e1000e: use alternate MAC address on ESB2 if available

Similar to 82571/2/3 parts that already do this, if ESB2/80003es2lan parts
have an alternate MAC address provided in the EEPROM use it instead of the
default MAC address.  This patch makes the the actual code that does this
generic so that it can be better used by both MAC families.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 27 insertions, 1 deletions

diff --git a/drivers/net/e1000e/es2lan.c b/drivers/net/e1000e/es2lan.c
index e2aa3b788564..4bb9d88ad976 100644
--- a/drivers/net/e1000e/es2lan.c
+++ b/drivers/net/e1000e/es2lan.c
@@ -814,7 +814,9 @@ static s32 e1000_reset_hw_80003es2lan(struct e1000_hw *hw)
         ew32(IMC, 0xffffffff);
         icr = er32(ICR);
 
-        return 0;
+        ret_val = e1000_check_alt_mac_addr_generic(hw);
+
+        return ret_val;
 }
 
 /**
@@ -1340,6 +1342,29 @@ static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
 }
 
 /**
+ *  e1000_read_mac_addr_80003es2lan - Read device MAC address
+ *  @hw: pointer to the HW structure
+ **/
+static s32 e1000_read_mac_addr_80003es2lan(struct e1000_hw *hw)
+{
+        s32 ret_val = 0;
+
+        /*
+         * If there's an alternate MAC address place it in RAR0
+         * so that it will override the Si installed default perm
+         * address.
+         */
+        ret_val = e1000_check_alt_mac_addr_generic(hw);
+        if (ret_val)
+                goto out;
+
+        ret_val = e1000_read_mac_addr_generic(hw);
+
+out:
+        return ret_val;
+}
+
+/**
  * e1000_power_down_phy_copper_80003es2lan - Remove link during PHY power down
  * @hw: pointer to the HW structure
  *
@@ -1403,6 +1428,7 @@ static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw)
 }
 
 static struct e1000_mac_operations es2_mac_ops = {
+        .read_mac_addr          = e1000_read_mac_addr_80003es2lan,
         .id_led_init            = e1000e_id_led_init,
         .check_mng_mode         = e1000e_check_mng_mode_generic,
         /* check_for_link dependent on media type */