730 struct ata_port {  struct
732 	struct ata_port_operations *ops;  argument
733 	spinlock_t		*lock;
736 	unsigned long		flags;	/* ATA_FLAG_xxx */
738 	unsigned int		pflags; /* ATA_PFLAG_xxx */
739 	unsigned int		print_id; /* user visible unique port ID */
740 	unsigned int		port_no; /* 0 based port no. inside the host */
743 	struct ata_ioports	ioaddr;	/* ATA cmd/ctl/dma register blocks */
744 	u8			ctl;	/* cache of ATA control register */
745 	u8			last_ctl;	/* Cache last written value */
746 	struct ata_link*	sff_pio_task_link; /* link currently used */
747 	struct delayed_work	sff_pio_task;
771 	struct ata_port_stats	stats;  argument
772 	struct ata_host		*host;
773 	struct device 		*dev;
774 	struct device		tdev;
776 	struct mutex		scsi_scan_mutex;
777 	struct delayed_work	hotplug_task;
778 	struct work_struct	scsi_rescan_task;
780 	unsigned int		hsm_task_state;
782 	u32			msg_enable;
783 	struct list_head	eh_done_q;
784 	wait_queue_head_t	eh_wait_q;
785 	int			eh_tries;
786 	struct completion	park_req_pending;
788 	pm_message_t		pm_mesg;
789 	int			*pm_result;
813 struct ata_port_operations {  argument
826 	int  (*cable_detect)(struct ata_port *ap);  argument