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 0 : }
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 0 : }
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 0 : } 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 0 : }
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 : /* NVMf library doesn't process PRACT and PRCHK flags, we
146 : * leave the use of extended LBA buffer to users.
147 : */
148 1 : nsdata->dps.pit = SPDK_NVME_FMT_NVM_PROTECTION_DISABLE;
149 1 : }
150 1 : } else {
151 1 : nsdata->lbaf[0].ms = 0;
152 1 : nsdata->lbaf[0].lbads = spdk_u32log2(spdk_bdev_get_data_block_size(bdev));
153 : }
154 :
155 2 : phys_blocklen = spdk_bdev_get_physical_block_size(bdev);
156 2 : assert(phys_blocklen > 0);
157 : /* Linux driver uses min(nawupf, npwg) to set physical_block_size */
158 2 : nsdata->nsfeat.optperf = 1;
159 2 : nsdata->nsfeat.ns_atomic_write_unit = 1;
160 2 : nsdata->npwg = (phys_blocklen >> nsdata->lbaf[0].lbads) - 1;
161 2 : nsdata->nawupf = nsdata->npwg;
162 2 : nsdata->npwa = nsdata->npwg;
163 2 : nsdata->npdg = nsdata->npwg;
164 2 : nsdata->npda = nsdata->npwg;
165 :
166 2 : if (spdk_bdev_get_write_unit_size(bdev) == 1) {
167 2 : nsdata->noiob = spdk_bdev_get_optimal_io_boundary(bdev);
168 2 : }
169 2 : nsdata->nmic.can_share = 1;
170 2 : if (nvmf_ns_is_ptpl_capable(ns)) {
171 2 : nsdata->nsrescap.rescap.persist = 1;
172 2 : }
173 2 : nsdata->nsrescap.rescap.write_exclusive = 1;
174 2 : nsdata->nsrescap.rescap.exclusive_access = 1;
175 2 : nsdata->nsrescap.rescap.write_exclusive_reg_only = 1;
176 2 : nsdata->nsrescap.rescap.exclusive_access_reg_only = 1;
177 2 : nsdata->nsrescap.rescap.write_exclusive_all_reg = 1;
178 2 : nsdata->nsrescap.rescap.exclusive_access_all_reg = 1;
179 2 : nsdata->nsrescap.rescap.ignore_existing_key = 1;
180 :
181 : SPDK_STATIC_ASSERT(sizeof(nsdata->nguid) == sizeof(ns->opts.nguid), "size mismatch");
182 2 : memcpy(nsdata->nguid, ns->opts.nguid, sizeof(nsdata->nguid));
183 :
184 : SPDK_STATIC_ASSERT(sizeof(nsdata->eui64) == sizeof(ns->opts.eui64), "size mismatch");
185 2 : memcpy(&nsdata->eui64, ns->opts.eui64, sizeof(nsdata->eui64));
186 :
187 : /* For now we support just one source range for copy command */
188 2 : nsdata->msrc = 0;
189 :
190 2 : max_copy = spdk_bdev_get_max_copy(bdev);
191 2 : if (max_copy == 0 || max_copy > UINT16_MAX) {
192 : /* Zero means copy size is unlimited */
193 2 : nsdata->mcl = UINT16_MAX;
194 2 : nsdata->mssrl = UINT16_MAX;
195 2 : } else {
196 0 : nsdata->mcl = max_copy;
197 0 : nsdata->mssrl = max_copy;
198 : }
199 2 : }
200 :
201 : void
202 0 : nvmf_bdev_ctrlr_identify_iocs_nvm(struct spdk_nvmf_ns *ns,
203 : struct spdk_nvme_nvm_ns_data *nsdata_nvm)
204 : {
205 0 : struct spdk_bdev_desc *desc = ns->desc;
206 : uint8_t _16bpists;
207 : uint32_t sts, pif;
208 :
209 0 : if (spdk_bdev_desc_get_dif_type(desc) == SPDK_DIF_DISABLE) {
210 0 : return;
211 : }
212 :
213 0 : pif = spdk_bdev_desc_get_dif_pi_format(desc);
214 :
215 : /*
216 : * 16BPISTS shall be 1 for 32/64b Guard PI.
217 : * STCRS shall be 1 if 16BPISTS is 1.
218 : * 16 is the minimum value of STS for 32b Guard PI.
219 : */
220 0 : switch (pif) {
221 : case SPDK_DIF_PI_FORMAT_16:
222 0 : _16bpists = 0;
223 0 : sts = 0;
224 0 : break;
225 : case SPDK_DIF_PI_FORMAT_32:
226 0 : _16bpists = 1;
227 0 : sts = 16;
228 0 : break;
229 : case SPDK_DIF_PI_FORMAT_64:
230 0 : _16bpists = 1;
231 0 : sts = 0;
232 0 : break;
233 : default:
234 0 : SPDK_WARNLOG("PI format %u is not supported\n", pif);
235 0 : return;
236 : }
237 :
238 : /* For 16b Guard PI, Storage Tag is not available because we set STS to 0.
239 : * In this case, we do not have to set 16BPISTM to 1. For simplicity,
240 : * set 16BPISTM to 0 and set LBSTM to all zeroes.
241 : *
242 : * We will revisit here when we find any OS uses Storage Tag.
243 : */
244 0 : nsdata_nvm->lbstm = 0;
245 0 : nsdata_nvm->pic._16bpistm = 0;
246 :
247 0 : nsdata_nvm->pic._16bpists = _16bpists;
248 0 : nsdata_nvm->pic.stcrs = 0;
249 0 : nsdata_nvm->elbaf[0].sts = sts;
250 0 : nsdata_nvm->elbaf[0].pif = pif;
251 0 : }
252 :
253 : static void
254 22 : nvmf_bdev_ctrlr_get_rw_params(const struct spdk_nvme_cmd *cmd, uint64_t *start_lba,
255 : uint64_t *num_blocks)
256 : {
257 : /* SLBA: CDW10 and CDW11 */
258 22 : *start_lba = from_le64(&cmd->cdw10);
259 :
260 : /* NLB: CDW12 bits 15:00, 0's based */
261 22 : *num_blocks = (from_le32(&cmd->cdw12) & 0xFFFFu) + 1;
262 22 : }
263 :
264 : static void
265 2 : nvmf_bdev_ctrlr_get_rw_ext_params(const struct spdk_nvme_cmd *cmd,
266 : struct spdk_bdev_ext_io_opts *opts)
267 : {
268 : /* Get CDW12 values */
269 2 : opts->nvme_cdw12.raw = from_le32(&cmd->cdw12);
270 :
271 : /* Get CDW13 values */
272 2 : opts->nvme_cdw13.raw = from_le32(&cmd->cdw13);
273 2 : }
274 :
275 : static bool
276 27 : nvmf_bdev_ctrlr_lba_in_range(uint64_t bdev_num_blocks, uint64_t io_start_lba,
277 : uint64_t io_num_blocks)
278 : {
279 27 : if (io_start_lba + io_num_blocks > bdev_num_blocks ||
280 19 : io_start_lba + io_num_blocks < io_start_lba) {
281 10 : return false;
282 : }
283 :
284 17 : return true;
285 27 : }
286 :
287 : static void
288 0 : nvmf_ctrlr_process_io_cmd_resubmit(void *arg)
289 : {
290 0 : struct spdk_nvmf_request *req = arg;
291 : int rc;
292 :
293 0 : rc = nvmf_ctrlr_process_io_cmd(req);
294 0 : if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
295 0 : spdk_nvmf_request_complete(req);
296 0 : }
297 0 : }
298 :
299 : static void
300 0 : nvmf_ctrlr_process_admin_cmd_resubmit(void *arg)
301 : {
302 0 : struct spdk_nvmf_request *req = arg;
303 : int rc;
304 :
305 0 : rc = nvmf_ctrlr_process_admin_cmd(req);
306 0 : if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
307 0 : spdk_nvmf_request_complete(req);
308 0 : }
309 0 : }
310 :
311 : static void
312 2 : nvmf_bdev_ctrl_queue_io(struct spdk_nvmf_request *req, struct spdk_bdev *bdev,
313 : struct spdk_io_channel *ch, spdk_bdev_io_wait_cb cb_fn, void *cb_arg)
314 : {
315 : int rc;
316 :
317 2 : req->bdev_io_wait.bdev = bdev;
318 2 : req->bdev_io_wait.cb_fn = cb_fn;
319 2 : req->bdev_io_wait.cb_arg = cb_arg;
320 :
321 2 : rc = spdk_bdev_queue_io_wait(bdev, ch, &req->bdev_io_wait);
322 2 : if (rc != 0) {
323 0 : assert(false);
324 : }
325 2 : req->qpair->group->stat.pending_bdev_io++;
326 2 : }
327 :
328 : bool
329 0 : nvmf_bdev_zcopy_enabled(struct spdk_bdev *bdev)
330 : {
331 0 : return spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_ZCOPY);
332 : }
333 :
334 : int
335 1 : nvmf_bdev_ctrlr_read_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
336 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
337 : {
338 4 : struct spdk_bdev_ext_io_opts opts = {
339 : .size = SPDK_SIZEOF(&opts, accel_sequence),
340 1 : .memory_domain = req->memory_domain,
341 1 : .memory_domain_ctx = req->memory_domain_ctx,
342 1 : .accel_sequence = req->accel_sequence,
343 : };
344 1 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
345 1 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
346 1 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
347 1 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
348 : uint64_t start_lba;
349 : uint64_t num_blocks;
350 : int rc;
351 :
352 1 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
353 :
354 1 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
355 0 : SPDK_ERRLOG("end of media\n");
356 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
357 0 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
358 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
359 : }
360 :
361 1 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
362 0 : SPDK_ERRLOG("Read NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
363 : num_blocks, block_size, req->length);
364 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
365 0 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
366 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
367 : }
368 :
369 1 : assert(!spdk_nvmf_request_using_zcopy(req));
370 :
371 2 : rc = spdk_bdev_readv_blocks_ext(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks,
372 1 : nvmf_bdev_ctrlr_complete_cmd, req, &opts);
373 1 : if (spdk_unlikely(rc)) {
374 0 : if (rc == -ENOMEM) {
375 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
376 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
377 : }
378 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
379 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
380 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
381 : }
382 :
383 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
384 1 : }
385 :
386 : int
387 1 : nvmf_bdev_ctrlr_write_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
388 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
389 : {
390 4 : struct spdk_bdev_ext_io_opts opts = {
391 : .size = SPDK_SIZEOF(&opts, nvme_cdw13),
392 1 : .memory_domain = req->memory_domain,
393 1 : .memory_domain_ctx = req->memory_domain_ctx,
394 1 : .accel_sequence = req->accel_sequence,
395 : };
396 1 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
397 1 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
398 1 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
399 1 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
400 : uint64_t start_lba;
401 : uint64_t num_blocks;
402 : int rc;
403 :
404 1 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
405 1 : nvmf_bdev_ctrlr_get_rw_ext_params(cmd, &opts);
406 :
407 1 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
408 0 : SPDK_ERRLOG("end of media\n");
409 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
410 0 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
411 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
412 : }
413 :
414 1 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
415 0 : SPDK_ERRLOG("Write NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
416 : num_blocks, block_size, req->length);
417 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
418 0 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
419 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
420 : }
421 :
422 1 : assert(!spdk_nvmf_request_using_zcopy(req));
423 :
424 2 : rc = spdk_bdev_writev_blocks_ext(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks,
425 1 : nvmf_bdev_ctrlr_complete_cmd, req, &opts);
426 1 : if (spdk_unlikely(rc)) {
427 0 : if (rc == -ENOMEM) {
428 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
429 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
430 : }
431 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
432 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
433 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
434 : }
435 :
436 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
437 1 : }
438 :
439 : int
440 4 : nvmf_bdev_ctrlr_compare_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
441 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
442 : {
443 4 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
444 4 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
445 4 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
446 4 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
447 : uint64_t start_lba;
448 : uint64_t num_blocks;
449 : int rc;
450 :
451 4 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
452 :
453 4 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
454 1 : SPDK_ERRLOG("end of media\n");
455 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
456 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
457 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
458 : }
459 :
460 3 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
461 1 : SPDK_ERRLOG("Compare NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
462 : num_blocks, block_size, req->length);
463 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
464 1 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
465 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
466 : }
467 :
468 4 : rc = spdk_bdev_comparev_blocks(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks,
469 2 : nvmf_bdev_ctrlr_complete_cmd, req);
470 2 : if (spdk_unlikely(rc)) {
471 1 : if (rc == -ENOMEM) {
472 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
473 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
474 : }
475 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
476 1 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
477 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
478 : }
479 :
480 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
481 4 : }
482 :
483 : int
484 4 : nvmf_bdev_ctrlr_compare_and_write_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
485 : struct spdk_io_channel *ch, struct spdk_nvmf_request *cmp_req, struct spdk_nvmf_request *write_req)
486 : {
487 4 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
488 4 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
489 4 : struct spdk_nvme_cmd *cmp_cmd = &cmp_req->cmd->nvme_cmd;
490 4 : struct spdk_nvme_cmd *write_cmd = &write_req->cmd->nvme_cmd;
