Commit | Line | Data |
---|---|---|
2866c82d | 1 | /* |
da751ca9 JA |
2 | * sg engine |
3 | * | |
4 | * IO engine that uses the Linux SG v3 interface to talk to SCSI devices | |
2866c82d | 5 | * |
b4b9665e VF |
6 | * This ioengine can operate in two modes: |
7 | * sync with block devices (/dev/sdX) or | |
8 | * with character devices (/dev/sgY) with direct=1 or sync=1 | |
9 | * async with character devices with direct=0 and sync=0 | |
10 | * | |
11 | * What value does queue() return for the different cases? | |
12 | * queue() return value | |
13 | * In sync mode: | |
14 | * /dev/sdX RWT FIO_Q_COMPLETED | |
15 | * /dev/sgY RWT FIO_Q_COMPLETED | |
16 | * with direct=1 or sync=1 | |
17 | * | |
18 | * In async mode: | |
19 | * /dev/sgY RWT FIO_Q_QUEUED | |
20 | * direct=0 and sync=0 | |
21 | * | |
22 | * Because FIO_SYNCIO is set for this ioengine td_io_queue() will fill in | |
23 | * issue_time *before* each IO is sent to queue() | |
24 | * | |
25 | * Where are the IO counting functions called for the different cases? | |
26 | * | |
27 | * In sync mode: | |
28 | * /dev/sdX (commit==NULL) | |
29 | * RWT | |
30 | * io_u_mark_depth() called in td_io_queue() | |
31 | * io_u_mark_submit/complete() called in td_io_queue() | |
32 | * issue_time set in td_io_queue() | |
33 | * | |
34 | * /dev/sgY with direct=1 or sync=1 (commit does nothing) | |
35 | * RWT | |
36 | * io_u_mark_depth() called in td_io_queue() | |
37 | * io_u_mark_submit/complete() called in queue() | |
38 | * issue_time set in td_io_queue() | |
39 | * | |
40 | * In async mode: | |
41 | * /dev/sgY with direct=0 and sync=0 | |
42 | * RW: read and write operations are submitted in queue() | |
43 | * io_u_mark_depth() called in td_io_commit() | |
44 | * io_u_mark_submit() called in queue() | |
45 | * issue_time set in td_io_queue() | |
46 | * T: trim operations are queued in queue() and submitted in commit() | |
47 | * io_u_mark_depth() called in td_io_commit() | |
48 | * io_u_mark_submit() called in commit() | |
49 | * issue_time set in commit() | |
50 | * | |
2866c82d JA |
51 | */ |
52 | #include <stdio.h> | |
53 | #include <stdlib.h> | |
54 | #include <unistd.h> | |
55 | #include <errno.h> | |
8393ca93 | 56 | #include <poll.h> |
5f350952 JA |
57 | |
58 | #include "../fio.h" | |
52b81b7c | 59 | #include "../optgroup.h" |
2866c82d | 60 | |
34cfcdaf JA |
61 | #ifdef FIO_HAVE_SGIO |
62 | ||
cbdc9353 VF |
63 | enum { |
64 | FIO_SG_WRITE = 1, | |
65 | FIO_SG_WRITE_VERIFY = 2, | |
66 | FIO_SG_WRITE_SAME = 3 | |
67 | }; | |
52b81b7c KD |
68 | |
69 | struct sg_options { | |
70 | void *pad; | |
71 | unsigned int readfua; | |
72 | unsigned int writefua; | |
cbdc9353 | 73 | unsigned int write_mode; |
52b81b7c KD |
74 | }; |
75 | ||
76 | static struct fio_option options[] = { | |
77 | { | |
78 | .name = "readfua", | |
79 | .lname = "sg engine read fua flag support", | |
80 | .type = FIO_OPT_BOOL, | |
81 | .off1 = offsetof(struct sg_options, readfua), | |
82 | .help = "Set FUA flag (force unit access) for all Read operations", | |
83 | .def = "0", | |
84 | .category = FIO_OPT_C_ENGINE, | |
85 | .group = FIO_OPT_G_SG, | |
86 | }, | |
87 | { | |
88 | .name = "writefua", | |
89 | .lname = "sg engine write fua flag support", | |
90 | .type = FIO_OPT_BOOL, | |
91 | .off1 = offsetof(struct sg_options, writefua), | |
92 | .help = "Set FUA flag (force unit access) for all Write operations", | |
93 | .def = "0", | |
94 | .category = FIO_OPT_C_ENGINE, | |
95 | .group = FIO_OPT_G_SG, | |
96 | }, | |
cbdc9353 VF |
97 | { |
98 | .name = "sg_write_mode", | |
99 | .lname = "specify sg write mode", | |
100 | .type = FIO_OPT_STR, | |
101 | .off1 = offsetof(struct sg_options, write_mode), | |
102 | .help = "Specify SCSI WRITE mode", | |
103 | .def = "write", | |
104 | .posval = { | |
105 | { .ival = "write", | |
106 | .oval = FIO_SG_WRITE, | |
107 | .help = "Issue standard SCSI WRITE commands", | |
108 | }, | |
109 | { .ival = "verify", | |
110 | .oval = FIO_SG_WRITE_VERIFY, | |
111 | .help = "Issue SCSI WRITE AND VERIFY commands", | |
112 | }, | |
113 | { .ival = "same", | |
114 | .oval = FIO_SG_WRITE_SAME, | |
115 | .help = "Issue SCSI WRITE SAME commands", | |
116 | }, | |
117 | }, | |
118 | .category = FIO_OPT_C_ENGINE, | |
119 | .group = FIO_OPT_G_SG, | |
120 | }, | |
52b81b7c KD |
121 | { |
122 | .name = NULL, | |
123 | }, | |
124 | }; | |
125 | ||
5ad7be56 KD |
126 | #define MAX_10B_LBA 0xFFFFFFFFULL |
127 | #define SCSI_TIMEOUT_MS 30000 // 30 second timeout; currently no method to override | |
128 | #define MAX_SB 64 // sense block maximum return size | |
129 | ||
2866c82d | 130 | struct sgio_cmd { |
fde57152 | 131 | unsigned char cdb[16]; // enhanced from 10 to support 16 byte commands |
5ad7be56 | 132 | unsigned char sb[MAX_SB]; // add sense block to commands |
2866c82d JA |
133 | int nr; |
134 | }; | |
135 | ||
b4b9665e VF |
136 | struct sgio_trim { |
137 | char *unmap_param; | |
138 | unsigned int unmap_range_count; | |
139 | struct io_u **trim_io_us; | |
140 | }; | |
141 | ||
2866c82d JA |
142 | struct sgio_data { |
143 | struct sgio_cmd *cmds; | |
144 | struct io_u **events; | |
dc0deca2 JA |
145 | struct pollfd *pfds; |
146 | int *fd_flags; | |
147 | void *sgbuf; | |
2866c82d | 148 | unsigned int bs; |
b5af8293 | 149 | int type_checked; |
b4b9665e VF |
150 | struct sgio_trim **trim_queues; |
151 | int current_queue; | |
152 | unsigned int *trim_queue_map; | |
2866c82d JA |
153 | }; |
154 | ||
b4b9665e VF |
155 | static inline bool sgio_unbuffered(struct thread_data *td) |
156 | { | |
157 | return (td->o.odirect || td->o.sync_io); | |
