[dpdk-dev] [PATCH 14/29] net/ixgbe/base: update setup PHY link to unset all speeds

Wei Dai wei.dai at intel.com
Sun Dec 4 07:31:25 CET 2016


This patch updates ixgbe_setup_phy_link_generic to set/unset
auto-negotiation for all speeds. This ensures that unsupported
speeds are unset. This is necessary since the PHY NVM may
advertise unsupported speeds.

Signed-off-by: Wei Dai <wei.dai at intel.com>
---
 drivers/net/ixgbe/base/ixgbe_phy.c | 130 +++++++++++++++----------------------
 1 file changed, 51 insertions(+), 79 deletions(-)

diff --git a/drivers/net/ixgbe/base/ixgbe_phy.c b/drivers/net/ixgbe/base/ixgbe_phy.c
index 1d9fb3e..54e45b2 100644
--- a/drivers/net/ixgbe/base/ixgbe_phy.c
+++ b/drivers/net/ixgbe/base/ixgbe_phy.c
@@ -787,91 +787,63 @@ s32 ixgbe_setup_phy_link_generic(struct ixgbe_hw *hw)
 
 	ixgbe_get_copper_link_capabilities_generic(hw, &speed, &autoneg);
 
-	if (speed & IXGBE_LINK_SPEED_10GB_FULL) {
-		/* Set or unset auto-negotiation 10G advertisement */
-		hw->phy.ops.read_reg(hw, IXGBE_MII_10GBASE_T_AUTONEG_CTRL_REG,
-				     IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
-				     &autoneg_reg);
-
-		autoneg_reg &= ~IXGBE_MII_10GBASE_T_ADVERTISE;
-		if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10GB_FULL)
-			autoneg_reg |= IXGBE_MII_10GBASE_T_ADVERTISE;
-
-		hw->phy.ops.write_reg(hw, IXGBE_MII_10GBASE_T_AUTONEG_CTRL_REG,
-				      IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
-				      autoneg_reg);
-	}
-
-	if (hw->mac.type == ixgbe_mac_X550) {
-		if (speed & IXGBE_LINK_SPEED_5GB_FULL) {
-			/* Set or unset auto-negotiation 5G advertisement */
-			hw->phy.ops.read_reg(hw,
-				IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
-				IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
-				&autoneg_reg);
-
-			autoneg_reg &= ~IXGBE_MII_5GBASE_T_ADVERTISE;
-			if (hw->phy.autoneg_advertised &
-			     IXGBE_LINK_SPEED_5GB_FULL)
-				autoneg_reg |= IXGBE_MII_5GBASE_T_ADVERTISE;
-
-			hw->phy.ops.write_reg(hw,
-				IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
-				IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
-				autoneg_reg);
-		}
+	/* Set or unset auto-negotiation 10G advertisement */
+	hw->phy.ops.read_reg(hw, IXGBE_MII_10GBASE_T_AUTONEG_CTRL_REG,
+			     IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+			     &autoneg_reg);
 
-		if (speed & IXGBE_LINK_SPEED_2_5GB_FULL) {
-			/* Set or unset auto-negotiation 2.5G advertisement */
-			hw->phy.ops.read_reg(hw,
-				IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
-				IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
-				&autoneg_reg);
-
-			autoneg_reg &= ~IXGBE_MII_2_5GBASE_T_ADVERTISE;
-			if (hw->phy.autoneg_advertised &
-			    IXGBE_LINK_SPEED_2_5GB_FULL)
-				autoneg_reg |= IXGBE_MII_2_5GBASE_T_ADVERTISE;
-
-			hw->phy.ops.write_reg(hw,
-				IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
-				IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
-				autoneg_reg);
-		}
-	}
+	autoneg_reg &= ~IXGBE_MII_10GBASE_T_ADVERTISE;
+	if ((hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_10GB_FULL) &&
+	    (speed & IXGBE_LINK_SPEED_10GB_FULL))
+		autoneg_reg |= IXGBE_MII_10GBASE_T_ADVERTISE;
 
