.raw); 433 SPDK_DEBUGLOG(nvmf, "csts 0x%x\n", ctrlr->vcprop.csts.raw); 434 435 ctrlr->dif_insert_or_strip = transport->opts.dif_insert_or_strip; 436 437 if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_NVME) { 438 if (spdk_nvmf_qpair_get_listen_trid(req->qpair, &listen_trid) != 0) { 439 SPDK_ERRLOG("Could not get listener transport ID\n"); 440 goto err_listener; 441 } 442 443 ctrlr->listener = nvmf_subsystem_find_listener(ctrlr->subsys, &listen_trid); 444 if (!ctrlr->listener) { 445 SPDK_ERRLOG("Listener was not found\n"); 446 goto err_listener; 447 } 448 } 449 450 req->qpair->ctrlr = ctrlr; 451 spdk_thread_send_msg(subsystem->thread, _nvmf_subsystem_add_ctrlr, req); 452 453 return ctrlr; 454 err_listener: 455 spdk_bit_array_free(&ctrlr->qpair_mask); 456 err_qpair_mask: 457 free(ctrlr); 458 return NULL; 459 } 460 461 static void 462 _nvmf_ctrlr_destruct(void *ctx) 463 { 464 struct spdk_nvmf_ctrlr *ctrlr = ctx; 465 struct spdk_nvmf_reservation_log *log, *log_tmp; 466 struct spdk_nvmf_async_event_completion *event, *event_tmp; 467 468 SPDK_DTRACE_PROBE3(nvmf_ctrlr_destruct, ctrlr, ctrlr->subsys->subnqn, 469 spdk_thread_get_id(ctrlr->thread)); 470 471 assert(spdk_get_thread() == ctrlr->thread); 472 assert(ctrlr->in_destruct); 473 474 SPDK_DEBUGLOG(nvmf, "Destroy ctrlr 0x%hx\n", ctrlr->cntlid); 475 if (ctrlr->disconnect_in_progress) { 476 SPDK_ERRLOG("freeing ctrlr with disconnect in progress\n"); 477 spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_destruct, ctrlr); 478 return; 479 } 480 481 nvmf_ctrlr_stop_keep_alive_timer(ctrlr); 482 nvmf_ctrlr_stop_association_timer(ctrlr); 483 spdk_bit_array_free(&ctrlr->qpair_mask); 484 485 TAILQ_FOREACH_SAFE(log, &ctrlr->log_head, link, log_tmp) { 486 TAILQ_REMOVE(&ctrlr->log_head, log, link); 487 free(log); 488 } 489 STAILQ_FOREACH_SAFE(event, &ctrlr->async_events, link, event_tmp) { 490 STAILQ_REMOVE(&ctrlr->async_events, event, spdk_nvmf_async_event_completion, link); 491 free(event); 492 } 493 free(ctrlr); 494 } 495 496 void 497 nvmf_ctrlr_destruct(struct spdk_nvmf_ctrlr *ctrlr) 498 { 499 nvmf_subsystem_remove_ctrlr(ctrlr->subsys, ctrlr); 500 501 spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_destruct, ctrlr); 502 } 503 504 static void 505 nvmf_ctrlr_add_io_qpair(void *ctx) 506 { 507 struct spdk_nvmf_request *req = ctx; 508 struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp; 509 struct spdk_nvmf_qpair *qpair = req->qpair; 510 struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr; 511 struct spdk_nvmf_qpair *admin_qpair = ctrlr->admin_qpair; 512 513 SPDK_DTRACE_PROBE4(nvmf_ctrlr_add_io_qpair, ctrlr, req->qpair, req->qpair->qid, 514 spdk_thread_get_id(ctrlr->thread)); 515 516 /* Unit test will check qpair->ctrlr after calling spdk_nvmf_ctrlr_connect. 517 * For error case, the value should be NULL. So set it to NULL at first. 518 */ 519 qpair->ctrlr = NULL; 520 521 /* Make sure the controller is not being destroyed. */ 522 if (ctrlr->in_destruct) { 523 SPDK_ERRLOG("Got I/O connect while ctrlr was being destroyed.\n"); 524 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid); 525 goto end; 526 } 527 528 if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) { 529 SPDK_ERRLOG("I/O connect not allowed on discovery controller\n"); 530 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid); 531 goto end; 532 } 533 534 if (!ctrlr->vcprop.cc.bits.en) { 535 SPDK_ERRLOG("Got I/O connect before ctrlr was enabled\n"); 536 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid); 537 goto end; 538 } 539 540 if (1u << ctrlr->vcprop.cc.bits.iosqes != sizeof(struct spdk_nvme_cmd)) { 541 SPDK_ERRLOG("Got I/O connect with invalid IOSQES %u\n", 542 ctrlr->vcprop.cc.bits.iosqes); 543 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid); 544 goto end; 545 } 546 547 if (1u << ctrlr->vcprop.cc.bits.iocqes != sizeof(struct spdk_nvme_cpl)) { 548 SPDK_ERRLOG("Got I/O connect with invalid IOCQES %u\n", 549 ctrlr->vcprop.cc.bits.iocqes); 550 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid); 551 goto end; 552 } 553 554 if (admin_qpair->state != SPDK_NVMF_QPAIR_ACTIVE || admin_qpair->group == NULL) { 555 /* There is a chance that admin qpair is being destroyed at this moment due to e.g. 556 * expired keep alive timer. Part of the qpair destruction process is change of qpair's 557 * state to DEACTIVATING and removing it from poll group */ 558 SPDK_ERRLOG("Inactive admin qpair (state %d, group %p)\n", admin_qpair->state, admin_qpair->group); 559 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid); 560 goto end; 561 } 562 563 ctrlr_add_qpair_and_update_rsp(qpair, ctrlr, rsp); 564 end: 565 spdk_nvmf_request_complete(req); 566 } 567 568 static void 569 _nvmf_ctrlr_add_io_qpair(void *ctx) 570 { 571 struct spdk_nvmf_request *req = ctx; 572 struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp; 573 struct spdk_nvmf_fabric_connect_data *data = req->data; 574 struct spdk_nvmf_ctrlr *ctrlr; 575 struct spdk_nvmf_qpair *qpair = req->qpair; 576 struct spdk_nvmf_qpair *admin_qpair; 577 struct spdk_nvmf_tgt *tgt = qpair->transport->tgt; 578 struct spdk_nvmf_subsystem *subsystem; 579 struct spdk_nvme_transport_id listen_trid = {}; 580 const struct spdk_nvmf_subsystem_listener *listener; 581 582 SPDK_DEBUGLOG(nvmf, "Connect I/O Queue for controller id 0x%x\n", data->cntlid); 583 584 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, data->subnqn); 585 /* We already checked this in spdk_nvmf_ctrlr_connect */ 586 assert(subsystem != NULL); 587 588 ctrlr = nvmf_subsystem_get_ctrlr(subsystem, data->cntlid); 589 if (ctrlr == NULL) { 590 SPDK_ERRLOG("Unknown controller ID 0x%x\n", data->cntlid); 591 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, cntlid); 592 spdk_nvmf_request_complete(req); 593 return; 594 } 595 596 /* fail before passing a message to the controller thread. */ 597 if (ctrlr->in_destruct) { 598 SPDK_ERRLOG("Got I/O connect while ctrlr was being destroyed.\n"); 599 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid); 600 spdk_nvmf_request_complete(req); 601 return; 602 } 603 604 /* If ANA reporting is enabled, check if I/O connect is on the same listener. */ 605 if (subsystem->flags.ana_reporting) { 606 if (spdk_nvmf_qpair_get_listen_trid(req->qpair, &listen_trid) != 0) { 607 SPDK_ERRLOG("Could not get listener transport ID\n"); 608 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid); 609 spdk_nvmf_request_complete(req); 610 return; 611 } 612 613 listener = nvmf_subsystem_find_listener(subsystem, &listen_trid); 614 if (listener != ctrlr->listener) { 615 SPDK_ERRLOG("I/O connect is on a listener different from admin connect\n"); 616 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid); 617 spdk_nvmf_request_complete(req); 618 return; 619 } 620 } 621 622 admin_qpair = ctrlr->admin_qpair; 623 if (admin_qpair->state != SPDK_NVMF_QPAIR_ACTIVE || admin_qpair->group == NULL) { 624 /* There is a chance that admin qpair is being destroyed at this moment due to e.g. 625 * expired keep alive timer. Part of the qpair destruction process is change of qpair's 626 * state to DEACTIVATING and removing it from poll group */ 627 SPDK_ERRLOG("Inactive admin qpair (state %d, group %p)\n", admin_qpair->state, admin_qpair->group); 628 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, qid); 629 spdk_nvmf_request_complete(req); 630 return; 631 } 632 qpair->ctrlr = ctrlr; 633 spdk_thread_send_msg(admin_qpair->group->thread, nvmf_ctrlr_add_io_qpair, req); 634 } 635 636 static bool 637 nvmf_qpair_access_allowed(struct spdk_nvmf_qpair *qpair, struct spdk_nvmf_subsystem *subsystem, 638 const char *hostnqn) 639 { 640 struct spdk_nvme_transport_id listen_trid = {}; 641 642 if (!spdk_nvmf_subsystem_host_allowed(subsystem, hostnqn)) { 643 SPDK_ERRLOG("Subsystem '%s' does not allow host '%s'\n", subsystem->subnqn, hostnqn); 644 return false; 645 } 646 647 if (spdk_nvmf_qpair_get_listen_trid(qpair, &listen_trid)) { 648 SPDK_ERRLOG("Subsystem '%s' is unable to enforce access control due to an internal error.\n", 649 subsystem->subnqn); 650 return false; 651 } 652 653 if (!spdk_nvmf_subsystem_listener_allowed(subsystem, &listen_trid)) { 654 SPDK_ERRLOG("Subsystem '%s' does not allow host '%s' to connect at this address.\n", 655 subsystem->subnqn, hostnqn); 656 return false; 657 } 658 659 return true; 660 } 661 662 static int 663 _nvmf_ctrlr_connect(struct spdk_nvmf_request *req) 664 { 665 struct spdk_nvmf_fabric_connect_data *data = req->data; 666 struct spdk_nvmf_fabric_connect_cmd *cmd = &req->cmd->connect_cmd; 667 struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp; 668 struct spdk_nvmf_qpair *qpair = req->qpair; 669 struct spdk_nvmf_transport *transport = qpair->transport; 670 struct spdk_nvmf_ctrlr *ctrlr; 671 struct spdk_nvmf_subsystem *subsystem; 672 673 SPDK_DEBUGLOG(nvmf, "recfmt 0x%x qid %u sqsize %u\n", 674 cmd->recfmt, cmd->qid, cmd->sqsize); 675 676 SPDK_DEBUGLOG(nvmf, "Connect data:\n"); 677 SPDK_DEBUGLOG(nvmf, " cntlid: 0x%04x\n", data->cntlid); 678 SPDK_DEBUGLOG(nvmf, " hostid: %08x-%04x-%04x-%02x%02x-%04x%08x ***\n", 679 ntohl(*(uint32_t *)&data->hostid[0]), 680 ntohs(*(uint16_t *)&data->hostid[4]), 681 ntohs(*(uint16_t *)&data->hostid[6]), 682 data->hostid[8], 683 data->hostid[9], 684 ntohs(*(uint16_t *)&data->hostid[10]), 685 ntohl(*(uint32_t *)&data->hostid[12])); 686 SPDK_DEBUGLOG(nvmf, " subnqn: \"%s\"\n", data->subnqn); 687 SPDK_DEBUGLOG(nvmf, " hostnqn: \"%s\"\n", data->hostnqn); 688 689 subsystem = spdk_nvmf_tgt_find_subsystem(transport->tgt, data->subnqn); 690 if (!subsystem) { 691 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn); 692 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 693 } 694 695 if (cmd->recfmt != 0) { 696 SPDK_ERRLOG("Connect command unsupported RECFMT %u\n", cmd->recfmt); 697 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 698 rsp->status.sc = SPDK_NVMF_FABRIC_SC_INCOMPATIBLE_FORMAT; 699 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 700 } 701 702 /* 703 * SQSIZE is a 0-based value, so it must be at least 1 (minimum queue depth is 2) and 704 * strictly less than max_aq_depth (admin queues) or max_queue_depth (io queues). 705 */ 706 if (cmd->sqsize == 0) { 707 SPDK_ERRLOG("Invalid SQSIZE = 0\n"); 708 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize); 709 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 710 } 711 712 if (cmd->qid == 0) { 713 if (cmd->sqsize >= transport->opts.max_aq_depth) { 714 SPDK_ERRLOG("Invalid SQSIZE for admin queue %u (min 1, max %u)\n", 715 cmd->sqsize, transport->opts.max_aq_depth - 1); 716 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize); 717 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 718 } 719 } else if (cmd->sqsize >= transport->opts.max_queue_depth) { 720 SPDK_ERRLOG("Invalid SQSIZE %u (min 1, max %u)\n", 721 cmd->sqsize, transport->opts.max_queue_depth - 1); 722 SPDK_NVMF_INVALID_CONNECT_CMD(rsp, sqsize); 723 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 724 } 725 726 qpair->sq_head_max = cmd->sqsize; 727 qpair->qid = cmd->qid; 728 729 if (0 == qpair->qid) { 730 qpair->group->stat.admin_qpairs++; 731 qpair->group->stat.current_admin_qpairs++; 732 } else { 733 qpair->group->stat.io_qpairs++; 734 qpair->group->stat.current_io_qpairs++; 735 } 736 737 if (cmd->qid == 0) { 738 SPDK_DEBUGLOG(nvmf, "Connect Admin Queue for controller ID 0x%x\n", data->cntlid); 739 740 if (spdk_nvme_trtype_is_fabrics(transport->ops->type) && data->cntlid != 0xFFFF) { 741 /* This NVMf target only supports dynamic mode. */ 742 SPDK_ERRLOG("The NVMf target only supports dynamic mode (CNTLID = 0x%x).\n", data->cntlid); 743 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, cntlid); 744 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 745 } 746 747 /* Establish a new ctrlr */ 748 ctrlr = nvmf_ctrlr_create(subsystem, req, cmd, data); 749 if (!ctrlr) { 750 SPDK_ERRLOG("nvmf_ctrlr_create() failed\n"); 751 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 752 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 753 } else { 754 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 755 } 756 } else { 757 spdk_thread_send_msg(subsystem->thread, _nvmf_ctrlr_add_io_qpair, req); 758 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 759 } 760 } 761 762 static inline bool 763 nvmf_request_is_fabric_connect(struct spdk_nvmf_request *req) 764 { 765 return req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC && 766 req->cmd->nvmf_cmd.fctype == SPDK_NVMF_FABRIC_COMMAND_CONNECT; 767 } 768 769 static struct spdk_nvmf_subsystem_poll_group * 770 nvmf_subsystem_pg_from_connect_cmd(struct spdk_nvmf_request *req) 771 { 772 struct spdk_nvmf_fabric_connect_data *data; 773 struct spdk_nvmf_subsystem *subsystem; 774 struct spdk_nvmf_tgt *tgt; 775 776 assert(nvmf_request_is_fabric_connect(req)); 777 assert(req->qpair->ctrlr == NULL); 778 779 data = req->data; 780 tgt = req->qpair->transport->tgt; 781 782 subsystem = spdk_nvmf_tgt_find_subsystem(tgt, data->subnqn); 783 if (subsystem == NULL) { 784 return NULL; 785 } 786 787 return &req->qpair->group->sgroups[subsystem->id]; 788 } 789 790 int 791 spdk_nvmf_ctrlr_connect(struct spdk_nvmf_request *req) 792 { 793 struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp; 794 struct spdk_nvmf_subsystem_poll_group *sgroup; 795 struct spdk_nvmf_qpair *qpair = req->qpair; 796 enum spdk_nvmf_request_exec_status status; 797 798 sgroup = nvmf_subsystem_pg_from_connect_cmd(req); 799 if (!sgroup) { 800 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn); 801 status = SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 802 goto out; 803 } 804 805 sgroup->mgmt_io_outstanding++; 806 TAILQ_INSERT_TAIL(&qpair->outstanding, req, link); 807 808 status = _nvmf_ctrlr_connect(req); 809 810 out: 811 if (status == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) { 812 _nvmf_request_complete(req); 813 } 814 815 return status; 816 } 817 818 static int nvmf_ctrlr_cmd_connect(struct spdk_nvmf_request *req); 819 820 static int 821 retry_connect(void *arg) 822 { 823 struct spdk_nvmf_request *req = arg; 824 struct spdk_nvmf_subsystem_poll_group *sgroup; 825 int rc; 826 827 sgroup = nvmf_subsystem_pg_from_connect_cmd(req); 828 assert(sgroup != NULL); 829 sgroup->mgmt_io_outstanding++; 830 spdk_poller_unregister(&req->poller); 831 rc = nvmf_ctrlr_cmd_connect(req); 832 if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) { 833 _nvmf_request_complete(req); 834 } 835 return SPDK_POLLER_BUSY; 836 } 837 838 static int 839 nvmf_ctrlr_cmd_connect(struct spdk_nvmf_request *req) 840 { 841 struct spdk_nvmf_fabric_connect_data *data = req->data; 842 struct spdk_nvmf_fabric_connect_rsp *rsp = &req->rsp->connect_rsp; 843 struct spdk_nvmf_transport *transport = req->qpair->transport; 844 struct spdk_nvmf_subsystem *subsystem; 845 846 if (req->length < sizeof(struct spdk_nvmf_fabric_connect_data)) { 847 SPDK_ERRLOG("Connect command data length 0x%x too small\n", req->length); 848 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 849 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 850 } 851 852 subsystem = spdk_nvmf_tgt_find_subsystem(transport->tgt, data->subnqn); 853 if (!subsystem) { 854 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, subnqn); 855 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 856 } 857 858 if ((subsystem->state == SPDK_NVMF_SUBSYSTEM_INACTIVE) || 859 (subsystem->state == SPDK_NVMF_SUBSYSTEM_PAUSING) || 860 (subsystem->state == SPDK_NVMF_SUBSYSTEM_PAUSED) || 861 (subsystem->state == SPDK_NVMF_SUBSYSTEM_DEACTIVATING)) { 862 struct spdk_nvmf_subsystem_poll_group *sgroup; 863 864 if (req->timeout_tsc == 0) { 865 /* We will only retry the request up to 1 second. */ 866 req->timeout_tsc = spdk_get_ticks() + spdk_get_ticks_hz(); 867 } else if (spdk_get_ticks() > req->timeout_tsc) { 868 SPDK_ERRLOG("Subsystem '%s' was not ready for 1 second\n", subsystem->subnqn); 869 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 870 rsp->status.sc = SPDK_NVMF_FABRIC_SC_CONTROLLER_BUSY; 871 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 872 } 873 874 /* Subsystem is not ready to handle a connect. Use a poller to retry it 875 * again later. Decrement the mgmt_io_outstanding to avoid the 876 * subsystem waiting for this command to complete before unpausing. 877 */ 878 sgroup = nvmf_subsystem_pg_from_connect_cmd(req); 879 assert(sgroup != NULL); 880 sgroup->mgmt_io_outstanding--; 881 SPDK_DEBUGLOG(nvmf, "Subsystem '%s' is not ready for connect, retrying...\n", subsystem->subnqn); 882 req->poller = SPDK_POLLER_REGISTER(retry_connect, req, 100); 883 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 884 } 885 886 /* Ensure that hostnqn is null terminated */ 887 if (!memchr(data->hostnqn, '\0', SPDK_NVMF_NQN_MAX_LEN + 1)) { 888 SPDK_ERRLOG("Connect HOSTNQN is not null terminated\n"); 889 SPDK_NVMF_INVALID_CONNECT_DATA(rsp, hostnqn); 890 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 891 } 892 893 if (!nvmf_qpair_access_allowed(req->qpair, subsystem, data->hostnqn)) { 894 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 895 rsp->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_HOST; 896 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 897 } 898 899 return _nvmf_ctrlr_connect(req); 900 } 901 902 static int 903 nvmf_ctrlr_association_remove(void *ctx) 904 { 905 struct spdk_nvmf_ctrlr *ctrlr = ctx; 906 int rc; 907 908 nvmf_ctrlr_stop_association_timer(ctrlr); 909 910 if (ctrlr->in_destruct) { 911 return SPDK_POLLER_IDLE; 912 } 913 SPDK_DEBUGLOG(nvmf, "Disconnecting host from subsystem %s due to association timeout.