vlan.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* vlan.h header for common (non-media specific) VLAN declarations.
*/
#ifndef _SYS_VLAN_H
#define _SYS_VLAN_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#define VLAN_TAGSZ 4
#define VLAN_TPID 0x8100u
#define VLAN_ID_MASK 0x0fffu
#define VLAN_ID_SIZE 12
#define VLAN_ID_SHIFT 0
#define VLAN_CFI_MASK 0x0001u
#define VLAN_CFI_SIZE 1
#define VLAN_CFI_SHIFT (VLAN_ID_SHIFT + VLAN_ID_SIZE)
#define VLAN_PRI_MASK 0x0007u
#define VLAN_PRI_SIZE 3
#define VLAN_PRI_SHIFT (VLAN_CFI_SHIFT + VLAN_CFI_SIZE)
#define VLAN_ID_NONE 0
#define VLAN_ID_MIN 1
#define VLAN_ID_MAX 4094
#define VLAN_TCI(pri, cfi, vid) \
(((pri) << VLAN_PRI_SHIFT) | \
((cfi) << VLAN_CFI_SHIFT) | \
((vid) << VLAN_ID_SHIFT))
/*
* Deconstruct a VTAG ...
*/
#define VLAN_PRI(tci) (((tci) >> VLAN_PRI_SHIFT) & VLAN_PRI_MASK)
#define VLAN_CFI(tci) (((tci) >> VLAN_CFI_SHIFT) & VLAN_CFI_MASK)
#define VLAN_ID(tci) (((tci) >> VLAN_ID_SHIFT) & VLAN_ID_MASK)
#ifdef __cplusplus
}
#endif
#endif /* _SYS_VLAN_H */