Add NVMe Namespace Management support to nvmecontrol(8).
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
This commit is contained in:
Alexander Motin
parent
608cdf904b
commit
ba405bc811
@ -3,7 +3,7 @@
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PACKAGE=runtime
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PROG= nvmecontrol
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SRCS= nvmecontrol.c devlist.c firmware.c format.c identify.c logpage.c \
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perftest.c reset.c nvme_util.c power.c util.c wdc.c
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perftest.c reset.c ns.c nvme_util.c power.c util.c wdc.c
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MAN= nvmecontrol.8
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.PATH: ${SRCTOP}/sys/dev/nvme
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@ -107,6 +107,8 @@ devlist(int argc, char *argv[])
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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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474
sbin/nvmecontrol/ns.c
Normal file
474
sbin/nvmecontrol/ns.c
Normal file
@ -0,0 +1,474 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2017 Netflix, Inc
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* Copyright (C) 2018 Alexander Motin <mav@FreeBSD.org>
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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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* without modification, immediately at the beginning of the file.
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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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 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 <sys/ioccom.h>
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#include <err.h>
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#include <fcntl.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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/* handles NVME_OPC_NAMESPACE_MANAGEMENT and ATTACHMENT admin cmds */
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#define NSCREATE_USAGE \
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" nvmecontrol ns create -s size [-c cap] [-f fmt] [-m mset] [-n nmic] [-p pi] [-l pil] nvmeN\n"
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#define NSDELETE_USAGE \
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" nvmecontrol ns delete -n nsid nvmeN\n"
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#define NSATTACH_USAGE \
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" nvmecontrol ns attach -n nsid [-c ctrlrid] nvmeN \n"
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#define NSDETACH_USAGE \
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" nvmecontrol ns detach -n nsid [-c ctrlrid] nvmeN\n"
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void nscreate(int argc, char *argv[]);
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void nsdelete(int argc, char *argv[]);
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void nsattach(int argc, char *argv[]);
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void nsdetach(int argc, char *argv[]);
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static struct nvme_function ns_funcs[] = {
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{"create", nscreate, NSCREATE_USAGE},
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{"delete", nsdelete, NSDELETE_USAGE},
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{"attach", nsattach, NSATTACH_USAGE},
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{"detach", nsdetach, NSDETACH_USAGE},
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{NULL, NULL, NULL},
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};
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static void
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nscreate_usage(void)
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{
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fprintf(stderr, "usage:\n");
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fprintf(stderr, NSCREATE_USAGE);
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exit(1);
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}
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static void
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nsdelete_usage(void)
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{
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fprintf(stderr, "usage:\n");
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fprintf(stderr, NSDELETE_USAGE);
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exit(1);
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}
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static void
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nsattach_usage(void)
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{
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fprintf(stderr, "usage:\n");
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fprintf(stderr, NSATTACH_USAGE);
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exit(1);
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}
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static void
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nsdetach_usage(void)
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{
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fprintf(stderr, "usage:\n");
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fprintf(stderr, NSDETACH_USAGE);
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exit(1);
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}
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struct ns_result_str {
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uint16_t res;
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const char * str;
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};
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static struct ns_result_str ns_result[] = {
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{ 0x2, "Invalid Field"},
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{ 0xa, "Invalid Format"},
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{ 0xb, "Invalid Namespace or format"},
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{ 0x15, "Namespace insufficent capacity"},
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{ 0x16, "Namespace ID unavaliable"},
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{ 0x18, "Namespace already attached"},
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{ 0x19, "Namespace is private"},
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{ 0x1a, "Namespace is not attached"},
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{ 0x1b, "Thin provisioning not supported"},
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{ 0x1c, "Controller list invalid"},
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{ 0xFFFF, "Unknown"}
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};
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static const char *
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get_res_str(uint16_t res)
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{
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struct ns_result_str *t = ns_result;
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while (t->res != 0xFFFF) {
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if (t->res == res)
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return (t->str);
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t++;
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}
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return t->str;
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}
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/*
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* NS MGMT Command specific status values:
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* 0xa = Invalid Format
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* 0x15 = Namespace Insuffience capacity
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* 0x16 = Namespace ID unavailable (number namespaces exceeded)
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* 0xb = Thin Provisioning Not supported
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*/
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void
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nscreate(int argc, char *argv[])
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{
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struct nvme_pt_command pt;
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struct nvme_controller_data cd;
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struct nvme_namespace_data nsdata;
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int64_t nsze = -1, cap = -1;
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int ch, fd, result, lbaf = 0, mset = 0, nmic = -1, pi = 0, pil = 0;
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if (optind >= argc)
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nscreate_usage();
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while ((ch = getopt(argc, argv, "s:c:f:m:n:p:l:")) != -1) {
