This framework integrates the VitisNetP4 with Xilinx's OpenNIC shell. This framework will utilize Xilinx's VitisNetP4 compiler to compile the P4 codes into hardware IP. This hardware IP will then be instantiated as a box_plugin for the OpenNIC shell.
In addition, we provide three examples to demonstrate the usage of this framework.
Note: Use git submodule update --init to update the submodule open-nic shell
We provide three examples: forward, calc and advCalc. These examples are all inherited from VitisNetP4 Examples.
Make sure your Vivado version is 2021.2. Or you can modify the version in the Makefile. However, this may raise other IP version issues.
Make sure you have sdnet_p4 and Tcam licenses available for your Vivado.
Run source $(YOUR_VIVADO_ROOT)/Vivado/2021.2/bin/settings64.sh and make sure your Vivado is runnable by vivado -version
Run make forward or make calc or make advCalc to build the examples.
You can set arguments impl=0 synth_ip=0 post_impl=0 to only create the design but not build it.
The generated bitstreams can either be programmed through PCIe bus or JTAG.
Use argument qspi_support=0 to enable JTAG programming and qspi_support=1 for PCIe programming. The default is qspi_support=1.
Use templatePlugin to develop your own P4 plugin.
The build_box_250mhz.tcl file is used for instructing Vivado to generate the VitisNetP4 IP from the P4 code.
The p2p_250mhz.sv is to define the interface between opennic shell and VitisNetP4 IP. It doesn't need to change if your IP doesn't have the extern functions.
Use make shell custom_plguin=templatePlugin to build.