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 45 static struct options { 46 const char *dev; 47 } opt = { 48 .dev = NULL 49 }; 50 51 static const struct args args[] = { 52 { arg_string, &opt.dev, "controller-id|namespace-id" }, 53 { arg_none, NULL, NULL }, 54 }; 55 56 static void 57 reset(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 79 static struct cmd reset_cmd = { 80 .name = "reset", 81 .fn = reset, 82 .descr = "Perform a controller-level reset", 83 .args = args, 84 }; 85 86 CMD_COMMAND(reset_cmd); 87