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>
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@ -3901,16 +3901,27 @@ static void ixgbe_netpoll(struct net_device *netdev)
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**/
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static int ixgbe_link_config(struct ixgbe_hw *hw)
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{
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u32 autoneg = IXGBE_LINK_SPEED_10GB_FULL;
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u32 autoneg;
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bool link_up = false;
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u32 ret = IXGBE_ERR_LINK_SETUP;
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/* must always autoneg for both 1G and 10G link */
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hw->mac.autoneg = true;
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if (hw->mac.ops.check_link)
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ret = hw->mac.ops.check_link(hw, &autoneg, &link_up, false);
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if ((hw->mac.type == ixgbe_mac_82598EB) &&
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(hw->phy.media_type == ixgbe_media_type_copper))
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autoneg = IXGBE_LINK_SPEED_82598_AUTONEG;
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if (ret || !link_up)
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goto link_cfg_out;
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return hw->mac.ops.setup_link_speed(hw, autoneg, true, true);
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if (hw->mac.ops.get_link_capabilities)
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ret = hw->mac.ops.get_link_capabilities(hw, &autoneg,
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&hw->mac.autoneg);
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if (ret)
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goto link_cfg_out;
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if (hw->mac.ops.setup_link_speed)
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ret = hw->mac.ops.setup_link_speed(hw, autoneg, true, true);
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link_cfg_out:
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return ret;
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}
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static const struct net_device_ops ixgbe_netdev_ops = {
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