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1 /*-
2  * Copyright (c) 2013 EMC Corp.
3  * All rights reserved.
4  *
5  * Copyright (C) 2012-2013 Intel Corporation
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32
33 #include <sys/param.h>
34 #include <sys/ioccom.h>
35
36 #include <ctype.h>
37 #include <err.h>
38 #include <fcntl.h>
39 #include <stdbool.h>
40 #include <stddef.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #include <unistd.h>
45 #include <sys/endian.h>
46
47 #if _BYTE_ORDER != _LITTLE_ENDIAN
48 #error "Code only works on little endian machines"
49 #endif
50
51 #include "nvmecontrol.h"
52
53 #define DEFAULT_SIZE    (4096)
54 #define MAX_FW_SLOTS    (7)
55
56 typedef void (*print_fn_t)(void *buf, uint32_t size);
57
58 struct kv_name
59 {
60         uint32_t key;
61         const char *name;
62 };
63
64 static const char *
65 kv_lookup(const struct kv_name *kv, size_t kv_count, uint32_t key)
66 {
67         static char bad[32];
68         size_t i;
69
70         for (i = 0; i < kv_count; i++, kv++)
71                 if (kv->key == key)
72                         return kv->name;
73         snprintf(bad, sizeof(bad), "Attribute %#x", key);
74         return bad;
75 }
76
77 static void
78 print_bin(void *data, uint32_t length)
79 {
80         write(STDOUT_FILENO, data, length);
81 }
82
83 static void *
84 get_log_buffer(uint32_t size)
85 {
86         void    *buf;
87
88         if ((buf = malloc(size)) == NULL)
89                 errx(1, "unable to malloc %u bytes", size);
90
91         memset(buf, 0, size);
92         return (buf);
93 }
94
95 void
96 read_logpage(int fd, uint8_t log_page, int nsid, void *payload,
97     uint32_t payload_size)
98 {
99         struct nvme_pt_command  pt;
100
101         memset(&pt, 0, sizeof(pt));
102         pt.cmd.opc = NVME_OPC_GET_LOG_PAGE;
103         pt.cmd.nsid = nsid;
104         pt.cmd.cdw10 = ((payload_size/sizeof(uint32_t)) - 1) << 16;
105         pt.cmd.cdw10 |= log_page;
106         pt.buf = payload;
107         pt.len = payload_size;
108         pt.is_read = 1;
109
110         if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
111                 err(1, "get log page request failed");
112
113         if (nvme_completion_is_error(&pt.cpl))
114                 errx(1, "get log page request returned error");
115 }
116
117 static void
118 print_log_error(void *buf, uint32_t size)
119 {
120         int                                     i, nentries;
121         struct nvme_error_information_entry     *entry = buf;
122         struct nvme_status                      *status;
123
124         printf("Error Information Log\n");
125         printf("=====================\n");
126
127         if (entry->error_count == 0) {
128                 printf("No error entries found\n");
129                 return;
130         }
131
132         nentries = size/sizeof(struct nvme_error_information_entry);
133         for (i = 0; i < nentries; i++, entry++) {
134                 if (entry->error_count == 0)
135                         break;
136
137                 status = &entry->status;
138                 printf("Entry %02d\n", i + 1);
139                 printf("=========\n");
140                 printf(" Error count:          %ju\n", entry->error_count);
141                 printf(" Submission queue ID:  %u\n", entry->sqid);
142                 printf(" Command ID:           %u\n", entry->cid);
143                 /* TODO: Export nvme_status_string structures from kernel? */
144                 printf(" Status:\n");
145                 printf("  Phase tag:           %d\n", status->p);
146                 printf("  Status code:         %d\n", status->sc);
147                 printf("  Status code type:    %d\n", status->sct);
148                 printf("  More:                %d\n", status->m);
149                 printf("  DNR:                 %d\n", status->dnr);
150                 printf(" Error location:       %u\n", entry->error_location);
151                 printf(" LBA:                  %ju\n", entry->lba);
152                 printf(" Namespace ID:         %u\n", entry->nsid);
153                 printf(" Vendor specific info: %u\n", entry->vendor_specific);
154         }
155 }
156
157 static void
158 print_temp(uint16_t t)
159 {
160         printf("%u K, %2.2f C, %3.2f F\n", t, (float)t - 273.15, (float)t * 9 / 5 - 459.67);
161 }
162
163
164 static void
165 print_log_health(void *buf, uint32_t size __unused)
166 {
167         struct nvme_health_information_page *health = buf;
168         char cbuf[UINT128_DIG + 1];
