3b3dd3f770
This adds several previously missed but important subcommands to list namespaces and controllers. It also fixes few previously added but just found with real testing to be broken subcommands. Also while there, add possibility to explicitly specify nsid for `nvmecontrol identify` subcommand. It may be useful to specify nsids not having own devices, for example 0xffffffff, or just newly created ones. MFC after: 2 weeks Relnotes: yes Sponsored by: iXsystems, Inc.
209 lines
5.0 KiB
C
209 lines
5.0 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 <sys/ioccom.h>
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#include <sys/stat.h>
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#include <ctype.h>
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#include <dlfcn.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 <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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static void
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print_bytes(void *data, uint32_t length)
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{
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uint32_t i, j;
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uint8_t *p, *end;
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end = (uint8_t *)data + length;
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for (i = 0; i < length; i++) {
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p = (uint8_t *)data + (i*16);
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printf("%03x: ", i*16);
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for (j = 0; j < 16 && p < end; j++)
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printf("%02x ", *p++);
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if (p >= end)
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break;
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printf("\n");
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}
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printf("\n");
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}
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static void
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print_dwords(void *data, uint32_t length)
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{
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uint32_t *p;
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uint32_t i, j;
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p = (uint32_t *)data;
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length /= sizeof(uint32_t);
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for (i = 0; i < length; i+=8) {
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printf("%03x: ", i*4);
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for (j = 0; j < 8; j++)
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printf("%08x ", p[i+j]);
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printf("\n");
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}
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printf("\n");
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}
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void
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print_hex(void *data, uint32_t length)
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{
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if (length >= sizeof(uint32_t) || length % sizeof(uint32_t) == 0)
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print_dwords(data, length);
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else
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print_bytes(data, length);
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}
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void
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read_controller_data(int fd, struct nvme_controller_data *cdata)
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{
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struct nvme_pt_command pt;
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc = NVME_OPC_IDENTIFY;
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pt.cmd.cdw10 = htole32(1);
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pt.buf = cdata;
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pt.len = sizeof(*cdata);
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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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/* Convert data to host endian */
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nvme_controller_data_swapbytes(cdata);
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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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}
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void
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read_namespace_data(int fd, uint32_t nsid, struct nvme_namespace_data *nsdata)
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{
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struct nvme_pt_command pt;
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memset(&pt, 0, sizeof(pt));
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pt.cmd.opc = NVME_OPC_IDENTIFY;
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pt.cmd.nsid = htole32(nsid);
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pt.cmd.cdw10 = htole32(0);
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pt.buf = nsdata;
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pt.len = sizeof(*nsdata);
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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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/* Convert data to host endian */
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nvme_namespace_data_swapbytes(nsdata);
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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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}
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int
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open_dev(const char *str, int *fd, int show_error, int exit_on_error)
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{
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char full_path[64];
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if (!strnstr(str, NVME_CTRLR_PREFIX, strlen(NVME_CTRLR_PREFIX))) {
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if (show_error)
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warnx("controller/namespace ids must begin with '%s'",
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NVME_CTRLR_PREFIX);
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if (exit_on_error)
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exit(1);
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else
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return (EINVAL);
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}
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snprintf(full_path, sizeof(full_path), _PATH_DEV"%s", str);
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*fd = open(full_path, O_RDWR);
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if (*fd < 0) {
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if (show_error)
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warn("could not open %s", full_path);
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if (exit_on_error)
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exit(1);
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else
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return (errno);
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}
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return (0);
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}
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void
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parse_ns_str(const char *ns_str, char *ctrlr_str, uint32_t *nsid)
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{
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char *nsloc;
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/*
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* Pull the namespace id from the string. +2 skips past the "ns" part
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* of the string. Don't search past 10 characters into the string,
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* otherwise we know it is malformed.
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*/
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nsloc = strnstr(ns_str, NVME_NS_PREFIX, 10);
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if (nsloc != NULL)
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*nsid = strtol(nsloc + 2, NULL, 10);
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if (nsloc == NULL || (*nsid == 0 && errno != 0))
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errx(1, "invalid namespace ID '%s'", ns_str);
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/*
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* The controller string will include only the nvmX part of the
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* nvmeXnsY string.
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*/
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snprintf(ctrlr_str, nsloc - ns_str + 1, "%s", ns_str);
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}
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int
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main(int argc, char *argv[])
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{
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cmd_init();
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cmd_load_dir("/lib/nvmecontrol", NULL, NULL);
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cmd_load_dir("/usr/local/lib/nvmecontrol", NULL, NULL);
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cmd_dispatch(argc, argv, NULL);
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return (0);
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}
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