Author: jimharris
Date: Mon Sep 17 21:26:55 2012
New Revision: 240620
URL: http://svn.freebsd.org/changeset/base/240620
Log:
Add nvmecontrol(8) source code and beginnings of a man page to the tree.
Sponsored by: Intel
Contributions from: Joe Golio/EMC <joseph dot golio at emc dot com>
Added:
head/sbin/nvmecontrol/
head/sbin/nvmecontrol/Makefile (contents, props changed)
head/sbin/nvmecontrol/nvmecontrol.8 (contents, props changed)
head/sbin/nvmecontrol/nvmecontrol.c (contents, props changed)
Added: head/sbin/nvmecontrol/Makefile
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sbin/nvmecontrol/Makefile Mon Sep 17 21:26:55 2012
(r240620)
@@ -0,0 +1,6 @@
+# $FreeBSD$
+
+PROG= nvmecontrol
+MAN= nvmecontrol.8
+
+.include <bsd.prog.mk>
Added: head/sbin/nvmecontrol/nvmecontrol.8
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sbin/nvmecontrol/nvmecontrol.8 Mon Sep 17 21:26:55 2012
(r240620)
@@ -0,0 +1,87 @@
+.\"
+.\" Copyright (c) 2012 Intel Corporation
+.\" 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,
+.\" without modification.
+.\" 2. Redistributions in binary form must reproduce at minimum a disclaimer
+.\" substantially similar to the "NO WARRANTY" disclaimer below
+.\" ("Disclaimer") and any redistribution must be conditioned upon
+.\" including a substantially similar Disclaimer requirement for further
+.\" binary redistribution.
+.\"
+.\" NO WARRANTY
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+.\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+.\" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+.\" HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+.\"
+.\" nvmecontrol man page.
+.\"
+.\" Author: Jim Harris <jimhar...@freebsd.org>
+.\"
+.\" $FreeBSD$
+.\"
+.Dd September 17, 2012
+.Dt NVMECONTROL 8
+.Os
+.Sh NAME
+.Nm nvmecontrol
+.Nd NVM Express control utility
+.Sh SYNOPSIS
+.Nm
+.Ic devlist
+.Nm
+.Ic identify
+.Op Fl v
+.Op Fl x
+.Aq device id
+.Nm
+.Ic perftest
+.Aq Fl n Ar num_threads
+.Aq Fl o Ar read|write
+.Op Fl p
+.Aq Fl s Ar size_in_bytes
+.Aq Fl t Ar time_in_sec
+.Aq device id
+.Sh DESCRIPTION
+NVM Express (NVMe) is a storage protocol standard, for SSDs and other
+high-speed storage devices over PCI Express.
+.Sh EXAMPLES
+.Dl nvmecontrol devlist
+.Pp
+Display a list of NVMe controllers and namespaces along with their device
nodes.
+.Dl nvmecontrol identify nvme0
+.Pp
+Display a human-readable summary of the nvme0 IDENTIFY_CONTROLLER data.
+.Pp
+.Dl nvmecontrol identify -x -v nvme0ns1
+.Pp
+Display a hexadecimal dump of the nvme0 IDENTIFY_NAMESPACE data for namespace
+1.
+.Pp
+.Dl nvmecontrol perftest -n 32 -o read -s 512 -t 30 nvme0ns1
+.Pp
+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
+.Sh AUTHORS
+.An -nosplit
+.Nm
+was developed by Intel and originally written by
+.An Jim Harris Aq jimhar...@freebsd.org .
+.Pp
+This man page was written by
+.An Jim Harris Aq jimhar...@freebsd.org .
