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ixgbe: Properly display 1 gig downshift warning for backplane

PATCH Applied Jeff Kirsher 2 participants 2 messages Apr 27, 2010

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Jeff Kirsher

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PATCH 1/1 ixgbe: Properly display 1 gig downshift warning for backplane

From: Anjali Singhai <[email protected]>

Description: When using Intel smartspeed, the patch displays a warning when the link down shifts to 1 Gig.

Signed-off-by Anjali Singhai <[email protected]>
Signed-off-by Jeff Kirsher <[email protected]>

---

 drivers/net/ixgbe/ixgbe_82599.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
drivers/net/ixgbe/ixgbe_82599.c +5 -0
index d189ba7..38c3840 100644
@@ -642,6 +642,7 @@ static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
 	s32 i, j;
 	bool link_up = false;
 	u32 autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+	struct ixgbe_adapter *adapter = hw->back;
 
 	hw_dbg(hw, "ixgbe_setup_mac_link_smartspeed.\n");
 

@@ -726,6 +727,10 @@ static s32 ixgbe_setup_mac_link_smartspeed(struct ixgbe_hw *hw,
 					    autoneg_wait_to_complete);
 
 out:
+	if (link_up && (link_speed == IXGBE_LINK_SPEED_1GB_FULL))
+		netif_info(adapter, hw, adapter->netdev, "Smartspeed has"
+			" downgraded the link speed from the maximum"
+			" advertised\n");
 	return status;
 }