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11fdf7f2 TL |
1 | /*- |
2 | * BSD LICENSE | |
3 | * | |
4 | * Copyright (c) Intel Corporation. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * * Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * * Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in | |
15 | * the documentation and/or other materials provided with the | |
16 | * distribution. | |
17 | * * Neither the name of Intel Corporation nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
24 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
25 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
26 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
27 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #include "spdk/stdinc.h" | |
35 | ||
36 | #include "bdev_nvme.h" | |
9f95a23c | 37 | #include "common.h" |
11fdf7f2 TL |
38 | |
39 | #include "spdk/config.h" | |
40 | #include "spdk/conf.h" | |
41 | #include "spdk/endian.h" | |
42 | #include "spdk/bdev.h" | |
43 | #include "spdk/json.h" | |
44 | #include "spdk/nvme.h" | |
9f95a23c | 45 | #include "spdk/nvme_ocssd.h" |
11fdf7f2 TL |
46 | #include "spdk/thread.h" |
47 | #include "spdk/string.h" | |
48 | #include "spdk/likely.h" | |
49 | #include "spdk/util.h" | |
50 | ||
51 | #include "spdk/bdev_module.h" | |
52 | #include "spdk_internal/log.h" | |
53 | ||
54 | static void bdev_nvme_get_spdk_running_config(FILE *fp); | |
55 | static int bdev_nvme_config_json(struct spdk_json_write_ctx *w); | |
56 | ||
57 | struct nvme_io_channel { | |
58 | struct spdk_nvme_qpair *qpair; | |
59 | struct spdk_poller *poller; | |
60 | ||
61 | bool collect_spin_stat; | |
62 | uint64_t spin_ticks; | |
63 | uint64_t start_ticks; | |
64 | uint64_t end_ticks; | |
65 | }; | |
66 | ||
67 | struct nvme_bdev_io { | |
68 | /** array of iovecs to transfer. */ | |
69 | struct iovec *iovs; | |
70 | ||
71 | /** Number of iovecs in iovs array. */ | |
72 | int iovcnt; | |
73 | ||
74 | /** Current iovec position. */ | |
75 | int iovpos; | |
76 | ||
77 | /** Offset in current iovec. */ | |
78 | uint32_t iov_offset; | |
79 | ||
9f95a23c | 80 | /** Saved status for admin passthru completion event or PI error verification. */ |
11fdf7f2 TL |
81 | struct spdk_nvme_cpl cpl; |
82 | ||
83 | /** Originating thread */ | |
84 | struct spdk_thread *orig_thread; | |
85 | }; | |
86 | ||
11fdf7f2 TL |
87 | struct nvme_probe_ctx { |
88 | size_t count; | |
89 | struct spdk_nvme_transport_id trids[NVME_MAX_CONTROLLERS]; | |
9f95a23c | 90 | struct spdk_nvme_host_id hostids[NVME_MAX_CONTROLLERS]; |
11fdf7f2 | 91 | const char *names[NVME_MAX_CONTROLLERS]; |
9f95a23c | 92 | uint32_t prchk_flags[NVME_MAX_CONTROLLERS]; |
11fdf7f2 TL |
93 | const char *hostnqn; |
94 | }; | |
95 | ||
9f95a23c TL |
96 | struct nvme_probe_skip_entry { |
97 | struct spdk_nvme_transport_id trid; | |
98 | TAILQ_ENTRY(nvme_probe_skip_entry) tailq; | |
99 | }; | |
100 | /* All the controllers deleted by users via RPC are skipped by hotplug monitor */ | |
101 | static TAILQ_HEAD(, nvme_probe_skip_entry) g_skipped_nvme_ctrlrs = TAILQ_HEAD_INITIALIZER( | |
102 | g_skipped_nvme_ctrlrs); | |
103 | ||
11fdf7f2 TL |
104 | static struct spdk_bdev_nvme_opts g_opts = { |
105 | .action_on_timeout = SPDK_BDEV_NVME_TIMEOUT_ACTION_NONE, | |
106 | .timeout_us = 0, | |
107 | .retry_count = SPDK_NVME_DEFAULT_RETRY_COUNT, | |
108 | .nvme_adminq_poll_period_us = 1000000ULL, | |
9f95a23c | 109 | .nvme_ioq_poll_period_us = 0, |
11fdf7f2 TL |
110 | }; |
111 | ||
112 | #define NVME_HOTPLUG_POLL_PERIOD_MAX 10000000ULL | |
113 | #define NVME_HOTPLUG_POLL_PERIOD_DEFAULT 100000ULL | |
114 | ||
115 | static int g_hot_insert_nvme_controller_index = 0; | |
116 | static uint64_t g_nvme_hotplug_poll_period_us = NVME_HOTPLUG_POLL_PERIOD_DEFAULT; | |
117 | static bool g_nvme_hotplug_enabled = false; | |
118 | static struct spdk_thread *g_bdev_nvme_init_thread; | |
119 | static struct spdk_poller *g_hotplug_poller; | |
9f95a23c | 120 | static struct spdk_nvme_probe_ctx *g_hotplug_probe_ctx; |
11fdf7f2 | 121 | static char *g_nvme_hostnqn = NULL; |
11fdf7f2 | 122 | |
9f95a23c | 123 | static void nvme_ctrlr_create_bdevs(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr); |
11fdf7f2 TL |
124 | static int bdev_nvme_library_init(void); |
125 | static void bdev_nvme_library_fini(void); | |
9f95a23c TL |
126 | static int bdev_nvme_readv(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, |
127 | struct nvme_bdev_io *bio, | |
128 | struct iovec *iov, int iovcnt, void *md, uint64_t lba_count, uint64_t lba); | |
129 | static int bdev_nvme_no_pi_readv(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
130 | struct nvme_bdev_io *bio, | |
131 | struct iovec *iov, int iovcnt, void *md, uint64_t lba_count, uint64_t lba); | |
132 | static int bdev_nvme_writev(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
133 | struct nvme_bdev_io *bio, | |
134 | struct iovec *iov, int iovcnt, void *md, uint64_t lba_count, uint64_t lba); | |
11fdf7f2 TL |
135 | static int bdev_nvme_admin_passthru(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, |
136 | struct nvme_bdev_io *bio, | |
137 | struct spdk_nvme_cmd *cmd, void *buf, size_t nbytes); | |
138 | static int bdev_nvme_io_passthru(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
139 | struct nvme_bdev_io *bio, | |
140 | struct spdk_nvme_cmd *cmd, void *buf, size_t nbytes); | |
141 | static int bdev_nvme_io_passthru_md(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
142 | struct nvme_bdev_io *bio, | |
143 | struct spdk_nvme_cmd *cmd, void *buf, size_t nbytes, void *md_buf, size_t md_len); | |
9f95a23c | 144 | static int nvme_ctrlr_create_bdev(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr, uint32_t nsid); |
11fdf7f2 TL |
145 | |
146 | struct spdk_nvme_qpair * | |
147 | spdk_bdev_nvme_get_io_qpair(struct spdk_io_channel *ctrlr_io_ch) | |
148 | { | |
149 | struct nvme_io_channel *nvme_ch; | |
150 | ||
151 | nvme_ch = spdk_io_channel_get_ctx(ctrlr_io_ch); | |
152 | ||
153 | return nvme_ch->qpair; | |
154 | } | |
155 | ||
11fdf7f2 TL |
156 | static int |
157 | bdev_nvme_get_ctx_size(void) | |
158 | { | |
159 | return sizeof(struct nvme_bdev_io); | |
160 | } | |
161 | ||
162 | static struct spdk_bdev_module nvme_if = { | |
163 | .name = "nvme", | |
164 | .module_init = bdev_nvme_library_init, | |
165 | .module_fini = bdev_nvme_library_fini, | |
166 | .config_text = bdev_nvme_get_spdk_running_config, | |
167 | .config_json = bdev_nvme_config_json, | |
168 | .get_ctx_size = bdev_nvme_get_ctx_size, | |
169 | ||
170 | }; | |
9f95a23c | 171 | SPDK_BDEV_MODULE_REGISTER(nvme, &nvme_if) |
11fdf7f2 TL |
172 | |
173 | static int | |
174 | bdev_nvme_poll(void *arg) | |
175 | { | |
176 | struct nvme_io_channel *ch = arg; | |
177 | int32_t num_completions; | |
178 | ||
179 | if (ch->qpair == NULL) { | |
180 | return -1; | |
181 | } | |
182 | ||
183 | if (ch->collect_spin_stat && ch->start_ticks == 0) { | |
184 | ch->start_ticks = spdk_get_ticks(); | |
185 | } | |
186 | ||
187 | num_completions = spdk_nvme_qpair_process_completions(ch->qpair, 0); | |
188 | ||
189 | if (ch->collect_spin_stat) { | |
190 | if (num_completions > 0) { | |
191 | if (ch->end_ticks != 0) { | |
192 | ch->spin_ticks += (ch->end_ticks - ch->start_ticks); | |
193 | ch->end_ticks = 0; | |
194 | } | |
195 | ch->start_ticks = 0; | |
196 | } else { | |
197 | ch->end_ticks = spdk_get_ticks(); | |
198 | } | |
199 | } | |
200 | ||
201 | return num_completions; | |
202 | } | |
203 | ||
204 | static int | |
205 | bdev_nvme_poll_adminq(void *arg) | |
206 | { | |
207 | struct spdk_nvme_ctrlr *ctrlr = arg; | |
208 | ||
209 | return spdk_nvme_ctrlr_process_admin_completions(ctrlr); | |
210 | } | |
211 | ||
212 | static void | |
213 | bdev_nvme_unregister_cb(void *io_device) | |
214 | { | |
215 | struct spdk_nvme_ctrlr *ctrlr = io_device; | |
216 | ||
217 | spdk_nvme_detach(ctrlr); | |
218 | } | |
219 | ||
9f95a23c TL |
220 | static void |
221 | bdev_nvme_ctrlr_destruct(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr) | |
222 | { | |
223 | assert(nvme_bdev_ctrlr->destruct); | |
224 | pthread_mutex_lock(&g_bdev_nvme_mutex); | |
225 | TAILQ_REMOVE(&g_nvme_bdev_ctrlrs, nvme_bdev_ctrlr, tailq); | |
226 | pthread_mutex_unlock(&g_bdev_nvme_mutex); | |
227 | spdk_io_device_unregister(nvme_bdev_ctrlr->ctrlr, bdev_nvme_unregister_cb); | |
228 | spdk_poller_unregister(&nvme_bdev_ctrlr->adminq_timer_poller); | |
229 | free(nvme_bdev_ctrlr->name); | |
230 | free(nvme_bdev_ctrlr->bdevs); | |
231 | free(nvme_bdev_ctrlr); | |
232 | } | |
233 | ||
11fdf7f2 TL |
234 | static int |
235 | bdev_nvme_destruct(void *ctx) | |
236 | { | |
237 | struct nvme_bdev *nvme_disk = ctx; | |
9f95a23c | 238 | struct nvme_bdev_ctrlr *nvme_bdev_ctrlr = nvme_disk->nvme_bdev_ctrlr; |
11fdf7f2 TL |
239 | |
240 | pthread_mutex_lock(&g_bdev_nvme_mutex); | |
9f95a23c | 241 | nvme_bdev_ctrlr->ref--; |
11fdf7f2 | 242 | free(nvme_disk->disk.name); |
9f95a23c TL |
243 | nvme_disk->active = false; |
244 | if (nvme_bdev_ctrlr->ref == 0 && nvme_bdev_ctrlr->destruct) { | |
11fdf7f2 | 245 | pthread_mutex_unlock(&g_bdev_nvme_mutex); |
9f95a23c | 246 | bdev_nvme_ctrlr_destruct(nvme_bdev_ctrlr); |
11fdf7f2 TL |
247 | return 0; |
248 | } | |
249 | ||
250 | pthread_mutex_unlock(&g_bdev_nvme_mutex); | |
251 | return 0; | |
11fdf7f2 TL |
252 | } |
253 | ||
254 | static int | |
255 | bdev_nvme_flush(struct nvme_bdev *nbdev, struct nvme_bdev_io *bio, | |
256 | uint64_t offset, uint64_t nbytes) | |
257 | { | |
258 | spdk_bdev_io_complete(spdk_bdev_io_from_ctx(bio), SPDK_BDEV_IO_STATUS_SUCCESS); | |
259 | ||
260 | return 0; | |
261 | } | |
262 | ||
263 | static void | |
264 | _bdev_nvme_reset_done(struct spdk_io_channel_iter *i, int status) | |
265 | { | |
266 | void *ctx = spdk_io_channel_iter_get_ctx(i); | |
267 | int rc = SPDK_BDEV_IO_STATUS_SUCCESS; | |
268 | ||
269 | if (status) { | |
270 | rc = SPDK_BDEV_IO_STATUS_FAILED; | |
271 | } | |
272 | spdk_bdev_io_complete(spdk_bdev_io_from_ctx(ctx), rc); | |
273 | } | |
274 | ||
275 | static void | |
276 | _bdev_nvme_reset_create_qpair(struct spdk_io_channel_iter *i) | |
277 | { | |
278 | struct spdk_nvme_ctrlr *ctrlr = spdk_io_channel_iter_get_io_device(i); | |
