1 /*- 2 * Copyright (c) 2017 Netflix, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 #include <sys/cdefs.h> 27 __FBSDID("$FreeBSD$"); 28 29 #include <sys/param.h> 30 #include <sys/ioccom.h> 31 #include <sys/endian.h> 32 33 #include <ctype.h> 34 #include <err.h> 35 #include <fcntl.h> 36 #include <stddef.h> 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <string.h> 40 #include <unistd.h> 41 42 #include "nvmecontrol.h" 43 44 /* Tables for command line parsing */ 45 46 static cmd_fn_t wdc; 47 static cmd_fn_t wdc_cap_diag; 48 49 #define NONE 0xffffffffu 50 #define NONE64 0xffffffffffffffffull 51 #define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc } 52 #define OPT_END { NULL, 0, arg_none, NULL, NULL } 53 54 static struct cmd wdc_cmd = { 55 .name = "wdc", .fn = wdc, .descr = "wdc vendor specific commands", .ctx_size = 0, .opts = NULL, .args = NULL, 56 }; 57 58 CMD_COMMAND(wdc_cmd); 59 60 static struct options 61 { 62 const char *template; 63 const char *dev; 64 } opt = { 65 .template = NULL, 66 .dev = NULL, 67 }; 68 69 static const struct opts opts[] = { 70 OPT("template", 'o', arg_string, opt, template, 71 "Template for paths to use for different logs"), 72 OPT_END 73 }; 74 75 static const struct args args[] = { 76 { arg_string, &opt.dev, "controller-id" }, 77 { arg_none, NULL, NULL }, 78 }; 79 80 static struct cmd cap_diag_cmd = { 81 .name = "cap-diag", 82 .fn = wdc_cap_diag, 83 .descr = "Retrieve the cap-diag logs from the drive", 84 .ctx_size = sizeof(struct options), 85 .opts = opts, 86 .args = args, 87 }; 88 89 CMD_SUBCOMMAND(wdc_cmd, cap_diag_cmd); 90 91 #define WDC_NVME_TOC_SIZE 8 92 93 #define WDC_NVME_CAP_DIAG_OPCODE 0xe6 94 #define WDC_NVME_CAP_DIAG_CMD 0x0000 95 96 static void 97 wdc_append_serial_name(int fd, char *buf, size_t len, const char *suffix) 98 { 99 struct nvme_controller_data cdata; 100 char sn[NVME_SERIAL_NUMBER_LENGTH + 1]; 101 char *walker; 102 103 len -= strlen(buf); 104 buf += strlen(buf); 105 read_controller_data(fd, &cdata); 106 memcpy(sn, cdata.sn, NVME_SERIAL_NUMBER_LENGTH); 107 walker = sn + NVME_SERIAL_NUMBER_LENGTH - 1; 108 while (walker > sn && *walker == ' ') 109 walker--; 110 *++walker = '\0'; 111 snprintf(buf, len, "%s%s.bin", sn, suffix); 112 } 113 114 static void 115 wdc_get_data(int fd, uint32_t opcode, uint32_t len, uint32_t off, uint32_t cmd, 116 uint8_t *buffer, size_t buflen) 117 { 118 struct nvme_pt_command pt; 119 120 memset(&pt, 0, sizeof(pt)); 121 pt.cmd.opc = opcode; 122 pt.cmd.cdw10 = htole32(len / sizeof(uint32_t)); /* - 1 like all the others ??? */ 123 pt.cmd.cdw11 = htole32(off / sizeof(uint32_t)); 124 pt.cmd.cdw12 = htole32(cmd); 125 pt.buf = buffer; 126 pt.len = buflen; 127 pt.is_read = 1; 128 // printf("opcode %#x cdw10(len) %#x cdw11(offset?) %#x cdw12(cmd/sub) %#x buflen %zd\n", 129 // (int)opcode, (int)cdw10, (int)cdw11, (int)cdw12, buflen); 130 131 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) 132 err(1, "wdc_get_data request failed"); 133 if (nvme_completion_is_error(&pt.cpl)) 134 errx(1, "wdc_get_data request returned error"); 135 } 136 137 static void 138 