169         int i;
170
171         printf("SMART/Health Information Log\n");
172         printf("============================\n");
173
174         printf("Critical Warning State:         0x%02x\n",
175             health->critical_warning.raw);
176         printf(" Available spare:               %d\n",
177             health->critical_warning.bits.available_spare);
178         printf(" Temperature:                   %d\n",
179             health->critical_warning.bits.temperature);
180         printf(" Device reliability:            %d\n",
181             health->critical_warning.bits.device_reliability);
182         printf(" Read only:                     %d\n",
183             health->critical_warning.bits.read_only);
184         printf(" Volatile memory backup:        %d\n",
185             health->critical_warning.bits.volatile_memory_backup);
186         printf("Temperature:                    ");
187         print_temp(health->temperature);
188         printf("Available spare:                %u\n",
189             health->available_spare);
190         printf("Available spare threshold:      %u\n",
191             health->available_spare_threshold);
192         printf("Percentage used:                %u\n",
193             health->percentage_used);
194
195         printf("Data units (512,000 byte) read: %s\n",
196             uint128_to_str(to128(health->data_units_read), cbuf, sizeof(cbuf)));
197         printf("Data units written:             %s\n",
198             uint128_to_str(to128(health->data_units_written), cbuf, sizeof(cbuf)));
199         printf("Host read commands:             %s\n",
200             uint128_to_str(to128(health->host_read_commands), cbuf, sizeof(cbuf)));
201         printf("Host write commands:            %s\n",
202             uint128_to_str(to128(health->host_write_commands), cbuf, sizeof(cbuf)));
203         printf("Controller busy time (minutes): %s\n",
204             uint128_to_str(to128(health->controller_busy_time), cbuf, sizeof(cbuf)));
205         printf("Power cycles:                   %s\n",
206             uint128_to_str(to128(health->power_cycles), cbuf, sizeof(cbuf)));
207         printf("Power on hours:                 %s\n",
208             uint128_to_str(to128(health->power_on_hours), cbuf, sizeof(cbuf)));
209         printf("Unsafe shutdowns:               %s\n",
210             uint128_to_str(to128(health->unsafe_shutdowns), cbuf, sizeof(cbuf)));
211         printf("Media errors:                   %s\n",
212             uint128_to_str(to128(health->media_errors), cbuf, sizeof(cbuf)));
213         printf("No. error info log entries:     %s\n",
214             uint128_to_str(to128(health->num_error_info_log_entries), cbuf, sizeof(cbuf)));
215
216         printf("Warning Temp Composite Time:    %d\n", health->warning_temp_time);
217         printf("Error Temp Composite Time:      %d\n", health->error_temp_time);
218         for (i = 0; i < 7; i++) {
219                 if (health->temp_sensor[i] == 0)
220                         continue;
221                 printf("Temperature Sensor %d:           ", i + 1);
222                 print_temp(health->temp_sensor[i]);
223         }
224 }
225
226 static void
227 print_log_firmware(void *buf, uint32_t size __unused)
228 {
229         int                             i;
230         const char                      *status;
231         struct nvme_firmware_page       *fw = buf;
232
233         printf("Firmware Slot Log\n");
234         printf("=================\n");
235
236         for (i = 0; i < MAX_FW_SLOTS; i++) {
237                 printf("Slot %d: ", i + 1);
238                 if (fw->afi.slot == i + 1)
239                         status = "  Active";
240                 else
241                         status = "Inactive";
242
243                 if (fw->revision[i] == 0LLU)
244                         printf("Empty\n");
245                 else
246                         if (isprint(*(char *)&fw->revision[i]))
247                                 printf("[%s] %.8s\n", status,
248                                     (char *)&fw->revision[i]);
249                         else
250                                 printf("[%s] %016jx\n", status,
251                                     fw->revision[i]);
252         }
253 }
254
255 /*
256  * Intel specific log pages from
257  * http://www.intel.com/content/dam/www/public/us/en/documents/product-specifications/ssd-dc-p3700-spec.pdf
258  *
259  * Though the version as of this date has a typo for the size of log page 0xca,
260  * offset 147: it is only 1 byte, not 6.
