[ovs-discuss] OVS DPDK|DPDK|ERR|interface dpdk0 start error:operation not permitted.

[Aaron Conole]

sothy shan <sothy.e98 at gmail.com> writes:

> Hello all,

Hi Sothy,

> I followed the installion guide provided in the web site
> https://github.com/openvswitch/ovs/blob/master/INSTALL.DPDK.md#ovstc
> to install dpdk OVS.
>
> I am rurnning Ubuntu 14.04 (kernel 3.13). It is a VM running VMware.
> One intereface is enabled by VMXNET3.
>
> I used dpdk 16.04
> Today I made clone of OVS (committ :bf32e3e2c029da18b5d6fd9210cb0ea12a1d0383).
>
> The following are different configuration compared to above link.
>
> sysctl -w vm.nr_hugepages=2048
> Binded interface via igb_uio.
>
> Then followed same configuration to start ovs-vsswitch with dpdk.

Can you please post the steps exactly that you followed?  Which user you
were running as, etc?  Can you also post how you expect packets to
arrive into the vm?

> I am able to creatre bridge. When I create a port. It gives error message.

Please show the steps for this, too.  The exact commands you used.

> When I check ovs-vswitchd.log file,
>
> There is warning that dpif_netlink|WARN|genric netlink family,
> ovs_datapath does not exist. The openvswitch kernel module may be not
> loaded.

This is definitely a problem.  How did you start the ovs-vswitchd daemon?

> Then ERR: ERR|interface dpdk0 start error:operation not permitted.
>
> The corresponding port is loaded by dpdk driver as shown in
> dpdk_nic_bind --status.
>
> After that I did sudo ovs-vsctl show. it show br and port details as well.
> I am able to add one flow rule as well. But ovs bridge didnt get
> packets from the interface.
>
> Do you know why this error is popup? anyway to solve the problem?
>
> Thank you very much
>
> Best regars
> Sothy