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Fix build.
[FreeBSD/FreeBSD.git] / sbin / nvmecontrol / nvmecontrol.c
1 /*-
2  * Copyright (C) 2012-2013 Intel Corporation
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
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.
13  *
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
24  * SUCH DAMAGE.
25  */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/ioccom.h>
32 #include <sys/stat.h>
33
34 #include <ctype.h>
35 #include <errno.h>
36 #include <fcntl.h>
37 #include <stdbool.h>
38 #include <stddef.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <sysexits.h>
43 #include <unistd.h>
44
45 #include "nvmecontrol.h"
46
47 typedef void (*nvme_fn_t)(int argc, char *argv[]);
48
49 static struct nvme_function {
50         const char      *name;
51         nvme_fn_t       fn;
52         const char      *usage;
53 } funcs[] = {
54         {"devlist",     devlist,        DEVLIST_USAGE},
55         {"identify",    identify,       IDENTIFY_USAGE},
56         {"perftest",    perftest,       PERFTEST_USAGE},
57         {"reset",       reset,          RESET_USAGE},
58         {"logpage",     logpage,        LOGPAGE_USAGE},
59         {"firmware",    firmware,       FIRMWARE_USAGE},
60         {NULL,          NULL,           NULL},
61 };
62
63 static void
64 usage(void)
65 {
66         struct nvme_function *f;
67
68         f = funcs;
69         fprintf(stderr, "usage:\n");
70         while (f->name != NULL) {
71                 fprintf(stderr, "%s", f->usage);
72                 f++;
73         }
74         exit(EX_USAGE);
75 }
76
77 static void
78 print_bytes(void *data, uint32_t length)
79 {
80         uint32_t        i, j;
81         uint8_t         *p, *end;
82
83         end = (uint8_t *)data + length;
84
85         for (i = 0; i < length; i++) {
86                 p = (uint8_t *)data + (i*16);
87                 printf("%03x: ", i*16);
88                 for (j = 0; j < 16 && p < end; j++)
89                         printf("%02x ", *p++);
90                 if (p >= end)
91                         break;
92                 printf("\n");
93         }
94         printf("\n");
95 }
96
97 static void
98 print_dwords(void *data, uint32_t length)
99 {
100         uint32_t        *p;
101         uint32_t        i, j;
102
103         p = (uint32_t *)data;
104         length /= sizeof(uint32_t);
105
106         for (i = 0; i < length; i+=8) {
107                 printf("%03x: ", i*4);
108                 for (j = 0; j < 8; j++)
109                         printf("%08x ", p[i+j]);
110                 printf("\n");
111         }
112
113         printf("\n");
114 }
115
116 void
117 print_hex(void *data, uint32_t length)
118 {
119         if (length >= sizeof(uint32_t) || length % sizeof(uint32_t) == 0)
120                 print_dwords(data, length);
121         else
122                 print_bytes(data, length);
123 }
124
125 void
126 read_controller_data(int fd, struct nvme_controller_data *cdata)
127 {
128         struct nvme_pt_command  pt;
129
130         memset(&pt, 0, sizeof(pt));
131         pt.cmd.opc = NVME_OPC_IDENTIFY;
132         pt.cmd.cdw10 = 1;
133         pt.buf = cdata;
134         pt.len = sizeof(*cdata);
135         pt.is_read = 1;
136
137         if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) {
138                 printf("Identify request failed. errno=%d (%s)\n",
139                     errno, strerror(errno));
140                 exit(EX_IOERR);
141         }
142
143         if (nvme_completion_is_error(&pt.cpl)) {
144                 printf("Passthrough command returned error.\n");
145                 exit(EX_IOERR);
146         }
147 }
148
149 void
150 read_namespace_data(int fd, int nsid, struct nvme_namespace_data *nsdata)
151 {
152         struct nvme_pt_command  pt;
153
154         memset(&pt, 0, sizeof(pt));
155         pt.cmd.opc = NVME_OPC_IDENTIFY;
156         pt.cmd.nsid = nsid;
157         pt.buf = nsdata;
158         pt.len = sizeof(*nsdata);
159         pt.is_read = 1;
160
161         if (ioctl(fd, NVME_PASSTHROUGH_CMD, &pt) < 0) {
162                 printf("Identify request failed. errno=%d (%s)\n",
163                     errno, strerror(errno));
164                 exit(EX_IOERR);
165         }
166
167         if (nvme_completion_is_error(&pt.cpl)) {
168                 printf("Passthrough command returned error.\n");
169                 exit(EX_IOERR);
170         }
171 }
172
173 int
174 open_dev(const char *str, int *fd, int show_error, int exit_on_error)
175 {
176         struct stat     devstat;
177         char            full_path[64];
178
179         if (!strnstr(str, NVME_CTRLR_PREFIX, strlen(NVME_CTRLR_PREFIX))) {
180                 if (show_error)
181                         fprintf(stderr,
182                             "Controller/namespace IDs must begin with '%s'.\n",
183                             NVME_CTRLR_PREFIX);
184                 if (exit_on_error)
185                         exit(EX_USAGE);
186                 else
187                         return (EX_USAGE);
188         }
189
190         snprintf(full_path, sizeof(full_path), "/dev/%s", str);
191         if (stat(full_path, &devstat) != 0) {
192                 if (show_error)
193                         fprintf(stderr, "Could not stat %s. errno=%d (%s)\n",
194                             full_path, errno, strerror(errno));
195                 if (exit_on_error)
196                         exit(EX_NOINPUT);
197                 else
198                         return (EX_NOINPUT);
199         }
200
201         *fd = open(full_path, O_RDWR);
202         if (*fd < 0) {
203                 if (show_error)
204                         fprintf(stderr, "Could not open %s. errno=%d (%s)\n",
205                             full_path, errno, strerror(errno));
206                 if (exit_on_error)
207                         exit(EX_NOPERM);
208                 else
209                         return (EX_NOPERM);
210         }
211
212         return (EX_OK);
213 }
214
215 int
216 main(int argc, char *argv[])
217 {
218         struct nvme_function *f;
219
220         if (argc < 2)
221                 usage();
222
223         f = funcs;
224         while (f->name != NULL) {
225                 if (strcmp(argv[1], f->name) == 0)
226                         f->fn(argc-1, &argv[1]);
227                 f++;
228         }
229
230         usage();
231
232         return (0);
233 }