Forum Discussion

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,

​

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.