unsigned int readid_flags);
extern int ata_dev_configure(struct ata_device *dev);
extern int sata_down_spd_limit(struct ata_link *link);
-extern int sata_set_spd_needed(struct ata_link *link);
extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel);
extern void ata_sg_clean(struct ata_queued_cmd *qc);
extern void ata_qc_free(struct ata_queued_cmd *qc);