This is a note to let you know that I've just added the patch titled
ixgbe: Configure advertised speeds correctly for KR/KX backplane
to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: ixgbe-configure-advertised-speeds-correctly-for-kr-kx-backplane.patch and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Sun Nov 19 11:32:28 CET 2017
From: Don Skidmore donald.c.skidmore@intel.com Date: Tue, 13 Dec 2016 20:34:51 -0500 Subject: ixgbe: Configure advertised speeds correctly for KR/KX backplane
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
--- 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_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);
Patches currently in stable-queue which might be from donald.c.skidmore@intel.com are
queue-4.9/ixgbe-configure-advertised-speeds-correctly-for-kr-kx-backplane.patch