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t/zbd: avoid test case 31 failure with small devices
[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 *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 struct nvme_dsm *dsm;
389 void *ptr = ld->dsm;
390 unsigned int dsm_size;
391
392 /* only supports nvme_uring_cmd */
393 if (o->cmd_type != FIO_URING_CMD_NVME)
394 return -EINVAL;
395
396 if (io_u->ddir == DDIR_TRIM && td->io_ops->flags & FIO_ASYNCIO_SYNC_TRIM)
397 return 0;
398
399 sqe = &ld->sqes[(io_u->index) << 1];
400
401 if (o->registerfiles) {
402 sqe->fd = f->engine_pos;
403 sqe->flags = IOSQE_FIXED_FILE;
404 } else {
405 sqe->fd = f->fd;
406 }
407 sqe->rw_flags = 0;
408 if (!td->o.odirect && o->uncached)
409 sqe->rw_flags |= RWF_UNCACHED;
410 if (o->nowait)
411 sqe->rw_flags |= RWF_NOWAIT;
412
413 sqe->opcode = IORING_OP_URING_CMD;
414 sqe->user_data = (unsigned long) io_u;
415 if (o->nonvectored)
416 sqe->cmd_op = NVME_URING_CMD_IO;
417 else
418 sqe->cmd_op = NVME_URING_CMD_IO_VEC;
419 if (o->force_async && ++ld->prepped == o->force_async) {
420 ld->prepped = 0;
421 sqe->flags |= IOSQE_ASYNC;
422 }
423 if (o->fixedbufs) {
424 sqe->uring_cmd_flags = IORING_URING_CMD_FIXED;
425 sqe->buf_index = io_u->index;
426 }
427
428 cmd = (struct nvme_uring_cmd *)sqe->cmd;
429 dsm_size = sizeof(*ld->dsm) + td->o.num_range * sizeof(struct nvme_dsm_range);
430 ptr += io_u->index * dsm_size;
431 dsm = (struct nvme_dsm *)ptr;
432
433 return fio_nvme_uring_cmd_prep(cmd, io_u,
434 o->nonvectored ? NULL : &ld->iovecs[io_u->index],
435 dsm);
436}
437
438static struct io_u *fio_ioring_event(struct thread_data *td, int event)
439{
440 struct ioring_data *ld = td->io_ops_data;
441 struct io_uring_cqe *cqe;
442 struct io_u *io_u;
443 unsigned index;
444
445 index = (event + ld->cq_ring_off) & ld->cq_ring_mask;
446
447 cqe = &ld->cq_ring.cqes[index];
448 io_u = (struct io_u *) (uintptr_t) cqe->user_data;
449
450 if (cqe->res != io_u->xfer_buflen) {
451 if (cqe->res > io_u->xfer_buflen)
452 io_u->error = -cqe->res;
453 else
454 io_u->resid = io_u->xfer_buflen - cqe->res;
455 } else
456 io_u->error = 0;
457
458 return io_u;
459}
460
461static struct io_u *fio_ioring_cmd_event(struct thread_data *td, int event)
462{
463 struct ioring_data *ld = td->io_ops_data;
464 struct ioring_options *o = td->eo;
465 struct io_uring_cqe *cqe;
466 struct io_u *io_u;
467 struct nvme_data *data;
468 unsigned index;
469 int ret;
470
471 index = (event + ld->cq_ring_off) & ld->cq_ring_mask;
472 if (o->cmd_type == FIO_URING_CMD_NVME)
473 index <<= 1;
474
475 cqe = &ld->cq_ring.cqes[index];
476 io_u = (struct io_u *) (uintptr_t) cqe->user_data;
477
478 if (cqe->res != 0) {
479 io_u->error = -cqe->res;
480 return io_u;
481 } else {
482 io_u->error = 0;
483 }
484
485 if (o->cmd_type == FIO_URING_CMD_NVME) {
486 data = FILE_ENG_DATA(io_u->file);
487 if (data->pi_type && (io_u->ddir == DDIR_READ) && !o->pi_act) {
488 ret = fio_nvme_pi_verify(data, io_u);
489 if (ret)
490 io_u->error = ret;
491 }
492 }
493
494 return io_u;
495}
496
497static int fio_ioring_cqring_reap(struct thread_data *td, unsigned int events,
498 unsigned int max)
499{
500 struct ioring_data *ld = td->io_ops_data;
501 struct io_cq_ring *ring = &ld->cq_ring;
502 unsigned head, reaped = 0;
503
504 head = *ring->head;
505 do {
506 if (head == atomic_load_acquire(ring->tail))
507 break;
508 reaped++;
509 head++;
510 } while (reaped + events < max);
511
512 if (reaped)
513 atomic_store_release(ring->head, head);
514
515 return reaped;
516}
517
518static int fio_ioring_getevents(struct thread_data *td, unsigned int min,
519 unsigned int max, const struct timespec *t)
520{
521 struct ioring_data *ld = td->io_ops_data;
522 unsigned actual_min = td->o.iodepth_batch_complete_min == 0 ? 0 : min;
523 struct ioring_options *o = td->eo;
