1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include "spdk/stdinc.h" 35 36 #include "nvmf_internal.h" 37 38 #include "spdk/bdev.h" 39 #include "spdk/endian.h" 40 #include "spdk/thread.h" 41 #include "spdk/likely.h" 42 #include "spdk/nvme.h" 43 #include "spdk/nvmf_spec.h" 44 #include "spdk/trace.h" 45 #include "spdk/scsi_spec.h" 46 #include "spdk/string.h" 47 #include "spdk/util.h" 48 49 #include "spdk_internal/log.h" 50 51 static bool 52 spdk_nvmf_subsystem_bdev_io_type_supported(struct spdk_nvmf_subsystem *subsystem, 53 enum spdk_bdev_io_type io_type) 54 { 55 struct spdk_nvmf_ns *ns; 56 57 for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL; 58 ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) { 59 if (ns->bdev == NULL) { 60 continue; 61 } 62 63 if (!spdk_bdev_io_type_supported(ns->bdev, io_type)) { 64 SPDK_DEBUGLOG(SPDK_LOG_NVMF, 65 "Subsystem %s namespace %u (%s) does not support io_type %d\n", 66 spdk_nvmf_subsystem_get_nqn(subsystem), 67 ns->opts.nsid, spdk_bdev_get_name(ns->bdev), (int)io_type); 68 return false; 69 } 70 } 71 72 SPDK_DEBUGLOG(SPDK_LOG_NVMF, "All devices in Subsystem %s support io_type %d\n", 73 spdk_nvmf_subsystem_get_nqn(subsystem), (int)io_type); 74 return true; 75 } 76 77 bool 78 spdk_nvmf_ctrlr_dsm_supported(struct spdk_nvmf_ctrlr *ctrlr) 79 { 80 return spdk_nvmf_subsystem_bdev_io_type_supported(ctrlr->subsys, SPDK_BDEV_IO_TYPE_UNMAP); 81 } 82 83 bool 84 spdk_nvmf_ctrlr_write_zeroes_supported(struct spdk_nvmf_ctrlr *ctrlr) 85 { 86 return spdk_nvmf_subsystem_bdev_io_type_supported(ctrlr->subsys, SPDK_BDEV_IO_TYPE_WRITE_ZEROES); 87 } 88 89 static void 90 nvmf_bdev_ctrlr_complete_cmd(struct spdk_bdev_io *bdev_io, bool success, 91 void *cb_arg) 92 { 93 struct spdk_nvmf_request *req = cb_arg; 94 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 95 int sc, sct; 96 97 spdk_bdev_io_get_nvme_status(bdev_io, &sct, &sc); 98 response->status.sc = sc; 99 response->status.sct = sct; 100 101 spdk_nvmf_request_complete(req); 102 spdk_bdev_free_io(bdev_io); 103 } 104 105 void 106 spdk_nvmf_bdev_ctrlr_identify_ns(struct spdk_nvmf_ns *ns, struct spdk_nvme_ns_data *nsdata) 107 { 108 struct spdk_bdev *bdev = ns->bdev; 109 uint64_t num_blocks; 110 111 num_blocks = spdk_bdev_get_num_blocks(bdev); 112 113 nsdata->nsze = num_blocks; 114 nsdata->ncap = num_blocks; 115 nsdata->nuse = num_blocks; 116 nsdata->nlbaf = 0; 117 nsdata->flbas.format = 0; 118 nsdata->lbaf[0].ms = spdk_bdev_get_md_size(bdev); 119 nsdata->lbaf[0].lbads = spdk_u32log2(spdk_bdev_get_block_size(bdev)); 120 if (nsdata->lbaf[0].ms != 0) { 121 nsdata->flbas.extended = 1; 122 nsdata->mc.extended = 1; 123 nsdata->mc.pointer = 0; 124 nsdata->dps.md_start = spdk_bdev_is_dif_head_of_md(bdev); 125 126 switch (spdk_bdev_get_dif_type(bdev)) { 127 case SPDK_DIF_TYPE1: 128 nsdata->dpc.pit1 = 1; 129 nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_TYPE1; 130 break; 131 case SPDK_DIF_TYPE2: 132 nsdata->dpc.pit2 = 1; 133 nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_TYPE2; 134 break; 135 case SPDK_DIF_TYPE3: 136 nsdata->dpc.pit3 = 1; 137 nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_TYPE3; 138 break; 139 default: 140 SPDK_ERRLOG("Unknown DIF type: %d\n", spdk_bdev_get_dif_type(bdev)); 141 assert(false); 142 break; 143 } 144 } 145 nsdata->noiob = spdk_bdev_get_optimal_io_boundary(bdev); 146 nsdata->nmic.can_share = 1; 147 148 SPDK_STATIC_ASSERT(sizeof(nsdata->nguid) == sizeof(ns->opts.nguid), "size mismatch"); 149 memcpy(nsdata->nguid, ns->opts.nguid, sizeof(nsdata->nguid)); 150 151 SPDK_STATIC_ASSERT(sizeof(nsdata->eui64) == sizeof(ns->opts.eui64), "size mismatch"); 152 memcpy(&nsdata->eui64, ns->opts.eui64, sizeof(nsdata->eui64)); 153 } 154 155 static void 156 nvmf_bdev_ctrlr_get_rw_params(const struct spdk_nvme_cmd *cmd, uint64_t *start_lba, 157 uint64_t *num_blocks) 158 { 159 /* SLBA: CDW10 and CDW11 */ 160 *start_lba = from_le64(&cmd->cdw10); 161 162 /* NLB: CDW12 bits 15:00, 0's based */ 163 *num_blocks = (from_le32(&cmd->cdw12) & 