| | 1 | /* |
| | 2 | * sg engine |
| | 3 | * |
| | 4 | * IO engine that uses the Linux SG v3 interface to talk to SCSI devices |
| | 5 | * |
| | 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 | * |
| | 51 | */ |
| | 52 | #include <stdio.h> |
| | 53 | #include <stdlib.h> |
| | 54 | #include <unistd.h> |
| | 55 | #include <errno.h> |
| | 56 | #include <poll.h> |
| | 57 | |
| | 58 | #include "../fio.h" |
| | 59 | #include "../optgroup.h" |
| | 60 | |
| | 61 | #ifdef FIO_HAVE_SGIO |
| | 62 | |
| | 63 | #ifndef SGV4_FLAG_HIPRI |
| | 64 | #define SGV4_FLAG_HIPRI 0x800 |
| | 65 | #endif |
| | 66 | |
| | 67 | enum { |
| | 68 | FIO_SG_WRITE = 1, |
| | 69 | FIO_SG_WRITE_VERIFY = 2, |
| | 70 | FIO_SG_WRITE_SAME = 3 |
| | 71 | }; |
| | 72 | |
| | 73 | struct sg_options { |
| | 74 | void *pad; |
| | 75 | unsigned int hipri; |
| | 76 | unsigned int readfua; |
| | 77 | unsigned int writefua; |
| | 78 | unsigned int write_mode; |
| | 79 | }; |
| | 80 | |
| | 81 | static struct fio_option options[] = { |
| | 82 | { |
| | 83 | .name = "hipri", |
| | 84 | .lname = "High Priority", |
| | 85 | .type = FIO_OPT_STR_SET, |
| | 86 | .off1 = offsetof(struct sg_options, hipri), |
| | 87 | .help = "Use polled IO completions", |
| | 88 | .category = FIO_OPT_C_ENGINE, |
| | 89 | .group = FIO_OPT_G_SG, |
| | 90 | }, |
| | 91 | { |
| | 92 | .name = "readfua", |
| | 93 | .lname = "sg engine read fua flag support", |
| | 94 | .type = FIO_OPT_BOOL, |
| | 95 | .off1 = offsetof(struct sg_options, readfua), |
| | 96 | .help = "Set FUA flag (force unit access) for all Read operations", |
| | 97 | .def = "0", |
| | 98 | .category = FIO_OPT_C_ENGINE, |
| | 99 | .group = FIO_OPT_G_SG, |
| | 100 | }, |
| | 101 | { |
| | 102 | .name = "writefua", |
| | 103 | .lname = "sg engine write fua flag support", |
| | 104 | .type = FIO_OPT_BOOL, |
| | 105 | .off1 = offsetof(struct sg_options, writefua), |
| | 106 | .help = "Set FUA flag (force unit access) for all Write operations", |
| | 107 | .def = "0", |
| | 108 | .category = FIO_OPT_C_ENGINE, |
| | 109 | .group = FIO_OPT_G_SG, |
| | 110 | }, |
| | 111 | { |
| | 112 | .name = "sg_write_mode", |
| | 113 | .lname = "specify sg write mode", |
| | 114 | .type = FIO_OPT_STR, |
| | 115 | .off1 = offsetof(struct sg_options, write_mode), |
| | 116 | .help = "Specify SCSI WRITE mode", |
| | 117 | .def = "write", |
| | 118 | .posval = { |
| | 119 | { .ival = "write", |
| | 120 | .oval = FIO_SG_WRITE, |
| | 121 | .help = "Issue standard SCSI WRITE commands", |
| | 122 | }, |
| | 123 | { .ival = "verify", |
| | 124 | .oval = FIO_SG_WRITE_VERIFY, |
| | 125 | .help = "Issue SCSI WRITE AND VERIFY commands", |
| | 126 | }, |
| | 127 | { .ival = "same", |
| | 128 | .oval = FIO_SG_WRITE_SAME, |
| | 129 | .help = "Issue SCSI WRITE SAME commands", |
| | 130 | }, |
| | 131 | }, |
| | 132 | .category = FIO_OPT_C_ENGINE, |
| | 133 | .group = FIO_OPT_G_SG, |
| | 134 | }, |
| | 135 | { |
| | 136 | .name = NULL, |
| | 137 | }, |
| | 138 | }; |
| | 139 | |
| | 140 | #define MAX_10B_LBA 0xFFFFFFFFULL |
| | 141 | #define SCSI_TIMEOUT_MS 30000 // 30 second timeout; currently no method to override |
| | 142 | #define MAX_SB 64 // sense block maximum return size |
| | 143 | /* |
| | 144 | #define FIO_SGIO_DEBUG |
| | 145 | */ |
| | 146 | |
| | 147 | struct sgio_cmd { |
| | 148 | unsigned char cdb[16]; // enhanced from 10 to support 16 byte commands |
| | 149 | unsigned char sb[MAX_SB]; // add sense block to commands |
| | 150 | int nr; |
| | 151 | }; |
| | 152 | |
| | 153 | struct sgio_trim { |
| | 154 | uint8_t *unmap_param; |
| | 155 | unsigned int unmap_range_count; |
| | 156 | struct io_u **trim_io_us; |
| | 157 | }; |
| | 158 | |
| | 159 | struct sgio_data { |
| | 160 | struct sgio_cmd *cmds; |
| | 161 | struct io_u **events; |
| | 162 | struct pollfd *pfds; |
| | 163 | int *fd_flags; |
| | 164 | void *sgbuf; |
| | 165 | unsigned int bs; |
| | 166 | int type_checked; |
| | 167 | struct sgio_trim **trim_queues; |
| | 168 | int current_queue; |
| | 169 | #ifdef FIO_SGIO_DEBUG |
| | 170 | unsigned int *trim_queue_map; |
| | 171 | #endif |
| | 172 | }; |
| | 173 | |
| | 174 | static inline uint32_t sgio_get_be32(uint8_t *buf) |
| | 175 | { |
| | 176 | return be32_to_cpu(*((uint32_t *) buf)); |
| | 177 | } |
| | 178 | |
| | 179 | static inline uint64_t sgio_get_be64(uint8_t *buf) |
| | 180 | { |
| | 181 | return be64_to_cpu(*((uint64_t *) buf)); |
| | 182 | } |
| | 183 | |
| | 184 | static inline void sgio_set_be16(uint16_t val, uint8_t *buf) |
| | 185 | { |
| | 186 | uint16_t t = cpu_to_be16(val); |
| | 187 | |
| | 188 | memcpy(buf, &t, sizeof(uint16_t)); |
| | 189 | } |
| | 190 | |
| | 191 | static inline void sgio_set_be32(uint32_t val, uint8_t *buf) |
| | 192 | { |
| | 193 | uint32_t t = cpu_to_be32(val); |
| | 194 | |
| | 195 | memcpy(buf, &t, sizeof(uint32_t)); |
| | 196 | } |
| | 197 | |
| | 198 | static inline void sgio_set_be64(uint64_t val, uint8_t *buf) |
| | 199 | { |
| | 200 | uint64_t t = cpu_to_be64(val); |
| | 201 | |
| | 202 | memcpy(buf, &t, sizeof(uint64_t)); |
| | 203 | } |
| | 204 | |
| | 205 | static inline bool sgio_unbuffered(struct thread_data *td) |
| | 206 | { |
| | 207 | return (td->o.odirect || td->o.sync_io); |
| | 208 | } |
| | 209 | |
| | 210 | static void sgio_hdr_init(struct sgio_data *sd, struct sg_io_hdr *hdr, |
| | 211 | struct io_u *io_u, int fs) |
| | 212 | { |
| | 213 | struct sgio_cmd *sc = &sd->cmds[io_u->index]; |
