a7bf63be69
While very useful by itself, it also makes `nvmecontrol` not depend on hardcoded device names parsing, that in its turn makes simple to take nvdX (and potentially any other) device names as arguments. Also added IOCTL bypass from nvdX to respective nvmeYnsZ makes them interchangeable for management purposes. MFC after: 2 weeks Sponsored by: iXsystems, Inc.
130 lines
3.4 KiB
C
130 lines
3.4 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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#include "comnd.h"
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/* Tables for command line parsing */
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#define NVME_MAX_UNIT 256
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static cmd_fn_t devlist;
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static struct cmd devlist_cmd = {
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.name = "devlist",
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.fn = devlist,
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.descr = "List NVMe controllers and namespaces"
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};
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CMD_COMMAND(devlist_cmd);
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/* End of tables for command line parsing */
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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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static void
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devlist(const struct cmd *f, 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 ctrlr, fd, found, ret;
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if (arg_parse(argc, argv, f))
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return;
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ctrlr = -1;
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found = 0;
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while (ctrlr < NVME_MAX_UNIT) {
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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 == EACCES) {
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warnx("could not open "_PATH_DEV"%s\n", name);
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continue;
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} else if (ret != 0)
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continue;
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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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read_namespace_data(fd, i + 1, &nsdata);
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if (nsdata.nsze == 0)
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continue;
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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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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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