From 37e7cb1e3572ede10edb2f084e42973c1c27741a Mon Sep 17 00:00:00 2001 From: Wei Dai Date: Thu, 12 Jan 2017 22:53:27 +0800 Subject: [PATCH] net/ixgbe/base: configure speeds for KR/KX backplane Ensure that the advertised link speeds are configured for KR/KX backplane on some new platform. Without this patch the link remains at 1G when resuming from low power after being downshifted by LPLU (Low Power Link Up). This patch ensures that the advertised speeds are not changed for 2.5G configurations. Signed-off-by: Wei Dai --- drivers/net/ixgbe/base/ixgbe_x550.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c b/drivers/net/ixgbe/base/ixgbe_x550.c index 2f7f4465db..b23d47979a 100644 --- a/drivers/net/ixgbe/base/ixgbe_x550.c +++ b/drivers/net/ixgbe/base/ixgbe_x550.c @@ -2627,12 +2627,11 @@ s32 ixgbe_init_ext_t_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. **/ 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 IXGBE_SUCCESS; return ixgbe_setup_kr_speed_x550em(hw, hw->phy.autoneg_advertised); -- 2.20.1