279 | struct spdk_io_channel *_ch = spdk_io_channel_iter_get_channel(i); | |
280 | struct nvme_io_channel *nvme_ch = spdk_io_channel_get_ctx(_ch); | |
9f95a23c | 281 | struct spdk_nvme_io_qpair_opts opts; |
11fdf7f2 | 282 | |
9f95a23c TL |
283 | spdk_nvme_ctrlr_get_default_io_qpair_opts(ctrlr, &opts, sizeof(opts)); |
284 | opts.delay_pcie_doorbell = true; | |
285 | ||
286 | nvme_ch->qpair = spdk_nvme_ctrlr_alloc_io_qpair(ctrlr, &opts, sizeof(opts)); | |
11fdf7f2 TL |
287 | if (!nvme_ch->qpair) { |
288 | spdk_for_each_channel_continue(i, -1); | |
289 | return; | |
290 | } | |
291 | ||
292 | spdk_for_each_channel_continue(i, 0); | |
293 | } | |
294 | ||
295 | static void | |
296 | _bdev_nvme_reset(struct spdk_io_channel_iter *i, int status) | |
297 | { | |
298 | struct spdk_nvme_ctrlr *ctrlr = spdk_io_channel_iter_get_io_device(i); | |
299 | struct nvme_bdev_io *bio = spdk_io_channel_iter_get_ctx(i); | |
300 | int rc; | |
301 | ||
302 | if (status) { | |
303 | spdk_bdev_io_complete(spdk_bdev_io_from_ctx(bio), SPDK_BDEV_IO_STATUS_FAILED); | |
304 | return; | |
305 | } | |
306 | ||
307 | rc = spdk_nvme_ctrlr_reset(ctrlr); | |
308 | if (rc != 0) { | |
309 | spdk_bdev_io_complete(spdk_bdev_io_from_ctx(bio), SPDK_BDEV_IO_STATUS_FAILED); | |
310 | return; | |
311 | } | |
312 | ||
313 | /* Recreate all of the I/O queue pairs */ | |
314 | spdk_for_each_channel(ctrlr, | |
315 | _bdev_nvme_reset_create_qpair, | |
316 | bio, | |
317 | _bdev_nvme_reset_done); | |
318 | ||
319 | ||
320 | } | |
321 | ||
322 | static void | |
323 | _bdev_nvme_reset_destroy_qpair(struct spdk_io_channel_iter *i) | |
324 | { | |
325 | struct spdk_io_channel *ch = spdk_io_channel_iter_get_channel(i); | |
326 | struct nvme_io_channel *nvme_ch = spdk_io_channel_get_ctx(ch); | |
327 | int rc; | |
328 | ||
329 | rc = spdk_nvme_ctrlr_free_io_qpair(nvme_ch->qpair); | |
330 | if (!rc) { | |
331 | nvme_ch->qpair = NULL; | |
332 | } | |
333 | ||
334 | spdk_for_each_channel_continue(i, rc); | |
335 | } | |
336 | ||
337 | static int | |
338 | bdev_nvme_reset(struct nvme_bdev *nbdev, struct nvme_bdev_io *bio) | |
339 | { | |
340 | /* First, delete all NVMe I/O queue pairs. */ | |
9f95a23c | 341 | spdk_for_each_channel(nbdev->nvme_bdev_ctrlr->ctrlr, |
11fdf7f2 TL |
342 | _bdev_nvme_reset_destroy_qpair, |
343 | bio, | |
344 | _bdev_nvme_reset); | |
345 | ||
346 | return 0; | |
347 | } | |
348 | ||
349 | static int | |
350 | bdev_nvme_unmap(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
351 | struct nvme_bdev_io *bio, | |
352 | uint64_t offset_blocks, | |
353 | uint64_t num_blocks); | |
354 | ||
355 | static void | |
9f95a23c TL |
356 | bdev_nvme_get_buf_cb(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io, |
357 | bool success) | |
11fdf7f2 TL |
358 | { |
359 | int ret; | |
360 | ||
9f95a23c TL |
361 | if (!success) { |
362 | spdk_bdev_io_complete(bdev_io, SPDK_BDEV_IO_STATUS_FAILED); | |
363 | return; | |
364 | } | |
365 | ||
11fdf7f2 TL |
366 | ret = bdev_nvme_readv((struct nvme_bdev *)bdev_io->bdev->ctxt, |
367 | ch, | |
368 | (struct nvme_bdev_io *)bdev_io->driver_ctx, | |
369 | bdev_io->u.bdev.iovs, | |
370 | bdev_io->u.bdev.iovcnt, | |
9f95a23c | 371 | bdev_io->u.bdev.md_buf, |
11fdf7f2 TL |
372 | bdev_io->u.bdev.num_blocks, |
373 | bdev_io->u.bdev.offset_blocks); | |
374 | ||
375 | if (spdk_likely(ret == 0)) { | |
376 | return; | |
377 | } else if (ret == -ENOMEM) { | |
378 | spdk_bdev_io_complete(bdev_io, SPDK_BDEV_IO_STATUS_NOMEM); | |
379 | } else { | |
380 | spdk_bdev_io_complete(bdev_io, SPDK_BDEV_IO_STATUS_FAILED); | |
381 | } | |
382 | } | |
383 | ||
384 | static int | |
385 | _bdev_nvme_submit_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io) | |
386 | { | |
387 | struct nvme_io_channel *nvme_ch = spdk_io_channel_get_ctx(ch); | |
9f95a23c TL |
388 | struct nvme_bdev *nbdev = (struct nvme_bdev *)bdev_io->bdev->ctxt; |
389 | struct nvme_bdev_io *nbdev_io = (struct nvme_bdev_io *)bdev_io->driver_ctx; | |
390 | ||
11fdf7f2 TL |
391 | if (nvme_ch->qpair == NULL) { |
392 | /* The device is currently resetting */ | |
393 | return -1; | |
394 | } | |
395 | ||
396 | switch (bdev_io->type) { | |
397 | case SPDK_BDEV_IO_TYPE_READ: | |
398 | spdk_bdev_io_get_buf(bdev_io, bdev_nvme_get_buf_cb, | |
399 | bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen); | |
400 | return 0; | |
401 | ||
402 | case SPDK_BDEV_IO_TYPE_WRITE: | |
9f95a23c | 403 | return bdev_nvme_writev(nbdev, |
11fdf7f2 | 404 | ch, |
9f95a23c | 405 | nbdev_io, |
11fdf7f2 TL |
406 | bdev_io->u.bdev.iovs, |
407 | bdev_io->u.bdev.iovcnt, | |
9f95a23c | 408 | bdev_io->u.bdev.md_buf, |
11fdf7f2 TL |
409 | bdev_io->u.bdev.num_blocks, |
410 | bdev_io->u.bdev.offset_blocks); | |
411 | ||
412 | case SPDK_BDEV_IO_TYPE_WRITE_ZEROES: | |
9f95a23c | 413 | return bdev_nvme_unmap(nbdev, |
11fdf7f2 | 414 | ch, |
9f95a23c | 415 | nbdev_io, |
11fdf7f2 TL |
416 | bdev_io->u.bdev.offset_blocks, |
417 | bdev_io->u.bdev.num_blocks); | |
418 | ||
419 | case SPDK_BDEV_IO_TYPE_UNMAP: | |
9f95a23c | 420 | return bdev_nvme_unmap(nbdev, |
11fdf7f2 | 421 | ch, |
9f95a23c | 422 | nbdev_io, |
11fdf7f2 TL |
423 | bdev_io->u.bdev.offset_blocks, |
424 | bdev_io->u.bdev.num_blocks); | |
425 | ||
426 | case SPDK_BDEV_IO_TYPE_RESET: | |
9f95a23c | 427 | return bdev_nvme_reset(nbdev, nbdev_io); |
11fdf7f2 TL |
428 | |
429 | case SPDK_BDEV_IO_TYPE_FLUSH: | |
9f95a23c TL |
430 | return bdev_nvme_flush(nbdev, |
431 | nbdev_io, | |
11fdf7f2 TL |
432 | bdev_io->u.bdev.offset_blocks, |
433 | bdev_io->u.bdev.num_blocks); | |
434 | ||
435 | case SPDK_BDEV_IO_TYPE_NVME_ADMIN: | |
9f95a23c | 436 | return bdev_nvme_admin_passthru(nbdev, |
11fdf7f2 | 437 | ch, |
9f95a23c | 438 | nbdev_io, |
11fdf7f2 TL |
439 | &bdev_io->u.nvme_passthru.cmd, |
440 | bdev_io->u.nvme_passthru.buf, | |
441 | bdev_io->u.nvme_passthru.nbytes); | |
442 | ||
443 | case SPDK_BDEV_IO_TYPE_NVME_IO: | |
9f95a23c | 444 | return bdev_nvme_io_passthru(nbdev, |
11fdf7f2 | 445 | ch, |
9f95a23c | 446 | nbdev_io, |
11fdf7f2 TL |
447 | &bdev_io->u.nvme_passthru.cmd, |
448 | bdev_io->u.nvme_passthru.buf, | |
449 | bdev_io->u.nvme_passthru.nbytes); | |
450 | ||
451 | case SPDK_BDEV_IO_TYPE_NVME_IO_MD: | |
9f95a23c | 452 | return bdev_nvme_io_passthru_md(nbdev, |
11fdf7f2 | 453 | ch, |
9f95a23c | 454 | nbdev_io, |
11fdf7f2 TL |
455 | &bdev_io->u.nvme_passthru.cmd, |
456 | bdev_io->u.nvme_passthru.buf, | |
457 | bdev_io->u.nvme_passthru.nbytes, | |
458 | bdev_io->u.nvme_passthru.md_buf, | |
459 | bdev_io->u.nvme_passthru.md_len); | |
460 | ||
461 | default: | |
462 | return -EINVAL; | |
463 | } | |
464 | return 0; | |
465 | } | |
466 | ||
467 | static void | |
468 | bdev_nvme_submit_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io) | |
469 | { | |
470 | int rc = _bdev_nvme_submit_request(ch, bdev_io); | |
471 | ||
472 | if (spdk_unlikely(rc != 0)) { | |
473 | if (rc == -ENOMEM) { | |
474 | spdk_bdev_io_complete(bdev_io, SPDK_BDEV_IO_STATUS_NOMEM); | |
475 | } else { | |
476 | spdk_bdev_io_complete(bdev_io, SPDK_BDEV_IO_STATUS_FAILED); | |
477 | } | |
478 | } | |
479 | } | |
480 | ||
481 | static bool | |
482 | bdev_nvme_io_type_supported(void *ctx, enum spdk_bdev_io_type io_type) | |
483 | { | |
484 | struct nvme_bdev *nbdev = ctx; | |
485 | const struct spdk_nvme_ctrlr_data *cdata; | |
486 | ||
487 | switch (io_type) { | |
488 | case SPDK_BDEV_IO_TYPE_READ: | |
489 | case SPDK_BDEV_IO_TYPE_WRITE: | |
490 | case SPDK_BDEV_IO_TYPE_RESET: | |
491 | case SPDK_BDEV_IO_TYPE_FLUSH: | |
492 | case SPDK_BDEV_IO_TYPE_NVME_ADMIN: | |
493 | case SPDK_BDEV_IO_TYPE_NVME_IO: | |
494 | return true; | |
495 | ||
496 | case SPDK_BDEV_IO_TYPE_NVME_IO_MD: | |
497 | return spdk_nvme_ns_get_md_size(nbdev->ns) ? true : false; | |
498 | ||
499 | case SPDK_BDEV_IO_TYPE_UNMAP: | |
9f95a23c | 500 | cdata = spdk_nvme_ctrlr_get_data(nbdev->nvme_bdev_ctrlr->ctrlr); |
11fdf7f2 TL |
501 | return cdata->oncs.dsm; |
502 | ||
503 | case SPDK_BDEV_IO_TYPE_WRITE_ZEROES: | |
9f95a23c | 504 | cdata = spdk_nvme_ctrlr_get_data(nbdev->nvme_bdev_ctrlr->ctrlr); |
11fdf7f2 TL |
505 | /* |
506 | * If an NVMe controller guarantees reading unallocated blocks returns zero, | |
507 | * we can implement WRITE_ZEROES as an NVMe deallocate command. | |
508 | */ | |
509 | if (cdata->oncs.dsm && | |
510 | spdk_nvme_ns_get_dealloc_logical_block_read_value(nbdev->ns) == SPDK_NVME_DEALLOC_READ_00) { | |
511 | return true; | |
512 | } | |
513 | /* | |
514 | * The NVMe controller write_zeroes function is currently not used by our driver. | |
515 | * If a user submits an arbitrarily large write_zeroes request to the controller, the request will fail. | |
516 | * Until this is resolved, we only claim support for write_zeroes if deallocated blocks return 0's when read. | |
517 | */ | |
518 | return false; | |
519 | ||
520 | default: | |
521 | return false; | |
522 | } | |
523 | } | |
524 | ||
525 | static int | |
526 | bdev_nvme_create_cb(void *io_device, void *ctx_buf) | |
527 | { | |
528 | struct spdk_nvme_ctrlr *ctrlr = io_device; | |
529 | struct nvme_io_channel *ch = ctx_buf; | |
9f95a23c | 530 | struct spdk_nvme_io_qpair_opts opts; |
11fdf7f2 TL |
531 | |
532 | #ifdef SPDK_CONFIG_VTUNE | |
533 | ch->collect_spin_stat = true; | |
534 | #else | |
535 | ch->collect_spin_stat = false; | |
536 | #endif | |
537 | ||
9f95a23c TL |
538 | spdk_nvme_ctrlr_get_default_io_qpair_opts(ctrlr, &opts, sizeof(opts)); |
539 | opts.delay_pcie_doorbell = true; | |
540 | ||
541 | ch->qpair = spdk_nvme_ctrlr_alloc_io_qpair(ctrlr, &opts, sizeof(opts)); | |
11fdf7f2 TL |
542 | |
543 | if (ch->qpair == NULL) { | |
544 | return -1; | |
545 | } | |
546 | ||
9f95a23c | 547 | ch->poller = spdk_poller_register(bdev_nvme_poll, ch, g_opts.nvme_ioq_poll_period_us); |
11fdf7f2 TL |
548 | return 0; |
549 | } | |
550 | ||
551 | static void | |
552 | bdev_nvme_destroy_cb(void *io_device, void *ctx_buf) | |
553 | { | |
554 | struct nvme_io_channel *ch = ctx_buf; | |
555 | ||
556 | spdk_nvme_ctrlr_free_io_qpair(ch->qpair); | |
557 | spdk_poller_unregister(&ch->poller); | |
558 | } | |
559 | ||
560 | static struct spdk_io_channel * | |
561 | bdev_nvme_get_io_channel(void *ctx) | |
562 | { | |
563 | struct nvme_bdev *nvme_bdev = ctx; | |
564 | ||