158 | } | |
159 | ||
2866c82d JA |
160 | static void sgio_hdr_init(struct sgio_data *sd, struct sg_io_hdr *hdr, |
161 | struct io_u *io_u, int fs) | |
162 | { | |
163 | struct sgio_cmd *sc = &sd->cmds[io_u->index]; | |
164 | ||
165 | memset(hdr, 0, sizeof(*hdr)); | |
166 | memset(sc->cdb, 0, sizeof(sc->cdb)); | |
167 | ||
168 | hdr->interface_id = 'S'; | |
169 | hdr->cmdp = sc->cdb; | |
170 | hdr->cmd_len = sizeof(sc->cdb); | |
5ad7be56 KD |
171 | hdr->sbp = sc->sb; |
172 | hdr->mx_sb_len = sizeof(sc->sb); | |
2866c82d JA |
173 | hdr->pack_id = io_u->index; |
174 | hdr->usr_ptr = io_u; | |
b4b9665e | 175 | hdr->timeout = SCSI_TIMEOUT_MS; |
2866c82d JA |
176 | |
177 | if (fs) { | |
cec6b55d JA |
178 | hdr->dxferp = io_u->xfer_buf; |
179 | hdr->dxfer_len = io_u->xfer_buflen; | |
2866c82d JA |
180 | } |
181 | } | |
182 | ||
adee86c5 JA |
183 | static int pollin_events(struct pollfd *pfds, int fds) |
184 | { | |
185 | int i; | |
186 | ||
187 | for (i = 0; i < fds; i++) | |
188 | if (pfds[i].revents & POLLIN) | |
189 | return 1; | |
190 | ||
191 | return 0; | |
192 | } | |
2866c82d | 193 | |
14d0261e JA |
194 | static int sg_fd_read(int fd, void *data, size_t size) |
195 | { | |
196 | int err = 0; | |
197 | ||
198 | while (size) { | |
199 | ssize_t ret; | |
200 | ||
201 | ret = read(fd, data, size); | |
202 | if (ret < 0) { | |
203 | if (errno == EAGAIN || errno == EINTR) | |
204 | continue; | |
205 | err = errno; | |
206 | break; | |
207 | } else if (!ret) | |
208 | break; | |
209 | else { | |
210 | data += ret; | |
211 | size -= ret; | |
212 | } | |
213 | } | |
214 | ||
215 | if (err) | |
216 | return err; | |
217 | if (size) | |
218 | return EAGAIN; | |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
e7d2e616 | 223 | static int fio_sgio_getevents(struct thread_data *td, unsigned int min, |
1f440ece JA |
224 | unsigned int max, |
225 | const struct timespec fio_unused *t) | |
2866c82d | 226 | { |
565e784d | 227 | struct sgio_data *sd = td->io_ops_data; |
b4b9665e | 228 | int left = max, eventNum, ret, r = 0, trims = 0; |
dc0deca2 | 229 | void *buf = sd->sgbuf; |
b4b9665e | 230 | unsigned int i, j, events; |
946ff865 | 231 | struct fio_file *f; |
b4b9665e | 232 | struct io_u *io_u; |
2866c82d JA |
233 | |
234 | /* | |
adee86c5 | 235 | * Fill in the file descriptors |
2866c82d | 236 | */ |
adee86c5 JA |
237 | for_each_file(td, f, i) { |
238 | /* | |
239 | * don't block for min events == 0 | |
240 | */ | |
4a851614 | 241 | if (!min) |
3a35845f JA |
242 | sd->fd_flags[i] = fio_set_fd_nonblocking(f->fd, "sg"); |
243 | else | |
244 | sd->fd_flags[i] = -1; | |
4a851614 | 245 | |
dc0deca2 JA |
246 | sd->pfds[i].fd = f->fd; |
247 | sd->pfds[i].events = POLLIN; | |
2866c82d JA |
248 | } |
249 | ||
b4b9665e VF |
250 | /* |
251 | ** There are two counters here: | |
252 | ** - number of SCSI commands completed | |
253 | ** - number of io_us completed | |
254 | ** | |
255 | ** These are the same with reads and writes, but | |
256 | ** could differ with trim/unmap commands because | |
257 | ** a single unmap can include multiple io_us | |
258 | */ | |
259 | ||
260 | while (left > 0) { | |
c97e3cb0 | 261 | char *p; |
adee86c5 | 262 | |
b4b9665e | 263 | dprint(FD_IO, "sgio_getevents: sd %p: min=%d, max=%d, left=%d\n", sd, min, max, left); |
5ad7be56 | 264 | |
2866c82d JA |
265 | do { |
266 | if (!min) | |
267 | break; | |
adee86c5 | 268 | |
2dc1bbeb | 269 | ret = poll(sd->pfds, td->o.nr_files, -1); |
adee86c5 | 270 | if (ret < 0) { |
adee86c5 | 271 | if (!r) |
22819ec2 | 272 | r = -errno; |
e1161c32 | 273 | td_verror(td, errno, "poll"); |
adee86c5 JA |
274 | break; |
275 | } else if (!ret) | |
276 | continue; | |
277 | ||
2dc1bbeb | 278 | if (pollin_events(sd->pfds, td->o.nr_files)) |
2866c82d JA |
279 | break; |
280 | } while (1); | |
281 | ||
adee86c5 | 282 | if (r < 0) |
2866c82d | 283 | break; |
adee86c5 JA |
284 | |
285 | re_read: | |
286 | p = buf; | |
287 | events = 0; | |
288 | for_each_file(td, f, i) { | |
5ad7be56 | 289 | for (eventNum = 0; eventNum < left; eventNum++) { |
14d0261e | 290 | ret = sg_fd_read(f->fd, p, sizeof(struct sg_io_hdr)); |
b4b9665e | 291 | dprint(FD_IO, "sgio_getevents: sg_fd_read ret: %d\n", ret); |
14d0261e JA |
292 | if (ret) { |
293 | r = -ret; | |
294 | td_verror(td, r, "sg_read"); | |
5ad7be56 | 295 | break; |
5ad7be56 | 296 | } |
b4b9665e VF |
297 | io_u = ((struct sg_io_hdr *)p)->usr_ptr; |
298 | if (io_u->ddir == DDIR_TRIM) { | |
299 | events += sd->trim_queues[io_u->index]->unmap_range_count; | |
300 | eventNum += sd->trim_queues[io_u->index]->unmap_range_count - 1; | |
301 | } else | |
302 | events++; | |
303 | ||
14d0261e | 304 | p += sizeof(struct sg_io_hdr); |
b4b9665e | 305 | dprint(FD_IO, "sgio_getevents: events: %d, eventNum: %d, left: %d\n", events, eventNum, left); |
adee86c5 JA |
306 | } |
307 | } | |
308 | ||
14d0261e | 309 | if (r < 0 && !events) |
2866c82d | 310 | break; |
adee86c5 JA |
311 | if (!events) { |
312 | usleep(1000); | |
313 | goto re_read; | |
314 | } | |
2866c82d | 315 | |
2866c82d JA |
316 | left -= events; |
317 | r += events; | |
318 | ||
319 | for (i = 0; i < events; i++) { | |
320 | struct sg_io_hdr *hdr = (struct sg_io_hdr *) buf + i; | |
b4b9665e VF |
321 | sd->events[i + trims] = hdr->usr_ptr; |
322 | io_u = (struct io_u *)(hdr->usr_ptr); | |
5ad7be56 | 323 | |
5ad7be56 | 324 | if (hdr->info & SG_INFO_CHECK) { |
b4b9665e | 325 | /* record if an io error occurred, ignore resid */ |
be660713 | 326 | memcpy(&io_u->hdr, hdr, sizeof(struct sg_io_hdr)); |
b4b9665e VF |
327 | sd->events[i + trims]->error = EIO; |
328 | } | |
329 | ||
330 | if (io_u->ddir == DDIR_TRIM) { | |
331 | struct sgio_trim *st = sd->trim_queues[io_u->index]; | |
332 | assert(st->trim_io_us[0] == io_u); | |
333 | dprint(FD_IO, "sgio_getevents: reaping %d io_us from trim queue %d\n", st->unmap_range_count, io_u->index); | |
334 | dprint(FD_IO, "sgio_getevents: reaped io_u %d and stored in events[%d]\n", io_u->index, i+trims); | |
335 | for (j = 1; j < st->unmap_range_count; j++) { | |
336 | ++trims; | |
337 | sd->events[i + trims] = st->trim_io_us[j]; | |
338 | dprint(FD_IO, "sgio_getevents: reaped io_u %d and stored in events[%d]\n", st->trim_io_us[j]->index, i+trims); | |
339 | if (hdr->info & SG_INFO_CHECK) { | |
340 | /* record if an io error occurred, ignore resid */ | |
341 | memcpy(&st->trim_io_us[j]->hdr, hdr, sizeof(struct sg_io_hdr)); | |
342 | sd->events[i + trims]->error = EIO; | |
343 | } | |
344 | } | |
345 | events -= st->unmap_range_count - 1; | |
346 | st->unmap_range_count = 0; | |
5ad7be56 | 347 | } |
2866c82d JA |
348 | } |
349 | } | |
350 | ||
adee86c5 | 351 | if (!min) { |
affe05a9 | 352 | for_each_file(td, f, i) { |
3a35845f JA |
353 | if (sd->fd_flags[i] == -1) |
354 | continue; | |
355 | ||
affe05a9 JA |
356 | if (fcntl(f->fd, F_SETFL, sd->fd_flags[i]) < 0) |
357 | log_err("fio: sg failed to restore fcntl flags: %s\n", strerror(errno)); | |
358 | } | |
adee86c5 | 359 | } |
2866c82d | 360 | |
2866c82d JA |
361 | return r; |
362 | } | |
363 | ||
2e4ef4fb JA |
364 | static enum fio_q_status fio_sgio_ioctl_doio(struct thread_data *td, |
365 | struct fio_file *f, | |
366 | struct io_u *io_u) | |
2866c82d | 367 | { |
565e784d | 368 | struct sgio_data *sd = td->io_ops_data; |
2866c82d | 369 | struct sg_io_hdr *hdr = &io_u->hdr; |
36167d82 | 370 | int ret; |
2866c82d JA |
371 | |
372 | sd->events[0] = io_u; | |
373 | ||
36167d82 JA |
374 | ret = ioctl(f->fd, SG_IO, hdr); |
375 | if (ret < 0) | |
a05bd42d | 376 | return ret; |
36167d82 | 377 | |
5ad7be56 KD |
378 | /* record if an io error occurred */ |
379 | if (hdr->info & SG_INFO_CHECK) | |
380 | io_u->error = EIO; | |
381 | ||
36167d82 | 382 | return FIO_Q_COMPLETED; |
2866c82d JA |
383 | } |
384 | ||
b4b9665e VF |
385 | static enum fio_q_status fio_sgio_rw_doio(struct fio_file *f, |
386 | struct io_u *io_u, int do_sync) | |
2866c82d JA |
387 | { |
388 | struct sg_io_hdr *hdr = &io_u->hdr; | |
389 | int ret; | |
390 | ||
53cdc686 | 391 | ret = write(f->fd, hdr, sizeof(*hdr)); |
2866c82d | 392 | if (ret < 0) |
a05bd42d | 393 | return ret; |
2866c82d | 394 | |
2b13e716 | 395 | if (do_sync) { |
53cdc686 | 396 | ret = read(f->fd, hdr, sizeof(*hdr)); |
2866c82d | 397 | if (ret < 0) |
a05bd42d | 398 | return ret; |
5ad7be56 KD |
399 | |
400 | /* record if an io error occurred */ | |
401 | if (hdr->info & SG_INFO_CHECK) | |
402 | io_u->error = EIO; | |
403 | ||
36167d82 | 404 | return FIO_Q_COMPLETED; |
2866c82d JA |
405 | } |
406 | ||
36167d82 | 407 | return FIO_Q_QUEUED; |
2866c82d JA |
408 | } |
409 | ||
b4b9665e VF |
410 | static enum fio_q_status fio_sgio_doio(struct thread_data *td, |
411 | struct io_u *io_u, int do_sync) | |
2866c82d | 412 | { |
53cdc686 | 413 | struct fio_file *f = io_u->file; |
b4b9665e | 414 | enum fio_q_status ret; |
53cdc686 | 415 | |
686fbd31 | 416 | if (f->filetype == FIO_TYPE_BLOCK) { |
5ad7be56 | 417 | ret = fio_sgio_ioctl_doio(td, f, io_u); |
c9aeb797 | 418 | td_verror(td, io_u->error, __func__); |
5ad7be56 KD |
419 | } else { |
420 | ret = fio_sgio_rw_doio(f, io_u, do_sync); | |
421 | if (do_sync) | |
c9aeb797 | 422 | td_verror(td, io_u->error, __func__); |
5ad7be56 | 423 | } |
2866c82d | 424 | |
5ad7be56 | 425 | return ret; |
2866c82d JA |
426 | } |
427 | ||
b4b9665e VF |
428 | static void fio_sgio_rw_lba(struct sg_io_hdr *hdr, unsigned long long lba, |
429 | unsigned long long nr_blocks) | |
430 | { | |
431 | if (lba < MAX_10B_LBA) { | |
432 | hdr->cmdp[2] = (unsigned char) ((lba >> 24) & 0xff); | |
433 | hdr->cmdp[3] = (unsigned char) ((lba >> 16) & 0xff); | |
434 | hdr->cmdp[4] = (unsigned char) ((lba >> 8) & 0xff); | |
435 | hdr->cmdp[5] = (unsigned char) (lba & 0xff); | |
436 | hdr->cmdp[7] = (unsigned char) ((nr_blocks >> 8) & 0xff); | |
437 | hdr->cmdp[8] = (unsigned char) (nr_blocks & 0xff); | |
438 | } else { | |
439 | hdr->cmdp[2] = (unsigned char) ((lba >> 56) & 0xff); | |
440 | hdr->cmdp[3] = (unsigned char) ((lba >> 48) & 0xff); | |
441 | hdr->cmdp[4] = (unsigned char) ((lba >> 40) & 0xff); | |
442 | hdr->cmdp[5] = (unsigned char) ((lba >> 32) & 0xff); | |
443 | hdr->cmdp[6] = (unsigned char) ((lba >> 24) & 0xff); | |
444 | hdr->cmdp[7] = (unsigned char) ((lba >> 16) & 0xff); | |
445 | hdr->cmdp[8] = (unsigned char) ((lba >> 8) & 0xff); | |
446 | hdr->cmdp[9] = (unsigned char) (lba & 0xff); | |
447 | hdr->cmdp[10] = (unsigned char) ((nr_blocks >> 32) & 0xff); | |
448 | hdr->cmdp[11] = (unsigned char) ((nr_blocks >> 16) & 0xff); | |
449 | hdr->cmdp[12] = (unsigned char) ((nr_blocks >> 8) & 0xff); | |
450 | hdr->cmdp[13] = (unsigned char) (nr_blocks & 0xff); | |
451 | } | |
452 | ||
453 | return; | |
454 | } | |
455 | ||
2866c82d JA |
456 | static int fio_sgio_prep(struct thread_data *td, struct io_u *io_u) |
457 | { | |
458 | struct sg_io_hdr *hdr = &io_u->hdr; | |
52b81b7c | 459 | struct sg_options *o = td->eo; |
565e784d | 460 | struct sgio_data *sd = td->io_ops_data; |
b4b9665e VF |
461 | unsigned long long nr_blocks, lba; |
462 | int offset; | |
2866c82d | 463 | |
cec6b55d | 464 | if (io_u->xfer_buflen & (sd->bs - 1)) { |
2866c82d JA |
465 | log_err("read/write not sector aligned\n"); |
466 | return EINVAL; | |