| | 214 | |
| | 215 | memset(hdr, 0, sizeof(*hdr)); |
| | 216 | memset(sc->cdb, 0, sizeof(sc->cdb)); |
| | 217 | |
| | 218 | hdr->interface_id = 'S'; |
| | 219 | hdr->cmdp = sc->cdb; |
| | 220 | hdr->cmd_len = sizeof(sc->cdb); |
| | 221 | hdr->sbp = sc->sb; |
| | 222 | hdr->mx_sb_len = sizeof(sc->sb); |
| | 223 | hdr->pack_id = io_u->index; |
| | 224 | hdr->usr_ptr = io_u; |
| | 225 | hdr->timeout = SCSI_TIMEOUT_MS; |
| | 226 | |
| | 227 | if (fs) { |
| | 228 | hdr->dxferp = io_u->xfer_buf; |
| | 229 | hdr->dxfer_len = io_u->xfer_buflen; |
| | 230 | } |
| | 231 | } |
| | 232 | |
| | 233 | static int pollin_events(struct pollfd *pfds, int fds) |
| | 234 | { |
| | 235 | int i; |
| | 236 | |
| | 237 | for (i = 0; i < fds; i++) |
| | 238 | if (pfds[i].revents & POLLIN) |
| | 239 | return 1; |
| | 240 | |
| | 241 | return 0; |
| | 242 | } |
| | 243 | |
| | 244 | static int sg_fd_read(int fd, void *data, size_t size) |
| | 245 | { |
| | 246 | int err = 0; |
| | 247 | |
| | 248 | while (size) { |
| | 249 | ssize_t ret; |
| | 250 | |
| | 251 | ret = read(fd, data, size); |
| | 252 | if (ret < 0) { |
| | 253 | if (errno == EAGAIN || errno == EINTR) |
| | 254 | continue; |
| | 255 | err = errno; |
| | 256 | break; |
| | 257 | } else if (!ret) |
| | 258 | break; |
| | 259 | else { |
| | 260 | data += ret; |
| | 261 | size -= ret; |
| | 262 | } |
| | 263 | } |
| | 264 | |
| | 265 | if (err) |
| | 266 | return err; |
| | 267 | if (size) |
| | 268 | return EAGAIN; |
| | 269 | |
| | 270 | return 0; |
| | 271 | } |
| | 272 | |
| | 273 | static int fio_sgio_getevents(struct thread_data *td, unsigned int min, |
| | 274 | unsigned int max, |
| | 275 | const struct timespec fio_unused *t) |
| | 276 | { |
| | 277 | struct sgio_data *sd = td->io_ops_data; |
| | 278 | int left = max, eventNum, ret, r = 0, trims = 0; |
| | 279 | void *buf = sd->sgbuf; |
| | 280 | unsigned int i, j, events; |
| | 281 | struct fio_file *f; |
| | 282 | struct io_u *io_u; |
| | 283 | |
| | 284 | /* |
| | 285 | * Fill in the file descriptors |
| | 286 | */ |
| | 287 | for_each_file(td, f, i) { |
| | 288 | /* |
| | 289 | * don't block for min events == 0 |
| | 290 | */ |
| | 291 | if (!min) |
| | 292 | sd->fd_flags[i] = fio_set_fd_nonblocking(f->fd, "sg"); |
| | 293 | else |
| | 294 | sd->fd_flags[i] = -1; |
| | 295 | |
| | 296 | sd->pfds[i].fd = f->fd; |
| | 297 | sd->pfds[i].events = POLLIN; |
| | 298 | } |
| | 299 | |
| | 300 | /* |
| | 301 | ** There are two counters here: |
| | 302 | ** - number of SCSI commands completed |
| | 303 | ** - number of io_us completed |
| | 304 | ** |
| | 305 | ** These are the same with reads and writes, but |
| | 306 | ** could differ with trim/unmap commands because |
| | 307 | ** a single unmap can include multiple io_us |
| | 308 | */ |
| | 309 | |
| | 310 | while (left > 0) { |
| | 311 | char *p; |
| | 312 | |
| | 313 | dprint(FD_IO, "sgio_getevents: sd %p: min=%d, max=%d, left=%d\n", sd, min, max, left); |
| | 314 | |
| | 315 | do { |
| | 316 | if (!min) |
| | 317 | break; |
| | 318 | |
| | 319 | ret = poll(sd->pfds, td->o.nr_files, -1); |
| | 320 | if (ret < 0) { |
| | 321 | if (!r) |
| | 322 | r = -errno; |
| | 323 | td_verror(td, errno, "poll"); |
| | 324 | break; |
| | 325 | } else if (!ret) |
| | 326 | continue; |
| | 327 | |
| | 328 | if (pollin_events(sd->pfds, td->o.nr_files)) |
| | 329 | break; |
| | 330 | } while (1); |
| | 331 | |
| | 332 | if (r < 0) |
| | 333 | break; |
| | 334 | |
| | 335 | re_read: |
| | 336 | p = buf; |
| | 337 | events = 0; |
| | 338 | for_each_file(td, f, i) { |
| | 339 | for (eventNum = 0; eventNum < left; eventNum++) { |
| | 340 | ret = sg_fd_read(f->fd, p, sizeof(struct sg_io_hdr)); |
| | 341 | dprint(FD_IO, "sgio_getevents: sg_fd_read ret: %d\n", ret); |
| | 342 | if (ret) { |
| | 343 | r = -ret; |
| | 344 | td_verror(td, r, "sg_read"); |
| | 345 | break; |
| | 346 | } |
| | 347 | io_u = ((struct sg_io_hdr *)p)->usr_ptr; |
| | 348 | if (io_u->ddir == DDIR_TRIM) { |
| | 349 | events += sd->trim_queues[io_u->index]->unmap_range_count; |
| | 350 | eventNum += sd->trim_queues[io_u->index]->unmap_range_count - 1; |
| | 351 | } else |
| | 352 | events++; |
| | 353 | |
| | 354 | p += sizeof(struct sg_io_hdr); |
| | 355 | dprint(FD_IO, "sgio_getevents: events: %d, eventNum: %d, left: %d\n", events, eventNum, left); |
| | 356 | } |
| | 357 | } |
| | 358 | |
| | 359 | if (r < 0 && !events) |
| | 360 | break; |
| | 361 | if (!events) { |
| | 362 | usleep(1000); |
| | 363 | goto re_read; |
| | 364 | } |
| | 365 | |
| | 366 | left -= events; |
| | 367 | r += events; |
| | 368 | |
| | 369 | for (i = 0; i < events; i++) { |
| | 370 | struct sg_io_hdr *hdr = (struct sg_io_hdr *) buf + i; |
| | 371 | sd->events[i + trims] = hdr->usr_ptr; |
| | 372 | io_u = (struct io_u *)(hdr->usr_ptr); |
| | 373 | |
| | 374 | if (hdr->info & SG_INFO_CHECK) { |
| | 375 | /* record if an io error occurred, ignore resid */ |
| | 376 | memcpy(&io_u->hdr, hdr, sizeof(struct sg_io_hdr)); |
| | 377 | sd->events[i + trims]->error = EIO; |
| | 378 | } |
| | 379 | |
| | 380 | if (io_u->ddir == DDIR_TRIM) { |
| | 381 | struct sgio_trim *st = sd->trim_queues[io_u->index]; |
| | 382 | #ifdef FIO_SGIO_DEBUG |
| | 383 | assert(st->trim_io_us[0] == io_u); |
| | 384 | assert(sd->trim_queue_map[io_u->index] == io_u->index); |
| | 385 | dprint(FD_IO, "sgio_getevents: reaping %d io_us from trim queue %d\n", st->unmap_range_count, io_u->index); |
