Branch data Line data Source code
1 : : /* SPDX-License-Identifier: BSD-3-Clause
2 : : * Copyright (C) 2018 Intel Corporation.
3 : : * All rights reserved.
4 : : * Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
5 : : */
6 : :
7 : : #include "bdev_raid.h"
8 : : #include "spdk/env.h"
9 : : #include "spdk/thread.h"
10 : : #include "spdk/log.h"
11 : : #include "spdk/string.h"
12 : : #include "spdk/util.h"
13 : : #include "spdk/json.h"
14 : : #include "spdk/likely.h"
15 : : #include "spdk/trace.h"
16 : : #include "spdk_internal/trace_defs.h"
17 : :
18 : : #define RAID_OFFSET_BLOCKS_INVALID UINT64_MAX
19 : : #define RAID_BDEV_PROCESS_MAX_QD 16
20 : :
21 : : #define RAID_BDEV_PROCESS_WINDOW_SIZE_KB_DEFAULT 1024
22 : : #define RAID_BDEV_PROCESS_MAX_BANDWIDTH_MB_SEC_DEFAULT 0
23 : :
24 : : static bool g_shutdown_started = false;
25 : :
26 : : /* List of all raid bdevs */
27 : : struct raid_all_tailq g_raid_bdev_list = TAILQ_HEAD_INITIALIZER(g_raid_bdev_list);
28 : :
29 : : static TAILQ_HEAD(, raid_bdev_module) g_raid_modules = TAILQ_HEAD_INITIALIZER(g_raid_modules);
30 : :
31 : : /*
32 : : * raid_bdev_io_channel is the context of spdk_io_channel for raid bdev device. It
33 : : * contains the relationship of raid bdev io channel with base bdev io channels.
34 : : */
35 : : struct raid_bdev_io_channel {
36 : : /* Array of IO channels of base bdevs */
37 : : struct spdk_io_channel **base_channel;
38 : :
39 : : /* Private raid module IO channel */
40 : : struct spdk_io_channel *module_channel;
41 : :
42 : : /* Background process data */
43 : : struct {
44 : : uint64_t offset;
45 : : struct spdk_io_channel *target_ch;
46 : : struct raid_bdev_io_channel *ch_processed;
47 : : } process;
48 : : };
49 : :
50 : : enum raid_bdev_process_state {
51 : : RAID_PROCESS_STATE_INIT,
52 : : RAID_PROCESS_STATE_RUNNING,
53 : : RAID_PROCESS_STATE_STOPPING,
54 : : RAID_PROCESS_STATE_STOPPED,
55 : : };
56 : :
57 : : struct raid_process_qos {
58 : : bool enable_qos;
59 : : uint64_t last_tsc;
60 : : double bytes_per_tsc;
61 : : double bytes_available;
62 : : double bytes_max;
63 : : struct spdk_poller *process_continue_poller;
64 : : };
65 : :
66 : : struct raid_bdev_process {
67 : : struct raid_bdev *raid_bdev;
68 : : enum raid_process_type type;
69 : : enum raid_bdev_process_state state;
70 : : struct spdk_thread *thread;
71 : : struct raid_bdev_io_channel *raid_ch;
72 : : TAILQ_HEAD(, raid_bdev_process_request) requests;
73 : : uint64_t max_window_size;
74 : : uint64_t window_size;
75 : : uint64_t window_remaining;
76 : : int window_status;
77 : : uint64_t window_offset;
78 : : bool window_range_locked;
79 : : struct raid_base_bdev_info *target;
80 : : int status;
81 : : TAILQ_HEAD(, raid_process_finish_action) finish_actions;
82 : : struct raid_process_qos qos;
83 : : };
84 : :
85 : : struct raid_process_finish_action {
86 : : spdk_msg_fn cb;
87 : : void *cb_ctx;
88 : : TAILQ_ENTRY(raid_process_finish_action) link;
89 : : };
90 : :
91 : : static struct spdk_raid_bdev_opts g_opts = {
92 : : .process_window_size_kb = RAID_BDEV_PROCESS_WINDOW_SIZE_KB_DEFAULT,
93 : : .process_max_bandwidth_mb_sec = RAID_BDEV_PROCESS_MAX_BANDWIDTH_MB_SEC_DEFAULT,
94 : : };
95 : :
96 : : void
97 : 243 : raid_bdev_get_opts(struct spdk_raid_bdev_opts *opts)
98 : : {
99 : 243 : *opts = g_opts;
100 : 243 : }
101 : :
102 : : int
103 : 246 : raid_bdev_set_opts(const struct spdk_raid_bdev_opts *opts)
104 : : {
105 [ + + + - : 246 : if (opts->process_window_size_kb == 0) {
+ - ]
106 : 0 : return -EINVAL;
107 : : }
108 : :
109 : 246 : g_opts = *opts;
110 : :
111 : 246 : return 0;
112 : 1 : }
113 : :
114 : : static struct raid_bdev_module *
115 : 6888 : raid_bdev_module_find(enum raid_level level)
116 : : {
117 : : struct raid_bdev_module *raid_module;
118 : :
119 [ + + - + : 14016 : TAILQ_FOREACH(raid_module, &g_raid_modules, link) {
- + - + ]
120 [ + + + - : 7538 : if (raid_module->level == level) {
+ - ]
121 : 410 : return raid_module;
122 : : }
123 : 174 : }
124 : :
125 : 6478 : return NULL;
126 : 174 : }
127 : :
128 : : void
129 : 6475 : raid_bdev_module_list_add(struct raid_bdev_module *raid_module)
130 : : {
131 [ + + + - : 6475 : if (raid_bdev_module_find(raid_module->level) != NULL) {
+ - ]
132 [ # # # # ]: 0 : SPDK_ERRLOG("module for raid level '%s' already registered.\n",
133 : : raid_bdev_level_to_str(raid_module->level));
134 [ # # ]: 0 : assert(false);
135 : : } else {
136 [ + - + - : 6475 : TAILQ_INSERT_TAIL(&g_raid_modules, raid_module, link);
+ - + - +
- + - + -
+ - + - +
- + - +
- ]
137 : : }
138 : 6475 : }
139 : :
140 : : struct spdk_io_channel *
141 : 15897039 : raid_bdev_channel_get_base_channel(struct raid_bdev_io_channel *raid_ch, uint8_t idx)
142 : : {
143 [ # # # # : 15897039 : return raid_ch->base_channel[idx];
# # # # ]
144 : : }
145 : :
146 : : void *
147 : 1342101 : raid_bdev_channel_get_module_ctx(struct raid_bdev_io_channel *raid_ch)
148 : : {
149 [ - + # # : 1342101 : assert(raid_ch->module_channel != NULL);
# # # # ]
150 : :
151 [ # # # # ]: 1342101 : return spdk_io_channel_get_ctx(raid_ch->module_channel);
152 : : }
153 : :
154 : : struct raid_base_bdev_info *
155 : 3 : raid_bdev_channel_get_base_info(struct raid_bdev_io_channel *raid_ch, struct spdk_bdev *base_bdev)
156 : : {
157 : 3 : struct spdk_io_channel *ch = spdk_io_channel_from_ctx(raid_ch);
158 : 3 : struct raid_bdev *raid_bdev = spdk_io_channel_get_io_device(ch);
159 : : uint8_t i;
160 : :
161 [ + - # # : 3 : for (i = 0; i < raid_bdev->num_base_bdevs; i++) {
# # ]
162 [ # # # # : 3 : struct raid_base_bdev_info *base_info = &raid_bdev->base_bdev_info[i];
# # ]
163 : :
164 [ - + + - : 6 : if (base_info->is_configured &&
+ - # # #
# ]
165 [ # # # # ]: 3 : spdk_bdev_desc_get_bdev(base_info->desc) == base_bdev) {
166 : 3 : return base_info;
167 : : }
168 : 0 : }
169 : :
170 : 0 : return NULL;
171 : 0 : }
172 : :
173 : : /* Function declarations */
174 : : static void raid_bdev_examine(struct spdk_bdev *bdev);
175 : : static int raid_bdev_init(void);
176 : : static void raid_bdev_deconfigure(struct raid_bdev *raid_bdev,
177 : : raid_bdev_destruct_cb cb_fn, void *cb_arg);
178 : :
179 : : static void
180 : 670 : raid_bdev_ch_process_cleanup(struct raid_bdev_io_channel *raid_ch)
181 : : {
182 [ # # # # : 670 : raid_ch->process.offset = RAID_OFFSET_BLOCKS_INVALID;
# # ]
183 : :
184 [ + + # # : 670 : if (raid_ch->process.target_ch != NULL) {
# # # # ]
185 [ # # # # : 41 : spdk_put_io_channel(raid_ch->process.target_ch);
# # ]
186 [ # # # # : 41 : raid_ch->process.target_ch = NULL;
# # ]
187 : 0 : }
188 : :
189 [ + + # # : 670 : if (raid_ch->process.ch_processed != NULL) {
# # # # ]
190 [ # # # # : 66 : free(raid_ch->process.ch_processed->base_channel);
# # # # #
# ]
191 [ # # # # : 66 : free(raid_ch->process.ch_processed);
# # ]
192 [ # # # # : 66 : raid_ch->process.ch_processed = NULL;
# # ]
193 : 0 : }
194 : 670 : }
195 : :
196 : : static int
197 : 66 : raid_bdev_ch_process_setup(struct raid_bdev_io_channel *raid_ch, struct raid_bdev_process *process)
198 : : {
199 [ # # # # ]: 66 : struct raid_bdev *raid_bdev = process->raid_bdev;
200 : : struct raid_bdev_io_channel *raid_ch_processed;
201 : : struct raid_base_bdev_info *base_info;
202 : :
203 [ # # # # : 66 : raid_ch->process.offset = process->window_offset;
# # # # #
# ]
204 : :
205 : : /* In the future we may have other types of processes which don't use a target bdev,
206 : : * like data scrubbing or strip size migration. Until then, expect that there always is
207 : : * a process target. */
208 [ - + # # : 66 : assert(process->target != NULL);
# # # # ]
209 : :
210 [ # # # # : 66 : raid_ch->process.target_ch = spdk_bdev_get_io_channel(process->target->desc);
# # # # #
# # # #
# ]
211 [ - + # # : 66 : if (raid_ch->process.target_ch == NULL) {
# # # # ]
212 : 0 : goto err;
213 : : }
214 : :
215 : 66 : raid_ch_processed = calloc(1, sizeof(*raid_ch_processed));
216 [ - + ]: 66 : if (raid_ch_processed == NULL) {
217 : 0 : goto err;
218 : : }
219 [ # # # # : 66 : raid_ch->process.ch_processed = raid_ch_processed;
# # ]
220 : :
221 [ # # # # : 66 : raid_ch_processed->base_channel = calloc(raid_bdev->num_base_bdevs,
# # # # ]
222 : : sizeof(*raid_ch_processed->base_channel));
223 [ - + # # : 66 : if (raid_ch_processed->base_channel == NULL) {
# # ]
224 : 0 : goto err;
225 : : }
226 : :
227 [ + + # # : 519 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
228 : 453 : uint8_t slot = raid_bdev_base_bdev_slot(base_info);
229 : :
230 [ + + # # : 453 : if (base_info != process->target) {
# # ]
231 [ # # # # : 387 : raid_ch_processed->base_channel[slot] = raid_ch->base_channel[slot];
# # # # #
# # # # #
# # ]
232 : 0 : } else {
233 [ # # # # : 66 : raid_ch_processed->base_channel[slot] = raid_ch->process.target_ch;
# # # # #
# # # #
# ]
234 : : }
235 : 0 : }
236 : :
237 [ # # # # : 66 : raid_ch_processed->module_channel = raid_ch->module_channel;
# # # # ]
238 [ # # # # : 66 : raid_ch_processed->process.offset = RAID_OFFSET_BLOCKS_INVALID;
# # ]
239 : :
240 : 66 : return 0;
241 : 0 : err:
242 : 0 : raid_bdev_ch_process_cleanup(raid_ch);
243 : 0 : return -ENOMEM;
244 : 0 : }
245 : :
246 : : /*
247 : : * brief:
248 : : * raid_bdev_create_cb function is a cb function for raid bdev which creates the
249 : : * hierarchy from raid bdev to base bdev io channels. It will be called per core
250 : : * params:
251 : : * io_device - pointer to raid bdev io device represented by raid_bdev
252 : : * ctx_buf - pointer to context buffer for raid bdev io channel
253 : : * returns:
254 : : * 0 - success
255 : : * non zero - failure
256 : : */
257 : : static int
258 : 607 : raid_bdev_create_cb(void *io_device, void *ctx_buf)
259 : : {
260 : 607 : struct raid_bdev *raid_bdev = io_device;
261 : 607 : struct raid_bdev_io_channel *raid_ch = ctx_buf;
262 : : uint8_t i;
263 : 607 : int ret = -ENOMEM;
264 : :
265 [ - + + + : 607 : SPDK_DEBUGLOG(bdev_raid, "raid_bdev_create_cb, %p\n", raid_ch);
# # ]
266 : :
267 [ - + # # ]: 607 : assert(raid_bdev != NULL);
268 [ - + # # : 607 : assert(raid_bdev->state == RAID_BDEV_STATE_ONLINE);
# # # # ]
269 : :
270 [ # # # # : 607 : raid_ch->base_channel = calloc(raid_bdev->num_base_bdevs, sizeof(struct spdk_io_channel *));
# # # # ]
271 [ - + # # : 607 : if (!raid_ch->base_channel) {
# # ]
272 : 0 : SPDK_ERRLOG("Unable to allocate base bdevs io channel\n");
273 : 0 : return -ENOMEM;
274 : : }
275 : :
276 [ + + # # : 2517 : for (i = 0; i < raid_bdev->num_base_bdevs; i++) {
# # ]
277 : : /*
278 : : * Get the spdk_io_channel for all the base bdevs. This is used during
279 : : * split logic to send the respective child bdev ios to respective base
280 : : * bdev io channel.
281 : : * Skip missing base bdevs and the process target, which should also be treated as
282 : : * missing until the process completes.
283 : : */
284 [ + + + + : 1910 : if (raid_bdev->base_bdev_info[i].is_configured == false ||
# # # # #
# # # # #
# # ]
285 [ - + + + : 1884 : raid_bdev->base_bdev_info[i].is_process_target == true) {
# # # # #
# # # ]
286 : 75 : continue;
287 : : }
288 [ # # # # : 2107 : raid_ch->base_channel[i] = spdk_bdev_get_io_channel(
# # # # ]
289 [ # # # # : 1835 : raid_bdev->base_bdev_info[i].desc);
# # # # #
# ]
290 [ - + # # : 1835 : if (!raid_ch->base_channel[i]) {
# # # # #
# ]
291 : 0 : SPDK_ERRLOG("Unable to create io channel for base bdev\n");
292 : 0 : goto err;
293 : : }
294 : 0 : }
295 : :
296 [ + + # # : 607 : if (raid_bdev->module->get_io_channel) {
# # # # #
# ]
297 [ # # # # : 246 : raid_ch->module_channel = raid_bdev->module->get_io_channel(raid_bdev);
# # # # #
# # # # #
# # ]
298 [ - + # # : 246 : if (!raid_ch->module_channel) {
# # ]
299 : 0 : SPDK_ERRLOG("Unable to create io channel for raid module\n");
300 : 0 : goto err;
301 : : }
302 : 0 : }
303 : :
304 [ + + # # : 607 : if (raid_bdev->process != NULL) {
# # ]
305 [ # # # # ]: 58 : ret = raid_bdev_ch_process_setup(raid_ch, raid_bdev->process);
306 [ - + ]: 58 : if (ret != 0) {
307 : 0 : SPDK_ERRLOG("Failed to setup process io channel\n");
308 : 0 : goto err;
309 : : }
310 : 0 : } else {
311 [ # # # # : 549 : raid_ch->process.offset = RAID_OFFSET_BLOCKS_INVALID;
# # ]
312 : : }
313 : :
314 : 607 : return 0;
315 : 0 : err:
316 [ # # # # : 0 : for (i = 0; i < raid_bdev->num_base_bdevs; i++) {
# # ]
317 [ # # # # : 0 : if (raid_ch->base_channel[i] != NULL) {
# # # # #
# ]
318 [ # # # # : 0 : spdk_put_io_channel(raid_ch->base_channel[i]);
# # # # ]
319 : 0 : }
320 : 0 : }
321 [ # # # # ]: 0 : free(raid_ch->base_channel);
322 : :
323 : 0 : raid_bdev_ch_process_cleanup(raid_ch);
324 : :
325 : 0 : return ret;
326 : 0 : }
327 : :
328 : : /*
329 : : * brief:
330 : : * raid_bdev_destroy_cb function is a cb function for raid bdev which deletes the
331 : : * hierarchy from raid bdev to base bdev io channels. It will be called per core
332 : : * params:
333 : : * io_device - pointer to raid bdev io device represented by raid_bdev
334 : : * ctx_buf - pointer to context buffer for raid bdev io channel
335 : : * returns:
336 : : * none
337 : : */
338 : : static void
339 : 607 : raid_bdev_destroy_cb(void *io_device, void *ctx_buf)
340 : : {
341 : 607 : struct raid_bdev *raid_bdev = io_device;
342 : 607 : struct raid_bdev_io_channel *raid_ch = ctx_buf;
343 : : uint8_t i;
344 : :
345 [ - + + + : 607 : SPDK_DEBUGLOG(bdev_raid, "raid_bdev_destroy_cb\n");
# # ]
346 : :
347 [ - + # # ]: 607 : assert(raid_ch != NULL);
348 [ - + # # : 607 : assert(raid_ch->base_channel);
# # # # ]
349 : :
350 [ + + # # : 607 : if (raid_ch->module_channel) {
# # ]
351 [ # # # # ]: 246 : spdk_put_io_channel(raid_ch->module_channel);
352 : 0 : }
353 : :
354 [ + + # # : 2517 : for (i = 0; i < raid_bdev->num_base_bdevs; i++) {
# # ]
355 : : /* Free base bdev channels */
356 [ + + # # : 1910 : if (raid_ch->base_channel[i] != NULL) {
# # # # #
# ]
357 [ # # # # : 1845 : spdk_put_io_channel(raid_ch->base_channel[i]);
# # # # ]
358 : 0 : }
359 : 0 : }
360 [ # # # # ]: 607 : free(raid_ch->base_channel);
361 [ # # # # ]: 607 : raid_ch->base_channel = NULL;
362 : :
363 : 607 : raid_bdev_ch_process_cleanup(raid_ch);
364 : 607 : }
365 : :
366 : : /*
367 : : * brief:
368 : : * raid_bdev_cleanup is used to cleanup raid_bdev related data
369 : : * structures.
370 : : * params:
371 : : * raid_bdev - pointer to raid_bdev
372 : : * returns:
373 : : * none
374 : : */
375 : : static void
376 : 410 : raid_bdev_cleanup(struct raid_bdev *raid_bdev)
377 : : {
378 : : struct raid_base_bdev_info *base_info;
379 : :
380 [ - + + + : 410 : SPDK_DEBUGLOG(bdev_raid, "raid_bdev_cleanup, %p name %s, state %s\n",
# # # # #
# # # # #
# # ]
381 : : raid_bdev, raid_bdev->bdev.name, raid_bdev_state_to_str(raid_bdev->state));
382 [ - + # # : 410 : assert(raid_bdev->state != RAID_BDEV_STATE_ONLINE);
# # # # ]
383 [ - + # # ]: 410 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
384 : :
385 [ + + # # : 2964 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
386 [ - + # # : 2554 : assert(base_info->desc == NULL);
# # # # ]
387 [ # # # # ]: 2554 : free(base_info->name);
388 : 0 : }
389 : :
390 [ + + # # : 410 : TAILQ_REMOVE(&g_raid_bdev_list, raid_bdev, global_link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
391 : 410 : }
392 : :
393 : : static void
394 : 410 : raid_bdev_free(struct raid_bdev *raid_bdev)
395 : : {
396 : 410 : raid_bdev_free_superblock(raid_bdev);
397 [ # # # # ]: 410 : free(raid_bdev->base_bdev_info);
398 [ # # # # : 410 : free(raid_bdev->bdev.name);
# # ]
399 : 410 : free(raid_bdev);
400 : 410 : }
401 : :
402 : : static void
403 : 97 : raid_bdev_cleanup_and_free(struct raid_bdev *raid_bdev)
404 : : {
405 : 97 : raid_bdev_cleanup(raid_bdev);
406 : 97 : raid_bdev_free(raid_bdev);
407 : 97 : }
408 : :
409 : : static void
410 : 2362 : raid_bdev_deconfigure_base_bdev(struct raid_base_bdev_info *base_info)
411 : : {
412 [ # # # # ]: 2362 : struct raid_bdev *raid_bdev = base_info->raid_bdev;
413 : :
414 [ - + - + : 2362 : assert(base_info->is_configured);
# # # # #
# ]
415 [ - + # # : 2362 : assert(raid_bdev->num_base_bdevs_discovered);
# # # # ]
416 [ # # ]: 2362 : raid_bdev->num_base_bdevs_discovered--;
417 [ # # # # ]: 2362 : base_info->is_configured = false;
418 [ # # # # ]: 2362 : base_info->is_process_target = false;
419 : 2362 : }
420 : :
421 : : /*
422 : : * brief:
423 : : * free resource of base bdev for raid bdev
424 : : * params:
425 : : * base_info - raid base bdev info
426 : : * returns:
427 : : * none
428 : : */
429 : : static void
430 : 2739 : raid_bdev_free_base_bdev_resource(struct raid_base_bdev_info *base_info)
431 : : {
432 [ # # # # ]: 2739 : struct raid_bdev *raid_bdev = base_info->raid_bdev;
433 : :
434 [ - + # # ]: 2739 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
435 [ - + # # : 2739 : assert(base_info->configure_cb == NULL);
# # # # ]
436 : :
437 [ # # # # ]: 2739 : free(base_info->name);
438 [ # # # # ]: 2739 : base_info->name = NULL;
439 [ + + # # : 2739 : if (raid_bdev->state != RAID_BDEV_STATE_CONFIGURING) {
# # ]
440 [ # # ]: 2148 : spdk_uuid_set_null(&base_info->uuid);
441 : 0 : }
442 [ # # # # ]: 2739 : base_info->is_failed = false;
443 : :
444 : : /* clear `data_offset` to allow it to be recalculated during configuration */
445 [ # # # # ]: 2739 : base_info->data_offset = 0;
446 : :
447 [ + + # # : 2739 : if (base_info->desc == NULL) {
# # ]
448 : 319 : return;
449 : : }
450 : :
451 [ # # # # ]: 2420 : spdk_bdev_module_release_bdev(spdk_bdev_desc_get_bdev(base_info->desc));
452 [ # # # # ]: 2420 : spdk_bdev_close(base_info->desc);
453 [ # # # # ]: 2420 : base_info->desc = NULL;
454 [ # # # # ]: 2420 : spdk_put_io_channel(base_info->app_thread_ch);
455 [ # # # # ]: 2420 : base_info->app_thread_ch = NULL;
456 : :
457 [ + + + + : 2420 : if (base_info->is_configured) {
# # # # ]
458 : 2254 : raid_bdev_deconfigure_base_bdev(base_info);
459 : 0 : }
460 : 0 : }
461 : :
462 : : static void
463 : 329 : raid_bdev_io_device_unregister_cb(void *io_device)
464 : : {
465 : 329 : struct raid_bdev *raid_bdev = io_device;
466 : :
467 [ + + # # : 329 : if (raid_bdev->num_base_bdevs_discovered == 0) {
# # ]
468 : : /* Free raid_bdev when there are no base bdevs left */
469 [ - + + + : 313 : SPDK_DEBUGLOG(bdev_raid, "raid bdev base bdevs is 0, going to free all in destruct\n");
# # ]
470 : 313 : raid_bdev_cleanup(raid_bdev);
471 [ # # ]: 313 : spdk_bdev_destruct_done(&raid_bdev->bdev, 0);
472 : 313 : raid_bdev_free(raid_bdev);
473 : 0 : } else {
474 [ # # ]: 16 : spdk_bdev_destruct_done(&raid_bdev->bdev, 0);
475 : : }
476 : 329 : }
477 : :
478 : : void
479 : 329 : raid_bdev_module_stop_done(struct raid_bdev *raid_bdev)
480 : : {
481 [ + - # # : 329 : if (raid_bdev->state != RAID_BDEV_STATE_CONFIGURING) {
# # ]
482 : 329 : spdk_io_device_unregister(raid_bdev, raid_bdev_io_device_unregister_cb);
483 : 0 : }
484 : 329 : }
485 : :
486 : : static void
487 : 329 : _raid_bdev_destruct(void *ctxt)
488 : : {
489 : 329 : struct raid_bdev *raid_bdev = ctxt;
490 : : struct raid_base_bdev_info *base_info;
491 : :
492 [ - + + + : 329 : SPDK_DEBUGLOG(bdev_raid, "raid_bdev_destruct\n");
# # ]
493 : :
494 [ - + # # : 329 : assert(raid_bdev->process == NULL);
# # # # ]
495 : :
496 [ + + # # : 2385 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
497 : : /*
498 : : * Close all base bdev descriptors for which call has come from below
499 : : * layers. Also close the descriptors if we have started shutdown.
