1 /* 2 * This header was generated from the Linux kernel headers by update_headers.py, 3 * to provide necessary information from kernel to userspace, such as constants, 4 * structures, and macros, and thus, contains no copyrightable information. 5 */ 6 #ifndef _UAPIBLKTRACE_H 7 #define _UAPIBLKTRACE_H 8 #include <linux/types.h> 9 enum blktrace_cat { 10 BLK_TC_READ = 1 << 0, 11 BLK_TC_WRITE = 1 << 1, 12 BLK_TC_FLUSH = 1 << 2, 13 BLK_TC_SYNC = 1 << 3, 14 BLK_TC_SYNCIO = BLK_TC_SYNC, 15 BLK_TC_QUEUE = 1 << 4, 16 BLK_TC_REQUEUE = 1 << 5, 17 BLK_TC_ISSUE = 1 << 6, 18 BLK_TC_COMPLETE = 1 << 7, 19 BLK_TC_FS = 1 << 8, 20 BLK_TC_PC = 1 << 9, 21 BLK_TC_NOTIFY = 1 << 10, 22 BLK_TC_AHEAD = 1 << 11, 23 BLK_TC_META = 1 << 12, 24 BLK_TC_DISCARD = 1 << 13, 25 BLK_TC_DRV_DATA = 1 << 14, 26 BLK_TC_FUA = 1 << 15, 27 BLK_TC_END = 1 << 15, 28 }; 29 #define BLK_TC_SHIFT (16) 30 #define BLK_TC_ACT(act) ((act) << BLK_TC_SHIFT) 31 enum blktrace_act { 32 __BLK_TA_QUEUE = 1, 33 __BLK_TA_BACKMERGE, 34 __BLK_TA_FRONTMERGE, 35 __BLK_TA_GETRQ, 36 __BLK_TA_SLEEPRQ, 37 __BLK_TA_REQUEUE, 38 __BLK_TA_ISSUE, 39 __BLK_TA_COMPLETE, 40 __BLK_TA_PLUG, 41 __BLK_TA_UNPLUG_IO, 42 __BLK_TA_UNPLUG_TIMER, 43 __BLK_TA_INSERT, 44 __BLK_TA_SPLIT, 45 __BLK_TA_BOUNCE, 46 __BLK_TA_REMAP, 47 __BLK_TA_ABORT, 48 __BLK_TA_DRV_DATA, 49 __BLK_TA_CGROUP = 1 << 8, 50 }; 51 enum blktrace_notify { 52 __BLK_TN_PROCESS = 0, 53 __BLK_TN_TIMESTAMP, 54 __BLK_TN_MESSAGE, 55 __BLK_TN_CGROUP = __BLK_TA_CGROUP, 56 }; 57 #define BLK_TA_QUEUE (__BLK_TA_QUEUE | BLK_TC_ACT(BLK_TC_QUEUE)) 58 #define BLK_TA_BACKMERGE (__BLK_TA_BACKMERGE | BLK_TC_ACT(BLK_TC_QUEUE)) 59 #define BLK_TA_FRONTMERGE (__BLK_TA_FRONTMERGE | BLK_TC_ACT(BLK_TC_QUEUE)) 60 #define BLK_TA_GETRQ (__BLK_TA_GETRQ | BLK_TC_ACT(BLK_TC_QUEUE)) 61 #define BLK_TA_SLEEPRQ (__BLK_TA_SLEEPRQ | BLK_TC_ACT(BLK_TC_QUEUE)) 62 #define BLK_TA_REQUEUE (__BLK_TA_REQUEUE | BLK_TC_ACT(BLK_TC_REQUEUE)) 63 #define BLK_TA_ISSUE (__BLK_TA_ISSUE | BLK_TC_ACT(BLK_TC_ISSUE)) 64 #define BLK_TA_COMPLETE (__BLK_TA_COMPLETE| BLK_TC_ACT(BLK_TC_COMPLETE)) 65 #define BLK_TA_PLUG (__BLK_TA_PLUG | BLK_TC_ACT(BLK_TC_QUEUE)) 66 #define BLK_TA_UNPLUG_IO (__BLK_TA_UNPLUG_IO | BLK_TC_ACT(BLK_TC_QUEUE)) 67 #define BLK_TA_UNPLUG_TIMER (__BLK_TA_UNPLUG_TIMER | BLK_TC_ACT(BLK_TC_QUEUE)) 68 #define BLK_TA_INSERT (__BLK_TA_INSERT | BLK_TC_ACT(BLK_TC_QUEUE)) 69 #define BLK_TA_SPLIT (__BLK_TA_SPLIT) 70 #define BLK_TA_BOUNCE (__BLK_TA_BOUNCE) 71 #define BLK_TA_REMAP (__BLK_TA_REMAP | BLK_TC_ACT(BLK_TC_QUEUE)) 72 #define BLK_TA_ABORT (__BLK_TA_ABORT | BLK_TC_ACT(BLK_TC_QUEUE)) 73 #define BLK_TA_DRV_DATA (__BLK_TA_DRV_DATA | BLK_TC_ACT(BLK_TC_DRV_DATA)) 74 #define BLK_TN_PROCESS (__BLK_TN_PROCESS | BLK_TC_ACT(BLK_TC_NOTIFY)) 75 #define BLK_TN_TIMESTAMP (__BLK_TN_TIMESTAMP | BLK_TC_ACT(BLK_TC_NOTIFY)) 76 #define BLK_TN_MESSAGE (__BLK_TN_MESSAGE | BLK_TC_ACT(BLK_TC_NOTIFY)) 77 #define BLK_IO_TRACE_MAGIC 0x65617400 78 #define BLK_IO_TRACE_VERSION 0x07 79 struct blk_io_trace { 80 __u32 magic; 81 __u32 sequence; 82 __u64 time; 83 __u64 sector; 84 __u32 bytes; 85 __u32 action; 86 __u32 pid; 87 __u32 device; 88 __u32 cpu; 89 __u16 error; 90 __u16 pdu_len; 91 92 }; 93 struct blk_io_trace_remap { 94 __be32 device_from; 95 __be32 device_to; 96 __be64 sector_from; 97 }; 98 enum { 99 Blktrace_setup = 1, 100 Blktrace_running, 101 Blktrace_stopped, 102 }; 103 #define BLKTRACE_BDEV_SIZE 32 104 struct blk_user_trace_setup { 105 char name[BLKTRACE_BDEV_SIZE]; 106 __u16 act_mask; 107 __u32 buf_size; 108 __u32 buf_nr; 109 __u64 start_lba; 110 __u64 end_lba; 111 __u32 pid; 112 }; 113 #endif 114