9f95a23c | 565 | return spdk_get_io_channel(nvme_bdev->nvme_bdev_ctrlr->ctrlr); |
11fdf7f2 TL |
566 | } |
567 | ||
568 | static int | |
569 | bdev_nvme_dump_info_json(void *ctx, struct spdk_json_write_ctx *w) | |
570 | { | |
571 | struct nvme_bdev *nvme_bdev = ctx; | |
9f95a23c | 572 | struct nvme_bdev_ctrlr *nvme_bdev_ctrlr = nvme_bdev->nvme_bdev_ctrlr; |
11fdf7f2 TL |
573 | const struct spdk_nvme_ctrlr_data *cdata; |
574 | struct spdk_nvme_ns *ns; | |
575 | union spdk_nvme_vs_register vs; | |
576 | union spdk_nvme_csts_register csts; | |
577 | char buf[128]; | |
578 | ||
9f95a23c TL |
579 | cdata = spdk_nvme_ctrlr_get_data(nvme_bdev->nvme_bdev_ctrlr->ctrlr); |
580 | vs = spdk_nvme_ctrlr_get_regs_vs(nvme_bdev->nvme_bdev_ctrlr->ctrlr); | |
581 | csts = spdk_nvme_ctrlr_get_regs_csts(nvme_bdev->nvme_bdev_ctrlr->ctrlr); | |
11fdf7f2 TL |
582 | ns = nvme_bdev->ns; |
583 | ||
584 | spdk_json_write_named_object_begin(w, "nvme"); | |
585 | ||
9f95a23c TL |
586 | if (nvme_bdev_ctrlr->trid.trtype == SPDK_NVME_TRANSPORT_PCIE) { |
587 | spdk_json_write_named_string(w, "pci_address", nvme_bdev_ctrlr->trid.traddr); | |
11fdf7f2 TL |
588 | } |
589 | ||
590 | spdk_json_write_named_object_begin(w, "trid"); | |
591 | ||
9f95a23c | 592 | nvme_bdev_dump_trid_json(&nvme_bdev_ctrlr->trid, w); |
11fdf7f2 TL |
593 | |
594 | spdk_json_write_object_end(w); | |
595 | ||
596 | spdk_json_write_named_object_begin(w, "ctrlr_data"); | |
597 | ||
598 | spdk_json_write_named_string_fmt(w, "vendor_id", "0x%04x", cdata->vid); | |
599 | ||
600 | snprintf(buf, sizeof(cdata->mn) + 1, "%s", cdata->mn); | |
601 | spdk_str_trim(buf); | |
602 | spdk_json_write_named_string(w, "model_number", buf); | |
603 | ||
604 | snprintf(buf, sizeof(cdata->sn) + 1, "%s", cdata->sn); | |
605 | spdk_str_trim(buf); | |
606 | spdk_json_write_named_string(w, "serial_number", buf); | |
607 | ||
608 | snprintf(buf, sizeof(cdata->fr) + 1, "%s", cdata->fr); | |
609 | spdk_str_trim(buf); | |
610 | spdk_json_write_named_string(w, "firmware_revision", buf); | |
611 | ||
612 | spdk_json_write_named_object_begin(w, "oacs"); | |
613 | ||
614 | spdk_json_write_named_uint32(w, "security", cdata->oacs.security); | |
615 | spdk_json_write_named_uint32(w, "format", cdata->oacs.format); | |
616 | spdk_json_write_named_uint32(w, "firmware", cdata->oacs.firmware); | |
617 | spdk_json_write_named_uint32(w, "ns_manage", cdata->oacs.ns_manage); | |
618 | ||
619 | spdk_json_write_object_end(w); | |
620 | ||
621 | spdk_json_write_object_end(w); | |
622 | ||
623 | spdk_json_write_named_object_begin(w, "vs"); | |
624 | ||
625 | spdk_json_write_name(w, "nvme_version"); | |
626 | if (vs.bits.ter) { | |
627 | spdk_json_write_string_fmt(w, "%u.%u.%u", vs.bits.mjr, vs.bits.mnr, vs.bits.ter); | |
628 | } else { | |
629 | spdk_json_write_string_fmt(w, "%u.%u", vs.bits.mjr, vs.bits.mnr); | |
630 | } | |
631 | ||
632 | spdk_json_write_object_end(w); | |
633 | ||
634 | spdk_json_write_named_object_begin(w, "csts"); | |
635 | ||
636 | spdk_json_write_named_uint32(w, "rdy", csts.bits.rdy); | |
637 | spdk_json_write_named_uint32(w, "cfs", csts.bits.cfs); | |
638 | ||
639 | spdk_json_write_object_end(w); | |
640 | ||
641 | spdk_json_write_named_object_begin(w, "ns_data"); | |
642 | ||
643 | spdk_json_write_named_uint32(w, "id", spdk_nvme_ns_get_id(ns)); | |
644 | ||
645 | spdk_json_write_object_end(w); | |
646 | ||
647 | spdk_json_write_object_end(w); | |
648 | ||
649 | return 0; | |
650 | } | |
651 | ||
652 | static void | |
653 | bdev_nvme_write_config_json(struct spdk_bdev *bdev, struct spdk_json_write_ctx *w) | |
654 | { | |
655 | /* No config per bdev needed */ | |
656 | } | |
657 | ||
658 | static uint64_t | |
659 | bdev_nvme_get_spin_time(struct spdk_io_channel *ch) | |
660 | { | |
661 | struct nvme_io_channel *nvme_ch = spdk_io_channel_get_ctx(ch); | |
662 | uint64_t spin_time; | |
663 | ||
664 | if (!nvme_ch->collect_spin_stat) { | |
665 | return 0; | |
666 | } | |
667 | ||
668 | if (nvme_ch->end_ticks != 0) { | |
669 | nvme_ch->spin_ticks += (nvme_ch->end_ticks - nvme_ch->start_ticks); | |
670 | nvme_ch->end_ticks = 0; | |
671 | } | |
672 | ||
673 | spin_time = (nvme_ch->spin_ticks * 1000000ULL) / spdk_get_ticks_hz(); | |
674 | nvme_ch->start_ticks = 0; | |
675 | nvme_ch->spin_ticks = 0; | |
676 | ||
677 | return spin_time; | |
678 | } | |
679 | ||
680 | static const struct spdk_bdev_fn_table nvmelib_fn_table = { | |
681 | .destruct = bdev_nvme_destruct, | |
682 | .submit_request = bdev_nvme_submit_request, | |
683 | .io_type_supported = bdev_nvme_io_type_supported, | |
684 | .get_io_channel = bdev_nvme_get_io_channel, | |
685 | .dump_info_json = bdev_nvme_dump_info_json, | |
686 | .write_config_json = bdev_nvme_write_config_json, | |
687 | .get_spin_time = bdev_nvme_get_spin_time, | |
688 | }; | |
689 | ||
690 | static int | |
9f95a23c | 691 | nvme_ctrlr_create_bdev(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr, uint32_t nsid) |
11fdf7f2 | 692 | { |
9f95a23c | 693 | struct spdk_nvme_ctrlr *ctrlr = nvme_bdev_ctrlr->ctrlr; |
11fdf7f2 TL |
694 | struct nvme_bdev *bdev; |
695 | struct spdk_nvme_ns *ns; | |
696 | const struct spdk_uuid *uuid; | |
697 | const struct spdk_nvme_ctrlr_data *cdata; | |
9f95a23c | 698 | const struct spdk_nvme_ns_data *nsdata; |
11fdf7f2 TL |
699 | int rc; |
700 | ||
701 | cdata = spdk_nvme_ctrlr_get_data(ctrlr); | |
702 | ||
703 | ns = spdk_nvme_ctrlr_get_ns(ctrlr, nsid); | |
704 | if (!ns) { | |
705 | SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "Invalid NS %d\n", nsid); | |
706 | return -EINVAL; | |
707 | } | |
708 | ||
9f95a23c | 709 | bdev = &nvme_bdev_ctrlr->bdevs[nsid - 1]; |
11fdf7f2 TL |
710 | bdev->id = nsid; |
711 | ||
9f95a23c | 712 | bdev->nvme_bdev_ctrlr = nvme_bdev_ctrlr; |
11fdf7f2 | 713 | bdev->ns = ns; |
9f95a23c | 714 | nvme_bdev_ctrlr->ref++; |
11fdf7f2 | 715 | |
9f95a23c | 716 | bdev->disk.name = spdk_sprintf_alloc("%sn%d", nvme_bdev_ctrlr->name, spdk_nvme_ns_get_id(ns)); |
11fdf7f2 | 717 | if (!bdev->disk.name) { |
9f95a23c | 718 | nvme_bdev_ctrlr->ref--; |
11fdf7f2 TL |
719 | memset(bdev, 0, sizeof(*bdev)); |
720 | return -ENOMEM; | |
721 | } | |
722 | bdev->disk.product_name = "NVMe disk"; | |
723 | ||
724 | bdev->disk.write_cache = 0; | |
725 | if (cdata->vwc.present) { | |
726 | /* Enable if the Volatile Write Cache exists */ | |
727 | bdev->disk.write_cache = 1; | |
728 | } | |
729 | bdev->disk.blocklen = spdk_nvme_ns_get_extended_sector_size(ns); | |
730 | bdev->disk.blockcnt = spdk_nvme_ns_get_num_sectors(ns); | |
731 | bdev->disk.optimal_io_boundary = spdk_nvme_ns_get_optimal_io_boundary(ns); | |
732 | ||
733 | uuid = spdk_nvme_ns_get_uuid(ns); | |
734 | if (uuid != NULL) { | |
735 | bdev->disk.uuid = *uuid; | |
736 | } | |
737 | ||
9f95a23c TL |
738 | bdev->disk.md_len = spdk_nvme_ns_get_md_size(ns); |
739 | if (bdev->disk.md_len != 0) { | |
740 | nsdata = spdk_nvme_ns_get_data(ns); | |
741 | bdev->disk.md_interleave = nsdata->flbas.extended; | |
742 | bdev->disk.dif_type = (enum spdk_dif_type)spdk_nvme_ns_get_pi_type(ns); | |
743 | if (bdev->disk.dif_type != SPDK_DIF_DISABLE) { | |
744 | bdev->disk.dif_is_head_of_md = nsdata->dps.md_start; | |
745 | bdev->disk.dif_check_flags = nvme_bdev_ctrlr->prchk_flags; | |
746 | } | |
747 | } | |
748 | ||
11fdf7f2 TL |
749 | bdev->disk.ctxt = bdev; |
750 | bdev->disk.fn_table = &nvmelib_fn_table; | |
751 | bdev->disk.module = &nvme_if; | |
752 | rc = spdk_bdev_register(&bdev->disk); | |
753 | if (rc) { | |
754 | free(bdev->disk.name); | |
9f95a23c | 755 | nvme_bdev_ctrlr->ref--; |
11fdf7f2 TL |
756 | memset(bdev, 0, sizeof(*bdev)); |
757 | return rc; | |
758 | } | |
759 | bdev->active = true; | |
760 | ||
761 | return 0; | |
762 | } | |
763 | ||
764 | ||
765 | static bool | |
766 | hotplug_probe_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid, | |
767 | struct spdk_nvme_ctrlr_opts *opts) | |
768 | { | |
9f95a23c | 769 | struct nvme_probe_skip_entry *entry; |
11fdf7f2 | 770 | |
9f95a23c TL |
771 | TAILQ_FOREACH(entry, &g_skipped_nvme_ctrlrs, tailq) { |
772 | if (spdk_nvme_transport_id_compare(trid, &entry->trid) == 0) { | |
773 | return false; | |
11fdf7f2 TL |
774 | } |
775 | } | |
776 | ||
9f95a23c | 777 | SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "Attaching to %s\n", trid->traddr); |
11fdf7f2 | 778 | |
9f95a23c | 779 | return true; |
11fdf7f2 TL |
780 | } |
781 | ||
782 | static bool | |
783 | probe_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid, | |
784 | struct spdk_nvme_ctrlr_opts *opts) | |
785 | { | |
786 | struct nvme_probe_ctx *ctx = cb_ctx; | |
787 | ||
788 | SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "Probing device %s\n", trid->traddr); | |
789 | ||
9f95a23c | 790 | if (nvme_bdev_ctrlr_get(trid)) { |
11fdf7f2 TL |
791 | SPDK_ERRLOG("A controller with the provided trid (traddr: %s) already exists.\n", |
792 | trid->traddr); | |
793 | return false; | |
794 | } | |
795 | ||
796 | if (trid->trtype == SPDK_NVME_TRANSPORT_PCIE) { | |
797 | bool claim_device = false; | |
798 | size_t i; | |
799 | ||
800 | for (i = 0; i < ctx->count; i++) { | |
801 | if (spdk_nvme_transport_id_compare(trid, &ctx->trids[i]) == 0) { | |
802 | claim_device = true; | |
803 | break; | |
804 | } | |
805 | } | |
806 | ||
807 | if (!claim_device) { | |
808 | SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "Not claiming device at %s\n", trid->traddr); | |
809 | return false; | |
810 | } | |
811 | } | |
812 | ||
813 | if (ctx->hostnqn) { | |
814 | snprintf(opts->hostnqn, sizeof(opts->hostnqn), "%s", ctx->hostnqn); | |
815 | } | |
816 | ||
817 | return true; | |
818 | } | |
819 | ||
820 | static void | |
821 | spdk_nvme_abort_cpl(void *ctx, const struct spdk_nvme_cpl *cpl) | |
822 | { | |
823 | struct spdk_nvme_ctrlr *ctrlr = ctx; | |
824 | int rc; | |
825 | ||
826 | if (spdk_nvme_cpl_is_error(cpl)) { | |
827 | SPDK_WARNLOG("Abort failed. Resetting controller.\n"); | |
828 | rc = spdk_nvme_ctrlr_reset(ctrlr); | |
829 | if (rc) { | |
830 | SPDK_ERRLOG("Resetting controller failed.\n"); | |
831 | } | |
832 | } | |
833 | } | |
834 | ||
835 | static void | |
836 | timeout_cb(void *cb_arg, struct spdk_nvme_ctrlr *ctrlr, | |
837 | struct spdk_nvme_qpair *qpair, uint16_t cid) | |
838 | { | |
839 | int rc; | |
840 | union spdk_nvme_csts_register csts; | |
841 | ||
842 | SPDK_WARNLOG("Warning: Detected a timeout. ctrlr=%p qpair=%p cid=%u\n", ctrlr, qpair, cid); | |
843 | ||
844 | csts = spdk_nvme_ctrlr_get_regs_csts(ctrlr); | |
845 | if (csts.bits.cfs) { | |
846 | SPDK_ERRLOG("Controller Fatal Status, reset required\n"); | |
847 | rc = spdk_nvme_ctrlr_reset(ctrlr); | |
848 | if (rc) { | |
849 | SPDK_ERRLOG("Resetting controller failed.\n"); | |
850 | } | |
851 | return; | |
852 | } | |
853 | ||
854 | switch (g_opts.action_on_timeout) { | |
855 | case SPDK_BDEV_NVME_TIMEOUT_ACTION_ABORT: | |
856 | if (qpair) { | |
857 | rc = spdk_nvme_ctrlr_cmd_abort(ctrlr, qpair, cid, | |
858 | spdk_nvme_abort_cpl, ctrlr); | |
859 | if (rc == 0) { | |
860 | return; | |
861 | } | |
862 | ||
863 | SPDK_ERRLOG("Unable to send abort. Resetting.\n"); | |
864 | } | |
865 | ||
866 | /* FALLTHROUGH */ | |
867 | case SPDK_BDEV_NVME_TIMEOUT_ACTION_RESET: | |
868 | rc = spdk_nvme_ctrlr_reset(ctrlr); | |
869 | if (rc) { | |
870 | SPDK_ERRLOG("Resetting controller failed.\n"); | |
871 | } | |
872 | break; | |
873 | case SPDK_BDEV_NVME_TIMEOUT_ACTION_NONE: | |
9f95a23c TL |
874 | SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "No action for nvme controller timeout.\n"); |
875 | break; | |
876 | default: | |
877 | SPDK_ERRLOG("An invalid timeout action value is found.\n"); | |
11fdf7f2 TL |
878 | break; |
879 | } | |
880 | } | |
881 | ||
882 | static void | |
883 | nvme_ctrlr_deactivate_bdev(struct nvme_bdev *bdev) | |
884 | { | |
885 | spdk_bdev_unregister(&bdev->disk, NULL, NULL); | |
886 | bdev->active = false; | |
887 | } | |
888 | ||
889 | static void | |
9f95a23c | 890 | nvme_ctrlr_update_ns_bdevs(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr) |
11fdf7f2 | 891 | { |
9f95a23c | 892 | struct spdk_nvme_ctrlr *ctrlr = nvme_bdev_ctrlr->ctrlr; |
11fdf7f2 TL |
893 | uint32_t i; |
894 | struct nvme_bdev *bdev; | |
895 | ||
9f95a23c | 896 | for (i = 0; i < nvme_bdev_ctrlr->num_ns; i++) { |
11fdf7f2 TL |
897 | uint32_t nsid = i + 1; |
898 | ||
9f95a23c | 899 | bdev = &nvme_bdev_ctrlr->bdevs[i]; |
11fdf7f2 TL |
900 | if (!bdev->active && spdk_nvme_ctrlr_is_active_ns(ctrlr, nsid)) { |
901 | SPDK_NOTICELOG("NSID %u to be added\n", nsid); | |
9f95a23c | 902 | nvme_ctrlr_create_bdev(nvme_bdev_ctrlr, nsid); |
11fdf7f2 TL |
903 | } |
904 | ||
905 | if (bdev->active && !spdk_nvme_ctrlr_is_active_ns(ctrlr, nsid)) { | |
906 | SPDK_NOTICELOG("NSID %u Bdev %s is removed\n", nsid, bdev->disk.name); | |
907 | nvme_ctrlr_deactivate_bdev(bdev); | |
908 | } | |
909 | } | |
910 | ||
911 | } | |
912 | ||
913 | static void | |
914 | aer_cb(void *arg, const struct spdk_nvme_cpl *cpl) | |
915 | { | |
9f95a23c | 916 | struct nvme_bdev_ctrlr *nvme_bdev_ctrlr = arg; |
11fdf7f2 TL |
917 | union spdk_nvme_async_event_completion event; |
918 | ||
919 | if (spdk_nvme_cpl_is_error(cpl)) { | |
920 | SPDK_WARNLOG("AER request execute failed"); | |
921 | return; | |
922 | } | |
923 | ||
924 | event.raw = cpl->cdw0; | |
925 | if ((event.bits.async_event_type == SPDK_NVME_ASYNC_EVENT_TYPE_NOTICE) && | |
926 | (event.bits.async_event_info == SPDK_NVME_ASYNC_EVENT_NS_ATTR_CHANGED)) { | |
9f95a23c | 927 | nvme_ctrlr_update_ns_bdevs(nvme_bdev_ctrlr); |
11fdf7f2 TL |
928 | } |
929 | } | |
930 | ||
931 | static int | |
932 | create_ctrlr(struct spdk_nvme_ctrlr *ctrlr, | |
933 | const char *name, | |
9f95a23c TL |
934 | const struct spdk_nvme_transport_id *trid, |
935 | uint32_t prchk_flags) | |
11fdf7f2 | 936 | { |
9f95a23c | 937 | struct nvme_bdev_ctrlr *nvme_bdev_ctrlr; |
11fdf7f2 | 938 | |
9f95a23c TL |
939 | nvme_bdev_ctrlr = calloc(1, sizeof(*nvme_bdev_ctrlr)); |
940 | if (nvme_bdev_ctrlr == NULL) { | |
11fdf7f2 TL |
941 | SPDK_ERRLOG("Failed to allocate device struct\n"); |
942 | return -ENOMEM; | |
943 | } | |
9f95a23c TL |
944 | nvme_bdev_ctrlr->num_ns = spdk_nvme_ctrlr_get_num_ns(ctrlr); |
945 | nvme_bdev_ctrlr->bdevs = calloc(nvme_bdev_ctrlr->num_ns, sizeof(struct nvme_bdev)); | |
946 | if (!nvme_bdev_ctrlr->bdevs) { | |
11fdf7f2 | 947 | SPDK_ERRLOG("Failed to allocate block devices struct\n"); |
9f95a23c | 948 | free(nvme_bdev_ctrlr); |
11fdf7f2 TL |
949 | return -ENOMEM; |
950 | } | |
951 | ||
9f95a23c TL |
952 | nvme_bdev_ctrlr->adminq_timer_poller = NULL; |
953 | nvme_bdev_ctrlr->ctrlr = ctrlr; | |
954 | nvme_bdev_ctrlr->ref = 0; | |
955 | nvme_bdev_ctrlr->trid = *trid; | |
956 | nvme_bdev_ctrlr->name = strdup(name); | |
957 | if (nvme_bdev_ctrlr->name == NULL) { | |
958 | free(nvme_bdev_ctrlr->bdevs); | |
959 | free(nvme_bdev_ctrlr); | |
11fdf7f2 TL |
960 | return -ENOMEM; |
961 | } | |
9f95a23c | 962 | nvme_bdev_ctrlr->prchk_flags = prchk_flags; |
11fdf7f2 TL |
963 | |
964 | spdk_io_device_register(ctrlr, bdev_nvme_create_cb, bdev_nvme_destroy_cb, | |
965 | sizeof(struct nvme_io_channel), | |
966 | name); | |
967 | ||
9f95a23c | 968 | nvme_ctrlr_create_bdevs(nvme_bdev_ctrlr); |
11fdf7f2 | 969 | |
9f95a23c TL |
970 | nvme_bdev_ctrlr->adminq_timer_poller = spdk_poller_register(bdev_nvme_poll_adminq, ctrlr, |
971 | g_opts.nvme_adminq_poll_period_us); | |
11fdf7f2 | 972 | |
9f95a23c | 973 | TAILQ_INSERT_TAIL(&g_nvme_bdev_ctrlrs, nvme_bdev_ctrlr, tailq); |
11fdf7f2 | 974 | |
9f95a23c | 975 | if (g_opts.timeout_us > 0) { |
11fdf7f2 TL |
976 | spdk_nvme_ctrlr_register_timeout_callback(ctrlr, g_opts.timeout_us, |
977 | timeout_cb, NULL); | |
978 | } | |
979 | ||
9f95a23c | 980 | spdk_nvme_ctrlr_register_aer_callback(ctrlr, aer_cb, nvme_bdev_ctrlr); |
11fdf7f2 TL |
981 | |
982 | return 0; | |
983 | } | |
984 | ||
985 | static void | |
986 | attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid, | |
987 | struct spdk_nvme_ctrlr *ctrlr, const struct spdk_nvme_ctrlr_opts *opts) | |
988 | { | |
989 | struct nvme_probe_ctx *ctx = cb_ctx; | |
990 | char *name = NULL; | |
9f95a23c | 991 | uint32_t prchk_flags = 0; |
11fdf7f2 TL |
992 | size_t i; |
993 | ||
994 | if (ctx) { | |
995 | for (i = 0; i < ctx->count; i++) { | |
996 | if (spdk_nvme_transport_id_compare(trid, &ctx->trids[i]) == 0) { | |
9f95a23c | 997 | prchk_flags = ctx->prchk_flags[i]; |
11fdf7f2 TL |
998 | name = strdup(ctx->names[i]); |
999 | break; | |
1000 | } | |
1001 | } | |
1002 | } else { | |
1003 | name = spdk_sprintf_alloc("HotInNvme%d", g_hot_insert_nvme_controller_index++); | |
1004 | } | |
1005 | if (!name) { | |
1006 | SPDK_ERRLOG("Failed to assign name to NVMe device\n"); | |
1007 | return; | |
1008 | } | |
1009 | ||
1010 | SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "Attached to %s (%s)\n", trid->traddr, name); | |
1011 | ||
9f95a23c | 1012 | create_ctrlr(ctrlr, name, trid, prchk_flags); |
11fdf7f2 TL |
1013 | |
1014 | free(name); | |
1015 | } | |
1016 | ||
1017 | static void | |
1018 | remove_cb(void *cb_ctx, struct spdk_nvme_ctrlr *ctrlr) | |
1019 | { | |
1020 | uint32_t i; | |
9f95a23c | 1021 | struct nvme_bdev_ctrlr *nvme_bdev_ctrlr; |
11fdf7f2 TL |
1022 | struct nvme_bdev *nvme_bdev; |
1023 | ||
1024 | pthread_mutex_lock(&g_bdev_nvme_mutex); | |
9f95a23c TL |
1025 | TAILQ_FOREACH(nvme_bdev_ctrlr, &g_nvme_bdev_ctrlrs, tailq) { |
1026 | if (nvme_bdev_ctrlr->ctrlr == ctrlr) { | |
1027 | /* The controller's destruction was already started */ | |
1028 | if (nvme_bdev_ctrlr->destruct) { | |
1029 | pthread_mutex_unlock(&g_bdev_nvme_mutex); | |
1030 | return; | |
1031 | } | |
11fdf7f2 | 1032 | pthread_mutex_unlock(&g_bdev_nvme_mutex); |
9f95a23c | 1033 | for (i = 0; i < nvme_bdev_ctrlr->num_ns; i++) { |
11fdf7f2 TL |
1034 | uint32_t nsid = i + 1; |
1035 | ||
9f95a23c | 1036 | nvme_bdev = &nvme_bdev_ctrlr->bdevs[nsid - 1]; |
11fdf7f2 | 1037 | if (nvme_bdev->active) { |
9f95a23c | 1038 | assert(nvme_bdev->id == nsid); |
11fdf7f2 TL |
1039 | spdk_bdev_unregister(&nvme_bdev->disk, NULL, NULL); |
1040 | } | |
1041 | } | |
9f95a23c TL |
1042 | |
1043 | pthread_mutex_lock(&g_bdev_nvme_mutex); | |
1044 | nvme_bdev_ctrlr->destruct = true; | |
1045 | if (nvme_bdev_ctrlr->ref == 0) { | |
1046 | pthread_mutex_unlock(&g_bdev_nvme_mutex); | |
1047 | bdev_nvme_ctrlr_destruct(nvme_bdev_ctrlr); | |
1048 | } else { | |
1049 | pthread_mutex_unlock(&g_bdev_nvme_mutex); | |
1050 | } | |
11fdf7f2 TL |
1051 | return; |
1052 | } | |
1053 | } | |
1054 | pthread_mutex_unlock(&g_bdev_nvme_mutex); | |
1055 | } | |
1056 | ||
1057 | static int | |
1058 | bdev_nvme_hotplug(void *arg) | |
1059 | { | |
9f95a23c TL |
1060 | struct spdk_nvme_transport_id trid_pcie; |
1061 | int done; | |
1062 | ||
1063 | if (!g_hotplug_probe_ctx) { | |
1064 | memset(&trid_pcie, 0, sizeof(trid_pcie)); | |
1065 | trid_pcie.trtype = SPDK_NVME_TRANSPORT_PCIE; | |
1066 | ||
1067 | g_hotplug_probe_ctx = spdk_nvme_probe_async(&trid_pcie, NULL, | |
1068 | hotplug_probe_cb, | |
1069 | attach_cb, remove_cb); | |
1070 | if (!g_hotplug_probe_ctx) { | |
1071 | return -1; | |
1072 | } | |
1073 | } | |
1074 | ||
1075 | done = spdk_nvme_probe_poll_async(g_hotplug_probe_ctx); | |
1076 | if (done != -EAGAIN) { | |
1077 | g_hotplug_probe_ctx = NULL; | |
1078 | return 1; | |
11fdf7f2 TL |
1079 | } |
1080 | ||
1081 | return -1; | |
1082 | } | |
1083 | ||
1084 | void | |
1085 | spdk_bdev_nvme_get_opts(struct spdk_bdev_nvme_opts *opts) | |
1086 | { | |
1087 | *opts = g_opts; | |
1088 | } | |
1089 | ||
1090 | int | |
1091 | spdk_bdev_nvme_set_opts(const struct spdk_bdev_nvme_opts *opts) | |
1092 | { | |
1093 | if (g_bdev_nvme_init_thread != NULL) { | |
1094 | return -EPERM; | |
1095 | } | |
1096 | ||
1097 | g_opts = *opts; | |
1098 | ||
1099 | return 0; | |
1100 | } | |
1101 | struct set_nvme_hotplug_ctx { | |
1102 | uint64_t period_us; | |
1103 | bool enabled; | |
9f95a23c | 1104 | spdk_msg_fn fn; |
11fdf7f2 TL |
1105 | void *fn_ctx; |
1106 | }; | |
1107 | ||
1108 | static void | |
1109 | set_nvme_hotplug_period_cb(void *_ctx) | |
1110 | { | |
1111 | struct set_nvme_hotplug_ctx *ctx = _ctx; | |
1112 | ||
1113 | spdk_poller_unregister(&g_hotplug_poller); | |
1114 | if (ctx->enabled) { | |
1115 | g_hotplug_poller = spdk_poller_register(bdev_nvme_hotplug, NULL, ctx->period_us); | |
1116 | } | |
1117 | ||
1118 | g_nvme_hotplug_poll_period_us = ctx->period_us; | |
1119 | g_nvme_hotplug_enabled = ctx->enabled; | |
1120 | if (ctx->fn) { | |
1121 | ctx->fn(ctx->fn_ctx); | |
1122 | } | |
1123 | ||
1124 | free(ctx); | |
1125 | } | |
1126 | ||
1127 | int | |
9f95a23c | 1128 | spdk_bdev_nvme_set_hotplug(bool enabled, uint64_t period_us, spdk_msg_fn cb, void *cb_ctx) |
11fdf7f2 TL |
1129 | { |
1130 | struct set_nvme_hotplug_ctx *ctx; | |
1131 | ||
1132 | if (enabled == true && !spdk_process_is_primary()) { | |
1133 | return -EPERM; | |
1134 | } | |
1135 | ||
1136 | ctx = calloc(1, sizeof(*ctx)); | |
1137 | if (ctx == NULL) { | |
1138 | return -ENOMEM; | |
1139 | } | |
1140 | ||
1141 | period_us = period_us == 0 ? NVME_HOTPLUG_POLL_PERIOD_DEFAULT : period_us; | |
1142 | ctx->period_us = spdk_min(period_us, NVME_HOTPLUG_POLL_PERIOD_MAX); | |
1143 | ctx->enabled = enabled; | |
1144 | ctx->fn = cb; | |
1145 | ctx->fn_ctx = cb_ctx; | |
1146 | ||
1147 | spdk_thread_send_msg(g_bdev_nvme_init_thread, set_nvme_hotplug_period_cb, ctx); | |
1148 | return 0; | |
1149 | } | |
1150 | ||
9f95a23c TL |
1151 | static int |
1152 | bdev_nvme_create_and_get_bdev_names(struct spdk_nvme_ctrlr *ctrlr, | |
1153 | const char *base_name, | |
1154 | const char **names, size_t *count, | |
1155 | const struct spdk_nvme_transport_id *trid, | |
1156 | uint32_t prchk_flags) | |
11fdf7f2 | 1157 | { |
9f95a23c | 1158 | struct nvme_bdev_ctrlr *nvme_bdev_ctrlr; |
11fdf7f2 TL |
1159 | struct nvme_bdev *nvme_bdev; |
1160 | uint32_t i, nsid; | |
1161 | size_t j; | |
1162 | ||
9f95a23c TL |
1163 | if (create_ctrlr(ctrlr, base_name, trid, prchk_flags)) { |
1164 | SPDK_ERRLOG("Failed to create new device\n"); | |
11fdf7f2 TL |
1165 | return -1; |
1166 | } | |
1167 | ||
9f95a23c TL |
1168 | nvme_bdev_ctrlr = nvme_bdev_ctrlr_get(trid); |
1169 | if (!nvme_bdev_ctrlr) { | |
11fdf7f2 | 1170 | SPDK_ERRLOG("Failed to find new NVMe controller\n"); |
11fdf7f2 TL |
1171 | return -1; |
1172 | } | |
1173 | ||
1174 | /* | |
1175 | * Report the new bdevs that were created in this call. | |
1176 | * There can be more than one bdev per NVMe controller since one bdev is created per namespace. | |
1177 | */ | |
1178 | j = 0; | |
9f95a23c | 1179 | for (i = 0; i < nvme_bdev_ctrlr->num_ns; i++) { |
11fdf7f2 | 1180 | nsid = i + 1; |
9f95a23c | 1181 | nvme_bdev = &nvme_bdev_ctrlr->bdevs[nsid - 1]; |
11fdf7f2 TL |
1182 | if (!nvme_bdev->active) { |
1183 | continue; | |
1184 | } | |
1185 | assert(nvme_bdev->id == nsid); | |
1186 | if (j < *count) { | |
1187 | names[j] = nvme_bdev->disk.name; | |
1188 | j++; | |
1189 | } else { | |
1190 | SPDK_ERRLOG("Maximum number of namespaces supported per NVMe controller is %zu. Unable to return all names of created bdevs\n", | |
1191 | *count); | |
11fdf7f2 TL |
1192 | return -1; |
1193 | } | |
1194 | } | |
1195 | ||
1196 | *count = j; | |
1197 | ||
9f95a23c TL |
1198 | return 0; |
1199 | } | |
1200 | ||
1201 | struct nvme_async_probe_ctx { | |
1202 | struct spdk_nvme_probe_ctx *probe_ctx; | |
1203 | const char *base_name; | |
1204 | const char **names; | |
1205 | size_t *count; | |
1206 | uint32_t prchk_flags; | |
1207 | struct spdk_poller *poller; | |
1208 | struct spdk_nvme_transport_id trid; | |
1209 | struct spdk_nvme_ctrlr_opts opts; | |
1210 | spdk_bdev_create_nvme_fn cb_fn; | |
1211 | void *cb_ctx; | |
1212 | }; | |
1213 | ||
1214 | static void | |
1215 | connect_attach_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid, | |
1216 | struct spdk_nvme_ctrlr *ctrlr, const struct spdk_nvme_ctrlr_opts *opts) | |
1217 | { | |
1218 | struct spdk_nvme_ctrlr_opts *user_opts = cb_ctx; | |
1219 | struct nvme_async_probe_ctx *ctx; | |
1220 | int rc; | |
1221 | ||
1222 | ctx = SPDK_CONTAINEROF(user_opts, struct nvme_async_probe_ctx, opts); | |
1223 | rc = bdev_nvme_create_and_get_bdev_names(ctrlr, | |
1224 | ctx->base_name, | |
1225 | ctx->names, ctx->count, | |
1226 | &ctx->trid, | |
1227 | ctx->prchk_flags); | |
1228 | ||
1229 | if (ctx->cb_fn) { | |
1230 | ctx->cb_fn(ctx->cb_ctx, rc); | |
1231 | } | |
1232 | } | |
1233 | ||
1234 | static int | |
1235 | bdev_nvme_async_poll(void *arg) | |
1236 | { | |
1237 | struct nvme_async_probe_ctx *ctx = arg; | |
1238 | int done; | |
1239 | ||
1240 | done = spdk_nvme_probe_poll_async(ctx->probe_ctx); | |
1241 | /* retry again */ | |
1242 | if (done == -EAGAIN) { | |
1243 | return 1; | |
1244 | } | |
1245 | spdk_poller_unregister(&ctx->poller); | |
1246 | free(ctx); | |
1247 | return 1; | |
1248 | } | |
1249 | ||
1250 | int | |
1251 | spdk_bdev_nvme_create(struct spdk_nvme_transport_id *trid, | |
1252 | struct spdk_nvme_host_id *hostid, | |
1253 | const char *base_name, | |
1254 | const char **names, size_t *count, | |
1255 | const char *hostnqn, | |
1256 | uint32_t prchk_flags, | |
1257 | spdk_bdev_create_nvme_fn cb_fn, | |
1258 | void *cb_ctx) | |
1259 | { | |
1260 | struct nvme_probe_skip_entry *entry, *tmp; | |
1261 | struct nvme_async_probe_ctx *ctx; | |
1262 | ||
1263 | if (nvme_bdev_ctrlr_get(trid) != NULL) { | |
1264 | SPDK_ERRLOG("A controller with the provided trid (traddr: %s) already exists.\n", trid->traddr); | |
1265 | return -1; | |
1266 | } | |
1267 | ||
1268 | if (nvme_bdev_ctrlr_get_by_name(base_name)) { | |
1269 | SPDK_ERRLOG("A controller with the provided name (%s) already exists.\n", base_name); | |
1270 | return -1; | |
1271 | } | |
1272 | ||
1273 | if (trid->trtype == SPDK_NVME_TRANSPORT_PCIE) { | |
1274 | TAILQ_FOREACH_SAFE(entry, &g_skipped_nvme_ctrlrs, tailq, tmp) { | |
1275 | if (spdk_nvme_transport_id_compare(trid, &entry->trid) == 0) { | |
1276 | TAILQ_REMOVE(&g_skipped_nvme_ctrlrs, entry, tailq); | |
1277 | free(entry); | |
1278 | break; | |
1279 | } | |
1280 | } | |
1281 | } | |
1282 | ||
1283 | ctx = calloc(1, sizeof(*ctx)); | |
1284 | if (!ctx) { | |
1285 | return -ENOMEM; | |
1286 | } | |
1287 | ctx->base_name = base_name; | |
1288 | ctx->names = names; | |
1289 | ctx->count = count; | |
1290 | ctx->cb_fn = cb_fn; | |
1291 | ctx->cb_ctx = cb_ctx; | |
1292 | ctx->prchk_flags = prchk_flags; | |
1293 | ctx->trid = *trid; | |
1294 | ||
1295 | spdk_nvme_ctrlr_get_default_ctrlr_opts(&ctx->opts, sizeof(ctx->opts)); | |
1296 | ||
1297 | if (hostnqn) { | |
1298 | snprintf(ctx->opts.hostnqn, sizeof(ctx->opts.hostnqn), "%s", hostnqn); | |
1299 | } | |
1300 | ||
1301 | if (hostid->hostaddr[0] != '\0') { | |
1302 | snprintf(ctx->opts.src_addr, sizeof(ctx->opts.src_addr), "%s", hostid->hostaddr); | |
1303 | } | |
1304 | ||
1305 | if (hostid->hostsvcid[0] != '\0') { | |
1306 | snprintf(ctx->opts.src_svcid, sizeof(ctx->opts.src_svcid), "%s", hostid->hostsvcid); | |
1307 | } | |
1308 | ||
1309 | ctx->probe_ctx = spdk_nvme_connect_async(trid, &ctx->opts, connect_attach_cb); | |
1310 | if (ctx->probe_ctx == NULL) { | |
1311 | SPDK_ERRLOG("No controller was found with provided trid (traddr: %s)\n", trid->traddr); | |
1312 | free(ctx); | |
1313 | return -1; | |
1314 | } | |
1315 | ctx->poller = spdk_poller_register(bdev_nvme_async_poll, ctx, 1000); | |
1316 | ||
11fdf7f2 TL |
1317 | return 0; |
1318 | } | |
1319 | ||
1320 | int | |
1321 | spdk_bdev_nvme_delete(const char *name) | |
1322 | { | |
9f95a23c TL |
1323 | struct nvme_bdev_ctrlr *nvme_bdev_ctrlr = NULL; |
1324 | struct nvme_probe_skip_entry *entry; | |
11fdf7f2 TL |
1325 | |
1326 | if (name == NULL) { | |
1327 | return -EINVAL; | |
1328 | } | |
1329 | ||
9f95a23c TL |
1330 | nvme_bdev_ctrlr = nvme_bdev_ctrlr_get_by_name(name); |
1331 | if (nvme_bdev_ctrlr == NULL) { | |
11fdf7f2 TL |
1332 | SPDK_ERRLOG("Failed to find NVMe controller\n"); |
1333 | return -ENODEV; | |
1334 | } | |
1335 | ||
9f95a23c TL |
1336 | if (nvme_bdev_ctrlr->trid.trtype == SPDK_NVME_TRANSPORT_PCIE) { |
1337 | entry = calloc(1, sizeof(*entry)); | |
1338 | if (!entry) { | |
1339 | return -ENOMEM; | |
1340 | } | |
1341 | entry->trid = nvme_bdev_ctrlr->trid; | |
1342 | TAILQ_INSERT_TAIL(&g_skipped_nvme_ctrlrs, entry, tailq); | |
1343 | } | |
1344 | ||
1345 | remove_cb(NULL, nvme_bdev_ctrlr->ctrlr); | |
11fdf7f2 TL |
1346 | return 0; |
1347 | } | |
1348 | ||
1349 | static int | |
1350 | bdev_nvme_library_init(void) | |
1351 | { | |
1352 | struct spdk_conf_section *sp; | |
1353 | const char *val; | |
1354 | int rc = 0; | |
1355 | int64_t intval = 0; | |
1356 | size_t i; | |
1357 | struct nvme_probe_ctx *probe_ctx = NULL; | |
1358 | int retry_count; | |
1359 | uint32_t local_nvme_num = 0; | |
1360 | int64_t hotplug_period; | |
1361 | bool hotplug_enabled = g_nvme_hotplug_enabled; | |
1362 | ||
1363 | g_bdev_nvme_init_thread = spdk_get_thread(); | |
1364 | ||
1365 | sp = spdk_conf_find_section(NULL, "Nvme"); | |
1366 | if (sp == NULL) { | |
1367 | goto end; | |
1368 | } | |
1369 | ||
1370 | probe_ctx = calloc(1, sizeof(*probe_ctx)); | |
1371 | if (probe_ctx == NULL) { | |
1372 | SPDK_ERRLOG("Failed to allocate probe_ctx\n"); | |
1373 | rc = -1; | |
1374 | goto end; | |
1375 | } | |
1376 | ||
1377 | if ((retry_count = spdk_conf_section_get_intval(sp, "RetryCount")) < 0) { | |
1378 | if ((retry_count = spdk_conf_section_get_intval(sp, "NvmeRetryCount")) < 0) { | |
1379 | retry_count = SPDK_NVME_DEFAULT_RETRY_COUNT; | |
1380 | } else { | |
1381 | SPDK_WARNLOG("NvmeRetryCount was renamed to RetryCount\n"); | |
1382 | SPDK_WARNLOG("Please update your configuration file\n"); | |
1383 | } | |
1384 | } | |
1385 | ||
1386 | g_opts.retry_count = retry_count; | |
1387 | ||
1388 | val = spdk_conf_section_get_val(sp, "TimeoutUsec"); | |
1389 | if (val != NULL) { | |
9f95a23c TL |
1390 | intval = spdk_strtoll(val, 10); |
1391 | if (intval < 0) { | |
11fdf7f2 TL |
1392 | SPDK_ERRLOG("Invalid TimeoutUsec value\n"); |
1393 | rc = -1; | |
1394 | goto end; | |
11fdf7f2 TL |
1395 | } |
1396 | } | |
1397 | ||
1398 | g_opts.timeout_us = intval; | |
1399 | ||
1400 | if (g_opts.timeout_us > 0) { | |
1401 | val = spdk_conf_section_get_val(sp, "ActionOnTimeout"); | |
1402 | if (val != NULL) { | |
1403 | if (!strcasecmp(val, "Reset")) { | |
1404 | g_opts.action_on_timeout = SPDK_BDEV_NVME_TIMEOUT_ACTION_RESET; | |
1405 | } else if (!strcasecmp(val, "Abort")) { | |
1406 | g_opts.action_on_timeout = SPDK_BDEV_NVME_TIMEOUT_ACTION_ABORT; | |
1407 | } | |
1408 | } else { | |
1409 | /* Handle old name for backward compatibility */ | |
1410 | val = spdk_conf_section_get_val(sp, "ResetControllerOnTimeout"); | |
1411 | if (val) { | |
1412 | SPDK_WARNLOG("ResetControllerOnTimeout was renamed to ActionOnTimeout\n"); | |
