aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/e1000/e1000_main.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/e1000/e1000_main.c')
-rw-r--r--drivers/net/e1000/e1000_main.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 4f37506ad374..13d57b0a88fa 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -3919,32 +3919,26 @@ e1000_clean(struct napi_struct *napi, int budget)
3919{ 3919{
3920 struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi); 3920 struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi);
3921 struct net_device *poll_dev = adapter->netdev; 3921 struct net_device *poll_dev = adapter->netdev;
3922 int tx_cleaned = 0, work_done = 0; 3922 int work_done = 0;
3923 3923
3924 /* Must NOT use netdev_priv macro here. */ 3924 /* Must NOT use netdev_priv macro here. */
3925 adapter = poll_dev->priv; 3925 adapter = poll_dev->priv;
3926 3926
3927 /* Keep link state information with original netdev */
3928 if (!netif_carrier_ok(poll_dev))
3929 goto quit_polling;
3930
3931 /* e1000_clean is called per-cpu. This lock protects 3927 /* e1000_clean is called per-cpu. This lock protects
3932 * tx_ring[0] from being cleaned by multiple cpus 3928 * tx_ring[0] from being cleaned by multiple cpus
3933 * simultaneously. A failure obtaining the lock means 3929 * simultaneously. A failure obtaining the lock means
3934 * tx_ring[0] is currently being cleaned anyway. */ 3930 * tx_ring[0] is currently being cleaned anyway. */
3935 if (spin_trylock(&adapter->tx_queue_lock)) { 3931 if (spin_trylock(&adapter->tx_queue_lock)) {
3936 tx_cleaned = e1000_clean_tx_irq(adapter, 3932 e1000_clean_tx_irq(adapter,
3937 &adapter->tx_ring[0]); 3933 &adapter->tx_ring[0]);
3938 spin_unlock(&adapter->tx_queue_lock); 3934 spin_unlock(&adapter->tx_queue_lock);
3939 } 3935 }
3940 3936
3941 adapter->clean_rx(adapter, &adapter->rx_ring[0], 3937 adapter->clean_rx(adapter, &adapter->rx_ring[0],
3942 &work_done, budget); 3938 &work_done, budget);
3943 3939
3944 /* If no Tx and not enough Rx work done, exit the polling mode */ 3940 /* If budget not fully consumed, exit the polling mode */
3945 if ((!tx_cleaned && (work_done == 0)) || 3941 if (work_done < budget) {
3946 !netif_running(poll_dev)) {
3947quit_polling:
3948 if (likely(adapter->itr_setting & 3)) 3942 if (likely(adapter->itr_setting & 3))
3949 e1000_set_itr(adapter); 3943 e1000_set_itr(adapter);
3950 netif_rx_complete(poll_dev, napi); 3944 netif_rx_complete(poll_dev, napi);