261  */
262 static void
263 print_intel_temp_stats(void *buf, uint32_t size __unused)
264 {
265         struct intel_log_temp_stats     *temp = buf;
266
267         printf("Intel Temperature Log\n");
268         printf("=====================\n");
269
270         printf("Current:                        ");
271         print_temp(temp->current);
272         printf("Overtemp Last Flags             %#jx\n", (uintmax_t)temp->overtemp_flag_last);
273         printf("Overtemp Lifetime Flags         %#jx\n", (uintmax_t)temp->overtemp_flag_life);
274         printf("Max Temperature                 ");
275         print_temp(temp->max_temp);
276         printf("Min Temperature                 ");
277         print_temp(temp->min_temp);
278         printf("Max Operating Temperature       ");
279         print_temp(temp->max_oper_temp);
280         printf("Min Operating Temperature       ");
281         print_temp(temp->min_oper_temp);
282         printf("Estimated Temperature Offset:   %ju C/K\n", (uintmax_t)temp->est_offset);
283 }
284
285 /*
286  * Format from Table 22, section 5.7 IO Command Latency Statistics.
287  * Read and write stats pages have identical encoding.
288  */
289 static void
290 print_intel_read_write_lat_log(void *buf, uint32_t size __unused)
291 {
292         const char *walker = buf;
293         int i;
294
295         printf("Major:                         %d\n", le16dec(walker + 0));
296         printf("Minor:                         %d\n", le16dec(walker + 2));
297         for (i = 0; i < 32; i++)
298                 printf("%4dus-%4dus:                 %ju\n", i * 32, (i + 1) * 32, (uintmax_t)le32dec(walker + 4 + i * 4));
299         for (i = 1; i < 32; i++)
300                 printf("%4dms-%4dms:                 %ju\n", i, i + 1, (uintmax_t)le32dec(walker + 132 + i * 4));
301         for (i = 1; i < 32; i++)
302                 printf("%4dms-%4dms:                 %ju\n", i * 32, (i + 1) * 32, (uintmax_t)le32dec(walker + 256 + i * 4));
303 }
304
305 static void
306 print_intel_read_lat_log(void *buf, uint32_t size)
307 {
308
309         printf("Intel Read Latency Log\n");
310         printf("======================\n");
311         print_intel_read_write_lat_log(buf, size);
312 }
313
314 static void
315 print_intel_write_lat_log(void *buf, uint32_t size)
316 {
317
318         printf("Intel Write Latency Log\n");
319         printf("=======================\n");
320         print_intel_read_write_lat_log(buf, size);
321 }
322
323 /*
324  * Table 19. 5.4 SMART Attributes. Samsung also implements this and some extra data not documented.
325  */
326 static void
327 print_intel_add_smart(void *buf, uint32_t size __unused)
328 {
329         uint8_t *walker = buf;
330         uint8_t *end = walker + 150;
331         const char *name;
332         uint64_t raw;
333         uint8_t normalized;
334
335         static struct kv_name kv[] =
336         {
337                 { 0xab, "Program Fail Count" },
338                 { 0xac, "Erase Fail Count" },
339                 { 0xad, "Wear Leveling Count" },
340                 { 0xb8, "End to End Error Count" },
341                 { 0xc7, "CRC Error Count" },
342                 { 0xe2, "Timed: Media Wear" },
343                 { 0xe3, "Timed: Host Read %" },
344                 { 0xe4, "Timed: Elapsed Time" },
345                 { 0xea, "Thermal Throttle Status" },
346                 { 0xf0, "Retry Buffer Overflows" },
347                 { 0xf3, "PLL Lock Loss Count" },
348                 { 0xf4, "NAND Bytes Written" },
349                 { 0xf5, "Host Bytes Written" },
350         };
351
352         printf("Additional SMART Data Log\n");
353         printf("=========================\n");
354         /*
355          * walker[0] = Key
356          * walker[1,2] = reserved
357          * walker[3] = Normalized Value
358          * walker[4] = reserved
359          * walker[5..10] = Little Endian Raw value
360          *      (or other represenations)
361          * walker[11] = reserved
362          */
363         while (walker < end) {
364                 name = kv_lookup(kv, nitems(kv), *walker);
365                 normalized = walker[3];
366                 raw = le48dec(walker + 5);
367                 switch (*walker){
368                 case 0:
369                         break;
370                 case 0xad:
371                         printf("%-32s: %3d min: %u max: %u ave: %u\n", name, normalized,
372                             le16dec(walker + 5), le16dec(walker + 7), le16dec(walker + 9));
373                         break;
374                 case 0xe2:
375                         printf("%-32s: %3d %.3f%%\n", name, normalized, raw / 1024.0);
376                         break;
377                 case 0xea:
378                         printf("%-32s: %3d %d%% %d times\n", name, normalized, walker[5], le32dec(walker+6));
