Re: [PATCH v12] virtio-net: support inner header hash

[Parav Pandit <parav@nvidia.com>]

On 4/11/2023 11:05 PM, Heng Qi wrote:

> NOTE: We only have two modes now. The mode is not equal to the command. 
> We can add VIRTIO_NET_CTRL_MQ_TUNNEL_CONFIG for commands, but there are 
> still only two modes:
> "
> This specification defines the following modes that a device MAY 
> implement for operation with multiple transmit/receive virtqueues:
> \begin{itemize}
> \item Automatic receive steering as defined in \ref{sec:Device Types / 
> Network Device / Device Operation / Control Virtqueue / Automatic 
> receive steering in multiqueue mode}.
>  Â If a device supports this mode, it offers the VIRTIO_NET_F_MQ feature 
> bit.
> \item Receive-side scaling as defined in \ref{devicenormative:Device 
> Types / Network Device / Device Operation / Control Virtqueue / 
> Receive-side scaling (RSS) / RSS processing}.
>  Â If a device supports this mode, it offers the VIRTIO_NET_F_RSS 
> feature bit.
> \end{itemize}

> So, it is not incorrect that we put VIRTIO_NET_CTRL_MQ_TUNNEL_CONFIG here.

Got it. I got confused between mode and command with the text

"The command selects the mode of multiqueue operation, as follows:"

But its clear to me now.
Thanks.