Differential D19495 Diff 63432 usr.sbin/bhyve/block_if.h

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usr.sbin/bhyve/block_if.h

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	*/			*/

	#ifndef _BLOCK_IF_H_			#ifndef _BLOCK_IF_H_
	#define _BLOCK_IF_H_			#define _BLOCK_IF_H_

	#include <sys/uio.h>			#include <sys/uio.h>
	#include <sys/unistd.h>			#include <sys/unistd.h>

				struct vm_snapshot_meta;


	/*			/*
	* BLOCKIF_IOV_MAX is the maximum number of scatter/gather entries in			* BLOCKIF_IOV_MAX is the maximum number of scatter/gather entries in
	* a single request. BLOCKIF_RING_MAX is the maxmimum number of			* a single request. BLOCKIF_RING_MAX is the maxmimum number of
	* pending requests that can be queued.			* pending requests that can be queued.
	*/			*/
	#define BLOCKIF_IOV_MAX 128 /* not practical to be IOV_MAX */			#define BLOCKIF_IOV_MAX 128 /* not practical to be IOV_MAX */
	#define BLOCKIF_RING_MAX 128			#define BLOCKIF_RING_MAX 128

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	int blockif_is_ro(struct blockif_ctxt *bc);			int blockif_is_ro(struct blockif_ctxt *bc);
	int blockif_candelete(struct blockif_ctxt *bc);			int blockif_candelete(struct blockif_ctxt *bc);
	int blockif_read(struct blockif_ctxt bc, struct blockif_req breq);			int blockif_read(struct blockif_ctxt bc, struct blockif_req breq);
	int blockif_write(struct blockif_ctxt bc, struct blockif_req breq);			int blockif_write(struct blockif_ctxt bc, struct blockif_req breq);
	int blockif_flush(struct blockif_ctxt bc, struct blockif_req breq);			int blockif_flush(struct blockif_ctxt bc, struct blockif_req breq);
	int blockif_delete(struct blockif_ctxt bc, struct blockif_req breq);			int blockif_delete(struct blockif_ctxt bc, struct blockif_req breq);
	int blockif_cancel(struct blockif_ctxt bc, struct blockif_req breq);			int blockif_cancel(struct blockif_ctxt bc, struct blockif_req breq);
	int blockif_close(struct blockif_ctxt *bc);			int blockif_close(struct blockif_ctxt *bc);
				#ifdef BHYVE_SNAPSHOT
				void blockif_pause(struct blockif_ctxt *bc);
				void blockif_resume(struct blockif_ctxt *bc);
				int blockif_snapshot_req(struct blockif_req *br,
				struct vm_snapshot_meta *meta);
				int blockif_snapshot(struct blockif_ctxt *bc,
				struct vm_snapshot_meta *meta);
				#endif

	#endif /* _BLOCK_IF_H_ */			#endif /* _BLOCK_IF_H_ */