1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. All rights reserved. 5 * Copyright (c) 2019 Mellanox Technologies LTD. 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 bool dif_insert_or_strip) 108 { 109 struct spdk_bdev *bdev = ns->bdev; 110 uint64_t num_blocks; 111 112 num_blocks = spdk_bdev_get_num_blocks(bdev); 113 114 nsdata->nsze = num_blocks; 115 nsdata->ncap = num_blocks; 116 nsdata->nuse = num_blocks; 117 nsdata->nlbaf = 0; 118 nsdata->flbas.format = 0; 119 if (!dif_insert_or_strip) { 120 nsdata->lbaf[0].ms = spdk_bdev_get_md_size(bdev); 121 nsdata->lbaf[0].lbads = spdk_u32log2(spdk_bdev_get_block_size(bdev)); 122 if (nsdata->lbaf[0].ms != 0) { 123 nsdata->flbas.extended = 1; 124 nsdata->mc.extended = 1; 125 nsdata->mc.pointer = 0; 126 nsdata->dps.md_start = spdk_bdev_is_dif_head_of_md(bdev); 127 128 switch (spdk_bdev_get_dif_type(bdev)) { 129 case SPDK_DIF_TYPE1: 130 nsdata->dpc.pit1 = 1; 131 nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_TYPE1; 132 break; 133 case SPDK_DIF_TYPE2: 134 nsdata->dpc.pit2 = 1; 135 nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_TYPE2; 136 break; 137 case SPDK_DIF_TYPE3: 138 nsdata->dpc.pit3 = 1; 139 nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_TYPE3; 140 break; 141 default: 142 SPDK_DEBUGLOG(SPDK_LOG_NVMF, "Protection Disabled\n"); 143 nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_DISABLE; 144 break; 145 } 146 } 147 } else { 148 nsdata->lbaf[0].ms = 0; 149 nsdata->lbaf[0].lbads = spdk_u32log2(spdk_bdev_get_data_block_size(bdev)); 150 } 151 nsdata->noiob = spdk_bdev_get_optimal_io_boundary(bdev); 152 nsdata->nmic.can_share = 1; 153 if (ns->ptpl_file != NULL) { 154 nsdata->nsrescap.rescap.persist = 1; 155 } 156 nsdata->nsrescap.rescap.write_exclusive = 1; 157 nsdata->nsrescap.rescap.exclusive_access = 1; 158 nsdata->nsrescap.rescap.write_exclusive_reg_only = 1; 159 nsdata->nsrescap.rescap.exclusive_access_reg_only = 1; 160 nsdata->nsrescap.rescap.write_exclusive_all_reg = 1; 161 nsdata->nsrescap.rescap.exclusive_access_all_reg = 1; 162 nsdata->nsrescap.rescap.ignore_existing_key = 1; 163 164 SPDK_STATIC_ASSERT(sizeof(nsdata->nguid) == sizeof(ns->opts.nguid), "size mismatch"); 165 memcpy(nsdata->nguid, ns->opts.nguid, sizeof(nsdata->nguid)); 166 167 SPDK_STATIC_ASSERT(sizeof(nsdata->eui64) == sizeof(ns->opts.eui64), "size mismatch"); 168 memcpy(&nsdata->eui64, ns->opts.eui64, sizeof(nsdata->eui64)); 169 } 170 171 static void 172 nvmf_bdev_ctrlr_get_rw_params(const struct spdk_nvme_cmd *cmd, uint64_t *start_lba, 173 uint64_t *num_blocks) 174 { 175 /* SLBA: CDW10 and CDW11 */ 176 *start_lba = from_le64(&cmd->cdw10); 177 178 /* NLB: CDW12 bits 15:00, 0's based */ 179 *num_blocks = (from_le32(&cmd->cdw12) & 0xFFFFu) + 1; 180 } 181 182 static bool 183 nvmf_bdev_ctrlr_lba_in_range(uint64_t bdev_num_blocks, uint64_t io_start_lba, 184 uint64_t io_num_blocks) 185 { 186 if (io_start_lba + io_num_blocks > bdev_num_blocks || 187 io_start_lba + io_num_blocks < io_start_lba) { 188 return false; 189 } 190 191 return true; 192 } 193 194 static void 195 spdk_nvmf_ctrlr_process_io_cmd_resubmit(void *arg) 196 { 197 struct spdk_nvmf_request *req = arg; 198 199 spdk_nvmf_ctrlr_process_io_cmd(req); 200 } 201 202 static void 203 nvmf_bdev_ctrl_queue_io(struct spdk_nvmf_request *req, struct spdk_bdev *bdev, 204 struct spdk_io_channel *ch, spdk_bdev_io_wait_cb cb_fn, void *cb_arg) 205 { 206 int rc; 207 208 req->bdev_io_wait.bdev = bdev; 209 req->bdev_io_wait.cb_fn = cb_fn; 210 req->bdev_io_wait.cb_arg = cb_arg; 211 212 rc = spdk_bdev_queue_io_wait(bdev, ch, &req->bdev_io_wait); 213 if (rc != 0) { 214 assert(false); 215 } 216 req->qpair->group->stat.pending_bdev_io++; 217 } 218 219 int 220 spdk_nvmf_bdev_ctrlr_read_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 221 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 222 { 223 uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev); 224 uint32_t block_size = spdk_bdev_get_block_size(bdev); 225 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 