blktrace_api.h File Reference

#include <linux/types.h>

Go to the source code of this file.

Data Structures
struct	blk_io_trace
struct	blk_io_trace_remap
struct	blk_user_trace_setup

Macros
#define	BLK_TC_SHIFT   (16)
#define	BLK_TC_ACT(act)   ((act) << BLK_TC_SHIFT)
#define	BLK_TA_QUEUE   (__BLK_TA_QUEUE | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_BACKMERGE   (__BLK_TA_BACKMERGE | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_FRONTMERGE   (__BLK_TA_FRONTMERGE | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_GETRQ   (__BLK_TA_GETRQ | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_SLEEPRQ   (__BLK_TA_SLEEPRQ | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_REQUEUE   (__BLK_TA_REQUEUE | BLK_TC_ACT(BLK_TC_REQUEUE))
#define	BLK_TA_ISSUE   (__BLK_TA_ISSUE | BLK_TC_ACT(BLK_TC_ISSUE))
#define	BLK_TA_COMPLETE   (__BLK_TA_COMPLETE| BLK_TC_ACT(BLK_TC_COMPLETE))
#define	BLK_TA_PLUG   (__BLK_TA_PLUG | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_UNPLUG_IO   (__BLK_TA_UNPLUG_IO | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_UNPLUG_TIMER   (__BLK_TA_UNPLUG_TIMER | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_INSERT   (__BLK_TA_INSERT | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_SPLIT   (__BLK_TA_SPLIT)
#define	BLK_TA_BOUNCE   (__BLK_TA_BOUNCE)
#define	BLK_TA_REMAP   (__BLK_TA_REMAP | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_ABORT   (__BLK_TA_ABORT | BLK_TC_ACT(BLK_TC_QUEUE))
#define	BLK_TA_DRV_DATA   (__BLK_TA_DRV_DATA | BLK_TC_ACT(BLK_TC_DRV_DATA))
#define	BLK_TN_PROCESS   (__BLK_TN_PROCESS | BLK_TC_ACT(BLK_TC_NOTIFY))
#define	BLK_TN_TIMESTAMP   (__BLK_TN_TIMESTAMP | BLK_TC_ACT(BLK_TC_NOTIFY))
#define	BLK_TN_MESSAGE   (__BLK_TN_MESSAGE | BLK_TC_ACT(BLK_TC_NOTIFY))
#define	BLK_IO_TRACE_MAGIC   0x65617400
#define	BLK_IO_TRACE_VERSION   0x07
#define	BLKTRACE_BDEV_SIZE   32

Enumerations
enum	blktrace_cat {   BLK_TC_READ = 1 << 0, BLK_TC_WRITE = 1 << 1, BLK_TC_FLUSH = 1 << 2, BLK_TC_SYNC = 1 << 3,   BLK_TC_SYNCIO = BLK_TC_SYNC, BLK_TC_QUEUE = 1 << 4, BLK_TC_REQUEUE = 1 << 5, BLK_TC_ISSUE = 1 << 6,   BLK_TC_COMPLETE = 1 << 7, BLK_TC_FS = 1 << 8, BLK_TC_PC = 1 << 9, BLK_TC_NOTIFY = 1 << 10,   BLK_TC_AHEAD = 1 << 11, BLK_TC_META = 1 << 12, BLK_TC_DISCARD = 1 << 13, BLK_TC_DRV_DATA = 1 << 14,   BLK_TC_FUA = 1 << 15, BLK_TC_END = 1 << 15 }
enum	blktrace_act {   __BLK_TA_QUEUE = 1, __BLK_TA_BACKMERGE, __BLK_TA_FRONTMERGE, __BLK_TA_GETRQ,   __BLK_TA_SLEEPRQ, __BLK_TA_REQUEUE, __BLK_TA_ISSUE, __BLK_TA_COMPLETE,   __BLK_TA_PLUG, __BLK_TA_UNPLUG_IO, __BLK_TA_UNPLUG_TIMER, __BLK_TA_INSERT,   __BLK_TA_SPLIT, __BLK_TA_BOUNCE, __BLK_TA_REMAP, __BLK_TA_ABORT,   __BLK_TA_DRV_DATA }
enum	blktrace_notify { __BLK_TN_PROCESS = 0, __BLK_TN_TIMESTAMP, __BLK_TN_MESSAGE }
enum	{ Blktrace_setup = 1, Blktrace_running, Blktrace_stopped }

Macro Definition Documentation

#define BLK_IO_TRACE_MAGIC   0x65617400

Definition at line 92 of file blktrace_api.h.

#define BLK_IO_TRACE_VERSION   0x07

Definition at line 93 of file blktrace_api.h.

#define BLK_TA_ABORT   (__BLK_TA_ABORT | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 85 of file blktrace_api.h.

#define BLK_TA_BACKMERGE   (__BLK_TA_BACKMERGE | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 71 of file blktrace_api.h.

