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 DG |
12 | |
13 | struct fio_rbd_iou { | |
14 | struct io_u *io_u; | |
d8b64af2 | 15 | rbd_completion_t completion; |
d8b64af2 | 16 | int io_seen; |
b8ecbef6 | 17 | int io_complete; |
fc5c0345 DG |
18 | }; |
19 | ||
20 | struct rbd_data { | |
21 | rados_t cluster; | |
22 | rados_ioctx_t io_ctx; | |
23 | rbd_image_t image; | |
24 | struct io_u **aio_events; | |
6f9961ac | 25 | struct io_u **sort_events; |
fc5c0345 DG |
26 | }; |
27 | ||
28 | struct rbd_options { | |
a1f871c7 | 29 | void *pad; |
6e20c6e7 | 30 | char *cluster_name; |
fc5c0345 DG |
31 | char *rbd_name; |
32 | char *pool_name; | |
33 | char *client_name; | |
d7d702c7 | 34 | int busy_poll; |
fc5c0345 DG |
35 | }; |
36 | ||
37 | static struct fio_option options[] = { | |
6e20c6e7 T |
38 | { |
39 | .name = "clustername", | |
40 | .lname = "ceph cluster name", | |
41 | .type = FIO_OPT_STR_STORE, | |
42 | .help = "Cluster name for ceph", | |
43 | .off1 = offsetof(struct rbd_options, cluster_name), | |
44 | .category = FIO_OPT_C_ENGINE, | |
45 | .group = FIO_OPT_G_RBD, | |
46 | }, | |
fc5c0345 | 47 | { |
d8b64af2 JA |
48 | .name = "rbdname", |
49 | .lname = "rbd engine rbdname", | |
50 | .type = FIO_OPT_STR_STORE, | |
51 | .help = "RBD name for RBD engine", | |
52 | .off1 = offsetof(struct rbd_options, rbd_name), | |
53 | .category = FIO_OPT_C_ENGINE, | |
54 | .group = FIO_OPT_G_RBD, | |
55 | }, | |
fc5c0345 | 56 | { |
d7d702c7 JA |
57 | .name = "pool", |
58 | .lname = "rbd engine pool", | |
59 | .type = FIO_OPT_STR_STORE, | |
60 | .help = "Name of the pool hosting the RBD for the RBD engine", | |
61 | .off1 = offsetof(struct rbd_options, pool_name), | |
62 | .category = FIO_OPT_C_ENGINE, | |
63 | .group = FIO_OPT_G_RBD, | |
d8b64af2 | 64 | }, |
fc5c0345 | 65 | { |
d7d702c7 JA |
66 | .name = "clientname", |
67 | .lname = "rbd engine clientname", | |
68 | .type = FIO_OPT_STR_STORE, | |
69 | .help = "Name of the ceph client to access the RBD for the RBD engine", | |
70 | .off1 = offsetof(struct rbd_options, client_name), | |
71 | .category = FIO_OPT_C_ENGINE, | |
72 | .group = FIO_OPT_G_RBD, | |
73 | }, | |
74 | { | |
75 | .name = "busy_poll", | |
76 | .lname = "Busy poll", | |
77 | .type = FIO_OPT_BOOL, | |
78 | .help = "Busy poll for completions instead of sleeping", | |
fea585d4 | 79 | .off1 = offsetof(struct rbd_options, busy_poll), |
d7d702c7 JA |
80 | .def = "0", |
81 | .category = FIO_OPT_C_ENGINE, | |
82 | .group = FIO_OPT_G_RBD, | |
d8b64af2 | 83 | }, |
fc5c0345 | 84 | { |
d8b64af2 JA |
85 | .name = NULL, |
86 | }, | |
fc5c0345 DG |
87 | }; |
88 | ||
89 | static int _fio_setup_rbd_data(struct thread_data *td, | |
90 | struct rbd_data **rbd_data_ptr) | |
91 | { | |
6f9961ac | 92 | struct rbd_data *rbd; |
fc5c0345 DG |
93 | |
94 | if (td->io_ops->data) | |
95 | return 0; | |
96 | ||
6f9961ac JA |
97 | rbd = calloc(1, sizeof(struct rbd_data)); |
98 | if (!rbd) | |
fc5c0345 DG |
99 | goto failed; |
100 | ||
6f9961ac JA |
101 | rbd->aio_events = calloc(td->o.iodepth, sizeof(struct io_u *)); |
102 | if (!rbd->aio_events) | |
fc5c0345 DG |
103 | goto failed; |
104 | ||
6f9961ac JA |
105 | rbd->sort_events = calloc(td->o.iodepth, sizeof(struct io_u *)); |
106 | if (!rbd->sort_events) | |
107 | goto failed; | |
fc5c0345 | 108 | |
6f9961ac | 109 | *rbd_data_ptr = rbd; |
fc5c0345 DG |
110 | return 0; |
111 | ||
112 | failed: | |
6f9961ac JA |
113 | if (rbd) |
114 | free(rbd); | |
fc5c0345 DG |
115 | return 1; |
116 | ||
117 | } | |
118 | ||
119 | static int _fio_rbd_connect(struct thread_data *td) | |
120 | { | |
6f9961ac | 121 | struct rbd_data *rbd = td->io_ops->data; |
fc5c0345 DG |
122 | struct rbd_options *o = td->eo; |
123 | int r; | |
124 | ||
6e20c6e7 T |
125 | if (o->cluster_name) { |
126 | char *client_name = NULL; | |
127 | ||
128 | /* | |
129 | * If we specify cluser name, the rados_creat2 | |
130 | * will not assume 'client.'. name is considered | |
131 | * as a full type.id namestr | |
132 | */ | |
133 | if (!index(o->client_name, '.')) { | |
134 | client_name = calloc(1, strlen("client.") + | |
135 | strlen(o->client_name) + 1); | |
136 | strcat(client_name, "client."); | |
137 | o->client_name = strcat(client_name, o->client_name); | |
138 | } | |
139 | r = rados_create2(&rbd->cluster, o->cluster_name, | |
140 | o->client_name, 0); | |
141 | } else | |
142 | r = rados_create(&rbd->cluster, o->client_name); | |
143 | ||
fc5c0345 DG |
144 | if (r < 0) { |
145 | log_err("rados_create failed.\n"); | |
146 | goto failed_early; | |
147 | } | |
148 | ||
6f9961ac | 149 | r = rados_conf_read_file(rbd->cluster, NULL); |
fc5c0345 DG |
150 | if (r < 0) { |
151 | log_err("rados_conf_read_file failed.\n"); | |
152 | goto failed_early; | |
153 | } | |
154 | ||
6f9961ac | 155 | r = rados_connect(rbd->cluster); |
fc5c0345 DG |
156 | if (r < 0) { |
157 | log_err("rados_connect failed.\n"); | |
158 | goto failed_shutdown; | |
159 | } | |
160 | ||
6f9961ac | 161 | r = rados_ioctx_create(rbd->cluster, o->pool_name, &rbd->io_ctx); |
fc5c0345 DG |
162 | if (r < 0) { |
163 | log_err("rados_ioctx_create failed.\n"); | |
164 | goto failed_shutdown; | |
165 | } | |
166 | ||
6f9961ac | 167 | r = rbd_open(rbd->io_ctx, o->rbd_name, &rbd->image, NULL /*snap */ ); |
fc5c0345 DG |
168 | if (r < 0) { |
169 | log_err("rbd_open failed.\n"); | |
170 | goto failed_open; | |
171 | } | |
172 | return 0; | |
173 | ||
174 | failed_open: | |
6f9961ac JA |
175 | rados_ioctx_destroy(rbd->io_ctx); |
176 | rbd->io_ctx = NULL; | |
fc5c0345 | 177 | failed_shutdown: |
6f9961ac JA |
178 | rados_shutdown(rbd->cluster); |
179 | rbd->cluster = NULL; | |
fc5c0345 DG |
180 | failed_early: |
181 | return 1; | |
182 | } | |
183 | ||
6f9961ac | 184 | static void _fio_rbd_disconnect(struct rbd_data *rbd) |
fc5c0345 | 185 | { |
6f9961ac | 186 | if (!rbd) |
fc5c0345 DG |
187 | return; |
188 | ||
189 | /* shutdown everything */ | |
6f9961ac JA |
190 | if (rbd->image) { |
191 | rbd_close(rbd->image); | |
192 | rbd->image = NULL; | |
fc5c0345 DG |
193 | } |
194 | ||
6f9961ac JA |
195 | if (rbd->io_ctx) { |
196 | rados_ioctx_destroy(rbd->io_ctx); | |
197 | rbd->io_ctx = NULL; | |
fc5c0345 DG |
198 | } |
199 | ||
6f9961ac JA |
200 | if (rbd->cluster) { |
201 | rados_shutdown(rbd->cluster); | |
202 | rbd->cluster = NULL; | |
fc5c0345 DG |
203 | } |
204 | } | |
205 | ||
d8b64af2 | 206 | static void _fio_rbd_finish_aiocb(rbd_completion_t comp, void *data) |
fc5c0345 | 207 | { |
dbf388d2 JA |
208 | struct fio_rbd_iou *fri = data; |
209 | struct io_u *io_u = fri->io_u; | |
d8b64af2 | 210 | ssize_t ret; |
fc5c0345 | 211 | |
d8b64af2 JA |
212 | /* |
213 | * Looks like return value is 0 for success, or < 0 for | |
214 | * a specific error. So we have to assume that it can't do | |
215 | * partial completions. | |
216 | */ | |
217 | ret = rbd_aio_get_return_value(fri->completion); | |
218 | if (ret < 0) { | |
219 | io_u->error = ret; | |
220 | io_u->resid = io_u->xfer_buflen; | |
221 | } else | |
222 | io_u->error = 0; | |
20cf5aab JD |
223 | |
224 | fri->io_complete = 1; | |
d8b64af2 | 225 | } |
fc5c0345 | 226 | |
d8b64af2 JA |
227 | static struct io_u *fio_rbd_event(struct thread_data *td, int event) |
228 | { | |
6f9961ac | 229 | struct rbd_data *rbd = td->io_ops->data; |
fc5c0345 | 230 | |
6f9961ac | 231 | return rbd->aio_events[event]; |
fc5c0345 DG |
232 | } |
233 | ||
6f9961ac | 234 | static inline int fri_check_complete(struct rbd_data *rbd, struct io_u *io_u, |
d8b64af2 | 235 | unsigned int *events) |
fc5c0345 | 236 | { |
d8b64af2 | 237 | struct fio_rbd_iou *fri = io_u->engine_data; |
fc5c0345 | 238 | |
b8ecbef6 | 239 | if (fri->io_complete) { |
d8b64af2 | 240 | fri->io_seen = 1; |
6f9961ac | 241 | rbd->aio_events[*events] = io_u; |
d8b64af2 | 242 | (*events)++; |
fc5c0345 | 243 | |
d8b64af2 JA |
244 | rbd_aio_release(fri->completion); |
245 | return 1; | |
246 | } | |
fc5c0345 | 247 | |
d8b64af2 | 248 | return 0; |
fc5c0345 DG |
249 | } |
250 | ||
6f9961ac JA |
251 | static inline int rbd_io_u_seen(struct io_u *io_u) |
252 | { | |
253 | struct fio_rbd_iou *fri = io_u->engine_data; | |
254 | ||
255 | return fri->io_seen; | |
256 | } | |
257 | ||
258 | static void rbd_io_u_wait_complete(struct io_u *io_u) | |
259 | { | |
260 | struct fio_rbd_iou *fri = io_u->engine_data; | |
261 | ||
262 | rbd_aio_wait_for_complete(fri->completion); | |
263 | } | |
264 | ||
265 | static int rbd_io_u_cmp(const void *p1, const void *p2) | |
266 | { | |
267 | const struct io_u **a = (const struct io_u **) p1; | |
268 | const struct io_u **b = (const struct io_u **) p2; | |
269 | uint64_t at, bt; | |
270 | ||
271 | at = utime_since_now(&(*a)->start_time); | |
272 | bt = utime_since_now(&(*b)->start_time); | |
273 | ||
274 | if (at < bt) | |
275 | return -1; | |
276 | else if (at == bt) | |
277 | return 0; | |
278 | else | |
279 | return 1; | |
280 | } | |
281 | ||
d8b64af2 JA |
282 | static int rbd_iter_events(struct thread_data *td, unsigned int *events, |
283 | unsigned int min_evts, int wait) | |
82340a9f | 284 | { |
6f9961ac | 285 | struct rbd_data *rbd = td->io_ops->data; |
d8b64af2 JA |
286 | unsigned int this_events = 0; |
287 | struct io_u *io_u; | |
6f9961ac | 288 | int i, sidx; |
82340a9f | 289 | |
6f9961ac | 290 | sidx = 0; |
d8b64af2 | 291 | io_u_qiter(&td->io_u_all, io_u, i) { |
d8b64af2 JA |
292 | if (!(io_u->flags & IO_U_F_FLIGHT)) |
293 | continue; | |
6f9961ac | 294 | if (rbd_io_u_seen(io_u)) |
d8b64af2 | 295 | continue; |
82340a9f | 296 | |
6f9961ac | 297 | if (fri_check_complete(rbd, io_u, events)) |
d8b64af2 | 298 | this_events++; |
6f9961ac JA |
299 | else if (wait) |
300 | rbd->sort_events[sidx++] = io_u; | |
301 | } | |
82340a9f | 302 | |
6f9961ac JA |
303 | if (!wait || !sidx) |
304 | return this_events; | |
305 | ||
306 | /* | |
307 | * Sort events, oldest issue first, then wait on as many as we | |
308 | * need in order of age. If we have enough events, stop waiting, | |
309 | * and just check if any of the older ones are done. | |
310 | */ | |
311 | if (sidx > 1) | |
312 | qsort(rbd->sort_events, sidx, sizeof(struct io_u *), rbd_io_u_cmp); | |
313 | ||
314 | for (i = 0; i < sidx; i++) { | |
315 | io_u = rbd->sort_events[i]; | |
316 | ||
317 | if (fri_check_complete(rbd, io_u, events)) { | |
318 | this_events++; | |
319 | continue; | |
d8b64af2 | 320 | } |
6f9961ac JA |
321 | |
322 | /* | |
323 | * Stop waiting when we have enough, but continue checking | |
324 | * all pending IOs if they are complete. | |
325 | */ | |
d8b64af2 | 326 | if (*events >= min_evts) |
6f9961ac JA |
327 | continue; |
328 | ||
329 | rbd_io_u_wait_complete(io_u); | |
330 | ||
331 | if (fri_check_complete(rbd, io_u, events)) | |
332 | this_events++; | |
d8b64af2 | 333 | } |
fc5c0345 | 334 | |
d8b64af2 | 335 | return this_events; |
fc5c0345 DG |
336 | } |
337 | ||
338 | static int fio_rbd_getevents(struct thread_data *td, unsigned int min, | |
1f440ece | 339 | unsigned int max, const struct timespec *t) |
fc5c0345 | 340 | { |
d8b64af2 | 341 | unsigned int this_events, events = 0; |
d7d702c7 | 342 | struct rbd_options *o = td->eo; |
d8b64af2 | 343 | int wait = 0; |
fc5c0345 DG |
344 | |
345 | do { | |
d8b64af2 | 346 | this_events = rbd_iter_events(td, &events, min, wait); |
fc5c0345 | 347 | |
d8b64af2 | 348 | if (events >= min) |
fc5c0345 | 349 | break; |
d8b64af2 JA |
350 | if (this_events) |
351 | continue; | |
fc5c0345 | 352 | |
d7d702c7 JA |
353 | if (!o->busy_poll) |
354 | wait = 1; | |
355 | else | |
356 | nop; | |
fc5c0345 DG |
357 | } while (1); |
358 | ||
359 | return events; | |
360 | } | |
361 | ||
362 | static int fio_rbd_queue(struct thread_data *td, struct io_u *io_u) | |
363 | { | |
6f9961ac | 364 | struct rbd_data *rbd = td->io_ops->data; |
d8b64af2 JA |
365 | struct fio_rbd_iou *fri = io_u->engine_data; |
366 | int r = -1; | |
fc5c0345 DG |
367 | |
368 | fio_ro_check(td, io_u); | |
369 | ||
d8b64af2 | 370 | fri->io_seen = 0; |
b8ecbef6 | 371 | fri->io_complete = 0; |
d8b64af2 | 372 | |
dbf388d2 | 373 | r = rbd_aio_create_completion(fri, _fio_rbd_finish_aiocb, |
d8b64af2 | 374 | &fri->completion); |
dbf388d2 JA |
375 | if (r < 0) { |
376 | log_err("rbd_aio_create_completion failed.\n"); | |
377 | goto failed; | |
378 | } | |
fc5c0345 | 379 | |
dbf388d2 | 380 | if (io_u->ddir == DDIR_WRITE) { |
6f9961ac JA |
381 | r = rbd_aio_write(rbd->image, io_u->offset, io_u->xfer_buflen, |
382 | io_u->xfer_buf, fri->completion); | |
fc5c0345 DG |
383 | if (r < 0) { |
384 | log_err("rbd_aio_write failed.\n"); | |
dbf388d2 | 385 | goto failed_comp; |
fc5c0345 DG |
386 | } |
387 | ||
388 | } else if (io_u->ddir == DDIR_READ) { | |
6f9961ac JA |
389 | r = rbd_aio_read(rbd->image, io_u->offset, io_u->xfer_buflen, |
390 | io_u->xfer_buf, fri->completion); | |
fc5c0345 DG |
391 | |
392 | if (r < 0) { | |
393 | log_err("rbd_aio_read failed.\n"); | |
dbf388d2 | 394 | goto failed_comp; |
