X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=ioengine.h;h=6e3c717f185414bfd20342d30635eaa60da78197;hp=19ed10bf7a5401dd13fafe5cef97cb2d32748bd0;hb=56785384eb15a937f275292109603e51a5191365;hpb=f940128526dbe468a1951cce10c2fe5dbd23875f

diff --git a/ioengine.h b/ioengine.h
index 19ed10bf..6e3c717f 100644
--- a/ioengine.h
+++ b/ioengine.h
@@ -15,7 +15,7 @@
 #include <guasi.h>
 #endif
 
-#define FIO_IOOPS_VERSION	17
+#define FIO_IOOPS_VERSION	18
 
 enum {
 	IO_U_F_FREE		= 1 << 0,
@@ -73,6 +73,25 @@ struct io_u {
 
 	struct io_piece *ipo;
 
+	unsigned int resid;
+	unsigned int error;
+
+	/*
+	 * io engine private data
+	 */
+	union {
+		unsigned int index;
+		unsigned int seen;
+		void *engine_data;
+	};
+
+	struct flist_head verify_list;
+
+	/*
+	 * Callback for io completion
+	 */
+	int (*end_io)(struct thread_data *, struct io_u *);
+
 	union {
 #ifdef CONFIG_LIBAIO
 		struct iocb iocb;
@@ -97,25 +116,6 @@ struct io_u {
 #endif
 		void *mmap_data;
 	};
-
-	unsigned int resid;
-	unsigned int error;
-
-	/*
-	 * io engine private data
-	 */
-	union {
-		unsigned int index;
-		unsigned int seen;
-		void *engine_data;
-	};
-
-	struct flist_head verify_list;
-
-	/*
-	 * Callback for io completion
-	 */
-	int (*end_io)(struct thread_data *, struct io_u *);
 };
 
 /*
@@ -167,6 +167,11 @@ enum fio_ioengine_flags {
 	FIO_BIT_BASED	= 1 << 10,	/* engine uses a bit base (e.g. uses Kbit as opposed to KB) */
 };
 
+/*
+ * External engine defined symbol to fill in the engine ops structure
+ */
+typedef void (*get_ioengine_t)(struct ioengine_ops **);
+
 /*
  * io engine entry points
  */