SCTL             1466 drivers/net/ethernet/intel/e1000e/82571.c 		ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);
SCTL             1469 drivers/net/ethernet/intel/e1000e/ethtool.c 	ew32(SCTL, E1000_SCTL_ENABLE_SERDES_LOOPBACK);
SCTL             1583 drivers/net/ethernet/intel/e1000e/ethtool.c 			ew32(SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK);