nvmecontrol.c revision 252274
1240620Sjimharris/*- 2252263Sjimharris * Copyright (C) 2012-2013 Intel Corporation 3240620Sjimharris * All rights reserved. 4240620Sjimharris * 5240620Sjimharris * Redistribution and use in source and binary forms, with or without 6240620Sjimharris * modification, are permitted provided that the following conditions 7240620Sjimharris * are met: 8240620Sjimharris * 1. Redistributions of source code must retain the above copyright 9240620Sjimharris * notice, this list of conditions and the following disclaimer. 10240620Sjimharris * 2. Redistributions in binary form must reproduce the above copyright 11240620Sjimharris * notice, this list of conditions and the following disclaimer in the 12240620Sjimharris * documentation and/or other materials provided with the distribution. 13240620Sjimharris * 14240620Sjimharris * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15240620Sjimharris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16240620Sjimharris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17240620Sjimharris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18240620Sjimharris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19240620Sjimharris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20240620Sjimharris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21240620Sjimharris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22240620Sjimharris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23240620Sjimharris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24240620Sjimharris * SUCH DAMAGE. 25240620Sjimharris */ 26240620Sjimharris 27240620Sjimharris#include <sys/cdefs.h> 28240620Sjimharris__FBSDID("$FreeBSD: head/sbin/nvmecontrol/nvmecontrol.c 252274 2013-06-26 23:41:07Z jimharris $"); 29240620Sjimharris 30240620Sjimharris#include <sys/param.h> 31240620Sjimharris#include <sys/ioccom.h> 32240620Sjimharris#include <sys/stat.h> 33240620Sjimharris 34240620Sjimharris#include <ctype.h> 35240620Sjimharris#include <errno.h> 36240620Sjimharris#include <fcntl.h> 37240620Sjimharris#include <stdbool.h> 38240620Sjimharris#include <stddef.h> 39240620Sjimharris#include <stdio.h> 40240620Sjimharris#include <stdlib.h> 41240620Sjimharris#include <string.h> 42240620Sjimharris#include <sysexits.h> 43240620Sjimharris#include <unistd.h> 44240620Sjimharris 45252265Sjimharris#include "nvmecontrol.h" 46240620Sjimharris 47252269Sjimharristypedef void (*nvme_fn_t)(int argc, char *argv[]); 48252269Sjimharris 49252269Sjimharrisstruct nvme_function { 50252269Sjimharris const char *name; 51252269Sjimharris nvme_fn_t fn; 52252269Sjimharris const char *usage; 53252269Sjimharris} funcs[] = { 54252269Sjimharris {"devlist", devlist, DEVLIST_USAGE}, 55252269Sjimharris {"identify", identify, IDENTIFY_USAGE}, 56252269Sjimharris {"perftest", perftest, PERFTEST_USAGE}, 57252269Sjimharris {"reset", reset, RESET_USAGE}, 58252269Sjimharris {NULL, NULL, NULL}, 59252269Sjimharris}; 60252269Sjimharris 61240620Sjimharrisstatic void 62240620Sjimharrisusage(void) 63240620Sjimharris{ 64252269Sjimharris struct nvme_function *f; 65252269Sjimharris 66252269Sjimharris f = funcs; 67240620Sjimharris fprintf(stderr, "usage:\n"); 68252269Sjimharris while (f->name != NULL) { 69252269Sjimharris fprintf(stderr, "%s", f->usage); 70252269Sjimharris f++; 71252269Sjimharris } 72240620Sjimharris exit(EX_USAGE); 73240620Sjimharris} 74240620Sjimharris 75252265Sjimharrisvoid 76249422Sjimharrisread_controller_data(int fd, struct nvme_controller_data *cdata) 77249422Sjimharris{ 78249422Sjimharris struct nvme_pt_command pt; 79240620Sjimharris 80249422Sjimharris memset(&pt, 0, sizeof(pt)); 81249422Sjimharris pt.cmd.opc = NVME_OPC_IDENTIFY; 82249422Sjimharris pt.cmd.cdw10 = 1; 83249422Sjimharris pt.buf = cdata; 84249422Sjimharris pt.len = sizeof(*cdata); 85249422Sjimharris pt.is_read = 1; 86249422Sjimharris 87249422Sjimharris if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) { 88249422Sjimharris printf("Identify request failed. errno=%d (%s)\n", 89249422Sjimharris errno, strerror(errno)); 90249422Sjimharris exit(EX_IOERR); 91249422Sjimharris } 92249422Sjimharris 93249422Sjimharris if (nvme_completion_is_error(&pt.cpl)) { 94249422Sjimharris printf("Passthrough command returned error.