X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=ioengine.h;h=7249df6a9705c5089dab08d732835c6643fe35e0;hp=abf2b464d8dfcef30a4b4693536da89723c8ba08;hb=d0f2828f6e49613d944a980e018cbfc02901264b;hpb=a8075704d3392fede7bd7cfa394616fa0eed7ae0

diff --git a/ioengine.h b/ioengine.h
index abf2b464..7249df6a 100644
--- a/ioengine.h
+++ b/ioengine.h
@@ -7,6 +7,7 @@
 #include "io_ddir.h"
 #include "debug.h"
 #include "file.h"
+#include "workqueue.h"
 
 #ifdef CONFIG_LIBAIO
 #include <libaio.h>
@@ -15,12 +16,12 @@
 #include <guasi.h>
 #endif
 
-#define FIO_IOOPS_VERSION	17
+#define FIO_IOOPS_VERSION	23
 
 enum {
 	IO_U_F_FREE		= 1 << 0,
 	IO_U_F_FLIGHT		= 1 << 1,
-	IO_U_F_FREE_DEF		= 1 << 2,
+	IO_U_F_NO_FILE_PUT	= 1 << 2,
 	IO_U_F_IN_CUR_DEPTH	= 1 << 3,
 	IO_U_F_BUSY_OK		= 1 << 4,
 	IO_U_F_TRIMMED		= 1 << 5,
@@ -45,12 +46,16 @@ struct io_u {
 	 */
 	enum fio_ddir acct_ddir;
 
+	/*
+	 * Write generation
+	 */
+	unsigned short numberio;
+
 	/*
 	 * Allocated/set buffer and length
 	 */
 	unsigned long buflen;
 	unsigned long long offset;
-	unsigned short numberio;
 	void *buf;
 
 	/*
@@ -73,6 +78,28 @@ 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;
+	};
+
+	union {
+		struct flist_head verify_list;
+		struct workqueue_work work;
+	};
+
+	/*
+	 * Callback for io completion
+	 */
+	int (*end_io)(struct thread_data *, struct io_u **);
+
 	union {
 #ifdef CONFIG_LIBAIO
 		struct iocb iocb;
@@ -97,25 +124,6 @@ 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 *);
 };
 
 /*
@@ -129,7 +137,7 @@ enum {
 
 struct ioengine_ops {
 	struct flist_head list;
-	char name[16];
+	const char *name;
 	int version;
 	int flags;
 	int (*setup)(struct thread_data *);
@@ -137,20 +145,23 @@ struct ioengine_ops {
 	int (*prep)(struct thread_data *, struct io_u *);
 	int (*queue)(struct thread_data *, struct io_u *);
 	int (*commit)(struct thread_data *);
-	int (*getevents)(struct thread_data *, unsigned int, unsigned int, struct timespec *);
+	int (*getevents)(struct thread_data *, unsigned int, unsigned int, const struct timespec *);
 	struct io_u *(*event)(struct thread_data *, int);
+	char *(*errdetails)(struct io_u *);
 	int (*cancel)(struct thread_data *, struct io_u *);
 	void (*cleanup)(struct thread_data *);
 	int (*open_file)(struct thread_data *, struct fio_file *);
 	int (*close_file)(struct thread_data *, struct fio_file *);
+	int (*invalidate)(struct thread_data *, struct fio_file *);
+	int (*unlink_file)(struct thread_data *, struct fio_file *);
 	int (*get_file_size)(struct thread_data *, struct fio_file *);
 	void (*terminate)(struct thread_data *);
+	int (*iomem_alloc)(struct thread_data *, size_t);
+	void (*iomem_free)(struct thread_data *);
 	int (*io_u_init)(struct thread_data *, struct io_u *);
 	void (*io_u_free)(struct thread_data *, struct io_u *);
 	int option_struct_size;
 	struct fio_option *options;
-	void *data;
-	void *dlhandle;
 };
 
 enum fio_ioengine_flags {
@@ -165,6 +176,7 @@ enum fio_ioengine_flags {
 	FIO_BARRIER	= 1 << 8,	/* engine supports barriers */
 	FIO_MEMALIGN	= 1 << 9,	/* engine wants aligned memory */
 	FIO_BIT_BASED	= 1 << 10,	/* engine uses a bit base (e.g. uses Kbit as opposed to KB) */
+	FIO_FAKEIO	= 1 << 11,	/* engine pretends to do IO */
 };
 
