igb: fixes 82576 serdes init to correctly support manual flow control changes
authorAlexander Duyck <alexander.h.duyck@intel.com>
Mon, 4 Aug 2008 21:59:56 +0000 (14:59 -0700)
committerJeff Garzik <jgarzik@redhat.com>
Thu, 7 Aug 2008 05:55:09 +0000 (01:55 -0400)
This patch changes the PCS configuration for serdes so that the flow
control options change be set via the ethtool -A option.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
drivers/net/igb/e1000_82575.c
drivers/net/igb/e1000_defines.h

index f3d7be0427fe8296590d1dfa328e3866a0adb7e1..cd75a2bc24a0300369f624b03be53d32daee9037 100644 (file)
@@ -1136,6 +1136,12 @@ static s32 igb_setup_fiber_serdes_link_82575(struct e1000_hw *hw)
                       E1000_PCS_LCTL_FORCE_LINK;     /* Force Link */
                hw_dbg("Configuring Forced Link; PCS_LCTL = 0x%08X\n", reg);
        }
+
+       if (hw->mac.type == e1000_82576) {
+               reg |= E1000_PCS_LCTL_FORCE_FCTRL;
+               igb_force_mac_fc(hw);
+       }
+
        wr32(E1000_PCS_LCTL, reg);
 
        return 0;
index afdba3c9073c3120e8af9e8fc667a4e2ab0ceb04..ce700689fb57a0ecd09711de176dab632754856a 100644 (file)
 #define E1000_PCS_LCTL_FDV_FULL          8
 #define E1000_PCS_LCTL_FSD               0x10
 #define E1000_PCS_LCTL_FORCE_LINK        0x20
+#define E1000_PCS_LCTL_FORCE_FCTRL       0x80
 #define E1000_PCS_LCTL_AN_ENABLE         0x10000
 #define E1000_PCS_LCTL_AN_RESTART        0x20000
 #define E1000_PCS_LCTL_AN_TIMEOUT        0x40000