Line data Source code
1 : /* SPDX-License-Identifier: BSD-3-Clause
2 : * Copyright (C) 2017 Intel Corporation. All rights reserved.
3 : * Copyright (c) 2019 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 :
11 : #include "spdk/bdev.h"
12 : #include "spdk/endian.h"
13 : #include "spdk/thread.h"
14 : #include "spdk/likely.h"
15 : #include "spdk/nvme.h"
16 : #include "spdk/nvmf_cmd.h"
17 : #include "spdk/nvmf_spec.h"
18 : #include "spdk/trace.h"
19 : #include "spdk/scsi_spec.h"
20 : #include "spdk/string.h"
21 : #include "spdk/util.h"
22 :
23 : #include "spdk/log.h"
24 :
25 : static bool
26 0 : nvmf_subsystem_bdev_io_type_supported(struct spdk_nvmf_subsystem *subsystem,
27 : enum spdk_bdev_io_type io_type)
28 : {
29 : struct spdk_nvmf_ns *ns;
30 :
31 0 : for (ns = spdk_nvmf_subsystem_get_first_ns(subsystem); ns != NULL;
32 0 : ns = spdk_nvmf_subsystem_get_next_ns(subsystem, ns)) {
33 0 : if (ns->bdev == NULL) {
34 0 : continue;
35 : }
36 :
37 0 : if (!spdk_bdev_io_type_supported(ns->bdev, io_type)) {
38 0 : SPDK_DEBUGLOG(nvmf,
39 : "Subsystem %s namespace %u (%s) does not support io_type %d\n",
40 : spdk_nvmf_subsystem_get_nqn(subsystem),
41 : ns->opts.nsid, spdk_bdev_get_name(ns->bdev), (int)io_type);
42 0 : return false;
43 : }
44 : }
45 :
46 0 : SPDK_DEBUGLOG(nvmf, "All devices in Subsystem %s support io_type %d\n",
47 : spdk_nvmf_subsystem_get_nqn(subsystem), (int)io_type);
48 0 : return true;
49 : }
50 :
51 : bool
52 0 : nvmf_ctrlr_dsm_supported(struct spdk_nvmf_ctrlr *ctrlr)
53 : {
54 0 : return nvmf_subsystem_bdev_io_type_supported(ctrlr->subsys, SPDK_BDEV_IO_TYPE_UNMAP);
55 : }
56 :
57 : bool
58 0 : nvmf_ctrlr_write_zeroes_supported(struct spdk_nvmf_ctrlr *ctrlr)
59 : {
60 0 : return nvmf_subsystem_bdev_io_type_supported(ctrlr->subsys, SPDK_BDEV_IO_TYPE_WRITE_ZEROES);
61 : }
62 :
63 : bool
64 0 : nvmf_ctrlr_copy_supported(struct spdk_nvmf_ctrlr *ctrlr)
65 : {
66 0 : return nvmf_subsystem_bdev_io_type_supported(ctrlr->subsys, SPDK_BDEV_IO_TYPE_COPY);
67 : }
68 :
69 : static void
70 4 : nvmf_bdev_ctrlr_complete_cmd(struct spdk_bdev_io *bdev_io, bool success,
71 : void *cb_arg)
72 : {
73 4 : struct spdk_nvmf_request *req = cb_arg;
74 4 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
75 4 : int sc = 0, sct = 0;
76 4 : uint32_t cdw0 = 0;
77 :
78 4 : if (spdk_unlikely(req->first_fused)) {
79 0 : struct spdk_nvmf_request *first_req = req->first_fused_req;
80 0 : struct spdk_nvme_cpl *first_response = &first_req->rsp->nvme_cpl;
81 0 : int first_sc = 0, first_sct = 0;
82 :
83 : /* get status for both operations */
84 0 : spdk_bdev_io_get_nvme_fused_status(bdev_io, &cdw0, &first_sct, &first_sc, &sct, &sc);
85 0 : first_response->cdw0 = cdw0;
86 0 : first_response->status.sc = first_sc;
87 0 : first_response->status.sct = first_sct;
88 :
89 : /* first request should be completed */
90 0 : spdk_nvmf_request_complete(first_req);
91 0 : req->first_fused_req = NULL;
92 0 : req->first_fused = false;
93 : } else {
94 4 : spdk_bdev_io_get_nvme_status(bdev_io, &cdw0, &sct, &sc);
95 : }
96 :
97 4 : response->cdw0 = cdw0;
98 4 : response->status.sc = sc;
99 4 : response->status.sct = sct;
100 :
101 4 : spdk_nvmf_request_complete(req);
102 4 : spdk_bdev_free_io(bdev_io);
103 4 : }
104 :
105 : static void
106 2 : nvmf_bdev_ctrlr_complete_admin_cmd(struct spdk_bdev_io *bdev_io, bool success,
107 : void *cb_arg)
108 : {
109 2 : struct spdk_nvmf_request *req = cb_arg;
110 :
111 2 : if (req->cmd_cb_fn) {
112 0 : req->cmd_cb_fn(req);
113 : }
114 :
115 2 : nvmf_bdev_ctrlr_complete_cmd(bdev_io, success, req);
116 2 : }
117 :
118 : void
119 2 : nvmf_bdev_ctrlr_identify_ns(struct spdk_nvmf_ns *ns, struct spdk_nvme_ns_data *nsdata,
120 : bool dif_insert_or_strip)
121 : {
122 2 : struct spdk_bdev *bdev = ns->bdev;
123 2 : struct spdk_bdev_desc *desc = ns->desc;
124 : uint64_t num_blocks;
125 : uint32_t phys_blocklen;
126 : uint32_t max_copy;
127 :
