1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 34 #include <err.h> 35 #include <errno.h> 36 #include <fcntl.h> 37 #include <stdbool.h> 38 #include <libutil.h> 39 #include <paths.h> 40 #include <stddef.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <sysexits.h> 45 #include <unistd.h> 46 47 #include "nvmecontrol.h" 48 #include "comnd.h" 49 50 /* Tables for command line parsing */ 51 52 #define NVME_MAX_UNIT 256 53 54 static cmd_fn_t devlist; 55 56 static struct options { 57 bool human; 58 } opt = { 59 .human = false, 60 }; 61 62 static const struct opts devlist_opts[] = { 63 #define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc } 64 OPT("human", 'h', arg_none, opt, human, 65 "Show human readable disk size"), 66 { NULL, 0, arg_none, NULL, NULL } 67 }; 68 #undef OPT 69 70 static struct cmd devlist_cmd = { 71 .name = "devlist", 72 .fn = devlist, 73 .descr = "List NVMe controllers and namespaces", 74 .ctx_size = sizeof(opt), 75 .opts = devlist_opts, 76 .args = NULL, 77 }; 78 79 CMD_COMMAND(devlist_cmd); 80 81 /* End of tables for command line parsing */ 82 83 static inline uint32_t 84 ns_get_sector_size(struct nvme_namespace_data *nsdata) 85 { 86 uint8_t flbas_fmt, lbads; 87 88 flbas_fmt = (nsdata->flbas >> NVME_NS_DATA_FLBAS_FORMAT_SHIFT) & 89 NVME_NS_DATA_FLBAS_FORMAT_MASK; 90 lbads = (nsdata->lbaf[flbas_fmt] >> NVME_NS_DATA_LBAF_LBADS_SHIFT) & 91 NVME_NS_DATA_LBAF_LBADS_MASK; 92 93 return (1 << lbads); 94 } 95 96 static void 97 devlist(const struct cmd *f, int argc, char *argv[]) 98 { 99 struct nvme_controller_data cdata; 100 struct nvme_namespace_data nsdata; 101 char name[64]; 102 uint8_t mn[64]; 103 uint8_t buf[7]; 104 uint32_t i; 105 uint64_t size; 106 int ctrlr, fd, found, ret; 107 108 if (arg_parse(argc, argv, f)) 109 return; 110 111 ctrlr = -1; 112 found = 0; 113 114 while (ctrlr < NVME_MAX_UNIT) { 115 ctrlr++; 116 sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr); 117 118 ret = open_dev(name, &fd, 0, 0); 119 120 if (ret == EACCES) { 121 warnx("could not open "_PATH_DEV"%s\n", name); 122 continue; 123 } else if (ret != 0) 124 continue; 125 126 found++; 127 if (read_controller_data(fd, &cdata)) 128 continue; 129 nvme_strvis(mn, cdata.mn, sizeof(mn), NVME_MODEL_NUMBER_LENGTH); 130 printf("%6s: %s\n", name, mn); 131 132 for (i = 0; i < cdata.nn; i++) { 133 if (read_namespace_data(fd, i + 1, &nsdata)) 134 continue; 135 if (nsdata.nsze == 0) 136 continue; 137 sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr, 138 NVME_NS_PREFIX, i + 1); 139 size = nsdata.nsze * (uint64_t)ns_get_sector_size(&nsdata); 140 if (opt.human) { 141 humanize_number(buf, sizeof(buf), size, "B", 142 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL); 143 printf(" %10s (%s)\n", name, buf); 144 145 } else { 146 printf(" %10s (%juMB)\n", name, (uintmax_t)size / 1024 / 1024); 147 } 148 } 149 150 close(fd); 151 } 152 153 if (found == 0) { 154 printf("No NVMe controllers found.\n"); 155 exit(EX_UNAVAILABLE); 156 } 157 158 exit(0); 159 } 160