freebsd-dev/sbin/nvmecontrol/devlist.c
Warner Losh 4d846d260e spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix
2023-05-12 10:44:03 -06:00

160 lines
4.1 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 2012-2013 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <libutil.h>
#include <paths.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include "nvmecontrol.h"
#include "comnd.h"
/* Tables for command line parsing */
#define NVME_MAX_UNIT 256
static cmd_fn_t devlist;
static struct options {
bool human;
} opt = {
.human = false,
};
static const struct opts devlist_opts[] = {
#define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc }
OPT("human", 'h', arg_none, opt, human,
"Show human readable disk size"),
{ NULL, 0, arg_none, NULL, NULL }
};
#undef OPT
static struct cmd devlist_cmd = {
.name = "devlist",
.fn = devlist,
.descr = "List NVMe controllers and namespaces",
.ctx_size = sizeof(opt),
.opts = devlist_opts,
.args = NULL,
};
CMD_COMMAND(devlist_cmd);
/* End of tables for command line parsing */
static inline uint32_t
ns_get_sector_size(struct nvme_namespace_data *nsdata)
{
uint8_t flbas_fmt, lbads;
flbas_fmt = (nsdata->flbas >> NVME_NS_DATA_FLBAS_FORMAT_SHIFT) &
NVME_NS_DATA_FLBAS_FORMAT_MASK;
lbads = (nsdata->lbaf[flbas_fmt] >> NVME_NS_DATA_LBAF_LBADS_SHIFT) &
NVME_NS_DATA_LBAF_LBADS_MASK;
return (1 << lbads);
}
static void
devlist(const struct cmd *f, int argc, char *argv[])
{
struct nvme_controller_data cdata;
struct nvme_namespace_data nsdata;
char name[64];
uint8_t mn[64];
uint8_t buf[7];
uint32_t i;
uint64_t size;
int ctrlr, fd, found, ret;
if (arg_parse(argc, argv, f))
return;
ctrlr = -1;
found = 0;
while (ctrlr < NVME_MAX_UNIT) {
ctrlr++;
sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
ret = open_dev(name, &fd, 0, 0);
if (ret == EACCES) {
warnx("could not open "_PATH_DEV"%s\n", name);
continue;
} else if (ret != 0)
continue;
found++;
if (read_controller_data(fd, &cdata))
continue;
nvme_strvis(mn, cdata.mn, sizeof(mn), NVME_MODEL_NUMBER_LENGTH);
printf("%6s: %s\n", name, mn);
for (i = 0; i < cdata.nn; i++) {
if (read_namespace_data(fd, i + 1, &nsdata))
continue;
if (nsdata.nsze == 0)
continue;
sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
NVME_NS_PREFIX, i + 1);
size = nsdata.nsze * (uint64_t)ns_get_sector_size(&nsdata);
if (opt.human) {
humanize_number(buf, sizeof(buf), size, "B",
HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL);
printf(" %10s (%s)\n", name, buf);
} else {
printf(" %10s (%juMB)\n", name, (uintmax_t)size / 1024 / 1024);
}
}
close(fd);
}
if (found == 0) {
printf("No NVMe controllers found.\n");
exit(EX_UNAVAILABLE);
}
exit(0);
}