Net4FPGAs

This project aims to provide network communication function between multi FPGAs.

Main Features

• Four U250 boards are used. Two in point-to-point, two in switch.
• All the board use interface 1.
• For experiment. The project contains python version and C++ version.
• For performance, we test Round-Trip-Time and Throughput, RRT = 1.07us for point-to-point; 1.71 us for switch connection; Max Throughput = 95.5 Gbps.

Generate XCLBIN

To implement any of the examples run:

make all DEVICE=<full platform path> INTERFACE=<interface number> DESIGN=<design name>

• DEVICE Alveo development target platform.
• INTERFACE defines which physical interface is going to be use. 0, 1 or 3 are supported. When INTERFACE=3 the design will be replicated for each interface. Note that Alveo U50 only has one interface available (INTERFACE=0)
• DESIGN only support the following strings basic and benchmark. If you use something different, an error will be reported
• The basic configuration file is pulled from config_files folder and complete with userPostSysLinkOverlayTcl parameter before calling v++.
• Ethernet/post_sys_link.tcl is automatically called from v++ after system link. It is used to connect the GT capable pins to the cmac kernel(s)
• The XCLBIN will be generated in the folder <DESIGN>.intf_<INTERFACE>.<(short)DEVICE>

For Our platform, I use command below in hacchead machine:

make all DEVICE=/opt/xilinx/platforms/xilinx_u250_gen3x16_xdma_3_1_202020_1/xilinx_u250_gen3x16_xdma_3_1_202020_1.xpfm INTERFACE=1 DESIGN=basic

Run Network basic function

• For python version, go to folder Rtt_throu_py/
• For C++ version, go to folder Loop_basic_c/

Reference

https://github.com/Xilinx/xup_vitis_network_example