1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (C) 2012-2013 Intel Corporation
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * 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/cdefs.h>
30__FBSDID("$FreeBSD$");
31
32#include <sys/param.h>
33#include <sys/ioccom.h>
34
35#include <err.h>
36#include <fcntl.h>
37#include <stdio.h>
38#include <stdlib.h>
39#include <string.h>
40#include <sysexits.h>
41#include <unistd.h>
42
43#include "nvmecontrol.h"
44
45static struct options {
46	const char *dev;
47} opt = {
48	.dev = NULL
49};
50
51static const struct args args[] = {
52	{ arg_string, &opt.dev, "controller-id|namespace-id" },
53	{ arg_none, NULL, NULL },
54};
55
56static void
57reset(const struct cmd *f, int argc, char *argv[])
58{
59	int	fd;
60	char	*path;
61	uint32_t nsid;
62
63	if (arg_parse(argc, argv, f))
64		return;
65	open_dev(opt.dev, &fd, 1, 1);
66	get_nsid(fd, &path, &nsid);
67	if (nsid != 0) {
68		close(fd);
69		open_dev(path, &fd, 1, 1);
70	}
71	free(path);
72
73	if (ioctl(fd, NVME_RESET_CONTROLLER) < 0)
74		err(EX_IOERR, "reset request to %s failed", opt.dev);
75
76	exit(0);
77}
78
79static struct cmd reset_cmd = {
80	.name = "reset",
81	.fn = reset,
82	.descr = "Perform a controller-level reset",
83	.args = args,
84};
85
86CMD_COMMAND(reset_cmd);
87