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