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	struct xbd_command {			struct xbd_command {
	TAILQ_ENTRY(xbd_command) cm_link;			TAILQ_ENTRY(xbd_command) cm_link;
	struct xbd_softc *cm_sc;			struct xbd_softc *cm_sc;
	xbdc_flag_t cm_flags;			xbdc_flag_t cm_flags;
	bus_dmamap_t cm_map;			bus_dmamap_t cm_map;
	uint64_t cm_id;			uint64_t cm_id;
	grant_ref_t *cm_sg_refs;			grant_ref_t *cm_sg_refs;
	struct bio *cm_bp;			struct bio *cm_bp;
	grant_ref_t cm_gref_head;
	void *cm_data;			void *cm_data;
	size_t cm_datalen;			size_t cm_datalen;
	u_int cm_nseg;			u_int cm_nseg;
	int cm_operation;			int cm_operation;
	blkif_sector_t cm_sector_number;			blkif_sector_t cm_sector_number;
	int cm_status;			int cm_status;
	xbd_cbcf_t *cm_complete;			xbd_cbcf_t *cm_complete;
	void *cm_indirectionpages;			void *cm_indirectionpages;
	grant_ref_t cm_indirectionrefs[BLKIF_MAX_INDIRECT_PAGES_PER_REQUEST];			grant_ref_t *cm_indirectionrefs;
				bus_dmamap_t cm_indirectionmap;
	};			};

	typedef enum {			typedef enum {
	XBD_Q_FREE,			XBD_Q_FREE,
	XBD_Q_READY,			XBD_Q_READY,
	XBD_Q_BUSY,			XBD_Q_BUSY,
	XBD_Q_COMPLETE,			XBD_Q_COMPLETE,
	XBD_Q_BIO,			XBD_Q_BIO,
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