This mimics a change made in the e1000 driver that imitates a slick
tg3 way of avoiding grabbing the lock around restarting the tx queue.
Signed-off-by: Jesse Brandeburg <[EMAIL PROTECTED]>
Signed-off-by: Auke Kok <[EMAIL PROTECTED]>
Signed-off-by: John Ronciak <[EMAIL PROTECTED]>
---
drivers/net/ixgb/ixgb_main.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index b825850..a714c4d 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1800,13 +1800,13 @@ ixgb_clean_tx_irq(struct ixgb_adapter *a
tx_ring->next_to_clean = i;
- spin_lock(&adapter->tx_lock);
- if(cleaned && netif_queue_stopped(netdev) && netif_carrier_ok(netdev) &&
- (IXGB_DESC_UNUSED(tx_ring) > IXGB_TX_QUEUE_WAKE)) {
-
- netif_wake_queue(netdev);
+ if (unlikely(netif_queue_stopped(netdev))) {
+ spin_lock(&adapter->tx_lock);
+ if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev) &&
+ (IXGB_DESC_UNUSED(tx_ring) > IXGB_TX_QUEUE_WAKE))
+ netif_wake_queue(netdev);
+ spin_unlock(&adapter->tx_lock);
}
- spin_unlock(&adapter->tx_lock);
if(adapter->detect_tx_hung) {
/* detect a transmit hang in hardware, this serializes the
--
Auke Kok <[EMAIL PROTECTED]>
-
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