netdev - Re: [RFC net-next 11/14] tun: run XDP program in tx path

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Message-ID: <3e7bbc36-256f-757b-d4e0-aeaae7009d6c@gmail.com>
Date:   Fri, 20 Dec 2019 09:11:55 -0700
From:   David Ahern <dsahern@...il.com>
To:     Prashant Bhole <prashantbhole.linux@...il.com>,
        Jason Wang <jasowang@...hat.com>,
        Toke Høiland-Jørgensen 
        <toke@...hat.com>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Jesper Dangaard Brouer <jbrouer@...hat.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        "Michael S . Tsirkin" <mst@...hat.com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        John Fastabend <john.fastabend@...il.com>,
        Toshiaki Makita <toshiaki.makita1@...il.com>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        Andrii Nakryiko <andriin@...com>, netdev@...r.kernel.org,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>
Subject: Re: [RFC net-next 11/14] tun: run XDP program in tx path

On 12/19/19 9:46 PM, Prashant Bhole wrote:
> 
> "It can improve container networking where veth pair links the host and
> the container. Host can set ACL by setting tx path XDP to the veth
> iface."

Just to be clear, this is the use case of interest to me, not the
offloading. I want programs managed by and viewable by the host OS and
not necessarily viewable by the guest OS or container programs.