Open Stack

Hey Rodolfo,

That was our understanding as well. I guess our thinking is more related to
if the i40evf driver is present on a compute that is providing a PF/VF to a
VM, could that create a conflict at some point? The VM will use it's own
Kernel with it's own version of i40evf but the compute providing the SRIOV
PF is also loaded with i40evf + i40e.

Just looking at understanding the expected deployment scenario.

Thanks!

On Fri, Jul 9, 2021 at 3:37 AM Rodolfo Alonso Hernandez <ralonsoh at redhat.com>
wrote:

> Hello Laurent:
>
> The i40evf is the guest driver when using VFs from a Fortville NIC. The
> i40e is the host driver that controls the PF and provides the VFs for the
> guests.
>
> Without the i40evf, the virtual machine cannot use the device provided.
>
> Both drivers have different goals.
>
> Regards.
>
> On Fri, Jul 9, 2021 at 12:58 AM Laurent Dumont <laurentfdumont at gmail.com>
> wrote:
>
>> Hey everyone,
>>
>> We are troubleshooting some weirdness with X710 Intel cards and i40evf.
>> Looking around, it seems that most vendors recommend disabling the i40evf
>> driver from the compute side (and keeping the i40e driver).
>>
>> Is anyone aware of any funkiness if both the i40e driver and the i40evf
>> driver is present on computes running VMs with SRIOV ports.
>>
>> Thanks!
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-discuss/attachments/20210709/d6c917c6/attachment.html>