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:[email protected]] Sent: Thursday, March 23, 2017 1:04 PM To: Chandran, Sugesh <[email protected]> Cc: [email protected] 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 <[email protected]<mailto:[email protected]>> wrote: Regards _Sugesh From: Shivaram Mysore [mailto:[email protected]<mailto:[email protected]>] Sent: Thursday, March 23, 2017 12:56 PM To: Chandran, Sugesh <[email protected]<mailto:[email protected]>> Cc: [email protected]<mailto:[email protected]> 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 <[email protected]<mailto:[email protected]>> wrote: Regards _Sugesh From: [email protected]<mailto:[email protected]> [mailto:[email protected]<mailto:[email protected]>] On Behalf Of Shivaram Mysore Sent: Thursday, March 23, 2017 10:54 AM To: [email protected]<mailto:[email protected]> 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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