[ovs-discuss] OvS using newer DPDK

Ilya Maximets i.maximets at samsung.com
Thu Nov 1 08:30:48 UTC 2018

On 31.10.2018 19:16, Ophir Munk wrote:
> Guys,
> Any comments to OVS upgrade to dpdk 18.08? 
> https://patchwork.ozlabs.org/project/openvswitch/list/?series=72606

I don't see them on a list. I guess, they was sent while the list was

Few commnets:
1. Until your patch for RSS key len is not merged in DPDK, we have to
   provide some rss_key. Otherwise offloading will not work for mlx NICs.
   Do you expect that patch will be in 18.11 release? The window is closed
   for the new features already.

2. IMHO, it's better to return the action_rss_data structure itself and
   use just a field instead of freeing with container_of and writing a
   huge comment.

Best regards, Ilya Maximets.

> Regards,
> Ophir
>> -----Original Message-----
>> From: Stokes, Ian [mailto:ian.stokes at intel.com]
>> Sent: Wednesday, October 31, 2018 5:52 PM
>> To: Andrzej Ostruszka <amo at semihalf.com>; ovs-discuss at openvswitch.org
>> Cc: Ophir Munk <ophirmu at mellanox.com>
>> Subject: RE: [ovs-discuss] OvS using newer DPDK
>>> Hello all,
>>> I remember some time ago there was topic raised here about new LTS
>>> release.  I'd like to ask related question - what version of DPDK will
>>> it be based on?  18.11 (which is going to be new LTS release of DPDK)?
>> Yes, the plan would be ideally to move to DPDK 18.11.
>>> If it is then is there anybody already working on that?
>> Yes, the dpdk_latest branch was setup for this purpose.
>> There are patches submitted to move OVS to use DPDK 18.08 first. From
>> there a new set of patches will be created to move to DPDK 18.11. Once
>> there is agreement and sign off from the OVS DPDK community we would
>> look to apply those to the OVS master branch in time for the OVS 2.11
>> release.
>>> I'm asking these questions since I've nailed the reason for getting
>>> OvS crashes on Marvell Armada 8K board.  They are while attempting to
>>> set MTU and there are some patches affecting MTU/MRU calculations that
>> might help.
>> Are these patches targeted at OVS project or the DPDK project?
>>> So basically I might attempt to backport them or try to get OvS
>>> working with newer DPDK.
>> OVS is moving towards using DPDK LTS releases only for OVS releases and
>> the master branch.
>> If the patches target DPDK then they could be backported to the relevant
>> DPDK LTS releases. Once in place there you could also backport support to
>> OVS 2.9 and OVS 2.10 which use DPDK 17.11.
>>> Since I prefer the latter I would like to join somebody doing this
>>> update (I don't feel comfortable enough with OvS to do that on my
>>> own).
>> Ok sure, there is not a patch to make DPDK use 18.11 yet. That's in progress.
>> I've cc'd Ophir who has been looking at this to date. Once there is a patch for
>> 18.11 if you could test it with the Marvell device that would be great help.
>> Thanks
>> Ian
>>> Best regards
>>> Andrzej
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