diff options
Diffstat (limited to 'drivers/net/e1000e/netdev.c')
| -rw-r--r-- | drivers/net/e1000e/netdev.c | 37 |
1 files changed, 14 insertions, 23 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index fc5c63f4f57..f501dd5e7b1 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -836,9 +836,7 @@ static irqreturn_t e1000_intr_msi(int irq, void *data) struct e1000_hw *hw = &adapter->hw; u32 icr = er32(ICR); - /* read ICR disables interrupts using IAM, so keep up with our - * enable/disable accounting */ - atomic_inc(&adapter->irq_sem); + /* read ICR disables interrupts using IAM */ if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { hw->mac.get_link_status = 1; @@ -868,8 +866,6 @@ static irqreturn_t e1000_intr_msi(int irq, void *data) adapter->total_rx_bytes = 0; adapter->total_rx_packets = 0; __netif_rx_schedule(netdev, &adapter->napi); - } else { - atomic_dec(&adapter->irq_sem); } return IRQ_HANDLED; @@ -895,11 +891,8 @@ static irqreturn_t e1000_intr(int irq, void *data) if (!(icr & E1000_ICR_INT_ASSERTED)) return IRQ_NONE; - /* Interrupt Auto-Mask...upon reading ICR, - * interrupts are masked. No need for the - * IMC write, but it does mean we should - * account for it ASAP. */ - atomic_inc(&adapter->irq_sem); + /* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No + * need for the IMC write */ if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { hw->mac.get_link_status = 1; @@ -931,8 +924,6 @@ static irqreturn_t e1000_intr(int irq, void *data) adapter->total_rx_bytes = 0; adapter->total_rx_packets = 0; __netif_rx_schedule(netdev, &adapter->napi); - } else { - atomic_dec(&adapter->irq_sem); } return IRQ_HANDLED; @@ -983,7 +974,6 @@ static void e1000_irq_disable(struct e1000_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; - atomic_inc(&adapter->irq_sem); ew32(IMC, ~0); e1e_flush(); synchronize_irq(adapter->pdev->irq); @@ -996,10 +986,8 @@ static void e1000_irq_enable(struct e1000_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; - if (atomic_dec_and_test(&adapter->irq_sem)) { - ew32(IMS, IMS_ENABLE_MASK); - e1e_flush(); - } + ew32(IMS, IMS_ENABLE_MASK); + e1e_flush(); } /** @@ -1427,9 +1415,12 @@ static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) struct e1000_hw *hw = &adapter->hw; u32 vfta, index; - e1000_irq_disable(adapter); + if (!test_bit(__E1000_DOWN, &adapter->state)) + e1000_irq_disable(adapter); vlan_group_set_device(adapter->vlgrp, vid, NULL); - e1000_irq_enable(adapter); + + if (!test_bit(__E1000_DOWN, &adapter->state)) + e1000_irq_enable(adapter); if ((adapter->hw.mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN) && @@ -1480,7 +1471,8 @@ static void e1000_vlan_rx_register(struct net_device *netdev, struct e1000_hw *hw = &adapter->hw; u32 ctrl, rctl; - e1000_irq_disable(adapter); + if (!test_bit(__E1000_DOWN, &adapter->state)) + e1000_irq_disable(adapter); adapter->vlgrp = grp; if (grp) { @@ -1517,7 +1509,8 @@ static void e1000_vlan_rx_register(struct net_device *netdev, } } - e1000_irq_enable(adapter); + if (!test_bit(__E1000_DOWN, &adapter->state)) + e1000_irq_enable(adapter); } static void e1000_restore_vlan(struct e1000_adapter *adapter) @@ -2167,7 +2160,6 @@ void e1000e_down(struct e1000_adapter *adapter) msleep(10); napi_disable(&adapter->napi); - atomic_set(&adapter->irq_sem, 0); e1000_irq_disable(adapter); del_timer_sync(&adapter->watchdog_timer); @@ -2227,7 +2219,6 @@ static int __devinit e1000_sw_init(struct e1000_adapter *adapter) spin_lock_init(&adapter->tx_queue_lock); /* Explicitly disable IRQ since the NIC can be in any state. */ - atomic_set(&adapter->irq_sem, 0); e1000_irq_disable(adapter); spin_lock_init(&adapter->stats_lock); |