1162128Semax/*-
2128080Semax * SPDX-License-Identifier: BSD-2-Clause
3128080Semax *
4128080Semax * Copyright (C) 2012-2013 Intel Corporation
5162128Semax * All rights reserved.
6162128Semax *
7137868Semax * Redistribution and use in source and binary forms, with or without
8137868Semax * modification, are permitted provided that the following conditions
9137868Semax * are met:
10128080Semax * 1. Redistributions of source code must retain the above copyright
11162128Semax *    notice, this list of conditions and the following disclaimer.
12137868Semax * 2. Redistributions in binary form must reproduce the above copyright
13128080Semax *    notice, this list of conditions and the following disclaimer in the
14172401Sru *    documentation and/or other materials provided with the distribution.
15128080Semax *
16128080Semax * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17128080Semax * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/param.h>
30#include <sys/ioccom.h>
31
32#include <err.h>
33#include <fcntl.h>
34#include <stdio.h>
35#include <stdlib.h>
36#include <string.h>
37#include <sysexits.h>
38#include <unistd.h>
39
40#include "nvmecontrol.h"
41
42static struct options {
43	const char *dev;
44} opt = {
45	.dev = NULL
46};
47
48static const struct args args[] = {
49	{ arg_string, &opt.dev, "controller-id|namespace-id" },
50	{ arg_none, NULL, NULL },
51};
52
53static void
54reset(const struct cmd *f, int argc, char *argv[])
55{
56	int	fd;
57	char	*path;
58	uint32_t nsid;
59
60	if (arg_parse(argc, argv, f))
61		return;
62	open_dev(opt.dev, &fd, 1, 1);
63	get_nsid(fd, &path, &nsid);
64	if (nsid != 0) {
65		close(fd);
66		open_dev(path, &fd, 1, 1);
67	}
68	free(path);
69
70	if (ioctl(fd, NVME_RESET_CONTROLLER) < 0)
71		err(EX_IOERR, "reset request to %s failed", opt.dev);
72
73	exit(0);
74}
75
76static struct cmd reset_cmd = {
77	.name = "reset",
78	.fn = reset,
79	.descr = "Perform a controller-level reset",
80	.args = args,
81};
82
83CMD_COMMAND(reset_cmd);
84