Commit | Line | Data |
---|---|---|
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 |
28 | static 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 |
32 | void fill_buffer_pattern(struct thread_data *td, void *p, unsigned int len) |
33 | { | |
632ae347 | 34 | fill_pattern(p, len, td->o.buffer_pattern, td->o.buffer_pattern_bytes); |
ce35b1ec JA |
35 | } |
36 | ||
7fa085ea JA |
37 | void __fill_buffer(struct thread_options *o, unsigned long seed, void *p, |
38 | unsigned int len) | |
39 | { | |
40 | __fill_random_buf_percentage(seed, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes); | |
41 | } | |
42 | ||
43 | unsigned long fill_buffer(struct thread_data *td, void *p, unsigned int len) | |
44 | { | |
45 | struct frand_state *fs = &td->verify_state; | |
46 | struct thread_options *o = &td->o; | |
47 | ||
48 | return fill_random_buf_percentage(fs, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes); | |
49 | } | |
50 | ||
ce35b1ec JA |
51 | void fill_verify_pattern(struct thread_data *td, void *p, unsigned int len, |
52 | struct io_u *io_u, unsigned long seed, int use_seed) | |
53 | { | |
bc769898 JA |
54 | struct thread_options *o = &td->o; |
55 | ||
56 | if (!o->verify_pattern_bytes) { | |
ce35b1ec JA |
57 | dprint(FD_VERIFY, "fill random bytes len=%u\n", len); |
58 | ||
59 | if (use_seed) | |
7fa085ea JA |
60 | __fill_buffer(o, seed, p, len); |
61 | else | |
62 | io_u->rand_seed = fill_buffer(td, p, len); | |
ce35b1ec JA |
63 | return; |
64 | } | |
c4b6117b | 65 | |
ce35b1ec JA |
66 | if (io_u->buf_filled_len >= len) { |
67 | dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n", | |
bc769898 | 68 | o->verify_pattern_bytes, len); |
ce35b1ec JA |
69 | return; |
70 | } | |
71 | ||
bc769898 | 72 | fill_pattern(p, len, o->verify_pattern, o->verify_pattern_bytes); |
ce35b1ec JA |
73 | io_u->buf_filled_len = len; |
74 | } | |
75 | ||
cfbcd0dc JA |
76 | static unsigned int get_hdr_inc(struct thread_data *td, struct io_u *io_u) |
77 | { | |
78 | unsigned int hdr_inc; | |
79 | ||
80 | hdr_inc = io_u->buflen; | |
8a99fdf6 | 81 | if (td->o.verify_interval && td->o.verify_interval <= io_u->buflen) |
cfbcd0dc JA |
82 | hdr_inc = td->o.verify_interval; |
83 | ||
84 | return hdr_inc; | |
85 | } | |
86 | ||
c50ca7bd JA |
87 | static void fill_pattern_headers(struct thread_data *td, struct io_u *io_u, |
88 | unsigned long seed, int use_seed) | |
89 | { | |
90 | unsigned int hdr_inc, header_num; | |
91 | struct verify_header *hdr; | |
92 | void *p = io_u->buf; | |
93 | ||
ce35b1ec | 94 | fill_verify_pattern(td, p, io_u->buflen, io_u, seed, use_seed); |
c50ca7bd | 95 | |
cfbcd0dc | 96 | hdr_inc = get_hdr_inc(td, io_u); |
c50ca7bd JA |
97 | header_num = 0; |
98 | for (; p < io_u->buf + io_u->buflen; p += hdr_inc) { | |
99 | hdr = p; | |
100 | populate_hdr(td, io_u, hdr, header_num, hdr_inc); | |
101 | header_num++; | |
102 | } | |
103 | } | |
104 | ||
4764aec9 | 105 | static void memswp(void *buf1, void *buf2, unsigned int len) |
546a9142 | 106 | { |
dee6de74 SL |
107 | char swap[200]; |
108 | ||
109 | assert(len <= sizeof(swap)); | |
90059d65 | 110 | |
546a9142 SL |
111 | memcpy(&swap, buf1, len); |
112 | memcpy(buf1, buf2, len); | |
113 | memcpy(buf2, &swap, len); | |
114 | } | |
115 | ||
e29d1b70 JA |
116 | static void hexdump(void *buffer, int len) |
117 | { | |
118 | unsigned char *p = buffer; | |
119 | int i; | |
120 | ||
121 | for (i = 0; i < len; i++) | |
bfacf389 JA |
122 | log_err("%02x", p[i]); |
123 | log_err("\n"); | |
e29d1b70 JA |
124 | } |
125 | ||
87677832 | 126 | /* |
de8f6de9 | 127 | * Prepare for separation of verify_header and checksum header |
87677832 | 128 | */ |
546dfd9f | 129 | static inline unsigned int __hdr_size(int verify_type) |
87677832 | 130 | { |
03e20d68 | 131 | unsigned int len = 0; |
87677832 | 132 | |
546dfd9f JA |
133 | switch (verify_type) { |
134 | case VERIFY_NONE: | |
135 | case VERIFY_NULL: | |
136 | len = 0; | |
137 | break; | |
138 | case VERIFY_MD5: | |
139 | len = sizeof(struct vhdr_md5); | |
140 | break; | |
141 | case VERIFY_CRC64: | |
142 | len = sizeof(struct vhdr_crc64); | |
143 | break; | |
bac39e0e | 144 | case VERIFY_CRC32C: |
546dfd9f | 145 | case VERIFY_CRC32: |
3845591f | 146 | case VERIFY_CRC32C_INTEL: |
546dfd9f JA |
147 | len = sizeof(struct vhdr_crc32); |
148 | break; | |
149 | case VERIFY_CRC16: | |
150 | len = sizeof(struct vhdr_crc16); | |
151 | break; | |
152 | case VERIFY_CRC7: | |
153 | len = sizeof(struct vhdr_crc7); | |
154 | break; | |
155 | case VERIFY_SHA256: | |
156 | len = sizeof(struct vhdr_sha256); | |
157 | break; | |
158 | case VERIFY_SHA512: | |
159 | len = sizeof(struct vhdr_sha512); | |
160 | break; | |
844ea602 JA |
161 | case VERIFY_XXHASH: |
162 | len = sizeof(struct vhdr_xxhash); | |
163 | break; | |
7437ee87 SL |
164 | case VERIFY_META: |
165 | len = sizeof(struct vhdr_meta); | |
166 | break; | |
7c353ceb JA |
167 | case VERIFY_SHA1: |
168 | len = sizeof(struct vhdr_sha1); | |
169 | break; | |
92bf48d5 JA |
170 | case VERIFY_PATTERN: |
171 | len = 0; | |
172 | break; | |
546dfd9f JA |
173 | default: |
174 | log_err("fio: unknown verify header!\n"); | |
175 | assert(0); | |
176 | } | |
177 | ||
178 | return len + sizeof(struct verify_header); | |
87677832 JA |
179 | } |
180 | ||
181 | static inline unsigned int hdr_size(struct verify_header *hdr) | |
182 | { | |
546dfd9f JA |
183 | return __hdr_size(hdr->verify_type); |
184 | } | |
185 | ||
186 | static void *hdr_priv(struct verify_header *hdr) | |
187 | { | |
188 | void *priv = hdr; | |
189 | ||
190 | return priv + sizeof(struct verify_header); | |
87677832 JA |
191 | } |
192 | ||
936216f8 JA |
193 | /* |
194 | * Verify container, pass info to verify handlers and allow them to | |
195 | * pass info back in case of error | |
196 | */ | |
197 | struct vcont { | |
198 | /* | |
199 | * Input | |
200 | */ | |
201 | struct io_u *io_u; | |
202 | unsigned int hdr_num; | |
7d9fb455 | 203 | struct thread_data *td; |
936216f8 JA |
204 | |
205 | /* | |
206 | * Output, only valid in case of error | |
207 | */ | |
bfacf389 JA |
208 | const char *name; |
209 | void *good_crc; | |
210 | void *bad_crc; | |
936216f8 JA |
211 | unsigned int crc_len; |
212 | }; | |
213 | ||
dacbbb88 JA |
214 | #define DUMP_BUF_SZ 255 |
215 | static int dump_buf_warned; | |
216 | ||
c50ca7bd JA |
217 | static void dump_buf(char *buf, unsigned int len, unsigned long long offset, |
218 | const char *type, struct fio_file *f) | |
7d9fb455 | 219 | { |
dacbbb88 JA |
220 | char *ptr, fname[DUMP_BUF_SZ]; |
221 | size_t buf_left = DUMP_BUF_SZ; | |
7d9fb455 JA |
222 | int ret, fd; |
223 | ||
6f260b31 | 224 | ptr = strdup(f->file_name); |
c50ca7bd | 225 | |
