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/** \file
 * Memory copy offload engine abstraction layer
 */

#ifndef SPDK_COPY_ENGINE_H
#define SPDK_COPY_ENGINE_H

#include "spdk/stdinc.h"

typedef void (*spdk_copy_completion_cb)(void *ref, int status);
typedef void (*spdk_copy_fini_cb)(void *cb_arg);

struct spdk_io_channel;

struct spdk_copy_task;

int spdk_copy_engine_initialize(void);
void spdk_copy_engine_finish(spdk_copy_fini_cb cb_fn, void *cb_arg);
void spdk_copy_engine_module_finish(void);

struct spdk_io_channel *spdk_copy_engine_get_io_channel(void);
int spdk_copy_submit(struct spdk_copy_task *copy_req, struct spdk_io_channel *ch, void *dst,
		     void *src, uint64_t nbytes, spdk_copy_completion_cb cb);
int spdk_copy_submit_fill(struct spdk_copy_task *copy_req, struct spdk_io_channel *ch,
			  void *dst, uint8_t fill, uint64_t nbytes, spdk_copy_completion_cb cb);
size_t spdk_copy_task_size(void);

#endif