379                         break;
380                 default:
381                         printf("%-32s: %3d %ju\n", name, normalized, (uintmax_t)raw);
382                         break;
383                 }
384                 walker += 12;
385         }
386 }
387
388 /*
389  * HGST's 0xc1 page. This is a grab bag of additional data. Please see
390  * https://www.hgst.com/sites/default/files/resources/US_SN150_ProdManual.pdf
391  * https://www.hgst.com/sites/default/files/resources/US_SN100_ProdManual.pdf
392  * Appendix A for details
393  */
394
395 typedef void (*subprint_fn_t)(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
396
397 struct subpage_print
398 {
399         uint16_t key;
400         subprint_fn_t fn;
401 };
402
403 static void print_hgst_info_write_errors(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
404 static void print_hgst_info_read_errors(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
405 static void print_hgst_info_verify_errors(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
406 static void print_hgst_info_self_test(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
407 static void print_hgst_info_background_scan(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
408 static void print_hgst_info_erase_errors(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
409 static void print_hgst_info_erase_counts(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
410 static void print_hgst_info_temp_history(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
411 static void print_hgst_info_ssd_perf(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
412 static void print_hgst_info_firmware_load(void *buf, uint16_t subtype, uint8_t res, uint32_t size);
413
414 static struct subpage_print hgst_subpage[] = {
415         { 0x02, print_hgst_info_write_errors },
416         { 0x03, print_hgst_info_read_errors },
417         { 0x05, print_hgst_info_verify_errors },
418         { 0x10, print_hgst_info_self_test },
419         { 0x15, print_hgst_info_background_scan },
420         { 0x30, print_hgst_info_erase_errors },
421         { 0x31, print_hgst_info_erase_counts },
422         { 0x32, print_hgst_info_temp_history },
423         { 0x37, print_hgst_info_ssd_perf },
424         { 0x38, print_hgst_info_firmware_load },
425 };
426
427 /* Print a subpage that is basically just key value pairs */
428 static void
429 print_hgst_info_subpage_gen(void *buf, uint16_t subtype __unused, uint32_t size,
430     const struct kv_name *kv, size_t kv_count)
431 {
432         uint8_t *wsp, *esp;
433         uint16_t ptype;
434         uint8_t plen;
435         uint64_t param;
436         int i;
437
438         wsp = buf;
439         esp = wsp + size;
440         while (wsp < esp) {
441                 ptype = le16dec(wsp);
442                 wsp += 2;
443                 wsp++;                  /* Flags, just ignore */
444                 plen = *wsp++;
445                 param = 0;
446                 for (i = 0; i < plen; i++)
447                         param |= (uint64_t)*wsp++ << (i * 8);
448                 printf("  %-30s: %jd\n", kv_lookup(kv, kv_count, ptype), (uintmax_t)param);
449         }
450 }
451
452 static void
453 print_hgst_info_write_errors(void *buf, uint16_t subtype, uint8_t res __unused, uint32_t size)
454 {
455         static struct kv_name kv[] =
456         {
457                 { 0x0000, "Corrected Without Delay" },
458                 { 0x0001, "Corrected Maybe Delayed" },
459                 { 0x0002, "Re-Writes" },
460                 { 0x0003, "Errors Corrected" },
461                 { 0x0004, "Correct Algorithm Used" },
462                 { 0x0005, "Bytes Processed" },
463                 { 0x0006, "Uncorrected Errors" },
464                 { 0x8000, "Flash Write Commands" },
465                 { 0x8001, "HGST Special" },
466         };
467
468         printf("Write Errors Subpage:\n");
469         print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv));
470 }
471
472 static void
473 print_hgst_info_read_errors(void *buf, uint16_t subtype, uint8_t res __unused, uint32_t size)
474 {
475         static struct kv_name kv[] =
476         {
477                 { 0x0000, "Corrected Without Delay" },
478                 { 0x0001, "Corrected Maybe Delayed" },
479                 { 0x0002, "Re-Reads" },
480                 { 0x0003, "Errors Corrected" },
481                 { 0x0004, "Correct Algorithm Used" },
482                 { 0x0005, "Bytes Processed" },
483                 { 0x0006, "Uncorrected Errors" },
484                 { 0x8000, "Flash Read Commands" },
485                 { 0x8001, "XOR Recovered" },
486                 { 0x8002, "Total Corrected Bits" },
487         };
488
489         printf("Read Errors Subpage:\n");
490         print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv));
491 }
492
493 static void