128 2 : num_blocks = spdk_bdev_get_num_blocks(bdev);
129 :
130 2 : nsdata->nsze = num_blocks;
131 2 : nsdata->ncap = num_blocks;
132 2 : nsdata->nuse = num_blocks;
133 2 : nsdata->nlbaf = 0;
134 2 : nsdata->flbas.format = 0;
135 2 : nsdata->flbas.msb_format = 0;
136 2 : nsdata->nacwu = spdk_bdev_get_acwu(bdev) - 1; /* nacwu is 0-based */
137 2 : if (!dif_insert_or_strip) {
138 1 : nsdata->lbaf[0].ms = spdk_bdev_desc_get_md_size(desc);
139 1 : nsdata->lbaf[0].lbads = spdk_u32log2(spdk_bdev_desc_get_block_size(desc));
140 1 : if (nsdata->lbaf[0].ms != 0) {
141 1 : nsdata->flbas.extended = 1;
142 1 : nsdata->mc.extended = 1;
143 1 : nsdata->mc.pointer = 0;
144 1 : nsdata->dps.md_start = spdk_bdev_desc_is_dif_head_of_md(desc);
145 :
146 1 : switch (spdk_bdev_get_dif_type(bdev)) {
147 1 : case SPDK_DIF_TYPE1:
148 1 : nsdata->dpc.pit1 = 1;
149 1 : nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_TYPE1;
150 1 : break;
151 0 : case SPDK_DIF_TYPE2:
152 0 : nsdata->dpc.pit2 = 1;
153 0 : nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_TYPE2;
154 0 : break;
155 0 : case SPDK_DIF_TYPE3:
156 0 : nsdata->dpc.pit3 = 1;
157 0 : nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_TYPE3;
158 0 : break;
159 0 : default:
160 0 : SPDK_DEBUGLOG(nvmf, "Protection Disabled\n");
161 0 : nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_DISABLE;
162 0 : break;
163 : }
164 : }
165 : } else {
166 1 : nsdata->lbaf[0].ms = 0;
167 1 : nsdata->lbaf[0].lbads = spdk_u32log2(spdk_bdev_get_data_block_size(bdev));
168 : }
169 :
170 2 : phys_blocklen = spdk_bdev_get_physical_block_size(bdev);
171 2 : assert(phys_blocklen > 0);
172 : /* Linux driver uses min(nawupf, npwg) to set physical_block_size */
173 2 : nsdata->nsfeat.optperf = 1;
174 2 : nsdata->nsfeat.ns_atomic_write_unit = 1;
175 2 : nsdata->npwg = (phys_blocklen >> nsdata->lbaf[0].lbads) - 1;
176 2 : nsdata->nawupf = nsdata->npwg;
177 2 : nsdata->npwa = nsdata->npwg;
178 2 : nsdata->npdg = nsdata->npwg;
179 2 : nsdata->npda = nsdata->npwg;
180 :
181 2 : if (spdk_bdev_get_write_unit_size(bdev) == 1) {
182 2 : nsdata->noiob = spdk_bdev_get_optimal_io_boundary(bdev);
183 : }
184 2 : nsdata->nmic.can_share = 1;
185 2 : if (nvmf_ns_is_ptpl_capable(ns)) {
186 2 : nsdata->nsrescap.rescap.persist = 1;
187 : }
188 2 : nsdata->nsrescap.rescap.write_exclusive = 1;
189 2 : nsdata->nsrescap.rescap.exclusive_access = 1;
190 2 : nsdata->nsrescap.rescap.write_exclusive_reg_only = 1;
191 2 : nsdata->nsrescap.rescap.exclusive_access_reg_only = 1;
192 2 : nsdata->nsrescap.rescap.write_exclusive_all_reg = 1;
193 2 : nsdata->nsrescap.rescap.exclusive_access_all_reg = 1;
194 2 : nsdata->nsrescap.rescap.ignore_existing_key = 1;
195 :
196 : SPDK_STATIC_ASSERT(sizeof(nsdata->nguid) == sizeof(ns->opts.nguid), "size mismatch");
197 2 : memcpy(nsdata->nguid, ns->opts.nguid, sizeof(nsdata->nguid));
198 :
199 : SPDK_STATIC_ASSERT(sizeof(nsdata->eui64) == sizeof(ns->opts.eui64), "size mismatch");
200 2 : memcpy(&nsdata->eui64, ns->opts.eui64, sizeof(nsdata->eui64));
201 :
202 : /* For now we support just one source range for copy command */
203 2 : nsdata->msrc = 0;
204 :
205 2 : max_copy = spdk_bdev_get_max_copy(bdev);
206 2 : if (max_copy == 0 || max_copy > UINT16_MAX) {
207 : /* Zero means copy size is unlimited */
208 2 : nsdata->mcl = UINT16_MAX;
209 2 : nsdata->mssrl = UINT16_MAX;
210 : } else {
211 0 : nsdata->mcl = max_copy;
212 0 : nsdata->mssrl = max_copy;
213 : }
214 2 : }
215 :
216 : void
217 0 : nvmf_bdev_ctrlr_identify_iocs_nvm(struct spdk_nvmf_ns *ns,
218 : struct spdk_nvme_nvm_ns_data *nsdata_nvm)
219 : {
220 0 : struct spdk_bdev_desc *desc = ns->desc;
221 : uint8_t _16bpists;
222 : uint32_t sts, pif;
223 :
224 0 : if (spdk_bdev_desc_get_dif_type(desc) == SPDK_DIF_DISABLE) {
225 0 : return;
226 : }
227 :
228 0 : pif = spdk_bdev_desc_get_dif_pi_format(desc);
229 :
230 : /*
231 : * 16BPISTS shall be 1 for 32/64b Guard PI.
232 : * STCRS shall be 1 if 16BPISTS is 1.
233 : * 16 is the minimum value of STS for 32b Guard PI.
234 : */
235 0 : switch (pif) {
236 0 : case SPDK_DIF_PI_FORMAT_16:
237 0 : _16bpists = 0;
238 0 : sts = 0;
239 0 : break;
240 0 : case SPDK_DIF_PI_FORMAT_32:
241 0 : _16bpists = 1;
242 0 : sts = 16;
243 0 : break;
244 0 : case SPDK_DIF_PI_FORMAT_64:
245 0 : _16bpists = 1;
246 0 : sts = 0;
247 0 : break;
248 0 : default:
249 0 : SPDK_WARNLOG("PI format %u is not supported\n", pif);
250 0 : return;
251 : }
252 :
253 : /* For 16b Guard PI, Storage Tag is not available because we set STS to 0.
254 : * In this case, we do not have to set 16BPISTM to 1. For simplicity,
255 : * set 16BPISTM to 0 and set LBSTM to all zeroes.
256 : *
257 : * We will revisit here when we find any OS uses Storage Tag.
258 : */
259 0 : nsdata_nvm->lbstm = 0;
260 0 : nsdata_nvm->pic._16bpistm = 0;
261 :
262 0 : nsdata_nvm->pic._16bpists = _16bpists;
263 0 : nsdata_nvm->pic.stcrs = 0;
264 0 : nsdata_nvm->elbaf[0].sts = sts;
265 0 : nsdata_nvm->elbaf[0].pif = pif;
266 : }
267 :
268 : static void
269 22 : nvmf_bdev_ctrlr_get_rw_params(const struct spdk_nvme_cmd *cmd, uint64_t *start_lba,
270 : uint64_t *num_blocks)
271 : {
272 : /* SLBA: CDW10 and CDW11 */
273 22 : *start_lba = from_le64(&cmd->cdw10);
274 :
275 : /* NLB: CDW12 bits 15:00, 0's based */
276 22 : *num_blocks = (from_le32(&cmd->cdw12) & 0xFFFFu) + 1;
277 22 : }
278 :
279 : static void
280 3 : nvmf_bdev_ctrlr_get_rw_ext_params(const struct spdk_nvme_cmd *cmd,
281 : struct spdk_bdev_ext_io_opts *opts)
282 : {
283 : /* Get CDW12 values */
284 3 : opts->nvme_cdw12.raw = from_le32(&cmd->cdw12);
285 :
286 : /* Get CDW13 values */
287 3 : opts->nvme_cdw13.raw = from_le32(&cmd->cdw13);
288 :
289 : /* Bdev layer checks PRACT in CDW12 because it is NVMe specific, but
290 : * it does not check DIF check flags in CDW because DIF is not NVMe
291 : * specific. Hence, copy DIF check flags from CDW12 to dif_check_flags_exclude_mask.
292 : */
293 3 : opts->dif_check_flags_exclude_mask = (~opts->nvme_cdw12.raw) & SPDK_NVME_IO_FLAGS_PRCHK_MASK;
294 3 : }
295 :
296 : static bool
297 27 : nvmf_bdev_ctrlr_lba_in_range(uint64_t bdev_num_blocks, uint64_t io_start_lba,
298 : uint64_t io_num_blocks)
299 : {
300 27 : if (io_start_lba + io_num_blocks > bdev_num_blocks ||
301 19 : io_start_lba + io_num_blocks < io_start_lba) {
302 10 : return false;
303 : }
304 :
305 17 : return true;
306 : }
307 :
308 : static void
309 0 : nvmf_ctrlr_process_io_cmd_resubmit(void *arg)
310 : {
311 0 : struct spdk_nvmf_request *req = arg;
312 : int rc;
313 :
314 0 : rc = nvmf_ctrlr_process_io_cmd(req);
315 0 : if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
316 0 : spdk_nvmf_request_complete(req);
317 : }
318 0 : }
319 :
320 : static void
321 0 : nvmf_ctrlr_process_admin_cmd_resubmit(void *arg)
322 : {
323 0 : struct spdk_nvmf_request *req = arg;
324 : int rc;
325 :
326 0 : rc = nvmf_ctrlr_process_admin_cmd(req);
327 0 : if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
328 0 : spdk_nvmf_request_complete(req);
329 : }
330 0 : }
331 :
332 : static void
333 2 : nvmf_bdev_ctrl_queue_io(struct spdk_nvmf_request *req, struct spdk_bdev *bdev,
334 : struct spdk_io_channel *ch, spdk_bdev_io_wait_cb cb_fn, void *cb_arg)
335 : {
336 : int rc;
337 :
338 2 : req->bdev_io_wait.bdev = bdev;
339 2 : req->bdev_io_wait.cb_fn = cb_fn;
340 2 : req->bdev_io_wait.cb_arg = cb_arg;
341 :
342 2 : rc = spdk_bdev_queue_io_wait(bdev, ch, &req->bdev_io_wait);
343 2 : if (rc != 0) {
344 0 : assert(false);
345 : }
346 2 : req->qpair->group->stat.pending_bdev_io++;
347 2 : }
348 :
349 : bool
350 0 : nvmf_bdev_zcopy_enabled(struct spdk_bdev *bdev)
351 : {
352 0 : return spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_ZCOPY);
353 : }
354 :
355 : int
356 1 : nvmf_bdev_ctrlr_read_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
357 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
358 : {
359 4 : struct spdk_bdev_ext_io_opts opts = {
360 : .size = SPDK_SIZEOF(&opts, accel_sequence),
361 1 : .memory_domain = req->memory_domain,
362 1 : .memory_domain_ctx = req->memory_domain_ctx,
363 1 : .accel_sequence = req->accel_sequence,
364 : };
365 1 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
366 1 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
367 1 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
368 1 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
369 : uint64_t start_lba;
370 : uint64_t num_blocks;
371 : int rc;
372 :
373 1 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
374 1 : nvmf_bdev_ctrlr_get_rw_ext_params(cmd, &opts);
375 :
376 1 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
377 0 : SPDK_ERRLOG("end of media\n");
378 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
379 0 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
380 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
381 : }
382 :
383 1 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
384 0 : SPDK_ERRLOG("Read NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
385 : num_blocks, block_size, req->length);
386 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
387 0 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
388 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
389 : }
390 :
391 1 : assert(!spdk_nvmf_request_using_zcopy(req));
392 :
393 1 : rc = spdk_bdev_readv_blocks_ext(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks,
394 : nvmf_bdev_ctrlr_complete_cmd, req, &opts);
395 1 : if (spdk_unlikely(rc)) {
396 0 : if (rc == -ENOMEM) {
397 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
398 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
399 : }
