OVS is a standard component of OpenStack. I am not sure I would say OVS is fundamental: Juniper Contrail is probably more DEPLOYED in real NFV architectures. Very large deployments need OpenStack Distributed Virtual Routing (https://wiki.openstack.org/wiki/Neutron/DVR) which is not using OVS because of its Layer 2 nature. The same applies to IPSec termination: OpenStack VPNaaS (https://wiki.openstack.org/wiki/Neutron/VPNaaS).
OVS is fundamental for marketing benchmarking today. Furthermore when you accelerate with OVS with userland frameworks (ODP or DPDK): - you loose the muti-tenant capabilities of OpenStack. - OVS features has to be almost entirely rewritten in the userland framework LNG is working on integrating VPP and ODP and plan to leverage P4 (which supersedes OpenFlow) capable hardware. FF On 20 November 2016 at 08:37, Yehuda Yitschak <yehu...@marvell.com> wrote: > Hi Francois > > > From: Francois Ozog [mailto:francois.o...@linaro.org] > > Sent: Wednesday, November 16, 2016 13:42 > > To: Christophe Milard > > Cc: Yehuda Yitschak; Shadi Ammouri; lng-odp@lists.linaro.org > > Subject: Re: [lng-odp] virtio and vhost support in ODP > > > > If I may complement Christophe answer: > > > > the target is to have ODP being able to leverage virtio-net in the VM > directly. Today, ODP can make use of virtio-net in a VM through DPDK packet > io using ODP-DPDK. > > > > Accessing virtio-net device directly from ODP require both a device > framework and a driver framework which we are working on. > > > > On the host side, we do not plan to do anything yet because it indrectly > means building OVS-ODP which may not happen at all. > > Just curious... Why may that not happen ? > Today, OVS seems like a fundamental building block of network > virtualization systems. > I know there was an initial initiative of OVS-ODP but it seems to be > inactive for a while > > Thanks > > Yehuda > > > > > That said, we started to work on VPP on top of ODP. At some point in > time, VPP may be a first class citizen of OpenStack and then we will be > implementing vhost-user. > > > > Cordially, > > > > FF > > On 15 November 2016 at 08:23, Christophe Milard < > christophe.mil...@linaro.org> wrote: > On 15 November 2016 at 06:46, Yehuda Yitschak <yehu...@marvell.com> wrote: > > Hi Christophe > > > > Sorry for the extremely late response. things got lost in my e-mail. > > > > I'll try to clarify my question. Hope I'm not repeating the obvious :-) > > > > Virtio network implementation has 2 sides: > > - The driver side: used by the VM, a.k.a frontend or simply > virtio-net > > - The device side: (a.k.a backend) implemented in 3 different > ways today: > > - inside QEMU. > > - inside the kernel (a.k.a vhost-net) > > - inside user-space and attached to DPDK or OVS (a.k.a > vhost-user) > > > > For ODP, both virtio-net and vhost-user can be useful. > > - vhost-net, for running ODP inside a VM and accelerating the > traffic to the virtio NIC > > - vhost-user for running ODP in the hypervisor and intercepting the > VM's traffic directly into hypervisor's user-space. > > > > I was wondering which of the 2 you are implementing > > The target is: > The driver side: virtio-net > > Christophe > > > > Thanks > > > > Yehuda > > > > > >> -----Original Message----- > >> From: Christophe Milard [mailto:christophe.mil...@linaro.org] > >> Sent: Wednesday, October 26, 2016 17:35 > >> To: Yehuda Yitschak > >> Cc: Shadi Ammouri; Mike Holmes > >> Subject: Re: [lng-odp] virtio and vhost support in ODP > >> > >> Not sure I understand your question: > >> I am just aiming at a simple virtio driver to start with. To run over > Qemu. > >> I though Qemu's backend is qemu's problem :-). > >> > >> Hope that does answer your question. If not, please tell me. I could > >> definitively be the one missing something! > >> > >> Christophe > >> > >> On 26 October 2016 at 15:56, Yehuda Yitschak <yehu...@marvell.com> > >> wrote: > >> > Hi Christophe > >> > > >> > Thanks for sharing the information. It's good to know ODP is taking > >> > this direction > >> > > >> > Just wondering what is planned approach for virtio. > >> > Are you going to port vhost-user for ODP or do you plan to use a > >> > different method > >> > > >> > Thanks a lot > >> > > >> > Yehuda > >> > > >> >> -----Original Message----- > >> >> From: Christophe Milard [mailto:christophe.mil...@linaro.org] > >> >> Sent: Wednesday, October 26, 2016 14:23 > >> >> To: Yehuda Yitschak > >> >> Cc: lng-odp@lists.linaro.org; santosh.shu...@linaro.org; Shadi > >> >> Ammouri; Mike Holmes > >> >> Subject: Re: [lng-odp] virtio and vhost support in ODP > >> >> > >> >> Hi, > >> >> > >> >> ODP is currentley weak when it comes to drivers, sadly. > >> >> The way to go right now is to use the ODP-DPDK implementation, so one > >> >> could use the functionnality available there. > >> >> > >> >> But I am trying to change that: I am right now trying to define a > >> >> south interface to witch driver could connect to. This would be > >> >> virtio and pci to start with. > >> >> You are welcome to join the effort ( and linaro :-) ) . My works is a > >> >> bit slow, as my group is made of me ... :-) > >> >> > >> >> Christophe > >> >> > >> >> > >> >> On 25 October 2016 at 16:11, Yehuda Yitschak <yehu...@marvell.com> > >> >> wrote: > >> >> > Hello everyone > >> >> > > >> >> > > >> >> > i have a project where i need to connect a virtio driver running on > >> >> > a VM to > >> >> ODP running on the host (hypervisor). > >> >> > > >> >> > basically i need to connect a virtio backend to ODP so all the > >> >> > packets sent by the guest are received by ODP > >> >> > > >> >> > > >> >> > I wanted to ask if a similar solution already exists or has been > >> >> > attempted in the past > >> >> > > >> >> > > >> >> > i know there is such a solution for DPDK called vhost-user > >> >> > > >> >> > http://dpdk.org/doc/guides/sample_app_ug/vhost.html > >> >> > > >> >> > > >> >> > i was wondering if a port for ODP also exists > >> >> > > >> >> > > >> >> > Appreciate your inputs > >> >> > > >> >> > > >> >> > Thanks > >> >> > > >> >> > > >> >> > Yehuda > > > > > -- > > François-Frédéric Ozog | Director Linaro Networking Group > T: +33.67221.6485 > francois.o...@linaro.org | Skype: ffozog > > > -- [image: Linaro] <http://www.linaro.org/> François-Frédéric Ozog | *Director Linaro Networking Group* T: +33.67221.6485 francois.o...@linaro.org | Skype: ffozog
