817 struct ata_port {  struct
819 	struct ata_port_operations *ops;  argument
820 	spinlock_t		*lock;
823 	unsigned long		flags;	/* ATA_FLAG_xxx */
825 	unsigned int		pflags; /* ATA_PFLAG_xxx */
826 	unsigned int		print_id; /* user visible unique port ID */
827 	unsigned int            local_port_no; /* host local port num */
828 	unsigned int		port_no; /* 0 based port no. inside the host */
831 	struct ata_ioports	ioaddr;	/* ATA cmd/ctl/dma register blocks */
832 	u8			ctl;	/* cache of ATA control register */
833 	u8			last_ctl;	/* Cache last written value */
834 	struct ata_link*	sff_pio_task_link; /* link currently used */
835 	struct delayed_work	sff_pio_task;
860 	struct ata_port_stats	stats;  argument
861 	struct ata_host		*host;
862 	struct device 		*dev;
863 	struct device		tdev;
865 	struct mutex		scsi_scan_mutex;
866 	struct delayed_work	hotplug_task;
867 	struct work_struct	scsi_rescan_task;
869 	unsigned int		hsm_task_state;
871 	u32			msg_enable;
872 	struct list_head	eh_done_q;
873 	wait_queue_head_t	eh_wait_q;
874 	int			eh_tries;
875 	struct completion	park_req_pending;
877 	pm_message_t		pm_mesg;
878 	enum ata_lpm_policy	target_lpm_policy;
902 struct ata_port_operations {  argument
915 	int  (*cable_detect)(struct ata_port *ap);  argument