\n", 914 ctrlr->subsys->subnqn); 915 916 if (ctrlr->admin_qpair) { 917 rc = spdk_nvmf_qpair_disconnect(ctrlr->admin_qpair, NULL, NULL); 918 if (rc < 0) { 919 SPDK_ERRLOG("Fail to disconnect admin ctrlr qpair\n"); 920 assert(false); 921 } 922 } 923 924 return SPDK_POLLER_BUSY; 925 } 926 927 static int 928 _nvmf_ctrlr_cc_reset_shn_done(void *ctx) 929 { 930 struct spdk_nvmf_ctrlr *ctrlr = ctx; 931 uint64_t now = spdk_get_ticks(); 932 uint32_t count; 933 934 if (ctrlr->cc_timer) { 935 spdk_poller_unregister(&ctrlr->cc_timer); 936 } 937 938 count = spdk_bit_array_count_set(ctrlr->qpair_mask); 939 SPDK_DEBUGLOG(nvmf, "ctrlr %p active queue count %u\n", ctrlr, count); 940 941 if (count > 1) { 942 if (now < ctrlr->cc_timeout_tsc) { 943 /* restart cc timer */ 944 ctrlr->cc_timer = SPDK_POLLER_REGISTER(_nvmf_ctrlr_cc_reset_shn_done, ctrlr, 100 * 1000); 945 return SPDK_POLLER_IDLE; 946 } else { 947 /* controller fatal status */ 948 SPDK_WARNLOG("IO timeout, ctrlr %p is in fatal status\n", ctrlr); 949 nvmf_ctrlr_set_fatal_status(ctrlr); 950 } 951 } 952 953 spdk_poller_unregister(&ctrlr->cc_timeout_timer); 954 955 if (ctrlr->disconnect_is_shn) { 956 ctrlr->vcprop.csts.bits.shst = SPDK_NVME_SHST_COMPLETE; 957 ctrlr->disconnect_is_shn = false; 958 } else { 959 /* Only a subset of the registers are cleared out on a reset */ 960 ctrlr->vcprop.cc.raw = 0; 961 ctrlr->vcprop.csts.raw = 0; 962 } 963 964 /* After CC.EN transitions to 0 (due to shutdown or reset), the association 965 * between the host and controller shall be preserved for at least 2 minutes */ 966 if (ctrlr->association_timer) { 967 SPDK_DEBUGLOG(nvmf, "Association timer already set\n"); 968 nvmf_ctrlr_stop_association_timer(ctrlr); 969 } 970 if (ctrlr->association_timeout) { 971 ctrlr->association_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_association_remove, ctrlr, 972 ctrlr->association_timeout * 1000); 973 } 974 ctrlr->disconnect_in_progress = false; 975 return SPDK_POLLER_BUSY; 976 } 977 978 static void 979 nvmf_ctrlr_cc_reset_shn_done(struct spdk_io_channel_iter *i, int status) 980 { 981 struct spdk_nvmf_ctrlr *ctrlr = spdk_io_channel_iter_get_ctx(i); 982 983 if (status < 0) { 984 SPDK_ERRLOG("Fail to disconnect io ctrlr qpairs\n"); 985 assert(false); 986 } 987 988 _nvmf_ctrlr_cc_reset_shn_done((void *)ctrlr); 989 } 990 991 static void 992 nvmf_bdev_complete_reset(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg) 993 { 994 SPDK_NOTICELOG("Resetting bdev done with %s\n", success ? "success" : "failure"); 995 996 spdk_bdev_free_io(bdev_io); 997 } 998 999 1000 static int 1001 nvmf_ctrlr_cc_timeout(void *ctx) 1002 { 1003 struct spdk_nvmf_ctrlr *ctrlr = ctx; 1004 struct spdk_nvmf_poll_group *group = ctrlr->admin_qpair->group; 1005 struct spdk_nvmf_ns *ns; 1006 struct spdk_nvmf_subsystem_pg_ns_info *ns_info; 1007 1008 assert(group != NULL && group->sgroups != NULL); 1009 spdk_poller_unregister(&ctrlr->cc_timeout_timer); 1010 SPDK_DEBUGLOG(nvmf, "Ctrlr %p reset or shutdown timeout\n", ctrlr); 1011 1012 for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns != NULL; 1013 ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) { 1014 if (ns->bdev == NULL) { 1015 continue; 1016 } 1017 ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[ns->opts.nsid - 1]; 1018 SPDK_NOTICELOG("Ctrlr %p resetting NSID %u\n", ctrlr, ns->opts.nsid); 1019 spdk_bdev_reset(ns->desc, ns_info->channel, nvmf_bdev_complete_reset, NULL); 1020 } 1021 1022 return SPDK_POLLER_BUSY; 1023 } 1024 1025 const struct spdk_nvmf_registers * 1026 spdk_nvmf_ctrlr_get_regs(struct spdk_nvmf_ctrlr *ctrlr) 1027 { 1028 return &ctrlr->vcprop; 1029 } 1030 1031 void 1032 nvmf_ctrlr_set_fatal_status(struct spdk_nvmf_ctrlr *ctrlr) 1033 { 1034 ctrlr->vcprop.csts.bits.cfs = 1; 1035 } 1036 1037 static uint64_t 1038 nvmf_prop_get_cap(struct spdk_nvmf_ctrlr *ctrlr) 1039 { 1040 return ctrlr->vcprop.cap.raw; 1041 } 1042 1043 static uint64_t 1044 nvmf_prop_get_vs(struct spdk_nvmf_ctrlr *ctrlr) 1045 { 1046 return ctrlr->vcprop.vs.raw; 1047 } 1048 1049 static uint64_t 1050 nvmf_prop_get_cc(struct spdk_nvmf_ctrlr *ctrlr) 1051 { 1052 return ctrlr->vcprop.cc.raw; 1053 } 1054 1055 static bool 1056 nvmf_prop_set_cc(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value) 1057 { 1058 union spdk_nvme_cc_register cc, diff; 1059 uint32_t cc_timeout_ms; 1060 1061 cc.raw = value; 1062 1063 SPDK_DEBUGLOG(nvmf, "cur CC: 0x%08x\n", ctrlr->vcprop.cc.raw); 1064 SPDK_DEBUGLOG(nvmf, "new CC: 0x%08x\n", cc.raw); 1065 1066 /* 1067 * Calculate which bits changed between the current and new CC. 1068 * Mark each bit as 0 once it is handled to determine if any unhandled bits were changed. 1069 */ 1070 diff.raw = cc.raw ^ ctrlr->vcprop.cc.raw; 1071 1072 if (diff.bits.en) { 1073 if (cc.bits.en) { 1074 SPDK_DEBUGLOG(nvmf, "Property Set CC Enable!\n"); 1075 nvmf_ctrlr_stop_association_timer(ctrlr); 1076 1077 ctrlr->vcprop.cc.bits.en = 1; 1078 ctrlr->vcprop.csts.bits.rdy = 1; 1079 } else { 1080 SPDK_DEBUGLOG(nvmf, "Property Set CC Disable!\n"); 1081 if (ctrlr->disconnect_in_progress) { 1082 SPDK_DEBUGLOG(nvmf, "Disconnect in progress\n"); 1083 return true; 1084 } 1085 1086 ctrlr->cc_timeout_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_cc_timeout, ctrlr, 1087 NVMF_CC_RESET_SHN_TIMEOUT_IN_MS * 1000); 1088 /* Make sure cc_timeout_ms is between cc_timeout_timer and Host reset/shutdown timeout */ 1089 cc_timeout_ms = (NVMF_CC_RESET_SHN_TIMEOUT_IN_MS + NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS) / 2; 1090 ctrlr->cc_timeout_tsc = spdk_get_ticks() + cc_timeout_ms * spdk_get_ticks_hz() / (uint64_t)1000; 1091 1092 ctrlr->vcprop.cc.bits.en = 0; 1093 ctrlr->disconnect_in_progress = true; 1094 ctrlr->disconnect_is_shn = false; 1095 spdk_for_each_channel(ctrlr->subsys->tgt, 1096 nvmf_ctrlr_disconnect_io_qpairs_on_pg, 1097 ctrlr, 1098 nvmf_ctrlr_cc_reset_shn_done); 1099 } 1100 diff.bits.en = 0; 1101 } 1102 1103 if (diff.bits.shn) { 1104 if (cc.bits.shn == SPDK_NVME_SHN_NORMAL || 1105 cc.bits.shn == SPDK_NVME_SHN_ABRUPT) { 1106 SPDK_DEBUGLOG(nvmf, "Property Set CC Shutdown %u%ub!\n", 1107 cc.bits.shn >> 1, cc.bits.shn & 1); 1108 if (ctrlr->disconnect_in_progress) { 1109 SPDK_DEBUGLOG(nvmf, "Disconnect in progress\n"); 1110 return true; 1111 } 1112 1113 ctrlr->cc_timeout_timer = SPDK_POLLER_REGISTER(nvmf_ctrlr_cc_timeout, ctrlr, 1114 NVMF_CC_RESET_SHN_TIMEOUT_IN_MS * 1000); 1115 /* Make sure cc_timeout_ms is between cc_timeout_timer and Host reset/shutdown timeout */ 1116 cc_timeout_ms = (NVMF_CC_RESET_SHN_TIMEOUT_IN_MS + NVMF_CTRLR_RESET_SHN_TIMEOUT_IN_MS) / 2; 1117 ctrlr->cc_timeout_tsc = spdk_get_ticks() + cc_timeout_ms * spdk_get_ticks_hz() / (uint64_t)1000; 1118 1119 ctrlr->vcprop.cc.bits.shn = cc.bits.shn; 1120 ctrlr->disconnect_in_progress = true; 1121 ctrlr->disconnect_is_shn = true; 1122 spdk_for_each_channel(ctrlr->subsys->tgt, 1123 nvmf_ctrlr_disconnect_io_qpairs_on_pg, 1124 ctrlr, 1125 nvmf_ctrlr_cc_reset_shn_done); 1126 1127 /* From the time a shutdown is initiated the controller shall disable 1128 * Keep Alive timer */ 1129 nvmf_ctrlr_stop_keep_alive_timer(ctrlr); 1130 } else if (cc.bits.shn == 0) { 1131 ctrlr->vcprop.cc.bits.shn = 0; 1132 } else { 1133 SPDK_ERRLOG("Prop Set CC: Invalid SHN value %u%ub\n", 1134 cc.bits.shn >> 1, cc.bits.shn & 1); 1135 return false; 1136 } 1137 diff.bits.shn = 0; 1138 } 1139 1140 if (diff.bits.iosqes) { 1141 SPDK_DEBUGLOG(nvmf, "Prop Set IOSQES = %u (%u bytes)\n", 1142 cc.bits.iosqes, 1u << cc.bits.iosqes); 1143 ctrlr->vcprop.cc.bits.iosqes = cc.bits.iosqes; 1144 diff.bits.iosqes = 0; 1145 } 1146 1147 if (diff.bits.iocqes) { 1148 SPDK_DEBUGLOG(nvmf, "Prop Set IOCQES = %u (%u bytes)\n", 1149 cc.bits.iocqes, 1u << cc.bits.iocqes); 1150 ctrlr->vcprop.cc.bits.iocqes = cc.bits.iocqes; 1151 diff.bits.iocqes = 0; 1152 } 1153 1154 if (diff.bits.ams) { 1155 SPDK_ERRLOG("Arbitration Mechanism Selected (AMS) 0x%x not supported!\n", cc.bits.ams); 1156 return false; 1157 } 1158 1159 if (diff.bits.mps) { 1160 SPDK_ERRLOG("Memory Page Size (MPS) %u KiB not supported!\n", (1 << (2 + cc.bits.mps))); 1161 return false; 1162 } 1163 1164 if (diff.bits.css) { 1165 SPDK_ERRLOG("I/O Command Set Selected (CSS) 0x%x not supported!\n", cc.bits.css); 1166 return false; 1167 } 1168 1169 if (diff.raw != 0) { 1170 /* Print an error message, but don't fail the command in this case. 1171 * If we did want to fail in this case, we'd need to ensure we acted 1172 * on no other bits or the initiator gets confused. */ 1173 SPDK_ERRLOG("Prop Set CC toggled reserved bits 0x%x!\n", diff.raw); 1174 } 1175 1176 return true; 1177 } 1178 1179 static uint64_t 1180 nvmf_prop_get_csts(struct spdk_nvmf_ctrlr *ctrlr) 1181 { 1182 return ctrlr->vcprop.csts.raw; 1183 } 1184 1185 static uint64_t 1186 nvmf_prop_get_aqa(struct spdk_nvmf_ctrlr *ctrlr) 1187 { 1188 return ctrlr->vcprop.aqa.raw; 1189 } 1190 1191 static bool 1192 nvmf_prop_set_aqa(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value) 1193 { 1194 union spdk_nvme_aqa_register aqa; 1195 1196 aqa.raw = value; 1197 1198 /* 1199 * We don't need to explicitly check for maximum size, as the fields are 1200 * limited to 12 bits (4096). 1201 */ 1202 if (aqa.bits.asqs < SPDK_NVME_ADMIN_QUEUE_MIN_ENTRIES - 1 || 1203 aqa.bits.acqs < SPDK_NVME_ADMIN_QUEUE_MIN_ENTRIES - 1 || 1204 aqa.bits.reserved1 != 0 || aqa.bits.reserved2 != 0) { 1205 return false; 1206 } 1207 1208 ctrlr->vcprop.aqa.raw = value; 1209 1210 return true; 1211 } 1212 1213 static uint64_t 1214 nvmf_prop_get_asq(struct spdk_nvmf_ctrlr *ctrlr) 1215 { 1216 return ctrlr->vcprop.asq; 1217 } 1218 1219 static bool 1220 nvmf_prop_set_asq_lower(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value) 1221 { 1222 ctrlr->vcprop.asq = (ctrlr->vcprop.asq & (0xFFFFFFFFULL << 32ULL)) | value; 1223 1224 return true; 1225 } 1226 1227 static bool 1228 nvmf_prop_set_asq_upper(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value) 1229 { 1230 ctrlr->vcprop.asq = (ctrlr->vcprop.asq & 0xFFFFFFFFULL) | ((uint64_t)value << 32ULL); 1231 1232 return true; 1233 } 1234 1235 static uint64_t 1236 nvmf_prop_get_acq(struct spdk_nvmf_ctrlr *ctrlr) 1237 { 1238 return ctrlr->vcprop.acq; 1239 } 1240 1241 static bool 1242 nvmf_prop_set_acq_lower(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value) 1243 { 1244 ctrlr->vcprop.acq = (ctrlr->vcprop.acq & (0xFFFFFFFFULL << 32ULL)) | value; 1245 1246 return true; 1247 } 1248 1249 static bool 1250 nvmf_prop_set_acq_upper(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value) 1251 { 1252 ctrlr->vcprop.acq = (ctrlr->vcprop.acq & 0xFFFFFFFFULL) | ((uint64_t)value << 32ULL); 1253 1254 return true; 1255 } 1256 1257 struct nvmf_prop { 1258 uint32_t ofst; 1259 uint8_t size; 1260 char name[11]; 1261 uint64_t (*get_cb)(struct spdk_nvmf_ctrlr *ctrlr); 1262 bool (*set_cb)(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value); 1263 bool (*set_upper_cb)(struct spdk_nvmf_ctrlr *ctrlr, uint32_t value); 1264 }; 1265 1266 #define PROP(field, size, get_cb, set_cb, set_upper_cb) \ 1267 { \ 1268 offsetof(struct spdk_nvme_registers, field), \ 1269 size, \ 1270 #field, \ 1271 get_cb, set_cb, set_upper_cb \ 1272 } 1273 1274 static const struct nvmf_prop nvmf_props[] = { 1275 PROP(cap, 8, nvmf_prop_get_cap, NULL, NULL), 1276 PROP(vs, 4, nvmf_prop_get_vs, NULL, NULL), 1277 PROP(cc, 4, nvmf_prop_get_cc, nvmf_prop_set_cc, NULL), 1278 PROP(csts, 4, nvmf_prop_get_csts, NULL, NULL), 1279 PROP(aqa, 4, nvmf_prop_get_aqa, nvmf_prop_set_aqa, NULL), 1280 PROP(asq, 8, nvmf_prop_get_asq, nvmf_prop_set_asq_lower, nvmf_prop_set_asq_upper), 1281 PROP(acq, 8, nvmf_prop_get_acq, nvmf_prop_set_acq_lower, nvmf_prop_set_acq_upper), 1282 }; 1283 1284 static const struct nvmf_prop * 1285 find_prop(uint32_t ofst, uint8_t size) 1286 { 1287 size_t i; 1288 1289 for (i = 0; i < SPDK_COUNTOF(nvmf_props); i++) { 1290 const struct nvmf_prop *prop = &nvmf_props[i]; 1291 1292 if ((ofst >= prop->ofst) && (ofst + size <= prop->ofst + prop->size)) { 1293 return prop; 1294 } 1295 } 1296 1297 return NULL; 1298 } 1299 1300 static int 1301 nvmf_property_get(struct spdk_nvmf_request *req) 1302 { 1303 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1304 struct spdk_nvmf_fabric_prop_get_cmd *cmd = &req->cmd->prop_get_cmd; 1305 struct spdk_nvmf_fabric_prop_get_rsp *response = &req->rsp->prop_get_rsp; 1306 const struct nvmf_prop *prop; 1307 uint8_t size; 1308 1309 response->status.sc = 0; 1310 response->value.u64 = 0; 1311 1312 SPDK_DEBUGLOG(nvmf, "size %d, offset 0x%x\n", 1313 cmd->attrib.size, cmd->ofst); 1314 1315 switch (cmd->attrib.size) { 1316 case SPDK_NVMF_PROP_SIZE_4: 1317 size = 4; 1318 break; 1319 case SPDK_NVMF_PROP_SIZE_8: 1320 size = 8; 1321 break; 1322 default: 1323 SPDK_DEBUGLOG(nvmf, "Invalid size value %d\n", cmd->attrib.size); 1324 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 1325 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM; 1326 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1327 } 1328 1329 prop = find_prop(cmd->ofst, size); 1330 if (prop == NULL || prop->get_cb == NULL) { 1331 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 1332 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM; 1333 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1334 } 1335 1336 SPDK_DEBUGLOG(nvmf, "name: %s\n", prop->name); 1337 1338 response->value.u64 = prop->get_cb(ctrlr); 1339 1340 if (size != prop->size) { 1341 /* The size must be 4 and the prop->size is 8. Figure out which part of the property to read. */ 1342 assert(size == 4); 1343 assert(prop->size == 8); 1344 1345 if (cmd->ofst == prop->ofst) { 1346 /* Keep bottom 4 bytes only */ 1347 response->value.u64 &= 0xFFFFFFFF; 1348 } else { 1349 /* Keep top 4 bytes only */ 1350 response->value.u64 >>= 32; 1351 } 1352 } 1353 1354 SPDK_DEBUGLOG(nvmf, "response value: 0x%" PRIx64 "\n", response->value.u64); 1355 1356 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1357 } 1358 1359 static int 1360 nvmf_property_set(struct spdk_nvmf_request *req) 1361 { 1362 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1363 struct spdk_nvmf_fabric_prop_set_cmd *cmd = &req->cmd->prop_set_cmd; 1364 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 1365 const struct nvmf_prop *prop; 1366 uint64_t value; 1367 uint8_t size; 1368 bool ret; 1369 1370 SPDK_DEBUGLOG(nvmf, "size %d, offset 0x%x, value 0x%" PRIx64 "\n", 1371 cmd->attrib.size, cmd->ofst, cmd->value.u64); 1372 1373 switch (cmd->attrib.size) { 1374 case SPDK_NVMF_PROP_SIZE_4: 1375 size = 4; 1376 break; 1377 case SPDK_NVMF_PROP_SIZE_8: 1378 size = 8; 1379 break; 1380 default: 1381 SPDK_DEBUGLOG(nvmf, "Invalid size value %d\n", cmd->attrib.size); 1382 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 1383 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM; 1384 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1385 } 1386 1387 prop = find_prop(cmd->ofst, size); 1388 if (prop == NULL || prop->set_cb == NULL) { 1389 SPDK_INFOLOG(nvmf, "Invalid offset 0x%x\n", cmd->ofst); 1390 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 1391 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM; 1392 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1393 } 1394 1395 SPDK_DEBUGLOG(nvmf, "name: %s\n", prop->name); 1396 1397 value = cmd->value.u64; 1398 1399 if (prop->size == 4) { 1400 ret = prop->set_cb(ctrlr, (uint32_t)value); 1401 } else if (size != prop->size) { 1402 /* The size must be 4 and the prop->size is 8. Figure out which part of the property to write. */ 1403 assert(size == 4); 1404 assert(prop->size == 8); 1405 1406 if (cmd->ofst == prop->ofst) { 1407 ret = prop->set_cb(ctrlr, (uint32_t)value); 1408 } else { 1409 ret = prop->set_upper_cb(ctrlr, (uint32_t)value); 1410 } 1411 } else { 1412 ret = prop->set_cb(ctrlr, (uint32_t)value); 1413 if (ret) { 1414 ret = prop->set_upper_cb(ctrlr, (uint32_t)(value >> 32)); 1415 } 1416 } 1417 1418 if (!ret) { 1419 SPDK_ERRLOG("prop set_cb failed\n"); 1420 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 1421 response->status.sc = SPDK_NVMF_FABRIC_SC_INVALID_PARAM; 1422 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1423 } 1424 1425 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1426 } 1427 1428 static int 1429 nvmf_ctrlr_set_features_arbitration(struct spdk_nvmf_request *req) 1430 { 1431 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1432 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1433 1434 SPDK_DEBUGLOG(nvmf, "Set Features - Arbitration (cdw11 = 0x%0x)\n", cmd->cdw11); 1435 1436 ctrlr->feat.arbitration.raw = cmd->cdw11; 1437 ctrlr->feat.arbitration.bits.reserved = 0; 1438 1439 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1440 } 1441 1442 static int 1443 nvmf_ctrlr_set_features_power_management(struct spdk_nvmf_request *req) 1444 { 1445 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1446 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1447 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1448 1449 SPDK_DEBUGLOG(nvmf, "Set Features - Power Management (cdw11 = 0x%0x)\n", cmd->cdw11); 1450 1451 /* Only PS = 0 is allowed, since we report NPSS = 0 */ 1452 if (cmd->cdw11_bits.feat_power_management.bits.ps != 0) { 1453 SPDK_ERRLOG("Invalid power state %u\n", cmd->cdw11_bits.feat_power_management.bits.ps); 1454 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 1455 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1456 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1457 } 1458 1459 ctrlr->feat.power_management.raw = cmd->cdw11; 1460 ctrlr->feat.power_management.bits.reserved = 0; 1461 1462 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1463 } 1464 1465 static bool 1466 temp_threshold_opts_valid(const union spdk_nvme_feat_temperature_threshold *opts) 1467 { 1468 /* 1469 * Valid TMPSEL values: 1470 * 0000b - 1000b: temperature sensors 1471 * 1111b: set all implemented temperature sensors 1472 */ 1473 if (opts->bits.tmpsel >= 9 && opts->bits.tmpsel != 15) { 1474 /* 1001b - 1110b: reserved */ 1475 SPDK_ERRLOG("Invalid TMPSEL %u\n", opts->bits.tmpsel); 1476 return false; 1477 } 1478 1479 /* 1480 * Valid THSEL values: 1481 * 00b: over temperature threshold 1482 * 01b: under temperature threshold 1483 */ 1484 if (opts->bits.thsel > 1) { 1485 /* 10b - 11b: reserved */ 1486 SPDK_ERRLOG("Invalid THSEL %u\n", opts->bits.thsel); 1487 return false; 1488 } 1489 1490 return true; 1491 } 1492 1493 static int 1494 nvmf_ctrlr_set_features_temperature_threshold(struct spdk_nvmf_request *req) 1495 { 1496 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1497 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1498 1499 SPDK_DEBUGLOG(nvmf, "Set Features - Temperature Threshold (cdw11 = 0x%0x)\n", cmd->cdw11); 1500 1501 if (!temp_threshold_opts_valid(&cmd->cdw11_bits.feat_temp_threshold)) { 1502 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 1503 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1504 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1505 } 1506 1507 /* TODO: no sensors implemented - ignore new values */ 1508 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1509 } 1510 1511 static int 1512 nvmf_ctrlr_get_features_temperature_threshold(struct spdk_nvmf_request *req) 1513 { 1514 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1515 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1516 1517 SPDK_DEBUGLOG(nvmf, "Get Features - Temperature Threshold (cdw11 = 0x%0x)\n", cmd->cdw11); 1518 1519 if (!temp_threshold_opts_valid(&cmd->cdw11_bits.feat_temp_threshold)) { 1520 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 1521 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1522 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1523 } 1524 1525 /* TODO: no sensors implemented - return 0 for all thresholds */ 1526 rsp->cdw0 = 0; 1527 1528 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1529 } 1530 1531 static int 1532 nvmf_ctrlr_get_features_interrupt_vector_configuration(struct spdk_nvmf_request *req) 1533 { 1534 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1535 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1536 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1537 union spdk_nvme_feat_interrupt_vector_configuration iv_conf = {}; 1538 1539 SPDK_DEBUGLOG(nvmf, "Get Features - Interrupt Vector Configuration (cdw11 = 0x%0x)\n", cmd->cdw11); 1540 1541 iv_conf.bits.iv = cmd->cdw11_bits.feat_interrupt_vector_configuration.bits.iv; 1542 iv_conf.bits.cd = ctrlr->feat.interrupt_vector_configuration.bits.cd; 1543 rsp->cdw0 = iv_conf.raw; 1544 1545 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1546 } 1547 1548 static int 1549 nvmf_ctrlr_set_features_error_recovery(struct spdk_nvmf_request *req) 1550 { 1551 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1552 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1553 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1554 1555 SPDK_DEBUGLOG(nvmf, "Set Features - Error Recovery (cdw11 = 0x%0x)\n", cmd->cdw11); 1556 1557 if (cmd->cdw11_bits.feat_error_recovery.bits.dulbe) { 1558 /* 1559 * Host is not allowed to set this bit, since we don't advertise it in 1560 * Identify Namespace. 1561 */ 1562 SPDK_ERRLOG("Host set unsupported DULBE bit\n"); 1563 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 1564 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1565 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1566 } 1567 1568 ctrlr->feat.error_recovery.raw = cmd->cdw11; 1569 ctrlr->feat.error_recovery.bits.reserved = 0; 1570 1571 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1572 } 1573 1574 static int 1575 nvmf_ctrlr_set_features_volatile_write_cache(struct spdk_nvmf_request *req) 1576 { 1577 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1578 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1579 1580 SPDK_DEBUGLOG(nvmf, "Set Features - Volatile Write Cache (cdw11 = 0x%0x)\n", cmd->cdw11); 1581 1582 ctrlr->feat.volatile_write_cache.raw = cmd->cdw11; 1583 ctrlr->feat.volatile_write_cache.bits.reserved = 0; 1584 1585 SPDK_DEBUGLOG(nvmf, "Set Features - Volatile Write Cache %s\n", 1586 ctrlr->feat.volatile_write_cache.bits.wce ? "Enabled" : "Disabled"); 1587 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1588 } 1589 1590 static int 1591 nvmf_ctrlr_set_features_write_atomicity(struct spdk_nvmf_request *req) 1592 { 1593 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1594 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1595 1596 SPDK_DEBUGLOG(nvmf, "Set Features - Write Atomicity (cdw11 = 0x%0x)\n", cmd->cdw11); 1597 1598 ctrlr->feat.write_atomicity.raw = cmd->cdw11; 1599 ctrlr->feat.write_atomicity.bits.reserved = 0; 1600 1601 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1602 } 1603 1604 static int 1605 nvmf_ctrlr_set_features_host_identifier(struct spdk_nvmf_request *req) 1606 { 1607 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 1608 1609 SPDK_ERRLOG("Set Features - Host Identifier not allowed\n"); 1610 response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR; 1611 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1612 } 1613 1614 static int 1615 nvmf_ctrlr_get_features_host_identifier(struct spdk_nvmf_request *req) 1616 { 1617 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1618 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1619 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 1620 1621 SPDK_DEBUGLOG(nvmf, "Get Features - Host Identifier\n"); 1622 1623 if (!cmd->cdw11_bits.feat_host_identifier.bits.exhid) { 1624 /* NVMe over Fabrics requires EXHID=1 (128-bit/16-byte host ID) */ 1625 SPDK_ERRLOG("Get Features - Host Identifier with EXHID=0 not allowed\n"); 1626 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1627 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1628 } 1629 1630 if (req->data == NULL || req->length < sizeof(ctrlr->hostid)) { 1631 SPDK_ERRLOG("Invalid data buffer for Get Features - Host Identifier\n"); 1632 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1633 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1634 } 1635 1636 spdk_uuid_copy((struct spdk_uuid *)req->data, &ctrlr->hostid); 1637 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1638 } 1639 1640 static int 1641 nvmf_ctrlr_get_features_reservation_notification_mask(struct spdk_nvmf_request *req) 1642 { 1643 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1644 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1645 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1646 struct spdk_nvmf_ns *ns; 1647 1648 SPDK_DEBUGLOG(nvmf, "get Features - Reservation Notification Mask\n"); 1649 1650 if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) { 1651 SPDK_ERRLOG("get Features - Invalid Namespace ID\n"); 1652 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1653 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1654 } 1655 1656 ns = _nvmf_subsystem_get_ns(ctrlr->subsys, cmd->nsid); 1657 if (ns == NULL) { 1658 SPDK_ERRLOG("Set Features - Invalid Namespace ID\n"); 1659 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1660 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1661 } 1662 rsp->cdw0 = ns->mask; 1663 1664 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1665 } 1666 1667 static int 1668 nvmf_ctrlr_set_features_reservation_notification_mask(struct spdk_nvmf_request *req) 1669 { 1670 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1671 struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys; 1672 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1673 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1674 struct spdk_nvmf_ns *ns; 1675 1676 SPDK_DEBUGLOG(nvmf, "Set Features - Reservation Notification Mask\n"); 1677 1678 if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) { 1679 for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL; 1680 ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) { 1681 ns->mask = cmd->cdw11; 1682 } 1683 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1684 } 1685 1686 ns = _nvmf_subsystem_get_ns(ctrlr->subsys, cmd->nsid); 1687 if (ns == NULL) { 1688 SPDK_ERRLOG("Set Features - Invalid Namespace ID\n"); 1689 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1690 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1691 } 1692 ns->mask = cmd->cdw11; 1693 1694 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1695 } 1696 1697 static int 1698 nvmf_ctrlr_get_features_reservation_persistence(struct spdk_nvmf_request *req) 1699 { 1700 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1701 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1702 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 1703 struct spdk_nvmf_ns *ns; 1704 1705 SPDK_DEBUGLOG(nvmf, "Get Features - Reservation Persistence\n"); 1706 1707 ns = _nvmf_subsystem_get_ns(ctrlr->subsys, cmd->nsid); 1708 /* NSID with SPDK_NVME_GLOBAL_NS_TAG (=0xffffffff) also included */ 1709 if (ns == NULL) { 1710 SPDK_ERRLOG("Get Features - Invalid Namespace ID\n"); 1711 response->status.sct = SPDK_NVME_SCT_GENERIC; 1712 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1713 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1714 } 1715 1716 response->cdw0 = ns->ptpl_activated; 1717 1718 response->status.sct = SPDK_NVME_SCT_GENERIC; 1719 response->status.sc = SPDK_NVME_SC_SUCCESS; 1720 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1721 } 1722 1723 static int 1724 nvmf_ctrlr_set_features_reservation_persistence(struct spdk_nvmf_request *req) 1725 { 1726 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1727 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1728 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 1729 struct spdk_nvmf_ns *ns; 1730 bool ptpl; 1731 1732 SPDK_DEBUGLOG(nvmf, "Set Features - Reservation Persistence\n"); 1733 1734 ns = _nvmf_subsystem_get_ns(ctrlr->subsys, cmd->nsid); 1735 ptpl = cmd->cdw11_bits.feat_rsv_persistence.bits.ptpl; 1736 1737 if (cmd->nsid != SPDK_NVME_GLOBAL_NS_TAG && ns && ns->ptpl_file) { 1738 ns->ptpl_activated = ptpl; 1739 } else if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) { 1740 for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns && ns->ptpl_file; 1741 ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) { 1742 ns->ptpl_activated = ptpl; 1743 } 1744 } else { 1745 SPDK_ERRLOG("Set Features - Invalid Namespace ID or Reservation Configuration\n"); 1746 response->status.sct = SPDK_NVME_SCT_GENERIC; 1747 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1748 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1749 } 1750 1751 /* TODO: Feature not changeable for now */ 1752 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 1753 response->status.sc = SPDK_NVME_SC_FEATURE_ID_NOT_SAVEABLE; 1754 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1755 } 1756 1757 static int 1758 nvmf_ctrlr_get_features_host_behavior_support(struct spdk_nvmf_request *req) 1759 { 1760 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1761 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 1762 struct spdk_nvme_host_behavior host_behavior = {}; 1763 1764 SPDK_DEBUGLOG(nvmf, "Get Features - Host Behavior Support\n"); 1765 1766 if (req->data == NULL || req->length < sizeof(struct spdk_nvme_host_behavior)) { 1767 SPDK_ERRLOG("invalid data buffer for Host Behavior Support\n"); 1768 response->status.sct = SPDK_NVME_SCT_GENERIC; 1769 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1770 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1771 } 1772 1773 host_behavior.acre = ctrlr->acre_enabled; 1774 memcpy(req->data, &host_behavior, sizeof(host_behavior)); 1775 1776 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1777 } 1778 1779 static int 1780 nvmf_ctrlr_set_features_host_behavior_support(struct spdk_nvmf_request *req) 1781 { 1782 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1783 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 1784 struct spdk_nvme_host_behavior *host_behavior; 1785 1786 SPDK_DEBUGLOG(nvmf, "Set Features - Host Behavior Support\n"); 1787 if (req->iovcnt != 1) { 1788 SPDK_ERRLOG("Host Behavior Support invalid iovcnt: %d\n", req->iovcnt); 1789 response->status.sct = SPDK_NVME_SCT_GENERIC; 1790 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1791 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1792 } 1793 if (req->iov[0].iov_len != sizeof(struct spdk_nvme_host_behavior)) { 1794 SPDK_ERRLOG("Host Behavior Support invalid iov_len: %zd\n", req->iov[0].iov_len); 1795 response->status.sct = SPDK_NVME_SCT_GENERIC; 1796 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1797 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1798 } 1799 1800 host_behavior = (struct spdk_nvme_host_behavior *)req->iov[0].iov_base; 1801 if (host_behavior->acre == 0) { 1802 ctrlr->acre_enabled = false; 1803 } else if (host_behavior->acre == 1) { 1804 ctrlr->acre_enabled = true; 1805 } else { 1806 SPDK_ERRLOG("Host Behavior Support invalid acre: 0x%02x\n", host_behavior->acre); 1807 response->status.sct = SPDK_NVME_SCT_GENERIC; 1808 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1809 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1810 } 1811 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1812 } 1813 1814 static int 1815 nvmf_ctrlr_set_features_keep_alive_timer(struct spdk_nvmf_request *req) 1816 { 1817 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1818 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1819 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1820 1821 SPDK_DEBUGLOG(nvmf, "Set Features - Keep Alive Timer (%u ms)\n", cmd->cdw11); 1822 1823 /* 1824 * if attempts to disable keep alive by setting kato to 0h 1825 * a status value of keep alive invalid shall be returned 1826 */ 1827 if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato == 0) { 1828 rsp->status.sc = SPDK_NVME_SC_KEEP_ALIVE_INVALID; 1829 } else if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato < MIN_KEEP_ALIVE_TIMEOUT_IN_MS) { 1830 ctrlr->feat.keep_alive_timer.bits.kato = MIN_KEEP_ALIVE_TIMEOUT_IN_MS; 1831 } else { 1832 /* round up to milliseconds */ 1833 ctrlr->feat.keep_alive_timer.bits.kato = spdk_divide_round_up( 1834 cmd->cdw11_bits.feat_keep_alive_timer.bits.kato, 1835 KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS) * 1836 KAS_DEFAULT_VALUE * KAS_TIME_UNIT_IN_MS; 1837 } 1838 1839 /* 1840 * if change the keep alive timeout value successfully 1841 * update the keep alive poller. 1842 */ 1843 if (cmd->cdw11_bits.feat_keep_alive_timer.bits.kato != 0) { 1844 if (ctrlr->keep_alive_poller != NULL) { 1845 spdk_poller_unregister(&ctrlr->keep_alive_poller); 1846 } 1847 ctrlr->keep_alive_poller = SPDK_POLLER_REGISTER(nvmf_ctrlr_keep_alive_poll, ctrlr, 1848 ctrlr->feat.keep_alive_timer.bits.kato * 1000); 1849 } 1850 1851 SPDK_DEBUGLOG(nvmf, "Set Features - Keep Alive Timer set to %u ms\n", 1852 ctrlr->feat.keep_alive_timer.bits.kato); 1853 1854 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1855 } 1856 1857 static int 1858 nvmf_ctrlr_set_features_number_of_queues(struct spdk_nvmf_request *req) 1859 { 1860 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1861 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1862 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1863 uint32_t count; 1864 1865 SPDK_DEBUGLOG(nvmf, "Set Features - Number of Queues, cdw11 0x%x\n", 1866 req->cmd->nvme_cmd.cdw11); 1867 1868 if (cmd->cdw11_bits.feat_num_of_queues.bits.ncqr == UINT16_MAX || 1869 cmd->cdw11_bits.feat_num_of_queues.bits.nsqr == UINT16_MAX) { 1870 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 1871 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1872 } 1873 1874 count = spdk_bit_array_count_set(ctrlr->qpair_mask); 1875 /* verify that the controller is ready to process commands */ 1876 if (count > 1) { 1877 SPDK_DEBUGLOG(nvmf, "Queue pairs already active!\n"); 1878 rsp->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR; 1879 } else { 1880 /* 1881 * Ignore the value requested by the host - 1882 * always return the pre-configured value based on max_qpairs_allowed. 