500 : : */
501 [ + + + + : 2056 : if (g_shutdown_started || base_info->remove_scheduled == true) {
- + + + #
# # # ]
502 : 1991 : raid_bdev_free_base_bdev_resource(base_info);
503 : 0 : }
504 : 0 : }
505 : :
506 [ + + + + ]: 329 : if (g_shutdown_started) {
507 [ # # # # ]: 164 : raid_bdev->state = RAID_BDEV_STATE_OFFLINE;
508 : 0 : }
509 : :
510 [ + + # # : 329 : if (raid_bdev->module->stop != NULL) {
# # # # #
# ]
511 [ + + # # : 199 : if (raid_bdev->module->stop(raid_bdev) == false) {
# # # # #
# # # #
# ]
512 : 131 : return;
513 : : }
514 : 0 : }
515 : :
516 : 198 : raid_bdev_module_stop_done(raid_bdev);
517 : 0 : }
518 : :
519 : : static int
520 : 329 : raid_bdev_destruct(void *ctx)
521 : : {
522 : 329 : spdk_thread_exec_msg(spdk_thread_get_app_thread(), _raid_bdev_destruct, ctx);
523 : :
524 : 329 : return 1;
525 : : }
526 : :
527 : : int
528 : 0 : raid_bdev_remap_dix_reftag(void *md_buf, uint64_t num_blocks,
529 : : struct spdk_bdev *bdev, uint32_t remapped_offset)
530 : : {
531 : 0 : struct spdk_dif_ctx dif_ctx;
532 : 0 : struct spdk_dif_error err_blk = {};
533 : : int rc;
534 : 0 : struct spdk_dif_ctx_init_ext_opts dif_opts;
535 : 0 : struct iovec md_iov = {
536 : 0 : .iov_base = md_buf,
537 [ # # # # ]: 0 : .iov_len = num_blocks * bdev->md_len,
538 : : };
539 : :
540 [ # # ]: 0 : if (md_buf == NULL) {
541 : 0 : return 0;
542 : : }
543 : :
544 : 0 : dif_opts.size = SPDK_SIZEOF(&dif_opts, dif_pi_format);
545 [ # # # # : 0 : dif_opts.dif_pi_format = bdev->dif_pi_format;
# # ]
546 : 0 : rc = spdk_dif_ctx_init(&dif_ctx,
547 [ # # # # : 0 : bdev->blocklen, bdev->md_len, bdev->md_interleave,
# # # # #
# # # #
# ]
548 [ # # # # : 0 : bdev->dif_is_head_of_md, bdev->dif_type,
# # # # #
# ]
549 [ # # ]: 0 : SPDK_DIF_FLAGS_REFTAG_CHECK,
550 : : 0, 0, 0, 0, 0, &dif_opts);
551 [ # # ]: 0 : if (rc != 0) {
552 : 0 : SPDK_ERRLOG("Initialization of DIF context failed\n");
553 : 0 : return rc;
554 : : }
555 : :
556 : 0 : spdk_dif_ctx_set_remapped_init_ref_tag(&dif_ctx, remapped_offset);
557 : :
558 : 0 : rc = spdk_dix_remap_ref_tag(&md_iov, num_blocks, &dif_ctx, &err_blk, false);
559 [ # # ]: 0 : if (rc != 0) {
560 [ # # ]: 0 : SPDK_ERRLOG("Remapping reference tag failed. type=%d, offset=%d"
561 : : PRIu32 "\n", err_blk.err_type, err_blk.err_offset);
562 : 0 : }
563 : :
564 : 0 : return rc;
565 : 0 : }
566 : :
567 : : int
568 : 0 : raid_bdev_verify_dix_reftag(struct iovec *iovs, int iovcnt, void *md_buf,
569 : : uint64_t num_blocks, struct spdk_bdev *bdev, uint32_t offset_blocks)
570 : : {
571 : 0 : struct spdk_dif_ctx dif_ctx;
572 : 0 : struct spdk_dif_error err_blk = {};
573 : : int rc;
574 : 0 : struct spdk_dif_ctx_init_ext_opts dif_opts;
575 : 0 : struct iovec md_iov = {
576 : 0 : .iov_base = md_buf,
577 [ # # # # ]: 0 : .iov_len = num_blocks * bdev->md_len,
578 : : };
579 : :
580 [ # # ]: 0 : if (md_buf == NULL) {
581 : 0 : return 0;
582 : : }
583 : :
584 : 0 : dif_opts.size = SPDK_SIZEOF(&dif_opts, dif_pi_format);
585 [ # # # # : 0 : dif_opts.dif_pi_format = bdev->dif_pi_format;
# # ]
586 : 0 : rc = spdk_dif_ctx_init(&dif_ctx,
587 [ # # # # : 0 : bdev->blocklen, bdev->md_len, bdev->md_interleave,
# # # # #
# # # #
# ]
588 [ # # # # : 0 : bdev->dif_is_head_of_md, bdev->dif_type,
# # # # #
# ]
589 [ # # ]: 0 : SPDK_DIF_FLAGS_REFTAG_CHECK,
590 : 0 : offset_blocks, 0, 0, 0, 0, &dif_opts);
591 [ # # ]: 0 : if (rc != 0) {
592 : 0 : SPDK_ERRLOG("Initialization of DIF context failed\n");
593 : 0 : return rc;
594 : : }
595 : :
596 : 0 : rc = spdk_dix_verify(iovs, iovcnt, &md_iov, num_blocks, &dif_ctx, &err_blk);
597 [ # # ]: 0 : if (rc != 0) {
598 [ # # ]: 0 : SPDK_ERRLOG("Reference tag check failed. type=%d, offset=%d"
599 : : PRIu32 "\n", err_blk.err_type, err_blk.err_offset);
600 : 0 : }
601 : :
602 : 0 : return rc;
603 : 0 : }
604 : :
605 : : void
606 : 13357389 : raid_bdev_io_complete(struct raid_bdev_io *raid_io, enum spdk_bdev_io_status status)
607 : : {
608 : 13357389 : struct spdk_bdev_io *bdev_io = spdk_bdev_io_from_ctx(raid_io);
609 : : int rc;
610 : :
611 [ + + - + : 13357389 : spdk_trace_record(TRACE_BDEV_RAID_IO_DONE, 0, 0, (uintptr_t)raid_io, (uintptr_t)bdev_io);
# # # # #
# # # # #
# # ]
612 : :
613 [ + + # # : 13357389 : if (raid_io->split.offset != RAID_OFFSET_BLOCKS_INVALID) {
# # # # ]
614 [ # # # # : 264 : struct iovec *split_iov = raid_io->split.iov;
# # ]
615 [ # # # # ]: 264 : const struct iovec *split_iov_orig = &raid_io->split.iov_copy;
616 : :
617 : : /*
618 : : * Non-zero offset here means that this is the completion of the first part of the
619 : : * split I/O (the higher LBAs). Then, we submit the second part and set offset to 0.
620 : : */
621 [ + + # # : 264 : if (raid_io->split.offset != 0) {
# # # # ]
622 [ # # # # : 132 : raid_io->offset_blocks = bdev_io->u.bdev.offset_blocks;
# # # # #
# # # ]
623 [ # # # # : 132 : raid_io->md_buf = bdev_io->u.bdev.md_buf;
# # # # #
# # # ]
624 : :
625 [ + - ]: 132 : if (status == SPDK_BDEV_IO_STATUS_SUCCESS) {
626 [ # # # # : 132 : raid_io->num_blocks = raid_io->split.offset;
# # # # #
# ]
627 [ # # # # : 132 : raid_io->iovcnt = raid_io->iovs - bdev_io->u.bdev.iovs;
# # # # #
# # # # #
# # ]
628 [ # # # # : 132 : raid_io->iovs = bdev_io->u.bdev.iovs;
# # # # #
# # # ]
629 [ + + ]: 132 : if (split_iov != NULL) {
630 [ # # # # ]: 129 : raid_io->iovcnt++;
631 [ # # # # : 129 : split_iov->iov_len = split_iov->iov_base - split_iov_orig->iov_base;
# # # # #
# # # ]
632 [ # # # # : 129 : split_iov->iov_base = split_iov_orig->iov_base;
# # # # ]
633 : 0 : }
634 : :
635 [ # # # # : 132 : raid_io->split.offset = 0;
# # ]
636 [ # # # # ]: 132 : raid_io->base_bdev_io_submitted = 0;
637 [ # # # # : 132 : raid_io->raid_ch = raid_io->raid_ch->process.ch_processed;
# # # # #
# # # #
# ]
638 : :
639 [ # # # # : 132 : raid_io->raid_bdev->module->submit_rw_request(raid_io);
# # # # #
# # # # #
# # ]
640 : 132 : return;
641 : : }
642 : 0 : }
643 : :
644 [ # # # # : 132 : raid_io->num_blocks = bdev_io->u.bdev.num_blocks;
# # # # #
# # # ]
645 [ # # # # : 132 : raid_io->iovcnt = bdev_io->u.bdev.iovcnt;
# # # # #
# # # ]
646 [ # # # # : 132 : raid_io->iovs = bdev_io->u.bdev.iovs;
# # # # #
# # # ]
647 [ + + ]: 132 : if (split_iov != NULL) {
648 : 129 : *split_iov = *split_iov_orig;
649 : 0 : }
650 : 0 : }
651 : :
652 [ + + # # : 13357257 : if (spdk_unlikely(raid_io->completion_cb != NULL)) {
# # ]
653 [ # # # # : 3332 : raid_io->completion_cb(raid_io, status);
# # # # ]
654 : 0 : } else {
655 [ + + - + : 13353925 : if (spdk_unlikely(bdev_io->type == SPDK_BDEV_IO_TYPE_READ &&
- + - - -
+ - - # #
# # # # #
# # # # #
# # ]
656 : : spdk_bdev_get_dif_type(bdev_io->bdev) != SPDK_DIF_DISABLE &&
657 : : bdev_io->bdev->dif_check_flags & SPDK_DIF_FLAGS_REFTAG_CHECK &&
658 : : status == SPDK_BDEV_IO_STATUS_SUCCESS)) {
659 : :
660 [ # # # # : 0 : rc = raid_bdev_remap_dix_reftag(bdev_io->u.bdev.md_buf,
# # # # ]
661 [ # # # # : 0 : bdev_io->u.bdev.num_blocks, bdev_io->bdev,
# # # # #
# # # ]
662 [ # # # # : 0 : bdev_io->u.bdev.offset_blocks);
# # # # ]
663 [ # # ]: 0 : if (rc != 0) {
664 : 0 : status = SPDK_BDEV_IO_STATUS_FAILED;
665 : 0 : }
666 : 0 : }
667 : 13353925 : spdk_bdev_io_complete(bdev_io, status);
668 : : }
669 : 0 : }
670 : :
671 : : /*
672 : : * brief:
673 : : * raid_bdev_io_complete_part - signal the completion of a part of the expected
674 : : * base bdev IOs and complete the raid_io if this is the final expected IO.
675 : : * The caller should first set raid_io->base_bdev_io_remaining. This function
676 : : * will decrement this counter by the value of the 'completed' parameter and
677 : : * complete the raid_io if the counter reaches 0. The caller is free to
678 : : * interpret the 'base_bdev_io_remaining' and 'completed' values as needed,
679 : : * it can represent e.g. blocks or IOs.
680 : : * params:
681 : : * raid_io - pointer to raid_bdev_io
682 : : * completed - the part of the raid_io that has been completed
683 : : * status - status of the base IO
684 : : * returns:
685 : : * true - if the raid_io is completed
686 : : * false - otherwise
687 : : */
688 : : bool
689 : 3492973 : raid_bdev_io_complete_part(struct raid_bdev_io *raid_io, uint64_t completed,
690 : : enum spdk_bdev_io_status status)
691 : : {
692 [ - + # # : 3492973 : assert(raid_io->base_bdev_io_remaining >= completed);
# # # # ]
693 [ # # # # ]: 3492973 : raid_io->base_bdev_io_remaining -= completed;
694 : :
695 [ + + # # : 3492973 : if (status != raid_io->base_bdev_io_status_default) {
# # ]
696 [ # # # # ]: 1594628 : raid_io->base_bdev_io_status = status;
697 : 0 : }
698 : :
699 [ + + # # : 3492973 : if (raid_io->base_bdev_io_remaining == 0) {
# # ]
700 [ # # # # ]: 1911129 : raid_bdev_io_complete(raid_io, raid_io->base_bdev_io_status);
701 : 1911129 : return true;
702 : : } else {
703 : 1581844 : return false;
704 : : }
705 : 0 : }
706 : :
707 : : /*
708 : : * brief:
709 : : * raid_bdev_queue_io_wait function processes the IO which failed to submit.
710 : : * It will try to queue the IOs after storing the context to bdev wait queue logic.
711 : : * params:
712 : : * raid_io - pointer to raid_bdev_io
713 : : * bdev - the block device that the IO is submitted to
714 : : * ch - io channel
715 : : * cb_fn - callback when the spdk_bdev_io for bdev becomes available
716 : : * returns:
717 : : * none
718 : : */
719 : : void
720 : 0 : raid_bdev_queue_io_wait(struct raid_bdev_io *raid_io, struct spdk_bdev *bdev,
721 : : struct spdk_io_channel *ch, spdk_bdev_io_wait_cb cb_fn)
722 : : {
723 [ # # # # : 0 : raid_io->waitq_entry.bdev = bdev;
# # ]
724 [ # # # # : 0 : raid_io->waitq_entry.cb_fn = cb_fn;
# # ]
725 [ # # # # : 0 : raid_io->waitq_entry.cb_arg = raid_io;
# # ]
726 [ # # ]: 0 : spdk_bdev_queue_io_wait(bdev, ch, &raid_io->waitq_entry);
727 : 0 : }
728 : :
729 : : static void
730 : 127 : raid_base_bdev_reset_complete(struct spdk_bdev_io *bdev_io, bool success, void *cb_arg)
731 : : {
732 : 127 : struct raid_bdev_io *raid_io = cb_arg;
733 : :
734 : 127 : spdk_bdev_free_io(bdev_io);
735 : :
736 [ + - ]: 127 : raid_bdev_io_complete_part(raid_io, 1, success ?
737 : : SPDK_BDEV_IO_STATUS_SUCCESS :
738 : : SPDK_BDEV_IO_STATUS_FAILED);
739 : 127 : }
740 : :
741 : : static void raid_bdev_submit_reset_request(struct raid_bdev_io *raid_io);
742 : :
743 : : static void
744 : 0 : _raid_bdev_submit_reset_request(void *_raid_io)
745 : : {
746 : 0 : struct raid_bdev_io *raid_io = _raid_io;
747 : :
748 : 0 : raid_bdev_submit_reset_request(raid_io);
749 : 0 : }
750 : :
751 : : /*
752 : : * brief:
753 : : * raid_bdev_submit_reset_request function submits reset requests
754 : : * to member disks; it will submit as many as possible unless a reset fails with -ENOMEM, in
755 : : * which case it will queue it for later submission
756 : : * params:
757 : : * raid_io
758 : : * returns:
759 : : * none
760 : : */
761 : : static void
762 : 18 : raid_bdev_submit_reset_request(struct raid_bdev_io *raid_io)
763 : : {
764 : : struct raid_bdev *raid_bdev;
765 : : int ret;
766 : : uint8_t i;
767 : : struct raid_base_bdev_info *base_info;
768 : : struct spdk_io_channel *base_ch;
769 : :
770 [ # # # # ]: 18 : raid_bdev = raid_io->raid_bdev;
771 : :
772 [ + - # # : 18 : if (raid_io->base_bdev_io_remaining == 0) {
# # ]
773 [ # # # # : 18 : raid_io->base_bdev_io_remaining = raid_bdev->num_base_bdevs;
# # # # ]
774 : 0 : }
775 : :
776 [ + + # # : 145 : for (i = raid_io->base_bdev_io_submitted; i < raid_bdev->num_base_bdevs; i++) {
# # # # #
# ]
777 [ # # # # : 127 : base_info = &raid_bdev->base_bdev_info[i];
# # ]
778 [ # # # # : 127 : base_ch = raid_io->raid_ch->base_channel[i];
# # # # #
# # # ]
779 [ - + ]: 127 : if (base_ch == NULL) {
780 [ # # ]: 0 : raid_io->base_bdev_io_submitted++;
781 : 0 : raid_bdev_io_complete_part(raid_io, 1, SPDK_BDEV_IO_STATUS_SUCCESS);
782 : 0 : continue;
783 : : }
784 [ # # # # ]: 127 : ret = spdk_bdev_reset(base_info->desc, base_ch,
785 : 0 : raid_base_bdev_reset_complete, raid_io);
786 [ + - ]: 127 : if (ret == 0) {
787 [ # # ]: 127 : raid_io->base_bdev_io_submitted++;
788 [ # # ]: 0 : } else if (ret == -ENOMEM) {
789 [ # # # # ]: 0 : raid_bdev_queue_io_wait(raid_io, spdk_bdev_desc_get_bdev(base_info->desc),
790 : 0 : base_ch, _raid_bdev_submit_reset_request);
791 : 0 : return;
792 : : } else {
793 : 0 : SPDK_ERRLOG("bdev io submit error not due to ENOMEM, it should not happen\n");
794 [ # # ]: 0 : assert(false);
795 : : raid_bdev_io_complete(raid_io, SPDK_BDEV_IO_STATUS_FAILED);
796 : : return;
797 : : }
798 : 0 : }
799 : 0 : }
800 : :
801 : : static void
802 : 132 : raid_bdev_io_split(struct raid_bdev_io *raid_io, uint64_t split_offset)
803 : : {
804 [ # # # # ]: 132 : struct raid_bdev *raid_bdev = raid_io->raid_bdev;
805 [ # # # # : 132 : size_t iov_offset = split_offset * raid_bdev->bdev.blocklen;
# # ]
806 : : int i;
807 : :
808 [ - + # # ]: 132 : assert(split_offset != 0);
809 [ - + # # : 132 : assert(raid_io->split.offset == RAID_OFFSET_BLOCKS_INVALID);
# # # # #
# ]
810 [ # # # # : 132 : raid_io->split.offset = split_offset;
# # ]
811 : :
812 [ # # # # ]: 132 : raid_io->offset_blocks += split_offset;
813 [ # # # # ]: 132 : raid_io->num_blocks -= split_offset;
814 [ + + # # : 132 : if (raid_io->md_buf != NULL) {
# # ]
815 [ # # # # : 15 : raid_io->md_buf += (split_offset * raid_bdev->bdev.md_len);
# # # # #
# ]
816 : 0 : }
817 : :
818 [ + - # # : 153 : for (i = 0; i < raid_io->iovcnt; i++) {
# # # # ]
819 [ # # # # : 153 : struct iovec *iov = &raid_io->iovs[i];
# # ]
820 : :
821 [ + + # # : 153 : if (iov_offset < iov->iov_len) {
# # ]
822 [ + + ]: 132 : if (iov_offset == 0) {
823 [ # # # # : 3 : raid_io->split.iov = NULL;
# # ]
824 : 0 : } else {
825 [ # # # # : 129 : raid_io->split.iov = iov;
# # ]
826 [ # # # # ]: 129 : raid_io->split.iov_copy = *iov;
827 [ # # # # ]: 129 : iov->iov_base += iov_offset;
828 [ # # # # ]: 129 : iov->iov_len -= iov_offset;
829 : : }
830 [ # # # # : 132 : raid_io->iovs += i;
# # ]
831 [ # # # # : 132 : raid_io->iovcnt -= i;
# # ]
832 : 132 : break;
833 : : }
834 : :
835 [ # # # # ]: 21 : iov_offset -= iov->iov_len;
836 : 0 : }
837 : 132 : }
838 : :
839 : : static void
840 : 12399697 : raid_bdev_submit_rw_request(struct raid_bdev_io *raid_io)
841 : : {
842 [ # # # # ]: 12399697 : struct raid_bdev_io_channel *raid_ch = raid_io->raid_ch;
843 : :
844 [ + + # # : 12399697 : if (raid_ch->process.offset != RAID_OFFSET_BLOCKS_INVALID) {
# # # # ]
845 [ # # # # ]: 1733 : uint64_t offset_begin = raid_io->offset_blocks;
846 [ # # # # ]: 1733 : uint64_t offset_end = offset_begin + raid_io->num_blocks;
847 : :
848 [ + + # # : 1733 : if (offset_end > raid_ch->process.offset) {
# # # # ]
849 [ + + # # : 1287 : if (offset_begin < raid_ch->process.offset) {
# # # # ]
850 : : /*
851 : : * If the I/O spans both the processed and unprocessed ranges,
852 : : * split it and first handle the unprocessed part. After it
853 : : * completes, the rest will be handled.
854 : : * This situation occurs when the process thread is not active
855 : : * or is waiting for the process window range to be locked
856 : : * (quiesced). When a window is being processed, such I/Os will be
857 : : * deferred by the bdev layer until the window is unlocked.
858 : : */
859 [ - + + + : 132 : SPDK_DEBUGLOG(bdev_raid, "split: process_offset: %lu offset_begin: %lu offset_end: %lu\n",
# # # # #
# # # ]
860 : : raid_ch->process.offset, offset_begin, offset_end);
861 [ # # # # : 132 : raid_bdev_io_split(raid_io, raid_ch->process.offset - offset_begin);
# # ]
862 : 0 : }
863 : 0 : } else {
864 : : /* Use the child channel, which corresponds to the already processed range */
865 [ # # # # : 446 : raid_io->raid_ch = raid_ch->process.ch_processed;
# # # # #
# ]
866 : : }
867 : 0 : }
868 : :
869 [ # # # # : 12399697 : raid_io->raid_bdev->module->submit_rw_request(raid_io);
# # # # #
# # # # #
# # ]
870 : 12399697 : }
871 : :
872 : : /*
873 : : * brief:
874 : : * Callback function to spdk_bdev_io_get_buf.
875 : : * params:
876 : : * ch - pointer to raid bdev io channel
877 : : * bdev_io - pointer to parent bdev_io on raid bdev device
878 : : * success - True if buffer is allocated or false otherwise.
879 : : * returns:
880 : : * none
881 : : */
882 : : static void
883 : 4937226 : raid_bdev_get_buf_cb(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io,
884 : : bool success)
885 : : {
886 [ # # ]: 4937226 : struct raid_bdev_io *raid_io = (struct raid_bdev_io *)bdev_io->driver_ctx;
887 : :
888 [ - + # # ]: 4937226 : if (!success) {
889 : 0 : raid_bdev_io_complete(raid_io, SPDK_BDEV_IO_STATUS_FAILED);
890 : 0 : return;
891 : : }
892 : :
893 : 4937226 : raid_bdev_submit_rw_request(raid_io);
894 : 0 : }
895 : :
896 : : void
897 : 13357245 : raid_bdev_io_init(struct raid_bdev_io *raid_io, struct raid_bdev_io_channel *raid_ch,
898 : : enum spdk_bdev_io_type type, uint64_t offset_blocks,
899 : : uint64_t num_blocks, struct iovec *iovs, int iovcnt, void *md_buf,
900 : : struct spdk_memory_domain *memory_domain, void *memory_domain_ctx)
901 : : {
902 : 13357245 : struct spdk_io_channel *ch = spdk_io_channel_from_ctx(raid_ch);
903 : 13357245 : struct raid_bdev *raid_bdev = spdk_io_channel_get_io_device(ch);
904 : :
905 [ # # # # ]: 13357245 : raid_io->type = type;
906 [ # # # # ]: 13357245 : raid_io->offset_blocks = offset_blocks;
907 [ # # # # ]: 13357245 : raid_io->num_blocks = num_blocks;
908 [ # # # # ]: 13357245 : raid_io->iovs = iovs;
909 [ # # # # ]: 13357245 : raid_io->iovcnt = iovcnt;
910 [ # # # # ]: 13357245 : raid_io->memory_domain = memory_domain;
911 [ # # # # ]: 13357245 : raid_io->memory_domain_ctx = memory_domain_ctx;
912 [ # # # # ]: 13357245 : raid_io->md_buf = md_buf;
913 : :
914 [ # # # # ]: 13357245 : raid_io->raid_bdev = raid_bdev;
915 [ # # # # ]: 13357245 : raid_io->raid_ch = raid_ch;
916 [ # # # # ]: 13357245 : raid_io->base_bdev_io_remaining = 0;
917 [ # # # # ]: 13357245 : raid_io->base_bdev_io_submitted = 0;
918 [ # # # # ]: 13357245 : raid_io->completion_cb = NULL;
919 [ # # # # : 13357245 : raid_io->split.offset = RAID_OFFSET_BLOCKS_INVALID;
# # ]
920 : :
921 : 13357245 : raid_bdev_io_set_default_status(raid_io, SPDK_BDEV_IO_STATUS_SUCCESS);
922 : 13357245 : }
923 : :
924 : : /*
925 : : * brief:
926 : : * raid_bdev_submit_request function is the submit_request function pointer of
927 : : * raid bdev function table. This is used to submit the io on raid_bdev to below
928 : : * layers.
929 : : * params:
930 : : * ch - pointer to raid bdev io channel
931 : : * bdev_io - pointer to parent bdev_io on raid bdev device
932 : : * returns:
933 : : * none
934 : : */
935 : : static void
936 : 13353925 : raid_bdev_submit_request(struct spdk_io_channel *ch, struct spdk_bdev_io *bdev_io)
937 : : {
938 [ # # ]: 13353925 : struct raid_bdev_io *raid_io = (struct raid_bdev_io *)bdev_io->driver_ctx;
939 : :
940 [ # # # # ]: 13353925 : raid_bdev_io_init(raid_io, spdk_io_channel_get_ctx(ch), bdev_io->type,
941 [ # # # # : 0 : bdev_io->u.bdev.offset_blocks, bdev_io->u.bdev.num_blocks,
# # # # #
# # # # #
# # ]
942 [ # # # # : 0 : bdev_io->u.bdev.iovs, bdev_io->u.bdev.iovcnt, bdev_io->u.bdev.md_buf,
# # # # #
# # # # #
# # # # #
# # # #
# ]
943 [ # # # # : 0 : bdev_io->u.bdev.memory_domain, bdev_io->u.bdev.memory_domain_ctx);
# # # # #
# # # # #
# # ]
944 : :
945 [ + + - + : 13353925 : spdk_trace_record(TRACE_BDEV_RAID_IO_START, 0, 0, (uintptr_t)raid_io, (uintptr_t)bdev_io);
# # # # #
# # # # #
# # ]
946 : :
947 [ + + + + : 13353925 : switch (bdev_io->type) {
- # # #
# ]
948 : 4937226 : case SPDK_BDEV_IO_TYPE_READ:
949 : 4937226 : spdk_bdev_io_get_buf(bdev_io, raid_bdev_get_buf_cb,
950 [ # # # # : 4937226 : bdev_io->u.bdev.num_blocks * bdev_io->bdev->blocklen);
# # # # #
# # # # #
# # ]
951 : 4937226 : break;
952 : 7462471 : case SPDK_BDEV_IO_TYPE_WRITE:
953 : 7462471 : raid_bdev_submit_rw_request(raid_io);
954 : 7462471 : break;
955 : :
956 : 18 : case SPDK_BDEV_IO_TYPE_RESET:
957 : 18 : raid_bdev_submit_reset_request(raid_io);
958 : 18 : break;
959 : :
960 : 954210 : case SPDK_BDEV_IO_TYPE_FLUSH:
961 : : case SPDK_BDEV_IO_TYPE_UNMAP:
962 [ - + # # : 954210 : if (raid_io->raid_bdev->process != NULL) {
# # # # #
# ]
963 : : /* TODO: rebuild support */
964 : 0 : raid_bdev_io_complete(raid_io, SPDK_BDEV_IO_STATUS_FAILED);
965 : 0 : return;
966 : : }
967 [ # # # # : 954210 : raid_io->raid_bdev->module->submit_null_payload_request(raid_io);
# # # # #
# # # # #
# # ]
968 : 954210 : break;
969 : :
970 : 0 : default:
971 [ # # # # ]: 0 : SPDK_ERRLOG("submit request, invalid io type %u\n", bdev_io->type);
972 : 0 : raid_bdev_io_complete(raid_io, SPDK_BDEV_IO_STATUS_FAILED);
973 : 0 : break;
974 : : }
975 : 0 : }
976 : :
977 : : /*
978 : : * brief:
979 : : * _raid_bdev_io_type_supported checks whether io_type is supported in
980 : : * all base bdev modules of raid bdev module. If anyone among the base_bdevs
981 : : * doesn't support, the raid device doesn't supports.
