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Merge branch 'master' of https://github.com/bvanassche/fio
[fio.git] / engines / io_uring.c
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CommitLineData
1/*
2 * io_uring engine
3 *
4 * IO engine using the new native Linux aio io_uring interface. See:
5 *
6 * http://git.kernel.dk/cgit/linux-block/log/?h=io_uring
7 *
8 */
9#include <stdlib.h>
10#include <unistd.h>
11#include <errno.h>
12#include <sys/time.h>
13#include <sys/resource.h>
14
15#include "../fio.h"
16#include "../lib/pow2.h"
17#include "../optgroup.h"
18#include "../lib/memalign.h"
19#include "../lib/fls.h"
20#include "../lib/roundup.h"
21#include "../verify.h"
22
23#ifdef ARCH_HAVE_IOURING
24
25#include "../lib/types.h"
26#include "../os/linux/io_uring.h"
27#include "cmdprio.h"
28#include "zbd.h"
29#include "nvme.h"
30
31#include <sys/stat.h>
32
33enum uring_cmd_type {
34 FIO_URING_CMD_NVME = 1,
35};
36
37struct io_sq_ring {
38 unsigned *head;
39 unsigned *tail;
40 unsigned *ring_mask;
41 unsigned *ring_entries;
42 unsigned *flags;
43 unsigned *array;
44};
45
46struct io_cq_ring {
47 unsigned *head;
48 unsigned *tail;
49 unsigned *ring_mask;
50 unsigned *ring_entries;
51 struct io_uring_cqe *cqes;
52};
53
54struct ioring_mmap {
55 void *ptr;
56 size_t len;
57};
58
59struct ioring_data {
60 int ring_fd;
61
62 struct io_u **io_u_index;
63 char *md_buf;
64
65 int *fds;
66
67 struct io_sq_ring sq_ring;
68 struct io_uring_sqe *sqes;
69 struct iovec *iovecs;
70 unsigned sq_ring_mask;
71
72 struct io_cq_ring cq_ring;
73 unsigned cq_ring_mask;
74
75 int queued;
76 int cq_ring_off;
77 unsigned iodepth;
78 int prepped;
79
80 struct ioring_mmap mmap[3];
81
82 struct cmdprio cmdprio;
83
84 struct nvme_dsm_range *dsm;
85};
86
87struct ioring_options {
88 struct thread_data *td;
89 unsigned int hipri;
90 struct cmdprio_options cmdprio_options;
91 unsigned int fixedbufs;
92 unsigned int registerfiles;
93 unsigned int sqpoll_thread;
94 unsigned int sqpoll_set;
95 unsigned int sqpoll_cpu;
96 unsigned int nonvectored;
97 unsigned int uncached;
98 unsigned int nowait;
99 unsigned int force_async;
100 unsigned int md_per_io_size;
101 unsigned int pi_act;
102 unsigned int apptag;
103 unsigned int apptag_mask;
104 unsigned int prchk;
105 char *pi_chk;
106 enum uring_cmd_type cmd_type;
107};
108
109static const int ddir_to_op[2][2] = {
110 { IORING_OP_READV, IORING_OP_READ },
111 { IORING_OP_WRITEV, IORING_OP_WRITE }
112};
113
114static const int fixed_ddir_to_op[2] = {
115 IORING_OP_READ_FIXED,
116 IORING_OP_WRITE_FIXED
117};
118
119static int fio_ioring_sqpoll_cb(void *data, unsigned long long *val)
120{
121 struct ioring_options *o = data;
122
123 o->sqpoll_cpu = *val;
124 o->sqpoll_set = 1;
125 return 0;
126}
127
128static struct fio_option options[] = {
129 {
130 .name = "hipri",
131 .lname = "High Priority",
132 .type = FIO_OPT_STR_SET,
133 .off1 = offsetof(struct ioring_options, hipri),
134 .help = "Use polled IO completions",
135 .category = FIO_OPT_C_ENGINE,
136 .group = FIO_OPT_G_IOURING,
137 },
138 {
139 .name = "fixedbufs",
140 .lname = "Fixed (pre-mapped) IO buffers",
141 .type = FIO_OPT_STR_SET,
142 .off1 = offsetof(struct ioring_options, fixedbufs),
143 .help = "Pre map IO buffers",
144 .category = FIO_OPT_C_ENGINE,
145 .group = FIO_OPT_G_IOURING,
146 },
147 {
148 .name = "registerfiles",
149 .lname = "Register file set",
150 .type = FIO_OPT_STR_SET,
151 .off1 = offsetof(struct ioring_options, registerfiles),
152 .help = "Pre-open/register files",
153 .category = FIO_OPT_C_ENGINE,
154 .group = FIO_OPT_G_IOURING,
155 },
156 {
157 .name = "sqthread_poll",
158 .lname = "Kernel SQ thread polling",
159 .type = FIO_OPT_STR_SET,
160 .off1 = offsetof(struct ioring_options, sqpoll_thread),
161 .help = "Offload submission/completion to kernel thread",
162 .category = FIO_OPT_C_ENGINE,
163 .group = FIO_OPT_G_IOURING,
164 },
165 {
166 .name = "sqthread_poll_cpu",
167 .lname = "SQ Thread Poll CPU",
168 .type = FIO_OPT_INT,
169 .cb = fio_ioring_sqpoll_cb,
170 .help = "What CPU to run SQ thread polling on",
171 .category = FIO_OPT_C_ENGINE,
172 .group = FIO_OPT_G_IOURING,
173 },
174 {
175 .name = "nonvectored",
176 .lname = "Non-vectored",
177 .type = FIO_OPT_INT,
178 .off1 = offsetof(struct ioring_options, nonvectored),
179 .def = "-1",
180 .help = "Use non-vectored read/write commands",
181 .category = FIO_OPT_C_ENGINE,
182 .group = FIO_OPT_G_IOURING,
183 },
184 {
185 .name = "uncached",
186 .lname = "Uncached",
187 .type = FIO_OPT_INT,
188 .off1 = offsetof(struct ioring_options, uncached),
189 .help = "Use RWF_UNCACHED for buffered read/writes",
190 .category = FIO_OPT_C_ENGINE,
191 .group = FIO_OPT_G_IOURING,
192 },
193 {
194 .name = "nowait",
195 .lname = "RWF_NOWAIT",
196 .type = FIO_OPT_BOOL,
197 .off1 = offsetof(struct ioring_options, nowait),
198 .help = "Use RWF_NOWAIT for reads/writes",
199 .category = FIO_OPT_C_ENGINE,
200 .group = FIO_OPT_G_IOURING,
201 },
202 {
203 .name = "force_async",
204 .lname = "Force async",
205 .type = FIO_OPT_INT,
206 .off1 = offsetof(struct ioring_options, force_async),
207 .help = "Set IOSQE_ASYNC every N requests",
208 .category = FIO_OPT_C_ENGINE,
209 .group = FIO_OPT_G_IOURING,
210 },
211 {
212 .name = "cmd_type",
213 .lname = "Uring cmd type",
214 .type = FIO_OPT_STR,
215 .off1 = offsetof(struct ioring_options, cmd_type),
216 .help = "Specify uring-cmd type",
217 .def = "nvme",
218 .posval = {
219 { .ival = "nvme",
220 .oval = FIO_URING_CMD_NVME,
221 .help = "Issue nvme-uring-cmd",
222 },
223 },
224 .category = FIO_OPT_C_ENGINE,
225 .group = FIO_OPT_G_IOURING,
226 },
227 CMDPRIO_OPTIONS(struct ioring_options, FIO_OPT_G_IOURING),
228 {
229 .name = "md_per_io_size",
230 .lname = "Separate Metadata Buffer Size per I/O",
231 .type = FIO_OPT_INT,
232 .off1 = offsetof(struct ioring_options, md_per_io_size),
233 .def = "0",
234 .help = "Size of separate metadata buffer per I/O (Default: 0)",
235 .category = FIO_OPT_C_ENGINE,
236 .group = FIO_OPT_G_IOURING,
237 },
238 {
239 .name = "pi_act",
240 .lname = "Protection Information Action",
241 .type = FIO_OPT_BOOL,
242 .off1 = offsetof(struct ioring_options, pi_act),
243 .def = "1",
244 .help = "Protection Information Action bit (pi_act=1 or pi_act=0)",
245 .category = FIO_OPT_C_ENGINE,
246 .group = FIO_OPT_G_IOURING,
247 },
248 {
249 .name = "pi_chk",
250 .lname = "Protection Information Check",
251 .type = FIO_OPT_STR_STORE,
252 .off1 = offsetof(struct ioring_options, pi_chk),
253 .def = NULL,
254 .help = "Control of Protection Information Checking (pi_chk=GUARD,REFTAG,APPTAG)",
255 .category = FIO_OPT_C_ENGINE,
256 .group = FIO_OPT_G_IOURING,
257 },
258 {
259 .name = "apptag",
260 .lname = "Application Tag used in Protection Information",
261 .type = FIO_OPT_INT,
262 .off1 = offsetof(struct ioring_options, apptag),
263 .def = "0x1234",
264 .help = "Application Tag used in Protection Information field (Default: 0x1234)",
265 .category = FIO_OPT_C_ENGINE,
266 .group = FIO_OPT_G_IOURING,
267 },
268 {
269 .name = "apptag_mask",
270 .lname = "Application Tag Mask",
271 .type = FIO_OPT_INT,
272 .off1 = offsetof(struct ioring_options, apptag_mask),
273 .def = "0xffff",
274 .help = "Application Tag Mask used with Application Tag (Default: 0xffff)",
275 .category = FIO_OPT_C_ENGINE,
276 .group = FIO_OPT_G_IOURING,
277 },
278 {
279 .name = NULL,
280 },
281};
282
283static int io_uring_enter(struct ioring_data *ld, unsigned int to_submit,
284 unsigned int min_complete, unsigned int flags)
285{
286#ifdef FIO_ARCH_HAS_SYSCALL
287 return __do_syscall6(__NR_io_uring_enter, ld->ring_fd, to_submit,
288 min_complete, flags, NULL, 0);
289#else
290 return syscall(__NR_io_uring_enter, ld->ring_fd, to_submit,
291 min_complete, flags, NULL, 0);
292#endif
293}
294
295static int fio_ioring_prep(struct thread_data *td, struct io_u *io_u)
296{
297 struct ioring_data *ld = td->io_ops_data;
298 struct ioring_options *o = td->eo;
299 struct fio_file *f = io_u->file;
300 struct io_uring_sqe *sqe;
301
302 sqe = &ld->sqes[io_u->index];
303
304 if (o->registerfiles) {
305 sqe->fd = f->engine_pos;
306 sqe->flags = IOSQE_FIXED_FILE;
307 } else {
308 sqe->fd = f->fd;
309 sqe->flags = 0;
310 }
311
312 if (io_u->ddir == DDIR_READ || io_u->ddir == DDIR_WRITE) {
313 if (o->fixedbufs) {
314 sqe->opcode = fixed_ddir_to_op[io_u->ddir];
315 sqe->addr = (unsigned long) io_u->xfer_buf;
316 sqe->len = io_u->xfer_buflen;
317 sqe->buf_index = io_u->index;
318 } else {
319 struct iovec *iov = &ld->iovecs[io_u->index];
320
321 /*
322 * Update based on actual io_u, requeue could have
323 * adjusted these
324 */
325 iov->iov_base = io_u->xfer_buf;
326 iov->iov_len = io_u->xfer_buflen;
327
328 sqe->opcode = ddir_to_op[io_u->ddir][!!o->nonvectored];
329 if (o->nonvectored) {
330 sqe->addr = (unsigned long) iov->iov_base;
331 sqe->len = iov->iov_len;
332 } else {
333 sqe->addr = (unsigned long) iov;
334 sqe->len = 1;
335 }
336 }
337 sqe->rw_flags = 0;
338 if (!td->o.odirect && o->uncached)
339 sqe->rw_flags |= RWF_UNCACHED;
340 if (o->nowait)
341 sqe->rw_flags |= RWF_NOWAIT;
342
343 /*
344 * Since io_uring can have a submission context (sqthread_poll)
345 * that is different from the process context, we cannot rely on
346 * the IO priority set by ioprio_set() (options prio, prioclass,
347 * and priohint) to be inherited.
348 * td->ioprio will have the value of the "default prio", so set
349 * this unconditionally. This value might get overridden by
350 * fio_ioring_cmdprio_prep() if the option cmdprio_percentage or
351 * cmdprio_bssplit is used.
352 */
353 sqe->ioprio = td->ioprio;
354 sqe->off = io_u->offset;
355 } else if (ddir_sync(io_u->ddir)) {
356 sqe->ioprio = 0;
357 if (io_u->ddir == DDIR_SYNC_FILE_RANGE) {
358 sqe->off = f->first_write;
359 sqe->len = f->last_write - f->first_write;
360 sqe->sync_range_flags = td->o.sync_file_range;
361 sqe->opcode = IORING_OP_SYNC_FILE_RANGE;
362 } else {
363 sqe->off = 0;
364 sqe->addr = 0;
365 sqe->len = 0;
366 if (io_u->ddir == DDIR_DATASYNC)
367 sqe->fsync_flags |= IORING_FSYNC_DATASYNC;
368 sqe->opcode = IORING_OP_FSYNC;
369 }
370 }
371
372 if (o->force_async && ++ld->prepped == o->force_async) {
373 ld->prepped = 0;
374 sqe->flags |= IOSQE_ASYNC;
375 }
376
377 sqe->user_data = (unsigned long) io_u;
378 return 0;
379}
380
381static int fio_ioring_cmd_prep(struct thread_data *td, struct io_u *io_u)
382{
383 struct ioring_data *ld = td->io_ops_data;
384 struct ioring_options *o = td->eo;
385 struct fio_file *f = io_u->file;
386 struct nvme_uring_cmd *cmd;
387 struct io_uring_sqe *sqe;
388
389 /* only supports nvme_uring_cmd */
390 if (o->cmd_type != FIO_URING_CMD_NVME)
391 return -EINVAL;
392
393 if (io_u->ddir == DDIR_TRIM && td->io_ops->flags & FIO_ASYNCIO_SYNC_TRIM)
394 return 0;
395
396 sqe = &ld->sqes[(io_u->index) << 1];
397
398 if (o->registerfiles) {
399 sqe->fd = f->engine_pos;
400 sqe->flags = IOSQE_FIXED_FILE;
401 } else {
402 sqe->fd = f->fd;
403 }
404 sqe->rw_flags = 0;
405 if (!td->o.odirect && o->uncached)
406 sqe->rw_flags |= RWF_UNCACHED;
407 if (o->nowait)
408 sqe->rw_flags |= RWF_NOWAIT;
409
410 sqe->opcode = IORING_OP_URING_CMD;
411 sqe->user_data = (unsigned long) io_u;
412 if (o->nonvectored)
413 sqe->cmd_op = NVME_URING_CMD_IO;
414 else
415 sqe->cmd_op = NVME_URING_CMD_IO_VEC;
416 if (o->force_async && ++ld->prepped == o->force_async) {
417 ld->prepped = 0;
418 sqe->flags |= IOSQE_ASYNC;
419 }
420 if (o->fixedbufs) {
421 sqe->uring_cmd_flags = IORING_URING_CMD_FIXED;
422 sqe->buf_index = io_u->index;
423 }
424
425 cmd = (struct nvme_uring_cmd *)sqe->cmd;
426 return fio_nvme_uring_cmd_prep(cmd, io_u,
427 o->nonvectored ? NULL : &ld->iovecs[io_u->index],
428 &ld->dsm[io_u->index]);
429}
430
431static struct io_u *fio_ioring_event(struct thread_data *td, int event)
432{
433 struct ioring_data *ld = td->io_ops_data;
434 struct io_uring_cqe *cqe;
435 struct io_u *io_u;
436 unsigned index;
437
438 index = (event + ld->cq_ring_off) & ld->cq_ring_mask;
439
440 cqe = &ld->cq_ring.cqes[index];
441 io_u = (struct io_u *) (uintptr_t) cqe->user_data;
442
443 if (cqe->res != io_u->xfer_buflen) {
444 if (cqe->res > io_u->xfer_buflen)
445 io_u->error = -cqe->res;
446 else
447 io_u->resid = io_u->xfer_buflen - cqe->res;
448 } else
449 io_u->error = 0;
450
451 return io_u;
452}
453
454static struct io_u *fio_ioring_cmd_event(struct thread_data *td, int event)
455{
456 struct ioring_data *ld = td->io_ops_data;
457 struct ioring_options *o = td->eo;
458 struct io_uring_cqe *cqe;
459 struct io_u *io_u;
460 struct nvme_data *data;
461 unsigned index;
462 int ret;
463
464 index = (event + ld->cq_ring_off) & ld->cq_ring_mask;
465 if (o->cmd_type == FIO_URING_CMD_NVME)
466 index <<= 1;
467
468 cqe = &ld->cq_ring.cqes[index];
469 io_u = (struct io_u *) (uintptr_t) cqe->user_data;
470
471 if (cqe->res != 0)
472 io_u->error = -cqe->res;
473 else
474 io_u->error = 0;
475
476 if (o->cmd_type == FIO_URING_CMD_NVME) {
477 data = FILE_ENG_DATA(io_u->file);
478 if (data->pi_type && (io_u->ddir == DDIR_READ) && !o->pi_act) {
479 ret = fio_nvme_pi_verify(data, io_u);
480 if (ret)
481 io_u->error = ret;
482 }
483 }
484
485 return io_u;
486}
487
488static int fio_ioring_cqring_reap(struct thread_data *td, unsigned int events,
489 unsigned int max)
490{
491 struct ioring_data *ld = td->io_ops_data;
492 struct io_cq_ring *ring = &ld->cq_ring;
493 unsigned head, reaped = 0;
494
495 head = *ring->head;
496 do {
497 if (head == atomic_load_acquire(ring->tail))
498 break;
499 reaped++;
500 head++;
501 } while (reaped + events < max);
502
503 if (reaped)
504 atomic_store_release(ring->head, head);
505
506 return reaped;
507}
508
509static int fio_ioring_getevents(struct thread_data *td, unsigned int min,
510 unsigned int max, const struct timespec *t)
511{
512 struct ioring_data *ld = td->io_ops_data;
513 unsigned actual_min = td->o.iodepth_batch_complete_min == 0 ? 0 : min;
514 struct ioring_options *o = td->eo;
515 struct io_cq_ring *ring = &ld->cq_ring;
516 unsigned events = 0;
517 int r;
518
519 ld->cq_ring_off = *ring->head;
520 do {
521 r = fio_ioring_cqring_reap(td, events, max);
522 if (r) {
523 events += r;
524 max -= r;
525 if (actual_min != 0)
526 actual_min -= r;
527 continue;
528 }
529
530 if (!o->sqpoll_thread) {
531 r = io_uring_enter(ld, 0, actual_min,
532 IORING_ENTER_GETEVENTS);
533 if (r < 0) {
534 if (errno == EAGAIN || errno == EINTR)
535 continue;
536 r = -errno;
537 td_verror(td, errno, "io_uring_enter");
538 break;
539 }
540 }
541 } while (events < min);
542
543 return r < 0 ? r : events;
544}
545
546static inline void fio_ioring_cmd_nvme_pi(struct thread_data *td,
547 struct io_u *io_u)
548{
549 struct ioring_data *ld = td->io_ops_data;
550 struct ioring_options *o = td->eo;
551 struct nvme_uring_cmd *cmd;
552 struct io_uring_sqe *sqe;
553 struct nvme_cmd_ext_io_opts ext_opts = {0};
554 struct nvme_data *data = FILE_ENG_DATA(io_u->file);
555
556 if (io_u->ddir == DDIR_TRIM)
557 return;
558
559 sqe = &ld->sqes[(io_u->index) << 1];
560 cmd = (struct nvme_uring_cmd *)sqe->cmd;
561
562 if (data->pi_type) {
563 if (o->pi_act)
564 ext_opts.io_flags |= NVME_IO_PRINFO_PRACT;
565 ext_opts.io_flags |= o->prchk;
566 ext_opts.apptag = o->apptag;
567 ext_opts.apptag_mask = o->apptag_mask;
568 }
569
570 fio_nvme_pi_fill(cmd, io_u, &ext_opts);
571}
572
573static inline void fio_ioring_cmdprio_prep(struct thread_data *td,
574 struct io_u *io_u)
575{
576 struct ioring_data *ld = td->io_ops_data;
577 struct cmdprio *cmdprio = &ld->cmdprio;
578
579 if (fio_cmdprio_set_ioprio(td, cmdprio, io_u))
580 ld->sqes[io_u->index].ioprio = io_u->ioprio;
581}
582
583static enum fio_q_status fio_ioring_queue(struct thread_data *td,
584 struct io_u *io_u)
585{
586 struct ioring_data *ld = td->io_ops_data;
587 struct ioring_options *o = td->eo;
588 struct io_sq_ring *ring = &ld->sq_ring;
589 unsigned tail, next_tail;
590
591 fio_ro_check(td, io_u);
592
593 if (ld->queued == ld->iodepth)
594 return FIO_Q_BUSY;
595
596 if (io_u->ddir == DDIR_TRIM && td->io_ops->flags & FIO_ASYNCIO_SYNC_TRIM) {
597 if (ld->queued)
598 return FIO_Q_BUSY;
599
600 do_io_u_trim(td, io_u);
601
602 io_u_mark_submit(td, 1);
603 io_u_mark_complete(td, 1);
604 return FIO_Q_COMPLETED;
605 }
606
607 tail = *ring->tail;
608 next_tail = tail + 1;
609 if (next_tail == atomic_load_relaxed(ring->head))
610 return FIO_Q_BUSY;
611
612 if (ld->cmdprio.mode != CMDPRIO_MODE_NONE)
613 fio_ioring_cmdprio_prep(td, io_u);
614
615 if (!strcmp(td->io_ops->name, "io_uring_cmd") &&
616 o->cmd_type == FIO_URING_CMD_NVME)
617 fio_ioring_cmd_nvme_pi(td, io_u);
618
619 ring->array[tail & ld->sq_ring_mask] = io_u->index;
620 atomic_store_release(ring->tail, next_tail);
621
622 ld->queued++;
623 return FIO_Q_QUEUED;
624}
625
626static void fio_ioring_queued(struct thread_data *td, int start, int nr)
627{
628 struct ioring_data *ld = td->io_ops_data;
629 struct timespec now;
630
631 if (!fio_fill_issue_time(td))
632 return;
633
634 fio_gettime(&now, NULL);
635
636 while (nr--) {
637 struct io_sq_ring *ring = &ld->sq_ring;
638 int index = ring->array[start & ld->sq_ring_mask];
639 struct io_u *io_u = ld->io_u_index[index];
640
641 memcpy(&io_u->issue_time, &now, sizeof(now));
642 io_u_queued(td, io_u);
643
644 start++;
645 }
646
647 /*
648 * only used for iolog
649 */
650 if (td->o.read_iolog_file)
651 memcpy(&td->last_issue, &now, sizeof(now));
652}
653
654static int fio_ioring_commit(struct thread_data *td)
655{
656 struct ioring_data *ld = td->io_ops_data;
657 struct ioring_options *o = td->eo;
658 int ret;
659
660 if (!ld->queued)
661 return 0;
662
663 /*
664 * Kernel side does submission. just need to check if the ring is
665 * flagged as needing a kick, if so, call io_uring_enter(). This
666 * only happens if we've been idle too long.
667 */
668 if (o->sqpoll_thread) {
669 struct io_sq_ring *ring = &ld->sq_ring;
670 unsigned start = *ld->sq_ring.tail - ld->queued;
671 unsigned flags;
672
673 flags = atomic_load_relaxed(ring->flags);
674 if (flags & IORING_SQ_NEED_WAKEUP)
675 io_uring_enter(ld, ld->queued, 0,
676 IORING_ENTER_SQ_WAKEUP);
677 fio_ioring_queued(td, start, ld->queued);
678 io_u_mark_submit(td, ld->queued);
679
680 ld->queued = 0;
681 return 0;
682 }
683
684 do {
685 unsigned start = *ld->sq_ring.head;
686 long nr = ld->queued;
687
688 ret = io_uring_enter(ld, nr, 0, IORING_ENTER_GETEVENTS);
689 if (ret > 0) {
690 fio_ioring_queued(td, start, ret);
691 io_u_mark_submit(td, ret);
692
693 ld->queued -= ret;
694 ret = 0;
695 } else if (!ret) {
696 io_u_mark_submit(td, ret);
697 continue;
698 } else {
699 if (errno == EAGAIN || errno == EINTR) {
700 ret = fio_ioring_cqring_reap(td, 0, ld->queued);
701 if (ret)
702 continue;
703 /* Shouldn't happen */
704 usleep(1);
705 continue;
706 }
707 ret = -errno;
708 td_verror(td, errno, "io_uring_enter submit");
709 break;
710 }
711 } while (ld->queued);
712
713 return ret;
714}
715
716static void fio_ioring_unmap(struct ioring_data *ld)
717{
718 int i;
719
720 for (i = 0; i < FIO_ARRAY_SIZE(ld->mmap); i++)
721 munmap(ld->mmap[i].ptr, ld->mmap[i].len);
722 close(ld->ring_fd);
723}
724
725static void fio_ioring_cleanup(struct thread_data *td)
726{
727 struct ioring_data *ld = td->io_ops_data;
728
729 if (ld) {
730 if (!(td->flags & TD_F_CHILD))
731 fio_ioring_unmap(ld);
732
733 fio_cmdprio_cleanup(&ld->cmdprio);
734 free(ld->io_u_index);
735 free(ld->md_buf);
736 free(ld->iovecs);
737 free(ld->fds);
738 free(ld->dsm);
739 free(ld);
740 }
741}
742
743static int fio_ioring_mmap(struct ioring_data *ld, struct io_uring_params *p)
744{
745 struct io_sq_ring *sring = &ld->sq_ring;
746 struct io_cq_ring *cring = &ld->cq_ring;
747 void *ptr;
748
749 ld->mmap[0].len = p->sq_off.array + p->sq_entries * sizeof(__u32);
750 ptr = mmap(0, ld->mmap[0].len, PROT_READ | PROT_WRITE,
751 MAP_SHARED | MAP_POPULATE, ld->ring_fd,
752 IORING_OFF_SQ_RING);
753 ld->mmap[0].ptr = ptr;
754 sring->head = ptr + p->sq_off.head;
755 sring->tail = ptr + p->sq_off.tail;
756 sring->ring_mask = ptr + p->sq_off.ring_mask;
757 sring->ring_entries = ptr + p->sq_off.ring_entries;
758 sring->flags = ptr + p->sq_off.flags;
759 sring->array = ptr + p->sq_off.array;
