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ixgb: fix link down initial state

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As reported by Andrew Lutomirski <amluto@gmail.com>

All the intel wired ethernet drivers were calling netif_carrier_off
and netif_stop_queue (or variants) before calling register_netdevice

This is incorrect behavior as was pointed out by davem, and causes
ifconfig and friends to report a strange state before first link
after the driver was loaded, since without a netif_carrier_off, the stack
assumes carrier_on, but before register_netdev, netlink messages are not
sent out telling link state.

This apparently confused *some* versions of networkmanager.

in addition this driver appeared to need a netif_start_queue at
the end of open.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reported-by: Andrew Lutomirski <amluto@gmail.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:
Jesse Brandeburg 2009-04-17 20:44:29 +00:00 • committed by David S. Miller
parent 5438646724
commit 3a6d1bc416
1 changed files with 5 additions and 3 deletions
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8
drivers/net/ixgb/ixgb_main.c
View file

@ -471,10 +471,8 @@ ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (err)
goto err_register;
/* we're going to reset, so assume we have no link for now */
/* carrier off reporting is important to ethtool even BEFORE open */
netif_carrier_off(netdev);
netif_stop_queue(netdev);
DPRINTK(PROBE, INFO, "Intel(R) PRO/10GbE Network Connection\n");
ixgb_check_options(adapter);
@ -592,6 +590,8 @@ ixgb_open(struct net_device *netdev)
if (err)
goto err_setup_tx;
netif_carrier_off(netdev);
/* allocate receive descriptors */
err = ixgb_setup_rx_resources(adapter);
@ -602,6 +602,8 @@ ixgb_open(struct net_device *netdev)
if (err)
goto err_up;
netif_start_queue(netdev);
return 0;
err_up: