x710-DA1 SR-IOV problems

[vakhtang]

Hello. I am using sr-iov NIC virtualization for virtual machines. If you forward one virtual network interface to a virtual machine, then everything works well, but if you forward two network interfaces, then access to the second network interface is performed with packet losses and delays.

ping -D 192.168.1.10
PING 192.168.1.10 (192.168.1.10) 56 (84) bytes of data.
[1610476258.277755] 64 bytes from 192.168.1.10: icmp_seq = 1 ttl = 62 time = 2043 ms
[1610476258.277788] 64 bytes from 192.168.1.10: icmp_seq = 2 ttl = 62 time = 1024 ms
[1610476258.277800] 64 bytes from 192.168.1.10: icmp_seq = 3 ttl = 62 time = 0.285 ms
[1610476262.373741] 64 bytes from 192.168.1.10: icmp_seq = 4 ttl = 62 time = 3072 ms
[1610476262.373776] 64 bytes from 192.168.1.10: icmp_seq = 5 ttl = 62 time = 2048 ms
[1610476262.373789] 64 bytes from 192.168.1.10: icmp_seq = 6 ttl = 62 time = 1024 ms
[1610476262.373800] 64 bytes from 192.168.1.10: icmp_seq = 7 ttl = 62 time = 0.279 ms
[1610476266.469743] 64 bytes from 192.168.1.10: icmp_seq = 8 ttl = 62 time = 3072 ms
[1610476266.469779] 64 bytes from 192.168.1.10: icmp_seq = 9 ttl = 62 time = 2048 ms
[1610476266.469791] 64 bytes from 192.168.1.10: icmp_seq = 10 ttl = 62 time = 1024 ms
[1610476266.469803] 64 bytes from 192.168.1.10: icmp_seq = 11 ttl = 62 time = 0.284 ms
^ C
--- 192.168.1.10 ping statistics ---
12 packets transmitted, 11 received, 8.33333% packet loss, time 11259ms
rtt min / avg / max / mdev = 0.279 / 1396.179 / 3072.253 / 1093.287 ms, pipe 4

Pay attention to the timestamps, replies come every 4 seconds and there is a loss

I tried different versions of drivers, at the moment the version is like this:
ethtool -i ens2f0
driver: i40e
version: 2.14.13
firmware-version: 10.53.7

Please tell me what could be the problem?

[AlfredoS_Intel]

Hi Vakhtang, 

Thank you for posting in our Intel® Ethernet Communities Page.

We are sorry to hear about the issue that you are experiencing with your network adapter. 

To better assist you, we need to get some logs from your system. It will tell us the different driver version and components installed on your system. We would like to ask your help to provide System Support Utility Logs (SSU) from your system. You may download the software from this page, https://downloadcenter.intel.com/product/91600/Intel-System-Support-Utility. Please download the software which is applicable to the Operating system that you are running on your system. Once you have downloaded it, kindly run it and you will have the option to save the logs to a text file. Please attach the text file on your reply to this email.

We look forward to hearing from you. If we do not get your reply, we will follow up after 3 business days.

Best Regards,

Alfred S

Intel Customer Support

[AlfredoS_Intel]

Hi Vakhtang,

We are just following up.

It looks like you need more time to provide the information that we asked.

We will follow up again after 3 business days. Should we not hear from you, our system may automatically close the thread.

Best Regards,

Alfred S

Intel Customer Support

[AlfredoS_Intel]

Hi Vakhtang, 

We need to close this thread since we have not gotten a response from you: maybe because you are busy or preoccupied at the moment. We know that this is important for you to get it resolved and it is also equally important for us to give you the right solution; as much as we would like to assist you, we need to close it to attend to other customers. We hope for your consideration and understanding on this one.

If you need any additional information, please submit a new question as this thread will no longer being monitored.

Thank you for contacting Intel® and have a great week!

Best Regards,

Alfred S

Intel® Customer Support