Hi Flavio, thanks for reaching out.
The DPDK options used in OvS are: other_config:pmd-cpu-mask=0x202 other_config:dpdk-socket-mem=1024 other_config:dpdk-init=true For the dpdk port, we set: type=dpdk options:dpdk-devargs=0000:08:0b.2 external_ids:unused-drv=i40evf mtu_request=9216 Please let me know if this is what you asked for. Thanks Tobias On 04.11.19, 15:50, "Flavio Leitner" <f...@sysclose.org> wrote: It would be nice if you share the DPDK options used in OvS. On Sat, 2 Nov 2019 15:43:18 +0000 "Tobias Hofmann \(tohofman\) via discuss" <ovs-discuss@openvswitch.org> wrote: > Hello community, > > My team and I observe a strange behavior on our system with the > creation of dpdk ports in OVS. We have a CentOS 7 system with > OpenvSwitch and only one single port of type ‘dpdk’ attached to a > bridge. The MTU size of the DPDK port is 9216 and the reserved > HugePages for OVS are 512 x 2MB-HugePages, e.g. 1GB of total HugePage > memory. > > Setting everything up works fine, however after I reboot my box, the > dpdk port is in error state and I can observe this line in the logs > (full logs attached to the mail): > 2019-11-02T14:46:16.914Z|00437|netdev_dpdk|ERR|Failed to create > memory pool for netdev dpdk-p0, with MTU 9216 on socket 0: Invalid > argument 2019-11-02T14:46:16.914Z|00438|dpif_netdev|ERR|Failed to set > interface dpdk-p0 new configuration > > I figured out that by restarting the openvswitch process, the issue > with the port is resolved and it is back in a working state. However, > as soon as I reboot the system a second time, the port comes up in > error state again. Now, we have also observed a couple of other > workarounds that I can’t really explain why they help: > > * When there is also a VM deployed on the system that is using > ports of type ‘dpdkvhostuserclient’, we never see any issues like > that. (MTU size of the VM ports is 9216 by the way) > * When we increase the HugePage memory for OVS to 2GB, we also > don’t see any issues. > * Lowering the MTU size of the ‘dpdk’ type port to 1500 also > helps to prevent this issue. > > Can anyone explain this? > > We’re using the following versions: > Openvswitch: 2.9.3 > DPDK: 17.11.5 > > Appreciate any help! > Tobias _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss