IXGBE_RXDCTL
rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), rxdctl);
if (IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)) &
ctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), ctrl);
reg_val = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i));
IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), reg_val);