491 4 : struct spdk_nvme_cpl *rsp = &write_req->rsp->nvme_cpl;
492 : uint64_t write_start_lba, cmp_start_lba;
493 : uint64_t write_num_blocks, cmp_num_blocks;
494 : int rc;
495 :
496 4 : nvmf_bdev_ctrlr_get_rw_params(cmp_cmd, &cmp_start_lba, &cmp_num_blocks);
497 4 : nvmf_bdev_ctrlr_get_rw_params(write_cmd, &write_start_lba, &write_num_blocks);
498 :
499 4 : if (spdk_unlikely(write_start_lba != cmp_start_lba || write_num_blocks != cmp_num_blocks)) {
500 1 : SPDK_ERRLOG("Fused command start lba / num blocks mismatch\n");
501 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
502 1 : rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
503 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
504 : }
505 :
506 3 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, write_start_lba,
507 : write_num_blocks))) {
508 1 : SPDK_ERRLOG("end of media\n");
509 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
510 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
511 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
512 : }
513 :
514 2 : if (spdk_unlikely(write_num_blocks * block_size > write_req->length)) {
515 1 : SPDK_ERRLOG("Write NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
516 : write_num_blocks, block_size, write_req->length);
517 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
518 1 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
519 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
520 : }
521 :
522 2 : rc = spdk_bdev_comparev_and_writev_blocks(desc, ch, cmp_req->iov, cmp_req->iovcnt, write_req->iov,
523 1 : write_req->iovcnt, write_start_lba, write_num_blocks, nvmf_bdev_ctrlr_complete_cmd, write_req);
524 1 : if (spdk_unlikely(rc)) {
525 0 : if (rc == -ENOMEM) {
526 0 : nvmf_bdev_ctrl_queue_io(cmp_req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, cmp_req);
527 0 : nvmf_bdev_ctrl_queue_io(write_req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, write_req);
528 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
529 : }
530 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
531 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
532 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
533 : }
534 :
535 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
536 4 : }
537 :
538 : int
539 4 : nvmf_bdev_ctrlr_write_zeroes_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
540 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
541 : {
542 4 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
543 4 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
544 4 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
545 4 : uint64_t max_write_zeroes_size = req->qpair->ctrlr->subsys->max_write_zeroes_size_kib;
546 : uint64_t start_lba;
547 : uint64_t num_blocks;
548 : int rc;
549 :
550 4 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
551 4 : if (spdk_unlikely(max_write_zeroes_size > 0 &&
552 : num_blocks > (max_write_zeroes_size << 10) / spdk_bdev_desc_get_block_size(desc))) {
553 1 : SPDK_ERRLOG("invalid write zeroes size, should not exceed %" PRIu64 "Kib\n", max_write_zeroes_size);
554 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
555 1 : rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
556 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
557 : }
558 :
559 3 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
560 1 : SPDK_ERRLOG("end of media\n");
561 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
562 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
563 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
564 : }
565 :
566 2 : if (spdk_unlikely(cmd->cdw12_bits.write_zeroes.deac)) {
567 0 : SPDK_ERRLOG("Write Zeroes Deallocate is not supported\n");
568 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
569 0 : rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
570 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
571 : }
572 :
573 4 : rc = spdk_bdev_write_zeroes_blocks(desc, ch, start_lba, num_blocks,
574 2 : nvmf_bdev_ctrlr_complete_cmd, req);
575 2 : if (spdk_unlikely(rc)) {
576 1 : if (rc == -ENOMEM) {
577 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
578 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
579 : }
580 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
581 1 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
582 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
583 : }
584 :
585 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
586 4 : }
587 :
588 : int
589 3 : nvmf_bdev_ctrlr_flush_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
590 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
591 : {
592 3 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
593 : int rc;
594 :
595 : /* As for NVMeoF controller, SPDK always set volatile write
596 : * cache bit to 1, return success for those block devices
597 : * which can't support FLUSH command.