-	if (speed & IXGBE_LINK_SPEED_1GB_FULL) {
-		/* Set or unset auto-negotiation 1G advertisement */
-		hw->phy.ops.read_reg(hw,
-				     IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
-				     IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
-				     &autoneg_reg);
+	hw->phy.ops.write_reg(hw, IXGBE_MII_10GBASE_T_AUTONEG_CTRL_REG,
+			      IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+			      autoneg_reg);
 
-		autoneg_reg &= ~IXGBE_MII_1GBASE_T_ADVERTISE;
-		if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_1GB_FULL)
-			autoneg_reg |= IXGBE_MII_1GBASE_T_ADVERTISE;
+	hw->phy.ops.read_reg(hw, IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
+			     IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+			     &autoneg_reg);
 
-		hw->phy.ops.write_reg(hw,
-				      IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
-				      IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
-				      autoneg_reg);
+	if (hw->mac.type == ixgbe_mac_X550) {
+		/* Set or unset auto-negotiation 5G advertisement */
+		autoneg_reg &= ~IXGBE_MII_5GBASE_T_ADVERTISE;
+		if ((hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_5GB_FULL) &&
+		    (speed & IXGBE_LINK_SPEED_5GB_FULL))
+			autoneg_reg |= IXGBE_MII_5GBASE_T_ADVERTISE;
+
+		/* Set or unset auto-negotiation 2.5G advertisement */
+		autoneg_reg &= ~IXGBE_MII_2_5GBASE_T_ADVERTISE;
+		if ((hw->phy.autoneg_advertised &
+		     IXGBE_LINK_SPEED_2_5GB_FULL) &&
+		    (speed & IXGBE_LINK_SPEED_2_5GB_FULL))
+			autoneg_reg |= IXGBE_MII_2_5GBASE_T_ADVERTISE;
 	}
 
-	if (speed & IXGBE_LINK_SPEED_100_FULL) {
-		/* Set or unset auto-negotiation 100M advertisement */
-		hw->phy.ops.read_reg(hw, IXGBE_MII_AUTONEG_ADVERTISE_REG,
-				     IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
-				     &autoneg_reg);
-
-		autoneg_reg &= ~(IXGBE_MII_100BASE_T_ADVERTISE |
-				 IXGBE_MII_100BASE_T_ADVERTISE_HALF);
-		if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_100_FULL)
-			autoneg_reg |= IXGBE_MII_100BASE_T_ADVERTISE;
-
-		hw->phy.ops.write_reg(hw, IXGBE_MII_AUTONEG_ADVERTISE_REG,
-				      IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
-				      autoneg_reg);
-	}
+	/* Set or unset auto-negotiation 1G advertisement */
+	autoneg_reg &= ~IXGBE_MII_1GBASE_T_ADVERTISE;
+	if ((hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_1GB_FULL) &&
+	    (speed & IXGBE_LINK_SPEED_1GB_FULL))
+		autoneg_reg |= IXGBE_MII_1GBASE_T_ADVERTISE;
+
+	hw->phy.ops.write_reg(hw, IXGBE_MII_AUTONEG_VENDOR_PROVISION_1_REG,
+			      IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+			      autoneg_reg);
+
+	/* Set or unset auto-negotiation 100M advertisement */
+	hw->phy.ops.read_reg(hw, IXGBE_MII_AUTONEG_ADVERTISE_REG,
+			     IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+			     &autoneg_reg);
+
+	autoneg_reg &= ~(IXGBE_MII_100BASE_T_ADVERTISE |
+			 IXGBE_MII_100BASE_T_ADVERTISE_HALF);
+	if ((hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_100_FULL) &&
+	    (speed & IXGBE_LINK_SPEED_100_FULL))
+		autoneg_reg |= IXGBE_MII_100BASE_T_ADVERTISE;
+
+	hw->phy.ops.write_reg(hw, IXGBE_MII_AUTONEG_ADVERTISE_REG,
+			      IXGBE_MDIO_AUTO_NEG_DEV_TYPE,
+			      autoneg_reg);
 
 	/* Blocked by MNG FW so don't reset PHY */
 	if (ixgbe_check_reset_blocked(hw))
-- 
2.7.4



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