wdc_do_dump(int fd, char *tmpl, const char *suffix, uint32_t opcode, 139 uint32_t cmd, int len_off) 140 { 141 int first; 142 int fd2; 143 uint8_t *buf; 144 uint32_t len, offset; 145 size_t resid; 146 147 wdc_append_serial_name(fd, tmpl, MAXPATHLEN, suffix); 148 149 /* XXX overwrite protection? */ 150 fd2 = open(tmpl, O_WRONLY | O_CREAT | O_TRUNC, 0644); 151 if (fd2 < 0) 152 err(1, "open %s", tmpl); 153 buf = aligned_alloc(PAGE_SIZE, NVME_MAX_XFER_SIZE); 154 if (buf == NULL) 155 errx(1, "Can't get buffer to read dump"); 156 offset = 0; 157 len = NVME_MAX_XFER_SIZE; 158 first = 1; 159 160 do { 161 resid = len > NVME_MAX_XFER_SIZE ? NVME_MAX_XFER_SIZE : len; 162 wdc_get_data(fd, opcode, resid, offset, cmd, buf, resid); 163 164 if (first) { 165 len = be32dec(buf + len_off); 166 if (len == 0) 167 errx(1, "No data for %s", suffix); 168 if (memcmp("E6LG", buf, 4) != 0) 169 printf("Expected header of E6LG, found '%4.4s' instead\n", 170 buf); 171 printf("Dumping %d bytes of version %d.%d log to %s\n", len, 172 buf[8], buf[9], tmpl); 173 /* 174 * Adjust amount to dump if total dump < 1MB, 175 * though it likely doesn't matter to the WDC 176 * analysis tools. 177 */ 178 if (resid > len) 179 resid = len; 180 first = 0; 181 } 182 if (write(fd2, buf, resid) != (ssize_t)resid) 183 err(1, "write"); 184 offset += resid; 185 len -= resid; 186 } while (len > 0); 187 free(buf); 188 close(fd2); 189 } 190 191 static void 192 wdc_cap_diag(const struct cmd *f, int argc, char *argv[]) 193 { 194 char tmpl[MAXPATHLEN]; 195 int fd; 196 197 if (arg_parse(argc, argv, f)) 198 return; 199 if (opt.template == NULL) { 200 fprintf(stderr, "Missing template arg.\n"); 201 arg_help(argc, argv, f); 202 } 203 strlcpy(tmpl, opt.template, sizeof(tmpl)); 204 open_dev(opt.dev, &fd, 1, 1); 205 wdc_do_dump(fd, tmpl, "cap_diag", WDC_NVME_CAP_DIAG_OPCODE, 206 WDC_NVME_CAP_DIAG_CMD, 4); 207 208 close(fd); 209 210 exit(1); 211 } 212 213 static void 214 wdc(const struct cmd *nf __unused, int argc, char *argv[]) 215 { 216 217 cmd_dispatch(argc, argv, &wdc_cmd); 218 } 219 220 /* 221 * HGST's 0xc1 page. This is a grab bag of additional data. Please see 222 * https://www.hgst.com/sites/default/files/resources/US_SN150_ProdManual.pdf 223 * https://www.hgst.com/sites/default/files/resources/US_SN100_ProdManual.pdf 224 * Appendix A for details 225 */ 226 227 typedef void (*subprint_fn_t)(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 228 229 struct subpage_print 230 { 231 uint16_t key; 232 subprint_fn_t fn; 233 }; 234 235 static void print_hgst_info_write_errors(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 236 static void print_hgst_info_read_errors(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 237 static void print_hgst_info_verify_errors(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 238 static void print_hgst_info_self_test(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 239 static void print_hgst_info_background_scan(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 240 static void print_hgst_info_erase_errors(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 