xref: /onnv-gate/usr/src/uts/common/sys/vlan.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate /*
28*0Sstevel@tonic-gate  * vlan.h header for common (non-media specific) VLAN declarations.
29*0Sstevel@tonic-gate  */
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate #ifndef	_SYS_VLAN_H
32*0Sstevel@tonic-gate #define	_SYS_VLAN_H
33*0Sstevel@tonic-gate 
34*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate #ifdef	__cplusplus
37*0Sstevel@tonic-gate extern "C" {
38*0Sstevel@tonic-gate #endif
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate #define	VLAN_TAGSZ	4
41*0Sstevel@tonic-gate 
42*0Sstevel@tonic-gate #define	VLAN_TPID	0x8100u
43*0Sstevel@tonic-gate 
44*0Sstevel@tonic-gate #define	VLAN_ID_MASK	0x0fffu
45*0Sstevel@tonic-gate #define	VLAN_ID_SIZE	12
46*0Sstevel@tonic-gate #define	VLAN_ID_SHIFT	0
47*0Sstevel@tonic-gate 
48*0Sstevel@tonic-gate #define	VLAN_CFI_MASK	0x0001u
49*0Sstevel@tonic-gate #define	VLAN_CFI_SIZE	1
50*0Sstevel@tonic-gate #define	VLAN_CFI_SHIFT	(VLAN_ID_SHIFT + VLAN_ID_SIZE)
51*0Sstevel@tonic-gate 
52*0Sstevel@tonic-gate #define	VLAN_PRI_MASK	0x0007u
53*0Sstevel@tonic-gate #define	VLAN_PRI_SIZE	3
54*0Sstevel@tonic-gate #define	VLAN_PRI_SHIFT	(VLAN_CFI_SHIFT + VLAN_CFI_SIZE)
55*0Sstevel@tonic-gate 
56*0Sstevel@tonic-gate #define	VLAN_ID_NONE	0
57*0Sstevel@tonic-gate #define	VLAN_ID_MIN	1
58*0Sstevel@tonic-gate #define	VLAN_ID_MAX	4094
59*0Sstevel@tonic-gate 
60*0Sstevel@tonic-gate #define	VLAN_TCI(pri, cfi, vid) \
61*0Sstevel@tonic-gate 	(((pri) << VLAN_PRI_SHIFT) | \
62*0Sstevel@tonic-gate 	((cfi) << VLAN_CFI_SHIFT) | \
63*0Sstevel@tonic-gate 	((vid) << VLAN_ID_SHIFT))
64*0Sstevel@tonic-gate 
65*0Sstevel@tonic-gate /*
66*0Sstevel@tonic-gate  * Deconstruct a VTAG ...
67*0Sstevel@tonic-gate  */
68*0Sstevel@tonic-gate #define	VLAN_PRI(tci)	(((tci) >> VLAN_PRI_SHIFT) & VLAN_PRI_MASK)
69*0Sstevel@tonic-gate #define	VLAN_CFI(tci)	(((tci) >> VLAN_CFI_SHIFT) & VLAN_CFI_MASK)
70*0Sstevel@tonic-gate #define	VLAN_ID(tci)	(((tci) >> VLAN_ID_SHIFT) & VLAN_ID_MASK)
71*0Sstevel@tonic-gate 
72*0Sstevel@tonic-gate #ifdef	__cplusplus
73*0Sstevel@tonic-gate }
74*0Sstevel@tonic-gate #endif
75*0Sstevel@tonic-gate 
76*0Sstevel@tonic-gate #endif	/* _SYS_VLAN_H */
77