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

Avi Cohen (A) avi.cohen at huawei.com
Mon Jun 19 13:59:06 UTC 2017


Not solved - the tap device is linkdown

> -----Original Message-----
> From: Avi Cohen (A)
> Sent: Monday, 19 June, 2017 3:09 PM
> To: 'ovs-discuss at openvswitch.org'; 'users at dpdk.org'
> Subject: RE: OVS-DPDK - af_packet vdev configuration - Error
> 
> 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
> > ovs|00052|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


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