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| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2009-05-07 11:07:35 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-05-07 14:52:32 -0700 |
| commit | c2d5ab4973bfaa72cbb677801825ce56c8f69b56 (patch) | |
| tree | 80a5a2f555285a45c8e38f409aa996953f60fee6 /drivers/net/e1000 | |
| parent | c9c7d2e5a06cd3a26b6be096949e3371ec2aa123 (diff) | |
| download | linux-3.10-c2d5ab4973bfaa72cbb677801825ce56c8f69b56.tar.gz linux-3.10-c2d5ab4973bfaa72cbb677801825ce56c8f69b56.tar.bz2 linux-3.10-c2d5ab4973bfaa72cbb677801825ce56c8f69b56.zip | |
e1000/e1000e/igb/ixgb: don't txhang after link down
after the recent changes to wired drivers to use only
netif_carrier_off the driver can have outstanding tx work to
complete that will never complete once link is down. Since the
intel hardware will hold this tx work forever, the driver
notices a tx timeout condition internally and might try
to instigate printk and reset of the part with a
netif_stop_queue, which doesn't work because link is down.
Don't bother arming to tx hang detection when link is down.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@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/e1000')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 71d4fe15976..b455dca0901 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -2646,6 +2646,8 @@ static void e1000_watchdog(unsigned long data) * (Do the reset outside of interrupt context). */ adapter->tx_timeout_count++; schedule_work(&adapter->reset_task); + /* return immediately since reset is imminent */ + return; } } |