467 | } | |
468 | ||
5ad7be56 KD |
469 | nr_blocks = io_u->xfer_buflen / sd->bs; |
470 | lba = io_u->offset / sd->bs; | |
471 | ||
2866c82d | 472 | if (io_u->ddir == DDIR_READ) { |
87dc1ab1 JA |
473 | sgio_hdr_init(sd, hdr, io_u, 1); |
474 | ||
2866c82d | 475 | hdr->dxfer_direction = SG_DXFER_FROM_DEV; |
5ad7be56 KD |
476 | if (lba < MAX_10B_LBA) |
477 | hdr->cmdp[0] = 0x28; // read(10) | |
478 | else | |
479 | hdr->cmdp[0] = 0x88; // read(16) | |
52b81b7c KD |
480 | |
481 | if (o->readfua) | |
482 | hdr->cmdp[1] |= 0x08; | |
483 | ||
b4b9665e VF |
484 | fio_sgio_rw_lba(hdr, lba, nr_blocks); |
485 | ||
87dc1ab1 JA |
486 | } else if (io_u->ddir == DDIR_WRITE) { |
487 | sgio_hdr_init(sd, hdr, io_u, 1); | |
488 | ||
2866c82d | 489 | hdr->dxfer_direction = SG_DXFER_TO_DEV; |
cbdc9353 VF |
490 | switch(o->write_mode) { |
491 | case FIO_SG_WRITE: | |
492 | if (lba < MAX_10B_LBA) | |
493 | hdr->cmdp[0] = 0x2a; // write(10) | |
494 | else | |
495 | hdr->cmdp[0] = 0x8a; // write(16) | |
496 | if (o->writefua) | |
497 | hdr->cmdp[1] |= 0x08; | |
498 | break; | |
499 | case FIO_SG_WRITE_VERIFY: | |
500 | if (lba < MAX_10B_LBA) | |
501 | hdr->cmdp[0] = 0x2e; // write and verify(10) | |
502 | else | |
503 | hdr->cmdp[0] = 0x8e; // write and verify(16) | |
504 | break; | |
505 | // BYTCHK is disabled by virtue of the memset in sgio_hdr_init | |
506 | case FIO_SG_WRITE_SAME: | |
507 | hdr->dxfer_len = sd->bs; | |
508 | if (lba < MAX_10B_LBA) | |
509 | hdr->cmdp[0] = 0x41; // write same(10) | |
510 | else | |
511 | hdr->cmdp[0] = 0x93; // write same(16) | |
512 | break; | |
513 | }; | |
b4b9665e VF |
514 | |
515 | fio_sgio_rw_lba(hdr, lba, nr_blocks); | |
516 | ||
517 | } else if (io_u->ddir == DDIR_TRIM) { | |
518 | struct sgio_trim *st; | |
519 | ||
520 | if (sd->current_queue == -1) { | |
521 | sgio_hdr_init(sd, hdr, io_u, 0); | |
522 | ||
523 | hdr->cmd_len = 10; | |
524 | hdr->dxfer_direction = SG_DXFER_TO_DEV; | |
525 | hdr->cmdp[0] = 0x42; // unmap | |
526 | sd->current_queue = io_u->index; | |
527 | st = sd->trim_queues[sd->current_queue]; | |
528 | hdr->dxferp = st->unmap_param; | |
529 | assert(sd->trim_queues[io_u->index]->unmap_range_count == 0); | |
530 | dprint(FD_IO, "sg: creating new queue based on io_u %d\n", io_u->index); | |
531 | } | |
532 | else | |
533 | st = sd->trim_queues[sd->current_queue]; | |
534 | ||
535 | dprint(FD_IO, "sg: adding io_u %d to trim queue %d\n", io_u->index, sd->current_queue); | |
536 | st->trim_io_us[st->unmap_range_count] = io_u; | |
537 | sd->trim_queue_map[io_u->index] = sd->current_queue; | |
538 | ||
539 | offset = 8 + 16 * st->unmap_range_count; | |
540 | st->unmap_param[offset] = (unsigned char) ((lba >> 56) & 0xff); | |
541 | st->unmap_param[offset+1] = (unsigned char) ((lba >> 48) & 0xff); | |
542 | st->unmap_param[offset+2] = (unsigned char) ((lba >> 40) & 0xff); | |
543 | st->unmap_param[offset+3] = (unsigned char) ((lba >> 32) & 0xff); | |
544 | st->unmap_param[offset+4] = (unsigned char) ((lba >> 24) & 0xff); | |
545 | st->unmap_param[offset+5] = (unsigned char) ((lba >> 16) & 0xff); | |
546 | st->unmap_param[offset+6] = (unsigned char) ((lba >> 8) & 0xff); | |
547 | st->unmap_param[offset+7] = (unsigned char) (lba & 0xff); | |
548 | st->unmap_param[offset+8] = (unsigned char) ((nr_blocks >> 32) & 0xff); | |
549 | st->unmap_param[offset+9] = (unsigned char) ((nr_blocks >> 16) & 0xff); | |
550 | st->unmap_param[offset+10] = (unsigned char) ((nr_blocks >> 8) & 0xff); | |
551 | st->unmap_param[offset+11] = (unsigned char) (nr_blocks & 0xff); | |
552 | ||
553 | st->unmap_range_count++; | |
554 | ||
555 | } else if (ddir_sync(io_u->ddir)) { | |
87dc1ab1 | 556 | sgio_hdr_init(sd, hdr, io_u, 0); |
87dc1ab1 | 557 | hdr->dxfer_direction = SG_DXFER_NONE; |
5ad7be56 KD |
558 | if (lba < MAX_10B_LBA) |
559 | hdr->cmdp[0] = 0x35; // synccache(10) | |
560 | else | |
561 | hdr->cmdp[0] = 0x91; // synccache(16) | |
b4b9665e VF |
562 | } else |
563 | assert(0); | |
2866c82d | 564 | |
2866c82d JA |
565 | return 0; |
566 | } | |
567 | ||
b4b9665e VF |
568 | static void fio_sgio_unmap_setup(struct sg_io_hdr *hdr, struct sgio_trim *st) |
569 | { | |
570 | hdr->dxfer_len = st->unmap_range_count * 16 + 8; | |
571 | hdr->cmdp[7] = (unsigned char) (((st->unmap_range_count * 16 + 8) >> 8) & 0xff); | |
572 | hdr->cmdp[8] = (unsigned char) ((st->unmap_range_count * 16 + 8) & 0xff); | |
573 | ||
574 | st->unmap_param[0] = (unsigned char) (((16 * st->unmap_range_count + 6) >> 8) & 0xff); | |
575 | st->unmap_param[1] = (unsigned char) ((16 * st->unmap_range_count + 6) & 0xff); | |
576 | st->unmap_param[2] = (unsigned char) (((16 * st->unmap_range_count) >> 8) & 0xff); | |
577 | st->unmap_param[3] = (unsigned char) ((16 * st->unmap_range_count) & 0xff); | |
578 | ||
579 | return; | |
580 | } | |
581 | ||
2e4ef4fb JA |
582 | static enum fio_q_status fio_sgio_queue(struct thread_data *td, |
583 | struct io_u *io_u) | |
2866c82d JA |
584 | { |
585 | struct sg_io_hdr *hdr = &io_u->hdr; | |
b4b9665e | 586 | struct sgio_data *sd = td->io_ops_data; |
f6db4fa5 | 587 | int ret, do_sync = 0; |
2866c82d | 588 | |
7101d9c2 JA |
589 | fio_ro_check(td, io_u); |
590 | ||
b4b9665e | 591 | if (sgio_unbuffered(td) || ddir_sync(io_u->ddir)) |
f6db4fa5 JA |
592 | do_sync = 1; |
593 | ||
b4b9665e VF |
594 | if (io_u->ddir == DDIR_TRIM) { |
595 | if (do_sync || io_u->file->filetype == FIO_TYPE_BLOCK) { | |
596 | struct sgio_trim *st = sd->trim_queues[sd->current_queue]; | |
597 | ||
598 | /* finish cdb setup for unmap because we are | |
599 | ** doing unmap commands synchronously */ | |
