Commit | Line | Data |
---|---|---|
fc5c0345 DG |
1 | /* |
2 | * rbd engine | |
3 | * | |
4 | * IO engine using Ceph's librbd to test RADOS Block Devices. | |
5 | * | |
6 | */ | |
7 | ||
8 | #include <rbd/librbd.h> | |
9 | ||
10 | #include "../fio.h" | |
d220c761 | 11 | #include "../optgroup.h" |
fc5c0345 | 12 | |
53b6c979 PL |
13 | #ifdef CONFIG_RBD_POLL |
14 | /* add for poll */ | |
15 | #include <poll.h> | |
16 | #include <sys/eventfd.h> | |
17 | #endif | |
18 | ||
fc5c0345 DG |
19 | struct fio_rbd_iou { |
20 | struct io_u *io_u; | |
d8b64af2 | 21 | rbd_completion_t completion; |
d8b64af2 | 22 | int io_seen; |
b8ecbef6 | 23 | int io_complete; |
fc5c0345 DG |
24 | }; |
25 | ||
26 | struct rbd_data { | |
27 | rados_t cluster; | |
28 | rados_ioctx_t io_ctx; | |
29 | rbd_image_t image; | |
30 | struct io_u **aio_events; | |
6f9961ac | 31 | struct io_u **sort_events; |
53b6c979 | 32 | int fd; /* add for poll */ |
e0f35b53 | 33 | bool connected; |
fc5c0345 DG |
34 | }; |
35 | ||
36 | struct rbd_options { | |
a1f871c7 | 37 | void *pad; |
6e20c6e7 | 38 | char *cluster_name; |
fc5c0345 DG |
39 | char *rbd_name; |
40 | char *pool_name; | |
41 | char *client_name; | |
d7d702c7 | 42 | int busy_poll; |
fc5c0345 DG |
43 | }; |
44 | ||
45 | static struct fio_option options[] = { | |
6e20c6e7 T |
46 | { |
47 | .name = "clustername", | |
48 | .lname = "ceph cluster name", | |
49 | .type = FIO_OPT_STR_STORE, | |
50 | .help = "Cluster name for ceph", | |
51 | .off1 = offsetof(struct rbd_options, cluster_name), | |
52 | .category = FIO_OPT_C_ENGINE, | |
53 | .group = FIO_OPT_G_RBD, | |
54 | }, | |
fc5c0345 | 55 | { |
d8b64af2 JA |
56 | .name = "rbdname", |
57 | .lname = "rbd engine rbdname", | |
58 | .type = FIO_OPT_STR_STORE, | |
59 | .help = "RBD name for RBD engine", | |
60 | .off1 = offsetof(struct rbd_options, rbd_name), | |
61 | .category = FIO_OPT_C_ENGINE, | |
62 | .group = FIO_OPT_G_RBD, | |
63 | }, | |
fc5c0345 | 64 | { |
d7d702c7 JA |
65 | .name = "pool", |
66 | .lname = "rbd engine pool", | |
67 | .type = FIO_OPT_STR_STORE, | |
68 | .help = "Name of the pool hosting the RBD for the RBD engine", | |
69 | .off1 = offsetof(struct rbd_options, pool_name), | |
70 | .category = FIO_OPT_C_ENGINE, | |
71 | .group = FIO_OPT_G_RBD, | |
d8b64af2 | 72 | }, |
fc5c0345 | 73 | { |
d7d702c7 JA |
74 | .name = "clientname", |
75 | .lname = "rbd engine clientname", | |
76 | .type = FIO_OPT_STR_STORE, | |
77 | .help = "Name of the ceph client to access the RBD for the RBD engine", | |
78 | .off1 = offsetof(struct rbd_options, client_name), | |
79 | .category = FIO_OPT_C_ENGINE, | |
80 | .group = FIO_OPT_G_RBD, | |
81 | }, | |
82 | { | |
83 | .name = "busy_poll", | |
84 | .lname = "Busy poll", | |
85 | .type = FIO_OPT_BOOL, | |
86 | .help = "Busy poll for completions instead of sleeping", | |
fea585d4 | 87 | .off1 = offsetof(struct rbd_options, busy_poll), |
d7d702c7 JA |
88 | .def = "0", |
