Ohh. - I've downgrade to 17.08 (from 17.11) and  forgot to set this flag . 
checking now...

> -----Original Message-----
> From: Olga Shern [mailto:ol...@mellanox.com]
> Sent: Monday, 19 February, 2018 3:26 PM
> To: Avi Cohen (A); ovs-discuss@openvswitch.org
> Subject: RE: ovs-dpdk cannot add a dpdk mellanox port
> 
> Did you compile DPDK with mlx5 PMD enabled?
> 
> -----Original Message-----
> From: Avi Cohen (A) [mailto:avi.co...@huawei.com]
> Sent: Monday, February 19, 2018 3:20 PM
> To: Olga Shern <ol...@mellanox.com>; ovs-discuss@openvswitch.org
> Subject: RE: ovs-dpdk cannot add a dpdk mellanox port
> 
> Thank you Olga
> I did specify the port name as ibv_devinfo output - but still I'm getting 
> error
> msg:
> 
> 
> Feb 19 15:16:03 Pizza05 ovs-vsctl: ovs|00001|vsctl|INFO|Called as ovs-vsctl --
> timeout 10 add-port br-phy dpdk0 -- set Interface dpdk0 type=dpdk
> options:dpdk-devargs=mlx5_0 Feb 19 15:16:03 Pizza05 ovs-vswitchd[29371]:
> ovs|00044|dpdk|ERR|EAL: Unable to find a bus for the device 'mlx5_0'
> Feb 19 15:16:03 Pizza05 ovs-vswitchd[29371]:
> ovs|00045|netdev_dpdk|WARN|Error attaching device 'mlx5_0' to DPDK Feb
> 19 15:16:03 Pizza05 ovs-vswitchd[29371]: ovs|00046|netdev|WARN|dpdk0:
> could not set configuration (Invalid argument
> 
> Best Regards
> Avi
> 
> > -----Original Message-----
> > From: Olga Shern [mailto:ol...@mellanox.com]
> > Sent: Monday, 19 February, 2018 2:58 PM
> > To: Avi Cohen (A); ovs-discuss@openvswitch.org
> > Subject: RE: ovs-dpdk cannot add a dpdk mellanox port
> >
> > Hi Avi,
> >
> > Please try the following command    ovs-vsctl --timeout 10 add-port br-phy
> > dpdk0   -- set Interface dpdk0 type=dpdk options:dpdk-devargs=mlx5_0
> >
> > You need to specify port name, mlx5_0 or mlx5_1 according  ibv_devinfo
> > output
> >
> > Starting DPDK 18.02 and 17.11.2 you will be able to use PCI address as
> > OVS devargs parameters.
> >
> > Best Regards,
> > Olga
> >
> > -----Original Message-----
> > From: ovs-discuss-boun...@openvswitch.org [mailto:ovs-discuss-
> > boun...@openvswitch.org] On Behalf Of Avi Cohen (A)
> > Sent: Monday, February 19, 2018 2:33 PM
> > To: ovs-discuss@openvswitch.org
> > Subject: [ovs-discuss] ovs-dpdk cannot add a dpdk mellanox port
> >
> > Hi
> > I cannot add mellanox dpdk port - and  I don't find any reference for
> > this for new ovs versions I get  an error message when typing this command
> > ovs-vsctl --timeout 10 add-port br-phy dpdk0   -- set Interface dpdk0
> type=dpdk
> > options:dpdk-devargs=0000:04:00:0
> > I'm running:
> > Openvswitch 2.8.1 ; dpdk-17.08 ' mellanox - connectx-4
> >
> > Best Regards
> > Avi
> > _______________________________________________
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