diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2009-12-23 13:21:07 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-23 20:47:50 -0800 |
| commit | 8c6af2995c14e71558c312b86955ae32272a03d8 (patch) | |
| tree | 7b8f6e5fb4cbac5f4cbb3558a0c12db7441b1107 | |
| parent | d68caec645b4b92f6a81985265b024bc94bce41f (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>
| -rw-r--r-- | drivers/net/igb/e1000_phy.c | 9 |
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; |