\n"); 95249422Sjimharris exit(EX_IOERR); 96249422Sjimharris } 97249422Sjimharris} 98249422Sjimharris 99252265Sjimharrisvoid 100249422Sjimharrisread_namespace_data(int fd, int nsid, struct nvme_namespace_data *nsdata) 101249422Sjimharris{ 102249422Sjimharris struct nvme_pt_command pt; 103249422Sjimharris 104249422Sjimharris memset(&pt, 0, sizeof(pt)); 105249422Sjimharris pt.cmd.opc = NVME_OPC_IDENTIFY; 106249422Sjimharris pt.cmd.nsid = nsid; 107249422Sjimharris pt.buf = nsdata; 108249422Sjimharris pt.len = sizeof(*nsdata); 109249422Sjimharris pt.is_read = 1; 110249422Sjimharris 111249422Sjimharris if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) { 112249422Sjimharris printf("Identify request failed. errno=%d (%s)\n", 113249422Sjimharris errno, strerror(errno)); 114249422Sjimharris exit(EX_IOERR); 115249422Sjimharris } 116249422Sjimharris 117249422Sjimharris if (nvme_completion_is_error(&pt.cpl)) { 118249422Sjimharris printf("Passthrough command returned error.\n"); 119249422Sjimharris exit(EX_IOERR); 120249422Sjimharris } 121249422Sjimharris} 122249422Sjimharris 123252265Sjimharrisint 124252263Sjimharrisopen_dev(const char *str, int *fd, int show_error, int exit_on_error) 125252263Sjimharris{ 126252263Sjimharris struct stat devstat; 127252263Sjimharris char full_path[64]; 128252263Sjimharris 129252274Sjimharris if (!strnstr(str, NVME_CTRLR_PREFIX, strlen(NVME_CTRLR_PREFIX))) { 130252274Sjimharris if (show_error) 131252274Sjimharris fprintf(stderr, 132252274Sjimharris "Controller/namespace IDs must begin with '%s'.\n", 133252274Sjimharris NVME_CTRLR_PREFIX); 134252274Sjimharris if (exit_on_error) 135252274Sjimharris exit(EX_USAGE); 136252274Sjimharris else 137252274Sjimharris return (EX_USAGE); 138252274Sjimharris } 139252274Sjimharris 140252263Sjimharris snprintf(full_path, sizeof(full_path), "/dev/%s", str); 141252263Sjimharris if (stat(full_path, &devstat) != 0) { 142252263Sjimharris if (show_error) 143252274Sjimharris fprintf(stderr, "Could not stat %s. errno=%d (%s)\n", 144252274Sjimharris full_path, errno, strerror(errno)); 145252263Sjimharris if (exit_on_error) 146252263Sjimharris exit(EX_NOINPUT); 147252263Sjimharris else 148252263Sjimharris return (EX_NOINPUT); 149252263Sjimharris } 150252263Sjimharris 151252263Sjimharris *fd = open(full_path, O_RDWR); 152252263Sjimharris if (*fd < 0) { 153252263Sjimharris if (show_error) 154252274Sjimharris fprintf(stderr, "Could not open %s. errno=%d (%s)\n", 155252274Sjimharris full_path, errno, strerror(errno)); 156252263Sjimharris if (exit_on_error) 157252263Sjimharris exit(EX_NOPERM); 158252263Sjimharris else 159252263Sjimharris return (EX_NOPERM); 160252263Sjimharris } 161252263Sjimharris 162252263Sjimharris return (EX_OK); 163252263Sjimharris} 164252263Sjimharris 165240620Sjimharrisint 166240620Sjimharrismain(int argc, char *argv[]) 167240620Sjimharris{ 168252269Sjimharris struct nvme_function *f; 169240620Sjimharris 170240620Sjimharris if (argc < 2) 171240620Sjimharris usage(); 172240620Sjimharris 173252269Sjimharris f = funcs; 174252269Sjimharris while (f->name != NULL) { 175252269Sjimharris if (strcmp(argv[1], f->name) == 0) 176252269Sjimharris f->fn(argc-1, &argv[1]); 177252269Sjimharris f++; 178252269Sjimharris } 179240620Sjimharris 180240620Sjimharris usage(); 181240620Sjimharris 182240620Sjimharris return (0); 183240620Sjimharris} 184