982 : : *
983 : : * params:
984 : : * raid_bdev - pointer to raid bdev context
985 : : * io_type - io type
986 : : * returns:
987 : : * true - io_type is supported
988 : : * false - io_type is not supported
989 : : */
990 : : inline static bool
991 : 1178 : _raid_bdev_io_type_supported(struct raid_bdev *raid_bdev, enum spdk_bdev_io_type io_type)
992 : : {
993 : : struct raid_base_bdev_info *base_info;
994 : :
995 [ + + + + ]: 1178 : if (io_type == SPDK_BDEV_IO_TYPE_FLUSH ||
996 : 0 : io_type == SPDK_BDEV_IO_TYPE_UNMAP) {
997 [ + + # # : 979 : if (raid_bdev->module->submit_null_payload_request == NULL) {
# # # # #
# ]
998 : 212 : return false;
999 : : }
1000 : 0 : }
1001 : :
1002 [ + + # # : 3199 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
1003 [ + + # # : 2240 : if (base_info->desc == NULL) {
# # ]
1004 : 8 : continue;
1005 : : }
1006 : :
1007 [ + + # # : 2232 : if (spdk_bdev_io_type_supported(spdk_bdev_desc_get_bdev(base_info->desc), io_type) == false) {
# # ]
1008 : 7 : return false;
1009 : : }
1010 : 0 : }
1011 : :
1012 : 959 : return true;
1013 : 0 : }
1014 : :
1015 : : /*
1016 : : * brief:
1017 : : * raid_bdev_io_type_supported is the io_supported function for bdev function
1018 : : * table which returns whether the particular io type is supported or not by
1019 : : * raid bdev module
1020 : : * params:
1021 : : * ctx - pointer to raid bdev context
1022 : : * type - io type
1023 : : * returns:
1024 : : * true - io_type is supported
1025 : : * false - io_type is not supported
1026 : : */
1027 : : static bool
1028 : 386775 : raid_bdev_io_type_supported(void *ctx, enum spdk_bdev_io_type io_type)
1029 : : {
1030 [ + + + ]: 386775 : switch (io_type) {
1031 : 127851 : case SPDK_BDEV_IO_TYPE_READ:
1032 : : case SPDK_BDEV_IO_TYPE_WRITE:
1033 : 127851 : return true;
1034 : :
1035 : 1178 : case SPDK_BDEV_IO_TYPE_FLUSH:
1036 : : case SPDK_BDEV_IO_TYPE_RESET:
1037 : : case SPDK_BDEV_IO_TYPE_UNMAP:
1038 : 1178 : return _raid_bdev_io_type_supported(ctx, io_type);
1039 : :
1040 : 257746 : default:
1041 : 257746 : return false;
1042 : : }
1043 : :
1044 : : return false;
1045 : 0 : }
1046 : :
1047 : : /*
1048 : : * brief:
1049 : : * raid_bdev_get_io_channel is the get_io_channel function table pointer for
1050 : : * raid bdev. This is used to return the io channel for this raid bdev
1051 : : * params:
1052 : : * ctxt - pointer to raid_bdev
1053 : : * returns:
1054 : : * pointer to io channel for raid bdev
1055 : : */
1056 : : static struct spdk_io_channel *
1057 : 543 : raid_bdev_get_io_channel(void *ctxt)
1058 : : {
1059 : 543 : struct raid_bdev *raid_bdev = ctxt;
1060 : :
1061 : 543 : return spdk_get_io_channel(raid_bdev);
1062 : : }
1063 : :
1064 : : void
1065 : 1614 : raid_bdev_write_info_json(struct raid_bdev *raid_bdev, struct spdk_json_write_ctx *w)
1066 : : {
1067 : : struct raid_base_bdev_info *base_info;
1068 : :
1069 [ - + # # ]: 1614 : assert(raid_bdev != NULL);
1070 [ - + # # ]: 1614 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
1071 : :
1072 [ # # # # ]: 1614 : spdk_json_write_named_uuid(w, "uuid", &raid_bdev->bdev.uuid);
1073 [ # # # # ]: 1614 : spdk_json_write_named_uint32(w, "strip_size_kb", raid_bdev->strip_size_kb);
1074 [ # # # # ]: 1614 : spdk_json_write_named_string(w, "state", raid_bdev_state_to_str(raid_bdev->state));
1075 [ # # # # ]: 1614 : spdk_json_write_named_string(w, "raid_level", raid_bdev_level_to_str(raid_bdev->level));
1076 [ - + # # : 1614 : spdk_json_write_named_bool(w, "superblock", raid_bdev->superblock_enabled);
# # ]
1077 [ # # # # ]: 1614 : spdk_json_write_named_uint32(w, "num_base_bdevs", raid_bdev->num_base_bdevs);
1078 [ # # # # ]: 1614 : spdk_json_write_named_uint32(w, "num_base_bdevs_discovered", raid_bdev->num_base_bdevs_discovered);
1079 : 1614 : spdk_json_write_named_uint32(w, "num_base_bdevs_operational",
1080 [ # # # # ]: 1614 : raid_bdev->num_base_bdevs_operational);
1081 [ + + # # : 1614 : if (raid_bdev->process) {
# # ]
1082 [ # # # # ]: 107 : struct raid_bdev_process *process = raid_bdev->process;
1083 [ # # # # ]: 107 : uint64_t offset = process->window_offset;
1084 : :
1085 : 107 : spdk_json_write_named_object_begin(w, "process");
1086 : 107 : spdk_json_write_name(w, "type");
1087 [ # # # # ]: 107 : spdk_json_write_string(w, raid_bdev_process_to_str(process->type));
1088 [ # # # # : 107 : spdk_json_write_named_string(w, "target", process->target->name);
# # # # ]
1089 : 107 : spdk_json_write_named_object_begin(w, "progress");
1090 : 107 : spdk_json_write_named_uint64(w, "blocks", offset);
1091 [ # # # # : 107 : spdk_json_write_named_uint32(w, "percent", offset * 100.0 / raid_bdev->bdev.blockcnt);
# # # # ]
1092 : 107 : spdk_json_write_object_end(w);
1093 : 107 : spdk_json_write_object_end(w);
1094 : 0 : }
1095 : 1614 : spdk_json_write_name(w, "base_bdevs_list");
1096 : 1614 : spdk_json_write_array_begin(w);
1097 [ + + # # : 7174 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
1098 : 5560 : spdk_json_write_object_begin(w);
1099 : 5560 : spdk_json_write_name(w, "name");
1100 [ + + # # : 5560 : if (base_info->name) {
# # ]
1101 [ # # # # ]: 4555 : spdk_json_write_string(w, base_info->name);
1102 : 0 : } else {
1103 : 1005 : spdk_json_write_null(w);
1104 : : }
1105 [ # # ]: 5560 : spdk_json_write_named_uuid(w, "uuid", &base_info->uuid);
1106 [ - + # # : 5560 : spdk_json_write_named_bool(w, "is_configured", base_info->is_configured);
# # ]
1107 [ # # # # ]: 5560 : spdk_json_write_named_uint64(w, "data_offset", base_info->data_offset);
1108 [ # # # # ]: 5560 : spdk_json_write_named_uint64(w, "data_size", base_info->data_size);
1109 : 5560 : spdk_json_write_object_end(w);
1110 : 0 : }
1111 : 1614 : spdk_json_write_array_end(w);
1112 : 1614 : }
1113 : :
1114 : : /*
1115 : : * brief:
1116 : : * raid_bdev_dump_info_json is the function table pointer for raid bdev
1117 : : * params:
1118 : : * ctx - pointer to raid_bdev
1119 : : * w - pointer to json context
1120 : : * returns:
1121 : : * 0 - success
1122 : : * non zero - failure
1123 : : */
1124 : : static int
1125 : 186 : raid_bdev_dump_info_json(void *ctx, struct spdk_json_write_ctx *w)
1126 : : {
1127 : 186 : struct raid_bdev *raid_bdev = ctx;
1128 : :
1129 [ - + + + : 186 : SPDK_DEBUGLOG(bdev_raid, "raid_bdev_dump_config_json\n");
# # ]
1130 : :
1131 : : /* Dump the raid bdev configuration related information */
1132 : 186 : spdk_json_write_named_object_begin(w, "raid");
1133 : 186 : raid_bdev_write_info_json(raid_bdev, w);
1134 : 186 : spdk_json_write_object_end(w);
1135 : :
1136 : 186 : return 0;
1137 : : }
1138 : :
1139 : : /*
1140 : : * brief:
1141 : : * raid_bdev_write_config_json is the function table pointer for raid bdev
1142 : : * params:
1143 : : * bdev - pointer to spdk_bdev
1144 : : * w - pointer to json context
1145 : : * returns:
1146 : : * none
1147 : : */
1148 : : static void
1149 : 13 : raid_bdev_write_config_json(struct spdk_bdev *bdev, struct spdk_json_write_ctx *w)
1150 : : {
1151 [ # # # # ]: 13 : struct raid_bdev *raid_bdev = bdev->ctxt;
1152 : : struct raid_base_bdev_info *base_info;
1153 : :
1154 [ - + # # ]: 13 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
1155 : :
1156 [ - + - + : 13 : if (raid_bdev->superblock_enabled) {
# # # # ]
1157 : : /* raid bdev configuration is stored in the superblock */
1158 : 0 : return;
1159 : : }
1160 : :
1161 : 13 : spdk_json_write_object_begin(w);
1162 : :
1163 : 13 : spdk_json_write_named_string(w, "method", "bdev_raid_create");
1164 : :
1165 : 13 : spdk_json_write_named_object_begin(w, "params");
1166 [ # # # # ]: 13 : spdk_json_write_named_string(w, "name", bdev->name);
1167 [ # # # # ]: 13 : spdk_json_write_named_uuid(w, "uuid", &raid_bdev->bdev.uuid);
1168 [ + + # # : 13 : if (raid_bdev->strip_size_kb != 0) {
# # ]
1169 [ # # # # ]: 9 : spdk_json_write_named_uint32(w, "strip_size_kb", raid_bdev->strip_size_kb);
1170 : 0 : }
1171 [ # # # # ]: 13 : spdk_json_write_named_string(w, "raid_level", raid_bdev_level_to_str(raid_bdev->level));
1172 : :
1173 : 13 : spdk_json_write_named_array_begin(w, "base_bdevs");
1174 [ + + # # : 40 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
1175 [ + - # # : 27 : if (base_info->name) {
# # ]
1176 [ # # # # ]: 27 : spdk_json_write_string(w, base_info->name);
1177 : 0 : } else {
1178 : 0 : char str[32];
1179 : :
1180 [ # # ]: 0 : snprintf(str, sizeof(str), "removed_base_bdev_%u", raid_bdev_base_bdev_slot(base_info));
1181 : 0 : spdk_json_write_string(w, str);
1182 : : }
1183 : 0 : }
1184 : 13 : spdk_json_write_array_end(w);
1185 : 13 : spdk_json_write_object_end(w);
1186 : :
1187 : 13 : spdk_json_write_object_end(w);
1188 : 0 : }
1189 : :
1190 : : static int
1191 : 2445 : raid_bdev_get_memory_domains(void *ctx, struct spdk_memory_domain **domains, int array_size)
1192 : : {
1193 : 2445 : struct raid_bdev *raid_bdev = ctx;
1194 : : struct raid_base_bdev_info *base_info;
1195 : 2445 : int domains_count = 0, rc = 0;
1196 : :
1197 [ - + + + : 2445 : if (raid_bdev->module->memory_domains_supported == false) {
# # # # #
# # # ]
1198 : 217 : return 0;
1199 : : }
1200 : :
1201 : : /* First loop to get the number of memory domains */
1202 [ + + # # : 7456 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
1203 [ - + + + : 5228 : if (base_info->is_configured == false) {
# # # # ]
1204 : 86 : continue;
1205 : : }
1206 [ # # # # ]: 5142 : rc = spdk_bdev_get_memory_domains(spdk_bdev_desc_get_bdev(base_info->desc), NULL, 0);
1207 [ - + ]: 5142 : if (rc < 0) {
1208 : 0 : return rc;
1209 : : }
1210 [ # # ]: 5142 : domains_count += rc;
1211 : 0 : }
1212 : :
1213 [ + + - + ]: 2228 : if (!domains || array_size < domains_count) {
1214 : 2071 : return domains_count;
1215 : : }
1216 : :
1217 [ + + # # : 555 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
1218 [ - + + + : 398 : if (base_info->is_configured == false) {
# # # # ]
1219 : 6 : continue;
1220 : : }
1221 [ # # # # ]: 392 : rc = spdk_bdev_get_memory_domains(spdk_bdev_desc_get_bdev(base_info->desc), domains, array_size);
1222 [ - + ]: 392 : if (rc < 0) {
1223 : 0 : return rc;
1224 : : }
1225 [ # # ]: 392 : domains += rc;
1226 [ # # ]: 392 : array_size -= rc;
1227 : 0 : }
1228 : :
1229 : 157 : return domains_count;
1230 : 0 : }
1231 : :
1232 : : /* g_raid_bdev_fn_table is the function table for raid bdev */
1233 : : static const struct spdk_bdev_fn_table g_raid_bdev_fn_table = {
1234 : : .destruct = raid_bdev_destruct,
1235 : : .submit_request = raid_bdev_submit_request,
1236 : : .io_type_supported = raid_bdev_io_type_supported,
1237 : : .get_io_channel = raid_bdev_get_io_channel,
1238 : : .dump_info_json = raid_bdev_dump_info_json,
1239 : : .write_config_json = raid_bdev_write_config_json,
1240 : : .get_memory_domains = raid_bdev_get_memory_domains,
1241 : : };
1242 : :
1243 : : struct raid_bdev *
1244 : 694 : raid_bdev_find_by_name(const char *name)
1245 : : {
1246 : : struct raid_bdev *raid_bdev;
1247 : :
1248 [ + + # # : 844 : TAILQ_FOREACH(raid_bdev, &g_raid_bdev_list, global_link) {
# # # # ]
1249 [ + + - + : 425 : if (strcmp(raid_bdev->bdev.name, name) == 0) {
+ + # # #
# # # ]
1250 : 275 : return raid_bdev;
1251 : : }
1252 : 0 : }
1253 : :
1254 : 419 : return NULL;
1255 : 0 : }
1256 : :
1257 : : static struct raid_bdev *
1258 : 224 : raid_bdev_find_by_uuid(const struct spdk_uuid *uuid)
1259 : : {
1260 : : struct raid_bdev *raid_bdev;
1261 : :
1262 [ + + # # : 224 : TAILQ_FOREACH(raid_bdev, &g_raid_bdev_list, global_link) {
# # # # ]
1263 [ + - # # : 183 : if (spdk_uuid_compare(&raid_bdev->bdev.uuid, uuid) == 0) {
# # ]
1264 : 183 : return raid_bdev;
1265 : : }
1266 : 0 : }
1267 : :
1268 : 41 : return NULL;
1269 : 0 : }
1270 : :
1271 : : static struct {
1272 : : const char *name;
1273 : : enum raid_level value;
1274 : : } g_raid_level_names[] = {
1275 : : { "raid0", RAID0 },
1276 : : { "0", RAID0 },
1277 : : { "raid1", RAID1 },
1278 : : { "1", RAID1 },
1279 : : { "raid5f", RAID5F },
1280 : : { "5f", RAID5F },
1281 : : { "concat", CONCAT },
1282 : : { }
1283 : : };
1284 : :
1285 : : const char *g_raid_state_names[] = {
1286 : : [RAID_BDEV_STATE_ONLINE] = "online",
1287 : : [RAID_BDEV_STATE_CONFIGURING] = "configuring",
1288 : : [RAID_BDEV_STATE_OFFLINE] = "offline",
1289 : : [RAID_BDEV_STATE_MAX] = NULL
1290 : : };
1291 : :
1292 : : static const char *g_raid_process_type_names[] = {
1293 : : [RAID_PROCESS_NONE] = "none",
1294 : : [RAID_PROCESS_REBUILD] = "rebuild",
1295 : : [RAID_PROCESS_MAX] = NULL
1296 : : };
1297 : :
1298 : : /* We have to use the typedef in the function declaration to appease astyle. */
1299 : : typedef enum raid_level raid_level_t;
1300 : : typedef enum raid_bdev_state raid_bdev_state_t;
1301 : :
1302 : : raid_level_t
1303 : 322 : raid_bdev_str_to_level(const char *str)
1304 : : {
1305 : : unsigned int i;
1306 : :
1307 [ - + # # ]: 322 : assert(str != NULL);
1308 : :
1309 [ + + # # : 1192 : for (i = 0; g_raid_level_names[i].name != NULL; i++) {
# # # # #
# ]
1310 [ + + - + : 1189 : if (strcasecmp(g_raid_level_names[i].name, str) == 0) {
+ + # # #
# # # #
# ]
1311 [ # # # # : 319 : return g_raid_level_names[i].value;
# # # # ]
1312 : : }
1313 : 0 : }
1314 : :
1315 : 3 : return INVALID_RAID_LEVEL;
1316 : 0 : }
1317 : :
1318 : : const char *
1319 : 1639 : raid_bdev_level_to_str(enum raid_level level)
1320 : : {
1321 : : unsigned int i;
1322 : :
1323 [ + + # # : 6157 : for (i = 0; g_raid_level_names[i].name != NULL; i++) {
# # # # #
# ]
1324 [ + + # # : 6127 : if (g_raid_level_names[i].value == level) {
# # # # #
# ]
1325 [ # # # # : 1609 : return g_raid_level_names[i].name;
# # # # ]
1326 : : }
1327 : 0 : }
1328 : :
1329 : 30 : return "";
1330 : 0 : }
1331 : :
1332 : : raid_bdev_state_t
1333 : 1512 : raid_bdev_str_to_state(const char *str)
1334 : : {
1335 : : unsigned int i;
1336 : :
1337 [ - + # # ]: 1512 : assert(str != NULL);
1338 : :
1339 [ + + ]: 4726 : for (i = 0; i < RAID_BDEV_STATE_MAX; i++) {
1340 [ + + - + : 3748 : if (strcasecmp(g_raid_state_names[i], str) == 0) {
+ + # # #
# # # ]
1341 : 534 : break;
1342 : : }
1343 : 0 : }
1344 : :
1345 : 1512 : return i;
1346 : : }
1347 : :
1348 : : const char *
1349 : 1822 : raid_bdev_state_to_str(enum raid_bdev_state state)
1350 : : {
1351 [ - + ]: 1822 : if (state >= RAID_BDEV_STATE_MAX) {
1352 : 0 : return "";
1353 : : }
1354 : :
1355 [ # # # # : 1822 : return g_raid_state_names[state];
# # ]
1356 : 0 : }
1357 : :
1358 : : const char *
1359 : 272 : raid_bdev_process_to_str(enum raid_process_type value)
1360 : : {
1361 [ - + ]: 272 : if (value >= RAID_PROCESS_MAX) {
1362 : 0 : return "";
1363 : : }
1364 : :
1365 [ # # # # : 272 : return g_raid_process_type_names[value];
# # ]
1366 : 0 : }
1367 : :
1368 : : /*
1369 : : * brief:
1370 : : * raid_bdev_fini_start is called when bdev layer is starting the
1371 : : * shutdown process
1372 : : * params:
1373 : : * none
1374 : : * returns:
1375 : : * none
1376 : : */
1377 : : static void
1378 : 1935 : raid_bdev_fini_start(void)
1379 : : {
1380 : : struct raid_bdev *raid_bdev;
1381 : : struct raid_base_bdev_info *base_info;
1382 : :
1383 [ + + + + : 1935 : SPDK_DEBUGLOG(bdev_raid, "raid_bdev_fini_start\n");
+ - ]
1384 : :
1385 [ + + # # : 2099 : TAILQ_FOREACH(raid_bdev, &g_raid_bdev_list, global_link) {
# # # # ]
1386 [ - + # # : 164 : if (raid_bdev->state != RAID_BDEV_STATE_ONLINE) {
# # ]
1387 [ # # # # : 0 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
1388 : 0 : raid_bdev_free_base_bdev_resource(base_info);
1389 : 0 : }
1390 : 0 : }
1391 : 0 : }
1392 : :
1393 : 1935 : g_shutdown_started = true;
1394 : 1935 : }
1395 : :
1396 : : /*
1397 : : * brief:
1398 : : * raid_bdev_exit is called on raid bdev module exit time by bdev layer
1399 : : * params:
1400 : : * none
1401 : : * returns:
1402 : : * none
1403 : : */
1404 : : static void
1405 : 1971 : raid_bdev_exit(void)
1406 : : {
1407 : : struct raid_bdev *raid_bdev, *tmp;
1408 : :
1409 [ + + + + : 1971 : SPDK_DEBUGLOG(bdev_raid, "raid_bdev_exit\n");
+ - ]
1410 : :
1411 [ + + # # : 1971 : TAILQ_FOREACH_SAFE(raid_bdev, &g_raid_bdev_list, global_link, tmp) {
# # # # -
+ ]
1412 : 0 : raid_bdev_cleanup_and_free(raid_bdev);
1413 : 0 : }
1414 : 1971 : }
1415 : :
1416 : : static void
1417 : 165 : raid_bdev_opts_config_json(struct spdk_json_write_ctx *w)
1418 : : {
1419 : 165 : spdk_json_write_object_begin(w);
1420 : :
1421 : 165 : spdk_json_write_named_string(w, "method", "bdev_raid_set_options");
1422 : :
1423 : 165 : spdk_json_write_named_object_begin(w, "params");
1424 : 165 : spdk_json_write_named_uint32(w, "process_window_size_kb", g_opts.process_window_size_kb);
1425 : 165 : spdk_json_write_named_uint32(w, "process_max_bandwidth_mb_sec",
1426 [ + - ]: 1 : g_opts.process_max_bandwidth_mb_sec);
1427 : 165 : spdk_json_write_object_end(w);
1428 : :
1429 : 165 : spdk_json_write_object_end(w);
1430 : 165 : }
1431 : :
1432 : : static int
1433 : 165 : raid_bdev_config_json(struct spdk_json_write_ctx *w)
1434 : : {
1435 : 165 : raid_bdev_opts_config_json(w);
1436 : :
1437 : 165 : return 0;
1438 : : }
1439 : :
1440 : : /*
1441 : : * brief:
1442 : : * raid_bdev_get_ctx_size is used to return the context size of bdev_io for raid
1443 : : * module
1444 : : * params:
1445 : : * none
1446 : : * returns:
1447 : : * size of spdk_bdev_io context for raid
1448 : : */
1449 : : static int
1450 : 3433 : raid_bdev_get_ctx_size(void)
1451 : : {
1452 [ + + + + : 3433 : SPDK_DEBUGLOG(bdev_raid, "raid_bdev_get_ctx_size\n");
+ - ]
1453 : 3433 : return sizeof(struct raid_bdev_io);
1454 : : }
1455 : :
1456 : : static struct spdk_bdev_module g_raid_if = {
1457 : : .name = "raid",
1458 : : .module_init = raid_bdev_init,
1459 : : .fini_start = raid_bdev_fini_start,
1460 : : .module_fini = raid_bdev_exit,
1461 : : .config_json = raid_bdev_config_json,
1462 : : .get_ctx_size = raid_bdev_get_ctx_size,
1463 : : .examine_disk = raid_bdev_examine,
1464 : : .async_init = false,
1465 : : .async_fini = false,
1466 : : };
1467 : 2122 : SPDK_BDEV_MODULE_REGISTER(raid, &g_raid_if)
1468 : :
1469 : : /*
1470 : : * brief:
1471 : : * raid_bdev_init is the initialization function for raid bdev module
1472 : : * params:
1473 : : * none
1474 : : * returns:
1475 : : * 0 - success
1476 : : * non zero - failure
1477 : : */
1478 : : static int
1479 : 1971 : raid_bdev_init(void)
1480 : : {
1481 : 1971 : return 0;
1482 : : }
1483 : :
1484 : : static int
1485 : 419 : _raid_bdev_create(const char *name, uint32_t strip_size, uint8_t num_base_bdevs,
1486 : : enum raid_level level, bool superblock_enabled, const struct spdk_uuid *uuid,
1487 : : struct raid_bdev **raid_bdev_out)
1488 : : {
1489 : : struct raid_bdev *raid_bdev;
1490 : : struct spdk_bdev *raid_bdev_gen;
1491 : : struct raid_bdev_module *module;
1492 : : struct raid_base_bdev_info *base_info;
1493 : : uint8_t min_operational;
1494 : :
1495 [ - + - + ]: 419 : if (strnlen(name, RAID_BDEV_SB_NAME_SIZE) == RAID_BDEV_SB_NAME_SIZE) {
1496 : 0 : SPDK_ERRLOG("Raid bdev name '%s' exceeds %d characters\n", name, RAID_BDEV_SB_NAME_SIZE - 1);
1497 : 0 : return -EINVAL;
1498 : : }
1499 : :
1500 [ + + ]: 419 : if (raid_bdev_find_by_name(name) != NULL) {
1501 : 3 : SPDK_ERRLOG("Duplicate raid bdev name found: %s\n", name);
1502 : 3 : return -EEXIST;
1503 : : }
1504 : :
1505 [ + + ]: 416 : if (level == RAID1) {
1506 [ - + ]: 131 : if (strip_size != 0) {
1507 : 0 : SPDK_ERRLOG("Strip size is not supported by raid1\n");
1508 : 0 : return -EINVAL;
1509 : : }
1510 [ + + ]: 285 : } else if (spdk_u32_is_pow2(strip_size) == false) {
1511 : 3 : SPDK_ERRLOG("Invalid strip size %" PRIu32 "\n", strip_size);
1512 : 3 : return -EINVAL;
1513 : : }
1514 : :
1515 : 413 : module = raid_bdev_module_find(level);
1516 [ + + ]: 413 : if (module == NULL) {
1517 : 3 : SPDK_ERRLOG("Unsupported raid level '%d'\n", level);
1518 : 3 : return -EINVAL;
1519 : : }
1520 : :
1521 [ - + # # : 410 : assert(module->base_bdevs_min != 0);
# # # # ]
1522 [ - + # # : 410 : if (num_base_bdevs < module->base_bdevs_min) {
# # ]
1523 [ # # # # ]: 0 : SPDK_ERRLOG("At least %u base devices required for %s\n",
1524 : : module->base_bdevs_min,
1525 : : raid_bdev_level_to_str(level));
1526 : 0 : return -EINVAL;
1527 : : }
1528 : :
1529 [ + + + - : 410 : switch (module->base_bdevs_constraint.type) {
# # # # #
# ]
1530 : 42 : case CONSTRAINT_MAX_BASE_BDEVS_REMOVED:
1531 [ # # # # : 42 : min_operational = num_base_bdevs - module->base_bdevs_constraint.value;
# # ]
1532 : 42 : break;
1533 : 131 : case CONSTRAINT_MIN_BASE_BDEVS_OPERATIONAL:
1534 [ # # # # : 131 : min_operational = module->base_bdevs_constraint.value;
# # ]
1535 : 131 : break;
1536 : 237 : case CONSTRAINT_UNSET:
1537 [ - + # # : 237 : if (module->base_bdevs_constraint.value != 0) {
# # # # ]
1538 [ # # # # : 0 : SPDK_ERRLOG("Unexpected constraint value '%u' provided for raid bdev '%s'.\n",
# # ]
1539 : : (uint8_t)module->base_bdevs_constraint.value, name);
1540 : 0 : return -EINVAL;
1541 : : }
1542 : 237 : min_operational = num_base_bdevs;
1543 : 237 : break;
1544 : 0 : default:
1545 [ # # # # : 0 : SPDK_ERRLOG("Unrecognised constraint type '%u' in module for raid level '%s'.\n",
# # # # #
# ]
1546 : : (uint8_t)module->base_bdevs_constraint.type,
1547 : : raid_bdev_level_to_str(module->level));
1548 : 0 : return -EINVAL;
1549 : : };
1550 : :
1551 [ + - - + ]: 410 : if (min_operational == 0 || min_operational > num_base_bdevs) {
1552 [ # # # # ]: 0 : SPDK_ERRLOG("Wrong constraint value for raid level '%s'.\n",
1553 : : raid_bdev_level_to_str(module->level));
1554 : 0 : return -EINVAL;
1555 : : }
1556 : :
1557 : 410 : raid_bdev = calloc(1, sizeof(*raid_bdev));
1558 [ - + ]: 410 : if (!raid_bdev) {
1559 : 0 : SPDK_ERRLOG("Unable to allocate memory for raid bdev\n");
1560 : 0 : return -ENOMEM;
1561 : : }
1562 : :
1563 [ # # # # ]: 410 : raid_bdev->module = module;
1564 [ # # # # ]: 410 : raid_bdev->num_base_bdevs = num_base_bdevs;
1565 [ # # # # : 410 : raid_bdev->base_bdev_info = calloc(raid_bdev->num_base_bdevs,
# # # # ]
1566 : : sizeof(struct raid_base_bdev_info));
1567 [ - + # # : 410 : if (!raid_bdev->base_bdev_info) {
# # ]
1568 : 0 : SPDK_ERRLOG("Unable able to allocate base bdev info\n");
1569 : 0 : raid_bdev_free(raid_bdev);
1570 : 0 : return -ENOMEM;
1571 : : }
1572 : :
1573 [ + + # # : 2964 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
1574 [ # # # # ]: 2554 : base_info->raid_bdev = raid_bdev;
1575 : 0 : }
1576 : :
1577 : : /* strip_size_kb is from the rpc param. strip_size is in blocks and used
1578 : : * internally and set later.
