1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _SYS_DKTP_FLOWCTRL_H
28#define	_SYS_DKTP_FLOWCTRL_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#ifdef	__cplusplus
33extern "C" {
34#endif
35
36struct	flc_obj {
37	opaque_t		flc_data;
38	struct flc_objops	*flc_ops;
39};
40
41struct	flc_objops {
42	int	(*flc_init)(opaque_t, opaque_t, opaque_t, void *);
43	int	(*flc_free)(struct flc_obj *);
44	int	(*flc_enque)(opaque_t, struct buf *);
45	int	(*flc_deque)(opaque_t, struct buf *);
46	int	(*flc_start_kstat)(opaque_t, char *, int);
47	int	(*flc_stop_kstat)(opaque_t);
48	void	*flc_resv[2];
49};
50
51struct flc_obj *dsngl_create();
52struct flc_obj *dmult_create();
53struct flc_obj *duplx_create();
54struct flc_obj *adapt_create();
55
56#define	FLC_INIT(X, tgcomobjp, queobjp, lkarg) \
57	(*((struct flc_obj *)(X))->flc_ops->flc_init) \
58	(((struct flc_obj *)(X))->flc_data, (tgcomobjp), (queobjp), (lkarg))
59#define	FLC_FREE(X) (*((struct flc_obj *)(X))->flc_ops->flc_free) ((X))
60#define	FLC_ENQUE(X, bp) (*((struct flc_obj *)(X))->flc_ops->flc_enque) \
61	(((struct flc_obj *)(X))->flc_data, (bp))
62#define	FLC_DEQUE(X, bp) (*((struct flc_obj *)(X))->flc_ops->flc_deque) \
63	(((struct flc_obj *)(X))->flc_data, (bp))
64#define	FLC_START_KSTAT(X, devtype, instance) \
65	(*((struct flc_obj *)(X))->flc_ops->flc_start_kstat)\
66	(((struct flc_obj *)(X))->flc_data, (devtype), (instance))
67#define	FLC_STOP_KSTAT(X) (*((struct flc_obj *)(X))->flc_ops->flc_stop_kstat) \
68	(((struct flc_obj *)(X))->flc_data)
69
70#ifdef	__cplusplus
71}
72#endif
73
74#endif	/* _SYS_DKTP_FLOWCTRL_H */
75