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 :
146 1 : switch (spdk_bdev_get_dif_type(bdev)) {
147 : 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 : 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 : 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 : 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 1 : }
165 1 : } 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 2 : }
184 2 : nsdata->nmic.can_share = 1;
185 2 : if (nvmf_ns_is_ptpl_capable(ns)) {
186 2 : nsdata->nsrescap.rescap.persist = 1;
187 2 : }
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 2 : } 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 : case SPDK_DIF_PI_FORMAT_16:
237 0 : _16bpists = 0;
238 0 : sts = 0;
239 0 : break;
240 : case SPDK_DIF_PI_FORMAT_32:
241 0 : _16bpists = 1;
242 0 : sts = 16;
243 0 : break;
244 : case SPDK_DIF_PI_FORMAT_64:
245 0 : _16bpists = 1;
246 0 : sts = 0;
247 0 : break;
248 : 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 0 : }
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 3 : opts->dif_check_flags_exclude_mask = (~opts->nvme_cdw12.raw) & SPDK_NVME_IO_FLAGS_PRCHK_MASK;
290 3 : }
291 :
292 : static bool
293 27 : nvmf_bdev_ctrlr_lba_in_range(uint64_t bdev_num_blocks, uint64_t io_start_lba,
294 : uint64_t io_num_blocks)
295 : {
296 27 : if (io_start_lba + io_num_blocks > bdev_num_blocks ||
297 19 : io_start_lba + io_num_blocks < io_start_lba) {
298 10 : return false;
299 : }
300 :
301 17 : return true;
302 27 : }
303 :
304 : static void
305 0 : nvmf_ctrlr_process_io_cmd_resubmit(void *arg)
306 : {
307 0 : struct spdk_nvmf_request *req = arg;
308 : int rc;
309 :
310 0 : rc = nvmf_ctrlr_process_io_cmd(req);
311 0 : if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
312 0 : spdk_nvmf_request_complete(req);
313 0 : }
314 0 : }
315 :
316 : static void
317 0 : nvmf_ctrlr_process_admin_cmd_resubmit(void *arg)
318 : {
319 0 : struct spdk_nvmf_request *req = arg;
320 : int rc;
321 :
322 0 : rc = nvmf_ctrlr_process_admin_cmd(req);
323 0 : if (rc == SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
324 0 : spdk_nvmf_request_complete(req);
325 0 : }
326 0 : }
327 :
328 : static void
329 2 : nvmf_bdev_ctrl_queue_io(struct spdk_nvmf_request *req, struct spdk_bdev *bdev,
330 : struct spdk_io_channel *ch, spdk_bdev_io_wait_cb cb_fn, void *cb_arg)
331 : {
332 : int rc;
333 :
334 2 : req->bdev_io_wait.bdev = bdev;
335 2 : req->bdev_io_wait.cb_fn = cb_fn;
336 2 : req->bdev_io_wait.cb_arg = cb_arg;
337 :
338 2 : rc = spdk_bdev_queue_io_wait(bdev, ch, &req->bdev_io_wait);
339 2 : if (rc != 0) {
340 0 : assert(false);
341 : }
342 2 : req->qpair->group->stat.pending_bdev_io++;
343 2 : }
344 :
345 : bool
346 0 : nvmf_bdev_zcopy_enabled(struct spdk_bdev *bdev)
347 : {
348 0 : return spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_ZCOPY);
349 : }
350 :
351 : int
352 1 : nvmf_bdev_ctrlr_read_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
353 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
354 : {
355 4 : struct spdk_bdev_ext_io_opts opts = {
356 : .size = SPDK_SIZEOF(&opts, accel_sequence),
357 1 : .memory_domain = req->memory_domain,
358 1 : .memory_domain_ctx = req->memory_domain_ctx,
359 1 : .accel_sequence = req->accel_sequence,
360 : };
361 1 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
362 1 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
363 1 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
364 1 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
365 : uint64_t start_lba;
366 : uint64_t num_blocks;
367 : int rc;
368 :
369 1 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
370 1 : nvmf_bdev_ctrlr_get_rw_ext_params(cmd, &opts);
371 :
372 1 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
373 0 : SPDK_ERRLOG("end of media\n");
374 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
375 0 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
376 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
377 : }
378 :
379 1 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
380 0 : SPDK_ERRLOG("Read NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
381 : num_blocks, block_size, req->length);
382 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
383 0 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
384 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
385 : }
386 :
387 1 : assert(!spdk_nvmf_request_using_zcopy(req));
388 :
389 2 : rc = spdk_bdev_readv_blocks_ext(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks,
390 1 : nvmf_bdev_ctrlr_complete_cmd, req, &opts);
391 1 : if (spdk_unlikely(rc)) {
392 0 : if (rc == -ENOMEM) {
393 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
394 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
395 : }
396 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
397 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
398 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
399 : }
400 :
401 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
402 1 : }
403 :
404 : int
405 1 : nvmf_bdev_ctrlr_write_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
406 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
407 : {
408 4 : struct spdk_bdev_ext_io_opts opts = {
409 : .size = SPDK_SIZEOF(&opts, nvme_cdw13),
410 1 : .memory_domain = req->memory_domain,
411 1 : .memory_domain_ctx = req->memory_domain_ctx,
412 1 : .accel_sequence = req->accel_sequence,
413 : };
414 1 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
415 1 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
416 1 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
417 1 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
418 : uint64_t start_lba;
419 : uint64_t num_blocks;
420 : int rc;
421 :
422 1 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
423 1 : nvmf_bdev_ctrlr_get_rw_ext_params(cmd, &opts);
424 :
425 1 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
426 0 : SPDK_ERRLOG("end of media\n");
427 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
428 0 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
429 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
430 : }
431 :
432 1 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
433 0 : SPDK_ERRLOG("Write NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
434 : num_blocks, block_size, req->length);
435 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
436 0 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
437 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
438 : }
439 :
440 1 : assert(!spdk_nvmf_request_using_zcopy(req));
441 :
442 2 : rc = spdk_bdev_writev_blocks_ext(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks,
443 1 : nvmf_bdev_ctrlr_complete_cmd, req, &opts);
444 1 : if (spdk_unlikely(rc)) {
445 0 : if (rc == -ENOMEM) {
446 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
447 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
448 : }
449 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
450 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
451 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
452 : }
453 :
454 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
455 1 : }
456 :
457 : int
458 4 : nvmf_bdev_ctrlr_compare_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
459 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
460 : {
461 4 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
462 4 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
463 4 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
464 4 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
465 : uint64_t start_lba;
466 : uint64_t num_blocks;
467 : int rc;
468 :
469 4 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
470 :
471 4 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
472 1 : SPDK_ERRLOG("end of media\n");
473 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
474 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
475 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
476 : }
477 :
478 3 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
479 1 : SPDK_ERRLOG("Compare NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
480 : num_blocks, block_size, req->length);
481 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
482 1 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
483 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
484 : }
485 :
486 4 : rc = spdk_bdev_comparev_blocks(desc, ch, req->iov, req->iovcnt, start_lba, num_blocks,
487 2 : nvmf_bdev_ctrlr_complete_cmd, req);
488 2 : if (spdk_unlikely(rc)) {
489 1 : if (rc == -ENOMEM) {
490 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
491 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
492 : }
493 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
494 1 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
495 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
496 : }
497 :
498 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
499 4 : }
500 :
501 : int
502 4 : nvmf_bdev_ctrlr_compare_and_write_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
503 : struct spdk_io_channel *ch, struct spdk_nvmf_request *cmp_req, struct spdk_nvmf_request *write_req)
504 : {
505 4 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
506 4 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
507 4 : struct spdk_nvme_cmd *cmp_cmd = &cmp_req->cmd->nvme_cmd;
508 4 : struct spdk_nvme_cmd *write_cmd = &write_req->cmd->nvme_cmd;
509 4 : struct spdk_nvme_cpl *rsp = &write_req->rsp->nvme_cpl;
510 : uint64_t write_start_lba, cmp_start_lba;
