865 struct ata_port {  struct
867 	struct ata_port_operations *ops;  argument
868 	spinlock_t		*lock;
871 	unsigned long		flags;	/* ATA_FLAG_xxx */
873 	unsigned int		pflags; /* ATA_PFLAG_xxx */
874 	unsigned int		print_id; /* user visible unique port ID */
875 	unsigned int		port_no; /* 0 based port no. inside the host */
878 	struct ata_ioports	ioaddr;	/* ATA cmd/ctl/dma register blocks */
879 	u8			ctl;	/* cache of ATA control register */
880 	u8			last_ctl;	/* Cache last written value */
881 	struct ata_link*	sff_pio_task_link; /* link currently used */
905 	struct ata_port_stats	stats;  argument
906 	struct ata_host		*host;
907 	struct device 		*dev;
908 	struct device		tdev;
910 	struct mutex		scsi_scan_mutex;
911 	struct delayed_work	hotplug_task;
912 	struct delayed_work	scsi_rescan_task;
914 	unsigned int		hsm_task_state;
916 	struct list_head	eh_done_q;
917 	wait_queue_head_t	eh_wait_q;
918 	int			eh_tries;
919 	struct completion	park_req_pending;
944 struct ata_port_operations {  argument
953 	void (*qc_ncq_fill_rtf)(struct ata_port *ap, u64 done_mask);  argument