1 /******************************************************************************
2  *
3  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of version 2 of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12  * more details.
13  *
14  * You should have received a copy of the GNU General Public License along with
15  * this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17  *
18  *
19  ******************************************************************************/
20 #ifndef __INC_ETHERNET_H
21 #define __INC_ETHERNET_H
22 
23 #define ETHERNET_ADDRESS_LENGTH		6	/*!< Ethernet Address Length*/
24 #define ETHERNET_HEADER_SIZE		14	/*!< Ethernet Header Length*/
25 #define LLC_HEADER_SIZE			6	/*!< LLC Header Length*/
26 #define TYPE_LENGTH_FIELD_SIZE		2	/*!< Type/Length Size*/
27 #define MINIMUM_ETHERNET_PACKET_SIZE	60	/*!< Min Ethernet Packet Size*/
28 #define MAXIMUM_ETHERNET_PACKET_SIZE	1514	/*!< Max Ethernet Packet Size*/
29 
30 /*!< Is Multicast Address? */
31 #define RT_ETH_IS_MULTICAST(_pAddr)	((((u8 *)(_pAddr))[0]&0x01) != 0)
32 /*!< Is Broadcast Address? */
33 #define RT_ETH_IS_BROADCAST(_pAddr)	(				\
34 			((u8 *)(_pAddr))[0] == 0xff	&&		\
35 			((u8 *)(_pAddr))[1] == 0xff	&&		\
36 			((u8 *)(_pAddr))[2] == 0xff	&&		\
37 			((u8 *)(_pAddr))[3] == 0xff	&&		\
38 			((u8 *)(_pAddr))[4] == 0xff	&&		\
39 			((u8 *)(_pAddr))[5] == 0xff)
40 
41 #endif /* #ifndef __INC_ETHERNET_H */
42 
43