400 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
401 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
402 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
403 : }
404 :
405 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
406 : }
407 :
408 : int
409 1 : nvmf_bdev_ctrlr_write_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
410 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
411 : {
412 4 : struct spdk_bdev_ext_io_opts opts = {
413 : .size = SPDK_SIZEOF(&opts, nvme_cdw13),
414 1 : .memory_domain = req->memory_domain,
415 1 : .memory_domain_ctx = req->memory_domain_ctx,
416 1 : .accel_sequence = req->accel_sequence,
417 : };
418 1 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
419 1 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
420 1 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
421 1 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
422 : uint64_t start_lba;
423 : uint64_t num_blocks;
424 : int rc;
425 :
426 1 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
427 1 : nvmf_bdev_ctrlr_get_rw_ext_params(cmd, &opts);
428 :
429 1 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
430 0 : SPDK_ERRLOG("end of media\n");
431 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
432 0 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
433 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
434 : }
435 :
436 1 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
437 0 : SPDK_ERRLOG("Write NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
438 : num_blocks, block_size, req->length);
439 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
440 0 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
441 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
442 : }
443 :
444 1 : assert(!spdk_nvmf_request_using_zcopy(req));
445 :
446 1 : rc = spdk_bdev_writev_blocks_ext(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks,
447 : nvmf_bdev_ctrlr_complete_cmd, req, &opts);
448 1 : if (spdk_unlikely(rc)) {
449 0 : if (rc == -ENOMEM) {
450 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
451 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
452 : }
453 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
454 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
455 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
456 : }
457 :
458 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
459 : }
460 :
461 : int
462 4 : nvmf_bdev_ctrlr_compare_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
463 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
464 : {
465 4 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
466 4 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
467 4 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
468 4 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
469 : uint64_t start_lba;
470 : uint64_t num_blocks;
471 : int rc;
472 :
473 4 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
474 :
475 4 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
476 1 : SPDK_ERRLOG("end of media\n");
477 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
478 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
479 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
480 : }
481 :
482 3 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
483 1 : SPDK_ERRLOG("Compare NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
484 : num_blocks, block_size, req->length);
485 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
486 1 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
487 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
488 : }
489 :
490 2 : rc = spdk_bdev_comparev_blocks(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks,
491 : nvmf_bdev_ctrlr_complete_cmd, req);
492 2 : if (spdk_unlikely(rc)) {
493 1 : if (rc == -ENOMEM) {
494 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
495 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
496 : }
497 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
498 1 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
499 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
500 : }
501 :
502 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
503 : }
504 :
505 : int
506 4 : nvmf_bdev_ctrlr_compare_and_write_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
507 : struct spdk_io_channel *ch, struct spdk_nvmf_request *cmp_req, struct spdk_nvmf_request *write_req)
508 : {
509 4 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
510 4 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
511 4 : struct spdk_nvme_cmd *cmp_cmd = &cmp_req->cmd->nvme_cmd;
512 4 : struct spdk_nvme_cmd *write_cmd = &write_req->cmd->nvme_cmd;
513 4 : struct spdk_nvme_cpl *rsp = &write_req->rsp->nvme_cpl;
514 : uint64_t write_start_lba, cmp_start_lba;
515 : uint64_t write_num_blocks, cmp_num_blocks;
516 : int rc;
517 :
518 4 : nvmf_bdev_ctrlr_get_rw_params(cmp_cmd, &cmp_start_lba, &cmp_num_blocks);
519 4 : nvmf_bdev_ctrlr_get_rw_params(write_cmd, &write_start_lba, &write_num_blocks);
520 :
521 4 : if (spdk_unlikely(write_start_lba != cmp_start_lba || write_num_blocks != cmp_num_blocks)) {
522 1 : SPDK_ERRLOG("Fused command start lba / num blocks mismatch\n");
523 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
524 1 : rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
525 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
526 : }
527 :
528 3 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, write_start_lba,
529 : write_num_blocks))) {
530 1 : SPDK_ERRLOG("end of media\n");
531 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
532 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
533 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
534 : }
