[Microcode Issue] PCIe card not listed after reboot

[JayFang]

After rebooting the os, the PCIe cards are not listed.

But if we upgrade the RPM (microcode_ctl-20220207-1.20220510.1.el9_0.noarch), the issue won't happen again. 

We would like to know what the intel does inside this version of the RPM.

<Description>

After the reboot command, the PCI network card (Intel 10G NIC) is not listed by the command (lspci -t -vv)

The following are the steps

1. Install the OS-AlmaLinux9
2. Insert the PCI network Card (E810-XXV: Intel 10GbE NIC card)
3. Boot up the machine
4. Run the command “lspci -t -vv” → without any issue. It shows the PCI network card normally
5. Run the command “reboot”
6. Run the command “lspci -t -vv” → PCI network card is not listed.
7. Shut down the device.
8. Boot up again by pressing the power button
9. Run the command “lspci -t -vv” → without any issue. It shows the PCI network card normally

<Root cause>

Microcode

After updating RPM (microcode_ctl-20220207-1.20220510.1.el9_0.noarch), the issue had been addressed.

<Environments>

- CPU: Intel Xeon(R) Gold 5317 CPU@ 3.00GHz

- OS: Almalinux(5.14.0-70.13.1.e19_0.x85-64)9.0 (Emerald Puma)

- Intel microcode: microcode_ctl-20220207-1.el9.noarch

- NIC: Intel 10G NIC(E810-XXV)

[Mike_Intel]

Hello JayFang,

Thank you for posting in Intel Ethernet Communities. 

For us to further check the issue, please provide the following details.

1. What is the complete model of your Intel Ethernet controller?
2. Are you using a 3rd party PCIe card or did you design your own PCIe Ethernet controller?
3. Can you provide the link of the microcode that you are using?
4. Can you provide photos of your PCIe network card focusing on the markings for us to validate the units?

If you have questions, please let us know. In case we do not hear from you, we will make a follow up after 3 workings days. Thank you.

Best regards,

Michael L.

Intel® Customer Support

[Mike_Intel]

Hello JayFang,

I hope you're having a wonderful day. I am just sending a soft follow up on the information that we requested for us to further assist you. We will wait for your reply. 

If you have questions, please let us know. In case we do not hear from you, we will make a follow up after 3 workings days. Thank you.

Best regards,

Michael L.

Intel® Customer Support

[Mike_Intel]

Hello JayFang,

I am just sending another follow up on the information that I requested. 

Since we have not heard back from you, I need to close this inquiry. 

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

Thank you and stay safe.

Best regards,

Michael L.

Intel® Customer Support