ocf_io.h

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/*
 * Copyright(c) 2012-2020 Intel Corporation
 * SPDX-License-Identifier: BSD-3-Clause-Clear
 */


#ifndef __OCF_IO_H__
#define __OCF_IO_H__

#include "ocf_types.h"

struct ocf_io;

typedef void (*ocf_start_io_t)(struct ocf_io *io);

typedef void (*ocf_handle_io_t)(struct ocf_io *io, void *opaque);

typedef void (*ocf_end_io_t)(struct ocf_io *io, int error);

struct ocf_io {
        uint64_t addr;

        uint64_t flags;

        uint32_t bytes;

        uint32_t io_class;

        uint32_t dir;

        ocf_queue_t io_queue;

        ocf_start_io_t start;

        ocf_handle_io_t handle;

        ocf_end_io_t end;

        void *priv1;

        void *priv2;
};

struct ocf_io_ops {
        int (*set_data)(struct ocf_io *io, ctx_data_t *data,
                        uint32_t offset);

        ctx_data_t *(*get_data)(struct ocf_io *io);
};

void *ocf_io_get_priv(struct ocf_io *io);

void ocf_io_get(struct ocf_io *io);

void ocf_io_put(struct ocf_io *io);

static inline void ocf_io_set_cmpl(struct ocf_io *io, void *context,
                void *context2, ocf_end_io_t fn)
{
        io->priv1 = context;
        io->priv2 = context2;
        io->end = fn;
}

static inline void ocf_io_set_start(struct ocf_io *io, ocf_start_io_t fn)
{
        io->start = fn;
}

static inline void ocf_io_set_handle(struct ocf_io *io, ocf_handle_io_t fn)
{
        io->handle = fn;
}

int ocf_io_set_data(struct ocf_io *io, ctx_data_t *data, uint32_t offset);

ctx_data_t *ocf_io_get_data(struct ocf_io *io);

void ocf_io_handle(struct ocf_io *io, void *opaque);

ocf_volume_t ocf_io_get_volume(struct ocf_io *io);

#endif /* __OCF_IO_H__ */