241 static void print_hgst_info_erase_counts(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 242 static void print_hgst_info_temp_history(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 243 static void print_hgst_info_ssd_perf(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 244 static void print_hgst_info_firmware_load(void *buf, uint16_t subtype, uint8_t res, uint32_t size); 245 246 static struct subpage_print hgst_subpage[] = { 247 { 0x02, print_hgst_info_write_errors }, 248 { 0x03, print_hgst_info_read_errors }, 249 { 0x05, print_hgst_info_verify_errors }, 250 { 0x10, print_hgst_info_self_test }, 251 { 0x15, print_hgst_info_background_scan }, 252 { 0x30, print_hgst_info_erase_errors }, 253 { 0x31, print_hgst_info_erase_counts }, 254 { 0x32, print_hgst_info_temp_history }, 255 { 0x37, print_hgst_info_ssd_perf }, 256 { 0x38, print_hgst_info_firmware_load }, 257 }; 258 259 /* Print a subpage that is basically just key value pairs */ 260 static void 261 print_hgst_info_subpage_gen(void *buf, uint16_t subtype __unused, uint32_t size, 262 const struct kv_name *kv, size_t kv_count) 263 { 264 uint8_t *wsp, *esp; 265 uint16_t ptype; 266 uint8_t plen; 267 uint64_t param; 268 int i; 269 270 wsp = buf; 271 esp = wsp + size; 272 while (wsp < esp) { 273 ptype = le16dec(wsp); 274 wsp += 2; 275 wsp++; /* Flags, just ignore */ 276 plen = *wsp++; 277 param = 0; 278 for (i = 0; i < plen; i++) 279 param |= (uint64_t)*wsp++ << (i * 8); 280 printf(" %-30s: %jd\n", kv_lookup(kv, kv_count, ptype), (uintmax_t)param); 281 } 282 } 283 284 static void 285 print_hgst_info_write_errors(void *buf, uint16_t subtype, uint8_t res __unused, uint32_t size) 286 { 287 static struct kv_name kv[] = 288 { 289 { 0x0000, "Corrected Without Delay" }, 290 { 0x0001, "Corrected Maybe Delayed" }, 291 { 0x0002, "Re-Writes" }, 292 { 0x0003, "Errors Corrected" }, 293 { 0x0004, "Correct Algorithm Used" }, 294 { 0x0005, "Bytes Processed" }, 295 { 0x0006, "Uncorrected Errors" }, 296 { 0x8000, "Flash Write Commands" }, 297 { 0x8001, "HGST Special" }, 298 }; 299 300 printf("Write Errors Subpage:\n"); 301 print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv)); 302 } 303 304 static void 305 print_hgst_info_read_errors(void *buf, uint16_t subtype, uint8_t res __unused, uint32_t size) 306 { 307 static struct kv_name kv[] = 308 { 309 { 0x0000, "Corrected Without Delay" }, 310 { 0x0001, "Corrected Maybe Delayed" }, 311 { 0x0002, "Re-Reads" }, 312 { 0x0003, "Errors Corrected" }, 313 { 0x0004, "Correct Algorithm Used" }, 314 { 0x0005, "Bytes Processed" }, 315 { 0x0006, "Uncorrected Errors" }, 316 { 0x8000, "Flash Read Commands" }, 317 { 0x8001, "XOR Recovered" }, 318 { 0x8002, "Total Corrected Bits" }, 319 }; 320 321 printf("Read Errors Subpage:\n"); 322 print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv)); 323 } 324 325 static void 326 print_hgst_info_verify_errors(void *buf, uint16_t subtype, uint8_t res __unused, uint32_t size) 327 { 328 static struct kv_name kv[] = 329 { 330 { 0x0000, "Corrected Without Delay" }, 331 { 0x0001, "Corrected Maybe Delayed" }, 