600 | assert(st->unmap_range_count == 1); | |
601 | assert(io_u == st->trim_io_us[0]); | |
602 | hdr = &io_u->hdr; | |
603 | ||
604 | fio_sgio_unmap_setup(hdr, st); | |
605 | ||
606 | st->unmap_range_count = 0; | |
607 | sd->current_queue = -1; | |
608 | } else | |
609 | /* queue up trim ranges and submit in commit() */ | |
610 | return FIO_Q_QUEUED; | |
611 | } | |
612 | ||
f6db4fa5 | 613 | ret = fio_sgio_doio(td, io_u, do_sync); |
2866c82d JA |
614 | |
615 | if (ret < 0) | |
616 | io_u->error = errno; | |
617 | else if (hdr->status) { | |
618 | io_u->resid = hdr->resid; | |
619 | io_u->error = EIO; | |
b4b9665e VF |
620 | } else if (td->io_ops->commit != NULL) { |
621 | if (do_sync && !ddir_sync(io_u->ddir)) { | |
622 | io_u_mark_submit(td, 1); | |
623 | io_u_mark_complete(td, 1); | |
624 | } else if (io_u->ddir == DDIR_READ || io_u->ddir == DDIR_WRITE) { | |
625 | io_u_mark_submit(td, 1); | |
626 | io_u_queued(td, io_u); | |
627 | } | |
2866c82d JA |
628 | } |
629 | ||
95bcd815 | 630 | if (io_u->error) { |
e1161c32 | 631 | td_verror(td, io_u->error, "xfer"); |
36167d82 | 632 | return FIO_Q_COMPLETED; |
95bcd815 JA |
633 | } |
634 | ||
36167d82 | 635 | return ret; |
2866c82d JA |
636 | } |
637 | ||
b4b9665e VF |
638 | static int fio_sgio_commit(struct thread_data *td) |
639 | { | |
640 | struct sgio_data *sd = td->io_ops_data; | |
641 | struct sgio_trim *st; | |
642 | struct io_u *io_u; | |
643 | struct sg_io_hdr *hdr; | |
644 | struct timespec now; | |
645 | unsigned int i; | |
646 | int ret; | |
647 | ||
648 | if (sd->current_queue == -1) | |
649 | return 0; | |
650 | ||
651 | st = sd->trim_queues[sd->current_queue]; | |
652 | io_u = st->trim_io_us[0]; | |
653 | hdr = &io_u->hdr; | |
654 | ||
655 | fio_sgio_unmap_setup(hdr, st); | |
656 | ||
657 | sd->current_queue = -1; | |
658 | ||
659 | ret = fio_sgio_rw_doio(io_u->file, io_u, 0); | |
660 | ||
661 | if (ret < 0) | |
662 | for (i = 0; i < st->unmap_range_count; i++) | |
663 | st->trim_io_us[i]->error = errno; | |
664 | else if (hdr->status) | |
665 | for (i = 0; i < st->unmap_range_count; i++) { | |
666 | st->trim_io_us[i]->resid = hdr->resid; | |
667 | st->trim_io_us[i]->error = EIO; | |
668 | } | |
669 | else { | |
670 | if (fio_fill_issue_time(td)) { | |
671 | fio_gettime(&now, NULL); | |
672 | for (i = 0; i < st->unmap_range_count; i++) { | |
673 | struct io_u *io_u = st->trim_io_us[i]; | |
674 | ||
675 | memcpy(&io_u->issue_time, &now, sizeof(now)); | |
676 | io_u_queued(td, io_u); | |
677 | } | |
678 | } | |
679 | io_u_mark_submit(td, st->unmap_range_count); | |
680 | } | |
681 | ||
682 | if (io_u->error) { | |
683 | td_verror(td, io_u->error, "xfer"); | |
684 | return 0; | |
685 | } | |
686 | ||
687 | if (ret == FIO_Q_QUEUED) | |
688 | return 0; | |
689 | else | |
690 | return ret; | |
691 | } | |
692 | ||
2866c82d JA |
693 | static struct io_u *fio_sgio_event(struct thread_data *td, int event) |
694 | { | |
565e784d | 695 | struct sgio_data *sd = td->io_ops_data; |
2866c82d JA |
696 | |
697 | return sd->events[event]; | |
698 | } | |
699 | ||
5ad7be56 KD |
700 | static int fio_sgio_read_capacity(struct thread_data *td, unsigned int *bs, |
701 | unsigned long long *max_lba) | |
2866c82d | 702 | { |
5ad7be56 KD |
703 | /* |
704 | * need to do read capacity operation w/o benefit of sd or | |
705 | * io_u structures, which are not initialized until later. | |
706 | */ | |
707 | struct sg_io_hdr hdr; | |
708 | unsigned char cmd[16]; | |
709 | unsigned char sb[64]; | |
710 | unsigned char buf[32]; // read capacity return | |
2866c82d | 711 | int ret; |
5ad7be56 | 712 | int fd = -1; |
2866c82d | 713 | |
5ad7be56 | 714 | struct fio_file *f = td->files[0]; |
2866c82d | 715 | |
5ad7be56 KD |
716 | /* open file independent of rest of application */ |
717 | fd = open(f->file_name, O_RDONLY); | |
718 | if (fd < 0) | |
719 | return -errno; | |
2866c82d | 720 | |
5ad7be56 KD |
721 | memset(&hdr, 0, sizeof(hdr)); |
722 | memset(cmd, 0, sizeof(cmd)); | |
723 | memset(sb, 0, sizeof(sb)); | |
724 | memset(buf, 0, sizeof(buf)); | |
2866c82d | 725 | |
5ad7be56 KD |
726 | /* First let's try a 10 byte read capacity. */ |
727 | hdr.interface_id = 'S'; | |
728 | hdr.cmdp = cmd; | |
729 | hdr.cmd_len = 10; | |
730 | hdr.sbp = sb; | |
731 | hdr.mx_sb_len = sizeof(sb); | |
732 | hdr.timeout = SCSI_TIMEOUT_MS; | |
733 | hdr.cmdp[0] = 0x25; // Read Capacity(10) | |
734 | hdr.dxfer_direction = SG_DXFER_FROM_DEV; | |
735 | hdr.dxferp = buf; | |
736 | hdr.dxfer_len = sizeof(buf); | |
737 | ||
738 | ret = ioctl(fd, SG_IO, &hdr); | |
739 | if (ret < 0) { | |
740 | close(fd); | |
2866c82d | 741 | return ret; |
5ad7be56 | 742 | } |
2866c82d | 743 | |
7ad2ddff JA |
744 | *bs = ((unsigned long) buf[4] << 24) | ((unsigned long) buf[5] << 16) | |
745 | ((unsigned long) buf[6] << 8) | (unsigned long) buf[7]; | |
746 | *max_lba = ((unsigned long) buf[0] << 24) | ((unsigned long) buf[1] << 16) | | |
747 | ((unsigned long) buf[2] << 8) | (unsigned long) buf[3]; | |
5ad7be56 KD |
748 | |
749 | /* | |
fde57152 TK |
750 | * If max lba masked by MAX_10B_LBA equals MAX_10B_LBA, |
751 | * then need to retry with 16 byte Read Capacity command. | |
5ad7be56 KD |
752 | */ |
753 | if (*max_lba == MAX_10B_LBA) { | |
754 | hdr.cmd_len = 16; | |
28c43a89 TK |
755 | hdr.cmdp[0] = 0x9e; // service action |
756 | hdr.cmdp[1] = 0x10; // Read Capacity(16) | |
5ad7be56 KD |
757 | hdr.cmdp[10] = (unsigned char) ((sizeof(buf) >> 24) & 0xff); |
758 | hdr.cmdp[11] = (unsigned char) ((sizeof(buf) >> 16) & 0xff); | |
759 | hdr.cmdp[12] = (unsigned char) ((sizeof(buf) >> 8) & 0xff); | |
