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#ifndef _VIRTIO_SCSI_H
#define _VIRTIO_SCSI_H
#define VIRTIO_SCSI_CDB_SIZE 32
#define VIRTIO_SCSI_SENSE_SIZE 96
struct virtio_scsi_config
{
u32 num_queues;
u32 seg_max;
u32 max_sectors;
u32 cmd_per_lun;
u32 event_info_size;
u32 sense_size;
u32 cdb_size;
u16 max_channel;
u16 max_target;
u32 max_lun;
} __attribute__((packed));
/* This is the first element of the "out" scatter-gather list. */
struct virtio_scsi_req_cmd {
u8 lun[8];
u64 id;
u8 task_attr;
u8 prio;
u8 crn;
char cdb[VIRTIO_SCSI_CDB_SIZE];
} __attribute__((packed));
/* This is the first element of the "in" scatter-gather list. */
struct virtio_scsi_resp_cmd {
u32 sense_len;
u32 residual;
u16 status_qualifier;
u8 status;
u8 response;
u8 sense[VIRTIO_SCSI_SENSE_SIZE];
} __attribute__((packed));
#define VIRTIO_SCSI_S_OK 0
struct disk_op_s;
int virtio_scsi_process_op(struct disk_op_s *op);
void virtio_scsi_setup(void);
#endif /* _VIRTIO_SCSI_H */
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