524 struct io_cq_ring *ring = &ld->cq_ring;
525 unsigned events = 0;
526 int r;
527
528 ld->cq_ring_off = *ring->head;
529 do {
530 r = fio_ioring_cqring_reap(td, events, max);
531 if (r) {
532 events += r;
533 max -= r;
534 if (actual_min != 0)
535 actual_min -= r;
536 continue;
537 }
538
539 if (!o->sqpoll_thread) {
540 r = io_uring_enter(ld, 0, actual_min,
541 IORING_ENTER_GETEVENTS);
542 if (r < 0) {
543 if (errno == EAGAIN || errno == EINTR)
544 continue;
545 r = -errno;
546 td_verror(td, errno, "io_uring_enter");
547 break;
548 }
549 }
550 } while (events < min);
551
552 return r < 0 ? r : events;
553}
554
555static inline void fio_ioring_cmd_nvme_pi(struct thread_data *td,
556 struct io_u *io_u)
557{
558 struct ioring_data *ld = td->io_ops_data;
559 struct ioring_options *o = td->eo;
560 struct nvme_uring_cmd *cmd;
561 struct io_uring_sqe *sqe;
562 struct nvme_cmd_ext_io_opts ext_opts = {0};
563 struct nvme_data *data = FILE_ENG_DATA(io_u->file);
564
565 if (io_u->ddir == DDIR_TRIM)
566 return;
567
568 sqe = &ld->sqes[(io_u->index) << 1];
569 cmd = (struct nvme_uring_cmd *)sqe->cmd;
570
571 if (data->pi_type) {
572 if (o->pi_act)
573 ext_opts.io_flags |= NVME_IO_PRINFO_PRACT;
574 ext_opts.io_flags |= o->prchk;
575 ext_opts.apptag = o->apptag;
576 ext_opts.apptag_mask = o->apptag_mask;
577 }
578
579 fio_nvme_pi_fill(cmd, io_u, &ext_opts);
580}
581
582static inline void fio_ioring_cmdprio_prep(struct thread_data *td,
583 struct io_u *io_u)
584{
585 struct ioring_data *ld = td->io_ops_data;
586 struct cmdprio *cmdprio = &ld->cmdprio;
587
588 if (fio_cmdprio_set_ioprio(td, cmdprio, io_u))
589 ld->sqes[io_u->index].ioprio = io_u->ioprio;
590}
591
592static enum fio_q_status fio_ioring_queue(struct thread_data *td,
593 struct io_u *io_u)
594{
595 struct ioring_data *ld = td->io_ops_data;
596 struct ioring_options *o = td->eo;
597 struct io_sq_ring *ring = &ld->sq_ring;
598 unsigned tail, next_tail;
599
600 fio_ro_check(td, io_u);
601
602 if (ld->queued == ld->iodepth)
603 return FIO_Q_BUSY;
604
605 if (io_u->ddir == DDIR_TRIM && td->io_ops->flags & FIO_ASYNCIO_SYNC_TRIM) {
606 if (ld->queued)
607 return FIO_Q_BUSY;
608
609 do_io_u_trim(td, io_u);
610
611 io_u_mark_submit(td, 1);
612 io_u_mark_complete(td, 1);
613 return FIO_Q_COMPLETED;
614 }
615
616 tail = *ring->tail;
617 next_tail = tail + 1;
618 if (next_tail == atomic_load_relaxed(ring->head))
619 return FIO_Q_BUSY;
620
621 if (ld->cmdprio.mode != CMDPRIO_MODE_NONE)
622 fio_ioring_cmdprio_prep(td, io_u);
623
624 if (!strcmp(td->io_ops->name, "io_uring_cmd") &&
625 o->cmd_type == FIO_URING_CMD_NVME)
626 fio_ioring_cmd_nvme_pi(td, io_u);
627
628 ring->array[tail & ld->sq_ring_mask] = io_u->index;
629 atomic_store_release(ring->tail, next_tail);
630
631 ld->queued++;
632 return FIO_Q_QUEUED;
633}
634
635static void fio_ioring_queued(struct thread_data *td, int start, int nr)
636{
637 struct ioring_data *ld = td->io_ops_data;
638 struct timespec now;
639
640 if (!fio_fill_issue_time(td))
641 return;
642
643 fio_gettime(&now, NULL);
644
645 while (nr--) {
646 struct io_sq_ring *ring = &ld->sq_ring;
647 int index = ring->array[start & ld->sq_ring_mask];
648 struct io_u *io_u = ld->io_u_index[index];
649
650 memcpy(&io_u->issue_time, &now, sizeof(now));
651 io_u_queued(td, io_u);
652
653 start++;
654 }
655
656 /*
657 * only used for iolog
658 */
659 if (td->o.read_iolog_file)
660 memcpy(&td->last_issue, &now, sizeof(now));
661}
662
663static int fio_ioring_commit(struct thread_data *td)
664{
665 struct ioring_data *ld = td->io_ops_data;
666 struct ioring_options *o = td->eo;
667 int ret;
668
669 if (!ld->queued)
670 return 0;
671
672 /*
673 * Kernel side does submission. just need to check if the ring is
674 * flagged as needing a kick, if so, call io_uring_enter(). This
675 * only happens if we've been idle too long.