dacbbb88 JA |
226 | fname[DUMP_BUF_SZ - 1] = '\0'; |
227 | strncpy(fname, basename(ptr), DUMP_BUF_SZ - 1); | |
228 | ||
229 | buf_left -= strlen(fname); | |
230 | if (buf_left <= 0) { | |
231 | if (!dump_buf_warned) { | |
232 | log_err("fio: verify failure dump buffer too small\n"); | |
233 | dump_buf_warned = 1; | |
234 | } | |
235 | free(ptr); | |
236 | return; | |
237 | } | |
238 | ||
239 | snprintf(fname + strlen(fname), buf_left, ".%llu.%s", offset, type); | |
7d9fb455 JA |
240 | |
241 | fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY, 0644); | |
242 | if (fd < 0) { | |
243 | perror("open verify buf file"); | |
244 | return; | |
245 | } | |
246 | ||
247 | while (len) { | |
248 | ret = write(fd, buf, len); | |
249 | if (!ret) | |
250 | break; | |
251 | else if (ret < 0) { | |
252 | perror("write verify buf file"); | |
253 | break; | |
254 | } | |
255 | len -= ret; | |
256 | buf += ret; | |
257 | } | |
258 | ||
259 | close(fd); | |
c50ca7bd | 260 | log_err(" %s data dumped as %s\n", type, fname); |
6f260b31 | 261 | free(ptr); |
7d9fb455 JA |
262 | } |
263 | ||
c50ca7bd JA |
264 | /* |
265 | * Dump the contents of the read block and re-generate the correct data | |
266 | * and dump that too. | |
267 | */ | |
7d9fb455 JA |
268 | static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc) |
269 | { | |
270 | struct thread_data *td = vc->td; | |
271 | struct io_u *io_u = vc->io_u; | |
272 | unsigned long hdr_offset; | |
7d9fb455 | 273 | struct io_u dummy; |
c50ca7bd | 274 | void *buf; |
7d9fb455 | 275 | |
0dce9bc9 SL |
276 | if (!td->o.verify_dump) |
277 | return; | |
278 | ||
c50ca7bd JA |
279 | /* |
280 | * Dump the contents we just read off disk | |
281 | */ | |
7d9fb455 JA |
282 | hdr_offset = vc->hdr_num * hdr->len; |
283 | ||
c50ca7bd JA |
284 | dump_buf(io_u->buf + hdr_offset, hdr->len, io_u->offset + hdr_offset, |
285 | "received", vc->io_u->file); | |
7d9fb455 | 286 | |
c50ca7bd JA |
287 | /* |
288 | * Allocate a new buf and re-generate the original data | |
289 | */ | |
290 | buf = malloc(io_u->buflen); | |
7d9fb455 | 291 | dummy = *io_u; |
c50ca7bd | 292 | dummy.buf = buf; |
4aae38a6 | 293 | dummy.rand_seed = hdr->rand_seed; |
cfbcd0dc | 294 | dummy.buf_filled_len = 0; |
0d81daf9 | 295 | dummy.buflen = io_u->buflen; |
7d9fb455 | 296 | |
c50ca7bd | 297 | fill_pattern_headers(td, &dummy, hdr->rand_seed, 1); |
7d9fb455 | 298 | |
c50ca7bd JA |
299 | dump_buf(buf + hdr_offset, hdr->len, io_u->offset + hdr_offset, |
300 | "expected", vc->io_u->file); | |
7d9fb455 JA |
301 | free(buf); |
302 | } | |
303 | ||
bfacf389 JA |
304 | static void log_verify_failure(struct verify_header *hdr, struct vcont *vc) |
305 | { | |
306 | unsigned long long offset; | |
307 | ||
308 | offset = vc->io_u->offset; | |
309 | offset += vc->hdr_num * hdr->len; | |
32c17adf JA |
310 | log_err("%.8s: verify failed at file %s offset %llu, length %u\n", |
311 | vc->name, vc->io_u->file->file_name, offset, hdr->len); | |
bfacf389 JA |
312 | |
313 | if (vc->good_crc && vc->bad_crc) { | |
314 | log_err(" Expected CRC: "); | |
315 | hexdump(vc->good_crc, vc->crc_len); | |
316 | log_err(" Received CRC: "); | |
317 | hexdump(vc->bad_crc, vc->crc_len); | |
318 | } | |
7d9fb455 JA |
319 | |
320 | dump_verify_buffers(hdr, vc); | |
bfacf389 JA |
321 | } |
322 | ||
d9f2caf3 JA |
323 | /* |
324 | * Return data area 'header_num' | |
325 | */ | |
936216f8 | 326 | static inline void *io_u_verify_off(struct verify_header *hdr, struct vcont *vc) |
d9f2caf3 | 327 | { |
936216f8 | 328 | return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(hdr); |
d9f2caf3 JA |
329 | } |
330 | ||
92bf48d5 JA |
331 | static int verify_io_u_pattern(struct verify_header *hdr, struct vcont *vc) |
332 | { | |
333 | struct thread_data *td = vc->td; | |
334 | struct io_u *io_u = vc->io_u; | |
335 | char *buf, *pattern; | |
2b13e716 | 336 | unsigned int header_size = __hdr_size(td->o.verify); |
9a2a86d0 | 337 | unsigned int len, mod, i, size, pattern_size; |
92bf48d5 JA |
338 | |
339 | pattern = td->o.verify_pattern; | |
9a2a86d0 SL |
340 | pattern_size = td->o.verify_pattern_bytes; |
341 | if (pattern_size <= 1) | |
342 | pattern_size = MAX_PATTERN_SIZE; | |
2b13e716 JA |
343 | buf = (void *) hdr + header_size; |
344 | len = get_hdr_inc(td, io_u) - header_size; | |
9a2a86d0 SL |
345 | mod = header_size % pattern_size; |
346 | ||
347 | for (i = 0; i < len; i += size) { | |
348 | size = pattern_size - mod; | |
349 | if (size > (len - i)) | |
350 | size = len - i; | |
351 | if (memcmp(buf + i, pattern + mod, size)) | |
e4ad68b1 | 352 | /* Let the slow compare find the first mismatch byte. */ |
9a2a86d0 SL |
353 | break; |
354 | mod = 0; | |
355 | } | |
92bf48d5 | 356 | |
9a2a86d0 | 357 | for (; i < len; i++) { |
92bf48d5 JA |
358 | if (buf[i] != pattern[mod]) { |
359 | unsigned int bits; | |
360 | ||
361 | bits = hweight8(buf[i] ^ pattern[mod]); | |
362 | log_err("fio: got pattern %x, wanted %x. Bad bits %d\n", | |
363 | buf[i], pattern[mod], bits); | |
364 | log_err("fio: bad pattern block offset %u\n", i); | |
365 | dump_verify_buffers(hdr, vc); | |
366 | return EILSEQ; | |
367 | } | |
368 | mod++; | |
369 | if (mod == td->o.verify_pattern_bytes) | |
370 | mod = 0; | |
371 | } | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
376 | static int verify_io_u_meta(struct verify_header *hdr, struct vcont *vc) | |
7437ee87 | 377 | { |
92bf48d5 | 378 | struct thread_data *td = vc->td; |
7437ee87 | 379 | struct vhdr_meta *vh = hdr_priv(hdr); |
936216f8 | 380 | struct io_u *io_u = vc->io_u; |
92bf48d5 | 381 | int ret = EILSEQ; |
7437ee87 | 382 | |
bd6f78b2 JA |
383 | dprint(FD_VERIFY, "meta verify io_u %p, len %u\n", io_u, hdr->len); |
384 | ||
bfacf389 | 385 | if (vh->offset == io_u->offset + vc->hdr_num * td->o.verify_interval) |
92bf48d5 JA |
386 | ret = 0; |
387 | ||
388 | if (td->o.verify_pattern_bytes) | |
389 | ret |= verify_io_u_pattern(hdr, vc); | |
390 | ||
da0a7bd2 JC |
391 | /* |
392 | * For read-only workloads, the program cannot be certain of the | |
8bca6016 JA |
393 | * last numberio written to a block. Checking of numberio will be |
394 | * done only for workloads that write data. For verify_only, | |
395 | * numberio will be checked in the last iteration when the correct | |
396 | * state of numberio, that would have been written to each block | |
397 | * in a previous run of fio, has been reached. | |
da0a7bd2 | 398 | */ |
b7f5c00d JA |
399 | if ((td_write(td) || td_rw(td)) && (td_min_bs(td) == td_max_bs(td)) && |
400 | !td->o.time_based) | |
62167762 JC |
401 | if (!td->o.verify_only || td->o.loops == 0) |
402 | if (vh->numberio != io_u->numberio) | |
403 | ret = EILSEQ; | |
da0a7bd2 | 404 | |