1579 : : */
1580 [ # # # # ]: 410 : raid_bdev->strip_size = 0;
1581 [ # # # # ]: 410 : raid_bdev->strip_size_kb = strip_size;
1582 [ # # # # ]: 410 : raid_bdev->state = RAID_BDEV_STATE_CONFIGURING;
1583 [ # # # # ]: 410 : raid_bdev->level = level;
1584 [ # # # # ]: 410 : raid_bdev->min_base_bdevs_operational = min_operational;
1585 [ # # # # : 410 : raid_bdev->superblock_enabled = superblock_enabled;
# # ]
1586 : :
1587 [ # # ]: 410 : raid_bdev_gen = &raid_bdev->bdev;
1588 : :
1589 [ - + # # : 410 : raid_bdev_gen->name = strdup(name);
# # ]
1590 [ - + # # : 410 : if (!raid_bdev_gen->name) {
# # ]
1591 : 0 : SPDK_ERRLOG("Unable to allocate name for raid\n");
1592 : 0 : raid_bdev_free(raid_bdev);
1593 : 0 : return -ENOMEM;
1594 : : }
1595 : :
1596 [ # # # # ]: 410 : raid_bdev_gen->product_name = "Raid Volume";
1597 [ # # # # ]: 410 : raid_bdev_gen->ctxt = raid_bdev;
1598 [ # # # # ]: 410 : raid_bdev_gen->fn_table = &g_raid_bdev_fn_table;
1599 [ # # # # ]: 410 : raid_bdev_gen->module = &g_raid_if;
1600 [ # # # # ]: 410 : raid_bdev_gen->write_cache = 0;
1601 [ # # ]: 410 : spdk_uuid_copy(&raid_bdev_gen->uuid, uuid);
1602 : :
1603 [ # # # # : 410 : TAILQ_INSERT_TAIL(&g_raid_bdev_list, raid_bdev, global_link);
# # # # #
# # # # #
# # # # #
# # # #
# ]
1604 : :
1605 [ # # ]: 410 : *raid_bdev_out = raid_bdev;
1606 : :
1607 : 410 : return 0;
1608 : 0 : }
1609 : :
1610 : : /*
1611 : : * brief:
1612 : : * raid_bdev_create allocates raid bdev based on passed configuration
1613 : : * params:
1614 : : * name - name for raid bdev
1615 : : * strip_size - strip size in KB
1616 : : * num_base_bdevs - number of base bdevs
1617 : : * level - raid level
1618 : : * superblock_enabled - true if raid should have superblock
1619 : : * uuid - uuid to set for the bdev
1620 : : * raid_bdev_out - the created raid bdev
1621 : : * returns:
1622 : : * 0 - success
1623 : : * non zero - failure
1624 : : */
1625 : : int
1626 : 370 : raid_bdev_create(const char *name, uint32_t strip_size, uint8_t num_base_bdevs,
1627 : : enum raid_level level, bool superblock_enabled, const struct spdk_uuid *uuid,
1628 : : struct raid_bdev **raid_bdev_out)
1629 : : {
1630 : 321 : struct raid_bdev *raid_bdev;
1631 : : int rc;
1632 : :
1633 [ - + # # ]: 370 : assert(uuid != NULL);
1634 : :
1635 [ # # ]: 370 : rc = _raid_bdev_create(name, strip_size, num_base_bdevs, level, superblock_enabled, uuid,
1636 : : &raid_bdev);
1637 [ + + ]: 370 : if (rc != 0) {
1638 : 9 : return rc;
1639 : : }
1640 : :
1641 [ + + + - : 361 : if (superblock_enabled && spdk_uuid_is_null(uuid)) {
# # ]
1642 : : /* we need to have the uuid to store in the superblock before the bdev is registered */
1643 [ # # # # ]: 97 : spdk_uuid_generate(&raid_bdev->bdev.uuid);
1644 : 0 : }
1645 : :
1646 [ # # # # ]: 361 : raid_bdev->num_base_bdevs_operational = num_base_bdevs;
1647 : :
1648 [ # # ]: 361 : *raid_bdev_out = raid_bdev;
1649 : :
1650 : 361 : return 0;
1651 : 0 : }
1652 : :
1653 : : static void
1654 : 287 : _raid_bdev_unregistering_cont(void *ctx)
1655 : : {
1656 : 287 : struct raid_bdev *raid_bdev = ctx;
1657 : :
1658 [ # # # # ]: 287 : spdk_bdev_close(raid_bdev->self_desc);
1659 [ # # # # ]: 287 : raid_bdev->self_desc = NULL;
1660 : 287 : }
1661 : :
1662 : : static void
1663 : 287 : raid_bdev_unregistering_cont(void *ctx)
1664 : : {
1665 : 287 : spdk_thread_exec_msg(spdk_thread_get_app_thread(), _raid_bdev_unregistering_cont, ctx);
1666 : 287 : }
1667 : :
1668 : : static int
1669 : 34 : raid_bdev_process_add_finish_action(struct raid_bdev_process *process, spdk_msg_fn cb, void *cb_ctx)
1670 : : {
1671 : : struct raid_process_finish_action *finish_action;
1672 : :
1673 [ - + # # : 34 : assert(spdk_get_thread() == process->thread);
# # # # ]
1674 [ - + # # : 34 : assert(process->state < RAID_PROCESS_STATE_STOPPED);
# # # # ]
1675 : :
1676 : 34 : finish_action = calloc(1, sizeof(*finish_action));
1677 [ - + ]: 34 : if (finish_action == NULL) {
1678 : 0 : return -ENOMEM;
1679 : : }
1680 : :
1681 [ # # # # ]: 34 : finish_action->cb = cb;
1682 [ # # # # ]: 34 : finish_action->cb_ctx = cb_ctx;
1683 : :
1684 [ # # # # : 34 : TAILQ_INSERT_TAIL(&process->finish_actions, finish_action, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
1685 : :
1686 : 34 : return 0;
1687 : 0 : }
1688 : :
1689 : : static void
1690 : 1 : raid_bdev_unregistering_stop_process(void *ctx)
1691 : : {
1692 : 1 : struct raid_bdev_process *process = ctx;
1693 [ # # # # ]: 1 : struct raid_bdev *raid_bdev = process->raid_bdev;
1694 : : int rc;
1695 : :
1696 [ # # # # ]: 1 : process->state = RAID_PROCESS_STATE_STOPPING;
1697 [ + - # # : 1 : if (process->status == 0) {
# # ]
1698 [ # # # # ]: 1 : process->status = -ECANCELED;
1699 : 0 : }
1700 : :
1701 : 1 : rc = raid_bdev_process_add_finish_action(process, raid_bdev_unregistering_cont, raid_bdev);
1702 [ - + ]: 1 : if (rc != 0) {
1703 [ # # # # : 0 : SPDK_ERRLOG("Failed to add raid bdev '%s' process finish action: %s\n",
# # # # ]
1704 : : raid_bdev->bdev.name, spdk_strerror(-rc));
1705 : 0 : }
1706 : 1 : }
1707 : :
1708 : : static void
1709 : 291 : raid_bdev_event_cb(enum spdk_bdev_event_type type, struct spdk_bdev *bdev, void *event_ctx)
1710 : : {
1711 : 291 : struct raid_bdev *raid_bdev = event_ctx;
1712 : :
1713 [ + + ]: 291 : if (type == SPDK_BDEV_EVENT_REMOVE) {
1714 [ + + # # : 287 : if (raid_bdev->process != NULL) {
# # ]
1715 [ # # # # : 1 : spdk_thread_send_msg(raid_bdev->process->thread, raid_bdev_unregistering_stop_process,
# # # # ]
1716 [ # # # # ]: 1 : raid_bdev->process);
1717 : 0 : } else {
1718 : 286 : raid_bdev_unregistering_cont(raid_bdev);
1719 : : }
1720 : 0 : }
1721 : 291 : }
1722 : :
1723 : : static void
1724 : 329 : raid_bdev_configure_cont(struct raid_bdev *raid_bdev)
1725 : : {
1726 [ # # ]: 329 : struct spdk_bdev *raid_bdev_gen = &raid_bdev->bdev;
1727 : : int rc;
1728 : :
1729 [ # # # # ]: 329 : raid_bdev->state = RAID_BDEV_STATE_ONLINE;
1730 [ - + + + : 329 : SPDK_DEBUGLOG(bdev_raid, "io device register %p\n", raid_bdev);
# # ]
1731 [ - + + + : 329 : SPDK_DEBUGLOG(bdev_raid, "blockcnt %" PRIu64 ", blocklen %u\n",
# # # # #
# # # #
# ]
1732 : : raid_bdev_gen->blockcnt, raid_bdev_gen->blocklen);
1733 : 329 : spdk_io_device_register(raid_bdev, raid_bdev_create_cb, raid_bdev_destroy_cb,
1734 : : sizeof(struct raid_bdev_io_channel),
1735 [ # # # # ]: 329 : raid_bdev_gen->name);
1736 : 329 : rc = spdk_bdev_register(raid_bdev_gen);
1737 [ - + ]: 329 : if (rc != 0) {
1738 [ # # # # : 0 : SPDK_ERRLOG("Failed to register raid bdev '%s': %s\n",
# # ]
1739 : : raid_bdev_gen->name, spdk_strerror(-rc));
1740 : 0 : goto out;
1741 : : }
1742 : :
1743 : : /*
1744 : : * Open the bdev internally to delay unregistering if we need to stop a background process
1745 : : * first. The process may still need to unquiesce a range but it will fail because the
1746 : : * bdev's internal.spinlock is destroyed by the time the destruct callback is reached.
1747 : : * During application shutdown, bdevs automatically get unregistered by the bdev layer
1748 : : * so this is the only way currently to do this correctly.
1749 : : * TODO: try to handle this correctly in bdev layer instead.
1750 : : */
1751 [ # # # # ]: 329 : rc = spdk_bdev_open_ext(raid_bdev_gen->name, false, raid_bdev_event_cb, raid_bdev,
1752 [ # # ]: 0 : &raid_bdev->self_desc);
1753 [ - + ]: 329 : if (rc != 0) {
1754 [ # # # # : 0 : SPDK_ERRLOG("Failed to open raid bdev '%s': %s\n",
# # ]
1755 : : raid_bdev_gen->name, spdk_strerror(-rc));
1756 : 0 : spdk_bdev_unregister(raid_bdev_gen, NULL, NULL);
1757 : 0 : goto out;
1758 : : }
1759 : :
1760 [ - + + + : 329 : SPDK_DEBUGLOG(bdev_raid, "raid bdev generic %p\n", raid_bdev_gen);
# # ]
1761 [ + + + + : 329 : SPDK_DEBUGLOG(bdev_raid, "raid bdev is created with name %s, raid_bdev %p\n",
# # # # #
# ]
1762 : : raid_bdev_gen->name, raid_bdev);
1763 : 193 : out:
1764 [ - + ]: 329 : if (rc != 0) {
1765 [ # # # # : 0 : if (raid_bdev->module->stop != NULL) {
# # # # #
# ]
1766 [ # # # # : 0 : raid_bdev->module->stop(raid_bdev);
# # # # #
# # # ]
1767 : 0 : }
1768 : 0 : spdk_io_device_unregister(raid_bdev, NULL);
1769 [ # # # # ]: 0 : raid_bdev->state = RAID_BDEV_STATE_CONFIGURING;
1770 : 0 : }
1771 : :
1772 [ + + # # : 329 : if (raid_bdev->configure_cb != NULL) {
# # ]
1773 [ # # # # : 288 : raid_bdev->configure_cb(raid_bdev->configure_cb_ctx, rc);
# # # # #
# # # ]
1774 [ # # # # ]: 288 : raid_bdev->configure_cb = NULL;
1775 : 0 : }
1776 : 329 : }
1777 : :
1778 : : static void
1779 : 110 : raid_bdev_configure_write_sb_cb(int status, struct raid_bdev *raid_bdev, void *ctx)
1780 : : {
1781 [ + - ]: 110 : if (status == 0) {
1782 : 110 : raid_bdev_configure_cont(raid_bdev);
1783 : 0 : } else {
1784 [ # # # # : 0 : SPDK_ERRLOG("Failed to write raid bdev '%s' superblock: %s\n",
# # # # ]
1785 : : raid_bdev->bdev.name, spdk_strerror(-status));
1786 [ # # # # : 0 : if (raid_bdev->module->stop != NULL) {
# # # # #
# ]
1787 [ # # # # : 0 : raid_bdev->module->stop(raid_bdev);
# # # # #
# # # ]
1788 : 0 : }
1789 [ # # # # : 0 : if (raid_bdev->configure_cb != NULL) {
# # ]
1790 [ # # # # : 0 : raid_bdev->configure_cb(raid_bdev->configure_cb_ctx, status);
# # # # #
# # # ]
1791 [ # # # # ]: 0 : raid_bdev->configure_cb = NULL;
1792 : 0 : }
1793 : : }
1794 : 110 : }
1795 : :
1796 : : /*
1797 : : * brief:
1798 : : * If raid bdev config is complete, then only register the raid bdev to
1799 : : * bdev layer and remove this raid bdev from configuring list and
1800 : : * insert the raid bdev to configured list
1801 : : * params:
1802 : : * raid_bdev - pointer to raid bdev
1803 : : * returns:
1804 : : * 0 - success
1805 : : * non zero - failure
1806 : : */
1807 : : static int
1808 : 329 : raid_bdev_configure(struct raid_bdev *raid_bdev, raid_bdev_configure_cb cb, void *cb_ctx)
1809 : : {
1810 [ # # ]: 329 : uint32_t data_block_size = spdk_bdev_get_data_block_size(&raid_bdev->bdev);
1811 : : int rc;
1812 : :
1813 [ - + # # : 329 : assert(raid_bdev->state == RAID_BDEV_STATE_CONFIGURING);
# # # # ]
1814 [ - + # # : 329 : assert(raid_bdev->num_base_bdevs_discovered == raid_bdev->num_base_bdevs_operational);
# # # # #
# # # ]
1815 [ - + # # : 329 : assert(raid_bdev->bdev.blocklen > 0);
# # # # #
# ]
1816 : :
1817 : : /* The strip_size_kb is read in from user in KB. Convert to blocks here for
1818 : : * internal use.
1819 : : */
1820 [ - + # # : 329 : raid_bdev->strip_size = (raid_bdev->strip_size_kb * 1024) / data_block_size;
# # # # #
# ]
1821 [ + + - + : 329 : if (raid_bdev->strip_size == 0 && raid_bdev->level != RAID1) {
# # # # #
# # # ]
1822 : 0 : SPDK_ERRLOG("Strip size cannot be smaller than the device block size\n");
1823 : 0 : return -EINVAL;
1824 : : }
1825 [ # # # # : 329 : raid_bdev->strip_size_shift = spdk_u32log2(raid_bdev->strip_size);
# # # # ]
1826 : :
1827 [ # # # # : 329 : rc = raid_bdev->module->start(raid_bdev);
# # # # #
# # # ]
1828 [ - + ]: 329 : if (rc != 0) {
1829 : 0 : SPDK_ERRLOG("raid module startup callback failed\n");
1830 : 0 : return rc;
1831 : : }
1832 : :
1833 [ - + # # : 329 : assert(raid_bdev->configure_cb == NULL);
# # # # ]
1834 [ # # # # ]: 329 : raid_bdev->configure_cb = cb;
1835 [ # # # # ]: 329 : raid_bdev->configure_cb_ctx = cb_ctx;
1836 : :
1837 [ + + + + : 329 : if (raid_bdev->superblock_enabled) {
# # # # ]
1838 [ + + # # : 110 : if (raid_bdev->sb == NULL) {
# # ]
1839 : 69 : rc = raid_bdev_alloc_superblock(raid_bdev, data_block_size);
1840 [ + - ]: 69 : if (rc == 0) {
1841 : 69 : raid_bdev_init_superblock(raid_bdev);
1842 : 0 : }
1843 : 0 : } else {
1844 [ - + # # : 41 : assert(spdk_uuid_compare(&raid_bdev->sb->uuid, &raid_bdev->bdev.uuid) == 0);
# # # # #
# # # #
# ]
1845 [ - + # # : 41 : if (raid_bdev->sb->block_size != data_block_size) {
# # # # #
# ]
1846 : 0 : SPDK_ERRLOG("blocklen does not match value in superblock\n");
1847 : 0 : rc = -EINVAL;
1848 : 0 : }
1849 [ - + # # : 41 : if (raid_bdev->sb->raid_size != raid_bdev->bdev.blockcnt) {
# # # # #
# # # # #
# # ]
1850 : 0 : SPDK_ERRLOG("blockcnt does not match value in superblock\n");
1851 : 0 : rc = -EINVAL;
1852 : 0 : }
1853 : : }
1854 : :
1855 [ - + ]: 110 : if (rc != 0) {
1856 [ # # # # ]: 0 : raid_bdev->configure_cb = NULL;
1857 [ # # # # : 0 : if (raid_bdev->module->stop != NULL) {
# # # # #
# ]
1858 [ # # # # : 0 : raid_bdev->module->stop(raid_bdev);
# # # # #
# # # ]
1859 : 0 : }
1860 : 0 : return rc;
1861 : : }
1862 : :
1863 : 110 : raid_bdev_write_superblock(raid_bdev, raid_bdev_configure_write_sb_cb, NULL);
1864 : 0 : } else {
1865 : 219 : raid_bdev_configure_cont(raid_bdev);
1866 : : }
1867 : :
1868 : 329 : return 0;
1869 : 0 : }
1870 : :
1871 : : /*
1872 : : * brief:
1873 : : * If raid bdev is online and registered, change the bdev state to
1874 : : * configuring and unregister this raid device. Queue this raid device
1875 : : * in configuring list
1876 : : * params:
1877 : : * raid_bdev - pointer to raid bdev
1878 : : * cb_fn - callback function
1879 : : * cb_arg - argument to callback function
1880 : : * returns:
1881 : : * none
1882 : : */
1883 : : static void
1884 : 165 : raid_bdev_deconfigure(struct raid_bdev *raid_bdev, raid_bdev_destruct_cb cb_fn,
1885 : : void *cb_arg)
1886 : : {
1887 [ - + # # : 165 : if (raid_bdev->state != RAID_BDEV_STATE_ONLINE) {
# # ]
1888 [ # # ]: 0 : if (cb_fn) {
1889 [ # # # # ]: 0 : cb_fn(cb_arg, 0);
1890 : 0 : }
1891 : 0 : return;
1892 : : }
1893 : :
1894 [ # # # # ]: 165 : raid_bdev->state = RAID_BDEV_STATE_OFFLINE;
1895 [ - + + + : 165 : SPDK_DEBUGLOG(bdev_raid, "raid bdev state changing from online to offline\n");
# # ]
1896 : :
1897 [ # # ]: 165 : spdk_bdev_unregister(&raid_bdev->bdev, cb_fn, cb_arg);
1898 : 0 : }
1899 : :
1900 : : /*
1901 : : * brief:
1902 : : * raid_bdev_find_base_info_by_bdev function finds the base bdev info by bdev.
1903 : : * params:
1904 : : * base_bdev - pointer to base bdev
1905 : : * returns:
1906 : : * base bdev info if found, otherwise NULL.
1907 : : */
1908 : : static struct raid_base_bdev_info *
1909 : 5696 : raid_bdev_find_base_info_by_bdev(struct spdk_bdev *base_bdev)
1910 : : {
1911 : : struct raid_bdev *raid_bdev;
1912 : : struct raid_base_bdev_info *base_info;
1913 : :
1914 [ + + # # : 6673 : TAILQ_FOREACH(raid_bdev, &g_raid_bdev_list, global_link) {
# # # # ]
1915 [ + + # # : 3644 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
1916 [ + + + + : 4893 : if (base_info->desc != NULL &&
# # # # ]
1917 [ # # # # ]: 2226 : spdk_bdev_desc_get_bdev(base_info->desc) == base_bdev) {
1918 : 212 : return base_info;
1919 : : }
1920 : 0 : }
1921 : 0 : }
1922 : :
1923 : 5484 : return NULL;
1924 : 47 : }
1925 : :
1926 : : static void
1927 : 108 : raid_bdev_remove_base_bdev_done(struct raid_base_bdev_info *base_info, int status)
1928 : : {
1929 [ # # # # ]: 108 : struct raid_bdev *raid_bdev = base_info->raid_bdev;
1930 : :
1931 [ - + - + : 108 : assert(base_info->remove_scheduled);
# # # # #
# ]
1932 [ # # # # ]: 108 : base_info->remove_scheduled = false;
1933 : :
1934 [ + - ]: 108 : if (status == 0) {
1935 [ # # ]: 108 : raid_bdev->num_base_bdevs_operational--;
1936 [ + + # # : 108 : if (raid_bdev->num_base_bdevs_operational < raid_bdev->min_base_bdevs_operational) {
# # # # #
# ]
1937 : : /* There is not enough base bdevs to keep the raid bdev operational. */
1938 [ # # # # : 14 : raid_bdev_deconfigure(raid_bdev, base_info->remove_cb, base_info->remove_cb_ctx);
# # # # ]
1939 : 14 : return;
1940 : : }
1941 : 0 : }
1942 : :
1943 [ + + # # : 94 : if (base_info->remove_cb != NULL) {
# # ]
1944 [ # # # # : 47 : base_info->remove_cb(base_info->remove_cb_ctx, status);
# # # # #
# # # ]
1945 : 0 : }
1946 : 0 : }
1947 : :
1948 : : static void
1949 : 108 : raid_bdev_remove_base_bdev_on_unquiesced(void *ctx, int status)
1950 : : {
1951 : 108 : struct raid_base_bdev_info *base_info = ctx;
1952 [ # # # # ]: 108 : struct raid_bdev *raid_bdev = base_info->raid_bdev;
1953 : :
1954 [ - + ]: 108 : if (status != 0) {
1955 [ # # # # : 0 : SPDK_ERRLOG("Failed to unquiesce raid bdev %s: %s\n",
# # # # ]
1956 : : raid_bdev->bdev.name, spdk_strerror(-status));
1957 : 0 : }
1958 : :
1959 : 108 : raid_bdev_remove_base_bdev_done(base_info, status);
1960 : 108 : }
1961 : :
1962 : : static void
1963 : 13 : raid_bdev_channel_remove_base_bdev(struct spdk_io_channel_iter *i)
1964 : : {
1965 : 13 : struct raid_base_bdev_info *base_info = spdk_io_channel_iter_get_ctx(i);
1966 : 13 : struct spdk_io_channel *ch = spdk_io_channel_iter_get_channel(i);
1967 : 13 : struct raid_bdev_io_channel *raid_ch = spdk_io_channel_get_ctx(ch);
1968 : 13 : uint8_t idx = raid_bdev_base_bdev_slot(base_info);
1969 : :
1970 [ - + + - : 13 : SPDK_DEBUGLOG(bdev_raid, "slot: %u raid_ch: %p\n", idx, raid_ch);
# # ]
1971 : :
1972 [ + + # # : 13 : if (raid_ch->base_channel[idx] != NULL) {
# # # # #
# ]
1973 [ # # # # : 9 : spdk_put_io_channel(raid_ch->base_channel[idx]);
# # # # ]
1974 [ # # # # : 9 : raid_ch->base_channel[idx] = NULL;
# # # # ]
1975 : 0 : }
1976 : :
1977 [ + + # # : 13 : if (raid_ch->process.ch_processed != NULL) {
# # # # ]
1978 [ # # # # : 6 : raid_ch->process.ch_processed->base_channel[idx] = NULL;
# # # # #
# # # #
# ]
1979 : 0 : }
1980 : :
1981 : 13 : spdk_for_each_channel_continue(i, 0);
1982 : 13 : }
1983 : :
1984 : : static void
1985 : 108 : raid_bdev_channels_remove_base_bdev_done(struct spdk_io_channel_iter *i, int status)
1986 : : {
1987 : 108 : struct raid_base_bdev_info *base_info = spdk_io_channel_iter_get_ctx(i);
1988 [ # # # # ]: 108 : struct raid_bdev *raid_bdev = base_info->raid_bdev;
1989 : :
1990 : 108 : raid_bdev_free_base_bdev_resource(base_info);
1991 : :
1992 [ # # ]: 108 : spdk_bdev_unquiesce(&raid_bdev->bdev, &g_raid_if, raid_bdev_remove_base_bdev_on_unquiesced,
1993 : 0 : base_info);
1994 : 108 : }
1995 : :
1996 : : static void
1997 : 108 : raid_bdev_remove_base_bdev_cont(struct raid_base_bdev_info *base_info)
1998 : : {
1999 : 108 : raid_bdev_deconfigure_base_bdev(base_info);
2000 : :
2001 [ # # # # ]: 108 : spdk_for_each_channel(base_info->raid_bdev, raid_bdev_channel_remove_base_bdev, base_info,
2002 : : raid_bdev_channels_remove_base_bdev_done);
2003 : 108 : }
2004 : :
2005 : : static void
2006 : 53 : raid_bdev_remove_base_bdev_write_sb_cb(int status, struct raid_bdev *raid_bdev, void *ctx)
2007 : : {
2008 : 53 : struct raid_base_bdev_info *base_info = ctx;
2009 : :
2010 [ - + ]: 53 : if (status != 0) {
2011 [ # # # # : 0 : SPDK_ERRLOG("Failed to write raid bdev '%s' superblock: %s\n",
# # # # ]
2012 : : raid_bdev->bdev.name, spdk_strerror(-status));
2013 : 0 : raid_bdev_remove_base_bdev_done(base_info, status);
2014 : 0 : return;
2015 : : }
2016 : :
2017 : 53 : raid_bdev_remove_base_bdev_cont(base_info);
2018 : 0 : }
2019 : :
2020 : : static void
2021 : 108 : raid_bdev_remove_base_bdev_on_quiesced(void *ctx, int status)
2022 : : {
2023 : 108 : struct raid_base_bdev_info *base_info = ctx;
2024 [ # # # # ]: 108 : struct raid_bdev *raid_bdev = base_info->raid_bdev;
2025 : :
2026 [ - + ]: 108 : if (status != 0) {
2027 [ # # # # : 0 : SPDK_ERRLOG("Failed to quiesce raid bdev %s: %s\n",
# # # # ]
2028 : : raid_bdev->bdev.name, spdk_strerror(-status));
2029 : 0 : raid_bdev_remove_base_bdev_done(base_info, status);
2030 : 0 : return;
2031 : : }
2032 : :
2033 [ + + # # : 108 : if (raid_bdev->sb) {
# # ]
2034 [ # # # # ]: 81 : struct raid_bdev_superblock *sb = raid_bdev->sb;
2035 : 81 : uint8_t slot = raid_bdev_base_bdev_slot(base_info);
2036 : : uint8_t i;
2037 : :
2038 [ + + # # : 179 : for (i = 0; i < sb->base_bdevs_size; i++) {
# # ]
2039 [ # # # # ]: 151 : struct raid_bdev_sb_base_bdev *sb_base_bdev = &sb->base_bdevs[i];
2040 : :
2041 [ + + # # : 151 : if (sb_base_bdev->state == RAID_SB_BASE_BDEV_CONFIGURED &&
# # # # ]
2042 [ + + # # ]: 101 : sb_base_bdev->slot == slot) {
2043 [ - + + + : 53 : if (base_info->is_failed) {
# # # # ]
2044 [ # # # # ]: 3 : sb_base_bdev->state = RAID_SB_BASE_BDEV_FAILED;
2045 : 0 : } else {
2046 [ # # # # ]: 50 : sb_base_bdev->state = RAID_SB_BASE_BDEV_MISSING;
2047 : : }
2048 : :
2049 : 53 : raid_bdev_write_superblock(raid_bdev, raid_bdev_remove_base_bdev_write_sb_cb, base_info);
2050 : 53 : return;
2051 : : }
2052 : 0 : }
2053 : 0 : }
2054 : :
2055 : 55 : raid_bdev_remove_base_bdev_cont(base_info);
2056 : 0 : }
2057 : :
2058 : : static int
2059 : 108 : raid_bdev_remove_base_bdev_quiesce(struct raid_base_bdev_info *base_info)
2060 : : {
2061 [ - + # # ]: 108 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
2062 : :
2063 [ # # # # : 108 : return spdk_bdev_quiesce(&base_info->raid_bdev->bdev, &g_raid_if,
# # ]
2064 : 0 : raid_bdev_remove_base_bdev_on_quiesced, base_info);
2065 : : }
2066 : :
2067 : : struct raid_bdev_process_base_bdev_remove_ctx {
2068 : : struct raid_bdev_process *process;
2069 : : struct raid_base_bdev_info *base_info;
2070 : : uint8_t num_base_bdevs_operational;
2071 : : };
2072 : :
2073 : : static void
2074 : 37 : _raid_bdev_process_base_bdev_remove_cont(void *ctx)
2075 : : {
2076 : 37 : struct raid_base_bdev_info *base_info = ctx;
2077 : : int ret;
2078 : :
2079 : 37 : ret = raid_bdev_remove_base_bdev_quiesce(base_info);
2080 [ - + ]: 37 : if (ret != 0) {
2081 : 0 : raid_bdev_remove_base_bdev_done(base_info, ret);
2082 : 0 : }
2083 : 37 : }
2084 : :
2085 : : static void
2086 : 37 : raid_bdev_process_base_bdev_remove_cont(void *_ctx)
2087 : : {
2088 : 37 : struct raid_bdev_process_base_bdev_remove_ctx *ctx = _ctx;
2089 [ # # # # ]: 37 : struct raid_base_bdev_info *base_info = ctx->base_info;
2090 : :
2091 : 37 : free(ctx);
2092 : :
2093 : 37 : spdk_thread_send_msg(spdk_thread_get_app_thread(), _raid_bdev_process_base_bdev_remove_cont,
2094 : 0 : base_info);
2095 : 37 : }
2096 : :
2097 : : static void
2098 : 37 : _raid_bdev_process_base_bdev_remove(void *_ctx)
2099 : : {
2100 : 37 : struct raid_bdev_process_base_bdev_remove_ctx *ctx = _ctx;
2101 [ # # # # ]: 37 : struct raid_bdev_process *process = ctx->process;
2102 : : int ret;
2103 : :
2104 [ + + # # : 37 : if (ctx->base_info != process->target &&
# # # # #
# # # ]
2105 [ + - # # : 4 : ctx->num_base_bdevs_operational > process->raid_bdev->min_base_bdevs_operational) {
# # # # #
# # # ]
2106 : : /* process doesn't need to be stopped */
2107 : 4 : raid_bdev_process_base_bdev_remove_cont(ctx);
2108 : 4 : return;
2109 : : }
2110 : :
2111 [ + - + - : 33 : assert(process->state > RAID_PROCESS_STATE_INIT &&
# # # # #
# # # ]
2112 : : process->state < RAID_PROCESS_STATE_STOPPED);
2113 : :
2114 : 33 : ret = raid_bdev_process_add_finish_action(process, raid_bdev_process_base_bdev_remove_cont, ctx);
2115 [ - + ]: 33 : if (ret != 0) {
2116 [ # # # # ]: 0 : raid_bdev_remove_base_bdev_done(ctx->base_info, ret);
2117 : 0 : free(ctx);
2118 : 0 : return;
2119 : : }
2120 : :
2121 [ # # # # ]: 33 : process->state = RAID_PROCESS_STATE_STOPPING;
2122 : :
2123 [ + - # # : 33 : if (process->status == 0) {
# # ]
2124 [ # # # # ]: 33 : process->status = -ENODEV;
2125 : 0 : }
2126 : 0 : }
2127 : :
2128 : : static int
2129 : 37 : raid_bdev_process_base_bdev_remove(struct raid_bdev_process *process,
2130 : : struct raid_base_bdev_info *base_info)
2131 : : {
2132 : : struct raid_bdev_process_base_bdev_remove_ctx *ctx;
2133 : :
2134 [ - + # # ]: 37 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
2135 : :
2136 : 37 : ctx = calloc(1, sizeof(*ctx));
2137 [ - + ]: 37 : if (ctx == NULL) {
2138 : 0 : return -ENOMEM;
2139 : : }
2140 : :
2141 : : /*
2142 : : * We have to send the process and num_base_bdevs_operational in the message ctx
2143 : : * because the process thread should not access raid_bdev's properties. Particularly,
2144 : : * raid_bdev->process may be cleared by the time the message is handled, but ctx->process
2145 : : * will still be valid until the process is fully stopped.
