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Patch in this message | | | From | "Levin, Alexander (Sasha Levin)" <> | Subject | [PATCH AUTOSEL for-4.9 38/53] ixgbe: Configure advertised speeds correctly for KR/KX backplane | Date | Wed, 8 Nov 2017 20:50:04 +0000 |
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From: Don Skidmore <donald.c.skidmore@intel.com>
[ 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> --- drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 5 ++--- 1 file 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); -- 2.11.0
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