HiFive Unmatched install XDMA driver

Hi all,
we are connecting an xilinx FPGA device through PCIe connector on Hifive Sifive Unmatched Board, but not found the xilinx PCI device, I tried the following, but it didn’t solve the problem:

  1. Warm boot the motherboard.
  2. Rescan PCIe devices
    At the same time, my x86 linux host can recognize the device, do you have some solution for this? thank you for your reply.