494 print_hgst_info_verify_errors(void *buf, uint16_t subtype, uint8_t res __unused, uint32_t size)
495 {
496         static struct kv_name kv[] =
497         {
498                 { 0x0000, "Corrected Without Delay" },
499                 { 0x0001, "Corrected Maybe Delayed" },
500                 { 0x0002, "Re-Reads" },
501                 { 0x0003, "Errors Corrected" },
502                 { 0x0004, "Correct Algorithm Used" },
503                 { 0x0005, "Bytes Processed" },
504                 { 0x0006, "Uncorrected Errors" },
505                 { 0x8000, "Commands Processed" },
506         };
507
508         printf("Verify Errors Subpage:\n");
509         print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv));
510 }
511
512 static void
513 print_hgst_info_self_test(void *buf, uint16_t subtype __unused, uint8_t res __unused, uint32_t size)
514 {
515         size_t i;
516         uint8_t *walker = buf;
517         uint16_t code, hrs;
518         uint32_t lba;
519
520         printf("Self Test Subpage:\n");
521         for (i = 0; i < size / 20; i++) {       /* Each entry is 20 bytes */
522                 code = le16dec(walker);
523                 walker += 2;
524                 walker++;                       /* Ignore fixed flags */
525                 if (*walker == 0)               /* Last entry is zero length */
526                         break;
527                 if (*walker++ != 0x10) {
528                         printf("Bad length for self test report\n");
529                         return;
530                 }
531                 printf("  %-30s: %d\n", "Recent Test", code);
532                 printf("    %-28s: %#x\n", "Self-Test Results", *walker & 0xf);
533                 printf("    %-28s: %#x\n", "Self-Test Code", (*walker >> 5) & 0x7);
534                 walker++;
535                 printf("    %-28s: %#x\n", "Self-Test Number", *walker++);
536                 hrs = le16dec(walker);
537                 walker += 2;
538                 lba = le32dec(walker);
539                 walker += 4;
540                 printf("    %-28s: %u\n", "Total Power On Hrs", hrs);
541                 printf("    %-28s: %#jx (%jd)\n", "LBA", (uintmax_t)lba, (uintmax_t)lba);
542                 printf("    %-28s: %#x\n", "Sense Key", *walker++ & 0xf);
543                 printf("    %-28s: %#x\n", "Additional Sense Code", *walker++);
544                 printf("    %-28s: %#x\n", "Additional Sense Qualifier", *walker++);
545                 printf("    %-28s: %#x\n", "Vendor Specific Detail", *walker++);
546         }
547 }
548
549 static void
550 print_hgst_info_background_scan(void *buf, uint16_t subtype __unused, uint8_t res __unused, uint32_t size)
551 {
552         uint8_t *walker = buf;
553         uint8_t status;
554         uint16_t code, nscan, progress;
555         uint32_t pom, nand;
556
557         printf("Background Media Scan Subpage:\n");
558         /* Decode the header */
559         code = le16dec(walker);
560         walker += 2;
561         walker++;                       /* Ignore fixed flags */
562         if (*walker++ != 0x10) {
563                 printf("Bad length for background scan header\n");
564                 return;
565         }
566         if (code != 0) {
567                 printf("Expceted code 0, found code %#x\n", code);
568                 return;
569         }
570         pom = le32dec(walker);
571         walker += 4;
572         walker++;                       /* Reserved */
573         status = *walker++;
574         nscan = le16dec(walker);
575         walker += 2;
576         progress = le16dec(walker);
577         walker += 2;
578         walker += 6;                    /* Reserved */
579         printf("  %-30s: %d\n", "Power On Minutes", pom);
580         printf("  %-30s: %x (%s)\n", "BMS Status", status,
581             status == 0 ? "idle" : (status == 1 ? "active" : (status == 8 ? "suspended" : "unknown")));
582         printf("  %-30s: %d\n", "Number of BMS", nscan);
583         printf("  %-30s: %d\n", "Progress Current BMS", progress);
584         /* Report retirements */
585         if (walker - (uint8_t *)buf != 20) {
586                 printf("Coding error, offset not 20\n");
587                 return;
588         }
589         size -= 20;
590         printf("  %-30s: %d\n", "BMS retirements", size / 0x18);
591         while (size > 0) {
592                 code = le16dec(walker);
593                 walker += 2;
594                 walker++;
595                 if (*walker++ != 0x14) {
596                         printf("Bad length parameter\n");
597                         return;
598                 }
599                 pom = le32dec(walker);
600                 walker += 4;
601                 /*
602                  * Spec sheet says the following are hard coded, if true, just
603                  * print the NAND retirement.