511 : uint64_t write_num_blocks, cmp_num_blocks;
512 : int rc;
513 :
514 4 : nvmf_bdev_ctrlr_get_rw_params(cmp_cmd, &cmp_start_lba, &cmp_num_blocks);
515 4 : nvmf_bdev_ctrlr_get_rw_params(write_cmd, &write_start_lba, &write_num_blocks);
516 :
517 4 : if (spdk_unlikely(write_start_lba != cmp_start_lba || write_num_blocks != cmp_num_blocks)) {
518 1 : SPDK_ERRLOG("Fused command start lba / num blocks mismatch\n");
519 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
520 1 : rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
521 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
522 : }
523 :
524 3 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, write_start_lba,
525 : write_num_blocks))) {
526 1 : SPDK_ERRLOG("end of media\n");
527 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
528 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
529 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
530 : }
531 :
532 2 : if (spdk_unlikely(write_num_blocks * block_size > write_req->length)) {
533 1 : SPDK_ERRLOG("Write NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
534 : write_num_blocks, block_size, write_req->length);
535 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
536 1 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
537 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
538 : }
539 :
540 2 : rc = spdk_bdev_comparev_and_writev_blocks(desc, ch, cmp_req->iov, cmp_req->iovcnt, write_req->iov,
541 1 : write_req->iovcnt, write_start_lba, write_num_blocks, nvmf_bdev_ctrlr_complete_cmd, write_req);
542 1 : if (spdk_unlikely(rc)) {
543 0 : if (rc == -ENOMEM) {
544 0 : nvmf_bdev_ctrl_queue_io(cmp_req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, cmp_req);
545 0 : nvmf_bdev_ctrl_queue_io(write_req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, write_req);
546 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
547 : }
548 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
549 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
550 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
551 : }
552 :
553 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
554 4 : }
555 :
556 : int
557 4 : nvmf_bdev_ctrlr_write_zeroes_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
558 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
559 : {
560 4 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
561 4 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
562 4 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
563 4 : uint64_t max_write_zeroes_size = req->qpair->ctrlr->subsys->max_write_zeroes_size_kib;
564 : uint64_t start_lba;
565 : uint64_t num_blocks;
566 : int rc;
567 :
568 4 : nvmf_bdev_ctrlr_get_rw_params(cmd, &start_lba, &num_blocks);
569 4 : if (spdk_unlikely(max_write_zeroes_size > 0 &&
570 : num_blocks > (max_write_zeroes_size << 10) / spdk_bdev_desc_get_block_size(desc))) {
571 1 : SPDK_ERRLOG("invalid write zeroes size, should not exceed %" PRIu64 "Kib\n", max_write_zeroes_size);
572 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
573 1 : rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
574 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
575 : }
576 :
577 3 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
578 1 : SPDK_ERRLOG("end of media\n");
579 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
580 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
581 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
582 : }
583 :
584 2 : if (spdk_unlikely(cmd->cdw12_bits.write_zeroes.deac)) {
585 0 : SPDK_ERRLOG("Write Zeroes Deallocate is not supported\n");
586 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
587 0 : rsp->status.sc = SPDK_NVME_SC_INVALID_FIELD;
588 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
589 : }
590 :
591 4 : rc = spdk_bdev_write_zeroes_blocks(desc, ch, start_lba, num_blocks,
592 2 : nvmf_bdev_ctrlr_complete_cmd, req);
593 2 : if (spdk_unlikely(rc)) {
594 1 : if (rc == -ENOMEM) {
595 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
596 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
597 : }
598 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
599 1 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
600 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
601 : }
602 :
603 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
604 4 : }
605 :
606 : int
607 3 : nvmf_bdev_ctrlr_flush_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
608 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
609 : {
610 3 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
611 : int rc;
612 :
613 : /* As for NVMeoF controller, SPDK always set volatile write
614 : * cache bit to 1, return success for those block devices
615 : * which can't support FLUSH command.
