2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (C) 2018-2019 Alexander Motin <mav@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include <sys/param.h>
32 #include <sys/ioccom.h>
44 #include "nvmecontrol.h"
46 #define NONE 0xffffffffu
51 /* Tables for command line parsing */
53 static cmd_fn_t format;
55 static struct options {
75 static const struct opts format_opts[] = {
76 #define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc }
77 OPT("crypto", 'C', arg_none, opt, Cflag,
78 "Crptographic erase"),
79 OPT("erase", 'E', arg_none, opt, Eflag,
81 OPT("lbaf", 'f', arg_uint32, opt, lbaf,
82 "LBA Format to apply to the media"),
83 OPT("ms", 'm', arg_uint32, opt, ms,
85 OPT("pi", 'p', arg_uint32, opt, pi,
86 "Protective information"),
87 OPT("pil", 'l', arg_uint32, opt, pil,
88 "Protective information location"),
89 OPT("ses", 's', arg_uint32, opt, ses,
90 "Secure erase settings"),
91 { NULL, 0, arg_none, NULL, NULL }
95 static const struct args format_args[] = {
96 { arg_string, &opt.dev, "controller-id|namespace-id" },
97 { arg_none, NULL, NULL },
100 static struct cmd format_cmd = {
103 .descr = "Format/erase one or all the namespaces",
104 .ctx_size = sizeof(opt),
109 CMD_COMMAND(format_cmd);
111 /* End of tables for command line parsing */
114 format(const struct cmd *f, int argc, char *argv[])
116 struct nvme_controller_data cd;
117 struct nvme_namespace_data nsd;
118 struct nvme_pt_command pt;
122 int lbaf, ms, pi, pil, ses, fd;
124 if (arg_parse(argc, argv, f))
127 if ((int)opt.Eflag + opt.Cflag + (opt.ses != SES_NONE) > 1) {
129 "Only one of -E, -C or -s may be specified\n");
130 arg_help(argc, argv, f);
145 open_dev(target, &fd, 1, 1);
146 get_nsid(fd, &path, &nsid);
148 nsid = NVME_GLOBAL_NAMESPACE_TAG;
151 * We send FORMAT commands to the controller, not the namespace,
152 * since it is an admin cmd. The namespace ID will be specified
153 * in the command itself. So parse the namespace's device node
154 * string to get the controller substring and namespace ID.
157 open_dev(path, &fd, 1, 1);
161 /* Check that controller can execute this command. */
162 read_controller_data(fd, &cd);
163 if (((cd.oacs >> NVME_CTRLR_DATA_OACS_FORMAT_SHIFT) &
164 NVME_CTRLR_DATA_OACS_FORMAT_MASK) == 0)
165 errx(1, "controller does not support format");
166 if (((cd.fna >> NVME_CTRLR_DATA_FNA_CRYPTO_ERASE_SHIFT) &
167 NVME_CTRLR_DATA_FNA_CRYPTO_ERASE_MASK) == 0 && ses == SES_CRYPTO)
168 errx(1, "controller does not support cryptographic erase");
170 if (nsid != NVME_GLOBAL_NAMESPACE_TAG) {
171 if (((cd.fna >> NVME_CTRLR_DATA_FNA_FORMAT_ALL_SHIFT) &
172 NVME_CTRLR_DATA_FNA_FORMAT_ALL_MASK) && ses == SES_NONE)
173 errx(1, "controller does not support per-NS format");
174 if (((cd.fna >> NVME_CTRLR_DATA_FNA_ERASE_ALL_SHIFT) &
175 NVME_CTRLR_DATA_FNA_ERASE_ALL_MASK) && ses != SES_NONE)
176 errx(1, "controller does not support per-NS erase");
178 /* Try to keep previous namespace parameters. */
179 read_namespace_data(fd, nsid, &nsd);
181 lbaf = (nsd.flbas >> NVME_NS_DATA_FLBAS_FORMAT_SHIFT)
182 & NVME_NS_DATA_FLBAS_FORMAT_MASK;
183 if (lbaf > nsd.nlbaf)
184 errx(1, "LBA format is out of range");
186 ms = (nsd.flbas >> NVME_NS_DATA_FLBAS_EXTENDED_SHIFT)
187 & NVME_NS_DATA_FLBAS_EXTENDED_MASK;
189 pi = (nsd.dps >> NVME_NS_DATA_DPS_MD_START_SHIFT)
190 & NVME_NS_DATA_DPS_MD_START_MASK;
192 pil = (nsd.dps >> NVME_NS_DATA_DPS_PIT_SHIFT)
193 & NVME_NS_DATA_DPS_PIT_MASK;
196 /* We have no previous parameters, so default to zeroes. */
207 memset(&pt, 0, sizeof(pt));
208 pt.cmd.opc = NVME_OPC_FORMAT_NVM;
209 pt.cmd.nsid = htole32(nsid);
210 pt.cmd.cdw10 = htole32((ses << 9) + (pil << 8) + (pi << 5) +
213 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
214 err(1, "format request failed");
216 if (nvme_completion_is_error(&pt.cpl))
217 errx(1, "format request returned error");