760 ld->sq_ring_mask = *sring->ring_mask;
761
762 if (p->flags & IORING_SETUP_SQE128)
763 ld->mmap[1].len = 2 * p->sq_entries * sizeof(struct io_uring_sqe);
764 else
765 ld->mmap[1].len = p->sq_entries * sizeof(struct io_uring_sqe);
766 ld->sqes = mmap(0, ld->mmap[1].len, PROT_READ | PROT_WRITE,
767 MAP_SHARED | MAP_POPULATE, ld->ring_fd,
768 IORING_OFF_SQES);
769 ld->mmap[1].ptr = ld->sqes;
770
771 if (p->flags & IORING_SETUP_CQE32) {
772 ld->mmap[2].len = p->cq_off.cqes +
773 2 * p->cq_entries * sizeof(struct io_uring_cqe);
774 } else {
775 ld->mmap[2].len = p->cq_off.cqes +
776 p->cq_entries * sizeof(struct io_uring_cqe);
777 }
778 ptr = mmap(0, ld->mmap[2].len, PROT_READ | PROT_WRITE,
779 MAP_SHARED | MAP_POPULATE, ld->ring_fd,
780 IORING_OFF_CQ_RING);
781 ld->mmap[2].ptr = ptr;
782 cring->head = ptr + p->cq_off.head;
783 cring->tail = ptr + p->cq_off.tail;
784 cring->ring_mask = ptr + p->cq_off.ring_mask;
785 cring->ring_entries = ptr + p->cq_off.ring_entries;
786 cring->cqes = ptr + p->cq_off.cqes;
787 ld->cq_ring_mask = *cring->ring_mask;
788 return 0;
789}
790
791static void fio_ioring_probe(struct thread_data *td)
792{
793 struct ioring_data *ld = td->io_ops_data;
794 struct ioring_options *o = td->eo;
795 struct io_uring_probe *p;
796 int ret;
797
798 /* already set by user, don't touch */
799 if (o->nonvectored != -1)
800 return;
801
802 /* default to off, as that's always safe */
803 o->nonvectored = 0;
804
805 p = calloc(1, sizeof(*p) + 256 * sizeof(struct io_uring_probe_op));
806 if (!p)
807 return;
808
809 ret = syscall(__NR_io_uring_register, ld->ring_fd,
810 IORING_REGISTER_PROBE, p, 256);
811 if (ret < 0)
812 goto out;
813
814 if (IORING_OP_WRITE > p->ops_len)
815 goto out;
816
817 if ((p->ops[IORING_OP_READ].flags & IO_URING_OP_SUPPORTED) &&
818 (p->ops[IORING_OP_WRITE].flags & IO_URING_OP_SUPPORTED))
819 o->nonvectored = 1;
820out:
821 free(p);
822}
823
824static int fio_ioring_queue_init(struct thread_data *td)
825{
826 struct ioring_data *ld = td->io_ops_data;
827 struct ioring_options *o = td->eo;
828 int depth = td->o.iodepth;
829 struct io_uring_params p;
830 int ret;
831
832 memset(&p, 0, sizeof(p));
833
834 if (o->hipri)
835 p.flags |= IORING_SETUP_IOPOLL;
836 if (o->sqpoll_thread) {
837 p.flags |= IORING_SETUP_SQPOLL;
838 if (o->sqpoll_set) {
839 p.flags |= IORING_SETUP_SQ_AFF;
840 p.sq_thread_cpu = o->sqpoll_cpu;
841 }
842
843 /*
844 * Submission latency for sqpoll_thread is just the time it
845 * takes to fill in the SQ ring entries, and any syscall if
846 * IORING_SQ_NEED_WAKEUP is set, we don't need to log that time
847 * separately.
848 */
849 td->o.disable_slat = 1;
850 }
851
852 /*
853 * Clamp CQ ring size at our SQ ring size, we don't need more entries
854 * than that.
855 */
856 p.flags |= IORING_SETUP_CQSIZE;
857 p.cq_entries = depth;
858
859 /*
860 * Setup COOP_TASKRUN as we don't need to get IPI interrupted for
861 * completing IO operations.
862 */
863 p.flags |= IORING_SETUP_COOP_TASKRUN;
864
865 /*
866 * io_uring is always a single issuer, and we can defer task_work
867 * runs until we reap events.
868 */
869 p.flags |= IORING_SETUP_SINGLE_ISSUER | IORING_SETUP_DEFER_TASKRUN;
870
871retry:
872 ret = syscall(__NR_io_uring_setup, depth, &p);
873 if (ret < 0) {
874 if (errno == EINVAL && p.flags & IORING_SETUP_DEFER_TASKRUN) {
875 p.flags &= ~IORING_SETUP_DEFER_TASKRUN;
876 p.flags &= ~IORING_SETUP_SINGLE_ISSUER;
877 goto retry;
878 }
879 if (errno == EINVAL && p.flags & IORING_SETUP_COOP_TASKRUN) {
880 p.flags &= ~IORING_SETUP_COOP_TASKRUN;
881 goto retry;
882 }
883 if (errno == EINVAL && p.flags & IORING_SETUP_CQSIZE) {
884 p.flags &= ~IORING_SETUP_CQSIZE;
885 goto retry;
886 }
887 return ret;
888 }
889
890 ld->ring_fd = ret;
891
892 fio_ioring_probe(td);
893
894 if (o->fixedbufs) {
895 ret = syscall(__NR_io_uring_register, ld->ring_fd,
896 IORING_REGISTER_BUFFERS, ld->iovecs, depth);
897 if (ret < 0)
898 return ret;
899 }
900
901 return fio_ioring_mmap(ld, &p);
902}
903
904static int fio_ioring_cmd_queue_init(struct thread_data *td)
905{
906 struct ioring_data *ld = td->io_ops_data;
907 struct ioring_options *o = td->eo;
908 int depth = td->o.iodepth;
909 struct io_uring_params p;
910 int ret;
911
912 memset(&p, 0, sizeof(p));
913
914 if (o->hipri)
915 p.flags |= IORING_SETUP_IOPOLL;
916 if (o->sqpoll_thread) {
917 p.flags |= IORING_SETUP_SQPOLL;
918 if (o->sqpoll_set) {
919 p.flags |= IORING_SETUP_SQ_AFF;
920 p.sq_thread_cpu = o->sqpoll_cpu;
921 }
922
923 /*
924 * Submission latency for sqpoll_thread is just the time it
925 * takes to fill in the SQ ring entries, and any syscall if
926 * IORING_SQ_NEED_WAKEUP is set, we don't need to log that time
927 * separately.
928 */
929 td->o.disable_slat = 1;
930 }
931 if (o->cmd_type == FIO_URING_CMD_NVME) {
932 p.flags |= IORING_SETUP_SQE128;
933 p.flags |= IORING_SETUP_CQE32;
934 }
935
936 /*
937 * Clamp CQ ring size at our SQ ring size, we don't need more entries
938 * than that.
939 */
940 p.flags |= IORING_SETUP_CQSIZE;
941 p.cq_entries = depth;
942
943 /*
944 * Setup COOP_TASKRUN as we don't need to get IPI interrupted for
945 * completing IO operations.
946 */
947 p.flags |= IORING_SETUP_COOP_TASKRUN;
948
949 /*
950 * io_uring is always a single issuer, and we can defer task_work
951 * runs until we reap events.
