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From: Jakub Kicinski <kubakici@wp.pl>
Subject: Re: [PATCH net-next RFC WIP] Patch for XDP support for virtio_net
Date: Fri, 28 Oct 2016 21:42:28 +0100
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Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>,
        John Fastabend <john.fastabend@gmail.com>,
        David Miller <davem@davemloft.net>,
        "Michael S. Tsirkin" <mst@redhat.com>,
        Jesper Dangaard Brouer <brouer@redhat.com>,
        shrijeet@gmail.com, Tom Herbert <tom@herbertland.com>,
        Netdev <netdev@vger.kernel.org>,
        Shrijeet Mukherjee <shm@cumulusnetworks.com>,
        roopa <roopa@cumulusnetworks.com>, nikolay@cumulusnetworks.com
To: Alexander Duyck <alexander.duyck@gmail.com>
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On Fri, 28 Oct 2016 13:35:02 -0700, Alexander Duyck wrote:
> > At the same time XDP doesn't require to use 4k buffer in something like Netronome.
> > If xdp bpf program can be offloaded into HW with 1800 byte buffers, great!  
> 
> So are you saying this is only really meant to be used with a full bpf
> hardware offload then?

I think Alexei just meant to say I don't have to worry about providing
4k buffers when program is offloaded but on the host a page is the
memory granularity for XDP...