0xFFFFu) + 1; 164 } 165 166 static bool 167 nvmf_bdev_ctrlr_lba_in_range(uint64_t bdev_num_blocks, uint64_t io_start_lba, 168 uint64_t io_num_blocks) 169 { 170 if (io_start_lba + io_num_blocks > bdev_num_blocks || 171 io_start_lba + io_num_blocks < io_start_lba) { 172 return false; 173 } 174 175 return true; 176 } 177 178 static void 179 spdk_nvmf_ctrlr_process_io_cmd_resubmit(void *arg) 180 { 181 struct spdk_nvmf_request *req = arg; 182 183 spdk_nvmf_ctrlr_process_io_cmd(req); 184 } 185 186 static void 187 nvmf_bdev_ctrl_queue_io(struct spdk_nvmf_request *req, struct spdk_bdev *bdev, 188 struct spdk_io_channel *ch, spdk_bdev_io_wait_cb cb_fn, void *cb_arg) 189 { 190 int rc; 191 192 req->bdev_io_wait.bdev = bdev; 193 req->bdev_io_wait.cb_fn = cb_fn; 194 req->bdev_io_wait.cb_arg = cb_arg; 195 196 rc = spdk_bdev_queue_io_wait(bdev, ch, &req->bdev_io_wait); 197 if (rc != 0) { 198 assert(false); 199 } 200 } 201 202 int 203 spdk_nvmf_bdev_ctrlr_read_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 204 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 205 { 206 uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev); 207 uint32_t block_size = spdk_bdev_get_block_size(bdev); 208 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 209 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 210 uint64_t start_lba; 211 uint64_t num_blocks; 212 int rc; 213 214 nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks); 215 216 if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) { 217 SPDK_ERRLOG("end of media\n"); 218 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 219 rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE; 220 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 221 } 222 223 if (spdk_unlikely(num_blocks * block_size > req->length)) { 224 SPDK_ERRLOG("Read NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n", 225 num_blocks, block_size, req->length); 226 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 227 rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID; 228 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 229 } 230 231 rc = spdk_bdev_readv_blocks(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks, 232 nvmf_bdev_ctrlr_complete_cmd, req); 233 if (spdk_unlikely(rc)) { 234 if (rc == -ENOMEM) { 235 nvmf_bdev_ctrl_queue_io(req, bdev, ch, spdk_nvmf_ctrlr_process_io_cmd_resubmit, req); 236 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 237 } 238 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 239 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 240 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 241 } 242 243 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 244 } 245 246 int 247 spdk_nvmf_bdev_ctrlr_write_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 248 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 249 { 250 uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev); 251 uint32_t block_size = spdk_bdev_get_block_size(bdev); 252 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 253 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 254 uint64_t start_lba; 255 uint64_t num_blocks; 256 int rc; 257 258 nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks); 259 260 if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) { 261 SPDK_ERRLOG("end of media\n"); 262 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 263 rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE; 264 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 265 } 266 267 if (spdk_unlikely(num_blocks * block_size > req->length)) { 268 SPDK_ERRLOG("Write NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n", 269 num_blocks, block_size, req->length); 270 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 271 rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID; 272 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 273 } 274 275 rc = spdk_bdev_writev_blocks(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks, 276 nvmf_bdev_ctrlr_complete_cmd, req); 277 