New upstream version 17.11.5

[deb_dpdk.git] / drivers / net / ixgbe / ixgbe_ethdev.c

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index d7eb458..f047db8 100644 (file)
--- 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;