[ovs-discuss] No Ethernet devices found with I350

[Traynor, Kevin]

> -----Original Message-----
> From: discuss [mailto:discuss-bounces at openvswitch.org] On Behalf Of Rapelly,
> Varun
> Sent: Wednesday, June 24, 2015 11:43 AM
> To: Daniele Di Proietto
> Cc: bugs at openvswitch.org
> Subject: Re: [ovs-discuss] No Ethernet devices found with I350
> 
> Hi Daniel,
> 
> One more thing about the following command after creating the bridge br0:
> 
> ovs-vsctl add-port br0 dpdk0 -- set Interface dpdk0 type=dpdk.
> 
> If I try to execute the above cmd, it says dpdk0 no such device. And if I
> give specific interface like ens3f0, even that also does not work.

dpdk0 is the correct syntax and should work - using ens3f0 is incorrect and
will not work. 

I think you have a version mismatch between OVS and DPDK. I don't necessarily
think that is the root cause of the problem you are seeing but best to eliminate
and work from a more stable point. How about moving to the OVS 2.4 branch and
using DPDK 2.0? 

> 
> What exactly I should use in this case?
> 
> Regards,
> Varun
> 
> -----Original Message-----
> From: Rapelly, Varun
> Sent: Wednesday, June 24, 2015 10:07 AM
> To: 'Daniele Di Proietto'
> Cc: bugs at openvswitch.org
> Subject: RE: [ovs-discuss] No Ethernet devices found with I350
> 
> Hi Daniele,
> 
> Thanks for your reply :)
> 
> I'm using openvswitch-2.3.1 and compiled using below set of commands.
> 
> export DPDK_DIR=/root/dpdk-1.7.1
> cd /root/dpdk-1.7.1
> make install T=x86_64-native-linuxapp-gcc cd /root/openvswitch-2.3.1 export
> DPDK_BUILD=$DPDK_DIR/x86_64-native-linuxapp-gcc/
> ./boot.sh
> ./configure --with-dpdk=$DPDK_BUILD
> make
> 
> I would like to create a OVS bridge by adding ens3f0 & ens3f1 ports to that.
> 
> [root at artha ~]# /root/dpdk-1.7.1/tools/dpdk_nic_bind.py --status Network
> devices using DPDK-compatible driver
> ============================================
> <none>
> Network devices using kernel driver
> ===================================
> 0000:0a:00.0 'I350 Gigabit Network Connection' if=ens3f0 drv=igb unused=
> 0000:0a:00.1 'I350 Gigabit Network Connection' if=ens3f1 drv=igb unused=
> 
>  [root at artha ~]# ifconfig -a|grep flags
> ens3f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
> ens3f1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
> 
> PFA setup.sh script, for all the cmd which I used to run ovs.
> 
> 1. I added "default_hugepagesz=1GB hugepagesz=1G hugepages=1" to the boot
> line and 1 GB huge page created 2. When I bind igb_uio driver [to
> 0000:0a:00.0  & 0000:0a:00.1 ] and then if I run vswitch daemon [--with
> dpdk], Ideally it should detect binded PCI device. Am I right?
> 
> Please let me know if I'm missing something or something is incorrect
> 
> Thanks & Regards,
> Varun
> -----Original Message-----
> From: Daniele Di Proietto [mailto:diproiettod at vmware.com]
> Sent: Tuesday, June 23, 2015 10:16 PM
> To: Rapelly, Varun
> Cc: bugs at openvswitch.org
> Subject: Re: [ovs-discuss] No Ethernet devices found with I350
> 
> The commands you're typing seem correct.
> 
> Which version of OVS are you using? How are you compiling it?
> 
> On 23/06/2015 08:23, "Rapelly, Varun" <vrapelly at sonusnet.com> wrote:
> 
> >Hi All,
> >
> >I¹m a newbie to openvswitch and I followed the below link to install
> >ovs with DPDK on RHEL7 machine.
> >
> >[root at artha ~]# uname -a
> >Linux BL4 3.10.0-123.el7.x86_64 #1 SMP Mon May 5 11:16:57 EDT 2014
> >x86_64
> >x86_64 x86_64 GNU/Linux
> >
> >https://github.com/openvswitch/ovs/blob/master/INSTALL.DPDK.md
> ><https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_openvs
> >wit
> >ch_ovs_blob_master_INSTALL.DPDK.md&d=BQMFAg&c=Sqcl0Ez6M0X8aeM67LKIiDJAX
> >VeA
> >w-YihVMNtXt-uEs&r=SmB5nZacmXNq0gKCC1s_Cw5yUNjxgD4v5kJqZ2uWLlE&m=BELvXwU
> >3yO
> >I7c4Fnird6AUH868juo1h2R4VdS2w87ps&s=d8CFnv-IsbTKEf_5cvZ6JCE-HwaX1qSr-uR
> >NfI
> >C0hWg&e=>
> >
> >When I ran vswitch daemon, it reports following error [I binded igb_uio
> >to the i350 NIC].
> >
> >2015-06-22T18:04:38Z|00003|dpdk|ERR|No Ethernet devices found. Try
> >assigning ports to UIO.
> >2015-06-22T18:04:38Z|00004|dpdk|INFO|Ethernet Device Count: 0
> >
> >Following PCI bind status.
> >
> >[root at artha ~]# ./dpdk-1.7.1/tools/dpdk_nic_bind.py --status
> >
> >Network devices using DPDK-compatible driver
> >============================================
> >0000:0a:00.0 'I350 Gigabit Network Connection' drv=igb_uio unused=
> >
> >Network devices using kernel driver
> >===================================
> >0000:03:00.0 'NetXtreme BCM5719 Gigabit Ethernet PCIe' if=eno1 drv=tg3
> >unused=
> >0000:03:00.1 'NetXtreme BCM5719 Gigabit Ethernet PCIe' if=eno2 drv=tg3
> >unused=
> >0000:03:00.2 'NetXtreme BCM5719 Gigabit Ethernet PCIe' if=eno3 drv=tg3
> >unused=
> >0000:03:00.3 'NetXtreme BCM5719 Gigabit Ethernet PCIe' if=eno4 drv=tg3
> >unused=
> >0000:0a:00.1 'I350 Gigabit Network Connection' if=ens3f1 drv=igb
> >unused=
> >
> >Other network devices
> >=====================
> ><none>
> >
> >Then I created I ovs bridge using below cmd:
> >./ovs-vsctl --no-wait add-br ovs -- set Bridge ovs datapath_type=netdev
> >
> >
> >./ovs-vsctl add-port ovs dpdk0 -- set Interface dpdk0 type=dpdk
> >
> >When I add dpdk port it reports, ³could not open network device dpdk0
> >(Unknown error -19)²
> >
> >Please let me know
> >1.
> >What could be possible reason for not detecting the interface which is
> >binded to igb_uio?
> >2.
> >How to add the port which is binded to igb_uio here?
> >
> >
> >Thanks in advance.
> >
> >Regards,
> >Varun
> >
> >
> 
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