netdev - Re: [PATCH v2.33] datapath: Add basic MPLS support to kernel

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Message-ID: <20130621003954.GA18705@verge.net.au>
Date:	Fri, 21 Jun 2013 09:39:56 +0900
From:	Simon Horman <horms@...ge.net.au>
To:	Jesse Gross <jesse@...ira.com>
Cc:	"dev@...nvswitch.org" <dev@...nvswitch.org>,
	netdev <netdev@...r.kernel.org>, Ravi K <rkerur@...il.com>,
	Isaku Yamahata <yamahata@...inux.co.jp>,
	Pravin B Shelar <pshelar@...ira.com>,
	Jarno Rajahalme <jarno.rajahalme@....com>,
	Joe Stringer <joe@...d.net.nz>
Subject: Re: [PATCH v2.33] datapath: Add basic MPLS support to kernel

On Thu, Jun 20, 2013 at 12:28:32PM -0700, Jesse Gross wrote:
> On Wed, Jun 19, 2013 at 5:56 PM, Simon Horman <horms@...ge.net.au> wrote:
> > On Tue, Jun 18, 2013 at 04:06:49PM +0900, Simon Horman wrote:
> >> Allow datapath to recognize and extract MPLS labels into flow keys
> >> and execute actions which push, pop, and set labels on packets.
> >>
> >> Based heavily on work by Leo Alterman, Ravi K, Isaku Yamahata and Joe Stringer.
> >>
> >> Cc: Ravi K <rkerur@...il.com>
> >> Cc: Leo Alterman <lalterman@...ira.com>
> >> Cc: Isaku Yamahata <yamahata@...inux.co.jp>
> >> Cc: Joe Stringer <joe@...d.net.nz>
> >> Signed-off-by: Simon Horman <horms@...ge.net.au>
> >>
> >> ---
> >>
> >> This patch depends on "gre: Restructure tunneling" which it aims
> >> to be compatible with.
> >
> > To clarify. The dependency relates to a conflict when applying this patch
> > which modifies datapath/linux/compat/gso.[ch], files that are
> > created by "gre: Restructure tunneling". I believe it would
> > be trivial to reverse the dependency so that this patch creates
> > those files and "gre: Restructure tunneling" applies on top of it
> > as the two patches add different functions to those files.
> >
> > As such I think it would be better to describe this patch
> > as compatible with "gre: Restructure tunneling" rather than
> > dependent on it.
> 
> I agree that's the case. However, now that the OVS GRE code is
> upstream, I think I can take just a quick pass over the GRE patch to
> get it in and then we won't have any dependency issues.

Thanks. Of course I am would be more than happy with that.
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