1 files changed, 55 insertions, 24 deletions

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index d7eb4580..f047db83 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -254,6 +254,8 @@ static int ixgbe_dev_interrupt_action(struct rte_eth_dev *dev,
 				      struct rte_intr_handle *handle);
 static void ixgbe_dev_interrupt_handler(void *param);
 static void ixgbe_dev_interrupt_delayed_handler(void *param);
+static void ixgbe_dev_setup_link_alarm_handler(void *param);
+
 static int ixgbe_add_rar(struct rte_eth_dev *dev, struct ether_addr *mac_addr,
 			 uint32_t index, uint32_t pool);
 static void ixgbe_remove_rar(struct rte_eth_dev *dev, uint32_t index);
@@ -2531,6 +2533,9 @@ ixgbe_dev_start(struct rte_eth_dev *dev)
 		return -EINVAL;
 	}
 
+	/* Stop the link setup handler before resetting the HW. */
+	rte_eal_alarm_cancel(ixgbe_dev_setup_link_alarm_handler, dev);
+
 	/* disable uio/vfio intr/eventfd mapping */
 	rte_intr_disable(intr_handle);
 
@@ -2732,6 +2737,12 @@ skip_link_setup:
 			    "please call hierarchy_commit() "
 			    "before starting the port");
 
+	/*
+	 * Update link status right before return, because it may
+	 * start link configuration process in a separate thread.
+	 */
+	ixgbe_dev_link_update(dev, 0);
+
 	return 0;
 
 error:
@@ -2759,6 +2770,8 @@ ixgbe_dev_stop(struct rte_eth_dev *dev)
 
 	PMD_INIT_FUNC_TRACE();
 
+	rte_eal_alarm_cancel(ixgbe_dev_setup_link_alarm_handler, dev);
+
 	/* disable interrupts */
 	ixgbe_disable_intr(hw);
 
@@ -3865,11 +3878,6 @@ static int
 ixgbevf_check_link(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
 		   int *link_up, int wait_to_complete)
 {
-	/**
-	 * for a quick link status checking, wait_to_compelet == 0,
-	 * skip PF link status checking
-	 */
-	bool no_pflink_check = wait_to_complete == 0;
 	struct ixgbe_mbx_info *mbx = &hw->mbx;
 	struct ixgbe_mac_info *mac = &hw->mac;
 	uint32_t links_reg, in_msg;
@@ -3930,14 +3938,6 @@ ixgbevf_check_link(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
 		*speed = IXGBE_LINK_SPEED_UNKNOWN;
 	}
 
-	if (no_pflink_check) {
-		if (*speed == IXGBE_LINK_SPEED_UNKNOWN)
-			mac->get_link_status = true;
-		else
-			mac->get_link_status = false;
-
-		goto out;
-	}
 	/* if the read failed it could just be a mailbox collision, best wait
 	 * until we are called again and don't report an error
 	 */
@@ -3947,7 +3947,7 @@ ixgbevf_check_link(struct ixgbe_hw *hw, ixgbe_link_speed *speed,
 	if (!(in_msg & IXGBE_VT_MSGTYPE_CTS)) {
 		/* msg is not CTS and is NACK we must have lost CTS status */
 		if (in_msg & IXGBE_VT_MSGTYPE_NACK)
-			ret_val = -1;
+			mac->get_link_status = false;
 		goto out;
 	}
 
@@ -3967,6 +3967,25 @@ out:
 	return ret_val;
 }
 
+static void
+ixgbe_dev_setup_link_alarm_handler(void *param)
+{
+	struct rte_eth_dev *dev = (struct rte_eth_dev *)param;
+	struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct ixgbe_interrupt *intr =
+		IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
+	u32 speed;
+	bool autoneg = false;
+
+	speed = hw->phy.autoneg_advertised;
+	if (!speed)
+		ixgbe_get_link_capabilities(hw, &speed, &autoneg);
+
+	ixgbe_setup_link(hw, speed, true);
+
+	intr->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG;
+}
+
 /* return 0 means link status changed, -1 means not changed */
 static int
 ixgbe_dev_link_update_share(struct rte_eth_dev *dev,
@@ -3979,9 +3998,7 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev,
 		IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
 	int link_up;
 	int diag;
-	u32 speed = 0;
 	int wait = 1;
-	bool autoneg = false;
 
 	link.link_status = ETH_LINK_DOWN;
 	link.link_speed = 0;
@@ -3992,12 +4009,11 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev,
 
 	hw->mac.get_link_status = true;
 
-	if ((intr->flags & IXGBE_FLAG_NEED_LINK_CONFIG) &&
-		ixgbe_get_media_type(hw) == ixgbe_media_type_fiber) {
-		speed = hw->phy.autoneg_advertised;
-		if (!speed)
-			ixgbe_get_link_capabilities(hw, &speed, &autoneg);
-		ixgbe_setup_link(hw, speed, true);
+	if (intr->flags & IXGBE_FLAG_NEED_LINK_CONFIG) {
+		rte_ixgbe_dev_atomic_write_link_status(dev, &link);
+		if (link.link_status == old.link_status)
+			return -1;
+		return 0;
 	}
 
 	/* check if it needs to wait to complete, if lsc interrupt is enabled */
@@ -4020,12 +4036,16 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev,
 
 	if (link_up == 0) {
 		rte_ixgbe_dev_atomic_write_link_status(dev, &link);
-		intr->flags |= IXGBE_FLAG_NEED_LINK_CONFIG;
+		if (ixgbe_get_media_type(hw) == ixgbe_media_type_fiber) {
+			intr->flags |= IXGBE_FLAG_NEED_LINK_CONFIG;
+			rte_eal_alarm_set(10,
+				ixgbe_dev_setup_link_alarm_handler, dev);
+		}
 		if (link.link_status == old.link_status)
 			return -1;
 		return 0;
 	}
-	intr->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG;
+
 	link.link_status = ETH_LINK_UP;
 	link.link_duplex = ETH_LINK_FULL_DUPLEX;
 
@@ -5031,6 +5051,9 @@ ixgbevf_dev_start(struct rte_eth_dev *dev)
 
 	PMD_INIT_FUNC_TRACE();
 
+	/* Stop the link setup handler before resetting the HW. */
+	rte_eal_alarm_cancel(ixgbe_dev_setup_link_alarm_handler, dev);
+
 	err = hw->mac.ops.reset_hw(hw);
 	if (err) {
 		PMD_INIT_LOG(ERR, "Unable to reset vf hardware (%d)", err);
@@ -5103,6 +5126,12 @@ ixgbevf_dev_start(struct rte_eth_dev *dev)
 	/* Re-enable interrupt for VF */
 	ixgbevf_intr_enable(hw);
 
+	/*
+	 * Update link status right before return, because it may
+	 * start link configuration process in a separate thread.
+	 */
+	ixgbevf_dev_link_update(dev, 0);
+
 	return 0;
 }
 
@@ -5115,6 +5144,8 @@ ixgbevf_dev_stop(struct rte_eth_dev *dev)
 
 	PMD_INIT_FUNC_TRACE();
 
+	rte_eal_alarm_cancel(ixgbe_dev_setup_link_alarm_handler, dev);
+
 	ixgbevf_intr_disable(hw);
 
 	hw->adapter_stopped = 1;