Author: imp
Date: Sat Nov 19 17:13:08 2016
New Revision: 308855
URL: https://svnweb.freebsd.org/changeset/base/308855

Log:
  Implement HGST Log page 0xc1, as documented in the HGST SN100 and
  SN150 product manuals. Subpage 0x32 is documented, but not implemented.
  
  Sponsored by: Netflix, Inc

Modified:
  head/sbin/nvmecontrol/logpage.c
  head/sys/dev/nvme/nvme.h

Modified: head/sbin/nvmecontrol/logpage.c
==============================================================================
--- head/sbin/nvmecontrol/logpage.c     Sat Nov 19 17:13:03 2016        
(r308854)
+++ head/sbin/nvmecontrol/logpage.c     Sat Nov 19 17:13:08 2016        
(r308855)
@@ -56,6 +56,25 @@ __FBSDID("$FreeBSD$");
 typedef void (*print_fn_t)(void *buf, uint32_t size);
 
 
+struct kv_name
+{
+       uint32_t key;
+       const char *name;
+};
+
+static const char *
+kv_lookup(const struct kv_name *kv, size_t kv_count, uint32_t key)
+{
+       static char bad[32];
+       size_t i;
+
+       for (i = 0; i < kv_count; i++, kv++)
+               if (kv->key == key)
+                       return kv->name;
+       snprintf(bad, sizeof(bad), "Attribute %#x", key);
+       return bad;
+}
+
 /*
  * 128-bit integer augments to standard values
  */
@@ -283,6 +302,405 @@ print_intel_temp_stats(void *buf, uint32
 }
 