92bf48d5 | 405 | if (!ret) |
bfacf389 | 406 | return 0; |
7437ee87 | 407 | |
bfacf389 JA |
408 | vc->name = "meta"; |
409 | log_verify_failure(hdr, vc); | |
92bf48d5 | 410 | return ret; |
7437ee87 SL |
411 | } |
412 | ||
844ea602 JA |
413 | static int verify_io_u_xxhash(struct verify_header *hdr, struct vcont *vc) |
414 | { | |
415 | void *p = io_u_verify_off(hdr, vc); | |
416 | struct vhdr_xxhash *vh = hdr_priv(hdr); | |
417 | uint32_t hash; | |
418 | void *state; | |
419 | ||
420 | dprint(FD_VERIFY, "xxhash verify io_u %p, len %u\n", vc->io_u, hdr->len); | |
421 | ||
422 | state = XXH32_init(1); | |
423 | XXH32_update(state, p, hdr->len - hdr_size(hdr)); | |
424 | hash = XXH32_digest(state); | |
425 | ||
426 | if (vh->hash == hash) | |
427 | return 0; | |
428 | ||
429 | vc->name = "xxhash"; | |
430 | vc->good_crc = &vh->hash; | |
431 | vc->bad_crc = &hash; | |
432 | vc->crc_len = sizeof(hash); | |
433 | log_verify_failure(hdr, vc); | |
434 | return EILSEQ; | |
435 | } | |
436 | ||
936216f8 | 437 | static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc) |
cd14cc10 | 438 | { |
936216f8 | 439 | void *p = io_u_verify_off(hdr, vc); |
546dfd9f | 440 | struct vhdr_sha512 *vh = hdr_priv(hdr); |
cd14cc10 | 441 | uint8_t sha512[128]; |
25dfa848 | 442 | struct fio_sha512_ctx sha512_ctx = { |
cd14cc10 JA |
443 | .buf = sha512, |
444 | }; | |
445 | ||
936216f8 | 446 | dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len); |
bd6f78b2 | 447 | |
25dfa848 JA |
448 | fio_sha512_init(&sha512_ctx); |
449 | fio_sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr)); | |
cd14cc10 | 450 | |
bfacf389 JA |
451 | if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512))) |
452 | return 0; | |
cd14cc10 | 453 | |
bfacf389 JA |
454 | vc->name = "sha512"; |
455 | vc->good_crc = vh->sha512; | |
456 | vc->bad_crc = sha512_ctx.buf; | |
457 | vc->crc_len = sizeof(vh->sha512); | |
458 | log_verify_failure(hdr, vc); | |
459 | return EILSEQ; | |
cd14cc10 JA |
460 | } |
461 | ||
936216f8 | 462 | static int verify_io_u_sha256(struct verify_header *hdr, struct vcont *vc) |
cd14cc10 | 463 | { |
936216f8 | 464 | void *p = io_u_verify_off(hdr, vc); |
546dfd9f | 465 | struct vhdr_sha256 *vh = hdr_priv(hdr); |
bc77f56f | 466 | uint8_t sha256[64]; |
25dfa848 | 467 | struct fio_sha256_ctx sha256_ctx = { |
cd14cc10 JA |
468 | .buf = sha256, |
469 | }; | |
470 | ||
936216f8 | 471 | dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len); |
bd6f78b2 | 472 | |
25dfa848 JA |
473 | fio_sha256_init(&sha256_ctx); |
474 | fio_sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr)); | |
cd14cc10 | 475 | |
bfacf389 JA |
476 | if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256))) |
477 | return 0; | |
cd14cc10 | 478 | |
bfacf389 JA |
479 | vc->name = "sha256"; |
480 | vc->good_crc = vh->sha256; | |
481 | vc->bad_crc = sha256_ctx.buf; | |
482 | vc->crc_len = sizeof(vh->sha256); | |
483 | log_verify_failure(hdr, vc); | |
484 | return EILSEQ; | |
cd14cc10 JA |
485 | } |
486 | ||
936216f8 | 487 | static int verify_io_u_sha1(struct verify_header *hdr, struct vcont *vc) |
7c353ceb | 488 | { |
936216f8 | 489 | void *p = io_u_verify_off(hdr, vc); |
7c353ceb JA |
490 | struct vhdr_sha1 *vh = hdr_priv(hdr); |
491 | uint32_t sha1[5]; | |
25dfa848 | 492 | struct fio_sha1_ctx sha1_ctx = { |
7c353ceb JA |
493 | .H = sha1, |
494 | }; | |
495 | ||
936216f8 | 496 | dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len); |
7c353ceb | 497 | |
25dfa848 JA |
498 | fio_sha1_init(&sha1_ctx); |
499 | fio_sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr)); | |
7c353ceb | 500 | |
bfacf389 JA |
501 | if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1))) |
502 | return 0; | |
7c353ceb | 503 | |
bfacf389 JA |
504 | vc->name = "sha1"; |
505 | vc->good_crc = vh->sha1; | |
506 | vc->bad_crc = sha1_ctx.H; | |
507 | vc->crc_len = sizeof(vh->sha1); | |
508 | log_verify_failure(hdr, vc); | |
509 | return EILSEQ; | |
7c353ceb JA |
510 | } |
511 | ||
936216f8 | 512 | static int verify_io_u_crc7(struct verify_header *hdr, struct vcont *vc) |
1e154bdb | 513 | { |
936216f8 | 514 | void *p = io_u_verify_off(hdr, vc); |
546dfd9f | 515 | struct vhdr_crc7 *vh = hdr_priv(hdr); |
1e154bdb JA |
516 | unsigned char c; |
517 | ||
936216f8 | 518 | dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len); |
bd6f78b2 | 519 | |
25dfa848 | 520 | c = fio_crc7(p, hdr->len - hdr_size(hdr)); |
1e154bdb | 521 | |
bfacf389 JA |
522 | if (c == vh->crc7) |
523 | return 0; | |
1e154bdb | 524 | |
bfacf389 JA |
525 | vc->name = "crc7"; |
526 | vc->good_crc = &vh->crc7; | |
527 | vc->bad_crc = &c; | |
528 | vc->crc_len = 1; | |
529 | log_verify_failure(hdr, vc); | |
530 | return EILSEQ; | |
1e154bdb JA |
531 | } |
532 | ||
936216f8 | 533 | static int verify_io_u_crc16(struct verify_header *hdr, struct vcont *vc) |
969f7ed3 | 534 | { |
936216f8 | 535 | void *p = io_u_verify_off(hdr, vc); |
546dfd9f | 536 | struct vhdr_crc16 *vh = hdr_priv(hdr); |
969f7ed3 JA |
537 | unsigned short c; |
538 | ||
936216f8 | 539 | dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len); |
bd6f78b2 | 540 | |
25dfa848 | 541 | c = fio_crc16(p, hdr->len - hdr_size(hdr)); |
969f7ed3 | 542 | |
bfacf389 JA |
543 | if (c == vh->crc16) |
544 | return 0; | |
969f7ed3 | 545 | |
bfacf389 JA |
546 | vc->name = "crc16"; |
547 | vc->good_crc = &vh->crc16; | |
548 | vc->bad_crc = &c; | |
549 | vc->crc_len = 2; | |
550 | log_verify_failure(hdr, vc); | |
551 | return EILSEQ; | |
969f7ed3 JA |
552 | } |
553 | ||
936216f8 | 554 | static int verify_io_u_crc64(struct verify_header *hdr, struct vcont *vc) |
d77a7af3 | 555 | { |
936216f8 | 556 | void *p = io_u_verify_off(hdr, vc); |
546dfd9f | 557 | struct vhdr_crc64 *vh = hdr_priv(hdr); |
d77a7af3 JA |
558 | unsigned long long c; |
559 | ||
936216f8 | 560 | dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len); |
bd6f78b2 | 561 | |
25dfa848 | 562 | c = fio_crc64(p, hdr->len - hdr_size(hdr)); |
d77a7af3 | 563 | |
bfacf389 JA |
564 | if (c == vh->crc64) |
565 | return 0; | |
d77a7af3 | 566 | |
bfacf389 JA |
567 | vc->name = "crc64"; |
568 | vc->good_crc = &vh->crc64; | |
569 | vc->bad_crc = &c; | |
570 | vc->crc_len = 8; | |
571 | log_verify_failure(hdr, vc); | |
572 | return EILSEQ; | |
d77a7af3 JA |
573 | } |
574 | ||
936216f8 | 575 | static int verify_io_u_crc32(struct verify_header *hdr, struct vcont *vc) |
e29d1b70 | 576 | { |
936216f8 | 577 | void *p = io_u_verify_off(hdr, vc); |
546dfd9f JA |
578 | struct vhdr_crc32 *vh = hdr_priv(hdr); |
579 | uint32_t c; | |
e29d1b70 | 580 | |
936216f8 | 581 | dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len); |
bd6f78b2 | 582 | |
25dfa848 | 583 | c = fio_crc32(p, hdr->len - hdr_size(hdr)); |
