devlist.c revision 253109
1/*- 2 * Copyright (C) 2012-2013 Intel Corporation 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sbin/nvmecontrol/devlist.c 253109 2013-07-09 21:14:15Z jimharris $"); 29 30#include <sys/param.h> 31 32#include <err.h> 33#include <fcntl.h> 34#include <stddef.h> 35#include <stdio.h> 36#include <stdlib.h> 37#include <string.h> 38#include <unistd.h> 39 40#include "nvmecontrol.h" 41 42static void 43devlist_usage(void) 44{ 45 fprintf(stderr, "usage:\n"); 46 fprintf(stderr, DEVLIST_USAGE); 47 exit(1); 48} 49 50static inline uint32_t 51ns_get_sector_size(struct nvme_namespace_data *nsdata) 52{ 53 54 return (1 << nsdata->lbaf[0].lbads); 55} 56 57void 58devlist(int argc, char *argv[]) 59{ 60 struct nvme_controller_data cdata; 61 struct nvme_namespace_data nsdata; 62 char name[64]; 63 uint32_t i; 64 int ch, ctrlr, fd, found, ret; 65 66 while ((ch = getopt(argc, argv, "")) != -1) { 67 switch ((char)ch) { 68 default: 69 devlist_usage(); 70 } 71 } 72 73 ctrlr = -1; 74 found = 0; 75 76 while (1) { 77 ctrlr++; 78 sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr); 79 80 ret = open_dev(name, &fd, 0, 0); 81 82 if (ret != 0) { 83 if (fd < 0) { 84 warnx("could not open /dev/%s\n", name); 85 continue; 86 } else 87 break; 88 } 89 90 found++; 91 read_controller_data(fd, &cdata); 92 printf("%6s: %s\n", name, cdata.mn); 93 94 for (i = 0; i < cdata.nn; i++) { 95 sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr, 96 NVME_NS_PREFIX, i+1); 97 read_namespace_data(fd, i+1, &nsdata); 98 printf(" %10s (%lldGB)\n", 99 name, 100 nsdata.nsze * 101 (long long)ns_get_sector_size(&nsdata) / 102 1024 / 1024 / 1024); 103 } 104 105 close(fd); 106 } 107 108 if (found == 0) 109 printf("No NVMe controllers found.\n"); 110 111 exit(1); 112} 113