]> CyberLeo.Net >> Repos - FreeBSD/stable/9.git/blob - sbin/nvmecontrol/devlist.c
MFC r253110:
[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 <fcntl.h>
34 #include <stddef.h>
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <unistd.h>
39
40 #include "nvmecontrol.h"
41
42 static void
43 devlist_usage(void)
44 {
45         fprintf(stderr, "usage:\n");
46         fprintf(stderr, DEVLIST_USAGE);
47         exit(1);
48 }
49
50 static inline uint32_t
51 ns_get_sector_size(struct nvme_namespace_data *nsdata)
52 {
53
54         return (1 << nsdata->lbaf[0].lbads);
55 }
56
57 void
58 devlist(int argc, char *argv[])
59 {
60         struct nvme_controller_data     cdata;
61         struct nvme_namespace_data      nsdata;
62         char                            name[64];
63         uint32_t                        i;
64         int                             ch, ctrlr, fd, found, ret;
65
66         while ((ch = getopt(argc, argv, "")) != -1) {
67                 switch ((char)ch) {
68                 default:
69                         devlist_usage();
70                 }
71         }
72
73         ctrlr = -1;
74         found = 0;
75
76         while (1) {
77                 ctrlr++;
78                 sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
79
80                 ret = open_dev(name, &fd, 0, 0);
81
82                 if (ret != 0) {
83                         if (fd < 0) {
84                                 warnx("could not open /dev/%s\n", name);
85                                 continue;
86                         } else
87                                 break;
88                 }
89
90                 found++;
91                 read_controller_data(fd, &cdata);
92                 printf("%6s: %s\n", name, cdata.mn);
93
94                 for (i = 0; i < cdata.nn; i++) {
95                         sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
96                             NVME_NS_PREFIX, i+1);
97                         read_namespace_data(fd, i+1, &nsdata);
98                         printf("  %10s (%lldGB)\n",
99                                 name,
100                                 nsdata.nsze *
101                                 (long long)ns_get_sector_size(&nsdata) /
102                                 1024 / 1024 / 1024);
103                 }
104
105                 close(fd);
106         }
107
108         if (found == 0)
109                 printf("No NVMe controllers found.\n");
110
111         exit(1);
112 }