[ovs-discuss] OVS-DPDK - af_packet vdev configuration - Error

Avi Cohen (A) avi.cohen at huawei.com
Mon Jun 19 12:08:38 UTC 2017


OK - solved
The problem was with the  device MTU which is set in the af_packet to 1518, 
In my port creation I set its MTU to 9000
I've changed the MTU in the af_packet driver to 9000

> -----Original Message-----
> From: Avi Cohen (A)
> Sent: Sunday, 18 June, 2017 5:45 PM
> To: 'ovs-discuss at openvswitch.org'; 'users at dpdk.org'
> Subject: RE: OVS-DPDK - af_packet vdev configuration - Error
> 
> I  made  upgrade to ovs2.7.0  and dpdk17.02.1 And got  these error msgs
> when I run
>      ovs-vsctl add-port br0 tap1 -- set Interface tap1 type=dpdk \
>       options:dpdk-devargs=eth_af_packet0,iface=tap1
> 
> Jun 18 14:36:29 ip-172-31-100-80 ovs-vswitchd[54914]:
> ovs|00047|netdev_dpdk|INFO|Device 'eth_af_packet0,iface=tap1' attached
> to DPDK
> 
> Jun 18 14:36:29 ip-172-31-100-80 ovs-vswitchd[54914]:
> ovs|00050|netdev_dpdk|WARN|Interface tap1 eth_dev setup error Invalid
> argument
> 
> Jun 18 14:36:29 ip-172-31-100-80 ovs-vswitchd[54914]:
> ovs|00051|netdev_dpdk|ERR|Interface tap1(rxq:1 txq:1) configure error:
> Invalid argument
> 
> Jun 18 14:36:29 ip-172-31-100-80 ovs-vswitchd[54914]:
> ovs|00052|dpif_netdev|ERR|Failed to set interface tap1 new configuration
> 
> Jun 18 14:36:29 ip-172-31-100-80 ovs-vswitchd[54914]:
> ovs|00053|bridge|WARN|could not add network device tap1 to ofproto (No
> such device)
> 
> Can someone tell what is wrong with my cli command ?
> Best Regards
> avi
> 
> > -----Original Message-----
> > From: Avi Cohen (A)
> > Sent: Sunday, 18 June, 2017 1:59 PM
> > To: ovs-discuss at openvswitch.org; users at dpdk.org
> > Subject: OVS-DPDK - af_packet vdev configuration - Error
> >
> > Hi All,
> >
> > I have ovs 2.6.1 with dpdk-stable-16.07.2 ,  I'm trying to create  an
> > af_packet vdev interface with the following commands:
> >
> >     1.    ip tuntap add dev tap1 mode tap
> >
> >    2.    ovs-vsctl add-port br0 tap1 -- set Interface tap1 type=dpdk \
> >       options:dpdk-devargs=eth_af_packet0,iface=tap1
> >
> > but I get an error message [could not open network device tap1 - No
> > such device ]
> >
> > can you assist  how to set this interface ?
> >
> > Best Regards
> > avi


More information about the discuss mailing list