From: Zhu Yanjun <yanjun....@windriver.com>

According to the suggestion from Rustad, Mark D, this behavior perhaps
is more related to the copper phy. But to make fiber phy more robust,
to all the interfaces as a slave interface, the link_speed and link_up
is synchronized.

Signed-off-by: Zhu Yanjun <yanjun....@windriver.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c 
b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 1bb6056..ce47639 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -6441,10 +6441,12 @@ static void ixgbe_watchdog_link_is_up(struct 
ixgbe_adapter *adapter)
         * a bonding driver in 802.3ad mode. When X540 NIC acts as an
         * independent interface, it is not necessary to synchronize link_up
         * and link_speed.
-        * In the end, not continue if (X540 NIC && SLAVE && link_speed UNKNOWN)
+        * According to the suggestion from Rustad, Mark D, this behavior
+        * perhaps is related to the copper phy. To make fiber phy more robust,
+        * To all the interfaces as a slave, the link_speed is checked.
+        * In the end, not continue if (SLAVE && link_speed UNKNOWN)
         */
-       if ((hw->mac.type == ixgbe_mac_X540) &&
-           (netdev->flags & IFF_SLAVE))
+       if (netdev->flags & IFF_SLAVE)
                if (link_speed == IXGBE_LINK_SPEED_UNKNOWN)
                        return;
 
-- 
1.7.9.5

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