1883 */ 1884 rsp->cdw0 = ctrlr->feat.number_of_queues.raw; 1885 } 1886 1887 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1888 } 1889 1890 int 1891 nvmf_ctrlr_save_aers(struct spdk_nvmf_ctrlr *ctrlr, uint16_t *aer_cids, 1892 uint16_t max_aers) 1893 { 1894 struct spdk_nvmf_request *req; 1895 uint16_t i; 1896 1897 if (!aer_cids || max_aers < ctrlr->nr_aer_reqs) { 1898 return -EINVAL; 1899 } 1900 1901 for (i = 0; i < ctrlr->nr_aer_reqs; i++) { 1902 req = ctrlr->aer_req[i]; 1903 aer_cids[i] = req->cmd->nvme_cmd.cid; 1904 } 1905 1906 return ctrlr->nr_aer_reqs; 1907 } 1908 1909 int 1910 nvmf_ctrlr_save_migr_data(struct spdk_nvmf_ctrlr *ctrlr, struct nvmf_ctrlr_migr_data *data) 1911 { 1912 uint32_t num_async_events = 0; 1913 struct spdk_nvmf_async_event_completion *event, *event_tmp; 1914 1915 memcpy(&data->feat, &ctrlr->feat, sizeof(struct spdk_nvmf_ctrlr_feat)); 1916 data->cntlid = ctrlr->cntlid; 1917 data->acre_enabled = ctrlr->acre_enabled; 1918 data->notice_aen_mask = ctrlr->notice_aen_mask; 1919 1920 STAILQ_FOREACH_SAFE(event, &ctrlr->async_events, link, event_tmp) { 1921 data->async_events[num_async_events++].raw = event->event.raw; 1922 if (num_async_events == NVMF_MIGR_MAX_PENDING_AERS) { 1923 SPDK_ERRLOG("%p has too many pending AERs\n", ctrlr); 1924 break; 1925 } 1926 } 1927 data->num_async_events = num_async_events; 1928 1929 return 0; 1930 } 1931 1932 int 1933 nvmf_ctrlr_restore_migr_data(struct spdk_nvmf_ctrlr *ctrlr, struct nvmf_ctrlr_migr_data *data) 1934 { 1935 struct spdk_nvmf_async_event_completion *event; 1936 uint32_t i; 1937 1938 memcpy(&ctrlr->feat, &data->feat, sizeof(struct spdk_nvmf_ctrlr_feat)); 1939 ctrlr->acre_enabled = data->acre_enabled; 1940 ctrlr->notice_aen_mask = data->notice_aen_mask; 1941 1942 for (i = 0; i < data->num_async_events; i++) { 1943 event = calloc(1, sizeof(struct spdk_nvmf_async_event_completion)); 1944 if (!event) { 1945 return -ENOMEM; 1946 } 1947 event->event.raw = data->async_events[i].raw; 1948 STAILQ_INSERT_TAIL(&ctrlr->async_events, event, link); 1949 } 1950 1951 return 0; 1952 } 1953 1954 static int 1955 nvmf_ctrlr_set_features_async_event_configuration(struct spdk_nvmf_request *req) 1956 { 1957 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1958 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 1959 1960 SPDK_DEBUGLOG(nvmf, "Set Features - Async Event Configuration, cdw11 0x%08x\n", 1961 cmd->cdw11); 1962 ctrlr->feat.async_event_configuration.raw = cmd->cdw11; 1963 ctrlr->feat.async_event_configuration.bits.reserved1 = 0; 1964 ctrlr->feat.async_event_configuration.bits.reserved2 = 0; 1965 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1966 } 1967 1968 static int 1969 nvmf_ctrlr_async_event_request(struct spdk_nvmf_request *req) 1970 { 1971 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 1972 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 1973 struct spdk_nvmf_subsystem_poll_group *sgroup; 1974 struct spdk_nvmf_async_event_completion *pending_event; 1975 1976 SPDK_DEBUGLOG(nvmf, "Async Event Request\n"); 1977 1978 /* AER cmd is an exception */ 1979 sgroup = &req->qpair->group->sgroups[ctrlr->subsys->id]; 1980 assert(sgroup != NULL); 1981 sgroup->mgmt_io_outstanding--; 1982 1983 /* Four asynchronous events are supported for now */ 1984 if (ctrlr->nr_aer_reqs >= NVMF_MAX_ASYNC_EVENTS) { 1985 SPDK_DEBUGLOG(nvmf, "AERL exceeded\n"); 1986 rsp->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 1987 rsp->status.sc = SPDK_NVME_SC_ASYNC_EVENT_REQUEST_LIMIT_EXCEEDED; 1988 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1989 } 1990 1991 if (!STAILQ_EMPTY(&ctrlr->async_events)) { 1992 pending_event = STAILQ_FIRST(&ctrlr->async_events); 1993 rsp->cdw0 = pending_event->event.raw; 1994 STAILQ_REMOVE(&ctrlr->async_events, pending_event, spdk_nvmf_async_event_completion, link); 1995 free(pending_event); 1996 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 1997 } 1998 1999 ctrlr->aer_req[ctrlr->nr_aer_reqs++] = req; 2000 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 2001 } 2002 2003 struct copy_iovs_ctx { 2004 struct iovec *iovs; 2005 int iovcnt; 2006 int cur_iov_idx; 2007 size_t cur_iov_offset; 2008 }; 2009 2010 static void 2011 _clear_iovs(struct iovec *iovs, int iovcnt) 2012 { 2013 int iov_idx = 0; 2014 struct iovec *iov; 2015 2016 while (iov_idx < iovcnt) { 2017 iov = &iovs[iov_idx]; 2018 memset(iov->iov_base, 0, iov->iov_len); 2019 iov_idx++; 2020 } 2021 } 2022 2023 static void 2024 _init_copy_iovs_ctx(struct copy_iovs_ctx *copy_ctx, struct iovec *iovs, int iovcnt) 2025 { 2026 copy_ctx->iovs = iovs; 2027 copy_ctx->iovcnt = iovcnt; 2028 copy_ctx->cur_iov_idx = 0; 2029 copy_ctx->cur_iov_offset = 0; 2030 } 2031 2032 static size_t 2033 _copy_buf_to_iovs(struct copy_iovs_ctx *copy_ctx, const void *buf, size_t buf_len) 2034 { 2035 size_t len, iov_remain_len, copied_len = 0; 2036 struct iovec *iov; 2037 2038 if (buf_len == 0) { 2039 return 0; 2040 } 2041 2042 while (copy_ctx->cur_iov_idx < copy_ctx->iovcnt) { 2043 iov = ©_ctx->iovs[copy_ctx->cur_iov_idx]; 2044 iov_remain_len = iov->iov_len - copy_ctx->cur_iov_offset; 2045 if (iov_remain_len == 0) { 2046 copy_ctx->cur_iov_idx++; 2047 copy_ctx->cur_iov_offset = 0; 2048 continue; 2049 } 2050 2051 len = spdk_min(iov_remain_len, buf_len - copied_len); 2052 memcpy((char *)iov->iov_base + copy_ctx->cur_iov_offset, 2053 (const char *)buf + copied_len, 2054 len); 2055 copied_len += len; 2056 copy_ctx->cur_iov_offset += len; 2057 2058 if (buf_len == copied_len) { 2059 return copied_len; 2060 } 2061 } 2062 2063 return copied_len; 2064 } 2065 2066 static void 2067 nvmf_get_firmware_slot_log_page(struct iovec *iovs, int iovcnt, uint64_t offset, uint32_t length) 2068 { 2069 struct spdk_nvme_firmware_page fw_page; 2070 size_t copy_len; 2071 struct copy_iovs_ctx copy_ctx; 2072 2073 _init_copy_iovs_ctx(©_ctx, iovs, iovcnt); 2074 2075 memset(&fw_page, 0, sizeof(fw_page)); 2076 fw_page.afi.active_slot = 1; 2077 fw_page.afi.next_reset_slot = 0; 2078 spdk_strcpy_pad(fw_page.revision[0], FW_VERSION, sizeof(fw_page.revision[0]), ' '); 2079 2080 if (offset < sizeof(fw_page)) { 2081 copy_len = spdk_min(sizeof(fw_page) - offset, length); 2082 if (copy_len > 0) { 2083 _copy_buf_to_iovs(©_ctx, (const char *)&fw_page + offset, copy_len); 2084 } 2085 } 2086 } 2087 2088 /* 2089 * Asynchronous Event Mask Bit 2090 */ 2091 enum spdk_nvme_async_event_mask_bit { 2092 /* Mask Namespace Change Notification */ 2093 SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGE_MASK_BIT = 0, 2094 /* Mask Asymmetric Namespace Access Change Notification */ 2095 SPDK_NVME_ASYNC_EVENT_ANA_CHANGE_MASK_BIT = 1, 2096 /* Mask Discovery Log Change Notification */ 2097 SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE_MASK_BIT = 2, 2098 /* Mask Reservation Log Page Available Notification */ 2099 SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL_MASK_BIT = 3, 2100 /* Mask Error Event */ 2101 SPDK_NVME_ASYNC_EVENT_ERROR_MASK_BIT = 4, 2102 /* 4 - 63 Reserved */ 2103 }; 2104 2105 static inline void 2106 nvmf_ctrlr_unmask_aen(struct spdk_nvmf_ctrlr *ctrlr, 2107 enum spdk_nvme_async_event_mask_bit mask) 2108 { 2109 ctrlr->notice_aen_mask &= ~(1 << mask); 2110 } 2111 2112 static inline bool 2113 nvmf_ctrlr_mask_aen(struct spdk_nvmf_ctrlr *ctrlr, 2114 enum spdk_nvme_async_event_mask_bit mask) 2115 { 2116 if (ctrlr->notice_aen_mask & (1 << mask)) { 2117 return false; 2118 } else { 2119 ctrlr->notice_aen_mask |= (1 << mask); 2120 return true; 2121 } 2122 } 2123 2124 /* we have to use the typedef in the function declaration to appease astyle. */ 2125 typedef enum spdk_nvme_ana_state spdk_nvme_ana_state_t; 2126 2127 static inline spdk_nvme_ana_state_t 2128 nvmf_ctrlr_get_ana_state(struct spdk_nvmf_ctrlr *ctrlr, uint32_t anagrpid) 2129 { 2130 if (!ctrlr->subsys->flags.ana_reporting) { 2131 return SPDK_NVME_ANA_OPTIMIZED_STATE; 2132 } 2133 2134 if (spdk_unlikely(ctrlr->listener == NULL)) { 2135 return SPDK_NVME_ANA_INACCESSIBLE_STATE; 2136 } 2137 2138 assert(anagrpid - 1 < ctrlr->subsys->max_nsid); 2139 return ctrlr->listener->ana_state[anagrpid - 1]; 2140 } 2141 2142 static spdk_nvme_ana_state_t 2143 nvmf_ctrlr_get_ana_state_from_nsid(struct spdk_nvmf_ctrlr *ctrlr, uint32_t nsid) 2144 { 2145 struct spdk_nvmf_ns *ns; 2146 2147 /* We do not have NVM subsystem specific ANA state. Hence if NSID is either 2148 * SPDK_NVMF_GLOBAL_NS_TAG, invalid, or for inactive namespace, return 2149 * the optimized state. 2150 */ 2151 ns = _nvmf_subsystem_get_ns(ctrlr->subsys, nsid); 2152 if (ns == NULL) { 2153 return SPDK_NVME_ANA_OPTIMIZED_STATE; 2154 } 2155 2156 return nvmf_ctrlr_get_ana_state(ctrlr, ns->anagrpid); 2157 } 2158 2159 static void 2160 nvmf_get_error_log_page(struct spdk_nvmf_ctrlr *ctrlr, struct iovec *iovs, int iovcnt, 2161 uint64_t offset, uint32_t length, uint32_t rae) 2162 { 2163 if (!rae) { 2164 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ERROR_MASK_BIT); 2165 } 2166 2167 /* TODO: actually fill out log page data */ 2168 } 2169 2170 static void 2171 nvmf_get_ana_log_page(struct spdk_nvmf_ctrlr *ctrlr, struct iovec *iovs, int iovcnt, 2172 uint64_t offset, uint32_t length, uint32_t rae) 2173 { 2174 struct spdk_nvme_ana_page ana_hdr; 2175 struct spdk_nvme_ana_group_descriptor ana_desc; 2176 size_t copy_len, copied_len; 2177 uint32_t num_anagrp = 0, anagrpid; 2178 struct spdk_nvmf_ns *ns; 2179 struct copy_iovs_ctx copy_ctx; 2180 2181 _init_copy_iovs_ctx(©_ctx, iovs, iovcnt); 2182 2183 if (length == 0) { 2184 goto done; 2185 } 2186 2187 if (offset >= sizeof(ana_hdr)) { 2188 offset -= sizeof(ana_hdr); 2189 } else { 2190 for (anagrpid = 1; anagrpid <= ctrlr->subsys->max_nsid; anagrpid++) { 2191 if (ctrlr->subsys->ana_group[anagrpid - 1] > 0) { 2192 num_anagrp++; 2193 } 2194 } 2195 2196 memset(&ana_hdr, 0, sizeof(ana_hdr)); 2197 2198 ana_hdr.num_ana_group_desc = num_anagrp; 2199 /* TODO: Support Change Count. */ 2200 ana_hdr.change_count = 0; 2201 2202 copy_len = spdk_min(sizeof(ana_hdr) - offset, length); 2203 copied_len = _copy_buf_to_iovs(©_ctx, (const char *)&ana_hdr + offset, copy_len); 2204 assert(copied_len == copy_len); 2205 length -= copied_len; 2206 offset = 0; 2207 } 2208 2209 if (length == 0) { 2210 goto done; 2211 } 2212 2213 for (anagrpid = 1; anagrpid <= ctrlr->subsys->max_nsid; anagrpid++) { 2214 if (ctrlr->subsys->ana_group[anagrpid - 1] == 0) { 2215 continue; 2216 } 2217 2218 if (offset >= sizeof(ana_desc)) { 2219 offset -= sizeof(ana_desc); 2220 } else { 2221 memset(&ana_desc, 0, sizeof(ana_desc)); 2222 2223 ana_desc.ana_group_id = anagrpid; 2224 ana_desc.num_of_nsid = ctrlr->subsys->ana_group[anagrpid - 1]; 2225 ana_desc.ana_state = nvmf_ctrlr_get_ana_state(ctrlr, anagrpid); 2226 2227 copy_len = spdk_min(sizeof(ana_desc) - offset, length); 2228 copied_len = _copy_buf_to_iovs(©_ctx, (const char *)&ana_desc + offset, 2229 copy_len); 2230 assert(copied_len == copy_len); 2231 length -= copied_len; 2232 offset = 0; 2233 2234 if (length == 0) { 2235 goto done; 2236 } 2237 } 2238 2239 /* TODO: Revisit here about O(n^2) cost if we have subsystem with 2240 * many namespaces in the future. 2241 */ 2242 for (ns = spdk_nvmf_subsystem_get_first_ns(ctrlr->subsys); ns != NULL; 2243 ns = spdk_nvmf_subsystem_get_next_ns(ctrlr->subsys, ns)) { 2244 if (ns->anagrpid != anagrpid) { 2245 continue; 2246 } 2247 2248 if (offset >= sizeof(uint32_t)) { 2249 offset -= sizeof(uint32_t); 2250 continue; 2251 } 2252 2253 copy_len = spdk_min(sizeof(uint32_t) - offset, length); 2254 copied_len = _copy_buf_to_iovs(©_ctx, (const char *)&ns->nsid + offset, 2255 copy_len); 2256 assert(copied_len == copy_len); 2257 length -= copied_len; 2258 offset = 0; 2259 2260 if (length == 0) { 2261 goto done; 2262 } 2263 } 2264 } 2265 2266 done: 2267 if (!rae) { 2268 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ANA_CHANGE_MASK_BIT); 2269 } 2270 } 2271 2272 void 2273 nvmf_ctrlr_ns_changed(struct spdk_nvmf_ctrlr *ctrlr, uint32_t nsid) 2274 { 2275 uint16_t max_changes = SPDK_COUNTOF(ctrlr->changed_ns_list.ns_list); 2276 uint16_t i; 2277 bool found = false; 2278 2279 for (i = 0; i < ctrlr->changed_ns_list_count; i++) { 2280 if (ctrlr->changed_ns_list.ns_list[i] == nsid) { 2281 /* nsid is already in the list */ 2282 found = true; 2283 break; 2284 } 2285 } 2286 2287 if (!found) { 2288 if (ctrlr->changed_ns_list_count == max_changes) { 2289 /* Out of space - set first entry to FFFFFFFFh and zero-fill the rest. */ 2290 ctrlr->changed_ns_list.ns_list[0] = 0xFFFFFFFFu; 2291 for (i = 1; i < max_changes; i++) { 2292 ctrlr->changed_ns_list.ns_list[i] = 0; 2293 } 2294 } else { 2295 ctrlr->changed_ns_list.ns_list[ctrlr->changed_ns_list_count++] = nsid; 2296 } 2297 } 2298 } 2299 2300 static void 2301 nvmf_get_changed_ns_list_log_page(struct spdk_nvmf_ctrlr *ctrlr, 2302 struct iovec *iovs, int iovcnt, uint64_t offset, uint32_t length, uint32_t rae) 2303 { 2304 size_t copy_length; 2305 struct copy_iovs_ctx copy_ctx; 2306 2307 _init_copy_iovs_ctx(©_ctx, iovs, iovcnt); 2308 2309 if (offset < sizeof(ctrlr->changed_ns_list)) { 2310 copy_length = spdk_min(length, sizeof(ctrlr->changed_ns_list) - offset); 2311 if (copy_length) { 2312 _copy_buf_to_iovs(©_ctx, (char *)&ctrlr->changed_ns_list + offset, copy_length); 2313 } 2314 } 2315 2316 /* Clear log page each time it is read */ 2317 ctrlr->changed_ns_list_count = 0; 2318 memset(&ctrlr->changed_ns_list, 0, sizeof(ctrlr->changed_ns_list)); 2319 2320 if (!rae) { 2321 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGE_MASK_BIT); 2322 } 2323 } 2324 2325 /* The structure can be modified if we provide support for other commands in future */ 2326 static const struct spdk_nvme_cmds_and_effect_log_page g_cmds_and_effect_log_page = { 2327 .admin_cmds_supported = { 2328 /* CSUPP, LBCC, NCC, NIC, CCC, CSE */ 2329 /* Get Log Page */ 2330 [SPDK_NVME_OPC_GET_LOG_PAGE] = {1, 0, 0, 0, 0, 0, 0, 0}, 2331 /* Identify */ 2332 [SPDK_NVME_OPC_IDENTIFY] = {1, 0, 0, 0, 0, 0, 0, 0}, 2333 /* Abort */ 2334 [SPDK_NVME_OPC_ABORT] = {1, 0, 0, 0, 0, 0, 0, 0}, 2335 /* Set Features */ 2336 [SPDK_NVME_OPC_SET_FEATURES] = {1, 0, 0, 0, 0, 0, 0, 0}, 2337 /* Get Features */ 2338 [SPDK_NVME_OPC_GET_FEATURES] = {1, 0, 0, 0, 0, 0, 0, 0}, 2339 /* Async Event Request */ 2340 [SPDK_NVME_OPC_ASYNC_EVENT_REQUEST] = {1, 0, 0, 0, 0, 0, 0, 0}, 2341 /* Keep Alive */ 2342 [SPDK_NVME_OPC_KEEP_ALIVE] = {1, 0, 0, 0, 0, 0, 0, 0}, 2343 }, 2344 .io_cmds_supported = { 2345 /* FLUSH */ 2346 [SPDK_NVME_OPC_FLUSH] = {1, 1, 0, 0, 0, 0, 0, 0}, 2347 /* WRITE */ 2348 [SPDK_NVME_OPC_WRITE] = {1, 1, 0, 0, 0, 0, 0, 0}, 2349 /* READ */ 2350 [SPDK_NVME_OPC_READ] = {1, 0, 0, 0, 0, 0, 0, 0}, 2351 /* WRITE ZEROES */ 2352 [SPDK_NVME_OPC_WRITE_ZEROES] = {1, 1, 0, 0, 0, 0, 0, 0}, 2353 /* DATASET MANAGEMENT */ 2354 [SPDK_NVME_OPC_DATASET_MANAGEMENT] = {1, 1, 0, 0, 0, 0, 0, 0}, 2355 /* COMPARE */ 2356 [SPDK_NVME_OPC_COMPARE] = {1, 0, 0, 0, 0, 0, 0, 0}, 2357 }, 2358 }; 2359 2360 static void 2361 nvmf_get_cmds_and_effects_log_page(struct iovec *iovs, int iovcnt, 2362 uint64_t offset, uint32_t length) 2363 { 2364 uint32_t page_size = sizeof(struct spdk_nvme_cmds_and_effect_log_page); 2365 size_t copy_len = 0; 2366 struct copy_iovs_ctx copy_ctx; 2367 2368 _init_copy_iovs_ctx(©_ctx, iovs, iovcnt); 2369 2370 if (offset < page_size) { 2371 copy_len = spdk_min(page_size - offset, length); 2372 _copy_buf_to_iovs(©_ctx, (char *)(&g_cmds_and_effect_log_page) + offset, copy_len); 2373 } 2374 } 2375 2376 static void 2377 nvmf_get_reservation_notification_log_page(struct spdk_nvmf_ctrlr *ctrlr, 2378 struct iovec *iovs, int iovcnt, uint64_t offset, uint32_t length, uint32_t rae) 2379 { 2380 uint32_t unit_log_len, avail_log_len, next_pos, copy_len; 2381 struct spdk_nvmf_reservation_log *log, *log_tmp; 2382 struct copy_iovs_ctx copy_ctx; 2383 2384 _init_copy_iovs_ctx(©_ctx, iovs, iovcnt); 2385 2386 unit_log_len = sizeof(struct spdk_nvme_reservation_notification_log); 2387 /* No available log, return zeroed log pages */ 2388 if (!ctrlr->num_avail_log_pages) { 2389 return; 2390 } 2391 2392 avail_log_len = ctrlr->num_avail_log_pages * unit_log_len; 2393 if (offset >= avail_log_len) { 2394 return; 2395 } 2396 2397 next_pos = 0; 2398 TAILQ_FOREACH_SAFE(log, &ctrlr->log_head, link, log_tmp) { 2399 TAILQ_REMOVE(&ctrlr->log_head, log, link); 2400 ctrlr->num_avail_log_pages--; 2401 2402 next_pos += unit_log_len; 2403 if (next_pos > offset) { 2404 copy_len = spdk_min(next_pos - offset, length); 2405 _copy_buf_to_iovs(©_ctx, &log->log, copy_len); 2406 length -= copy_len; 2407 offset += copy_len; 2408 } 2409 free(log); 2410 2411 if (length == 0) { 2412 break; 2413 } 2414 } 2415 2416 if (!rae) { 2417 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL_MASK_BIT); 2418 } 2419 return; 2420 } 2421 2422 static int 2423 nvmf_ctrlr_get_log_page(struct spdk_nvmf_request *req) 2424 { 2425 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 2426 struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys; 2427 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 2428 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 2429 struct spdk_nvme_transport_id cmd_source_trid; 2430 uint64_t offset, len; 2431 uint32_t rae, numdl, numdu; 2432 uint8_t lid; 2433 2434 if (req->data == NULL) { 2435 SPDK_DEBUGLOG(nvmf, "get log command with no buffer\n"); 2436 response->status.sct = SPDK_NVME_SCT_GENERIC; 2437 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 2438 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2439 } 2440 2441 offset = (uint64_t)cmd->cdw12 | ((uint64_t)cmd->cdw13 << 32); 2442 if (offset & 3) { 2443 SPDK_ERRLOG("Invalid log page offset 0x%" PRIx64 "\n", offset); 2444 response->status.sct = SPDK_NVME_SCT_GENERIC; 2445 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 2446 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2447 } 2448 2449 rae = cmd->cdw10_bits.get_log_page.rae; 2450 numdl = cmd->cdw10_bits.get_log_page.numdl; 2451 numdu = cmd->cdw11_bits.get_log_page.numdu; 2452 len = ((numdu << 16) + numdl + (uint64_t)1) * 4; 2453 if (len > req->length) { 2454 SPDK_ERRLOG("Get log page: len (%" PRIu64 ") > buf size (%u)\n", 2455 len, req->length); 2456 response->status.sct = SPDK_NVME_SCT_GENERIC; 2457 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 2458 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2459 } 2460 2461 lid = cmd->cdw10_bits.get_log_page.lid; 2462 SPDK_DEBUGLOG(nvmf, "Get log page: LID=0x%02X offset=0x%" PRIx64 " len=0x%" PRIx64 " rae=%u\n", 2463 lid, offset, len, rae); 2464 2465 if (subsystem->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) { 2466 switch (lid) { 2467 case SPDK_NVME_LOG_DISCOVERY: 2468 if (spdk_nvmf_qpair_get_listen_trid(req->qpair, &cmd_source_trid)) { 2469 SPDK_ERRLOG("Failed to get LOG_DISCOVERY source trid\n"); 2470 response->status.sct = SPDK_NVME_SCT_GENERIC; 