[ovs-dev] adding dpdk ports sharing same pci address to ovs-dpdk bridge

Darrell Ball dball at vmware.com
Tue Sep 12 08:40:20 UTC 2017


Hi Devendra

Could you please respond to Kevin’s query just to be sure ?

    Were you able to confirm those addresses by running ./dpdk-devbind.py -s
    in your <dpdk_src>/tools dir?

Thanks Darrell


On 9/7/17, 11:54 AM, "Kevin Traynor" <ktraynor at redhat.com> wrote:

    On 09/07/2017 06:47 PM, Darrell Ball wrote:
    > Adding discuss at openvswitch.org
    > 
    > The related changes went into 2.7
    > 
    > 
    > 
    > On 9/7/17, 3:51 AM, "ovs-dev-bounces at openvswitch.org on behalf of devendra rawat" <ovs-dev-bounces at openvswitch.org on behalf of devendra.rawat.singh at gmail.com> wrote:
    > 
    >     Hi,
    >     
    >     I have compiled and built ovs-dpdk using DPDK v17.08 and OVS v2.8.0. The
    >     NIC that I am using is Mellanox ConnectX-3 Pro, which is a dual port 10G
    >     NIC. The problem with this NIC is that it provides only one PCI address for
    >     both the 10G ports.
    >     
    >     So when I am trying to add the two DPDK ports to my br0 bridge
    >     
    >     # ovs-vsctl --no-wait add-port br0 dpdk0 -- set Interface dpdk0 type=dpdk
    >     options:dpdk-devargs=0002:01:00.0
    >     
    >     # ovs-vsctl --no-wait add-port br0 dpdk1 -- set Interface dpdk1 type=dpdk
    >     options:dpdk-devargs=0002:01:00.0
    >     
    
    Were you able to confirm those addresses by running ./dpdk-devbind.py -s
    in your <dpdk_src>/tools dir?
    
    >     The port dpdk1 is added successfully and able to transfer data, but adding
    >     dpdk0 to br0 fails:
    >     
    >     2017-09-06T14:19:20Z|00045|netdev_dpdk|INFO|Port 0: e4:1d:2d:4f:78:60
    >     2017-09-06T14:19:20Z|00046|bridge|INFO|bridge br0: added interface dpdk1 on
    >     port 1
    >     2017-09-06T14:19:20Z|00047|bridge|INFO|bridge br0: added interface br0 on
    >     port 65534
    >     2017-09-06T14:19:20Z|00048|dpif_netlink|WARN|Generic Netlink family
    >     'ovs_datapath' does not exist. The Open vSwitch kernel module is probably
    >     not loaded.
    >     2017-09-06T14:19:20Z|00049|netdev_dpdk|WARN|'dpdk0' is trying to use device
    >     '0002:01:00.0' which is already in use by 'dpdk1'
    >     2017-09-06T14:19:20Z|00050|netdev|WARN|dpdk0: could not set configuration
    >     (Address already in use)
    >     2017-09-06T14:19:20Z|00051|bridge|INFO|bridge br0: using datapath ID
    >     0000e41d2d4f7860
    >     
    >     
    >     With OVS v2.6.1 I never had this problem as dpdk-devargs was not mandatory
    >     and just specifying port name was enough to add that port to bridge.
    >     
    >     Is there a way to add port both ports to bridge ?
    >     
    >     Thanks,
    >     Devendra
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