 /*
+ * HGST's 0xc1 page. This is a grab bag of additional data. Please see
+ * https://www.hgst.com/sites/default/files/resources/US_SN150_ProdManual.pdf
+ * https://www.hgst.com/sites/default/files/resources/US_SN100_ProdManual.pdf
+ * Appendix A for details
+ */
+
+typedef void (*subprint_fn_t)(void *buf, uint16_t subtype, uint8_t res, 
uint32_t size);
+
+struct subpage_print
+{
+       uint16_t key;
+       subprint_fn_t fn;
+};
+
+static void print_hgst_info_write_errors(void *buf, uint16_t subtype, uint8_t 
res, uint32_t size);
+static void print_hgst_info_read_errors(void *buf, uint16_t subtype, uint8_t 
res, uint32_t size);
+static void print_hgst_info_verify_errors(void *buf, uint16_t subtype, uint8_t 
res, uint32_t size);
+static void print_hgst_info_self_test(void *buf, uint16_t subtype, uint8_t 
res, uint32_t size);
+static void print_hgst_info_background_scan(void *buf, uint16_t subtype, 
uint8_t res, uint32_t size);
+static void print_hgst_info_erase_errors(void *buf, uint16_t subtype, uint8_t 
res, uint32_t size);
+static void print_hgst_info_erase_counts(void *buf, uint16_t subtype, uint8_t 
res, uint32_t size);
+static void print_hgst_info_temp_history(void *buf, uint16_t subtype, uint8_t 
res, uint32_t size);
+static void print_hgst_info_ssd_perf(void *buf, uint16_t subtype, uint8_t res, 
uint32_t size);
+static void print_hgst_info_firmware_load(void *buf, uint16_t subtype, uint8_t 
res, uint32_t size);
+
+static struct subpage_print hgst_subpage[] = {
+       { 0x02, print_hgst_info_write_errors },
+       { 0x03, print_hgst_info_read_errors },
+       { 0x05, print_hgst_info_verify_errors },
+       { 0x10, print_hgst_info_self_test },
+       { 0x15, print_hgst_info_background_scan },
+       { 0x30, print_hgst_info_erase_errors },
+       { 0x31, print_hgst_info_erase_counts },
+       { 0x32, print_hgst_info_temp_history },
+       { 0x37, print_hgst_info_ssd_perf },
+       { 0x38, print_hgst_info_firmware_load },
+};
+
+/* Print a subpage that is basically just key value pairs */
+static void
+print_hgst_info_subpage_gen(void *buf, uint16_t subtype __unused, uint32_t 
size,
+    const struct kv_name *kv, size_t kv_count)
+{
+       uint8_t *wsp, *esp;
+       uint16_t ptype;
+       uint8_t plen;
+       uint64_t param;
+       int i;
+
+       wsp = buf;
+       esp = wsp + size;
+       while (wsp < esp) {
+               ptype = le16dec(wsp);
+               wsp += 2;
+               wsp++;                  /* Flags, just ignore */
+               plen = *wsp++;
+               param = 0;
+               for (i = 0; i < plen; i++)
+                       param |= (uint64_t)*wsp++ << (i * 8);
+               printf("  %-30s: %jd\n", kv_lookup(kv, kv_count, ptype), 
(uintmax_t)param);
+       }
+}
+
+static void
+print_hgst_info_write_errors(void *buf, uint16_t subtype, uint8_t res 
__unused, uint32_t size)
+{
+       static struct kv_name kv[] =
+       {
+               { 0x0000, "Corrected Without Delay" },
+               { 0x0001, "Corrected Maybe Delayed" },
+               { 0x0002, "Re-Writes" },
+               { 0x0003, "Errors Corrected" },
+               { 0x0004, "Correct Algorithm Used" },
+               { 0x0005, "Bytes Processed" },
+               { 0x0006, "Uncorrected Errors" },
+               { 0x8000, "Flash Write Commands" },
+               { 0x8001, "HGST Special" },
+       };
+
+       printf("Write Errors Subpage:\n");
+       print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv));
+}
+
+static void
+print_hgst_info_read_errors(void *buf, uint16_t subtype, uint8_t res __unused, 
uint32_t size)
+{
+       static struct kv_name kv[] =
+       {
+               { 0x0000, "Corrected Without Delay" },
+               { 0x0001, "Corrected Maybe Delayed" },
+               { 0x0002, "Re-Reads" },
+               { 0x0003, "Errors Corrected" },
+               { 0x0004, "Correct Algorithm Used" },
+               { 0x0005, "Bytes Processed" },
+               { 0x0006, "Uncorrected Errors" },
+               { 0x8000, "Flash Read Commands" },
+               { 0x8001, "XOR Recovered" },
+               { 0x8002, "Total Corrected Bits" },
+       };
+
+       printf("Read Errors Subpage:\n");
+       print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv));
+}
+
+static void
+print_hgst_info_verify_errors(void *buf, uint16_t subtype, uint8_t res 
__unused, uint32_t size)
+{
+       static struct kv_name kv[] =
+       {
+               { 0x0000, "Corrected Without Delay" },
+               { 0x0001, "Corrected Maybe Delayed" },
+               { 0x0002, "Re-Reads" },
+               { 0x0003, "Errors Corrected" },
+               { 0x0004, "Correct Algorithm Used" },
+               { 0x0005, "Bytes Processed" },
+               { 0x0006, "Uncorrected Errors" },
+               { 0x8000, "Commands Processed" },
+       };
+
+       printf("Verify Errors Subpage:\n");
+       print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv));
+}
+
+static void
+print_hgst_info_self_test(void *buf, uint16_t subtype __unused, uint8_t res 
__unused, uint32_t size)
+{
+       size_t i;
+       uint8_t *walker = buf;
+       uint16_t code, hrs;
+       uint32_t lba;
+
+       printf("Self Test Subpage:\n");
+       for (i = 0; i < size / 20; i++) {       /* Each entry is 20 bytes */
+               code = le16dec(walker);
+               walker += 2;
+               walker++;                       /* Ignore fixed flags */
+               if (*walker == 0)               /* Last entry is zero length */
+                       break;
+               if (*walker++ != 0x10) {
+                       printf("Bad length for self test report\n");
+                       return;
+               }
+               printf("  %-30s: %d\n", "Recent Test", code);
+               printf("    %-28s: %#x\n", "Self-Test Results", *walker & 0xf);
+               printf("    %-28s: %#x\n", "Self-Test Code", (*walker >> 5) & 
0x7);
+               walker++;
+               printf("    %-28s: %#x\n", "Self-Test Number", *walker++);
+               hrs = le16dec(walker);
+               walker += 2;
+               lba = le32dec(walker);
+               walker += 4;
+               printf("    %-28s: %u\n", "Total Power On Hrs", hrs);
+               printf("    %-28s: %#jx (%jd)\n", "LBA", (uintmax_t)lba, 
(uintmax_t)lba);
+               printf("    %-28s: %#x\n", "Sense Key", *walker++ & 0xf);
+               printf("    %-28s: %#x\n", "Additional Sense Code", *walker++);
+               printf("    %-28s: %#x\n", "Additional Sense Qualifier", 
*walker++);
+               printf("    %-28s: %#x\n", "Vendor Specific Detail", *walker++);
+       }
+}
+
+static void
+print_hgst_info_background_scan(void *buf, uint16_t subtype __unused, uint8_t 
res __unused, uint32_t size)
+{
+       uint8_t *walker = buf;
+       uint8_t status;
+       uint16_t code, nscan, progress;
+       uint32_t pom, nand;
+
+       printf("Background Media Scan Subpage:\n");
+       /* Decode the header */
+       code = le16dec(walker);
+       walker += 2;
+       walker++;                       /* Ignore fixed flags */
+       if (*walker++ != 0x10) {
+               printf("Bad length for background scan header\n");
+               return;
+       }
+       if (code != 0) {
+               printf("Expceted code 0, found code %#x\n", code);
+               return;
+       }
+       pom = le32dec(walker);
+       walker += 4;
+       walker++;                       /* Reserved */
+       status = *walker++;
+       nscan = le16dec(walker);
+       walker += 2;
+       progress = le16dec(walker);
+       walker += 2;
+       walker += 6;                    /* Reserved */