616 : */
617 3 : if (!spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_FLUSH)) {
618 1 : response->status.sct = SPDK_NVME_SCT_GENERIC;
619 1 : response->status.sc = SPDK_NVME_SC_SUCCESS;
620 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
621 : }
622 :
623 4 : rc = spdk_bdev_flush_blocks(desc, ch, 0, spdk_bdev_get_num_blocks(bdev),
624 2 : nvmf_bdev_ctrlr_complete_cmd, req);
625 2 : if (spdk_unlikely(rc)) {
626 1 : if (rc == -ENOMEM) {
627 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
628 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
629 : }
630 1 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
631 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
632 : }
633 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
634 3 : }
635 :
636 : struct nvmf_bdev_ctrlr_unmap {
637 : struct spdk_nvmf_request *req;
638 : uint32_t count;
639 : struct spdk_bdev_desc *desc;
640 : struct spdk_bdev *bdev;
641 : struct spdk_io_channel *ch;
642 : uint32_t range_index;
643 : };
644 :
645 : static void
646 0 : nvmf_bdev_ctrlr_unmap_cpl(struct spdk_bdev_io *bdev_io, bool success,
647 : void *cb_arg)
648 : {
649 0 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx = cb_arg;
650 0 : struct spdk_nvmf_request *req = unmap_ctx->req;
651 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
652 : int sc, sct;
653 : uint32_t cdw0;
654 :
655 0 : unmap_ctx->count--;
656 :
657 0 : if (response->status.sct == SPDK_NVME_SCT_GENERIC &&
658 0 : response->status.sc == SPDK_NVME_SC_SUCCESS) {
659 0 : spdk_bdev_io_get_nvme_status(bdev_io, &cdw0, &sct, &sc);
660 0 : response->cdw0 = cdw0;
661 0 : response->status.sc = sc;
662 0 : response->status.sct = sct;
663 0 : }
664 :
665 0 : if (unmap_ctx->count == 0) {
666 0 : spdk_nvmf_request_complete(req);
667 0 : free(unmap_ctx);
668 0 : }
669 0 : spdk_bdev_free_io(bdev_io);
670 0 : }
671 :
672 : static int nvmf_bdev_ctrlr_unmap(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
673 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
674 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx);
675 : static void
676 0 : nvmf_bdev_ctrlr_unmap_resubmit(void *arg)
677 : {
678 0 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx = arg;
679 0 : struct spdk_nvmf_request *req = unmap_ctx->req;
680 0 : struct spdk_bdev_desc *desc = unmap_ctx->desc;
681 0 : struct spdk_bdev *bdev = unmap_ctx->bdev;
682 0 : struct spdk_io_channel *ch = unmap_ctx->ch;
683 :
684 0 : nvmf_bdev_ctrlr_unmap(bdev, desc, ch, req, unmap_ctx);
685 0 : }
686 :
687 : static int
688 0 : nvmf_bdev_ctrlr_unmap(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
689 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
690 : struct nvmf_bdev_ctrlr_unmap *unmap_ctx)
691 : {
692 : uint16_t nr, i;
693 0 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
694 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
695 0 : uint64_t max_discard_size = req->qpair->ctrlr->subsys->max_discard_size_kib;
696 0 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
697 : struct spdk_iov_xfer ix;
698 : uint64_t lba;
699 : uint32_t lba_count;
700 : int rc;
701 :
702 0 : nr = cmd->cdw10_bits.dsm.nr + 1;
703 0 : if (nr * sizeof(struct spdk_nvme_dsm_range) > req->length) {
704 0 : SPDK_ERRLOG("Dataset Management number of ranges > SGL length\n");
705 0 : response->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
706 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
707 : }
708 :
709 0 : if (unmap_ctx == NULL) {
710 0 : unmap_ctx = calloc(1, sizeof(*unmap_ctx));
711 0 : if (!unmap_ctx) {
712 0 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
713 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
714 : }
715 :
716 0 : unmap_ctx->req = req;
717 0 : unmap_ctx->desc = desc;
718 0 : unmap_ctx->ch = ch;
