Install dependencies

	apt-get update
	apt-get install meson

Compile DPDK

	cd dpdk
	meson build
	cd build
	ninja
	ninja install
	ldconfig

Load the vfio-pci driver :

	modprobe uio
	modprobe uio_pci_generic

Use the tool dpdk-devbind.py to bind the VirtIO NICs to the uio_pci_generic driver. (Find out how to do this, the tool is self-explanatory.)

	cd [root_repo]
	dpdk/usertools/dpdk-devbind.py --h

Setup hugetlbfs huge pages for DPDK

	mkdir /mnt/huge
	mount -t hugetlbfs nodev /mnt/huge

Statically allocate 256 2MB huge pages

	echo 256 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages

This example project comes with a CMakeFile and a simple wrapper that initializes DPDK for you. Run the following steps to build the router app

	cd [root_repo]
	cmake .
	make

That's all!

For this project, we use DPDK 20.11 (LTS). The comprehensive DPDK documentation can be found at:

• HTML guides
• HTML API

Installing/Compiling gtest is no longer necessary, VM contains compiled library.

add recv_from_device() utility function

The virtual switch behaves different from real hardware. It sets rx = tx queues with automatic load balancing (even when not configured). The recv_from_device() function fixes this issue by receiving from all available queues.