Maciej Fijalkowski wrote: > In order to prepare xdpxceiver for physical device testing, let us > introduce default Rx pkt stream. Reason for doing it is that physical > device testing will use a UMEM with a doubled size where half of it will > be used by Tx and other half by Rx. This means that pkt addresses will > differ for Tx and Rx streams. Rx thread will initialize the > xsk_umem_info::base_addr that is added here so that pkt_set(), when > working on Rx UMEM will add this offset and second half of UMEM space > will be used. Note that currently base_addr is 0 on both sides. Future > commit will do the mentioned initialization. > > Previously, veth based testing worked on separate UMEMs, so single > default stream was fine. > > Acked-by: Magnus Karlsson <magnus.karlsson@xxxxxxxxx> > Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@xxxxxxxxx> > --- Just curious why can't we make veth use a single umem with double size? Would be nice to have a single test setup. Why choose two vs a single size. Thanks.