fc5c0345 | 395 | } |
dbf388d2 | 396 | } else if (io_u->ddir == DDIR_TRIM) { |
6f9961ac JA |
397 | r = rbd_aio_discard(rbd->image, io_u->offset, |
398 | io_u->xfer_buflen, fri->completion); | |
82340a9f | 399 | if (r < 0) { |
dbf388d2 JA |
400 | log_err("rbd_aio_discard failed.\n"); |
401 | goto failed_comp; | |
82340a9f | 402 | } |
dbf388d2 | 403 | } else if (io_u->ddir == DDIR_SYNC) { |
6f9961ac | 404 | r = rbd_aio_flush(rbd->image, fri->completion); |
fc5c0345 DG |
405 | if (r < 0) { |
406 | log_err("rbd_flush failed.\n"); | |
dbf388d2 | 407 | goto failed_comp; |
fc5c0345 | 408 | } |
fc5c0345 DG |
409 | } else { |
410 | dprint(FD_IO, "%s: Warning: unhandled ddir: %d\n", __func__, | |
411 | io_u->ddir); | |
dbf388d2 | 412 | goto failed_comp; |
fc5c0345 DG |
413 | } |
414 | ||
415 | return FIO_Q_QUEUED; | |
dbf388d2 JA |
416 | failed_comp: |
417 | rbd_aio_release(fri->completion); | |
fc5c0345 DG |
418 | failed: |
419 | io_u->error = r; | |
420 | td_verror(td, io_u->error, "xfer"); | |
421 | return FIO_Q_COMPLETED; | |
422 | } | |
423 | ||
424 | static int fio_rbd_init(struct thread_data *td) | |
425 | { | |
426 | int r; | |
427 | ||
428 | r = _fio_rbd_connect(td); | |
429 | if (r) { | |
430 | log_err("fio_rbd_connect failed, return code: %d .\n", r); | |
431 | goto failed; | |
432 | } | |
433 | ||
434 | return 0; | |
435 | ||
436 | failed: | |
437 | return 1; | |
fc5c0345 DG |
438 | } |
439 | ||
440 | static void fio_rbd_cleanup(struct thread_data *td) | |
441 | { | |
6f9961ac | 442 | struct rbd_data *rbd = td->io_ops->data; |
fc5c0345 | 443 | |
6f9961ac JA |
444 | if (rbd) { |
445 | _fio_rbd_disconnect(rbd); | |
446 | free(rbd->aio_events); | |
447 | free(rbd->sort_events); | |
448 | free(rbd); | |
fc5c0345 | 449 | } |
fc5c0345 DG |
450 | } |
451 | ||
452 | static int fio_rbd_setup(struct thread_data *td) | |
453 | { | |
fc5c0345 DG |
454 | rbd_image_info_t info; |
455 | struct fio_file *f; | |
6f9961ac | 456 | struct rbd_data *rbd = NULL; |
fc5c0345 | 457 | int major, minor, extra; |
6f9961ac | 458 | int r; |
fc5c0345 DG |
459 | |
460 | /* log version of librbd. No cluster connection required. */ | |
461 | rbd_version(&major, &minor, &extra); | |
462 | log_info("rbd engine: RBD version: %d.%d.%d\n", major, minor, extra); | |
463 | ||
464 | /* allocate engine specific structure to deal with librbd. */ | |
6f9961ac | 465 | r = _fio_setup_rbd_data(td, &rbd); |
fc5c0345 DG |
466 | if (r) { |
467 | log_err("fio_setup_rbd_data failed.\n"); | |
468 | goto cleanup; | |
469 | } | |
6f9961ac | 470 | td->io_ops->data = rbd; |
fc5c0345 | 471 | |
d8b64af2 JA |
472 | /* librbd does not allow us to run first in the main thread and later |
473 | * in a fork child. It needs to be the same process context all the | |
474 | * time. | |
fc5c0345 DG |
475 | */ |
476 | td->o.use_thread = 1; | |
477 | ||
478 | /* connect in the main thread to determine to determine | |
479 | * the size of the given RADOS block device. And disconnect | |
480 | * later on. | |
481 | */ | |
482 | r = _fio_rbd_connect(td); | |
483 | if (r) { | |
484 | log_err("fio_rbd_connect failed.\n"); | |
485 | goto cleanup; | |
486 | } | |
487 | ||
488 | /* get size of the RADOS block device */ | |
