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 <unistd.h>
43
44 #include "nvmecontrol.h"
45 #include "comnd.h"
46
47 /* Tables for command line parsing */
48
49 #define NVME_MAX_UNIT 256
50
51 static cmd_fn_t devlist;
52
53 static struct cmd devlist_cmd = {
54 .name = "devlist",
55 .fn = devlist,
56 .descr = "List NVMe controllers and namespaces"
57 };
58
59 CMD_COMMAND(devlist_cmd);
60
61 /* End of tables for command line parsing */
62
63 static inline uint32_t
ns_get_sector_size(struct nvme_namespace_data * nsdata)64 ns_get_sector_size(struct nvme_namespace_data *nsdata)
65 {
66 uint8_t flbas_fmt, lbads;
67
68 flbas_fmt = (nsdata->flbas >> NVME_NS_DATA_FLBAS_FORMAT_SHIFT) &
69 NVME_NS_DATA_FLBAS_FORMAT_MASK;
70 lbads = (nsdata->lbaf[flbas_fmt] >> NVME_NS_DATA_LBAF_LBADS_SHIFT) &
71 NVME_NS_DATA_LBAF_LBADS_MASK;
72
73 return (1 << lbads);
74 }
75
76 static void
devlist(const struct cmd * f,int argc,char * argv[])77 devlist(const struct cmd *f, int argc, char *argv[])
78 {
79 struct nvme_controller_data cdata;
80 struct nvme_namespace_data nsdata;
81 char name[64];
82 uint8_t mn[64];
83 uint32_t i;
84 int ctrlr, fd, found, ret;
85
86 if (arg_parse(argc, argv, f))
87 return;
88
89 ctrlr = -1;
90 found = 0;
91
92 while (ctrlr < NVME_MAX_UNIT) {
93 ctrlr++;
94 sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
95
96 ret = open_dev(name, &fd, 0, 0);
97
98 if (ret == EACCES) {
99 warnx("could not open "_PATH_DEV"%s\n", name);
100 continue;
101 } else if (ret != 0)
102 continue;
103
104 found++;
105 read_controller_data(fd, &cdata);
106 nvme_strvis(mn, cdata.mn, sizeof(mn), NVME_MODEL_NUMBER_LENGTH);
107 printf("%6s: %s\n", name, mn);
108
109 for (i = 0; i < cdata.nn; i++) {
110 read_namespace_data(fd, i + 1, &nsdata);
111 if (nsdata.nsze == 0)
112 continue;
113 sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
114 NVME_NS_PREFIX, i + 1);
115 printf(" %10s (%lldMB)\n",
116 name,
117 nsdata.nsze *
118 (long long)ns_get_sector_size(&nsdata) /
119 1024 / 1024);
120 }
121
122 close(fd);
123 }
124
125 if (found == 0)
126 printf("No NVMe controllers found.\n");
127
128 exit(1);
129 }
130