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switch (ch) {
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case 's':
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nsze = strtol(optarg, (char **)NULL, 0);
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break;
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case 'c':
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cap = strtol(optarg, (char **)NULL, 0);
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break;
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case 'f':
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lbaf = strtol(optarg, (char **)NULL, 0);
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break;
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case 'm':
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mset = strtol(optarg, NULL, 0);
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break;
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case 'n':
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nmic = strtol(optarg, NULL, 0);
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break;
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case 'p':
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pi = strtol(optarg, NULL, 0);
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break;
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case 'l':
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pil = strtol(optarg, NULL, 0);
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break;
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default:
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nscreate_usage();
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}
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}
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if (optind >= argc)
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nscreate_usage();
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if (cap == -1)
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cap = nsze;
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if (nsze == -1 || cap == -1)
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nscreate_usage();
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open_dev(argv[optind], &fd, 1, 1);
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read_controller_data(fd, &cd);
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/* Check that controller can execute this command. */
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if (((cd.oacs >> NVME_CTRLR_DATA_OACS_NSMGMT_SHIFT) &
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NVME_CTRLR_DATA_OACS_NSMGMT_MASK) == 0)
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errx(1, "controller does not support namespace management");
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/* Allow namespaces sharing if Multi-Path I/O is supported. */
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if (nmic == -1) {
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nmic = cd.mic ? (NVME_NS_DATA_NMIC_MAY_BE_SHARED_MASK <<
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NVME_NS_DATA_NMIC_MAY_BE_SHARED_SHIFT) : 0;
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}
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memset(&nsdata, 0, sizeof(nsdata));
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nsdata.nsze = (uint64_t)nsze;
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nsdata.ncap = (uint64_t)cap;
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nsdata.flbas = ((lbaf & NVME_NS_DATA_FLBAS_FORMAT_MASK)
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<< NVME_NS_DATA_FLBAS_FORMAT_SHIFT) |
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((mset & NVME_NS_DATA_FLBAS_EXTENDED_MASK)
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<< NVME_NS_DATA_FLBAS_EXTENDED_SHIFT);
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nsdata.dps = ((pi & NVME_NS_DATA_DPS_MD_START_MASK)
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<< NVME_NS_DATA_DPS_MD_START_SHIFT) |
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((pil & NVME_NS_DATA_DPS_PIT_MASK)
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<< NVME_NS_DATA_DPS_PIT_SHIFT);
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nsdata.nmic = nmic;
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nvme_namespace_data_swapbytes(&nsdata);
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc_fuse = NVME_CMD_SET_OPC(NVME_OPC_NAMESPACE_MANAGEMENT);
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pt.cmd.cdw10 = 0; /* create */
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pt.buf = &nsdata;
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pt.len = sizeof(struct nvme_namespace_data);
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pt.is_read = 0; /* passthrough writes data to ctrlr */
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if ((result = ioctl(fd, NVME_PASSTHROUGH_CMD, &pt)) < 0)
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errx(1, "ioctl request to %s failed: %d", argv[optind], result);
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if (nvme_completion_is_error(&pt.cpl)) {
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errx(1, "namespace creation failed: %s",
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get_res_str((pt.cpl.status >> NVME_STATUS_SC_SHIFT) &
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NVME_STATUS_SC_MASK));
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}
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printf("namespace %d created\n", pt.cpl.cdw0);
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exit(0);
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}
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void
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nsdelete(int argc, char *argv[])
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{
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struct nvme_pt_command pt;
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struct nvme_controller_data cd;
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int ch, fd, result, nsid = -2;
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char buf[2];
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if (optind >= argc)
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nsdelete_usage();
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while ((ch = getopt(argc, argv, "n:")) != -1) {
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switch ((char)ch) {
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case 'n':
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nsid = strtol(optarg, (char **)NULL, 0);
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break;
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default:
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nsdelete_usage();
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}
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}
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if (optind >= argc || nsid == -2)
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nsdelete_usage();
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open_dev(argv[optind], &fd, 1, 1);
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read_controller_data(fd, &cd);
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/* Check that controller can execute this command. */
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if (((cd.oacs >> NVME_CTRLR_DATA_OACS_NSMGMT_SHIFT) &
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NVME_CTRLR_DATA_OACS_NSMGMT_MASK) == 0)
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errx(1, "controller does not support namespace management");
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc_fuse = NVME_CMD_SET_OPC(NVME_OPC_NAMESPACE_MANAGEMENT);
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pt.cmd.cdw10 = 1; /* delete */
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pt.buf = buf;
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pt.len = sizeof(buf);
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pt.is_read = 1;
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pt.cmd.nsid = (uint32_t)nsid;
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if ((result = ioctl(fd, NVME_PASSTHROUGH_CMD, &pt)) < 0)
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errx(1, "ioctl request to %s failed: %d", argv[optind], result);
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if (nvme_completion_is_error(&pt.cpl)) {
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errx(1, "namespace deletion failed: %s",
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get_res_str((pt.cpl.status >> NVME_STATUS_SC_SHIFT) &
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NVME_STATUS_SC_MASK));
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}
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printf("namespace %d deleted\n", nsid);
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exit(0);
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}
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/*
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* Attach and Detach use Dword 10, and a controller list (section 4.9)
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* This struct is 4096 bytes in size.
