806 struct ata_port {  struct
808 	struct ata_port_operations *ops;  argument
809 	spinlock_t		*lock;
812 	unsigned long		flags;	/* ATA_FLAG_xxx */
814 	unsigned int		pflags; /* ATA_PFLAG_xxx */
815 	unsigned int		print_id; /* user visible unique port ID */
816 	unsigned int            local_port_no; /* host local port num */
817 	unsigned int		port_no; /* 0 based port no. inside the host */
820 	struct ata_ioports	ioaddr;	/* ATA cmd/ctl/dma register blocks */
821 	u8			ctl;	/* cache of ATA control register */
822 	u8			last_ctl;	/* Cache last written value */
823 	struct ata_link*	sff_pio_task_link; /* link currently used */
847 	struct ata_port_stats	stats;  argument
848 	struct ata_host		*host;
849 	struct device 		*dev;
850 	struct device		tdev;
852 	struct mutex		scsi_scan_mutex;
853 	struct delayed_work	hotplug_task;
854 	struct delayed_work	scsi_rescan_task;
856 	unsigned int		hsm_task_state;
858 	struct list_head	eh_done_q;
859 	wait_queue_head_t	eh_wait_q;
860 	int			eh_tries;
861 	struct completion	park_req_pending;
863 	pm_message_t		pm_mesg;
864 	enum ata_lpm_policy	target_lpm_policy;
889 struct ata_port_operations {  argument
898 	void (*qc_ncq_fill_rtf)(struct ata_port *ap, u64 done_mask);  argument