598 : */
599 3 : if (!spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_FLUSH)) {
600 1 : response->status.sct = SPDK_NVME_SCT_GENERIC;
601 1 : response->status.sc = SPDK_NVME_SC_SUCCESS;
602 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
603 : }
604 :
605 4 : rc = spdk_bdev_flush_blocks(desc, ch, 0, spdk_bdev_get_num_blocks(bdev),
606 2 : nvmf_bdev_ctrlr_complete_cmd, req);
607 2 : if (spdk_unlikely(rc)) {
608 1 : if (rc == -ENOMEM) {
609 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
610 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
611 : }
612 1 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
613 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
614 : }
615 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
616 3 : }
617 :
618 : struct nvmf_bdev_ctrlr_unmap {
619 : struct spdk_nvmf_request *req;
620 : uint32_t count;
621 : struct spdk_bdev_desc *desc;
622 : struct spdk_bdev *bdev;
623 : struct spdk_io_channel *ch;
624 : uint32_t range_index;
625 : };
626 :
627 : static void
628 0 : nvmf_bdev_ctrlr_unmap_cpl(struct spdk_bdev_io *bdev_io, bool success,
629 : void *cb_arg)
630 : {
631 0 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx = cb_arg;
632 0 : struct spdk_nvmf_request *req = unmap_ctx->req;
633 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
634 : int sc, sct;
635 : uint32_t cdw0;
636 :
637 0 : unmap_ctx->count--;
638 :
639 0 : if (response->status.sct == SPDK_NVME_SCT_GENERIC &&
640 0 : response->status.sc == SPDK_NVME_SC_SUCCESS) {
641 0 : spdk_bdev_io_get_nvme_status(bdev_io, &cdw0, &sct, &sc);
642 0 : response->cdw0 = cdw0;
643 0 : response->status.sc = sc;
644 0 : response->status.sct = sct;
645 0 : }
646 :
647 0 : if (unmap_ctx->count == 0) {
648 0 : spdk_nvmf_request_complete(req);
649 0 : free(unmap_ctx);
650 0 : }
651 0 : spdk_bdev_free_io(bdev_io);
652 0 : }
653 :
654 : static int nvmf_bdev_ctrlr_unmap(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
655 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
656 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx);
657 : static void
658 0 : nvmf_bdev_ctrlr_unmap_resubmit(void *arg)
659 : {
660 0 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx = arg;
661 0 : struct spdk_nvmf_request *req = unmap_ctx->req;
662 0 : struct spdk_bdev_desc *desc = unmap_ctx->desc;
663 0 : struct spdk_bdev *bdev = unmap_ctx->bdev;
664 0 : struct spdk_io_channel *ch = unmap_ctx->ch;
665 :
666 0 : nvmf_bdev_ctrlr_unmap(bdev, desc, ch, req, unmap_ctx);
667 0 : }
668 :
669 : static int
670 0 : nvmf_bdev_ctrlr_unmap(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
671 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
672 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx)
673 : {
674 : uint16_t nr, i;
675 0 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
676 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
677 0 : uint64_t max_discard_size = req->qpair->ctrlr->subsys->max_discard_size_kib;
678 0 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
679 : struct spdk_iov_xfer ix;
680 : uint64_t lba;
681 : uint32_t lba_count;
682 : int rc;
683 :
684 0 : nr = cmd->cdw10_bits.dsm.nr + 1;
685 0 : if (nr * sizeof(struct spdk_nvme_dsm_range) > req->length) {
686 0 : SPDK_ERRLOG("Dataset Management number of ranges > SGL length\n");
687 0 : response->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
688 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
689 : }
690 :
691 0 : if (unmap_ctx == NULL) {
692 0 : unmap_ctx = calloc(1, sizeof(*unmap_ctx));
693 0 : if (!unmap_ctx) {
694 0 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
695 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
696 : }
697 :
698 0 : unmap_ctx->req = req;
699 0 : unmap_ctx->desc = desc;
700 0 : unmap_ctx->ch = ch;
701 0 : unmap_ctx->bdev = bdev;
702 :
703 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
704 0 : response->status.sc = SPDK_NVME_SC_SUCCESS;
705 0 : } else {
706 0 : unmap_ctx->count--; /* dequeued */
707 : }
708 :
709 0 : spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
710 :
711 0 : for (i = unmap_ctx->range_index; i < nr; i++) {
712 0 : struct spdk_nvme_dsm_range dsm_range = { 0 };
713 :
714 0 : spdk_iov_xfer_to_buf(&ix, &dsm_range, sizeof(dsm_range));
715 :
716 0 : lba = dsm_range.starting_lba;
717 0 : lba_count = dsm_range.length;
718 0 : if (max_discard_size > 0 && lba_count > (max_discard_size << 10) / block_size) {
