[PATCH] e100: fixed e100 MDI/MDI-X issues

Added patch from Eran Mann to fix following e100 MDI/MDI-X issues
 * MDI/MDI-X autodetection should never be enabled for 82551ER/QM chips
 * enabling this feature based on eeprom settings

Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@intel.com>
Signed-off-by: Ganesh Venkatesan <ganesh.venkatesan@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>

1 files changed, 10 insertions, 5 deletions

diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index cfaa6b2bf345..7e46d038b9f8 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -1093,11 +1093,16 @@ static int e100_phy_init(struct nic *nic)
         }
 
         if((nic->mac >= mac_82550_D102) || ((nic->flags & ich) && 
-                (mdio_read(netdev, nic->mii.phy_id, MII_TPISTATUS) & 0x8000) && 
-                (nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled)))
-                /* enable/disable MDI/MDI-X auto-switching */
-                mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG,
-                        nic->mii.force_media ? 0 : NCONFIG_AUTO_SWITCH);
+           (mdio_read(netdev, nic->mii.phy_id, MII_TPISTATUS) & 0x8000))) {
+                /* enable/disable MDI/MDI-X auto-switching.
+                   MDI/MDI-X auto-switching is disabled for 82551ER/QM chips */
+                if((nic->mac == mac_82551_E) || (nic->mac == mac_82551_F) ||
+                   (nic->mac == mac_82551_10) || (nic->mii.force_media) || 
+                   !(nic->eeprom[eeprom_cnfg_mdix] & eeprom_mdix_enabled)) 
+                        mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG, 0);
+                else
+                        mdio_write(netdev, nic->mii.phy_id, MII_NCONFIG, NCONFIG_AUTO_SWITCH);
+        }
 
         return 0;
 }