Issues with second physical interface on 2P X710 using SR-IOV

[PLamb5]

Hi,

I am seeing some issues with SR-IOV on 2P X710s.

When using the second Physical port, I am not seeing traffic being balanced across the 4 Tx/Rx queues when running NVM 6.80 or later.

This issue wasn't present on 4.53 to my recollection, however it isn't possible to downgrade to validate this. I am in the process of trying to locate some cards with an appropriate NVM for this, but in the mean time, has anyone experienced the same issues?

So all traffic on Port1 is balanced across the 4 queues, allowing me to set cpu affinity in my VM and handle much higher load than with Port2, which appears to put everything on the first queue.

I have tried various ESXi driver versions, from 1.7 to 1.9.5 and see the same behaviour regardless of driver version.

Looking for some guidance!

Thanks,

Paul

[Caguicla_Intel]

Hello Paul,

Good day!

Please be informed that we will close this request after 1 business day since we haven't received any response from our previous follow ups. In case you wish to continue working on this request, kindly provide the information below as requested from our Firmware team.

1.) Which modules and speed do you use?

2.) Is there any VM with specific OS under ESXi?

3.) Was the performance test done on the VM?

If you may have any other inquiry in the future, just feel free to post a new question.

Best regards,

Crisselle C

Intel® Customer Support

[Caguicla_Intel]

Hello Paul,

How are you today?

We have received your reply asking if we could discuss this issue outside public forum. We will be sending an email to continue with this issue as per your request, kindly give us an update once received.

Awaiting to your reply.

In case we don't hear from you, we will follow up after 3 business days.

Best regards,

Crisselle C

Intel® Customer Support

[AlfredoS_Intel]

Hi Plamb5,

Thank you for waiting for our update.

Our engineers are already preparing the version of the FW for FVL 8.0 which works well with the balancing of traffic.

Debug is still in progress.

We will provide you with any developments no later than 3 business days from now.

Best Regards,

Alfred S

Intel® Customer Support

[Mike_Intel]

Hello Paul,

We hope that you are having a good day.

We just want up update you that We have a theory on what the issue is. The problem currently is that we cannot reproduce the issue in current test environment. However, we are still working on this.

Please stay patient and we will try to provide an update after 2 to 4 working days.

Best regards,

Michael L.

Intel® Customer Support