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Implement 5 wdc-specific nvme control options for their HGST drives:

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wdc cap-diag		Capture diagnostic data from drive
	wdc drive-log		Capture drive history data from drive
	wdc get-crash-dump	Retrieve firmware crash dump from drive
This commit is contained in:
Warner Losh 2017-02-04 05:53:00 +00:00
parent ccac2ba7ec
commit ffce99f502
5 changed files with 365 additions and 1 deletions
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2
sbin/nvmecontrol/Makefile
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@ -3,7 +3,7 @@
PACKAGE=runtime
PROG= nvmecontrol
SRCS= nvmecontrol.c devlist.c firmware.c identify.c logpage.c \
perftest.c reset.c nvme_util.c power.c
perftest.c reset.c nvme_util.c power.c wdc.c
MAN= nvmecontrol.8
.PATH: ${.CURDIR}/../../sys/dev/nvme

18
sbin/nvmecontrol/nvmecontrol.8
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@ -75,6 +75,24 @@
.Op Fl l
.Op Fl p power_state
.Op fl w workload_hint
.Nm
.Ic wdc cap-diag
.Op Fl o path_template
.Aq device id
.Nm
.Ic wdc drive-log
.Op Fl o path_template
.Aq device id
.Nm
.Ic wdc get-crash-dump
.Op Fl o path_template
.Aq device id
.\" .Nm
.\" .Ic wdc purge
.\" .Aq device id
.\" .Nm
.\" .Ic wdc purge-monitor
.\" .Aq device id
.Sh DESCRIPTION
NVM Express (NVMe) is a storage protocol standard, for SSDs and other
high-speed storage devices over PCI Express.

1
sbin/nvmecontrol/nvmecontrol.c
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@ -54,6 +54,7 @@ static struct nvme_function funcs[] = {
{"logpage", logpage, LOGPAGE_USAGE},
{"firmware", firmware, FIRMWARE_USAGE},
{"power", power, POWER_USAGE},
{"wdc", wdc, WDC_USAGE},
{NULL, NULL, NULL},
};

4
sbin/nvmecontrol/nvmecontrol.h
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@ -66,6 +66,9 @@ struct nvme_function {
#define POWER_USAGE \
" nvmecontrol power [-l] [-p new-state [-w workload-hint]] <controller id>\n"
#define WDC_USAGE \
" nvmecontrol wdc (cap-diag|drive-log|get-crash-dump|purge|purge-montior)\n"
void devlist(int argc, char *argv[]);
void identify(int argc, char *argv[]);
void perftest(int argc, char *argv[]);
@ -73,6 +76,7 @@ void reset(int argc, char *argv[]);
void logpage(int argc, char *argv[]);
void firmware(int argc, char *argv[]);
void power(int argc, char *argv[]);
void wdc(int argc, char *argv[]);
int open_dev(const char *str, int *fd, int show_error, int exit_on_error);
void parse_ns_str(const char *ns_str, char *ctrlr_str, int *nsid);

