1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (C) 2012-2013 Intel Corporation
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 #include <sys/param.h>
33
34 #include <err.h>
35 #include <errno.h>
36 #include <fcntl.h>
37 #include <paths.h>
38 #include <stddef.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <sysexits.h>
43 #include <unistd.h>
44
45 #include "nvmecontrol.h"
46 #include "comnd.h"
47
48 /* Tables for command line parsing */
49
50 #define NVME_MAX_UNIT 256
51
52 static cmd_fn_t devlist;
53
54 static struct cmd devlist_cmd = {
55 .name = "devlist",
56 .fn = devlist,
57 .descr = "List NVMe controllers and namespaces"
58 };
59
60 CMD_COMMAND(devlist_cmd);
61
62 /* End of tables for command line parsing */
63
64 static inline uint32_t
ns_get_sector_size(struct nvme_namespace_data * nsdata)65 ns_get_sector_size(struct nvme_namespace_data *nsdata)
66 {
67 uint8_t flbas_fmt, lbads;
68
69 flbas_fmt = (nsdata->flbas >> NVME_NS_DATA_FLBAS_FORMAT_SHIFT) &
70 NVME_NS_DATA_FLBAS_FORMAT_MASK;
71 lbads = (nsdata->lbaf[flbas_fmt] >> NVME_NS_DATA_LBAF_LBADS_SHIFT) &
72 NVME_NS_DATA_LBAF_LBADS_MASK;
73
74 return (1 << lbads);
75 }
76
77 static void
devlist(const struct cmd * f,int argc,char * argv[])78 devlist(const struct cmd *f, int argc, char *argv[])
79 {
80 struct nvme_controller_data cdata;
81 struct nvme_namespace_data nsdata;
82 char name[64];
83 uint8_t mn[64];
84 uint32_t i;
85 int ctrlr, fd, found, ret;
86
87 if (arg_parse(argc, argv, f))
88 return;
89
90 ctrlr = -1;
91 found = 0;
92
93 while (ctrlr < NVME_MAX_UNIT) {
94 ctrlr++;
95 sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
96
97 ret = open_dev(name, &fd, 0, 0);
98
99 if (ret == EACCES) {
100 warnx("could not open "_PATH_DEV"%s\n", name);
101 continue;
102 } else if (ret != 0)
103 continue;
104
105 found++;
106 if (read_controller_data(fd, &cdata))
107 continue;
108 nvme_strvis(mn, cdata.mn, sizeof(mn), NVME_MODEL_NUMBER_LENGTH);
109 printf("%6s: %s\n", name, mn);
110
111 for (i = 0; i < cdata.nn; i++) {
112 if (read_namespace_data(fd, i + 1, &nsdata))
113 continue;
114 if (nsdata.nsze == 0)
115 continue;
116 sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
117 NVME_NS_PREFIX, i + 1);
118 printf(" %10s (%lldMB)\n",
119 name,
120 nsdata.nsze *
121 (long long)ns_get_sector_size(&nsdata) /
122 1024 / 1024);
123 }
124
125 close(fd);
126 }
127
128 if (found == 0) {
129 printf("No NVMe controllers found.\n");
130 exit(EX_UNAVAILABLE);
131 }
132
133 exit(0);
134 }
135