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| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2012-02-07 02:29:01 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2012-03-12 20:16:53 -0700 |
| commit | 5c4903549c05bbb373479e0ce2992573c120654a (patch) | |
| tree | 32064a4a797dd19b286f921a83389980524a3918 /include | |
| parent | b2d96e0ac07cf4929c6b0eb13121672048368117 (diff) | |
| download | linux-stable-5c4903549c05bbb373479e0ce2992573c120654a.tar.gz linux-stable-5c4903549c05bbb373479e0ce2992573c120654a.tar.bz2 linux-stable-5c4903549c05bbb373479e0ce2992573c120654a.zip | |
net: Fix issue with netdev_tx_reset_queue not resetting queue from XOFF state
We are seeing dev_watchdog hangs on several drivers. I suspect this is due
to the __QUEUE_STATE_STACK_XOFF bit being set prior to a reset for link
change, and then not being cleared by netdev_tx_reset_queue. This change
corrects that.
In addition we were seeing dev_watchdog hangs on igb after running the
ethtool tests. We found this to be due to the fact that the ethtool test
runs the same logic as ndo_start_xmit, but we were never clearing the XOFF
flag since the loopback test in ethtool does not do byte queue accounting.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netdevice.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index b195a34440bb..4bf314fe2145 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1939,6 +1939,7 @@ static inline void netdev_completed_queue(struct net_device *dev, static inline void netdev_tx_reset_queue(struct netdev_queue *q) { #ifdef CONFIG_BQL + clear_bit(__QUEUE_STATE_STACK_XOFF, &q->state); dql_reset(&q->dql); #endif } |