89 | .category = FIO_OPT_C_ENGINE, | |
90 | .group = FIO_OPT_G_RBD, | |
d8b64af2 | 91 | }, |
fc5c0345 | 92 | { |
d8b64af2 JA |
93 | .name = NULL, |
94 | }, | |
fc5c0345 DG |
95 | }; |
96 | ||
97 | static int _fio_setup_rbd_data(struct thread_data *td, | |
98 | struct rbd_data **rbd_data_ptr) | |
99 | { | |
6f9961ac | 100 | struct rbd_data *rbd; |
fc5c0345 | 101 | |
565e784d | 102 | if (td->io_ops_data) |
fc5c0345 DG |
103 | return 0; |
104 | ||
6f9961ac JA |
105 | rbd = calloc(1, sizeof(struct rbd_data)); |
106 | if (!rbd) | |
fc5c0345 DG |
107 | goto failed; |
108 | ||
e0f35b53 PL |
109 | rbd->connected = false; |
110 | ||
53b6c979 PL |
111 | /* add for poll, init fd: -1 */ |
112 | rbd->fd = -1; | |
53b6c979 | 113 | |
6f9961ac JA |
114 | rbd->aio_events = calloc(td->o.iodepth, sizeof(struct io_u *)); |
115 | if (!rbd->aio_events) | |
fc5c0345 DG |
116 | goto failed; |
117 | ||
6f9961ac JA |
118 | rbd->sort_events = calloc(td->o.iodepth, sizeof(struct io_u *)); |
119 | if (!rbd->sort_events) | |
120 | goto failed; | |
fc5c0345 | 121 | |
6f9961ac | 122 | *rbd_data_ptr = rbd; |
fc5c0345 DG |
123 | return 0; |
124 | ||
125 | failed: | |
5a4adfd2 JQ |
126 | if (rbd) { |
127 | if (rbd->aio_events) | |
128 | free(rbd->aio_events); | |
129 | if (rbd->sort_events) | |
130 | free(rbd->sort_events); | |
6f9961ac | 131 | free(rbd); |
5a4adfd2 | 132 | } |
fc5c0345 DG |
133 | return 1; |
134 | ||
135 | } | |
136 | ||
73ae55c3 JA |
137 | #ifdef CONFIG_RBD_POLL |
138 | static bool _fio_rbd_setup_poll(struct rbd_data *rbd) | |
139 | { | |
140 | int r; | |
141 | ||
142 | /* add for rbd poll */ | |
4001b1ba | 143 | rbd->fd = eventfd(0, EFD_SEMAPHORE); |
73ae55c3 JA |
144 | if (rbd->fd < 0) { |
145 | log_err("eventfd failed.\n"); | |
146 | return false; | |
147 | } | |
148 | ||
149 | r = rbd_set_image_notification(rbd->image, rbd->fd, EVENT_TYPE_EVENTFD); | |
150 | if (r < 0) { | |
151 | log_err("rbd_set_image_notification failed.\n"); | |
152 | close(rbd->fd); | |
153 | rbd->fd = -1; | |
154 | return false; | |
155 | } | |
156 | ||
157 | return true; | |
158 | } | |
159 | #else | |
160 | static bool _fio_rbd_setup_poll(struct rbd_data *rbd) | |
161 | { | |
162 | return true; | |
163 | } | |
164 | #endif | |
165 | ||
fc5c0345 DG |
166 | static int _fio_rbd_connect(struct thread_data *td) |
167 | { | |
565e784d | 168 | struct rbd_data *rbd = td->io_ops_data; |
fc5c0345 DG |
169 | struct rbd_options *o = td->eo; |
170 | int r; | |
171 | ||
6e20c6e7 T |
172 | if (o->cluster_name) { |
173 | char *client_name = NULL; | |
174 | ||
175 | /* | |
89e5ec96 | 176 | * If we specify cluser name, the rados_create2 |
6e20c6e7 T |
177 | * will not assume 'client.'. name is considered |
178 | * as a full type.id namestr | |
179 | */ | |
89e5ec96 JQ |
180 | if (o->client_name) { |
181 | if (!index(o->client_name, '.')) { | |
182 | client_name = calloc(1, strlen("client.") + | |
183 | strlen(o->client_name) + 1); | |
184 | strcat(client_name, "client."); | |
6ec0dcd1 JQ |
185 | strcat(client_name, o->client_name); |
186 | } else { | |
187 | client_name = o->client_name; | |
89e5ec96 | 188 | } |
6e20c6e7 | 189 | } |
6ec0dcd1 | 190 | |
6e20c6e7 | 191 | r = rados_create2(&rbd->cluster, o->cluster_name, |
6ec0dcd1 JQ |
192 | client_name, 0); |
193 | ||
194 | if (client_name && !index(o->client_name, '.')) | |
195 | free(client_name); | |
6e20c6e7 T |
196 | } else |
197 | r = rados_create(&rbd->cluster, o->client_name); | |
198 | ||
fc5c0345 DG |
199 | if (r < 0) { |
200 | log_err("rados_create failed.\n"); | |
201 | goto failed_early; | |
202 | } | |
de8f8675 DM |
203 | if (o->pool_name == NULL) { |
204 | log_err("rbd pool name must be provided.\n"); | |
205 | goto failed_early; | |
206 | } | |
207 | if (!o->rbd_name) { | |
208 | log_err("rbdname must be provided.\n"); | |
209 | goto failed_early; | |
210 | } | |
fc5c0345 | 211 | |
6f9961ac | 212 | r = rados_conf_read_file(rbd->cluster, NULL); |
fc5c0345 DG |
213 | if (r < 0) { |
214 | log_err("rados_conf_read_file failed.\n"); | |
215 | goto failed_early; | |
216 | } | |
217 | ||
6f9961ac | 218 | r = rados_connect(rbd->cluster); |
fc5c0345 DG |
219 | if (r < 0) { |
220 | log_err("rados_connect failed.\n"); | |
221 | goto failed_shutdown; | |
222 | } | |
223 | ||
6f9961ac | 224 | r = rados_ioctx_create(rbd->cluster, o->pool_name, &rbd->io_ctx); |
fc5c0345 DG |
225 | if (r < 0) { |
226 | log_err("rados_ioctx_create failed.\n"); | |
227 | goto failed_shutdown; | |
228 | } | |
229 | ||
ee584d96 JD |
230 | if (td->o.odirect) { |
231 | r = rados_conf_set(rbd->cluster, "rbd_cache", "false"); | |
232 | if (r < 0) { | |
233 | log_info("failed to disable RBD in-memory cache\n"); | |
234 | } | |
235 | } | |
236 | ||
6f9961ac | 237 | r = rbd_open(rbd->io_ctx, o->rbd_name, &rbd->image, NULL /*snap */ ); |
fc5c0345 DG |
238 | if (r < 0) { |
239 | log_err("rbd_open failed.\n"); | |
240 | goto failed_open; | |
241 | } | |
53b6c979 | 242 | |
73ae55c3 JA |
243 | if (!_fio_rbd_setup_poll(rbd)) |
244 | goto failed_poll; | |
53b6c979 | 245 | |
fc5c0345 DG |
246 | return 0; |
247 | ||
73ae55c3 JA |
248 | failed_poll: |
249 | rbd_close(rbd->image); | |
250 | rbd->image = NULL; | |
fc5c0345 | 251 | failed_open: |
6f9961ac JA |
252 | rados_ioctx_destroy(rbd->io_ctx); |
253 | rbd->io_ctx = NULL; | |
fc5c0345 | 254 | failed_shutdown: |
6f9961ac JA |
255 | rados_shutdown(rbd->cluster); |
256 | rbd->cluster = NULL; | |
fc5c0345 DG |
257 | failed_early: |
258 | return 1; | |
259 | } | |
260 | ||
6f9961ac | 261 | static void _fio_rbd_disconnect(struct rbd_data *rbd) |
fc5c0345 | 262 | { |
6f9961ac | 263 | if (!rbd) |
fc5c0345 DG |
264 | return; |
265 | ||
53b6c979 | 266 | /* close eventfd */ |
73ae55c3 | 267 | if (rbd->fd != -1) { |
53b6c979 PL |
268 | close(rbd->fd); |
269 | rbd->fd = -1; | |
270 | } | |
53b6c979 | 271 | |
fc5c0345 | 272 | /* shutdown everything */ |
6f9961ac JA |
273 | if (rbd->image) { |
