Author: imp
Date: Fri Dec 9 23:37:14 2016
New Revision: 309777
URL: https://svnweb.freebsd.org/changeset/base/309777
Log:
Implement Intel's log page 0xc1 (Read Command Latency Log) and page
0xc1 (Write Command Latency Log).
Sponsored By: Netflix, Inc
Modified:
head/sbin/nvmecontrol/logpage.c
Modified: head/sbin/nvmecontrol/logpage.c
==============================================================================
--- head/sbin/nvmecontrol/logpage.c Fri Dec 9 23:37:11 2016
(r309776)
+++ head/sbin/nvmecontrol/logpage.c Fri Dec 9 23:37:14 2016
(r309777)
@@ -324,6 +324,47 @@ print_intel_temp_stats(void *buf, uint32
printf("Estimated Temperature Offset: %ju C/K\n",
(uintmax_t)temp->est_offset);
}
+/*
+ * Format from Table 22, section 5.7 IO Command Latency Statistics.
+ * Read and write stats pages have identical encoding.
+ */
+static void
+print_intel_read_write_lat_log(void *buf, uint32_t size __unused)
+{
+ const char *walker = buf;
+ int i;
+
+ printf("Major: %d\n", le16dec(walker + 0));
+ printf("Minor: %d\n", le16dec(walker + 2));
+ for (i = 0; i < 32; i++)
+ printf("%4dus-%4dus: %ju\n", i * 32, (i + 1) *
32, (uintmax_t)le32dec(walker + 4 + i * 4));
+ for (i = 1; i < 32; i++)
+ printf("%4dms-%4dms: %ju\n", i, i + 1,
(uintmax_t)le32dec(walker + 132 + i * 4));
+ for (i = 1; i < 32; i++)
+ printf("%4dms-%4dms: %ju\n", i * 32, (i + 1) *
32, (uintmax_t)le32dec(walker + 256 + i * 4));
+}
+
+static void
+print_intel_read_lat_log(void *buf, uint32_t size)
+{
+
+ printf("Intel Read Latency Log\n");
+ printf("======================\n");
+ print_intel_read_write_lat_log(buf, size);
+}
+
+static void
+print_intel_write_lat_log(void *buf, uint32_t size)
+{
+
+ printf("Intel Write Latency Log\n");
+ printf("=======================\n");
+ print_intel_read_write_lat_log(buf, size);
+}
+
+/*
+ * Table 19. 5.4 SMART Attributes
+ */
static void
print_intel_add_smart(void *buf, uint32_t size __unused)
{
@@ -803,11 +844,15 @@ static struct logpage_function {
sizeof(struct nvme_health_information_page)},
{NVME_LOG_FIRMWARE_SLOT, NULL, print_log_firmware,
sizeof(struct nvme_firmware_page)},
+ {HGST_INFO_LOG, "hgst", print_hgst_info_log,
+ DEFAULT_SIZE},
{INTEL_LOG_TEMP_STATS, "intel", print_intel_temp_stats,
sizeof(struct intel_log_temp_stats)},
- {INTEL_LOG_ADD_SMART, "intel", print_intel_add_smart,
+ {INTEL_LOG_READ_LAT_LOG, "intel", print_intel_read_lat_log,
DEFAULT_SIZE},
- {HGST_INFO_LOG, "hgst", print_hgst_info_log,
+ {INTEL_LOG_WRITE_LAT_LOG, "intel", print_intel_write_lat_log,
+ DEFAULT_SIZE},
+ {INTEL_LOG_ADD_SMART, "intel", print_intel_add_smart,
DEFAULT_SIZE},
{0, NULL, NULL, 0},
};
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