xref: /illumos-gate/usr/src/uts/common/sys/dktp/flowctrl.h (revision 2d6eb4a5)
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
57c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate  * with the License.
87c478bd9Sstevel@tonic-gate  *
97c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate  * and limitations under the License.
137c478bd9Sstevel@tonic-gate  *
147c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate  *
207c478bd9Sstevel@tonic-gate  * CDDL HEADER END
217c478bd9Sstevel@tonic-gate  */
227c478bd9Sstevel@tonic-gate /*
23*43369e13Slclee  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
277c478bd9Sstevel@tonic-gate #ifndef _SYS_DKTP_FLOWCTRL_H
287c478bd9Sstevel@tonic-gate #define	_SYS_DKTP_FLOWCTRL_H
297c478bd9Sstevel@tonic-gate 
307c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
317c478bd9Sstevel@tonic-gate extern "C" {
327c478bd9Sstevel@tonic-gate #endif
337c478bd9Sstevel@tonic-gate 
347c478bd9Sstevel@tonic-gate struct	flc_obj {
357c478bd9Sstevel@tonic-gate 	opaque_t		flc_data;
367c478bd9Sstevel@tonic-gate 	struct flc_objops	*flc_ops;
377c478bd9Sstevel@tonic-gate };
387c478bd9Sstevel@tonic-gate 
397c478bd9Sstevel@tonic-gate struct	flc_objops {
407c478bd9Sstevel@tonic-gate 	int	(*flc_init)(opaque_t, opaque_t, opaque_t, void *);
417c478bd9Sstevel@tonic-gate 	int	(*flc_free)(struct flc_obj *);
427c478bd9Sstevel@tonic-gate 	int	(*flc_enque)(opaque_t, struct buf *);
437c478bd9Sstevel@tonic-gate 	int	(*flc_deque)(opaque_t, struct buf *);
447c478bd9Sstevel@tonic-gate 	int	(*flc_start_kstat)(opaque_t, char *, int);
457c478bd9Sstevel@tonic-gate 	int	(*flc_stop_kstat)(opaque_t);
467c478bd9Sstevel@tonic-gate 	void	*flc_resv[2];
477c478bd9Sstevel@tonic-gate };
487c478bd9Sstevel@tonic-gate 
49*43369e13Slclee struct flc_obj *dsngl_create();
50*43369e13Slclee struct flc_obj *dmult_create();
51*43369e13Slclee struct flc_obj *duplx_create();
52*43369e13Slclee struct flc_obj *adapt_create();
53*43369e13Slclee 
547c478bd9Sstevel@tonic-gate #define	FLC_INIT(X, tgcomobjp, queobjp, lkarg) \
557c478bd9Sstevel@tonic-gate 	(*((struct flc_obj *)(X))->flc_ops->flc_init) \
567c478bd9Sstevel@tonic-gate 	(((struct flc_obj *)(X))->flc_data, (tgcomobjp), (queobjp), (lkarg))
577c478bd9Sstevel@tonic-gate #define	FLC_FREE(X) (*((struct flc_obj *)(X))->flc_ops->flc_free) ((X))
587c478bd9Sstevel@tonic-gate #define	FLC_ENQUE(X, bp) (*((struct flc_obj *)(X))->flc_ops->flc_enque) \
597c478bd9Sstevel@tonic-gate 	(((struct flc_obj *)(X))->flc_data, (bp))
607c478bd9Sstevel@tonic-gate #define	FLC_DEQUE(X, bp) (*((struct flc_obj *)(X))->flc_ops->flc_deque) \
617c478bd9Sstevel@tonic-gate 	(((struct flc_obj *)(X))->flc_data, (bp))
627c478bd9Sstevel@tonic-gate #define	FLC_START_KSTAT(X, devtype, instance) \
637c478bd9Sstevel@tonic-gate 	(*((struct flc_obj *)(X))->flc_ops->flc_start_kstat)\
647c478bd9Sstevel@tonic-gate 	(((struct flc_obj *)(X))->flc_data, (devtype), (instance))
657c478bd9Sstevel@tonic-gate #define	FLC_STOP_KSTAT(X) (*((struct flc_obj *)(X))->flc_ops->flc_stop_kstat) \
667c478bd9Sstevel@tonic-gate 	(((struct flc_obj *)(X))->flc_data)
677c478bd9Sstevel@tonic-gate 
687c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
697c478bd9Sstevel@tonic-gate }
707c478bd9Sstevel@tonic-gate #endif
717c478bd9Sstevel@tonic-gate 
727c478bd9Sstevel@tonic-gate #endif	/* _SYS_DKTP_FLOWCTRL_H */
73