2146 : : */
2147 [ # # # # ]: 37 : ctx->base_info = base_info;
2148 [ # # # # ]: 37 : ctx->process = process;
2149 : : /*
2150 : : * raid_bdev->num_base_bdevs_operational can't be used here because it is decremented
2151 : : * after the removal and more than one base bdev may be removed at the same time
2152 : : */
2153 [ + + # # : 147 : RAID_FOR_EACH_BASE_BDEV(process->raid_bdev, base_info) {
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# ]
2154 [ - + + + : 110 : if (base_info->is_configured && !base_info->remove_scheduled) {
- + + + #
# # # # #
# # ]
2155 [ # # ]: 69 : ctx->num_base_bdevs_operational++;
2156 : 0 : }
2157 : 0 : }
2158 : :
2159 [ # # # # ]: 37 : spdk_thread_send_msg(process->thread, _raid_bdev_process_base_bdev_remove, ctx);
2160 : :
2161 : 37 : return 0;
2162 : 0 : }
2163 : :
2164 : : static int
2165 : 241 : _raid_bdev_remove_base_bdev(struct raid_base_bdev_info *base_info,
2166 : : raid_base_bdev_cb cb_fn, void *cb_ctx)
2167 : : {
2168 [ # # # # ]: 241 : struct raid_bdev *raid_bdev = base_info->raid_bdev;
2169 : 241 : int ret = 0;
2170 : :
2171 [ - + + - : 241 : SPDK_DEBUGLOG(bdev_raid, "%s\n", base_info->name);
# # # # #
# ]
2172 : :
2173 [ - + # # ]: 241 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
2174 : :
2175 [ - + + + : 241 : if (base_info->remove_scheduled || !base_info->is_configured) {
- + - + #
# # # # #
# # ]
2176 : 33 : return -ENODEV;
2177 : : }
2178 : :
2179 [ - + # # : 208 : assert(base_info->desc);
# # # # ]
2180 [ # # # # ]: 208 : base_info->remove_scheduled = true;
2181 : :
2182 [ + + # # : 208 : if (raid_bdev->state != RAID_BDEV_STATE_ONLINE) {
# # ]
2183 : : /*
2184 : : * As raid bdev is not registered yet or already unregistered,
2185 : : * so cleanup should be done here itself.
2186 : : *
2187 : : * Removing a base bdev at this stage does not change the number of operational
2188 : : * base bdevs, only the number of discovered base bdevs.
2189 : : */
2190 : 87 : raid_bdev_free_base_bdev_resource(base_info);
2191 [ # # # # ]: 87 : base_info->remove_scheduled = false;
2192 [ + + # # : 87 : if (raid_bdev->num_base_bdevs_discovered == 0 &&
# # # # ]
2193 [ + - # # ]: 16 : raid_bdev->state == RAID_BDEV_STATE_OFFLINE) {
2194 : : /* There is no base bdev for this raid, so free the raid device. */
2195 : 16 : raid_bdev_cleanup_and_free(raid_bdev);
2196 : 0 : }
2197 [ + + ]: 87 : if (cb_fn != NULL) {
2198 [ # # # # ]: 32 : cb_fn(cb_ctx, 0);
2199 : 0 : }
2200 [ + + # # : 121 : } else if (raid_bdev->min_base_bdevs_operational == raid_bdev->num_base_bdevs) {
# # # # #
# ]
2201 : : /* This raid bdev does not tolerate removing a base bdev. */
2202 [ # # ]: 13 : raid_bdev->num_base_bdevs_operational--;
2203 : 13 : raid_bdev_deconfigure(raid_bdev, cb_fn, cb_ctx);
2204 : 0 : } else {
2205 [ # # # # ]: 108 : base_info->remove_cb = cb_fn;
2206 [ # # # # ]: 108 : base_info->remove_cb_ctx = cb_ctx;
2207 : :
2208 [ + + # # : 108 : if (raid_bdev->process != NULL) {
# # ]
2209 [ # # # # ]: 37 : ret = raid_bdev_process_base_bdev_remove(raid_bdev->process, base_info);
2210 : 0 : } else {
2211 : 71 : ret = raid_bdev_remove_base_bdev_quiesce(base_info);
2212 : : }
2213 : :
2214 [ - + ]: 108 : if (ret != 0) {
2215 [ # # # # ]: 0 : base_info->remove_scheduled = false;
2216 : 0 : }
2217 : : }
2218 : :
2219 : 208 : return ret;
2220 : 0 : }
2221 : :
2222 : : /*
2223 : : * brief:
2224 : : * raid_bdev_remove_base_bdev function is called by below layers when base_bdev
2225 : : * is removed. This function checks if this base bdev is part of any raid bdev
2226 : : * or not. If yes, it takes necessary action on that particular raid bdev.
2227 : : * params:
2228 : : * base_bdev - pointer to base bdev which got removed
2229 : : * cb_fn - callback function
2230 : : * cb_arg - argument to callback function
2231 : : * returns:
2232 : : * 0 - success
2233 : : * non zero - failure
2234 : : */
2235 : : int
2236 : 204 : raid_bdev_remove_base_bdev(struct spdk_bdev *base_bdev, raid_base_bdev_cb cb_fn, void *cb_ctx)
2237 : : {
2238 : : struct raid_base_bdev_info *base_info;
2239 : :
2240 : : /* Find the raid_bdev which has claimed this base_bdev */
2241 : 204 : base_info = raid_bdev_find_base_info_by_bdev(base_bdev);
2242 [ - + ]: 204 : if (!base_info) {
2243 [ # # # # ]: 0 : SPDK_ERRLOG("bdev to remove '%s' not found\n", base_bdev->name);
2244 : 0 : return -ENODEV;
2245 : : }
2246 : :
2247 : 204 : return _raid_bdev_remove_base_bdev(base_info, cb_fn, cb_ctx);
2248 : 0 : }
2249 : :
2250 : : static void
2251 : 3 : raid_bdev_fail_base_remove_cb(void *ctx, int status)
2252 : : {
2253 : 3 : struct raid_base_bdev_info *base_info = ctx;
2254 : :
2255 [ - + ]: 3 : if (status != 0) {
2256 [ # # # # ]: 0 : SPDK_WARNLOG("Failed to remove base bdev %s\n", base_info->name);
2257 [ # # # # ]: 0 : base_info->is_failed = false;
2258 : 0 : }
2259 : 3 : }
2260 : :
2261 : : static void
2262 : 3 : _raid_bdev_fail_base_bdev(void *ctx)
2263 : : {
2264 : 3 : struct raid_base_bdev_info *base_info = ctx;
2265 : : int rc;
2266 : :
2267 [ - + - + : 3 : if (base_info->is_failed) {
# # # # ]
2268 : 0 : return;
2269 : : }
2270 [ # # # # ]: 3 : base_info->is_failed = true;
2271 : :
2272 [ # # # # : 3 : SPDK_NOTICELOG("Failing base bdev in slot %d ('%s') of raid bdev '%s'\n",
# # # # #
# # # #
# ]
2273 : : raid_bdev_base_bdev_slot(base_info), base_info->name, base_info->raid_bdev->bdev.name);
2274 : :
2275 : 3 : rc = _raid_bdev_remove_base_bdev(base_info, raid_bdev_fail_base_remove_cb, base_info);
2276 [ - + ]: 3 : if (rc != 0) {
2277 : 0 : raid_bdev_fail_base_remove_cb(base_info, rc);
2278 : 0 : }
2279 : 0 : }
2280 : :
2281 : : void
2282 : 3 : raid_bdev_fail_base_bdev(struct raid_base_bdev_info *base_info)
2283 : : {
2284 : 3 : spdk_thread_exec_msg(spdk_thread_get_app_thread(), _raid_bdev_fail_base_bdev, base_info);
2285 : 3 : }
2286 : :
2287 : : static void
2288 : 2 : raid_bdev_resize_write_sb_cb(int status, struct raid_bdev *raid_bdev, void *ctx)
2289 : : {
2290 [ - + ]: 2 : if (status != 0) {
2291 [ # # # # : 0 : SPDK_ERRLOG("Failed to write raid bdev '%s' superblock after resizing the bdev: %s\n",
# # # # ]
2292 : : raid_bdev->bdev.name, spdk_strerror(-status));
2293 : 0 : }
2294 : 2 : }
2295 : :
2296 : : /*
2297 : : * brief:
2298 : : * raid_bdev_resize_base_bdev function is called by below layers when base_bdev
2299 : : * is resized. This function checks if the smallest size of the base_bdevs is changed.
2300 : : * If yes, call module handler to resize the raid_bdev if implemented.
2301 : : * params:
2302 : : * base_bdev - pointer to base bdev which got resized.
2303 : : * returns:
2304 : : * none
2305 : : */
2306 : : static void
2307 : 8 : raid_bdev_resize_base_bdev(struct spdk_bdev *base_bdev)
2308 : : {
2309 : : struct raid_bdev *raid_bdev;
2310 : : struct raid_base_bdev_info *base_info;
2311 : : uint64_t blockcnt_old;
2312 : :
2313 [ - + + - : 8 : SPDK_DEBUGLOG(bdev_raid, "raid_bdev_resize_base_bdev\n");
# # ]
2314 : :
2315 : 8 : base_info = raid_bdev_find_base_info_by_bdev(base_bdev);
2316 : :
2317 : : /* Find the raid_bdev which has claimed this base_bdev */
2318 [ - + ]: 8 : if (!base_info) {
2319 [ # # # # ]: 0 : SPDK_ERRLOG("raid_bdev whose base_bdev '%s' not found\n", base_bdev->name);
2320 : 0 : return;
2321 : : }
2322 [ # # # # ]: 8 : raid_bdev = base_info->raid_bdev;
2323 : :
2324 [ - + # # ]: 8 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
2325 : :
2326 [ # # # # : 8 : SPDK_NOTICELOG("base_bdev '%s' was resized: old size %" PRIu64 ", new size %" PRIu64 "\n",
# # # # #
# # # ]
2327 : : base_bdev->name, base_info->blockcnt, base_bdev->blockcnt);
2328 : :
2329 [ # # # # : 8 : base_info->blockcnt = base_bdev->blockcnt;
# # # # ]
2330 : :
2331 [ - + # # : 8 : if (!raid_bdev->module->resize) {
# # # # #
# ]
2332 : 0 : return;
2333 : : }
2334 : :
2335 [ # # # # : 8 : blockcnt_old = raid_bdev->bdev.blockcnt;
# # ]
2336 [ + + # # : 8 : if (raid_bdev->module->resize(raid_bdev) == false) {
# # # # #
# # # #
# ]
2337 : 4 : return;
2338 : : }
2339 : :
2340 [ # # # # : 4 : SPDK_NOTICELOG("raid bdev '%s': block count was changed from %" PRIu64 " to %" PRIu64 "\n",
# # # # #
# # # ]
2341 : : raid_bdev->bdev.name, blockcnt_old, raid_bdev->bdev.blockcnt);
2342 : :
2343 [ - + + + : 4 : if (raid_bdev->superblock_enabled) {
# # # # ]
2344 [ # # # # ]: 2 : struct raid_bdev_superblock *sb = raid_bdev->sb;
2345 : : uint8_t i;
2346 : :
2347 [ + + # # : 6 : for (i = 0; i < sb->base_bdevs_size; i++) {
# # ]
2348 [ # # # # ]: 4 : struct raid_bdev_sb_base_bdev *sb_base_bdev = &sb->base_bdevs[i];
2349 : :
2350 [ + - # # : 4 : if (sb_base_bdev->slot < raid_bdev->num_base_bdevs) {
# # # # #
# ]
2351 [ # # # # : 4 : base_info = &raid_bdev->base_bdev_info[sb_base_bdev->slot];
# # # # #
# ]
2352 [ # # # # : 4 : sb_base_bdev->data_size = base_info->data_size;
# # # # ]
2353 : 0 : }
2354 : 0 : }
2355 [ # # # # : 2 : sb->raid_size = raid_bdev->bdev.blockcnt;
# # # # #
# ]
2356 : 2 : raid_bdev_write_superblock(raid_bdev, raid_bdev_resize_write_sb_cb, NULL);
2357 : 0 : }
2358 : 0 : }
2359 : :
2360 : : /*
2361 : : * brief:
2362 : : * raid_bdev_event_base_bdev function is called by below layers when base_bdev
2363 : : * triggers asynchronous event.
2364 : : * params:
2365 : : * type - event details.
2366 : : * bdev - bdev that triggered event.
2367 : : * event_ctx - context for event.
2368 : : * returns:
2369 : : * none
2370 : : */
2371 : : static void
2372 : 137 : raid_bdev_event_base_bdev(enum spdk_bdev_event_type type, struct spdk_bdev *bdev,
2373 : : void *event_ctx)
2374 : : {
2375 : : int rc;
2376 : :
2377 [ + + - ]: 137 : switch (type) {
2378 : 129 : case SPDK_BDEV_EVENT_REMOVE:
2379 : 129 : rc = raid_bdev_remove_base_bdev(bdev, NULL, NULL);
2380 [ - + ]: 129 : if (rc != 0) {
2381 [ # # ]: 0 : SPDK_ERRLOG("Failed to remove base bdev %s: %s\n",
2382 : : spdk_bdev_get_name(bdev), spdk_strerror(-rc));
2383 : 0 : }
2384 : 129 : break;
2385 : 8 : case SPDK_BDEV_EVENT_RESIZE:
2386 : 8 : raid_bdev_resize_base_bdev(bdev);
2387 : 8 : break;
2388 : 0 : default:
2389 : 0 : SPDK_NOTICELOG("Unsupported bdev event: type %d\n", type);
2390 : 0 : break;
2391 : : }
2392 : 137 : }
2393 : :
2394 : : /*
2395 : : * brief:
2396 : : * Deletes the specified raid bdev
2397 : : * params:
2398 : : * raid_bdev - pointer to raid bdev
2399 : : * cb_fn - callback function
2400 : : * cb_arg - argument to callback function
2401 : : */
2402 : : void
2403 : 216 : raid_bdev_delete(struct raid_bdev *raid_bdev, raid_bdev_destruct_cb cb_fn, void *cb_arg)
2404 : : {
2405 : : struct raid_base_bdev_info *base_info;
2406 : :
2407 [ - + + + : 216 : SPDK_DEBUGLOG(bdev_raid, "delete raid bdev: %s\n", raid_bdev->bdev.name);
# # # # #
# # # ]
2408 : :
2409 [ - + - + : 216 : if (raid_bdev->destroy_started) {
# # # # ]
2410 [ # # # # : 0 : SPDK_DEBUGLOG(bdev_raid, "destroying raid bdev %s is already started\n",
# # # # #
# # # ]
2411 : : raid_bdev->bdev.name);
2412 [ # # ]: 0 : if (cb_fn) {
2413 [ # # # # ]: 0 : cb_fn(cb_arg, -EALREADY);
2414 : 0 : }
2415 : 0 : return;
2416 : : }
2417 : :
2418 [ # # # # ]: 216 : raid_bdev->destroy_started = true;
2419 : :
2420 [ + + # # : 2239 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
2421 [ # # # # ]: 2023 : base_info->remove_scheduled = true;
2422 : :
2423 [ + + # # : 2023 : if (raid_bdev->state != RAID_BDEV_STATE_ONLINE) {
# # ]
2424 : : /*
2425 : : * As raid bdev is not registered yet or already unregistered,
2426 : : * so cleanup should be done here itself.
2427 : : */
2428 : 402 : raid_bdev_free_base_bdev_resource(base_info);
2429 : 0 : }
2430 : 0 : }
2431 : :
2432 [ + + # # : 216 : if (raid_bdev->num_base_bdevs_discovered == 0) {
# # ]
2433 : : /* There is no base bdev for this raid, so free the raid device. */
2434 : 78 : raid_bdev_cleanup_and_free(raid_bdev);
2435 [ + + ]: 78 : if (cb_fn) {
2436 [ # # # # ]: 50 : cb_fn(cb_arg, 0);
2437 : 0 : }
2438 : 0 : } else {
2439 : 138 : raid_bdev_deconfigure(raid_bdev, cb_fn, cb_arg);
2440 : : }
2441 : 0 : }
2442 : :
2443 : : static void
2444 : 9 : raid_bdev_process_finish_write_sb_cb(int status, struct raid_bdev *raid_bdev, void *ctx)
2445 : : {
2446 [ - + ]: 9 : if (status != 0) {
2447 [ # # # # : 0 : SPDK_ERRLOG("Failed to write raid bdev '%s' superblock after background process finished: %s\n",
# # # # ]
2448 : : raid_bdev->bdev.name, spdk_strerror(-status));
2449 : 0 : }
2450 : 9 : }
2451 : :
2452 : : static void
2453 : 9 : raid_bdev_process_finish_write_sb(void *ctx)
2454 : : {
2455 : 9 : struct raid_bdev *raid_bdev = ctx;
2456 [ # # # # ]: 9 : struct raid_bdev_superblock *sb = raid_bdev->sb;
2457 : : struct raid_bdev_sb_base_bdev *sb_base_bdev;
2458 : : struct raid_base_bdev_info *base_info;
2459 : : uint8_t i;
2460 : :
2461 [ + + # # : 34 : for (i = 0; i < sb->base_bdevs_size; i++) {
# # ]
2462 [ # # # # ]: 25 : sb_base_bdev = &sb->base_bdevs[i];
2463 : :
2464 [ + + # # : 25 : if (sb_base_bdev->state != RAID_SB_BASE_BDEV_CONFIGURED &&
# # # # ]
2465 [ + - # # : 11 : sb_base_bdev->slot < raid_bdev->num_base_bdevs) {
# # # # ]
2466 [ # # # # : 11 : base_info = &raid_bdev->base_bdev_info[sb_base_bdev->slot];
# # # # #
# ]
2467 [ - + + + : 11 : if (base_info->is_configured) {
# # # # ]
2468 [ # # # # ]: 9 : sb_base_bdev->state = RAID_SB_BASE_BDEV_CONFIGURED;
2469 [ # # # # : 9 : sb_base_bdev->data_offset = base_info->data_offset;
# # # # ]
2470 [ # # # # ]: 9 : spdk_uuid_copy(&sb_base_bdev->uuid, &base_info->uuid);
2471 : 0 : }
2472 : 0 : }
2473 : 0 : }
2474 : :
2475 : 9 : raid_bdev_write_superblock(raid_bdev, raid_bdev_process_finish_write_sb_cb, NULL);
2476 : 9 : }
2477 : :
2478 : : static void raid_bdev_process_free(struct raid_bdev_process *process);
2479 : :
2480 : : static void
2481 : 55 : _raid_bdev_process_finish_done(void *ctx)
2482 : : {
2483 : 55 : struct raid_bdev_process *process = ctx;
2484 : : struct raid_process_finish_action *finish_action;
2485 : :
2486 [ + + # # : 89 : while ((finish_action = TAILQ_FIRST(&process->finish_actions)) != NULL) {
# # # # ]
2487 [ - + # # : 34 : TAILQ_REMOVE(&process->finish_actions, finish_action, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
2488 [ # # # # : 34 : finish_action->cb(finish_action->cb_ctx);
# # # # #
# # # ]
2489 : 34 : free(finish_action);
2490 : : }
2491 : :
2492 [ # # # # ]: 55 : spdk_poller_unregister(&process->qos.process_continue_poller);
2493 : :
2494 : 55 : raid_bdev_process_free(process);
2495 : :
2496 : 55 : spdk_thread_exit(spdk_get_thread());
2497 : 55 : }
2498 : :
2499 : : static void
2500 : 34 : raid_bdev_process_finish_target_removed(void *ctx, int status)
2501 : : {
2502 : 34 : struct raid_bdev_process *process = ctx;
2503 : :
2504 [ + + ]: 34 : if (status != 0) {
2505 [ # # ]: 33 : SPDK_ERRLOG("Failed to remove target bdev: %s\n", spdk_strerror(-status));
2506 : 0 : }
2507 : :
2508 [ # # # # ]: 34 : spdk_thread_send_msg(process->thread, _raid_bdev_process_finish_done, process);
2509 : 34 : }
2510 : :
2511 : : static void
2512 : 55 : raid_bdev_process_finish_unquiesced(void *ctx, int status)
2513 : : {
2514 : 55 : struct raid_bdev_process *process = ctx;
2515 : :
2516 [ - + ]: 55 : if (status != 0) {
2517 [ # # ]: 0 : SPDK_ERRLOG("Failed to unquiesce bdev: %s\n", spdk_strerror(-status));
2518 : 0 : }
2519 : :
2520 [ + + # # : 55 : if (process->status != 0) {
# # ]
2521 [ # # # # ]: 34 : status = _raid_bdev_remove_base_bdev(process->target, raid_bdev_process_finish_target_removed,
2522 : 0 : process);
2523 [ + + ]: 34 : if (status != 0) {
2524 : 33 : raid_bdev_process_finish_target_removed(process, status);
2525 : 0 : }
2526 : 34 : return;
2527 : : }
2528 : :
2529 [ # # # # ]: 21 : spdk_thread_send_msg(process->thread, _raid_bdev_process_finish_done, process);
2530 : 0 : }
2531 : :
2532 : : static void
2533 : 55 : raid_bdev_process_finish_unquiesce(void *ctx)
2534 : : {
2535 : 55 : struct raid_bdev_process *process = ctx;
2536 : : int rc;
2537 : :
2538 [ # # # # : 55 : rc = spdk_bdev_unquiesce(&process->raid_bdev->bdev, &g_raid_if,
# # ]
2539 : 0 : raid_bdev_process_finish_unquiesced, process);
2540 [ - + ]: 55 : if (rc != 0) {
2541 : 0 : raid_bdev_process_finish_unquiesced(process, rc);
2542 : 0 : }
2543 : 55 : }
2544 : :
2545 : : static void
2546 : 55 : raid_bdev_process_finish_done(void *ctx)
2547 : : {
2548 : 55 : struct raid_bdev_process *process = ctx;
2549 [ # # # # ]: 55 : struct raid_bdev *raid_bdev = process->raid_bdev;
2550 : :
2551 [ + - # # : 55 : if (process->raid_ch != NULL) {
# # ]
2552 [ # # # # ]: 55 : spdk_put_io_channel(spdk_io_channel_from_ctx(process->raid_ch));
2553 : 0 : }
2554 : :
2555 [ # # # # ]: 55 : process->state = RAID_PROCESS_STATE_STOPPED;
2556 : :
2557 [ + + # # : 55 : if (process->status == 0) {
# # ]
2558 [ # # # # : 21 : SPDK_NOTICELOG("Finished %s on raid bdev %s\n",
# # # # #
# ]
2559 : : raid_bdev_process_to_str(process->type),
2560 : : raid_bdev->bdev.name);
2561 [ - + + + : 21 : if (raid_bdev->superblock_enabled) {
# # # # ]
2562 : 9 : spdk_thread_send_msg(spdk_thread_get_app_thread(),
2563 : : raid_bdev_process_finish_write_sb,
2564 : 0 : raid_bdev);
2565 : 0 : }
2566 : 0 : } else {
2567 [ # # # # : 34 : SPDK_WARNLOG("Finished %s on raid bdev %s: %s\n",
# # # # #
# # # # #
# # ]
2568 : : raid_bdev_process_to_str(process->type),
2569 : : raid_bdev->bdev.name,
2570 : : spdk_strerror(-process->status));
2571 : : }
2572 : :
2573 : 55 : spdk_thread_send_msg(spdk_thread_get_app_thread(), raid_bdev_process_finish_unquiesce,
2574 : 0 : process);
2575 : 55 : }
2576 : :
2577 : : static void
2578 : 55 : __raid_bdev_process_finish(struct spdk_io_channel_iter *i, int status)
2579 : : {
2580 : 55 : struct raid_bdev_process *process = spdk_io_channel_iter_get_ctx(i);
2581 : :
2582 [ # # # # ]: 55 : spdk_thread_send_msg(process->thread, raid_bdev_process_finish_done, process);
2583 : 55 : }
2584 : :
2585 : : static void
2586 : 63 : raid_bdev_channel_process_finish(struct spdk_io_channel_iter *i)
2587 : : {
2588 : 63 : struct raid_bdev_process *process = spdk_io_channel_iter_get_ctx(i);
2589 : 63 : struct spdk_io_channel *ch = spdk_io_channel_iter_get_channel(i);
2590 : 63 : struct raid_bdev_io_channel *raid_ch = spdk_io_channel_get_ctx(ch);
2591 : :
2592 [ + + # # : 63 : if (process->status == 0) {
# # ]
2593 [ # # # # ]: 25 : uint8_t slot = raid_bdev_base_bdev_slot(process->target);
2594 : :
2595 [ # # # # : 25 : raid_ch->base_channel[slot] = raid_ch->process.target_ch;
# # # # #
# # # #
# ]
2596 [ # # # # : 25 : raid_ch->process.target_ch = NULL;
# # ]
2597 : 0 : }
2598 : :
2599 : 63 : raid_bdev_ch_process_cleanup(raid_ch);
2600 : :
2601 : 63 : spdk_for_each_channel_continue(i, 0);
2602 : 63 : }
2603 : :
2604 : : static void
2605 : 55 : raid_bdev_process_finish_quiesced(void *ctx, int status)
2606 : : {
2607 : 55 : struct raid_bdev_process *process = ctx;
2608 [ # # # # ]: 55 : struct raid_bdev *raid_bdev = process->raid_bdev;
2609 : :
2610 [ - + ]: 55 : if (status != 0) {
2611 [ # # ]: 0 : SPDK_ERRLOG("Failed to quiesce bdev: %s\n", spdk_strerror(-status));
2612 : 0 : return;
2613 : : }
2614 : :
2615 [ # # # # ]: 55 : raid_bdev->process = NULL;
2616 [ # # # # : 55 : process->target->is_process_target = false;
# # # # ]
2617 : :
2618 [ # # # # ]: 55 : spdk_for_each_channel(process->raid_bdev, raid_bdev_channel_process_finish, process,
2619 : : __raid_bdev_process_finish);
2620 : 0 : }
2621 : :
2622 : : static void
2623 : 55 : _raid_bdev_process_finish(void *ctx)
2624 : : {
2625 : 55 : struct raid_bdev_process *process = ctx;
2626 : : int rc;
2627 : :
2628 [ # # # # : 55 : rc = spdk_bdev_quiesce(&process->raid_bdev->bdev, &g_raid_if,
# # ]
2629 : 0 : raid_bdev_process_finish_quiesced, process);
2630 [ - + ]: 55 : if (rc != 0) {
2631 : 0 : raid_bdev_process_finish_quiesced(ctx, rc);
2632 : 0 : }
2633 : 55 : }
2634 : :
2635 : : static void
2636 : 55 : raid_bdev_process_do_finish(struct raid_bdev_process *process)
2637 : : {
2638 : 55 : spdk_thread_send_msg(spdk_thread_get_app_thread(), _raid_bdev_process_finish, process);
2639 : 55 : }
2640 : :
2641 : : static void raid_bdev_process_unlock_window_range(struct raid_bdev_process *process);
2642 : : static void raid_bdev_process_thread_run(struct raid_bdev_process *process);
2643 : :
2644 : : static void
2645 : 21 : raid_bdev_process_finish(struct raid_bdev_process *process, int status)
2646 : : {
2647 [ - + # # : 21 : assert(spdk_get_thread() == process->thread);
# # # # ]
2648 : :
2649 [ + - # # : 21 : if (process->status == 0) {
# # ]
2650 [ # # # # ]: 21 : process->status = status;
2651 : 0 : }
2652 : :
2653 [ - + # # : 21 : if (process->state >= RAID_PROCESS_STATE_STOPPING) {
# # ]
2654 : 0 : return;
2655 : : }
2656 : :
2657 [ - + # # : 21 : assert(process->state == RAID_PROCESS_STATE_RUNNING);
# # # # ]
2658 [ # # # # ]: 21 : process->state = RAID_PROCESS_STATE_STOPPING;
2659 : :
2660 [ - + - + : 21 : if (process->window_range_locked) {
# # # # ]
2661 : 0 : raid_bdev_process_unlock_window_range(process);
2662 : 0 : } else {
2663 : 21 : raid_bdev_process_thread_run(process);
2664 : : }
2665 : 0 : }
2666 : :
2667 : : static void
2668 : 1111 : raid_bdev_process_window_range_unlocked(void *ctx, int status)
2669 : : {
2670 : 1111 : struct raid_bdev_process *process = ctx;
2671 : :
2672 [ - + ]: 1111 : if (status != 0) {
2673 [ # # ]: 0 : SPDK_ERRLOG("Failed to unlock LBA range: %s\n", spdk_strerror(-status));
2674 : 0 : raid_bdev_process_finish(process, status);
2675 : 0 : return;
2676 : : }
2677 : :
2678 [ # # # # ]: 1111 : process->window_range_locked = false;
2679 [ # # # # : 1111 : process->window_offset += process->window_size;
# # # # ]
2680 : :
2681 : 1111 : raid_bdev_process_thread_run(process);
2682 : 0 : }
2683 : :
2684 : : static void
2685 : 1111 : raid_bdev_process_unlock_window_range(struct raid_bdev_process *process)
2686 : : {
2687 : : int rc;
2688 : :
2689 [ - + - + : 1111 : assert(process->window_range_locked == true);
# # # # #
# ]
2690 : :
2691 [ # # # # : 1111 : rc = spdk_bdev_unquiesce_range(&process->raid_bdev->bdev, &g_raid_if,
# # ]
2692 [ # # # # : 0 : process->window_offset, process->max_window_size,
# # # # ]
2693 : 0 : raid_bdev_process_window_range_unlocked, process);
2694 [ - + ]: 1111 : if (rc != 0) {
2695 : 0 : raid_bdev_process_window_range_unlocked(process, rc);
2696 : 0 : }
2697 : 1111 : }
2698 : :
2699 : : static void
2700 : 1111 : raid_bdev_process_channels_update_done(struct spdk_io_channel_iter *i, int status)
2701 : : {
2702 : 1111 : struct raid_bdev_process *process = spdk_io_channel_iter_get_ctx(i);
2703 : :
2704 : 1111 : raid_bdev_process_unlock_window_range(process);
2705 : 1111 : }
2706 : :
2707 : : static void
2708 : 1270 : raid_bdev_process_channel_update(struct spdk_io_channel_iter *i)
2709 : : {
2710 : 1270 : struct raid_bdev_process *process = spdk_io_channel_iter_get_ctx(i);
2711 : 1270 : struct spdk_io_channel *ch = spdk_io_channel_iter_get_channel(i);
2712 : 1270 : struct raid_bdev_io_channel *raid_ch = spdk_io_channel_get_ctx(ch);
2713 : :
2714 [ # # # # : 1270 : raid_ch->process.offset = process->window_offset + process->window_size;
# # # # #
# # # #
# ]
2715 : :
2716 : 1270 : spdk_for_each_channel_continue(i, 0);
2717 : 1270 : }
2718 : :
2719 : : void
2720 : 3326 : raid_bdev_process_request_complete(struct raid_bdev_process_request *process_req, int status)
2721 : : {
2722 [ # # # # ]: 3326 : struct raid_bdev_process *process = process_req->process;
2723 : :
2724 [ # # # # : 3326 : TAILQ_INSERT_TAIL(&process->requests, process_req, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
2725 : :
2726 [ - + # # : 3326 : assert(spdk_get_thread() == process->thread);
# # # # ]
2727 [ - + # # : 3326 : assert(process->window_remaining >= process_req->num_blocks);
# # # # #
# # # ]
2728 : :
2729 [ - + ]: 3326 : if (status != 0) {
2730 [ # # # # ]: 0 : process->window_status = status;
2731 : 0 : }
2732 : :
2733 [ # # # # : 3326 : process->window_remaining -= process_req->num_blocks;
# # # # ]
2734 [ + + # # : 3326 : if (process->window_remaining == 0) {
# # ]
2735 [ - + # # : 1111 : if (process->window_status != 0) {
# # ]
2736 [ # # # # ]: 0 : raid_bdev_process_finish(process, process->window_status);
2737 : 0 : return;
2738 : : }
2739 : :
2740 [ # # # # ]: 1111 : spdk_for_each_channel(process->raid_bdev, raid_bdev_process_channel_update, process,
2741 : : raid_bdev_process_channels_update_done);
2742 : 0 : }
2743 : 0 : }
2744 : :
2745 : : static int
2746 : 3575 : raid_bdev_submit_process_request(struct raid_bdev_process *process, uint64_t offset_blocks,
2747 : : uint32_t num_blocks)
2748 : : {
2749 [ # # # # ]: 3575 : struct raid_bdev *raid_bdev = process->raid_bdev;
2750 : : struct raid_bdev_process_request *process_req;
2751 : : int ret;
2752 : :
2753 [ # # # # : 3575 : process_req = TAILQ_FIRST(&process->requests);
# # ]
2754 [ - + ]: 3575 : if (process_req == NULL) {
2755 [ # # # # : 0 : assert(process->window_remaining > 0);
# # # # ]
2756 : 0 : return 0;
2757 : : }
2758 : :
2759 [ # # # # : 3575 : process_req->target = process->target;
# # # # ]
2760 [ # # # # : 3575 : process_req->target_ch = process->raid_ch->process.target_ch;
# # # # #
# # # #
# ]
2761 [ # # # # ]: 3575 : process_req->offset_blocks = offset_blocks;
2762 [ # # # # ]: 3575 : process_req->num_blocks = num_blocks;
2763 [ # # # # : 3575 : process_req->iov.iov_len = num_blocks * raid_bdev->bdev.blocklen;
# # # # #
# # # ]
2764 : :
2765 [ # # # # : 3575 : ret = raid_bdev->module->submit_process_request(process_req, process->raid_ch);
# # # # #
# # # # #
# # ]
2766 [ + + ]: 3575 : if (ret <= 0) {
2767 [ - + ]: 249 : if (ret < 0) {
2768 [ # # # # : 0 : SPDK_ERRLOG("Failed to submit process request on %s: %s\n",
# # # # ]
2769 : : raid_bdev->bdev.name, spdk_strerror(-ret));
2770 [ # # # # ]: 0 : process->window_status = ret;
2771 : 0 : }
2772 : 249 : return ret;
2773 : : }
2774 : :
2775 [ # # # # ]: 3326 : process_req->num_blocks = ret;
2776 [ + - # # : 3326 : TAILQ_REMOVE(&process->requests, process_req, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
2777 : :
2778 : 3326 : return ret;
2779 : 0 : }
2780 : :
2781 : : static void
2782 : 1111 : _raid_bdev_process_thread_run(struct raid_bdev_process *process)
2783 : : {
2784 [ # # # # ]: 1111 : struct raid_bdev *raid_bdev = process->raid_bdev;
2785 [ # # # # ]: 1111 : uint64_t offset = process->window_offset;
2786 [ # # # # : 1111 : const uint64_t offset_end = spdk_min(offset + process->max_window_size, raid_bdev->bdev.blockcnt);
# # # # #
# # # # #
# # # # #
# # # ]
2787 : : int ret;
2788 : :
2789 [ + + ]: 4437 : while (offset < offset_end) {
2790 : 3575 : ret = raid_bdev_submit_process_request(process, offset, offset_end - offset);
2791 [ + + ]: 3575 : if (ret <= 0) {
2792 : 249 : break;
2793 : : }
2794 : :
2795 [ # # # # ]: 3326 : process->window_remaining += ret;
2796 : 3326 : offset += ret;
2797 : : }
2798 : :
2799 [ + - # # : 1111 : if (process->window_remaining > 0) {
# # ]
2800 [ # # # # : 1111 : process->window_size = process->window_remaining;
# # # # ]
2801 : 0 : } else {
2802 [ # # # # ]: 0 : raid_bdev_process_finish(process, process->window_status);
2803 : : }
2804 : 1111 : }
2805 : :
2806 : : static void
2807 : 1111 : raid_bdev_process_window_range_locked(void *ctx, int status)
2808 : : {
2809 : 1111 : struct raid_bdev_process *process = ctx;
2810 : :
2811 [ - + ]: 1111 : if (status != 0) {
2812 [ # # ]: 0 : SPDK_ERRLOG("Failed to lock LBA range: %s\n", spdk_strerror(-status));
2813 : 0 : raid_bdev_process_finish(process, status);
2814 : 0 : return;
2815 : : }
2816 : :
2817 [ # # # # ]: 1111 : process->window_range_locked = true;
2818 : :
2819 [ - + # # : 1111 : if (process->state == RAID_PROCESS_STATE_STOPPING) {
# # ]
2820 : 0 : raid_bdev_process_unlock_window_range(process);
2821 : 0 : return;
2822 : : }
2823 : :
2824 : 1111 : _raid_bdev_process_thread_run(process);
2825 : 0 : }
2826 : :
2827 : : static bool
2828 : 36 : raid_bdev_process_consume_token(struct raid_bdev_process *process)
2829 : : {
2830 [ # # # # ]: 36 : struct raid_bdev *raid_bdev = process->raid_bdev;
2831 : 36 : uint64_t now = spdk_get_ticks();
2832 : :
2833 [ + + # # : 36 : process->qos.bytes_available = spdk_min(process->qos.bytes_max,
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
2834 : : process->qos.bytes_available +
2835 : : (now - process->qos.last_tsc) * process->qos.bytes_per_tsc);
2836 [ # # # # : 36 : process->qos.last_tsc = now;
# # ]
2837 [ + + # # : 36 : if (process->qos.bytes_available > 0.0) {
# # # # ]
2838 [ # # # # : 3 : process->qos.bytes_available -= process->window_size * raid_bdev->bdev.blocklen;
# # # # #
# # # # #
# # ]
2839 : 3 : return true;
2840 : : }
2841 : 33 : return false;
2842 : 0 : }
2843 : :
2844 : : static bool
2845 : 1144 : raid_bdev_process_lock_window_range(struct raid_bdev_process *process)
2846 : : {
2847 [ # # # # ]: 1144 : struct raid_bdev *raid_bdev = process->raid_bdev;
2848 : : int rc;
2849 : :
2850 [ - + - + : 1144 : assert(process->window_range_locked == false);
# # # # #
# ]
2851 : :
2852 [ + + + + : 1144 : if (process->qos.enable_qos) {
# # # # #
# ]
2853 [ + + ]: 36 : if (raid_bdev_process_consume_token(process)) {
2854 [ # # # # : 3 : spdk_poller_pause(process->qos.process_continue_poller);
# # ]
2855 : 0 : } else {
2856 [ # # # # : 33 : spdk_poller_resume(process->qos.process_continue_poller);
# # ]
2857 : 33 : return false;
2858 : : }
2859 : 0 : }
2860 : :
2861 [ # # ]: 1111 : rc = spdk_bdev_quiesce_range(&raid_bdev->bdev, &g_raid_if,
2862 [ # # # # : 0 : process->window_offset, process->max_window_size,
# # # # ]
2863 : 0 : raid_bdev_process_window_range_locked, process);
2864 [ - + ]: 1111 : if (rc != 0) {
2865 : 0 : raid_bdev_process_window_range_locked(process, rc);
2866 : 0 : }
2867 : 1111 : return true;
2868 : 0 : }
2869 : :
2870 : : static int
2871 : 33 : raid_bdev_process_continue_poll(void *arg)
2872 : : {
2873 : 33 : struct raid_bdev_process *process = arg;
2874 : :
2875 [ + + ]: 33 : if (raid_bdev_process_lock_window_range(process)) {
2876 : 3 : return SPDK_POLLER_BUSY;
2877 : : }
2878 : 30 : return SPDK_POLLER_IDLE;
2879 : 0 : }
2880 : :
2881 : : static void
2882 : 1187 : raid_bdev_process_thread_run(struct raid_bdev_process *process)
2883 : : {
2884 [ # # # # ]: 1187 : struct raid_bdev *raid_bdev = process->raid_bdev;
2885 : :
2886 [ - + # # : 1187 : assert(spdk_get_thread() == process->thread);
# # # # ]
2887 [ - + # # : 1187 : assert(process->window_remaining == 0);
# # # # ]
2888 [ - + - + : 1187 : assert(process->window_range_locked == false);
# # # # #
# ]
2889 : :
2890 [ + + # # : 1187 : if (process->state == RAID_PROCESS_STATE_STOPPING) {
# # ]
2891 : 55 : raid_bdev_process_do_finish(process);
2892 : 55 : return;
2893 : : }
2894 : :
2895 [ + + # # : 1132 : if (process->window_offset == raid_bdev->bdev.blockcnt) {
# # # # #
# # # ]
2896 [ - + + + : 21 : SPDK_DEBUGLOG(bdev_raid, "process completed on %s\n", raid_bdev->bdev.name);
# # # # #
# # # ]
2897 : 21 : raid_bdev_process_finish(process, 0);
2898 : 21 : return;
2899 : : }
2900 : :
2901 [ # # # # : 1111 : process->max_window_size = spdk_min(raid_bdev->bdev.blockcnt - process->window_offset,
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # #
# ]
2902 : : process->max_window_size);
2903 : 1111 : raid_bdev_process_lock_window_range(process);
2904 : 0 : }
2905 : :
2906 : : static void
2907 : 55 : raid_bdev_process_thread_init(void *ctx)
2908 : : {
2909 : 55 : struct raid_bdev_process *process = ctx;
2910 [ # # # # ]: 55 : struct raid_bdev *raid_bdev = process->raid_bdev;
2911 : : struct spdk_io_channel *ch;
2912 : :
2913 [ # # # # ]: 55 : process->thread = spdk_get_thread();
2914 : :
2915 : 55 : ch = spdk_get_io_channel(raid_bdev);
2916 [ - + ]: 55 : if (ch == NULL) {
2917 [ # # # # ]: 0 : process->status = -ENOMEM;
2918 : 0 : raid_bdev_process_do_finish(process);
2919 : 0 : return;
2920 : : }
2921 : :
2922 [ # # # # ]: 55 : process->raid_ch = spdk_io_channel_get_ctx(ch);
2923 [ # # # # ]: 55 : process->state = RAID_PROCESS_STATE_RUNNING;
2924 : :
2925 [ + + + + : 55 : if (process->qos.enable_qos) {
# # # # #
# ]
2926 [ # # # # : 3 : process->qos.process_continue_poller = SPDK_POLLER_REGISTER(raid_bdev_process_continue_poll,
# # ]
2927 : : process, 0);
2928 [ # # # # : 3 : spdk_poller_pause(process->qos.process_continue_poller);
# # ]
2929 : 0 : }
2930 : :
2931 [ # # # # : 55 : SPDK_NOTICELOG("Started %s on raid bdev %s\n",
# # # # #
# ]
2932 : : raid_bdev_process_to_str(process->type), raid_bdev->bdev.name);
2933 : :
2934 : 55 : raid_bdev_process_thread_run(process);
2935 : 0 : }
2936 : :
2937 : : static void
2938 : 0 : raid_bdev_channels_abort_start_process_done(struct spdk_io_channel_iter *i, int status)
2939 : : {
2940 : 0 : struct raid_bdev_process *process = spdk_io_channel_iter_get_ctx(i);
2941 : :
2942 [ # # # # ]: 0 : _raid_bdev_remove_base_bdev(process->target, NULL, NULL);
2943 : 0 : raid_bdev_process_free(process);
2944 : :
2945 : : /* TODO: update sb */
2946 : 0 : }
2947 : :
2948 : : static void
2949 : 0 : raid_bdev_channel_abort_start_process(struct spdk_io_channel_iter *i)
2950 : : {
2951 : 0 : struct spdk_io_channel *ch = spdk_io_channel_iter_get_channel(i);
2952 : 0 : struct raid_bdev_io_channel *raid_ch = spdk_io_channel_get_ctx(ch);
2953 : :
2954 : 0 : raid_bdev_ch_process_cleanup(raid_ch);
2955 : :
2956 : 0 : spdk_for_each_channel_continue(i, 0);
2957 : 0 : }
2958 : :
2959 : : static void
2960 : 55 : raid_bdev_channels_start_process_done(struct spdk_io_channel_iter *i, int status)
2961 : : {
2962 : 55 : struct raid_bdev_process *process = spdk_io_channel_iter_get_ctx(i);
2963 [ # # # # ]: 55 : struct raid_bdev *raid_bdev = process->raid_bdev;
2964 : : struct spdk_thread *thread;
2965 : 55 : char thread_name[RAID_BDEV_SB_NAME_SIZE + 16];
2966 : :
2967 [ + - # # ]: 55 : if (status == 0 &&
2968 [ + + + - : 55 : (process->target->remove_scheduled || !process->target->is_configured ||
- + + - #
# # # # #
# # # # #
# # # #
# ]
2969 [ - + # # : 55 : raid_bdev->num_base_bdevs_operational <= raid_bdev->min_base_bdevs_operational)) {
# # # # ]
2970 : : /* a base bdev was removed before we got here */
2971 : 0 : status = -ENODEV;
2972 : 0 : }
2973 : :
2974 [ - + ]: 55 : if (status != 0) {
2975 [ # # # # : 0 : SPDK_ERRLOG("Failed to start %s on %s: %s\n",
# # # # #
# # # ]
2976 : : raid_bdev_process_to_str(process->type), raid_bdev->bdev.name,
2977 : : spdk_strerror(-status));
2978 : 0 : goto err;
2979 : : }
2980 : :
2981 [ - + ]: 55 : snprintf(thread_name, sizeof(thread_name), "%s_%s",
2982 [ # # # # : 0 : raid_bdev->bdev.name, raid_bdev_process_to_str(process->type));
# # # # #
# ]
2983 : :
2984 : 55 : thread = spdk_thread_create(thread_name, NULL);
2985 [ - + ]: 55 : if (thread == NULL) {
2986 [ # # # # : 0 : SPDK_ERRLOG("Failed to create %s thread for %s\n",
# # # # #
# ]
2987 : : raid_bdev_process_to_str(process->type), raid_bdev->bdev.name);
2988 : 0 : goto err;
2989 : : }
2990 : :
2991 [ # # # # ]: 55 : raid_bdev->process = process;
2992 : :
2993 : 55 : spdk_thread_send_msg(thread, raid_bdev_process_thread_init, process);
2994 : :
2995 : 55 : return;
2996 : 0 : err:
2997 [ # # # # ]: 0 : spdk_for_each_channel(process->raid_bdev, raid_bdev_channel_abort_start_process, process,
2998 : : raid_bdev_channels_abort_start_process_done);
2999 : 0 : }
3000 : :
3001 : : static void
3002 : 8 : raid_bdev_channel_start_process(struct spdk_io_channel_iter *i)
3003 : : {
3004 : 8 : struct raid_bdev_process *process = spdk_io_channel_iter_get_ctx(i);
3005 : 8 : struct spdk_io_channel *ch = spdk_io_channel_iter_get_channel(i);
3006 : 8 : struct raid_bdev_io_channel *raid_ch = spdk_io_channel_get_ctx(ch);
3007 : : int rc;
3008 : :
3009 : 8 : rc = raid_bdev_ch_process_setup(raid_ch, process);
3010 : :
3011 : 8 : spdk_for_each_channel_continue(i, rc);
3012 : 8 : }
3013 : :
3014 : : static void
3015 : 55 : raid_bdev_process_start(struct raid_bdev_process *process)
3016 : : {
3017 [ # # # # ]: 55 : struct raid_bdev *raid_bdev = process->raid_bdev;
3018 : :
3019 [ - + # # : 55 : assert(raid_bdev->module->submit_process_request != NULL);
# # # # #
# # # ]
3020 : :
3021 : 55 : spdk_for_each_channel(raid_bdev, raid_bdev_channel_start_process, process,
3022 : : raid_bdev_channels_start_process_done);
3023 : 55 : }
3024 : :
3025 : : static void
3026 : 880 : raid_bdev_process_request_free(struct raid_bdev_process_request *process_req)
3027 : : {
3028 [ # # # # : 880 : spdk_dma_free(process_req->iov.iov_base);
# # ]
3029 [ # # # # ]: 880 : spdk_dma_free(process_req->md_buf);
3030 : 880 : free(process_req);
3031 : 880 : }
3032 : :
3033 : : static struct raid_bdev_process_request *
3034 : 880 : raid_bdev_process_alloc_request(struct raid_bdev_process *process)
3035 : : {
3036 [ # # # # ]: 880 : struct raid_bdev *raid_bdev = process->raid_bdev;
3037 : : struct raid_bdev_process_request *process_req;
3038 : :
3039 : 880 : process_req = calloc(1, sizeof(*process_req));
3040 [ - + ]: 880 : if (process_req == NULL) {
3041 : 0 : return NULL;
3042 : : }
3043 : :
3044 [ # # # # ]: 880 : process_req->process = process;
3045 [ # # # # : 880 : process_req->iov.iov_len = process->max_window_size * raid_bdev->bdev.blocklen;
# # # # #
# # # # #
# # ]
3046 [ # # # # : 880 : process_req->iov.iov_base = spdk_dma_malloc(process_req->iov.iov_len, 4096, 0);
# # # # #
# # # ]
3047 [ - + # # : 880 : if (process_req->iov.iov_base == NULL) {
# # # # ]
3048 : 0 : free(process_req);
3049 : 0 : return NULL;
3050 : : }
3051 [ + + # # ]: 880 : if (spdk_bdev_is_md_separate(&raid_bdev->bdev)) {
3052 [ # # # # : 160 : process_req->md_buf = spdk_dma_malloc(process->max_window_size * raid_bdev->bdev.md_len, 4096, 0);
# # # # #
# # # #
# ]
3053 [ - + # # : 160 : if (process_req->md_buf == NULL) {
# # ]
3054 : 0 : raid_bdev_process_request_free(process_req);
3055 : 0 : return NULL;
3056 : : }
3057 : 0 : }
3058 : :
3059 : 880 : return process_req;
3060 : 0 : }
3061 : :
3062 : : static void
3063 : 55 : raid_bdev_process_free(struct raid_bdev_process *process)
3064 : : {
3065 : : struct raid_bdev_process_request *process_req;
3066 : :
3067 [ + + # # : 935 : while ((process_req = TAILQ_FIRST(&process->requests)) != NULL) {
# # # # ]
3068 [ + + # # : 880 : TAILQ_REMOVE(&process->requests, process_req, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # ]
3069 : 880 : raid_bdev_process_request_free(process_req);
3070 : : }
3071 : :
3072 : 55 : free(process);
3073 : 55 : }
3074 : :
3075 : : static struct raid_bdev_process *
3076 : 55 : raid_bdev_process_alloc(struct raid_bdev *raid_bdev, enum raid_process_type type,
3077 : : struct raid_base_bdev_info *target)
3078 : : {
3079 : : struct raid_bdev_process *process;
3080 : : struct raid_bdev_process_request *process_req;
3081 : : int i;
3082 : :
3083 : 55 : process = calloc(1, sizeof(*process));
3084 [ - + ]: 55 : if (process == NULL) {
3085 : 0 : return NULL;
3086 : : }
3087 : :
3088 [ # # # # ]: 55 : process->raid_bdev = raid_bdev;
3089 [ # # # # ]: 55 : process->type = type;
3090 [ # # # # ]: 55 : process->target = target;
3091 [ + - # # : 55 : process->max_window_size = spdk_max(spdk_divide_round_up(g_opts.process_window_size_kb * 1024UL,
# # # # #
# # # # #
# # # # #
# # # ]
3092 : : spdk_bdev_get_data_block_size(&raid_bdev->bdev)),
3093 : : raid_bdev->bdev.write_unit_size);
3094 [ # # # # : 55 : TAILQ_INIT(&process->requests);
# # # # #
# # # # #
# # ]
3095 [ # # # # : 55 : TAILQ_INIT(&process->finish_actions);
# # # # #
# # # # #
# # ]
3096 : :
3097 [ + + # # ]: 55 : if (g_opts.process_max_bandwidth_mb_sec != 0) {
3098 [ # # # # : 3 : process->qos.enable_qos = true;
# # ]
3099 [ # # # # : 3 : process->qos.last_tsc = spdk_get_ticks();
# # ]
3100 [ # # # # : 4 : process->qos.bytes_per_tsc = g_opts.process_max_bandwidth_mb_sec * 1024 * 1024.0 /
# # # # #
# ]
3101 : 3 : spdk_get_ticks_hz();
3102 [ # # # # : 3 : process->qos.bytes_max = g_opts.process_max_bandwidth_mb_sec * 1024 * 1024.0 / SPDK_SEC_TO_MSEC;
# # # # ]
3103 [ # # # # : 3 : process->qos.bytes_available = 0.0;
# # ]
3104 : 0 : }
3105 : :
3106 [ + + # # ]: 935 : for (i = 0; i < RAID_BDEV_PROCESS_MAX_QD; i++) {
3107 : 880 : process_req = raid_bdev_process_alloc_request(process);
3108 [ - + ]: 880 : if (process_req == NULL) {
3109 : 0 : raid_bdev_process_free(process);
3110 : 0 : return NULL;
3111 : : }
3112 : :
3113 [ # # # # : 880 : TAILQ_INSERT_TAIL(&process->requests, process_req, link);
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # # # #
# # ]
3114 : 0 : }
3115 : :
3116 : 55 : return process;
3117 : 0 : }
3118 : :
3119 : : static int
3120 : 55 : raid_bdev_start_rebuild(struct raid_base_bdev_info *target)
3121 : : {
3122 : : struct raid_bdev_process *process;
3123 : :
3124 [ - + # # ]: 55 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
3125 : :
3126 [ # # # # ]: 55 : process = raid_bdev_process_alloc(target->raid_bdev, RAID_PROCESS_REBUILD, target);
3127 [ - + ]: 55 : if (process == NULL) {
3128 : 0 : return -ENOMEM;
3129 : : }
3130 : :
3131 : 55 : raid_bdev_process_start(process);
3132 : :
3133 : 55 : return 0;
3134 : 0 : }
3135 : :
3136 : : static void raid_bdev_configure_base_bdev_cont(struct raid_base_bdev_info *base_info);
3137 : :
3138 : : static void
3139 : 49 : _raid_bdev_configure_base_bdev_cont(struct spdk_io_channel_iter *i, int status)
3140 : : {
3141 : 49 : struct raid_base_bdev_info *base_info = spdk_io_channel_iter_get_ctx(i);
3142 : :
3143 : 49 : raid_bdev_configure_base_bdev_cont(base_info);
3144 : 49 : }
3145 : :
3146 : : static void
3147 : 8 : raid_bdev_ch_sync(struct spdk_io_channel_iter *i)
3148 : : {
3149 : 8 : spdk_for_each_channel_continue(i, 0);
3150 : 8 : }
3151 : :
3152 : : static void
3153 : 2411 : raid_bdev_configure_base_bdev_cont(struct raid_base_bdev_info *base_info)
3154 : : {
3155 [ # # # # ]: 2411 : struct raid_bdev *raid_bdev = base_info->raid_bdev;
3156 : : raid_base_bdev_cb configure_cb;
3157 : : int rc;
3158 : :
3159 [ + + # # : 2411 : if (raid_bdev->num_base_bdevs_discovered == raid_bdev->num_base_bdevs_operational &&
# # # # #
# # # ]
3160 [ - + + + : 98 : base_info->is_process_target == false) {
# # ]
3161 : : /* TODO: defer if rebuild in progress on another base bdev */
3162 [ - + # # : 49 : assert(raid_bdev->process == NULL);
# # # # ]
3163 [ - + # # : 49 : assert(raid_bdev->state == RAID_BDEV_STATE_ONLINE);
# # # # ]
3164 [ # # # # ]: 49 : base_info->is_process_target = true;
3165 : : /* To assure is_process_target is set before is_configured when checked in raid_bdev_create_cb() */
3166 : 49 : spdk_for_each_channel(raid_bdev, raid_bdev_ch_sync, base_info, _raid_bdev_configure_base_bdev_cont);
3167 : 49 : return;
3168 : : }
3169 : :
3170 [ # # # # ]: 2362 : base_info->is_configured = true;
3171 : :
3172 [ # # ]: 2362 : raid_bdev->num_base_bdevs_discovered++;
3173 [ - + # # : 2362 : assert(raid_bdev->num_base_bdevs_discovered <= raid_bdev->num_base_bdevs);
# # # # #
# # # ]
3174 [ - + # # : 2362 : assert(raid_bdev->num_base_bdevs_operational <= raid_bdev->num_base_bdevs);
# # # # #
# # # ]
3175 [ - + # # : 2362 : assert(raid_bdev->num_base_bdevs_operational >= raid_bdev->min_base_bdevs_operational);
# # # # #
# # # ]
3176 : :
3177 [ # # # # ]: 2362 : configure_cb = base_info->configure_cb;
3178 [ # # # # ]: 2362 : base_info->configure_cb = NULL;
3179 : : /*
3180 : : * Configure the raid bdev when the number of discovered base bdevs reaches the number
3181 : : * of base bdevs we know to be operational members of the array. Usually this is equal
3182 : : * to the total number of base bdevs (num_base_bdevs) but can be less - when the array is
3183 : : * degraded.