if (spdk_unlikely(rc)) { 278 if (rc == -ENOMEM) { 279 nvmf_bdev_ctrl_queue_io(req, bdev, ch, spdk_nvmf_ctrlr_process_io_cmd_resubmit, req); 280 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 281 } 282 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 283 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 284 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 285 } 286 287 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 288 } 289 290 int 291 spdk_nvmf_bdev_ctrlr_write_zeroes_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 292 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 293 { 294 uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev); 295 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 296 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 297 uint64_t start_lba; 298 uint64_t num_blocks; 299 int rc; 300 301 nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks); 302 303 if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) { 304 SPDK_ERRLOG("end of media\n"); 305 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 306 rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE; 307 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 308 } 309 310 rc = spdk_bdev_write_zeroes_blocks(desc, ch, start_lba, num_blocks, 311 nvmf_bdev_ctrlr_complete_cmd, req); 312 if (spdk_unlikely(rc)) { 313 if (rc == -ENOMEM) { 314 nvmf_bdev_ctrl_queue_io(req, bdev, ch, spdk_nvmf_ctrlr_process_io_cmd_resubmit, req); 315 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 316 } 317 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 318 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 319 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 320 } 321 322 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 323 } 324 325 int 326 spdk_nvmf_bdev_ctrlr_flush_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 327 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 328 { 329 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 330 int rc; 331 332 /* As for NVMeoF controller, SPDK always set volatile write 333 * cache bit to 1, return success for those block devices 334 * which can't support FLUSH command. 335 */ 336 if (!spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_FLUSH)) { 337 response->status.sct = SPDK_NVME_SCT_GENERIC; 338 response->status.sc = SPDK_NVME_SC_SUCCESS; 339 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 340 } 341 342 rc = spdk_bdev_flush_blocks(desc, ch, 0, spdk_bdev_get_num_blocks(bdev), 343 nvmf_bdev_ctrlr_complete_cmd, req); 344 if (spdk_unlikely(rc)) { 345 if (rc == -ENOMEM) { 346 nvmf_bdev_ctrl_queue_io(req, bdev, ch, spdk_nvmf_ctrlr_process_io_cmd_resubmit, req); 347 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 348 } 349 response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 350 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 351 } 352 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 353 } 354 355 struct nvmf_bdev_ctrlr_unmap { 356 struct spdk_nvmf_request *req; 357 uint32_t count; 358 struct spdk_bdev_desc *desc; 359 struct spdk_bdev *bdev; 360 struct spdk_io_channel *ch; 361 }; 362 363 static void 364 nvmf_bdev_ctrlr_unmap_cpl(struct spdk_bdev_io *bdev_io, bool success, 365 void *cb_arg) 366 { 367 struct nvmf_bdev_ctrlr_unmap *unmap_ctx = cb_arg; 368 struct spdk_nvmf_request *req = unmap_ctx->req; 369 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 370 int sc, sct; 371 372 unmap_ctx->count--; 373 374 if (response->status.sct == SPDK_NVME_SCT_GENERIC && 375 response->status.sc == SPDK_NVME_SC_SUCCESS) { 376 spdk_bdev_io_get_nvme_status(bdev_io, &sct, &sc); 377 response->status.sc = sc; 378 response->status.sct = sct; 379 } 380 381 if (unmap_ctx->count == 0) { 382 spdk_nvmf_request_complete(req); 383 free(unmap_ctx); 384 } 385 spdk_bdev_free_io(bdev_io); 386 } 387 388 static int 389 nvmf_bdev_ctrlr_unmap(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 390 struct spdk_io_channel *ch, struct spdk_nvmf_request *req, 391 