676 */
677 if (o->sqpoll_thread) {
678 struct io_sq_ring *ring = &ld->sq_ring;
679 unsigned start = *ld->sq_ring.tail - ld->queued;
680 unsigned flags;
681
682 flags = atomic_load_relaxed(ring->flags);
683 if (flags & IORING_SQ_NEED_WAKEUP)
684 io_uring_enter(ld, ld->queued, 0,
685 IORING_ENTER_SQ_WAKEUP);
686 fio_ioring_queued(td, start, ld->queued);
687 io_u_mark_submit(td, ld->queued);
688
689 ld->queued = 0;
690 return 0;
691 }
692
693 do {
694 unsigned start = *ld->sq_ring.head;
695 long nr = ld->queued;
696
697 ret = io_uring_enter(ld, nr, 0, IORING_ENTER_GETEVENTS);
698 if (ret > 0) {
699 fio_ioring_queued(td, start, ret);
700 io_u_mark_submit(td, ret);
701
702 ld->queued -= ret;
703 ret = 0;
704 } else if (!ret) {
705 io_u_mark_submit(td, ret);
706 continue;
707 } else {
708 if (errno == EAGAIN || errno == EINTR) {
709 ret = fio_ioring_cqring_reap(td, 0, ld->queued);
710 if (ret)
711 continue;
712 /* Shouldn't happen */
713 usleep(1);
714 continue;
715 }
716 ret = -errno;
717 td_verror(td, errno, "io_uring_enter submit");
718 break;
719 }
720 } while (ld->queued);
721
722 return ret;
723}
724
725static void fio_ioring_unmap(struct ioring_data *ld)
726{
727 int i;
728
729 for (i = 0; i < FIO_ARRAY_SIZE(ld->mmap); i++)
730 munmap(ld->mmap[i].ptr, ld->mmap[i].len);
731 close(ld->ring_fd);
732}
733
734static void fio_ioring_cleanup(struct thread_data *td)
735{
736 struct ioring_data *ld = td->io_ops_data;
737
738 if (ld) {
739 if (!(td->flags & TD_F_CHILD))
740 fio_ioring_unmap(ld);
741
742 fio_cmdprio_cleanup(&ld->cmdprio);
743 free(ld->io_u_index);
744 free(ld->md_buf);
745 free(ld->iovecs);
746 free(ld->fds);
747 free(ld->dsm);
748 free(ld);
749 }
750}
751
752static int fio_ioring_mmap(struct ioring_data *ld, struct io_uring_params *p)
753{
754 struct io_sq_ring *sring = &ld->sq_ring;
755 struct io_cq_ring *cring = &ld->cq_ring;
756 void *ptr;
757
758 ld->mmap[0].len = p->sq_off.array + p->sq_entries * sizeof(__u32);
759 ptr = mmap(0, ld->mmap[0].len, PROT_READ | PROT_WRITE,
760 MAP_SHARED | MAP_POPULATE, ld->ring_fd,
761 IORING_OFF_SQ_RING);
762 ld->mmap[0].ptr = ptr;
763 sring->head = ptr + p->sq_off.head;
764 sring->tail = ptr + p->sq_off.tail;
765 sring->ring_mask = ptr + p->sq_off.ring_mask;
766 sring->ring_entries = ptr + p->sq_off.ring_entries;
767 sring->flags = ptr + p->sq_off.flags;
768 sring->array = ptr + p->sq_off.array;
769 ld->sq_ring_mask = *sring->ring_mask;
770
771 if (p->flags & IORING_SETUP_SQE128)
772 ld->mmap[1].len = 2 * p->sq_entries * sizeof(struct io_uring_sqe);
773 else
774 ld->mmap[1].len = p->sq_entries * sizeof(struct io_uring_sqe);
775 ld->sqes = mmap(0, ld->mmap[1].len, PROT_READ | PROT_WRITE,
776 MAP_SHARED | MAP_POPULATE, ld->ring_fd,
777 IORING_OFF_SQES);
778 ld->mmap[1].ptr = ld->sqes;
779
780 if (p->flags & IORING_SETUP_CQE32) {
781 ld->mmap[2].len = p->cq_off.cqes +
782 2 * p->cq_entries * sizeof(struct io_uring_cqe);
783 } else {
784 ld->mmap[2].len = p->cq_off.cqes +
785 p->cq_entries * sizeof(struct io_uring_cqe);
786 }
787 ptr = mmap(0, ld->mmap[2].len, PROT_READ | PROT_WRITE,
788 MAP_SHARED | MAP_POPULATE, ld->ring_fd,
789 IORING_OFF_CQ_RING);
790 ld->mmap[2].ptr = ptr;
791 cring->head = ptr + p->cq_off.head;
792 cring->tail = ptr + p->cq_off.tail;
793 cring->ring_mask = ptr + p->cq_off.ring_mask;
794 cring->ring_entries = ptr + p->cq_off.ring_entries;
795 cring->cqes = ptr + p->cq_off.cqes;
796 ld->cq_ring_mask = *cring->ring_mask;
797 return 0;
798}
799
800static void fio_ioring_probe(struct thread_data *td)
801{
802 struct ioring_data *ld = td->io_ops_data;
803 struct ioring_options *o = td->eo;
804 struct io_uring_probe *p;
805 int ret;
806
807 /* already set by user, don't touch */
808 if (o->nonvectored != -1)
809 return;
810
811 /* default to off, as that's always safe */
812 o->nonvectored = 0;
813
814 p = calloc(1, sizeof(*p) + 256 * sizeof(struct io_uring_probe_op));
815 if (!p)
816 return;
817
818 ret = syscall(__NR_io_uring_register, ld->ring_fd,
819 IORING_REGISTER_PROBE, p, 256);
820 if (ret < 0)
821 goto out;
822
823 if (IORING_OP_WRITE > p->ops_len)
824 goto out;
825
826 if ((p->ops[IORING_OP_READ].flags & IO_URING_OP_SUPPORTED) &&
827 (p->ops[IORING_OP_WRITE].flags & IO_URING_OP_SUPPORTED))
828 o->nonvectored = 1;
829out:
830 free(p);
831}
832
833static int fio_ioring_queue_init(struct thread_data *td)
834{
835 struct ioring_data *ld = td->io_ops_data;
836 struct ioring_options *o = td->eo;
837 int depth = td->o.iodepth;
838 struct io_uring_params p;
839 int ret;
840
841 memset(&p, 0, sizeof(p));
842
843 if (o->hipri)
844 p.flags |= IORING_SETUP_IOPOLL;
845 if (o->sqpoll_thread) {
846 p.flags |= IORING_SETUP_SQPOLL;
847 if (o->sqpoll_set) {
848 p.flags |= IORING_SETUP_SQ_AFF;
849 p.sq_thread_cpu = o->sqpoll_cpu;
850 }
851
852 /*
853 * Submission latency for sqpoll_thread is just the time it
854 * takes to fill in the SQ ring entries, and any syscall if
855 * IORING_SQ_NEED_WAKEUP is set, we don't need to log that time
856 * separately.
