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