Commit | Line | Data |
---|---|---|
7c9b1bce JA |
1 | #ifndef FIO_DISKUTIL_H |
2 | #define FIO_DISKUTIL_H | |
cc372b17 | 3 | #include "json.h" |
d09a64a0 JA |
4 | #define FIO_DU_NAME_SZ 64 |
5 | ||
27357187 JA |
6 | extern volatile int disk_util_exit; |
7 | ||
a3b4cf7d | 8 | struct disk_util_stats { |
d09a64a0 JA |
9 | uint32_t ios[2]; |
10 | uint32_t merges[2]; | |
11 | uint64_t sectors[2]; | |
12 | uint32_t ticks[2]; | |
13 | uint32_t io_ticks; | |
14 | uint32_t time_in_queue; | |
15 | uint64_t msec; | |
16 | }; | |
17 | ||
a3b4cf7d JA |
18 | /* |
19 | * Disk utils as read in /sys/block/<dev>/stat | |
20 | */ | |
21 | struct disk_util_stat { | |
22 | uint8_t name[FIO_DU_NAME_SZ]; | |
23 | struct disk_util_stats s; | |
24 | }; | |
25 | ||
d09a64a0 JA |
26 | struct disk_util_agg { |
27 | uint32_t ios[2]; | |
28 | uint32_t merges[2]; | |
29 | uint64_t sectors[2]; | |
30 | uint32_t ticks[2]; | |
31 | uint32_t io_ticks; | |
32 | uint32_t time_in_queue; | |
33 | uint32_t slavecount; | |
34 | fio_fp64_t max_util; | |
7c9b1bce JA |
35 | }; |
36 | ||
37 | /* | |
38 | * Per-device disk util management | |
39 | */ | |
40 | struct disk_util { | |
41 | struct flist_head list; | |
42 | /* If this disk is a slave, hook it into the master's | |
43 | * list using this head. | |
44 | */ | |
45 | struct flist_head slavelist; | |
46 | ||
47 | char *name; | |
48 | char *sysfs_root; | |
4b919f77 | 49 | char path[PATH_MAX]; |
7c9b1bce JA |
50 | int major, minor; |
51 | ||
52 | struct disk_util_stat dus; | |
53 | struct disk_util_stat last_dus; | |
54 | ||
d09a64a0 JA |
55 | struct disk_util_agg agg; |
56 | ||
7c9b1bce JA |
57 | /* For software raids, this entry maintains pointers to the |
58 | * entries for the slave devices. The disk_util entries for | |
59 | * the slaves devices should primarily be maintained through | |
60 | * the disk_list list, i.e. for memory allocation and | |
61 | * de-allocation, etc. Whereas this list should be used only | |
62 | * for aggregating a software RAID's disk util figures. | |
63 | */ | |
64 | struct flist_head slaves; | |
65 | ||
7c9b1bce JA |
66 | struct timeval time; |
67 | ||
68 | struct fio_mutex *lock; | |
69 | unsigned long users; | |
70 | }; | |
71 | ||
e99ca81d | 72 | static inline void disk_util_mod(struct disk_util *du, int val) |
7c9b1bce JA |
73 | { |
74 | if (du) { | |
e99ca81d JA |
75 | struct flist_head *n; |
76 | ||
7c9b1bce | 77 | fio_mutex_down(du->lock); |
e99ca81d JA |
78 | du->users += val; |
79 | ||
80 | flist_for_each(n, &du->slavelist) { | |
81 | struct disk_util *slave; | |
82 | ||
83 | slave = flist_entry(n, struct disk_util, slavelist); | |
84 | slave->users += val; | |
85 | } | |
7c9b1bce JA |
86 | fio_mutex_up(du->lock); |
87 | } | |
88 | } | |
e99ca81d JA |
89 | static inline void disk_util_inc(struct disk_util *du) |
90 | { | |
91 | disk_util_mod(du, 1); | |
92 | } | |
7c9b1bce JA |
93 | |
94 | static inline void disk_util_dec(struct disk_util *du) | |
95 | { | |
e99ca81d | 96 | disk_util_mod(du, -1); |
7c9b1bce JA |
97 | } |
98 | ||
99 | #define DISK_UTIL_MSEC (250) | |
100 | ||
d09a64a0 JA |
101 | extern struct flist_head disk_list; |
102 | ||
9ec7779f JA |
103 | extern void wait_for_disk_thread_exit(void); |
104 | ||
7c9b1bce JA |
105 | /* |
106 | * disk util stuff | |
107 | */ | |
108 | #ifdef FIO_HAVE_DISK_UTIL | |
f2f788dd | 109 | extern void print_disk_util(struct disk_util_stat *, struct disk_util_agg *, int terse); |
cc372b17 | 110 | extern void show_disk_util(int terse, struct json_object *parent); |
952b05e0 CF |
111 | extern void json_array_add_disk_util(struct disk_util_stat *dus, |
112 | struct disk_util_agg *agg, struct json_array *parent); | |
7c9b1bce | 113 | extern void init_disk_util(struct thread_data *); |
9ec7779f JA |
114 | extern int update_io_ticks(void); |
115 | extern void setup_disk_util(void); | |
27357187 | 116 | extern void disk_util_prune_entries(void); |
7c9b1bce | 117 | #else |
941bda94 JA |
118 | static inline void print_disk_util(struct disk_util_stat *du, |
119 | struct disk_util_agg *agg, int terse) | |
120 | { | |
121 | } | |
cc372b17 | 122 | #define show_disk_util(terse, parent) |
27357187 | 123 | #define disk_util_prune_entries() |
7c9b1bce | 124 | #define init_disk_util(td) |
9ec7779f | 125 | #define setup_disk_util() |
952b05e0 CF |
126 | #define json_array_add_disk_util(dus, agg, parent) |
127 | ||
9ec7779f JA |
128 | static inline int update_io_ticks(void) |
129 | { | |
27357187 | 130 | return disk_util_exit; |
9ec7779f | 131 | } |
7c9b1bce JA |
132 | #endif |
133 | ||
27357187 JA |
134 | static inline void disk_util_start_exit(void) |
135 | { | |
136 | disk_util_exit = 1; | |
137 | } | |
7c9b1bce | 138 | #endif |