16dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt/* 26dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * 802.1Q VLAN protocol definitions 36dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * 438eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt * Copyright (C) 1999-2013, Broadcom Corporation 538eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt * 66dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * Permission to use, copy, modify, and/or distribute this software for any 76dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * purpose with or without fee is hereby granted, provided that the above 86dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * copyright notice and this permission notice appear in all copies. 96dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * 106dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 116dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 126dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 136dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 146dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 156dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 166dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 176dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt * 1838eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt * $Id: vlan.h 382883 2013-02-04 23:26:09Z $ 196dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt */ 206dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 216dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt#ifndef _vlan_h_ 226dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt#define _vlan_h_ 236dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 246dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt#ifndef _TYPEDEFS_H_ 256dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt#include <typedefs.h> 266dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt#endif 276dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 2838eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt/* This marks the start of a packed structure section. */ 296dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt#include <packed_section_start.h> 306dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 3138eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#ifndef VLAN_VID_MASK 3238eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#define VLAN_VID_MASK 0xfff /* low 12 bits are vlan id */ 3338eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#endif 3438eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt 3538eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#define VLAN_CFI_SHIFT 12 /* canonical format indicator bit */ 3638eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#define VLAN_PRI_SHIFT 13 /* user priority */ 3738eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt 3838eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#define VLAN_PRI_MASK 7 /* 3 bits of priority */ 396dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 4038eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#define VLAN_TPID_OFFSET 12 /* offset of tag protocol id field */ 4138eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#define VLAN_TCI_OFFSET 14 /* offset of tag ctrl info field */ 426dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 436dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt#define VLAN_TAG_LEN 4 4438eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#define VLAN_TAG_OFFSET (2 * ETHER_ADDR_LEN) /* offset in Ethernet II packet only */ 456dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 4638eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#define VLAN_TPID 0x8100 /* VLAN ethertype/Tag Protocol ID */ 4738eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt 4838eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidtstruct vlan_header { 4938eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint16 vlan_type; /* 0x8100 */ 5038eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint16 vlan_tag; /* priority, cfi and vid */ 5138eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt}; 526dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 536dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidtstruct ethervlan_header { 546dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt uint8 ether_dhost[ETHER_ADDR_LEN]; 556dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt uint8 ether_shost[ETHER_ADDR_LEN]; 5638eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint16 vlan_type; /* 0x8100 */ 5738eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint16 vlan_tag; /* priority, cfi and vid */ 586dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt uint16 ether_type; 596dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt}; 606dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 6138eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidtstruct dot3_mac_llc_snapvlan_header { 6238eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint8 ether_dhost[ETHER_ADDR_LEN]; /* dest mac */ 6338eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint8 ether_shost[ETHER_ADDR_LEN]; /* src mac */ 6438eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint16 length; /* frame length incl header */ 6538eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint8 dsap; /* always 0xAA */ 6638eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint8 ssap; /* always 0xAA */ 6738eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint8 ctl; /* always 0x03 */ 6838eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint8 oui[3]; /* RFC1042: 0x00 0x00 0x00 6938eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt * Bridge-Tunnel: 0x00 0x00 0xF8 7038eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt */ 7138eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint16 vlan_type; /* 0x8100 */ 7238eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint16 vlan_tag; /* priority, cfi and vid */ 7338eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt uint16 ether_type; /* ethertype */ 7438eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt}; 756dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 7638eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#define ETHERVLAN_HDR_LEN (ETHER_HDR_LEN + VLAN_TAG_LEN) 776dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 786dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 7938eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt/* This marks the end of a packed structure section. */ 806dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt#include <packed_section_end.h> 816dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 826dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt#define ETHERVLAN_MOVE_HDR(d, s) \ 836dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidtdo { \ 846dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt struct ethervlan_header t; \ 856dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt t = *(struct ethervlan_header *)(s); \ 866dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt *(struct ethervlan_header *)(d) = t; \ 876dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt} while (0) 886dbcf2181152a81ab5f3bc5fa765288341a1b7abDmitry Shmidt 8938eaaf5a34502fe465cf8b6ac7a2dfcafa17ba41Dmitry Shmidt#endif /* _vlan_h_ */ 90