274 | rbd_close(rbd->image); | |
275 | rbd->image = NULL; | |
fc5c0345 DG |
276 | } |
277 | ||
6f9961ac JA |
278 | if (rbd->io_ctx) { |
279 | rados_ioctx_destroy(rbd->io_ctx); | |
280 | rbd->io_ctx = NULL; | |
fc5c0345 DG |
281 | } |
282 | ||
6f9961ac JA |
283 | if (rbd->cluster) { |
284 | rados_shutdown(rbd->cluster); | |
285 | rbd->cluster = NULL; | |
fc5c0345 DG |
286 | } |
287 | } | |
288 | ||
d8b64af2 | 289 | static void _fio_rbd_finish_aiocb(rbd_completion_t comp, void *data) |
fc5c0345 | 290 | { |
dbf388d2 JA |
291 | struct fio_rbd_iou *fri = data; |
292 | struct io_u *io_u = fri->io_u; | |
d8b64af2 | 293 | ssize_t ret; |
fc5c0345 | 294 | |
d8b64af2 JA |
295 | /* |
296 | * Looks like return value is 0 for success, or < 0 for | |
297 | * a specific error. So we have to assume that it can't do | |
298 | * partial completions. | |
299 | */ | |
300 | ret = rbd_aio_get_return_value(fri->completion); | |
301 | if (ret < 0) { | |
d7658ced | 302 | io_u->error = -ret; |
d8b64af2 JA |
303 | io_u->resid = io_u->xfer_buflen; |
304 | } else | |
305 | io_u->error = 0; | |
20cf5aab JD |
306 | |
307 | fri->io_complete = 1; | |
d8b64af2 | 308 | } |
fc5c0345 | 309 | |
d8b64af2 JA |
310 | static struct io_u *fio_rbd_event(struct thread_data *td, int event) |
311 | { | |
565e784d | 312 | struct rbd_data *rbd = td->io_ops_data; |
fc5c0345 | 313 | |
6f9961ac | 314 | return rbd->aio_events[event]; |
fc5c0345 DG |
315 | } |
316 | ||
6f9961ac | 317 | static inline int fri_check_complete(struct rbd_data *rbd, struct io_u *io_u, |
d8b64af2 | 318 | unsigned int *events) |
fc5c0345 | 319 | { |
d8b64af2 | 320 | struct fio_rbd_iou *fri = io_u->engine_data; |
fc5c0345 | 321 | |
b8ecbef6 | 322 | if (fri->io_complete) { |
d8b64af2 | 323 | fri->io_seen = 1; |
6f9961ac | 324 | rbd->aio_events[*events] = io_u; |
d8b64af2 | 325 | (*events)++; |
fc5c0345 | 326 | |
d8b64af2 JA |
327 | rbd_aio_release(fri->completion); |
328 | return 1; | |
329 | } | |
fc5c0345 | 330 | |
d8b64af2 | 331 | return 0; |
fc5c0345 DG |
332 | } |
333 | ||
c7cc1c75 | 334 | #ifndef CONFIG_RBD_POLL |
6f9961ac JA |
335 | static inline int rbd_io_u_seen(struct io_u *io_u) |
336 | { | |
337 | struct fio_rbd_iou *fri = io_u->engine_data; | |
338 | ||
339 | return fri->io_seen; | |
340 | } | |
c7cc1c75 | 341 | #endif |
6f9961ac JA |
342 | |
343 | static void rbd_io_u_wait_complete(struct io_u *io_u) | |
344 | { | |
345 | struct fio_rbd_iou *fri = io_u->engine_data; | |
346 | ||
347 | rbd_aio_wait_for_complete(fri->completion); | |
348 | } | |
349 | ||
350 | static int rbd_io_u_cmp(const void *p1, const void *p2) | |
351 | { | |
352 | const struct io_u **a = (const struct io_u **) p1; | |
353 | const struct io_u **b = (const struct io_u **) p2; | |
354 | uint64_t at, bt; | |
355 | ||
356 | at = utime_since_now(&(*a)->start_time); | |
357 | bt = utime_since_now(&(*b)->start_time); | |
358 | ||
359 | if (at < bt) | |
360 | return -1; | |