Added: head/sbin/nvmecontrol/nvmecontrol.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sbin/nvmecontrol/nvmecontrol.c Mon Sep 17 21:26:55 2012
(r240620)
@@ -0,0 +1,600 @@
+/*-
+ * Copyright (C) 2012 Intel Corporation
+ * 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/stat.h>
+
+#include <dev/nvme/nvme.h>
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+#define DEVLIST_USAGE \
+" nvmecontrol devlist\n"
+
+#define IDENTIFY_USAGE \
+" nvmecontrol identify <controller id|namespace id>\n"
+
+#define PERFTEST_USAGE \
+" nvmecontrol perftest <-n num_threads> <-o read|write>\n" \
+" <-s size_in_bytes> <-t time_in_seconds>\n"
\
+" <-i intr|wait> [-f refthread] [-p]\n" \
+" <namespace id>\n"
+
+static void perftest_usage(void);
+
+static void
+usage(void)
+{
+ fprintf(stderr, "usage:\n");
+ fprintf(stderr, DEVLIST_USAGE);
+ fprintf(stderr, IDENTIFY_USAGE);
+ fprintf(stderr, PERFTEST_USAGE);
+ exit(EX_USAGE);
+}
+
+static void
+print_controller_hex(struct nvme_controller_data *cdata, uint32_t length)
+{
+ uint32_t *p;
+ uint32_t i, j;
+
+ p = (uint32_t *)cdata;
+ length /= sizeof(uint32_t);
+
+ for (i = 0; i < length; i+=8) {
+ printf("%03x: ", i*4);
+ for (j = 0; j < 8; j++)
+ printf("%08x ", p[i+j]);
+ printf("\n");
+ }
+
+ printf("\n");
+}
+
+static void
+print_controller(struct nvme_controller_data *cdata)
+{
+ printf("Controller Capabilities/Features\n");
+ printf("================================\n");
+ printf("Vendor ID: %04x\n", cdata->vid);
+ printf("Subsystem Vendor ID: %04x\n", cdata->ssvid);
+ printf("Serial Number: %s\n", cdata->sn);
+ printf("Model Number: %s\n", cdata->mn);
+ printf("Firmware Version: %s\n", cdata->fr);
+ printf("Recommended Arb Burst: %d\n", cdata->rab);
+ printf("IEEE OUI Identifier: %02x %02x %02x\n",
+ cdata->ieee[0], cdata->ieee[1], cdata->ieee[2]);
+ printf("Multi-Interface Cap: %02x\n", cdata->mic);
+ /* TODO: Use CAP.MPSMIN to determine true memory page size. */
+ printf("Max Data Transfer Size: ");
+ if (cdata->mdts == 0)
+ printf("Unlimited\n");
+ else
+ printf("%d\n", PAGE_SIZE * (1 << cdata->mdts));
+ printf("\n");
+
+ printf("Admin Command Set Attributes\n");
+ printf("============================\n");
+ printf("Security Send/Receive: %s\n",
+ cdata->oacs.security ? "Supported" : "Not Supported");
+ printf("Format NVM: %s\n",
+ cdata->oacs.format ? "Supported" : "Not Supported");
+ printf("Firmware Activate/Download: %s\n",
+ cdata->oacs.firmware ? "Supported" : "Not Supported");
+ printf("Abort Command Limit: %d\n", cdata->acl+1);
+ printf("Async Event Request Limit: %d\n", cdata->aerl+1);
+ printf("Number of Firmware Slots: ");
+ if (cdata->oacs.firmware != 0)
+ printf("%d\n", cdata->frmw.num_slots);
+ else
+ printf("N/A\n");
+ printf("Firmware Slot 1 Read-Only: ");
+ if (cdata->oacs.firmware != 0)
+ printf("%s\n", cdata->frmw.slot1_ro ? "Yes" : "No");
+ else
+ printf("N/A\n");
+ printf("Per-Namespace SMART Log: %s\n",
+ cdata->lpa.ns_smart ? "Yes" : "No");
