verify: ensure that verify interval is smaller or equal to blocksize
[fio.git] / verify.c
CommitLineData
e29d1b70
JA
1/*
2 * IO verification helpers
3 */
4#include <unistd.h>
5#include <fcntl.h>
6#include <string.h>
97af62ce 7#include <assert.h>
e8462bd8 8#include <pthread.h>
79402a12 9#include <libgen.h>
e29d1b70
JA
10
11#include "fio.h"
4f5af7b2 12#include "verify.h"
0d29de83 13#include "trim.h"
637ef8d9 14#include "lib/rand.h"
51aa2da8 15#include "lib/hweight.h"
e29d1b70 16
eef6eea1
JA
17#include "crc/md5.h"
18#include "crc/crc64.h"
19#include "crc/crc32.h"
bac39e0e 20#include "crc/crc32c.h"
eef6eea1
JA
21#include "crc/crc16.h"
22#include "crc/crc7.h"
23#include "crc/sha256.h"
24#include "crc/sha512.h"
7c353ceb 25#include "crc/sha1.h"
844ea602 26#include "crc/xxhash.h"
cd14cc10 27
7d9fb455
JA
28static void populate_hdr(struct thread_data *td, struct io_u *io_u,
29 struct verify_header *hdr, unsigned int header_num,
30 unsigned int header_len);
31
ce35b1ec
JA
32static void fill_pattern(struct thread_data *td, void *p, unsigned int len,
33 char *pattern, unsigned int pattern_bytes)
90059d65 34{
ce35b1ec 35 switch (pattern_bytes) {
90059d65 36 case 0:
ce35b1ec 37 assert(0);
90059d65
JA
38 break;
39 case 1:
bd6f78b2 40 dprint(FD_VERIFY, "fill verify pattern b=0 len=%u\n", len);
ce35b1ec 41 memset(p, pattern[0], len);
90059d65 42 break;
0e92f873
RR
43 default: {
44 unsigned int i = 0, size = 0;
90059d65
JA
45 unsigned char *b = p;
46
bd6f78b2 47 dprint(FD_VERIFY, "fill verify pattern b=%d len=%u\n",
ce35b1ec 48 pattern_bytes, len);
bd6f78b2 49
90059d65 50 while (i < len) {
ce35b1ec 51 size = pattern_bytes;
0e92f873
RR
52 if (size > (len - i))
53 size = len - i;
ce35b1ec 54 memcpy(b+i, pattern, size);
0e92f873 55 i += size;
90059d65
JA
56 }
57 break;
58 }
59 }
60}
61
ce35b1ec
JA
62void fill_buffer_pattern(struct thread_data *td, void *p, unsigned int len)
63{
64 fill_pattern(td, p, len, td->o.buffer_pattern, td->o.buffer_pattern_bytes);
65}
66
67void fill_verify_pattern(struct thread_data *td, void *p, unsigned int len,
68 struct io_u *io_u, unsigned long seed, int use_seed)
69{
70 if (!td->o.verify_pattern_bytes) {
71 dprint(FD_VERIFY, "fill random bytes len=%u\n", len);
72
73 if (use_seed)
74 __fill_random_buf(p, len, seed);
75 else
c4b6117b 76 io_u->rand_seed = fill_random_buf(&td->__verify_state, p, len);
ce35b1ec
JA
77 return;
78 }
c4b6117b 79
ce35b1ec
JA
80 if (io_u->buf_filled_len >= len) {
81 dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n",
82 td->o.verify_pattern_bytes, len);
83 return;
84 }
85
86 fill_pattern(td, p, len, td->o.verify_pattern, td->o.verify_pattern_bytes);
87
88 io_u->buf_filled_len = len;
89}
90
cfbcd0dc
JA
91static unsigned int get_hdr_inc(struct thread_data *td, struct io_u *io_u)
92{
93 unsigned int hdr_inc;
94
95 hdr_inc = io_u->buflen;
8a99fdf6 96 if (td->o.verify_interval && td->o.verify_interval <= io_u->buflen)
cfbcd0dc
JA
97 hdr_inc = td->o.verify_interval;
98
99 return hdr_inc;
100}
101
c50ca7bd
JA
102static void fill_pattern_headers(struct thread_data *td, struct io_u *io_u,
103 unsigned long seed, int use_seed)
104{
105 unsigned int hdr_inc, header_num;
106 struct verify_header *hdr;
107 void *p = io_u->buf;
108
ce35b1ec 109 fill_verify_pattern(td, p, io_u->buflen, io_u, seed, use_seed);
c50ca7bd 110
cfbcd0dc 111 hdr_inc = get_hdr_inc(td, io_u);
c50ca7bd
JA
112 header_num = 0;
113 for (; p < io_u->buf + io_u->buflen; p += hdr_inc) {
114 hdr = p;
115 populate_hdr(td, io_u, hdr, header_num, hdr_inc);
116 header_num++;
117 }
118}
119
4764aec9 120static void memswp(void *buf1, void *buf2, unsigned int len)
546a9142 121{
dee6de74
SL
122 char swap[200];
123
124 assert(len <= sizeof(swap));
90059d65 125
546a9142
SL
126 memcpy(&swap, buf1, len);
127 memcpy(buf1, buf2, len);
128 memcpy(buf2, &swap, len);
129}
130
e29d1b70
JA
131static void hexdump(void *buffer, int len)
132{
133 unsigned char *p = buffer;
134 int i;
135
136 for (i = 0; i < len; i++)
bfacf389
JA
137 log_err("%02x", p[i]);
138 log_err("\n");
e29d1b70
JA
139}
140
87677832 141/*
de8f6de9 142 * Prepare for separation of verify_header and checksum header
87677832 143 */
546dfd9f 144static inline unsigned int __hdr_size(int verify_type)
87677832 145{
03e20d68 146 unsigned int len = 0;
87677832 147
546dfd9f
JA
148 switch (verify_type) {
149 case VERIFY_NONE:
150 case VERIFY_NULL:
151 len = 0;
152 break;
153 case VERIFY_MD5:
154 len = sizeof(struct vhdr_md5);
155 break;
156 case VERIFY_CRC64:
157 len = sizeof(struct vhdr_crc64);
158 break;
bac39e0e 159 case VERIFY_CRC32C:
546dfd9f 160 case VERIFY_CRC32:
3845591f 161 case VERIFY_CRC32C_INTEL:
546dfd9f