760 | hdr.cmdp[13] = (unsigned char) (sizeof(buf) & 0xff); | |
761 | ||
762 | hdr.dxfer_direction = SG_DXFER_FROM_DEV; | |
763 | hdr.dxferp = buf; | |
764 | hdr.dxfer_len = sizeof(buf); | |
765 | ||
766 | ret = ioctl(fd, SG_IO, &hdr); | |
767 | if (ret < 0) { | |
768 | close(fd); | |
769 | return ret; | |
770 | } | |
771 | ||
772 | /* record if an io error occurred */ | |
773 | if (hdr.info & SG_INFO_CHECK) | |
774 | td_verror(td, EIO, "fio_sgio_read_capacity"); | |
775 | ||
776 | *bs = (buf[8] << 24) | (buf[9] << 16) | (buf[10] << 8) | buf[11]; | |
777 | *max_lba = ((unsigned long long)buf[0] << 56) | | |
778 | ((unsigned long long)buf[1] << 48) | | |
779 | ((unsigned long long)buf[2] << 40) | | |
780 | ((unsigned long long)buf[3] << 32) | | |
781 | ((unsigned long long)buf[4] << 24) | | |
782 | ((unsigned long long)buf[5] << 16) | | |
783 | ((unsigned long long)buf[6] << 8) | | |
784 | (unsigned long long)buf[7]; | |
785 | } | |
786 | ||
787 | close(fd); | |
2866c82d JA |
788 | return 0; |
789 | } | |
790 | ||
791 | static void fio_sgio_cleanup(struct thread_data *td) | |
792 | { | |
565e784d | 793 | struct sgio_data *sd = td->io_ops_data; |
b4b9665e | 794 | int i; |
dc0deca2 JA |
795 | |
796 | if (sd) { | |
797 | free(sd->events); | |
798 | free(sd->cmds); | |
799 | free(sd->fd_flags); | |
800 | free(sd->pfds); | |
801 | free(sd->sgbuf); | |
b4b9665e VF |
802 | free(sd->trim_queue_map); |
803 | ||
804 | for (i = 0; i < td->o.iodepth; i++) { | |
805 | free(sd->trim_queues[i]->unmap_param); | |
806 | free(sd->trim_queues[i]->trim_io_us); | |
807 | free(sd->trim_queues[i]); | |
808 | } | |
809 | ||
810 | free(sd->trim_queues); | |
dc0deca2 | 811 | free(sd); |
2866c82d JA |
812 | } |
813 | } | |
814 | ||
815 | static int fio_sgio_init(struct thread_data *td) | |
816 | { | |
817 | struct sgio_data *sd; | |
b4b9665e VF |
818 | struct sgio_trim *st; |
819 | int i; | |
2866c82d | 820 | |
b4b9665e VF |
821 | sd = calloc(1, sizeof(*sd)); |
822 | sd->cmds = calloc(td->o.iodepth, sizeof(struct sgio_cmd)); | |
823 | sd->sgbuf = calloc(td->o.iodepth, sizeof(struct sg_io_hdr)); | |
824 | sd->events = calloc(td->o.iodepth, sizeof(struct io_u *)); | |
825 | sd->pfds = calloc(td->o.nr_files, sizeof(struct pollfd)); | |
826 | sd->fd_flags = calloc(td->o.nr_files, sizeof(int)); | |
5ad7be56 | 827 | sd->type_checked = 0; |
b4b9665e VF |
828 | |
829 | sd->trim_queues = calloc(td->o.iodepth, sizeof(struct sgio_trim *)); | |
830 | sd->current_queue = -1; | |
831 | sd->trim_queue_map = calloc(td->o.iodepth, sizeof(int)); | |
832 | for (i = 0; i < td->o.iodepth; i++) { | |
833 | sd->trim_queues[i] = calloc(1, sizeof(struct sgio_trim)); | |
834 | st = sd->trim_queues[i]; | |
835 | st->unmap_param = calloc(td->o.iodepth + 1, sizeof(char[16])); | |
836 | st->unmap_range_count = 0; | |
837 | st->trim_io_us = calloc(td->o.iodepth, sizeof(struct io_u *)); | |
838 | } | |
839 | ||
565e784d | 840 | td->io_ops_data = sd; |
2866c82d | 841 | |
b5af8293 JA |
842 | /* |
843 | * we want to do it, regardless of whether odirect is set or not | |
844 | */ | |
2dc1bbeb | 845 | td->o.override_sync = 1; |
b5af8293 JA |
846 | return 0; |
847 | } | |
848 | ||
849 | static int fio_sgio_type_check(struct thread_data *td, struct fio_file *f) | |
850 | { | |
565e784d | 851 | struct sgio_data *sd = td->io_ops_data; |
5ad7be56 KD |
852 | unsigned int bs = 0; |
853 | unsigned long long max_lba = 0; | |
854 | ||
686fbd31 | 855 | if (f->filetype == FIO_TYPE_BLOCK) { |
53cdc686 | 856 | if (ioctl(f->fd, BLKSSZGET, &bs) < 0) { |
e1161c32 | 857 | td_verror(td, errno, "ioctl"); |
b5af8293 | 858 | return 1; |
2866c82d | 859 | } |
af52b345 | 860 | } else if (f->filetype == FIO_TYPE_CHAR) { |
b5af8293 | 861 | int version, ret; |
2866c82d | 862 | |
53cdc686 | 863 | if (ioctl(f->fd, SG_GET_VERSION_NUM, &version) < 0) { |
e1161c32 | 864 | td_verror(td, errno, "ioctl"); |
b5af8293 | 865 | return 1; |
2866c82d JA |
866 | } |
867 | ||
5ad7be56 KD |
868 | ret = fio_sgio_read_capacity(td, &bs, &max_lba); |
869 | if (ret) { | |
870 | td_verror(td, td->error, "fio_sgio_read_capacity"); | |
871 | log_err("ioengine sg unable to read capacity successfully\n"); | |
b5af8293 | 872 | return 1; |
5ad7be56 | 873 | } |
2866c82d | 874 | } else { |
16ada754 | 875 | td_verror(td, EINVAL, "wrong file type"); |
30dac136 | 876 | log_err("ioengine sg only works on block or character devices\n"); |
b5af8293 | 877 | return 1; |
2866c82d JA |
878 | } |
879 | ||
880 | sd->bs = bs; | |
5ad7be56 | 881 | // Determine size of commands needed based on max_lba |
166c6b42 TK |
882 | if (max_lba >= MAX_10B_LBA) { |
883 | dprint(FD_IO, "sgio_type_check: using 16 byte read/write " | |
884 | "commands for lba above 0x%016llx/0x%016llx\n", | |
885 | MAX_10B_LBA, max_lba); | |
5ad7be56 KD |
886 | } |
887 | ||
686fbd31 | 888 | if (f->filetype == FIO_TYPE_BLOCK) { |
36167d82 JA |
889 | td->io_ops->getevents = NULL; |
890 | td->io_ops->event = NULL; | |
b4b9665e VF |
891 | td->io_ops->commit = NULL; |
892 | /* | |
893 | ** Setting these functions to null may cause problems | |
894 | ** with filename=/dev/sda:/dev/sg0 since we are only | |
895 | ** considering a single file | |
896 | */ | |
36167d82 | 897 | } |
5ad7be56 | 898 | sd->type_checked = 1; |
2866c82d | 899 | |
2866c82d | 900 | return 0; |
b5af8293 JA |
901 | } |
902 | ||
903 | static int fio_sgio_open(struct thread_data *td, struct fio_file *f) | |
904 | { | |
565e784d | 905 | struct sgio_data *sd = td->io_ops_data; |
b5af8293 JA |
906 | int ret; |
907 | ||
908 | ret = generic_open_file(td, f); | |
909 | if (ret) | |
910 | return ret; | |
911 | ||
15ba640a | 912 | if (sd && !sd->type_checked && fio_sgio_type_check(td, f)) { |
6977bcd0 | 913 | ret = generic_close_file(td, f); |
b5af8293 JA |
914 | return 1; |
915 | } | |
916 | ||
917 | return 0; | |
2866c82d JA |
918 | } |
919 | ||
5ad7be56 KD |
920 | /* |
921 | * Build an error string with details about the driver, host or scsi | |
922 | * error contained in the sg header Caller will use as necessary. | |
923 | */ | |
924 | static char *fio_sgio_errdetails(struct io_u *io_u) | |
925 | { | |
926 | struct sg_io_hdr *hdr = &io_u->hdr; | |
927 | #define MAXERRDETAIL 1024 | |
928 | #define MAXMSGCHUNK 128 | |
fd04fa03 | 929 | char *msg, msgchunk[MAXMSGCHUNK]; |
5ad7be56 KD |
930 | int i; |
931 | ||
efa72f25 | 932 | msg = calloc(1, MAXERRDETAIL); |
fd04fa03 | 933 | strcpy(msg, ""); |
5ad7be56 KD |
934 | |
935 | /* | |
936 | * can't seem to find sg_err.h, so I'll just echo the define values | |
937 | * so others can search on internet to find clearer clues of meaning. | |
938 | */ | |
939 | if (hdr->info & SG_INFO_CHECK) { | |
5ad7be56 KD |
940 | if (hdr->host_status) { |
941 | snprintf(msgchunk, MAXMSGCHUNK, "SG Host Status: 0x%02x; ", hdr->host_status); | |
942 | strlcat(msg, msgchunk, MAXERRDETAIL); | |
943 | switch (hdr->host_status) { | |
944 | case 0x01: | |
945 | strlcat(msg, "SG_ERR_DID_NO_CONNECT", MAXERRDETAIL); | |
946 | break; | |
947 | case 0x02: | |
948 | strlcat(msg, "SG_ERR_DID_BUS_BUSY", MAXERRDETAIL); | |
949 | break; | |
950 | case 0x03: | |
951 | strlcat(msg, "SG_ERR_DID_TIME_OUT", MAXERRDETAIL); | |
952 | break; | |
953 | case 0x04: | |
954 | strlcat(msg, "SG_ERR_DID_BAD_TARGET", MAXERRDETAIL); | |
955 | break; | |
956 | case 0x05: | |
957 | strlcat(msg, "SG_ERR_DID_ABORT", MAXERRDETAIL); | |
958 | break; | |
959 | case 0x06: | |
960 | strlcat(msg, "SG_ERR_DID_PARITY", MAXERRDETAIL); | |
961 | break; | |
962 | case 0x07: | |
963 | strlcat(msg, "SG_ERR_DID_ERROR (internal error)", MAXERRDETAIL); | |
964 | break; | |
965 | case 0x08: | |
966 | strlcat(msg, "SG_ERR_DID_RESET", MAXERRDETAIL); | |
967 | break; | |
968 | case 0x09: | |
969 | strlcat(msg, "SG_ERR_DID_BAD_INTR (unexpected)", MAXERRDETAIL); | |
970 | break; | |
971 | case 0x0a: | |
972 | strlcat(msg, "SG_ERR_DID_PASSTHROUGH", MAXERRDETAIL); | |
973 | break; | |
974 | case 0x0b: | |
975 | strlcat(msg, "SG_ERR_DID_SOFT_ERROR (driver retry?)", MAXERRDETAIL); | |
976 | break; | |
977 | case 0x0c: | |
978 | strlcat(msg, "SG_ERR_DID_IMM_RETRY", MAXERRDETAIL); | |
979 | break; | |
980 | case 0x0d: | |
981 | strlcat(msg, "SG_ERR_DID_REQUEUE", MAXERRDETAIL); | |
982 | break; | |
2ce6c6e5 TK |
983 | case 0x0e: |
984 | strlcat(msg, "SG_ERR_DID_TRANSPORT_DISRUPTED", MAXERRDETAIL); | |
985 | break; | |
986 | case 0x0f: | |
987 | strlcat(msg, "SG_ERR_DID_TRANSPORT_FAILFAST", MAXERRDETAIL); | |
988 | break; | |
989 | case 0x10: | |
990 | strlcat(msg, "SG_ERR_DID_TARGET_FAILURE", MAXERRDETAIL); | |
991 | break; | |
992 | case 0x11: | |
993 | strlcat(msg, "SG_ERR_DID_NEXUS_FAILURE", MAXERRDETAIL); | |
994 | break; | |
995 | case 0x12: | |
996 | strlcat(msg, "SG_ERR_DID_ALLOC_FAILURE", MAXERRDETAIL); | |
997 | break; | |
998 | case 0x13: | |
999 | strlcat(msg, "SG_ERR_DID_MEDIUM_ERROR", MAXERRDETAIL); | |
1000 | break; | |
5ad7be56 KD |
1001 | default: |
1002 | strlcat(msg, "Unknown", MAXERRDETAIL); | |
1003 | break; | |
1004 | } | |
1005 | strlcat(msg, ". ", MAXERRDETAIL); | |
1006 | } | |
1007 | if (hdr->driver_status) { | |
1008 | snprintf(msgchunk, MAXMSGCHUNK, "SG Driver Status: 0x%02x; ", hdr->driver_status); | |
1009 | strlcat(msg, msgchunk, MAXERRDETAIL); | |
1010 | switch (hdr->driver_status & 0x0F) { | |
1011 | case 0x01: | |
1012 | strlcat(msg, "SG_ERR_DRIVER_BUSY", MAXERRDETAIL); | |
1013 | break; | |
1014 | case 0x02: | |
1015 | strlcat(msg, "SG_ERR_DRIVER_SOFT", MAXERRDETAIL); | |
1016 | break; | |
1017 | case 0x03: | |
1018 | strlcat(msg, "SG_ERR_DRIVER_MEDIA", MAXERRDETAIL); | |
1019 | break; | |
1020 | case 0x04: | |
1021 | strlcat(msg, "SG_ERR_DRIVER_ERROR", MAXERRDETAIL); | |
1022 | break; | |
1023 | case 0x05: | |
1024 | strlcat(msg, "SG_ERR_DRIVER_INVALID", MAXERRDETAIL); | |
1025 | break; | |
1026 | case 0x06: | |
1027 | strlcat(msg, "SG_ERR_DRIVER_TIMEOUT", MAXERRDETAIL); | |
1028 | break; | |
1029 | case 0x07: | |
1030 | strlcat(msg, "SG_ERR_DRIVER_HARD", MAXERRDETAIL); | |
1031 | break; | |
1032 | case 0x08: | |
1033 | strlcat(msg, "SG_ERR_DRIVER_SENSE", MAXERRDETAIL); | |
1034 | break; | |
1035 | default: | |
1036 | strlcat(msg, "Unknown", MAXERRDETAIL); | |
1037 | break; | |
1038 | } | |
1039 | strlcat(msg, "; ", MAXERRDETAIL); | |
1040 | switch (hdr->driver_status & 0xF0) { | |
1041 | case 0x10: | |
1042 | strlcat(msg, "SG_ERR_SUGGEST_RETRY", MAXERRDETAIL); | |
1043 | break; | |
1044 | case 0x20: | |
1045 | strlcat(msg, "SG_ERR_SUGGEST_ABORT", MAXERRDETAIL); | |
1046 | break; | |
1047 | case 0x30: | |
1048 | strlcat(msg, "SG_ERR_SUGGEST_REMAP", MAXERRDETAIL); | |
1049 | break; | |
1050 | case 0x40: | |
1051 | strlcat(msg, "SG_ERR_SUGGEST_DIE", MAXERRDETAIL); | |
1052 | break; | |
1053 | case 0x80: | |
1054 | strlcat(msg, "SG_ERR_SUGGEST_SENSE", MAXERRDETAIL); | |
1055 | break; | |
1056 | } | |
1057 | strlcat(msg, ". ", MAXERRDETAIL); | |
1058 | } | |
1059 | if (hdr->status) { | |
1060 | snprintf(msgchunk, MAXMSGCHUNK, "SG SCSI Status: 0x%02x; ", hdr->status); | |
1061 | strlcat(msg, msgchunk, MAXERRDETAIL); | |
1062 | // SCSI 3 status codes | |
1063 | switch (hdr->status) { | |
1064 | case 0x02: | |
1065 | strlcat(msg, "CHECK_CONDITION", MAXERRDETAIL); | |