719 0 : unmap_ctx->bdev = bdev;
720 :
721 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
722 0 : response->status.sc = SPDK_NVME_SC_SUCCESS;
723 0 : } else {
724 0 : unmap_ctx->count--; /* dequeued */
725 : }
726 :
727 0 : spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
728 :
729 0 : for (i = unmap_ctx->range_index; i < nr; i++) {
730 0 : struct spdk_nvme_dsm_range dsm_range = { 0 };
731 :
732 0 : spdk_iov_xfer_to_buf(&ix, &dsm_range, sizeof(dsm_range));
733 :
734 0 : lba = dsm_range.starting_lba;
735 0 : lba_count = dsm_range.length;
736 0 : if (max_discard_size > 0 && lba_count > (max_discard_size << 10) / block_size) {
737 0 : SPDK_ERRLOG("invalid unmap size %" PRIu32 " blocks, should not exceed %" PRIu64 " blocks\n",
738 : lba_count, max_discard_size << 1);
739 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
740 0 : response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
741 0 : break;
742 : }
743 :
744 0 : unmap_ctx->count++;
745 :
746 0 : rc = spdk_bdev_unmap_blocks(desc, ch, lba, lba_count,
747 0 : nvmf_bdev_ctrlr_unmap_cpl, unmap_ctx);
748 0 : if (rc) {
749 0 : if (rc == -ENOMEM) {
750 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_bdev_ctrlr_unmap_resubmit, unmap_ctx);
751 : /* Unmap was not yet submitted to bdev */
752 : /* unmap_ctx->count will be decremented when the request is dequeued */
753 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
754 : }
755 0 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
756 0 : unmap_ctx->count--;
757 : /* We can't return here - we may have to wait for any other
758 : * unmaps already sent to complete */
759 0 : break;
760 : }
761 0 : unmap_ctx->range_index++;
762 0 : }
763 :
764 0 : if (unmap_ctx->count == 0) {
765 0 : free(unmap_ctx);
766 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
767 : }
768 :
769 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
770 0 : }
771 :
772 : int
773 0 : nvmf_bdev_ctrlr_dsm_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
774 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
775 : {
776 0 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
777 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
778 :
779 0 : if (cmd->cdw11_bits.dsm.ad) {
780 0 : return nvmf_bdev_ctrlr_unmap(bdev, desc, ch, req, NULL);
781 : }
782 :
783 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
784 0 : response->status.sc = SPDK_NVME_SC_SUCCESS;
785 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
786 0 : }
787 :
788 : int
789 5 : nvmf_bdev_ctrlr_copy_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
790 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
791 : {
792 5 : struct spdk_nvme_cmd *cmd = &req->cmd->nvme_cmd;
793 5 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
794 5 : uint64_t sdlba = ((uint64_t)cmd->cdw11 << 32) + cmd->cdw10;
795 5 : struct spdk_nvme_scc_source_range range = { 0 };
796 : struct spdk_iov_xfer ix;
797 : int rc;
798 :
799 5 : SPDK_DEBUGLOG(nvmf, "Copy command: SDLBA %lu, NR %u, desc format %u, PRINFOR %u, "
800 : "DTYPE %u, STCW %u, PRINFOW %u, FUA %u, LR %u\n",
801 : sdlba,
802 : cmd->cdw12_bits.copy.nr,
803 : cmd->cdw12_bits.copy.df,
804 : cmd->cdw12_bits.copy.prinfor,
805 : cmd->cdw12_bits.copy.dtype,
806 : cmd->cdw12_bits.copy.stcw,
807 : cmd->cdw12_bits.copy.prinfow,
808 : cmd->cdw12_bits.copy.fua,
809 : cmd->cdw12_bits.copy.lr);
810 :
811 5 : if (spdk_unlikely(req->length != (cmd->cdw12_bits.copy.nr + 1) *
812 : sizeof(struct spdk_nvme_scc_source_range))) {
813 0 : response->status.sct = SPDK_NVME_SCT_GENERIC;
814 0 : response->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
815 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
816 : }
817 :
818 : /*
819 : * We support only one source range, and rely on this with the xfer
820 : * below.
