+static void
+eth_em_rxtx_control(struct rte_eth_dev *dev,
+ bool enable)
+{
+ struct e1000_hw *hw =
+ E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint32_t tctl, rctl;
+
+ tctl = E1000_READ_REG(hw, E1000_TCTL);
+ rctl = E1000_READ_REG(hw, E1000_RCTL);
+ if (enable) {
+ /* enable Tx/Rx */
+ tctl |= E1000_TCTL_EN;
+ rctl |= E1000_RCTL_EN;
+ } else {
+ /* disable Tx/Rx */
+ tctl &= ~E1000_TCTL_EN;
+ rctl &= ~E1000_RCTL_EN;
+ }
+ E1000_WRITE_REG(hw, E1000_TCTL, tctl);
+ E1000_WRITE_REG(hw, E1000_RCTL, rctl);
+ E1000_WRITE_FLUSH(hw);
+}
+