NGBE_PSR_MAC_SWC_IDX
NGBE_WRITE_REG(hw, NGBE_PSR_MAC_SWC_IDX, i);
NGBE_WRITE_REG(hw, NGBE_PSR_MAC_SWC_IDX, 0);
NGBE_WRITE_REG(hw, NGBE_PSR_MAC_SWC_IDX, index);