[ovs-dev] Vhostuser ports - Jumbo MTU issue

[sai kiran]

Hi,

I am trying to use OVS with DPDK, using OVS (2.7.0) and DPDK 16.11.1

[root at localhost openvswitch-2.7.0]# ./utilities/ovs-vsctl -V
ovs-vsctl (Open vSwitch) 2.7.0
DB Schema 7.14.0


I have added a netdev datapath and vhost-user ports following the steps
mentioned in OVS manuals.

$OVS_DIR/utilities/ovs-vsctl add-br ovs-br0 -- set bridge ovs-br0
datapath_type=netdev
$OVS_DIR/utilities/ovs-vsctl add-port ovs-br0 vhost-user1 -- set Interface
vhost-user1 type=dpdkvhostuser
$OVS_DIR/utilities/ovs-vsctl add-port ovs-br0 vhost-user2 -- set Interface
vhost-user2 type=dpdkvhostuser


[root at localhost openvswitch-2.7.0]# ./utilities/ovs-vsctl show
13552504-fd97-41e0-8bd9-1d68d229aa61
    Bridge "ovs-br0"
        Port "vhost-user1"
            Interface "vhost-user1"
                type: dpdkvhostuser
        Port "vhost-user2"
            Interface "vhost-user2"
                type: dpdkvhostuser
        Port "ovs-br0"
            Interface "ovs-br0"
                type: internal



Now, when I try to set MTU of the interface to 9000, it is not taking
effect.

[root at localhost openvswitch-2.7.0]# ./utilities/ovs-vsctl -- set Interface
vhost-user1 mtu_request=9000
2017-06-08T04:42:02Z|00002|ovsdb_idl|WARN|Interface table in Open_vSwitch
database lacks mtu_request column (database needs upgrade?)
ovs-vsctl: transaction error: {"details":"No column mtu_request in table
Interface.","error":"unknown column","syntax":"{\"mtu_request\":9000}"}

[root at localhost openvswitch-2.7.0]# ./utilities/ovs-vsctl -- get Interface
vhost-user1 mtu
1500
[root at localhost openvswitch-2.7.0]# ./utilities/ovs-vsctl -- set Interface
vhost-user1 mtu=9000

[root at localhost openvswitch-2.7.0]# ./utilities/ovs-vsctl -- get Interface
vhost-user1 mtu
1500



Please advise what else I need to do, to successfully set Jumbo MTU on
vhostuser ports and to use jumbo traffic.

Thanks in advance.

Regards,
*Sai Kiran*