1. Phy100.GbPhy home page:
http://personalpages.to.infn.it/~wheadon/fpga/download/default.html
2. Download Digilent Board files for Xilinx Arty-7 FPGA available for both 2015 and 2014 Vivado versions):
https://reference.digilentinc.com/learn/software/tutorials/vivado-board-files/start
linux% wget https://github.com/Digilent/vivado-boards/archive/master.zip
3. Unzip the master.zip
file and put its contents under Vivado installation directory as
<install dir>/data/boards
e.g. D:\eda\tools\xilinx\software\VIVADO\14.4\Vivado\2014.4\data\boards