Re: [virtio-dev] [PATCH v4] content: Introduce VIRTIO_NET_F_STANDBY feature

["Michael S. Tsirkin" <mst@redhat.com>]

On Wed, Aug 15, 2018 at 11:49:15AM -0700, Sridhar Samudrala wrote:
> VIRTIO_NET_F_STANDBY feature enables hypervisor to indicate virtio_net
> device to act as a standby for another device with the same MAC address.
> 
> Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
> Acked-by: Cornelia Huck <cohuck@redhat.com>
> Fixes: https://github.com/oasis-tcs/virtio-spec/issues/18

Applied but when do you plan to add documentation as pointed
out by Jan and Halil?

> ---
>  content.tex | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/content.tex b/content.tex
> index be18234..42a0e7e 100644
> --- a/content.tex
> +++ b/content.tex
> @@ -2525,6 +2525,9 @@ features.
>  
>  \item[VIRTIO_NET_F_CTRL_MAC_ADDR(23)] Set MAC address through control
>      channel.
> +
> +\item[VIRTIO_NET_F_STANDBY(62)] Device may act as a standby for a primary
> +    device with the same MAC address.
>  \end{description}
>  
>  \subsubsection{Feature bit requirements}\label{sec:Device Types / Network Device / Feature bits / Feature bit requirements}
> @@ -2614,6 +2617,9 @@ level ethernet header length) size with \field{gso_type} NONE or ECN, and do
>  so without fragmentation, after VIRTIO_NET_F_MTU has been successfully
>  negotiated.
>  
> +If the driver negotiates the VIRTIO_NET_F_STANDBY feature, the device MAY act
> +as a standby device for a primary device with the same MAC address.
> +
>  \drivernormative{\subsubsection}{Device configuration layout}{Device Types / Network Device / Device configuration layout}
>  
>  A driver SHOULD negotiate VIRTIO_NET_F_MAC if the device offers it.
> @@ -2636,6 +2642,8 @@ If the driver negotiates VIRTIO_NET_F_MTU, it MUST NOT transmit packets of
>  size exceeding the value of \field{mtu} (plus low level ethernet header length)
>  with \field{gso_type} NONE or ECN.
>  
> +A driver SHOULD negotiate the VIRTIO_NET_F_STANDBY feature if the device offers it.
> +
>  \subsubsection{Legacy Interface: Device configuration layout}\label{sec:Device Types / Network Device / Device configuration layout / Legacy Interface: Device configuration layout}
>  \label{sec:Device Types / Block Device / Feature bits / Device configuration layout / Legacy Interface: Device configuration layout}
>  When using the legacy interface, transitional devices and drivers
> -- 
> 2.14.4
> 
> 
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