Jens Axboe | 79a4318 | 2010-09-07 13:28:58 +0200 | [diff] [blame] | 1 | #ifndef BINJECT_H |
| 2 | #define BINJECT_H |
| 3 | |
| 4 | #include <linux/types.h> |
| 5 | |
| 6 | #define BINJECT_MAGIC 0x89 |
| 7 | #define BINJECT_VER 0x01 |
| 8 | #define BINJECT_MAGIC_SHIFT 8 |
| 9 | #define BINJECT_VER_MASK ((1 << BINJECT_MAGIC_SHIFT) - 1) |
| 10 | |
| 11 | struct b_user_cmd { |
| 12 | __u16 magic; /* INPUT */ |
| 13 | __u16 type; /* INPUT */ |
| 14 | __u32 error; /* OUTPUT */ |
| 15 | __u32 flags; /* INPUT */ |
| 16 | __u32 len; /* INPUT */ |
| 17 | __u64 offset; /* INPUT */ |
| 18 | __u64 buf; /* INPUT */ |
| 19 | __u64 usr_ptr; /* PASSED THROUGH */ |
| 20 | __u64 nsec; /* OUTPUT */ |
| 21 | }; |
| 22 | |
| 23 | struct b_ioctl_cmd { |
| 24 | int fd; |
| 25 | int minor; |
| 26 | }; |
| 27 | |
Jens Axboe | f0f346d | 2010-10-27 09:24:54 -0600 | [diff] [blame] | 28 | #define BINJECT_IOCTL_CHR 'J' |
| 29 | #define B_IOCTL_ADD _IOWR(BINJECT_IOCTL_CHR, 1, struct b_ioctl_cmd) |
| 30 | #define B_IOCTL_DEL _IOWR(BINJECT_IOCTL_CHR, 2, struct b_ioctl_cmd) |
| 31 | |
Jens Axboe | 79a4318 | 2010-09-07 13:28:58 +0200 | [diff] [blame] | 32 | enum { |
| 33 | B_TYPE_READ = 0, |
| 34 | B_TYPE_WRITE, |
| 35 | B_TYPE_DISCARD, |
| 36 | B_TYPE_READVOID, |
| 37 | B_TYPE_WRITEZERO, |
Jens Axboe | d01c404 | 2010-10-08 14:53:58 +0200 | [diff] [blame] | 38 | B_TYPE_READBARRIER, |
| 39 | B_TYPE_WRITEBARRIER, |
Jens Axboe | 79a4318 | 2010-09-07 13:28:58 +0200 | [diff] [blame] | 40 | B_TYPE_NR |
| 41 | }; |
| 42 | |
| 43 | enum { |
| 44 | __B_FLAG_SYNC = 0, |
| 45 | __B_FLAG_UNPLUG, |
| 46 | __B_FLAG_NOIDLE, |
| 47 | __B_FLAG_BARRIER, |
| 48 | __B_FLAG_META, |
| 49 | __B_FLAG_RAHEAD, |
| 50 | __B_FLAG_FAILFAST_DEV, |
| 51 | __B_FLAG_FAILFAST_TRANSPORT, |
| 52 | __B_FLAG_FAILFAST_DRIVER, |
| 53 | __B_FLAG_NR, |
| 54 | |
| 55 | B_FLAG_SYNC = 1 << __B_FLAG_SYNC, |
| 56 | B_FLAG_UNPLUG = 1 << __B_FLAG_UNPLUG, |
| 57 | B_FLAG_NOIDLE = 1 << __B_FLAG_NOIDLE, |
| 58 | B_FLAG_BARRIER = 1 << __B_FLAG_BARRIER, |
| 59 | B_FLAG_META = 1 << __B_FLAG_META, |
| 60 | B_FLAG_RAHEAD = 1 << __B_FLAG_RAHEAD, |
| 61 | B_FLAG_FAILFAST_DEV = 1 << __B_FLAG_FAILFAST_DEV, |
| 62 | B_FLAG_FAILFAST_TRANSPORT = 1 << __B_FLAG_FAILFAST_TRANSPORT, |
| 63 | B_FLAG_FAILFAST_DRIVER = 1 << __B_FLAG_FAILFAST_DRIVER, |
| 64 | }; |
| 65 | |
| 66 | static inline void binject_buc_set_magic(struct b_user_cmd *buc) |
| 67 | { |
| 68 | buc->magic = (BINJECT_MAGIC << BINJECT_MAGIC_SHIFT) | BINJECT_VER; |
| 69 | } |
| 70 | |
| 71 | #endif |