| | 386 | dprint(FD_IO, "sgio_getevents: reaped io_u %d and stored in events[%d]\n", io_u->index, i+trims); |
| | 387 | #endif |
| | 388 | for (j = 1; j < st->unmap_range_count; j++) { |
| | 389 | ++trims; |
| | 390 | sd->events[i + trims] = st->trim_io_us[j]; |
| | 391 | #ifdef FIO_SGIO_DEBUG |
| | 392 | dprint(FD_IO, "sgio_getevents: reaped io_u %d and stored in events[%d]\n", st->trim_io_us[j]->index, i+trims); |
| | 393 | assert(sd->trim_queue_map[st->trim_io_us[j]->index] == io_u->index); |
| | 394 | #endif |
| | 395 | if (hdr->info & SG_INFO_CHECK) { |
| | 396 | /* record if an io error occurred, ignore resid */ |
| | 397 | memcpy(&st->trim_io_us[j]->hdr, hdr, sizeof(struct sg_io_hdr)); |
| | 398 | sd->events[i + trims]->error = EIO; |
| | 399 | } |
| | 400 | } |
| | 401 | events -= st->unmap_range_count - 1; |
| | 402 | st->unmap_range_count = 0; |
| | 403 | } |
| | 404 | } |
| | 405 | } |
| | 406 | |
| | 407 | if (!min) { |
| | 408 | for_each_file(td, f, i) { |
| | 409 | if (sd->fd_flags[i] == -1) |
| | 410 | continue; |
| | 411 | |
| | 412 | if (fcntl(f->fd, F_SETFL, sd->fd_flags[i]) < 0) |
| | 413 | log_err("fio: sg failed to restore fcntl flags: %s\n", strerror(errno)); |
| | 414 | } |
| | 415 | } |
| | 416 | |
| | 417 | return r; |
| | 418 | } |
| | 419 | |
| | 420 | static enum fio_q_status fio_sgio_ioctl_doio(struct thread_data *td, |
| | 421 | struct fio_file *f, |
| | 422 | struct io_u *io_u) |
| | 423 | { |
| | 424 | struct sgio_data *sd = td->io_ops_data; |
| | 425 | struct sg_io_hdr *hdr = &io_u->hdr; |
| | 426 | int ret; |
| | 427 | |
| | 428 | sd->events[0] = io_u; |
| | 429 | |
| | 430 | ret = ioctl(f->fd, SG_IO, hdr); |
| | 431 | if (ret < 0) |
| | 432 | return ret; |
| | 433 | |
| | 434 | /* record if an io error occurred */ |
| | 435 | if (hdr->info & SG_INFO_CHECK) |
| | 436 | io_u->error = EIO; |
| | 437 | |
| | 438 | return FIO_Q_COMPLETED; |
| | 439 | } |
| | 440 | |
| | 441 | static enum fio_q_status fio_sgio_rw_doio(struct thread_data *td, |
| | 442 | struct fio_file *f, |
| | 443 | struct io_u *io_u, int do_sync) |
| | 444 | { |
| | 445 | struct sg_io_hdr *hdr = &io_u->hdr; |
| | 446 | int ret; |
| | 447 | |
| | 448 | ret = write(f->fd, hdr, sizeof(*hdr)); |
| | 449 | if (ret < 0) |
| | 450 | return ret; |
| | 451 | |
| | 452 | if (do_sync) { |
| | 453 | /* |
| | 454 | * We can't just read back the first command that completes |
| | 455 | * and assume it's the one we need, it could be any command |
| | 456 | * that is inflight. |
| | 457 | */ |
| | 458 | do { |
| | 459 | struct io_u *__io_u; |
| | 460 | |
| | 461 | ret = read(f->fd, hdr, sizeof(*hdr)); |
| | 462 | if (ret < 0) |
| | 463 | return ret; |
| | 464 | |
| | 465 | __io_u = hdr->usr_ptr; |
| | 466 | |
| | 467 | /* record if an io error occurred */ |
| | 468 | if (hdr->info & SG_INFO_CHECK) |
| | 469 | __io_u->error = EIO; |
| | 470 | |
| | 471 | if (__io_u == io_u) |
| | 472 | break; |
| | 473 | |
| | 474 | if (io_u_sync_complete(td, __io_u)) { |
| | 475 | ret = -1; |
| | 476 | break; |
| | 477 | } |
| | 478 | } while (1); |
| | 479 | |
| | 480 | return FIO_Q_COMPLETED; |
| | 481 | } |
| | 482 | |
| | 483 | return FIO_Q_QUEUED; |
| | 484 | } |
| | 485 | |
| | 486 | static enum fio_q_status fio_sgio_doio(struct thread_data *td, |
| | 487 | struct io_u *io_u, int do_sync) |
| | 488 | { |
| | 489 | struct fio_file *f = io_u->file; |
| | 490 | enum fio_q_status ret; |
| | 491 | |
| | 492 | if (f->filetype == FIO_TYPE_BLOCK) { |
| | 493 | ret = fio_sgio_ioctl_doio(td, f, io_u); |
| | 494 | if (io_u->error) |
| | 495 | td_verror(td, io_u->error, __func__); |
| | 496 | } else { |
| | 497 | ret = fio_sgio_rw_doio(td, f, io_u, do_sync); |
| | 498 | if (io_u->error && do_sync) |
| | 499 | td_verror(td, io_u->error, __func__); |
| | 500 | } |
| | 501 | |
| | 502 | return ret; |
| | 503 | } |
| | 504 | |
| | 505 | static void fio_sgio_rw_lba(struct sg_io_hdr *hdr, unsigned long long lba, |
| | 506 | unsigned long long nr_blocks) |
| | 507 | { |
| | 508 | if (lba < MAX_10B_LBA) { |
| | 509 | sgio_set_be32((uint32_t) lba, &hdr->cmdp[2]); |
| | 510 | sgio_set_be16((uint16_t) nr_blocks, &hdr->cmdp[7]); |
| | 511 | } else { |
| | 512 | sgio_set_be64(lba, &hdr->cmdp[2]); |
| | 513 | sgio_set_be32((uint32_t) nr_blocks, &hdr->cmdp[10]); |
| | 514 | } |
| | 515 | |
| | 516 | return; |
| | 517 | } |
| | 518 | |
| | 519 | static int fio_sgio_prep(struct thread_data *td, struct io_u *io_u) |
| | 520 | { |
| | 521 | struct sg_io_hdr *hdr = &io_u->hdr; |
| | 522 | struct sg_options *o = td->eo; |
| | 523 | struct sgio_data *sd = td->io_ops_data; |
| | 524 | unsigned long long nr_blocks, lba; |
| | 525 | int offset; |
| | 526 | |
| | 527 | if (io_u->xfer_buflen & (sd->bs - 1)) { |
| | 528 | log_err("read/write not sector aligned\n"); |
| | 529 | return EINVAL; |
| | 530 | } |
| | 531 | |
| | 532 | nr_blocks = io_u->xfer_buflen / sd->bs; |
| | 533 | lba = io_u->offset / sd->bs; |
| | 534 | |
| | 535 | if (io_u->ddir == DDIR_READ) { |
| | 536 | sgio_hdr_init(sd, hdr, io_u, 1); |
| | 537 | |
| | 538 | hdr->dxfer_direction = SG_DXFER_FROM_DEV; |
| | 539 | if (lba < MAX_10B_LBA) |
| | 540 | hdr->cmdp[0] = 0x28; // read(10) |
| | 541 | else |
| | 542 | hdr->cmdp[0] = 0x88; // read(16) |
| | 543 | |
| | 544 | if (o->hipri) |
| | 545 | hdr->flags |= SGV4_FLAG_HIPRI; |
| | 546 | if (o->readfua) |
