xref: /freebsd/sbin/nvmecontrol/devlist.c (revision cc426dd31990b8b50b210efc450e404596548ca1)
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 
46 #define DEVLIST_USAGE							       \
47 	"devlist\n"
48 
49 static inline uint32_t
50 ns_get_sector_size(struct nvme_namespace_data *nsdata)
51 {
52 	uint8_t flbas_fmt, lbads;
53 
54 	flbas_fmt = (nsdata->flbas >> NVME_NS_DATA_FLBAS_FORMAT_SHIFT) &
55 		NVME_NS_DATA_FLBAS_FORMAT_MASK;
56 	lbads = (nsdata->lbaf[flbas_fmt] >> NVME_NS_DATA_LBAF_LBADS_SHIFT) &
57 		NVME_NS_DATA_LBAF_LBADS_MASK;
58 
59 	return (1 << lbads);
60 }
61 
62 static void
63 devlist(const struct nvme_function *nf, int argc, char *argv[])
64 {
65 	struct nvme_controller_data	cdata;
66 	struct nvme_namespace_data	nsdata;
67 	char				name[64];
68 	uint8_t				mn[64];
69 	uint32_t			i;
70 	int				ch, ctrlr, fd, found, ret;
71 
72 	while ((ch = getopt(argc, argv, "")) != -1) {
73 		switch ((char)ch) {
74 		default:
75 			usage(nf);
76 		}
77 	}
78 
79 	ctrlr = -1;
80 	found = 0;
81 
82 	while (1) {
83 		ctrlr++;
84 		sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
85 
86 		ret = open_dev(name, &fd, 0, 0);
87 
88 		if (ret != 0) {
89 			if (ret == EACCES) {
90 				warnx("could not open "_PATH_DEV"%s\n", name);
91 				continue;
92 			} else
93 				break;
94 		}
95 
96 		found++;
97 		read_controller_data(fd, &cdata);
98 		nvme_strvis(mn, cdata.mn, sizeof(mn), NVME_MODEL_NUMBER_LENGTH);
99 		printf("%6s: %s\n", name, mn);
100 
101 		for (i = 0; i < cdata.nn; i++) {
102 			sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
103 			    NVME_NS_PREFIX, i+1);
104 			read_namespace_data(fd, i+1, &nsdata);
105 			if (nsdata.nsze == 0)
106 				continue;
107 			printf("  %10s (%lldMB)\n",
108 				name,
109 				nsdata.nsze *
110 				(long long)ns_get_sector_size(&nsdata) /
111 				1024 / 1024);
112 		}
113 
114 		close(fd);
115 	}
116 
117 	if (found == 0)
118 		printf("No NVMe controllers found.\n");
119 
120 	exit(1);
121 }
122 
123 NVME_COMMAND(top, devlist, devlist, DEVLIST_USAGE);
124