341
sbin/nvmecontrol/wdc.c Normal file
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@ -0,0 +1,341 @@
/*-
* Copyright (c) 2017 Netflix, Inc
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/ioccom.h>
#include <sys/endian.h>
#include <ctype.h>
#include <err.h>
#include <fcntl.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "nvmecontrol.h"
#define WDC_NVME_TOC_SIZE 8
#define WDC_NVME_CAP_DIAG_OPCODE 0xe6
#define WDC_NVME_CAP_DIAG_CMD 0x0000
#define WDC_NVME_DIAG_OPCODE 0xc6
#define WDC_NVME_DRIVE_LOG_SIZE_CMD 0x0120
#define WDC_NVME_DRIVE_LOG_CMD 0x0020
#define WDC_NVME_CRASH_DUMP_SIZE_CMD 0x0320
#define WDC_NVME_CRASH_DUMP_CMD 0x0420
#define WDC_NVME_PFAIL_DUMP_SIZE_CMD 0x0520
#define WDC_NVME_PFAIL_DUMP_CMD 0x0620
#define WDC_NVME_CLEAR_DUMP_OPCODE 0xff
#define WDC_NVME_CLEAR_CRASH_DUMP_CMD 0x0503
#define WDC_NVME_CLEAR_PFAIL_DUMP_CMD 0x0603
static void wdc_cap_diag(int argc, char *argv[]);
static void wdc_drive_log(int argc, char *argv[]);
static void wdc_get_crash_dump(int argc, char *argv[]);
static void wdc_purge(int argc, char *argv[]);
static void wdc_purge_monitor(int argc, char *argv[]);
#define WDC_CAP_DIAG_USAGE "\tnvmecontrol wdc cap-diag [-o path-template]\n"
#define WDC_DRIVE_LOG_USAGE "\tnvmecontrol wdc drive-log [-o path-template]\n"
#define WDC_GET_CRASH_DUMP_USAGE "\tnvmecontrol wdc get-crash-dump [-o path-template]\n"
#define WDC_PURGE_USAGE "\tnvmecontrol wdc purge [-o path-template]\n"
#define WDC_PURGE_MONITOR_USAGE "\tnvmecontrol wdc purge-montor\n"
static struct nvme_function wdc_funcs[] = {
{"cap-diag", wdc_cap_diag, WDC_CAP_DIAG_USAGE},
{"drive-log", wdc_drive_log, WDC_DRIVE_LOG_USAGE},
{"get-crash-dump", wdc_get_crash_dump, WDC_GET_CRASH_DUMP_USAGE},
{"purge", wdc_purge, WDC_PURGE_USAGE},
{"purge_monitor", wdc_purge_monitor, WDC_PURGE_MONITOR_USAGE},
{NULL, NULL, NULL},
};
static void
wdc_append_serial_name(int fd, char *buf, size_t len, const char *suffix)
{
struct nvme_controller_data cdata;
char sn[NVME_SERIAL_NUMBER_LENGTH + 1];
char *walker;
len -= strlen(buf);
buf += strlen(buf);
read_controller_data(fd, &cdata);
memcpy(sn, cdata.sn, NVME_SERIAL_NUMBER_LENGTH);
walker = sn + NVME_SERIAL_NUMBER_LENGTH - 1;
while (walker > sn && *walker == ' ')
walker--;
*walker = '\0';
snprintf(buf, len, "%s%s.bin", sn, suffix);
}
static void
wdc_get_data(int fd, uint32_t opcode, uint32_t len, uint32_t off, uint32_t cmd,
uint8_t *buffer, size_t buflen)
{
struct nvme_pt_command pt;
memset(&pt, 0, sizeof(pt));
pt.cmd.opc = opcode;
pt.cmd.cdw10 = len / sizeof(uint32_t); /* - 1 like all the others ??? */
pt.cmd.cdw11 = off / sizeof(uint32_t);
pt.cmd.cdw12 = cmd;
pt.buf = buffer;
pt.len = buflen;
pt.is_read = 1;
// printf("opcode %#x cdw10(len) %#x cdw11(offset?) %#x cdw12(cmd/sub) %#x buflen %zd\n",
// (int)opcode, (int)cdw10, (int)cdw11, (int)cdw12, buflen);
if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
err(1, "wdc_get_data request failed");
if (nvme_completion_is_error(&pt.cpl))
errx(1, "wdc_get_data request returned error");
}
static void
wdc_do_dump(int fd, char *tmpl, const char *suffix, uint32_t opcode,
uint32_t size_cmd, uint32_t cmd, int len_off)
{
int fd2;
uint8_t *buf;
uint32_t len, resid, offset;
wdc_append_serial_name(fd, tmpl, MAXPATHLEN, suffix);
buf = aligned_alloc(PAGE_SIZE, WDC_NVME_TOC_SIZE);
if (buf == NULL)
errx(1, "Can't get buffer to get size");
wdc_get_data(fd, opcode, WDC_NVME_TOC_SIZE,
0, size_cmd, buf, WDC_NVME_TOC_SIZE);
len = be32dec(buf + len_off);
if (len == 0)
errx(1, "No data for %s", suffix);
printf("Dumping %d bytes to %s\n", len, tmpl);
/* XXX overwrite protection? */
fd2 = open(tmpl, O_WRONLY | O_CREAT | O_TRUNC);
if (fd2 < 0)
err(1, "open %s", tmpl);