604                  */
605                 if (walker[0] == 0x41 &&
606                     walker[1] == 0x0b &&
607                     walker[2] == 0x01 &&
608                     walker[3] == 0x00 &&
609                     walker[4] == 0x00 &&
610                     walker[5] == 0x00 &&
611                     walker[6] == 0x00 &&
612                     walker[7] == 0x00) {
613                         walker += 8;
614                         walker += 4;    /* Skip reserved */
615                         nand = le32dec(walker);
616                         walker += 4;
617                         printf("  %-30s: %d\n", "Retirement number", code);
618                         printf("    %-28s: %#x\n", "NAND (C/T)BBBPPP", nand);
619                 } else {
620                         printf("Parameter %#x entry corrupt\n", code);
621                         walker += 16;
622                 }
623         }
624 }
625
626 static void
627 print_hgst_info_erase_errors(void *buf, uint16_t subtype __unused, uint8_t res __unused, uint32_t size)
628 {
629         static struct kv_name kv[] =
630         {
631                 { 0x0000, "Corrected Without Delay" },
632                 { 0x0001, "Corrected Maybe Delayed" },
633                 { 0x0002, "Re-Erase" },
634                 { 0x0003, "Errors Corrected" },
635                 { 0x0004, "Correct Algorithm Used" },
636                 { 0x0005, "Bytes Processed" },
637                 { 0x0006, "Uncorrected Errors" },
638                 { 0x8000, "Flash Erase Commands" },
639                 { 0x8001, "Mfg Defect Count" },
640                 { 0x8002, "Grown Defect Count" },
641                 { 0x8003, "Erase Count -- User" },
642                 { 0x8004, "Erase Count -- System" },
643         };
644
645         printf("Erase Errors Subpage:\n");
646         print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv));
647 }
648
649 static void
650 print_hgst_info_erase_counts(void *buf, uint16_t subtype, uint8_t res __unused, uint32_t size)
651 {
652         /* My drive doesn't export this -- so not coding up */
653         printf("XXX: Erase counts subpage: %p, %#x %d\n", buf, subtype, size);
654 }
655
656 static void
657 print_hgst_info_temp_history(void *buf, uint16_t subtype __unused, uint8_t res __unused, uint32_t size __unused)
658 {
659         uint8_t *walker = buf;
660         uint32_t min;
661
662         printf("Temperature History:\n");
663         printf("  %-30s: %d C\n", "Current Temperature", *walker++);
664         printf("  %-30s: %d C\n", "Reference Temperature", *walker++);
665         printf("  %-30s: %d C\n", "Maximum Temperature", *walker++);
666         printf("  %-30s: %d C\n", "Minimum Temperature", *walker++);
667         min = le32dec(walker);
668         walker += 4;
669         printf("  %-30s: %d:%02d:00\n", "Max Temperature Time", min / 60, min % 60);
670         min = le32dec(walker);
671         walker += 4;
672         printf("  %-30s: %d:%02d:00\n", "Over Temperature Duration", min / 60, min % 60);
673         min = le32dec(walker);
674         walker += 4;
675         printf("  %-30s: %d:%02d:00\n", "Min Temperature Time", min / 60, min % 60);
676 }
677
678 static void
679 print_hgst_info_ssd_perf(void *buf, uint16_t subtype __unused, uint8_t res, uint32_t size __unused)
680 {
681         uint8_t *walker = buf;
682         uint64_t val;
683
684         printf("SSD Performance Subpage Type %d:\n", res);
685         val = le64dec(walker);
686         walker += 8;
687         printf("  %-30s: %ju\n", "Host Read Commands", val);
688         val = le64dec(walker);
689         walker += 8;
690         printf("  %-30s: %ju\n", "Host Read Blocks", val);
691         val = le64dec(walker);
692         walker += 8;
693         printf("  %-30s: %ju\n", "Host Cache Read Hits Commands", val);
694         val = le64dec(walker);
695         walker += 8;
696         printf("  %-30s: %ju\n", "Host Cache Read Hits Blocks", val);
697         val = le64dec(walker);
698         walker += 8;
699         printf("  %-30s: %ju\n", "Host Read Commands Stalled", val);
700         val = le64dec(walker);
701         walker += 8;
702         printf("  %-30s: %ju\n", "Host Write Commands", val);
703         val = le64dec(walker);
704         walker += 8;
705         printf("  %-30s: %ju\n", "Host Write Blocks", val);
706         val = le64dec(walker);
707         walker += 8;
708         printf("  %-30s: %ju\n", "Host Write Odd Start Commands", val);
709         val = le64dec(walker);
710         walker += 8;
711         printf("  %-30s: %ju\n", "Host Write Odd End Commands", val);
712         val = le64dec(walker);
713         walker += 8;
714         printf("  %-30s: %ju\n", "Host Write Commands Stalled", val);
715         val = le64dec(walker);
716         walker += 8;
717         printf("  %-30s: %ju\n", "NAND Read Commands", val);
718         val = le64dec(walker);
719         walker += 8;
