Indicates if FSY/SCK signals are configured as outputs or inputs.
Enumerator:
UCS_STREAM_PORT_CLK_MODE_OUTPUT
INIC drives the FSY/SCK signals as outputs, frequency locked to the network clock.
UCS_STREAM_PORT_CLK_MODE_INPUT
FSY/SCK signals are configured as inputs and are driven from outside the INIC. Use RMCK, frequency locked to the network clock, as reference for clock generation.