devlist.c revision 252265 
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 252265 2013-06-26 22:58:59Z jimharris $");
29
30#include <sys/param.h>
31
32#include <errno.h>
33#include <fcntl.h>
34#include <stddef.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <string.h>
38#include <sysexits.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(EX_USAGE);
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, exit_code, fd, found;
66
67	exit_code = EX_OK;
68
69	while ((ch = getopt(argc, argv, "")) != -1) {
70		switch ((char)ch) {
71		default:
72			devlist_usage();
73		}
74	}
75
76	ctrlr = -1;
77	found = 0;
78
79	while (1) {
80		ctrlr++;
81		sprintf(name, "nvme%d", ctrlr);
82
83		exit_code = open_dev(name, &fd, 0, 0);
84
85		if (exit_code == EX_NOINPUT)
86			break;
87		else if (exit_code == EX_NOPERM) {
88			printf("Could not open /dev/%s, errno = %d (%s)\n",
89			    name, errno, strerror(errno));
90			continue;
91		}
92
93		found++;
94		read_controller_data(fd, &cdata);
95		printf("%6s: %s\n", name, cdata.mn);
96
97		for (i = 0; i < cdata.nn; i++) {
98			sprintf(name, "nvme%dns%d", ctrlr, 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(EX_OK);
114}
115