Messages in this thread | | | Date | Wed, 15 Aug 2018 21:05:18 -0700 | From | Alexei Starovoitov <> | Subject | Re: [RFC PATCH net-next V2 0/6] XDP rx handler |
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On Thu, Aug 16, 2018 at 11:34:20AM +0800, Jason Wang wrote: > > Nothing about the topology is hard coded. The idea is to mimic a > > hardware pipeline and acknowledging that a port device can have an > > arbitrary layers stacked on it - multiple vlan devices, bonds, macvlans, etc > > I may miss something but BPF forbids loop. Without a loop how can we make > sure all stacked devices is enumerated correctly without knowing the > topology in advance?
not following. why do you need a loop to implement macvlan as an xdp prog? if loop is needed, such algorithm is not going to scale whether it's implemented as bpf program or as in-kernel c code.
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