devlist.c revision 253459 
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 253459 2013-07-18 23:25:57Z jimharris $");
29
30#include <sys/param.h>
31
32#include <err.h>
33#include <errno.h>
34#include <fcntl.h>
35#include <paths.h>
36#include <stddef.h>
37#include <stdio.h>
38#include <stdlib.h>
39#include <string.h>
40#include <unistd.h>
41
42#include "nvmecontrol.h"
43
44static void
45devlist_usage(void)
46{
47	fprintf(stderr, "usage:\n");
48	fprintf(stderr, DEVLIST_USAGE);
49	exit(1);
50}
51
52static inline uint32_t
53ns_get_sector_size(struct nvme_namespace_data *nsdata)
54{
55
56	return (1 << nsdata->lbaf[0].lbads);
57}
58
59void
60devlist(int argc, char *argv[])
61{
62	struct nvme_controller_data	cdata;
63	struct nvme_namespace_data	nsdata;
64	char				name[64];
65	uint32_t			i;
66	int				ch, ctrlr, fd, found, ret;
67
68	while ((ch = getopt(argc, argv, "")) != -1) {
69		switch ((char)ch) {
70		default:
71			devlist_usage();
72		}
73	}
74
75	ctrlr = -1;
76	found = 0;
77
78	while (1) {
79		ctrlr++;
80		sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
81
82		ret = open_dev(name, &fd, 0, 0);
83
84		if (ret != 0) {
85			if (ret == EACCES) {
86				warnx("could not open "_PATH_DEV"%s\n", name);
87				continue;
88			} else
89				break;
90		}
91
92		found++;
93		read_controller_data(fd, &cdata);
94		printf("%6s: %.*s\n", name, NVME_MODEL_NUMBER_LENGTH, cdata.mn);
95
96		for (i = 0; i < cdata.nn; i++) {
97			sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
98			    NVME_NS_PREFIX, i+1);
99			read_namespace_data(fd, i+1, &nsdata);
100			printf("  %10s (%lldGB)\n",
101				name,
102				nsdata.nsze *
103				(long long)ns_get_sector_size(&nsdata) /
104				1024 / 1024 / 1024);
105		}
106
107		close(fd);
108	}
109
110	if (found == 0)
111		printf("No NVMe controllers found.\n");
112
113	exit(1);
114}
115