xref: /illumos-gate/usr/src/uts/sun4v/sys/drctl_impl.h (revision 1d4b38e0)
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
33 extern "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 
48 typedef struct drctl_setup {
49 	uint_t did;
50 } drctl_setup_t;
51 
52 extern void i_drctl_init(void);
53 extern void i_drctl_fini(void);
54 extern int i_drctl_ioctl(int, intptr_t);
55 extern 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