+ printf("Error Log Page Entries: %d\n", cdata->elpe+1);
+ printf("Number of Power States: %d\n", cdata->npss+1);
+ printf("\n");
+
+ printf("NVM Command Set Attributes\n");
+ printf("==========================\n");
+ printf("Submission Queue Entry Size\n");
+ printf(" Max: %d\n", 1 << cdata->sqes.max);
+ printf(" Min: %d\n", 1 << cdata->sqes.min);
+ printf("Completion Queue Entry Size\n");
+ printf(" Max: %d\n", 1 << cdata->cqes.max);
+ printf(" Min: %d\n", 1 << cdata->cqes.min);
+ printf("Number of Namespaces: %d\n", cdata->nn);
+ printf("Compare Command: %s\n",
+ cdata->oncs.compare ? "Supported" : "Not Supported");
+ printf("Write Uncorrectable Command: %s\n",
+ cdata->oncs.write_unc ? "Supported" : "Not Supported");
+ printf("Dataset Management Command: %s\n",
+ cdata->oncs.dsm ? "Supported" : "Not Supported");
+ printf("Volatile Write Cache: %s\n",
+ cdata->vwc.present ? "Present" : "Not Present");
+}
+
+static void
+print_namespace_hex(struct nvme_namespace_data *nsdata, uint32_t length)
+{
+ uint32_t *p;
+ uint32_t i, j;
+
+ p = (uint32_t *)nsdata;
+ length /= sizeof(uint32_t);
+
+ for (i = 0; i < length; i+=8) {
+ printf("%03x: ", i*4);
+ for (j = 0; j < 8; j++)
+ printf("%08x ", p[i+j]);
+ printf("\n");
+ }
+
+ printf("\n");
+}
+
+static void
+print_namespace(struct nvme_namespace_data *nsdata)
+{
+ uint32_t i;
+
+ printf("Size (in LBAs): %lld (%lldM)\n",
+ (long long)nsdata->nsze,
+ (long long)nsdata->nsze / 1024 / 1024);
+ printf("Capacity (in LBAs): %lld (%lldM)\n",
+ (long long)nsdata->ncap,
+ (long long)nsdata->ncap / 1024 / 1024);
+ printf("Utilization (in LBAs): %lld (%lldM)\n",
+ (long long)nsdata->nuse,
+ (long long)nsdata->nuse / 1024 / 1024);
+ printf("Thin Provisioning: %s\n",
+ nsdata->nsfeat.thin_prov ? "Supported" : "Not Supported");
+ printf("Number of LBA Formats: %d\n", nsdata->nlbaf+1);
+ printf("Current LBA Format: LBA Format #%d\n",
+ nsdata->flbas.format);
+ for (i = 0; i <= nsdata->nlbaf; i++) {
+ printf("LBA Format #%d:\n", i);
+ printf(" LBA Data Size: %d\n",
+ 1 << nsdata->lbaf[i].lbads);
+ }
+}
+
+static uint32_t
+ns_get_sector_size(struct nvme_namespace_data *nsdata)
+{
+
+ return (1 << nsdata->lbaf[0].lbads);
+}
+
+
+static void
+devlist(int argc, char *argv[])
+{
+ struct nvme_controller_data cdata;
+ struct nvme_namespace_data nsdata;
+ struct stat devstat;
+ char name[64], path[64];
+ uint32_t i;
+ int ch, ctrlr, exit_code, fd, found;
+
+ exit_code = EX_OK;
+
+ while ((ch = getopt(argc, argv, "")) != -1) {
+ switch ((char)ch) {
+ default:
+ usage();
+ }
+ }
+
+ ctrlr = -1;
+ found = 0;
+
+ while (1) {
+ ctrlr++;
+ sprintf(name, "nvme%d", ctrlr);
+ sprintf(path, "/dev/%s", name);
+
+ if (stat(path, &devstat) != 0)
+ break;
+
+ found++;
+
+ fd = open(path, O_RDWR);
+ if (fd < 0) {
+ printf("Could not open %s.\n", path);
+ exit_code = EX_NOPERM;
+ continue;
+ }
+
+ if (ioctl(fd, NVME_IDENTIFY_CONTROLLER, &cdata) == -1) {
+ printf("ioctl to %s failed.\n", path);
+ exit_code = EX_IOERR;
+ continue;
+ }
+
+ printf("%6s: %s\n", name, cdata.mn);
+
+ for (i = 0; i < cdata.nn; i++) {
+ sprintf(name, "nvme%dns%d", ctrlr, i+1);
+ sprintf(path, "/dev/%s", name);
+
+ fd = open(path, O_RDWR);
+ if (fd < 0) {
+ printf("Could not open %s.\n", path);
+ exit_code = EX_NOPERM;
+ continue;
+ }
+ if (ioctl(fd, NVME_IDENTIFY_NAMESPACE, &nsdata) == -1) {
+ printf("ioctl to %s failed.\n", path);
+ exit_code = EX_IOERR;
+ continue;
+ }
+ printf(" %10s (%lldGB)\n",
+ name,
+ nsdata.nsze *
+ (long long)ns_get_sector_size(&nsdata) /
+ 1024 / 1024 / 1024);
+ }
+ }
+
+ if (found == 0)
+ printf("No NVMe controllers found.\n");
+
+ exit(exit_code);
+}
+
+static void
+identify_ctrlr(int argc, char *argv[])
+{
+ struct nvme_controller_data cdata;
+ struct stat devstat;
+ char path[64];
+ int ch, fd, hexflag = 0, hexlength;
+ int verboseflag = 0;
+
+ while ((ch = getopt(argc, argv, "vx")) != -1) {
+ switch ((char)ch) {
+ case 'v':
+ verboseflag = 1;
+ break;
+ case 'x':
+ hexflag = 1;
+ break;
+ 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_IDENTIFY_CONTROLLER, &cdata) == -1) {
+ printf("ioctl to %s failed.\n", path);
+ exit(EX_IOERR);
+ }
+
+ if (hexflag == 1) {
+ if (verboseflag == 1)
+ hexlength = sizeof(struct nvme_controller_data);
+ else
+ hexlength = offsetof(struct nvme_controller_data,
+ reserved5);
+ print_controller_hex(&cdata, hexlength);
+ exit(EX_OK);
+ }
+
+ if (verboseflag == 1) {
+ printf("-v not currently supported without -x.\n");
+ usage();
+ }
+
+ print_controller(&cdata);
+ exit(EX_OK);
+}
+
+static void
+identify_ns(int argc, char *argv[])
+{
+ struct nvme_namespace_data nsdata;
+ struct stat devstat;
+ char path[64];
+ int ch, fd, hexflag = 0, hexlength;
+ int verboseflag = 0;
+
+ while ((ch = getopt(argc, argv, "vx")) != -1) {
+ switch ((char)ch) {
+ case 'v':
+ verboseflag = 1;
+ break;
+ case 'x':
+ hexflag = 1;
+ break;
+ 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_IDENTIFY_NAMESPACE, &nsdata) == -1) {
+ printf("ioctl to %s failed.\n", path);
+ exit(EX_IOERR);
+ }
+
+ if (hexflag == 1) {
+ if (verboseflag == 1)
+ hexlength = sizeof(struct nvme_namespace_data);
+ else
+ hexlength = offsetof(struct nvme_namespace_data,
+ reserved6);
+ print_namespace_hex(&nsdata, hexlength);
+ exit(EX_OK);
+ }
+
+ if (verboseflag == 1) {
+ printf("-v not currently supported without -x.\n");
+ usage();
+ }
+
+ print_namespace(&nsdata);
+ exit(EX_OK);
+}
+
+static void
+identify(int argc, char *argv[])
+{
+ char *target;
+
+ if (argc < 2)
+ usage();
+
+ while (getopt(argc, argv, "vx") != -1) ;
+
+ target = argv[optind];
+
+ /* Specified device node must have "nvme" in it. */
+ if (strstr(argv[optind], "nvme") == NULL) {
+ printf("Invalid device node '%s'.\n", argv[optind]);
+ exit(EX_IOERR);
+ }
+
+ optreset = 1;
+ optind = 1;
+
+ /*
+ * If devicde node contains "ns", we consider it a namespace,
+ * otherwise, consider it a controller.
