MV_PCS_DSC1_10GBT
*ds = 1 + FIELD_GET(MV_PCS_DSC1_10GBT, (u16)val);
val |= FIELD_PREP(MV_PCS_DSC1_10GBT, ds);
MV_PCS_DSC1_ENABLE | MV_PCS_DSC1_10GBT |