1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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 #include <sys/param.h>
31 #include <sys/ioccom.h>
32
33 #include <err.h>
34 #include <fcntl.h>
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <sysexits.h>
39 #include <unistd.h>
40
41 #include "nvmecontrol.h"
42
43 static struct options {
44 const char *dev;
45 } opt = {
46 .dev = NULL
47 };
48
49 static const struct args args[] = {
50 { arg_string, &opt.dev, "controller-id|namespace-id" },
51 { arg_none, NULL, NULL },
52 };
53
54 static void
reset(const struct cmd * f,int argc,char * argv[])55 reset(const struct cmd *f, int argc, char *argv[])
56 {
57 int fd;
58 char *path;
59 uint32_t nsid;
60
61 if (arg_parse(argc, argv, f))
62 return;
63 open_dev(opt.dev, &fd, 1, 1);
64 get_nsid(fd, &path, &nsid);
65 if (nsid != 0) {
66 close(fd);
67 open_dev(path, &fd, 1, 1);
68 }
69 free(path);
70
71 if (ioctl(fd, NVME_RESET_CONTROLLER) < 0)
72 err(EX_IOERR, "reset request to %s failed", opt.dev);
73
74 exit(0);
75 }
76
77 static struct cmd reset_cmd = {
78 .name = "reset",
79 .fn = reset,
80 .descr = "Perform a controller-level reset",
81 .args = args,
82 };
83
84 CMD_COMMAND(reset_cmd);
85