struct nvmf_bdev_ctrlr_unmap *unmap_ctx); 392 static void 393 nvmf_bdev_ctrlr_unmap_resubmit(void *arg) 394 { 395 struct nvmf_bdev_ctrlr_unmap *unmap_ctx = arg; 396 struct spdk_nvmf_request *req = unmap_ctx->req; 397 struct spdk_bdev_desc *desc = unmap_ctx->desc; 398 struct spdk_bdev *bdev = unmap_ctx->bdev; 399 struct spdk_io_channel *ch = unmap_ctx->ch; 400 401 nvmf_bdev_ctrlr_unmap(bdev, desc, ch, req, unmap_ctx); 402 } 403 404 static int 405 nvmf_bdev_ctrlr_unmap(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 406 struct spdk_io_channel *ch, struct spdk_nvmf_request *req, 407 struct nvmf_bdev_ctrlr_unmap *unmap_ctx) 408 { 409 uint16_t nr, i; 410 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 411 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 412 struct spdk_nvme_dsm_range *dsm_range; 413 uint64_t lba; 414 uint32_t lba_count; 415 int rc; 416 417 nr = ((cmd->cdw10 & 0x000000ff) + 1); 418 if (nr * sizeof(struct spdk_nvme_dsm_range) > req->length) { 419 SPDK_ERRLOG("Dataset Management number of ranges > SGL length\n"); 420 response->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID; 421 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 422 } 423 424 if (unmap_ctx == NULL) { 425 unmap_ctx = calloc(1, sizeof(*unmap_ctx)); 426 if (!unmap_ctx) { 427 response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 428 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 429 } 430 431 unmap_ctx->req = req; 432 unmap_ctx->desc = desc; 433 unmap_ctx->ch = ch; 434 } 435 436 response->status.sct = SPDK_NVME_SCT_GENERIC; 437 response->status.sc = SPDK_NVME_SC_SUCCESS; 438 439 dsm_range = (struct spdk_nvme_dsm_range *)req->data; 440 for (i = unmap_ctx->count; i < nr; i++) { 441 lba = dsm_range[i].starting_lba; 442 lba_count = dsm_range[i].length; 443 444 unmap_ctx->count++; 445 446 rc = spdk_bdev_unmap_blocks(desc, ch, lba, lba_count, 447 nvmf_bdev_ctrlr_unmap_cpl, unmap_ctx); 448 if (rc) { 449 if (rc == -ENOMEM) { 450 nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_bdev_ctrlr_unmap_resubmit, unmap_ctx); 451 /* Unmap was not yet submitted to bdev */ 452 unmap_ctx->count--; 453 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 454 } 455 response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 456 unmap_ctx->count--; 457 /* We can't return here - we may have to wait for any other 458 * unmaps already sent to complete */ 459 break; 460 } 461 } 462 463 if (unmap_ctx->count == 0) { 464 free(unmap_ctx); 465 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 466 } 467 468 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 469 } 470 471 int 472 spdk_nvmf_bdev_ctrlr_dsm_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 473 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 474 { 475 uint32_t attribute; 476 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 477 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 478 479 attribute = cmd->cdw11 & 0x00000007; 480 if (attribute & SPDK_NVME_DSM_ATTR_DEALLOCATE) { 481 return nvmf_bdev_ctrlr_unmap(bdev, desc, ch, req, NULL); 482 } 483 484 response->status.sct = SPDK_NVME_SCT_GENERIC; 485 response->status.sc = SPDK_NVME_SC_SUCCESS; 486 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 487 } 488 489 int 490 spdk_nvmf_bdev_ctrlr_nvme_passthru_io(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 491 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 492 { 493 int rc; 494 495 rc = spdk_bdev_nvme_io_passthru(desc, ch, &req->cmd->nvme_cmd, req->data, req->length, 496 nvmf_bdev_ctrlr_complete_cmd, req); 497 if (spdk_unlikely(rc)) { 498 if (rc == -ENOMEM) { 499 nvmf_bdev_ctrl_queue_io(req, bdev, ch, spdk_nvmf_ctrlr_process_io_cmd_resubmit, req); 500 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 501 } 502 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 503 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE; 504 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 505 } 506 507 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 508 } 509