> Hi David,
> 
> Thanks much for your email,
> 
> We can successfully compile OVS 2.16.0 to 2.16.2 with DPDK 21.08 but it fails
> with DPDK 21.11,
Hi Syed,

As David stated below, OVS 2.16 is not expected to compile with DPDK 21.11.

Each OVS release is expected to compile against a particular DPDK Release.

These can be found in the following link

https://docs.openvswitch.org/en/latest/faq/releases/

Under the section: Q: What DPDK version does each Open vSwitch release work 
with?

If you wish to use DPDK 21.11 then I suggest you use OVS master or else the OVS 
2.17 branch (due for official release in February).

If you have a hard requirement to use OVS 2.16 then the officially validated 
and supported DPDK release for that branch is 20.11.1.

Hope this helps.

Thanks
Ian


> 
> Documentation (https://docs.openvswitch.org/en/latest/intro/install/dpdk/) or
> (https://github.com/openvswitch/ovs/blob/master/Documentation/intro/install
> /dpdk.rstmentioned) also mentions that DPDK 21.11 is supported with current /
> latest OVS version.
> 
> OVS Git master branch is up to date but tag 2.16.2 is lacking new PR's merged 
> in
> master that claims to support DPDK 21.11 such as
> https://github.com/openvswitch/ovs/commit/17346b3899d98730fc90f039a966
> b107aeae30b5
> 
> I hope above information is helpful...
> 
> Kind Regards,
> Syed Faraz Ali Shah,
> System Software Validation Engineer
> 
> -----Original Message-----
> From: David Marchand <david.march...@redhat.com>
> Sent: Tuesday, January 18, 2022 3:04 PM
> To: Ali Shah, Syed Faraz <syed.faraz.ali.s...@intel.com>
> Cc: b...@openvswitch.org; Puzikov, DmitriiX <dmitriix.puzi...@intel.com>;
> Gibson, Joel A <joel.a.gib...@intel.com>; Gherghe, Calin
> <calin.gher...@intel.com>; Stokes, Ian <ian.sto...@intel.com>
> Subject: Re: [ovs-discuss] OVS (tag: 2.16.2) Build Fails With DPDK 21.11
> 
> On Fri, Jan 14, 2022 at 2:47 AM Ali Shah, Syed Faraz
> <syed.faraz.ali.s...@intel.com> wrote:
> > DPDK 21.11 fails to compile Open vSwitch (tag: 2.16.2) but work well
> > with DPDK 21.08, the latest tag version of OVS has some issues. It
> > would be appreciated if you look at the following complain. Thanks
> > much,
> 
> This lacks details.
> 
> I would expect that OVS 2.16 does *not* compile against 21.08 (because of API
> changes in DPDK).
> 
> 2.16 is supposed to compile against 20.11 and can (I must admit I did not 
> check)
> be linked against DPDK compiled as a dso (versions 21.02,
> 21.05 and 21.08).
> It is expected that OVS 2.16 fails to link against DPDK 21.11, since
> DPDK_21 ABI has not been preserved.
> 
> 
> --
> David Marchand
> 

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