NAME
rio_mport_is_active - Tests if master port link is active
SYNOPSIS
int rio_mport_is_active (struct rio_mport * port);
ARGUMENTS
port Master port to test
DESCRIPTION
Reads the port error status CSR for the master port to determine if the
port has an active link. Returns PORT_N_ERR_STS_PORT_OK if the master
port is active or 0 if it is inactive.
AUTHOR
Matt Porter <mporter@kernel.crashing.org> <mporter@mvista.com>.