Re: xdpsock ... -N -z and AF_XDP XDP_ZEROCOPY not working: RESOLVED!

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On Wed, 29 Jan 2020 21:41:57 -0700
David Ahern <dsahern@xxxxxxxxx> wrote:

> On 1/29/20 6:02 PM, Cameron Elliott wrote:
> > With this command:
> > git clone git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
> > More info: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/
> > 
> > I built the kernel using these directions:
> > https://wiki.ubuntu.com/KernelTeam/GitKernelBuild
> > 
> > And after rebooting and running on the 5.5 bpf-next kernel, -z and
> > XDP_ZEROCOPY were working fine!  
> 
> since this is literally bleeding edge, is there a wiki/doc/other for
> kernel versions and supported features? Something similar to what MLX
> does for switchdev [1] would be really helpful.
> 
> [1] https://github.com/Mellanox/mlxsw/wiki

The IOvisor BCC project tries to keep track of kernel version and BPF +
XDP features, here[2]:

[2] https://github.com/iovisor/bcc/blob/master/docs/kernel-versions.md 

-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Principal Kernel Engineer at Red Hat
  LinkedIn: http://www.linkedin.com/in/brouer




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