1413 | SPDK_WARNLOG("Please update your configuration file\n"); | |
1414 | ||
1415 | if (spdk_conf_section_get_boolval(sp, "ResetControllerOnTimeout", false)) { | |
1416 | g_opts.action_on_timeout = SPDK_BDEV_NVME_TIMEOUT_ACTION_RESET; | |
1417 | } | |
1418 | } | |
1419 | } | |
1420 | } | |
1421 | ||
1422 | intval = spdk_conf_section_get_intval(sp, "AdminPollRate"); | |
1423 | if (intval > 0) { | |
1424 | g_opts.nvme_adminq_poll_period_us = intval; | |
1425 | } | |
1426 | ||
9f95a23c TL |
1427 | intval = spdk_conf_section_get_intval(sp, "IOPollRate"); |
1428 | if (intval > 0) { | |
1429 | g_opts.nvme_ioq_poll_period_us = intval; | |
1430 | } | |
1431 | ||
11fdf7f2 TL |
1432 | if (spdk_process_is_primary()) { |
1433 | hotplug_enabled = spdk_conf_section_get_boolval(sp, "HotplugEnable", false); | |
1434 | } | |
1435 | ||
1436 | hotplug_period = spdk_conf_section_get_intval(sp, "HotplugPollRate"); | |
9f95a23c TL |
1437 | if (hotplug_period < 0) { |
1438 | hotplug_period = 0; | |
1439 | } | |
11fdf7f2 TL |
1440 | |
1441 | g_nvme_hostnqn = spdk_conf_section_get_val(sp, "HostNQN"); | |
1442 | probe_ctx->hostnqn = g_nvme_hostnqn; | |
1443 | ||
1444 | for (i = 0; i < NVME_MAX_CONTROLLERS; i++) { | |
1445 | val = spdk_conf_section_get_nmval(sp, "TransportID", i, 0); | |
1446 | if (val == NULL) { | |
1447 | break; | |
1448 | } | |
1449 | ||
1450 | rc = spdk_nvme_transport_id_parse(&probe_ctx->trids[i], val); | |
1451 | if (rc < 0) { | |
1452 | SPDK_ERRLOG("Unable to parse TransportID: %s\n", val); | |
1453 | rc = -1; | |
1454 | goto end; | |
1455 | } | |
1456 | ||
9f95a23c TL |
1457 | rc = spdk_nvme_host_id_parse(&probe_ctx->hostids[i], val); |
1458 | if (rc < 0) { | |
1459 | SPDK_ERRLOG("Unable to parse HostID: %s\n", val); | |
1460 | rc = -1; | |
1461 | goto end; | |
1462 | } | |
1463 | ||
11fdf7f2 TL |
1464 | val = spdk_conf_section_get_nmval(sp, "TransportID", i, 1); |
1465 | if (val == NULL) { | |
1466 | SPDK_ERRLOG("No name provided for TransportID\n"); | |
1467 | rc = -1; | |
1468 | goto end; | |
1469 | } | |
1470 | ||
1471 | probe_ctx->names[i] = val; | |
9f95a23c TL |
1472 | |
1473 | val = spdk_conf_section_get_nmval(sp, "TransportID", i, 2); | |
1474 | if (val != NULL) { | |
1475 | rc = spdk_nvme_prchk_flags_parse(&probe_ctx->prchk_flags[i], val); | |
1476 | if (rc < 0) { | |
1477 | SPDK_ERRLOG("Unable to parse prchk: %s\n", val); | |
1478 | rc = -1; | |
1479 | goto end; | |
1480 | } | |
1481 | } | |
1482 | ||
11fdf7f2 TL |
1483 | probe_ctx->count++; |
1484 | ||
1485 | if (probe_ctx->trids[i].trtype != SPDK_NVME_TRANSPORT_PCIE) { | |
1486 | struct spdk_nvme_ctrlr *ctrlr; | |
1487 | struct spdk_nvme_ctrlr_opts opts; | |
1488 | ||
9f95a23c | 1489 | if (nvme_bdev_ctrlr_get(&probe_ctx->trids[i])) { |
11fdf7f2 TL |
1490 | SPDK_ERRLOG("A controller with the provided trid (traddr: %s) already exists.\n", |
1491 | probe_ctx->trids[i].traddr); | |
1492 | rc = -1; | |
1493 | goto end; | |
1494 | } | |
1495 | ||
1496 | if (probe_ctx->trids[i].subnqn[0] == '\0') { | |
1497 | SPDK_ERRLOG("Need to provide subsystem nqn\n"); | |
1498 | rc = -1; | |
1499 | goto end; | |
1500 | } | |
1501 | ||
1502 | spdk_nvme_ctrlr_get_default_ctrlr_opts(&opts, sizeof(opts)); | |
1503 | ||
1504 | if (probe_ctx->hostnqn != NULL) { | |
1505 | snprintf(opts.hostnqn, sizeof(opts.hostnqn), "%s", probe_ctx->hostnqn); | |
1506 | } | |
1507 | ||
9f95a23c TL |
1508 | if (probe_ctx->hostids[i].hostaddr[0] != '\0') { |
1509 | snprintf(opts.src_addr, sizeof(opts.src_addr), "%s", probe_ctx->hostids[i].hostaddr); | |
1510 | } | |
1511 | ||
1512 | if (probe_ctx->hostids[i].hostsvcid[0] != '\0') { | |
1513 | snprintf(opts.src_svcid, sizeof(opts.src_svcid), "%s", probe_ctx->hostids[i].hostsvcid); | |
1514 | } | |
1515 | ||
11fdf7f2 TL |
1516 | ctrlr = spdk_nvme_connect(&probe_ctx->trids[i], &opts, sizeof(opts)); |
1517 | if (ctrlr == NULL) { | |
1518 | SPDK_ERRLOG("Unable to connect to provided trid (traddr: %s)\n", | |
1519 | probe_ctx->trids[i].traddr); | |
1520 | rc = -1; | |
1521 | goto end; | |
1522 | } | |
1523 | ||
9f95a23c | 1524 | rc = create_ctrlr(ctrlr, probe_ctx->names[i], &probe_ctx->trids[i], 0); |
11fdf7f2 TL |
1525 | if (rc) { |
1526 | goto end; | |
1527 | } | |
1528 | } else { | |
1529 | local_nvme_num++; | |
1530 | } | |
1531 | } | |
1532 | ||
1533 | if (local_nvme_num > 0) { | |
1534 | /* used to probe local NVMe device */ | |
1535 | if (spdk_nvme_probe(NULL, probe_ctx, probe_cb, attach_cb, NULL)) { | |
1536 | rc = -1; | |
1537 | goto end; | |
1538 | } | |
1539 | ||
1540 | for (i = 0; i < probe_ctx->count; i++) { | |
1541 | if (probe_ctx->trids[i].trtype != SPDK_NVME_TRANSPORT_PCIE) { | |
1542 | continue; | |
1543 | } | |
1544 | ||
9f95a23c | 1545 | if (!nvme_bdev_ctrlr_get(&probe_ctx->trids[i])) { |
11fdf7f2 TL |
1546 | SPDK_ERRLOG("NVMe SSD \"%s\" could not be found.\n", probe_ctx->trids[i].traddr); |
1547 | SPDK_ERRLOG("Check PCIe BDF and that it is attached to UIO/VFIO driver.\n"); | |
1548 | } | |
1549 | } | |
1550 | } | |
1551 | ||
1552 | rc = spdk_bdev_nvme_set_hotplug(hotplug_enabled, hotplug_period, NULL, NULL); | |
1553 | if (rc) { | |
1554 | SPDK_ERRLOG("Failed to setup hotplug (%d): %s", rc, spdk_strerror(rc)); | |
1555 | rc = -1; | |
1556 | } | |
1557 | end: | |
1558 | spdk_nvme_retry_count = g_opts.retry_count; | |
1559 | ||
1560 | free(probe_ctx); | |
1561 | return rc; | |
1562 | } | |
1563 | ||
1564 | static void | |
1565 | bdev_nvme_library_fini(void) | |
1566 | { | |
9f95a23c TL |
1567 | struct nvme_bdev_ctrlr *nvme_bdev_ctrlr, *tmp; |
1568 | struct nvme_probe_skip_entry *entry, *entry_tmp; | |
1569 | ||
11fdf7f2 | 1570 | spdk_poller_unregister(&g_hotplug_poller); |
9f95a23c TL |
1571 | free(g_hotplug_probe_ctx); |
1572 | ||
1573 | TAILQ_FOREACH_SAFE(entry, &g_skipped_nvme_ctrlrs, tailq, entry_tmp) { | |
1574 | TAILQ_REMOVE(&g_skipped_nvme_ctrlrs, entry, tailq); | |
1575 | free(entry); | |
1576 | } | |
1577 | ||
1578 | pthread_mutex_lock(&g_bdev_nvme_mutex); | |
1579 | TAILQ_FOREACH_SAFE(nvme_bdev_ctrlr, &g_nvme_bdev_ctrlrs, tailq, tmp) { | |
1580 | if (nvme_bdev_ctrlr->ref > 0) { | |
1581 | SPDK_ERRLOG("Controller %s is still referenced, can't destroy it\n", | |
1582 | nvme_bdev_ctrlr->name); | |
1583 | continue; | |
1584 | } | |
1585 | ||
1586 | if (nvme_bdev_ctrlr->destruct) { | |
1587 | /* This controller's destruction was already started | |
1588 | * before the application started shutting down | |
1589 | */ | |
1590 | continue; | |
1591 | } | |
1592 | ||
1593 | nvme_bdev_ctrlr->destruct = true; | |
1594 | pthread_mutex_unlock(&g_bdev_nvme_mutex); | |
1595 | bdev_nvme_ctrlr_destruct(nvme_bdev_ctrlr); | |
1596 | pthread_mutex_lock(&g_bdev_nvme_mutex); | |
1597 | } | |
1598 | pthread_mutex_unlock(&g_bdev_nvme_mutex); | |
11fdf7f2 TL |
1599 | } |
1600 | ||
9f95a23c TL |
1601 | static void |
1602 | nvme_ctrlr_create_bdevs(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr) | |
11fdf7f2 TL |
1603 | { |
1604 | int rc; | |
1605 | int bdev_created = 0; | |
1606 | uint32_t nsid; | |
1607 | ||
9f95a23c TL |
1608 | for (nsid = spdk_nvme_ctrlr_get_first_active_ns(nvme_bdev_ctrlr->ctrlr); |
1609 | nsid != 0; nsid = spdk_nvme_ctrlr_get_next_active_ns(nvme_bdev_ctrlr->ctrlr, nsid)) { | |
1610 | rc = nvme_ctrlr_create_bdev(nvme_bdev_ctrlr, nsid); | |
11fdf7f2 TL |
1611 | if (rc == 0) { |
1612 | bdev_created++; | |
9f95a23c TL |
1613 | } else { |
1614 | SPDK_NOTICELOG("Failed to create bdev for namespace %u of %s\n", nsid, nvme_bdev_ctrlr->name); | |
11fdf7f2 TL |
1615 | } |
1616 | } | |
1617 | ||
9f95a23c TL |
1618 | if (bdev_created == 0) { |
1619 | SPDK_NOTICELOG("No bdev is created for NVMe controller %s\n", nvme_bdev_ctrlr->name); | |
1620 | } | |
1621 | } | |
1622 | ||
1623 | static void | |
1624 | bdev_nvme_verify_pi_error(struct spdk_bdev_io *bdev_io) | |
1625 | { | |
1626 | struct spdk_bdev *bdev = bdev_io->bdev; | |
1627 | struct spdk_dif_ctx dif_ctx; | |
1628 | struct spdk_dif_error err_blk = {}; | |
1629 | int rc; | |
1630 | ||
1631 | rc = spdk_dif_ctx_init(&dif_ctx, | |
1632 | bdev->blocklen, bdev->md_len, bdev->md_interleave, | |
1633 | bdev->dif_is_head_of_md, bdev->dif_type, bdev->dif_check_flags, | |
1634 | bdev_io->u.bdev.offset_blocks, 0, 0, 0, 0); | |
1635 | if (rc != 0) { | |
1636 | SPDK_ERRLOG("Initialization of DIF context failed\n"); | |
1637 | return; | |
1638 | } | |
1639 | ||
1640 | if (bdev->md_interleave) { | |
1641 | rc = spdk_dif_verify(bdev_io->u.bdev.iovs, bdev_io->u.bdev.iovcnt, | |
1642 | bdev_io->u.bdev.num_blocks, &dif_ctx, &err_blk); | |
1643 | } else { | |
1644 | struct iovec md_iov = { | |
1645 | .iov_base = bdev_io->u.bdev.md_buf, | |
1646 | .iov_len = bdev_io->u.bdev.num_blocks * bdev->md_len, | |
1647 | }; | |
1648 | ||
1649 | rc = spdk_dix_verify(bdev_io->u.bdev.iovs, bdev_io->u.bdev.iovcnt, | |
1650 | &md_iov, bdev_io->u.bdev.num_blocks, &dif_ctx, &err_blk); | |
1651 | } | |
1652 | ||
1653 | if (rc != 0) { | |
1654 | SPDK_ERRLOG("DIF error detected. type=%d, offset=%" PRIu32 "\n", | |
1655 | err_blk.err_type, err_blk.err_offset); | |
1656 | } else { | |
1657 | SPDK_ERRLOG("Hardware reported PI error but SPDK could not find any.\n"); | |
1658 | } | |
1659 | } | |
1660 | ||
1661 | static void | |
1662 | bdev_nvme_no_pi_readv_done(void *ref, const struct spdk_nvme_cpl *cpl) | |
1663 | { | |
1664 | struct nvme_bdev_io *bio = ref; | |
1665 | struct spdk_bdev_io *bdev_io = spdk_bdev_io_from_ctx(bio); | |
1666 | ||
1667 | if (spdk_nvme_cpl_is_success(cpl)) { | |
1668 | /* Run PI verification for read data buffer. */ | |
1669 | bdev_nvme_verify_pi_error(bdev_io); | |
1670 | } | |
1671 | ||
1672 | /* Return original completion status */ | |
1673 | spdk_bdev_io_complete_nvme_status(bdev_io, bio->cpl.status.sct, | |
1674 | bio->cpl.status.sc); | |
1675 | } | |
1676 | ||
1677 | static void | |
1678 | bdev_nvme_readv_done(void *ref, const struct spdk_nvme_cpl *cpl) | |
1679 | { | |
1680 | struct nvme_bdev_io *bio = ref; | |
1681 | struct spdk_bdev_io *bdev_io = spdk_bdev_io_from_ctx(bio); | |
1682 | int ret; | |
1683 | ||
1684 | if (spdk_unlikely(spdk_nvme_cpl_is_pi_error(cpl))) { | |
1685 | SPDK_ERRLOG("readv completed with PI error (sct=%d, sc=%d)\n", | |
1686 | cpl->status.sct, cpl->status.sc); | |