719 0 : SPDK_ERRLOG("invalid unmap size %" PRIu32 " blocks, should not exceed %" PRIu64 " blocks\n",
720 : lba_count, max_discard_size << 1);
721 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
722 0 : response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
723 0 : break;
724 : }
725 :
726 0 : unmap_ctx->count++;
727 :
728 0 : rc = spdk_bdev_unmap_blocks(desc, ch, lba, lba_count,
729 0 : nvmf_bdev_ctrlr_unmap_cpl, unmap_ctx);
730 0 : if (rc) {
731 0 : if (rc == -ENOMEM) {
732 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_bdev_ctrlr_unmap_resubmit, unmap_ctx);
733 : /* Unmap was not yet submitted to bdev */
734 : /* unmap_ctx->count will be decremented when the request is dequeued */
735 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
736 : }
737 0 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
738 0 : unmap_ctx->count--;
739 : /* We can't return here - we may have to wait for any other
740 : * unmaps already sent to complete */
741 0 : break;
742 : }
743 0 : unmap_ctx->range_index++;
744 0 : }
745 :
746 0 : if (unmap_ctx->count == 0) {
747 0 : free(unmap_ctx);
748 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
749 : }
750 :
751 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
752 0 : }
753 :
754 : int
755 0 : nvmf_bdev_ctrlr_dsm_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
756 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
757 : {
758 0 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
759 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
760 :
761 0 : if (cmd->cdw11_bits.dsm.ad) {
762 0 : return nvmf_bdev_ctrlr_unmap(bdev, desc, ch, req, NULL);
763 : }
764 :
765 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
766 0 : response->status.sc = SPDK_NVME_SC_SUCCESS;
767 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
768 0 : }
769 :
770 : int
771 5 : nvmf_bdev_ctrlr_copy_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
772 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
773 : {
774 5 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
775 5 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
776 5 : uint64_t sdlba = ((uint64_t)cmd->cdw11 << 32) + cmd->cdw10;
777 5 : struct spdk_nvme_scc_source_range range = { 0 };
778 : struct spdk_iov_xfer ix;
779 : int rc;
780 :
781 5 : SPDK_DEBUGLOG(nvmf, "Copy command: SDLBA %lu, NR %u, desc format %u, PRINFOR %u, "
782 : "DTYPE %u, STCW %u, PRINFOW %u, FUA %u, LR %u\n",
783 : sdlba,
784 : cmd->cdw12_bits.copy.nr,
785 : cmd->cdw12_bits.copy.df,
786 : cmd->cdw12_bits.copy.prinfor,
787 : cmd->cdw12_bits.copy.dtype,
788 : cmd->cdw12_bits.copy.stcw,
789 : cmd->cdw12_bits.copy.prinfow,
790 : cmd->cdw12_bits.copy.fua,
791 : cmd->cdw12_bits.copy.lr);
792 :
793 5 : if (spdk_unlikely(req->length != (cmd->cdw12_bits.copy.nr + 1) *
794 : sizeof(struct spdk_nvme_scc_source_range))) {
795 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
796 0 : response->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
797 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
798 : }
799 :
800 : /*
801 : * We support only one source range, and rely on this with the xfer
802 : * below.
803 : */
804 5 : if (cmd->cdw12_bits.copy.nr > 0) {
805 1 : response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
806 1 : response->status.sc = SPDK_NVME_SC_CMD_SIZE_LIMIT_SIZE_EXCEEDED;
807 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
808 : }
809 :
810 4 : if (cmd->cdw12_bits.copy.df != 0) {
811 1 : response->status.sct = SPDK_NVME_SCT_GENERIC;
812 1 : response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
813 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
814 : }
815 :
816 3 : spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
817 3 : spdk_iov_xfer_to_buf(&ix, &range, sizeof(range));
818 :
819 6 : rc = spdk_bdev_copy_blocks(desc, ch, sdlba, range.slba, range.nlb + 1,
820 3 : nvmf_bdev_ctrlr_complete_cmd, req);
821 3 : if (spdk_unlikely(rc)) {
822 1 : if (rc == -ENOMEM) {
823 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
824 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
825 : }
826 :
827 1 : response->status.sct = SPDK_NVME_SCT_GENERIC;
828 1 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
829 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
830 : }
831 :
832 2 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
833 5 : }
834 :
835 : int
