vio_common.h revision 1991:f29baf5bf770 
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_VIO_COMMON_H
28#define	_SYS_VIO_COMMON_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#ifdef __cplusplus
33extern "C" {
34#endif
35
36
37/*
38 *  Common header for VIO descriptor ring entries
39 */
40typedef struct vio_dring_entry_hdr {
41	uint8_t		dstate;		/* Current state of Dring entry */
42	uint8_t		ack:1;		/* 1 => receiver must ACK when DONE */
43
44	/*
45	 * Padding.
46	 */
47	uint16_t	resv[3];
48} vio_dring_entry_hdr_t;
49
50
51#ifdef __cplusplus
52}
53#endif
54
55#endif	/* _SYS_VIO_COMMON_H */
56