[ovs-discuss] OVS DPDK and VFIO/UIO

[Shivaram Mysore]

Thanks Sugesh.  This is excellent info and very useful for me to
understand.  Much appreciated.

Regards

/Shivaram

On Fri, Mar 24, 2017 at 9:23 AM, Chandran, Sugesh <sugesh.chandran at intel.com
> wrote:

> Please see the link below for difference between VFIO and UIO drivers in
> DPDK
>
>
>
> http://dpdk-guide.gitlab.io/dpdk-guide/setup/binding.html
>
>
>
>
>
> *Regards*
>
> *_Sugesh*
>
>
>
> *From:* Shivaram Mysore [mailto:shivaram.mysore at gmail.com]
> *Sent:* Thursday, March 23, 2017 1:04 PM
>
> *To:* Chandran, Sugesh <sugesh.chandran at intel.com>
> *Cc:* ovs-discuss at openvswitch.org
> *Subject:* Re: [ovs-discuss] OVS DPDK and VFIO/UIO
>
>
>
> Nope.  I meant OVS as the switching fabric for a virtualized
> infrastructure - need VFIO
>
>
>
> If using OVS as a hardware switch (server with NICS where clients are
> connected to raw ethernet ports for switching), then UIO is the way to go.
> --> this is my assertion needing validation.
>
>
>
> Thanks
>
>
>
> On Thu, Mar 23, 2017 at 12:59 PM, Chandran, Sugesh <
> sugesh.chandran at intel.com> wrote:
>
>
>
>
>
> *Regards*
>
> *_Sugesh*
>
>
>
> *From:* Shivaram Mysore [mailto:shivaram.mysore at gmail.com]
> *Sent:* Thursday, March 23, 2017 12:56 PM
> *To:* Chandran, Sugesh <sugesh.chandran at intel.com>
> *Cc:* ovs-discuss at openvswitch.org
> *Subject:* Re: [ovs-discuss] OVS DPDK and VFIO/UIO
>
>
>
> Thanks Sugesh.
>
>
>
> Is VFIO required only when we have a virtualized infrastructure?
>
> *[Sugesh] Do you mean running OVS-DPDK inside VM/Connecting VMs to the
> OVS-DPDK?In either case,  you need only uio driver.*
>
>
>
>
>
> Thanks
>
>
>
> On Thu, Mar 23, 2017 at 12:52 PM, Chandran, Sugesh <
> sugesh.chandran at intel.com> wrote:
>
>
>
>
>
> *Regards*
>
> *_Sugesh*
>
>
>
> *From:* ovs-discuss-bounces at openvswitch.org [mailto:ovs-discuss-bounces@
> openvswitch.org] *On Behalf Of *Shivaram Mysore
> *Sent:* Thursday, March 23, 2017 10:54 AM
> *To:* ovs-discuss at openvswitch.org
> *Subject:* [ovs-discuss] OVS DPDK and VFIO/UIO
>
>
>
> Hello,
>
>
>
> If one is setting up a OVS Switch with DPDK on a Intel Server with Intel
> NICs on Ubuntu 16.10, they could just use the UIO drivers right?  Do they
> don't need VFIO configuration [1] correct?  Assume that they Intel Server
> here is mainly acting as a hardware soft-switch is not running any
> virtualization.
>
>
>
> Am I correct in my understanding?
>
>
>
> [1] http://docs.openvswitch.org/en/latest/intro/install/dpdk/
>
> *[Sugesh] Yes, You can use the only UIO drivers to make it work*
>
>
>
>
>
> Thanks
>
>
>
> /Shivaram
>
>
>
>
>
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