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: stable/11/sbin/nvmecontrol/devlist.c 350960 2019-08-12 20:34:56Z mav $");
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
46static void
47devlist_usage(void)
48{
49	fprintf(stderr, "usage:\n");
50	fprintf(stderr, DEVLIST_USAGE);
51	exit(1);
52}
53
54#define NVME_MAX_UNIT 256
55
56static inline uint32_t
57ns_get_sector_size(struct nvme_namespace_data *nsdata)
58{
59
60	return (1 << nsdata->lbaf[nsdata->flbas.format].lbads);
61}
62
63void
64devlist(int argc, char *argv[])
65{
66	struct nvme_controller_data	cdata;
67	struct nvme_namespace_data	nsdata;
68	char				name[64];
69	uint8_t				mn[64];
70	uint32_t			i;
71	int				ch, ctrlr, fd, found, ret;
72
73	while ((ch = getopt(argc, argv, "")) != -1) {
74		switch ((char)ch) {
75		default:
76			devlist_usage();
77		}
78	}
79
80	ctrlr = -1;
81	found = 0;
82
83	while (ctrlr < NVME_MAX_UNIT) {
84		ctrlr++;
85		sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
86
87		ret = open_dev(name, &fd, 0, 0);
88
89		if (ret == EACCES) {
90			warnx("could not open "_PATH_DEV"%s\n", name);
91			continue;
92		} else if (ret != 0)
93			continue;
94
95		found++;
96		read_controller_data(fd, &cdata);
97		nvme_strvis(mn, cdata.mn, sizeof(mn), NVME_MODEL_NUMBER_LENGTH);
98		printf("%6s: %s\n", name, mn);
99
100		for (i = 0; i < cdata.nn; i++) {
101			sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
102			    NVME_NS_PREFIX, i+1);
103			read_namespace_data(fd, i+1, &nsdata);
104			printf("  %10s (%lldMB)\n",
105				name,
106				nsdata.nsze *
107				(long long)ns_get_sector_size(&nsdata) /
108				1024 / 1024);
109		}
110
111		close(fd);
112	}
113
114	if (found == 0)
115		printf("No NVMe controllers found.\n");
116
117	exit(1);
118}
119