226 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 227 uint64_t start_lba; 228 uint64_t num_blocks; 229 int rc; 230 231 nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks); 232 233 if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) { 234 SPDK_ERRLOG("end of media\n"); 235 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 236 rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE; 237 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 238 } 239 240 if (spdk_unlikely(num_blocks * block_size > req->length)) { 241 SPDK_ERRLOG("Read NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n", 242 num_blocks, block_size, req->length); 243 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 244 rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID; 245 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 246 } 247 248 rc = spdk_bdev_readv_blocks(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks, 249 nvmf_bdev_ctrlr_complete_cmd, req); 250 if (spdk_unlikely(rc)) { 251 if (rc == -ENOMEM) { 252 nvmf_bdev_ctrl_queue_io(req, bdev, ch, spdk_nvmf_ctrlr_process_io_cmd_resubmit, req); 253 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 254 } 255 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 256 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 257 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 258 } 259 260 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 261 } 262 263 int 264 spdk_nvmf_bdev_ctrlr_write_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 265 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 266 { 267 uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev); 268 uint32_t block_size = spdk_bdev_get_block_size(bdev); 269 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 270 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 271 uint64_t start_lba; 272 uint64_t num_blocks; 273 int rc; 274 275 nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks); 276 277 if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) { 278 SPDK_ERRLOG("end of media\n"); 279 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 280 rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE; 281 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 282 } 283 284 if (spdk_unlikely(num_blocks * block_size > req->length)) { 285 SPDK_ERRLOG("Write NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n", 286 num_blocks, block_size, req->length); 287 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 288 rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID; 289 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 290 } 291 292 rc = spdk_bdev_writev_blocks(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks, 293 nvmf_bdev_ctrlr_complete_cmd, req); 294 if (spdk_unlikely(rc)) { 295 if (rc == -ENOMEM) { 296 nvmf_bdev_ctrl_queue_io(req, bdev, ch, spdk_nvmf_ctrlr_process_io_cmd_resubmit, req); 297 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 298 } 299 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 300 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 301 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 302 } 303 304 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 305 } 306 307 int 308 spdk_nvmf_bdev_ctrlr_write_zeroes_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 309 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 310 { 311 uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev); 312 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 313 struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl; 314 uint64_t start_lba; 315 uint64_t num_blocks; 316 int rc; 317 318 nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks); 319 320 if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) { 321 SPDK_ERRLOG("end of media\n"); 322 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 323 rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE; 324 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 325 } 326 327 rc = spdk_bdev_write_zeroes_blocks(desc, ch, start_lba, num_blocks, 328 nvmf_bdev_ctrlr_complete_cmd, req); 329 if (spdk_unlikely(rc)) { 330 if (rc == -ENOMEM) { 331 nvmf_bdev_ctrl_queue_io(req, bdev, ch, spdk_nvmf_ctrlr_process_io_cmd_resubmit, req); 332 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 333 } 334 rsp->status.sct = SPDK_NVME_SCT_GENERIC; 335 rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 336 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 337 } 338 339 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 340 } 341 342 int 343 spdk_nvmf_bdev_ctrlr_flush_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 344 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 345 { 346 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 347 int rc; 348 349 /* As for NVMeoF controller, SPDK always set volatile write 350 * cache bit to 1, return success for those block devices 351 * which can't support FLUSH command. 352 */ 353 if (!spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_FLUSH)) { 354 response->status.sct = SPDK_NVME_SCT_GENERIC; 355 response->status.sc = SPDK_NVME_SC_SUCCESS; 356 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 357 } 358 359 rc = spdk_bdev_flush_blocks(desc, ch, 0, spdk_bdev_get_num_blocks(bdev), 360 nvmf_bdev_ctrlr_complete_cmd, req); 361 if (spdk_unlikely(rc)) { 362 if (rc == -ENOMEM) { 363 nvmf_bdev_ctrl_queue_io(req, bdev, ch, spdk_nvmf_ctrlr_process_io_cmd_resubmit, req); 364 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 365 } 366 response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 367 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 368 } 369 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 370 } 371 372 struct nvmf_bdev_ctrlr_unmap { 373 struct spdk_nvmf_request *req; 374 uint32_t count; 375 struct spdk_bdev_desc *desc; 376 struct spdk_bdev *bdev; 377 struct spdk_io_channel *ch; 378 uint32_t range_index; 379 }; 380 381 static void 382 nvmf_bdev_ctrlr_unmap_cpl(struct spdk_bdev_io *bdev_io, bool success, 383 void *cb_arg) 384 { 385 struct nvmf_bdev_ctrlr_unmap *unmap_ctx = cb_arg; 386 struct spdk_nvmf_request *req = unmap_ctx->req; 387 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 388 int sc, sct; 389 390 unmap_ctx->count--; 391 392 if (response->status.sct == SPDK_NVME_SCT_GENERIC && 393 response->status.sc == SPDK_NVME_SC_SUCCESS) { 394 spdk_bdev_io_get_nvme_status(bdev_io, &sct, &sc); 395 response->status.sc = sc; 396 response->status.sct = sct; 397 } 398 399 if (unmap_ctx->count == 0) { 400 spdk_nvmf_request_complete(req); 401 free(unmap_ctx); 402 } 403 spdk_bdev_free_io(bdev_io); 404 } 405 406 static int 407 nvmf_bdev_ctrlr_unmap(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 408 struct spdk_io_channel *ch, struct spdk_nvmf_request *req, 409 struct nvmf_bdev_ctrlr_unmap *unmap_ctx); 410 static void 411 nvmf_bdev_ctrlr_unmap_resubmit(void *arg) 412 { 413 struct nvmf_bdev_ctrlr_unmap *unmap_ctx = arg; 414 struct spdk_nvmf_request *req = unmap_ctx->req; 415 struct spdk_bdev_desc *desc = unmap_ctx->desc; 416 struct spdk_bdev *bdev = unmap_ctx->bdev; 417 struct spdk_io_channel *ch = unmap_ctx->ch; 418 419 nvmf_bdev_ctrlr_unmap(bdev, desc, ch, req, unmap_ctx); 420 } 421 422 static int 423 nvmf_bdev_ctrlr_unmap(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 424 struct spdk_io_channel *ch, struct spdk_nvmf_request *req, 425 struct nvmf_bdev_ctrlr_unmap *unmap_ctx) 426 { 427 uint16_t nr, i; 428 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 429 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 430 struct spdk_nvme_dsm_range *dsm_range; 431 uint64_t lba; 432 uint32_t lba_count; 433 int rc; 434 435 nr = ((cmd->cdw10 & 0x000000ff) + 1); 436 if (nr * sizeof(struct spdk_nvme_dsm_range) > req->length) { 437 SPDK_ERRLOG("Dataset Management number of ranges > SGL length\n"); 438 response->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID; 439 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 440 } 441 442 if (unmap_ctx == NULL) { 443 unmap_ctx = calloc(1, sizeof(*unmap_ctx)); 444 if (!unmap_ctx) { 445 response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 446 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 447 } 448 449 unmap_ctx->req = req; 450 unmap_ctx->desc = desc; 451 unmap_ctx->ch = ch; 452 unmap_ctx->bdev = bdev; 453 454 response->status.sct = SPDK_NVME_SCT_GENERIC; 455 response->status.sc = SPDK_NVME_SC_SUCCESS; 456 } else { 457 unmap_ctx->count--; /* dequeued */ 458 } 459 460 dsm_range = (struct spdk_nvme_dsm_range *)req->data; 461 for (i = unmap_ctx->range_index; i < nr; i++) { 462 lba = dsm_range[i].starting_lba; 463 lba_count = dsm_range[i].length; 464 465 unmap_ctx->count++; 466 467 rc = spdk_bdev_unmap_blocks(desc, ch, lba, lba_count, 468 nvmf_bdev_ctrlr_unmap_cpl, unmap_ctx); 469 if (rc) { 470 if (rc == -ENOMEM) { 471 nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_bdev_ctrlr_unmap_resubmit, unmap_ctx); 472 /* Unmap was not yet submitted to bdev */ 473 /* unmap_ctx->count will be decremented when the request is dequeued */ 474 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 475 } 476 response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR; 477 unmap_ctx->count--; 478 /* We can't return here - we may have to wait for any other 479 * unmaps already sent to complete */ 480 break; 481 } 482 unmap_ctx->range_index++; 483 } 484 485 if (unmap_ctx->count == 0) { 486 free(unmap_ctx); 487 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 488 } 489 490 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 491 } 492 493 int 494 spdk_nvmf_bdev_ctrlr_dsm_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 495 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 496 { 497 uint32_t attribute; 498 struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd; 499 struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl; 500 501 attribute = cmd->cdw11 & 0x00000007; 502 if (attribute & SPDK_NVME_DSM_ATTR_DEALLOCATE) { 503 return nvmf_bdev_ctrlr_unmap(bdev, desc, ch, req, NULL); 504 } 505 506 response->status.sct = SPDK_NVME_SCT_GENERIC; 507 response->status.sc = SPDK_NVME_SC_SUCCESS; 508 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 509 } 510 511 int 512 spdk_nvmf_bdev_ctrlr_nvme_passthru_io(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc, 513 struct spdk_io_channel *ch, struct spdk_nvmf_request *req) 514 { 515 int rc; 516 517 rc = spdk_bdev_nvme_io_passthru(desc, ch, &req->cmd->nvme_cmd, req->data, req->length, 518 nvmf_bdev_ctrlr_complete_cmd, req); 519 if (spdk_unlikely(rc)) { 520 if (rc == -ENOMEM) { 521 nvmf_bdev_ctrl_queue_io(req, bdev, ch, spdk_nvmf_ctrlr_process_io_cmd_resubmit, req); 522 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 523 } 524 req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC; 525 req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE; 526 return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE; 527 } 528 529 return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS; 530 } 531 532 bool 533 spdk_nvmf_bdev_ctrlr_get_dif_ctx(struct spdk_bdev *bdev, struct spdk_nvme_cmd *cmd, 534 struct spdk_dif_ctx *dif_ctx) 535 { 536 uint32_t init_ref_tag, dif_check_flags = 0; 537 int rc; 538 539 if (spdk_bdev_get_md_size(bdev) == 0) { 540 return false; 541 } 542 543 /* Initial Reference Tag is the lower 32 bits of the start LBA. */ 544 init_ref_tag = (uint32_t)from_le64(&cmd->cdw10); 545 546 if (spdk_bdev_is_dif_check_enabled(bdev, SPDK_DIF_CHECK_TYPE_REFTAG)) { 547 dif_check_flags |= SPDK_DIF_FLAGS_REFTAG_CHECK; 548 } 549 550 if (spdk_bdev_is_dif_check_enabled(bdev, SPDK_DIF_CHECK_TYPE_GUARD)) { 551 dif_check_flags |= SPDK_DIF_FLAGS_GUARD_CHECK; 552 } 553 554 rc = spdk_dif_ctx_init(dif_ctx, 555 spdk_bdev_get_block_size(bdev), 556 spdk_bdev_get_md_size(bdev), 557 spdk_bdev_is_md_interleaved(bdev), 558 spdk_bdev_is_dif_head_of_md(bdev), 559 spdk_bdev_get_dif_type(bdev), 560 dif_check_flags, 561 init_ref_tag, 0, 0, 0, 0); 562 563 return (rc == 0) ? true : false; 564 } 565