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
202
203
|
/*
* ZPIOS is a heavily modified version of the original PIOS test code.
* It is designed to have the test code running in the Linux kernel
* against ZFS while still being flexibly controled from user space.
*
* Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC.
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
* LLNL-CODE-403049
*
* Original PIOS Test Code
* Copyright (C) 2004 Cluster File Systems, Inc.
* Written by Peter Braam <braam@clusterfs.com>
* Atul Vidwansa <atul@clusterfs.com>
* Milind Dumbare <milind@clusterfs.com>
*
* This file is part of ZFS on Linux.
* For details, see <http://zfsonlinux.org/>.
*
* ZPIOS is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* ZPIOS is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with ZPIOS. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _ZPIOS_CTL_H
#define _ZPIOS_CTL_H
/*
* Contains shared definitions which both the userspace
* and kernelspace portions of zpios must agree on.
*/
#ifndef _KERNEL
#include <stdint.h>
#endif
#define ZPIOS_NAME "zpios"
#define ZPIOS_DEV "/dev/zpios"
#define DMU_IO 0x01
#define DMU_WRITE 0x0001
#define DMU_READ 0x0002
#define DMU_VERIFY 0x0004
#define DMU_REMOVE 0x0008
#define DMU_FPP 0x0010
#define DMU_WRITE_ZC 0x0020 /* Incompatible w/DMU_VERIFY */
#define DMU_READ_ZC 0x0040 /* Incompatible w/DMU_VERIFY */
#define DMU_WRITE_NOWAIT 0x0080
#define DMU_READ_NOPF 0x0100
#define ZPIOS_NAME_SIZE 16
#define ZPIOS_PATH_SIZE 128
#define PHASE_PRE_RUN "pre-run"
#define PHASE_PRE_CREATE "pre-create"
#define PHASE_PRE_WRITE "pre-write"
#define PHASE_PRE_READ "pre-read"
#define PHASE_PRE_REMOVE "pre-remove"
#define PHASE_POST_RUN "post-run"
#define PHASE_POST_CREATE "post-create"
#define PHASE_POST_WRITE "post-write"
#define PHASE_POST_READ "post-read"
#define PHASE_POST_REMOVE "post-remove"
#define ZPIOS_CFG_MAGIC 0x87237190U
typedef struct zpios_cfg {
uint32_t cfg_magic; /* Unique magic */
int32_t cfg_cmd; /* Config command */
int32_t cfg_arg1; /* Config command arg 1 */
int32_t cfg_rc1; /* Config response 1 */
} zpios_cfg_t;
typedef struct zpios_timespec {
uint32_t ts_sec;
uint32_t ts_nsec;
} zpios_timespec_t;
typedef struct zpios_time {
zpios_timespec_t start;
zpios_timespec_t stop;
zpios_timespec_t delta;
} zpios_time_t;
typedef struct zpios_stats {
zpios_time_t total_time;
zpios_time_t cr_time;
zpios_time_t rm_time;
zpios_time_t wr_time;
zpios_time_t rd_time;
uint64_t wr_data;
uint64_t wr_chunks;
uint64_t rd_data;
uint64_t rd_chunks;
} zpios_stats_t;
#define ZPIOS_CMD_MAGIC 0x49715385U
typedef struct zpios_cmd {
uint32_t cmd_magic; /* Unique magic */
uint32_t cmd_id; /* Run ID */
char cmd_pool[ZPIOS_NAME_SIZE]; /* Pool name */
uint64_t cmd_chunk_size; /* Chunk size */
uint32_t cmd_thread_count; /* Thread count */
uint32_t cmd_region_count; /* Region count */
uint64_t cmd_region_size; /* Region size */
uint64_t cmd_offset; /* Region offset */
uint32_t cmd_region_noise; /* Region noise */
uint32_t cmd_chunk_noise; /* Chunk noise */
uint32_t cmd_thread_delay; /* Thread delay */
uint32_t cmd_flags; /* Test flags */
char cmd_pre[ZPIOS_PATH_SIZE]; /* Pre-exec hook */
char cmd_post[ZPIOS_PATH_SIZE]; /* Post-exec hook */
char cmd_log[ZPIOS_PATH_SIZE]; /* Requested log dir */
uint64_t cmd_data_size; /* Opaque data size */
char cmd_data_str[0]; /* Opaque data region */
} zpios_cmd_t;
/* Valid ioctls */
#define ZPIOS_CFG _IOWR('f', 101, zpios_cfg_t)
#define ZPIOS_CMD _IOWR('f', 102, zpios_cmd_t)
/* Valid configuration commands */
#define ZPIOS_CFG_BUFFER_CLEAR 0x001 /* Clear text buffer */
#define ZPIOS_CFG_BUFFER_SIZE 0x002 /* Resize text buffer */
#ifndef NSEC_PER_SEC
#define NSEC_PER_SEC 1000000000L
#endif
static inline
void
zpios_timespec_normalize(zpios_timespec_t *ts, uint32_t sec, uint32_t nsec)
{
while (nsec >= NSEC_PER_SEC) {
nsec -= NSEC_PER_SEC;
sec++;
}
while (nsec < 0) {
nsec += NSEC_PER_SEC;
sec--;
}
ts->ts_sec = sec;
ts->ts_nsec = nsec;
}
static inline
zpios_timespec_t
zpios_timespec_add(zpios_timespec_t lhs, zpios_timespec_t rhs)
{
zpios_timespec_t ts_delta;
zpios_timespec_normalize(&ts_delta, lhs.ts_sec + rhs.ts_sec,
lhs.ts_nsec + rhs.ts_nsec);
return (ts_delta);
}
static inline
zpios_timespec_t
zpios_timespec_sub(zpios_timespec_t lhs, zpios_timespec_t rhs)
{
zpios_timespec_t ts_delta;
zpios_timespec_normalize(&ts_delta, lhs.ts_sec - rhs.ts_sec,
lhs.ts_nsec - rhs.ts_nsec);
return (ts_delta);
}
#ifdef _KERNEL
static inline
zpios_timespec_t
zpios_timespec_now(void)
{
zpios_timespec_t zts_now;
struct timespec ts_now;
ts_now = current_kernel_time();
zts_now.ts_sec = ts_now.tv_sec;
zts_now.ts_nsec = ts_now.tv_nsec;
return (zts_now);
}
#else
static inline
double
zpios_timespec_to_double(zpios_timespec_t ts)
{
return
((double)(ts.ts_sec) +
((double)(ts.ts_nsec) / (double)(NSEC_PER_SEC)));
}
#endif /* _KERNEL */
#endif /* _ZPIOS_CTL_H */
|