332 { 0x0002, "Re-Reads" }, 333 { 0x0003, "Errors Corrected" }, 334 { 0x0004, "Correct Algorithm Used" }, 335 { 0x0005, "Bytes Processed" }, 336 { 0x0006, "Uncorrected Errors" }, 337 { 0x8000, "Commands Processed" }, 338 }; 339 340 printf("Verify Errors Subpage:\n"); 341 print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv)); 342 } 343 344 static void 345 print_hgst_info_self_test(void *buf, uint16_t subtype __unused, uint8_t res __unused, uint32_t size) 346 { 347 size_t i; 348 uint8_t *walker = buf; 349 uint16_t code, hrs; 350 uint32_t lba; 351 352 printf("Self Test Subpage:\n"); 353 for (i = 0; i < size / 20; i++) { /* Each entry is 20 bytes */ 354 code = le16dec(walker); 355 walker += 2; 356 walker++; /* Ignore fixed flags */ 357 if (*walker == 0) /* Last entry is zero length */ 358 break; 359 if (*walker++ != 0x10) { 360 printf("Bad length for self test report\n"); 361 return; 362 } 363 printf(" %-30s: %d\n", "Recent Test", code); 364 printf(" %-28s: %#x\n", "Self-Test Results", *walker & 0xf); 365 printf(" %-28s: %#x\n", "Self-Test Code", (*walker >> 5) & 0x7); 366 walker++; 367 printf(" %-28s: %#x\n", "Self-Test Number", *walker++); 368 hrs = le16dec(walker); 369 walker += 2; 370 lba = le32dec(walker); 371 walker += 4; 372 printf(" %-28s: %u\n", "Total Power On Hrs", hrs); 373 printf(" %-28s: %#jx (%jd)\n", "LBA", (uintmax_t)lba, (uintmax_t)lba); 374 printf(" %-28s: %#x\n", "Sense Key", *walker++ & 0xf); 375 printf(" %-28s: %#x\n", "Additional Sense Code", *walker++); 376 printf(" %-28s: %#x\n", "Additional Sense Qualifier", *walker++); 377 printf(" %-28s: %#x\n", "Vendor Specific Detail", *walker++); 378 } 379 } 380 381 static void 382 print_hgst_info_background_scan(void *buf, uint16_t subtype __unused, uint8_t res __unused, uint32_t size) 383 { 384 uint8_t *walker = buf; 385 uint8_t status; 386 uint16_t code, nscan, progress; 387 uint32_t pom, nand; 388 389 printf("Background Media Scan Subpage:\n"); 390 /* Decode the header */ 391 code = le16dec(walker); 392 walker += 2; 393 walker++; /* Ignore fixed flags */ 394 if (*walker++ != 0x10) { 395 printf("Bad length for background scan header\n"); 396 return; 397 } 398 if (code != 0) { 399 printf("Expceted code 0, found code %#x\n", code); 400 return; 401 } 402 pom = le32dec(walker); 403 walker += 4; 404 walker++; /* Reserved */ 405 status = *walker++; 406 nscan = le16dec(walker); 407 walker += 2; 408 progress = le16dec(walker); 409 walker += 2; 410 walker += 6; /* Reserved */ 411 printf(" %-30s: %d\n", "Power On Minutes", pom); 412 printf(" %-30s: %x (%s)\n", "BMS Status", status, 413 status == 0 ? "idle" : (status == 1 ? "active" : (status == 8 ? "suspended" : "unknown"))); 414 printf(" %-30s: %d\n", "Number of BMS", nscan); 415 printf(" %-30s: %d\n", "Progress Current BMS", progress); 416 /* Report retirements */ 417 if (walker - (uint8_t *)buf != 20) { 418 printf("Coding error, offset not 20\n"); 419 return; 420 } 421 size -= 20; 422 printf(" %-30s: %d\n", "BMS retirements", size / 0x18); 423 while (size > 0) { 424 code = le16dec(walker); 425 walker += 2; 426 walker++; 427 if (*walker++ != 0x14) { 428 printf("Bad length parameter\n"); 429 return; 430 } 431 pom = le32dec(walker); 432 walker += 4; 433 /* 434 * Spec sheet says the following are hard coded, if true, just 435 * print the NAND retirement. 