1G/10Gb Ethernet FPGA IP uses XGMII instead of GMII in 1Gb mode

Hello, all. I attempt to launch the Ethernet 1Gb link through the 1G/10Gbe and 10GBASE-KR PHY Intel Arria 10 FPGA IP. 1Gb patch-cord connects SFP+ port from board with Arria10 with SFP+ port on ...