6f9961ac | 489 | r = rbd_stat(rbd->image, &info, sizeof(info)); |
fc5c0345 DG |
490 | if (r < 0) { |
491 | log_err("rbd_status failed.\n"); | |
492 | goto disconnect; | |
493 | } | |
494 | dprint(FD_IO, "rbd-engine: image size: %lu\n", info.size); | |
495 | ||
496 | /* taken from "net" engine. Pretend we deal with files, | |
497 | * even if we do not have any ideas about files. | |
498 | * The size of the RBD is set instead of a artificial file. | |
499 | */ | |
500 | if (!td->files_index) { | |
5903e7b7 | 501 | add_file(td, td->o.filename ? : "rbd", 0, 0); |
fc5c0345 | 502 | td->o.nr_files = td->o.nr_files ? : 1; |
b53f2c54 | 503 | td->o.open_files++; |
fc5c0345 DG |
504 | } |
505 | f = td->files[0]; | |
506 | f->real_file_size = info.size; | |
507 | ||
508 | /* disconnect, then we were only connected to determine | |
509 | * the size of the RBD. | |
510 | */ | |
6f9961ac | 511 | _fio_rbd_disconnect(rbd); |
fc5c0345 DG |
512 | return 0; |
513 | ||
514 | disconnect: | |
6f9961ac | 515 | _fio_rbd_disconnect(rbd); |
fc5c0345 DG |
516 | cleanup: |
517 | fio_rbd_cleanup(td); | |
518 | return r; | |
519 | } | |
520 | ||
521 | static int fio_rbd_open(struct thread_data *td, struct fio_file *f) | |
522 | { | |
523 | return 0; | |
524 | } | |
525 | ||
d9b100fc JA |
526 | static int fio_rbd_invalidate(struct thread_data *td, struct fio_file *f) |
527 | { | |
903b2812 | 528 | #if defined(CONFIG_RBD_INVAL) |
6f9961ac | 529 | struct rbd_data *rbd = td->io_ops->data; |
903b2812 | 530 | |
6f9961ac | 531 | return rbd_invalidate_cache(rbd->image); |
903b2812 | 532 | #else |
d9b100fc | 533 | return 0; |
903b2812 | 534 | #endif |
d9b100fc JA |
535 | } |
536 | ||
fc5c0345 DG |
537 | static void fio_rbd_io_u_free(struct thread_data *td, struct io_u *io_u) |
538 | { | |
d8b64af2 | 539 | struct fio_rbd_iou *fri = io_u->engine_data; |
fc5c0345 | 540 | |
d8b64af2 | 541 | if (fri) { |
fc5c0345 | 542 | io_u->engine_data = NULL; |
d8b64af2 | 543 | free(fri); |
fc5c0345 DG |
544 | } |
545 | } | |
546 | ||
547 | static int fio_rbd_io_u_init(struct thread_data *td, struct io_u *io_u) | |
548 | { | |
d8b64af2 | 549 | struct fio_rbd_iou *fri; |
fc5c0345 | 550 | |
d8b64af2 JA |
551 | fri = calloc(1, sizeof(*fri)); |
552 | fri->io_u = io_u; | |
553 | io_u->engine_data = fri; | |
fc5c0345 DG |
554 | return 0; |
555 | } | |
556 | ||
10aa136b | 557 | static struct ioengine_ops ioengine = { |
d9b100fc JA |
558 | .name = "rbd", |
559 | .version = FIO_IOOPS_VERSION, | |
560 | .setup = fio_rbd_setup, | |
561 | .init = fio_rbd_init, | |
562 | .queue = fio_rbd_queue, | |
563 | .getevents = fio_rbd_getevents, | |
564 | .event = fio_rbd_event, | |
565 | .cleanup = fio_rbd_cleanup, | |
566 | .open_file = fio_rbd_open, | |
567 | .invalidate = fio_rbd_invalidate, | |
568 | .options = options, | |
569 | .io_u_init = fio_rbd_io_u_init, | |
570 | .io_u_free = fio_rbd_io_u_free, | |
571 | .option_struct_size = sizeof(struct rbd_options), | |
fc5c0345 DG |
572 | }; |
573 | ||
574 | static void fio_init fio_rbd_register(void) | |
575 | { | |
576 | register_ioengine(&ioengine); | |
577 | } | |
578 | ||
579 | static void fio_exit fio_rbd_unregister(void) | |
580 | { | |
581 | unregister_ioengine(&ioengine); | |
582 | } |