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 34 #include <err.h> 35 #include <errno.h> 36 #include <fcntl.h> 37 #include <paths.h> 38 #include <stddef.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <string.h> 42 #include <sysexits.h> 43 #include <unistd.h> 44 45 #include "nvmecontrol.h" 46 #include "comnd.h" 47 48 /* Tables for command line parsing */ 49 50 #define NVME_MAX_UNIT 256 51 52 static cmd_fn_t devlist; 53 54 static struct cmd devlist_cmd = { 55 .name = "devlist", 56 .fn = devlist, 57 .descr = "List NVMe controllers and namespaces" 58 }; 59 60 CMD_COMMAND(devlist_cmd); 61 62 /* End of tables for command line parsing */ 63 64 static inline uint32_t 65 ns_get_sector_size(struct nvme_namespace_data *nsdata) 66 { 67 uint8_t flbas_fmt, lbads; 68 69 flbas_fmt = (nsdata->flbas >> NVME_NS_DATA_FLBAS_FORMAT_SHIFT) & 70 NVME_NS_DATA_FLBAS_FORMAT_MASK; 71 lbads = (nsdata->lbaf[flbas_fmt] >> NVME_NS_DATA_LBAF_LBADS_SHIFT) & 72 NVME_NS_DATA_LBAF_LBADS_MASK; 73 74 return (1 << lbads); 75 } 76 77 static void 78 devlist(const struct cmd *f, int argc, char *argv[]) 79 { 80 struct nvme_controller_data cdata; 81 struct nvme_namespace_data nsdata; 82 char name[64]; 83 uint8_t mn[64]; 84 uint32_t i; 85 int ctrlr, fd, found, ret; 86 87 if (arg_parse(argc, argv, f)) 88 return; 89 90 ctrlr = -1; 91 found = 0; 92 93 while (ctrlr < NVME_MAX_UNIT) { 94 ctrlr++; 95 sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr); 96 97 ret = open_dev(name, &fd, 0, 0); 98 99 if (ret == EACCES) { 100 warnx("could not open "_PATH_DEV"%s\n", name); 101 continue; 102 } else if (ret != 0) 103 continue; 104 105 found++; 106 if (read_controller_data(fd, &cdata)) 107 continue; 108 nvme_strvis(mn, cdata.mn, sizeof(mn), NVME_MODEL_NUMBER_LENGTH); 109 printf("%6s: %s\n", name, mn); 110 111 for (i = 0; i < cdata.nn; i++) { 112 if (read_namespace_data(fd, i + 1, &nsdata)) 113 continue; 114 if (nsdata.nsze == 0) 115 continue; 116 sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr, 117 NVME_NS_PREFIX, i + 1); 118 printf(" %10s (%lldMB)\n", 119 name, 120 nsdata.nsze * 121 (long long)ns_get_sector_size(&nsdata) / 122 1024 / 1024); 123 } 124 125 close(fd); 126 } 127 128 if (found == 0) { 129 printf("No NVMe controllers found.\n"); 130 exit(EX_UNAVAILABLE); 131 } 132 133 exit(0); 134 } 135