857 */
858 td->o.disable_slat = 1;
859 }
860
861 /*
862 * Clamp CQ ring size at our SQ ring size, we don't need more entries
863 * than that.
864 */
865 p.flags |= IORING_SETUP_CQSIZE;
866 p.cq_entries = depth;
867
868 /*
869 * Setup COOP_TASKRUN as we don't need to get IPI interrupted for
870 * completing IO operations.
871 */
872 p.flags |= IORING_SETUP_COOP_TASKRUN;
873
874 /*
875 * io_uring is always a single issuer, and we can defer task_work
876 * runs until we reap events.
877 */
878 p.flags |= IORING_SETUP_SINGLE_ISSUER | IORING_SETUP_DEFER_TASKRUN;
879
880retry:
881 ret = syscall(__NR_io_uring_setup, depth, &p);
882 if (ret < 0) {
883 if (errno == EINVAL && p.flags & IORING_SETUP_DEFER_TASKRUN) {
884 p.flags &= ~IORING_SETUP_DEFER_TASKRUN;
885 p.flags &= ~IORING_SETUP_SINGLE_ISSUER;
886 goto retry;
887 }
888 if (errno == EINVAL && p.flags & IORING_SETUP_COOP_TASKRUN) {
889 p.flags &= ~IORING_SETUP_COOP_TASKRUN;
890 goto retry;
891 }
892 if (errno == EINVAL && p.flags & IORING_SETUP_CQSIZE) {
893 p.flags &= ~IORING_SETUP_CQSIZE;
894 goto retry;
895 }
896 return ret;
897 }
898
899 ld->ring_fd = ret;
900
901 fio_ioring_probe(td);
902
903 if (o->fixedbufs) {
904 ret = syscall(__NR_io_uring_register, ld->ring_fd,
905 IORING_REGISTER_BUFFERS, ld->iovecs, depth);
906 if (ret < 0)
907 return ret;
908 }
909
910 return fio_ioring_mmap(ld, &p);
911}
912
913static int fio_ioring_cmd_queue_init(struct thread_data *td)
914{
915 struct ioring_data *ld = td->io_ops_data;
916 struct ioring_options *o = td->eo;
917 int depth = td->o.iodepth;
918 struct io_uring_params p;
919 int ret;
920
921 memset(&p, 0, sizeof(p));
922
923 if (o->hipri)
924 p.flags |= IORING_SETUP_IOPOLL;
925 if (o->sqpoll_thread) {
926 p.flags |= IORING_SETUP_SQPOLL;
927 if (o->sqpoll_set) {
928 p.flags |= IORING_SETUP_SQ_AFF;
929 p.sq_thread_cpu = o->sqpoll_cpu;
930 }
931
932 /*
933 * Submission latency for sqpoll_thread is just the time it
934 * takes to fill in the SQ ring entries, and any syscall if
935 * IORING_SQ_NEED_WAKEUP is set, we don't need to log that time
936 * separately.
937 */
938 td->o.disable_slat = 1;
939 }
940 if (o->cmd_type == FIO_URING_CMD_NVME) {
941 p.flags |= IORING_SETUP_SQE128;
942 p.flags |= IORING_SETUP_CQE32;
943 }
944
945 /*
946 * Clamp CQ ring size at our SQ ring size, we don't need more entries
947 * than that.
948 */
949 p.flags |= IORING_SETUP_CQSIZE;
950 p.cq_entries = depth;
951
952 /*
953 * Setup COOP_TASKRUN as we don't need to get IPI interrupted for
954 * completing IO operations.
955 */
956 p.flags |= IORING_SETUP_COOP_TASKRUN;
957
958 /*
959 * io_uring is always a single issuer, and we can defer task_work
960 * runs until we reap events.
