On 7 March 2016 at 20:16, Martinx - ジェームズ <thiagocmarti...@gmail.com> wrote:
> On 7 March 2016 at 17:28, Martinx - ジェームズ <thiagocmarti...@gmail.com> > wrote: > >> On 7 March 2016 at 16:40, Martinx - ジェームズ <thiagocmarti...@gmail.com> >> wrote: >> >>> Hey guys, >>> >>> I'm trying to create two OVS bridges powered by DPDK, on Xenial, but >>> I'm facing problems... >>> >>> First, there is no documentation about how to do this... So far, I >>> found the following: >>> >>> >>> - This link doesn't how to bind real NIC: >>> >>> https://software.intel.com/en-us/articles/using-open-vswitch-with-dpdk-on-ubuntu >>> >>> - This one isn't specific to Ubuntu OVS + DPDK packages: >>> https://github.com/openvswitch/ovs/blob/master/INSTALL.DPDK.md >>> >>> - Similar with above but, very old... Also not related to Ubuntu >>> packages: >>> https://feiskyer.github.io/2015/03/01/open-vswitch-over-dpdk-on-ubuntu/ >>> >>> >>> So, to begin with, I start with Intel.com guide, it worked! But without >>> real NIC. >>> >>> Then, I tried to bind it to real NIC, like this: >>> >>> Added two NIC PCI id to "/etc/dpdk/interfaces" file: >>> >>> --- >>> pci 0000:01:00.0 uio-pci-generic >>> pci 0000:01:00.1 uio-pci-generic >>> --- >>> >>> Then, reboot, I can see both NICs using "DPDK-compatible driver" by >>> running: "dpdk_nic_bind --status". >>> >>> Trying to create new OVS Bridges with DPDK devices, failing: >>> >>> --- >>> root@xenial-1:~# ovs-vsctl add-br ovsbr0 >>> root@xenial-1:~# ovs-vsctl set bridge ovsbr0 datapath_type=netdev >>> root@xenial-1:~# ovs-vsctl add-port ovsbr0 dpdk0 -- set Interface dpdk0 >>> type=dpdk >>> ovs-vsctl: Error detected while setting up 'dpdk0'. See ovs-vswitchd >>> log for details. >>> --- >>> >>> Log shows: >>> >>> --- >>> 2016-03-07T19:34:07.532Z|00136|bridge|WARN|could not open network device >>> dpdk0 (No such device) >>> --- >>> >>> --- >>> root@xenial-1:~# ovs-vsctl show >>> 2b84f2f7-6d3f-4d51-94a5-fe6d04f0a062 >>> Bridge "ovsbr0" >>> Port "ovsbr0" >>> Interface "ovsbr0" >>> type: internal >>> Port "dpdk0" >>> Interface "dpdk0" >>> type: dpdk >>> error: "could not open network device dpdk0 (No such >>> device)" >>> ovs_version: "2.5.0" >>> --- >>> >>> What am I missing? >>> >>> I tried to use real NIC device name "em1", instead of "dpdk0", same >>> results... Since "em1" does not even shows up on "ip link" list... DPDK >>> toke it over... >>> >>> Thanks! >>> Thiago >>> >> >> Guys, >> >> I am also trying this: >> >> Added two NIC PCI id to "/etc/dpdk/interfaces" file: >> >> --- >> pci 0000:01:00.0 vfio-pci >> pci 0000:01:00.1 vfio-pci >> --- >> >> According to: >> https://github.com/openvswitch/ovs/blob/master/INSTALL.DPDK.md - but, it >> also doesn't work... >> >> When using "vfio-pci", the NIC doesn't even show up as a DPDK-compatible >> driver after running: "dpdk_nic_bind --status"... >> >> So, how to use "vfio-pci" with Ubuntu DPDK? >> >> Cheers! >> Thiago >> > > After reading INSTALL.DPDK.md again, I realized that it only works with > VFIO or IGB (UIO), Ubuntu DPDK package does not provides the "igb_uio" > module, neither via DKMS. So, the only option is VFIO, right? > > And, I am unable to use "vfio-pci" configured inside of > "/etc/dpdk/interfaces" but, I managed to make it work manually. > > I just filled a bug report against DPDK Ubuntu package related to this > "vfio-pci" problem: > > --- > Usege of vfio-pci module via /etc/dpdk/interfaces doesn't work: > https://bugs.launchpad.net/ubuntu/+source/dpdk/+bug/1554214 > --- > > So, after workaround the bug #1554214 (bug description have the > instructions), I tried OpenvSwitch with DPDK + 10G NIC, again, still no > success. > > Same problem... > > * DPDK using VFIO: > > --- > root@xenial-1:~# dpdk_nic_bind --status > > Network devices using DPDK-compatible driver > ============================================ > 0000:01:00.0 'NetXtreme II BCM57800 1/10 Gigabit Ethernet' drv=vfio-pci > unused=bnx2x > 0000:01:00.1 'NetXtreme II BCM57800 1/10 Gigabit Ethernet' drv=vfio-pci > unused=bnx2x > --- > > * OpenvSwitch with DPDK still failing: > > --- > service openvswitch-switch stop > service openvswitch-switch start > > ps xfa | grep dpdk # I can see "ovs-vswit... --dpdk -c 0x3 -n 4 -- ...." > running... > > > root@xenial-1:~# ovs-vsctl add-br br0 -- set bridge br0 > datapath_type=netdev > root@xenial-1:~# ovs-vsctl add-port br0 dpdk0 -- set Interface dpdk0 > type=dpdk > ovs-vsctl: Error detected while setting up 'dpdk0'. See ovs-vswitchd log > for details. > --- > > No luck... I can't wait to see it working in my lab! > > Ubuntu rocks! Almost there... :-D > > Best, > Thiago > Hey guys, I just found a minor issue with openvswitch-switch Init Script: * Script "/etc/init.d/openvswitch-switch restart" ignores "DPDK_OPTS", while "service openvswitch-switch restart" works! https://bugs.launchpad.net/ubuntu/+source/openvswitch-dpdk/+bug/1554275 - Thiago
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