e1000: separate link and Rx interrupt disabling

Separate lsc and rxq interrupt for they have different interrupt handlers.

Signed-off-by: Marvin Liu <yong.liu@intel.com>
Acked-by: Cunming Liang <cunming.liang@intel.com>

diff --git a/drivers/net/e1000/em_ethdev.c b/drivers/net/e1000/em_ethdev.c
index 4e75101..fb00b18 100644 (file)
--- a/drivers/net/e1000/em_ethdev.c
+++ b/drivers/net/e1000/em_ethdev.c
@@ -107,10 +107,11 @@ static void em_vlan_hw_strip_disable(struct rte_eth_dev *dev);
 static void eth_em_vlan_filter_set(struct rte_eth_dev *dev,
                                        uint16_t vlan_id, int on);
 */
+static void em_lsc_intr_disable(struct e1000_hw *hw);
+static void em_rxq_intr_disable(struct e1000_hw *hw);
 static int eth_em_led_on(struct rte_eth_dev *dev);
 static int eth_em_led_off(struct rte_eth_dev *dev);
 
-static void em_intr_disable(struct e1000_hw *hw);
 static int em_get_rx_buffer_size(struct e1000_hw *hw);
 static void eth_em_rar_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
                uint32_t index, uint32_t pool);
@@ -635,7 +636,9 @@ eth_em_stop(struct rte_eth_dev *dev)
        struct rte_eth_link link;
        struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 
-       em_intr_disable(hw);
+       em_rxq_intr_disable(hw);
+       em_lsc_intr_disable(hw);
+
        e1000_reset_hw(hw);
        if (hw->mac.type >= e1000_82544)
                E1000_WRITE_REG(hw, E1000_WUC, 0);
@@ -1249,13 +1252,7 @@ eth_em_vlan_offload_set(struct rte_eth_dev *dev, int mask)
        }
 }
 
-static void
-em_intr_disable(struct e1000_hw *hw)
-{
-       E1000_WRITE_REG(hw, E1000_IMC, ~0);
-}
-
-/**
+/*
  * It enables the interrupt mask and then enable the interrupt.
  *
  * @param dev
@@ -1279,6 +1276,35 @@ eth_em_interrupt_setup(struct rte_eth_dev *dev)
        return (0);
 }
 
+/*
+ * It disabled lsc interrupt.
+ * @param hw
+ * Pointer to struct e1000_hw
+ *
+ * @return
+ */
+static void
+em_lsc_intr_disable(struct e1000_hw *hw)
+{
+       E1000_WRITE_REG(hw, E1000_IMC, E1000_IMS_LSC);
+       E1000_WRITE_FLUSH(hw);
+}
+
+/*
+ * It disabled receive packet interrupt.
+ * @param hw
+ * Pointer to struct e1000_hw
+ *
+ * @return
+ */
+static void
+em_rxq_intr_disable(struct e1000_hw *hw)
+{
+       E1000_READ_REG(hw, E1000_ICR);
+       E1000_WRITE_REG(hw, E1000_IMC, E1000_IMS_RXT0);
+       E1000_WRITE_FLUSH(hw);
+}
+
 /*
  * It reads ICR and gets interrupt causes, check it and set a bit flag
  * to update link status.