961 */
962 p.flags |= IORING_SETUP_SINGLE_ISSUER | IORING_SETUP_DEFER_TASKRUN;
963
964retry:
965 ret = syscall(__NR_io_uring_setup, depth, &p);
966 if (ret < 0) {
967 if (errno == EINVAL && p.flags & IORING_SETUP_DEFER_TASKRUN) {
968 p.flags &= ~IORING_SETUP_DEFER_TASKRUN;
969 p.flags &= ~IORING_SETUP_SINGLE_ISSUER;
970 goto retry;
971 }
972 if (errno == EINVAL && p.flags & IORING_SETUP_COOP_TASKRUN) {
973 p.flags &= ~IORING_SETUP_COOP_TASKRUN;
974 goto retry;
975 }
976 if (errno == EINVAL && p.flags & IORING_SETUP_CQSIZE) {
977 p.flags &= ~IORING_SETUP_CQSIZE;
978 goto retry;
979 }
980 return ret;
981 }
982
983 ld->ring_fd = ret;
984
985 fio_ioring_probe(td);
986
987 if (o->fixedbufs) {
988 ret = syscall(__NR_io_uring_register, ld->ring_fd,
989 IORING_REGISTER_BUFFERS, ld->iovecs, depth);
990 if (ret < 0)
991 return ret;
992 }
993
994 return fio_ioring_mmap(ld, &p);
995}
996
997static int fio_ioring_register_files(struct thread_data *td)
998{
999 struct ioring_data *ld = td->io_ops_data;
1000 struct fio_file *f;
1001 unsigned int i;
1002 int ret;
1003
1004 ld->fds = calloc(td->o.nr_files, sizeof(int));
1005
1006 for_each_file(td, f, i) {
1007 ret = generic_open_file(td, f);
1008 if (ret)
1009 goto err;
1010 ld->fds[i] = f->fd;
1011 f->engine_pos = i;
1012 }
1013
1014 ret = syscall(__NR_io_uring_register, ld->ring_fd,
1015 IORING_REGISTER_FILES, ld->fds, td->o.nr_files);
1016 if (ret) {
1017err:
1018 free(ld->fds);
1019 ld->fds = NULL;
1020 }
1021
1022 /*
1023 * Pretend the file is closed again, and really close it if we hit
1024 * an error.
1025 */
1026 for_each_file(td, f, i) {
1027 if (ret) {
1028 int fio_unused ret2;
1029 ret2 = generic_close_file(td, f);
1030 } else
1031 f->fd = -1;
1032 }
1033
1034 return ret;
1035}
1036
1037static int fio_ioring_post_init(struct thread_data *td)
1038{
1039 struct ioring_data *ld = td->io_ops_data;
1040 struct ioring_options *o = td->eo;
1041 struct io_u *io_u;
1042 int err, i;
1043
1044 for (i = 0; i < td->o.iodepth; i++) {
1045 struct iovec *iov = &ld->iovecs[i];
1046
1047 io_u = ld->io_u_index[i];
1048 iov->iov_base = io_u->buf;
1049 iov->iov_len = td_max_bs(td);
1050 }
1051
1052 err = fio_ioring_queue_init(td);
1053 if (err) {
1054 int init_err = errno;
1055
1056 if (init_err == ENOSYS)
1057 log_err("fio: your kernel doesn't support io_uring\n");
1058 td_verror(td, init_err, "io_queue_init");
1059 return 1;
1060 }
1061
1062 for (i = 0; i < td->o.iodepth; i++) {
1063 struct io_uring_sqe *sqe;
1064
1065 sqe = &ld->sqes[i];
1066 memset(sqe, 0, sizeof(*sqe));
1067 }
1068
1069 if (o->registerfiles) {
1070 err = fio_ioring_register_files(td);
1071 if (err) {
1072 td_verror(td, errno, "ioring_register_files");
1073 return 1;
1074 }
1075 }
1076
1077 return 0;
1078}
1079
1080static int fio_ioring_cmd_post_init(struct thread_data *td)
1081{
1082 struct ioring_data *ld = td->io_ops_data;
1083 struct ioring_options *o = td->eo;
1084 struct io_u *io_u;
1085 int err, i;
1086
1087 for (i = 0; i < td->o.iodepth; i++) {
1088 struct iovec *iov = &ld->iovecs[i];
1089
1090 io_u = ld->io_u_index[i];
1091 iov->iov_base = io_u->buf;
1092 iov->iov_len = td_max_bs(td);
1093 }
1094
1095 err = fio_ioring_cmd_queue_init(td);
1096 if (err) {
1097 int init_err = errno;
1098
1099 td_verror(td, init_err, "io_queue_init");
1100 return 1;
1101 }
1102
1103 for (i = 0; i < td->o.iodepth; i++) {
1104 struct io_uring_sqe *sqe;
1105
1106 if (o->cmd_type == FIO_URING_CMD_NVME) {
1107 sqe = &ld->sqes[i << 1];
1108 memset(sqe, 0, 2 * sizeof(*sqe));
1109 } else {
1110 sqe = &ld->sqes[i];
1111 memset(sqe, 0, sizeof(*sqe));
1112 }
1113 }
1114
1115 if (o->registerfiles) {
1116 err = fio_ioring_register_files(td);
1117 if (err) {
1118 td_verror(td, errno, "ioring_register_files");
1119 return 1;
1120 }
1121 }
1122
1123 return 0;
1124}
1125
1126static void parse_prchk_flags(struct ioring_options *o)
1127{
1128 if (!o->pi_chk)
1129 return;
1130
1131 if (strstr(o->pi_chk, "GUARD") != NULL)
1132 o->prchk = NVME_IO_PRINFO_PRCHK_GUARD;
1133 if (strstr(o->pi_chk, "REFTAG") != NULL)
1134 o->prchk |= NVME_IO_PRINFO_PRCHK_REF;
1135 if (strstr(o->pi_chk, "APPTAG") != NULL)
1136 o->prchk |= NVME_IO_PRINFO_PRCHK_APP;
1137}
1138
1139static int fio_ioring_init(struct thread_data *td)
1140{
1141 struct ioring_options *o = td->eo;
1142 struct ioring_data *ld;
1143 struct nvme_dsm *dsm;
1144 void *ptr;
1145 unsigned int dsm_size;
1146 unsigned long long md_size;
1147 int ret, i;
1148
1149 /* sqthread submission requires registered files */
1150 if (o->sqpoll_thread)
1151 o->registerfiles = 1;
1152
1153 if (o->registerfiles && td->o.nr_files != td->o.open_files) {
1154 log_err("fio: io_uring registered files require nr_files to "
1155 "be identical to open_files\n");
1156 return 1;
1157 }
1158
1159 ld = calloc(1, sizeof(*ld));
1160
1161 /* ring depth must be a power-of-2 */
1162 ld->iodepth = td->o.iodepth;
1163 td->o.iodepth = roundup_pow2(td->o.iodepth);
1164
1165 /* io_u index */
1166 ld->io_u_index = calloc(td->o.iodepth, sizeof(struct io_u *));
1167
1168 /*
1169 * metadata buffer for nvme command.
