Forum Discussion

ahaa's avatar
ahaa
Icon for Occasional Contributor rankOccasional Contributor
4 years ago

How to make N3000 support jumbo frames?

We want to change the configuration of N3000-2/N3000-1 to make the card support jumbo frames（larger than the default size 1518B，1519B-9000B）. Now we have tried to modify application of dpdk such as s...
ahaa's avatar
ahaa
Icon for Occasional Contributor rankOccasional Contributor
4 years ago

The matter is that if I revert back to OPAE and set the MTU size again, the MTU of XL710 would be returned to the default value 1500 even though we set it to 9600 after bounding to vfio-pci driver in the mode of DPDK

  • JonWay_C_Intel's avatar
    JonWay_C_Intel
    Icon for Frequent Contributor rankFrequent Contributor
    4 years ago

    How do you set the MTU of the XL710? What is the command?

    • ahaa's avatar
      ahaa
      Icon for Occasional Contributor rankOccasional Contributor
      4 years ago

      ls -la /sys/class/net

      sudo ip link set dev enp61s0f0 mtu 9600
      sudo ip link set dev enp61s0f1 mtu 9600
      sudo ip link set dev enp64s0f0 mtu 9600
      sudo ip link set dev enp64s0f1 mtu 9600
      ip link show enp61s0f0
      ip link show enp61s0f1
      ip link show enp64s0f0
      ip link show enp64s0f1
      sudo fpgadiag -b 0b3f -m fpgamac --side=host --mtu

      then bound to dpdk

    • ahaa's avatar
      ahaa
      Icon for Occasional Contributor rankOccasional Contributor
      4 years ago

      another problem is that I cannot check mtu size after bounding to dpdk