1066 | break; | |
1067 | case 0x04: | |
1068 | strlcat(msg, "CONDITION_MET", MAXERRDETAIL); | |
1069 | break; | |
1070 | case 0x08: | |
1071 | strlcat(msg, "BUSY", MAXERRDETAIL); | |
1072 | break; | |
1073 | case 0x10: | |
1074 | strlcat(msg, "INTERMEDIATE", MAXERRDETAIL); | |
1075 | break; | |
1076 | case 0x14: | |
1077 | strlcat(msg, "INTERMEDIATE_CONDITION_MET", MAXERRDETAIL); | |
1078 | break; | |
1079 | case 0x18: | |
1080 | strlcat(msg, "RESERVATION_CONFLICT", MAXERRDETAIL); | |
1081 | break; | |
1082 | case 0x22: | |
1083 | strlcat(msg, "COMMAND_TERMINATED", MAXERRDETAIL); | |
1084 | break; | |
1085 | case 0x28: | |
1086 | strlcat(msg, "TASK_SET_FULL", MAXERRDETAIL); | |
1087 | break; | |
1088 | case 0x30: | |
1089 | strlcat(msg, "ACA_ACTIVE", MAXERRDETAIL); | |
1090 | break; | |
1091 | case 0x40: | |
1092 | strlcat(msg, "TASK_ABORTED", MAXERRDETAIL); | |
1093 | break; | |
1094 | default: | |
1095 | strlcat(msg, "Unknown", MAXERRDETAIL); | |
1096 | break; | |
1097 | } | |
1098 | strlcat(msg, ". ", MAXERRDETAIL); | |
1099 | } | |
1100 | if (hdr->sb_len_wr) { | |
1101 | snprintf(msgchunk, MAXMSGCHUNK, "Sense Data (%d bytes):", hdr->sb_len_wr); | |
1102 | strlcat(msg, msgchunk, MAXERRDETAIL); | |
1103 | for (i = 0; i < hdr->sb_len_wr; i++) { | |
1104 | snprintf(msgchunk, MAXMSGCHUNK, " %02x", hdr->sbp[i]); | |
1105 | strlcat(msg, msgchunk, MAXERRDETAIL); | |
1106 | } | |
1107 | strlcat(msg, ". ", MAXERRDETAIL); | |
1108 | } | |
1109 | if (hdr->resid != 0) { | |
1110 | snprintf(msgchunk, MAXMSGCHUNK, "SG Driver: %d bytes out of %d not transferred. ", hdr->resid, hdr->dxfer_len); | |
1111 | strlcat(msg, msgchunk, MAXERRDETAIL); | |
5ad7be56 KD |
1112 | } |
1113 | } | |
1114 | ||
fd04fa03 TK |
1115 | if (!(hdr->info & SG_INFO_CHECK) && !strlen(msg)) |
1116 | strncpy(msg, "SG Driver did not report a Host, Driver or Device check", | |
1117 | MAXERRDETAIL - 1); | |
5ad7be56 | 1118 | |
fd04fa03 | 1119 | return msg; |
5ad7be56 KD |
1120 | } |
1121 | ||
1122 | /* | |
1123 | * get max file size from read capacity. | |
1124 | */ | |
1125 | static int fio_sgio_get_file_size(struct thread_data *td, struct fio_file *f) | |
1126 | { | |
1127 | /* | |
1128 | * get_file_size is being called even before sgio_init is | |
1129 | * called, so none of the sg_io structures are | |
1130 | * initialized in the thread_data yet. So we need to do the | |
1131 | * ReadCapacity without any of those helpers. One of the effects | |
1132 | * is that ReadCapacity may get called 4 times on each open: | |
1133 | * readcap(10) followed by readcap(16) if needed - just to get | |
1134 | * the file size after the init occurs - it will be called | |
1135 | * again when "type_check" is called during structure | |
1136 | * initialization I'm not sure how to prevent this little | |
1137 | * inefficiency. | |
1138 | */ | |
1139 | unsigned int bs = 0; | |
1140 | unsigned long long max_lba = 0; | |
1141 | int ret; | |
1142 | ||
1143 | if (fio_file_size_known(f)) | |
1144 | return 0; | |
1145 | ||
686fbd31 | 1146 | if (f->filetype != FIO_TYPE_BLOCK && f->filetype != FIO_TYPE_CHAR) { |
30dac136 TK |
1147 | td_verror(td, EINVAL, "wrong file type"); |
1148 | log_err("ioengine sg only works on block or character devices\n"); | |
1149 | return 1; | |
1150 | } | |
1151 | ||
5ad7be56 KD |
1152 | ret = fio_sgio_read_capacity(td, &bs, &max_lba); |
1153 | if (ret ) { | |
1154 | td_verror(td, td->error, "fio_sgio_read_capacity"); | |
1155 | log_err("ioengine sg unable to successfully execute read capacity to get block size and maximum lba\n"); | |
1156 | return 1; | |
1157 | } | |
1158 | ||
1159 | f->real_file_size = (max_lba + 1) * bs; | |
1160 | fio_file_set_size_known(f); | |
1161 | return 0; | |
1162 | } | |
1163 | ||
1164 | ||
5f350952 | 1165 | static struct ioengine_ops ioengine = { |
2866c82d JA |
1166 | .name = "sg", |
1167 | .version = FIO_IOOPS_VERSION, | |
1168 | .init = fio_sgio_init, | |
1169 | .prep = fio_sgio_prep, | |
1170 | .queue = fio_sgio_queue, | |
b4b9665e | 1171 | .commit = fio_sgio_commit, |
2866c82d | 1172 | .getevents = fio_sgio_getevents, |
5ad7be56 | 1173 | .errdetails = fio_sgio_errdetails, |
2866c82d JA |
1174 | .event = fio_sgio_event, |
1175 | .cleanup = fio_sgio_cleanup, | |
b5af8293 JA |
1176 | .open_file = fio_sgio_open, |
1177 | .close_file = generic_close_file, | |
fde57152 | 1178 | .get_file_size = fio_sgio_get_file_size, |
b2a15192 | 1179 | .flags = FIO_SYNCIO | FIO_RAWIO, |
52b81b7c KD |
1180 | .options = options, |
1181 | .option_struct_size = sizeof(struct sg_options) | |
2866c82d | 1182 | }; |
34cfcdaf JA |
1183 | |
1184 | #else /* FIO_HAVE_SGIO */ | |
1185 | ||
1186 | /* | |
1187 | * When we have a proper configure system in place, we simply wont build | |
1188 | * and install this io engine. For now install a crippled version that | |
1189 | * just complains and fails to load. | |
1190 | */ | |
1191 | static int fio_sgio_init(struct thread_data fio_unused *td) | |
1192 | { | |
a3edaf76 | 1193 | log_err("fio: ioengine sg not available\n"); |
34cfcdaf JA |
1194 | return 1; |
1195 | } | |
1196 | ||
5f350952 | 1197 | static struct ioengine_ops ioengine = { |
d0c70934 | 1198 | .name = "sg", |
34cfcdaf JA |
1199 | .version = FIO_IOOPS_VERSION, |
1200 | .init = fio_sgio_init, | |
1201 | }; | |
1202 | ||
1203 | #endif | |
5f350952 JA |
1204 | |
1205 | static void fio_init fio_sgio_register(void) | |
1206 | { | |
1207 | register_ioengine(&ioengine); | |
1208 | } | |
1209 | ||
1210 | static void fio_exit fio_sgio_unregister(void) | |
1211 | { | |
1212 | unregister_ioengine(&ioengine); | |
1213 | } |