UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ixgbe: Clear out stray tx work on link down 

Ayyappan at VMware noticed that we're missing this check from ixgbe which
is in our other drivers.  The difference with this implementation from our
other drivers is that this checks all the tx queues rather than just tx[0].

Signed-off-by: Shannon Nelson <shannon.nelson@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:
Nelson, Shannon 2009-04-27 22:43:12 +00:00 committed by David S. Miller
parent 835462fc5d
commit bc59fcda67
1 changed files with 22 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/net/ixgbe/ixgbe_main.c
View File

@ -4110,6 +4110,9 @@ static void ixgbe_watchdog_task(struct work_struct *work)
struct ixgbe_hw *hw = &adapter->hw;
u32 link_speed = adapter->link_speed;
bool link_up = adapter->link_up;
int i;
struct ixgbe_ring *tx_ring;
int some_tx_pending = 0;
adapter->flags |= IXGBE_FLAG_IN_WATCHDOG_TASK;
@ -4167,6 +4170,25 @@ static void ixgbe_watchdog_task(struct work_struct *work)
}
}
if (!netif_carrier_ok(netdev)) {
for (i = 0; i < adapter->num_tx_queues; i++) {
tx_ring = &adapter->tx_ring[i];
if (tx_ring->next_to_use != tx_ring->next_to_clean) {
some_tx_pending = 1;
break;
}
}
if (some_tx_pending) {
/* We've lost link, so the controller stops DMA,
* but we've got queued Tx work that's never going
* to get done, so reset controller to flush Tx.
* (Do the reset outside of interrupt context).
*/
schedule_work(&adapter->reset_task);
}
}
ixgbe_update_stats(adapter);
adapter->flags &= ~IXGBE_FLAG_IN_WATCHDOG_TASK;
}