JA
162 len = sizeof(struct vhdr_crc32);
163 break;
164 case VERIFY_CRC16:
165 len = sizeof(struct vhdr_crc16);
166 break;
167 case VERIFY_CRC7:
168 len = sizeof(struct vhdr_crc7);
169 break;
170 case VERIFY_SHA256:
171 len = sizeof(struct vhdr_sha256);
172 break;
173 case VERIFY_SHA512:
174 len = sizeof(struct vhdr_sha512);
175 break;
844ea602
JA
176 case VERIFY_XXHASH:
177 len = sizeof(struct vhdr_xxhash);
178 break;
7437ee87
SL
179 case VERIFY_META:
180 len = sizeof(struct vhdr_meta);
181 break;
7c353ceb
JA
182 case VERIFY_SHA1:
183 len = sizeof(struct vhdr_sha1);
184 break;
92bf48d5
JA
185 case VERIFY_PATTERN:
186 len = 0;
187 break;
546dfd9f
JA
188 default:
189 log_err("fio: unknown verify header!\n");
190 assert(0);
191 }
192
193 return len + sizeof(struct verify_header);
87677832
JA
194}
195
196static inline unsigned int hdr_size(struct verify_header *hdr)
197{
546dfd9f
JA
198 return __hdr_size(hdr->verify_type);
199}
200
201static void *hdr_priv(struct verify_header *hdr)
202{
203 void *priv = hdr;
204
205 return priv + sizeof(struct verify_header);
87677832
JA
206}
207
936216f8
JA
208/*
209 * Verify container, pass info to verify handlers and allow them to
210 * pass info back in case of error
211 */
212struct vcont {
213 /*
214 * Input
215 */
216 struct io_u *io_u;
217 unsigned int hdr_num;
7d9fb455 218 struct thread_data *td;
936216f8
JA
219
220 /*
221 * Output, only valid in case of error
222 */
bfacf389
JA
223 const char *name;
224 void *good_crc;
225 void *bad_crc;
936216f8
JA
226 unsigned int crc_len;
227};
228
dacbbb88
JA
229#define DUMP_BUF_SZ 255
230static int dump_buf_warned;
231
c50ca7bd
JA
232static void dump_buf(char *buf, unsigned int len, unsigned long long offset,
233 const char *type, struct fio_file *f)
7d9fb455 234{
dacbbb88
JA
235 char *ptr, fname[DUMP_BUF_SZ];
236 size_t buf_left = DUMP_BUF_SZ;
7d9fb455
JA
237 int ret, fd;
238
6f260b31 239 ptr = strdup(f->file_name);
c50ca7bd 240
dacbbb88
JA
241 fname[DUMP_BUF_SZ - 1] = '\0';
242 strncpy(fname, basename(ptr), DUMP_BUF_SZ - 1);
243
244 buf_left -= strlen(fname);
245 if (buf_left <= 0) {
246 if (!dump_buf_warned) {
247 log_err("fio: verify failure dump buffer too small\n");
248 dump_buf_warned = 1;
249 }
250 free(ptr);
251 return;
252 }
253
254 snprintf(fname + strlen(fname), buf_left, ".%llu.%s", offset, type);
7d9fb455
JA
255
256 fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY, 0644);
257 if (fd < 0) {
258 perror("open verify buf file");
259 return;
260 }
261
262 while (len) {
263 ret = write(fd, buf, len);
264 if (!ret)
265 break;
266 else if (ret < 0) {
267 perror("write verify buf file");
268 break;
269 }
270 len -= ret;
271 buf += ret;
272 }
273
274 close(fd);
c50ca7bd 275 log_err(" %s data dumped as %s\n", type, fname);
6f260b31 276 free(ptr);
7d9fb455
JA
277}
278
c50ca7bd
JA
279/*
280 * Dump the contents of the read block and re-generate the correct data
281 * and dump that too.
282 */
7d9fb455
JA
283static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
284{
285 struct thread_data *td = vc->td;
286 struct io_u *io_u = vc->io_u;
287 unsigned long hdr_offset;
7d9fb455 288 struct io_u dummy;
c50ca7bd 289 void *buf;
7d9fb455 290
0dce9bc9
SL
291 if (!td->o.verify_dump)
292 return;
293
c50ca7bd
JA
294 /*
295 * Dump the contents we just read off disk
296 */
7d9fb455
JA
297 hdr_offset = vc->hdr_num * hdr->len;
298
c50ca7bd
JA
299 dump_buf(io_u->buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
300 "received", vc->io_u->file);
7d9fb455 301
c50ca7bd
JA
302 /*
303 * Allocate a new buf and re-generate the original data
304 */
305 buf = malloc(io_u->buflen);
7d9fb455 306 dummy = *io_u;
c50ca7bd 307 dummy.buf = buf;
4aae38a6 308 dummy.rand_seed = hdr->rand_seed;
cfbcd0dc 309 dummy.buf_filled_len = 0;
0d81daf9 310 dummy.buflen = io_u->buflen;
7d9fb455 311
c50ca7bd 312 fill_pattern_headers(td, &dummy, hdr->rand_seed, 1);
7d9fb455 313
c50ca7bd
JA
314 dump_buf(buf + hdr_offset, hdr->len, io_u->offset + hdr_offset,
315 "expected", vc->io_u->file);
7d9fb455
JA
316 free(buf);
317}
318
bfacf389
JA
319static void log_verify_failure(struct verify_header *hdr, struct vcont *vc)
320{
321 unsigned long long offset;
322
323 offset = vc->io_u->offset;
324 offset += vc->hdr_num * hdr->len;
32c17adf
JA
325 log_err("%.8s: verify failed at file %s offset %llu, length %u\n",
326 vc->name, vc->io_u->file->file_name, offset, hdr->len);
bfacf389
JA
327
328 if (vc->good_crc && vc->bad_crc) {
329 log_err(" Expected CRC: ");
330 hexdump(vc->good_crc, vc->crc_len);
331 log_err(" Received CRC: ");
332 hexdump(vc->bad_crc, vc->crc_len);
333 }
7d9fb455
JA
334
335 dump_verify_buffers(hdr, vc);
bfacf389
JA
336}
337
d9f2caf3
JA
338/*
339 * Return data area 'header_num'
340 */
936216f8 341static inline void *io_u_verify_off(struct verify_header *hdr, struct vcont *vc)
d9f2caf3 342{
936216f8 343 return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(hdr);
d9f2caf3
JA
344}
345
92bf48d5
JA
346static int verify_io_u_pattern(struct verify_header *hdr, struct vcont *vc)
347{
348 struct thread_data *td = vc->td;
349 struct io_u *io_u = vc->io_u;
350 char *buf, *pattern;
2b13e716 351 unsigned int header_size = __hdr_size(td->o.verify);
9a2a86d0 352 unsigned int len, mod, i, size, pattern_size;
92bf48d5
JA
353
354 pattern = td->o.verify_pattern;
9a2a86d0
SL
355 pattern_size = td->o.verify_pattern_bytes;
356 if (pattern_size <= 1)
357 pattern_size = MAX_PATTERN_SIZE;
2b13e716
JA
358 buf = (void *) hdr + header_size;
359 len = get_hdr_inc(td, io_u) - header_size;
9a2a86d0
SL
360 mod = header_size % pattern_size;
361
362 for (i = 0; i < len; i += size) {
363 size = pattern_size - mod;
364 if (size > (len - i))
365 size = len - i;
366 if (memcmp(buf + i, pattern + mod, size))
e4ad68b1 367 /* Let the slow compare find the first mismatch byte. */
9a2a86d0
SL
368 break;
369 mod = 0;
370 }
92bf48d5 371
9a2a86d0 372 for (; i < len; i++) {
92bf48d5
JA
373 if (buf[i] != pattern[mod]) {
374 unsigned int bits;
375
376 bits = hweight8(buf[i] ^ pattern[mod]);
377 log_err("fio: got pattern %x, wanted %x. Bad bits %d\n",
378 buf[i], pattern[mod], bits);
379 log_err("fio: bad pattern block offset %u\n", i);
380 dump_verify_buffers(hdr, vc);
381 return EILSEQ;
382 }
383 mod++;
384 if (mod == td->o.verify_pattern_bytes)
385 mod = 0;
386 }
387
388 return 0;
389}
390
391static int verify_io_u_meta(struct verify_header *hdr, struct vcont *vc)
7437ee87 392{
92bf48d5 393 struct thread_data *td = vc->td;
7437ee87 394 struct vhdr_meta *vh = hdr_priv(hdr);
936216f8 395 struct io_u *io_u = vc->io_u;
92bf48d5 396 int ret = EILSEQ;
7437ee87 397
bd6f78b2
JA
398 dprint(FD_VERIFY, "meta verify io_u %p, len %u\n", io_u, hdr->len);
399
bfacf389 400 if (vh->offset == io_u->offset + vc->hdr_num * td->o.verify_interval)
92bf48d5
JA
401 ret = 0;
402
403 if (td->o.verify_pattern_bytes)
404 ret |= verify_io_u_pattern(hdr, vc);
405
da0a7bd2
JC
406 /*
407 * For read-only workloads, the program cannot be certain of the
8bca6016
JA
408 * last numberio written to a block. Checking of numberio will be
409 * done only for workloads that write data. For verify_only,
410 * numberio will be checked in the last iteration when the correct
411 * state of numberio, that would have been written to each block
412 * in a previous run of fio, has been reached.
da0a7bd2 413 */
8bca6016 414 if ((td_write(td) || td_rw(td)) && (td_min_bs(td) == td_max_bs(td)))
62167762
JC
415 if (!td->o.verify_only || td->o.loops == 0)
416 if (vh->numberio != io_u->numberio)
417 ret = EILSEQ;
da0a7bd2 418
92bf48d5 419 if (!ret)
bfacf389 420 return 0;
7437ee87 421
bfacf389
JA
422 vc->name = "meta";
423 log_verify_failure(hdr, vc);
92bf48d5 424 return ret;
7437ee87
SL
425}
426
844ea602
JA
427static int verify_io_u_xxhash(struct verify_header *hdr, struct vcont *vc)
428{
429 void *p = io_u_verify_off(hdr, vc);
430 struct vhdr_xxhash *vh = hdr_priv(hdr);
431 uint32_t hash;
432 void *state;
433
434 dprint(FD_VERIFY, "xxhash verify io_u %p, len %u\n", vc->io_u, hdr->len);
435
436 state = XXH32_init(1);
437 XXH32_update(state, p, hdr->len - hdr_size(hdr));
438 hash = XXH32_digest(state);
439
440 if (vh->hash == hash)
441 return 0;
442
443 vc->name = "xxhash";
444 vc->good_crc = &vh->hash;
445 vc->bad_crc = &hash;
446 vc->crc_len = sizeof(hash);
447 log_verify_failure(hdr, vc);
448 return EILSEQ;
449}
450
936216f8 451static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc)
cd14cc10 452{
936216f8 453 void *p = io_u_verify_off(hdr, vc);
546dfd9f 454 struct vhdr_sha512 *vh = hdr_priv(hdr);
cd14cc10 455 uint8_t sha512[128];
25dfa848 456 struct fio_sha512_ctx sha512_ctx = {
cd14cc10
JA
457 .buf = sha512,
458 };
459
936216f8 460 dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 461
25dfa848
JA
462 fio_sha512_init(&sha512_ctx);
463 fio_sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr));
cd14cc10 464
bfacf389
JA
465 if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512)))
466 return 0;
cd14cc10 467
bfacf389
JA
468 vc->name = "sha512";
469 vc->good_crc = vh->sha512;
470 vc->bad_crc = sha512_ctx.buf;
471 vc->crc_len = sizeof(vh->sha512);
472 log_verify_failure(hdr, vc);
473 return EILSEQ;
cd14cc10
JA
474}
475
936216f8 476static int verify_io_u_sha256(struct verify_header *hdr, struct vcont *vc)