436 */ 437 if (walker[0] == 0x41 && 438 walker[1] == 0x0b && 439 walker[2] == 0x01 && 440 walker[3] == 0x00 && 441 walker[4] == 0x00 && 442 walker[5] == 0x00 && 443 walker[6] == 0x00 && 444 walker[7] == 0x00) { 445 walker += 8; 446 walker += 4; /* Skip reserved */ 447 nand = le32dec(walker); 448 walker += 4; 449 printf(" %-30s: %d\n", "Retirement number", code); 450 printf(" %-28s: %#x\n", "NAND (C/T)BBBPPP", nand); 451 } else { 452 printf("Parameter %#x entry corrupt\n", code); 453 walker += 16; 454 } 455 } 456 } 457 458 static void 459 print_hgst_info_erase_errors(void *buf, uint16_t subtype __unused, uint8_t res __unused, uint32_t size) 460 { 461 static struct kv_name kv[] = 462 { 463 { 0x0000, "Corrected Without Delay" }, 464 { 0x0001, "Corrected Maybe Delayed" }, 465 { 0x0002, "Re-Erase" }, 466 { 0x0003, "Errors Corrected" }, 467 { 0x0004, "Correct Algorithm Used" }, 468 { 0x0005, "Bytes Processed" }, 469 { 0x0006, "Uncorrected Errors" }, 470 { 0x8000, "Flash Erase Commands" }, 471 { 0x8001, "Mfg Defect Count" }, 472 { 0x8002, "Grown Defect Count" }, 473 { 0x8003, "Erase Count -- User" }, 474 { 0x8004, "Erase Count -- System" }, 475 }; 476 477 printf("Erase Errors Subpage:\n"); 478 print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv)); 479 } 480 481 static void 482 print_hgst_info_erase_counts(void *buf, uint16_t subtype, uint8_t res __unused, uint32_t size) 483 { 484 /* My drive doesn't export this -- so not coding up */ 485 printf("XXX: Erase counts subpage: %p, %#x %d\n", buf, subtype, size); 486 } 487 488 static void 489 print_hgst_info_temp_history(void *buf, uint16_t subtype __unused, uint8_t res __unused, uint32_t size __unused) 490 { 491 uint8_t *walker = buf; 492 uint32_t min; 493 494 printf("Temperature History:\n"); 495 printf(" %-30s: %d C\n", "Current Temperature", *walker++); 496 printf(" %-30s: %d C\n", "Reference Temperature", *walker++); 497 printf(" %-30s: %d C\n", "Maximum Temperature", *walker++); 498 printf(" %-30s: %d C\n", "Minimum Temperature", *walker++); 499 min = le32dec(walker); 500 walker += 4; 501 printf(" %-30s: %d:%02d:00\n", "Max Temperature Time", min / 60, min % 60); 502 min = le32dec(walker); 503 walker += 4; 504 printf(" %-30s: %d:%02d:00\n", "Over Temperature Duration", min / 60, min % 60); 505 min = le32dec(walker); 506 walker += 4; 507 printf(" %-30s: %d:%02d:00\n", "Min Temperature Time", min / 60, min % 60); 508 } 509 510 static void 511 print_hgst_info_ssd_perf(void *buf, uint16_t subtype __unused, uint8_t res, uint32_t size __unused) 512 { 513 uint8_t *walker = buf; 514 uint64_t val; 515 516 printf("SSD Performance Subpage Type %d:\n", res); 517 val = le64dec(walker); 518 walker += 8; 519 printf(" %-30s: %ju\n", "Host Read Commands", val); 520 val = le64dec(walker); 521 walker += 8; 522 printf(" %-30s: %ju\n", "Host Read Blocks", val); 523 val = le64dec(walker); 