[dpdk-dev] [PATCH 30/36] ixgbe base codes: Auto-negotiation

[Ouyang Changchun <changchun.ouyang@intel.com>]

Auto-negotiation for link speed of 5G.

Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com>
---
 lib/librte_pmd_ixgbe/ixgbe/ixgbe_phy.c  | 41 ++++++++++++++++++++++++++++++++-
 lib/librte_pmd_ixgbe/ixgbe/ixgbe_type.h |  2 ++
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_phy.c b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_phy.c
index fe5bedc..dc58f66 100644
--- a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_phy.c
+++ b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_phy.c
@@ -745,6 +745,44 @@ s32 ixgbe_setup_phy_link_generic(struct ixgbe_hw *hw)
 				      autoneg_reg);
 	}
 
+	if (hw->mac.type == ixgbe_mac_X550) {
+		if (speed & IXGBE_LINK_SPEED_5GB_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);
+
+			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);
+		}
+
+		if (speed & IXGBE_LINK_SPEED_2_5GB_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);
+
+			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);
+		}
+	}
+
 	if (speed & IXGBE_LINK_SPEED_1GB_FULL) {
 		/* Set or unset auto-negotiation 1G advertisement */
 		hw->phy.ops.read_reg(hw,
@@ -840,7 +878,8 @@ s32 ixgbe_setup_phy_link_speed_generic(struct ixgbe_hw *hw,
  *  @speed: pointer to link speed
  *  @autoneg: boolean auto-negotiation value
  *
- *  Determines the link capabilities by reading the AUTOC register.
+ *  Determines the supported link capabilities by reading the PHY auto
+ *  negotiation register.
  **/
 s32 ixgbe_get_copper_link_capabilities_generic(struct ixgbe_hw *hw,
 					       ixgbe_link_speed *speed,
diff --git a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_type.h b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_type.h
index ae760df..94f4900 100644
--- a/lib/librte_pmd_ixgbe/ixgbe/ixgbe_type.h
+++ b/lib/librte_pmd_ixgbe/ixgbe/ixgbe_type.h
@@ -1433,6 +1433,8 @@ struct ixgbe_dmac_config {
 #define IXGBE_MII_10GBASE_T_ADVERTISE		0x1000 /* full duplex, bit:12*/
 #define IXGBE_MII_1GBASE_T_ADVERTISE_XNP_TX	0x4000 /* full duplex, bit:14*/
 #define IXGBE_MII_1GBASE_T_ADVERTISE		0x8000 /* full duplex, bit:15*/
+#define IXGBE_MII_2_5GBASE_T_ADVERTISE		0x0400
+#define IXGBE_MII_5GBASE_T_ADVERTISE		0x0800
 #define IXGBE_MII_100BASE_T_ADVERTISE		0x0100 /* full duplex, bit:8 */
 #define IXGBE_MII_100BASE_T_ADVERTISE_HALF	0x0080 /* half duplex, bit:7 */
 #define IXGBE_MII_RESTART			0x200
-- 
1.8.4.2