cd14cc10 477{
936216f8 478 void *p = io_u_verify_off(hdr, vc);
546dfd9f 479 struct vhdr_sha256 *vh = hdr_priv(hdr);
bc77f56f 480 uint8_t sha256[64];
25dfa848 481 struct fio_sha256_ctx sha256_ctx = {
cd14cc10
JA
482 .buf = sha256,
483 };
484
936216f8 485 dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 486
25dfa848
JA
487 fio_sha256_init(&sha256_ctx);
488 fio_sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr));
cd14cc10 489
bfacf389
JA
490 if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256)))
491 return 0;
cd14cc10 492
bfacf389
JA
493 vc->name = "sha256";
494 vc->good_crc = vh->sha256;
495 vc->bad_crc = sha256_ctx.buf;
496 vc->crc_len = sizeof(vh->sha256);
497 log_verify_failure(hdr, vc);
498 return EILSEQ;
cd14cc10
JA
499}
500
936216f8 501static int verify_io_u_sha1(struct verify_header *hdr, struct vcont *vc)
7c353ceb 502{
936216f8 503 void *p = io_u_verify_off(hdr, vc);
7c353ceb
JA
504 struct vhdr_sha1 *vh = hdr_priv(hdr);
505 uint32_t sha1[5];
25dfa848 506 struct fio_sha1_ctx sha1_ctx = {
7c353ceb
JA
507 .H = sha1,
508 };
509
936216f8 510 dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len);
7c353ceb 511
25dfa848
JA
512 fio_sha1_init(&sha1_ctx);
513 fio_sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr));
7c353ceb 514
bfacf389
JA
515 if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1)))
516 return 0;
7c353ceb 517
bfacf389
JA
518 vc->name = "sha1";
519 vc->good_crc = vh->sha1;
520 vc->bad_crc = sha1_ctx.H;
521 vc->crc_len = sizeof(vh->sha1);
522 log_verify_failure(hdr, vc);
523 return EILSEQ;
7c353ceb
JA
524}
525
936216f8 526static int verify_io_u_crc7(struct verify_header *hdr, struct vcont *vc)
1e154bdb 527{
936216f8 528 void *p = io_u_verify_off(hdr, vc);
546dfd9f 529 struct vhdr_crc7 *vh = hdr_priv(hdr);
1e154bdb
JA
530 unsigned char c;
531
936216f8 532 dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 533
25dfa848 534 c = fio_crc7(p, hdr->len - hdr_size(hdr));
1e154bdb 535
bfacf389
JA
536 if (c == vh->crc7)
537 return 0;
1e154bdb 538
bfacf389
JA
539 vc->name = "crc7";
540 vc->good_crc = &vh->crc7;
541 vc->bad_crc = &c;
542 vc->crc_len = 1;
543 log_verify_failure(hdr, vc);
544 return EILSEQ;
1e154bdb
JA
545}
546
936216f8 547static int verify_io_u_crc16(struct verify_header *hdr, struct vcont *vc)
969f7ed3 548{
936216f8 549 void *p = io_u_verify_off(hdr, vc);
546dfd9f 550 struct vhdr_crc16 *vh = hdr_priv(hdr);
969f7ed3
JA
551 unsigned short c;
552
936216f8 553 dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 554
25dfa848 555 c = fio_crc16(p, hdr->len - hdr_size(hdr));
969f7ed3 556
bfacf389
JA
557 if (c == vh->crc16)
558 return 0;
969f7ed3 559
bfacf389
JA
560 vc->name = "crc16";
561 vc->good_crc = &vh->crc16;
562 vc->bad_crc = &c;
563 vc->crc_len = 2;
564 log_verify_failure(hdr, vc);
565 return EILSEQ;
969f7ed3
JA
566}
567
936216f8 568static int verify_io_u_crc64(struct verify_header *hdr, struct vcont *vc)
d77a7af3 569{
936216f8 570 void *p = io_u_verify_off(hdr, vc);
546dfd9f 571 struct vhdr_crc64 *vh = hdr_priv(hdr);
d77a7af3
JA
572 unsigned long long c;
573
936216f8 574 dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 575
25dfa848 576 c = fio_crc64(p, hdr->len - hdr_size(hdr));
d77a7af3 577
bfacf389
JA
578 if (c == vh->crc64)
579 return 0;
d77a7af3 580
bfacf389
JA
581 vc->name = "crc64";
582 vc->good_crc = &vh->crc64;
583 vc->bad_crc = &c;
584 vc->crc_len = 8;
585 log_verify_failure(hdr, vc);
586 return EILSEQ;
d77a7af3
JA
587}
588
936216f8 589static int verify_io_u_crc32(struct verify_header *hdr, struct vcont *vc)
e29d1b70 590{
936216f8 591 void *p = io_u_verify_off(hdr, vc);
546dfd9f
JA
592 struct vhdr_crc32 *vh = hdr_priv(hdr);
593 uint32_t c;
e29d1b70 594
936216f8 595 dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 596
25dfa848 597 c = fio_crc32(p, hdr->len - hdr_size(hdr));
e29d1b70 598
bfacf389
JA
599 if (c == vh->crc32)
600 return 0;
e29d1b70 601
bfacf389
JA
602 vc->name = "crc32";
603 vc->good_crc = &vh->crc32;
604 vc->bad_crc = &c;
605 vc->crc_len = 4;
606 log_verify_failure(hdr, vc);
607 return EILSEQ;
e29d1b70
JA
608}
609
936216f8 610static int verify_io_u_crc32c(struct verify_header *hdr, struct vcont *vc)
bac39e0e 611{
936216f8 612 void *p = io_u_verify_off(hdr, vc);
bac39e0e
JA
613 struct vhdr_crc32 *vh = hdr_priv(hdr);
614 uint32_t c;
615
936216f8 616 dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len);
bac39e0e 617
25dfa848 618 c = fio_crc32c(p, hdr->len - hdr_size(hdr));
bac39e0e 619
bfacf389
JA
620 if (c == vh->crc32)
621 return 0;
bac39e0e 622
bfacf389
JA
623 vc->name = "crc32c";
624 vc->good_crc = &vh->crc32;
625 vc->bad_crc = &c;
626 vc->crc_len = 4;
627 log_verify_failure(hdr, vc);
628 return EILSEQ;
bac39e0e
JA
629}
630
936216f8 631static int verify_io_u_md5(struct verify_header *hdr, struct vcont *vc)
e29d1b70 632{
936216f8 633 void *p = io_u_verify_off(hdr, vc);
546dfd9f 634 struct vhdr_md5 *vh = hdr_priv(hdr);
8c432325 635 uint32_t hash[MD5_HASH_WORDS];
25dfa848 636 struct fio_md5_ctx md5_ctx = {
8c432325
JA
637 .hash = hash,
638 };
e29d1b70 639
936216f8 640 dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len);
bd6f78b2 641
25dfa848
JA
642 fio_md5_init(&md5_ctx);
643 fio_md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr));
e29d1b70 644
bfacf389
JA
645 if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash)))
646 return 0;
e29d1b70 647
bfacf389
JA
648 vc->name = "md5";
649 vc->good_crc = vh->md5_digest;
650 vc->bad_crc = md5_ctx.hash;
651 vc->crc_len = sizeof(hash);
652 log_verify_failure(hdr, vc);
653 return EILSEQ;
e29d1b70
JA
654}
655
e8462bd8
JA
656/*
657 * Push IO verification to a separate thread
658 */
659int verify_io_u_async(struct thread_data *td, struct io_u *io_u)
660{
661 if (io_u->file)
662 put_file_log(td, io_u->file);
663
e8462bd8 664 pthread_mutex_lock(&td->io_u_lock);
d7ee2a7d 665
0c41214f
RR
666 if (io_u->flags & IO_U_F_IN_CUR_DEPTH) {
667 td->cur_depth--;
668 io_u->flags &= ~IO_U_F_IN_CUR_DEPTH;
669 }
2ae0b204 670 flist_add_tail(&io_u->verify_list, &td->verify_list);
2ecc1b57 671 io_u->flags |= IO_U_F_FREE_DEF;
e8462bd8
JA
672 pthread_mutex_unlock(&td->io_u_lock);
673
674 pthread_cond_signal(&td->verify_cond);
e8462bd8
JA
675 return 0;
676}
677
0d29de83
JA
678static int verify_trimmed_io_u(struct thread_data *td, struct io_u *io_u)
679{
680 static char zero_buf[1024];
681 unsigned int this_len, len;
682 int ret = 0;
683 void *p;
684
685 if (!td->o.trim_zero)
686 return 0;
687
688 len = io_u->buflen;
689 p = io_u->buf;
690 do {
691 this_len = sizeof(zero_buf);
692 if (this_len > len)
693 this_len = len;
694 if (memcmp(p, zero_buf, this_len)) {
695 ret = EILSEQ;
696 break;
697 }
698 len -= this_len;
699 p += this_len;
700 } while (len);
701
702 if (!ret)
703 return 0;
704
a917a8b3
JA
705 log_err("trim: verify failed at file %s offset %llu, length %lu"
706 ", block offset %lu\n",
707 io_u->file->file_name, io_u->offset, io_u->buflen,
2f68124f 708 (unsigned long) (p - io_u->buf));
0d29de83
JA
709 return ret;
710}
711
5964842c
AG
712static int verify_header(struct io_u *io_u, struct verify_header *hdr,
713 unsigned int hdr_num, unsigned int hdr_len)
f65d1c26
JA
714{
715 void *p = hdr;
716 uint32_t crc;
717
5964842c
AG
718 if (hdr->magic != FIO_HDR_MAGIC) {
719 log_err("verify: bad magic header %x, wanted %x",
720 hdr->magic, FIO_HDR_MAGIC);
721 goto err;
722 }
4445856a 723 if (hdr->len != hdr_len) {
5964842c
AG
724 log_err("verify: bad header length %u, wanted %u",
725 hdr->len, hdr_len);
726 goto err;
727 }
728 if (hdr->rand_seed != io_u->rand_seed) {
729 log_err("verify: bad header rand_seed %"PRIu64
730 ", wanted %"PRIu64,
731 hdr->rand_seed, io_u->rand_seed);
732 goto err;
733 }
ae38c0dc 734
25dfa848 735 crc = fio_crc32c(p, offsetof(struct verify_header, crc32));
5964842c
AG
736 if (crc != hdr->crc32) {
737 log_err("verify: bad header crc %x, calculated %x",
738 hdr->crc32, crc);
739 goto err;
740 }
741 return 0;
742
743err:
744 log_err(" at file %s offset %llu, length %u\n",
745 io_u->file->file_name,
746 io_u->offset + hdr_num * hdr_len, hdr_len);
747 return EILSEQ;
f65d1c26
JA
748}
749
36690c9b 750int verify_io_u(struct thread_data *td, struct io_u *io_u)
e29d1b70 751{
3f9f4e26 752 struct verify_header *hdr;
2b13e716 753 unsigned int header_size, hdr_inc, hdr_num = 0;
95646108 754 void *p;
e29d1b70
JA
755 int ret;
756
1dcc0498 757 if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ)
36690c9b 758 return 0;
0d29de83
JA
759 if (io_u->flags & IO_U_F_TRIMMED) {
760 ret = verify_trimmed_io_u(td, io_u);
761 goto done;
762 }
36690c9b 763
cfbcd0dc 764 hdr_inc = get_hdr_inc(td, io_u);
e29d1b70 765
a12a3b4d 766 ret = 0;
5ec10eaa
JA
767 for (p = io_u->buf; p < io_u->buf + io_u->buflen;
768 p += hdr_inc, hdr_num++) {
bfacf389
JA
769 struct vcont vc = {
770 .io_u = io_u,
771 .hdr_num = hdr_num,
7d9fb455 772 .td = td,
bfacf389 773 };
f00b210f 774 unsigned int verify_type;
936216f8 775
f3e6cb95 776 if (ret && td->o.verify_fatal)
a12a3b4d 777 break;
f3e6cb95 778
2b13e716 779 header_size = __hdr_size(td->o.verify);
a59e170d 780 if (td->o.verify_offset)
2b13e716 781 memswp(p, p + td->o.verify_offset, header_size);
95646108 782 hdr = p;
e29d1b70 783
c4b6117b
PV
784 /*
785 * Make rand_seed check pass when have verifysort or
786 * verify_backlog.
