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Date: Wed, 19 Oct 2016 10:27:55 -0400 (EDT)
From: Tim Rozet <trozet@redhat.com>
To: Thomas F Herbert <therbert@redhat.com>,
 Gregory Elkinbard <gelkinbard@mirantis.com>, mskalski@mirantis.com,
 fzhadaev@mirantis.com
Cc: dev@dpdk.org, opnfv-tech-discuss@lists.opnfv.org,
 Edward Warnicke <hagbard@gmail.com>,
 "Frank Brockners (fbrockne)" <fbrockne@cisco.com>
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Thread-Topic: Problem showed up with OVS/DPDK with Cisco VIC adapter
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Subject: Re: [dpdk-dev] [opnfv-tech-discuss] [apex][ovsnfv][fuel]Problem
 showed up with OVS/DPDK with Cisco VIC adapter
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Fuel also supports the ovs dpdk scenario. 

Greg, Michal, Fedor,
How do does Fuel get around this on the LF UCS hardware?

Tim Rozet
Red Hat SDN Team

----- Original Message -----
From: "Thomas F Herbert" <therbert@redhat.com>
To: dev@dpdk.org
Cc: opnfv-tech-discuss@lists.opnfv.org, "Edward Warnicke" <hagbard@gmail.com>
Sent: Tuesday, October 18, 2016 4:35:04 PM
Subject: [opnfv-tech-discuss] [apex][ovsnfv]Problem showed up with OVS/DPDK with Cisco VIC adapter



All: 


This is not necessarily related to VPP but rather to OVS/DPDK. 

In OPNFV we found the following problem when using UCS NIC. 

The UCS fabric seems to set a VLAN tag on untagged packets. 


Any thoughts from DPDK and VPP folks would be appreciated. 


http://dpdk.org/doc/guides-16.07/nics/enic.html 


https://jira.opnfv.org/browse/APEX-333 


It is currently deploying DPDK 16.04 and OVS 2.5.90 

I could not find a user accessible setting to do this that would work. The workaround for now we came up with is to set a flow in OVS to strip the tag. 


https://gerrit.opnfv.org/gerrit/#/c/23315/ 

Another solution is to set the nic to strip the vlan in rte eth code or write a DPDK "app" to set the nic. 


http://dpdk.org/doc/guides-16.07/nics/enic.html 


--TFH 

-- 
Thomas F Herbert 
SDN Group 
Office of Technology 
Red Hat 

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