diff options
| author | Auke Kok <auke-jan.h.kok@intel.com> | 2006-05-26 09:35:47 -0700 |
|---|---|---|
| committer | Auke Kok <juke-jan.h.kok@intel.com> | 2006-05-26 09:35:47 -0700 |
| commit | 3352a3b20ce880b17f185ad55bf27751f1c8edb9 (patch) | |
| tree | 48b968af4adf8fd1bea134c64f888b53c8fe8436 /drivers/net | |
| parent | 3f3dc0dd2086402b684545d66bb5ece93c76330b (diff) | |
| download | talos-op-linux-3352a3b20ce880b17f185ad55bf27751f1c8edb9.tar.gz talos-op-linux-3352a3b20ce880b17f185ad55bf27751f1c8edb9.zip | |
ixgb: remove lock access in the fast path
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 <jesse.brandeburg@intel.com>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: John Ronciak <john.ronciak@intel.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | 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 b8258509f9f9..a714c4d2d84b 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 *adapter) 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 |
