From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shirley Ma <mashirle@us.ibm.com>
Subject: Re: [PATCH V5 2/6 net-next] netdevice.h: Add zero-copy flag in
 netdevice
Date: Tue, 17 May 2011 13:53:19 -0700
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Cc: Ben Hutchings <bhutchings@solarflare.com>,
	David Miller <davem@davemloft.net>,
	Eric Dumazet <eric.dumazet@gmail.com>,
	Avi Kivity <avi@redhat.com>, Arnd Bergmann <arnd@arndb.de>,
	netdev@vger.kernel.org, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org
To: "Michael S. Tsirkin" <mst@redhat.com>
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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