[dpdk-dev] 82599 Checksum offloading for UDP

Benson, Bryan bmbenson at amazon.com
Thu Nov 21 19:06:47 CET 2013


All,
We are using RX checksum offloading for L3 and L4 on the 82599 NIC. One odd behavior we have noticed is that UDP packets with a zero UDP checksum are being marked as invalid.  The UDP checksum field for IPv4 + UDP is optional.

Is there a way to toggle the behavior?  I have been reviewing the DataSheet and have not seen a way so far.

Thank you,
Bryan Benson
Amazon Web Services


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