NFE_PHY_HDX       345 dev/pci/if_nfe.c 	phy &= ~(NFE_PHY_HDX | NFE_PHY_100TX | NFE_PHY_1000T);
NFE_PHY_HDX       351 dev/pci/if_nfe.c 		phy  |= NFE_PHY_HDX;	/* half-duplex */