Line data Source code
1 : /* SPDX-License-Identifier: BSD-3-Clause
2 : * Copyright (C) 2018 Intel Corporation.
3 : * All rights reserved.
4 : * Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
5 : */
6 :
7 : #include "event_nvmf.h"
8 :
9 : #include "spdk/bdev.h"
10 : #include "spdk/thread.h"
11 : #include "spdk/log.h"
12 : #include "spdk/nvme.h"
13 : #include "spdk/nvmf_cmd.h"
14 : #include "spdk_internal/usdt.h"
15 :
16 : enum nvmf_tgt_state {
17 : NVMF_TGT_INIT_NONE = 0,
18 : NVMF_TGT_INIT_CREATE_TARGET,
19 : NVMF_TGT_INIT_CREATE_POLL_GROUPS,
20 : NVMF_TGT_INIT_START_SUBSYSTEMS,
21 : NVMF_TGT_RUNNING,
22 : NVMF_TGT_FINI_STOP_SUBSYSTEMS,
23 : NVMF_TGT_FINI_DESTROY_SUBSYSTEMS,
24 : NVMF_TGT_FINI_DESTROY_POLL_GROUPS,
25 : NVMF_TGT_FINI_DESTROY_TARGET,
26 : NVMF_TGT_STOPPED,
27 : NVMF_TGT_ERROR,
28 : };
29 :
30 : struct nvmf_tgt_poll_group {
31 : struct spdk_nvmf_poll_group *group;
32 : struct spdk_thread *thread;
33 : TAILQ_ENTRY(nvmf_tgt_poll_group) link;
34 : };
35 :
36 : struct spdk_nvmf_tgt_conf g_spdk_nvmf_tgt_conf = {
37 : .admin_passthru.identify_ctrlr = false
38 : };
39 :
40 : struct spdk_cpuset *g_poll_groups_mask = NULL;
41 : struct spdk_nvmf_tgt *g_spdk_nvmf_tgt = NULL;
42 : uint32_t g_spdk_nvmf_tgt_max_subsystems = 0;
43 : uint16_t g_spdk_nvmf_tgt_crdt[3] = {0, 0, 0};
44 :
45 : static enum nvmf_tgt_state g_tgt_state;
46 :
47 : static struct spdk_thread *g_tgt_init_thread = NULL;
48 : static struct spdk_thread *g_tgt_fini_thread = NULL;
49 :
50 : static TAILQ_HEAD(, nvmf_tgt_poll_group) g_poll_groups = TAILQ_HEAD_INITIALIZER(g_poll_groups);
51 : static size_t g_num_poll_groups = 0;
52 :
53 : static void nvmf_tgt_advance_state(void);
54 :
55 : static void
56 0 : nvmf_shutdown_cb(void *arg1)
57 : {
58 : /* Still in initialization state, defer shutdown operation */
59 0 : if (g_tgt_state < NVMF_TGT_RUNNING) {
60 0 : spdk_thread_send_msg(spdk_get_thread(), nvmf_shutdown_cb, NULL);
61 0 : return;
62 0 : } else if (g_tgt_state != NVMF_TGT_RUNNING && g_tgt_state != NVMF_TGT_ERROR) {
63 : /* Already in Shutdown status, ignore the signal */
64 0 : return;
65 : }
66 :
67 0 : if (g_tgt_state == NVMF_TGT_ERROR) {
68 : /* Parse configuration error */
69 0 : g_tgt_state = NVMF_TGT_FINI_DESTROY_TARGET;
70 : } else {
71 0 : g_tgt_state = NVMF_TGT_FINI_STOP_SUBSYSTEMS;
72 : }
73 0 : nvmf_tgt_advance_state();
74 : }
75 :
76 : static void
77 0 : nvmf_subsystem_fini(void)
78 : {
79 0 : nvmf_shutdown_cb(NULL);
80 0 : }
81 :
82 : static void
83 0 : _nvmf_tgt_destroy_poll_group_done(void *ctx)
84 : {
85 0 : assert(g_num_poll_groups > 0);
86 :
87 0 : if (--g_num_poll_groups == 0) {
88 0 : g_tgt_state = NVMF_TGT_FINI_DESTROY_TARGET;
89 0 : nvmf_tgt_advance_state();
90 : }
91 0 : }
92 :
93 : static void
94 0 : nvmf_tgt_destroy_poll_group_done(void *cb_arg, int status)
95 : {
96 0 : struct nvmf_tgt_poll_group *pg = cb_arg;
97 :
98 0 : free(pg);
99 :
100 0 : spdk_thread_send_msg(g_tgt_fini_thread, _nvmf_tgt_destroy_poll_group_done, NULL);
101 :
102 0 : spdk_thread_exit(spdk_get_thread());
103 0 : }
104 :
105 : static void
106 0 : nvmf_tgt_destroy_poll_group(void *ctx)
107 : {
108 0 : struct nvmf_tgt_poll_group *pg = ctx;
109 :
110 0 : spdk_nvmf_poll_group_destroy(pg->group, nvmf_tgt_destroy_poll_group_done, pg);
111 0 : }
112 :
113 : static void
114 0 : nvmf_tgt_destroy_poll_groups(void)
115 : {
116 : struct nvmf_tgt_poll_group *pg, *tpg;
117 :
118 0 : g_tgt_fini_thread = spdk_get_thread();
119 0 : assert(g_tgt_fini_thread != NULL);
120 :
121 0 : TAILQ_FOREACH_SAFE(pg, &g_poll_groups, link, tpg) {
122 0 : TAILQ_REMOVE(&g_poll_groups, pg, link);
123 0 : spdk_thread_send_msg(pg->thread, nvmf_tgt_destroy_poll_group, pg);
124 : }
125 0 : }
126 :
127 : static uint32_t
128 0 : nvmf_get_cpuset_count(void)
129 : {
130 0 : if (g_poll_groups_mask) {
131 0 : return spdk_cpuset_count(g_poll_groups_mask);
132 : } else {
133 0 : return spdk_env_get_core_count();
134 : }
135 : }
136 :
137 : static void
138 0 : nvmf_tgt_create_poll_group_done(void *ctx)
139 : {
140 0 : struct nvmf_tgt_poll_group *pg = ctx;
141 :
142 0 : assert(pg);
143 :
144 0 : if (!pg->group) {
145 0 : SPDK_ERRLOG("Failed to create nvmf poll group\n");
146 : /* Change the state to error but wait for completions from all other threads */
147 0 : g_tgt_state = NVMF_TGT_ERROR;
148 : }
149 :
150 0 : TAILQ_INSERT_TAIL(&g_poll_groups, pg, link);
151 :
152 0 : assert(g_num_poll_groups < nvmf_get_cpuset_count());
153 :
154 0 : if (++g_num_poll_groups == nvmf_get_cpuset_count()) {
155 0 : if (g_tgt_state != NVMF_TGT_ERROR) {
156 0 : g_tgt_state = NVMF_TGT_INIT_START_SUBSYSTEMS;
157 : }
158 0 : nvmf_tgt_advance_state();
159 : }
160 0 : }
161 :
162 : static void
163 0 : nvmf_tgt_create_poll_group(void *ctx)
164 : {
165 : struct nvmf_tgt_poll_group *pg;
166 :
167 0 : pg = calloc(1, sizeof(*pg));
168 0 : if (!pg) {
169 0 : SPDK_ERRLOG("Not enough memory to allocate poll groups\n");
170 0 : g_tgt_state = NVMF_TGT_ERROR;
171 0 : nvmf_tgt_advance_state();
172 0 : return;
173 : }
174 :
175 0 : pg->thread = spdk_get_thread();
176 0 : pg->group = spdk_nvmf_poll_group_create(g_spdk_nvmf_tgt);
177 :
178 0 : spdk_thread_send_msg(g_tgt_init_thread, nvmf_tgt_create_poll_group_done, pg);
179 : }
180 :
181 : static void
182 0 : nvmf_tgt_create_poll_groups(void)
183 : {
184 0 : uint32_t cpu, count = 0;
185 0 : char thread_name[32];
186 : struct spdk_thread *thread;
187 :
188 0 : g_tgt_init_thread = spdk_get_thread();
189 0 : assert(g_tgt_init_thread != NULL);
190 :
191 0 : SPDK_ENV_FOREACH_CORE(cpu) {
192 0 : if (g_poll_groups_mask && !spdk_cpuset_get_cpu(g_poll_groups_mask, cpu)) {
193 0 : continue;
194 : }
195 0 : snprintf(thread_name, sizeof(thread_name), "nvmf_tgt_poll_group_%u", count++);
196 :
197 0 : thread = spdk_thread_create(thread_name, g_poll_groups_mask);
198 0 : assert(thread != NULL);
199 :
200 0 : spdk_thread_send_msg(thread, nvmf_tgt_create_poll_group, NULL);
201 : }
202 0 : }
203 :
204 : static void
205 0 : nvmf_tgt_subsystem_started(struct spdk_nvmf_subsystem *subsystem,
206 : void *cb_arg, int status)
207 : {
208 0 : subsystem = spdk_nvmf_subsystem_get_next(subsystem);
209 : int rc;
210 :
211 0 : if (subsystem) {
212 0 : rc = spdk_nvmf_subsystem_start(subsystem, nvmf_tgt_subsystem_started, NULL);
213 0 : if (rc) {
214 0 : g_tgt_state = NVMF_TGT_FINI_STOP_SUBSYSTEMS;
215 0 : SPDK_ERRLOG("Unable to start NVMe-oF subsystem. Stopping app.\n");
216 0 : nvmf_tgt_advance_state();
217 : }
218 0 : return;
219 : }
220 :
221 0 : g_tgt_state = NVMF_TGT_RUNNING;
222 0 : nvmf_tgt_advance_state();
223 : }
224 :
225 : static void
226 0 : nvmf_tgt_subsystem_stopped(struct spdk_nvmf_subsystem *subsystem,
227 : void *cb_arg, int status)
228 : {
229 0 : subsystem = spdk_nvmf_subsystem_get_next(subsystem);
230 : int rc;
231 :
232 0 : if (subsystem) {
233 0 : rc = spdk_nvmf_subsystem_stop(subsystem, nvmf_tgt_subsystem_stopped, NULL);
234 0 : if (rc) {
235 0 : SPDK_ERRLOG("Unable to stop NVMe-oF subsystem %s with rc %d, Trying others.\n",
236 : spdk_nvmf_subsystem_get_nqn(subsystem), rc);
237 0 : nvmf_tgt_subsystem_stopped(subsystem, NULL, 0);
238 : }
239 0 : return;
240 : }
241 :
242 0 : g_tgt_state = NVMF_TGT_FINI_DESTROY_SUBSYSTEMS;
243 0 : nvmf_tgt_advance_state();
244 : }
245 :
246 : static void
247 0 : _nvmf_tgt_subsystem_destroy(void *cb_arg)
248 : {
249 : struct spdk_nvmf_subsystem *subsystem, *next_subsystem;
250 : int rc;
251 :
252 0 : subsystem = spdk_nvmf_subsystem_get_first(g_spdk_nvmf_tgt);
253 :
254 0 : while (subsystem != NULL) {
255 0 : next_subsystem = spdk_nvmf_subsystem_get_next(subsystem);
256 0 : rc = spdk_nvmf_subsystem_destroy(subsystem, _nvmf_tgt_subsystem_destroy, NULL);
257 0 : if (rc) {
258 0 : if (rc == -EINPROGRESS) {
259 : /* If ret is -EINPROGRESS, nvmf_tgt_subsystem_destroyed will be called when subsystem
260 : * is destroyed, _nvmf_tgt_subsystem_destroy will continue to destroy other subsystems if any */
261 0 : return;
262 : } else {
263 0 : SPDK_ERRLOG("Unable to destroy subsystem %s, rc %d. Trying others.\n",
264 : spdk_nvmf_subsystem_get_nqn(subsystem), rc);
265 : }
266 : }
267 0 : subsystem = next_subsystem;
268 : }
269 :
270 0 : g_tgt_state = NVMF_TGT_FINI_DESTROY_POLL_GROUPS;
271 0 : nvmf_tgt_advance_state();
272 : }
273 :
274 : static void
275 0 : nvmf_tgt_destroy_done(void *ctx, int status)
276 : {
277 0 : g_tgt_state = NVMF_TGT_STOPPED;
278 :
279 0 : nvmf_tgt_advance_state();
280 0 : }
281 :
282 : static int
283 0 : nvmf_add_discovery_subsystem(void)
284 : {
285 : struct spdk_nvmf_subsystem *subsystem;
286 :
287 0 : subsystem = spdk_nvmf_subsystem_create(g_spdk_nvmf_tgt, SPDK_NVMF_DISCOVERY_NQN,
288 : SPDK_NVMF_SUBTYPE_DISCOVERY_CURRENT, 0);
289 0 : if (subsystem == NULL) {
290 0 : SPDK_ERRLOG("Failed creating discovery nvmf library subsystem\n");
291 0 : return -1;
292 : }
293 :
