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      1 /****************************************************************************
      2  ****************************************************************************
      3  ***
      4  ***   This header was automatically generated from a Linux kernel header
      5  ***   of the same name, to make information necessary for userspace to
      6  ***   call into the kernel available to libc.  It contains only constants,
      7  ***   structures, and macros generated from the original header, and thus,
      8  ***   contains no copyrightable information.
      9  ***
     10  ***   To edit the content of this header, modify the corresponding
     11  ***   source file (e.g. under external/kernel-headers/original/) then
     12  ***   run bionic/libc/kernel/tools/update_all.py
     13  ***
     14  ***   Any manual change here will be lost the next time this script will
     15  ***   be run. You've been warned!
     16  ***
     17  ****************************************************************************
     18  ****************************************************************************/
     19 #ifndef _UAPIBLKTRACE_H
     20 #define _UAPIBLKTRACE_H
     21 #include <linux/types.h>
     22 enum blktrace_cat {
     23   BLK_TC_READ = 1 << 0,
     24   BLK_TC_WRITE = 1 << 1,
     25   BLK_TC_FLUSH = 1 << 2,
     26   BLK_TC_SYNC = 1 << 3,
     27   BLK_TC_SYNCIO = BLK_TC_SYNC,
     28   BLK_TC_QUEUE = 1 << 4,
     29   BLK_TC_REQUEUE = 1 << 5,
     30   BLK_TC_ISSUE = 1 << 6,
     31   BLK_TC_COMPLETE = 1 << 7,
     32   BLK_TC_FS = 1 << 8,
     33   BLK_TC_PC = 1 << 9,
     34   BLK_TC_NOTIFY = 1 << 10,
     35   BLK_TC_AHEAD = 1 << 11,
     36   BLK_TC_META = 1 << 12,
     37   BLK_TC_DISCARD = 1 << 13,
     38   BLK_TC_DRV_DATA = 1 << 14,
     39   BLK_TC_FUA = 1 << 15,
     40   BLK_TC_END = 1 << 15,
     41 };
     42 #define BLK_TC_SHIFT (16)
     43 #define BLK_TC_ACT(act) ((act) << BLK_TC_SHIFT)
     44 enum blktrace_act {
     45   __BLK_TA_QUEUE = 1,
     46   __BLK_TA_BACKMERGE,
     47   __BLK_TA_FRONTMERGE,
     48   __BLK_TA_GETRQ,
     49   __BLK_TA_SLEEPRQ,
     50   __BLK_TA_REQUEUE,
     51   __BLK_TA_ISSUE,
     52   __BLK_TA_COMPLETE,
     53   __BLK_TA_PLUG,
     54   __BLK_TA_UNPLUG_IO,
     55   __BLK_TA_UNPLUG_TIMER,
     56   __BLK_TA_INSERT,
     57   __BLK_TA_SPLIT,
     58   __BLK_TA_BOUNCE,
     59   __BLK_TA_REMAP,
     60   __BLK_TA_ABORT,
     61   __BLK_TA_DRV_DATA,
     62 };
     63 enum blktrace_notify {
     64   __BLK_TN_PROCESS = 0,
     65   __BLK_TN_TIMESTAMP,
     66   __BLK_TN_MESSAGE,
     67 };
     68 #define BLK_TA_QUEUE (__BLK_TA_QUEUE | BLK_TC_ACT(BLK_TC_QUEUE))
     69 #define BLK_TA_BACKMERGE (__BLK_TA_BACKMERGE | BLK_TC_ACT(BLK_TC_QUEUE))
     70 #define BLK_TA_FRONTMERGE (__BLK_TA_FRONTMERGE | BLK_TC_ACT(BLK_TC_QUEUE))
     71 #define BLK_TA_GETRQ (__BLK_TA_GETRQ | BLK_TC_ACT(BLK_TC_QUEUE))
     72 #define BLK_TA_SLEEPRQ (__BLK_TA_SLEEPRQ | BLK_TC_ACT(BLK_TC_QUEUE))
     73 #define BLK_TA_REQUEUE (__BLK_TA_REQUEUE | BLK_TC_ACT(BLK_TC_REQUEUE))
     74 #define BLK_TA_ISSUE (__BLK_TA_ISSUE | BLK_TC_ACT(BLK_TC_ISSUE))
     75 #define BLK_TA_COMPLETE (__BLK_TA_COMPLETE | BLK_TC_ACT(BLK_TC_COMPLETE))
     76 #define BLK_TA_PLUG (__BLK_TA_PLUG | BLK_TC_ACT(BLK_TC_QUEUE))
     77 #define BLK_TA_UNPLUG_IO (__BLK_TA_UNPLUG_IO | BLK_TC_ACT(BLK_TC_QUEUE))
     78 #define BLK_TA_UNPLUG_TIMER (__BLK_TA_UNPLUG_TIMER | BLK_TC_ACT(BLK_TC_QUEUE))
     79 #define BLK_TA_INSERT (__BLK_TA_INSERT | BLK_TC_ACT(BLK_TC_QUEUE))
     80 #define BLK_TA_SPLIT (__BLK_TA_SPLIT)
     81 #define BLK_TA_BOUNCE (__BLK_TA_BOUNCE)
     82 #define BLK_TA_REMAP (__BLK_TA_REMAP | BLK_TC_ACT(BLK_TC_QUEUE))
     83 #define BLK_TA_ABORT (__BLK_TA_ABORT | BLK_TC_ACT(BLK_TC_QUEUE))
     84 #define BLK_TA_DRV_DATA (__BLK_TA_DRV_DATA | BLK_TC_ACT(BLK_TC_DRV_DATA))
     85 #define BLK_TN_PROCESS (__BLK_TN_PROCESS | BLK_TC_ACT(BLK_TC_NOTIFY))
     86 #define BLK_TN_TIMESTAMP (__BLK_TN_TIMESTAMP | BLK_TC_ACT(BLK_TC_NOTIFY))
     87 #define BLK_TN_MESSAGE (__BLK_TN_MESSAGE | BLK_TC_ACT(BLK_TC_NOTIFY))
     88 #define BLK_IO_TRACE_MAGIC 0x65617400
     89 #define BLK_IO_TRACE_VERSION 0x07
     90 struct blk_io_trace {
     91   __u32 magic;
     92   __u32 sequence;
     93   __u64 time;
     94   __u64 sector;
     95   __u32 bytes;
     96   __u32 action;
     97   __u32 pid;
     98   __u32 device;
     99   __u32 cpu;
    100   __u16 error;
    101   __u16 pdu_len;
    102 };
    103 struct blk_io_trace_remap {
    104   __be32 device_from;
    105   __be32 device_to;
    106   __be64 sector_from;
    107 };
    108 enum {
    109   Blktrace_setup = 1,
    110   Blktrace_running,
    111   Blktrace_stopped,
    112 };
    113 #define BLKTRACE_BDEV_SIZE 32
    114 struct blk_user_trace_setup {
    115   char name[BLKTRACE_BDEV_SIZE];
    116   __u16 act_mask;
    117   __u32 buf_size;
    118   __u32 buf_nr;
    119   __u64 start_lba;
    120   __u64 end_lba;
    121   __u32 pid;
    122 };
    123 #endif
    124