2471 response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 2472 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2473 } 2474 nvmf_get_discovery_log_page(subsystem->tgt, ctrlr->hostnqn, req->iov, req->iovcnt, 2475 offset, len, &cmd_source_trid); 2476 if (!rae) { 2477 nvmf_ctrlr_unmask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE_MASK_BIT); 2478 } 2479 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2480 default: 2481 goto invalid_log_page; 2482 } 2483 } else { 2484 if (offset > len) { 2485 SPDK_ERRLOG("Get log page: offset (%" PRIu64 ") > len (%" PRIu64 ")\n", 2486 offset, len); 2487 response->status.sct = SPDK_NVME_SCT_GENERIC; 2488 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 2489 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2490 } 2491 2492 switch (lid) { 2493 case SPDK_NVME_LOG_ERROR: 2494 nvmf_get_error_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae); 2495 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2496 case SPDK_NVME_LOG_HEALTH_INFORMATION: 2497 /* TODO: actually fill out log page data */ 2498 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2499 case SPDK_NVME_LOG_FIRMWARE_SLOT: 2500 nvmf_get_firmware_slot_log_page(req->iov, req->iovcnt, offset, len); 2501 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2502 case SPDK_NVME_LOG_ASYMMETRIC_NAMESPACE_ACCESS: 2503 if (subsystem->flags.ana_reporting) { 2504 nvmf_get_ana_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae); 2505 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2506 } else { 2507 goto invalid_log_page; 2508 } 2509 case SPDK_NVME_LOG_COMMAND_EFFECTS_LOG: 2510 nvmf_get_cmds_and_effects_log_page(req->iov, req->iovcnt, offset, len); 2511 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2512 case SPDK_NVME_LOG_CHANGED_NS_LIST: 2513 nvmf_get_changed_ns_list_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae); 2514 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2515 case SPDK_NVME_LOG_RESERVATION_NOTIFICATION: 2516 nvmf_get_reservation_notification_log_page(ctrlr, req->iov, req->iovcnt, offset, len, rae); 2517 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2518 default: 2519 goto invalid_log_page; 2520 } 2521 } 2522 2523 invalid_log_page: 2524 SPDK_INFOLOG(nvmf, "Unsupported Get Log Page 0x%02X\n", lid); 2525 response->status.sct = SPDK_NVME_SCT_GENERIC; 2526 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 2527 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2528 } 2529 2530 int 2531 spdk_nvmf_ctrlr_identify_ns(struct spdk_nvmf_ctrlr *ctrlr, 2532 struct spdk_nvme_cmd *cmd, 2533 struct spdk_nvme_cpl *rsp, 2534 struct spdk_nvme_ns_data *nsdata) 2535 { 2536 struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys; 2537 struct spdk_nvmf_ns *ns; 2538 uint32_t max_num_blocks; 2539 enum spdk_nvme_ana_state ana_state; 2540 2541 if (cmd->nsid == 0 || cmd->nsid > subsystem->max_nsid) { 2542 SPDK_ERRLOG("Identify Namespace for invalid NSID %u\n", cmd->nsid); 2543 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 2544 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT; 2545 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2546 } 2547 2548 ns = _nvmf_subsystem_get_ns(subsystem, cmd->nsid); 2549 if (ns == NULL || ns->bdev == NULL) { 2550 /* 2551 * Inactive namespaces should return a zero filled data structure. 2552 * The data buffer is already zeroed by nvmf_ctrlr_process_admin_cmd(), 2553 * so we can just return early here. 2554 */ 2555 SPDK_DEBUGLOG(nvmf, "Identify Namespace for inactive NSID %u\n", cmd->nsid); 2556 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 2557 rsp->status.sc = SPDK_NVME_SC_SUCCESS; 2558 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2559 } 2560 2561 nvmf_bdev_ctrlr_identify_ns(ns, nsdata, ctrlr->dif_insert_or_strip); 2562 2563 assert(ctrlr->admin_qpair); 2564 /* Due to bug in the Linux kernel NVMe driver we have to set noiob no larger than mdts */ 2565 max_num_blocks = ctrlr->admin_qpair->transport->opts.max_io_size / 2566 (1U << nsdata->lbaf[nsdata->flbas.format].lbads); 2567 if (nsdata->noiob > max_num_blocks) { 2568 nsdata->noiob = max_num_blocks; 2569 } 2570 2571 /* Set NOWS equal to Controller MDTS */ 2572 if (nsdata->nsfeat.optperf) { 2573 nsdata->nows = max_num_blocks - 1; 2574 } 2575 2576 if (subsystem->flags.ana_reporting) { 2577 assert(ns->anagrpid - 1 < subsystem->max_nsid); 2578 nsdata->anagrpid = ns->anagrpid; 2579 2580 ana_state = nvmf_ctrlr_get_ana_state(ctrlr, ns->anagrpid); 2581 if (ana_state == SPDK_NVME_ANA_INACCESSIBLE_STATE || 2582 ana_state == SPDK_NVME_ANA_PERSISTENT_LOSS_STATE) { 2583 nsdata->nuse = 0; 2584 } 2585 } 2586 2587 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2588 } 2589 2590 static void 2591 nvmf_ctrlr_populate_oacs(struct spdk_nvmf_ctrlr *ctrlr, 2592 struct spdk_nvme_ctrlr_data *cdata) 2593 { 2594 cdata->oacs = ctrlr->cdata.oacs; 2595 2596 cdata->oacs.virtualization_management = 2597 g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_VIRTUALIZATION_MANAGEMENT].hdlr != NULL; 2598 cdata->oacs.nvme_mi = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NVME_MI_SEND].hdlr != NULL 2599 && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NVME_MI_RECEIVE].hdlr != NULL; 2600 cdata->oacs.directives = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DIRECTIVE_SEND].hdlr != NULL 2601 && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DIRECTIVE_RECEIVE].hdlr != NULL; 2602 cdata->oacs.device_self_test = 2603 g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_DEVICE_SELF_TEST].hdlr != NULL; 2604 cdata->oacs.ns_manage = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NS_MANAGEMENT].hdlr != NULL 2605 && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_NS_ATTACHMENT].hdlr != NULL; 2606 cdata->oacs.firmware = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FIRMWARE_IMAGE_DOWNLOAD].hdlr != 2607 NULL 2608 && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FIRMWARE_COMMIT].hdlr != NULL; 2609 cdata->oacs.format = 2610 g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_FORMAT_NVM].hdlr != NULL; 2611 cdata->oacs.security = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_SECURITY_SEND].hdlr != NULL 2612 && g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_SECURITY_RECEIVE].hdlr != NULL; 2613 cdata->oacs.get_lba_status = g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_GET_LBA_STATUS].hdlr != 2614 NULL; 2615 } 2616 2617 int 2618 spdk_nvmf_ctrlr_identify_ctrlr(struct spdk_nvmf_ctrlr *ctrlr, struct spdk_nvme_ctrlr_data *cdata) 2619 { 2620 struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys; 2621 struct spdk_nvmf_transport *transport; 2622 2623 /* 2624 * Common fields for discovery and NVM subsystems 2625 */ 2626 assert(ctrlr->admin_qpair); 2627 transport = ctrlr->admin_qpair->transport; 2628 spdk_strcpy_pad(cdata->fr, FW_VERSION, sizeof(cdata->fr), ' '); 2629 assert((transport->opts.max_io_size % 4096) == 0); 2630 cdata->mdts = spdk_u32log2(transport->opts.max_io_size / 4096); 2631 cdata->cntlid = ctrlr->cntlid; 2632 cdata->ver = ctrlr->vcprop.vs; 2633 cdata->aerl = ctrlr->cdata.aerl; 2634 cdata->lpa.edlp = 1; 2635 cdata->elpe = 127; 2636 cdata->maxcmd = transport->opts.max_queue_depth; 2637 cdata->sgls = ctrlr->cdata.sgls; 2638 cdata->fuses.compare_and_write = 1; 2639 cdata->acwu = 0; /* ACWU is 0-based. */ 2640 if (subsystem->flags.ana_reporting) { 2641 cdata->mnan = subsystem->max_nsid; 2642 } 2643 spdk_strcpy_pad(cdata->subnqn, subsystem->subnqn, sizeof(cdata->subnqn), '\0'); 2644 2645 SPDK_DEBUGLOG(nvmf, "ctrlr data: maxcmd 0x%x\n", cdata->maxcmd); 2646 SPDK_DEBUGLOG(nvmf, "sgls data: 0x%x\n", from_le32(&cdata->sgls)); 2647 2648 2649 if (subsystem->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) { 2650 /* 2651 * NVM Discovery subsystem fields 2652 */ 2653 cdata->oaes.discovery_log_change_notices = 1; 2654 } else { 2655 cdata->vid = ctrlr->cdata.vid; 2656 cdata->ssvid = ctrlr->cdata.ssvid; 2657 cdata->ieee[0] = ctrlr->cdata.ieee[0]; 2658 cdata->ieee[1] = ctrlr->cdata.ieee[1]; 2659 cdata->ieee[2] = ctrlr->cdata.ieee[2]; 2660 2661 /* 2662 * NVM subsystem fields (reserved for discovery subsystems) 2663 */ 2664 spdk_strcpy_pad(cdata->mn, spdk_nvmf_subsystem_get_mn(subsystem), sizeof(cdata->mn), ' '); 2665 spdk_strcpy_pad(cdata->sn, spdk_nvmf_subsystem_get_sn(subsystem), sizeof(cdata->sn), ' '); 2666 cdata->kas = ctrlr->cdata.kas; 2667 2668 cdata->rab = 6; 2669 cdata->cmic.multi_port = 1; 2670 cdata->cmic.multi_ctrlr = 1; 2671 cdata->oaes.ns_attribute_notices = 1; 2672 cdata->ctratt.host_id_exhid_supported = 1; 2673 /* We do not have any actual limitation to the number of abort commands. 2674 * We follow the recommendation by the NVMe specification. 2675 */ 2676 cdata->acl = NVMF_ABORT_COMMAND_LIMIT; 2677 cdata->frmw.slot1_ro = 1; 2678 cdata->frmw.num_slots = 1; 2679 2680 cdata->lpa.celp = 1; /* Command Effects log page supported */ 2681 2682 cdata->sqes.min = 6; 2683 cdata->sqes.max = 6; 2684 cdata->cqes.min = 4; 2685 cdata->cqes.max = 4; 2686 cdata->nn = subsystem->max_nsid; 2687 cdata->vwc.present = 1; 2688 cdata->vwc.flush_broadcast = SPDK_NVME_FLUSH_BROADCAST_NOT_SUPPORTED; 2689 2690 cdata->nvmf_specific = ctrlr->cdata.nvmf_specific; 2691 2692 cdata->oncs.dsm = nvmf_ctrlr_dsm_supported(ctrlr); 2693 cdata->oncs.write_zeroes = nvmf_ctrlr_write_zeroes_supported(ctrlr); 2694 cdata->oncs.reservations = ctrlr->cdata.oncs.reservations; 2695 if (subsystem->flags.ana_reporting) { 2696 /* Asymmetric Namespace Access Reporting is supported. */ 2697 cdata->cmic.ana_reporting = 1; 2698 cdata->oaes.ana_change_notices = 1; 2699 2700 cdata->anatt = ANA_TRANSITION_TIME_IN_SEC; 2701 /* ANA Change state is not used, and ANA Persistent Loss state 2702 * is not supported for now. 2703 */ 2704 cdata->anacap.ana_optimized_state = 1; 2705 cdata->anacap.ana_non_optimized_state = 1; 2706 cdata->anacap.ana_inaccessible_state = 1; 2707 /* ANAGRPID does not change while namespace is attached to controller */ 2708 cdata->anacap.no_change_anagrpid = 1; 2709 cdata->anagrpmax = subsystem->max_nsid; 2710 cdata->nanagrpid = subsystem->max_nsid; 2711 } 2712 2713 nvmf_ctrlr_populate_oacs(ctrlr, cdata); 2714 2715 assert(subsystem->tgt != NULL); 2716 cdata->crdt[0] = subsystem->tgt->crdt[0]; 2717 cdata->crdt[1] = subsystem->tgt->crdt[1]; 2718 cdata->crdt[2] = subsystem->tgt->crdt[2]; 2719 2720 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: ioccsz 0x%x\n", 2721 cdata->nvmf_specific.ioccsz); 2722 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: iorcsz 0x%x\n", 2723 cdata->nvmf_specific.iorcsz); 2724 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: icdoff 0x%x\n", 2725 cdata->nvmf_specific.icdoff); 2726 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: ctrattr 0x%x\n", 2727 *(uint8_t *)&cdata->nvmf_specific.ctrattr); 2728 SPDK_DEBUGLOG(nvmf, "ext ctrlr data: msdbd 0x%x\n", 2729 cdata->nvmf_specific.msdbd); 2730 } 2731 2732 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2733 } 2734 2735 static int 2736 nvmf_ctrlr_identify_active_ns_list(struct spdk_nvmf_subsystem *subsystem, 2737 struct spdk_nvme_cmd *cmd, 2738 struct spdk_nvme_cpl *rsp, 2739 struct spdk_nvme_ns_list *ns_list) 2740 { 2741 struct spdk_nvmf_ns *ns; 2742 uint32_t count = 0; 2743 2744 if (cmd->nsid >= 0xfffffffeUL) { 2745 SPDK_ERRLOG("Identify Active Namespace List with invalid NSID %u\n", cmd->nsid); 2746 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT; 2747 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2748 } 2749 2750 memset(ns_list, 0, sizeof(*ns_list)); 2751 2752 for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL; 2753 ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) { 2754 if (ns->opts.nsid <= cmd->nsid) { 2755 continue; 2756 } 2757 2758 ns_list->ns_list[count++] = ns->opts.nsid; 2759 if (count == SPDK_COUNTOF(ns_list->ns_list)) { 2760 break; 2761 } 2762 } 2763 2764 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2765 } 2766 2767 static void 2768 _add_ns_id_desc(void **buf_ptr, size_t *buf_remain, 2769 enum spdk_nvme_nidt type, 2770 const void *data, size_t data_size) 2771 { 2772 struct spdk_nvme_ns_id_desc *desc; 2773 size_t desc_size = sizeof(*desc) + data_size; 2774 2775 /* 2776 * These should never fail in practice, since all valid NS ID descriptors 2777 * should be defined so that they fit in the available 4096-byte buffer. 2778 */ 2779 assert(data_size > 0); 2780 assert(data_size <= UINT8_MAX); 2781 assert(desc_size < *buf_remain); 2782 if (data_size == 0 || data_size > UINT8_MAX || desc_size > *buf_remain) { 2783 return; 2784 } 2785 2786 desc = *buf_ptr; 2787 desc->nidt = type; 2788 desc->nidl = data_size; 2789 memcpy(desc->nid, data, data_size); 2790 2791 *buf_ptr += desc_size; 2792 *buf_remain -= desc_size; 2793 } 2794 2795 static int 2796 nvmf_ctrlr_identify_ns_id_descriptor_list( 2797 struct spdk_nvmf_subsystem *subsystem, 2798 struct spdk_nvme_cmd *cmd, 2799 struct spdk_nvme_cpl *rsp, 2800 void *id_desc_list, size_t id_desc_list_size) 2801 { 2802 struct spdk_nvmf_ns *ns; 2803 size_t buf_remain = id_desc_list_size; 2804 void *buf_ptr = id_desc_list; 2805 2806 ns = _nvmf_subsystem_get_ns(subsystem, cmd->nsid); 2807 if (ns == NULL || ns->bdev == NULL) { 2808 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 2809 rsp->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT; 2810 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2811 } 2812 2813 #define ADD_ID_DESC(type, data, size) \ 2814 do { \ 2815 if (!spdk_mem_all_zero(data, size)) { \ 2816 _add_ns_id_desc(&buf_ptr, &buf_remain, type, data, size); \ 2817 } \ 2818 } while (0) 2819 2820 ADD_ID_DESC(SPDK_NVME_NIDT_EUI64, ns->opts.eui64, sizeof(ns->opts.eui64)); 2821 ADD_ID_DESC(SPDK_NVME_NIDT_NGUID, ns->opts.nguid, sizeof(ns->opts.nguid)); 2822 ADD_ID_DESC(SPDK_NVME_NIDT_UUID, &ns->opts.uuid, sizeof(ns->opts.uuid)); 2823 2824 /* 2825 * The list is automatically 0-terminated because controller to host buffers in 2826 * admin commands always get zeroed in nvmf_ctrlr_process_admin_cmd(). 2827 */ 2828 2829 #undef ADD_ID_DESC 2830 2831 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2832 } 2833 2834 static int 2835 nvmf_ctrlr_identify(struct spdk_nvmf_request *req) 2836 { 2837 uint8_t cns; 2838 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 2839 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 2840 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 2841 struct spdk_nvmf_subsystem *subsystem = ctrlr->subsys; 2842 2843 if (req->data == NULL || req->length < 4096) { 2844 SPDK_DEBUGLOG(nvmf, "identify command with invalid buffer\n"); 2845 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 2846 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 2847 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2848 } 2849 2850 cns = cmd->cdw10_bits.identify.cns; 2851 2852 if (subsystem->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY && 2853 cns != SPDK_NVME_IDENTIFY_CTRLR) { 2854 /* Discovery controllers only support Identify Controller */ 2855 goto invalid_cns; 2856 } 2857 2858 switch (cns) { 2859 case SPDK_NVME_IDENTIFY_NS: 2860 return spdk_nvmf_ctrlr_identify_ns(ctrlr, cmd, rsp, req->data); 2861 case SPDK_NVME_IDENTIFY_CTRLR: 2862 return spdk_nvmf_ctrlr_identify_ctrlr(ctrlr, req->data); 2863 case SPDK_NVME_IDENTIFY_ACTIVE_NS_LIST: 2864 return nvmf_ctrlr_identify_active_ns_list(subsystem, cmd, rsp, req->data); 2865 case SPDK_NVME_IDENTIFY_NS_ID_DESCRIPTOR_LIST: 2866 return nvmf_ctrlr_identify_ns_id_descriptor_list(subsystem, cmd, rsp, req->data, req->length); 2867 default: 2868 goto invalid_cns; 2869 } 2870 2871 invalid_cns: 2872 SPDK_INFOLOG(nvmf, "Identify command with unsupported CNS 0x%02x\n", cns); 2873 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 2874 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 2875 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 2876 } 2877 2878 static bool 2879 nvmf_qpair_abort_aer(struct spdk_nvmf_qpair *qpair, uint16_t cid) 2880 { 2881 struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr; 2882 struct spdk_nvmf_request *req; 2883 int i; 2884 2885 if (!nvmf_qpair_is_admin_queue(qpair)) { 2886 return false; 2887 } 2888 2889 assert(spdk_get_thread() == ctrlr->thread); 2890 2891 for (i = 0; i < ctrlr->nr_aer_reqs; i++) { 2892 if (ctrlr->aer_req[i]->cmd->nvme_cmd.cid == cid) { 2893 SPDK_DEBUGLOG(nvmf, "Aborting AER request\n"); 2894 req = ctrlr->aer_req[i]; 2895 ctrlr->aer_req[i] = NULL; 2896 ctrlr->nr_aer_reqs--; 2897 2898 /* Move the last req to the aborting position for making aer_reqs 2899 * in continuous 2900 */ 2901 if (i < ctrlr->nr_aer_reqs) { 2902 ctrlr->aer_req[i] = ctrlr->aer_req[ctrlr->nr_aer_reqs]; 2903 ctrlr->aer_req[ctrlr->nr_aer_reqs] = NULL; 2904 } 2905 2906 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 2907 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST; 2908 _nvmf_request_complete(req); 2909 return true; 2910 } 2911 } 2912 2913 return false; 2914 } 2915 2916 void 2917 nvmf_qpair_abort_pending_zcopy_reqs(struct spdk_nvmf_qpair *qpair) 2918 { 2919 struct spdk_nvmf_request *req, *tmp; 2920 2921 TAILQ_FOREACH_SAFE(req, &qpair->outstanding, link, tmp) { 2922 if (req->zcopy_phase == NVMF_ZCOPY_PHASE_EXECUTE) { 2923 /* Zero-copy requests are kept on the outstanding queue from the moment 2924 * zcopy_start is sent until a zcopy_end callback is received. Therefore, 2925 * we can't remove them from the outstanding queue here, but need to rely on 2926 * the transport to do a zcopy_end to release their buffers and, in turn, 2927 * remove them from the queue. 