2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (C) 2012-2013 Intel Corporation
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>
49 #include "nvmecontrol.h"
52 print_bytes(void *data, uint32_t length)
57 end = (uint8_t *)data + length;
59 for (i = 0; i < length; i++) {
60 p = (uint8_t *)data + (i*16);
61 printf("%03x: ", i*16);
62 for (j = 0; j < 16 && p < end; j++)
63 printf("%02x ", *p++);
72 print_dwords(void *data, uint32_t length)
78 length /= sizeof(uint32_t);
80 for (i = 0; i < length; i+=8) {
81 printf("%03x: ", i*4);
82 for (j = 0; j < 8; j++)
83 printf("%08x ", p[i+j]);
91 print_hex(void *data, uint32_t length)
93 if (length >= sizeof(uint32_t) || length % sizeof(uint32_t) == 0)
94 print_dwords(data, length);
96 print_bytes(data, length);
100 read_controller_data(int fd, struct nvme_controller_data *cdata)
102 struct nvme_pt_command pt;
104 memset(&pt, 0, sizeof(pt));
105 pt.cmd.opc = NVME_OPC_IDENTIFY;
106 pt.cmd.cdw10 = htole32(1);
108 pt.len = sizeof(*cdata);
111 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
112 err(1, "identify request failed");
114 /* Convert data to host endian */
115 nvme_controller_data_swapbytes(cdata);
117 if (nvme_completion_is_error(&pt.cpl))
118 errx(1, "identify request returned error");
122 read_namespace_data(int fd, uint32_t nsid, struct nvme_namespace_data *nsdata)
124 struct nvme_pt_command pt;
126 memset(&pt, 0, sizeof(pt));
127 pt.cmd.opc = NVME_OPC_IDENTIFY;
128 pt.cmd.nsid = htole32(nsid);
130 pt.len = sizeof(*nsdata);
133 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
134 err(1, "identify request failed");
136 /* Convert data to host endian */
137 nvme_namespace_data_swapbytes(nsdata);
139 if (nvme_completion_is_error(&pt.cpl))
140 errx(1, "identify request returned error");
144 open_dev(const char *str, int *fd, int show_error, int exit_on_error)
148 if (!strnstr(str, NVME_CTRLR_PREFIX, strlen(NVME_CTRLR_PREFIX))) {
150 warnx("controller/namespace ids must begin with '%s'",
158 snprintf(full_path, sizeof(full_path), _PATH_DEV"%s", str);
159 *fd = open(full_path, O_RDWR);
162 warn("could not open %s", full_path);
173 parse_ns_str(const char *ns_str, char *ctrlr_str, uint32_t *nsid)
178 * Pull the namespace id from the string. +2 skips past the "ns" part
179 * of the string. Don't search past 10 characters into the string,
180 * otherwise we know it is malformed.
182 nsloc = strnstr(ns_str, NVME_NS_PREFIX, 10);
184 *nsid = strtol(nsloc + 2, NULL, 10);
185 if (nsloc == NULL || (*nsid == 0 && errno != 0))
186 errx(1, "invalid namespace ID '%s'", ns_str);
189 * The controller string will include only the nvmX part of the
192 snprintf(ctrlr_str, nsloc - ns_str + 1, "%s", ns_str);
196 main(int argc, char *argv[])
201 cmd_load_dir("/lib/nvmecontrol", NULL, NULL);
202 cmd_load_dir("/usr/local/lib/nvmecontrol", NULL, NULL);
204 cmd_dispatch(argc, argv, NULL);