1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2016 Nexenta Systems, Inc.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stropts.h>
#include <err.h>
#include <libdevinfo.h>
#include <sys/nvme.h>
#include <assert.h>
#include "nvmeadm.h"
static boolean_t
nvme_ioctl(int fd, int ioc, size_t *bufsize, void **buf, uint64_t arg,
uint64_t *res)
{
nvme_ioctl_t nioc = { 0 };
if (buf != NULL)
*buf = NULL;
if (res != NULL)
*res = ~0ULL;
if (bufsize != NULL && *bufsize != 0) {
assert(buf != NULL);
if ((nioc.n_buf = (uintptr_t)calloc(*bufsize, 1)) == NULL)
err(-1, "nvme_ioctl()");
nioc.n_len = *bufsize;
}
nioc.n_arg = arg;
if (ioctl(fd, ioc, &nioc) != 0) {
if (debug)
warn("nvme_ioctl()");
if (nioc.n_buf != 0)
free((void *)nioc.n_buf);
return (B_FALSE);
}
if (res != NULL)
*res = nioc.n_arg;
if (bufsize != NULL)
*bufsize = nioc.n_len;
if (buf != NULL)
*buf = (void *)nioc.n_buf;
return (B_TRUE);
}
nvme_capabilities_t *
nvme_capabilities(int fd)
{
void *cap = NULL;
size_t bufsize = sizeof (nvme_capabilities_t);
(void) nvme_ioctl(fd, NVME_IOC_CAPABILITIES, &bufsize, &cap, 0, NULL);
return (cap);
}
nvme_version_t *
nvme_version(int fd)
{
void *vs = NULL;
size_t bufsize = sizeof (nvme_version_t);
(void) nvme_ioctl(fd, NVME_IOC_VERSION, &bufsize, &vs, 0, NULL);
return (vs);
}
nvme_identify_ctrl_t *
nvme_identify_ctrl(int fd)
{
void *idctl = NULL;
size_t bufsize = NVME_IDENTIFY_BUFSIZE;
(void) nvme_ioctl(fd, NVME_IOC_IDENTIFY_CTRL, &bufsize, &idctl, 0,
NULL);
return (idctl);
}
nvme_identify_nsid_t *
nvme_identify_nsid(int fd)
{
void *idns = NULL;
size_t bufsize = NVME_IDENTIFY_BUFSIZE;
(void) nvme_ioctl(fd, NVME_IOC_IDENTIFY_NSID, &bufsize, &idns, 0, NULL);
return (idns);
}
void *
nvme_get_logpage(int fd, uint8_t logpage, size_t *bufsize)
{
void *buf = NULL;
(void) nvme_ioctl(fd, NVME_IOC_GET_LOGPAGE, bufsize, &buf, logpage,
NULL);
return (buf);
}
boolean_t
nvme_get_feature(int fd, uint8_t feature, uint32_t arg, uint64_t *res,
size_t *bufsize, void **buf)
{
return (nvme_ioctl(fd, NVME_IOC_GET_FEATURES, bufsize, buf,
(uint64_t)feature << 32 | arg, res));
}
int
nvme_intr_cnt(int fd)
{
uint64_t res = 0;
(void) nvme_ioctl(fd, NVME_IOC_INTR_CNT, NULL, NULL, 0, &res);
return ((int)res);
}
boolean_t
nvme_format_nvm(int fd, uint8_t lbaf, uint8_t ses)
{
nvme_format_nvm_t frmt = { 0 };
frmt.b.fm_lbaf = lbaf & 0xf;
frmt.b.fm_ses = ses & 0x7;
return (nvme_ioctl(fd, NVME_IOC_FORMAT, NULL, NULL, frmt.r, NULL));
}
boolean_t
nvme_detach(int fd)
{
return (nvme_ioctl(fd, NVME_IOC_DETACH, NULL, NULL, 0, NULL));
}
boolean_t
nvme_attach(int fd)
{
return (nvme_ioctl(fd, NVME_IOC_ATTACH, NULL, NULL, 0, NULL));
}
int
nvme_open(di_minor_t minor)
{
char *devpath, *path;
int fd;
if ((devpath = di_devfs_minor_path(minor)) == NULL)
err(-1, "nvme_open()");
if (asprintf(&path, "/devices%s", devpath) < 0) {
di_devfs_path_free(devpath);
err(-1, "nvme_open()");
}
di_devfs_path_free(devpath);
fd = open(path, O_RDWR);
free(path);
if (fd < 0) {
if (debug)
warn("nvme_open(%s)", path);
return (-1);
}
return (fd);
}
void
nvme_close(int fd)
{
(void) close(fd);
}
|