535 :
536 2 : if (spdk_unlikely(write_num_blocks * block_size > write_req->length)) {
537 1 : SPDK_ERRLOG("Write NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
538 : write_num_blocks, block_size, write_req->length);
539 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
540 1 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
541 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
542 : }
543 :
544 1 : rc = spdk_bdev_comparev_and_writev_blocks(desc, ch, cmp_req->iov, cmp_req->iovcnt, write_req->iov,
545 1 : write_req->iovcnt, write_start_lba, write_num_blocks, nvmf_bdev_ctrlr_complete_cmd, write_req);
546 1 : if (spdk_unlikely(rc)) {
547 0 : if (rc == -ENOMEM) {
548 0 : nvmf_bdev_ctrl_queue_io(cmp_req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, cmp_req);
549 0 : nvmf_bdev_ctrl_queue_io(write_req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, write_req);
550 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
551 : }
552 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
553 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
554 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
555 : }
556 :
557 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
558 : }
559 :
560 : int
561 4 : nvmf_bdev_ctrlr_write_zeroes_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
562 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
563 : {
564 4 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
565 4 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
566 4 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
567 4 : uint64_t max_write_zeroes_size = req->qpair->ctrlr->subsys->max_write_zeroes_size_kib;
568 : uint64_t start_lba;
569 : uint64_t num_blocks;
570 : int rc;
571 :
572 4 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
573 4 : if (spdk_unlikely(max_write_zeroes_size > 0 &&
574 : num_blocks > (max_write_zeroes_size << 10) / spdk_bdev_desc_get_block_size(desc))) {
575 1 : SPDK_ERRLOG("invalid write zeroes size, should not exceed %" PRIu64 "Kib\n", max_write_zeroes_size);
576 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
577 1 : rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
578 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
579 : }
580 :
581 3 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
582 1 : SPDK_ERRLOG("end of media\n");
583 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
584 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
585 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
586 : }
587 :
588 2 : if (spdk_unlikely(cmd->cdw12_bits.write_zeroes.deac)) {
589 0 : SPDK_ERRLOG("Write Zeroes Deallocate is not supported\n");
590 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
591 0 : rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
592 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
593 : }
594 :
595 2 : rc = spdk_bdev_write_zeroes_blocks(desc, ch, start_lba, num_blocks,
596 : nvmf_bdev_ctrlr_complete_cmd, req);
597 2 : if (spdk_unlikely(rc)) {
598 1 : if (rc == -ENOMEM) {
599 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
600 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
601 : }
602 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
603 1 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
604 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
605 : }
606 :
607 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
608 : }
609 :
610 : int
611 3 : nvmf_bdev_ctrlr_flush_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
612 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
613 : {
614 3 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
615 : int rc;
616 :
617 : /* As for NVMeoF controller, SPDK always set volatile write
618 : * cache bit to 1, return success for those block devices
619 : * which can't support FLUSH command.
620 : */
621 3 : if (!spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_FLUSH)) {
622 1 : response->status.sct = SPDK_NVME_SCT_GENERIC;
623 1 : response->status.sc = SPDK_NVME_SC_SUCCESS;
624 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
625 : }
626 :
627 2 : rc = spdk_bdev_flush_blocks(desc, ch, 0, spdk_bdev_get_num_blocks(bdev),
628 : nvmf_bdev_ctrlr_complete_cmd, req);
629 2 : if (spdk_unlikely(rc)) {
630 1 : if (rc == -ENOMEM) {
631 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
632 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
633 : }
634 1 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
635 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
636 : }
637 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
638 : }
639 :
640 : struct nvmf_bdev_ctrlr_unmap {
641 : struct spdk_nvmf_request *req;
642 : uint32_t count;
643 : struct spdk_bdev_desc *desc;
644 : struct spdk_bdev *bdev;
645 : struct spdk_io_channel *ch;
646 : uint32_t range_index;
647 : };
648 :
649 : static void
650 0 : nvmf_bdev_ctrlr_unmap_cpl(struct spdk_bdev_io *bdev_io, bool success,
651 : void *cb_arg)
652 : {
653 0 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx = cb_arg;
654 0 : struct spdk_nvmf_request *req = unmap_ctx->req;
655 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
656 : int sc, sct;
657 : uint32_t cdw0;
658 :
659 0 : unmap_ctx->count--;
660 :
661 0 : if (response->status.sct == SPDK_NVME_SCT_GENERIC &&
662 0 : response->status.sc == SPDK_NVME_SC_SUCCESS) {
663 0 : spdk_bdev_io_get_nvme_status(bdev_io, &cdw0, &sct, &sc);
664 0 : response->cdw0 = cdw0;
665 0 : response->status.sc = sc;
666 0 : response->status.sct = sct;
667 : }
668 :
669 0 : if (unmap_ctx->count == 0) {
670 0 : spdk_nvmf_request_complete(req);
671 0 : free(unmap_ctx);
672 : }
673 0 : spdk_bdev_free_io(bdev_io);
674 0 : }
675 :