3184 : : */
3185 [ + + # # : 2362 : if (raid_bdev->num_base_bdevs_discovered == raid_bdev->num_base_bdevs_operational) {
# # # # #
# ]
3186 [ # # # # ]: 329 : rc = raid_bdev_configure(raid_bdev, configure_cb, base_info->configure_cb_ctx);
3187 [ - + ]: 329 : if (rc != 0) {
3188 [ # # ]: 0 : SPDK_ERRLOG("Failed to configure raid bdev: %s\n", spdk_strerror(-rc));
3189 : 0 : } else {
3190 : 329 : configure_cb = NULL;
3191 : : }
3192 [ - + + + : 2033 : } else if (base_info->is_process_target) {
# # # # ]
3193 [ # # ]: 49 : raid_bdev->num_base_bdevs_operational++;
3194 : 49 : rc = raid_bdev_start_rebuild(base_info);
3195 [ - + ]: 49 : if (rc != 0) {
3196 [ # # ]: 0 : SPDK_ERRLOG("Failed to start rebuild: %s\n", spdk_strerror(-rc));
3197 : 0 : _raid_bdev_remove_base_bdev(base_info, NULL, NULL);
3198 : 0 : }
3199 : 0 : } else {
3200 : 1984 : rc = 0;
3201 : : }
3202 : :
3203 [ + + ]: 2362 : if (configure_cb != NULL) {
3204 [ # # # # : 1968 : configure_cb(base_info->configure_cb_ctx, rc);
# # # # ]
3205 : 0 : }
3206 : 0 : }
3207 : :
3208 : : static void raid_bdev_examine_sb(const struct raid_bdev_superblock *sb, struct spdk_bdev *bdev,
3209 : : raid_base_bdev_cb cb_fn, void *cb_ctx);
3210 : :
3211 : : static void
3212 : 2185 : raid_bdev_configure_base_bdev_check_sb_cb(const struct raid_bdev_superblock *sb, int status,
3213 : : void *ctx)
3214 : : {
3215 : 2185 : struct raid_base_bdev_info *base_info = ctx;
3216 [ # # # # ]: 2185 : raid_base_bdev_cb configure_cb = base_info->configure_cb;
3217 : :
3218 [ + + - ]: 2185 : switch (status) {
3219 : 58 : case 0:
3220 : : /* valid superblock found */
3221 [ # # # # ]: 58 : base_info->configure_cb = NULL;
3222 [ + + # # : 58 : if (spdk_uuid_compare(&base_info->raid_bdev->bdev.uuid, &sb->uuid) == 0) {
# # # # #
# # # ]
3223 [ # # # # ]: 18 : struct spdk_bdev *bdev = spdk_bdev_desc_get_bdev(base_info->desc);
3224 : :
3225 : 18 : raid_bdev_free_base_bdev_resource(base_info);
3226 [ # # # # ]: 18 : raid_bdev_examine_sb(sb, bdev, configure_cb, base_info->configure_cb_ctx);
3227 : 18 : return;
3228 : : }
3229 [ # # # # ]: 40 : SPDK_ERRLOG("Superblock of a different raid bdev found on bdev %s\n", base_info->name);
3230 : 40 : status = -EEXIST;
3231 : 40 : raid_bdev_free_base_bdev_resource(base_info);
3232 : 40 : break;
3233 : 2127 : case -EINVAL:
3234 : : /* no valid superblock */
3235 : 2127 : raid_bdev_configure_base_bdev_cont(base_info);
3236 : 2127 : return;
3237 : 0 : default:
3238 [ # # # # : 0 : SPDK_ERRLOG("Failed to examine bdev %s: %s\n",
# # ]
3239 : : base_info->name, spdk_strerror(-status));
3240 : 0 : break;
3241 : : }
3242 : :
3243 [ + - ]: 40 : if (configure_cb != NULL) {
3244 [ # # # # ]: 40 : base_info->configure_cb = NULL;
3245 [ # # # # : 40 : configure_cb(base_info->configure_cb_ctx, status);
# # # # ]
3246 : 0 : }
3247 : 0 : }
3248 : :
3249 : : static int
3250 : 2642 : raid_bdev_configure_base_bdev(struct raid_base_bdev_info *base_info, bool existing,
3251 : : raid_base_bdev_cb cb_fn, void *cb_ctx)
3252 : : {
3253 [ # # # # ]: 2642 : struct raid_bdev *raid_bdev = base_info->raid_bdev;
3254 : 2538 : struct spdk_bdev_desc *desc;
3255 : : struct spdk_bdev *bdev;
3256 : : const struct spdk_uuid *bdev_uuid;
3257 : : int rc;
3258 : :
3259 [ - + # # ]: 2642 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
3260 [ - + # # : 2642 : assert(base_info->desc == NULL);
# # # # ]
3261 : :
3262 : : /*
3263 : : * Base bdev can be added by name or uuid. Here we assure both properties are set and valid
3264 : : * before claiming the bdev.
3265 : : */
3266 : :
3267 [ + + # # ]: 2642 : if (!spdk_uuid_is_null(&base_info->uuid)) {
3268 : 177 : char uuid_str[SPDK_UUID_STRING_LEN];
3269 : : const char *bdev_name;
3270 : :
3271 [ # # ]: 177 : spdk_uuid_fmt_lower(uuid_str, sizeof(uuid_str), &base_info->uuid);
3272 : :
3273 : : /* UUID of a bdev is registered as its alias */
3274 : 177 : bdev = spdk_bdev_get_by_name(uuid_str);
3275 [ - + ]: 177 : if (bdev == NULL) {
3276 : 0 : return -ENODEV;
3277 : : }
3278 : :
3279 : 177 : bdev_name = spdk_bdev_get_name(bdev);
3280 : :
3281 [ + + # # : 177 : if (base_info->name == NULL) {
# # ]
3282 [ - + # # : 145 : assert(existing == true);
# # ]
3283 [ - + # # : 145 : base_info->name = strdup(bdev_name);
# # ]
3284 [ - + # # : 145 : if (base_info->name == NULL) {
# # ]
3285 : 0 : return -ENOMEM;
3286 : : }
3287 [ - + - + : 32 : } else if (strcmp(base_info->name, bdev_name) != 0) {
- + # # #
# ]
3288 [ # # # # ]: 0 : SPDK_ERRLOG("Name mismatch for base bdev '%s' - expected '%s'\n",
3289 : : bdev_name, base_info->name);
3290 : 0 : return -EINVAL;
3291 : : }
3292 : 0 : }
3293 : :
3294 [ - + # # : 2642 : assert(base_info->name != NULL);
# # # # ]
3295 : :
3296 [ # # # # ]: 2642 : rc = spdk_bdev_open_ext(base_info->name, true, raid_bdev_event_base_bdev, NULL, &desc);
3297 [ + + ]: 2642 : if (rc != 0) {
3298 [ - + ]: 216 : if (rc != -ENODEV) {
3299 [ # # # # ]: 0 : SPDK_ERRLOG("Unable to create desc on bdev '%s'\n", base_info->name);
3300 : 0 : }
3301 : 216 : return rc;
3302 : : }
3303 : :
3304 : 2426 : bdev = spdk_bdev_desc_get_bdev(desc);
3305 : 2426 : bdev_uuid = spdk_bdev_get_uuid(bdev);
3306 : :
3307 [ + + # # ]: 2426 : if (spdk_uuid_is_null(&base_info->uuid)) {
3308 [ # # ]: 2249 : spdk_uuid_copy(&base_info->uuid, bdev_uuid);
3309 [ - + # # ]: 177 : } else if (spdk_uuid_compare(&base_info->uuid, bdev_uuid) != 0) {
3310 [ # # # # ]: 0 : SPDK_ERRLOG("UUID mismatch for base bdev '%s'\n", base_info->name);
3311 : 0 : spdk_bdev_close(desc);
3312 : 0 : return -EINVAL;
3313 : : }
3314 : :
3315 : 2426 : rc = spdk_bdev_module_claim_bdev(bdev, NULL, &g_raid_if);
3316 [ + + ]: 2426 : if (rc != 0) {
3317 : 6 : SPDK_ERRLOG("Unable to claim this bdev as it is already claimed\n");
3318 : 6 : spdk_bdev_close(desc);
3319 : 6 : return rc;
3320 : : }
3321 : :
3322 [ - + + + : 2420 : SPDK_DEBUGLOG(bdev_raid, "bdev %s is claimed\n", bdev->name);
# # # # #
# ]
3323 : :
3324 [ # # # # ]: 2420 : base_info->app_thread_ch = spdk_bdev_get_io_channel(desc);
3325 [ - + # # : 2420 : if (base_info->app_thread_ch == NULL) {
# # ]
3326 : 0 : SPDK_ERRLOG("Failed to get io channel\n");
3327 : 0 : spdk_bdev_module_release_bdev(bdev);
3328 : 0 : spdk_bdev_close(desc);
3329 : 0 : return -ENOMEM;
3330 : : }
3331 : :
3332 [ # # # # ]: 2420 : base_info->desc = desc;
3333 [ # # # # : 2420 : base_info->blockcnt = bdev->blockcnt;
# # # # ]
3334 : :
3335 [ + + + + : 2420 : if (raid_bdev->superblock_enabled) {
# # # # ]
3336 : : uint64_t data_offset;
3337 : :
3338 [ + + # # : 494 : if (base_info->data_offset == 0) {
# # ]
3339 [ - + - + : 391 : assert((RAID_BDEV_MIN_DATA_OFFSET_SIZE % spdk_bdev_get_data_block_size(bdev)) == 0);
# # ]
3340 [ - + ]: 391 : data_offset = RAID_BDEV_MIN_DATA_OFFSET_SIZE / spdk_bdev_get_data_block_size(bdev);
3341 : 0 : } else {
3342 [ # # # # ]: 103 : data_offset = base_info->data_offset;
3343 : : }
3344 : :
3345 [ + + # # : 494 : if (bdev->optimal_io_boundary != 0) {
# # ]
3346 : 22 : data_offset = spdk_divide_round_up(data_offset,
3347 [ # # # # : 11 : bdev->optimal_io_boundary) * bdev->optimal_io_boundary;
# # # # #
# ]
3348 [ + + - + : 11 : if (base_info->data_offset != 0 && base_info->data_offset != data_offset) {
# # # # #
# # # ]
3349 [ # # # # : 0 : SPDK_WARNLOG("Data offset %lu on bdev '%s' is different than optimal value %lu\n",
# # # # ]
3350 : : base_info->data_offset, base_info->name, data_offset);
3351 [ # # # # ]: 0 : data_offset = base_info->data_offset;
3352 : 0 : }
3353 : 0 : }
3354 : :
3355 [ # # # # ]: 494 : base_info->data_offset = data_offset;
3356 : 0 : }
3357 : :
3358 [ - + # # : 2420 : if (base_info->data_offset >= bdev->blockcnt) {
# # # # #
# ]
3359 [ # # # # : 0 : SPDK_ERRLOG("Data offset %lu exceeds base bdev capacity %lu on bdev '%s'\n",
# # # # #
# # # ]
3360 : : base_info->data_offset, bdev->blockcnt, base_info->name);
3361 : 0 : rc = -EINVAL;
3362 : 0 : goto out;
3363 : : }
3364 : :
3365 [ + + # # : 2420 : if (base_info->data_size == 0) {
# # ]
3366 [ # # # # : 2194 : base_info->data_size = bdev->blockcnt - base_info->data_offset;
# # # # #
# # # ]
3367 [ - + # # : 226 : } else if (base_info->data_offset + base_info->data_size > bdev->blockcnt) {
# # # # #
# # # #
# ]
3368 [ # # # # : 0 : SPDK_ERRLOG("Data offset and size exceeds base bdev capacity %lu on bdev '%s'\n",
# # # # ]
3369 : : bdev->blockcnt, base_info->name);
3370 : 0 : rc = -EINVAL;
3371 : 0 : goto out;
3372 : : }
3373 : :
3374 [ + + + + : 2420 : if (!raid_bdev->module->dif_supported && spdk_bdev_get_dif_type(bdev) != SPDK_DIF_DISABLE) {
- + # # #
# # # #
# ]
3375 [ # # # # ]: 0 : SPDK_ERRLOG("Base bdev '%s' has DIF or DIX enabled - unsupported RAID configuration\n",
3376 : : bdev->name);
3377 : 0 : rc = -EINVAL;
3378 : 0 : goto out;
3379 : : }
3380 : :
3381 : : /*
3382 : : * Set the raid bdev properties if this is the first base bdev configured,
3383 : : * otherwise - verify. Assumption is that all the base bdevs for any raid bdev should
3384 : : * have the same blocklen and metadata format.
