freebsd-dev/sbin/nvmecontrol/reset.c

87 lines
2.4 KiB
C
Raw Normal View History

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2012-2013 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 <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include "nvmecontrol.h"
static struct options {
const char *dev;
} opt = {
.dev = NULL
};
static const struct args args[] = {
{ arg_string, &opt.dev, "controller-id|namespace-id" },
{ arg_none, NULL, NULL },
};
static void
reset(const struct cmd *f, int argc, char *argv[])
{
int fd;
char *path;
uint32_t nsid;
if (arg_parse(argc, argv, f))
return;
open_dev(opt.dev, &fd, 1, 1);
get_nsid(fd, &path, &nsid);
if (nsid != 0) {
close(fd);
open_dev(path, &fd, 1, 1);
}
free(path);
if (ioctl(fd, NVME_RESET_CONTROLLER) < 0)
err(EX_IOERR, "reset request to %s failed", opt.dev);
exit(0);
}
static struct cmd reset_cmd = {
.name = "reset",
.fn = reset,
.descr = "Perform a controller-level reset",
.args = args,
};
CMD_COMMAND(reset_cmd);