| | 547 | hdr->cmdp[1] |= 0x08; |
| | 548 | |
| | 549 | fio_sgio_rw_lba(hdr, lba, nr_blocks); |
| | 550 | |
| | 551 | } else if (io_u->ddir == DDIR_WRITE) { |
| | 552 | sgio_hdr_init(sd, hdr, io_u, 1); |
| | 553 | |
| | 554 | hdr->dxfer_direction = SG_DXFER_TO_DEV; |
| | 555 | switch(o->write_mode) { |
| | 556 | case FIO_SG_WRITE: |
| | 557 | if (lba < MAX_10B_LBA) |
| | 558 | hdr->cmdp[0] = 0x2a; // write(10) |
| | 559 | else |
| | 560 | hdr->cmdp[0] = 0x8a; // write(16) |
| | 561 | if (o->hipri) |
| | 562 | hdr->flags |= SGV4_FLAG_HIPRI; |
| | 563 | if (o->writefua) |
| | 564 | hdr->cmdp[1] |= 0x08; |
| | 565 | break; |
| | 566 | case FIO_SG_WRITE_VERIFY: |
| | 567 | if (lba < MAX_10B_LBA) |
| | 568 | hdr->cmdp[0] = 0x2e; // write and verify(10) |
| | 569 | else |
| | 570 | hdr->cmdp[0] = 0x8e; // write and verify(16) |
| | 571 | break; |
| | 572 | // BYTCHK is disabled by virtue of the memset in sgio_hdr_init |
| | 573 | case FIO_SG_WRITE_SAME: |
| | 574 | hdr->dxfer_len = sd->bs; |
| | 575 | if (lba < MAX_10B_LBA) |
| | 576 | hdr->cmdp[0] = 0x41; // write same(10) |
| | 577 | else |
| | 578 | hdr->cmdp[0] = 0x93; // write same(16) |
| | 579 | break; |
| | 580 | }; |
| | 581 | |
| | 582 | fio_sgio_rw_lba(hdr, lba, nr_blocks); |
| | 583 | |
| | 584 | } else if (io_u->ddir == DDIR_TRIM) { |
| | 585 | struct sgio_trim *st; |
| | 586 | |
| | 587 | if (sd->current_queue == -1) { |
| | 588 | sgio_hdr_init(sd, hdr, io_u, 0); |
| | 589 | |
| | 590 | hdr->cmd_len = 10; |
| | 591 | hdr->dxfer_direction = SG_DXFER_TO_DEV; |
| | 592 | hdr->cmdp[0] = 0x42; // unmap |
| | 593 | sd->current_queue = io_u->index; |
| | 594 | st = sd->trim_queues[sd->current_queue]; |
| | 595 | hdr->dxferp = st->unmap_param; |
| | 596 | #ifdef FIO_SGIO_DEBUG |
| | 597 | assert(sd->trim_queues[io_u->index]->unmap_range_count == 0); |
| | 598 | dprint(FD_IO, "sg: creating new queue based on io_u %d\n", io_u->index); |
| | 599 | #endif |
| | 600 | } |
| | 601 | else |
| | 602 | st = sd->trim_queues[sd->current_queue]; |
| | 603 | |
| | 604 | dprint(FD_IO, "sg: adding io_u %d to trim queue %d\n", io_u->index, sd->current_queue); |
| | 605 | st->trim_io_us[st->unmap_range_count] = io_u; |
| | 606 | #ifdef FIO_SGIO_DEBUG |
| | 607 | sd->trim_queue_map[io_u->index] = sd->current_queue; |
| | 608 | #endif |
| | 609 | |
| | 610 | offset = 8 + 16 * st->unmap_range_count; |
| | 611 | sgio_set_be64(lba, &st->unmap_param[offset]); |
| | 612 | sgio_set_be32((uint32_t) nr_blocks, &st->unmap_param[offset + 8]); |
| | 613 | |
| | 614 | st->unmap_range_count++; |
| | 615 | |
| | 616 | } else if (ddir_sync(io_u->ddir)) { |
| | 617 | sgio_hdr_init(sd, hdr, io_u, 0); |
| | 618 | hdr->dxfer_direction = SG_DXFER_NONE; |
| | 619 | if (lba < MAX_10B_LBA) |
| | 620 | hdr->cmdp[0] = 0x35; // synccache(10) |
| | 621 | else |
| | 622 | hdr->cmdp[0] = 0x91; // synccache(16) |
| | 623 | } else |
| | 624 | assert(0); |
| | 625 | |
| | 626 | return 0; |
| | 627 | } |
| | 628 | |
| | 629 | static void fio_sgio_unmap_setup(struct sg_io_hdr *hdr, struct sgio_trim *st) |
| | 630 | { |
| | 631 | uint16_t cnt = st->unmap_range_count * 16; |
| | 632 | |
| | 633 | hdr->dxfer_len = cnt + 8; |
| | 634 | sgio_set_be16(cnt + 8, &hdr->cmdp[7]); |
| | 635 | sgio_set_be16(cnt + 6, st->unmap_param); |
| | 636 | sgio_set_be16(cnt, &st->unmap_param[2]); |
| | 637 | |
| | 638 | return; |
| | 639 | } |
| | 640 | |
| | 641 | static enum fio_q_status fio_sgio_queue(struct thread_data *td, |
| | 642 | struct io_u *io_u) |
| | 643 | { |
| | 644 | struct sg_io_hdr *hdr = &io_u->hdr; |
| | 645 | struct sgio_data *sd = td->io_ops_data; |
| | 646 | int ret, do_sync = 0; |
| | 647 | |
| | 648 | fio_ro_check(td, io_u); |
| | 649 | |
| | 650 | if (sgio_unbuffered(td) || ddir_sync(io_u->ddir)) |
| | 651 | do_sync = 1; |
| | 652 | |
| | 653 | if (io_u->ddir == DDIR_TRIM) { |
| | 654 | if (do_sync || io_u->file->filetype == FIO_TYPE_BLOCK) { |
| | 655 | struct sgio_trim *st = sd->trim_queues[sd->current_queue]; |
| | 656 | |
| | 657 | /* finish cdb setup for unmap because we are |
| | 658 | ** doing unmap commands synchronously */ |
| | 659 | #ifdef FIO_SGIO_DEBUG |
| | 660 | assert(st->unmap_range_count == 1); |
| | 661 | assert(io_u == st->trim_io_us[0]); |
| | 662 | #endif |
| | 663 | hdr = &io_u->hdr; |
| | 664 | |
| | 665 | fio_sgio_unmap_setup(hdr, st); |
| | 666 | |
| | 667 | st->unmap_range_count = 0; |
| | 668 | sd->current_queue = -1; |
| | 669 | } else |
| | 670 | /* queue up trim ranges and submit in commit() */ |
| | 671 | return FIO_Q_QUEUED; |
| | 672 | } |
| | 673 | |
| | 674 | ret = fio_sgio_doio(td, io_u, do_sync); |
| | 675 | |
| | 676 | if (ret < 0) |
| | 677 | io_u->error = errno; |
| | 678 | else if (hdr->status) { |
| | 679 | io_u->resid = hdr->resid; |
| | 680 | io_u->error = EIO; |
| | 681 | } else if (td->io_ops->commit != NULL) { |
| | 682 | if (do_sync && !ddir_sync(io_u->ddir)) { |
| | 683 | io_u_mark_submit(td, 1); |
| | 684 | io_u_mark_complete(td, 1); |
| | 685 | } else if (io_u->ddir == DDIR_READ || io_u->ddir == DDIR_WRITE) { |
| | 686 | io_u_mark_submit(td, 1); |
| | 687 | io_u_queued(td, io_u); |
| | 688 | } |
| | 689 | } |
| | 690 | |
| | 691 | if (io_u->error) { |
| | 692 | td_verror(td, io_u->error, "xfer"); |
| | 693 | return FIO_Q_COMPLETED; |
| | 694 | } |
| | 695 | |
| | 696 | return ret; |
| | 697 | } |
| | 698 | |
| | 699 | static int fio_sgio_commit(struct thread_data *td) |
