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

Kyle Mestery (kmestery) kmestery at cisco.com
Wed Dec 5 19:52:39 UTC 2012


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.

Thanks,
Kyle


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