[ovs-dev] [PATCH v7] datapath: Add support for VXLAN tunnels to Open vSwitch

Ben Pfaff blp at nicira.com
Wed Dec 5 21:35:36 UTC 2012


On Wed, Dec 05, 2012 at 07:52:39PM +0000, Kyle Mestery (kmestery) wrote:
> On Dec 5, 2012, at 1:47 PM, Ben Pfaff <blp at nicira.com> wrote:
> > On Wed, Dec 05, 2012 at 10:23:43AM -0800, Jesse Gross wrote:
> >> This will run on both userspace and kernel for the files that need to
> >> be recompiled.  The userspace version is a little bit more
> >> temperamental because sparse requires header annotations to work
> >> properly and userspace headers don't generally have those.  OVS has a
> >> special annotated set but I've only seen them work on Debian.  If you
> >> use C=2 instead then it will run on all files (regardless of
> >> compilation status) on just the kernel.
> > 
> > I think the main reason they only work on Debian (and only on squeeze so
> > far) is just because that's what I use, and I wrote them.  I don't think
> > it would be too hard to adapt them to other systems, if the people who
> > use those systems would take a little time to do it.
> 
> I was thinking the same thing, let me see what I can do about it. I
> was also thinking of submitting a FAQ entry with the info on how to
> run sparse. I'll look into both of these once I rework the VXLAN
> patch.

The info on how to run sparse is in INSTALL.  You can add some
details, if you like.



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