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Annotation of qemu/roms/seabios/src/virtio-blk.h, revision 1.1

1.1     ! root        1: #ifndef _VIRTIO_BLK_H
        !             2: #define _VIRTIO_BLK_H
        !             3: 
        !             4: struct virtio_blk_config
        !             5: {
        !             6:     u64 capacity;
        !             7:     u32 size_max;
        !             8:     u32 seg_max;
        !             9:     u16 cylinders;
        !            10:     u8 heads;
        !            11:     u8 sectors;
        !            12:     u32 blk_size;
        !            13:     u8 physical_block_exp;
        !            14:     u8 alignment_offset;
        !            15:     u16 min_io_size;
        !            16:     u32 opt_io_size;
        !            17: } __attribute__((packed));
        !            18: 
        !            19: #define VIRTIO_BLK_F_BLK_SIZE 6
        !            20: 
        !            21: /* These two define direction. */
        !            22: #define VIRTIO_BLK_T_IN                0
        !            23: #define VIRTIO_BLK_T_OUT       1
        !            24: 
        !            25: /* This is the first element of the read scatter-gather list. */
        !            26: struct virtio_blk_outhdr {
        !            27:     /* VIRTIO_BLK_T* */
        !            28:     u32 type;
        !            29:     /* io priority. */
        !            30:     u32 ioprio;
        !            31:     /* Sector (ie. 512 byte offset) */
        !            32:     u64 sector;
        !            33: };
        !            34: 
        !            35: #define VIRTIO_BLK_S_OK                0
        !            36: #define VIRTIO_BLK_S_IOERR     1
        !            37: #define VIRTIO_BLK_S_UNSUPP    2
        !            38: 
        !            39: struct disk_op_s;
        !            40: int process_virtio_op(struct disk_op_s *op);
        !            41: void virtio_blk_setup(void);
        !            42: 
        !            43: #endif /* _VIRTIO_BLK_H */

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