524 walker += 8; 525 printf(" %-30s: %ju\n", "Host Cache Read Hits Commands", val); 526 val = le64dec(walker); 527 walker += 8; 528 printf(" %-30s: %ju\n", "Host Cache Read Hits Blocks", val); 529 val = le64dec(walker); 530 walker += 8; 531 printf(" %-30s: %ju\n", "Host Read Commands Stalled", val); 532 val = le64dec(walker); 533 walker += 8; 534 printf(" %-30s: %ju\n", "Host Write Commands", val); 535 val = le64dec(walker); 536 walker += 8; 537 printf(" %-30s: %ju\n", "Host Write Blocks", val); 538 val = le64dec(walker); 539 walker += 8; 540 printf(" %-30s: %ju\n", "Host Write Odd Start Commands", val); 541 val = le64dec(walker); 542 walker += 8; 543 printf(" %-30s: %ju\n", "Host Write Odd End Commands", val); 544 val = le64dec(walker); 545 walker += 8; 546 printf(" %-30s: %ju\n", "Host Write Commands Stalled", val); 547 val = le64dec(walker); 548 walker += 8; 549 printf(" %-30s: %ju\n", "NAND Read Commands", val); 550 val = le64dec(walker); 551 walker += 8; 552 printf(" %-30s: %ju\n", "NAND Read Blocks", val); 553 val = le64dec(walker); 554 walker += 8; 555 printf(" %-30s: %ju\n", "NAND Write Commands", val); 556 val = le64dec(walker); 557 walker += 8; 558 printf(" %-30s: %ju\n", "NAND Write Blocks", val); 559 val = le64dec(walker); 560 walker += 8; 561 printf(" %-30s: %ju\n", "NAND Read Before Writes", val); 562 } 563 564 static void 565 print_hgst_info_firmware_load(void *buf, uint16_t subtype __unused, uint8_t res __unused, uint32_t size __unused) 566 { 567 uint8_t *walker = buf; 568 569 printf("Firmware Load Subpage:\n"); 570 printf(" %-30s: %d\n", "Firmware Downloads", le32dec(walker)); 571 } 572 573 static void 574 kv_indirect(void *buf, uint32_t subtype, uint8_t res, uint32_t size, struct subpage_print *sp, size_t nsp) 575 { 576 size_t i; 577 578 for (i = 0; i < nsp; i++, sp++) { 579 if (sp->key == subtype) { 580 sp->fn(buf, subtype, res, size); 581 return; 582 } 583 } 584 printf("No handler for page type %x\n", subtype); 585 } 586 587 static void 588 print_hgst_info_log(const struct nvme_controller_data *cdata __unused, void *buf, uint32_t size __unused) 589 { 590 uint8_t *walker, *end, *subpage; 591 int pages; 592 uint16_t len; 593 uint8_t subtype, res; 594 595 printf("HGST Extra Info Log\n"); 596 printf("===================\n"); 597 598 walker = buf; 599 pages = *walker++; 600 walker++; 601 len = le16dec(walker); 602 walker += 2; 603 end = walker + len; /* Length is exclusive of this header */ 604 605 while (walker < end) { 606 subpage = walker + 4; 607 subtype = *walker++ & 0x3f; /* subtype */ 608 res = *walker++; /* Reserved */ 609 len = le16dec(walker); 610 walker += len + 2; /* Length, not incl header */ 611 if (walker > end) { 612 printf("Ooops! Off the end of the list\n"); 613 break; 614 } 615 kv_indirect(subpage, subtype, res, len, hgst_subpage, nitems(hgst_subpage)); 616 } 617 } 618 619 NVME_LOGPAGE(hgst_info, 620 HGST_INFO_LOG, "hgst", "Detailed Health/SMART", 621 print_hgst_info_log, DEFAULT_SIZE); 622 NVME_LOGPAGE(wdc_info, 623 HGST_INFO_LOG, "wdc", "Detailed Health/SMART", 624 print_hgst_info_log, DEFAULT_SIZE); 625