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
|
/*
* Copyright (c) International Business Machines Corp., 2006
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Artem Bityutskiy (Битюцкий Артём)
*/
#ifndef __UBI_DEBUG_H__
#define __UBI_DEBUG_H__
void ubi_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len);
void ubi_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr);
void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr);
#include <linux/random.h>
#define ubi_assert(expr) do { \
if (unlikely(!(expr))) { \
pr_crit("UBI assert failed in %s at %u (pid %d)\n", \
__func__, __LINE__, current->pid); \
dump_stack(); \
} \
} while (0)
#define ubi_dbg_print_hex_dump(l, ps, pt, r, g, b, len, a) \
print_hex_dump(l, ps, pt, r, g, b, len, a)
#define ubi_dbg_msg(type, fmt, ...) \
pr_debug("UBI DBG " type " (pid %d): " fmt "\n", current->pid, \
##__VA_ARGS__)
/* General debugging messages */
#define dbg_gen(fmt, ...) ubi_dbg_msg("gen", fmt, ##__VA_ARGS__)
/* Messages from the eraseblock association sub-system */
#define dbg_eba(fmt, ...) ubi_dbg_msg("eba", fmt, ##__VA_ARGS__)
/* Messages from the wear-leveling sub-system */
#define dbg_wl(fmt, ...) ubi_dbg_msg("wl", fmt, ##__VA_ARGS__)
/* Messages from the input/output sub-system */
#define dbg_io(fmt, ...) ubi_dbg_msg("io", fmt, ##__VA_ARGS__)
/* Initialization and build messages */
#define dbg_bld(fmt, ...) ubi_dbg_msg("bld", fmt, ##__VA_ARGS__)
void ubi_dump_vol_info(const struct ubi_volume *vol);
void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx);
void ubi_dump_av(const struct ubi_ainf_volume *av);
void ubi_dump_aeb(const struct ubi_ainf_peb *aeb, int type);
void ubi_dump_mkvol_req(const struct ubi_mkvol_req *req);
int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset,
int len);
int ubi_debugfs_init(void);
void ubi_debugfs_exit(void);
int ubi_debugfs_init_dev(struct ubi_device *ubi);
void ubi_debugfs_exit_dev(struct ubi_device *ubi);
/**
* ubi_dbg_is_bgt_disabled - if the background thread is disabled.
* @ubi: UBI device description object
*
* Returns non-zero if the UBI background thread is disabled for testing
* purposes.
*/
static inline int ubi_dbg_is_bgt_disabled(const struct ubi_device *ubi)
{
return ubi->dbg.disable_bgt;
}
/**
* ubi_dbg_is_bitflip - if it is time to emulate a bit-flip.
* @ubi: UBI device description object
*
* Returns non-zero if a bit-flip should be emulated, otherwise returns zero.
*/
static inline int ubi_dbg_is_bitflip(const struct ubi_device *ubi)
{
if (ubi->dbg.emulate_bitflips)
return !(prandom_u32() % 200);
return 0;
}
/**
* ubi_dbg_is_write_failure - if it is time to emulate a write failure.
* @ubi: UBI device description object
*
* Returns non-zero if a write failure should be emulated, otherwise returns
* zero.
*/
static inline int ubi_dbg_is_write_failure(const struct ubi_device *ubi)
{
if (ubi->dbg.emulate_io_failures)
return !(prandom_u32() % 500);
return 0;
}
/**
* ubi_dbg_is_erase_failure - if its time to emulate an erase failure.
* @ubi: UBI device description object
*
* Returns non-zero if an erase failure should be emulated, otherwise returns
* zero.
*/
static inline int ubi_dbg_is_erase_failure(const struct ubi_device *ubi)
{
if (ubi->dbg.emulate_io_failures)
return !(prandom_u32() % 400);
return 0;
}
static inline int ubi_dbg_chk_io(const struct ubi_device *ubi)
{
return ubi->dbg.chk_io;
}
static inline int ubi_dbg_chk_gen(const struct ubi_device *ubi)
{
return ubi->dbg.chk_gen;
}
#endif /* !__UBI_DEBUG_H__ */
|