e29d1b70 | 584 | |
bfacf389 JA |
585 | if (c == vh->crc32) |
586 | return 0; | |
e29d1b70 | 587 | |
bfacf389 JA |
588 | vc->name = "crc32"; |
589 | vc->good_crc = &vh->crc32; | |
590 | vc->bad_crc = &c; | |
591 | vc->crc_len = 4; | |
592 | log_verify_failure(hdr, vc); | |
593 | return EILSEQ; | |
e29d1b70 JA |
594 | } |
595 | ||
936216f8 | 596 | static int verify_io_u_crc32c(struct verify_header *hdr, struct vcont *vc) |
bac39e0e | 597 | { |
936216f8 | 598 | void *p = io_u_verify_off(hdr, vc); |
bac39e0e JA |
599 | struct vhdr_crc32 *vh = hdr_priv(hdr); |
600 | uint32_t c; | |
601 | ||
936216f8 | 602 | dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len); |
bac39e0e | 603 | |
25dfa848 | 604 | c = fio_crc32c(p, hdr->len - hdr_size(hdr)); |
bac39e0e | 605 | |
bfacf389 JA |
606 | if (c == vh->crc32) |
607 | return 0; | |
bac39e0e | 608 | |
bfacf389 JA |
609 | vc->name = "crc32c"; |
610 | vc->good_crc = &vh->crc32; | |
611 | vc->bad_crc = &c; | |
612 | vc->crc_len = 4; | |
613 | log_verify_failure(hdr, vc); | |
614 | return EILSEQ; | |
bac39e0e JA |
615 | } |
616 | ||
936216f8 | 617 | static int verify_io_u_md5(struct verify_header *hdr, struct vcont *vc) |
e29d1b70 | 618 | { |
936216f8 | 619 | void *p = io_u_verify_off(hdr, vc); |
546dfd9f | 620 | struct vhdr_md5 *vh = hdr_priv(hdr); |
8c432325 | 621 | uint32_t hash[MD5_HASH_WORDS]; |
25dfa848 | 622 | struct fio_md5_ctx md5_ctx = { |
8c432325 JA |
623 | .hash = hash, |
624 | }; | |
e29d1b70 | 625 | |
936216f8 | 626 | dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len); |
bd6f78b2 | 627 | |
25dfa848 JA |
628 | fio_md5_init(&md5_ctx); |
629 | fio_md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr)); | |
e29d1b70 | 630 | |
bfacf389 JA |
631 | if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash))) |
632 | return 0; | |
e29d1b70 | 633 | |
bfacf389 JA |
634 | vc->name = "md5"; |
635 | vc->good_crc = vh->md5_digest; | |
636 | vc->bad_crc = md5_ctx.hash; | |
637 | vc->crc_len = sizeof(hash); | |
638 | log_verify_failure(hdr, vc); | |
639 | return EILSEQ; | |
e29d1b70 JA |
640 | } |
641 | ||
e8462bd8 JA |
642 | /* |
643 | * Push IO verification to a separate thread | |
644 | */ | |
f8b0bd10 | 645 | int verify_io_u_async(struct thread_data *td, struct io_u **io_u_ptr) |
e8462bd8 | 646 | { |
f8b0bd10 | 647 | struct io_u *io_u = *io_u_ptr; |
e8462bd8 | 648 | |
e8462bd8 | 649 | pthread_mutex_lock(&td->io_u_lock); |
d7ee2a7d | 650 | |
f8b0bd10 JA |
651 | if (io_u->file) |
652 | put_file_log(td, io_u->file); | |
653 | ||
0c41214f RR |
654 | if (io_u->flags & IO_U_F_IN_CUR_DEPTH) { |
655 | td->cur_depth--; | |
656 | io_u->flags &= ~IO_U_F_IN_CUR_DEPTH; | |
657 | } | |
2ae0b204 | 658 | flist_add_tail(&io_u->verify_list, &td->verify_list); |
f8b0bd10 | 659 | *io_u_ptr = NULL; |
e8462bd8 JA |
660 | pthread_mutex_unlock(&td->io_u_lock); |
661 | ||
662 | pthread_cond_signal(&td->verify_cond); | |
e8462bd8 JA |
663 | return 0; |
664 | } | |
665 | ||
0d29de83 JA |
666 | static int verify_trimmed_io_u(struct thread_data *td, struct io_u *io_u) |
667 | { | |
668 | static char zero_buf[1024]; | |
669 | unsigned int this_len, len; | |
670 | int ret = 0; | |
671 | void *p; | |
672 | ||
673 | if (!td->o.trim_zero) | |
674 | return 0; | |
675 | ||
676 | len = io_u->buflen; | |
677 | p = io_u->buf; | |
678 | do { | |
679 | this_len = sizeof(zero_buf); | |
680 | if (this_len > len) | |
681 | this_len = len; | |
682 | if (memcmp(p, zero_buf, this_len)) { | |
683 | ret = EILSEQ; | |
684 | break; | |
685 | } | |
686 | len -= this_len; | |
687 | p += this_len; | |
688 | } while (len); | |
689 | ||
690 | if (!ret) | |
691 | return 0; | |
692 | ||
a917a8b3 JA |
693 | log_err("trim: verify failed at file %s offset %llu, length %lu" |
694 | ", block offset %lu\n", | |
695 | io_u->file->file_name, io_u->offset, io_u->buflen, | |
2f68124f | 696 | (unsigned long) (p - io_u->buf)); |
0d29de83 JA |
697 | return ret; |
698 | } | |
699 | ||
5964842c AG |
700 | static int verify_header(struct io_u *io_u, struct verify_header *hdr, |
701 | unsigned int hdr_num, unsigned int hdr_len) | |
f65d1c26 JA |
702 | { |
703 | void *p = hdr; | |
704 | uint32_t crc; | |
705 | ||
5964842c AG |
706 | if (hdr->magic != FIO_HDR_MAGIC) { |
707 | log_err("verify: bad magic header %x, wanted %x", | |
708 | hdr->magic, FIO_HDR_MAGIC); | |
709 | goto err; | |
710 | } | |
4445856a | 711 | if (hdr->len != hdr_len) { |
5964842c AG |
712 | log_err("verify: bad header length %u, wanted %u", |
713 | hdr->len, hdr_len); | |
714 | goto err; | |
715 | } | |
716 | if (hdr->rand_seed != io_u->rand_seed) { | |
717 | log_err("verify: bad header rand_seed %"PRIu64 | |
718 | ", wanted %"PRIu64, | |
719 | hdr->rand_seed, io_u->rand_seed); | |
720 | goto err; | |
721 | } | |
ae38c0dc | 722 | |
25dfa848 | 723 | crc = fio_crc32c(p, offsetof(struct verify_header, crc32)); |
5964842c AG |
724 | if (crc != hdr->crc32) { |
725 | log_err("verify: bad header crc %x, calculated %x", | |
726 | hdr->crc32, crc); | |
727 | goto err; | |
728 | } | |
729 | return 0; | |
730 | ||
731 | err: | |
732 | log_err(" at file %s offset %llu, length %u\n", | |
733 | io_u->file->file_name, | |
734 | io_u->offset + hdr_num * hdr_len, hdr_len); | |
735 | return EILSEQ; | |
f65d1c26 JA |
736 | } |
737 | ||
f8b0bd10 | 738 | int verify_io_u(struct thread_data *td, struct io_u **io_u_ptr) |
e29d1b70 | 739 | { |
3f9f4e26 | 740 | struct verify_header *hdr; |
f8b0bd10 | 741 | struct io_u *io_u = *io_u_ptr; |
2b13e716 | 742 | unsigned int header_size, hdr_inc, hdr_num = 0; |
95646108 | 743 | void *p; |
e29d1b70 JA |
744 | int ret; |
745 | ||
1dcc0498 | 746 | if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ) |
36690c9b | 747 | return 0; |
5c57c084 JA |
748 | /* |
749 | * If the IO engine is faking IO (like null), then just pretend | |
750 | * we verified everything. | |
751 | */ | |
752 | if (td->io_ops->flags & FIO_FAKEIO) | |
753 | return 0; | |
754 | ||
0d29de83 JA |
755 | if (io_u->flags & IO_U_F_TRIMMED) { |
756 | ret = verify_trimmed_io_u(td, io_u); | |
757 | goto done; | |
758 | } | |
36690c9b | 759 | |
cfbcd0dc | 760 | hdr_inc = get_hdr_inc(td, io_u); |
e29d1b70 | 761 | |
a12a3b4d | 762 | ret = 0; |
5ec10eaa JA |
763 | for (p = io_u->buf; p < io_u->buf + io_u->buflen; |
764 | p += hdr_inc, hdr_num++) { | |
bfacf389 JA |
765 | struct vcont vc = { |
766 | .io_u = io_u, | |
767 | .hdr_num = hdr_num, | |
7d9fb455 | 768 | .td = td, |
bfacf389 | 769 | }; |
f00b210f | 770 | unsigned int verify_type; |
936216f8 | 771 | |
f3e6cb95 | 772 | if (ret && td->o.verify_fatal) |
a12a3b4d | 773 | break; |
f3e6cb95 | 774 | |
2b13e716 | 775 | header_size = __hdr_size(td->o.verify); |
