E1000_COLD_SHIFT 1971 dev/pci/if_em.c 		reg_tctl |= E1000_FDX_COLLISION_DISTANCE << E1000_COLD_SHIFT;
E1000_COLD_SHIFT 1973 dev/pci/if_em.c 		reg_tctl |= E1000_HDX_COLLISION_DISTANCE << E1000_COLD_SHIFT;
E1000_COLD_SHIFT 2570 dev/pci/if_em_hw.c     tctl |= coll_dist << E1000_COLD_SHIFT;