2928 */ 2929 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 2930 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST; 2931 nvmf_transport_req_free(req); 2932 } 2933 } 2934 } 2935 2936 static void 2937 nvmf_qpair_abort_request(struct spdk_nvmf_qpair *qpair, struct spdk_nvmf_request *req) 2938 { 2939 uint16_t cid = req->cmd->nvme_cmd.cdw10_bits.abort.cid; 2940 2941 if (nvmf_qpair_abort_aer(qpair, cid)) { 2942 SPDK_DEBUGLOG(nvmf, "abort ctrlr=%p sqid=%u cid=%u successful\n", 2943 qpair->ctrlr, qpair->qid, cid); 2944 req->rsp->nvme_cpl.cdw0 &= ~1U; /* Command successfully aborted */ 2945 2946 spdk_nvmf_request_complete(req); 2947 return; 2948 } 2949 2950 nvmf_transport_qpair_abort_request(qpair, req); 2951 } 2952 2953 static void 2954 nvmf_ctrlr_abort_done(struct spdk_io_channel_iter *i, int status) 2955 { 2956 struct spdk_nvmf_request *req = spdk_io_channel_iter_get_ctx(i); 2957 2958 if (status == 0) { 2959 /* There was no qpair whose ID matches SQID of the abort command. 2960 * Hence call _nvmf_request_complete() here. 2961 */ 2962 _nvmf_request_complete(req); 2963 } 2964 } 2965 2966 static void 2967 nvmf_ctrlr_abort_on_pg(struct spdk_io_channel_iter *i) 2968 { 2969 struct spdk_nvmf_request *req = spdk_io_channel_iter_get_ctx(i); 2970 struct spdk_io_channel *ch = spdk_io_channel_iter_get_channel(i); 2971 struct spdk_nvmf_poll_group *group = spdk_io_channel_get_ctx(ch); 2972 uint16_t sqid = req->cmd->nvme_cmd.cdw10_bits.abort.sqid; 2973 struct spdk_nvmf_qpair *qpair; 2974 2975 TAILQ_FOREACH(qpair, &group->qpairs, link) { 2976 if (qpair->ctrlr == req->qpair->ctrlr && qpair->qid == sqid) { 2977 /* Found the qpair */ 2978 2979 nvmf_qpair_abort_request(qpair, req); 2980 2981 /* Return -1 for the status so the iteration across threads stops. */ 2982 spdk_for_each_channel_continue(i, -1); 2983 return; 2984 } 2985 } 2986 2987 spdk_for_each_channel_continue(i, 0); 2988 } 2989 2990 static int 2991 nvmf_ctrlr_abort(struct spdk_nvmf_request *req) 2992 { 2993 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 2994 2995 rsp->cdw0 = 1U; /* Command not aborted */ 2996 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 2997 rsp->status.sc = SPDK_NVME_SC_SUCCESS; 2998 2999 /* Send a message to each poll group, searching for this ctrlr, sqid, and command. */ 3000 spdk_for_each_channel(req->qpair->ctrlr->subsys->tgt, 3001 nvmf_ctrlr_abort_on_pg, 3002 req, 3003 nvmf_ctrlr_abort_done 3004 ); 3005 3006 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 3007 } 3008 3009 int 3010 nvmf_ctrlr_abort_request(struct spdk_nvmf_request *req) 3011 { 3012 struct spdk_nvmf_request *req_to_abort = req->req_to_abort; 3013 struct spdk_bdev *bdev; 3014 struct spdk_bdev_desc *desc; 3015 struct spdk_io_channel *ch; 3016 int rc; 3017 3018 assert(req_to_abort != NULL); 3019 3020 if (g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_ABORT].hdlr && 3021 nvmf_qpair_is_admin_queue(req_to_abort->qpair)) { 3022 return g_nvmf_custom_admin_cmd_hdlrs[SPDK_NVME_OPC_ABORT].hdlr(req); 3023 } 3024 3025 rc = spdk_nvmf_request_get_bdev(req_to_abort->cmd->nvme_cmd.nsid, req_to_abort, 3026 &bdev, &desc, &ch); 3027 if (rc != 0) { 3028 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3029 } 3030 3031 return spdk_nvmf_bdev_ctrlr_abort_cmd(bdev, desc, ch, req, req_to_abort); 3032 } 3033 3034 static int 3035 get_features_generic(struct spdk_nvmf_request *req, uint32_t cdw0) 3036 { 3037 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 3038 3039 rsp->cdw0 = cdw0; 3040 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3041 } 3042 3043 /* we have to use the typedef in the function declaration to appease astyle. */ 3044 typedef enum spdk_nvme_path_status_code spdk_nvme_path_status_code_t; 3045 3046 static spdk_nvme_path_status_code_t 3047 _nvme_ana_state_to_path_status(enum spdk_nvme_ana_state ana_state) 3048 { 3049 switch (ana_state) { 3050 case SPDK_NVME_ANA_INACCESSIBLE_STATE: 3051 return SPDK_NVME_SC_ASYMMETRIC_ACCESS_INACCESSIBLE; 3052 case SPDK_NVME_ANA_PERSISTENT_LOSS_STATE: 3053 return SPDK_NVME_SC_ASYMMETRIC_ACCESS_PERSISTENT_LOSS; 3054 case SPDK_NVME_ANA_CHANGE_STATE: 3055 return SPDK_NVME_SC_ASYMMETRIC_ACCESS_TRANSITION; 3056 default: 3057 return SPDK_NVME_SC_INTERNAL_PATH_ERROR; 3058 } 3059 } 3060 3061 static int 3062 nvmf_ctrlr_get_features(struct spdk_nvmf_request *req) 3063 { 3064 uint8_t feature; 3065 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 3066 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 3067 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 3068 enum spdk_nvme_ana_state ana_state; 3069 3070 feature = cmd->cdw10_bits.get_features.fid; 3071 3072 if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) { 3073 /* 3074 * Features supported by Discovery controller 3075 */ 3076 switch (feature) { 3077 case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER: 3078 return get_features_generic(req, ctrlr->feat.keep_alive_timer.raw); 3079 case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION: 3080 return get_features_generic(req, ctrlr->feat.async_event_configuration.raw); 3081 default: 3082 SPDK_INFOLOG(nvmf, "Get Features command with unsupported feature ID 0x%02x\n", feature); 3083 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 3084 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3085 } 3086 } 3087 /* 3088 * Process Get Features command for non-discovery controller 3089 */ 3090 ana_state = nvmf_ctrlr_get_ana_state_from_nsid(ctrlr, cmd->nsid); 3091 switch (ana_state) { 3092 case SPDK_NVME_ANA_INACCESSIBLE_STATE: 3093 case SPDK_NVME_ANA_PERSISTENT_LOSS_STATE: 3094 case SPDK_NVME_ANA_CHANGE_STATE: 3095 switch (feature) { 3096 case SPDK_NVME_FEAT_ERROR_RECOVERY: 3097 case SPDK_NVME_FEAT_WRITE_ATOMICITY: 3098 case SPDK_NVME_FEAT_HOST_RESERVE_MASK: 3099 case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST: 3100 response->status.sct = SPDK_NVME_SCT_PATH; 3101 response->status.sc = _nvme_ana_state_to_path_status(ana_state); 3102 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3103 default: 3104 break; 3105 } 3106 break; 3107 default: 3108 break; 3109 } 3110 3111 switch (feature) { 3112 case SPDK_NVME_FEAT_ARBITRATION: 3113 return get_features_generic(req, ctrlr->feat.arbitration.raw); 3114 case SPDK_NVME_FEAT_POWER_MANAGEMENT: 3115 return get_features_generic(req, ctrlr->feat.power_management.raw); 3116 case SPDK_NVME_FEAT_TEMPERATURE_THRESHOLD: 3117 return nvmf_ctrlr_get_features_temperature_threshold(req); 3118 case SPDK_NVME_FEAT_ERROR_RECOVERY: 3119 return get_features_generic(req, ctrlr->feat.error_recovery.raw); 3120 case SPDK_NVME_FEAT_VOLATILE_WRITE_CACHE: 3121 return get_features_generic(req, ctrlr->feat.volatile_write_cache.raw); 3122 case SPDK_NVME_FEAT_NUMBER_OF_QUEUES: 3123 return get_features_generic(req, ctrlr->feat.number_of_queues.raw); 3124 case SPDK_NVME_FEAT_INTERRUPT_COALESCING: 3125 return get_features_generic(req, ctrlr->feat.interrupt_coalescing.raw); 3126 case SPDK_NVME_FEAT_INTERRUPT_VECTOR_CONFIGURATION: 3127 return nvmf_ctrlr_get_features_interrupt_vector_configuration(req); 3128 case SPDK_NVME_FEAT_WRITE_ATOMICITY: 3129 return get_features_generic(req, ctrlr->feat.write_atomicity.raw); 3130 case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION: 3131 return get_features_generic(req, ctrlr->feat.async_event_configuration.raw); 3132 case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER: 3133 return get_features_generic(req, ctrlr->feat.keep_alive_timer.raw); 3134 case SPDK_NVME_FEAT_HOST_IDENTIFIER: 3135 return nvmf_ctrlr_get_features_host_identifier(req); 3136 case SPDK_NVME_FEAT_HOST_RESERVE_MASK: 3137 return nvmf_ctrlr_get_features_reservation_notification_mask(req); 3138 case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST: 3139 return nvmf_ctrlr_get_features_reservation_persistence(req); 3140 case SPDK_NVME_FEAT_HOST_BEHAVIOR_SUPPORT: 3141 return nvmf_ctrlr_get_features_host_behavior_support(req); 3142 default: 3143 SPDK_INFOLOG(nvmf, "Get Features command with unsupported feature ID 0x%02x\n", feature); 3144 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 3145 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3146 } 3147 } 3148 3149 static int 3150 nvmf_ctrlr_set_features(struct spdk_nvmf_request *req) 3151 { 3152 uint8_t feature, save; 3153 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 3154 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 3155 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 3156 enum spdk_nvme_ana_state ana_state; 3157 /* 3158 * Features are not saveable by the controller as indicated by 3159 * ONCS field of the Identify Controller data. 3160 * */ 3161 save = cmd->cdw10_bits.set_features.sv; 3162 if (save) { 3163 response->status.sc = SPDK_NVME_SC_FEATURE_ID_NOT_SAVEABLE; 3164 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 3165 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3166 } 3167 3168 feature = cmd->cdw10_bits.set_features.fid; 3169 3170 if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) { 3171 /* 3172 * Features supported by Discovery controller 3173 */ 3174 switch (feature) { 3175 case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER: 3176 return nvmf_ctrlr_set_features_keep_alive_timer(req); 3177 case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION: 3178 return nvmf_ctrlr_set_features_async_event_configuration(req); 3179 default: 3180 SPDK_INFOLOG(nvmf, "Set Features command with unsupported feature ID 0x%02x\n", feature); 3181 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 3182 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3183 } 3184 } 3185 /* 3186 * Process Set Features command for non-discovery controller 3187 */ 3188 ana_state = nvmf_ctrlr_get_ana_state_from_nsid(ctrlr, cmd->nsid); 3189 switch (ana_state) { 3190 case SPDK_NVME_ANA_INACCESSIBLE_STATE: 3191 case SPDK_NVME_ANA_CHANGE_STATE: 3192 if (cmd->nsid == SPDK_NVME_GLOBAL_NS_TAG) { 3193 response->status.sct = SPDK_NVME_SCT_PATH; 3194 response->status.sc = _nvme_ana_state_to_path_status(ana_state); 3195 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3196 } else { 3197 switch (feature) { 3198 case SPDK_NVME_FEAT_ERROR_RECOVERY: 3199 case SPDK_NVME_FEAT_WRITE_ATOMICITY: 3200 case SPDK_NVME_FEAT_HOST_RESERVE_MASK: 3201 case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST: 3202 response->status.sct = SPDK_NVME_SCT_PATH; 3203 response->status.sc = _nvme_ana_state_to_path_status(ana_state); 3204 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3205 default: 3206 break; 3207 } 3208 } 3209 break; 3210 case SPDK_NVME_ANA_PERSISTENT_LOSS_STATE: 3211 response->status.sct = SPDK_NVME_SCT_PATH; 3212 response->status.sc = SPDK_NVME_SC_ASYMMETRIC_ACCESS_PERSISTENT_LOSS; 3213 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3214 default: 3215 break; 3216 } 3217 3218 switch (feature) { 3219 case SPDK_NVME_FEAT_ARBITRATION: 3220 return nvmf_ctrlr_set_features_arbitration(req); 3221 case SPDK_NVME_FEAT_POWER_MANAGEMENT: 3222 return nvmf_ctrlr_set_features_power_management(req); 3223 case SPDK_NVME_FEAT_TEMPERATURE_THRESHOLD: 3224 return nvmf_ctrlr_set_features_temperature_threshold(req); 3225 case SPDK_NVME_FEAT_ERROR_RECOVERY: 3226 return nvmf_ctrlr_set_features_error_recovery(req); 3227 case SPDK_NVME_FEAT_VOLATILE_WRITE_CACHE: 3228 return nvmf_ctrlr_set_features_volatile_write_cache(req); 3229 case SPDK_NVME_FEAT_NUMBER_OF_QUEUES: 3230 return nvmf_ctrlr_set_features_number_of_queues(req); 3231 case SPDK_NVME_FEAT_INTERRUPT_COALESCING: 3232 response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC; 3233 response->status.sc = SPDK_NVME_SC_FEATURE_NOT_CHANGEABLE; 3234 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3235 case SPDK_NVME_FEAT_WRITE_ATOMICITY: 3236 return nvmf_ctrlr_set_features_write_atomicity(req); 3237 case SPDK_NVME_FEAT_ASYNC_EVENT_CONFIGURATION: 3238 return nvmf_ctrlr_set_features_async_event_configuration(req); 3239 case SPDK_NVME_FEAT_KEEP_ALIVE_TIMER: 3240 return nvmf_ctrlr_set_features_keep_alive_timer(req); 3241 case SPDK_NVME_FEAT_HOST_IDENTIFIER: 3242 return nvmf_ctrlr_set_features_host_identifier(req); 3243 case SPDK_NVME_FEAT_HOST_RESERVE_MASK: 3244 return nvmf_ctrlr_set_features_reservation_notification_mask(req); 3245 case SPDK_NVME_FEAT_HOST_RESERVE_PERSIST: 3246 return nvmf_ctrlr_set_features_reservation_persistence(req); 3247 case SPDK_NVME_FEAT_HOST_BEHAVIOR_SUPPORT: 3248 return nvmf_ctrlr_set_features_host_behavior_support(req); 3249 default: 3250 SPDK_INFOLOG(nvmf, "Set Features command with unsupported feature ID 0x%02x\n", feature); 3251 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 3252 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3253 } 3254 } 3255 3256 static int 3257 nvmf_ctrlr_keep_alive(struct spdk_nvmf_request *req) 3258 { 3259 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 3260 3261 SPDK_DEBUGLOG(nvmf, "Keep Alive\n"); 3262 /* 3263 * To handle keep alive just clear or reset the 3264 * ctrlr based keep alive duration counter. 3265 * When added, a separate timer based process 3266 * will monitor if the time since last recorded 3267 * keep alive has exceeded the max duration and 3268 * take appropriate action. 3269 */ 3270 ctrlr->last_keep_alive_tick = spdk_get_ticks(); 3271 3272 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3273 } 3274 3275 int 3276 nvmf_ctrlr_process_admin_cmd(struct spdk_nvmf_request *req) 3277 { 3278 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 3279 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 3280 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 3281 int rc; 3282 3283 if (ctrlr == NULL) { 3284 SPDK_ERRLOG("Admin command sent before CONNECT\n"); 3285 response->status.sct = SPDK_NVME_SCT_GENERIC; 3286 response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR; 3287 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3288 } 3289 3290 assert(spdk_get_thread() == ctrlr->thread); 3291 3292 if (cmd->fuse != 0) { 3293 /* Fused admin commands are not supported. */ 3294 response->status.sct = SPDK_NVME_SCT_GENERIC; 3295 response->status.sc = SPDK_NVME_SC_INVALID_FIELD; 3296 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3297 } 3298 3299 if (ctrlr->vcprop.cc.bits.en != 1) { 3300 SPDK_ERRLOG("Admin command sent to disabled controller\n"); 3301 response->status.sct = SPDK_NVME_SCT_GENERIC; 3302 response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR; 3303 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3304 } 3305 3306 if (req->data && spdk_nvme_opc_get_data_transfer(cmd->opc) == SPDK_NVME_DATA_CONTROLLER_TO_HOST) { 3307 _clear_iovs(req->iov, req->iovcnt); 3308 } 3309 3310 if (ctrlr->subsys->subtype == SPDK_NVMF_SUBTYPE_DISCOVERY) { 3311 /* Discovery controllers only support these admin OPS. */ 3312 switch (cmd->opc) { 3313 case SPDK_NVME_OPC_IDENTIFY: 3314 case SPDK_NVME_OPC_GET_LOG_PAGE: 3315 case SPDK_NVME_OPC_KEEP_ALIVE: 3316 case SPDK_NVME_OPC_SET_FEATURES: 3317 case SPDK_NVME_OPC_GET_FEATURES: 3318 case SPDK_NVME_OPC_ASYNC_EVENT_REQUEST: 3319 break; 3320 default: 3321 goto invalid_opcode; 3322 } 3323 } 3324 3325 /* Call a custom adm cmd handler if set. Aborts are handled in a different path (see nvmf_passthru_admin_cmd) */ 3326 if (g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].hdlr && cmd->opc != SPDK_NVME_OPC_ABORT) { 3327 rc = g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].hdlr(req); 3328 if (rc >= SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) { 3329 /* The handler took care of this command */ 3330 return rc; 3331 } 3332 } 3333 3334 switch (cmd->opc) { 3335 case SPDK_NVME_OPC_GET_LOG_PAGE: 3336 return nvmf_ctrlr_get_log_page(req); 3337 case SPDK_NVME_OPC_IDENTIFY: 3338 return nvmf_ctrlr_identify(req); 3339 case SPDK_NVME_OPC_ABORT: 3340 return nvmf_ctrlr_abort(req); 3341 case SPDK_NVME_OPC_GET_FEATURES: 3342 return nvmf_ctrlr_get_features(req); 3343 case SPDK_NVME_OPC_SET_FEATURES: 3344 return nvmf_ctrlr_set_features(req); 3345 case SPDK_NVME_OPC_ASYNC_EVENT_REQUEST: 3346 return nvmf_ctrlr_async_event_request(req); 3347 case SPDK_NVME_OPC_KEEP_ALIVE: 3348 return nvmf_ctrlr_keep_alive(req); 3349 3350 case SPDK_NVME_OPC_CREATE_IO_SQ: 3351 case SPDK_NVME_OPC_CREATE_IO_CQ: 3352 case SPDK_NVME_OPC_DELETE_IO_SQ: 3353 case SPDK_NVME_OPC_DELETE_IO_CQ: 3354 /* Create and Delete I/O CQ/SQ not allowed in NVMe-oF */ 3355 goto invalid_opcode; 3356 3357 default: 3358 goto invalid_opcode; 3359 } 3360 3361 invalid_opcode: 3362 SPDK_INFOLOG(nvmf, "Unsupported admin opcode 0x%x\n", cmd->opc); 3363 response->status.sct = SPDK_NVME_SCT_GENERIC; 3364 response->status.sc = SPDK_NVME_SC_INVALID_OPCODE; 3365 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3366 } 3367 3368 static int 3369 nvmf_ctrlr_process_fabrics_cmd(struct spdk_nvmf_request *req) 3370 { 3371 struct spdk_nvmf_qpair *qpair = req->qpair; 3372 struct spdk_nvmf_capsule_cmd *cap_hdr; 3373 3374 cap_hdr = &req->cmd->nvmf_cmd; 3375 3376 if (qpair->ctrlr == NULL) { 3377 /* No ctrlr established yet; the only valid command is Connect */ 3378 if (cap_hdr->fctype == SPDK_NVMF_FABRIC_COMMAND_CONNECT) { 3379 return nvmf_ctrlr_cmd_connect(req); 3380 } else { 3381 SPDK_DEBUGLOG(nvmf, "Got fctype 0x%x, expected Connect\n", 3382 cap_hdr->fctype); 3383 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 3384 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR; 3385 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3386 } 3387 } else if (nvmf_qpair_is_admin_queue(qpair)) { 3388 /* 3389 * Controller session is established, and this is an admin queue. 3390 * Disallow Connect and allow other fabrics commands. 3391 */ 3392 switch (cap_hdr->fctype) { 3393 case SPDK_NVMF_FABRIC_COMMAND_PROPERTY_SET: 3394 return nvmf_property_set(req); 3395 case SPDK_NVMF_FABRIC_COMMAND_PROPERTY_GET: 3396 return nvmf_property_get(req); 3397 default: 3398 SPDK_DEBUGLOG(nvmf, "unknown fctype 0x%02x\n", 3399 cap_hdr->fctype); 3400 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 3401 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE; 3402 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3403 } 3404 } else { 3405 /* Controller session is established, and this is an I/O queue */ 3406 /* For now, no I/O-specific Fabrics commands are implemented (other than Connect) */ 3407 SPDK_DEBUGLOG(nvmf, "Unexpected I/O fctype 0x%x\n", cap_hdr->fctype); 3408 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 3409 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE; 3410 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3411 } 3412 } 3413 3414 static inline void 3415 nvmf_ctrlr_queue_pending_async_event(struct spdk_nvmf_ctrlr *ctrlr, 3416 union spdk_nvme_async_event_completion *event) 3417 { 3418 struct spdk_nvmf_async_event_completion *nvmf_event; 3419 3420 nvmf_event = calloc(1, sizeof(*nvmf_event)); 3421 if (!nvmf_event) { 3422 SPDK_ERRLOG("Alloc nvmf event failed, ignore the event\n"); 3423 return; 3424 } 3425 nvmf_event->event.raw = event->raw; 3426 STAILQ_INSERT_TAIL(&ctrlr->async_events, nvmf_event, link); 3427 } 3428 3429 static inline int 3430 nvmf_ctrlr_async_event_notification(struct spdk_nvmf_ctrlr *ctrlr, 3431 union spdk_nvme_async_event_completion *event) 3432 { 3433 struct spdk_nvmf_request *req; 3434 struct spdk_nvme_cpl *rsp; 3435 3436 assert(spdk_get_thread() == ctrlr->thread); 3437 3438 /* If there is no outstanding AER request, queue the event. Then 3439 * if an AER is later submitted, this event can be sent as a 3440 * response. 3441 */ 3442 if (ctrlr->nr_aer_reqs == 0) { 3443 nvmf_ctrlr_queue_pending_async_event(ctrlr, event); 3444 return 0; 3445 } 3446 3447 req = ctrlr->aer_req[--ctrlr->nr_aer_reqs]; 3448 rsp = &req->rsp->nvme_cpl; 3449 3450 rsp->cdw0 = event->raw; 3451 3452 _nvmf_request_complete(req); 3453 ctrlr->aer_req[ctrlr->nr_aer_reqs] = NULL; 3454 3455 return 0; 3456 } 3457 3458 int 3459 nvmf_ctrlr_async_event_ns_notice(struct spdk_nvmf_ctrlr *ctrlr) 3460 { 3461 union spdk_nvme_async_event_completion event = {0}; 3462 3463 /* Users may disable the event notification */ 3464 if (!ctrlr->feat.async_event_configuration.bits.ns_attr_notice) { 3465 return 0; 3466 } 3467 3468 if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGE_MASK_BIT)) { 3469 return 0; 3470 } 3471 3472 event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE; 3473 event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGED; 3474 event.bits.log_page_identifier = SPDK_NVME_LOG_CHANGED_NS_LIST; 3475 3476 return nvmf_ctrlr_async_event_notification(ctrlr, &event); 3477 } 3478 3479 int 3480 nvmf_ctrlr_async_event_ana_change_notice(struct spdk_nvmf_ctrlr *ctrlr) 3481 { 3482 union spdk_nvme_async_event_completion event = {0}; 3483 3484 /* Users may disable the event notification */ 3485 if (!ctrlr->feat.async_event_configuration.bits.ana_change_notice) { 3486 return 0; 3487 } 3488 3489 if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ANA_CHANGE_MASK_BIT)) { 3490 return 0; 3491 } 3492 3493 event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE; 3494 event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_ANA_CHANGE; 3495 event.bits.log_page_identifier = SPDK_NVME_LOG_ASYMMETRIC_NAMESPACE_ACCESS; 3496 3497 return nvmf_ctrlr_async_event_notification(ctrlr, &event); 3498 } 3499 3500 void 3501 nvmf_ctrlr_async_event_reservation_notification(struct spdk_nvmf_ctrlr *ctrlr) 3502 { 3503 union spdk_nvme_async_event_completion event = {0}; 3504 3505 if (!ctrlr->num_avail_log_pages) { 3506 return; 3507 } 3508 3509 if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL_MASK_BIT)) { 3510 return; 3511 } 3512 3513 event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_IO; 3514 event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_RESERVATION_LOG_AVAIL; 3515 event.bits.log_page_identifier = SPDK_NVME_LOG_RESERVATION_NOTIFICATION; 3516 3517 nvmf_ctrlr_async_event_notification(ctrlr, &event); 3518 } 3519 3520 void 3521 nvmf_ctrlr_async_event_discovery_log_change_notice(void *ctx) 3522 { 3523 union spdk_nvme_async_event_completion event = {0}; 3524 struct spdk_nvmf_ctrlr *ctrlr = ctx; 3525 3526 /* Users may disable the event notification manually or 3527 * it may not be enabled due to keep alive timeout 3528 * not being set in connect command to discovery controller. 3529 */ 3530 if (!ctrlr->feat.async_event_configuration.bits.discovery_log_change_notice) { 3531 return; 3532 } 3533 3534 if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE_MASK_BIT)) { 3535 return; 3536 } 3537 3538 event.bits.async_event_type = SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE; 3539 event.bits.async_event_info = SPDK_NVME_ASYNC_EVENT_DISCOVERY_LOG_CHANGE; 3540 event.bits.log_page_identifier = SPDK_NVME_LOG_DISCOVERY; 3541 3542 nvmf_ctrlr_async_event_notification(ctrlr, &event); 3543 } 3544 3545 int 3546 nvmf_ctrlr_async_event_error_event(struct spdk_nvmf_ctrlr *ctrlr, 3547 union spdk_nvme_async_event_completion event) 3548 { 3549 if (!nvmf_ctrlr_mask_aen(ctrlr, SPDK_NVME_ASYNC_EVENT_ERROR_MASK_BIT)) { 3550 return 0; 3551 } 3552 3553 if (event.bits.async_event_type != SPDK_NVME_ASYNC_EVENT_TYPE_ERROR || 3554 event.bits.async_event_info > SPDK_NVME_ASYNC_EVENT_FW_IMAGE_LOAD) { 3555 return 0; 3556 } 3557 3558 return nvmf_ctrlr_async_event_notification(ctrlr, &event); 3559 } 3560 3561 void 3562 nvmf_qpair_free_aer(struct spdk_nvmf_qpair *qpair) 3563 { 3564 struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr; 3565 int i; 3566 3567 if (!nvmf_qpair_is_admin_queue(qpair)) { 3568 return; 3569 } 3570 3571 assert(spdk_get_thread() == ctrlr->thread); 3572 3573 for (i = 0; i < ctrlr->nr_aer_reqs; i++) { 3574 spdk_nvmf_request_free(ctrlr->aer_req[i]); 3575 ctrlr->aer_req[i] = NULL; 3576 } 3577 3578 ctrlr->nr_aer_reqs = 0; 3579 } 3580 3581 void 3582 nvmf_ctrlr_abort_aer(struct spdk_nvmf_ctrlr *ctrlr) 3583 { 3584 struct spdk_nvmf_request *req; 3585 int i; 3586 3587 assert(spdk_get_thread() == ctrlr->thread); 3588 3589 if (!ctrlr->nr_aer_reqs) { 3590 return; 3591 } 3592 3593 for (i = 0; i < ctrlr->nr_aer_reqs; i++) { 3594 req = ctrlr->aer_req[i]; 3595 3596 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 3597 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_ABORTED_BY_REQUEST; 3598 _nvmf_request_complete(req); 3599 3600 ctrlr->aer_req[i] = NULL; 3601 } 3602 3603 ctrlr->nr_aer_reqs = 0; 3604 } 3605 3606 static void 3607 _nvmf_ctrlr_add_reservation_log(void *ctx) 3608 { 3609 struct spdk_nvmf_reservation_log *log = (struct spdk_nvmf_reservation_log *)ctx; 3610 struct spdk_nvmf_ctrlr *ctrlr = log->ctrlr; 3611 3612 ctrlr->log_page_count++; 3613 3614 /* Maximum number of queued log pages is 255 */ 3615 if (ctrlr->num_avail_log_pages == 0xff) { 3616 struct spdk_nvmf_reservation_log *entry; 3617 entry = TAILQ_LAST(&ctrlr->log_head, log_page_head); 3618 entry->log.log_page_count = ctrlr->log_page_count; 3619 free(log); 3620 return; 3621 } 3622 3623 log->log.log_page_count = ctrlr->log_page_count; 3624 log->log.num_avail_log_pages = ctrlr->num_avail_log_pages++; 3625 TAILQ_INSERT_TAIL(&ctrlr->log_head, log, link); 3626 3627 nvmf_ctrlr_async_event_reservation_notification(ctrlr); 3628 } 3629 3630 void 3631 nvmf_ctrlr_reservation_notice_log(struct spdk_nvmf_ctrlr *ctrlr, 3632 struct spdk_nvmf_ns *ns, 3633 enum spdk_nvme_reservation_notification_log_page_type type) 3634 { 3635 struct spdk_nvmf_reservation_log *log; 3636 3637 switch (type) { 3638 case SPDK_NVME_RESERVATION_LOG_PAGE_EMPTY: 3639 return; 3640 case SPDK_NVME_REGISTRATION_PREEMPTED: 3641 if (ns->mask & SPDK_NVME_REGISTRATION_PREEMPTED_MASK) { 3642 return; 3643 } 3644 break; 3645 case SPDK_NVME_RESERVATION_RELEASED: 3646 if (ns->mask & SPDK_NVME_RESERVATION_RELEASED_MASK) { 3647 return; 3648 } 3649 break; 3650 case SPDK_NVME_RESERVATION_PREEMPTED: 3651 if (ns->mask & SPDK_NVME_RESERVATION_PREEMPTED_MASK) { 3652 return; 3653 } 3654 break; 3655 default: 3656 return; 3657 } 3658 3659 log = calloc(1, sizeof(*log)); 3660 if (!log) { 3661 SPDK_ERRLOG("Alloc log page failed, ignore the log\n"); 3662 return; 3663 } 3664 log->ctrlr = ctrlr; 3665 log->log.type = type; 3666 log->log.nsid = ns->nsid; 3667 3668 spdk_thread_send_msg(ctrlr->thread, _nvmf_ctrlr_add_reservation_log, log); 3669 } 3670 3671 /* Check from subsystem poll group's namespace information data structure */ 3672 static bool 3673 nvmf_ns_info_ctrlr_is_registrant(struct spdk_nvmf_subsystem_pg_ns_info *ns_info, 3674 struct spdk_nvmf_ctrlr *ctrlr) 3675 { 3676 uint32_t i; 3677 3678 for (i = 0; i < SPDK_NVMF_MAX_NUM_REGISTRANTS; i++) { 3679 if (!spdk_uuid_compare(&ns_info->reg_hostid[i], &ctrlr->hostid)) { 3680 return true; 3681 } 3682 } 3683 3684 return false; 3685 } 3686 3687 /* 3688 * Check the NVMe command is permitted or not for current controller(Host). 3689 */ 3690 static int 3691 nvmf_ns_reservation_request_check(struct spdk_nvmf_subsystem_pg_ns_info *ns_info, 3692 struct spdk_nvmf_ctrlr *ctrlr, 3693 struct spdk_nvmf_request *req) 3694 { 3695 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 3696 enum spdk_nvme_reservation_type rtype = ns_info->rtype; 3697 uint8_t status = SPDK_NVME_SC_SUCCESS; 3698 uint8_t racqa; 3699 bool is_registrant; 3700 3701 /* No valid reservation */ 3702 if (!rtype) { 3703 return 0; 3704 } 3705 3706 is_registrant = nvmf_ns_info_ctrlr_is_registrant(ns_info, ctrlr); 3707 /* All registrants type and current ctrlr is a valid registrant */ 3708 if ((rtype == SPDK_NVME_RESERVE_WRITE_EXCLUSIVE_ALL_REGS || 3709 rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_ALL_REGS) && is_registrant) { 3710 return 0; 3711 } else if (!spdk_uuid_compare(&ns_info->holder_id, &ctrlr->hostid)) { 3712 return 0; 3713 } 3714 3715 /* Non-holder for current controller */ 3716 switch (cmd->opc) { 3717 case SPDK_NVME_OPC_READ: 3718 case SPDK_NVME_OPC_COMPARE: 3719 if (rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS) { 3720 status = SPDK_NVME_SC_RESERVATION_CONFLICT; 3721 goto exit; 3722 } 3723 if ((rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_REG_ONLY || 3724 rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS_ALL_REGS) && !is_registrant) { 3725 status = SPDK_NVME_SC_RESERVATION_CONFLICT; 3726 } 3727 break; 3728 case SPDK_NVME_OPC_FLUSH: 3729 case SPDK_NVME_OPC_WRITE: 3730 case SPDK_NVME_OPC_WRITE_UNCORRECTABLE: 3731 case SPDK_NVME_OPC_WRITE_ZEROES: 3732 case SPDK_NVME_OPC_DATASET_MANAGEMENT: 3733 if (rtype == SPDK_NVME_RESERVE_WRITE_EXCLUSIVE || 3734 rtype == SPDK_NVME_RESERVE_EXCLUSIVE_ACCESS) { 3735 status = SPDK_NVME_SC_RESERVATION_CONFLICT; 3736 goto exit; 3737 } 3738 if (!is_registrant) { 3739 status = SPDK_NVME_SC_RESERVATION_CONFLICT; 3740 } 3741 break; 3742 case SPDK_NVME_OPC_RESERVATION_ACQUIRE: 3743 racqa = cmd->cdw10_bits.resv_acquire.racqa; 3744 if (racqa == SPDK_NVME_RESERVE_ACQUIRE) { 3745 status = SPDK_NVME_SC_RESERVATION_CONFLICT; 3746 goto exit; 3747 } 3748 if (!is_registrant) { 3749 status = SPDK_NVME_SC_RESERVATION_CONFLICT; 3750 } 3751 break; 3752 case SPDK_NVME_OPC_RESERVATION_RELEASE: 3753 if (!is_registrant) { 3754 status = SPDK_NVME_SC_RESERVATION_CONFLICT; 3755 } 3756 break; 3757 default: 3758 break; 3759 } 3760 3761 exit: 3762 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 3763 req->rsp->nvme_cpl.status.sc = status; 3764 if (status == SPDK_NVME_SC_RESERVATION_CONFLICT) { 3765 return -EPERM; 3766 } 3767 3768 return 0; 3769 } 3770 3771 static int 3772 nvmf_ctrlr_process_io_fused_cmd(struct spdk_nvmf_request *req, struct spdk_bdev *bdev, 3773 struct spdk_bdev_desc *desc, struct spdk_io_channel *ch) 3774 { 3775 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 3776 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 3777 struct spdk_nvmf_request *first_fused_req = req->qpair->first_fused_req; 3778 int rc; 3779 3780 if (cmd->fuse == SPDK_NVME_CMD_FUSE_FIRST) { 3781 /* first fused operation (should be compare) */ 3782 if (first_fused_req != NULL) { 3783 struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl; 3784 3785 SPDK_ERRLOG("Wrong sequence of fused operations\n"); 3786 3787 /* abort req->qpair->first_fused_request and continue with new fused command */ 3788 fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED; 3789 fused_response->status.sct = SPDK_NVME_SCT_GENERIC; 3790 _nvmf_request_complete(first_fused_req); 3791 } else if (cmd->opc != SPDK_NVME_OPC_COMPARE) { 3792 SPDK_ERRLOG("Wrong op code of fused operations\n"); 3793 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 3794 rsp->status.sc = SPDK_NVME_SC_INVALID_OPCODE; 3795 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3796 } 3797 3798 req->qpair->first_fused_req = req; 3799 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 3800 } else if (cmd->fuse == SPDK_NVME_CMD_FUSE_SECOND) { 3801 /* second fused operation (should be write) */ 3802 if (first_fused_req == NULL) { 3803 SPDK_ERRLOG("Wrong sequence of fused operations\n"); 3804 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 3805 rsp->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED; 3806 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3807 } else if (cmd->opc != SPDK_NVME_OPC_WRITE) { 3808 struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl; 3809 3810 SPDK_ERRLOG("Wrong op code of fused operations\n"); 3811 3812 /* abort req->qpair->first_fused_request and fail current command */ 3813 fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED; 3814 fused_response->status.sct = SPDK_NVME_SCT_GENERIC; 3815 _nvmf_request_complete(first_fused_req); 3816 3817 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 3818 rsp->status.sc = SPDK_NVME_SC_INVALID_OPCODE; 3819 req->qpair->first_fused_req = NULL; 3820 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3821 } 3822 3823 /* save request of first command to generate response later */ 3824 req->first_fused_req = first_fused_req; 3825 req->qpair->first_fused_req = NULL; 3826 } else { 3827 SPDK_ERRLOG("Invalid fused command fuse field.\n"); 3828 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 3829 rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD; 3830 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3831 } 3832 3833 rc = nvmf_bdev_ctrlr_compare_and_write_cmd(bdev, desc, ch, req->first_fused_req, req); 3834 3835 if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) { 3836 if (spdk_nvme_cpl_is_error(rsp)) { 3837 struct spdk_nvme_cpl *fused_response = &first_fused_req->rsp->nvme_cpl; 3838 3839 fused_response->status = rsp->status; 3840 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 3841 rsp->status.sc = SPDK_NVME_SC_ABORTED_FAILED_FUSED; 3842 /* Complete first of fused commands. Second will be completed by upper layer */ 3843 _nvmf_request_complete(first_fused_req); 3844 req->first_fused_req = NULL; 3845 } 3846 } 3847 3848 return rc; 3849 } 3850 3851 bool 3852 nvmf_ctrlr_use_zcopy(struct spdk_nvmf_request *req) 3853 { 3854 struct spdk_nvmf_transport *transport = req->qpair->transport; 3855 struct spdk_nvmf_ns *ns; 3856 3857 assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_NONE); 3858 3859 if (!transport->opts.zcopy) { 3860 return false; 3861 } 3862 3863 if (nvmf_qpair_is_admin_queue(req->qpair)) { 3864 /* Admin queue */ 3865 return false; 3866 } 3867 3868 if ((req->cmd->nvme_cmd.opc != SPDK_NVME_OPC_WRITE) && 3869 (req->cmd->nvme_cmd.opc != SPDK_NVME_OPC_READ)) { 3870 /* Not a READ or WRITE command */ 3871 return false; 3872 } 3873 3874 if (req->cmd->nvme_cmd.fuse != SPDK_NVME_CMD_FUSE_NONE) { 3875 /* Fused commands dont use zcopy buffers */ 3876 return false; 3877 } 3878 3879 ns = _nvmf_subsystem_get_ns(req->qpair->ctrlr->subsys, req->cmd->nvme_cmd.nsid); 3880 if (ns == NULL || ns->bdev == NULL || !ns->zcopy) { 3881 return false; 3882 } 3883 3884 req->zcopy_phase = NVMF_ZCOPY_PHASE_INIT; 3885 return true; 3886 } 3887 3888 void 3889 spdk_nvmf_request_zcopy_start(struct spdk_nvmf_request *req) 3890 { 3891 assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_INIT); 3892 3893 /* Set iovcnt to be the maximum number of iovs that the ZCOPY can use */ 3894 req->iovcnt = NVMF_REQ_MAX_BUFFERS; 3895 3896 spdk_nvmf_request_exec(req); 3897 } 3898 3899 void 3900 spdk_nvmf_request_zcopy_end(struct spdk_nvmf_request *req, bool commit) 3901 { 3902 assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_EXECUTE); 3903 req->zcopy_phase = NVMF_ZCOPY_PHASE_END_PENDING; 3904 3905 nvmf_bdev_ctrlr_zcopy_end(req, commit); 3906 } 3907 3908 int 3909 nvmf_ctrlr_process_io_cmd(struct spdk_nvmf_request *req) 3910 { 3911 uint32_t nsid; 3912 struct spdk_nvmf_ns *ns; 3913 struct spdk_bdev *bdev; 3914 struct spdk_bdev_desc *desc; 3915 struct spdk_io_channel *ch; 3916 struct spdk_nvmf_poll_group *group = req->qpair->group; 3917 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 3918 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 3919 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 3920 struct spdk_nvmf_subsystem_pg_ns_info *ns_info; 3921 enum spdk_nvme_ana_state ana_state; 3922 3923 /* pre-set response details for this command */ 3924 response->status.sc = SPDK_NVME_SC_SUCCESS; 3925 nsid = cmd->nsid; 3926 3927 if (spdk_unlikely(ctrlr == NULL)) { 3928 SPDK_ERRLOG("I/O command sent before CONNECT\n"); 3929 response->status.sct = SPDK_NVME_SCT_GENERIC; 3930 response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR; 3931 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3932 } 3933 3934 if (spdk_unlikely(ctrlr->vcprop.cc.bits.en != 1)) { 3935 SPDK_ERRLOG("I/O command sent to disabled controller\n"); 3936 response->status.sct = SPDK_NVME_SCT_GENERIC; 3937 response->status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR; 3938 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3939 } 3940 3941 ns = _nvmf_subsystem_get_ns(ctrlr->subsys, nsid); 3942 if (ns == NULL || ns->bdev == NULL) { 3943 SPDK_DEBUGLOG(nvmf, "Unsuccessful query for nsid %u\n", cmd->nsid); 3944 response->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT; 3945 response->status.dnr = 1; 3946 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3947 } 3948 3949 ana_state = nvmf_ctrlr_get_ana_state(ctrlr, ns->anagrpid); 3950 if (spdk_unlikely(ana_state != SPDK_NVME_ANA_OPTIMIZED_STATE && 3951 ana_state != SPDK_NVME_ANA_NON_OPTIMIZED_STATE)) { 3952 SPDK_DEBUGLOG(nvmf, "Fail I/O command due to ANA state %d\n", 3953 ana_state); 3954 response->status.sct = SPDK_NVME_SCT_PATH; 3955 response->status.sc = _nvme_ana_state_to_path_status(ana_state); 3956 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3957 } 3958 3959 if (spdk_likely(ctrlr->listener != NULL)) { 3960 SPDK_DTRACE_PROBE3(nvmf_request_io_exec_path, req, 3961 ctrlr->listener->trid->traddr, 3962 ctrlr->listener->trid->trsvcid); 3963 } 3964 3965 /* scan-build falsely reporting dereference of null pointer */ 3966 assert(group != NULL && group->sgroups != NULL); 3967 ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[nsid - 1]; 3968 if (nvmf_ns_reservation_request_check(ns_info, ctrlr, req)) { 3969 SPDK_DEBUGLOG(nvmf, "Reservation Conflict for nsid %u, opcode %u\n", 3970 cmd->nsid, cmd->opc); 3971 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 3972 } 3973 3974 bdev = ns->bdev; 3975 desc = ns->desc; 3976 ch = ns_info->channel; 3977 3978 if (spdk_unlikely(cmd->fuse & SPDK_NVME_CMD_FUSE_MASK)) { 3979 return nvmf_ctrlr_process_io_fused_cmd(req, bdev, desc, ch); 3980 } else if (spdk_unlikely(req->qpair->first_fused_req != NULL)) { 3981 struct spdk_nvme_cpl *fused_response = &req->qpair->first_fused_req->rsp->nvme_cpl; 3982 3983 SPDK_ERRLOG("Expected second of fused commands - failing first of fused commands\n"); 3984 3985 /* abort req->qpair->first_fused_request and continue with new command */ 3986 fused_response->status.sc = SPDK_NVME_SC_ABORTED_MISSING_FUSED; 3987 fused_response->status.sct = SPDK_NVME_SCT_GENERIC; 3988 _nvmf_request_complete(req->qpair->first_fused_req); 3989 req->qpair->first_fused_req = NULL; 3990 } 3991 3992 if (spdk_nvmf_request_using_zcopy(req)) { 3993 assert(req->zcopy_phase == NVMF_ZCOPY_PHASE_INIT); 3994 return nvmf_bdev_ctrlr_zcopy_start(bdev, desc, ch, req); 3995 } else { 3996 switch (cmd->opc) { 3997 case SPDK_NVME_OPC_READ: 3998 return nvmf_bdev_ctrlr_read_cmd(bdev, desc, ch, req); 3999 case SPDK_NVME_OPC_WRITE: 4000 return nvmf_bdev_ctrlr_write_cmd(bdev, desc, ch, req); 4001 case SPDK_NVME_OPC_COMPARE: 4002 return nvmf_bdev_ctrlr_compare_cmd(bdev, desc, ch, req); 4003 case SPDK_NVME_OPC_WRITE_ZEROES: 4004 return nvmf_bdev_ctrlr_write_zeroes_cmd(bdev, desc, ch, req); 4005 case SPDK_NVME_OPC_FLUSH: 4006 return nvmf_bdev_ctrlr_flush_cmd(bdev, desc, ch, req); 4007 case SPDK_NVME_OPC_DATASET_MANAGEMENT: 4008 return nvmf_bdev_ctrlr_dsm_cmd(bdev, desc, ch, req); 4009 case SPDK_NVME_OPC_RESERVATION_REGISTER: 4010 case SPDK_NVME_OPC_RESERVATION_ACQUIRE: 4011 case SPDK_NVME_OPC_RESERVATION_RELEASE: 4012 case SPDK_NVME_OPC_RESERVATION_REPORT: 4013 spdk_thread_send_msg(ctrlr->subsys->thread, nvmf_ns_reservation_request, req); 4014 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 4015 default: 4016 return nvmf_bdev_ctrlr_nvme_passthru_io(bdev, desc, ch, req); 4017 } 4018 } 4019 } 4020 4021 static void 4022 nvmf_qpair_request_cleanup(struct spdk_nvmf_qpair *qpair) 4023 { 4024 if (qpair->state == SPDK_NVMF_QPAIR_DEACTIVATING) { 4025 assert(qpair->state_cb != NULL); 4026 4027 if (TAILQ_EMPTY(&qpair->outstanding)) { 4028 qpair->state_cb(qpair->state_cb_arg, 0); 4029 } 4030 } 4031 } 4032 4033 int 4034 spdk_nvmf_request_free(struct spdk_nvmf_request *req) 4035 { 4036 struct spdk_nvmf_qpair *qpair = req->qpair; 4037 4038 TAILQ_REMOVE(&qpair->outstanding, req, link); 4039 if (nvmf_transport_req_free(req)) { 4040 SPDK_ERRLOG("Unable to free transport level request resources.\n"); 4041 } 4042 4043 nvmf_qpair_request_cleanup(qpair); 4044 4045 return 0; 4046 } 4047 4048 static void 4049 _nvmf_request_complete(void *ctx) 4050 { 4051 struct spdk_nvmf_request *req = ctx; 4052 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 4053 struct spdk_nvmf_qpair *qpair; 4054 struct spdk_nvmf_subsystem_poll_group *sgroup = NULL; 4055 struct spdk_nvmf_subsystem_pg_ns_info *ns_info; 4056 bool is_aer = false; 4057 uint32_t nsid; 4058 bool paused; 4059 uint8_t opcode; 4060 4061 rsp->sqid = 0; 4062 rsp->status.p = 0; 4063 rsp->cid = req->cmd->nvme_cmd.cid; 4064 nsid = req->cmd->nvme_cmd.nsid; 4065 opcode = req->cmd->nvmf_cmd.opcode; 4066 4067 qpair = req->qpair; 4068 if (qpair->ctrlr) { 4069 sgroup = &qpair->group->sgroups[qpair->ctrlr->subsys->id]; 4070 assert(sgroup != NULL); 4071 is_aer = req->cmd->nvme_cmd.opc == SPDK_NVME_OPC_ASYNC_EVENT_REQUEST; 4072 4073 /* 4074 * Set the crd value. 4075 * If the the IO has any error, and dnr (DoNotRetry) is not 1, 4076 * and ACRE is enabled, we will set the crd to 1 to select the first CRDT. 4077 */ 4078 if (spdk_nvme_cpl_is_error(rsp) && 4079 rsp->status.dnr == 0 && 4080 qpair->ctrlr->acre_enabled) { 4081 rsp->status.crd = 1; 4082 } 4083 } else if (spdk_unlikely(nvmf_request_is_fabric_connect(req))) { 4084 sgroup = nvmf_subsystem_pg_from_connect_cmd(req); 4085 } 4086 4087 if (SPDK_DEBUGLOG_FLAG_ENABLED("nvmf")) { 4088 spdk_nvme_print_completion(qpair->qid, rsp); 4089 } 4090 4091 switch (req->zcopy_phase) { 4092 case NVMF_ZCOPY_PHASE_NONE: 4093 TAILQ_REMOVE(&qpair->outstanding, req, link); 4094 break; 4095 case NVMF_ZCOPY_PHASE_INIT: 4096 if (spdk_unlikely(spdk_nvme_cpl_is_error(rsp))) { 4097 req->zcopy_phase = NVMF_ZCOPY_PHASE_INIT_FAILED; 4098 TAILQ_REMOVE(&qpair->outstanding, req, link); 4099 } else { 4100 req->zcopy_phase = NVMF_ZCOPY_PHASE_EXECUTE; 4101 } 4102 break; 4103 case NVMF_ZCOPY_PHASE_EXECUTE: 4104 break; 4105 case NVMF_ZCOPY_PHASE_END_PENDING: 4106 TAILQ_REMOVE(&qpair->outstanding, req, link); 4107 req->zcopy_phase = NVMF_ZCOPY_PHASE_COMPLETE; 4108 break; 4109 default: 4110 SPDK_ERRLOG("Invalid ZCOPY phase %u\n", req->zcopy_phase); 4111 break; 4112 } 4113 4114 if (nvmf_transport_req_complete(req)) { 4115 SPDK_ERRLOG("Transport request completion error!\n"); 4116 } 4117 4118 /* AER cmd is an exception */ 4119 if (sgroup && !is_aer) { 4120 if (spdk_unlikely(opcode == SPDK_NVME_OPC_FABRIC || 4121 nvmf_qpair_is_admin_queue(qpair))) { 4122 assert(sgroup->mgmt_io_outstanding > 0); 4123 sgroup->mgmt_io_outstanding--; 4124 } else { 4125 if (req->zcopy_phase == NVMF_ZCOPY_PHASE_NONE || 4126 req->zcopy_phase == NVMF_ZCOPY_PHASE_COMPLETE || 4127 req->zcopy_phase == NVMF_ZCOPY_PHASE_INIT_FAILED) { 4128 /* End of request */ 4129 4130 /* NOTE: This implicitly also checks for 0, since 0 - 1 wraps around to UINT32_MAX. */ 4131 if (spdk_likely(nsid - 1 < sgroup->num_ns)) { 4132 sgroup->ns_info[nsid - 1].io_outstanding--; 4133 } 4134 } 4135 } 4136 4137 if (spdk_unlikely(sgroup->state == SPDK_NVMF_SUBSYSTEM_PAUSING && 4138 sgroup->mgmt_io_outstanding == 0)) { 4139 paused = true; 4140 for (nsid = 0; nsid < sgroup->num_ns; nsid++) { 4141 ns_info = &sgroup->ns_info[nsid]; 4142 4143 if (ns_info->state == SPDK_NVMF_SUBSYSTEM_PAUSING && 4144 ns_info->io_outstanding > 0) { 4145 paused = false; 4146 break; 4147 } 4148 } 4149 4150 if (paused) { 4151 sgroup->state = SPDK_NVMF_SUBSYSTEM_PAUSED; 4152 sgroup->cb_fn(sgroup->cb_arg, 0); 4153 sgroup->cb_fn = NULL; 4154 sgroup->cb_arg = NULL; 4155 } 4156 } 4157 4158 } 4159 4160 nvmf_qpair_request_cleanup(qpair); 4161 } 4162 4163 int 4164 spdk_nvmf_request_complete(struct spdk_nvmf_request *req) 4165 { 4166 struct spdk_nvmf_qpair *qpair = req->qpair; 4167 4168 spdk_thread_exec_msg(qpair->group->thread, _nvmf_request_complete, req); 4169 4170 return 0; 4171 } 4172 4173 void 4174 spdk_nvmf_request_exec_fabrics(struct spdk_nvmf_request *req) 4175 { 4176 struct spdk_nvmf_qpair *qpair = req->qpair; 4177 struct spdk_nvmf_subsystem_poll_group *sgroup = NULL; 4178 enum spdk_nvmf_request_exec_status status; 4179 4180 if (qpair->ctrlr) { 4181 sgroup = &qpair->group->sgroups[qpair->ctrlr->subsys->id]; 4182 } else if (spdk_unlikely(nvmf_request_is_fabric_connect(req))) { 4183 sgroup = nvmf_subsystem_pg_from_connect_cmd(req); 4184 } 4185 4186 assert(sgroup != NULL); 4187 sgroup->mgmt_io_outstanding++; 4188 4189 /* Place the request on the outstanding list so we can keep track of it */ 4190 TAILQ_INSERT_TAIL(&qpair->outstanding, req, link); 4191 4192 assert(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC); 4193 status = nvmf_ctrlr_process_fabrics_cmd(req); 4194 4195 if (status == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) { 4196 _nvmf_request_complete(req); 4197 } 4198 } 4199 4200 static bool nvmf_check_subsystem_active(struct spdk_nvmf_request *req) 4201 { 4202 struct spdk_nvmf_qpair *qpair = req->qpair; 4203 struct spdk_nvmf_subsystem_poll_group *sgroup = NULL; 4204 struct spdk_nvmf_subsystem_pg_ns_info *ns_info; 4205 uint32_t nsid; 4206 4207 if (qpair->ctrlr) { 4208 sgroup = &qpair->group->sgroups[qpair->ctrlr->subsys->id]; 4209 assert(sgroup != NULL); 4210 } else if (spdk_unlikely(nvmf_request_is_fabric_connect(req))) { 4211 sgroup = nvmf_subsystem_pg_from_connect_cmd(req); 4212 } 4213 4214 /* Check if the subsystem is paused (if there is a subsystem) */ 4215 if (sgroup != NULL) { 4216 if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC || 4217 nvmf_qpair_is_admin_queue(qpair))) { 4218 if (sgroup->state != SPDK_NVMF_SUBSYSTEM_ACTIVE) { 4219 /* The subsystem is not currently active. Queue this request. */ 4220 TAILQ_INSERT_TAIL(&sgroup->queued, req, link); 4221 return false; 4222 } 4223 sgroup->mgmt_io_outstanding++; 4224 } else { 4225 nsid = req->cmd->nvme_cmd.nsid; 4226 4227 /* NOTE: This implicitly also checks for 0, since 0 - 1 wraps around to UINT32_MAX. */ 4228 if (spdk_unlikely(nsid - 1 >= sgroup->num_ns)) { 4229 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 4230 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT; 4231 req->rsp->nvme_cpl.status.dnr = 1; 4232 TAILQ_INSERT_TAIL(&qpair->outstanding, req, link); 4233 _nvmf_request_complete(req); 4234 return false; 4235 } 4236 4237 ns_info = &sgroup->ns_info[nsid - 1]; 4238 if (ns_info->channel == NULL) { 4239 /* This can can happen if host sends I/O to a namespace that is 4240 * in the process of being added, but before the full addition 4241 * process is complete. Report invalid namespace in that case. 4242 */ 4243 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 4244 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT; 4245 req->rsp->nvme_cpl.status.dnr = 1; 4246 TAILQ_INSERT_TAIL(&qpair->outstanding, req, link); 4247 ns_info->io_outstanding++; 4248 _nvmf_request_complete(req); 4249 return false; 4250 } 4251 4252 if (ns_info->state != SPDK_NVMF_SUBSYSTEM_ACTIVE) { 4253 /* The namespace is not currently active. Queue this request. */ 4254 TAILQ_INSERT_TAIL(&sgroup->queued, req, link); 4255 return false; 4256 } 4257 4258 ns_info->io_outstanding++; 4259 } 4260 4261 if (qpair->state != SPDK_NVMF_QPAIR_ACTIVE) { 4262 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 4263 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_COMMAND_SEQUENCE_ERROR; 4264 TAILQ_INSERT_TAIL(&qpair->outstanding, req, link); 4265 _nvmf_request_complete(req); 4266 return false; 4267 } 4268 } 4269 4270 return true; 4271 } 4272 4273 void 4274 spdk_nvmf_request_exec(struct spdk_nvmf_request *req) 4275 { 4276 struct spdk_nvmf_qpair *qpair = req->qpair; 4277 struct spdk_nvmf_transport *transport = qpair->transport; 4278 enum spdk_nvmf_request_exec_status status; 4279 4280 if (!nvmf_check_subsystem_active(req)) { 4281 return; 4282 } 4283 4284 if (SPDK_DEBUGLOG_FLAG_ENABLED("nvmf")) { 4285 spdk_nvme_print_command(qpair->qid, &req->cmd->nvme_cmd); 4286 } 4287 4288 /* Place the request on the outstanding list so we can keep track of it */ 4289 TAILQ_INSERT_TAIL(&qpair->outstanding, req, link); 4290 4291 if (spdk_unlikely((req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC) && 4292 spdk_nvme_trtype_is_fabrics(transport->ops->type))) { 4293 status = nvmf_ctrlr_process_fabrics_cmd(req); 4294 } else if (spdk_unlikely(nvmf_qpair_is_admin_queue(qpair))) { 4295 status = nvmf_ctrlr_process_admin_cmd(req); 4296 } else { 4297 status = nvmf_ctrlr_process_io_cmd(req); 4298 } 4299 4300 if (status == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) { 4301 _nvmf_request_complete(req); 4302 } 4303 } 4304 4305 static bool 4306 nvmf_ctrlr_get_dif_ctx(struct spdk_nvmf_ctrlr *ctrlr, struct spdk_nvme_cmd *cmd, 4307 struct spdk_dif_ctx *dif_ctx) 4308 { 4309 struct spdk_nvmf_ns *ns; 4310 struct spdk_bdev *bdev; 4311 4312 if (ctrlr == NULL || cmd == NULL) { 4313 return false; 4314 } 4315 4316 ns = _nvmf_subsystem_get_ns(ctrlr->subsys, cmd->nsid); 4317 if (ns == NULL || ns->bdev == NULL) { 4318 return false; 4319 } 4320 4321 bdev = ns->bdev; 4322 4323 switch (cmd->opc) { 4324 case SPDK_NVME_OPC_READ: 4325 case SPDK_NVME_OPC_WRITE: 4326 case SPDK_NVME_OPC_COMPARE: 4327 return nvmf_bdev_ctrlr_get_dif_ctx(bdev, cmd, dif_ctx); 4328 default: 4329 break; 4330 } 4331 4332 return false; 4333 } 4334 4335 bool 4336 spdk_nvmf_request_get_dif_ctx(struct spdk_nvmf_request *req, struct spdk_dif_ctx *dif_ctx) 4337 { 4338 struct spdk_nvmf_qpair *qpair = req->qpair; 4339 struct spdk_nvmf_ctrlr *ctrlr = qpair->ctrlr; 4340 4341 if (spdk_likely(ctrlr == NULL || !ctrlr->dif_insert_or_strip)) { 4342 return false; 4343 } 4344 4345 if (spdk_unlikely(qpair->state != SPDK_NVMF_QPAIR_ACTIVE)) { 4346 return false; 4347 } 4348 4349 if (spdk_unlikely(req->cmd->nvmf_cmd.opcode == SPDK_NVME_OPC_FABRIC)) { 4350 return false; 4351 } 4352 4353 if (spdk_unlikely(nvmf_qpair_is_admin_queue(qpair))) { 4354 return false; 4355 } 4356 4357 return nvmf_ctrlr_get_dif_ctx(ctrlr, &req->cmd->nvme_cmd, dif_ctx); 4358 } 4359 4360 void 4361 spdk_nvmf_set_custom_admin_cmd_hdlr(uint8_t opc, spdk_nvmf_custom_cmd_hdlr hdlr) 4362 { 4363 g_nvmf_custom_admin_cmd_hdlrs[opc].hdlr = hdlr; 4364 } 4365 4366 static int 4367 nvmf_passthru_admin_cmd(struct spdk_nvmf_request *req) 4368 { 4369 struct spdk_bdev *bdev; 4370 struct spdk_bdev_desc *desc; 4371 struct spdk_io_channel *ch; 4372 struct spdk_nvme_cmd *cmd = spdk_nvmf_request_get_cmd(req); 4373 struct spdk_nvme_cpl *response = spdk_nvmf_request_get_response(req); 4374 uint32_t bdev_nsid; 4375 int rc; 4376 4377 if (g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].nsid == 0) { 4378 bdev_nsid = cmd->nsid; 4379 } else { 4380 bdev_nsid = g_nvmf_custom_admin_cmd_hdlrs[cmd->opc].nsid; 4381 } 4382 4383 rc = spdk_nvmf_request_get_bdev(bdev_nsid, req, &bdev, &desc, &ch); 4384 if (rc) { 4385 response->status.sct = SPDK_NVME_SCT_GENERIC; 4386 response->status.sc = SPDK_NVME_SC_INVALID_NAMESPACE_OR_FORMAT; 4387 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 4388 } 4389 return spdk_nvmf_bdev_ctrlr_nvme_passthru_admin(bdev, desc, ch, req, NULL); 4390 } 4391 4392 void 4393 spdk_nvmf_set_passthru_admin_cmd(uint8_t opc, uint32_t forward_nsid) 4394 { 4395 g_nvmf_custom_admin_cmd_hdlrs[opc].hdlr = nvmf_passthru_admin_cmd; 4396 g_nvmf_custom_admin_cmd_hdlrs[opc].nsid = forward_nsid; 4397 } 4398 4399 int 4400 spdk_nvmf_request_get_bdev(uint32_t nsid, struct spdk_nvmf_request *req, 4401 struct spdk_bdev **bdev, struct spdk_bdev_desc **desc, struct spdk_io_channel **ch) 4402 { 4403 struct spdk_nvmf_ctrlr *ctrlr = req->qpair->ctrlr; 4404 struct spdk_nvmf_ns *ns; 4405 struct spdk_nvmf_poll_group *group = req->qpair->group; 4406 struct spdk_nvmf_subsystem_pg_ns_info *ns_info; 4407 4408 *bdev = NULL; 4409 *desc = NULL; 4410 *ch = NULL; 4411 4412 ns = _nvmf_subsystem_get_ns(ctrlr->subsys, nsid); 4413 if (ns == NULL || ns->bdev == NULL) { 4414 return -EINVAL; 4415 } 4416 4417 assert(group != NULL && group->sgroups != NULL); 4418 ns_info = &group->sgroups[ctrlr->subsys->id].ns_info[nsid - 1]; 4419 *bdev = ns->bdev; 4420 *desc = ns->desc; 4421 *ch = ns_info->channel; 4422 4423 return 0; 4424 } 4425 4426 struct spdk_nvmf_ctrlr *spdk_nvmf_request_get_ctrlr(struct spdk_nvmf_request *req) 4427 { 4428 return req->qpair->ctrlr; 4429 } 4430 4431 struct spdk_nvme_cmd *spdk_nvmf_request_get_cmd(struct spdk_nvmf_request *req) 4432 { 4433 return &req->cmd->nvme_cmd; 4434 } 4435 4436 struct spdk_nvme_cpl *spdk_nvmf_request_get_response(struct spdk_nvmf_request *req) 4437 { 4438 return &req->rsp->nvme_cpl; 4439 } 4440 4441 struct spdk_nvmf_subsystem *spdk_nvmf_request_get_subsystem(struct spdk_nvmf_request *req) 4442 { 4443 return req->qpair->ctrlr->subsys; 4444 } 4445 4446 void spdk_nvmf_request_get_data(struct spdk_nvmf_request *req, void **data, uint32_t *length) 4447 { 4448 *data = req->data; 4449 *length = req->length; 4450 } 4451 4452 struct spdk_nvmf_subsystem *spdk_nvmf_ctrlr_get_subsystem(struct spdk_nvmf_ctrlr *ctrlr) 4453 { 4454 return ctrlr->subsys; 4455 } 4456 4457 uint16_t spdk_nvmf_ctrlr_get_id(struct spdk_nvmf_ctrlr *ctrlr) 4458 { 4459 return ctrlr->cntlid; 4460 } 4461 4462 struct spdk_nvmf_request *spdk_nvmf_request_get_req_to_abort(struct spdk_nvmf_request *req) 4463 { 4464 return req->req_to_abort; 4465 } 4466