Björn Töpel <bjorn.topel@xxxxxxxxx> writes: > On Thu, 12 Mar 2020 at 10:17, Gaul, Maximilian <maximilian.gaul@xxxxxx> wrote: >> > [...] >> >> Thank you so much Björn! >> >> just to wrap things up: >> >> - if I want to distribute packet processing from a single RX-Queue to >> multiple sockets I have to use shared umem because it is not possible >> to bind multiple af-xdp sockets onto the same RX-Queue > > Correct! And you need a tailored XDP program that spreads over the > shared umem sockets! Could we lift this restriction? Not with zero-copy, obviously, but if there's a copy involved it seems it should be possible to support several sockets on the same RXQ? That would make it possible to use XDP as a per-CPU load balancer for a single RXQ, like we can do with cpumap for packets hitting the stack today? -Toke
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