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>
50 #include "nvmecontrol.h"
53 print_bytes(void *data, uint32_t length)
58 end = (uint8_t *)data + length;
60 for (i = 0; i < length; i++) {
61 p = (uint8_t *)data + (i*16);
62 printf("%03x: ", i*16);
63 for (j = 0; j < 16 && p < end; j++)
64 printf("%02x ", *p++);
73 print_dwords(void *data, uint32_t length)
79 length /= sizeof(uint32_t);
81 for (i = 0; i < length; i+=8) {
82 printf("%03x: ", i*4);
83 for (j = 0; j < 8; j++)
84 printf("%08x ", p[i+j]);
92 print_hex(void *data, uint32_t length)
94 if (length >= sizeof(uint32_t) || length % sizeof(uint32_t) == 0)
95 print_dwords(data, length);
97 print_bytes(data, length);
101 read_controller_data(int fd, struct nvme_controller_data *cdata)
103 struct nvme_pt_command pt;
105 memset(&pt, 0, sizeof(pt));
106 pt.cmd.opc = NVME_OPC_IDENTIFY;
107 pt.cmd.cdw10 = htole32(1);
109 pt.len = sizeof(*cdata);
112 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
115 /* Convert data to host endian */
116 nvme_controller_data_swapbytes(cdata);
118 if (nvme_completion_is_error(&pt.cpl))
124 read_namespace_data(int fd, uint32_t nsid, struct nvme_namespace_data *nsdata)
126 struct nvme_pt_command pt;
128 memset(&pt, 0, sizeof(pt));
129 pt.cmd.opc = NVME_OPC_IDENTIFY;
130 pt.cmd.nsid = htole32(nsid);
131 pt.cmd.cdw10 = htole32(0);
133 pt.len = sizeof(*nsdata);
136 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
139 /* Convert data to host endian */
140 nvme_namespace_data_swapbytes(nsdata);
142 if (nvme_completion_is_error(&pt.cpl))
148 open_dev(const char *str, int *fd, int write, int exit_on_error)
152 snprintf(full_path, sizeof(full_path), _PATH_DEV"%s", str);
153 *fd = open(full_path, write ? O_RDWR : O_RDONLY);
156 err(EX_OSFILE, "could not open %s%s", full_path,
157 write ? " for write" : "");
166 get_nsid(int fd, char **ctrlr_str, uint32_t *nsid)
168 struct nvme_get_nsid gnsid;
170 if (ioctl(fd, NVME_GET_NSID, &gnsid) < 0)
171 err(EX_OSERR, "NVME_GET_NSID ioctl failed");
172 if (ctrlr_str != NULL)
173 *ctrlr_str = strndup(gnsid.cdev, sizeof(gnsid.cdev));
179 main(int argc, char *argv[])
184 cmd_load_dir("/lib/nvmecontrol", NULL, NULL);
185 cmd_load_dir("/usr/local/lib/nvmecontrol", NULL, NULL);
187 cmd_dispatch(argc, argv, NULL);