xref: /titanic_52/usr/src/uts/common/sys/dktp/bbh.h (revision 7f0b8309074a5d8e9f9d8ffe7aad7bb0b1ee6b1f)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7f0b8309SEdward Pilatowicz  * Common Development and Distribution License (the "License").
6*7f0b8309SEdward Pilatowicz  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
217c478bd9Sstevel@tonic-gate /*
22*7f0b8309SEdward Pilatowicz  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
237c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate  */
257c478bd9Sstevel@tonic-gate 
267c478bd9Sstevel@tonic-gate #ifndef _SYS_DKTP_BBH_H
277c478bd9Sstevel@tonic-gate #define	_SYS_DKTP_BBH_H
287c478bd9Sstevel@tonic-gate 
29*7f0b8309SEdward Pilatowicz #include <sys/scsi/scsi_types.h>
307c478bd9Sstevel@tonic-gate 
317c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
327c478bd9Sstevel@tonic-gate extern "C" {
337c478bd9Sstevel@tonic-gate #endif
347c478bd9Sstevel@tonic-gate 
357c478bd9Sstevel@tonic-gate struct	bbh_cookie {
367c478bd9Sstevel@tonic-gate 	lldaddr_t	_ck_sector;	/* sector # on device (union) 	*/
377c478bd9Sstevel@tonic-gate 	long		ck_seclen;	/* number of contiguous sec	*/
387c478bd9Sstevel@tonic-gate };
397c478bd9Sstevel@tonic-gate #define	ck_lsector	_ck_sector._f
407c478bd9Sstevel@tonic-gate #define	ck_sector	_ck_sector._p._l
417c478bd9Sstevel@tonic-gate typedef	struct  bbh_cookie *bbh_cookie_t;
427c478bd9Sstevel@tonic-gate 
437c478bd9Sstevel@tonic-gate struct	bbh_handle {
447c478bd9Sstevel@tonic-gate 	int	h_totck;
457c478bd9Sstevel@tonic-gate 	int	h_idx;
467c478bd9Sstevel@tonic-gate 	struct	bbh_cookie *h_cktab;
477c478bd9Sstevel@tonic-gate };
487c478bd9Sstevel@tonic-gate 
497c478bd9Sstevel@tonic-gate struct	bbh_obj {
507c478bd9Sstevel@tonic-gate 	opaque_t		bbh_data;
517c478bd9Sstevel@tonic-gate 	struct bbh_objops	*bbh_ops;
527c478bd9Sstevel@tonic-gate };
537c478bd9Sstevel@tonic-gate 
547c478bd9Sstevel@tonic-gate struct	bbh_objops {
557c478bd9Sstevel@tonic-gate 	int		(*bbh_init)(opaque_t);
567c478bd9Sstevel@tonic-gate 	int		(*bbh_free)(struct bbh_obj *);
577c478bd9Sstevel@tonic-gate 	opaque_t 	(*bbh_gethandle)(opaque_t, struct buf *);
587c478bd9Sstevel@tonic-gate 	bbh_cookie_t	(*bbh_htoc)(opaque_t, opaque_t);
597c478bd9Sstevel@tonic-gate 	void 		(*bbh_freehandle)(opaque_t, opaque_t);
607c478bd9Sstevel@tonic-gate 	void 		*bbh_resv[2];
617c478bd9Sstevel@tonic-gate };
627c478bd9Sstevel@tonic-gate 
637c478bd9Sstevel@tonic-gate #define	BBH_GETCK_SECTOR(X, ckp) ((ckp)->ck_sector)
647c478bd9Sstevel@tonic-gate #define	BBH_GETCK_SECLEN(X, ckp) ((ckp)->ck_seclen)
657c478bd9Sstevel@tonic-gate 
667c478bd9Sstevel@tonic-gate #define	BBH_INIT(X) (*((struct bbh_obj *)(X))->bbh_ops->bbh_init)\
677c478bd9Sstevel@tonic-gate 	(((struct bbh_obj *)(X))->bbh_data)
687c478bd9Sstevel@tonic-gate #define	BBH_FREE(X) (*((struct bbh_obj *)(X))->bbh_ops->bbh_free) ((X))
697c478bd9Sstevel@tonic-gate #define	BBH_GETHANDLE(X, bp) (*((struct bbh_obj *)(X))->bbh_ops->bbh_gethandle)\
707c478bd9Sstevel@tonic-gate 	(((struct bbh_obj *)(X))->bbh_data, (bp))
717c478bd9Sstevel@tonic-gate #define	BBH_HTOC(X, handle) (*((struct bbh_obj *)(X))->bbh_ops->bbh_htoc) \
727c478bd9Sstevel@tonic-gate 	(((struct bbh_obj *)(X))->bbh_data, (handle))
737c478bd9Sstevel@tonic-gate #define	BBH_FREEHANDLE(X, handle) \
747c478bd9Sstevel@tonic-gate 	(*((struct bbh_obj *)(X))->bbh_ops->bbh_freehandle) \
757c478bd9Sstevel@tonic-gate 	(((struct bbh_obj *)(X))->bbh_data, (handle))
767c478bd9Sstevel@tonic-gate 
777c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
787c478bd9Sstevel@tonic-gate }
797c478bd9Sstevel@tonic-gate #endif
807c478bd9Sstevel@tonic-gate 
817c478bd9Sstevel@tonic-gate #endif	/* _SYS_DKTP_BBH_H */
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