836 4 : nvmf_bdev_ctrlr_nvme_passthru_io(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
837 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
838 : {
839 : int rc;
840 :
841 8 : rc = spdk_bdev_nvme_iov_passthru_md(desc, ch, &req->cmd->nvme_cmd, req->iov, req->iovcnt,
842 4 : req->length, NULL, 0, nvmf_bdev_ctrlr_complete_cmd, req);
843 :
844 4 : if (spdk_unlikely(rc)) {
845 2 : if (rc == -ENOMEM) {
846 1 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
847 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
848 : }
849 1 : req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
850 1 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
851 1 : req->rsp->nvme_cpl.status.dnr = 1;
852 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
853 : }
854 :
855 2 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
856 4 : }
857 :
858 : int
859 4 : spdk_nvmf_bdev_ctrlr_nvme_passthru_admin(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
860 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
861 : spdk_nvmf_nvme_passthru_cmd_cb cb_fn)
862 : {
863 : int rc;
864 :
865 4 : if (spdk_unlikely(req->iovcnt > 1)) {
866 0 : req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
867 0 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
868 0 : req->rsp->nvme_cpl.status.dnr = 1;
869 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
870 : }
871 :
872 4 : req->cmd_cb_fn = cb_fn;
873 :
874 8 : rc = spdk_bdev_nvme_admin_passthru(desc, ch, &req->cmd->nvme_cmd, req->iov[0].iov_base, req->length,
875 4 : nvmf_bdev_ctrlr_complete_admin_cmd, req);
876 4 : if (spdk_unlikely(rc)) {
877 2 : if (rc == -ENOMEM) {
878 1 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_admin_cmd_resubmit, req);
879 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
880 : }
881 1 : req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
882 1 : if (rc == -ENOTSUP) {
883 1 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
884 1 : } else {
885 0 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
886 : }
887 :
888 1 : req->rsp->nvme_cpl.status.dnr = 1;
889 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
890 : }
891 :
892 2 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
893 4 : }
894 :
895 : static void
896 0 : nvmf_bdev_ctrlr_complete_abort_cmd(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg)
897 : {
898 0 : struct spdk_nvmf_request *req = cb_arg;
899 :
900 0 : if (success) {
901 0 : req->rsp->nvme_cpl.cdw0 &= ~1U;
902 0 : }
903 :
904 0 : spdk_nvmf_request_complete(req);
905 0 : spdk_bdev_free_io(bdev_io);
906 0 : }
907 :
908 : int
909 0 : spdk_nvmf_bdev_ctrlr_abort_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
910 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
911 : struct spdk_nvmf_request *req_to_abort)
912 : {
913 : int rc;
914 :
915 0 : assert((req->rsp->nvme_cpl.cdw0 & 1U) != 0);
916 :
917 0 : rc = spdk_bdev_abort(desc, ch, req_to_abort, nvmf_bdev_ctrlr_complete_abort_cmd, req);
918 0 : if (spdk_likely(rc == 0)) {
919 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
920 0 : } else if (rc == -ENOMEM) {
921 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_admin_cmd_resubmit, req);
922 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
923 : } else {
924 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
925 : }
926 0 : }
927 :
928 : bool
929 2 : nvmf_bdev_ctrlr_get_dif_ctx(struct spdk_bdev_desc *desc, struct spdk_nvme_cmd *cmd,
930 : struct spdk_dif_ctx *dif_ctx)
931 : {
932 2 : uint32_t init_ref_tag, dif_check_flags = 0;
933 : int rc;
934 : struct spdk_dif_ctx_init_ext_opts dif_opts;
935 :
936 2 : if (spdk_bdev_desc_get_md_size(desc) == 0) {
937 1 : return false;
938 : }
939 :
940 : /* Initial Reference Tag is the lower 32 bits of the start LBA. */
941 1 : init_ref_tag = (uint32_t)from_le64(&cmd->cdw10);
942 :
943 1 : if (spdk_bdev_desc_is_dif_check_enabled(desc, SPDK_DIF_CHECK_TYPE_REFTAG)) {
944 0 : dif_check_flags |= SPDK_DIF_FLAGS_REFTAG_CHECK;
945 0 : }
946 :
947 1 : if (spdk_bdev_desc_is_dif_check_enabled(desc, SPDK_DIF_CHECK_TYPE_GUARD)) {
948 0 : dif_check_flags |= SPDK_DIF_FLAGS_GUARD_CHECK;
949 0 : }
950 :
951 1 : dif_opts.size = SPDK_SIZEOF(&dif_opts, dif_pi_format);
952 1 : dif_opts.dif_pi_format = SPDK_DIF_PI_FORMAT_16;
953 2 : rc = spdk_dif_ctx_init(dif_ctx,
954 1 : spdk_bdev_desc_get_block_size(desc),
955 1 : spdk_bdev_desc_get_md_size(desc),
956 1 : spdk_bdev_desc_is_md_interleaved(desc),