a59e170d | 776 | if (td->o.verify_offset) |
2b13e716 | 777 | memswp(p, p + td->o.verify_offset, header_size); |
95646108 | 778 | hdr = p; |
e29d1b70 | 779 | |
c4b6117b PV |
780 | /* |
781 | * Make rand_seed check pass when have verifysort or | |
782 | * verify_backlog. | |
783 | */ | |
784 | if (td->o.verifysort || (td->flags & TD_F_VER_BACKLOG)) | |
785 | io_u->rand_seed = hdr->rand_seed; | |
786 | ||
5964842c AG |
787 | ret = verify_header(io_u, hdr, hdr_num, hdr_inc); |
788 | if (ret) | |
789 | return ret; | |
3f199b01 | 790 | |
f00b210f JA |
791 | if (td->o.verify != VERIFY_NONE) |
792 | verify_type = td->o.verify; | |
793 | else | |
794 | verify_type = hdr->verify_type; | |
795 | ||
796 | switch (verify_type) { | |
3f9f4e26 | 797 | case VERIFY_MD5: |
936216f8 | 798 | ret = verify_io_u_md5(hdr, &vc); |
3f9f4e26 SL |
799 | break; |
800 | case VERIFY_CRC64: | |
936216f8 | 801 | ret = verify_io_u_crc64(hdr, &vc); |
3f9f4e26 | 802 | break; |
bac39e0e | 803 | case VERIFY_CRC32C: |
3845591f | 804 | case VERIFY_CRC32C_INTEL: |
936216f8 | 805 | ret = verify_io_u_crc32c(hdr, &vc); |
bac39e0e | 806 | break; |
3f9f4e26 | 807 | case VERIFY_CRC32: |
936216f8 | 808 | ret = verify_io_u_crc32(hdr, &vc); |
3f9f4e26 SL |
809 | break; |
810 | case VERIFY_CRC16: | |
936216f8 | 811 | ret = verify_io_u_crc16(hdr, &vc); |
3f9f4e26 SL |
812 | break; |
813 | case VERIFY_CRC7: | |
936216f8 | 814 | ret = verify_io_u_crc7(hdr, &vc); |
3f9f4e26 | 815 | break; |
cd14cc10 | 816 | case VERIFY_SHA256: |
936216f8 | 817 | ret = verify_io_u_sha256(hdr, &vc); |
cd14cc10 JA |
818 | break; |
819 | case VERIFY_SHA512: | |
936216f8 | 820 | ret = verify_io_u_sha512(hdr, &vc); |
cd14cc10 | 821 | break; |
844ea602 JA |
822 | case VERIFY_XXHASH: |
823 | ret = verify_io_u_xxhash(hdr, &vc); | |
824 | break; | |
7437ee87 | 825 | case VERIFY_META: |
92bf48d5 | 826 | ret = verify_io_u_meta(hdr, &vc); |
7437ee87 | 827 | break; |
7c353ceb | 828 | case VERIFY_SHA1: |
936216f8 | 829 | ret = verify_io_u_sha1(hdr, &vc); |
7c353ceb | 830 | break; |
92bf48d5 JA |
831 | case VERIFY_PATTERN: |
832 | ret = verify_io_u_pattern(hdr, &vc); | |
833 | break; | |
3f9f4e26 SL |
834 | default: |
835 | log_err("Bad verify type %u\n", hdr->verify_type); | |
d16d4e09 | 836 | ret = EINVAL; |
3f9f4e26 | 837 | } |
f00b210f JA |
838 | |
839 | if (ret && verify_type != hdr->verify_type) | |
840 | log_err("fio: verify type mismatch (%u media, %u given)\n", | |
841 | hdr->verify_type, verify_type); | |
3f9f4e26 | 842 | } |
a7dfe862 | 843 | |
0d29de83 | 844 | done: |
f3e6cb95 | 845 | if (ret && td->o.verify_fatal) |
ebea2133 | 846 | fio_mark_td_terminate(td); |
f3e6cb95 | 847 | |
a12a3b4d | 848 | return ret; |
e29d1b70 JA |
849 | } |
850 | ||
7437ee87 | 851 | static void fill_meta(struct verify_header *hdr, struct thread_data *td, |
5ec10eaa | 852 | struct io_u *io_u, unsigned int header_num) |
7437ee87 SL |
853 | { |
854 | struct vhdr_meta *vh = hdr_priv(hdr); | |
855 | ||
856 | vh->thread = td->thread_number; | |
857 | ||
858 | vh->time_sec = io_u->start_time.tv_sec; | |
859 | vh->time_usec = io_u->start_time.tv_usec; | |
860 | ||
da0a7bd2 | 861 | vh->numberio = io_u->numberio; |
7437ee87 SL |
862 | |
863 | vh->offset = io_u->offset + header_num * td->o.verify_interval; | |
864 | } | |
865 | ||
844ea602 JA |
866 | static void fill_xxhash(struct verify_header *hdr, void *p, unsigned int len) |
867 | { | |
868 | struct vhdr_xxhash *vh = hdr_priv(hdr); | |
869 | void *state; | |
870 | ||
871 | state = XXH32_init(1); | |
872 | XXH32_update(state, p, len); | |
873 | vh->hash = XXH32_digest(state); | |
874 | } | |
875 | ||
cd14cc10 JA |
876 | static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len) |
877 | { | |
546dfd9f | 878 | struct vhdr_sha512 *vh = hdr_priv(hdr); |
25dfa848 | 879 | struct fio_sha512_ctx sha512_ctx = { |
546dfd9f | 880 | .buf = vh->sha512, |
cd14cc10 JA |
881 | }; |
882 | ||
25dfa848 JA |
883 | fio_sha512_init(&sha512_ctx); |
884 | fio_sha512_update(&sha512_ctx, p, len); | |
cd14cc10 JA |
885 | } |
886 | ||
887 | static void fill_sha256(struct verify_header *hdr, void *p, unsigned int len) | |
888 | { | |
546dfd9f | 889 | struct vhdr_sha256 *vh = hdr_priv(hdr); |
25dfa848 | 890 | struct fio_sha256_ctx sha256_ctx = { |
546dfd9f | 891 | .buf = vh->sha256, |
cd14cc10 JA |
892 | }; |
893 | ||
25dfa848 JA |
894 | fio_sha256_init(&sha256_ctx); |
895 | fio_sha256_update(&sha256_ctx, p, len); | |
cd14cc10 JA |
896 | } |
897 | ||
7c353ceb JA |
898 | static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len) |
899 | { | |
900 | struct vhdr_sha1 *vh = hdr_priv(hdr); | |
25dfa848 | 901 | struct fio_sha1_ctx sha1_ctx = { |
7c353ceb JA |
902 | .H = vh->sha1, |
903 | }; | |
904 | ||
25dfa848 JA |
905 | fio_sha1_init(&sha1_ctx); |
906 | fio_sha1_update(&sha1_ctx, p, len); | |
7c353ceb JA |
907 | } |
908 | ||
1e154bdb JA |
909 | static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len) |
910 | { | |
546dfd9f JA |
911 | struct vhdr_crc7 *vh = hdr_priv(hdr); |
912 | ||
25dfa848 | 913 | vh->crc7 = fio_crc7(p, len); |
1e154bdb JA |
914 | } |
915 | ||
969f7ed3 JA |
916 | static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len) |
917 | { | |
546dfd9f JA |
918 | struct vhdr_crc16 *vh = hdr_priv(hdr); |
919 | ||
25dfa848 | 920 | vh->crc16 = fio_crc16(p, len); |
969f7ed3 JA |
921 | } |
922 | ||
e29d1b70 JA |
923 | static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len) |
924 | { | |
546dfd9f JA |
925 | struct vhdr_crc32 *vh = hdr_priv(hdr); |
926 | ||
25dfa848 | 927 | vh->crc32 = fio_crc32(p, len); |
e29d1b70 JA |
928 | } |
929 | ||
bac39e0e JA |
930 | static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len) |
931 | { | |
932 | struct vhdr_crc32 *vh = hdr_priv(hdr); | |
933 | ||
25dfa848 | 934 | vh->crc32 = fio_crc32c(p, len); |
bac39e0e JA |
935 | } |
936 | ||
d77a7af3 JA |
937 | static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len) |
938 | { | |
546dfd9f JA |
939 | struct vhdr_crc64 *vh = hdr_priv(hdr); |
940 | ||
25dfa848 | 941 | vh->crc64 = fio_crc64(p, len); |
d77a7af3 JA |
942 | } |
943 | ||
e29d1b70 JA |
944 | static void fill_md5(struct verify_header *hdr, void *p, unsigned int len) |
945 | { | |
546dfd9f | 946 | struct vhdr_md5 *vh = hdr_priv(hdr); |
25dfa848 | 947 | struct fio_md5_ctx md5_ctx = { |
546dfd9f | 948 | .hash = (uint32_t *) vh->md5_digest, |
8c432325 | 949 | }; |
e29d1b70 | 950 | |
25dfa848 JA |
951 | fio_md5_init(&md5_ctx); |
952 | fio_md5_update(&md5_ctx, p, len); | |
e29d1b70 JA |
953 | } |
954 | ||
7d9fb455 JA |
955 | static void populate_hdr(struct thread_data *td, struct io_u *io_u, |
956 | struct verify_header *hdr, unsigned int header_num, | |