294 0 : spdk_nvmf_subsystem_set_allow_any_host(subsystem, true);
295 :
296 0 : return 0;
297 : }
298 :
299 : static int
300 0 : nvmf_tgt_create_target(void)
301 : {
302 0 : struct spdk_nvmf_target_opts opts = {
303 : .name = "nvmf_tgt"
304 : };
305 :
306 0 : opts.max_subsystems = g_spdk_nvmf_tgt_max_subsystems;
307 0 : opts.crdt[0] = g_spdk_nvmf_tgt_crdt[0];
308 0 : opts.crdt[1] = g_spdk_nvmf_tgt_crdt[1];
309 0 : opts.crdt[2] = g_spdk_nvmf_tgt_crdt[2];
310 0 : opts.discovery_filter = g_spdk_nvmf_tgt_conf.discovery_filter;
311 0 : g_spdk_nvmf_tgt = spdk_nvmf_tgt_create(&opts);
312 0 : if (!g_spdk_nvmf_tgt) {
313 0 : SPDK_ERRLOG("spdk_nvmf_tgt_create() failed\n");
314 0 : return -1;
315 : }
316 :
317 0 : if (nvmf_add_discovery_subsystem() != 0) {
318 0 : SPDK_ERRLOG("nvmf_add_discovery_subsystem failed\n");
319 0 : return -1;
320 : }
321 :
322 0 : return 0;
323 : }
324 :
325 : static void
326 0 : fixup_identify_ctrlr(struct spdk_nvmf_request *req)
327 : {
328 0 : struct spdk_nvme_ctrlr_data nvme_cdata = {};
329 0 : struct spdk_nvme_ctrlr_data nvmf_cdata = {};
330 0 : struct spdk_nvmf_ctrlr *ctrlr = spdk_nvmf_request_get_ctrlr(req);
331 0 : struct spdk_nvme_cpl *rsp = spdk_nvmf_request_get_response(req);
332 : size_t datalen;
333 : int rc;
334 :
335 : /* This is the identify data from the NVMe drive */
336 0 : datalen = spdk_nvmf_request_copy_to_buf(req, &nvme_cdata,
337 : sizeof(nvme_cdata));
338 :
339 : /* Get the NVMF identify data */
340 0 : rc = spdk_nvmf_ctrlr_identify_ctrlr(ctrlr, &nvmf_cdata);
341 0 : if (rc != SPDK_NVMF_REQUEST_EXEC_STATUS_COMPLETE) {
342 0 : rsp->status.sct = SPDK_NVME_SCT_GENERIC;
343 0 : rsp->status.sc = SPDK_NVME_SC_INTERNAL_DEVICE_ERROR;
344 0 : return;
345 : }
346 :
347 : /* Fixup NVMF identify data with NVMe identify data */
348 :
349 : /* Serial Number (SN) */
350 0 : memcpy(&nvmf_cdata.sn[0], &nvme_cdata.sn[0], sizeof(nvmf_cdata.sn));
351 : /* Model Number (MN) */
352 0 : memcpy(&nvmf_cdata.mn[0], &nvme_cdata.mn[0], sizeof(nvmf_cdata.mn));
353 : /* Firmware Revision (FR) */
354 0 : memcpy(&nvmf_cdata.fr[0], &nvme_cdata.fr[0], sizeof(nvmf_cdata.fr));
355 : /* IEEE OUI Identifier (IEEE) */
356 0 : memcpy(&nvmf_cdata.ieee[0], &nvme_cdata.ieee[0], sizeof(nvmf_cdata.ieee));
357 : /* FRU Globally Unique Identifier (FGUID) */
358 :
359 : /* Copy the fixed up data back to the response */
360 0 : spdk_nvmf_request_copy_from_buf(req, &nvmf_cdata, datalen);
361 : }
362 :
363 : static int
364 0 : nvmf_custom_identify_hdlr(struct spdk_nvmf_request *req)
365 : {
366 0 : struct spdk_nvme_cmd *cmd = spdk_nvmf_request_get_cmd(req);
367 0 : struct spdk_bdev *bdev;
368 0 : struct spdk_bdev_desc *desc;
369 0 : struct spdk_io_channel *ch;
370 : struct spdk_nvmf_subsystem *subsys;
371 : int rc;
372 :
373 0 : if (cmd->cdw10_bits.identify.cns != SPDK_NVME_IDENTIFY_CTRLR) {
374 0 : return -1; /* continue */
375 : }
376 :
377 0 : subsys = spdk_nvmf_request_get_subsystem(req);
378 0 : if (subsys == NULL) {