821 : */
822 5 : if (cmd->cdw12_bits.copy.nr > 0) {
823 1 : response->status.sct = SPDK_NVME_SCT_COMMAND_SPECIFIC;
824 1 : response->status.sc = SPDK_NVME_SC_CMD_SIZE_LIMIT_SIZE_EXCEEDED;
825 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
826 : }
827 :
828 4 : if (cmd->cdw12_bits.copy.df != 0) {
829 1 : response->status.sct = SPDK_NVME_SCT_GENERIC;
830 1 : response->status.sc = SPDK_NVME_SC_INVALID_FIELD;
831 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
832 : }
833 :
834 3 : spdk_iov_xfer_init(&ix, req->iov, req->iovcnt);
835 3 : spdk_iov_xfer_to_buf(&ix, &range, sizeof(range));
836 :
837 6 : rc = spdk_bdev_copy_blocks(desc, ch, sdlba, range.slba, range.nlb + 1,
838 3 : nvmf_bdev_ctrlr_complete_cmd, req);
839 3 : if (spdk_unlikely(rc)) {
840 1 : if (rc == -ENOMEM) {
841 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
842 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
843 : }
844 :
845 1 : response->status.sct = SPDK_NVME_SCT_GENERIC;
846 1 : response->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
847 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
848 : }
849 :
850 2 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
851 5 : }
852 :
853 : int
854 4 : nvmf_bdev_ctrlr_nvme_passthru_io(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
855 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req)
856 : {
857 : int rc;
858 :
859 8 : rc = spdk_bdev_nvme_iov_passthru_md(desc, ch, &req->cmd->nvme_cmd, req->iov, req->iovcnt,
860 4 : req->length, NULL, 0, nvmf_bdev_ctrlr_complete_cmd, req);
861 :
862 4 : if (spdk_unlikely(rc)) {
863 2 : if (rc == -ENOMEM) {
864 1 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
865 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
866 : }
867 1 : req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
868 1 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
869 1 : req->rsp->nvme_cpl.status.dnr = 1;
870 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
871 : }
872 :
873 2 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
874 4 : }
875 :
876 : int
877 4 : spdk_nvmf_bdev_ctrlr_nvme_passthru_admin(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
878 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
879 : spdk_nvmf_nvme_passthru_cmd_cb cb_fn)
880 : {
881 : int rc;
882 :
883 4 : if (spdk_unlikely(req->iovcnt > 1)) {
884 0 : req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
885 0 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
886 0 : req->rsp->nvme_cpl.status.dnr = 1;
887 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
888 : }
889 :
890 4 : req->cmd_cb_fn = cb_fn;
891 :
892 8 : rc = spdk_bdev_nvme_admin_passthru(desc, ch, &req->cmd->nvme_cmd, req->iov[0].iov_base, req->length,
893 4 : nvmf_bdev_ctrlr_complete_admin_cmd, req);
894 4 : if (spdk_unlikely(rc)) {
895 2 : if (rc == -ENOMEM) {
896 1 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_admin_cmd_resubmit, req);
897 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
898 : }
899 1 : req->rsp->nvme_cpl.status.sct = SPDK_NVME_SCT_GENERIC;
900 1 : if (rc == -ENOTSUP) {
901 1 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INVALID_OPCODE;
902 1 : } else {
903 0 : req->rsp->nvme_cpl.status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
904 : }
905 :
906 1 : req->rsp->nvme_cpl.status.dnr = 1;
907 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
908 : }
909 :
