[ovs-dev] OVS-DPDK public meeting

Kevin Traynor ktraynor at redhat.com
Thu Nov 28 10:59:05 UTC 2019


Next meeting Jan 8th 1700 UTC

November 27th minutes

Attendees: Aaron, David, Oz, Ilya, Johann, Simon, Roni, Ian, Thomas, Kevin.

- DPDK 19.11 Release
-- OVS validation complete to date
-- Ian presented tests performed with OVS and Intel NICs
-- Summary was sent to dpdk-dev
http://inbox.dpdk.org/dev/3b7e3b9b-117c-d23a-c8e3-43b94eb87554@intel.com/
-- Request from Ian for other device vendors test with dpdk-latest
branch, or when patch for master branch ready

-- Known Issues
--- Clear Memory Layout Flags
---- Ilya submitted a fix for this
---- There is some further discussion about the offload flags but it can
happen later in the context of dpdkr deprecation

--- Hotplug support for IGB_UIO
---- The scheme for picking PA/VA mode in DPDK has evolved since 18.11
---- The change in behavior (19.08):
https://git.dpdk.org/dpdk/commit?id=bbe29a9bd7ab6feab9a52051c32092a94ee886eb
---- The selection process is explained here
http://doc.dpdk.org/guides/prog_guide/env_abstraction_layer.html#iova-mode-detection
---- There can be a pattern now where adding an igb_uio bound device
with hotplug will require '--iova-mode=pa' eal param to work as before
---- dpdk-extra ovsdb entry can be used for this with OVS
---- General discussion was that vfio is preferred option and that
igb_uio is not suitable/supported in some environments
---- Will need some addition documentation in OVS

- DPDK Stable Releases
-- 18.11.5
--- There is patches to update master/2.12/2.11 branches
--- 18.11.5 addresses
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14818
--- OVS using dpdk vhost and untrusted guest should update
--- Updates for 17.11 on older branches will come later

- OVS Con 2019
-- Full house! hopefully live streaming will be available
-- Videos will be recorded

- rte_flow full hw offload through DPDK (Oz)
-- Patches are submitted for initial features
-- Some feedbacks from Ilya to address
-- Hoping they can be merged in time for 2.13
-- Later features can be vxlan, connection tracking etc.
-- Will present on this in ovs conf

dpdk-master branch
- Small discussion on effectiveness of it
- Some suggestions
-- Enable periodic travis build from it
-- More regular rebases from OVS master
-- Some earlier usage testing (e.g. with DPDK .08 release)

Next meeting date
- Was scheduled for 25th December
- Pushing to Jan 8th


On 25/07/2017 14:25, Kevin Traynor wrote:
> Hi All,
> 
> The OVS-DPDK public meetings have moved to Wednesday's at the same time.
> Everyone is welcome, it's a chance to share status/plans etc.
> 
> It's scheduled for every 2 weeks starting 26th July. Meeting time is
> currently @ 4pm UTC.
> 
> You can connect through Bluejeans or through dial in:
> 
> https://bluejeans.com/139318596
> 
> US: +1.408.740.7256
> UK: +44.203.608.5256
> Germany: +49.32.221.091256
> Ireland: +353.1.697.1256
> Other numbers at https://www.bluejeans.com/numbers
> Meeting ID: 139318596
> 
> thanks,
> Kevin.
> 



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