787 */
788 if (td->o.verifysort || (td->flags & TD_F_VER_BACKLOG))
789 io_u->rand_seed = hdr->rand_seed;
790
5964842c
AG
791 ret = verify_header(io_u, hdr, hdr_num, hdr_inc);
792 if (ret)
793 return ret;
3f199b01 794
f00b210f
JA
795 if (td->o.verify != VERIFY_NONE)
796 verify_type = td->o.verify;
797 else
798 verify_type = hdr->verify_type;
799
800 switch (verify_type) {
3f9f4e26 801 case VERIFY_MD5:
936216f8 802 ret = verify_io_u_md5(hdr, &vc);
3f9f4e26
SL
803 break;
804 case VERIFY_CRC64:
936216f8 805 ret = verify_io_u_crc64(hdr, &vc);
3f9f4e26 806 break;
bac39e0e 807 case VERIFY_CRC32C:
3845591f 808 case VERIFY_CRC32C_INTEL:
936216f8 809 ret = verify_io_u_crc32c(hdr, &vc);
bac39e0e 810 break;
3f9f4e26 811 case VERIFY_CRC32:
936216f8 812 ret = verify_io_u_crc32(hdr, &vc);
3f9f4e26
SL
813 break;
814 case VERIFY_CRC16:
936216f8 815 ret = verify_io_u_crc16(hdr, &vc);
3f9f4e26
SL
816 break;
817 case VERIFY_CRC7:
936216f8 818 ret = verify_io_u_crc7(hdr, &vc);
3f9f4e26 819 break;
cd14cc10 820 case VERIFY_SHA256:
936216f8 821 ret = verify_io_u_sha256(hdr, &vc);
cd14cc10
JA
822 break;
823 case VERIFY_SHA512:
936216f8 824 ret = verify_io_u_sha512(hdr, &vc);
cd14cc10 825 break;
844ea602
JA
826 case VERIFY_XXHASH:
827 ret = verify_io_u_xxhash(hdr, &vc);
828 break;
7437ee87 829 case VERIFY_META:
92bf48d5 830 ret = verify_io_u_meta(hdr, &vc);
7437ee87 831 break;
7c353ceb 832 case VERIFY_SHA1:
936216f8 833 ret = verify_io_u_sha1(hdr, &vc);
7c353ceb 834 break;
92bf48d5
JA
835 case VERIFY_PATTERN:
836 ret = verify_io_u_pattern(hdr, &vc);
837 break;
3f9f4e26
SL
838 default:
839 log_err("Bad verify type %u\n", hdr->verify_type);
d16d4e09 840 ret = EINVAL;
3f9f4e26 841 }
f00b210f
JA
842
843 if (ret && verify_type != hdr->verify_type)
844 log_err("fio: verify type mismatch (%u media, %u given)\n",
845 hdr->verify_type, verify_type);
3f9f4e26 846 }
a7dfe862 847
0d29de83 848done:
f3e6cb95 849 if (ret && td->o.verify_fatal)
ebea2133 850 fio_mark_td_terminate(td);
f3e6cb95 851
a12a3b4d 852 return ret;
e29d1b70
JA
853}
854
7437ee87 855static void fill_meta(struct verify_header *hdr, struct thread_data *td,
5ec10eaa 856 struct io_u *io_u, unsigned int header_num)
7437ee87
SL
857{
858 struct vhdr_meta *vh = hdr_priv(hdr);
859
860 vh->thread = td->thread_number;
861
862 vh->time_sec = io_u->start_time.tv_sec;
863 vh->time_usec = io_u->start_time.tv_usec;
864
da0a7bd2 865 vh->numberio = io_u->numberio;
7437ee87
SL
866
867 vh->offset = io_u->offset + header_num * td->o.verify_interval;
868}
869
844ea602
JA
870static void fill_xxhash(struct verify_header *hdr, void *p, unsigned int len)
871{
872 struct vhdr_xxhash *vh = hdr_priv(hdr);
873 void *state;
874
875 state = XXH32_init(1);
876 XXH32_update(state, p, len);
877 vh->hash = XXH32_digest(state);
878}
879
cd14cc10
JA
880static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len)
881{
546dfd9f 882 struct vhdr_sha512 *vh = hdr_priv(hdr);
25dfa848 883 struct fio_sha512_ctx sha512_ctx = {
546dfd9f 884 .buf = vh->sha512,
cd14cc10
JA
885 };
886
25dfa848
JA
887 fio_sha512_init(&sha512_ctx);
888 fio_sha512_update(&sha512_ctx, p, len);
cd14cc10
JA
889}
890
891static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len)
892{
546dfd9f 893 struct vhdr_sha256 *vh = hdr_priv(hdr);
25dfa848 894 struct fio_sha256_ctx sha256_ctx = {
546dfd9f 895 .buf = vh->sha256,
cd14cc10
JA
896 };
897
25dfa848
JA
898 fio_sha256_init(&sha256_ctx);
899 fio_sha256_update(&sha256_ctx, p, len);
cd14cc10
JA
900}
901
7c353ceb
JA
902static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len)
903{
904 struct vhdr_sha1 *vh = hdr_priv(hdr);
25dfa848 905 struct fio_sha1_ctx sha1_ctx = {
7c353ceb
JA
906 .H = vh->sha1,
907 };
908
25dfa848
JA
909 fio_sha1_init(&sha1_ctx);
910 fio_sha1_update(&sha1_ctx, p, len);
7c353ceb
JA
911}
912
1e154bdb
JA
913static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
914{
546dfd9f
JA
915 struct vhdr_crc7 *vh = hdr_priv(hdr);
916
25dfa848 917 vh->crc7 = fio_crc7(p, len);
1e154bdb
JA
918}
919
969f7ed3
JA
920static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
921{
546dfd9f
JA
922 struct vhdr_crc16 *vh = hdr_priv(hdr);
923
25dfa848 924 vh->crc16 = fio_crc16(p, len);
969f7ed3
JA
925}
926
e29d1b70
JA
927static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
928{
546dfd9f
JA
929 struct vhdr_crc32 *vh = hdr_priv(hdr);
930
25dfa848 931 vh->crc32 = fio_crc32(p, len);
e29d1b70
JA
932}
933
bac39e0e
JA
934static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len)
935{
936 struct vhdr_crc32 *vh = hdr_priv(hdr);
937
25dfa848 938 vh->crc32 = fio_crc32c(p, len);
bac39e0e
JA
939}
940
d77a7af3
JA
941static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len)
942{
546dfd9f
JA
943 struct vhdr_crc64 *vh = hdr_priv(hdr);
944
25dfa848 945 vh->crc64 = fio_crc64(p, len);
d77a7af3
JA
946}
