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 #include <sys/stat.h> 35 36 #include <ctype.h> 37 #include <dlfcn.h> 38 #include <err.h> 39 #include <errno.h> 40 #include <fcntl.h> 41 #include <paths.h> 42 #include <stdbool.h> 43 #include <stddef.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <sysexits.h> 48 #include <unistd.h> 49 50 #include "nvmecontrol.h" 51 52 static void 53 print_bytes(void *data, uint32_t length) 54 { 55 uint32_t i, j; 56 uint8_t *p, *end; 57 58 end = (uint8_t *)data + length; 59 60 for (i = 0; i < length; i++) { 61 p = (uint8_t *)data + (i*16); 62 printf("%03x: ", i*16); 63 for (j = 0; j < 16 && p < end; j++) 64 printf("%02x ", *p++); 65 if (p >= end) 66 break; 67 printf("\n"); 68 } 69 printf("\n"); 70 } 71 72 static void 73 print_dwords(void *data, uint32_t length) 74 { 75 uint32_t *p; 76 uint32_t i, j; 77 78 p = (uint32_t *)data; 79 length /= sizeof(uint32_t); 80 81 for (i = 0; i < length; i+=8) { 82 printf("%03x: ", i*4); 83 for (j = 0; j < 8; j++) 84 printf("%08x ", p[i+j]); 85 printf("\n"); 86 } 87 88 printf("\n"); 89 } 90 91 void 92 print_hex(void *data, uint32_t length) 93 { 94 if (length >= sizeof(uint32_t) || length % sizeof(uint32_t) == 0) 95 print_dwords(data, length); 96 else 97 print_bytes(data, length); 98 } 99 100 int 101 read_controller_data(int fd, struct nvme_controller_data *cdata) 102 { 103 struct nvme_pt_command pt; 104 105 memset(&pt, 0, sizeof(pt)); 106 pt.cmd.opc = NVME_OPC_IDENTIFY; 107 pt.cmd.cdw10 = htole32(1); 108 pt.buf = cdata; 109 pt.len = sizeof(*cdata); 110 pt.is_read = 1; 111 112 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) 113 return (errno); 114 115 /* Convert data to host endian */ 116 nvme_controller_data_swapbytes(cdata); 117 118 if (nvme_completion_is_error(&pt.cpl)) 119 return (EIO); 120 return (0); 121 } 122 123 int 124 read_namespace_data(int fd, uint32_t nsid, struct nvme_namespace_data *nsdata) 125 { 126 struct nvme_pt_command pt; 127 128 memset(&pt, 0, sizeof(pt)); 129 pt.cmd.opc = NVME_OPC_IDENTIFY; 130 pt.cmd.nsid = htole32(nsid); 131 pt.cmd.cdw10 = htole32(0); 132 pt.buf = nsdata; 133 pt.len = sizeof(*nsdata); 134 pt.is_read = 1; 135 136 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) 137 return (errno); 138 139 /* Convert data to host endian */ 140 nvme_namespace_data_swapbytes(nsdata); 141 142 if (nvme_completion_is_error(&pt.cpl)) 143 return (EIO); 144 return (0); 145 } 146 147 int 148 open_dev(const char *str, int *fd, int write, int exit_on_error) 149 { 150 char full_path[64]; 151 152 snprintf(full_path, sizeof(full_path), _PATH_DEV"%s", str); 153 *fd = open(full_path, write ? O_RDWR : O_RDONLY); 154 if (*fd < 0) { 155 if (exit_on_error) { 156 err(EX_OSFILE, "could not open %s%s", full_path, 157 write ? " for write" : ""); 158 } else 159 return (errno); 160 } 161 162 return (0); 163 } 164 165 void 166 get_nsid(int fd, char **ctrlr_str, uint32_t *nsid) 167 { 168 struct nvme_get_nsid gnsid; 169 170 if (ioctl(fd, NVME_GET_NSID, &gnsid) < 0) 171 err(EX_OSERR, "NVME_GET_NSID ioctl failed"); 172 if (ctrlr_str != NULL) 173 *ctrlr_str = strndup(gnsid.cdev, sizeof(gnsid.cdev)); 174 if (nsid != NULL) 175 *nsid = gnsid.nsid; 176 } 177 178 int 179 main(int argc, char *argv[]) 180 { 181 182 cmd_init(); 183 184 cmd_load_dir("/lib/nvmecontrol", NULL, NULL); 185 cmd_load_dir(_PATH_LOCALBASE "/lib/nvmecontrol", NULL, NULL); 186 187 cmd_dispatch(argc, argv, NULL); 188 189 return (0); 190 } 191