957 | unsigned int header_len) | |
958 | { | |
959 | unsigned int data_len; | |
960 | void *data, *p; | |
961 | ||
962 | p = (void *) hdr; | |
963 | ||
d3a173a9 | 964 | hdr->magic = FIO_HDR_MAGIC; |
7d9fb455 | 965 | hdr->verify_type = td->o.verify; |
d3a173a9 | 966 | hdr->len = header_len; |
7d9fb455 | 967 | hdr->rand_seed = io_u->rand_seed; |
25dfa848 | 968 | hdr->crc32 = fio_crc32c(p, offsetof(struct verify_header, crc32)); |
f65d1c26 | 969 | |
7d9fb455 JA |
970 | data_len = header_len - hdr_size(hdr); |
971 | ||
972 | data = p + hdr_size(hdr); | |
973 | switch (td->o.verify) { | |
974 | case VERIFY_MD5: | |
975 | dprint(FD_VERIFY, "fill md5 io_u %p, len %u\n", | |
976 | io_u, hdr->len); | |
977 | fill_md5(hdr, data, data_len); | |
978 | break; | |
979 | case VERIFY_CRC64: | |
980 | dprint(FD_VERIFY, "fill crc64 io_u %p, len %u\n", | |
981 | io_u, hdr->len); | |
982 | fill_crc64(hdr, data, data_len); | |
983 | break; | |
984 | case VERIFY_CRC32C: | |
985 | case VERIFY_CRC32C_INTEL: | |
986 | dprint(FD_VERIFY, "fill crc32c io_u %p, len %u\n", | |
987 | io_u, hdr->len); | |
988 | fill_crc32c(hdr, data, data_len); | |
989 | break; | |
990 | case VERIFY_CRC32: | |
991 | dprint(FD_VERIFY, "fill crc32 io_u %p, len %u\n", | |
992 | io_u, hdr->len); | |
993 | fill_crc32(hdr, data, data_len); | |
994 | break; | |
995 | case VERIFY_CRC16: | |
996 | dprint(FD_VERIFY, "fill crc16 io_u %p, len %u\n", | |
997 | io_u, hdr->len); | |
998 | fill_crc16(hdr, data, data_len); | |
999 | break; | |
1000 | case VERIFY_CRC7: | |
1001 | dprint(FD_VERIFY, "fill crc7 io_u %p, len %u\n", | |
1002 | io_u, hdr->len); | |
1003 | fill_crc7(hdr, data, data_len); | |
1004 | break; | |
1005 | case VERIFY_SHA256: | |
1006 | dprint(FD_VERIFY, "fill sha256 io_u %p, len %u\n", | |
1007 | io_u, hdr->len); | |
1008 | fill_sha256(hdr, data, data_len); | |
1009 | break; | |
1010 | case VERIFY_SHA512: | |
1011 | dprint(FD_VERIFY, "fill sha512 io_u %p, len %u\n", | |
1012 | io_u, hdr->len); | |
1013 | fill_sha512(hdr, data, data_len); | |
1014 | break; | |
844ea602 JA |
1015 | case VERIFY_XXHASH: |
1016 | dprint(FD_VERIFY, "fill xxhash io_u %p, len %u\n", | |
1017 | io_u, hdr->len); | |
1018 | fill_xxhash(hdr, data, data_len); | |
1019 | break; | |
7d9fb455 JA |
1020 | case VERIFY_META: |
1021 | dprint(FD_VERIFY, "fill meta io_u %p, len %u\n", | |
1022 | io_u, hdr->len); | |
1023 | fill_meta(hdr, td, io_u, header_num); | |
1024 | break; | |
1025 | case VERIFY_SHA1: | |
1026 | dprint(FD_VERIFY, "fill sha1 io_u %p, len %u\n", | |
1027 | io_u, hdr->len); | |
1028 | fill_sha1(hdr, data, data_len); | |
1029 | break; | |
92bf48d5 JA |
1030 | case VERIFY_PATTERN: |
1031 | /* nothing to do here */ | |
1032 | break; | |
7d9fb455 JA |
1033 | default: |
1034 | log_err("fio: bad verify type: %d\n", td->o.verify); | |
1035 | assert(0); | |
1036 | } | |
1037 | if (td->o.verify_offset) | |
1038 | memswp(p, p + td->o.verify_offset, hdr_size(hdr)); | |
1039 | } | |
1040 | ||
e29d1b70 JA |
1041 | /* |
1042 | * fill body of io_u->buf with random data and add a header with the | |
c50ca7bd | 1043 | * checksum of choice |
e29d1b70 JA |
1044 | */ |
1045 | void populate_verify_io_u(struct thread_data *td, struct io_u *io_u) | |
1046 | { | |
9cc3d150 JA |
1047 | if (td->o.verify == VERIFY_NULL) |
1048 | return; | |
1049 | ||
da0a7bd2 JC |
1050 | io_u->numberio = td->io_issues[io_u->ddir]; |
1051 | ||
c50ca7bd | 1052 | fill_pattern_headers(td, io_u, 0, 0); |
e29d1b70 JA |
1053 | } |
1054 | ||
1055 | int get_next_verify(struct thread_data *td, struct io_u *io_u) | |
1056 | { | |
8de8f047 | 1057 | struct io_piece *ipo = NULL; |
e29d1b70 | 1058 | |
d2d7fa53 JA |
1059 | /* |
1060 | * this io_u is from a requeue, we already filled the offsets | |
1061 | */ | |
1062 | if (io_u->file) | |
1063 | return 0; | |
1064 | ||
8de8f047 JA |
1065 | if (!RB_EMPTY_ROOT(&td->io_hist_tree)) { |
1066 | struct rb_node *n = rb_first(&td->io_hist_tree); | |
e29d1b70 | 1067 | |
8de8f047 | 1068 | ipo = rb_entry(n, struct io_piece, rb_node); |
f9401285 JA |
1069 | |
1070 | /* | |
1071 | * Ensure that the associated IO has completed | |
1072 | */ | |
1073 | read_barrier(); | |
1074 | if (ipo->flags & IP_F_IN_FLIGHT) | |
1075 | goto nothing; | |
1076 | ||
4b87898e | 1077 | rb_erase(n, &td->io_hist_tree); |
a917a8b3 JA |
1078 | assert(ipo->flags & IP_F_ONRB); |
1079 | ipo->flags &= ~IP_F_ONRB; | |
01743ee1 | 1080 | } else if (!flist_empty(&td->io_hist_list)) { |
9342d5f8 | 1081 | ipo = flist_first_entry(&td->io_hist_list, struct io_piece, list); |
f9401285 JA |
1082 | |
1083 | /* | |
1084 | * Ensure that the associated IO has completed | |
1085 | */ | |
1086 | read_barrier(); | |
1087 | if (ipo->flags & IP_F_IN_FLIGHT) | |
1088 | goto nothing; | |
1089 | ||
01743ee1 | 1090 | flist_del(&ipo->list); |
a917a8b3 JA |
1091 | assert(ipo->flags & IP_F_ONLIST); |
1092 | ipo->flags &= ~IP_F_ONLIST; | |
8de8f047 | 1093 | } |
e29d1b70 | 1094 | |
8de8f047 | 1095 | if (ipo) { |
0d29de83 JA |
1096 | td->io_hist_len--; |
1097 | ||
e29d1b70 JA |
1098 | io_u->offset = ipo->offset; |
1099 | io_u->buflen = ipo->len; | |
da0a7bd2 | 1100 | io_u->numberio = ipo->numberio; |
36167d82 | 1101 | io_u->file = ipo->file; |
82af2a7c | 1102 | io_u->flags |= IO_U_F_VER_LIST; |
97af62ce | 1103 | |
0d29de83 JA |
1104 | if (ipo->flags & IP_F_TRIMMED) |
1105 | io_u->flags |= IO_U_F_TRIMMED; | |
1106 | ||
d6aed795 | 1107 | if (!fio_file_open(io_u->file)) { |
97af62ce JA |
1108 | int r = td_io_open_file(td, io_u->file); |
1109 | ||
bd6f78b2 JA |
1110 | if (r) { |
1111 | dprint(FD_VERIFY, "failed file %s open\n", | |
1112 | io_u->file->file_name); | |
97af62ce | 1113 | return 1; |
bd6f78b2 | 1114 | } |
97af62ce JA |
1115 | } |
1116 | ||
1117 | get_file(ipo->file); | |
d6aed795 | 1118 | assert(fio_file_open(io_u->file)); |
e29d1b70 | 1119 | io_u->ddir = DDIR_READ; |
36167d82 JA |
1120 | io_u->xfer_buf = io_u->buf; |
1121 | io_u->xfer_buflen = io_u->buflen; | |
0d29de83 JA |
1122 | |
1123 | remove_trim_entry(td, ipo); | |
e29d1b70 | 1124 | free(ipo); |
bd6f78b2 | 1125 | dprint(FD_VERIFY, "get_next_verify: ret io_u %p\n", io_u); |
c4b6117b PV |
1126 | |
1127 | if (!td->o.verify_pattern_bytes) { | |
d6b72507 | 1128 | io_u->rand_seed = __rand(&td->verify_state); |
c4b6117b | 1129 | if (sizeof(int) != sizeof(long *)) |
d6b72507 | 1130 | io_u->rand_seed *= __rand(&td->verify_state); |
c4b6117b | 1131 | } |
e29d1b70 JA |
1132 | return 0; |
1133 | } | |
1134 | ||
f9401285 | 1135 | nothing: |
bd6f78b2 | 1136 | dprint(FD_VERIFY, "get_next_verify: empty\n"); |
e29d1b70 JA |
1137 | return 1; |
1138 | } | |
e8462bd8 | 1139 | |
dc5bfbb2 JA |
1140 | void fio_verify_init(struct thread_data *td) |
1141 | { | |