947
e29d1b70
JA
948static void fill_md5(struct verify_header *hdr, void *p, unsigned int len)
949{
546dfd9f 950 struct vhdr_md5 *vh = hdr_priv(hdr);
25dfa848 951 struct fio_md5_ctx md5_ctx = {
546dfd9f 952 .hash = (uint32_t *) vh->md5_digest,
8c432325 953 };
e29d1b70 954
25dfa848
JA
955 fio_md5_init(&md5_ctx);
956 fio_md5_update(&md5_ctx, p, len);
e29d1b70
JA
957}
958
7d9fb455
JA
959static void populate_hdr(struct thread_data *td, struct io_u *io_u,
960 struct verify_header *hdr, unsigned int header_num,
961 unsigned int header_len)
962{
963 unsigned int data_len;
964 void *data, *p;
965
966 p = (void *) hdr;
967
d3a173a9 968 hdr->magic = FIO_HDR_MAGIC;
7d9fb455 969 hdr->verify_type = td->o.verify;
d3a173a9 970 hdr->len = header_len;
7d9fb455 971 hdr->rand_seed = io_u->rand_seed;
25dfa848 972 hdr->crc32 = fio_crc32c(p, offsetof(struct verify_header, crc32));
f65d1c26 973
7d9fb455
JA
974 data_len = header_len - hdr_size(hdr);
975
976 data = p + hdr_size(hdr);
977 switch (td->o.verify) {
978 case VERIFY_MD5:
979 dprint(FD_VERIFY, "fill md5 io_u %p, len %u\n",
980 io_u, hdr->len);
981 fill_md5(hdr, data, data_len);
982 break;
983 case VERIFY_CRC64:
984 dprint(FD_VERIFY, "fill crc64 io_u %p, len %u\n",
985 io_u, hdr->len);
986 fill_crc64(hdr, data, data_len);
987 break;
988 case VERIFY_CRC32C:
989 case VERIFY_CRC32C_INTEL:
990 dprint(FD_VERIFY, "fill crc32c io_u %p, len %u\n",
991 io_u, hdr->len);
992 fill_crc32c(hdr, data, data_len);
993 break;
994 case VERIFY_CRC32:
995 dprint(FD_VERIFY, "fill crc32 io_u %p, len %u\n",
996 io_u, hdr->len);
997 fill_crc32(hdr, data, data_len);
998 break;
999 case VERIFY_CRC16:
1000 dprint(FD_VERIFY, "fill crc16 io_u %p, len %u\n",
1001 io_u, hdr->len);
1002 fill_crc16(hdr, data, data_len);
1003 break;
1004 case VERIFY_CRC7:
1005 dprint(FD_VERIFY, "fill crc7 io_u %p, len %u\n",
1006 io_u, hdr->len);
1007 fill_crc7(hdr, data, data_len);
1008 break;
1009 case VERIFY_SHA256:
1010 dprint(FD_VERIFY, "fill sha256 io_u %p, len %u\n",
1011 io_u, hdr->len);
1012 fill_sha256(hdr, data, data_len);
1013 break;
1014 case VERIFY_SHA512:
1015 dprint(FD_VERIFY, "fill sha512 io_u %p, len %u\n",
1016 io_u, hdr->len);
1017 fill_sha512(hdr, data, data_len);
1018 break;
844ea602
JA
1019 case VERIFY_XXHASH:
1020 dprint(FD_VERIFY, "fill xxhash io_u %p, len %u\n",
1021 io_u, hdr->len);
1022 fill_xxhash(hdr, data, data_len);
1023 break;
7d9fb455
JA
1024 case VERIFY_META:
1025 dprint(FD_VERIFY, "fill meta io_u %p, len %u\n",
1026 io_u, hdr->len);
1027 fill_meta(hdr, td, io_u, header_num);
1028 break;
1029 case VERIFY_SHA1:
1030 dprint(FD_VERIFY, "fill sha1 io_u %p, len %u\n",
1031 io_u, hdr->len);
1032 fill_sha1(hdr, data, data_len);
1033 break;
92bf48d5
JA
1034 case VERIFY_PATTERN:
1035 /* nothing to do here */
1036 break;
7d9fb455
JA
1037 default:
1038 log_err("fio: bad verify type: %d\n", td->o.verify);
1039 assert(0);
1040 }
1041 if (td->o.verify_offset)
1042 memswp(p, p + td->o.verify_offset, hdr_size(hdr));
1043}
1044
e29d1b70
JA
1045/*
1046 * fill body of io_u->buf with random data and add a header with the
c50ca7bd 1047 * checksum of choice
e29d1b70
JA
1048 */
1049void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
1050{
9cc3d150
JA
1051 if (td->o.verify == VERIFY_NULL)
1052 return;
1053
da0a7bd2
JC
1054 io_u->numberio = td->io_issues[io_u->ddir];
1055
c50ca7bd 1056 fill_pattern_headers(td, io_u, 0, 0);
e29d1b70
JA
1057}
1058
1059int get_next_verify(struct thread_data *td, struct io_u *io_u)
1060{
8de8f047 1061 struct io_piece *ipo = NULL;
e29d1b70 1062
d2d7fa53
JA
1063 /*
1064 * this io_u is from a requeue, we already filled the offsets
1065 */
1066 if (io_u->file)
1067 return 0;
1068
8de8f047
JA
1069 if (!RB_EMPTY_ROOT(&td->io_hist_tree)) {
1070 struct rb_node *n = rb_first(&td->io_hist_tree);
e29d1b70 1071
8de8f047 1072 ipo = rb_entry(n, struct io_piece, rb_node);
f9401285
JA
1073
1074 /*
1075 * Ensure that the associated IO has completed
1076 */
1077 read_barrier();
1078 if (ipo->flags & IP_F_IN_FLIGHT)
1079 goto nothing;
1080
4b87898e 1081 rb_erase(n, &td->io_hist_tree);
a917a8b3
JA
1082 assert(ipo->flags & IP_F_ONRB);
1083 ipo->flags &= ~IP_F_ONRB;
01743ee1 1084 } else if (!flist_empty(&td->io_hist_list)) {
9342d5f8 1085 ipo = flist_first_entry(&td->io_hist_list, struct io_piece, list);
f9401285
JA
1086
1087 /*
1088 * Ensure that the associated IO has completed
1089 */
1090 read_barrier();
1091 if (ipo->flags & IP_F_IN_FLIGHT)
1092 goto nothing;
1093
01743ee1 1094 flist_del(&ipo->list);
a917a8b3
JA
1095 assert(ipo->flags & IP_F_ONLIST);
1096 ipo->flags &= ~IP_F_ONLIST;
8de8f047 1097 }
e29d1b70 1098
8de8f047 1099 if (ipo) {
0d29de83
JA
1100 td->io_hist_len--;
1101
e29d1b70
JA
1102 io_u->offset = ipo->offset;
1103 io_u->buflen = ipo->len;
da0a7bd2 1104 io_u->numberio = ipo->numberio;
