RE: [virtio-dev] RE: [virtio-comment] [PATCH v8] virtio-net: support inner header hash

[Parav Pandit <parav@nvidia.com>]

> From: Heng Qi <hengqi@linux.alibaba.com>
> Sent: Thursday, February 16, 2023 1:58 AM
> 
> I'm really okay with this, the tunnel type seems to help the software driver do
> more things in the future, for example, the driver may not want to use the
> outer hash value when forwarding packets. But if there is really no practical
> scenario for the driver at present, then let us hide the tunnel types in the
> \field{hash_report}?
>
Right. Lets omit hash_report in virtio_net_hdr.
 
> >
> > What is valuable is to have a VNI already identified and coming to the driver,
> like a hash value.
> 
> This is too specific to a certain tunnel protocol, not every protocol has
> corresponding VNI information.
> 
True. I was considering a hash of the generic outer header through which it can reach to generic tunnel.
But it is a very different feature of its own, so yes, better to split and proceed with this to improve inner hash.