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 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * vlan.h header for common (non-media specific) VLAN declarations. 28 */ 29 30 #ifndef _SYS_VLAN_H 31 #define _SYS_VLAN_H 32 33 #pragma ident "%Z%%M% %I% %E% SMI" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 #define VLAN_TAGSZ 4 40 41 #define VLAN_ID_MASK 0x0fffu 42 #define VLAN_ID_SIZE 12 43 #define VLAN_ID_SHIFT 0 44 45 #define VLAN_CFI_MASK 0x0001u 46 #define VLAN_CFI_SIZE 1 47 #define VLAN_CFI_SHIFT (VLAN_ID_SHIFT + VLAN_ID_SIZE) 48 49 #define VLAN_PRI_MASK 0x0007u 50 #define VLAN_PRI_SIZE 3 51 #define VLAN_PRI_SHIFT (VLAN_CFI_SHIFT + VLAN_CFI_SIZE) 52 53 #define VLAN_ID_NONE 0 54 #define VLAN_ID_MIN 1 55 #define VLAN_ID_MAX 4094 56 57 #define VLAN_TCI(pri, cfi, vid) \ 58 (((pri) << VLAN_PRI_SHIFT) | \ 59 ((cfi) << VLAN_CFI_SHIFT) | \ 60 ((vid) << VLAN_ID_SHIFT)) 61 62 /* 63 * Deconstruct a VTAG ... 64 */ 65 #define VLAN_PRI(tci) (((tci) >> VLAN_PRI_SHIFT) & VLAN_PRI_MASK) 66 #define VLAN_CFI(tci) (((tci) >> VLAN_CFI_SHIFT) & VLAN_CFI_MASK) 67 #define VLAN_ID(tci) (((tci) >> VLAN_ID_SHIFT) & VLAN_ID_MASK) 68 69 #define VLAN_BAND_MAP 32 70 71 #define VLAN_MBLKPRI(mp) \ 72 ((((mp)->b_band) / VLAN_BAND_MAP) > 7 ? 0 : \ 73 (((mp)->b_band) / VLAN_BAND_MAP)) 74 75 #ifdef __cplusplus 76 } 77 #endif 78 79 #endif /* _SYS_VLAN_H */ 80