36167d82 1105 io_u->file = ipo->file;
82af2a7c 1106 io_u->flags |= IO_U_F_VER_LIST;
97af62ce 1107
0d29de83
JA
1108 if (ipo->flags & IP_F_TRIMMED)
1109 io_u->flags |= IO_U_F_TRIMMED;
1110
d6aed795 1111 if (!fio_file_open(io_u->file)) {
97af62ce
JA
1112 int r = td_io_open_file(td, io_u->file);
1113
bd6f78b2
JA
1114 if (r) {
1115 dprint(FD_VERIFY, "failed file %s open\n",
1116 io_u->file->file_name);
97af62ce 1117 return 1;
bd6f78b2 1118 }
97af62ce
JA
1119 }
1120
1121 get_file(ipo->file);
d6aed795 1122 assert(fio_file_open(io_u->file));
e29d1b70 1123 io_u->ddir = DDIR_READ;
36167d82
JA
1124 io_u->xfer_buf = io_u->buf;
1125 io_u->xfer_buflen = io_u->buflen;
0d29de83
JA
1126
1127 remove_trim_entry(td, ipo);
e29d1b70 1128 free(ipo);
bd6f78b2 1129 dprint(FD_VERIFY, "get_next_verify: ret io_u %p\n", io_u);
c4b6117b
PV
1130
1131 if (!td->o.verify_pattern_bytes) {
1132 io_u->rand_seed = __rand(&td->__verify_state);
1133 if (sizeof(int) != sizeof(long *))
1134 io_u->rand_seed *= __rand(&td->__verify_state);
1135 }
e29d1b70
JA
1136 return 0;
1137 }
1138
f9401285 1139nothing:
bd6f78b2 1140 dprint(FD_VERIFY, "get_next_verify: empty\n");
e29d1b70
JA
1141 return 1;
1142}
e8462bd8 1143
dc5bfbb2
JA
1144void fio_verify_init(struct thread_data *td)
1145{
1146 if (td->o.verify == VERIFY_CRC32C_INTEL ||
1147 td->o.verify == VERIFY_CRC32C) {
1148 crc32c_intel_probe();
1149 }
1150}
1151
e8462bd8
JA
1152static void *verify_async_thread(void *data)
1153{
1154 struct thread_data *td = data;
1155 struct io_u *io_u;
1156 int ret = 0;
1157
1158 if (td->o.verify_cpumask_set &&
1159 fio_setaffinity(td->pid, td->o.verify_cpumask)) {
1160 log_err("fio: failed setting verify thread affinity\n");
1161 goto done;
1162 }
1163
1164 do {
e53ab27c
JA
1165 FLIST_HEAD(list);
1166
e8462bd8
JA
1167 read_barrier();
1168 if (td->verify_thread_exit)
1169 break;
1170
1171 pthread_mutex_lock(&td->io_u_lock);
1172
1173 while (flist_empty(&td->verify_list) &&
1174 !td->verify_thread_exit) {
b36e298b
JA
1175 ret = pthread_cond_wait(&td->verify_cond,
1176 &td->io_u_lock);
e8462bd8
JA
1177 if (ret) {
1178 pthread_mutex_unlock(&td->io_u_lock);
1179 break;
1180 }
1181 }
1182
e53ab27c
JA
1183 flist_splice_init(&td->verify_list, &list);
1184 pthread_mutex_unlock(&td->io_u_lock);
1185
1186 if (flist_empty(&list))
e8462bd8 1187 continue;
e8462bd8 1188
e53ab27c 1189 while (!flist_empty(&list)) {
9342d5f8 1190 io_u = flist_first_entry(&list, struct io_u, verify_list);
2ae0b204 1191 flist_del(&io_u->verify_list);
e8462bd8 1192
d561f2ab 1193 ret = verify_io_u(td, io_u);
e53ab27c 1194 put_io_u(td, io_u);
d561f2ab
JA
1195 if (!ret)
1196 continue;
8b28bd41 1197 if (td_non_fatal_error(td, ERROR_TYPE_VERIFY_BIT, ret)) {
d561f2ab
JA
1198 update_error_count(td, ret);
1199 td_clear_error(td);
1200 ret = 0;
1201 }
e53ab27c 1202 }
e8462bd8
JA
1203 } while (!ret);
1204
d561f2ab
JA
1205 if (ret) {
1206 td_verror(td, ret, "async_verify");
f3e6cb95 1207 if (td->o.verify_fatal)
ebea2133 1208 fio_mark_td_terminate(td);
d561f2ab
JA
1209 }
1210
e8462bd8
JA
1211done:
1212 pthread_mutex_lock(&td->io_u_lock);
1213 td->nr_verify_threads--;
1214 pthread_mutex_unlock(&td->io_u_lock);
1215
1216 pthread_cond_signal(&td->free_cond);
1217 return NULL;
1218}
1219
1220int verify_async_init(struct thread_data *td)
1221{
1222 int i, ret;
304a47c7
VA
1223 pthread_attr_t attr;
1224
1225 pthread_attr_init(&attr);
1226 pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
e8462bd8
JA
1227
1228 td->verify_thread_exit = 0;
1229
1230 td->verify_threads = malloc(sizeof(pthread_t) * td->o.verify_async);
1231 for (i = 0; i < td->o.verify_async; i++) {
304a47c7 1232 ret = pthread_create(&td->verify_threads[i], &attr,
e8462bd8
JA
1233 verify_async_thread, td);
1234 if (ret) {
1235 log_err("fio: async verify creation failed: %s\n",
1236 strerror(ret));
1237 break;
1238 }
1239 ret = pthread_detach(td->verify_threads[i]);
1240 if (ret) {
1241 log_err("fio: async verify thread detach failed: %s\n",
1242 strerror(ret));
1243 break;
1244 }
1245 td->nr_verify_threads++;
1246 }
1247
304a47c7
VA
1248 pthread_attr_destroy(&attr);
1249
e8462bd8 1250 if (i != td->o.verify_async) {
e40823b1 1251 log_err("fio: only %d verify threads started, exiting\n", i);
e8462bd8
JA
1252 td->verify_thread_exit = 1;
1253 write_barrier();
1254 pthread_cond_broadcast(&td->verify_cond);
1255 return 1;
1256 }
1257
1258 return 0;
1259}
1260
1261void verify_async_exit(struct thread_data *td)
1262{
1263 td->verify_thread_exit = 1;
1264 write_barrier();
1265 pthread_cond_broadcast(&td->verify_cond);
1266
1267 pthread_mutex_lock(&td->io_u_lock);
1268
1269 while (td->nr_verify_threads)
1270 pthread_cond_wait(&td->free_cond, &td->io_u_lock);
1271
1272 pthread_mutex_unlock(&td->io_u_lock);
1273 free(td->verify_threads);
1274 td->verify_threads = NULL;
1275}