From 4cb9be7ab47820a1fa747569f5f035a5f628c91b Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Tue, 21 Apr 2009 18:42:05 +0000 Subject: e1000/e1000e/igb/ixgb: do not use netif_wake_queue un-necessarily It was pointed out that the Intel wired ethernet drivers do not need to wake the tx queue since netif_carrier_on/off will take care of the qdisc management in order to guarantee the correct handling of the transmit routine enable state. Signed-off-by: Jesse Brandeburg Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000/e1000_main.c | 4 ++-- drivers/net/e1000e/netdev.c | 8 ++++---- drivers/net/igb/igb_main.c | 4 ++-- drivers/net/ixgb/ixgb_main.c | 5 ++--- 4 files changed, 10 insertions(+), 11 deletions(-) diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 112e6b0..71d4fe1 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -498,6 +498,8 @@ int e1000_up(struct e1000_adapter *adapter) e1000_irq_enable(adapter); + netif_wake_queue(adapter->netdev); + /* fire a link change interrupt to start the watchdog */ ew32(ICS, E1000_ICS_LSC); return 0; @@ -2591,7 +2593,6 @@ static void e1000_watchdog(unsigned long data) ew32(TCTL, tctl); netif_carrier_on(netdev); - netif_wake_queue(netdev); mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ)); adapter->smartspeed = 0; } else { @@ -2608,7 +2609,6 @@ static void e1000_watchdog(unsigned long data) printk(KERN_INFO "e1000: %s NIC Link is Down\n", netdev->name); netif_carrier_off(netdev); - netif_stop_queue(netdev); mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ)); /* 80003ES2LAN workaround-- diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 9048f8e..da6b37e 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -2826,6 +2826,8 @@ int e1000e_up(struct e1000_adapter *adapter) e1000_configure_msix(adapter); e1000_irq_enable(adapter); + netif_wake_queue(adapter->netdev); + /* fire a link change interrupt to start the watchdog */ ew32(ICS, E1000_ICS_LSC); return 0; @@ -2848,7 +2850,7 @@ void e1000e_down(struct e1000_adapter *adapter) ew32(RCTL, rctl & ~E1000_RCTL_EN); /* flush and sleep below */ - netif_tx_stop_all_queues(netdev); + netif_stop_queue(netdev); /* disable transmits in the hardware */ tctl = er32(TCTL); @@ -3130,7 +3132,7 @@ static int e1000_open(struct net_device *netdev) e1000_irq_enable(adapter); - netif_tx_start_all_queues(netdev); + netif_start_queue(netdev); /* fire a link status change interrupt to start the watchdog */ ew32(ICS, E1000_ICS_LSC); @@ -3600,7 +3602,6 @@ static void e1000_watchdog_task(struct work_struct *work) phy->ops.cfg_on_link_up(hw); netif_carrier_on(netdev); - netif_tx_wake_all_queues(netdev); if (!test_bit(__E1000_DOWN, &adapter->state)) mod_timer(&adapter->phy_info_timer, @@ -3614,7 +3615,6 @@ static void e1000_watchdog_task(struct work_struct *work) printk(KERN_INFO "e1000e: %s NIC Link is Down\n", adapter->netdev->name); netif_carrier_off(netdev); - netif_tx_stop_all_queues(netdev); if (!test_bit(__E1000_DOWN, &adapter->state)) mod_timer(&adapter->phy_info_timer, round_jiffies(jiffies + 2 * HZ)); diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index ceaa585..183235d 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -942,6 +942,8 @@ int igb_up(struct igb_adapter *adapter) rd32(E1000_ICR); igb_irq_enable(adapter); + netif_tx_start_all_queues(adapter->netdev); + /* Fire a link change interrupt to start the watchdog. */ wr32(E1000_ICS, E1000_ICS_LSC); return 0; @@ -2664,7 +2666,6 @@ static void igb_watchdog_task(struct work_struct *work) } netif_carrier_on(netdev); - netif_tx_wake_all_queues(netdev); igb_ping_all_vfs(adapter); @@ -2681,7 +2682,6 @@ static void igb_watchdog_task(struct work_struct *work) printk(KERN_INFO "igb: %s NIC Link is Down\n", netdev->name); netif_carrier_off(netdev); - netif_tx_stop_all_queues(netdev); igb_ping_all_vfs(adapter); diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c index ff741ca..cb9ecc4 100644 --- a/drivers/net/ixgb/ixgb_main.c +++ b/drivers/net/ixgb/ixgb_main.c @@ -266,6 +266,8 @@ ixgb_up(struct ixgb_adapter *adapter) napi_enable(&adapter->napi); ixgb_irq_enable(adapter); + netif_wake_queue(netdev); + mod_timer(&adapter->watchdog_timer, jiffies); return 0; @@ -1118,7 +1120,6 @@ ixgb_watchdog(unsigned long data) adapter->link_speed = 10000; adapter->link_duplex = FULL_DUPLEX; netif_carrier_on(netdev); - netif_wake_queue(netdev); } } else { if (netif_carrier_ok(netdev)) { @@ -1127,8 +1128,6 @@ ixgb_watchdog(unsigned long data) printk(KERN_INFO "ixgb: %s NIC Link is Down\n", netdev->name); netif_carrier_off(netdev); - netif_stop_queue(netdev); - } } -- cgit v1.1