FW2X_CTRL_ASYMMETRIC_PAUSE
if (mpi_state & FW2X_CTRL_ASYMMETRIC_PAUSE)
mpi_ctrl &= ~(FW2X_CTRL_PAUSE | FW2X_CTRL_ASYMMETRIC_PAUSE);
mpi_ctrl |= FW2X_CTRL_ASYMMETRIC_PAUSE;
mpi_ctrl &= ~(FW2X_CTRL_PAUSE | FW2X_CTRL_ASYMMETRIC_PAUSE);