+       printf("  %-30s: %d\n", "Power On Minutes", pom);
+       printf("  %-30s: %x (%s)\n", "BMS Status", status,
+           status == 0 ? "idle" : (status == 1 ? "active" : (status == 8 ? 
"suspended" : "unknown")));
+       printf("  %-30s: %d\n", "Number of BMS", nscan);
+       printf("  %-30s: %d\n", "Progress Current BMS", progress);
+       /* Report retirements */
+       if (walker - (uint8_t *)buf != 20) {
+               printf("Coding error, offset not 20\n");
+               return;
+       }
+       size -= 20;
+       printf("  %-30s: %d\n", "BMS retirements", size / 0x18);
+       while (size > 0) {
+               code = le16dec(walker);
+               walker += 2;
+               walker++;
+               if (*walker++ != 0x14) {
+                       printf("Bad length parameter\n");
+                       return;
+               }
+               pom = le32dec(walker);
+               walker += 4;
+               /*
+                * Spec sheet says the following are hard coded, if true, just
+                * print the NAND retirement.
+                */
+               if (walker[0] == 0x41 &&
+                   walker[1] == 0x0b &&
+                   walker[2] == 0x01 &&
+                   walker[3] == 0x00 &&
+                   walker[4] == 0x00 &&
+                   walker[5] == 0x00 &&
+                   walker[6] == 0x00 &&
+                   walker[7] == 0x00) {
+                       walker += 8;
+                       walker += 4;    /* Skip reserved */
+                       nand = le32dec(walker);
+                       walker += 4;
+                       printf("  %-30s: %d\n", "Retirement number", code);
+                       printf("    %-28s: %#x\n", "NAND (C/T)BBBPPP", nand);
+               } else {
+                       printf("Parameter %#x entry corrupt\n", code);
+                       walker += 16;
+               }
+       }
+}
+
+static void
+print_hgst_info_erase_errors(void *buf, uint16_t subtype __unused, uint8_t res 
__unused, uint32_t size)
+{
+       static struct kv_name kv[] =
+       {
+               { 0x0000, "Corrected Without Delay" },
+               { 0x0001, "Corrected Maybe Delayed" },
+               { 0x0002, "Re-Erase" },
+               { 0x0003, "Errors Corrected" },
+               { 0x0004, "Correct Algorithm Used" },
+               { 0x0005, "Bytes Processed" },
+               { 0x0006, "Uncorrected Errors" },
+               { 0x8000, "Flash Erase Commands" },
+               { 0x8001, "Mfg Defect Count" },
+               { 0x8002, "Grown Defect Count" },
+               { 0x8003, "Erase Count -- User" },
+               { 0x8004, "Erase Count -- System" },
+       };
+
+       printf("Erase Errors Subpage:\n");
+       print_hgst_info_subpage_gen(buf, subtype, size, kv, nitems(kv));
+}
+
+static void
+print_hgst_info_erase_counts(void *buf, uint16_t subtype, uint8_t res 
__unused, uint32_t size)
+{
+       /* My drive doesn't export this -- so not coding up */
+       printf("XXX: Erase counts subpage: %p, %#x %d\n", buf, subtype, size);
+}
+
+static void
+print_hgst_info_temp_history(void *buf, uint16_t subtype __unused, uint8_t res 
__unused, uint32_t size __unused)
+{
+       uint8_t *walker = buf;
+       uint32_t min;
+
+       printf("Temperature History:\n");
+       printf("  %-30s: %d C\n", "Current Temperature", *walker++);
+       printf("  %-30s: %d C\n", "Reference Temperature", *walker++);
+       printf("  %-30s: %d C\n", "Maximum Temperature", *walker++);
+       printf("  %-30s: %d C\n", "Minimum Temperature", *walker++);
+       min = le32dec(walker);
+       walker += 4;
+       printf("  %-30s: %d:%02d:00\n", "Max Temperture Time", min / 60, min % 
60);
+       min = le32dec(walker);
+       walker += 4;
+       printf("  %-30s: %d:%02d:00\n", "Over Temperture Duration", min / 60, 
min % 60);
+       min = le32dec(walker);
+       walker += 4;
+       printf("  %-30s: %d:%02d:00\n", "Min Temperture Time", min / 60, min % 
60);
+}
+
+static void
+print_hgst_info_ssd_perf(void *buf, uint16_t subtype __unused, uint8_t res, 
uint32_t size __unused)
+{
+       uint8_t *walker = buf;
+       uint64_t val;
+
+       printf("SSD Performance Subpage Type %d:\n", res);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "Host Read Commands", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "Host Read Blocks", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "Host Cache Read Hits Commands", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "Host Cache Read Hits Blocks", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "Host Read Commands Stalled", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "Host Write Commands", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "Host Write Blocks", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "Host Write Odd Start Commands", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "Host Write Odd End Commands", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "Host Write Commands Stalled", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "NAND Read Commands", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "NAND Read Blocks", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "NAND Write Commands", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "NAND Write Blocks", val);
+       val = le64dec(walker);
+       walker += 8;
+       printf("  %-30s: %ju\n", "NAND Read Before Writes", val);
+}
+
+static void
+print_hgst_info_firmware_load(void *buf, uint16_t subtype __unused, uint8_t 
res __unused, uint32_t size __unused)
+{
+       uint8_t *walker = buf;
+
+       printf("Firmware Load Subpage:\n");
+       printf("  %-30s: %d\n", "Firmware Downloads", le32dec(walker));
+}
+
+static void
+kv_indirect(void *buf, uint32_t subtype, uint8_t res, uint32_t size, struct 
subpage_print *sp, size_t nsp)
+{
+       size_t i;
+
+       for (i = 0; i < nsp; i++, sp++) {
+               if (sp->key == subtype) {
+                       sp->fn(buf, subtype, res, size);
+                       return;
+               }
+       }
+       printf("No handler for page type %x\n", subtype);
+}
+
+static void
+print_hgst_info_log(void *buf, uint32_t size __unused)
+{
+       uint8_t *walker, *end, *subpage;
+       int pages;
+       uint16_t len;
+       uint8_t subtype, res;
+
+       printf("HGST Extra Info Log\n");
+       printf("===================\n");
+
+       walker = buf;
+       pages = *walker++;
+       walker++;
+       len = le16dec(walker);
+       walker += 2;
+       end = walker + len;             /* Length is exclusive of this header */
+       
+       while (walker < end) {
+               subpage = walker + 4;
+               subtype = *walker++ & 0x3f;     /* subtype */
+               res = *walker++;                /* Reserved */
+               len = le16dec(walker);
+               walker += len + 2;              /* Length, not incl header */
+               if (walker > end) {
+                       printf("Ooops! Off the end of the list\n");
+                       break;
+               }
+               kv_indirect(subpage, subtype, res, len, hgst_subpage, 
nitems(hgst_subpage));
+       }
+}
+
+/*
  * Table of log page printer / sizing.
  *
  * This includes Intel specific pages that are widely implemented. Not
@@ -301,6 +719,8 @@ static struct logpage_function {
         sizeof(struct nvme_firmware_page)},
        {INTEL_LOG_TEMP_STATS,          print_intel_temp_stats,
         sizeof(struct intel_log_temp_stats)},
+       {HGST_INFO_LOG,                 print_hgst_info_log,
+        DEFAULT_SIZE},
        {0,                             NULL,
         0},
 };

Modified: head/sys/dev/nvme/nvme.h
==============================================================================
--- head/sys/dev/nvme/nvme.h    Sat Nov 19 17:13:03 2016        (r308854)
+++ head/sys/dev/nvme/nvme.h    Sat Nov 19 17:13:08 2016        (r308855)
@@ -669,16 +669,21 @@ enum nvme_log_page {
        /* 0x80-0xBF - I/O command set specific */
        NVME_LOG_RES_NOTIFICATION       = 0x80,
        /* 0xC0-0xFF - vendor specific */
-/*
- * The following are Intel Specific log pages, but they seem to
- * be widely implemented.
- */
+
+       /*
+        * The following are Intel Specific log pages, but they seem
+        * to be widely implemented.
+        */
        INTEL_LOG_READ_LAT_LOG          = 0xc1,
        INTEL_LOG_WRITE_LAT_LOG         = 0xc2,
        INTEL_LOG_TEMP_STATS            = 0xc5,
        INTEL_LOG_ADD_SMART             = 0xca,
        INTEL_LOG_DRIVE_MKT_NAME        = 0xdd,
 
+       /*
+        * HGST log page, with lots ofs sub pages.
+        */
+       HGST_INFO_LOG                   = 0xc1,
 };
 
 struct nvme_error_information_entry {
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