107 struct xdb {  struct
109 	dev_info_t	*xs_dip;
111 	domid_t		xs_peer;
113 	uint32_t	xs_type;
115 	uint64_t	xs_sectors;
117 	uint_t		xs_sec_size;
119 	xendev_ring_t	*xs_ring;
121 	ddi_acc_handle_t xs_ring_hdl;
122 	ldi_ident_t	xs_ldi_li;
146 	/* head of free list of xdb_request_t */  argument
148 	/* pre-allocated xdb_request_t pool */  argument
149 	xdb_request_t	*xs_req;  argument
150 	kstat_t		*xs_kstats;
151 	uint64_t	xs_stat_req_reads;
152 	uint64_t	xs_stat_req_writes;
153 	uint64_t	xs_stat_req_barriers;
154 	uint64_t	xs_stat_req_flushes;
155 	enum blkif_protocol xs_blk_protocol;
156 	size_t		xs_nentry;
157 	size_t		xs_entrysize;
160 	boolean_t	xs_hp_connected;	/* hot plug scripts have run */
161 	boolean_t	xs_fe_initialised;	/* frontend is initialized */
162 	char			*xs_lofi_path;
163 	char			*xs_params_path;
164 	struct xenbus_watch	*xs_watch_params;
165 	struct xenbus_watch	*xs_watch_media_req;
166 	ddi_taskq_t		*xs_watch_taskq;
167 	int			xs_watch_taskq_count;
170 	boolean_t	xs_if_connected;	/* connected to frontend */
173 	boolean_t	xs_send_buf;
176 	uint64_t *page_addrs; /* for debug aid */