1170 * We are only supporting iomem=malloc / mem=malloc as of now.
1171 */
1172 if (!strcmp(td->io_ops->name, "io_uring_cmd") &&
1173 (o->cmd_type == FIO_URING_CMD_NVME) && o->md_per_io_size) {
1174 md_size = (unsigned long long) o->md_per_io_size
1175 * (unsigned long long) td->o.iodepth;
1176 md_size += page_mask + td->o.mem_align;
1177 if (td->o.mem_align && td->o.mem_align > page_size)
1178 md_size += td->o.mem_align - page_size;
1179 if (td->o.mem_type == MEM_MALLOC) {
1180 ld->md_buf = malloc(md_size);
1181 if (!ld->md_buf) {
1182 free(ld);
1183 return 1;
1184 }
1185 } else {
1186 log_err("fio: Only iomem=malloc or mem=malloc is supported\n");
1187 free(ld);
1188 return 1;
1189 }
1190 }
1191 parse_prchk_flags(o);
1192
1193 ld->iovecs = calloc(td->o.iodepth, sizeof(struct iovec));
1194
1195 td->io_ops_data = ld;
1196
1197 ret = fio_cmdprio_init(td, &ld->cmdprio, &o->cmdprio_options);
1198 if (ret) {
1199 td_verror(td, EINVAL, "fio_ioring_init");
1200 return 1;
1201 }
1202
1203 /*
1204 * For io_uring_cmd, trims are async operations unless we are operating
1205 * in zbd mode where trim means zone reset.
1206 */
1207 if (!strcmp(td->io_ops->name, "io_uring_cmd") && td_trim(td) &&
1208 td->o.zone_mode == ZONE_MODE_ZBD) {
1209 td->io_ops->flags |= FIO_ASYNCIO_SYNC_TRIM;
1210 } else {
1211 dsm_size = sizeof(*ld->dsm) +
1212 td->o.num_range * sizeof(struct nvme_dsm_range);
1213 ld->dsm = calloc(td->o.iodepth, dsm_size);
1214 ptr = ld->dsm;
1215 for (i = 0; i < td->o.iodepth; i++) {
1216 dsm = (struct nvme_dsm *)ptr;
1217 dsm->nr_ranges = td->o.num_range;
1218 ptr += dsm_size;
1219 }
1220 }
1221
1222 return 0;
1223}
1224
1225static int fio_ioring_io_u_init(struct thread_data *td, struct io_u *io_u)
1226{
1227 struct ioring_data *ld = td->io_ops_data;
1228 struct ioring_options *o = td->eo;
1229 struct nvme_pi_data *pi_data;
1230 char *p;
1231
1232 ld->io_u_index[io_u->index] = io_u;
1233
1234 if (!strcmp(td->io_ops->name, "io_uring_cmd")) {
1235 p = PTR_ALIGN(ld->md_buf, page_mask) + td->o.mem_align;
1236 p += o->md_per_io_size * io_u->index;
1237 io_u->mmap_data = p;
1238
1239 if (!o->pi_act) {
1240 pi_data = calloc(1, sizeof(*pi_data));
1241 pi_data->io_flags |= o->prchk;
1242 pi_data->apptag_mask = o->apptag_mask;
1243 pi_data->apptag = o->apptag;
1244 io_u->engine_data = pi_data;
1245 }
1246 }
1247
1248 return 0;
1249}
1250
1251static void fio_ioring_io_u_free(struct thread_data *td, struct io_u *io_u)
1252{
1253 struct ioring_options *o = td->eo;
1254 struct nvme_pi *pi;
1255
1256 if (!strcmp(td->io_ops->name, "io_uring_cmd") &&
1257 (o->cmd_type == FIO_URING_CMD_NVME)) {
1258 pi = io_u->engine_data;
1259 free(pi);
1260 io_u->engine_data = NULL;
1261 }
1262}
1263
1264static int fio_ioring_open_file(struct thread_data *td, struct fio_file *f)
1265{
1266 struct ioring_data *ld = td->io_ops_data;
1267 struct ioring_options *o = td->eo;
1268
1269 if (!ld || !o->registerfiles)
1270 return generic_open_file(td, f);
1271
1272 f->fd = ld->fds[f->engine_pos];
1273 return 0;
1274}
1275
1276static int fio_ioring_cmd_open_file(struct thread_data *td, struct fio_file *f)
1277{
1278 struct ioring_data *ld = td->io_ops_data;
1279 struct ioring_options *o = td->eo;
1280
1281 if (o->cmd_type == FIO_URING_CMD_NVME) {
1282 struct nvme_data *data = NULL;
1283 unsigned int lba_size = 0;
1284 __u64 nlba = 0;
1285 int ret;
1286
1287 /* Store the namespace-id and lba size. */
1288 data = FILE_ENG_DATA(f);
1289 if (data == NULL) {
1290 data = calloc(1, sizeof(struct nvme_data));
1291 ret = fio_nvme_get_info(f, &nlba, o->pi_act, data);