offset = 0;
buf = aligned_alloc(PAGE_SIZE, NVME_MAX_XFER_SIZE);
if (buf == NULL)
errx(1, "Can't get buffer to read dump");
while (len > 0) {
resid = len > NVME_MAX_XFER_SIZE ? NVME_MAX_XFER_SIZE : len;
wdc_get_data(fd, opcode, resid, offset, cmd, buf, resid);
if (write(fd2, buf, resid) != resid)
err(1, "write");
offset += resid;
len -= resid;
}
free(buf);
close(fd2);
}
static void
wdc_do_clear_dump(int fd, uint32_t opcode, uint32_t cmd)
{
struct nvme_pt_command pt;
memset(&pt, 0, sizeof(pt));
pt.cmd.opc = opcode;
pt.cmd.cdw12 = cmd;
if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
err(1, "wdc_do_clear_dump request failed");
if (nvme_completion_is_error(&pt.cpl))
errx(1, "wdc_do_clear_dump request returned error");
}
static void
wdc_cap_diag_usage()
{
fprintf(stderr, "usage:\n");
fprintf(stderr, WDC_CAP_DIAG_USAGE);
exit(1);
}
static void
wdc_cap_diag(int argc, char *argv[])
{
char path_tmpl[MAXPATHLEN];
int ch, fd;
path_tmpl[0] = '\0';
while ((ch = getopt(argc, argv, "o:")) != -1) {
switch ((char)ch) {
case 'o':
strlcpy(path_tmpl, optarg, MAXPATHLEN);
break;
default:
wdc_cap_diag_usage();
}
}
/* Check that a controller was specified. */
if (optind >= argc)
wdc_cap_diag_usage();
open_dev(argv[optind], &fd, 1, 1);
wdc_do_dump(fd, path_tmpl, "cap_diag", WDC_NVME_CAP_DIAG_OPCODE,
WDC_NVME_CAP_DIAG_CMD, WDC_NVME_CAP_DIAG_CMD, 4);
close(fd);
exit(1);
}
static void
wdc_drive_log_usage()
{
fprintf(stderr, "usage:\n");
fprintf(stderr, WDC_DRIVE_LOG_USAGE);
exit(1);
}
static void
wdc_drive_log(int argc, char *argv[])
{
char path_tmpl[MAXPATHLEN];
int ch, fd;
path_tmpl[0] = '\0';
while ((ch = getopt(argc, argv, "o:")) != -1) {
switch ((char)ch) {
case 'o':
strlcpy(path_tmpl, optarg, MAXPATHLEN);
break;
default:
wdc_drive_log_usage();
}
}
/* Check that a controller was specified. */
if (optind >= argc)
wdc_drive_log_usage();
open_dev(argv[optind], &fd, 1, 1);
wdc_do_dump(fd, path_tmpl, "drive_log", WDC_NVME_DIAG_OPCODE,
WDC_NVME_DRIVE_LOG_SIZE_CMD, WDC_NVME_DRIVE_LOG_CMD, 0);
close(fd);
exit(1);
}
static void
wdc_get_crash_dump_usage()
{
fprintf(stderr, "usage:\n");
fprintf(stderr, WDC_CAP_DIAG_USAGE);
exit(1);
}
static void
wdc_get_crash_dump(int argc, char *argv[])
{
char path_tmpl[MAXPATHLEN];
int ch, fd;
while ((ch = getopt(argc, argv, "o:")) != -1) {
switch ((char)ch) {
case 'o':
strlcpy(path_tmpl, optarg, MAXPATHLEN);
break;
default:
wdc_get_crash_dump_usage();
}
}
/* Check that a controller was specified. */
if (optind >= argc)
wdc_get_crash_dump_usage();
open_dev(argv[optind], &fd, 1, 1);
wdc_do_dump(fd, path_tmpl, "crash_dump", WDC_NVME_DIAG_OPCODE,
WDC_NVME_CRASH_DUMP_SIZE_CMD, WDC_NVME_CRASH_DUMP_CMD, 0);
wdc_do_clear_dump(fd, WDC_NVME_CLEAR_DUMP_OPCODE,
WDC_NVME_CLEAR_CRASH_DUMP_CMD);
// wdc_led_beacon_disable(fd);
wdc_do_dump(fd, path_tmpl, "pfail_dump", WDC_NVME_DIAG_OPCODE,
WDC_NVME_PFAIL_DUMP_SIZE_CMD, WDC_NVME_PFAIL_DUMP_CMD, 0);
wdc_do_clear_dump(fd, WDC_NVME_CLEAR_DUMP_OPCODE,
WDC_NVME_CLEAR_PFAIL_DUMP_CMD);
close(fd);
exit(1);
}
static void
wdc_purge(int argc, char *argv[])
{
char path_tmpl[MAXPATHLEN];
int ch;
while ((ch = getopt(argc, argv, "o:")) != -1) {
switch ((char)ch) {
case 'o':
strlcpy(path_tmpl, optarg, MAXPATHLEN);
break;
default:
wdc_cap_diag_usage();
}
}
printf("purge has not been implemented.\n");
exit(1);
}
static void
wdc_purge_monitor(int argc, char *argv[])
{
char path_tmpl[MAXPATHLEN];
int ch;
while ((ch = getopt(argc, argv, "o:")) != -1) {
switch ((char)ch) {
case 'o':
strlcpy(path_tmpl, optarg, MAXPATHLEN);
break;
default:
wdc_cap_diag_usage();
}
}
printf("purge has not been implemented.\n");
exit(1);
}
void
wdc(int argc, char *argv[])
{
dispatch(argc, argv, wdc_funcs);
}