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CHung's avatar
CHung
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

AN881 reference design need to be upgraded for device 1SM21CH.

Hi, ​ The following reference design is based on 1SM21BH device. https://fpgacloud.intel.com/devstore/platform/19.1.0/Pro/an881-pcie-avmm-dma-gen3x16-ddr4-and-hbm2/ ​ We use Stratix 10 MX 1SM21C...
BoonT_Intel's avatar
BoonT_Intel
Icon for Frequent Contributor rankFrequent Contributor
6 years ago

Hi I agree that even driver is not install successful, it still able to detect by the host as unknown device. So now we can rule out the driver issue.

Suggestion:

  1. is it possible to borrow the BHU variant board from field team and test it with original AN881 design using the same linux host? The reason is to rule out is issue is due to variant or the particular host actually unable to detect any FPGA gen3 card.
  2. What is the slot PCIe capability? Have you tried go into the bios and fix the PCIe slot setting to Gen3x16? In some host, it will create some problem to detect when the setting is AUTO.
  • CHung's avatar
    CHung
    Icon for Occasional Contributor rankOccasional Contributor
    6 years ago

    Hi,

    ​

    1. We'll try it.

    2. After confirmation, the slot PCIe capability is gen3 x16.

    We do the experiments on different computers with different CPUs, motherboards, and OS (CentOS 7.0 and Ubuntu 16).

    The result is the same.

    Besides, we have made sure the PCIe slot works well by changing PCIe cards.

    When we plugged-in other PCIe cards like nVidia graphic card,

    "lspci" command could show PCIe device.

  • CHung's avatar
    CHung
    Icon for Occasional Contributor rankOccasional Contributor
    6 years ago

    Hi,

    ​

    Another question, is the pin assignment of 1SM21BHU the same with 1SM21CHU device?

    ​Currently all the user guides and documents are based on 1SM21BHU.

    We don't know whether there is difference except HBM2 size.

  • CHung's avatar
    CHung
    Icon for Occasional Contributor rankOccasional Contributor
    6 years ago

    Hi,

    ​

    We have borrowed a BHU variant board today.

    After programming SOF of AN881 reference design (originally based on 1SM21BHU) and BTS PCIe image,

    Linux still couldn't recognize it by lspci command.

    We also tried 2 hosts, one of them is CentOS 7.0 and the other is Ubuntu 16, both got the same result.

    Besides, we tried different PCIe slots on the motherboard.

    ​

    ​If on your side, Linux could recognize the BHU board, could you provide your Linux version (include kernel version), installation files, and your sof?

    I heard that some Linux kernels don't accept PCI devices which is not certificated. Perhaps lspci command won't list the unacceptable devices. But I didn't know the detail.

    Is that possible it's Linux version related issue?

    Thanks.

  • CChen361's avatar
    CChen361
    Icon for New Contributor rankNew Contributor
    6 years ago

    Hi Intel,

    Did you ever test your so called reference design before release?

    S10 Hard IP+ for PCIE, gen 3 x 16 still can't work on DK-DEV-1SMC-H-A(HBM 16GB version) after 4 weeks hard working.

    For your information, AN881 can't work on DK-DEV-1SMX-H-A(HBM 8GB version) either, no matter compiled with v19.1 or v19.3 tested by agent.

    ​

    Please clarify in what conditions Intel Dev Board + Intel Ref Design can work !

    We had good experience with CV, but we are un-happy to be Intel Test Engineer now.

    ​

    Or, maybe I should return the kit back to Intel and get my money back.