 /*
@@ -179,10 +191,11 @@ extern int __must_check td_io_init(struct thread_data *);
 extern int __must_check td_io_prep(struct thread_data *, struct io_u *);
 extern int __must_check td_io_queue(struct thread_data *, struct io_u *);
 extern int __must_check td_io_sync(struct thread_data *, struct fio_file *);
-extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, struct timespec *);
+extern int __must_check td_io_getevents(struct thread_data *, unsigned int, unsigned int, const struct timespec *);
 extern int __must_check td_io_commit(struct thread_data *);
 extern int __must_check td_io_open_file(struct thread_data *, struct fio_file *);
 extern int td_io_close_file(struct thread_data *, struct fio_file *);
+extern int td_io_unlink_file(struct thread_data *, struct fio_file *);
 extern int __must_check td_io_get_file_size(struct thread_data *, struct fio_file *);
 
 extern struct ioengine_ops *load_ioengine(struct thread_data *, const char *);
@@ -201,20 +214,20 @@ extern struct io_u *get_io_u(struct thread_data *);
 extern void put_io_u(struct thread_data *, struct io_u *);
 extern void clear_io_u(struct thread_data *, struct io_u *);
 extern void requeue_io_u(struct thread_data *, struct io_u **);
-extern int __must_check io_u_sync_complete(struct thread_data *, struct io_u *, uint64_t *);
-extern int __must_check io_u_queued_complete(struct thread_data *, int, uint64_t *);
+extern int __must_check io_u_sync_complete(struct thread_data *, struct io_u *);
+extern int __must_check io_u_queued_complete(struct thread_data *, int);
 extern void io_u_queued(struct thread_data *, struct io_u *);
-extern void io_u_quiesce(struct thread_data *);
+extern int io_u_quiesce(struct thread_data *);
 extern void io_u_log_error(struct thread_data *, struct io_u *);
 extern void io_u_mark_depth(struct thread_data *, unsigned int);
 extern void fill_io_buffer(struct thread_data *, void *, unsigned int, unsigned int);
 extern void io_u_fill_buffer(struct thread_data *td, struct io_u *, unsigned int, unsigned int);
 void io_u_mark_complete(struct thread_data *, unsigned int);
 void io_u_mark_submit(struct thread_data *, unsigned int);
-int queue_full(struct thread_data *);
+bool queue_full(const struct thread_data *);
 
-int do_io_u_sync(struct thread_data *, struct io_u *);
-int do_io_u_trim(struct thread_data *, struct io_u *);
+int do_io_u_sync(const struct thread_data *, struct io_u *);
+int do_io_u_trim(const struct thread_data *, struct io_u *);
 
 #ifdef FIO_INC_DEBUG
 static inline void dprint_io_u(struct io_u *io_u, const char *p)
@@ -224,12 +237,9 @@ static inline void dprint_io_u(struct io_u *io_u, const char *p)
 	dprint(FD_IO, "%s: io_u %p: off=%llu/len=%lu/ddir=%d", p, io_u,
 					(unsigned long long) io_u->offset,
 					io_u->buflen, io_u->ddir);
-	if (fio_debug & (1 << FD_IO)) {
-		if (f)
-			log_info("/%s", f->file_name);
-
-		log_info("\n");
-	}
+	if (f)
+		dprint(FD_IO, "/%s", f->file_name);
+	dprint(FD_IO, "\n");
 }
 #else
 #define dprint_io_u(io_u, p)
@@ -243,4 +253,9 @@ static inline enum fio_ddir acct_ddir(struct io_u *io_u)
 	return io_u->ddir;
 }
 
+#define io_u_clear(td, io_u, val)	\
+	td_flags_clear((td), &(io_u->flags), (val))
+#define io_u_set(td, io_u, val)		\
+	td_flags_set((td), &(io_u)->flags, (val))
+
 #endif