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.pc/0019-Minor-split-up-virtio_blk_setup.patch/src/virtio-blk.h

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#ifndef _VIRTIO_BLK_H

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#define _VIRTIO_BLK_H

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struct virtio_blk_config

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{

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    u64 capacity;

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    u32 size_max;

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    u32 seg_max;

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    u16 cylinders;

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    u8 heads;

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    u8 sectors;

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    u32 blk_size;

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    u8 physical_block_exp;

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    u8 alignment_offset;

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    u16 min_io_size;

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    u32 opt_io_size;

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} __attribute__((packed));

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/* These two define direction. */

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#define VIRTIO_BLK_T_IN         0

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#define VIRTIO_BLK_T_OUT        1

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/* This is the first element of the read scatter-gather list. */

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struct virtio_blk_outhdr {

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    /* VIRTIO_BLK_T* */

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    u32 type;

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    /* io priority. */

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    u32 ioprio;

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    /* Sector (ie. 512 byte offset) */

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    u64 sector;

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};

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#define VIRTIO_BLK_S_OK         0

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#define VIRTIO_BLK_S_IOERR      1

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#define VIRTIO_BLK_S_UNSUPP     2

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struct disk_op_s;

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int process_virtio_op(struct disk_op_s *op);

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void virtio_blk_setup(void);

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#endif /* _VIRTIO_BLK_H */

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