diff options
Diffstat (limited to 'sbin/nvmecontrol')
| -rw-r--r-- | sbin/nvmecontrol/nvmecontrol.8 | 12 | ||||
| -rw-r--r-- | sbin/nvmecontrol/nvmecontrol.c | 41 |
2 files changed, 51 insertions, 2 deletions
diff --git a/sbin/nvmecontrol/nvmecontrol.8 b/sbin/nvmecontrol/nvmecontrol.8 index e726cbc..7e26240 100644 --- a/sbin/nvmecontrol/nvmecontrol.8 +++ b/sbin/nvmecontrol/nvmecontrol.8 @@ -33,7 +33,7 @@ .\" .\" $FreeBSD$ .\" -.Dd September 17, 2012 +.Dd March 26, 2013 .Dt NVMECONTROL 8 .Os .Sh NAME @@ -54,7 +54,10 @@ .Op Fl p .Aq Fl s Ar size_in_bytes .Aq Fl t Ar time_in_sec -.Aq device id +.Aq namespace id +.Nm +.Ic reset +.Aq controller id .Sh DESCRIPTION NVM Express (NVMe) is a storage protocol standard, for SSDs and other high-speed storage devices over PCI Express. @@ -62,6 +65,7 @@ high-speed storage devices over PCI Express. .Dl nvmecontrol devlist .Pp Display a list of NVMe controllers and namespaces along with their device nodes. +.Pp .Dl nvmecontrol identify nvme0 .Pp Display a human-readable summary of the nvme0 IDENTIFY_CONTROLLER data. @@ -76,6 +80,10 @@ Display a hexadecimal dump of the nvme0 IDENTIFY_NAMESPACE data for namespace Run a performance test on nvme0ns1 using 32 kernel threads for 30 seconds. Each thread will issue a single 512 byte read command. Results are printed to stdout when 30 seconds expires. +.Pp +.Dl nvmecontrol reset nvme0 +.Pp +Perform a controller-level reset of the nvme0 controller. .Sh AUTHORS .An -nosplit .Nm diff --git a/sbin/nvmecontrol/nvmecontrol.c b/sbin/nvmecontrol/nvmecontrol.c index 6abd3f5..b6b6908 100644 --- a/sbin/nvmecontrol/nvmecontrol.c +++ b/sbin/nvmecontrol/nvmecontrol.c @@ -56,6 +56,9 @@ __FBSDID("$FreeBSD$"); " <-i intr|wait> [-f refthread] [-p]\n" \ " <namespace id>\n" +#define RESET_USAGE \ +" nvmecontrol reset <controller id>\n" + static void perftest_usage(void); static void @@ -64,6 +67,7 @@ usage(void) fprintf(stderr, "usage:\n"); fprintf(stderr, DEVLIST_USAGE); fprintf(stderr, IDENTIFY_USAGE); + fprintf(stderr, RESET_USAGE); fprintf(stderr, PERFTEST_USAGE); exit(EX_USAGE); } @@ -580,6 +584,41 @@ perftest(int argc, char *argv[]) exit(EX_OK); } +static void +reset_ctrlr(int argc, char *argv[]) +{ + struct stat devstat; + char path[64]; + int ch, fd; + + while ((ch = getopt(argc, argv, "")) != -1) { + switch ((char)ch) { + default: + usage(); + } + } + + sprintf(path, "/dev/%s", argv[optind]); + + if (stat(path, &devstat) != 0) { + printf("Invalid device node '%s'.\n", path); + exit(EX_IOERR); + } + + fd = open(path, O_RDWR); + if (fd < 0) { + printf("Could not open %s.\n", path); + exit(EX_NOPERM); + } + + if (ioctl(fd, NVME_RESET_CONTROLLER) == -1) { + printf("ioctl to %s failed.\n", path); + exit(EX_IOERR); + } + + exit(EX_OK); +} + int main(int argc, char *argv[]) { @@ -593,6 +632,8 @@ main(int argc, char *argv[]) identify(argc-1, &argv[1]); else if (strcmp(argv[1], "perftest") == 0) perftest(argc-1, &argv[1]); + else if (strcmp(argv[1], "reset") == 0) + reset_ctrlr(argc-1, &argv[1]); usage(); |