676 : static int nvmf_bdev_ctrlr_unmap(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
677 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
678 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx);
679 : static void
680 0 : nvmf_bdev_ctrlr_unmap_resubmit(void *arg)
681 : {
682 0 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx = arg;
683 0 : struct spdk_nvmf_request *req = unmap_ctx->req;
684 0 : struct spdk_bdev_desc *desc = unmap_ctx->desc;
685 0 : struct spdk_bdev *bdev = unmap_ctx->bdev;
686 0 : struct spdk_io_channel *ch = unmap_ctx->ch;
687 :
688 0 : nvmf_bdev_ctrlr_unmap(bdev, desc, ch, req, unmap_ctx);
689 0 : }
690 :
691 : static int
692 0 : nvmf_bdev_ctrlr_unmap(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
693 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
694 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx)
695 : {
696 : uint16_t nr, i;
697 0 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
698 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
699 0 : uint64_t max_discard_size = req->qpair->ctrlr->subsys->max_discard_size_kib;
700 0 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
701 : struct spdk_iov_xfer ix;
702 : uint64_t lba;
703 : uint32_t lba_count;
704 : int rc;
705 :
706 0 : nr = cmd->cdw10_bits.dsm.nr + 1;
707 0 : if (nr * sizeof(struct spdk_nvme_dsm_range) > req->length) {
708 0 : SPDK_ERRLOG("Dataset Management number of ranges > SGL length\n");
709 0 : response->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
710 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
711 : }
712 :
713 0 : if (unmap_ctx == NULL) {
714 0 : unmap_ctx = calloc(1, sizeof(*unmap_ctx));
715 0 : if (!unmap_ctx) {
716 0 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
717 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
718 : }
719 :
720 0 : unmap_ctx->req = req;
721 0 : unmap_ctx->desc = desc;
722 0 : unmap_ctx->ch = ch;
723 0 : unmap_ctx->bdev = bdev;
724 :
725 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
726 0 : response->status.sc = SPDK_NVME_SC_SUCCESS;
727 : } else {
728 0 : unmap_ctx->count--; /* dequeued */
729 : }
730 :
731 0 : spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
732 :
733 0 : for (i = unmap_ctx->range_index; i < nr; i++) {
734 0 : struct spdk_nvme_dsm_range dsm_range = { 0 };
735 :
736 0 : spdk_iov_xfer_to_buf(&ix, &dsm_range, sizeof(dsm_range));
737 :
738 0 : lba = dsm_range.starting_lba;
739 0 : lba_count = dsm_range.length;
740 0 : if (max_discard_size > 0 && lba_count > (max_discard_size << 10) / block_size) {
741 0 : SPDK_ERRLOG("invalid unmap size %" PRIu32 " blocks, should not exceed %" PRIu64 " blocks\n",
742 : lba_count, max_discard_size << 1);
743 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
744 0 : response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
745 0 : break;
746 : }
747 :
748 0 : unmap_ctx->count++;
749 :
750 0 : rc = spdk_bdev_unmap_blocks(desc, ch, lba, lba_count,
751 : nvmf_bdev_ctrlr_unmap_cpl, unmap_ctx);
752 0 : if (rc) {
753 0 : if (rc == -ENOMEM) {
754 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_bdev_ctrlr_unmap_resubmit, unmap_ctx);
755 : /* Unmap was not yet submitted to bdev */
756 : /* unmap_ctx->count will be decremented when the request is dequeued */
757 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
758 : }
759 0 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
760 0 : unmap_ctx->count--;
761 : /* We can't return here - we may have to wait for any other
762 : * unmaps already sent to complete */
763 0 : break;
764 : }
765 0 : unmap_ctx->range_index++;
766 : }
767 :
768 0 : if (unmap_ctx->count == 0) {
769 0 : free(unmap_ctx);
770 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
771 : }
772 :
773 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
774 : }
775 :
776 : int
777 0 : nvmf_bdev_ctrlr_dsm_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
778 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
779 : {
780 0 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
781 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
782 :
783 0 : if (cmd->cdw11_bits.dsm.ad) {
784 0 : return nvmf_bdev_ctrlr_unmap(bdev, desc, ch, req, NULL);
785 : }
786 :
787 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
788 0 : response->status.sc = SPDK_NVME_SC_SUCCESS;
789 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
790 : }
791 :
792 : int
793 5 : nvmf_bdev_ctrlr_copy_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
794 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
795 : {
796 5 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
797 5 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
798 5 : uint64_t sdlba = ((uint64_t)cmd->cdw11 << 32) + cmd->cdw10;
799 5 : struct spdk_nvme_scc_source_range range = { 0 };
800 : struct spdk_iov_xfer ix;
801 : int rc;
802 :
803 5 : SPDK_DEBUGLOG(nvmf, "Copy command: SDLBA %lu, NR %u, desc format %u, PRINFOR %u, "
804 : "DTYPE %u, STCW %u, PRINFOW %u, FUA %u, LR %u\n",
805 : sdlba,
806 : cmd->cdw12_bits.copy.nr,
807 : cmd->cdw12_bits.copy.df,
808 : cmd->cdw12_bits.copy.prinfor,
809 : cmd->cdw12_bits.copy.dtype,
810 : cmd->cdw12_bits.copy.stcw,
811 : cmd->cdw12_bits.copy.prinfow,
812 : cmd->cdw12_bits.copy.fua,
813 : cmd->cdw12_bits.copy.lr);
814 :
815 5 : if (spdk_unlikely(req->length != (cmd->cdw12_bits.copy.nr + 1) *
816 : sizeof(struct spdk_nvme_scc_source_range))) {
817 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
818 0 : response->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
819 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
820 : }
821 :
822 : /*
823 : * We support only one source range, and rely on this with the xfer
824 : * below.
