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