2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (C) 2018 Alexander Motin <mav@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/ioccom.h>
45 #include "nvmecontrol.h"
47 #define NONE 0xffffffffu
52 /* Tables for command line parsing */
54 static cmd_fn_t format;
56 static struct options {
76 static const struct opts format_opts[] = {
77 #define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc }
78 OPT("crypto", 'C', arg_none, opt, Cflag,
79 "Crptographic erase"),
80 OPT("erase", 'E', arg_none, opt, Eflag,
82 OPT("lbaf", 'f', arg_uint32, opt, lbaf,
83 "LBA Format to apply to the media"),
84 OPT("ms", 'm', arg_uint32, opt, ms,
86 OPT("pi", 'p', arg_uint32, opt, pi,
87 "Protective information"),
88 OPT("pil", 'l', arg_uint32, opt, pil,
89 "Protective information location"),
90 OPT("ses", 's', arg_uint32, opt, ses,
91 "Secure erase settings"),
92 { NULL, 0, arg_none, NULL, NULL }
96 static const struct args format_args[] = {
97 { arg_string, &opt.dev, "controller-id|namespace-id" },
98 { arg_none, NULL, NULL },
101 static struct cmd format_cmd = {
104 .descr = "Format/erase one or all the namespaces",
105 .ctx_size = sizeof(opt),
110 CMD_COMMAND(format_cmd);
112 /* End of tables for command line parsing */
115 format(const struct cmd *f, int argc, char *argv[])
117 struct nvme_controller_data cd;
118 struct nvme_namespace_data nsd;
119 struct nvme_pt_command pt;
123 int lbaf, ms, pi, pil, ses, fd;
125 if (arg_parse(argc, argv, f))
128 if (opt.Eflag || opt.Cflag || opt.ses != SES_NONE) {
130 "Only one of -E, -C or -s may be specified\n");
131 arg_help(argc, argv, f);
147 * Check if the specified device node exists before continuing.
148 * This is a cleaner check for cases where the correct controller
149 * is specified, but an invalid namespace on that controller.
151 open_dev(target, &fd, 1, 1);
154 * If device node contains "ns", we consider it a namespace,
155 * otherwise, consider it a controller.
157 if (strstr(target, NVME_NS_PREFIX) == NULL) {
158 nsid = NVME_GLOBAL_NAMESPACE_TAG;
161 * We send FORMAT commands to the controller, not the namespace,
162 * since it is an admin cmd. The namespace ID will be specified
163 * in the command itself. So parse the namespace's device node
164 * string to get the controller substring and namespace ID.
167 parse_ns_str(target, path, &nsid);
168 open_dev(path, &fd, 1, 1);
171 /* Check that controller can execute this command. */
172 read_controller_data(fd, &cd);
173 if (((cd.oacs >> NVME_CTRLR_DATA_OACS_FORMAT_SHIFT) &
174 NVME_CTRLR_DATA_OACS_FORMAT_MASK) == 0)
175 errx(1, "controller does not support format");
176 if (((cd.fna >> NVME_CTRLR_DATA_FNA_CRYPTO_ERASE_SHIFT) &
177 NVME_CTRLR_DATA_FNA_CRYPTO_ERASE_MASK) == 0 && ses == SES_CRYPTO)
178 errx(1, "controller does not support cryptographic erase");
180 if (nsid != NVME_GLOBAL_NAMESPACE_TAG) {
181 if (((cd.fna >> NVME_CTRLR_DATA_FNA_FORMAT_ALL_SHIFT) &
182 NVME_CTRLR_DATA_FNA_FORMAT_ALL_MASK) && ses == SES_NONE)
183 errx(1, "controller does not support per-NS format");
184 if (((cd.fna >> NVME_CTRLR_DATA_FNA_ERASE_ALL_SHIFT) &
185 NVME_CTRLR_DATA_FNA_ERASE_ALL_MASK) && ses != SES_NONE)
186 errx(1, "controller does not support per-NS erase");
188 /* Try to keep previous namespace parameters. */
189 read_namespace_data(fd, nsid, &nsd);
191 lbaf = (nsd.flbas >> NVME_NS_DATA_FLBAS_FORMAT_SHIFT)
192 & NVME_NS_DATA_FLBAS_FORMAT_MASK;
193 if (lbaf > nsd.nlbaf)
194 errx(1, "LBA format is out of range");
196 ms = (nsd.flbas >> NVME_NS_DATA_FLBAS_EXTENDED_SHIFT)
197 & NVME_NS_DATA_FLBAS_EXTENDED_MASK;
199 pi = (nsd.dps >> NVME_NS_DATA_DPS_MD_START_SHIFT)
200 & NVME_NS_DATA_DPS_MD_START_MASK;
202 pil = (nsd.dps >> NVME_NS_DATA_DPS_PIT_SHIFT)
203 & NVME_NS_DATA_DPS_PIT_MASK;
206 /* We have no previous parameters, so default to zeroes. */
217 memset(&pt, 0, sizeof(pt));
218 pt.cmd.opc = NVME_OPC_FORMAT_NVM;
219 pt.cmd.nsid = htole32(nsid);
220 pt.cmd.cdw10 = htole32((ses << 9) + (pil << 8) + (pi << 5) +
223 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
224 err(1, "format request failed");
226 if (nvme_completion_is_error(&pt.cpl))
227 errx(1, "format request returned error");