[ovn][neutron][ussuri] DPDK support on OVN Openstack? Openstack Doc contradictive Information?
I want to implement DPDK on my Openstack using OVN as mechanism driver. I read 2 documentation: [1] https://docs.openstack.org/neutron/ussuri/admin/ovn/dpdk.html [2] https://docs.openstack.org/neutron/ussuri/admin/config-ovs-dpdk.html In first doc [1], it is said that DPDK has been supported on OVN. But in second doc [2] it is said `The support of this feature is not yet present in ML2 OVN and ODL mechanism drivers.` Which one is true? because I have TCP checksum issue when implement DPDK on OVN same like this: https://bugs.launchpad.net/neutron/+bug/1832021. It has patched on OVS but not work on OVN. Regards,
Ah, it seems like vhost-user-reconnect feature which is not yet supported. But the problem still, I cant get metadata because of tcp checksum error. On Mon, Aug 24, 2020, 12:31 Popoi Zen <alterriu@gmail.com> wrote:
I want to implement DPDK on my Openstack using OVN as mechanism driver. I read 2 documentation: [1] https://docs.openstack.org/neutron/ussuri/admin/ovn/dpdk.html [2] https://docs.openstack.org/neutron/ussuri/admin/config-ovs-dpdk.html
In first doc [1], it is said that DPDK has been supported on OVN. But in second doc [2] it is said `The support of this feature is not yet present in ML2 OVN and ODL mechanism drivers.`
Which one is true? because I have TCP checksum issue when implement DPDK on OVN same like this: https://bugs.launchpad.net/neutron/+bug/1832021. It has patched on OVS but not work on OVN.
Regards,
On 2020-08-24 13:57:59 +0700 (+0700), Popoi Zen wrote: [...]
I cant get metadata because of tcp checksum error. [...]
I'm not familiar with the rest of the challenges you're facing, but consider using configdrive for metadata access. It's generally more reliable and resilient than trying to retrieve metadata over the network. https://docs.openstack.org/nova/ussuri/admin/config-drive.html -- Jeremy Stanley
On Mon, 2020-08-24 at 11:58 +0000, Jeremy Stanley wrote:
On 2020-08-24 13:57:59 +0700 (+0700), Popoi Zen wrote: [...]
I cant get metadata because of tcp checksum error.
[...]
I'm not familiar with the rest of the challenges you're facing, but consider using configdrive for metadata access. It's generally more reliable and resilient than trying to retrieve metadata over the network.
https://docs.openstack.org/nova/ussuri/admin/config-drive.html
ovn should not change the packet processing vs ml2/ovs with dpdk if you are haveing checksum issue its proably an issue with your underlying network or dpdk/ovs not the fact your using ovn.
participants (3)
-
Jeremy Stanley
-
Popoi Zen
-
Sean Mooney