diff options
Diffstat (limited to 'drivers/net/e1000/e1000_main.c')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 41 |
1 files changed, 15 insertions, 26 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 37c46558e1c7..757d02f443a5 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -347,7 +347,6 @@ static void e1000_free_irq(struct e1000_adapter *adapter) static void e1000_irq_disable(struct e1000_adapter *adapter) { - atomic_inc(&adapter->irq_sem); E1000_WRITE_REG(&adapter->hw, IMC, ~0); E1000_WRITE_FLUSH(&adapter->hw); synchronize_irq(adapter->pdev->irq); @@ -361,10 +360,8 @@ e1000_irq_disable(struct e1000_adapter *adapter) static void e1000_irq_enable(struct e1000_adapter *adapter) { - if (likely(atomic_dec_and_test(&adapter->irq_sem))) { - E1000_WRITE_REG(&adapter->hw, IMS, IMS_ENABLE_MASK); - E1000_WRITE_FLUSH(&adapter->hw); - } + E1000_WRITE_REG(&adapter->hw, IMS, IMS_ENABLE_MASK); + E1000_WRITE_FLUSH(&adapter->hw); } static void @@ -638,7 +635,6 @@ e1000_down(struct e1000_adapter *adapter) #ifdef CONFIG_E1000_NAPI napi_disable(&adapter->napi); - atomic_set(&adapter->irq_sem, 0); #endif e1000_irq_disable(adapter); @@ -1396,7 +1392,6 @@ e1000_sw_init(struct e1000_adapter *adapter) #endif /* 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); @@ -3836,11 +3831,8 @@ e1000_intr_msi(int irq, void *data) #endif uint32_t icr = E1000_READ_REG(hw, ICR); -#ifdef CONFIG_E1000_NAPI - /* read ICR disables interrupts using IAM, so keep up with our - * enable/disable accounting */ - atomic_inc(&adapter->irq_sem); -#endif + /* in NAPI mode read ICR disables interrupts using IAM */ + if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) { hw->get_link_status = 1; /* 80003ES2LAN workaround-- For packet buffer work-around on @@ -3910,12 +3902,8 @@ e1000_intr(int irq, void *data) !(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. */ - if (likely(hw->mac_type >= e1000_82571)) - atomic_inc(&adapter->irq_sem); + /* Interrupt Auto-Mask...upon reading ICR, interrupts are masked. No + * need for the IMC write */ #endif if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) { @@ -3939,7 +3927,6 @@ e1000_intr(int irq, void *data) #ifdef CONFIG_E1000_NAPI if (unlikely(hw->mac_type < e1000_82571)) { /* disable interrupts, without the synchronize_irq bit */ - atomic_inc(&adapter->irq_sem); E1000_WRITE_REG(hw, IMC, ~0); E1000_WRITE_FLUSH(hw); } @@ -3964,10 +3951,8 @@ e1000_intr(int irq, void *data) * in dead lock. Writing IMC forces 82547 into * de-assertion state. */ - if (hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2) { - atomic_inc(&adapter->irq_sem); + if (hw->mac_type == e1000_82547 || hw->mac_type == e1000_82547_rev_2) E1000_WRITE_REG(hw, IMC, ~0); - } adapter->total_tx_bytes = 0; adapter->total_rx_bytes = 0; @@ -5001,7 +4986,8 @@ e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp) struct e1000_adapter *adapter = netdev_priv(netdev); uint32_t ctrl, rctl; - e1000_irq_disable(adapter); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_disable(adapter); adapter->vlgrp = grp; if (grp) { @@ -5038,7 +5024,8 @@ e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp) } } - e1000_irq_enable(adapter); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); } static void @@ -5064,9 +5051,11 @@ e1000_vlan_rx_kill_vid(struct net_device *netdev, uint16_t vid) struct e1000_adapter *adapter = netdev_priv(netdev); uint32_t vfta, index; - e1000_irq_disable(adapter); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_disable(adapter); vlan_group_set_device(adapter->vlgrp, vid, NULL); - e1000_irq_enable(adapter); + if (!test_bit(__E1000_DOWN, &adapter->flags)) + e1000_irq_enable(adapter); if ((adapter->hw.mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && |