On Fri, 19 Jul 2019 12:11:51 +0800
Tiwei Bie <> wrote:
> Similar to the MAC address based filtering, the VLAN filtering
> is also best-effort in implementations, but it's not quite clear
> in the spec. So document this behaviour explicitly to reflect
> the way implementations behave.
>
> Fixes: https://github.com/oasis-tcs/virtio-spec/issues/47
> Signed-off-by: Tiwei Bie <>
> Acked-by: Michael S. Tsirkin <>
> ---
> v1:
> - Add "Fixes:" tag;
>
> RFC link:
> https://lists.oasis-open.org/archives/virtio-dev/201907/msg00035.html
>
> content.tex | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/content.tex b/content.tex
> index 8f0498e..783322b 100644
> --- a/content.tex
> +++ b/content.tex
> @@ -3530,6 +3530,11 @@ \subsubsection{Control Virtqueue}\label{sec:Device Types / Network Device / Devi
> If the driver negotiates the VIRTION_NET_F_CTRL_VLAN feature, it
> can control a VLAN filter table in the device.
>
> +\begin{note}
> +Similar to the MAC address based filtering, the VLAN filtering
> +is also best-effort: unwanted packets could still arrive.
> +\end{note}
> +
> \begin{lstlisting}
> #define VIRTIO_NET_CTRL_VLAN 2
> #define VIRTIO_NET_CTRL_VLAN_ADD 0
Reviewed-by: Cornelia Huck <>
