IFM_50G_CR2
vke_ifmedia_addfdx(sc, IFM_50G_CR2);
{ IFM_50G_CR2, "50GbaseCR2" }, \
{ IFM_ETHER|IFM_50G_CR2, IF_Gbps(50ULL) }, \
case IFM_50G_CR2: