1/*	$NetBSD: devlist.c,v 1.6 2023/03/05 23:24:06 simonb Exp $	*/
2
3/*-
4 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5 *
6 * Copyright (C) 2012-2013 Intel Corporation
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include <sys/cdefs.h>
32#ifndef lint
33__RCSID("$NetBSD: devlist.c,v 1.6 2023/03/05 23:24:06 simonb Exp $");
34#if 0
35__FBSDID("$FreeBSD: head/sbin/nvmecontrol/devlist.c 329824 2018-02-22 13:32:31Z wma $");
36#endif
37#endif
38
39#include <sys/param.h>
40
41#include <err.h>
42#include <errno.h>
43#include <fcntl.h>
44#include <paths.h>
45#include <stddef.h>
46#include <stdio.h>
47#include <stdlib.h>
48#include <string.h>
49#include <unistd.h>
50
51#include "nvmectl.h"
52
53__dead static void
54devlist_usage(void)
55{
56	fprintf(stderr, "usage:\n");
57	fprintf(stderr, "\t%s " DEVLIST_USAGE, getprogname());
58	exit(1);
59}
60
61static inline uint32_t
62ns_get_sector_size(struct nvm_identify_namespace *nsdata)
63{
64
65	return 1 << nsdata->lbaf[NVME_ID_NS_FLBAS(nsdata->flbas)].lbads;
66}
67
68void
69devlist(int argc, char *argv[])
70{
71	struct nvm_identify_controller	cdata;
72	struct nvm_identify_namespace	nsdata;
73	char				name[64];
74	uint8_t				mn[64];
75	uint32_t			i;
76	int				ch, ctrlr, fd, found, ret;
77
78	while ((ch = getopt(argc, argv, "")) != -1) {
79		switch (ch) {
80		default:
81			devlist_usage();
82		}
83	}
84
85	ctrlr = -1;
86	found = 0;
87
88	while (1) {
89		ctrlr++;
90		sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
91
92		ret = open_dev(name, &fd, 0, 0);
93
94		if (ret != 0) {
95			if (ret == EACCES) {
96				warnx("could not open "_PATH_DEV"%s\n", name);
97				continue;
98			} else
99				break;
100		}
101
102		found++;
103		read_controller_data(fd, &cdata);
104		nvme_strvis(mn, sizeof(mn), cdata.mn, sizeof(cdata.mn));
105		printf("%6s: %s\n", name, mn);
106
107		for (i = 0; i < cdata.nn; i++) {
108			sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
109			    NVME_NS_PREFIX, i+1);
110			read_namespace_data(fd, i+1, &nsdata);
111			printf("  %10s (%lldMB)\n",
112				name,
113				nsdata.nsze *
114				(long long)ns_get_sector_size(&nsdata) /
115				1024 / 1024);
116		}
117
118		close(fd);
119	}
120
121	if (found == 0) {
122		printf("No NVMe controllers found.\n");
123		exit(1);
124	}
125
126	exit(0);
127}
128