After you update your firmware, determine which configuration mode you want to be in, using the QCU tool. The QCU tool is a command-line utility used for dynamically switching the ports between various modes supported by the adapter.
4x10 mode, whereby a port is split into four physical functions that operate at 10Gbps. Port 1 (B) is not active in this configuration.
2x40 mode, whereby both ports are configured to operate at 40Gbps. Both ports appear as single physical functions.
2x2x10 mode, whereby each port is split into two physical functions that operate at 10Gbps.
To switch port modes, refer to the QCU tool instructions, which can be downloaded from:http://www.oracle.com/goto/10gb-or-40gb-ethernet-adapter, under Related Products.