Hi,
I am an FPGA engineer with 5 years of experience in FPGA based systems development, specifically Ethernet related. I have worked on 1Mbps/10Mbps 100Mbps as well as 100Gbps Ethernet solutions and have developed IPs for MAC and PCS layer as well. I also have an IEEE paper based on this.
I think you are using Xilinx Arty FPGA device, but I am not sure of SFP ports in it. Anyway at 100Mbps, you dont need SFP ports.
I would like to discuss more on the project.
Looking forward to hearing backf rom you.
Thank you
Anusha