910 2 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
911 4 : }
912 :
913 : static void
914 0 : nvmf_bdev_ctrlr_complete_abort_cmd(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg)
915 : {
916 0 : struct spdk_nvmf_request *req = cb_arg;
917 :
918 0 : if (success) {
919 0 : req->rsp->nvme_cpl.cdw0 &= ~1U;
920 0 : }
921 :
922 0 : spdk_nvmf_request_complete(req);
923 0 : spdk_bdev_free_io(bdev_io);
924 0 : }
925 :
926 : int
927 0 : spdk_nvmf_bdev_ctrlr_abort_cmd(struct spdk_bdev *bdev, struct spdk_bdev_desc *desc,
928 : struct spdk_io_channel *ch, struct spdk_nvmf_request *req,
929 : struct spdk_nvmf_request *req_to_abort)
930 : {
931 : int rc;
932 :
933 0 : assert((req->rsp->nvme_cpl.cdw0 & 1U) != 0);
934 :
935 0 : rc = spdk_bdev_abort(desc, ch, req_to_abort, nvmf_bdev_ctrlr_complete_abort_cmd, req);
936 0 : if (spdk_likely(rc == 0)) {
937 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
938 0 : } else if (rc == -ENOMEM) {
939 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_admin_cmd_resubmit, req);
940 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
941 : } else {
942 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
943 : }
944 0 : }
945 :
946 : bool
947 2 : nvmf_bdev_ctrlr_get_dif_ctx(struct spdk_bdev_desc *desc, struct spdk_nvme_cmd *cmd,
948 : struct spdk_dif_ctx *dif_ctx)
949 : {
950 2 : uint32_t init_ref_tag, dif_check_flags = 0;
951 : int rc;
952 : struct spdk_dif_ctx_init_ext_opts dif_opts;
953 :
954 2 : if (spdk_bdev_desc_get_md_size(desc) == 0) {
955 1 : return false;
956 : }
957 :
958 : /* Initial Reference Tag is the lower 32 bits of the start LBA. */
959 1 : init_ref_tag = (uint32_t)from_le64(&cmd->cdw10);
960 :
961 1 : if (spdk_bdev_desc_is_dif_check_enabled(desc, SPDK_DIF_CHECK_TYPE_REFTAG)) {
962 0 : dif_check_flags |= SPDK_DIF_FLAGS_REFTAG_CHECK;
963 0 : }
964 :
965 1 : if (spdk_bdev_desc_is_dif_check_enabled(desc, SPDK_DIF_CHECK_TYPE_GUARD)) {
966 0 : dif_check_flags |= SPDK_DIF_FLAGS_GUARD_CHECK;
967 0 : }
968 :
969 1 : dif_opts.size = SPDK_SIZEOF(&dif_opts, dif_pi_format);
970 1 : dif_opts.dif_pi_format = SPDK_DIF_PI_FORMAT_16;
971 2 : rc = spdk_dif_ctx_init(dif_ctx,
972 1 : spdk_bdev_desc_get_block_size(desc),
973 1 : spdk_bdev_desc_get_md_size(desc),
974 1 : spdk_bdev_desc_is_md_interleaved(desc),
975 1 : spdk_bdev_desc_is_dif_head_of_md(desc),
976 1 : spdk_bdev_desc_get_dif_type(desc),
977 1 : dif_check_flags,
978 1 : init_ref_tag, 0, 0, 0, 0, &dif_opts);
979 :
980 1 : return (rc == 0) ? true : false;
981 2 : }
982 :
983 : static void
984 0 : nvmf_bdev_ctrlr_zcopy_start_complete(struct spdk_bdev_io *bdev_io, bool success,
985 : void *cb_arg)
986 : {
987 0 : struct spdk_nvmf_request *req = cb_arg;
988 : struct iovec *iov;
989 0 : int iovcnt = 0;
990 :
991 0 : if (spdk_unlikely(!success)) {
992 0 : int sc = 0, sct = 0;
993 0 : uint32_t cdw0 = 0;
994 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
995 0 : spdk_bdev_io_get_nvme_status(bdev_io, &cdw0, &sct, &sc);
996 :
997 0 : response->cdw0 = cdw0;
998 0 : response->status.sc = sc;
999 0 : response->status.sct = sct;
1000 :
1001 0 : spdk_bdev_free_io(bdev_io);
1002 0 : spdk_nvmf_request_complete(req);
1003 0 : return;
1004 : }
1005 :
1006 0 : spdk_bdev_io_get_iovec(bdev_io, &iov, &iovcnt);
1007 :
1008 0 : assert(iovcnt <= NVMF_REQ_MAX_BUFFERS);
1009 0 : assert(iovcnt > 0);
1010 :
1011 0 : req->iovcnt = iovcnt;
1012 :
1013 0 : assert(req->iov == iov);
1014 :
