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authorAlexander Duyck <alexander.h.duyck@intel.com>2009-12-23 13:21:07 +0000
committerDavid S. Miller <davem@davemloft.net>2009-12-23 20:47:50 -0800
commit8c6af2995c14e71558c312b86955ae32272a03d8 (patch)
tree7b8f6e5fb4cbac5f4cbb3558a0c12db7441b1107 /drivers/net/igb
parentd68caec645b4b92f6a81985265b024bc94bce41f (diff)
igb: do not force retry count to 1 on 82580 phy
This change resolves an issue seen in some configurations where the link may drop to 100Mb/s even though the link itself supports 1000Mb/s. The issue was root caused to the fact that we were only trying the link once. Now instead we will try up to 5 attempts on a faulty cable before downshifting to 100Mb/s. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/igb')
-rw-r--r--drivers/net/igb/e1000_phy.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/net/igb/e1000_phy.c b/drivers/net/igb/e1000_phy.c
index 5c9d73e9bb8..3670a66401b 100644
--- a/drivers/net/igb/e1000_phy.c
+++ b/drivers/net/igb/e1000_phy.c
@@ -457,15 +457,6 @@ s32 igb_copper_link_setup_82580(struct e1000_hw *hw)
phy_data |= I82580_CFG_ENABLE_DOWNSHIFT;
ret_val = phy->ops.write_reg(hw, I82580_CFG_REG, phy_data);
- if (ret_val)
- goto out;
-
- /* Set number of link attempts before downshift */
- ret_val = phy->ops.read_reg(hw, I82580_CTRL_REG, &phy_data);
- if (ret_val)
- goto out;
- phy_data &= ~I82580_CTRL_DOWNSHIFT_MASK;
- ret_val = phy->ops.write_reg(hw, I82580_CTRL_REG, phy_data);
out:
return ret_val;