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Date:	Mon, 3 Aug 2015 23:01:41 -0700
From:	Alexei Starovoitov <>
To:	Pravin Shelar <>
Cc:	David Miller <>, netdev <>
Subject: Re: [PATCH net-next v2 1/2] openvswitch: Use regular GRE net_device
 instead of vport

On Mon, Aug 03, 2015 at 10:58:02PM -0700, Pravin Shelar wrote:
> >> > feature detection based on netdev name?
> >> > meaning that there will be only one such device for the whole
> >> > host? and namespaces cannot have their own gre tunnels?
> >> > (since host 'gretap0' cannot be seen in netns)
> >> >
> >> gretap0 exist in every namespace. This device is created in GRE namespce init.
> >
> > then all of them get to be in flow_based mode without being able to
> > change it?
> >
> Yes, But there is no side effect of this feature for the user of the device.

other than allocating metadata_dst for every incoming packet?
If you could actually do it for free then we wouldn't need a flag.

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