| | 700 | { |
| | 701 | struct sgio_data *sd = td->io_ops_data; |
| | 702 | struct sgio_trim *st; |
| | 703 | struct io_u *io_u; |
| | 704 | struct sg_io_hdr *hdr; |
| | 705 | struct timespec now; |
| | 706 | unsigned int i; |
| | 707 | int ret; |
| | 708 | |
| | 709 | if (sd->current_queue == -1) |
| | 710 | return 0; |
| | 711 | |
| | 712 | st = sd->trim_queues[sd->current_queue]; |
| | 713 | io_u = st->trim_io_us[0]; |
| | 714 | hdr = &io_u->hdr; |
| | 715 | |
| | 716 | fio_sgio_unmap_setup(hdr, st); |
| | 717 | |
| | 718 | sd->current_queue = -1; |
| | 719 | |
| | 720 | ret = fio_sgio_rw_doio(td, io_u->file, io_u, 0); |
| | 721 | |
| | 722 | if (ret < 0 || hdr->status) { |
| | 723 | int error; |
| | 724 | |
| | 725 | if (ret < 0) |
| | 726 | error = errno; |
| | 727 | else { |
| | 728 | error = EIO; |
| | 729 | ret = -EIO; |
| | 730 | } |
| | 731 | |
| | 732 | for (i = 0; i < st->unmap_range_count; i++) { |
| | 733 | st->trim_io_us[i]->error = error; |
| | 734 | clear_io_u(td, st->trim_io_us[i]); |
| | 735 | if (hdr->status) |
| | 736 | st->trim_io_us[i]->resid = hdr->resid; |
| | 737 | } |
| | 738 | |
| | 739 | td_verror(td, error, "xfer"); |
| | 740 | return ret; |
| | 741 | } |
| | 742 | |
| | 743 | if (fio_fill_issue_time(td)) { |
| | 744 | fio_gettime(&now, NULL); |
| | 745 | for (i = 0; i < st->unmap_range_count; i++) { |
| | 746 | memcpy(&st->trim_io_us[i]->issue_time, &now, sizeof(now)); |
| | 747 | io_u_queued(td, io_u); |
| | 748 | } |
| | 749 | } |
| | 750 | io_u_mark_submit(td, st->unmap_range_count); |
| | 751 | |
| | 752 | return 0; |
| | 753 | } |
| | 754 | |
| | 755 | static struct io_u *fio_sgio_event(struct thread_data *td, int event) |
| | 756 | { |
| | 757 | struct sgio_data *sd = td->io_ops_data; |
| | 758 | |
| | 759 | return sd->events[event]; |
| | 760 | } |
| | 761 | |
| | 762 | static int fio_sgio_read_capacity(struct thread_data *td, unsigned int *bs, |
| | 763 | unsigned long long *max_lba) |
| | 764 | { |
| | 765 | /* |
| | 766 | * need to do read capacity operation w/o benefit of sd or |
| | 767 | * io_u structures, which are not initialized until later. |
| | 768 | */ |
| | 769 | struct sg_io_hdr hdr; |
| | 770 | unsigned long long hlba; |
| | 771 | unsigned int blksz = 0; |
| | 772 | unsigned char cmd[16]; |
| | 773 | unsigned char sb[64]; |
| | 774 | unsigned char buf[32]; // read capacity return |
| | 775 | int ret; |
| | 776 | int fd = -1; |
| | 777 | |
| | 778 | struct fio_file *f = td->files[0]; |
| | 779 | |
| | 780 | /* open file independent of rest of application */ |
| | 781 | fd = open(f->file_name, O_RDONLY); |
| | 782 | if (fd < 0) |
| | 783 | return -errno; |
| | 784 | |
| | 785 | memset(&hdr, 0, sizeof(hdr)); |
| | 786 | memset(cmd, 0, sizeof(cmd)); |
| | 787 | memset(sb, 0, sizeof(sb)); |
| | 788 | memset(buf, 0, sizeof(buf)); |
| | 789 | |
| | 790 | /* First let's try a 10 byte read capacity. */ |
| | 791 | hdr.interface_id = 'S'; |
| | 792 | hdr.cmdp = cmd; |
| | 793 | hdr.cmd_len = 10; |
| | 794 | hdr.sbp = sb; |
| | 795 | hdr.mx_sb_len = sizeof(sb); |
| | 796 | hdr.timeout = SCSI_TIMEOUT_MS; |
| | 797 | hdr.cmdp[0] = 0x25; // Read Capacity(10) |
| | 798 | hdr.dxfer_direction = SG_DXFER_FROM_DEV; |
| | 799 | hdr.dxferp = buf; |
| | 800 | hdr.dxfer_len = sizeof(buf); |
| | 801 | |
| | 802 | ret = ioctl(fd, SG_IO, &hdr); |
| | 803 | if (ret < 0) { |
| | 804 | close(fd); |
| | 805 | return ret; |
| | 806 | } |
| | 807 | |
| | 808 | if (hdr.info & SG_INFO_CHECK) { |
| | 809 | /* RCAP(10) might be unsupported by device. Force RCAP(16) */ |
| | 810 | hlba = MAX_10B_LBA; |
| | 811 | } else { |
| | 812 | blksz = sgio_get_be32(&buf[4]); |
| | 813 | hlba = sgio_get_be32(buf); |
| | 814 | } |
| | 815 | |
| | 816 | /* |
| | 817 | * If max lba masked by MAX_10B_LBA equals MAX_10B_LBA, |
| | 818 | * then need to retry with 16 byte Read Capacity command. |
| | 819 | */ |
| | 820 | if (hlba == MAX_10B_LBA) { |
| | 821 | hdr.cmd_len = 16; |
| | 822 | hdr.cmdp[0] = 0x9e; // service action |
| | 823 | hdr.cmdp[1] = 0x10; // Read Capacity(16) |
| | 824 | sgio_set_be32(sizeof(buf), &hdr.cmdp[10]); |
| | 825 | |
| | 826 | hdr.dxfer_direction = SG_DXFER_FROM_DEV; |
| | 827 | hdr.dxferp = buf; |
| | 828 | hdr.dxfer_len = sizeof(buf); |
| | 829 | |
| | 830 | ret = ioctl(fd, SG_IO, &hdr); |
| | 831 | if (ret < 0) { |
| | 832 | close(fd); |
| | 833 | return ret; |
| | 834 | } |
| | 835 | |
| | 836 | /* record if an io error occurred */ |
| | 837 | if (hdr.info & SG_INFO_CHECK) |
| | 838 | td_verror(td, EIO, "fio_sgio_read_capacity"); |
| | 839 | |
| | 840 | blksz = sgio_get_be32(&buf[8]); |
| | 841 | hlba = sgio_get_be64(buf); |
| | 842 | } |
| | 843 | |
| | 844 | if (blksz) { |
| | 845 | *bs = blksz; |
| | 846 | *max_lba = hlba; |
| | 847 | ret = 0; |
| | 848 | } else { |
| | 849 | ret = EIO; |
| | 850 | } |
| | 851 | |
| | 852 | close(fd); |
| | 853 | return ret; |
| | 854 | } |
| | 855 | |
| | 856 | static void fio_sgio_cleanup(struct thread_data *td) |
| | 857 | { |
| | 858 | struct sgio_data *sd = td->io_ops_data; |
| | 859 | int i; |
| | 860 | |
| | 861 | if (sd) { |
| | 862 | free(sd->events); |
| | 863 | free(sd->cmds); |
| | 864 | free(sd->fd_flags); |
| | 865 | free(sd->pfds); |
| | 866 | free(sd->sgbuf); |
| | 867 | #ifdef FIO_SGIO_DEBUG |
| | 868 | free(sd->trim_queue_map); |
| | 869 | #endif |
| | 870 | |
| | 871 | for (i = 0; i < td->o.iodepth; i++) { |
| | 872 | free(sd->trim_queues[i]->unmap_param); |
| | 873 | free(sd->trim_queues[i]->trim_io_us); |
| | 874 | free(sd->trim_queues[i]); |
| | 875 | } |
| | 876 | |
| | 877 | free(sd->trim_queues); |
| | 878 | free(sd); |
| | 879 | } |
| | 880 | } |
| | 881 | |
| | 882 | static int fio_sgio_init(struct thread_data *td) |
| | 883 | { |
| | 884 | struct sgio_data *sd; |
| | 885 | struct sgio_trim *st; |
| | 886 | struct sg_io_hdr *h3p; |
| | 887 | int i; |
| | 888 | |
| | 889 | sd = calloc(1, sizeof(*sd)); |
| | 890 | sd->cmds = calloc(td->o.iodepth, sizeof(struct sgio_cmd)); |
| | 891 | sd->sgbuf = calloc(td->o.iodepth, sizeof(struct sg_io_hdr)); |
| | 892 | sd->events = calloc(td->o.iodepth, sizeof(struct io_u *)); |
| | 893 | sd->pfds = calloc(td->o.nr_files, sizeof(struct pollfd)); |
| | 894 | sd->fd_flags = calloc(td->o.nr_files, sizeof(int)); |
| | 895 | sd->type_checked = 0; |
| | 896 | |
| | 897 | sd->trim_queues = calloc(td->o.iodepth, sizeof(struct sgio_trim *)); |
| | 898 | sd->current_queue = -1; |
| | 899 | #ifdef FIO_SGIO_DEBUG |
| | 900 | sd->trim_queue_map = calloc(td->o.iodepth, sizeof(int)); |
| | 901 | #endif |
| | 902 | for (i = 0, h3p = sd->sgbuf; i < td->o.iodepth; i++, ++h3p) { |
| | 903 | sd->trim_queues[i] = calloc(1, sizeof(struct sgio_trim)); |
| | 904 | st = sd->trim_queues[i]; |
| | 905 | st->unmap_param = calloc(td->o.iodepth + 1, sizeof(char[16])); |
| | 906 | st->unmap_range_count = 0; |
| | 907 | st->trim_io_us = calloc(td->o.iodepth, sizeof(struct io_u *)); |
| | 908 | h3p->interface_id = 'S'; |
| | 909 | } |
| | 910 | |
| | 911 | td->io_ops_data = sd; |
| | 912 | |
| | 913 | /* |
| | 914 | * we want to do it, regardless of whether odirect is set or not |
| | 915 | */ |
| | 916 | td->o.override_sync = 1; |
| | 917 | return 0; |
| | 918 | } |
| | 919 | |
| | 920 | static int fio_sgio_type_check(struct thread_data *td, struct fio_file *f) |
| | 921 | { |
| | 922 | struct sgio_data *sd = td->io_ops_data; |
| | 923 | unsigned int bs = 0; |
| | 924 | unsigned long long max_lba = 0; |
| | 925 | |
| | 926 | if (f->filetype == FIO_TYPE_BLOCK) { |
| | 927 | if (ioctl(f->fd, BLKSSZGET, &bs) < 0) { |
| | 928 | td_verror(td, errno, "ioctl"); |
| | 929 | return 1; |
| | 930 | } |
| | 931 | } else if (f->filetype == FIO_TYPE_CHAR) { |
| | 932 | int version, ret; |
| | 933 | |
| | 934 | if (ioctl(f->fd, SG_GET_VERSION_NUM, &version) < 0) { |
| | 935 | td_verror(td, errno, "ioctl"); |
| | 936 | return 1; |
| | 937 | } |
| | 938 | |
| | 939 | ret = fio_sgio_read_capacity(td, &bs, &max_lba); |
| | 940 | if (ret) { |
| | 941 | td_verror(td, td->error, "fio_sgio_read_capacity"); |
| | 942 | log_err("ioengine sg unable to read capacity successfully\n"); |
| | 943 | return 1; |
| | 944 | } |
| | 945 | } else { |
| | 946 | td_verror(td, EINVAL, "wrong file type"); |
| | 947 | log_err("ioengine sg only works on block or character devices\n"); |
| | 948 | return 1; |
| | 949 | } |
| | 950 | |
| | 951 | sd->bs = bs; |
| | 952 | // Determine size of commands needed based on max_lba |
| | 953 | if (max_lba >= MAX_10B_LBA) { |
| | 954 | dprint(FD_IO, "sgio_type_check: using 16 byte read/write " |
| | 955 | "commands for lba above 0x%016llx/0x%016llx\n", |
| | 956 | MAX_10B_LBA, max_lba); |
| | 957 | } |
| | 958 | |
| | 959 | if (f->filetype == FIO_TYPE_BLOCK) { |
| | 960 | td->io_ops->getevents = NULL; |
| | 961 | td->io_ops->event = NULL; |
| | 962 | td->io_ops->commit = NULL; |
| | 963 | /* |
| | 964 | ** Setting these functions to null may cause problems |
| | 965 | ** with filename=/dev/sda:/dev/sg0 since we are only |
| | 966 | ** considering a single file |
| | 967 | */ |
| | 968 | } |
| | 969 | sd->type_checked = 1; |
| | 970 | |
| | 971 | return 0; |
| | 972 | } |
| | 973 | |
| | 974 | static int fio_sgio_open(struct thread_data *td, struct fio_file *f) |
| | 975 | { |
| | 976 | struct sgio_data *sd = td->io_ops_data; |
| | 977 | int ret; |
| | 978 | |
| | 979 | ret = generic_open_file(td, f); |
| | 980 | if (ret) |
| | 981 | return ret; |
| | 982 | |
| | 983 | if (sd && !sd->type_checked && fio_sgio_type_check(td, f)) { |
| | 984 | ret = generic_close_file(td, f); |
| | 985 | return ret; |
| | 986 | } |
| | 987 | |
| | 988 | return 0; |
| | 989 | } |
| | 990 | |
| | 991 | /* |
| | 992 | * Build an error string with details about the driver, host or scsi |
| | 993 | * error contained in the sg header Caller will use as necessary. |
| | 994 | */ |
| | 995 | static char *fio_sgio_errdetails(struct io_u *io_u) |
| | 996 | { |
| | 997 | struct sg_io_hdr *hdr = &io_u->hdr; |
| | 998 | #define MAXERRDETAIL 1024 |
| | 999 | #define MAXMSGCHUNK 128 |
| | 1000 | char *msg, msgchunk[MAXMSGCHUNK]; |
| | 1001 | int i; |
| | 1002 | |
| | 1003 | msg = calloc(1, MAXERRDETAIL); |
| | 1004 | strcpy(msg, ""); |
| | 1005 | |
| | 1006 | /* |
| | 1007 | * can't seem to find sg_err.h, so I'll just echo the define values |
| | 1008 | * so others can search on internet to find clearer clues of meaning. |
| | 1009 | */ |
| | 1010 | if (hdr->info & SG_INFO_CHECK) { |
| | 1011 | if (hdr->host_status) { |
| | 1012 | snprintf(msgchunk, MAXMSGCHUNK, "SG Host Status: 0x%02x; ", hdr->host_status); |
| | 1013 | strlcat(msg, msgchunk, MAXERRDETAIL); |
| | 1014 | switch (hdr->host_status) { |
| | 1015 | case 0x01: |
| | 1016 | strlcat(msg, "SG_ERR_DID_NO_CONNECT", MAXERRDETAIL); |
| | 1017 | break; |
| | 1018 | case 0x02: |
| | 1019 | strlcat(msg, "SG_ERR_DID_BUS_BUSY", MAXERRDETAIL); |
| | 1020 | break; |
| | 1021 | case 0x03: |
| | 1022 | strlcat(msg, "SG_ERR_DID_TIME_OUT", MAXERRDETAIL); |
| | 1023 | break; |
| | 1024 | case 0x04: |
| | 1025 | strlcat(msg, "SG_ERR_DID_BAD_TARGET", MAXERRDETAIL); |
| | 1026 | break; |
| | 1027 | case 0x05: |
| | 1028 | strlcat(msg, "SG_ERR_DID_ABORT", MAXERRDETAIL); |
| | 1029 | break; |
| | 1030 | case 0x06: |
| | 1031 | strlcat(msg, "SG_ERR_DID_PARITY", MAXERRDETAIL); |
| | 1032 | break; |
| | 1033 | case 0x07: |
| | 1034 | strlcat(msg, "SG_ERR_DID_ERROR (internal error)", MAXERRDETAIL); |
| | 1035 | break; |
| | 1036 | case 0x08: |
| | 1037 | strlcat(msg, "SG_ERR_DID_RESET", MAXERRDETAIL); |
| | 1038 | break; |
| | 1039 | case 0x09: |
| | 1040 | strlcat(msg, "SG_ERR_DID_BAD_INTR (unexpected)", MAXERRDETAIL); |
| | 1041 | break; |
| | 1042 | case 0x0a: |
| | 1043 | strlcat(msg, "SG_ERR_DID_PASSTHROUGH", MAXERRDETAIL); |
| | 1044 | break; |
| | 1045 | case 0x0b: |
| | 1046 | strlcat(msg, "SG_ERR_DID_SOFT_ERROR (driver retry?)", MAXERRDETAIL); |
| | 1047 | break; |
| | 1048 | case 0x0c: |
| | 1049 | strlcat(msg, "SG_ERR_DID_IMM_RETRY", MAXERRDETAIL); |
| | 1050 | break; |
| | 1051 | case 0x0d: |
| | 1052 | strlcat(msg, "SG_ERR_DID_REQUEUE", MAXERRDETAIL); |
| | 1053 | break; |
| | 1054 | case 0x0e: |
| | 1055 | strlcat(msg, "SG_ERR_DID_TRANSPORT_DISRUPTED", MAXERRDETAIL); |
| | 1056 | break; |
| | 1057 | case 0x0f: |
| | 1058 | strlcat(msg, "SG_ERR_DID_TRANSPORT_FAILFAST", MAXERRDETAIL); |
| | 1059 | break; |
| | 1060 | case 0x10: |
| | 1061 | strlcat(msg, "SG_ERR_DID_TARGET_FAILURE", MAXERRDETAIL); |
| | 1062 | break; |
| | 1063 | case 0x11: |
| | 1064 | strlcat(msg, "SG_ERR_DID_NEXUS_FAILURE", MAXERRDETAIL); |
| | 1065 | break; |
| | 1066 | case 0x12: |
| | 1067 | strlcat(msg, "SG_ERR_DID_ALLOC_FAILURE", MAXERRDETAIL); |
| | 1068 | break; |
| | 1069 | case 0x13: |
| | 1070 | strlcat(msg, "SG_ERR_DID_MEDIUM_ERROR", MAXERRDETAIL); |
| | 1071 | break; |
| | 1072 | default: |
| | 1073 | strlcat(msg, "Unknown", MAXERRDETAIL); |
| | 1074 | break; |
| | 1075 | } |
| | 1076 | strlcat(msg, ". ", MAXERRDETAIL); |
| | 1077 | } |
| | 1078 | if (hdr->driver_status) { |
| | 1079 | snprintf(msgchunk, MAXMSGCHUNK, "SG Driver Status: 0x%02x; ", hdr->driver_status); |
| | 1080 | strlcat(msg, msgchunk, MAXERRDETAIL); |
| | 1081 | switch (hdr->driver_status & 0x0F) { |
| | 1082 | case 0x01: |
| | 1083 | strlcat(msg, "SG_ERR_DRIVER_BUSY", MAXERRDETAIL); |
| | 1084 | break; |
| | 1085 | case 0x02: |
| | 1086 | strlcat(msg, "SG_ERR_DRIVER_SOFT", MAXERRDETAIL); |
| | 1087 | break; |
| | 1088 | case 0x03: |
| | 1089 | strlcat(msg, "SG_ERR_DRIVER_MEDIA", MAXERRDETAIL); |
| | 1090 | break; |
| | 1091 | case 0x04: |
| | 1092 | strlcat(msg, "SG_ERR_DRIVER_ERROR", MAXERRDETAIL); |
| | 1093 | break; |
| | 1094 | case 0x05: |
| | 1095 | strlcat(msg, "SG_ERR_DRIVER_INVALID", MAXERRDETAIL); |
| | 1096 | break; |
| | 1097 | case 0x06: |
| | 1098 | strlcat(msg, "SG_ERR_DRIVER_TIMEOUT", MAXERRDETAIL); |
| | 1099 | break; |
| | 1100 | case 0x07: |
| | 1101 | strlcat(msg, "SG_ERR_DRIVER_HARD", MAXERRDETAIL); |
| | 1102 | break; |
| | 1103 | case 0x08: |
| | 1104 | strlcat(msg, "SG_ERR_DRIVER_SENSE", MAXERRDETAIL); |
| | 1105 | break; |
| | 1106 | default: |
| | 1107 | strlcat(msg, "Unknown", MAXERRDETAIL); |
| | 1108 | break; |
| | 1109 | } |
| | 1110 | strlcat(msg, "; ", MAXERRDETAIL); |
| | 1111 | switch (hdr->driver_status & 0xF0) { |
| | 1112 | case 0x10: |
| | 1113 | strlcat(msg, "SG_ERR_SUGGEST_RETRY", MAXERRDETAIL); |
| | 1114 | break; |
| | 1115 | case 0x20: |
| | 1116 | strlcat(msg, "SG_ERR_SUGGEST_ABORT", MAXERRDETAIL); |
| | 1117 | break; |
| | 1118 | case 0x30: |
| | 1119 | strlcat(msg, "SG_ERR_SUGGEST_REMAP", MAXERRDETAIL); |
| | 1120 | break; |
| | 1121 | case 0x40: |
| | 1122 | strlcat(msg, "SG_ERR_SUGGEST_DIE", MAXERRDETAIL); |
| | 1123 | break; |
| | 1124 | case 0x80: |
| | 1125 | strlcat(msg, "SG_ERR_SUGGEST_SENSE", MAXERRDETAIL); |
| | 1126 | break; |
| | 1127 | } |
| | 1128 | strlcat(msg, ". ", MAXERRDETAIL); |
| | 1129 | } |
| | 1130 | if (hdr->status) { |
| | 1131 | snprintf(msgchunk, MAXMSGCHUNK, "SG SCSI Status: 0x%02x; ", hdr->status); |
| | 1132 | strlcat(msg, msgchunk, MAXERRDETAIL); |
| | 1133 | // SCSI 3 status codes |
| | 1134 | switch (hdr->status) { |
| | 1135 | case 0x02: |
| | 1136 | strlcat(msg, "CHECK_CONDITION", MAXERRDETAIL); |
| | 1137 | break; |
| | 1138 | case 0x04: |
| | 1139 | strlcat(msg, "CONDITION_MET", MAXERRDETAIL); |
| | 1140 | break; |
| | 1141 | case 0x08: |
| | 1142 | strlcat(msg, "BUSY", MAXERRDETAIL); |
| | 1143 | break; |
| | 1144 | case 0x10: |
| | 1145 | strlcat(msg, "INTERMEDIATE", MAXERRDETAIL); |
| | 1146 | break; |
| | 1147 | case 0x14: |
| | 1148 | strlcat(msg, "INTERMEDIATE_CONDITION_MET", MAXERRDETAIL); |
| | 1149 | break; |
| | 1150 | case 0x18: |
| | 1151 | strlcat(msg, "RESERVATION_CONFLICT", MAXERRDETAIL); |
| | 1152 | break; |
| | 1153 | case 0x22: |
| | 1154 | strlcat(msg, "COMMAND_TERMINATED", MAXERRDETAIL); |
| | 1155 | break; |
| | 1156 | case 0x28: |
| | 1157 | strlcat(msg, "TASK_SET_FULL", MAXERRDETAIL); |
| | 1158 | break; |
| | 1159 | case 0x30: |
| | 1160 | strlcat(msg, "ACA_ACTIVE", MAXERRDETAIL); |
| | 1161 | break; |
| | 1162 | case 0x40: |
| | 1163 | strlcat(msg, "TASK_ABORTED", MAXERRDETAIL); |
| | 1164 | break; |
| | 1165 | default: |
