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Annotation of qemu/roms/seabios/src/virtio-blk.h, revision 1.1.1.1

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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