netdev - Re: [PATCH v2] virtio_net: fix PAGE

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Message-Id: <20170124.150959.1708982899683381291.davem@davemloft.net>
Date:   Tue, 24 Jan 2017 15:09:59 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     mst@...hat.com
Cc:     linux-kernel@...r.kernel.org, jasowang@...hat.com,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        john.fastabend@...il.com
Subject: Re: [PATCH v2] virtio_net: fix PAGE_SIZE > 64k

From: "Michael S. Tsirkin" <mst@...hat.com>
Date: Tue, 24 Jan 2017 21:53:13 +0200

> I didn't realise. Why can't we? I thought that adjust_header is an
> optional feature that userspace can test for, so no rush.

No, we want the base set of XDP features to be present in all drivers
supporting XDP.