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ixgbe: fix slow load times on 82598 nics 

Load times for NICs that use i2c to communicate with the phy were taking
~4.5 sec per port.  This fix first checks to see if the link is already
up before calling get_link_capabilities, since if it is we don't need
query the phy for link state.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Don Skidmore 2009-01-26 20:57:17 -08:00 committed by David S. Miller
parent afcf12422e
commit 5b9c3cdd55
1 changed files with 18 additions and 7 deletions
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25
drivers/net/ixgbe/ixgbe_main.c
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@ -3901,16 +3901,27 @@ static void ixgbe_netpoll(struct net_device *netdev)
**/
static int ixgbe_link_config(struct ixgbe_hw *hw)
{
u32 autoneg = IXGBE_LINK_SPEED_10GB_FULL;
u32 autoneg;
bool link_up = false;
u32 ret = IXGBE_ERR_LINK_SETUP;
/* must always autoneg for both 1G and 10G link */
hw->mac.autoneg = true;
if (hw->mac.ops.check_link)
ret = hw->mac.ops.check_link(hw, &autoneg, &link_up, false);
if ((hw->mac.type == ixgbe_mac_82598EB) &&
(hw->phy.media_type == ixgbe_media_type_copper))
autoneg = IXGBE_LINK_SPEED_82598_AUTONEG;
if (ret || !link_up)
goto link_cfg_out;
return hw->mac.ops.setup_link_speed(hw, autoneg, true, true);
if (hw->mac.ops.get_link_capabilities)
ret = hw->mac.ops.get_link_capabilities(hw, &autoneg,
&hw->mac.autoneg);
if (ret)
goto link_cfg_out;
if (hw->mac.ops.setup_link_speed)
ret = hw->mac.ops.setup_link_speed(hw, autoneg, true, true);
link_cfg_out:
return ret;
}
static const struct net_device_ops ixgbe_netdev_ops = {