1292 if (ret) {
1293 free(data);
1294 return ret;
1295 }
1296
1297 FILE_SET_ENG_DATA(f, data);
1298 }
1299
1300 lba_size = data->lba_ext ? data->lba_ext : data->lba_size;
1301
1302 for_each_rw_ddir(ddir) {
1303 if (td->o.min_bs[ddir] % lba_size || td->o.max_bs[ddir] % lba_size) {
1304 if (data->lba_ext) {
1305 log_err("%s: block size must be a multiple of %u "
1306 "(LBA data size + Metadata size)\n", f->file_name, lba_size);
1307 if (td->o.min_bs[ddir] == td->o.max_bs[ddir] &&
1308 !(td->o.min_bs[ddir] % data->lba_size)) {
1309 /* fixed block size is actually a multiple of LBA data size */
1310 unsigned long long suggestion = lba_size *
1311 (td->o.min_bs[ddir] / data->lba_size);
1312 log_err("Did you mean to use a block size of %llu?\n", suggestion);
1313 }
1314 } else {
1315 log_err("%s: block size must be a multiple of LBA data size\n",
1316 f->file_name);
1317 }
1318 td_verror(td, EINVAL, "fio_ioring_cmd_open_file");
1319 return 1;
1320 }
1321 if (data->ms && !data->lba_ext && ddir != DDIR_TRIM &&
1322 (o->md_per_io_size < ((td->o.max_bs[ddir] / data->lba_size) *
1323 data->ms))) {
1324 log_err("%s: md_per_io_size should be at least %llu bytes\n",
1325 f->file_name,
1326 ((td->o.max_bs[ddir] / data->lba_size) * data->ms));
1327 td_verror(td, EINVAL, "fio_ioring_cmd_open_file");
1328 return 1;
1329 }
1330 }
1331
1332 /*
1333 * For extended logical block sizes we cannot use verify when
1334 * end to end data protection checks are enabled, as the PI
1335 * section of data buffer conflicts with verify.
1336 */
1337 if (data->ms && data->pi_type && data->lba_ext &&
1338 td->o.verify != VERIFY_NONE) {
1339 log_err("%s: for extended LBA, verify cannot be used when E2E data protection is enabled\n",
1340 f->file_name);
1341 td_verror(td, EINVAL, "fio_ioring_cmd_open_file");
1342 return 1;
1343 }
1344 }
1345 if (!ld || !o->registerfiles)
1346 return generic_open_file(td, f);
1347
1348 f->fd = ld->fds[f->engine_pos];
1349 return 0;
1350}
1351
1352static int fio_ioring_close_file(struct thread_data *td, struct fio_file *f)
1353{
1354 struct ioring_data *ld = td->io_ops_data;
1355 struct ioring_options *o = td->eo;
1356
1357 if (!ld || !o->registerfiles)
1358 return generic_close_file(td, f);
1359
1360 f->fd = -1;
1361 return 0;
1362}
1363
1364static int fio_ioring_cmd_close_file(struct thread_data *td,
1365 struct fio_file *f)
1366{
1367 struct ioring_data *ld = td->io_ops_data;
1368 struct ioring_options *o = td->eo;
1369
1370 if (o->cmd_type == FIO_URING_CMD_NVME) {
1371 struct nvme_data *data = FILE_ENG_DATA(f);
1372
1373 FILE_SET_ENG_DATA(f, NULL);
1374 free(data);
1375 }
1376 if (!ld || !o->registerfiles)
1377 return generic_close_file(td, f);
1378
1379 f->fd = -1;
1380 return 0;
1381}
1382
1383static int fio_ioring_cmd_get_file_size(struct thread_data *td,
1384 struct fio_file *f)
1385{
1386 struct ioring_options *o = td->eo;
1387
1388 if (fio_file_size_known(f))
1389 return 0;
1390
1391 if (o->cmd_type == FIO_URING_CMD_NVME) {
1392 struct nvme_data *data = NULL;
1393 __u64 nlba = 0;
1394 int ret;
1395
1396 data = calloc(1, sizeof(struct nvme_data));
1397 ret = fio_nvme_get_info(f, &nlba, o->pi_act, data);
1398 if (ret) {
1399 free(data);
1400 return ret;
1401 }
1402
1403 f->real_file_size = data->lba_size * nlba;
1404 fio_file_set_size_known(f);
1405
1406 FILE_SET_ENG_DATA(f, data);
1407 return 0;
1408 }
1409 return generic_get_file_size(td, f);
1410}
1411
1412static int fio_ioring_cmd_get_zoned_model(struct thread_data *td,
1413 struct fio_file *f,
1414 enum zbd_zoned_model *model)
