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authorDon Skidmore <donald.c.skidmore@intel.com>2016-12-13 20:34:51 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-21 09:23:26 +0100
commit6c7999904f32630027f80c40ceaff38ca0c60ae0 (patch)
treeb6673ce7ae0bba090d1cf0b58e136faaf1852ec5 /drivers
parent5d820f84e169fa3e83e1f28a0cc4ca5a1770a9c4 (diff)
ixgbe: Configure advertised speeds correctly for KR/KX backplane
[ Upstream commit 54f6d4c42451dbd2cc7e0f0bd8fc3eddcab511fe ] This patch ensures that the advertised link speeds are configured for X553 KR/KX backplane. Without this patch the link remains at 1G when resuming from low power after being downshifted by LPLU. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
index 7e6b9267ca9d..30cb66d84095 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
@@ -1995,12 +1995,11 @@ static s32 ixgbe_setup_kx4_x550em(struct ixgbe_hw *hw)
/**
* ixgbe_setup_kr_x550em - Configure the KR PHY
* @hw: pointer to hardware structure
- *
- * Configures the integrated KR PHY for X550EM_x.
**/
static s32 ixgbe_setup_kr_x550em(struct ixgbe_hw *hw)
{
- if (hw->mac.type != ixgbe_mac_X550EM_x)
+ /* leave link alone for 2.5G */
+ if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_2_5GB_FULL)
return 0;
return ixgbe_setup_kr_speed_x550em(hw, hw->phy.autoneg_advertised);