952 */
953 p.flags |= IORING_SETUP_SINGLE_ISSUER | IORING_SETUP_DEFER_TASKRUN;
954
955retry:
956 ret = syscall(__NR_io_uring_setup, depth, &p);
957 if (ret < 0) {
958 if (errno == EINVAL && p.flags & IORING_SETUP_DEFER_TASKRUN) {
959 p.flags &= ~IORING_SETUP_DEFER_TASKRUN;
960 p.flags &= ~IORING_SETUP_SINGLE_ISSUER;
961 goto retry;
962 }
963 if (errno == EINVAL && p.flags & IORING_SETUP_COOP_TASKRUN) {
964 p.flags &= ~IORING_SETUP_COOP_TASKRUN;
965 goto retry;
966 }
967 if (errno == EINVAL && p.flags & IORING_SETUP_CQSIZE) {
968 p.flags &= ~IORING_SETUP_CQSIZE;
969 goto retry;
970 }
971 return ret;
972 }
973
974 ld->ring_fd = ret;
975
976 fio_ioring_probe(td);
977
978 if (o->fixedbufs) {
979 ret = syscall(__NR_io_uring_register, ld->ring_fd,
980 IORING_REGISTER_BUFFERS, ld->iovecs, depth);
981 if (ret < 0)
982 return ret;
983 }
984
985 return fio_ioring_mmap(ld, &p);
986}
987
988static int fio_ioring_register_files(struct thread_data *td)
989{
990 struct ioring_data *ld = td->io_ops_data;
991 struct fio_file *f;
992 unsigned int i;
993 int ret;
994
995 ld->fds = calloc(td->o.nr_files, sizeof(int));
996
997 for_each_file(td, f, i) {
998 ret = generic_open_file(td, f);
999 if (ret)
1000 goto err;
1001 ld->fds[i] = f->fd;
1002 f->engine_pos = i;
1003 }
1004
1005 ret = syscall(__NR_io_uring_register, ld->ring_fd,
1006 IORING_REGISTER_FILES, ld->fds, td->o.nr_files);
1007 if (ret) {
1008err:
1009 free(ld->fds);
1010 ld->fds = NULL;
1011 }
1012
1013 /*
1014 * Pretend the file is closed again, and really close it if we hit
1015 * an error.
1016 */
1017 for_each_file(td, f, i) {
1018 if (ret) {
1019 int fio_unused ret2;
1020 ret2 = generic_close_file(td, f);
1021 } else
1022 f->fd = -1;
1023 }
1024
1025 return ret;
1026}
1027
1028static int fio_ioring_post_init(struct thread_data *td)
1029{
1030 struct ioring_data *ld = td->io_ops_data;
1031 struct ioring_options *o = td->eo;
1032 struct io_u *io_u;
1033 int err, i;
1034
1035 for (i = 0; i < td->o.iodepth; i++) {
1036 struct iovec *iov = &ld->iovecs[i];
1037
1038 io_u = ld->io_u_index[i];
1039 iov->iov_base = io_u->buf;
1040 iov->iov_len = td_max_bs(td);
1041 }
1042
1043 err = fio_ioring_queue_init(td);
1044 if (err) {
1045 int init_err = errno;
1046
1047 if (init_err == ENOSYS)
1048 log_err("fio: your kernel doesn't support io_uring\n");
1049 td_verror(td, init_err, "io_queue_init");
1050 return 1;
1051 }
1052
1053 for (i = 0; i < td->o.iodepth; i++) {
1054 struct io_uring_sqe *sqe;
1055
1056 sqe = &ld->sqes[i];
1057 memset(sqe, 0, sizeof(*sqe));
1058 }
1059
1060 if (o->registerfiles) {
1061 err = fio_ioring_register_files(td);
1062 if (err) {
1063 td_verror(td, errno, "ioring_register_files");
1064 return 1;
1065 }
1066 }
1067
1068 return 0;
1069}
1070
1071static int fio_ioring_cmd_post_init(struct thread_data *td)
1072{
1073 struct ioring_data *ld = td->io_ops_data;
1074 struct ioring_options *o = td->eo;
1075 struct io_u *io_u;
1076 int err, i;
1077
1078 for (i = 0; i < td->o.iodepth; i++) {
1079 struct iovec *iov = &ld->iovecs[i];
1080
1081 io_u = ld->io_u_index[i];
1082 iov->iov_base = io_u->buf;
1083 iov->iov_len = td_max_bs(td);
1084 }
1085
1086 err = fio_ioring_cmd_queue_init(td);
1087 if (err) {
1088 int init_err = errno;
1089
1090 td_verror(td, init_err, "io_queue_init");
1091 return 1;
1092 }
1093
1094 for (i = 0; i < td->o.iodepth; i++) {
1095 struct io_uring_sqe *sqe;
1096
1097 if (o->cmd_type == FIO_URING_CMD_NVME) {
1098 sqe = &ld->sqes[i << 1];
1099 memset(sqe, 0, 2 * sizeof(*sqe));
1100 } else {
1101 sqe = &ld->sqes[i];
1102 memset(sqe, 0, sizeof(*sqe));
1103 }
1104 }
1105
1106 if (o->registerfiles) {
1107 err = fio_ioring_register_files(td);
1108 if (err) {
1109 td_verror(td, errno, "ioring_register_files");
1110 return 1;
1111 }
1112 }
1113
1114 return 0;
1115}
1116
1117static void parse_prchk_flags(struct ioring_options *o)
1118{
1119 if (!o->pi_chk)
1120 return;
1121
1122 if (strstr(o->pi_chk, "GUARD") != NULL)
1123 o->prchk = NVME_IO_PRINFO_PRCHK_GUARD;
1124 if (strstr(o->pi_chk, "REFTAG") != NULL)
1125 o->prchk |= NVME_IO_PRINFO_PRCHK_REF;
1126 if (strstr(o->pi_chk, "APPTAG") != NULL)
1127 o->prchk |= NVME_IO_PRINFO_PRCHK_APP;
1128}
1129
1130static int fio_ioring_init(struct thread_data *td)
1131{
1132 struct ioring_options *o = td->eo;
1133 struct ioring_data *ld;
1134 unsigned long long md_size;
1135 int ret;
1136
1137 /* sqthread submission requires registered files */
1138 if (o->sqpoll_thread)
1139 o->registerfiles = 1;
1140
1141 if (o->registerfiles && td->o.nr_files != td->o.open_files) {
1142 log_err("fio: io_uring registered files require nr_files to "
1143 "be identical to open_files\n");
1144 return 1;
1145 }
1146
1147 ld = calloc(1, sizeof(*ld));
1148
1149 /* ring depth must be a power-of-2 */
1150 ld->iodepth = td->o.iodepth;
1151 td->o.iodepth = roundup_pow2(td->o.iodepth);
1152
1153 /* io_u index */
1154 ld->io_u_index = calloc(td->o.iodepth, sizeof(struct io_u *));
1155
1156 /*
1157 * metadata buffer for nvme command.
1158 * We are only supporting iomem=malloc / mem=malloc as of now.
