| 1 | #ifndef _IF_ETHER_H
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| 2 | #define _IF_ETHER_H
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| 3 |
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| 4 | /*
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| 5 | I'm moving towards the defined names in linux/if_ether.h for clarity.
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| 6 | The confusion between 60/64 and 1514/1518 arose because the NS8390
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| 7 | counts the 4 byte frame checksum in the incoming packet, but not
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| 8 | in the outgoing packet. 60/1514 are the correct numbers for most
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| 9 | if not all of the other NIC controllers.
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| 10 | */
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| 11 |
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| 12 | #define ETH_ALEN 6 /* Size of Ethernet address */
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| 13 | #define ETH_HLEN 14 /* Size of ethernet header */
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| 14 | #define ETH_ZLEN 60 /* Minimum packet */
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| 15 | #define ETH_FRAME_LEN 1514 /* Maximum packet */
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| 16 | #define ETH_DATA_ALIGN 2 /* Amount needed to align the data after an ethernet header */
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| 17 | #ifndef ETH_MAX_MTU
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| 18 | #define ETH_MAX_MTU (ETH_FRAME_LEN-ETH_HLEN)
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| 19 | #endif
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| 20 |
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| 21 | #define ETH_P_IP 0x0800 /* Internet Protocl Packet */
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| 22 | #define ETH_P_ARP 0x0806 /* Address Resolution Protocol */
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| 23 | #define ETH_P_RARP 0x8035 /* Reverse Address resolution Protocol */
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| 24 | #define ETH_P_IPV6 0x86DD /* IPv6 over blueblook */
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| 25 | #define ETH_P_SLOW 0x8809 /* Ethernet slow protocols */
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| 26 |
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| 27 | #endif /* _IF_ETHER_H */
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