957 1 : spdk_bdev_desc_is_dif_head_of_md(desc),
958 1 : spdk_bdev_desc_get_dif_type(desc),
959 1 : dif_check_flags,
960 1 : init_ref_tag, 0, 0, 0, 0, &dif_opts);
961 :
962 1 : return (rc == 0) ? true : false;
963 2 : }
964 :
965 : static void
966 0 : nvmf_bdev_ctrlr_zcopy_start_complete(struct spdk_bdev_io *bdev_io, bool success,
967 : void *cb_arg)
968 : {
969 0 : struct spdk_nvmf_request *req = cb_arg;
970 : struct iovec *iov;
971 0 : int iovcnt = 0;
972 :
973 0 : if (spdk_unlikely(!success)) {
974 0 : int sc = 0, sct = 0;
975 0 : uint32_t cdw0 = 0;
976 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
977 0 : spdk_bdev_io_get_nvme_status(bdev_io, &cdw0, &sct, &sc);
978 :
979 0 : response->cdw0 = cdw0;
980 0 : response->status.sc = sc;
981 0 : response->status.sct = sct;
982 :
983 0 : spdk_bdev_free_io(bdev_io);
984 0 : spdk_nvmf_request_complete(req);
985 0 : return;
986 : }
987 :
988 0 : spdk_bdev_io_get_iovec(bdev_io, &iov, &iovcnt);
989 :
990 0 : assert(iovcnt <= NVMF_REQ_MAX_BUFFERS);
991 0 : assert(iovcnt > 0);
992 :
993 0 : req->iovcnt = iovcnt;
994 :
995 0 : assert(req->iov == iov);
996 :
997 0 : req->zcopy_bdev_io = bdev_io; /* Preserve the bdev_io for the end zcopy */
998 :
999 0 : spdk_nvmf_request_complete(req);
1000 : /* Don't free the bdev_io here as it is needed for the END ZCOPY */
1001 0 : }
1002 :
1003 : int
1004 3 : nvmf_bdev_ctrlr_zcopy_start(struct spdk_bdev *bdev,
1005 : struct spdk_bdev_desc *desc,
1006 : struct spdk_io_channel *ch,
1007 : struct spdk_nvmf_request *req)
1008 : {
1009 3 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
1010 3 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
1011 3 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
1012 : uint64_t start_lba;
1013 : uint64_t num_blocks;
1014 : int rc;
1015 :
1016 3 : nvmf_bdev_ctrlr_get_rw_params(&req->cmd->nvme_cmd, &start_lba, &num_blocks);
1017 :
1018 3 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
1019 1 : SPDK_ERRLOG("end of media\n");
1020 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
1021 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
1022 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
1023 : }
1024 :
1025 2 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
1026 1 : SPDK_ERRLOG("Read NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
1027 : num_blocks, block_size, req->length);
1028 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
1029 1 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
1030 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
1031 : }
1032 :
1033 1 : bool populate = (req->cmd->nvme_cmd.opc == SPDK_NVME_OPC_READ) ? true : false;
1034 :
1035 2 : rc = spdk_bdev_zcopy_start(desc, ch, req->iov, req->iovcnt, start_lba,
1036 1 : num_blocks, populate, nvmf_bdev_ctrlr_zcopy_start_complete, req);
1037 1 : if (spdk_unlikely(rc != 0)) {
1038 0 : if (rc == -ENOMEM) {
1039 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
1040 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
1041 : }
1042 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
1043 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
1044 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
1045 : }
1046 :
1047 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
1048 3 : }
1049 :
1050 : static void
1051 0 : nvmf_bdev_ctrlr_zcopy_end_complete(struct spdk_bdev_io *bdev_io, bool success,
1052 : void *cb_arg)
1053 : {
1054 0 : struct spdk_nvmf_request *req = cb_arg;
1055 :
1056 0 : if (spdk_unlikely(!success)) {
1057 0 : int sc = 0, sct = 0;
1058 0 : uint32_t cdw0 = 0;
1059 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
1060 0 : spdk_bdev_io_get_nvme_status(bdev_io, &cdw0, &sct, &sc);
1061 :
1062 0 : response->cdw0 = cdw0;
1063 0 : response->status.sc = sc;
1064 0 : response->status.sct = sct;
1065 0 : }
1066 :
1067 0 : spdk_bdev_free_io(bdev_io);
1068 0 : req->zcopy_bdev_io = NULL;
1069 0 : spdk_nvmf_request_complete(req);
1070 0 : }
1071 :
1072 : void
1073 0 : nvmf_bdev_ctrlr_zcopy_end(struct spdk_nvmf_request *req, bool commit)
1074 : {
1075 : int rc __attribute__((unused));
1076 :
1077 0 : rc = spdk_bdev_zcopy_end(req->zcopy_bdev_io, commit, nvmf_bdev_ctrlr_zcopy_end_complete, req);
1078 :
1079 : /* The only way spdk_bdev_zcopy_end() can fail is if we pass a bdev_io type that isn't ZCOPY */
1080 0 : assert(rc == 0);
1081 0 : }
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