1687 | ||
1688 | /* Save completion status to use after verifying PI error. */ | |
1689 | bio->cpl = *cpl; | |
1690 | ||
1691 | /* Read without PI checking to verify PI error. */ | |
1692 | ret = bdev_nvme_no_pi_readv((struct nvme_bdev *)bdev_io->bdev->ctxt, | |
1693 | spdk_bdev_io_get_io_channel(bdev_io), | |
1694 | bio, | |
1695 | bdev_io->u.bdev.iovs, | |
1696 | bdev_io->u.bdev.iovcnt, | |
1697 | bdev_io->u.bdev.md_buf, | |
1698 | bdev_io->u.bdev.num_blocks, | |
1699 | bdev_io->u.bdev.offset_blocks); | |
1700 | if (ret == 0) { | |
1701 | return; | |
1702 | } | |
1703 | } | |
1704 | ||
1705 | spdk_bdev_io_complete_nvme_status(bdev_io, cpl->status.sct, cpl->status.sc); | |
1706 | } | |
1707 | ||
1708 | static void | |
1709 | bdev_nvme_writev_done(void *ref, const struct spdk_nvme_cpl *cpl) | |
1710 | { | |
1711 | struct spdk_bdev_io *bdev_io = spdk_bdev_io_from_ctx((struct nvme_bdev_io *)ref); | |
1712 | ||
1713 | if (spdk_nvme_cpl_is_pi_error(cpl)) { | |
1714 | SPDK_ERRLOG("writev completed with PI error (sct=%d, sc=%d)\n", | |
1715 | cpl->status.sct, cpl->status.sc); | |
1716 | /* Run PI verification for write data buffer if PI error is detected. */ | |
1717 | bdev_nvme_verify_pi_error(bdev_io); | |
1718 | } | |
1719 | ||
1720 | spdk_bdev_io_complete_nvme_status(bdev_io, cpl->status.sct, cpl->status.sc); | |
11fdf7f2 TL |
1721 | } |
1722 | ||
1723 | static void | |
1724 | bdev_nvme_queued_done(void *ref, const struct spdk_nvme_cpl *cpl) | |
1725 | { | |
1726 | struct spdk_bdev_io *bdev_io = spdk_bdev_io_from_ctx((struct nvme_bdev_io *)ref); | |
1727 | ||
1728 | spdk_bdev_io_complete_nvme_status(bdev_io, cpl->status.sct, cpl->status.sc); | |
1729 | } | |
1730 | ||
1731 | static void | |
1732 | bdev_nvme_admin_passthru_completion(void *ctx) | |
1733 | { | |
1734 | struct nvme_bdev_io *bio = ctx; | |
1735 | struct spdk_bdev_io *bdev_io = spdk_bdev_io_from_ctx(bio); | |
1736 | ||
1737 | spdk_bdev_io_complete_nvme_status(bdev_io, | |
1738 | bio->cpl.status.sct, bio->cpl.status.sc); | |
1739 | } | |
1740 | ||
1741 | static void | |
1742 | bdev_nvme_admin_passthru_done(void *ref, const struct spdk_nvme_cpl *cpl) | |
1743 | { | |
1744 | struct nvme_bdev_io *bio = ref; | |
1745 | ||
1746 | bio->cpl = *cpl; | |
1747 | spdk_thread_send_msg(bio->orig_thread, bdev_nvme_admin_passthru_completion, bio); | |
1748 | } | |
1749 | ||
1750 | static void | |
1751 | bdev_nvme_queued_reset_sgl(void *ref, uint32_t sgl_offset) | |
1752 | { | |
1753 | struct nvme_bdev_io *bio = ref; | |
1754 | struct iovec *iov; | |
1755 | ||
1756 | bio->iov_offset = sgl_offset; | |
1757 | for (bio->iovpos = 0; bio->iovpos < bio->iovcnt; bio->iovpos++) { | |
1758 | iov = &bio->iovs[bio->iovpos]; | |
1759 | if (bio->iov_offset < iov->iov_len) { | |
1760 | break; | |
1761 | } | |
1762 | ||
1763 | bio->iov_offset -= iov->iov_len; | |
1764 | } | |
1765 | } | |
1766 | ||
1767 | static int | |
1768 | bdev_nvme_queued_next_sge(void *ref, void **address, uint32_t *length) | |
1769 | { | |
1770 | struct nvme_bdev_io *bio = ref; | |
1771 | struct iovec *iov; | |
1772 | ||
1773 | assert(bio->iovpos < bio->iovcnt); | |
1774 | ||
1775 | iov = &bio->iovs[bio->iovpos]; | |
1776 | ||
1777 | *address = iov->iov_base; | |
1778 | *length = iov->iov_len; | |
1779 | ||
1780 | if (bio->iov_offset) { | |
1781 | assert(bio->iov_offset <= iov->iov_len); | |
1782 | *address += bio->iov_offset; | |
1783 | *length -= bio->iov_offset; | |
1784 | } | |
1785 | ||
1786 | bio->iov_offset += *length; | |
1787 | if (bio->iov_offset == iov->iov_len) { | |
1788 | bio->iovpos++; | |
1789 | bio->iov_offset = 0; | |
1790 | } | |
1791 | ||
1792 | return 0; | |
1793 | } | |
1794 | ||
1795 | static int | |
9f95a23c TL |
1796 | bdev_nvme_no_pi_readv(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, |
1797 | struct nvme_bdev_io *bio, struct iovec *iov, int iovcnt, | |
1798 | void *md, uint64_t lba_count, uint64_t lba) | |
11fdf7f2 | 1799 | { |
9f95a23c | 1800 | struct nvme_io_channel *nvme_ch = spdk_io_channel_get_ctx(ch); |
11fdf7f2 TL |
1801 | int rc; |
1802 | ||
9f95a23c TL |
1803 | SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "read %lu blocks with offset %#lx without PI check\n", |
1804 | lba_count, lba); | |
1805 | ||
11fdf7f2 TL |
1806 | bio->iovs = iov; |
1807 | bio->iovcnt = iovcnt; | |
1808 | bio->iovpos = 0; | |
1809 | bio->iov_offset = 0; | |
1810 | ||
9f95a23c TL |
1811 | rc = spdk_nvme_ns_cmd_readv_with_md(nbdev->ns, nvme_ch->qpair, lba, lba_count, |
1812 | bdev_nvme_no_pi_readv_done, bio, 0, | |
1813 | bdev_nvme_queued_reset_sgl, bdev_nvme_queued_next_sge, | |
1814 | md, 0, 0); | |
1815 | ||
1816 | if (rc != 0 && rc != -ENOMEM) { | |
1817 | SPDK_ERRLOG("no_pi_readv failed: rc = %d\n", rc); | |
1818 | } | |
1819 | return rc; | |
1820 | } | |
1821 | ||
1822 | static int | |
1823 | bdev_nvme_readv(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
1824 | struct nvme_bdev_io *bio, struct iovec *iov, int iovcnt, | |
1825 | void *md, uint64_t lba_count, uint64_t lba) | |
1826 | { | |
1827 | struct nvme_io_channel *nvme_ch = spdk_io_channel_get_ctx(ch); | |
1828 | int rc; | |
1829 | ||
1830 | SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "read %lu blocks with offset %#lx\n", | |
1831 | lba_count, lba); | |
1832 | ||
1833 | bio->iovs = iov; | |
1834 | bio->iovcnt = iovcnt; | |
1835 | bio->iovpos = 0; | |
1836 | bio->iov_offset = 0; | |
1837 | ||
1838 | rc = spdk_nvme_ns_cmd_readv_with_md(nbdev->ns, nvme_ch->qpair, lba, lba_count, | |
1839 | bdev_nvme_readv_done, bio, nbdev->disk.dif_check_flags, | |
1840 | bdev_nvme_queued_reset_sgl, bdev_nvme_queued_next_sge, | |
1841 | md, 0, 0); | |
1842 | ||
1843 | if (rc != 0 && rc != -ENOMEM) { | |
1844 | SPDK_ERRLOG("readv failed: rc = %d\n", rc); | |
11fdf7f2 | 1845 | } |
9f95a23c TL |
1846 | return rc; |
1847 | } | |
1848 | ||
1849 | static int | |
1850 | bdev_nvme_writev(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
1851 | struct nvme_bdev_io *bio, | |
1852 | struct iovec *iov, int iovcnt, void *md, uint64_t lba_count, uint64_t lba) | |
1853 | { | |
1854 | struct nvme_io_channel *nvme_ch = spdk_io_channel_get_ctx(ch); | |
1855 | int rc; | |
1856 | ||
1857 | SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "write %lu blocks with offset %#lx\n", | |
1858 | lba_count, lba); | |
1859 | ||
1860 | bio->iovs = iov; | |
1861 | bio->iovcnt = iovcnt; | |
1862 | bio->iovpos = 0; | |
1863 | bio->iov_offset = 0; | |
1864 | ||
1865 | rc = spdk_nvme_ns_cmd_writev_with_md(nbdev->ns, nvme_ch->qpair, lba, lba_count, | |
1866 | bdev_nvme_writev_done, bio, nbdev->disk.dif_check_flags, | |
1867 | bdev_nvme_queued_reset_sgl, bdev_nvme_queued_next_sge, | |
1868 | md, 0, 0); | |
11fdf7f2 TL |
1869 | |
1870 | if (rc != 0 && rc != -ENOMEM) { | |
9f95a23c | 1871 | SPDK_ERRLOG("writev failed: rc = %d\n", rc); |
11fdf7f2 TL |
1872 | } |
1873 | return rc; | |
1874 | } | |
1875 | ||
1876 | static int | |
1877 | bdev_nvme_unmap(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
1878 | struct nvme_bdev_io *bio, | |
1879 | uint64_t offset_blocks, | |
1880 | uint64_t num_blocks) | |
1881 | { | |
1882 | struct nvme_io_channel *nvme_ch = spdk_io_channel_get_ctx(ch); | |
1883 | struct spdk_nvme_dsm_range dsm_ranges[SPDK_NVME_DATASET_MANAGEMENT_MAX_RANGES]; | |
1884 | struct spdk_nvme_dsm_range *range; | |
1885 | uint64_t offset, remaining; | |
1886 | uint64_t num_ranges_u64; | |
1887 | uint16_t num_ranges; | |
1888 | int rc; | |
1889 | ||
1890 | num_ranges_u64 = (num_blocks + SPDK_NVME_DATASET_MANAGEMENT_RANGE_MAX_BLOCKS - 1) / | |
1891 | SPDK_NVME_DATASET_MANAGEMENT_RANGE_MAX_BLOCKS; | |
1892 | if (num_ranges_u64 > SPDK_COUNTOF(dsm_ranges)) { | |
1893 | SPDK_ERRLOG("Unmap request for %" PRIu64 " blocks is too large\n", num_blocks); | |
1894 | return -EINVAL; | |
1895 | } | |
1896 | num_ranges = (uint16_t)num_ranges_u64; | |
1897 | ||
1898 | offset = offset_blocks; | |
1899 | remaining = num_blocks; | |
1900 | range = &dsm_ranges[0]; | |
1901 | ||
1902 | /* Fill max-size ranges until the remaining blocks fit into one range */ | |
1903 | while (remaining > SPDK_NVME_DATASET_MANAGEMENT_RANGE_MAX_BLOCKS) { | |
1904 | range->attributes.raw = 0; | |
1905 | range->length = SPDK_NVME_DATASET_MANAGEMENT_RANGE_MAX_BLOCKS; | |
1906 | range->starting_lba = offset; | |
1907 | ||
1908 | offset += SPDK_NVME_DATASET_MANAGEMENT_RANGE_MAX_BLOCKS; | |
1909 | remaining -= SPDK_NVME_DATASET_MANAGEMENT_RANGE_MAX_BLOCKS; | |
1910 | range++; | |
1911 | } | |
1912 | ||
1913 | /* Final range describes the remaining blocks */ | |
1914 | range->attributes.raw = 0; | |
1915 | range->length = remaining; | |
1916 | range->starting_lba = offset; | |
1917 | ||
1918 | rc = spdk_nvme_ns_cmd_dataset_management(nbdev->ns, nvme_ch->qpair, | |
1919 | SPDK_NVME_DSM_ATTR_DEALLOCATE, | |
1920 | dsm_ranges, num_ranges, | |
1921 | bdev_nvme_queued_done, bio); | |
1922 | ||
1923 | return rc; | |
1924 | } | |
1925 | ||
1926 | static int | |
1927 | bdev_nvme_admin_passthru(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
1928 | struct nvme_bdev_io *bio, | |
1929 | struct spdk_nvme_cmd *cmd, void *buf, size_t nbytes) | |
1930 | { | |
9f95a23c | 1931 | uint32_t max_xfer_size = spdk_nvme_ctrlr_get_max_xfer_size(nbdev->nvme_bdev_ctrlr->ctrlr); |
11fdf7f2 TL |
1932 | |
1933 | if (nbytes > max_xfer_size) { | |
1934 | SPDK_ERRLOG("nbytes is greater than MDTS %" PRIu32 ".\n", max_xfer_size); | |
1935 | return -EINVAL; | |
1936 | } | |
1937 | ||
1938 | bio->orig_thread = spdk_io_channel_get_thread(ch); | |
1939 | ||
9f95a23c | 1940 | return spdk_nvme_ctrlr_cmd_admin_raw(nbdev->nvme_bdev_ctrlr->ctrlr, cmd, buf, |
11fdf7f2 TL |
1941 | (uint32_t)nbytes, bdev_nvme_admin_passthru_done, bio); |
1942 | } | |
1943 | ||
1944 | static int | |
1945 | bdev_nvme_io_passthru(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
1946 | struct nvme_bdev_io *bio, | |
1947 | struct spdk_nvme_cmd *cmd, void *buf, size_t nbytes) | |
1948 | { | |
1949 | struct nvme_io_channel *nvme_ch = spdk_io_channel_get_ctx(ch); | |
9f95a23c | 1950 | uint32_t max_xfer_size = spdk_nvme_ctrlr_get_max_xfer_size(nbdev->nvme_bdev_ctrlr->ctrlr); |
11fdf7f2 TL |
1951 | |
1952 | if (nbytes > max_xfer_size) { | |
