Can you give the structure diagram of Verilog-pcie? Like Corundum

Hi Alex, thanks for the open source code! I am a beginner student and want to use your verilog-pcie to realize the data in fpga to the computer through pcie, but it is difficult for me to understand the process and principle of code work when reading the code. If it is convenient for you, can you draw its block diagram, just like Corundum? If there is a video to explain it would be even better!