825 : */
826 5 : if (cmd->cdw12_bits.copy.nr > 0) {
827 1 : response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
828 1 : response->status.sc = SPDK_NVME_SC_CMD_SIZE_LIMIT_SIZE_EXCEEDED;
829 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
830 : }
831 :
832 4 : if (cmd->cdw12_bits.copy.df != 0) {
833 1 : response->status.sct = SPDK_NVME_SCT_GENERIC;
834 1 : response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
835 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
836 : }
837 :
838 3 : spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
839 3 : spdk_iov_xfer_to_buf(&ix, &range, sizeof(range));
840 :
841 3 : rc = spdk_bdev_copy_blocks(desc, ch, sdlba, range.slba, range.nlb + 1,
842 : nvmf_bdev_ctrlr_complete_cmd, req);
843 3 : if (spdk_unlikely(rc)) {
844 1 : if (rc == -ENOMEM) {
845 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
846 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
847 : }
848 :
849 1 : response->status.sct = SPDK_NVME_SCT_GENERIC;
850 1 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
851 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
852 : }
853 :
854 2 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
855 : }
856 :
857 : int
858 4 : nvmf_bdev_ctrlr_nvme_passthru_io(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
859 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
860 : {
861 : int rc;
862 :
863 4 : rc = spdk_bdev_nvme_iov_passthru_md(desc, ch, &req->cmd->nvme_cmd, req->iov, req->iovcnt,
864 4 : req->length, NULL, 0, nvmf_bdev_ctrlr_complete_cmd, req);
865 :
866 4 : if (spdk_unlikely(rc)) {
867 2 : if (rc == -ENOMEM) {
868 1 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
869 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
870 : }
871 1 : req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
872 1 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
873 1 : req->rsp->nvme_cpl.status.dnr = 1;
874 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
875 : }
876 :
877 2 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
878 : }
879 :
880 : int
881 4 : spdk_nvmf_bdev_ctrlr_nvme_passthru_admin(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
882 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
883 : spdk_nvmf_nvme_passthru_cmd_cb cb_fn)
884 : {
885 : int rc;
886 :
887 4 : if (spdk_unlikely(req->iovcnt > 1)) {
888 0 : req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
889 0 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
890 0 : req->rsp->nvme_cpl.status.dnr = 1;
891 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
892 : }
893 :
894 4 : req->cmd_cb_fn = cb_fn;
895 :
896 4 : rc = spdk_bdev_nvme_admin_passthru(desc, ch, &req->cmd->nvme_cmd, req->iov[0].iov_base, req->length,
897 : nvmf_bdev_ctrlr_complete_admin_cmd, req);
898 4 : if (spdk_unlikely(rc)) {
899 2 : if (rc == -ENOMEM) {
900 1 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_admin_cmd_resubmit, req);
901 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
902 : }
903 1 : req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
904 1 : if (rc == -ENOTSUP) {
905 1 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
906 : } else {
907 0 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
908 : }
909 :
910 1 : req->rsp->nvme_cpl.status.dnr = 1;
911 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
912 : }
913 :
914 2 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
915 : }
916 :
917 : static void
918 0 : nvmf_bdev_ctrlr_complete_abort_cmd(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg)
919 : {
920 0 : struct spdk_nvmf_request *req = cb_arg;
921 :
922 0 : if (success) {
923 0 : req->rsp->nvme_cpl.cdw0 &= ~1U;
924 : }
925 :
926 0 : spdk_nvmf_request_complete(req);
927 0 : spdk_bdev_free_io(bdev_io);
928 0 : }
929 :
930 : int
931 0 : spdk_nvmf_bdev_ctrlr_abort_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
932 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
933 : struct spdk_nvmf_request *req_to_abort)
934 : {
935 : int rc;
936 :
937 0 : assert((req->rsp->nvme_cpl.cdw0 & 1U) != 0);
938 :
939 0 : rc = spdk_bdev_abort(desc, ch, req_to_abort, nvmf_bdev_ctrlr_complete_abort_cmd, req);
940 0 : if (spdk_likely(rc == 0)) {
941 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
942 0 : } else if (rc == -ENOMEM) {
943 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_admin_cmd_resubmit, req);
944 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
945 : } else {
946 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
947 : }
948 : }
949 :
950 : bool
951 2 : nvmf_bdev_ctrlr_get_dif_ctx(struct spdk_bdev_desc *desc, struct spdk_nvme_cmd *cmd,
952 : struct spdk_dif_ctx *dif_ctx)
953 : {
954 2 : uint32_t init_ref_tag, dif_check_flags = 0;
955 : int rc;
956 : struct spdk_dif_ctx_init_ext_opts dif_opts;
957 :
958 2 : if (spdk_bdev_desc_get_md_size(desc) == 0) {
959 1 : return false;
960 : }
961 :
962 : /* Initial Reference Tag is the lower 32 bits of the start LBA. */
963 1 : init_ref_tag = (uint32_t)from_le64(&cmd->cdw10);
