I try to use the 10G Ethernet. I flashed the X8DTT-IBX_2010607_ConnectX-2_272_10GE_Test2.bin firmware on 6026TT-HIBXF system. I use OFED v1.5.1 for Linux from here: http://www.mellanox.com/downloads/ofed/MLNX_OFED_LINUX-1.5.1-rhel5.4.iso. However, there is no green/yellow light showing the connectivity, after the QSFP port is connected.
Please use the firmware from: https://www.supermicro.com/wdl/Firmware/InfiniBand/X8DTT-(H)IBX(F)/X8DTT-IBX_20100205_ConnectX-2_272.bin. It supports both IB & 10G Ethernet port types. Please use the command “connectx_port_config” to select the port type.