Re: [PATCH V5 2/6 net-next] netdevice.h: Add zero-copy flag in netdevice

On Tue, 2011-05-17 at 09:21 +0300, Michael S. Tsirkin wrote:

Problem is, in your patch there are a set of restrictions on what the
device can do with the skb that we need to enforce somehow.
Also, how do we know it's a 'real NIC' and not a software device?

I checked macvtap newlink, it doesn't seem to block software device.

So we need to work on the wider feature bit first.

Shirley