379 0 : return -1;
380 : }
381 :
382 : /* Only procss this request if it has exactly one namespace */
383 0 : if (spdk_nvmf_subsystem_get_max_nsid(subsys) != 1) {
384 0 : return -1;
385 : }
386 :
387 : /* Forward to first namespace if it supports NVME admin commands */
388 0 : rc = spdk_nvmf_request_get_bdev(1, req, &bdev, &desc, &ch);
389 0 : if (rc) {
390 : /* No bdev found for this namespace. Continue. */
391 0 : return -1;
392 : }
393 :
394 0 : if (!spdk_bdev_io_type_supported(bdev, SPDK_BDEV_IO_TYPE_NVME_ADMIN)) {
395 0 : return -1;
396 : }
397 :
398 0 : return spdk_nvmf_bdev_ctrlr_nvme_passthru_admin(bdev, desc, ch, req, fixup_identify_ctrlr);
399 : }
400 :
401 : static void
402 0 : nvmf_tgt_advance_state(void)
403 : {
404 : enum nvmf_tgt_state prev_state;
405 0 : int rc = -1;
406 : int ret;
407 :
408 : do {
409 : SPDK_DTRACE_PROBE1(nvmf_tgt_state, g_tgt_state);
410 0 : prev_state = g_tgt_state;
411 :
412 0 : switch (g_tgt_state) {
413 0 : case NVMF_TGT_INIT_NONE: {
414 0 : g_tgt_state = NVMF_TGT_INIT_CREATE_TARGET;
415 0 : break;
416 : }
417 0 : case NVMF_TGT_INIT_CREATE_TARGET:
418 0 : ret = nvmf_tgt_create_target();
419 0 : g_tgt_state = (ret == 0) ? NVMF_TGT_INIT_CREATE_POLL_GROUPS : NVMF_TGT_ERROR;
420 0 : break;
421 0 : case NVMF_TGT_INIT_CREATE_POLL_GROUPS:
422 0 : if (g_spdk_nvmf_tgt_conf.admin_passthru.identify_ctrlr) {
423 0 : SPDK_NOTICELOG("Custom identify ctrlr handler enabled\n");
424 0 : spdk_nvmf_set_custom_admin_cmd_hdlr(SPDK_NVME_OPC_IDENTIFY, nvmf_custom_identify_hdlr);
425 : }
426 : /* Create poll group threads, and send a message to each thread
427 : * and create a poll group.
428 : */
429 0 : nvmf_tgt_create_poll_groups();
430 0 : break;
431 0 : case NVMF_TGT_INIT_START_SUBSYSTEMS: {
432 : struct spdk_nvmf_subsystem *subsystem;
433 :
434 0 : subsystem = spdk_nvmf_subsystem_get_first(g_spdk_nvmf_tgt);
435 :
436 0 : if (subsystem) {
437 0 : ret = spdk_nvmf_subsystem_start(subsystem, nvmf_tgt_subsystem_started, NULL);
438 0 : if (ret) {
439 0 : SPDK_ERRLOG("Unable to start NVMe-oF subsystem. Stopping app.\n");
440 0 : g_tgt_state = NVMF_TGT_FINI_STOP_SUBSYSTEMS;
441 : }
442 : } else {
443 0 : g_tgt_state = NVMF_TGT_RUNNING;
444 : }
445 0 : break;
446 : }
447 0 : case NVMF_TGT_RUNNING:
448 0 : spdk_subsystem_init_next(0);
449 0 : break;
450 0 : case NVMF_TGT_FINI_STOP_SUBSYSTEMS: {
451 : struct spdk_nvmf_subsystem *subsystem;
452 :
453 0 : subsystem = spdk_nvmf_subsystem_get_first(g_spdk_nvmf_tgt);
454 :
455 0 : if (subsystem) {
456 0 : ret = spdk_nvmf_subsystem_stop(subsystem, nvmf_tgt_subsystem_stopped, NULL);
457 0 : if (ret) {
458 0 : nvmf_tgt_subsystem_stopped(subsystem, NULL, 0);
459 : }
460 : } else {
461 0 : g_tgt_state = NVMF_TGT_FINI_DESTROY_SUBSYSTEMS;
462 : }
463 0 : break;
464 : }
465 0 : case NVMF_TGT_FINI_DESTROY_SUBSYSTEMS:
466 0 : _nvmf_tgt_subsystem_destroy(NULL);
467 : /* Function above can be asynchronous, it will call nvmf_tgt_advance_state() once done.
