2 * Copyright (C) 2012-2013 Intel Corporation
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/ioccom.h>
46 #include "nvmecontrol.h"
49 static struct nvme_function funcs[] = {
50 {"devlist", devlist, DEVLIST_USAGE},
51 {"identify", identify, IDENTIFY_USAGE},
52 {"perftest", perftest, PERFTEST_USAGE},
53 {"reset", reset, RESET_USAGE},
54 {"logpage", logpage, LOGPAGE_USAGE},
55 {"firmware", firmware, FIRMWARE_USAGE},
56 {"power", power, POWER_USAGE},
57 {"wdc", wdc, WDC_USAGE},
62 gen_usage(struct nvme_function *f)
65 fprintf(stderr, "usage:\n");
66 while (f->name != NULL) {
67 fprintf(stderr, "%s", f->usage);
74 dispatch(int argc, char *argv[], struct nvme_function *tbl)
76 struct nvme_function *f = tbl;
78 while (f->name != NULL) {
79 if (strcmp(argv[1], f->name) == 0)
80 f->fn(argc-1, &argv[1]);
84 fprintf(stderr, "Unknown command: %s\n", argv[1]);
89 print_bytes(void *data, uint32_t length)
94 end = (uint8_t *)data + length;
96 for (i = 0; i < length; i++) {
97 p = (uint8_t *)data + (i*16);
98 printf("%03x: ", i*16);
99 for (j = 0; j < 16 && p < end; j++)
100 printf("%02x ", *p++);
109 print_dwords(void *data, uint32_t length)
114 p = (uint32_t *)data;
115 length /= sizeof(uint32_t);
117 for (i = 0; i < length; i+=8) {
118 printf("%03x: ", i*4);
119 for (j = 0; j < 8; j++)
120 printf("%08x ", p[i+j]);
128 print_hex(void *data, uint32_t length)
130 if (length >= sizeof(uint32_t) || length % sizeof(uint32_t) == 0)
131 print_dwords(data, length);
133 print_bytes(data, length);
137 read_controller_data(int fd, struct nvme_controller_data *cdata)
139 struct nvme_pt_command pt;
141 memset(&pt, 0, sizeof(pt));
142 pt.cmd.opc = NVME_OPC_IDENTIFY;
145 pt.len = sizeof(*cdata);
148 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
149 err(1, "identify request failed");
151 if (nvme_completion_is_error(&pt.cpl))
152 errx(1, "identify request returned error");
156 read_namespace_data(int fd, int nsid, struct nvme_namespace_data *nsdata)
158 struct nvme_pt_command pt;
160 memset(&pt, 0, sizeof(pt));
161 pt.cmd.opc = NVME_OPC_IDENTIFY;
164 pt.len = sizeof(*nsdata);
167 if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0)
168 err(1, "identify request failed");
170 if (nvme_completion_is_error(&pt.cpl))
171 errx(1, "identify request returned error");
175 open_dev(const char *str, int *fd, int show_error, int exit_on_error)
179 if (!strnstr(str, NVME_CTRLR_PREFIX, strlen(NVME_CTRLR_PREFIX))) {
181 warnx("controller/namespace ids must begin with '%s'",
189 snprintf(full_path, sizeof(full_path), _PATH_DEV"%s", str);
190 *fd = open(full_path, O_RDWR);
193 warn("could not open %s", full_path);
204 parse_ns_str(const char *ns_str, char *ctrlr_str, int *nsid)
209 * Pull the namespace id from the string. +2 skips past the "ns" part
210 * of the string. Don't search past 10 characters into the string,
211 * otherwise we know it is malformed.
213 nsloc = strnstr(ns_str, NVME_NS_PREFIX, 10);
215 *nsid = strtol(nsloc + 2, NULL, 10);
216 if (nsloc == NULL || (*nsid == 0 && errno != 0))
217 errx(1, "invalid namespace ID '%s'", ns_str);
220 * The controller string will include only the nvmX part of the
223 snprintf(ctrlr_str, nsloc - ns_str + 1, "%s", ns_str);
227 main(int argc, char *argv[])
233 dispatch(argc, argv, funcs);