+ */
+ if (strstr(target, "ns") == NULL)
+ identify_ctrlr(argc, argv);
+ else
+ identify_ns(argc, argv);
+}
+
+static void
+print_perftest(struct nvme_io_test *io_test, bool perthread)
+{
+ uint32_t i, io_completed = 0, iops, mbps;
+
+ for (i = 0; i < io_test->num_threads; i++)
+ io_completed += io_test->io_completed[i];
+
+ iops = io_completed/io_test->time;
+ mbps = iops * io_test->size / (1024*1024);
+
+ printf("Threads: %2d Size: %6d %5s Time: %3d IO/s: %7d MB/s: %4d\n",
+ io_test->num_threads, io_test->size,
+ io_test->opc == NVME_OPC_READ ? "READ" : "WRITE",
+ io_test->time, iops, mbps);
+
+ if (perthread)
+ for (i = 0; i < io_test->num_threads; i++)
+ printf("\t%3d: %8d IO/s\n", i,
+ io_test->io_completed[i]/io_test->time);
+
+ exit(1);
+}
+
+static void
+perftest_usage(void)
+{
+ fprintf(stderr, "usage:\n");
+ fprintf(stderr, PERFTEST_USAGE);
+ exit(EX_USAGE);
+}
+
+static void
+perftest(int argc, char *argv[])
+{
+ struct nvme_io_test io_test;
+ int fd;
+ char ch;
+ char *p;
+ const char *name;
+ char path[64];
+ u_long ioctl_cmd = NVME_IO_TEST;
+ bool nflag, oflag, sflag, tflag;
+ int err, perthread = 0;
+
+ nflag = oflag = sflag = tflag = false;
+ name = NULL;
+
+ memset(&io_test, 0, sizeof(io_test));
+
+ while ((ch = getopt(argc, argv, "f:i:n:o:ps:t:")) != -1) {
+ switch (ch) {
+ case 'f':
+ if (!strcmp(optarg, "refthread"))
+ io_test.flags |= NVME_TEST_FLAG_REFTHREAD;
+ break;
+ case 'i':
+ if (!strcmp(optarg, "bio") ||
+ !strcmp(optarg, "wait"))
+ ioctl_cmd = NVME_BIO_TEST;
+ else if (!strcmp(optarg, "io") ||
+ !strcmp(optarg, "intr"))
+ ioctl_cmd = NVME_IO_TEST;
+ break;
+ case 'n':
+ nflag = true;
+ io_test.num_threads = strtoul(optarg, &p, 0);
+ if (p != NULL && *p != '\0') {
+ fprintf(stderr,
+ "\"%s\" not valid number of threads.\n",
+ optarg);
+ perftest_usage();
+ } else if (io_test.num_threads == 0 ||
+ io_test.num_threads > 128) {
+ fprintf(stderr,
+ "\"%s\" not valid number of threads.\n",
+ optarg);
+ perftest_usage();
+ }
+ break;
+ case 'o':
+ oflag = true;
+ if (!strcmp(optarg, "read") || !strcmp(optarg, "READ"))
+ io_test.opc = NVME_OPC_READ;
+ else if (!strcmp(optarg, "write") ||
+ !strcmp(optarg, "WRITE"))
+ io_test.opc = NVME_OPC_WRITE;
+ else {
+ fprintf(stderr, "\"%s\" not valid opcode.\n",
+ optarg);
+ perftest_usage();
+ }
+ break;
+ case 'p':
+ perthread = 1;
+ break;
+ case 's':
+ sflag = true;
+ io_test.size = strtoul(optarg, &p, 0);
+ if (p == NULL || *p == '\0' || toupper(*p) == 'B') {
+ // do nothing
+ } else if (toupper(*p) == 'K') {
+ io_test.size *= 1024;
+ } else if (toupper(*p) == 'M') {
+ io_test.size *= 1024 * 1024;
+ } else {
+ fprintf(stderr, "\"%s\" not valid size.\n",
+ optarg);
+ perftest_usage();
+ }
+ break;
+ case 't':
+ tflag = true;
+ io_test.time = strtoul(optarg, &p, 0);
+ if (p != NULL && *p != '\0') {
+ fprintf(stderr,
+ "\"%s\" not valid time duration.\n",
+ optarg);
+ perftest_usage();
+ }
+ break;
+ }
+ }
+
+ name = argv[optind];
+
+ if (!nflag || !oflag || !sflag || !tflag || name == NULL)
+ perftest_usage();
+
+ sprintf(path, "/dev/%s", name);
+
+ fd = open(path, O_RDWR);
+ if (fd < 0) {
+ fprintf(stderr, "%s not valid device.\n", path);
+ perftest_usage();
+ }
+
+ err = ioctl(fd, ioctl_cmd, &io_test);
+
+ if (err) {
+ fprintf(stderr, "NVME_IO_TEST returned %d\n", errno);
+ exit(EX_IOERR);
+ }
+
+ print_perftest(&io_test, perthread);
+ exit(EX_OK);
+}
+
+int
+main(int argc, char *argv[])
+{
+
+ if (argc < 2)
+ usage();
+
+ if (strcmp(argv[1], "devlist") == 0)
+ devlist(argc-1, &argv[1]);
+ else if (strcmp(argv[1], "identify") == 0)
+ identify(argc-1, &argv[1]);
+ else if (strcmp(argv[1], "perftest") == 0)
+ perftest(argc-1, &argv[1]);
+
+ usage();
+
+ return (0);
+}
_______________________________________________
svn-src-all@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
