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Anup_Agarwal's avatar
Anup_Agarwal
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4 years ago
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What do two yellow and two green blinking LEDs on the Intel N3000 PAC mean?

I was trying to install Intel N3000 FPGA PAC on the Supermicro 2029GP-TR server. The FPGA shows 2 yellow and 2 green leds blinking. This behaviour is not described in the manual. The FPGA does not sh...
  • Wincent_Altera's avatar
    Wincent_Altera
    4 years ago

    Hi Anup,

    Thanks for your help.
    I will issue this info immediately to the related team for further procedure.
    It might take approximately 3-4 days due to the weekend.

    What I can help now, is highlighting your urgency on this case
    Will get back to you as soon as possible.

    Regards,
    WeiChuan_C_Intel

Anup_Agarwal's avatar
Anup_Agarwal
Icon for New Contributor rankNew Contributor
4 years ago

LEDs:

Currently both the activity LEDs (for QSFP A, B) blink in green and both the connectivity LEDs blink yellow (see attached image to verify). This is when nothing is connected to the QSFP ports.

Note we have the Intel N3000-N PAC. This does not support 10G configuration and the data sheet never mentions connectivity activity with yellow. Only mentions all 4 leds yellow in case of power/fan issue.

PCIE Enumeration:

We cannot see the accelerator in `lspci | grep -i accel` or `lspci -d :0b30`. The server is brand new, no dust. We ensured server fans are at full speed through IPMI as well as by inspecting server fan noise.

Environment:

We are using Centos 7.9 and linux kernel 4.19. We started with Centos 7.6 compiled linux kernel 4.19 with real-time patch following instructions in the user guide. Somewhere in between a `sudo yum update` caused update from Centos 7.6 to 7.9. We then installed the runtime stack for N3000-N.

I would imagine we should still be able to see the board in lspci irrespective of Centos 7.6 or 7.9. Am I wrong here? If so, I can reinstall Centos 7.6 and ensure we don't update to Centos 7.9.

Data sheet: https://www.intel.com/content/www/us/en/programmable/documentation/dlq1585950463484.html

User guide: https://www.intel.com/content/www/us/en/programmable/documentation/zsf1588015530773.html#kdq1598476785767

  • Wincent_Altera's avatar
    Wincent_Altera
    Icon for Regular Contributor rankRegular Contributor
    4 years ago

    Hi,

    Appreciate you can share with me any printscreen or error code for
    "We cannot see the accelerator in `lspci | grep -i accel` or `lspci -d :0b30"

    Besides, the error printscreen, I might need below item as well to narrow down the further

    1. to check the PCIe enumerate
      $ lspci -vt
    2. to check the FPGA accelerator port status
      $ fpgainfo port
    3. to check PHY status
      $ fpgainfo phy
    4. to check the Mac status
      $ fpgainfo mac
    5. BMC status
      $ fpgainfo bmc

    Looking forward to hear back from you
    Regards,

    WeiChuan_C_Intel

    • Anup_Agarwal's avatar
      Anup_Agarwal
      Icon for New Contributor rankNew Contributor
      4 years ago

      I am not sure what you mean by the error print screen. The system boots without any visible errors. But the N3000-N FPGA PAC does not show up in lspci/fpgainfo commands. The PAC LEDs blink in the fashion described above.

      I have attached dmesg log instead of the error print screen.

      I have also attached the lspci -vt output.

      For all of the fpgainfo XXX commands. The output is the same: "No FPGA resources found."

      The server is the same as in: https://community.intel.com/t5/Programmable-Devices/Is-the-Intel-N3000-FPGA-PAC-compatible-with-Supermicro-SYS/m-p/1319764#M81665

      • Wincent_Altera's avatar
        Wincent_Altera
        Icon for Regular Contributor rankRegular Contributor
        4 years ago

        Hi,

        Since that both are the same server, let me answer your question here to avoid any other confusion.

        • For all of the fpgainfo XXX commands. The output is the same: "No FPGA resources found.
        • You do mention that the Fan is at max speed and no dust between the slot.
        • two yellow/green blinking LEDs
        1. I assume it blinking 1 second inverval right ?
          • When was it happen ?
          • immediately after power on ?
          • or after the OS running for few minute ?
        2. If the LED is blinking interval at 1 second the card is shutdown, either due below reason
          • FPGA core temperature reaches 100 °C
          • Board temperature reaches 100 °C
          • 12 V Auxiliary or 12 V backplane supply voltage is below 10.46 V
            • Make sure you connect the 12V Aux Cable.Note: The Intel FPGA PAC N3000 follows PCIe standards for 150 W add-in cards where maximum current from the 12 V slot power source is 5.5 A (max) and the 12 V Auxilary connector is 6.25 A (max).
              Appreciate if you can double check the power as well.
        3. You mention that you try to put back the Card to another server (Dell) and the error is follow the card
          • Is it the fpgainfo output is the same: "No FPGA resources found”
            follow from Supermicro server to Dell server as well?
            **             this information is important for me to identify next debug step

        Looking forward to hear back from you

        Regards,

        WeiChuan_C_Intel