k13132 / openwrt-dpdk

Data Plane Development Kit (DPDK) integration into OpenWrt

Data Plane Development Kit (DPDK) integration into OpenWrt

This repository contains all necessary packages for the compilation of DPDK on OpenWrt. CPU architectures x86_64 and aarch64 are supported.

Packages are assembled by information from https://doc.dpdk.org/guides/howto/openwrt.html.

Repository packages

• dpdk - Data Plane Development Kit main package; package contains:
  • libdpdk - DPDK librarioes
  • dpdk-tools - DPDK tools
• kmod-iommu_v2 (this pkg required for 21.02, 22.03) - kernel-modules support of IOMMU for INTEL/AMD processors; package produces iommu_v2.ko
• kmod-vfio (this pkg required for 21.02, 22.03) - kernel-modules support of Virtual Function I/O for PCI interfaces; package produces - vfio.ko, vfio-pci.ko, vfio_iommu_type1.ko, vfio_virqfd.ko
• numactl (required) - Simple NUMA policy support package

OpenWrt 23 and newer has kmod-iommu_v2 and kmod-vfio directly in menuconfig.

Compilation & Installation

Requirements

• Compilation can be done on OpenWrt 21.02, 22.03 and 23.05.

OpenWrt build configuration

Make a system from sources. Use branches 21.02, 22.03 or 23.05.

Add this repo to OpenWrt feed.conf

echo "src-git dpdk_repo https://github.com/k13132/openwrt-dpdk" >> feeds.conf

Update OpenWrt package feeds

./scripts/feeds update dpdk_repo
./scripts/feeds install -a -p dpdk_repo

Use/select libdpdk, dpdk-tools packages

• Select platform for AARCH64 - https://doc.dpdk.org/guides/linux_gsg/cross_build_dpdk_for_arm64.html#supported-soc-configuration
• Select cpu_instruction_set for x86_64 - https://doc.dpdk.org/guides/linux_gsg/build_dpdk.html
• Select network drivers - https://doc.dpdk.org/guides/nics/overview.html

make menuconfig

Compile DPDK packages

make package/dpdk/compile -j$((`nproc`+1))