1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright 2023 Red Hat
4 */
5
6#ifndef VDO_IO_SUBMITTER_H
7#define VDO_IO_SUBMITTER_H
8
9#include <linux/bio.h>
10
11#include "types.h"
12
13struct io_submitter;
14
15int vdo_make_io_submitter(unsigned int thread_count, unsigned int rotation_interval,
16			  unsigned int max_requests_active, struct vdo *vdo,
17			  struct io_submitter **io_submitter);
18
19void vdo_cleanup_io_submitter(struct io_submitter *io_submitter);
20
21void vdo_free_io_submitter(struct io_submitter *io_submitter);
22
23void vdo_submit_vio(struct vdo_completion *completion);
24
25void vdo_submit_data_vio(struct data_vio *data_vio);
26
27void __submit_metadata_vio(struct vio *vio, physical_block_number_t physical,
28			   bio_end_io_t callback, vdo_action_fn error_handler,
29			   blk_opf_t operation, char *data);
30
31static inline void vdo_submit_metadata_vio(struct vio *vio, physical_block_number_t physical,
32					   bio_end_io_t callback, vdo_action_fn error_handler,
33					   blk_opf_t operation)
34{
35	__submit_metadata_vio(vio, physical, callback, error_handler,
36			      operation, vio->data);
37}
38
39static inline void vdo_submit_flush_vio(struct vio *vio, bio_end_io_t callback,
40					vdo_action_fn error_handler)
41{
42	/* FIXME: Can we just use REQ_OP_FLUSH? */
43	__submit_metadata_vio(vio, 0, callback, error_handler,
44			      REQ_OP_WRITE | REQ_PREFLUSH, NULL);
45}
46
47#endif /* VDO_IO_SUBMITTER_H */
48