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openstack-dpdk installation


Hi Sean



I did not prefer the vendor distro. I installed the native ocata release
from scrath which i configured on myself.


I downloaded dpdk relase from source and compiled it and also binded the
interface with dpdk through ovs.

While i was installing the neutron-ovs-agent, i couldnt start ovs db with
neutron-ovs. Neutron ovs config files is not working with compiled ovs. How
can i do that?

Thank you for helping




On Sun, 9 Feb 2020, 19:56 Sean Mooney, <smooney at redhat.com> wrote:

> On Sun, 2020-02-09 at 01:09 +0300, mesut aygün wrote:
> > Hey,
> >
> > I am working over dpdk installation with openstack ocata release.
> > How can I use the neutron-openvswitch-agent-dpdk or anything else
> instead
> > of  neutron-openvswitch-agent?
> in octa you can use the standared neutorn openvswitch agent with ovs-dpdk
> the only config option you need to set is [ovs]/datapath_type=netdev in
> the ml2_conf.ini on each of the compute nodes.
>
>
>
> https://github.com/openstack/neutron/blob/9aa9a097e6c9f765a59eb572a5a816169d83f2cd/neutron/conf/plugins/ml2/drivers/ovs_conf.py#L107-L112
>
> addtionally when installing ovs you need to configure it for dpdk.
> most distros now compile in support for dpdk into ovs so all you have to
> do to use it is configure it rahter then
> recompile ovs or install an addtional package.
>
> there is some upstream docs on how to do that here
> http://docs.openvswitch.org/en/latest/intro/install/dpdk/
>
> the clip note version is you need to allcoated hugepages on the host for
> ovs-dpdk to use and addtional hugepages for
> your vms. then you need to bind the nic you intend to use with dpdk to the
> vfio-pci driver.
> next you need to define some config options to test ovs about that and
> what cores dpdk should use.
>
>         sudo ovs-vsctl --no-wait set Open_vSwitch .
> other_config:pmd-cpu-mask=$OVS_PMD_CORE_MASK other_config:dpdk-
> init=True other_config:dpdk-lcore-mask=$OVS_CORE_MASK \
>         other_config:dpdk-mem-channels=4
> other_config:dpdk-socket-mem=$OVS_SOCKET_MEM other_config:dpdk-hugepage-
> dir=$OVS_HUGEPAGE_MOUNT  \
>         other_config:dpdk-extra=" --proc-type primary $pciAddressWhitelist
> "
>         [ -n "$OVS_VHOST_USER_SOCKET_DIR" ] && sudo ovs-vsctl --no-wait
> set Open_vSwitch . other_config:vhost-sock-
> dir=$OVS_VHOST_USER_SOCKET_DIR
>
> finally when you create the ovs bridges you need to set them to ues the
> netdev datapath although neutron will also do
> this its just a good habit to do it when first creating them once done you
> can add the physical nics to the br-ex or
> your provider bridge as type dpdk.
>
> ovs-vsctl --may-exist add-port $bridge $nic -- set Interface $nic
> type=dpdk options:dpdk-devargs=$addr
>
> with all that said that is how you install this manually if you are
> compiling form source.
> i would recomend looking at your openstack installer of choice to see if
> they have support or your disto vendors
> documentation as many installers have native support for ovs-dpdk and will
> automate it for you.
>
> >
> > Which can I choose the correct packages with os dpdk versions?
> >
> >
> >
> > I couldn't use the devstack versions!!
> >
> > Best regards
>
>
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