ixgbe: make silicon specific functions generic

The new MAC type X540 shares much of the same functionality of
some silicon specific functions.  To reduce duplicate code,
made these functions generic.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/drivers/net/ixgbe/ixgbe_phy.c b/drivers/net/ixgbe/ixgbe_phy.c
index 6c0d42e33f21..bc255ec48428 100644
--- a/drivers/net/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ixgbe/ixgbe_phy.c
@@ -425,6 +425,39 @@ s32 ixgbe_setup_phy_link_speed_generic(struct ixgbe_hw *hw,
 }
 
 /**
+ * ixgbe_get_copper_link_capabilities_generic - Determines link capabilities
+ * @hw: pointer to hardware structure
+ * @speed: pointer to link speed
+ * @autoneg: boolean auto-negotiation value
+ *
+ * Determines the link capabilities by reading the AUTOC register.
+ */
+s32 ixgbe_get_copper_link_capabilities_generic(struct ixgbe_hw *hw,
+                                                      ixgbe_link_speed *speed,
+                                                      bool *autoneg)
+{
+        s32 status = IXGBE_ERR_LINK_SETUP;
+        u16 speed_ability;
+
+        *speed = 0;
+        *autoneg = true;
+
+        status = hw->phy.ops.read_reg(hw, MDIO_SPEED, MDIO_MMD_PMAPMD,
+                                      &speed_ability);
+
+        if (status == 0) {
+                if (speed_ability & MDIO_SPEED_10G)
+                        *speed |= IXGBE_LINK_SPEED_10GB_FULL;
+                if (speed_ability & MDIO_PMA_SPEED_1000)
+                        *speed |= IXGBE_LINK_SPEED_1GB_FULL;
+                if (speed_ability & MDIO_PMA_SPEED_100)
+                        *speed |= IXGBE_LINK_SPEED_100_FULL;
+        }
+
+        return status;
+}
+
+/**
  *  ixgbe_reset_phy_nl - Performs a PHY reset
  *  @hw: pointer to hardware structure
  **/