drctl_impl.h revision 2309:a4369449abc5 
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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _SYS_DRCTL_IMPL_H
28#define	_SYS_DRCTL_IMPL_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#ifdef	__cplusplus
33extern "C" {
34#endif
35
36#define	DRCTL_IOC_IMPL	('I' << 8)
37
38/*
39 * The communication with the backend should be decoupled from the
40 * rest of the drctl module.  Currently, the backend lives in
41 * userland and this module communicates with it via a door upcall.
42 * In the future the backend may be kernel resident.  For this
43 * reason the interface is placed in a separate "impl" source
44 * module and can be easily replaced.
45 */
46#define	DRCTL_IOCTL_CONNECT_SERVER (DRCTL_IOC_IMPL | 1)
47
48typedef struct drctl_setup {
49	uint_t did;
50} drctl_setup_t;
51
52extern void i_drctl_init(void);
53extern void i_drctl_fini(void);
54extern int i_drctl_ioctl(int, intptr_t);
55extern int i_drctl_send(void *, size_t, void **, size_t *);
56
57#ifdef	__cplusplus
58}
59#endif
60
61#endif	/* _SYS_DRCTL_IMPL_H */
62