Checksum offload header fields are in big endian format.
+Packet format::
+
Bit 0 - 6 7 8-15 16-31
Function Header Type Next Header Checksum Valid Reserved
Header Type is to indicate the type of header, this usually is set to CHECKSUM
Header types
-= ==========================================
+
+= ===============
0 Reserved
1 Reserved
2 checksum header
+= ===============
Checksum Valid is to indicate whether the header checksum is valid. Value of 1
implies that checksum is calculated on this packet and is valid, value of 0
packets and either ACK the MAP command or deliver the IP packet to the
network stack as needed
-MAP header|IP Packet|Optional padding|MAP header|IP Packet|Optional padding....
+Packet format::
+
+ MAP header|IP Packet|Optional padding|MAP header|IP Packet|Optional padding....
-MAP header|IP Packet|Optional padding|MAP header|Command Packet|Optional pad...
+ MAP header|IP Packet|Optional padding|MAP header|Command Packet|Optional pad...
3. Userspace configuration
==========================