>> As to HW TX checksum offload, do you have special requirement for >> implementing TSO?
> Yes. TSO implies TX TCP and IP checksum offload. Is this a general requirement or something specific to ixgbe/i40e? FWIW, vmxnet3 device does not support tx IP checksum offload but doe support TSO. In that case, we cannot leave IP checksum field as 0 (the correct checksum needs to be filled in the header) before passing it the the NIC when TSO is enabled. Yong
