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);
129 pt.cmd.cdw10 = htole32(0);
131 pt.len = sizeof(*nsdata);
134 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
135 err(1, "identify request failed");
137 /* Convert data to host endian */
138 nvme_namespace_data_swapbytes(nsdata);
140 if (nvme_completion_is_error(&pt.cpl))
141 errx(1, "identify request returned error");
145 open_dev(const char *str, int *fd, int show_error, int exit_on_error)
149 snprintf(full_path, sizeof(full_path), _PATH_DEV"%s", str);
150 *fd = open(full_path, O_RDWR);
153 warn("could not open %s", full_path);
164 get_nsid(int fd, char **ctrlr_str, uint32_t *nsid)
166 struct nvme_get_nsid gnsid;
168 if (ioctl(fd, NVME_GET_NSID, &gnsid) < 0)
169 err(1, "NVME_GET_NSID ioctl failed");
170 if (ctrlr_str != NULL)
171 *ctrlr_str = strndup(gnsid.cdev, sizeof(gnsid.cdev));
177 main(int argc, char *argv[])
182 cmd_load_dir("/lib/nvmecontrol", NULL, NULL);
183 cmd_load_dir("/usr/local/lib/nvmecontrol", NULL, NULL);
185 cmd_dispatch(argc, argv, NULL);