1142 | if (td->o.verify == VERIFY_CRC32C_INTEL || | |
1143 | td->o.verify == VERIFY_CRC32C) { | |
1144 | crc32c_intel_probe(); | |
1145 | } | |
1146 | } | |
1147 | ||
e8462bd8 JA |
1148 | static void *verify_async_thread(void *data) |
1149 | { | |
1150 | struct thread_data *td = data; | |
1151 | struct io_u *io_u; | |
1152 | int ret = 0; | |
1153 | ||
b2a9e649 | 1154 | if (fio_option_is_set(&td->o, verify_cpumask) && |
e8462bd8 JA |
1155 | fio_setaffinity(td->pid, td->o.verify_cpumask)) { |
1156 | log_err("fio: failed setting verify thread affinity\n"); | |
1157 | goto done; | |
1158 | } | |
1159 | ||
1160 | do { | |
e53ab27c JA |
1161 | FLIST_HEAD(list); |
1162 | ||
e8462bd8 JA |
1163 | read_barrier(); |
1164 | if (td->verify_thread_exit) | |
1165 | break; | |
1166 | ||
1167 | pthread_mutex_lock(&td->io_u_lock); | |
1168 | ||
1169 | while (flist_empty(&td->verify_list) && | |
1170 | !td->verify_thread_exit) { | |
b36e298b JA |
1171 | ret = pthread_cond_wait(&td->verify_cond, |
1172 | &td->io_u_lock); | |
e8462bd8 JA |
1173 | if (ret) { |
1174 | pthread_mutex_unlock(&td->io_u_lock); | |
1175 | break; | |
1176 | } | |
1177 | } | |
1178 | ||
e53ab27c JA |
1179 | flist_splice_init(&td->verify_list, &list); |
1180 | pthread_mutex_unlock(&td->io_u_lock); | |
1181 | ||
1182 | if (flist_empty(&list)) | |
e8462bd8 | 1183 | continue; |
e8462bd8 | 1184 | |
e53ab27c | 1185 | while (!flist_empty(&list)) { |
9342d5f8 | 1186 | io_u = flist_first_entry(&list, struct io_u, verify_list); |
f8b0bd10 JA |
1187 | flist_del_init(&io_u->verify_list); |
1188 | ||
1189 | io_u->flags |= IO_U_F_NO_FILE_PUT; | |
1190 | ret = verify_io_u(td, &io_u); | |
e8462bd8 | 1191 | |
e53ab27c | 1192 | put_io_u(td, io_u); |
d561f2ab JA |
1193 | if (!ret) |
1194 | continue; | |
8b28bd41 | 1195 | if (td_non_fatal_error(td, ERROR_TYPE_VERIFY_BIT, ret)) { |
d561f2ab JA |
1196 | update_error_count(td, ret); |
1197 | td_clear_error(td); | |
1198 | ret = 0; | |
1199 | } | |
e53ab27c | 1200 | } |
e8462bd8 JA |
1201 | } while (!ret); |
1202 | ||
d561f2ab JA |
1203 | if (ret) { |
1204 | td_verror(td, ret, "async_verify"); | |
f3e6cb95 | 1205 | if (td->o.verify_fatal) |
ebea2133 | 1206 | fio_mark_td_terminate(td); |
d561f2ab JA |
1207 | } |
1208 | ||
e8462bd8 JA |
1209 | done: |
1210 | pthread_mutex_lock(&td->io_u_lock); | |
1211 | td->nr_verify_threads--; | |
1212 | pthread_mutex_unlock(&td->io_u_lock); | |
1213 | ||
1214 | pthread_cond_signal(&td->free_cond); | |
1215 | return NULL; | |
1216 | } | |
1217 | ||
1218 | int verify_async_init(struct thread_data *td) | |
1219 | { | |
1220 | int i, ret; | |
304a47c7 VA |
1221 | pthread_attr_t attr; |
1222 | ||
1223 | pthread_attr_init(&attr); | |
1224 | pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN); | |
e8462bd8 JA |
1225 | |
1226 | td->verify_thread_exit = 0; | |
1227 | ||
1228 | td->verify_threads = malloc(sizeof(pthread_t) * td->o.verify_async); | |
1229 | for (i = 0; i < td->o.verify_async; i++) { | |
304a47c7 | 1230 | ret = pthread_create(&td->verify_threads[i], &attr, |
e8462bd8 JA |
1231 | verify_async_thread, td); |
1232 | if (ret) { | |
1233 | log_err("fio: async verify creation failed: %s\n", | |
1234 | strerror(ret)); | |
1235 | break; | |
1236 | } | |
1237 | ret = pthread_detach(td->verify_threads[i]); | |
1238 | if (ret) { | |
1239 | log_err("fio: async verify thread detach failed: %s\n", | |
1240 | strerror(ret)); | |
1241 | break; | |
1242 | } | |
1243 | td->nr_verify_threads++; | |
1244 | } | |
1245 | ||
304a47c7 VA |
1246 | pthread_attr_destroy(&attr); |
1247 | ||
e8462bd8 | 1248 | if (i != td->o.verify_async) { |
e40823b1 | 1249 | log_err("fio: only %d verify threads started, exiting\n", i); |
e8462bd8 JA |
1250 | td->verify_thread_exit = 1; |
1251 | write_barrier(); | |
1252 | pthread_cond_broadcast(&td->verify_cond); | |
1253 | return 1; | |
1254 | } | |
1255 | ||
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | void verify_async_exit(struct thread_data *td) | |
1260 | { | |
1261 | td->verify_thread_exit = 1; | |
1262 | write_barrier(); | |
1263 | pthread_cond_broadcast(&td->verify_cond); | |
1264 | ||
1265 | pthread_mutex_lock(&td->io_u_lock); | |
1266 | ||
1267 | while (td->nr_verify_threads) | |
1268 | pthread_cond_wait(&td->free_cond, &td->io_u_lock); | |
1269 | ||
1270 | pthread_mutex_unlock(&td->io_u_lock); | |
1271 | free(td->verify_threads); | |
1272 | td->verify_threads = NULL; | |
1273 | } | |
ca09be4b JA |
1274 | |
1275 | struct all_io_list *get_all_io_list(int save_mask, size_t *sz) | |
1276 | { | |
1277 | struct all_io_list *rep; | |
1278 | struct thread_data *td; | |
1279 | size_t depth; | |
1280 | void *next; | |
1281 | int i, nr; | |
1282 | ||
1283 | compiletime_assert(sizeof(struct all_io_list) == 8, "all_io_list"); | |
1284 | ||
1285 | /* | |
1286 | * Calculate reply space needed. We need one 'io_state' per thread, | |
1287 | * and the size will vary depending on depth. | |
1288 | */ | |
1289 | depth = 0; | |
1290 | nr = 0; | |
1291 | for_each_td(td, i) { | |
1292 | if (save_mask != IO_LIST_ALL && (i + 1) != save_mask) | |
1293 | continue; | |
1294 | td->stop_io = 1; | |
1295 | td->flags |= TD_F_VSTATE_SAVED; | |
1296 | depth += td->o.iodepth; | |
1297 | nr++; | |
1298 | } | |
1299 | ||
1300 | if (!nr) | |
1301 | return NULL; | |
1302 | ||
1303 | *sz = sizeof(*rep); | |
1304 | *sz += nr * sizeof(struct thread_io_list); | |
1305 | *sz += depth * sizeof(uint64_t); | |
1306 | rep = malloc(*sz); | |
1307 | ||
1308 | rep->threads = cpu_to_le64((uint64_t) nr); | |
1309 | ||
1310 | next = &rep->state[0]; | |
1311 | for_each_td(td, i) { | |
1312 | struct thread_io_list *s = next; | |
1313 | unsigned int comps; | |
1314 | ||
1315 | if (save_mask != IO_LIST_ALL && (i + 1) != save_mask) | |
1316 | continue; | |
1317 | ||
1318 | if (td->last_write_comp) { | |
1319 | int j, k; | |
1320 | ||
1321 | if (td->io_blocks[DDIR_WRITE] < td->o.iodepth) | |
1322 | comps = td->io_blocks[DDIR_WRITE]; | |
1323 | else | |
1324 | comps = td->o.iodepth; | |
1325 | ||
1326 | k = td->last_write_idx - 1; | |
1327 | for (j = 0; j < comps; j++) { | |
1328 | if (k == -1) | |
1329 | k = td->o.iodepth - 1; | |
1330 | s->offsets[j] = cpu_to_le64(td->last_write_comp[k]); | |
1331 | k--; | |
1332 | } | |
1333 | } else | |
1334 | comps = 0; | |
1335 | ||
1336 | s->no_comps = cpu_to_le64((uint64_t) comps); | |
1337 | s->depth = cpu_to_le64((uint64_t) td->o.iodepth); | |
1338 | s->numberio = cpu_to_le64((uint64_t) td->io_issues[DDIR_WRITE]); | |
1339 | s->index = cpu_to_le64((uint64_t) i); | |
1340 | s->rand.s[0] = cpu_to_le32(td->random_state.s1); | |
1341 | s->rand.s[1] = cpu_to_le32(td->random_state.s2); | |
1342 | s->rand.s[2] = cpu_to_le32(td->random_state.s3); | |
