Add binject IO engine

[fio.git] / os / binject.h

diff --git a/os/binject.h b/os/binject.h
new file mode 100644 (file)
index 0000000..1f358f3
--- /dev/null
+++ b/os/binject.h
@@ -0,0 +1,65 @@
+#ifndef BINJECT_H
+#define BINJECT_H
+
+#include <linux/types.h>
+
+#define BINJECT_MAGIC          0x89
+#define BINJECT_VER            0x01
+#define BINJECT_MAGIC_SHIFT    8
+#define BINJECT_VER_MASK       ((1 << BINJECT_MAGIC_SHIFT) - 1)
+
+struct b_user_cmd {
+       __u16 magic;    /* INPUT */
+       __u16 type;     /* INPUT */
+       __u32 error;    /* OUTPUT */
+       __u32 flags;    /* INPUT */
+       __u32 len;      /* INPUT */
+       __u64 offset;   /* INPUT */
+       __u64 buf;      /* INPUT */
+       __u64 usr_ptr;  /* PASSED THROUGH */
+       __u64 nsec;     /* OUTPUT */
+};
+
+struct b_ioctl_cmd {
+       int fd;
+       int minor;
+};
+
+enum {
+       B_TYPE_READ             = 0,
+       B_TYPE_WRITE,
+       B_TYPE_DISCARD,
+       B_TYPE_READVOID,
+       B_TYPE_WRITEZERO,
+       B_TYPE_NR
+};
+
+enum {
+       __B_FLAG_SYNC   = 0,
+       __B_FLAG_UNPLUG,
+       __B_FLAG_NOIDLE,
+       __B_FLAG_BARRIER,
+       __B_FLAG_META,
+       __B_FLAG_RAHEAD,
+       __B_FLAG_FAILFAST_DEV,
+       __B_FLAG_FAILFAST_TRANSPORT,
+       __B_FLAG_FAILFAST_DRIVER,
+       __B_FLAG_NR,
+
+       B_FLAG_SYNC                     = 1 << __B_FLAG_SYNC,
+       B_FLAG_UNPLUG                   = 1 << __B_FLAG_UNPLUG,
+       B_FLAG_NOIDLE                   = 1 << __B_FLAG_NOIDLE,
+       B_FLAG_BARRIER                  = 1 << __B_FLAG_BARRIER,
+       B_FLAG_META                     = 1 << __B_FLAG_META,
+       B_FLAG_RAHEAD                   = 1 << __B_FLAG_RAHEAD,
+       B_FLAG_FAILFAST_DEV             = 1 << __B_FLAG_FAILFAST_DEV,
+       B_FLAG_FAILFAST_TRANSPORT       = 1 << __B_FLAG_FAILFAST_TRANSPORT,
+       B_FLAG_FAILFAST_DRIVER          = 1 << __B_FLAG_FAILFAST_DRIVER,
+};
+
+static inline void binject_buc_set_magic(struct b_user_cmd *buc)
+{
+       buc->magic = (BINJECT_MAGIC << BINJECT_MAGIC_SHIFT) | BINJECT_VER;
+}
+
+#endif