468 : * So just return here */
469 0 : return;
470 0 : case NVMF_TGT_FINI_DESTROY_POLL_GROUPS:
471 : /* Send a message to each poll group thread, and terminate the thread */
472 0 : nvmf_tgt_destroy_poll_groups();
473 0 : break;
474 0 : case NVMF_TGT_FINI_DESTROY_TARGET:
475 0 : spdk_nvmf_tgt_destroy(g_spdk_nvmf_tgt, nvmf_tgt_destroy_done, NULL);
476 0 : break;
477 0 : case NVMF_TGT_STOPPED:
478 0 : spdk_subsystem_fini_next();
479 0 : return;
480 0 : case NVMF_TGT_ERROR:
481 0 : spdk_subsystem_init_next(rc);
482 0 : return;
483 : }
484 :
485 0 : } while (g_tgt_state != prev_state);
486 : }
487 :
488 : static void
489 0 : nvmf_subsystem_init(void)
490 : {
491 0 : g_tgt_state = NVMF_TGT_INIT_NONE;
492 0 : nvmf_tgt_advance_state();
493 0 : }
494 :
495 : static void
496 0 : nvmf_subsystem_dump_discover_filter(struct spdk_json_write_ctx *w)
497 : {
498 : static char const *const answers[] = {
499 : "match_any",
500 : "transport",
501 : "address",
502 : "transport,address",
503 : "svcid",
504 : "transport,svcid",
505 : "address,svcid",
506 : "transport,address,svcid"
507 : };
508 :
509 0 : if ((g_spdk_nvmf_tgt_conf.discovery_filter & ~(SPDK_NVMF_TGT_DISCOVERY_MATCH_TRANSPORT_TYPE |
510 : SPDK_NVMF_TGT_DISCOVERY_MATCH_TRANSPORT_ADDRESS |
511 : SPDK_NVMF_TGT_DISCOVERY_MATCH_TRANSPORT_SVCID)) != 0) {
512 0 : SPDK_ERRLOG("Incorrect discovery filter %d\n", g_spdk_nvmf_tgt_conf.discovery_filter);
513 0 : assert(0);
514 : return;
515 : }
516 :
517 0 : spdk_json_write_named_string(w, "discovery_filter", answers[g_spdk_nvmf_tgt_conf.discovery_filter]);
518 : }
519 :
520 : static void
521 0 : nvmf_subsystem_write_config_json(struct spdk_json_write_ctx *w)
522 : {
523 0 : spdk_json_write_array_begin(w);
524 :
525 0 : spdk_json_write_object_begin(w);
526 0 : spdk_json_write_named_string(w, "method", "nvmf_set_config");
527 :
528 0 : spdk_json_write_named_object_begin(w, "params");
529 0 : nvmf_subsystem_dump_discover_filter(w);
530 0 : spdk_json_write_named_object_begin(w, "admin_cmd_passthru");
531 0 : spdk_json_write_named_bool(w, "identify_ctrlr",
532 0 : g_spdk_nvmf_tgt_conf.admin_passthru.identify_ctrlr);
533 0 : spdk_json_write_object_end(w);
534 0 : if (g_poll_groups_mask) {
535 0 : spdk_json_write_named_string(w, "poll_groups_mask", spdk_cpuset_fmt(g_poll_groups_mask));
536 : }
537 0 : spdk_json_write_object_end(w);
538 0 : spdk_json_write_object_end(w);
539 :
540 0 : spdk_nvmf_tgt_write_config_json(w, g_spdk_nvmf_tgt);
541 0 : spdk_json_write_array_end(w);
542 0 : }
543 :
544 : static struct spdk_subsystem g_spdk_subsystem_nvmf = {
545 : .name = "nvmf",
546 : .init = nvmf_subsystem_init,
547 : .fini = nvmf_subsystem_fini,
548 : .write_config_json = nvmf_subsystem_write_config_json,
549 : };
550 :
551 0 : SPDK_SUBSYSTEM_REGISTER(g_spdk_subsystem_nvmf)
552 0 : SPDK_SUBSYSTEM_DEPEND(nvmf, bdev)
553 0 : SPDK_SUBSYSTEM_DEPEND(nvmf, sock)
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