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

Darrell Ball dball at vmware.com
Mon Sep 18 19:43:22 UTC 2017

Thanks for confirming Devendra

Adding Ciara
There have been some offline discussions regarding the issue.

From: devendra rawat <devendra.rawat.singh at gmail.com>
Date: Monday, September 18, 2017 at 4:27 AM
To: Kevin Traynor <ktraynor at redhat.com>
Cc: Darrel Ball <dball at vmware.com>, "ovs-dev at openvswitch.org" <ovs-dev at openvswitch.org>, "discuss at openvswitch.org" <discuss at openvswitch.org>
Subject: Re: [ovs-dev] adding dpdk ports sharing same pci address to ovs-dpdk bridge

Hi Kevin,

On Fri, Sep 8, 2017 at 12:24 AM, Kevin Traynor <ktraynor at redhat.com<mailto:ktraynor at redhat.com>> wrote:
On 09/07/2017 06:47 PM, Darrell Ball wrote:
> Adding discuss at openvswitch.org<mailto:discuss at openvswitch.org>
> The related changes went into 2.7
> On 9/7/17, 3:51 AM, "ovs-dev-bounces at openvswitch.org<mailto:ovs-dev-bounces at openvswitch.org> on behalf of devendra rawat" <ovs-dev-bounces at openvswitch.org<mailto:ovs-dev-bounces at openvswitch.org> on behalf of devendra.rawat.singh at gmail.com<mailto: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?

On running dpdk-devbind.py --status , I can see the ConnectX-3 pro NIC, having only one PCI address.

Network devices using DPDK-compatible driver

Network devices using kernel driver
0002:01:00.0 'MT27520 Family [ConnectX-3 Pro] 1007' if=enP4p1s0d1,enP4p1s0 drv=mlx4_core unused=
0006:01:00.0 'I210 Gigabit Network Connection 1533' if=enP6p1s0 drv=igb unused= *Active*

>     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
>     _______________________________________________
>     dev mailing list
>     dev at openvswitch.org<mailto:dev at openvswitch.org>
>     https://urldefense.proofpoint.com/v2/url?u=https-3A__mail.openvswitch.org_mailman_listinfo_ovs-2Ddev&d=DwICAg&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=qO7NdgrrorJhievOguQLmsfEFuBcPfz9NfQX7UME1-8&s=ZKHbYlaTjm8VFj6Rggmcb2gw6s3xW4PxEtUy4YFG1VA&e=
> _______________________________________________
> dev mailing list
> dev at openvswitch.org<mailto:dev at openvswitch.org>
> https://mail.openvswitch.org/mailman/listinfo/ovs-dev<https://urldefense.proofpoint.com/v2/url?u=https-3A__mail.openvswitch.org_mailman_listinfo_ovs-2Ddev&d=DwMFaQ&c=uilaK90D4TOVoH58JNXRgQ&r=BVhFA09CGX7JQ5Ih-uZnsw&m=BJU9Z14XX5XaHpeDdiTDO49xeh-weT6qa80ya-pmmdY&s=XGrhuWu2leX8KxlES1UqLYrvyX8mOC3ijIxOiOM-c9U&e=>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.openvswitch.org/pipermail/ovs-discuss/attachments/20170918/c0280489/attachment-0001.html>

More information about the discuss mailing list