1015 0 : req->zcopy_bdev_io = bdev_io; /* Preserve the bdev_io for the end zcopy */
1016 :
1017 0 : spdk_nvmf_request_complete(req);
1018 : /* Don't free the bdev_io here as it is needed for the END ZCOPY */
1019 0 : }
1020 :
1021 : int
1022 3 : nvmf_bdev_ctrlr_zcopy_start(struct spdk_bdev *bdev,
1023 : struct spdk_bdev_desc *desc,
1024 : struct spdk_io_channel *ch,
1025 : struct spdk_nvmf_request *req)
1026 : {
1027 3 : struct spdk_nvme_cpl *rsp = &req->rsp->nvme_cpl;
1028 3 : uint64_t bdev_num_blocks = spdk_bdev_get_num_blocks(bdev);
1029 3 : uint32_t block_size = spdk_bdev_desc_get_block_size(desc);
1030 : uint64_t start_lba;
1031 : uint64_t num_blocks;
1032 : int rc;
1033 :
1034 3 : nvmf_bdev_ctrlr_get_rw_params(&req->cmd->nvme_cmd, &start_lba, &num_blocks);
1035 :
1036 3 : if (spdk_unlikely(!nvmf_bdev_ctrlr_lba_in_range(bdev_num_blocks, start_lba, num_blocks))) {
1037 1 : SPDK_ERRLOG("end of media\n");
1038 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
1039 1 : rsp->status.sc = SPDK_NVME_SC_LBA_OUT_OF_RANGE;
1040 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
1041 : }
1042 :
1043 2 : if (spdk_unlikely(num_blocks * block_size > req->length)) {
1044 1 : SPDK_ERRLOG("Read NLB %" PRIu64 " * block size %" PRIu32 " > SGL length %" PRIu32 "\n",
1045 : num_blocks, block_size, req->length);
1046 1 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
1047 1 : rsp->status.sc = SPDK_NVME_SC_DATA_SGL_LENGTH_INVALID;
1048 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
1049 : }
1050 :
1051 1 : bool populate = (req->cmd->nvme_cmd.opc == SPDK_NVME_OPC_READ) ? true : false;
1052 :
1053 2 : rc = spdk_bdev_zcopy_start(desc, ch, req->iov, req->iovcnt, start_lba,
1054 1 : num_blocks, populate, nvmf_bdev_ctrlr_zcopy_start_complete, req);
1055 1 : if (spdk_unlikely(rc != 0)) {
1056 0 : if (rc == -ENOMEM) {
1057 0 : nvmf_bdev_ctrl_queue_io(req, bdev, ch, nvmf_ctrlr_process_io_cmd_resubmit, req);
1058 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
1059 : }
1060 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
1061 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
1062 0 : return SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE;
1063 : }
1064 :
1065 1 : return SPDK_NVMF_REQUEST_EXEC_STATUS_ASYNCHRONOUS;
1066 3 : }
1067 :
1068 : static void
1069 0 : nvmf_bdev_ctrlr_zcopy_end_complete(struct spdk_bdev_io *bdev_io, bool success,
1070 : void *cb_arg)
1071 : {
1072 0 : struct spdk_nvmf_request *req = cb_arg;
1073 :
1074 0 : if (spdk_unlikely(!success)) {
1075 0 : int sc = 0, sct = 0;
1076 0 : uint32_t cdw0 = 0;
1077 0 : struct spdk_nvme_cpl *response = &req->rsp->nvme_cpl;
1078 0 : spdk_bdev_io_get_nvme_status(bdev_io, &cdw0, &sct, &sc);
1079 :
1080 0 : response->cdw0 = cdw0;
1081 0 : response->status.sc = sc;
1082 0 : response->status.sct = sct;
1083 0 : }
1084 :
1085 0 : spdk_bdev_free_io(bdev_io);
1086 0 : req->zcopy_bdev_io = NULL;
1087 0 : spdk_nvmf_request_complete(req);
1088 0 : }
1089 :
1090 : void
1091 0 : nvmf_bdev_ctrlr_zcopy_end(struct spdk_nvmf_request *req, bool commit)
1092 : {
1093 : int rc __attribute__((unused));
1094 :
1095 0 : rc = spdk_bdev_zcopy_end(req->zcopy_bdev_io, commit, nvmf_bdev_ctrlr_zcopy_end_complete, req);
1096 :
1097 : /* The only way spdk_bdev_zcopy_end() can fail is if we pass a bdev_io type that isn't ZCOPY */
1098 0 : assert(rc == 0);
1099 0 : }
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