964 :
965 1 : if (spdk_bdev_desc_is_dif_check_enabled(desc, SPDK_DIF_CHECK_TYPE_REFTAG)) {
966 0 : dif_check_flags |= SPDK_DIF_FLAGS_REFTAG_CHECK;
967 : }
968 :
969 1 : if (spdk_bdev_desc_is_dif_check_enabled(desc, SPDK_DIF_CHECK_TYPE_GUARD)) {
970 0 : dif_check_flags |= SPDK_DIF_FLAGS_GUARD_CHECK;
971 : }
972 :
973 1 : dif_opts.size = SPDK_SIZEOF(&dif_opts, dif_pi_format);
974 1 : dif_opts.dif_pi_format = SPDK_DIF_PI_FORMAT_16;
975 2 : rc = spdk_dif_ctx_init(dif_ctx,
976 : spdk_bdev_desc_get_block_size(desc),
977 : spdk_bdev_desc_get_md_size(desc),
978 1 : spdk_bdev_desc_is_md_interleaved(desc),
979 1 : spdk_bdev_desc_is_dif_head_of_md(desc),
980 : spdk_bdev_desc_get_dif_type(desc),
981 : dif_check_flags,
982 : init_ref_tag, 0, 0, 0, 0, &dif_opts);
983 :
984 1 : return (rc == 0) ? true : false;
985 : }
986 :
987 : static void
988 0 : nvmf_bdev_ctrlr_zcopy_start_complete(struct spdk_bdev_io *bdev_io, bool success,
989 : void *cb_arg)
990 : {
991 0 : struct spdk_nvmf_request *req = cb_arg;
992 : struct iovec *iov;
993 0 : int iovcnt = 0;
994 :
995 0 : if (spdk_unlikely(!success)) {
996 0 : int sc = 0, sct = 0;
997 0 : uint32_t cdw0 = 0;
998 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
999 0 : spdk_bdev_io_get_nvme_status(bdev_io, &cdw0, &sct, &sc);
1000 :
1001 0 : response->cdw0 = cdw0;
1002 0 : response->status.sc = sc;
1003 0 : response->status.sct = sct;
1004 :
1005 0 : spdk_bdev_free_io(bdev_io);
1006 0 : spdk_nvmf_request_complete(req);
1007 0 : return;
1008 : }
1009 :
1010 0 : spdk_bdev_io_get_iovec(bdev_io, &iov, &iovcnt);
1011 :
1012 0 : assert(iovcnt <= NVMF_REQ_MAX_BUFFERS);
1013 0 : assert(iovcnt > 0);
1014 :
1015 0 : req->iovcnt = iovcnt;
1016 :
1017 0 : assert(req->iov == iov);
1018 :
1019 0 : req->zcopy_bdev_io = bdev_io; /* Preserve the bdev_io for the end zcopy */
1020 :
1021 0 : spdk_nvmf_request_complete(req);
1022 : /* Don't free the bdev_io here as it is needed for the END ZCOPY */
1023 : }
1024 :
1025 : int
1026 3 : nvmf_bdev_ctrlr_zcopy_start(struct spdk_bdev *bdev,
1027 : struct spdk_bdev_desc *desc,
1028 : struct spdk_io_channel *ch,
1029 : struct spdk_nvmf_request *req)
1030 : {
1031 3 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
1032 3 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
1033 3 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
1034 : uint64_t start_lba;
1035 : uint64_t num_blocks;
1036 : int rc;
1037 :
1038 3 : nvmf_bdev_ctrlr_get_rw_params(&req->cmd->nvme_cmd, &start_lba, &num_blocks);
1039 :
1040 3 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
1041 1 : SPDK_ERRLOG("end of media\n");
1042 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
1043 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
1044 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
1045 : }
1046 :
1047 2 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
1048 1 : SPDK_ERRLOG("Read NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
1049 : num_blocks, block_size, req->length);
1050 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
1051 1 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
1052 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
1053 : }
1054 :
1055 1 : bool populate = (req->cmd->nvme_cmd.opc == SPDK_NVME_OPC_READ) ? true : false;
1056 :
1057 1 : rc = spdk_bdev_zcopy_start(desc, ch, req->iov, req->iovcnt, start_lba,
1058 : num_blocks, populate, nvmf_bdev_ctrlr_zcopy_start_complete, req);
1059 1 : if (spdk_unlikely(rc != 0)) {
1060 0 : if (rc == -ENOMEM) {
1061 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
1062 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
1063 : }
1064 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
1065 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
1066 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
1067 : }
1068 :
1069 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
1070 : }
1071 :
1072 : static void
1073 0 : nvmf_bdev_ctrlr_zcopy_end_complete(struct spdk_bdev_io *bdev_io, bool success,
1074 : void *cb_arg)
1075 : {
1076 0 : struct spdk_nvmf_request *req = cb_arg;
1077 :
1078 0 : if (spdk_unlikely(!success)) {
1079 0 : int sc = 0, sct = 0;
1080 0 : uint32_t cdw0 = 0;
1081 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
1082 0 : spdk_bdev_io_get_nvme_status(bdev_io, &cdw0, &sct, &sc);
1083 :
1084 0 : response->cdw0 = cdw0;
1085 0 : response->status.sc = sc;
1086 0 : response->status.sct = sct;
1087 : }
1088 :
1089 0 : spdk_bdev_free_io(bdev_io);
1090 0 : req->zcopy_bdev_io = NULL;
1091 0 : spdk_nvmf_request_complete(req);
1092 0 : }
1093 :
1094 : void
1095 0 : nvmf_bdev_ctrlr_zcopy_end(struct spdk_nvmf_request *req, bool commit)
1096 : {
1097 : int rc __attribute__((unused));
1098 :
1099 0 : rc = spdk_bdev_zcopy_end(req->zcopy_bdev_io, commit, nvmf_bdev_ctrlr_zcopy_end_complete, req);
1100 :
1101 : /* The only way spdk_bdev_zcopy_end() can fail is if we pass a bdev_io type that isn't ZCOPY */
1102 0 : assert(rc == 0);
1103 0 : }
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