827 struct ata_port {  struct
829 	struct ata_port_operations *ops;  argument
830 	spinlock_t		*lock;
833 	unsigned long		flags;	/* ATA_FLAG_xxx */
835 	unsigned int		pflags; /* ATA_PFLAG_xxx */
836 	unsigned int		print_id; /* user visible unique port ID */
837 	unsigned int            local_port_no; /* host local port num */
838 	unsigned int		port_no; /* 0 based port no. inside the host */
841 	struct ata_ioports	ioaddr;	/* ATA cmd/ctl/dma register blocks */
842 	u8			ctl;	/* cache of ATA control register */
843 	u8			last_ctl;	/* Cache last written value */
844 	struct ata_link*	sff_pio_task_link; /* link currently used */
845 	struct delayed_work	sff_pio_task;
870 	struct ata_port_stats	stats;  argument
871 	struct ata_host		*host;
872 	struct device 		*dev;
873 	struct device		tdev;
875 	struct mutex		scsi_scan_mutex;
876 	struct delayed_work	hotplug_task;
877 	struct work_struct	scsi_rescan_task;
879 	unsigned int		hsm_task_state;
881 	u32			msg_enable;
882 	struct list_head	eh_done_q;
883 	wait_queue_head_t	eh_wait_q;
884 	int			eh_tries;
885 	struct completion	park_req_pending;
887 	pm_message_t		pm_mesg;
888 	enum ata_lpm_policy	target_lpm_policy;
912 struct ata_port_operations {  argument
925 	int  (*cable_detect)(struct ata_port *ap);  argument