IFM_56G_R4
[MCX_ETHER_CAP_56G_R4] = { IFM_56G_R4, IF_Gbps(56) },
{ IFM_ETHER | IFM_56G_R4 | IFM_FDX, "56GBASE-R4" }, \
{ IFM_ETHER | IFM_56G_R4, IF_Gbps(56) }, \