From 81ada1e19786d0544027095b0d4f7c3efff3d99f Mon Sep 17 00:00:00 2001 From: Wei Dai Date: Wed, 21 Dec 2016 17:47:47 +0800 Subject: [PATCH] net/ixgbe/base: use fast MDIO for non-10G devices 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 acb8140c9c..c1fac1a6fa 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; } -- 2.20.1