RE: [virtio] Re: [virtio-comment] [PATCH requirements 7/7] net-features: Add header data split requirements

[Parav Pandit <parav@nvidia.com>]

> From: David Edmondson <david.edmondson@oracle.com>
> Sent: Monday, August 14, 2023 7:26 PM
 
> Perhaps the requirement, then, should be that the device is permitted (and
> encouraged) to write full cache lines, with an aside that zero padding should be
> used to achieve this.

Yes, we can relax this.
I think the point from driver->device interface point of view is to communicate this details and use aligned offset within the header buffer for subsequent packet entries.
So that driver knows where to expect the next packet's header (at cache aligned address).