361 | else if (at == bt) | |
362 | return 0; | |
363 | else | |
364 | return 1; | |
365 | } | |
366 | ||
d8b64af2 JA |
367 | static int rbd_iter_events(struct thread_data *td, unsigned int *events, |
368 | unsigned int min_evts, int wait) | |
82340a9f | 369 | { |
565e784d | 370 | struct rbd_data *rbd = td->io_ops_data; |
d8b64af2 JA |
371 | unsigned int this_events = 0; |
372 | struct io_u *io_u; | |
53b6c979 PL |
373 | int i, sidx = 0; |
374 | ||
375 | #ifdef CONFIG_RBD_POLL | |
376 | int ret = 0; | |
377 | int event_num = 0; | |
378 | struct fio_rbd_iou *fri = NULL; | |
379 | rbd_completion_t comps[min_evts]; | |
4001b1ba JD |
380 | uint64_t counter; |
381 | bool completed; | |
82340a9f | 382 | |
53b6c979 PL |
383 | struct pollfd pfd; |
384 | pfd.fd = rbd->fd; | |
385 | pfd.events = POLLIN; | |
386 | ||
4001b1ba | 387 | ret = poll(&pfd, 1, wait ? -1 : 0); |
73ae55c3 | 388 | if (ret <= 0) |
53b6c979 | 389 | return 0; |
4001b1ba JD |
390 | if (!(pfd.revents & POLLIN)) |
391 | return 0; | |
53b6c979 PL |
392 | |
393 | event_num = rbd_poll_io_events(rbd->image, comps, min_evts); | |
394 | ||
395 | for (i = 0; i < event_num; i++) { | |
396 | fri = rbd_aio_get_arg(comps[i]); | |
397 | io_u = fri->io_u; | |
4001b1ba JD |
398 | |
399 | /* best effort to decrement the semaphore */ | |
400 | ret = read(rbd->fd, &counter, sizeof(counter)); | |
401 | if (ret <= 0) | |
402 | log_err("rbd_iter_events failed to decrement semaphore.\n"); | |
403 | ||
404 | completed = fri_check_complete(rbd, io_u, events); | |
405 | assert(completed); | |
406 | ||
407 | this_events++; | |
408 | } | |
53b6c979 | 409 | #else |
d8b64af2 | 410 | io_u_qiter(&td->io_u_all, io_u, i) { |
d8b64af2 JA |
411 | if (!(io_u->flags & IO_U_F_FLIGHT)) |
412 | continue; | |
6f9961ac | 413 | if (rbd_io_u_seen(io_u)) |
d8b64af2 | 414 | continue; |
82340a9f | 415 | |
6f9961ac | 416 | if (fri_check_complete(rbd, io_u, events)) |
d8b64af2 | 417 | this_events++; |
6f9961ac JA |
418 | else if (wait) |
419 | rbd->sort_events[sidx++] = io_u; | |
420 | } | |
4001b1ba | 421 | #endif |
82340a9f | 422 | |
6f9961ac JA |
423 | if (!wait || !sidx) |
424 | return this_events; | |
425 | ||
426 | /* | |
427 | * Sort events, oldest issue first, then wait on as many as we | |
428 | * need in order of age. If we have enough events, stop waiting, | |
429 | * and just check if any of the older ones are done. | |
430 | */ | |
431 | if (sidx > 1) | |
432 | qsort(rbd->sort_events, sidx, sizeof(struct io_u *), rbd_io_u_cmp); | |
433 | ||
434 | for (i = 0; i < sidx; i++) { | |
435 | io_u = rbd->sort_events[i]; | |
436 | ||
437 | if (fri_check_complete(rbd, io_u, events)) { | |
438 | this_events++; | |
439 | continue; | |
d8b64af2 | 440 | } |
6f9961ac JA |
441 | |
442 | /* | |
443 | * Stop waiting when we have enough, but continue checking | |
444 | * all pending IOs if they are complete. | |
445 | */ | |
d8b64af2 | 446 | if (*events >= min_evts) |
6f9961ac JA |
447 | continue; |
448 | ||
449 | rbd_io_u_wait_complete(io_u); | |
450 | ||
451 | if (fri_check_complete(rbd, io_u, events)) | |
452 | this_events++; | |
d8b64af2 | 453 | } |
fc5c0345 | 454 | |
d8b64af2 | 455 | return this_events; |
fc5c0345 DG |
456 | } |
457 | ||
458 | static int fio_rbd_getevents(struct thread_data *td, unsigned int min, | |
1f440ece | 459 | unsigned int max, const struct timespec *t) |
fc5c0345 | 460 | { |
d8b64af2 | 461 | unsigned int this_events, events = 0; |
d7d702c7 | 462 | struct rbd_options *o = td->eo; |
d8b64af2 | 463 | int wait = 0; |
fc5c0345 DG |
464 | |
465 | do { | |
d8b64af2 | 466 | this_events = rbd_iter_events(td, &events, min, wait); |
fc5c0345 | 467 | |
d8b64af2 | 468 | if (events >= min) |
fc5c0345 | 469 | break; |
d8b64af2 JA |
470 | if (this_events) |
471 | continue; | |
fc5c0345 | 472 | |
d7d702c7 JA |
473 | if (!o->busy_poll) |
474 | wait = 1; | |
475 | else | |
476 | nop; | |
fc5c0345 DG |
477 | } while (1); |
478 | ||
479 | return events; | |
480 | } | |
481 | ||
2e4ef4fb JA |
482 | static enum fio_q_status fio_rbd_queue(struct thread_data *td, |
483 | struct io_u *io_u) | |
fc5c0345 | 484 | { |
565e784d | 485 | struct rbd_data *rbd = td->io_ops_data; |
d8b64af2 JA |
486 | struct fio_rbd_iou *fri = io_u->engine_data; |
487 | int r = -1; | |
fc5c0345 DG |
488 | |
489 | fio_ro_check(td, io_u); | |
490 | ||
d8b64af2 | 491 | fri->io_seen = 0; |
b8ecbef6 | 492 | fri->io_complete = 0; |
d8b64af2 | 493 | |
dbf388d2 | 494 | r = rbd_aio_create_completion(fri, _fio_rbd_finish_aiocb, |
d8b64af2 | 495 | &fri->completion); |
dbf388d2 JA |
496 | if (r < 0) { |
497 | log_err("rbd_aio_create_completion failed.\n"); | |
498 | goto failed; | |
499 | } | |
fc5c0345 | 500 | |
dbf388d2 | 501 | if (io_u->ddir == DDIR_WRITE) { |
6f9961ac JA |
502 | r = rbd_aio_write(rbd->image, io_u->offset, io_u->xfer_buflen, |
503 | io_u->xfer_buf, fri->completion); | |
fc5c0345 DG |
504 | if (r < 0) { |
505 | log_err("rbd_aio_write failed.\n"); | |
dbf388d2 | 506 | goto failed_comp; |
fc5c0345 DG |
507 | } |
508 | ||
509 | } else if (io_u->ddir == DDIR_READ) { | |
6f9961ac JA |
510 | r = rbd_aio_read(rbd->image, io_u->offset, io_u->xfer_buflen, |
511 | io_u->xfer_buf, fri->completion); | |
fc5c0345 DG |
512 | |
513 | if (r < 0) { | |
514 | log_err("rbd_aio_read failed.\n"); | |
dbf388d2 | 515 | goto failed_comp; |
fc5c0345 | 516 | } |
dbf388d2 | 517 | } else if (io_u->ddir == DDIR_TRIM) { |
6f9961ac JA |
518 | r = rbd_aio_discard(rbd->image, io_u->offset, |
519 | io_u->xfer_buflen, fri->completion); | |
82340a9f | 520 | if (r < 0) { |
dbf388d2 JA |
521 | log_err("rbd_aio_discard failed.\n"); |
522 | goto failed_comp; | |
82340a9f | 523 | } |
dbf388d2 | 524 | } else if (io_u->ddir == DDIR_SYNC) { |
6f9961ac | 525 | r = rbd_aio_flush(rbd->image, fri->completion); |
fc5c0345 DG |
526 | if (r < 0) { |
527 | log_err("rbd_flush failed.\n"); | |
dbf388d2 | 528 | goto failed_comp; |
fc5c0345 | 529 | } |
fc5c0345 DG |
530 | } else { |
531 | dprint(FD_IO, "%s: Warning: unhandled ddir: %d\n", __func__, | |
532 | io_u->ddir); | |
ef2f4a50 | 533 | r = -EINVAL; |
dbf388d2 | 534 | goto failed_comp; |
fc5c0345 DG |
535 | } |
536 | ||
537 | return FIO_Q_QUEUED; | |
dbf388d2 JA |
538 | failed_comp: |
539 | rbd_aio_release(fri->completion); | |
fc5c0345 | 540 | failed: |
d7658ced | 541 | io_u->error = -r; |
fc5c0345 DG |
542 | td_verror(td, io_u->error, "xfer"); |
543 | return FIO_Q_COMPLETED; | |
544 | } | |
545 | ||
546 | static int fio_rbd_init(struct thread_data *td) | |
547 | { | |
548 | int r; | |
e0f35b53 | 549 | struct rbd_data *rbd = td->io_ops_data; |
35448275 JA |
550 | |
551 | if (rbd->connected) | |
e0f35b53 | 552 | return 0; |
fc5c0345 DG |
553 | |
554 | r = _fio_rbd_connect(td); | |
555 | if (r) { | |
556 | log_err("fio_rbd_connect failed, return code: %d .\n", r); | |
557 | goto failed; | |
558 | } | |
559 | ||
560 | return 0; | |
561 | ||
562 | failed: | |
563 | return 1; | |
fc5c0345 DG |
564 | } |
565 | ||
566 | static void fio_rbd_cleanup(struct thread_data *td) | |
567 | { | |
565e784d | 568 | struct rbd_data *rbd = td->io_ops_data; |
fc5c0345 | 569 | |
6f9961ac JA |
570 | if (rbd) { |
571 | _fio_rbd_disconnect(rbd); | |
572 | free(rbd->aio_events); | |
573 | free(rbd->sort_events); | |
574 | free(rbd); | |
fc5c0345 | 575 | } |
fc5c0345 DG |
576 | } |
577 | ||
578 | static int fio_rbd_setup(struct thread_data *td) | |
579 | { | |
fc5c0345 DG |
580 | rbd_image_info_t info; |
581 | struct fio_file *f; | |
6f9961ac | 582 | struct rbd_data *rbd = NULL; |
6f9961ac | 583 | int r; |
fc5c0345 | 584 | |
fc5c0345 | 585 | /* allocate engine specific structure to deal with librbd. */ |
6f9961ac | 586 | r = _fio_setup_rbd_data(td, &rbd); |
fc5c0345 DG |
587 | if (r) { |
588 | log_err("fio_setup_rbd_data failed.\n"); | |
589 | goto cleanup; | |
590 | } | |
565e784d | 591 | td->io_ops_data = rbd; |
fc5c0345 | 592 | |
d8b64af2 JA |
593 | /* librbd does not allow us to run first in the main thread and later |
594 | * in a fork child. It needs to be the same process context all the | |
595 | * time. | |
fc5c0345 DG |
596 | */ |
597 | td->o.use_thread = 1; | |
598 | ||
599 | /* connect in the main thread to determine to determine | |
600 | * the size of the given RADOS block device. And disconnect | |
601 | * later on. | |
602 | */ | |
603 | r = _fio_rbd_connect(td); | |
604 | if (r) { | |
605 | log_err("fio_rbd_connect failed.\n"); | |
606 | goto cleanup; | |
607 | } | |
e0f35b53 | 608 | rbd->connected = true; |
fc5c0345 DG |
609 | |
610 | /* get size of the RADOS block device */ | |
6f9961ac | 611 | r = rbd_stat(rbd->image, &info, sizeof(info)); |
fc5c0345 DG |
612 | if (r < 0) { |
613 | log_err("rbd_status failed.\n"); | |
6747f469 | 614 | goto cleanup; |
206c546d PL |
615 | } else if (info.size == 0) { |
616 | log_err("image size should be larger than zero.\n"); | |