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* 0h = attach
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* 1h = detach
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*
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* Result values for both attach/detach:
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*
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* Completion 18h = Already attached
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* 19h = NS is private and already attached to a controller
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* 1Ah = Not attached, request could not be completed
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* 1Ch = Controller list invalid.
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*
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* 0x2 Invalid Field can occur if ctrlrid d.n.e in system.
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*/
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void
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nsattach(int argc, char *argv[])
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{
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struct nvme_pt_command pt;
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struct nvme_controller_data cd;
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int ctrlrid = -2;
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int fd, ch, result, nsid = -1;
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uint16_t clist[2048];
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if (optind >= argc)
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nsattach_usage();
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while ((ch = getopt(argc, argv, "n:c:")) != -1) {
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switch (ch) {
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case 'n':
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nsid = strtol(optarg, (char **)NULL, 0);
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break;
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case 'c':
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ctrlrid = strtol(optarg, (char **)NULL, 0);
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break;
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default:
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nsattach_usage();
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}
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}
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if (optind >= argc)
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nsattach_usage();
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if (nsid == -1 )
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nsattach_usage();
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open_dev(argv[optind], &fd, 1, 1);
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read_controller_data(fd, &cd);
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/* Check that controller can execute this command. */
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if (((cd.oacs >> NVME_CTRLR_DATA_OACS_NSMGMT_SHIFT) &
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NVME_CTRLR_DATA_OACS_NSMGMT_MASK) == 0)
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errx(1, "controller does not support namespace management");
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if (ctrlrid == -1) {
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/* Get full list of controllers to attach to. */
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc_fuse = NVME_CMD_SET_OPC(NVME_OPC_IDENTIFY);
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pt.cmd.cdw10 = htole32(0x13);
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pt.buf = clist;
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pt.len = sizeof(clist);
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pt.is_read = 1;
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if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
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err(1, "identify request failed");
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if (nvme_completion_is_error(&pt.cpl))
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errx(1, "identify request returned error");
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} else {
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/* By default attach to this controller. */
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if (ctrlrid == -2)
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ctrlrid = cd.ctrlr_id;
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memset(&clist, 0, sizeof(clist));
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clist[0] = htole16(1);
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clist[1] = htole16(ctrlrid);
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}
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc_fuse = NVME_CMD_SET_OPC(NVME_OPC_NAMESPACE_ATTACHMENT);
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pt.cmd.cdw10 = 0; /* attach */
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pt.cmd.nsid = (uint32_t)nsid;
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pt.buf = &clist;
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pt.len = sizeof(clist);
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if ((result = ioctl(fd, NVME_PASSTHROUGH_CMD, &pt)) < 0)
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errx(1, "ioctl request to %s failed: %d", argv[optind], result);
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if (nvme_completion_is_error(&pt.cpl)) {
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errx(1, "namespace attach failed: %s",
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get_res_str((pt.cpl.status >> NVME_STATUS_SC_SHIFT) &
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NVME_STATUS_SC_MASK));