3385 : : */
3386 [ + + # # : 2420 : if (raid_bdev->bdev.blocklen == 0) {
# # # # ]
3387 [ # # # # : 382 : raid_bdev->bdev.blocklen = bdev->blocklen;
# # # # #
# ]
3388 [ # # # # : 382 : raid_bdev->bdev.md_len = spdk_bdev_get_md_size(bdev);
# # ]
3389 [ # # # # : 382 : raid_bdev->bdev.md_interleave = spdk_bdev_is_md_interleaved(bdev);
# # ]
3390 [ # # # # : 382 : raid_bdev->bdev.dif_type = spdk_bdev_get_dif_type(bdev);
# # ]
3391 [ # # # # : 382 : raid_bdev->bdev.dif_check_flags = bdev->dif_check_flags;
# # # # #
# ]
3392 [ # # # # : 382 : raid_bdev->bdev.dif_is_head_of_md = spdk_bdev_is_dif_head_of_md(bdev);
# # ]
3393 [ # # # # : 382 : raid_bdev->bdev.dif_pi_format = bdev->dif_pi_format;
# # # # #
# ]
3394 : 0 : } else {
3395 [ - + # # : 2038 : if (raid_bdev->bdev.blocklen != bdev->blocklen) {
# # # # #
# # # ]
3396 [ # # # # : 0 : SPDK_ERRLOG("Raid bdev '%s' blocklen %u differs from base bdev '%s' blocklen %u\n",
# # # # #
# # # # #
# # # # #
# ]
3397 : : raid_bdev->bdev.name, raid_bdev->bdev.blocklen, bdev->name, bdev->blocklen);
3398 : 0 : rc = -EINVAL;
3399 : 0 : goto out;
3400 : : }
3401 : :
3402 [ + - + - : 4076 : if (raid_bdev->bdev.md_len != spdk_bdev_get_md_size(bdev) ||
# # # # #
# ]
3403 [ + + + - : 4076 : raid_bdev->bdev.md_interleave != spdk_bdev_is_md_interleaved(bdev) ||
# # # # #
# ]
3404 [ # # # # : 2038 : raid_bdev->bdev.dif_type != spdk_bdev_get_dif_type(bdev) ||
# # # # ]
3405 [ + - + - : 4076 : raid_bdev->bdev.dif_check_flags != bdev->dif_check_flags ||
# # # # #
# # # ]
3406 [ - + # # : 2038 : raid_bdev->bdev.dif_is_head_of_md != spdk_bdev_is_dif_head_of_md(bdev) ||
# # # # #
# ]
3407 [ - + # # : 2038 : raid_bdev->bdev.dif_pi_format != bdev->dif_pi_format) {
# # # # #
# ]
3408 [ # # # # : 0 : SPDK_ERRLOG("Raid bdev '%s' has different metadata format than base bdev '%s'\n",
# # # # #
# ]
3409 : : raid_bdev->bdev.name, bdev->name);
3410 : 0 : rc = -EINVAL;
3411 : 0 : goto out;
3412 : : }
3413 : : }
3414 : :
3415 [ - + # # : 2420 : assert(base_info->configure_cb == NULL);
# # # # ]
3416 [ # # # # ]: 2420 : base_info->configure_cb = cb_fn;
3417 [ # # # # ]: 2420 : base_info->configure_cb_ctx = cb_ctx;
3418 : :
3419 [ + + # # ]: 2420 : if (existing) {
3420 : 235 : raid_bdev_configure_base_bdev_cont(base_info);
3421 : 0 : } else {
3422 : : /* check for existing superblock when using a new bdev */
3423 [ # # # # ]: 2185 : rc = raid_bdev_load_base_bdev_superblock(desc, base_info->app_thread_ch,
3424 : 0 : raid_bdev_configure_base_bdev_check_sb_cb, base_info);
3425 [ + - ]: 2185 : if (rc) {
3426 [ # # # # : 0 : SPDK_ERRLOG("Failed to read bdev %s superblock: %s\n",
# # ]
3427 : : bdev->name, spdk_strerror(-rc));
3428 : 0 : }
3429 : : }
3430 : 2420 : out:
3431 [ - + ]: 2420 : if (rc != 0) {
3432 [ # # # # ]: 0 : base_info->configure_cb = NULL;
3433 : 0 : raid_bdev_free_base_bdev_resource(base_info);
3434 : 0 : }
3435 : 2420 : return rc;
3436 : 0 : }
3437 : :
3438 : : int
3439 : 2407 : raid_bdev_add_base_bdev(struct raid_bdev *raid_bdev, const char *name,
3440 : : raid_base_bdev_cb cb_fn, void *cb_ctx)
3441 : : {
3442 : 2407 : struct raid_base_bdev_info *base_info = NULL, *iter;
3443 : : int rc;
3444 : :
3445 [ - + # # ]: 2407 : assert(name != NULL);
3446 [ - + # # ]: 2407 : assert(spdk_get_thread() == spdk_thread_get_app_thread());
3447 : :
3448 [ - + # # : 2407 : if (raid_bdev->process != NULL) {
# # ]
3449 [ # # # # : 0 : SPDK_ERRLOG("raid bdev '%s' is in process\n",
# # ]
3450 : : raid_bdev->bdev.name);
3451 : 0 : return -EPERM;
3452 : : }
3453 : :
3454 [ + + # # : 2407 : if (raid_bdev->state == RAID_BDEV_STATE_CONFIGURING) {
# # ]
3455 : 2358 : struct spdk_bdev *bdev = spdk_bdev_get_by_name(name);
3456 : :
3457 [ + + ]: 2358 : if (bdev != NULL) {
3458 [ + + # # : 52833 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, iter) {
# # # # #
# # # # #
# # # # ]
3459 [ + + + + : 77261 : if (iter->name == NULL &&
# # # # ]
3460 [ # # # # ]: 26538 : spdk_uuid_compare(&bdev->uuid, &iter->uuid) == 0) {
3461 : 32 : base_info = iter;
3462 : 32 : break;
3463 : : }
3464 : 0 : }
3465 : 0 : }
3466 : 0 : }
3467 : :
3468 [ + + - + : 2407 : if (base_info == NULL || raid_bdev->state == RAID_BDEV_STATE_ONLINE) {
# # # # ]
3469 [ + - # # : 26882 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, iter) {
# # # # #
# # # # #
# # # # ]
3470 [ + + + - : 26882 : if (iter->name == NULL && spdk_uuid_is_null(&iter->uuid)) {
# # # # #
# ]
3471 : 2375 : base_info = iter;
3472 : 2375 : break;
3473 : : }
3474 : 0 : }
3475 : 0 : }
3476 : :
3477 [ - + ]: 2407 : if (base_info == NULL) {
3478 [ # # # # : 0 : SPDK_ERRLOG("no empty slot found in raid bdev '%s' for new base bdev '%s'\n",
# # ]
3479 : : raid_bdev->bdev.name, name);
3480 : 0 : return -EINVAL;
3481 : : }
3482 : :
3483 [ - + - + : 2407 : assert(base_info->is_configured == false);
# # # # #
# ]
3484 : :
3485 [ + + # # : 2407 : if (raid_bdev->state == RAID_BDEV_STATE_ONLINE) {
# # ]
3486 [ - + # # : 49 : assert(base_info->data_size != 0);
# # # # ]
3487 [ - + # # : 49 : assert(base_info->desc == NULL);
# # # # ]
3488 : 0 : }
3489 : :
3490 [ - + # # : 2407 : base_info->name = strdup(name);
# # ]
3491 [ - + # # : 2407 : if (base_info->name == NULL) {
# # ]
3492 : 0 : return -ENOMEM;
3493 : : }
3494 : :
3495 : 2407 : rc = raid_bdev_configure_base_bdev(base_info, false, cb_fn, cb_ctx);
3496 [ + + + + : 2407 : if (rc != 0 && (rc != -ENODEV || raid_bdev->state != RAID_BDEV_STATE_CONFIGURING)) {
- + # # #
# ]
3497 [ # # ]: 6 : SPDK_ERRLOG("base bdev '%s' configure failed: %s\n", name, spdk_strerror(-rc));
3498 [ # # # # ]: 6 : free(base_info->name);
3499 [ # # # # ]: 6 : base_info->name = NULL;
3500 : 0 : }
3501 : :
3502 : 2407 : return rc;
3503 : 0 : }
3504 : :
3505 : : static int
3506 : 49 : raid_bdev_create_from_sb(const struct raid_bdev_superblock *sb, struct raid_bdev **raid_bdev_out)
3507 : : {
3508 : 49 : struct raid_bdev *raid_bdev;
3509 : : uint8_t i;
3510 : : int rc;
3511 : :
3512 [ # # # # : 98 : rc = _raid_bdev_create(sb->name, (sb->strip_size * sb->block_size) / 1024, sb->num_base_bdevs,
# # # # #
# # # # #
# # ]
3513 [ # # # # : 49 : sb->level, true, &sb->uuid, &raid_bdev);
# # ]
3514 [ - + ]: 49 : if (rc != 0) {
3515 : 0 : return rc;
3516 : : }
3517 : :
3518 [ # # # # ]: 49 : rc = raid_bdev_alloc_superblock(raid_bdev, sb->block_size);
3519 [ - + ]: 49 : if (rc != 0) {
3520 : 0 : raid_bdev_free(raid_bdev);
3521 : 0 : return rc;
3522 : : }
3523 : :
3524 [ - + # # : 49 : assert(sb->length <= RAID_BDEV_SB_MAX_LENGTH);
# # # # ]
3525 [ - + - + : 49 : memcpy(raid_bdev->sb, sb, sb->length);
# # # # #
# # # ]
3526 : :
3527 [ + + # # : 184 : for (i = 0; i < sb->base_bdevs_size; i++) {
# # ]
3528 [ # # # # ]: 135 : const struct raid_bdev_sb_base_bdev *sb_base_bdev = &sb->base_bdevs[i];
3529 [ # # # # : 135 : struct raid_base_bdev_info *base_info = &raid_bdev->base_bdev_info[sb_base_bdev->slot];
# # # # #
# ]
3530 : :
3531 [ + + # # : 135 : if (sb_base_bdev->state == RAID_SB_BASE_BDEV_CONFIGURED) {
# # ]
3532 [ # # # # ]: 117 : spdk_uuid_copy(&base_info->uuid, &sb_base_bdev->uuid);
3533 [ # # ]: 117 : raid_bdev->num_base_bdevs_operational++;
3534 : 0 : }
3535 : :
3536 [ # # # # : 135 : base_info->data_offset = sb_base_bdev->data_offset;
# # # # ]
3537 [ # # # # : 135 : base_info->data_size = sb_base_bdev->data_size;
# # # # ]
3538 : 0 : }
3539 : :
3540 [ # # ]: 49 : *raid_bdev_out = raid_bdev;
3541 : 49 : return 0;
3542 : 0 : }
3543 : :
3544 : : static void
3545 : 5379 : raid_bdev_examine_no_sb(struct spdk_bdev *bdev)
3546 : : {
3547 : : struct raid_bdev *raid_bdev;
3548 : : struct raid_base_bdev_info *base_info;
3549 : :
3550 [ + + # # : 6294 : TAILQ_FOREACH(raid_bdev, &g_raid_bdev_list, global_link) {
# # # # ]
3551 [ + + - + : 915 : if (raid_bdev->state != RAID_BDEV_STATE_CONFIGURING || raid_bdev->sb != NULL) {
# # # # #
# # # ]
3552 : 809 : continue;
3553 : : }
3554 [ + - # # : 187 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, base_info) {
# # # # #
# # # # #
# # # # ]
3555 [ + + # # : 187 : if (base_info->desc == NULL &&
# # # # ]
3556 [ + + - + : 122 : ((base_info->name != NULL && strcmp(bdev->name, base_info->name) == 0) ||
- + - + +
- # # # #
# # # # ]
3557 [ # # # # ]: 16 : spdk_uuid_compare(&base_info->uuid, &bdev->uuid) == 0)) {
3558 : 106 : raid_bdev_configure_base_bdev(base_info, true, NULL, NULL);
3559 : 106 : break;
3560 : : }
3561 : 0 : }
3562 : 0 : }
3563 : 5379 : }
3564 : :
3565 : : struct raid_bdev_examine_others_ctx {
3566 : : struct spdk_uuid raid_bdev_uuid;
3567 : : uint8_t current_base_bdev_idx;
3568 : : raid_base_bdev_cb cb_fn;
3569 : : void *cb_ctx;
3570 : : };
3571 : :
3572 : : static void
3573 : 49 : raid_bdev_examine_others_done(void *_ctx, int status)
3574 : : {
3575 : 49 : struct raid_bdev_examine_others_ctx *ctx = _ctx;
3576 : :
3577 [ + - # # : 49 : if (ctx->cb_fn != NULL) {
# # ]
3578 [ # # # # : 49 : ctx->cb_fn(ctx->cb_ctx, status);
# # # # #
# # # ]
3579 : 0 : }
3580 : 49 : free(ctx);
3581 : 49 : }
3582 : :
3583 : : typedef void (*raid_bdev_examine_load_sb_cb)(struct spdk_bdev *bdev,
3584 : : const struct raid_bdev_superblock *sb, int status, void *ctx);
3585 : : static int raid_bdev_examine_load_sb(const char *bdev_name, raid_bdev_examine_load_sb_cb cb,
3586 : : void *cb_ctx);
3587 : : static void raid_bdev_examine_sb(const struct raid_bdev_superblock *sb, struct spdk_bdev *bdev,
3588 : : raid_base_bdev_cb cb_fn, void *cb_ctx);
3589 : : static void raid_bdev_examine_others(void *_ctx, int status);
3590 : :
3591 : : static void
3592 : 26 : raid_bdev_examine_others_load_cb(struct spdk_bdev *bdev, const struct raid_bdev_superblock *sb,
3593 : : int status, void *_ctx)
3594 : : {
3595 : 26 : struct raid_bdev_examine_others_ctx *ctx = _ctx;
3596 : :
3597 [ - + ]: 26 : if (status != 0) {
3598 : 0 : raid_bdev_examine_others_done(ctx, status);
3599 : 0 : return;
3600 : : }
3601 : :
3602 : 26 : raid_bdev_examine_sb(sb, bdev, raid_bdev_examine_others, ctx);
3603 : 0 : }
3604 : :
3605 : : static void
3606 : 75 : raid_bdev_examine_others(void *_ctx, int status)
3607 : : {
3608 : 75 : struct raid_bdev_examine_others_ctx *ctx = _ctx;
3609 : : struct raid_bdev *raid_bdev;
3610 : : struct raid_base_bdev_info *base_info;
3611 : 75 : char uuid_str[SPDK_UUID_STRING_LEN];
3612 : :
3613 [ + + - + ]: 75 : if (status != 0 && status != -EEXIST) {
3614 : 0 : goto out;
3615 : : }
3616 : :
3617 [ # # ]: 75 : raid_bdev = raid_bdev_find_by_uuid(&ctx->raid_bdev_uuid);
3618 [ - + ]: 75 : if (raid_bdev == NULL) {
3619 : 0 : status = -ENODEV;
3620 : 0 : goto out;
3621 : : }
3622 : :
3623 [ # # # # : 75 : for (base_info = &raid_bdev->base_bdev_info[ctx->current_base_bdev_idx];
# # # # #
# # # ]
3624 [ + + # # : 210 : base_info < &raid_bdev->base_bdev_info[raid_bdev->num_base_bdevs];
# # # # #
# ]
3625 [ # # ]: 135 : base_info++) {
3626 [ - + + + : 161 : if (base_info->is_configured || spdk_uuid_is_null(&base_info->uuid)) {
+ + # # #
# # # ]
3627 : 95 : continue;
3628 : : }
3629 : :
3630 [ # # ]: 66 : spdk_uuid_fmt_lower(uuid_str, sizeof(uuid_str), &base_info->uuid);
3631 : :
3632 [ + + ]: 66 : if (spdk_bdev_get_by_name(uuid_str) == NULL) {
3633 : 40 : continue;
3634 : : }
3635 : :
3636 [ # # # # ]: 26 : ctx->current_base_bdev_idx = raid_bdev_base_bdev_slot(base_info);
3637 : :
3638 : 26 : status = raid_bdev_examine_load_sb(uuid_str, raid_bdev_examine_others_load_cb, ctx);
3639 [ - + ]: 26 : if (status != 0) {
3640 : 0 : continue;
3641 : : }
3642 : 26 : return;
3643 : 0 : }
3644 : 49 : out:
3645 : 49 : raid_bdev_examine_others_done(ctx, status);
3646 : 0 : }
3647 : :
3648 : : static void
3649 : 149 : raid_bdev_examine_sb(const struct raid_bdev_superblock *sb, struct spdk_bdev *bdev,
3650 : : raid_base_bdev_cb cb_fn, void *cb_ctx)
3651 : : {
3652 : 149 : const struct raid_bdev_sb_base_bdev *sb_base_bdev = NULL;
3653 : 149 : struct raid_bdev *raid_bdev;
3654 : : struct raid_base_bdev_info *iter, *base_info;
3655 : : uint8_t i;
3656 : : int rc;
3657 : :
3658 [ - + # # : 149 : if (sb->block_size != spdk_bdev_get_data_block_size(bdev)) {
# # ]
3659 [ # # # # : 0 : SPDK_WARNLOG("Bdev %s block size (%u) does not match the value in superblock (%u)\n",
# # # # ]
3660 : : bdev->name, sb->block_size, spdk_bdev_get_data_block_size(bdev));
3661 : 0 : rc = -EINVAL;
3662 : 0 : goto out;
3663 : : }
3664 : :
3665 [ - + # # ]: 149 : if (spdk_uuid_is_null(&sb->uuid)) {
3666 [ # # # # ]: 0 : SPDK_WARNLOG("NULL raid bdev UUID in superblock on bdev %s\n", bdev->name);
3667 : 0 : rc = -EINVAL;
3668 : 0 : goto out;
3669 : : }
3670 : :
3671 [ # # ]: 149 : raid_bdev = raid_bdev_find_by_uuid(&sb->uuid);
3672 : :
3673 [ + + ]: 149 : if (raid_bdev) {
3674 [ + + # # : 108 : if (sb->seq_number > raid_bdev->sb->seq_number) {
# # # # #
# # # #
# ]
3675 [ - + + - : 8 : SPDK_DEBUGLOG(bdev_raid,
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
3676 : : "raid superblock seq_number on bdev %s (%lu) greater than existing raid bdev %s (%lu)\n",
3677 : : bdev->name, sb->seq_number, raid_bdev->bdev.name, raid_bdev->sb->seq_number);
3678 : :
3679 [ - + # # : 8 : if (raid_bdev->state != RAID_BDEV_STATE_CONFIGURING) {
# # ]
3680 [ # # # # : 0 : SPDK_WARNLOG("Newer version of raid bdev %s superblock found on bdev %s but raid bdev is not in configuring state.\n",
# # # # #
# ]
3681 : : raid_bdev->bdev.name, bdev->name);
3682 : 0 : rc = -EBUSY;
3683 : 0 : goto out;
3684 : : }
3685 : :
3686 : : /* remove and then recreate the raid bdev using the newer superblock */
3687 : 8 : raid_bdev_delete(raid_bdev, NULL, NULL);
3688 : 8 : raid_bdev = NULL;
3689 [ + + # # : 100 : } else if (sb->seq_number < raid_bdev->sb->seq_number) {
# # # # #
# # # #
# ]
3690 [ - + + - : 38 : SPDK_DEBUGLOG(bdev_raid,
# # # # #
# # # # #
# # # # #
# # # # #
# # # # ]
3691 : : "raid superblock seq_number on bdev %s (%lu) smaller than existing raid bdev %s (%lu)\n",
3692 : : bdev->name, sb->seq_number, raid_bdev->bdev.name, raid_bdev->sb->seq_number);
3693 : : /* use the current raid bdev superblock */
3694 [ # # # # ]: 38 : sb = raid_bdev->sb;
3695 : 0 : }
3696 : 0 : }
3697 : :
3698 [ + + # # : 321 : for (i = 0; i < sb->base_bdevs_size; i++) {
# # ]
3699 [ # # # # ]: 303 : sb_base_bdev = &sb->base_bdevs[i];
3700 : :
3701 [ - + # # : 303 : assert(spdk_uuid_is_null(&sb_base_bdev->uuid) == false);
# # ]
3702 : :
3703 [ + + # # ]: 303 : if (spdk_uuid_compare(&sb_base_bdev->uuid, spdk_bdev_get_uuid(bdev)) == 0) {
3704 : 131 : break;
3705 : : }
3706 : 0 : }
3707 : :
3708 [ + + # # : 149 : if (i == sb->base_bdevs_size) {
# # ]
3709 [ - + + - : 18 : SPDK_DEBUGLOG(bdev_raid, "raid superblock does not contain this bdev's uuid\n");
# # ]
3710 : 18 : rc = -EINVAL;
3711 : 18 : goto out;
3712 : : }
3713 : :
3714 [ + + ]: 131 : if (!raid_bdev) {
3715 : : struct raid_bdev_examine_others_ctx *ctx;
3716 : :
3717 : 49 : ctx = calloc(1, sizeof(*ctx));
3718 [ - + ]: 49 : if (ctx == NULL) {
3719 : 0 : rc = -ENOMEM;
3720 : 0 : goto out;
3721 : : }
3722 : :
3723 : 49 : rc = raid_bdev_create_from_sb(sb, &raid_bdev);
3724 [ - + ]: 49 : if (rc != 0) {
3725 [ # # # # ]: 0 : SPDK_ERRLOG("Failed to create raid bdev %s: %s\n",
3726 : : sb->name, spdk_strerror(-rc));
3727 : 0 : free(ctx);
3728 : 0 : goto out;
3729 : : }
3730 : :
3731 : : /* after this base bdev is configured, examine other base bdevs that may be present */
3732 [ # # # # ]: 49 : spdk_uuid_copy(&ctx->raid_bdev_uuid, &sb->uuid);
3733 [ # # # # ]: 49 : ctx->cb_fn = cb_fn;
3734 [ # # # # ]: 49 : ctx->cb_ctx = cb_ctx;
3735 : :
3736 : 49 : cb_fn = raid_bdev_examine_others;
3737 : 49 : cb_ctx = ctx;
3738 : 0 : }
3739 : :
3740 [ + + # # : 131 : if (raid_bdev->state == RAID_BDEV_STATE_ONLINE) {
# # ]
3741 [ - + # # : 18 : assert(sb_base_bdev->slot < raid_bdev->num_base_bdevs);
# # # # #
# # # ]
3742 [ # # # # : 18 : base_info = &raid_bdev->base_bdev_info[sb_base_bdev->slot];
# # # # #
# ]
3743 [ - + - + : 18 : assert(base_info->is_configured == false);
# # # # #
# ]
3744 [ - + - - : 18 : assert(sb_base_bdev->state == RAID_SB_BASE_BDEV_MISSING ||
# # # # #
# # # #
# ]
3745 : : sb_base_bdev->state == RAID_SB_BASE_BDEV_FAILED);
3746 [ - + # # : 18 : assert(spdk_uuid_is_null(&base_info->uuid));
# # ]
3747 [ # # # # ]: 18 : spdk_uuid_copy(&base_info->uuid, &sb_base_bdev->uuid);
3748 [ # # # # : 18 : SPDK_NOTICELOG("Re-adding bdev %s to raid bdev %s.\n", bdev->name, raid_bdev->bdev.name);
# # # # #
# ]
3749 : 18 : rc = raid_bdev_configure_base_bdev(base_info, true, cb_fn, cb_ctx);
3750 [ - + ]: 18 : if (rc != 0) {
3751 [ # # # # : 0 : SPDK_ERRLOG("Failed to configure bdev %s as base bdev of raid %s: %s\n",
# # # # #
# # # ]
3752 : : bdev->name, raid_bdev->bdev.name, spdk_strerror(-rc));
3753 : 0 : }
3754 : 18 : goto out;
3755 : : }
3756 : :
3757 [ - + # # : 113 : if (sb_base_bdev->state != RAID_SB_BASE_BDEV_CONFIGURED) {
# # ]
3758 [ # # # # : 0 : SPDK_NOTICELOG("Bdev %s is not an active member of raid bdev %s. Ignoring.\n",
# # # # #
# ]
3759 : : bdev->name, raid_bdev->bdev.name);
3760 : 0 : rc = -EINVAL;
3761 : 0 : goto out;
3762 : : }
3763 : :
3764 : 113 : base_info = NULL;
3765 [ + - # # : 235 : RAID_FOR_EACH_BASE_BDEV(raid_bdev, iter) {
# # # # #
# # # # #
# # # # ]
3766 [ + + # # ]: 235 : if (spdk_uuid_compare(&iter->uuid, spdk_bdev_get_uuid(bdev)) == 0) {
3767 : 113 : base_info = iter;
3768 : 113 : break;
3769 : : }
3770 : 0 : }
3771 : :
3772 [ - + ]: 113 : if (base_info == NULL) {
3773 [ # # # # : 0 : SPDK_ERRLOG("Bdev %s is not a member of raid bdev %s\n",
# # # # #
# ]
3774 : : bdev->name, raid_bdev->bdev.name);
3775 : 0 : rc = -EINVAL;
3776 : 0 : goto out;
3777 : : }
3778 : :
3779 [ - + + + : 113 : if (base_info->is_configured) {
# # # # ]
3780 : 2 : rc = -EEXIST;
3781 : 2 : goto out;
3782 : : }
3783 : :
3784 : 111 : rc = raid_bdev_configure_base_bdev(base_info, true, cb_fn, cb_ctx);
3785 [ + - ]: 111 : if (rc != 0) {
3786 [ # # # # : 0 : SPDK_ERRLOG("Failed to configure bdev %s as base bdev of raid %s: %s\n",
# # # # #
# # # ]
3787 : : bdev->name, raid_bdev->bdev.name, spdk_strerror(-rc));
3788 : 0 : }
3789 : 149 : out:
3790 [ + + + - ]: 149 : if (rc != 0 && cb_fn != 0) {
3791 [ # # # # ]: 20 : cb_fn(cb_ctx, rc);
3792 : 0 : }
3793 : 149 : }
3794 : :
3795 : : struct raid_bdev_examine_ctx {
3796 : : struct spdk_bdev_desc *desc;
3797 : : struct spdk_io_channel *ch;
3798 : : raid_bdev_examine_load_sb_cb cb;
3799 : : void *cb_ctx;
3800 : : };
3801 : :
3802 : : static void
3803 : 5480 : raid_bdev_examine_ctx_free(struct raid_bdev_examine_ctx *ctx)
3804 : : {
3805 [ + + ]: 5480 : if (!ctx) {
3806 : 0 : return;
3807 : : }
3808 : :
3809 [ + - + - : 5480 : if (ctx->ch) {
- + ]
3810 [ + - + - ]: 5480 : spdk_put_io_channel(ctx->ch);
3811 : 47 : }
3812 : :
3813 [ + - + - : 5480 : if (ctx->desc) {
- + ]
3814 [ + - + - ]: 5480 : spdk_bdev_close(ctx->desc);
3815 : 47 : }
3816 : :
3817 : 5480 : free(ctx);
3818 : 47 : }
3819 : :
3820 : : static void
3821 : 5480 : raid_bdev_examine_load_sb_done(const struct raid_bdev_superblock *sb, int status, void *_ctx)
3822 : : {
3823 : 5480 : struct raid_bdev_examine_ctx *ctx = _ctx;
3824 [ + - + - ]: 5480 : struct spdk_bdev *bdev = spdk_bdev_desc_get_bdev(ctx->desc);
3825 : :
3826 [ + - + - : 5480 : ctx->cb(bdev, sb, status, ctx->cb_ctx);
- + + - +
- + - ]
3827 : :
3828 : 5480 : raid_bdev_examine_ctx_free(ctx);
3829 : 5480 : }
3830 : :
3831 : : static void
3832 : 0 : raid_bdev_examine_event_cb(enum spdk_bdev_event_type type, struct spdk_bdev *bdev, void *event_ctx)
3833 : : {
3834 : 0 : }
3835 : :
3836 : : static int
3837 : 5480 : raid_bdev_examine_load_sb(const char *bdev_name, raid_bdev_examine_load_sb_cb cb, void *cb_ctx)
3838 : : {
3839 : : struct raid_bdev_examine_ctx *ctx;
3840 : : int rc;
3841 : :
3842 [ + + # # ]: 5480 : assert(cb != NULL);
3843 : :
3844 : 5480 : ctx = calloc(1, sizeof(*ctx));
3845 [ + + ]: 5480 : if (!ctx) {
3846 : 0 : return -ENOMEM;
3847 : : }
3848 : :
3849 [ + - ]: 5480 : rc = spdk_bdev_open_ext(bdev_name, false, raid_bdev_examine_event_cb, NULL, &ctx->desc);
3850 [ - + ]: 5480 : if (rc) {
3851 [ # # ]: 0 : SPDK_ERRLOG("Failed to open bdev %s: %s\n", bdev_name, spdk_strerror(-rc));
3852 : 0 : goto err;
3853 : : }
3854 : :
3855 [ + - + - : 5480 : ctx->ch = spdk_bdev_get_io_channel(ctx->desc);
+ - + - ]
3856 [ + + + - : 5480 : if (!ctx->ch) {
+ - ]
3857 : 0 : SPDK_ERRLOG("Failed to get io channel for bdev %s\n", bdev_name);
3858 : 0 : rc = -ENOMEM;
3859 : 0 : goto err;
3860 : : }
3861 : :
3862 [ + - + - ]: 5480 : ctx->cb = cb;
3863 [ + - + - ]: 5480 : ctx->cb_ctx = cb_ctx;
3864 : :
3865 [ + - + - : 5480 : rc = raid_bdev_load_base_bdev_superblock(ctx->desc, ctx->ch, raid_bdev_examine_load_sb_done, ctx);
+ - + - ]
3866 [ - + ]: 5480 : if (rc) {
3867 [ # # ]: 0 : SPDK_ERRLOG("Failed to read bdev %s superblock: %s\n",
3868 : : bdev_name, spdk_strerror(-rc));
3869 : 0 : goto err;
3870 : : }
3871 : :
3872 : 5480 : return 0;
3873 : 0 : err:
3874 : 0 : raid_bdev_examine_ctx_free(ctx);
3875 : 0 : return rc;
3876 : 47 : }
3877 : :
3878 : : static void
3879 : 5484 : raid_bdev_examine_done(void *ctx, int status)
3880 : : {
3881 : 5484 : struct spdk_bdev *bdev = ctx;
3882 : :
3883 [ + + ]: 5484 : if (status != 0) {
3884 [ # # # # : 11 : SPDK_ERRLOG("Failed to examine bdev %s: %s\n",
# # ]
3885 : : bdev->name, spdk_strerror(-status));
3886 : 0 : }
3887 : 5484 : spdk_bdev_module_examine_done(&g_raid_if);
3888 : 5484 : }
3889 : :
3890 : : static void
3891 : 5454 : raid_bdev_examine_cont(struct spdk_bdev *bdev, const struct raid_bdev_superblock *sb, int status,
3892 : : void *ctx)
3893 : : {
3894 [ + + + ]: 5454 : switch (status) {
3895 : 105 : case 0:
3896 : : /* valid superblock found */
3897 [ - + + - : 105 : SPDK_DEBUGLOG(bdev_raid, "raid superblock found on bdev %s\n", bdev->name);
# # # # #
# ]
3898 : 105 : raid_bdev_examine_sb(sb, bdev, raid_bdev_examine_done, bdev);
3899 : 105 : return;
3900 : 5302 : case -EINVAL:
3901 : : /* no valid superblock, check if it can be claimed anyway */
3902 : 5349 : raid_bdev_examine_no_sb(bdev);
3903 : 5349 : status = 0;
3904 : 5349 : break;
3905 : : }
3906 : :
3907 : 5349 : raid_bdev_examine_done(bdev, status);
3908 : 47 : }
3909 : :
3910 : : /*
3911 : : * brief:
3912 : : * raid_bdev_examine function is the examine function call by the below layers
3913 : : * like bdev_nvme layer. This function will check if this base bdev can be
3914 : : * claimed by this raid bdev or not.
3915 : : * params:
3916 : : * bdev - pointer to base bdev
3917 : : * returns:
3918 : : * none
3919 : : */
3920 : : static void
3921 : 5484 : raid_bdev_examine(struct spdk_bdev *bdev)
3922 : : {
3923 : 5484 : int rc = 0;
3924 : :
3925 [ - + ]: 5484 : if (raid_bdev_find_base_info_by_bdev(bdev) != NULL) {
3926 : 0 : goto done;
3927 : : }
3928 : :
3929 [ + + ]: 5484 : if (spdk_bdev_get_dif_type(bdev) != SPDK_DIF_DISABLE) {
3930 : 30 : raid_bdev_examine_no_sb(bdev);
3931 : 30 : goto done;
3932 : : }
3933 : :
3934 [ + - + - ]: 5454 : rc = raid_bdev_examine_load_sb(bdev->name, raid_bdev_examine_cont, NULL);
3935 [ - + ]: 5454 : if (rc != 0) {
3936 : 0 : goto done;
3937 : : }
3938 : :
3939 : 5454 : return;
3940 : 30 : done:
3941 : 30 : raid_bdev_examine_done(bdev, rc);
3942 : 47 : }
3943 : :
3944 : : /* Log component for bdev raid bdev module */
3945 : 2122 : SPDK_LOG_REGISTER_COMPONENT(bdev_raid)
3946 : :
3947 : : static void
3948 : 1959 : bdev_raid_trace(void)
3949 : : {
3950 : 1959 : struct spdk_trace_tpoint_opts opts[] = {
3951 : : {
3952 : : "BDEV_RAID_IO_START", TRACE_BDEV_RAID_IO_START,
3953 : : OWNER_TYPE_NONE, OBJECT_BDEV_RAID_IO, 1,
3954 : : {{ "ctx", SPDK_TRACE_ARG_TYPE_PTR, 8 }}
3955 : : },
3956 : : {
3957 : : "BDEV_RAID_IO_DONE", TRACE_BDEV_RAID_IO_DONE,
3958 : : OWNER_TYPE_NONE, OBJECT_BDEV_RAID_IO, 0,
3959 : : {{ "ctx", SPDK_TRACE_ARG_TYPE_PTR, 8 }}
3960 : : }
3961 : : };
3962 : :
3963 : :
3964 : 1959 : spdk_trace_register_object(OBJECT_BDEV_RAID_IO, 'R');
3965 : 1959 : spdk_trace_register_description_ext(opts, SPDK_COUNTOF(opts));
3966 : 1959 : spdk_trace_tpoint_register_relation(TRACE_BDEV_IO_START, OBJECT_BDEV_RAID_IO, 1);
3967 : 1959 : spdk_trace_tpoint_register_relation(TRACE_BDEV_IO_DONE, OBJECT_BDEV_RAID_IO, 0);
3968 : 1959 : }
3969 : 2122 : SPDK_TRACE_REGISTER_FN(bdev_raid_trace, "bdev_raid", TRACE_GROUP_BDEV_RAID)
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