On 11/26/19 4:07 AM, Prashant Bhole wrote: > run offloaded XDP program as soon as packet is removed from the ptr > ring. Since this is XDP in Tx path, the traditional handling of > XDP actions XDP_TX/REDIRECT isn't valid. For this reason we call > do_xdp_generic_core instead of do_xdp_generic. do_xdp_generic_core > just runs the program and leaves the action handling to us.
What happens if an offloaded program returns XDP_REDIRECT? Below you just drop the packet which is going to be a bad user experience. A better user experience is to detect XDP return codes a program uses, catch those that are not supported for this use case and fail the install of the program.
