a33889400f
This allows create/delete/attach/detach namespaces on new NVMe controllers. This is only a first user-level part of the bigger change set. Kernel part required to detect and handle the configuration changes without reboot is completely independent and will be added separately. Submitted by: Matt Williams <mffbsdw@gmail.com> (original version) Differential Revision: https://reviews.freebsd.org/D11399
127 lines
3.2 KiB
C
127 lines
3.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2012-2013 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <paths.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "nvmecontrol.h"
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static void
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devlist_usage(void)
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{
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fprintf(stderr, "usage:\n");
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fprintf(stderr, DEVLIST_USAGE);
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exit(1);
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}
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static inline uint32_t
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ns_get_sector_size(struct nvme_namespace_data *nsdata)
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{
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uint8_t flbas_fmt, lbads;
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flbas_fmt = (nsdata->flbas >> NVME_NS_DATA_FLBAS_FORMAT_SHIFT) &
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NVME_NS_DATA_FLBAS_FORMAT_MASK;
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lbads = (nsdata->lbaf[flbas_fmt] >> NVME_NS_DATA_LBAF_LBADS_SHIFT) &
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NVME_NS_DATA_LBAF_LBADS_MASK;
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return (1 << lbads);
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}
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void
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devlist(int argc, char *argv[])
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{
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struct nvme_controller_data cdata;
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struct nvme_namespace_data nsdata;
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char name[64];
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uint8_t mn[64];
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uint32_t i;
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int ch, ctrlr, fd, found, ret;
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while ((ch = getopt(argc, argv, "")) != -1) {
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switch ((char)ch) {
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default:
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devlist_usage();
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}
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}
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ctrlr = -1;
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found = 0;
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while (1) {
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ctrlr++;
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sprintf(name, "%s%d", NVME_CTRLR_PREFIX, ctrlr);
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ret = open_dev(name, &fd, 0, 0);
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if (ret != 0) {
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if (ret == EACCES) {
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warnx("could not open "_PATH_DEV"%s\n", name);
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continue;
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} else
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break;
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}
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found++;
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read_controller_data(fd, &cdata);
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nvme_strvis(mn, cdata.mn, sizeof(mn), NVME_MODEL_NUMBER_LENGTH);
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printf("%6s: %s\n", name, mn);
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for (i = 0; i < cdata.nn; i++) {
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sprintf(name, "%s%d%s%d", NVME_CTRLR_PREFIX, ctrlr,
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NVME_NS_PREFIX, i+1);
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read_namespace_data(fd, i+1, &nsdata);
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if (nsdata.nsze == 0)
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continue;
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printf(" %10s (%lldMB)\n",
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name,
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nsdata.nsze *
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(long long)ns_get_sector_size(&nsdata) /
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1024 / 1024);
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}
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close(fd);
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}
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if (found == 0)
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printf("No NVMe controllers found.\n");
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exit(1);
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}
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