1343 | s->rand.s[3] = 0; | |
1dc06a8f JA |
1344 | s->name[sizeof(s->name) - 1] = '\0'; |
1345 | strncpy((char *) s->name, td->o.name, sizeof(s->name) - 1); | |
ca09be4b JA |
1346 | next = io_list_next(s); |
1347 | } | |
1348 | ||
1349 | return rep; | |
1350 | } | |
1351 | ||
1352 | static int open_state_file(const char *name, const char *prefix, int num, | |
1353 | int for_write) | |
1354 | { | |
1355 | char out[64]; | |
1356 | int flags; | |
1357 | int fd; | |
1358 | ||
1359 | if (for_write) | |
1360 | flags = O_CREAT | O_TRUNC | O_WRONLY | O_SYNC; | |
1361 | else | |
1362 | flags = O_RDONLY; | |
1363 | ||
e499aedc | 1364 | verify_state_gen_name(out, sizeof(out), name, prefix, num); |
ca09be4b JA |
1365 | |
1366 | fd = open(out, flags, 0644); | |
1367 | if (fd == -1) { | |
1368 | perror("fio: open state file"); | |
1369 | return -1; | |
1370 | } | |
1371 | ||
1372 | return fd; | |
1373 | } | |
1374 | ||
1375 | static int write_thread_list_state(struct thread_io_list *s, | |
1376 | const char *prefix) | |
1377 | { | |
1378 | struct verify_state_hdr hdr; | |
1379 | uint64_t crc; | |
1380 | ssize_t ret; | |
1381 | int fd; | |
1382 | ||
1383 | fd = open_state_file((const char *) s->name, prefix, s->index, 1); | |
1384 | if (fd == -1) | |
1385 | return 1; | |
1386 | ||
1387 | crc = fio_crc32c((void *)s, thread_io_list_sz(s)); | |
1388 | ||
1389 | hdr.version = cpu_to_le64((uint64_t) VSTATE_HDR_VERSION); | |
1390 | hdr.size = cpu_to_le64((uint64_t) thread_io_list_sz(s)); | |
1391 | hdr.crc = cpu_to_le64(crc); | |
1392 | ret = write(fd, &hdr, sizeof(hdr)); | |
1393 | if (ret != sizeof(hdr)) | |
1394 | goto write_fail; | |
1395 | ||
1396 | ret = write(fd, s, thread_io_list_sz(s)); | |
1397 | if (ret != thread_io_list_sz(s)) { | |
1398 | write_fail: | |
1399 | if (ret < 0) | |
1400 | perror("fio: write state file"); | |
1401 | log_err("fio: failed to write state file\n"); | |
1402 | ret = 1; | |
1403 | } else | |
1404 | ret = 0; | |
1405 | ||
1406 | close(fd); | |
1407 | return ret; | |
1408 | } | |
1409 | ||
1410 | void __verify_save_state(struct all_io_list *state, const char *prefix) | |
1411 | { | |
1412 | struct thread_io_list *s = &state->state[0]; | |
1413 | unsigned int i; | |
1414 | ||
1415 | for (i = 0; i < le64_to_cpu(state->threads); i++) { | |
1416 | write_thread_list_state(s, prefix); | |
1417 | s = io_list_next(s); | |
1418 | } | |
1419 | } | |
1420 | ||
1421 | void verify_save_state(void) | |
1422 | { | |
1423 | struct all_io_list *state; | |
1424 | size_t sz; | |
1425 | ||
1426 | state = get_all_io_list(IO_LIST_ALL, &sz); | |
1427 | if (state) { | |
1428 | __verify_save_state(state, "local"); | |
1429 | free(state); | |
1430 | } | |
1431 | } | |
1432 | ||
1433 | void verify_free_state(struct thread_data *td) | |
1434 | { | |
1435 | if (td->vstate) | |
1436 | free(td->vstate); | |
1437 | } | |
1438 | ||
1439 | void verify_convert_assign_state(struct thread_data *td, | |
1440 | struct thread_io_list *s) | |
1441 | { | |
1442 | int i; | |
1443 | ||
1444 | s->no_comps = le64_to_cpu(s->no_comps); | |
1445 | s->depth = le64_to_cpu(s->depth); | |
1446 | s->numberio = le64_to_cpu(s->numberio); | |
1447 | for (i = 0; i < 4; i++) | |
1448 | s->rand.s[i] = le32_to_cpu(s->rand.s[i]); | |
1449 | for (i = 0; i < s->no_comps; i++) | |
1450 | s->offsets[i] = le64_to_cpu(s->offsets[i]); | |
1451 | ||
1452 | td->vstate = s; | |
1453 | } | |
1454 | ||
1455 | int verify_state_hdr(struct verify_state_hdr *hdr, struct thread_io_list *s) | |
1456 | { | |
1457 | uint64_t crc; | |
1458 | ||
1459 | hdr->version = le64_to_cpu(hdr->version); | |
1460 | hdr->size = le64_to_cpu(hdr->size); | |
1461 | hdr->crc = le64_to_cpu(hdr->crc); | |
1462 | ||
1463 | if (hdr->version != VSTATE_HDR_VERSION) | |
1464 | return 1; | |
1465 | ||
1466 | crc = fio_crc32c((void *)s, hdr->size); | |
1467 | if (crc != hdr->crc) | |
1468 | return 1; | |
1469 | ||
1470 | return 0; | |
1471 | } | |
1472 | ||
1473 | int verify_load_state(struct thread_data *td, const char *prefix) | |
1474 | { | |
1475 | struct thread_io_list *s = NULL; | |
1476 | struct verify_state_hdr hdr; | |
1477 | uint64_t crc; | |
1478 | ssize_t ret; | |
1479 | int fd; | |
1480 | ||
1481 | if (!td->o.verify_state) | |
1482 | return 0; | |
1483 | ||
1484 | fd = open_state_file(td->o.name, prefix, td->thread_number - 1, 0); | |
1485 | if (fd == -1) | |
1486 | return 1; | |
1487 | ||
1488 | ret = read(fd, &hdr, sizeof(hdr)); | |
1489 | if (ret != sizeof(hdr)) { | |
1490 | if (ret < 0) | |
1491 | td_verror(td, errno, "read verify state hdr"); | |
1492 | log_err("fio: failed reading verify state header\n"); | |
1493 | goto err; | |
1494 | } | |
1495 | ||
1496 | hdr.version = le64_to_cpu(hdr.version); | |
1497 | hdr.size = le64_to_cpu(hdr.size); | |
1498 | hdr.crc = le64_to_cpu(hdr.crc); | |
1499 | ||
1500 | if (hdr.version != VSTATE_HDR_VERSION) { | |
1501 | log_err("fio: bad version in verify state header\n"); | |
1502 | goto err; | |
1503 | } | |
1504 | ||
1505 | s = malloc(hdr.size); | |
1506 | ret = read(fd, s, hdr.size); | |
1507 | if (ret != hdr.size) { | |
1508 | if (ret < 0) | |
1509 | td_verror(td, errno, "read verify state"); | |
1510 | log_err("fio: failed reading verity state\n"); | |
1511 | goto err; | |
1512 | } | |
1513 | ||
1514 | crc = fio_crc32c((void *)s, hdr.size); | |
1515 | if (crc != hdr.crc) { | |
1516 | log_err("fio: verify state is corrupt\n"); | |
1517 | goto err; | |
1518 | } | |
1519 | ||
1520 | close(fd); | |
1521 | ||
1522 | verify_convert_assign_state(td, s); | |
1523 | return 0; | |
1524 | err: | |
1525 | if (s) | |
1526 | free(s); | |
1527 | close(fd); | |
1528 | return 1; | |
1529 | } | |
1530 | ||
1531 | /* | |
1532 | * Use the loaded verify state to know when to stop doing verification | |
1533 | */ | |
1534 | int verify_state_should_stop(struct thread_data *td, struct io_u *io_u) | |
1535 | { | |
1536 | struct thread_io_list *s = td->vstate; | |
1537 | int i; | |
1538 | ||
1539 | if (!s) | |
1540 | return 0; | |
1541 | ||
1542 | /* | |
1543 | * If we're not into the window of issues - depth yet, continue | |
1544 | */ | |
1545 | if (td->io_blocks[DDIR_READ] < s->depth || | |
1546 | s->numberio - td->io_blocks[DDIR_READ] > s->depth) | |
1547 | return 0; | |
1548 | ||
1549 | /* | |
1550 | * We're in the window of having to check if this io was | |
1551 | * completed or not. If the IO was seen as completed, then | |
1552 | * lets verify it. | |
1553 | */ | |
1554 | for (i = 0; i < s->no_comps; i++) | |
1555 | if (io_u->offset == s->offsets[i]) | |
1556 | return 0; | |
1557 | ||
1558 | /* | |
1559 | * Not found, we have to stop | |
1560 | */ | |
1561 | return 1; | |
1562 | } |