Re: Intel X520 looses ethtool flow-type rule the moment a BPF / XDP program is loaded

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On Fri, Jun 5, 2020 at 2:05 PM Gaul, Maximilian <maximilian.gaul@xxxxxx> wrote:
>
> > Max,
> >
> > This is unfortunately a known issue with this older NIC. The newer
> > Intel NICs such as i40e (Fortville) and ice (Columbiaville) work as
> > you would expect. They do remember filter settings after enabling XDP.
> >
> > /Magnus
> >
>
> Thank you for your reply Magnus.
>
> That is unfortunate but looks like I am not able to change anything about it.
>
> Do you know if there are other problems with AF_XDP and that NIC?
>
> For example, I am adding a multicast address membership to a generic Linux socket and then loading a BPF / XDP program.
>
> After loading the BPF program I no longer receive any packets (tcpdump -i eth5).

I do not use this card in my AF_XDP lab setup, so unforuately I do not
know. I have included some persons from the networking division at
Intel. They might know of a "known issues" page or somewhere where you
can bug report this.

/Magnus

> Thank you
>
> Max



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