#define BLK_TA_BOUNCE   (__BLK_TA_BOUNCE)

Definition at line 83 of file blktrace_api.h.

#define BLK_TA_COMPLETE   (__BLK_TA_COMPLETE| BLK_TC_ACT(BLK_TC_COMPLETE))

Definition at line 77 of file blktrace_api.h.

#define BLK_TA_DRV_DATA   (__BLK_TA_DRV_DATA | BLK_TC_ACT(BLK_TC_DRV_DATA))

Definition at line 86 of file blktrace_api.h.

#define BLK_TA_FRONTMERGE   (__BLK_TA_FRONTMERGE | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 72 of file blktrace_api.h.

#define BLK_TA_GETRQ   (__BLK_TA_GETRQ | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 73 of file blktrace_api.h.

#define BLK_TA_INSERT   (__BLK_TA_INSERT | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 81 of file blktrace_api.h.

#define BLK_TA_ISSUE   (__BLK_TA_ISSUE | BLK_TC_ACT(BLK_TC_ISSUE))

Definition at line 76 of file blktrace_api.h.

#define BLK_TA_PLUG   (__BLK_TA_PLUG | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 78 of file blktrace_api.h.

#define BLK_TA_QUEUE   (__BLK_TA_QUEUE | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 70 of file blktrace_api.h.

#define BLK_TA_REMAP   (__BLK_TA_REMAP | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 84 of file blktrace_api.h.

#define BLK_TA_REQUEUE   (__BLK_TA_REQUEUE | BLK_TC_ACT(BLK_TC_REQUEUE))

Definition at line 75 of file blktrace_api.h.

#define BLK_TA_SLEEPRQ   (__BLK_TA_SLEEPRQ | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 74 of file blktrace_api.h.

#define BLK_TA_SPLIT   (__BLK_TA_SPLIT)

Definition at line 82 of file blktrace_api.h.

#define BLK_TA_UNPLUG_IO   (__BLK_TA_UNPLUG_IO | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 79 of file blktrace_api.h.

#define BLK_TA_UNPLUG_TIMER   (__BLK_TA_UNPLUG_TIMER | BLK_TC_ACT(BLK_TC_QUEUE))

Definition at line 80 of file blktrace_api.h.

#define BLK_TC_ACT

(

act

)

((act) << BLK_TC_SHIFT)

Definition at line 32 of file blktrace_api.h.

#define BLK_TC_SHIFT   (16)

Definition at line 31 of file blktrace_api.h.

#define BLK_TN_MESSAGE   (__BLK_TN_MESSAGE | BLK_TC_ACT(BLK_TC_NOTIFY))

Definition at line 90 of file blktrace_api.h.

#define BLK_TN_PROCESS   (__BLK_TN_PROCESS | BLK_TC_ACT(BLK_TC_NOTIFY))

Definition at line 88 of file blktrace_api.h.

#define BLK_TN_TIMESTAMP   (__BLK_TN_TIMESTAMP | BLK_TC_ACT(BLK_TC_NOTIFY))

Definition at line 89 of file blktrace_api.h.

#define BLKTRACE_BDEV_SIZE   32

Definition at line 127 of file blktrace_api.h.

Enumeration Type Documentation

anonymous enum

Enumerator:

Blktrace_setup
Blktrace_running
Blktrace_stopped

Definition at line 121 of file blktrace_api.h.

enum blktrace_act

Enumerator:

__BLK_TA_QUEUE
__BLK_TA_BACKMERGE
__BLK_TA_FRONTMERGE
__BLK_TA_GETRQ
__BLK_TA_SLEEPRQ
__BLK_TA_REQUEUE
__BLK_TA_ISSUE
__BLK_TA_COMPLETE
__BLK_TA_PLUG
__BLK_TA_UNPLUG_IO
__BLK_TA_UNPLUG_TIMER
__BLK_TA_INSERT
__BLK_TA_SPLIT
__BLK_TA_BOUNCE
__BLK_TA_REMAP
__BLK_TA_ABORT
__BLK_TA_DRV_DATA

Definition at line 37 of file blktrace_api.h.

enum blktrace_cat

Enumerator:

BLK_TC_READ
BLK_TC_WRITE
BLK_TC_FLUSH
BLK_TC_SYNC
BLK_TC_SYNCIO
BLK_TC_QUEUE
BLK_TC_REQUEUE
BLK_TC_ISSUE
BLK_TC_COMPLETE
BLK_TC_FS
BLK_TC_PC
BLK_TC_NOTIFY
BLK_TC_AHEAD
BLK_TC_META
BLK_TC_DISCARD
BLK_TC_DRV_DATA
BLK_TC_FUA
BLK_TC_END

Definition at line 9 of file blktrace_api.h.

enum blktrace_notify

Enumerator:

__BLK_TN_PROCESS
__BLK_TN_TIMESTAMP
__BLK_TN_MESSAGE

Definition at line 60 of file blktrace_api.h.