| | 1166 | strlcat(msg, "Unknown", MAXERRDETAIL); |
| | 1167 | break; |
| | 1168 | } |
| | 1169 | strlcat(msg, ". ", MAXERRDETAIL); |
| | 1170 | } |
| | 1171 | if (hdr->sb_len_wr) { |
| | 1172 | snprintf(msgchunk, MAXMSGCHUNK, "Sense Data (%d bytes):", hdr->sb_len_wr); |
| | 1173 | strlcat(msg, msgchunk, MAXERRDETAIL); |
| | 1174 | for (i = 0; i < hdr->sb_len_wr; i++) { |
| | 1175 | snprintf(msgchunk, MAXMSGCHUNK, " %02x", hdr->sbp[i]); |
| | 1176 | strlcat(msg, msgchunk, MAXERRDETAIL); |
| | 1177 | } |
| | 1178 | strlcat(msg, ". ", MAXERRDETAIL); |
| | 1179 | } |
| | 1180 | if (hdr->resid != 0) { |
| | 1181 | snprintf(msgchunk, MAXMSGCHUNK, "SG Driver: %d bytes out of %d not transferred. ", hdr->resid, hdr->dxfer_len); |
| | 1182 | strlcat(msg, msgchunk, MAXERRDETAIL); |
| | 1183 | } |
| | 1184 | if (hdr->cmdp) { |
| | 1185 | strlcat(msg, "cdb:", MAXERRDETAIL); |
| | 1186 | for (i = 0; i < hdr->cmd_len; i++) { |
| | 1187 | snprintf(msgchunk, MAXMSGCHUNK, " %02x", hdr->cmdp[i]); |
| | 1188 | strlcat(msg, msgchunk, MAXERRDETAIL); |
| | 1189 | } |
| | 1190 | strlcat(msg, ". ", MAXERRDETAIL); |
| | 1191 | if (io_u->ddir == DDIR_TRIM) { |
| | 1192 | unsigned char *param_list = hdr->dxferp; |
| | 1193 | strlcat(msg, "dxferp:", MAXERRDETAIL); |
| | 1194 | for (i = 0; i < hdr->dxfer_len; i++) { |
| | 1195 | snprintf(msgchunk, MAXMSGCHUNK, " %02x", param_list[i]); |
| | 1196 | strlcat(msg, msgchunk, MAXERRDETAIL); |
| | 1197 | } |
| | 1198 | strlcat(msg, ". ", MAXERRDETAIL); |
| | 1199 | } |
| | 1200 | } |
| | 1201 | } |
| | 1202 | |
| | 1203 | if (!(hdr->info & SG_INFO_CHECK) && !strlen(msg)) |
| | 1204 | snprintf(msg, MAXERRDETAIL, "%s", |
| | 1205 | "SG Driver did not report a Host, Driver or Device check"); |
| | 1206 | |
| | 1207 | return msg; |
| | 1208 | } |
| | 1209 | |
| | 1210 | /* |
| | 1211 | * get max file size from read capacity. |
| | 1212 | */ |
| | 1213 | static int fio_sgio_get_file_size(struct thread_data *td, struct fio_file *f) |
| | 1214 | { |
| | 1215 | /* |
| | 1216 | * get_file_size is being called even before sgio_init is |
| | 1217 | * called, so none of the sg_io structures are |
| | 1218 | * initialized in the thread_data yet. So we need to do the |
| | 1219 | * ReadCapacity without any of those helpers. One of the effects |
| | 1220 | * is that ReadCapacity may get called 4 times on each open: |
| | 1221 | * readcap(10) followed by readcap(16) if needed - just to get |
| | 1222 | * the file size after the init occurs - it will be called |
| | 1223 | * again when "type_check" is called during structure |
| | 1224 | * initialization I'm not sure how to prevent this little |
| | 1225 | * inefficiency. |
| | 1226 | */ |
| | 1227 | unsigned int bs = 0; |
| | 1228 | unsigned long long max_lba = 0; |
| | 1229 | int ret; |
| | 1230 | |
| | 1231 | if (fio_file_size_known(f)) |
| | 1232 | return 0; |
| | 1233 | |
| | 1234 | if (f->filetype != FIO_TYPE_BLOCK && f->filetype != FIO_TYPE_CHAR) { |
| | 1235 | td_verror(td, EINVAL, "wrong file type"); |
| | 1236 | log_err("ioengine sg only works on block or character devices\n"); |
| | 1237 | return 1; |
| | 1238 | } |
| | 1239 | |
| | 1240 | ret = fio_sgio_read_capacity(td, &bs, &max_lba); |
| | 1241 | if (ret ) { |
| | 1242 | td_verror(td, td->error, "fio_sgio_read_capacity"); |
| | 1243 | log_err("ioengine sg unable to successfully execute read capacity to get block size and maximum lba\n"); |
| | 1244 | return 1; |
| | 1245 | } |
| | 1246 | |
| | 1247 | f->real_file_size = (max_lba + 1) * bs; |
| | 1248 | fio_file_set_size_known(f); |
| | 1249 | return 0; |
| | 1250 | } |
| | 1251 | |
| | 1252 | |
| | 1253 | static struct ioengine_ops ioengine = { |
| | 1254 | .name = "sg", |
| | 1255 | .version = FIO_IOOPS_VERSION, |
| | 1256 | .init = fio_sgio_init, |
| | 1257 | .prep = fio_sgio_prep, |
| | 1258 | .queue = fio_sgio_queue, |
| | 1259 | .commit = fio_sgio_commit, |
| | 1260 | .getevents = fio_sgio_getevents, |
| | 1261 | .errdetails = fio_sgio_errdetails, |
| | 1262 | .event = fio_sgio_event, |
| | 1263 | .cleanup = fio_sgio_cleanup, |
| | 1264 | .open_file = fio_sgio_open, |
| | 1265 | .close_file = generic_close_file, |
| | 1266 | .get_file_size = fio_sgio_get_file_size, |
| | 1267 | .flags = FIO_SYNCIO | FIO_RAWIO, |
| | 1268 | .options = options, |
| | 1269 | .option_struct_size = sizeof(struct sg_options) |
| | 1270 | }; |
| | 1271 | |
| | 1272 | #else /* FIO_HAVE_SGIO */ |
| | 1273 | |
| | 1274 | /* |
| | 1275 | * When we have a proper configure system in place, we simply wont build |
| | 1276 | * and install this io engine. For now install a crippled version that |
| | 1277 | * just complains and fails to load. |
| | 1278 | */ |
| | 1279 | static int fio_sgio_init(struct thread_data fio_unused *td) |
| | 1280 | { |
| | 1281 | log_err("fio: ioengine sg not available\n"); |
| | 1282 | return 1; |
| | 1283 | } |
| | 1284 | |
| | 1285 | static struct ioengine_ops ioengine = { |
| | 1286 | .name = "sg", |
| | 1287 | .version = FIO_IOOPS_VERSION, |
| | 1288 | .init = fio_sgio_init, |
| | 1289 | }; |
| | 1290 | |
| | 1291 | #endif |
| | 1292 | |
| | 1293 | static void fio_init fio_sgio_register(void) |
| | 1294 | { |
| | 1295 | register_ioengine(&ioengine); |
| | 1296 | } |
| | 1297 | |
| | 1298 | static void fio_exit fio_sgio_unregister(void) |
| | 1299 | { |
| | 1300 | unregister_ioengine(&ioengine); |
| | 1301 | } |
projects / fio.git / blame_incremental