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}
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printf("namespace %d attached\n", nsid);
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exit(0);
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}
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void
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nsdetach(int argc, char *argv[])
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{
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struct nvme_pt_command pt;
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struct nvme_controller_data cd;
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int ctrlrid = -2;
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int fd, ch, result, nsid = -1;
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uint16_t clist[2048];
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if (optind >= argc)
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nsdetach_usage();
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while ((ch = getopt(argc, argv, "n:c:")) != -1) {
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switch (ch) {
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case 'n':
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nsid = strtol(optarg, (char **)NULL, 0);
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break;
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case 'c':
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ctrlrid = strtol(optarg, (char **)NULL, 0);
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break;
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default:
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nsdetach_usage();
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}
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}
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if (optind >= argc)
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nsdetach_usage();
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if (nsid == -1)
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nsdetach_usage();
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open_dev(argv[optind], &fd, 1, 1);
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read_controller_data(fd, &cd);
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/* Check that controller can execute this command. */
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if (((cd.oacs >> NVME_CTRLR_DATA_OACS_NSMGMT_SHIFT) &
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NVME_CTRLR_DATA_OACS_NSMGMT_MASK) == 0)
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errx(1, "controller does not support namespace management");
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if (ctrlrid == -1) {
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/* Get list of controllers this namespace attached to. */
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc_fuse = NVME_CMD_SET_OPC(NVME_OPC_IDENTIFY);
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pt.cmd.nsid = htole32(nsid);
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pt.cmd.cdw10 = htole32(0x12);
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pt.buf = clist;
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pt.len = sizeof(clist);
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pt.is_read = 1;
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if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
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err(1, "identify request failed");
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if (nvme_completion_is_error(&pt.cpl))
|
||||
errx(1, "identify request returned error");
|
||||
if (clist[0] == 0) {
|
||||
ctrlrid = cd.ctrlr_id;
|
||||
memset(&clist, 0, sizeof(clist));
|
||||
clist[0] = htole16(1);
|
||||
clist[1] = htole16(ctrlrid);
|
||||
}
|
||||
} else {
|
||||
/* By default detach from this controller. */
|
||||
if (ctrlrid == -2)
|
||||
ctrlrid = cd.ctrlr_id;
|
||||
memset(&clist, 0, sizeof(clist));
|
||||
clist[0] = htole16(1);
|
||||
clist[1] = htole16(ctrlrid);
|
||||
}
|
||||
|
||||
memset(&pt, 0, sizeof(pt));
|
||||
pt.cmd.opc_fuse = NVME_CMD_SET_OPC(NVME_OPC_NAMESPACE_ATTACHMENT);
|
||||
pt.cmd.cdw10 = 1; /* detach */
|
||||
pt.cmd.nsid = (uint32_t)nsid;
|
||||
pt.buf = &clist;
|
||||
pt.len = sizeof(clist);
|
||||
|
||||
if ((result = ioctl(fd, NVME_PASSTHROUGH_CMD, &pt)) < 0)
|
||||
errx(1, "ioctl request to %s failed: %d", argv[optind], result);
|
||||
|
||||
if (nvme_completion_is_error(&pt.cpl)) {
|
||||
errx(1, "namespace detach failed: %s",
|
||||
get_res_str((pt.cpl.status >> NVME_STATUS_SC_SHIFT) &
|
||||
NVME_STATUS_SC_MASK));
|
||||
}
|
||||
printf("namespace %d detached\n", nsid);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
void
|
||||
ns(int argc, char *argv[])
|
||||
{
|
||||
|
||||
dispatch(argc, argv, ns_funcs);
|
||||
}
|
||||
@ -58,6 +58,7 @@ static struct nvme_function funcs[] = {
|
||||
{"format", format, FORMAT_USAGE},
|
||||
{"power", power, POWER_USAGE},
|
||||
{"wdc", wdc, WDC_USAGE},
|
||||
{"ns", ns, NS_USAGE},
|
||||
{NULL, NULL, NULL},
|
||||
};
|
||||
|
||||
|
||||
@ -74,6 +74,9 @@ struct nvme_function {
|
||||
#define WDC_USAGE \
|
||||
" nvmecontrol wdc (cap-diag|drive-log|get-crash-dump|purge|purge-montior)\n"
|
||||
|
||||
#define NS_USAGE \
|
||||
" nvmecontrol ns (create|delete|attach|detach)\n"
|
||||
|
||||
void devlist(int argc, char *argv[]);
|
||||
void identify(int argc, char *argv[]);
|
||||
void perftest(int argc, char *argv[]);
|
||||
@ -83,6 +86,7 @@ void firmware(int argc, char *argv[]);
|
||||
void format(int argc, char *argv[]);
|
||||
void power(int argc, char *argv[]);
|
||||
void wdc(int argc, char *argv[]);
|
||||
void ns(int argc, char *argv[]);
|
||||
|
||||
int open_dev(const char *str, int *fd, int show_error, int exit_on_error);
|
||||
void parse_ns_str(const char *ns_str, char *ctrlr_str, uint32_t *nsid);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user