617 | r = -EINVAL; | |
6747f469 | 618 | goto cleanup; |
fc5c0345 | 619 | } |
206c546d | 620 | |
50ea012c | 621 | dprint(FD_IO, "rbd-engine: image size: %" PRIu64 "\n", info.size); |
fc5c0345 DG |
622 | |
623 | /* taken from "net" engine. Pretend we deal with files, | |
624 | * even if we do not have any ideas about files. | |
625 | * The size of the RBD is set instead of a artificial file. | |
626 | */ | |
627 | if (!td->files_index) { | |
5903e7b7 | 628 | add_file(td, td->o.filename ? : "rbd", 0, 0); |
fc5c0345 | 629 | td->o.nr_files = td->o.nr_files ? : 1; |
b53f2c54 | 630 | td->o.open_files++; |
fc5c0345 DG |
631 | } |
632 | f = td->files[0]; | |
633 | f->real_file_size = info.size; | |
634 | ||
fc5c0345 DG |
635 | return 0; |
636 | ||
fc5c0345 DG |
637 | cleanup: |
638 | fio_rbd_cleanup(td); | |
639 | return r; | |
640 | } | |
641 | ||
642 | static int fio_rbd_open(struct thread_data *td, struct fio_file *f) | |
643 | { | |
644 | return 0; | |
645 | } | |
646 | ||
d9b100fc JA |
647 | static int fio_rbd_invalidate(struct thread_data *td, struct fio_file *f) |
648 | { | |
903b2812 | 649 | #if defined(CONFIG_RBD_INVAL) |
565e784d | 650 | struct rbd_data *rbd = td->io_ops_data; |
903b2812 | 651 | |
6f9961ac | 652 | return rbd_invalidate_cache(rbd->image); |
903b2812 | 653 | #else |
d9b100fc | 654 | return 0; |
903b2812 | 655 | #endif |
d9b100fc JA |
656 | } |
657 | ||
fc5c0345 DG |
658 | static void fio_rbd_io_u_free(struct thread_data *td, struct io_u *io_u) |
659 | { | |
d8b64af2 | 660 | struct fio_rbd_iou *fri = io_u->engine_data; |
fc5c0345 | 661 | |
d8b64af2 | 662 | if (fri) { |
fc5c0345 | 663 | io_u->engine_data = NULL; |
d8b64af2 | 664 | free(fri); |
fc5c0345 DG |
665 | } |
666 | } | |
667 | ||
668 | static int fio_rbd_io_u_init(struct thread_data *td, struct io_u *io_u) | |
669 | { | |
d8b64af2 | 670 | struct fio_rbd_iou *fri; |
fc5c0345 | 671 | |
d8b64af2 JA |
672 | fri = calloc(1, sizeof(*fri)); |
673 | fri->io_u = io_u; | |
674 | io_u->engine_data = fri; | |
fc5c0345 DG |
675 | return 0; |
676 | } | |
677 | ||
5a8a6a03 | 678 | FIO_STATIC struct ioengine_ops ioengine = { |
d9b100fc JA |
679 | .name = "rbd", |
680 | .version = FIO_IOOPS_VERSION, | |
681 | .setup = fio_rbd_setup, | |
682 | .init = fio_rbd_init, | |
683 | .queue = fio_rbd_queue, | |
684 | .getevents = fio_rbd_getevents, | |
685 | .event = fio_rbd_event, | |
686 | .cleanup = fio_rbd_cleanup, | |
687 | .open_file = fio_rbd_open, | |
688 | .invalidate = fio_rbd_invalidate, | |
689 | .options = options, | |
690 | .io_u_init = fio_rbd_io_u_init, | |
691 | .io_u_free = fio_rbd_io_u_free, | |
692 | .option_struct_size = sizeof(struct rbd_options), | |
fc5c0345 DG |
693 | }; |
694 | ||
695 | static void fio_init fio_rbd_register(void) | |
696 | { | |
697 | register_ioengine(&ioengine); | |
698 | } | |
699 | ||
700 | static void fio_exit fio_rbd_unregister(void) | |
701 | { | |
702 | unregister_ioengine(&ioengine); | |
703 | } |