1415{
1416 return fio_nvme_get_zoned_model(td, f, model);
1417}
1418
1419static int fio_ioring_cmd_report_zones(struct thread_data *td,
1420 struct fio_file *f, uint64_t offset,
1421 struct zbd_zone *zbdz,
1422 unsigned int nr_zones)
1423{
1424 return fio_nvme_report_zones(td, f, offset, zbdz, nr_zones);
1425}
1426
1427static int fio_ioring_cmd_reset_wp(struct thread_data *td, struct fio_file *f,
1428 uint64_t offset, uint64_t length)
1429{
1430 return fio_nvme_reset_wp(td, f, offset, length);
1431}
1432
1433static int fio_ioring_cmd_get_max_open_zones(struct thread_data *td,
1434 struct fio_file *f,
1435 unsigned int *max_open_zones)
1436{
1437 return fio_nvme_get_max_open_zones(td, f, max_open_zones);
1438}
1439
1440static int fio_ioring_cmd_fetch_ruhs(struct thread_data *td, struct fio_file *f,
1441 struct fio_ruhs_info *fruhs_info)
1442{
1443 struct nvme_fdp_ruh_status *ruhs;
1444 int bytes, ret, i;
1445
1446 bytes = sizeof(*ruhs) + FDP_MAX_RUHS * sizeof(struct nvme_fdp_ruh_status_desc);
1447 ruhs = scalloc(1, bytes);
1448 if (!ruhs)
1449 return -ENOMEM;
1450
1451 ret = fio_nvme_iomgmt_ruhs(td, f, ruhs, bytes);
1452 if (ret)
1453 goto free;
1454
1455 fruhs_info->nr_ruhs = le16_to_cpu(ruhs->nruhsd);
1456 for (i = 0; i < fruhs_info->nr_ruhs; i++)
1457 fruhs_info->plis[i] = le16_to_cpu(ruhs->ruhss[i].pid);
1458free:
1459 sfree(ruhs);
1460 return ret;
1461}
1462
1463static struct ioengine_ops ioengine_uring = {
1464 .name = "io_uring",
1465 .version = FIO_IOOPS_VERSION,
1466 .flags = FIO_ASYNCIO_SYNC_TRIM | FIO_NO_OFFLOAD |
1467 FIO_ASYNCIO_SETS_ISSUE_TIME,
1468 .init = fio_ioring_init,
1469 .post_init = fio_ioring_post_init,
1470 .io_u_init = fio_ioring_io_u_init,
1471 .prep = fio_ioring_prep,
1472 .queue = fio_ioring_queue,
1473 .commit = fio_ioring_commit,
1474 .getevents = fio_ioring_getevents,
1475 .event = fio_ioring_event,
1476 .cleanup = fio_ioring_cleanup,
1477 .open_file = fio_ioring_open_file,
1478 .close_file = fio_ioring_close_file,
1479 .get_file_size = generic_get_file_size,
1480 .options = options,
1481 .option_struct_size = sizeof(struct ioring_options),
1482};
1483
1484static struct ioengine_ops ioengine_uring_cmd = {
1485 .name = "io_uring_cmd",
1486 .version = FIO_IOOPS_VERSION,
1487 .flags = FIO_NO_OFFLOAD | FIO_MEMALIGN | FIO_RAWIO |
1488 FIO_ASYNCIO_SETS_ISSUE_TIME |
1489 FIO_MULTI_RANGE_TRIM,
1490 .init = fio_ioring_init,
1491 .post_init = fio_ioring_cmd_post_init,
1492 .io_u_init = fio_ioring_io_u_init,
1493 .io_u_free = fio_ioring_io_u_free,
1494 .prep = fio_ioring_cmd_prep,
1495 .queue = fio_ioring_queue,
1496 .commit = fio_ioring_commit,
1497 .getevents = fio_ioring_getevents,
1498 .event = fio_ioring_cmd_event,
1499 .cleanup = fio_ioring_cleanup,
1500 .open_file = fio_ioring_cmd_open_file,
1501 .close_file = fio_ioring_cmd_close_file,
1502 .get_file_size = fio_ioring_cmd_get_file_size,
1503 .get_zoned_model = fio_ioring_cmd_get_zoned_model,
1504 .report_zones = fio_ioring_cmd_report_zones,
1505 .reset_wp = fio_ioring_cmd_reset_wp,
1506 .get_max_open_zones = fio_ioring_cmd_get_max_open_zones,
1507 .options = options,
1508 .option_struct_size = sizeof(struct ioring_options),
1509 .fdp_fetch_ruhs = fio_ioring_cmd_fetch_ruhs,
1510};
1511
1512static void fio_init fio_ioring_register(void)
1513{
1514 register_ioengine(&ioengine_uring);
1515 register_ioengine(&ioengine_uring_cmd);
1516}
1517
1518static void fio_exit fio_ioring_unregister(void)
1519{
1520 unregister_ioengine(&ioengine_uring);
1521 unregister_ioengine(&ioengine_uring_cmd);
1522}
1523#endif
fio - Flexible IO Tester