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