1953 | SPDK_ERRLOG("nbytes is greater than MDTS %" PRIu32 ".\n", max_xfer_size); | |
1954 | return -EINVAL; | |
1955 | } | |
1956 | ||
1957 | /* | |
1958 | * Each NVMe bdev is a specific namespace, and all NVMe I/O commands require a nsid, | |
1959 | * so fill it out automatically. | |
1960 | */ | |
1961 | cmd->nsid = spdk_nvme_ns_get_id(nbdev->ns); | |
1962 | ||
9f95a23c | 1963 | return spdk_nvme_ctrlr_cmd_io_raw(nbdev->nvme_bdev_ctrlr->ctrlr, nvme_ch->qpair, cmd, buf, |
11fdf7f2 TL |
1964 | (uint32_t)nbytes, bdev_nvme_queued_done, bio); |
1965 | } | |
1966 | ||
1967 | static int | |
1968 | bdev_nvme_io_passthru_md(struct nvme_bdev *nbdev, struct spdk_io_channel *ch, | |
1969 | struct nvme_bdev_io *bio, | |
1970 | struct spdk_nvme_cmd *cmd, void *buf, size_t nbytes, void *md_buf, size_t md_len) | |
1971 | { | |
1972 | struct nvme_io_channel *nvme_ch = spdk_io_channel_get_ctx(ch); | |
1973 | size_t nr_sectors = nbytes / spdk_nvme_ns_get_extended_sector_size(nbdev->ns); | |
9f95a23c | 1974 | uint32_t max_xfer_size = spdk_nvme_ctrlr_get_max_xfer_size(nbdev->nvme_bdev_ctrlr->ctrlr); |
11fdf7f2 TL |
1975 | |
1976 | if (nbytes > max_xfer_size) { | |
1977 | SPDK_ERRLOG("nbytes is greater than MDTS %" PRIu32 ".\n", max_xfer_size); | |
1978 | return -EINVAL; | |
1979 | } | |
1980 | ||
1981 | if (md_len != nr_sectors * spdk_nvme_ns_get_md_size(nbdev->ns)) { | |
1982 | SPDK_ERRLOG("invalid meta data buffer size\n"); | |
1983 | return -EINVAL; | |
1984 | } | |
1985 | ||
1986 | /* | |
1987 | * Each NVMe bdev is a specific namespace, and all NVMe I/O commands require a nsid, | |
1988 | * so fill it out automatically. | |
1989 | */ | |
1990 | cmd->nsid = spdk_nvme_ns_get_id(nbdev->ns); | |
1991 | ||
9f95a23c | 1992 | return spdk_nvme_ctrlr_cmd_io_raw_with_md(nbdev->nvme_bdev_ctrlr->ctrlr, nvme_ch->qpair, cmd, buf, |
11fdf7f2 TL |
1993 | (uint32_t)nbytes, md_buf, bdev_nvme_queued_done, bio); |
1994 | } | |
1995 | ||
1996 | static void | |
1997 | bdev_nvme_get_spdk_running_config(FILE *fp) | |
1998 | { | |
9f95a23c | 1999 | struct nvme_bdev_ctrlr *nvme_bdev_ctrlr; |
11fdf7f2 TL |
2000 | |
2001 | fprintf(fp, "\n[Nvme]"); | |
2002 | fprintf(fp, "\n" | |
2003 | "# NVMe Device Whitelist\n" | |
2004 | "# Users may specify which NVMe devices to claim by their transport id.\n" | |
2005 | "# See spdk_nvme_transport_id_parse() in spdk/nvme.h for the correct format.\n" | |
2006 | "# The second argument is the assigned name, which can be referenced from\n" | |
2007 | "# other sections in the configuration file. For NVMe devices, a namespace\n" | |
2008 | "# is automatically appended to each name in the format <YourName>nY, where\n" | |
2009 | "# Y is the NSID (starts at 1).\n"); | |
2010 | ||
9f95a23c | 2011 | TAILQ_FOREACH(nvme_bdev_ctrlr, &g_nvme_bdev_ctrlrs, tailq) { |
11fdf7f2 | 2012 | const char *trtype; |
9f95a23c | 2013 | const char *prchk_flags; |
11fdf7f2 | 2014 | |
9f95a23c | 2015 | trtype = spdk_nvme_transport_id_trtype_str(nvme_bdev_ctrlr->trid.trtype); |
11fdf7f2 TL |
2016 | if (!trtype) { |
2017 | continue; | |
2018 | } | |
2019 | ||
9f95a23c | 2020 | if (nvme_bdev_ctrlr->trid.trtype == SPDK_NVME_TRANSPORT_PCIE) { |
11fdf7f2 TL |
2021 | fprintf(fp, "TransportID \"trtype:%s traddr:%s\" %s\n", |
2022 | trtype, | |
9f95a23c | 2023 | nvme_bdev_ctrlr->trid.traddr, nvme_bdev_ctrlr->name); |
11fdf7f2 TL |
2024 | } else { |
2025 | const char *adrfam; | |
2026 | ||
9f95a23c TL |
2027 | adrfam = spdk_nvme_transport_id_adrfam_str(nvme_bdev_ctrlr->trid.adrfam); |
2028 | prchk_flags = spdk_nvme_prchk_flags_str(nvme_bdev_ctrlr->prchk_flags); | |
11fdf7f2 TL |
2029 | |
2030 | if (adrfam) { | |
9f95a23c | 2031 | fprintf(fp, "TransportID \"trtype:%s adrfam:%s traddr:%s trsvcid:%s subnqn:%s\" %s", |
11fdf7f2 | 2032 | trtype, adrfam, |
9f95a23c TL |
2033 | nvme_bdev_ctrlr->trid.traddr, nvme_bdev_ctrlr->trid.trsvcid, |
2034 | nvme_bdev_ctrlr->trid.subnqn, nvme_bdev_ctrlr->name); | |
11fdf7f2 | 2035 | } else { |
9f95a23c | 2036 | fprintf(fp, "TransportID \"trtype:%s traddr:%s trsvcid:%s subnqn:%s\" %s", |
11fdf7f2 | 2037 | trtype, |
9f95a23c TL |
2038 | nvme_bdev_ctrlr->trid.traddr, nvme_bdev_ctrlr->trid.trsvcid, |
2039 | nvme_bdev_ctrlr->trid.subnqn, nvme_bdev_ctrlr->name); | |
11fdf7f2 TL |
2040 | } |
2041 | ||
9f95a23c TL |
2042 | if (prchk_flags) { |
2043 | fprintf(fp, " \"%s\"\n", prchk_flags); | |
2044 | } else { | |
2045 | fprintf(fp, "\n"); | |
2046 | } | |
11fdf7f2 TL |
2047 | } |
2048 | } | |
2049 | ||
2050 | fprintf(fp, "\n" | |
2051 | "# The number of attempts per I/O when an I/O fails. Do not include\n" | |
2052 | "# this key to get the default behavior.\n"); | |
2053 | fprintf(fp, "RetryCount %d\n", spdk_nvme_retry_count); | |
2054 | fprintf(fp, "\n" | |
2055 | "# Timeout for each command, in microseconds. If 0, don't track timeouts.\n"); | |
2056 | fprintf(fp, "TimeoutUsec %"PRIu64"\n", g_opts.timeout_us); | |
2057 | ||
2058 | fprintf(fp, "\n" | |
2059 | "# Action to take on command time out. Only valid when Timeout is greater\n" | |
2060 | "# than 0. This may be 'Reset' to reset the controller, 'Abort' to abort\n" | |
2061 | "# the command, or 'None' to just print a message but do nothing.\n" | |
2062 | "# Admin command timeouts will always result in a reset.\n"); | |
2063 | switch (g_opts.action_on_timeout) { | |
2064 | case SPDK_BDEV_NVME_TIMEOUT_ACTION_NONE: | |
2065 | fprintf(fp, "ActionOnTimeout None\n"); | |
2066 | break; | |
2067 | case SPDK_BDEV_NVME_TIMEOUT_ACTION_RESET: | |
2068 | fprintf(fp, "ActionOnTimeout Reset\n"); | |
2069 | break; | |
2070 | case SPDK_BDEV_NVME_TIMEOUT_ACTION_ABORT: | |
2071 | fprintf(fp, "ActionOnTimeout Abort\n"); | |
2072 | break; | |
2073 | } | |
2074 | ||
2075 | fprintf(fp, "\n" | |
2076 | "# Set how often the admin queue is polled for asynchronous events.\n" | |
2077 | "# Units in microseconds.\n"); | |
2078 | fprintf(fp, "AdminPollRate %"PRIu64"\n", g_opts.nvme_adminq_poll_period_us); | |
9f95a23c | 2079 | fprintf(fp, "IOPollRate %" PRIu64"\n", g_opts.nvme_ioq_poll_period_us); |
11fdf7f2 TL |
2080 | fprintf(fp, "\n" |
2081 | "# Disable handling of hotplug (runtime insert and remove) events,\n" | |
2082 | "# users can set to Yes if want to enable it.\n" | |
2083 | "# Default: No\n"); | |
2084 | fprintf(fp, "HotplugEnable %s\n", g_nvme_hotplug_enabled ? "Yes" : "No"); | |
2085 | fprintf(fp, "\n" | |
2086 | "# Set how often the hotplug is processed for insert and remove events." | |
2087 | "# Units in microseconds.\n"); | |
2088 | fprintf(fp, "HotplugPollRate %"PRIu64"\n", g_nvme_hotplug_poll_period_us); | |
2089 | if (g_nvme_hostnqn) { | |
2090 | fprintf(fp, "HostNQN %s\n", g_nvme_hostnqn); | |
2091 | } | |
2092 | ||
2093 | fprintf(fp, "\n"); | |
2094 | } | |
2095 | ||
2096 | static int | |
2097 | bdev_nvme_config_json(struct spdk_json_write_ctx *w) | |
2098 | { | |
9f95a23c | 2099 | struct nvme_bdev_ctrlr *nvme_bdev_ctrlr; |
11fdf7f2 TL |
2100 | struct spdk_nvme_transport_id *trid; |
2101 | const char *action; | |
2102 | ||
2103 | if (g_opts.action_on_timeout == SPDK_BDEV_NVME_TIMEOUT_ACTION_RESET) { | |
2104 | action = "reset"; | |
2105 | } else if (g_opts.action_on_timeout == SPDK_BDEV_NVME_TIMEOUT_ACTION_ABORT) { | |
2106 | action = "abort"; | |
2107 | } else { | |
2108 | action = "none"; | |
2109 | } | |
2110 | ||
2111 | spdk_json_write_object_begin(w); | |
2112 | ||
2113 | spdk_json_write_named_string(w, "method", "set_bdev_nvme_options"); | |
2114 | ||
2115 | spdk_json_write_named_object_begin(w, "params"); | |
2116 | spdk_json_write_named_string(w, "action_on_timeout", action); | |
2117 | spdk_json_write_named_uint64(w, "timeout_us", g_opts.timeout_us); | |
2118 | spdk_json_write_named_uint32(w, "retry_count", g_opts.retry_count); | |
2119 | spdk_json_write_named_uint64(w, "nvme_adminq_poll_period_us", g_opts.nvme_adminq_poll_period_us); | |
9f95a23c | 2120 | spdk_json_write_named_uint64(w, "nvme_ioq_poll_period_us", g_opts.nvme_ioq_poll_period_us); |
11fdf7f2 TL |
2121 | spdk_json_write_object_end(w); |
2122 | ||
2123 | spdk_json_write_object_end(w); | |
2124 | ||
2125 | pthread_mutex_lock(&g_bdev_nvme_mutex); | |
9f95a23c TL |
2126 | TAILQ_FOREACH(nvme_bdev_ctrlr, &g_nvme_bdev_ctrlrs, tailq) { |
2127 | ||
2128 | if (spdk_nvme_ctrlr_is_ocssd_supported(nvme_bdev_ctrlr->ctrlr)) { | |
2129 | continue; | |
2130 | } | |
2131 | ||
2132 | trid = &nvme_bdev_ctrlr->trid; | |
11fdf7f2 TL |
2133 | |
2134 | spdk_json_write_object_begin(w); | |
2135 | ||
2136 | spdk_json_write_named_string(w, "method", "construct_nvme_bdev"); | |
2137 | ||
2138 | spdk_json_write_named_object_begin(w, "params"); | |
9f95a23c TL |
2139 | spdk_json_write_named_string(w, "name", nvme_bdev_ctrlr->name); |
2140 | nvme_bdev_dump_trid_json(trid, w); | |
2141 | spdk_json_write_named_bool(w, "prchk_reftag", | |
2142 | (nvme_bdev_ctrlr->prchk_flags & SPDK_NVME_IO_FLAGS_PRCHK_REFTAG) != 0); | |
2143 | spdk_json_write_named_bool(w, "prchk_guard", | |
2144 | (nvme_bdev_ctrlr->prchk_flags & SPDK_NVME_IO_FLAGS_PRCHK_GUARD) != 0); | |
11fdf7f2 TL |
2145 | |
2146 | spdk_json_write_object_end(w); | |
2147 | ||
2148 | spdk_json_write_object_end(w); | |
2149 | } | |
2150 | ||
2151 | /* Dump as last parameter to give all NVMe bdevs chance to be constructed | |
2152 | * before enabling hotplug poller. | |
2153 | */ | |
2154 | spdk_json_write_object_begin(w); | |
2155 | spdk_json_write_named_string(w, "method", "set_bdev_nvme_hotplug"); | |
2156 | ||
2157 | spdk_json_write_named_object_begin(w, "params"); | |
2158 | spdk_json_write_named_uint64(w, "period_us", g_nvme_hotplug_poll_period_us); | |
2159 | spdk_json_write_named_bool(w, "enable", g_nvme_hotplug_enabled); | |
2160 | spdk_json_write_object_end(w); | |
2161 | ||
2162 | spdk_json_write_object_end(w); | |
2163 | ||
2164 | pthread_mutex_unlock(&g_bdev_nvme_mutex); | |
2165 | return 0; | |
2166 | } | |
2167 | ||
2168 | struct spdk_nvme_ctrlr * | |
2169 | spdk_bdev_nvme_get_ctrlr(struct spdk_bdev *bdev) | |
2170 | { | |
2171 | if (!bdev || bdev->module != &nvme_if) { | |
2172 | return NULL; | |
2173 | } | |
2174 | ||
9f95a23c | 2175 | return SPDK_CONTAINEROF(bdev, struct nvme_bdev, disk)->nvme_bdev_ctrlr->ctrlr; |
11fdf7f2 TL |
2176 | } |
2177 | ||
2178 | SPDK_LOG_REGISTER_COMPONENT("bdev_nvme", SPDK_LOG_BDEV_NVME) |