From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Dai Subject: [PATCH v2 03/30] net/ixgbe/base: use fast MDIO for non-10G devices Date: Wed, 21 Dec 2016 17:47:47 +0800 Message-ID: <1482313694-31602-4-git-send-email-wei.dai@intel.com> References: <1482313694-31602-1-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 75E2A10BBF for ; Wed, 21 Dec 2016 10:51:52 +0100 (CET) In-Reply-To: <1482313694-31602-1-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" Devices that cannot go 10G speeds can safely select a faster Management Data Input/Output (MDIO) speed. Select fast MDIO clock speed for for those devices. Signed-off-by: Wei Dai --- drivers/net/ixgbe/base/ixgbe_x550.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c b/drivers/net/ixgbe/base/ixgbe_x550.c index acb8140..c1fac1a 100644 --- a/drivers/net/ixgbe/base/ixgbe_x550.c +++ b/drivers/net/ixgbe/base/ixgbe_x550.c @@ -2549,8 +2549,6 @@ STATIC void ixgbe_set_mdio_speed(struct ixgbe_hw *hw) case IXGBE_DEV_ID_X550EM_X_10G_T: case IXGBE_DEV_ID_X550EM_A_SGMII: case IXGBE_DEV_ID_X550EM_A_SGMII_L: - case IXGBE_DEV_ID_X550EM_A_1G_T: - case IXGBE_DEV_ID_X550EM_A_1G_T_L: case IXGBE_DEV_ID_X550EM_A_10G_T: case IXGBE_DEV_ID_X550EM_A_SFP: case IXGBE_DEV_ID_X550EM_A_QSFP: @@ -2559,6 +2557,13 @@ STATIC void ixgbe_set_mdio_speed(struct ixgbe_hw *hw) hlreg0 &= ~IXGBE_HLREG0_MDCSPD; IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); break; + case IXGBE_DEV_ID_X550EM_A_1G_T: + case IXGBE_DEV_ID_X550EM_A_1G_T_L: + /* Select fast MDIO clock speed for these devices */ + hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); + hlreg0 |= IXGBE_HLREG0_MDCSPD; + IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); + break; default: break; } -- 2.7.4