devlist.c revision 253458
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 253458 2013-07-18 23:12:44Z jimharris $"); 29 30#include <sys/param.h> 31 32#include <err.h> 33#include <errno.h> 34#include <fcntl.h> 35#include <stddef.h> 36#include <stdio.h> 37#include <stdlib.h> 38#include <string.h> 39#include <unistd.h> 40 41#include "nvmecontrol.h" 42 43static void 44devlist_usage(void) 45{ 46 fprintf(stderr, "usage:\n"); 47 fprintf(stderr, DEVLIST_USAGE); 48 exit(1); 49} 50 51static inline uint32_t 52ns_get_sector_size(struct nvme_namespace_data *nsdata) 53{ 54 55 return (1 << nsdata->lbaf[0].lbads); 56} 57 58void 59devlist(int argc, char *argv[]) 60{ 61 struct nvme_controller_data cdata; 62 struct nvme_namespace_data nsdata; 63 char name[64]; 64 uint32_t i; 65 int ch, ctrlr, fd, found, ret; 66 67 while ((ch = getopt(argc, argv, "")) != -1) { 68 switch ((char)ch) { 69 default: 70 devlist_usage(); 71 } 72 } 73 74 ctrlr = -1; 75 found = 0; 76 77 while (1) { 78 ctrlr++; 79 sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr); 80 81 ret = open_dev(name, &fd, 0, 0); 82 83 if (ret != 0) { 84 if (ret == EACCES) { 85 warnx("could not open /dev/%s\n", name); 86 continue; 87 } else 88 break; 89 } 90 91 found++; 92 read_controller_data(fd, &cdata); 93 printf("%6s: %.*s\n", name, NVME_MODEL_NUMBER_LENGTH, cdata.mn); 94 95 for (i = 0; i < cdata.nn; i++) { 96 sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr, 97 NVME_NS_PREFIX, i+1); 98 read_namespace_data(fd, i+1, &nsdata); 99 printf(" %10s (%lldGB)\n", 100 name, 101 nsdata.nsze * 102 (long long)ns_get_sector_size(&nsdata) / 103 1024 / 1024 / 1024); 104 } 105 106 close(fd); 107 } 108 109 if (found == 0) 110 printf("No NVMe controllers found.\n"); 111 112 exit(1); 113} 114