[Intel-wired-lan] [net-next PATCH v3 2/3] e1000: add initial XDP support

[Eric Dumazet]

On Tue, 2016-09-13 at 10:13 -0700, Alexei Starovoitov wrote:

> I'm afraid the point 'only for debugging' still didn't make it across.
> xdp+e1k is for development (and debugging) of xdp-type of bpf
> programs and _not_ for debugging of xdp itself, kernel or anything else.
> The e1k provided interfaces and behavior needs to match exactly
> what real hw nics (like mlx4, mlx5, igxbe, i40e) will do.
> Doing special hacks are not acceptable. Therefore your
> 'proposed fix' misses the mark, since:
> 1. ignoring bql/qdisc is not a bug, but the requirement
> 2. such 'fix' goes against the goal above since behaviors will be
> different and xdp developer won't be able to build something like
> xdp loadbalancer in the kvm.
> 


Is e1k the only way a VM can receive and send packets ?

Instead of adding more cruft to a legacy driver, risking breaking real
old machines, I am sure we can find modern alternative.