1159 */
1160 if (!strcmp(td->io_ops->name, "io_uring_cmd") &&
1161 (o->cmd_type == FIO_URING_CMD_NVME) && o->md_per_io_size) {
1162 md_size = (unsigned long long) o->md_per_io_size
1163 * (unsigned long long) td->o.iodepth;
1164 md_size += page_mask + td->o.mem_align;
1165 if (td->o.mem_align && td->o.mem_align > page_size)
1166 md_size += td->o.mem_align - page_size;
1167 if (td->o.mem_type == MEM_MALLOC) {
1168 ld->md_buf = malloc(md_size);
1169 if (!ld->md_buf) {
1170 free(ld);
1171 return 1;
1172 }
1173 } else {
1174 log_err("fio: Only iomem=malloc or mem=malloc is supported\n");
1175 free(ld);
1176 return 1;
1177 }
1178 }
1179 parse_prchk_flags(o);
1180
1181 ld->iovecs = calloc(td->o.iodepth, sizeof(struct iovec));
1182
1183 td->io_ops_data = ld;
1184
1185 ret = fio_cmdprio_init(td, &ld->cmdprio, &o->cmdprio_options);
1186 if (ret) {
1187 td_verror(td, EINVAL, "fio_ioring_init");
1188 return 1;
1189 }
1190
1191 /*
1192 * For io_uring_cmd, trims are async operations unless we are operating
1193 * in zbd mode where trim means zone reset.
1194 */
1195 if (!strcmp(td->io_ops->name, "io_uring_cmd") && td_trim(td) &&
1196 td->o.zone_mode == ZONE_MODE_ZBD)
1197 td->io_ops->flags |= FIO_ASYNCIO_SYNC_TRIM;
1198 else
1199 ld->dsm = calloc(td->o.iodepth, sizeof(*ld->dsm));
1200
1201 return 0;
1202}
1203
1204static int fio_ioring_io_u_init(struct thread_data *td, struct io_u *io_u)
1205{
1206 struct ioring_data *ld = td->io_ops_data;
1207 struct ioring_options *o = td->eo;
1208 struct nvme_pi_data *pi_data;
1209 char *p;
1210
1211 ld->io_u_index[io_u->index] = io_u;
1212
1213 if (!strcmp(td->io_ops->name, "io_uring_cmd")) {
1214 p = PTR_ALIGN(ld->md_buf, page_mask) + td->o.mem_align;
1215 p += o->md_per_io_size * io_u->index;
1216 io_u->mmap_data = p;
1217
1218 if (!o->pi_act) {
1219 pi_data = calloc(1, sizeof(*pi_data));
1220 pi_data->io_flags |= o->prchk;
1221 pi_data->apptag_mask = o->apptag_mask;
1222 pi_data->apptag = o->apptag;
1223 io_u->engine_data = pi_data;
1224 }
1225 }
1226
1227 return 0;
1228}
1229
1230static void fio_ioring_io_u_free(struct thread_data *td, struct io_u *io_u)
1231{
1232 struct ioring_options *o = td->eo;
1233 struct nvme_pi *pi;
1234
1235 if (!strcmp(td->io_ops->name, "io_uring_cmd") &&
1236 (o->cmd_type == FIO_URING_CMD_NVME)) {
1237 pi = io_u->engine_data;
1238 free(pi);
1239 io_u->engine_data = NULL;
1240 }
1241}
1242
1243static int fio_ioring_open_file(struct thread_data *td, struct fio_file *f)
1244{
1245 struct ioring_data *ld = td->io_ops_data;
1246 struct ioring_options *o = td->eo;
1247
1248 if (!ld || !o->registerfiles)
1249 return generic_open_file(td, f);
1250
1251 f->fd = ld->fds[f->engine_pos];
1252 return 0;
1253}
1254
1255static int fio_ioring_cmd_open_file(struct thread_data *td, struct fio_file *f)
1256{
1257 struct ioring_data *ld = td->io_ops_data;
1258 struct ioring_options *o = td->eo;
1259
1260 if (o->cmd_type == FIO_URING_CMD_NVME) {
1261 struct nvme_data *data = NULL;
1262 unsigned int lba_size = 0;
1263 __u64 nlba = 0;
1264 int ret;
1265
1266 /* Store the namespace-id and lba size. */
1267 data = FILE_ENG_DATA(f);
1268 if (data == NULL) {
1269 data = calloc(1, sizeof(struct nvme_data));
1270 ret = fio_nvme_get_info(f, &nlba, o->pi_act, data);
1271 if (ret) {
1272 free(data);
1273 return ret;
1274 }
1275
1276 FILE_SET_ENG_DATA(f, data);
1277 }
1278
1279 lba_size = data->lba_ext ? data->lba_ext : data->lba_size;
1280
1281 for_each_rw_ddir(ddir) {
1282 if (td->o.min_bs[ddir] % lba_size || td->o.max_bs[ddir] % lba_size) {
1283 if (data->lba_ext) {
1284 log_err("%s: block size must be a multiple of %u "
1285 "(LBA data size + Metadata size)\n", f->file_name, lba_size);
1286 if (td->o.min_bs[ddir] == td->o.max_bs[ddir] &&
1287 !(td->o.min_bs[ddir] % data->lba_size)) {
1288 /* fixed block size is actually a multiple of LBA data size */
1289 unsigned long long suggestion = lba_size *
1290 (td->o.min_bs[ddir] / data->lba_size);
1291 log_err("Did you mean to use a block size of %llu?\n", suggestion);
1292 }
1293 } else {
1294 log_err("%s: block size must be a multiple of LBA data size\n",
1295 f->file_name);
1296 }
1297 td_verror(td, EINVAL, "fio_ioring_cmd_open_file");
1298 return 1;
1299 }
1300 if (data->ms && !data->lba_ext && ddir != DDIR_TRIM &&
1301 (o->md_per_io_size < ((td->o.max_bs[ddir] / data->lba_size) *
1302 data->ms))) {
1303 log_err("%s: md_per_io_size should be at least %llu bytes\n",
1304 f->file_name,
1305 ((td->o.max_bs[ddir] / data->lba_size) * data->ms));
1306 td_verror(td, EINVAL, "fio_ioring_cmd_open_file");
1307 return 1;
1308 }
1309 }
1310
1311 /*
1312 * For extended logical block sizes we cannot use verify when
1313 * end to end data protection checks are enabled, as the PI
1314 * section of data buffer conflicts with verify.
