- patches.suse/slab-handle-memoryless-nodes-v2a.patch: Refresh.

[linux-flexiantxendom0-3.2.10.git] / drivers / net / ixgbe / ixgbe_82598.c

diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index e2d5343..3103f41 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ixgbe/ixgbe_82598.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel 10 Gigabit PCI Express Linux driver
-  Copyright(c) 1999 - 2009 Intel Corporation.
+  Copyright(c) 1999 - 2010 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
@@ -510,6 +510,40 @@ static s32 ixgbe_start_mac_link_82598(struct ixgbe_hw *hw,
 }
 
 /**
+ *  ixgbe_validate_link_ready - Function looks for phy link
+ *  @hw: pointer to hardware structure
+ *
+ *  Function indicates success when phy link is available. If phy is not ready
+ *  within 5 seconds of MAC indicating link, the function returns error.
+ **/
+static s32 ixgbe_validate_link_ready(struct ixgbe_hw *hw)
+{
+       u32 timeout;
+       u16 an_reg;
+
+       if (hw->device_id != IXGBE_DEV_ID_82598AT2)
+               return 0;
+
+       for (timeout = 0;
+            timeout < IXGBE_VALIDATE_LINK_READY_TIMEOUT; timeout++) {
+               hw->phy.ops.read_reg(hw, MDIO_STAT1, MDIO_MMD_AN, &an_reg);
+
+               if ((an_reg & MDIO_AN_STAT1_COMPLETE) &&
+                   (an_reg & MDIO_STAT1_LSTATUS))
+                       break;
+
+               msleep(100);
+       }
+
+       if (timeout == IXGBE_VALIDATE_LINK_READY_TIMEOUT) {
+               hw_dbg(hw, "Link was indicated but link is down\n");
+               return IXGBE_ERR_LINK_SETUP;
+       }
+
+       return 0;
+}
+
+/**
  *  ixgbe_check_mac_link_82598 - Get link/speed status
  *  @hw: pointer to hardware structure
  *  @speed: pointer to link speed
@@ -589,6 +623,10 @@ static s32 ixgbe_check_mac_link_82598(struct ixgbe_hw *hw,
        else
                *speed = IXGBE_LINK_SPEED_1GB_FULL;
 
+       if ((hw->device_id == IXGBE_DEV_ID_82598AT2) && (*link_up == true) &&
+           (ixgbe_validate_link_ready(hw) != 0))
+               *link_up = false;
+
        /* if link is down, zero out the current_mode */
        if (*link_up == false) {
                hw->fc.current_mode = ixgbe_fc_none;