70d20ed34f
NVMe reservations are quite alike to SCSI persistent reservations and can be used in clustered setups with shared multiport storage. MFC after: 10 days Relnotes: yes Sponsored by: iXsystems, Inc.
223 lines
6.3 KiB
C
223 lines
6.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (C) 2019 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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* 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 <sys/ioccom.h>
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#include <ctype.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdbool.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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/* Tables for command line parsing */
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static cmd_fn_t sanitize;
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static struct options {
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bool ause;
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bool ndas;
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bool oipbp;
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bool reportonly;
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uint8_t owpass;
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uint32_t ovrpat;
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const char *sanact;
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const char *dev;
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} opt = {
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.ause = false,
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.ndas = false,
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.oipbp = false,
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.reportonly = false,
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.owpass = 1,
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.ovrpat = 0,
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.sanact = NULL,
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.dev = NULL,
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};
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static const struct opts sanitize_opts[] = {
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#define OPT(l, s, t, opt, addr, desc) { l, s, t, &opt.addr, desc }
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OPT("ause", 'U', arg_none, opt, ause,
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"Allow Unrestricted Sanitize Exit"),
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OPT("ndas", 'd', arg_none, opt, ndas,
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"No Deallocate After Sanitize"),
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OPT("oipbp", 'I', arg_none, opt, oipbp,
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"Overwrite Invert Pattern Between Passes"),
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OPT("reportonly", 'r', arg_none, opt, reportonly,
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"Report previous sanitize status"),
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OPT("owpass", 'c', arg_uint8, opt, owpass,
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"Overwrite Pass Count"),
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OPT("ovrpat", 'p', arg_uint32, opt, ovrpat,
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"Overwrite Pattern"),
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OPT("sanact", 'a', arg_string, opt, sanact,
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"Sanitize Action (block, overwrite, crypto)"),
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{ NULL, 0, arg_none, NULL, NULL }
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};
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#undef OPT
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static const struct args sanitize_args[] = {
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{ arg_string, &opt.dev, "controller-id" },
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{ arg_none, NULL, NULL },
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};
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static struct cmd sanitize_cmd = {
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.name = "sanitize",
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.fn = sanitize,
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.descr = "Sanitize NVM subsystem",
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.ctx_size = sizeof(opt),
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.opts = sanitize_opts,
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.args = sanitize_args,
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};
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CMD_COMMAND(sanitize_cmd);
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/* End of tables for command line parsing */
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static void
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sanitize(const struct cmd *f, int argc, char *argv[])
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{
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struct nvme_controller_data cd;
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struct nvme_pt_command pt;
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struct nvme_sanitize_status_page ss;
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char *path;
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uint32_t nsid;
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int sanact = 0, fd, delay = 1;
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if (arg_parse(argc, argv, f))
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return;
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if (opt.sanact == NULL) {
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if (!opt.reportonly) {
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fprintf(stderr, "Sanitize Action is not specified\n");
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arg_help(argc, argv, f);
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}
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} else {
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if (strcmp(opt.sanact, "exitfailure") == 0)
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sanact = 1;
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else if (strcmp(opt.sanact, "block") == 0)
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sanact = 2;
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else if (strcmp(opt.sanact, "overwrite") == 0)
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sanact = 3;
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else if (strcmp(opt.sanact, "crypto") == 0)
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sanact = 4;
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else {
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fprintf(stderr, "Incorrect Sanitize Action value\n");
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arg_help(argc, argv, f);
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}
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}
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if (opt.owpass == 0 || opt.owpass > 16) {
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fprintf(stderr, "Incorrect Overwrite Pass Count value\n");
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arg_help(argc, argv, f);
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}
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open_dev(opt.dev, &fd, 1, 1);
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get_nsid(fd, &path, &nsid);
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if (nsid != 0) {
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close(fd);
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open_dev(path, &fd, 1, 1);
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}
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free(path);
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if (opt.reportonly)
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goto wait;
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/* Check that controller can execute this command. */
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read_controller_data(fd, &cd);
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if (((cd.sanicap >> NVME_CTRLR_DATA_SANICAP_BES_SHIFT) &
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NVME_CTRLR_DATA_SANICAP_BES_MASK) == 0 && sanact == 2)
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errx(1, "controller does not support Block Erase");
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if (((cd.sanicap >> NVME_CTRLR_DATA_SANICAP_OWS_SHIFT) &
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NVME_CTRLR_DATA_SANICAP_OWS_MASK) == 0 && sanact == 3)
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errx(1, "controller does not support Overwrite");
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if (((cd.sanicap >> NVME_CTRLR_DATA_SANICAP_CES_SHIFT) &
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NVME_CTRLR_DATA_SANICAP_CES_MASK) == 0 && sanact == 4)
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errx(1, "controller does not support Crypto Erase");
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/*
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* If controller supports only one namespace, we may sanitize it.
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* If there can be more, make user explicit in his commands.
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*/
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if (nsid != 0 && cd.nn > 1)
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errx(1, "can't sanitize one of namespaces, specify controller");
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc = NVME_OPC_SANITIZE;
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pt.cmd.cdw10 = htole32((opt.ndas << 9) | (opt.oipbp << 8) |
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((opt.owpass & 0xf) << 4) | (opt.ause << 3) | sanact);
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pt.cmd.cdw11 = htole32(opt.ovrpat);
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if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
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err(1, "sanitize request failed");
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if (nvme_completion_is_error(&pt.cpl))
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errx(1, "sanitize request returned error");
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wait:
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read_logpage(fd, NVME_LOG_SANITIZE_STATUS,
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NVME_GLOBAL_NAMESPACE_TAG, 0, 0, 0, &ss, sizeof(ss));
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switch ((ss.sstat >> NVME_SS_PAGE_SSTAT_STATUS_SHIFT) &
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NVME_SS_PAGE_SSTAT_STATUS_MASK) {
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case NVME_SS_PAGE_SSTAT_STATUS_NEVER:
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printf("Never sanitized");
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break;
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case NVME_SS_PAGE_SSTAT_STATUS_COMPLETED:
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printf("Sanitize completed");
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break;
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case NVME_SS_PAGE_SSTAT_STATUS_INPROG:
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printf("Sanitize in progress: %u%% (%u/65535)\r",
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(ss.sprog * 100 + 32768) / 65536, ss.sprog);
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fflush(stdout);
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if (delay < 16)
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delay++;
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sleep(delay);
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goto wait;
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case NVME_SS_PAGE_SSTAT_STATUS_FAILED:
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printf("Sanitize failed");
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break;
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case NVME_SS_PAGE_SSTAT_STATUS_COMPLETEDWD:
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printf("Sanitize completed with deallocation");
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break;
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default:
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printf("Sanitize status unknown");
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break;
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}
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if (delay > 1)
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printf(" ");
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printf("\n");
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close(fd);
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exit(0);
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}
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