]> CyberLeo.Net >> Repos - FreeBSD/stable/9.git/blob - sbin/nvmecontrol/devlist.c
MFC r253437:
[FreeBSD/stable/9.git] / sbin / nvmecontrol / devlist.c
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("$FreeBSD$");
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
43 static void
44 devlist_usage(void)
45 {
46         fprintf(stderr, "usage:\n");
47         fprintf(stderr, DEVLIST_USAGE);
48         exit(1);
49 }
50
51 static inline uint32_t
52 ns_get_sector_size(struct nvme_namespace_data *nsdata)
53 {
54
55         return (1 << nsdata->lbaf[0].lbads);
56 }
57
58 void
59 devlist(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 }