720         printf("  %-30s: %ju\n", "NAND Read Blocks", val);
721         val = le64dec(walker);
722         walker += 8;
723         printf("  %-30s: %ju\n", "NAND Write Commands", val);
724         val = le64dec(walker);
725         walker += 8;
726         printf("  %-30s: %ju\n", "NAND Write Blocks", val);
727         val = le64dec(walker);
728         walker += 8;
729         printf("  %-30s: %ju\n", "NAND Read Before Writes", val);
730 }
731
732 static void
733 print_hgst_info_firmware_load(void *buf, uint16_t subtype __unused, uint8_t res __unused, uint32_t size __unused)
734 {
735         uint8_t *walker = buf;
736
737         printf("Firmware Load Subpage:\n");
738         printf("  %-30s: %d\n", "Firmware Downloads", le32dec(walker));
739 }
740
741 static void
742 kv_indirect(void *buf, uint32_t subtype, uint8_t res, uint32_t size, struct subpage_print *sp, size_t nsp)
743 {
744         size_t i;
745
746         for (i = 0; i < nsp; i++, sp++) {
747                 if (sp->key == subtype) {
748                         sp->fn(buf, subtype, res, size);
749                         return;
750                 }
751         }
752         printf("No handler for page type %x\n", subtype);
753 }
754
755 static void
756 print_hgst_info_log(void *buf, uint32_t size __unused)
757 {
758         uint8_t *walker, *end, *subpage;
759         int pages;
760         uint16_t len;
761         uint8_t subtype, res;
762
763         printf("HGST Extra Info Log\n");
764         printf("===================\n");
765
766         walker = buf;
767         pages = *walker++;
768         walker++;
769         len = le16dec(walker);
770         walker += 2;
771         end = walker + len;             /* Length is exclusive of this header */
772         
773         while (walker < end) {
774                 subpage = walker + 4;
775                 subtype = *walker++ & 0x3f;     /* subtype */
776                 res = *walker++;                /* Reserved */
777                 len = le16dec(walker);
778                 walker += len + 2;              /* Length, not incl header */
779                 if (walker > end) {
780                         printf("Ooops! Off the end of the list\n");
781                         break;
782                 }
783                 kv_indirect(subpage, subtype, res, len, hgst_subpage, nitems(hgst_subpage));
784         }
785 }
786
787 /*
788  * Table of log page printer / sizing.
789  *
790  * This includes Intel specific pages that are widely implemented.
791  * Make sure you keep all the pages of one vendor together so -v help
792  * lists all the vendors pages.
793  */
794 static struct logpage_function {
795         uint8_t         log_page;
796         const char     *vendor;
797         const char     *name;
798         print_fn_t      print_fn;
799         size_t          size;
800 } logfuncs[] = {
801         {NVME_LOG_ERROR,                NULL,   "Drive Error Log",
802          print_log_error,               0},
803         {NVME_LOG_HEALTH_INFORMATION,   NULL,   "Health/SMART Data",
804          print_log_health,              sizeof(struct nvme_health_information_page)},
805         {NVME_LOG_FIRMWARE_SLOT,        NULL,   "Firmware Information",
806          print_log_firmware,            sizeof(struct nvme_firmware_page)},
807         {HGST_INFO_LOG,                 "hgst", "Detailed Health/SMART",
808          print_hgst_info_log,           DEFAULT_SIZE},
809         {HGST_INFO_LOG,                 "wds",  "Detailed Health/SMART",
810          print_hgst_info_log,           DEFAULT_SIZE},
811         {INTEL_LOG_TEMP_STATS,          "intel", "Temperature Stats",
812          print_intel_temp_stats,        sizeof(struct intel_log_temp_stats)},
813         {INTEL_LOG_READ_LAT_LOG,        "intel", "Read Latencies",
814          print_intel_read_lat_log,      DEFAULT_SIZE},
815         {INTEL_LOG_WRITE_LAT_LOG,       "intel", "Write Latencies",
816          print_intel_write_lat_log,     DEFAULT_SIZE},
817         {INTEL_LOG_ADD_SMART,           "intel", "Extra Health/SMART Data",
818          print_intel_add_smart,         DEFAULT_SIZE},
819         {INTEL_LOG_ADD_SMART,           "samsung", "Extra Health/SMART Data",
820          print_intel_add_smart,         DEFAULT_SIZE},
821
822         {0, NULL, NULL, NULL, 0},
823 };
824
825 static void
826 logpage_usage(void)
827 {
828         fprintf(stderr, "usage:\n");
829         fprintf(stderr, LOGPAGE_USAGE);
830         exit(1);
831 }
832
833 static void
834 logpage_help(void)
835 {
836         struct logpage_function         *f;
837         const char                      *v;
838
839         fprintf(stderr, "\n");
840         fprintf(stderr, "%-8s %-10s %s\n", "Page", "Vendor","Page Name");
841         fprintf(stderr, "-------- ---------- ----------\n");
842         for (f = logfuncs; f->log_page > 0; f++) {
843                 v = f->vendor == NULL ? "-" : f->vendor;
844                 fprintf(stderr, "0x%02x     %-10s %s\n", f->log_page, v, f->name);
845         }
846
847         exit(1);
848 }
849
850 void
851 logpage(int argc, char *argv[])
852 {
853         int                             fd, nsid;
854         int                             log_page = 0, pageflag = false;
855         int                             binflag = false, hexflag = false, ns_specified;
856         char                            ch, *p;
857         char                            cname[64];
858         uint32_t                        size;
859         void                            *buf;
860         const char                      *vendor = NULL;
861         struct logpage_function         *f;
862         struct nvme_controller_data     cdata;
863         print_fn_t                      print_fn;
864
865         while ((ch = getopt(argc, argv, "bp:xv:")) != -1) {
866                 switch (ch) {
867                 case 'b':
868                         binflag = true;
869                         break;
870                 case 'p':
871                         if (strcmp(optarg, "help") == 0)
872                                 logpage_help();
873
874                         /* TODO: Add human-readable ASCII page IDs */
875                         log_page = strtol(optarg, &p, 0);
876                         if (p != NULL && *p != '\0') {
877                                 fprintf(stderr,
878                                     "\"%s\" not valid log page id.\n",
879                                     optarg);
880                                 logpage_usage();
881                         }
882                         pageflag = true;
883                         break;
884                 case 'x':
885                         hexflag = true;
886                         break;
887                 case 'v':
888                         if (strcmp(optarg, "help") == 0)
889                                 logpage_help();
890                         vendor = optarg;
891                         break;
892                 }
893         }
894
895         if (!pageflag) {
896                 printf("Missing page_id (-p).\n");
897                 logpage_usage();
898         }
899
900         /* Check that a controller and/or namespace was specified. */
901         if (optind >= argc)
902                 logpage_usage();
903
904         if (strstr(argv[optind], NVME_NS_PREFIX) != NULL) {
905                 ns_specified = true;
906                 parse_ns_str(argv[optind], cname, &nsid);
907                 open_dev(cname, &fd, 1, 1);
908         } else {
909                 ns_specified = false;
910                 nsid = NVME_GLOBAL_NAMESPACE_TAG;
911                 open_dev(argv[optind], &fd, 1, 1);
912         }
913
914         read_controller_data(fd, &cdata);
915
916         /*
917          * The log page attribtues indicate whether or not the controller
918          * supports the SMART/Health information log page on a per
919          * namespace basis.
920          */
921         if (ns_specified) {
922                 if (log_page != NVME_LOG_HEALTH_INFORMATION)
923                         errx(1, "log page %d valid only at controller level",
924                             log_page);
925                 if (cdata.lpa.ns_smart == 0)
926                         errx(1,
927                             "controller does not support per namespace "
928                             "smart/health information");
929         }
930
931         print_fn = print_hex;
932         size = DEFAULT_SIZE;
933         if (binflag)
934                 print_fn = print_bin;
935         if (!binflag && !hexflag) {
936                 /*
937                  * See if there is a pretty print function for the specified log
938                  * page.  If one isn't found, we just revert to the default
939                  * (print_hex). If there was a vendor specified bt the user, and
940                  * the page is vendor specific, don't match the print function
941                  * unless the vendors match.
942                  */
943                 for (f = logfuncs; f->log_page > 0; f++) {
944                         if (f->vendor != NULL && vendor != NULL &&
945                             strcmp(f->vendor, vendor) != 0)
946                                 continue;
947                         if (log_page != f->log_page)
948                                 continue;
949                         print_fn = f->print_fn;
950                         size = f->size;
951                         break;
952                 }
953         }
954
955         if (log_page == NVME_LOG_ERROR) {
956                 size = sizeof(struct nvme_error_information_entry);
957                 size *= (cdata.elpe + 1);
958         }
959
960         /* Read the log page */
961         buf = get_log_buffer(size);
962         read_logpage(fd, log_page, nsid, buf, size);
963         print_fn(buf, size);
964
965         close(fd);
966         exit(0);
967 }