Re: Max MTU with XDP

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Srivats P <pstavirs@xxxxxxxxx> writes:

> Hi,
> I'm aware that different drivers have different max MTU that they can
> support with XDP.
> Is there a way to programmatically retrieve what is the max MTU
> supported on a particular driver/interface with XDP/AF_XDP?
> Or is setting a MTU value and trying to attach a eBPF program in a
> binary search fashion wrt to MTU value between 1500 and 4096 is the
> only way?

Yup, currently it is, unfortunately. Querying this may eventually be
possible, along with which features an interface supports etc...


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