Subject: Re: [PATCH v16 bpf-next 09/20] bpf: introduce BPF_F_XDP_MB flag in prog_flags loading the ebpf program

From: Toke Høiland-Jørgensen <[email-masked]>
Date: Fri, 15 Oct 2021 15:22:31 +0200

Lorenzo Bianconi <[email-masked]> writes:

> Introduce BPF_F_XDP_MB and the related field in bpf_prog_aux in order to
> notify the driver the loaded program support xdp multi-buffer.

We should also add some restrictions in the BPF core. In particular,
tail call, cpumap and devmap maps should not be able to mix multi-buf
and non-multibuf programs.

-Toke