From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Dai Subject: [PATCH 3/7] net/ixgbe/base: configure speeds for KR/KX backplane Date: Tue, 10 Jan 2017 23:45:42 +0800 Message-ID: <1484063146-15796-4-git-send-email-wei.dai@intel.com> References: <1484063146-15796-1-git-send-email-wei.dai@intel.com> Cc: helin.zhang@intel.com, konstantin.ananyev@intel.com, Wei Dai To: dev@dpdk.org Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 7F2E55398 for ; Tue, 10 Jan 2017 16:49:41 +0100 (CET) In-Reply-To: <1484063146-15796-1-git-send-email-wei.dai@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This patch ensures 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 advertise 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 2f7f446..b23d479 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); -- 2.7.4