Information

Enhanced Three-Speed Ethernet Controllers
MPC8308 PowerQUICC II Pro Processor Reference Manual, Rev. 1
16-146 Freescale Semiconductor
• IPv4 support
— IPv4 source and destination addresses
— 8-bit IPv4 type of service
— IP layer 4 protocol / next header support
–IPV4
– IPV4 Fragment. Parser stops after a fragment is found
–TCP/UDP
• IPv6 support
— The first 4 bytes of the IPv6 source address extraction
— The first 4 bytes of the IPv6 destination address extraction
— IPv6 source address hash for pseudo header calculation
— IPv6 destination address hash for pseudo header calculation
— 8-bit IPv6 traffic class field extraction
— Payload length field extraction
— IP layer 4 protocol/next header support
–IPV6
– IPV6 fragment. Parser stops after a fragment is found
– IPV6 route
– IPV6 hop/destination
–TCP/UDP
• L4 (TCP/UDP) support
— Extraction of 16-bit source port number extraction
— Extraction of 16-bit destination port number extraction
— TCP checksum calculation (including pseudo header)
— UDP checksum calculation if the checksum field is not zero (including pseudo header)
16.6.4.2 Receive Queue Filer
The receive queue filer receives protocol header properties extracted from the incoming frame by the
eTSEC frame parse engine. A property is defined to be a field extracted from a packet header, such as a
TCP port number or VLAN identifier. As soon as the last identifiable header has been recognized, the filer
commences searching the receive queue filer table, comparing properties in the table against properties
extracted from the frame. This table is illustrated in Figure 16-125. Software populates the table with
property values, stored to the RQPROP field, and indicates how to match and interpret the properties by