1315 */
1316 if (data->ms && data->pi_type && data->lba_ext &&
1317 td->o.verify != VERIFY_NONE) {
1318 log_err("%s: for extended LBA, verify cannot be used when E2E data protection is enabled\n",
1319 f->file_name);
1320 td_verror(td, EINVAL, "fio_ioring_cmd_open_file");
1321 return 1;
1322 }
1323 }
1324 if (!ld || !o->registerfiles)
1325 return generic_open_file(td, f);
1326
1327 f->fd = ld->fds[f->engine_pos];
1328 return 0;
1329}
1330
1331static int fio_ioring_close_file(struct thread_data *td, struct fio_file *f)
1332{
1333 struct ioring_data *ld = td->io_ops_data;
1334 struct ioring_options *o = td->eo;
1335
1336 if (!ld || !o->registerfiles)
1337 return generic_close_file(td, f);
1338
1339 f->fd = -1;
1340 return 0;
1341}
1342
1343static int fio_ioring_cmd_close_file(struct thread_data *td,
1344 struct fio_file *f)
1345{
1346 struct ioring_data *ld = td->io_ops_data;
1347 struct ioring_options *o = td->eo;
1348
1349 if (o->cmd_type == FIO_URING_CMD_NVME) {
1350 struct nvme_data *data = FILE_ENG_DATA(f);
1351
1352 FILE_SET_ENG_DATA(f, NULL);
1353 free(data);
1354 }
1355 if (!ld || !o->registerfiles)
1356 return generic_close_file(td, f);
1357
1358 f->fd = -1;
1359 return 0;
1360}
1361
1362static int fio_ioring_cmd_get_file_size(struct thread_data *td,
1363 struct fio_file *f)
1364{
1365 struct ioring_options *o = td->eo;
1366
1367 if (fio_file_size_known(f))
1368 return 0;
1369
1370 if (o->cmd_type == FIO_URING_CMD_NVME) {
1371 struct nvme_data *data = NULL;
1372 __u64 nlba = 0;
1373 int ret;
1374
1375 data = calloc(1, sizeof(struct nvme_data));
1376 ret = fio_nvme_get_info(f, &nlba, o->pi_act, data);
1377 if (ret) {
1378 free(data);
1379 return ret;
1380 }
1381
1382 f->real_file_size = data->lba_size * nlba;
1383 fio_file_set_size_known(f);
1384
1385 FILE_SET_ENG_DATA(f, data);
1386 return 0;
1387 }
1388 return generic_get_file_size(td, f);
1389}
1390
1391static int fio_ioring_cmd_get_zoned_model(struct thread_data *td,
1392 struct fio_file *f,
1393 enum zbd_zoned_model *model)
1394{
1395 return fio_nvme_get_zoned_model(td, f, model);
1396}
1397
1398static int fio_ioring_cmd_report_zones(struct thread_data *td,
1399 struct fio_file *f, uint64_t offset,
1400 struct zbd_zone *zbdz,
1401 unsigned int nr_zones)
1402{
1403 return fio_nvme_report_zones(td, f, offset, zbdz, nr_zones);
1404}
1405
1406static int fio_ioring_cmd_reset_wp(struct thread_data *td, struct fio_file *f,
1407 uint64_t offset, uint64_t length)
1408{
1409 return fio_nvme_reset_wp(td, f, offset, length);
1410}
1411
1412static int fio_ioring_cmd_get_max_open_zones(struct thread_data *td,
1413 struct fio_file *f,
1414 unsigned int *max_open_zones)
1415{
1416 return fio_nvme_get_max_open_zones(td, f, max_open_zones);
1417}
1418
1419static int fio_ioring_cmd_fetch_ruhs(struct thread_data *td, struct fio_file *f,
1420 struct fio_ruhs_info *fruhs_info)
1421{
1422 struct nvme_fdp_ruh_status *ruhs;
1423 int bytes, ret, i;
1424
1425 bytes = sizeof(*ruhs) + FDP_MAX_RUHS * sizeof(struct nvme_fdp_ruh_status_desc);
1426 ruhs = scalloc(1, bytes);
1427 if (!ruhs)
1428 return -ENOMEM;
1429
1430 ret = fio_nvme_iomgmt_ruhs(td, f, ruhs, bytes);
1431 if (ret)
1432 goto free;
1433
1434 fruhs_info->nr_ruhs = le16_to_cpu(ruhs->nruhsd);
1435 for (i = 0; i < fruhs_info->nr_ruhs; i++)
1436 fruhs_info->plis[i] = le16_to_cpu(ruhs->ruhss[i].pid);
1437free:
1438 sfree(ruhs);
1439 return ret;
1440}
1441
1442static struct ioengine_ops ioengine_uring = {
1443 .name = "io_uring",
1444 .version = FIO_IOOPS_VERSION,
1445 .flags = FIO_ASYNCIO_SYNC_TRIM | FIO_NO_OFFLOAD |
1446 FIO_ASYNCIO_SETS_ISSUE_TIME,
1447 .init = fio_ioring_init,
1448 .post_init = fio_ioring_post_init,
1449 .io_u_init = fio_ioring_io_u_init,
1450 .prep = fio_ioring_prep,
1451 .queue = fio_ioring_queue,
1452 .commit = fio_ioring_commit,
1453 .getevents = fio_ioring_getevents,
1454 .event = fio_ioring_event,
1455 .cleanup = fio_ioring_cleanup,
1456 .open_file = fio_ioring_open_file,
1457 .close_file = fio_ioring_close_file,
1458 .get_file_size = generic_get_file_size,
1459 .options = options,
1460 .option_struct_size = sizeof(struct ioring_options),
1461};
1462
1463static struct ioengine_ops ioengine_uring_cmd = {
1464 .name = "io_uring_cmd",
1465 .version = FIO_IOOPS_VERSION,
1466 .flags = FIO_NO_OFFLOAD | FIO_MEMALIGN | FIO_RAWIO |
1467 FIO_ASYNCIO_SETS_ISSUE_TIME,
1468 .init = fio_ioring_init,
1469 .post_init = fio_ioring_cmd_post_init,
1470 .io_u_init = fio_ioring_io_u_init,
1471 .io_u_free = fio_ioring_io_u_free,
1472 .prep = fio_ioring_cmd_prep,
1473 .queue = fio_ioring_queue,
1474 .commit = fio_ioring_commit,
1475 .getevents = fio_ioring_getevents,
1476 .event = fio_ioring_cmd_event,
1477 .cleanup = fio_ioring_cleanup,
1478 .open_file = fio_ioring_cmd_open_file,
1479 .close_file = fio_ioring_cmd_close_file,
1480 .get_file_size = fio_ioring_cmd_get_file_size,
1481 .get_zoned_model = fio_ioring_cmd_get_zoned_model,
1482 .report_zones = fio_ioring_cmd_report_zones,
1483 .reset_wp = fio_ioring_cmd_reset_wp,
1484 .get_max_open_zones = fio_ioring_cmd_get_max_open_zones,
1485 .options = options,
1486 .option_struct_size = sizeof(struct ioring_options),
1487 .fdp_fetch_ruhs = fio_ioring_cmd_fetch_ruhs,
1488};
1489
1490static void fio_init fio_ioring_register(void)
1491{
1492 register_ioengine(&ioengine_uring);
1493 register_ioengine(&ioengine_uring_cmd);
1494}
1495
1496static void fio_exit fio_ioring_unregister(void)
1497{
1498 unregister_ioengine(&ioengine_uring);
1499 unregister_ioengine(&ioengine_uring_cmd);
1500}
1501#endif
fio - Flexible IO Tester