diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/igb/igb_main.c | 77 |
1 files changed, 30 insertions, 47 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 87eed88d958..5a6fff622e4 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -106,7 +106,6 @@ static irqreturn_t igb_intr_msi(int irq, void *); static irqreturn_t igb_msix_other(int irq, void *); static irqreturn_t igb_msix_rx(int irq, void *); static irqreturn_t igb_msix_tx(int irq, void *); -static int igb_clean_rx_ring_msix(struct napi_struct *, int); #ifdef CONFIG_IGB_DCA static void igb_update_rx_dca(struct igb_ring *); static void igb_update_tx_dca(struct igb_ring *); @@ -3688,50 +3687,35 @@ static irqreturn_t igb_intr(int irq, void *data) return IRQ_HANDLED; } -/** - * igb_poll - NAPI Rx polling callback - * @napi: napi polling structure - * @budget: count of how many packets we should handle - **/ -static int igb_poll(struct napi_struct *napi, int budget) +static inline void igb_rx_irq_enable(struct igb_ring *rx_ring) { - struct igb_ring *rx_ring = container_of(napi, struct igb_ring, napi); struct igb_adapter *adapter = rx_ring->adapter; - struct net_device *netdev = adapter->netdev; - int tx_clean_complete, work_done = 0; - - /* this poll routine only supports one tx and one rx queue */ -#ifdef CONFIG_IGB_DCA - if (adapter->flags & IGB_FLAG_DCA_ENABLED) - igb_update_tx_dca(&adapter->tx_ring[0]); -#endif - tx_clean_complete = igb_clean_tx_irq(&adapter->tx_ring[0]); - -#ifdef CONFIG_IGB_DCA - if (adapter->flags & IGB_FLAG_DCA_ENABLED) - igb_update_rx_dca(&adapter->rx_ring[0]); -#endif - igb_clean_rx_irq_adv(&adapter->rx_ring[0], &work_done, budget); + struct e1000_hw *hw = &adapter->hw; - /* If no Tx and not enough Rx work done, exit the polling mode */ - if ((tx_clean_complete && (work_done < budget)) || - !netif_running(netdev)) { - if (adapter->itr_setting & 3) + if (adapter->itr_setting & 3) { + if (adapter->num_rx_queues == 1) igb_set_itr(adapter); - napi_complete(napi); - if (!test_bit(__IGB_DOWN, &adapter->state)) - igb_irq_enable(adapter); - return 0; + else + igb_update_ring_itr(rx_ring); } - return 1; + if (!test_bit(__IGB_DOWN, &adapter->state)) { + if (adapter->msix_entries) + wr32(E1000_EIMS, rx_ring->eims_value); + else + igb_irq_enable(adapter); + } } -static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget) +/** + * igb_poll - NAPI Rx polling callback + * @napi: napi polling structure + * @budget: count of how many packets we should handle + **/ +static int igb_poll(struct napi_struct *napi, int budget) { struct igb_ring *rx_ring = container_of(napi, struct igb_ring, napi); struct igb_adapter *adapter = rx_ring->adapter; - struct e1000_hw *hw = &adapter->hw; struct net_device *netdev = adapter->netdev; int work_done = 0; @@ -3741,23 +3725,22 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget) #endif igb_clean_rx_irq_adv(rx_ring, &work_done, budget); + if (rx_ring->buddy) { +#ifdef CONFIG_IGB_DCA + if (adapter->flags & IGB_FLAG_DCA_ENABLED) + igb_update_tx_dca(rx_ring->buddy); +#endif + if (!igb_clean_tx_irq(rx_ring->buddy)) + work_done = budget; + } + /* If not enough Rx work done, exit the polling mode */ - if ((work_done == 0) || !netif_running(netdev)) { + if ((work_done < budget) || !netif_running(netdev)) { napi_complete(napi); - - if (adapter->itr_setting & 3) { - if (adapter->num_rx_queues == 1) - igb_set_itr(adapter); - else - igb_update_ring_itr(rx_ring); - } - if (!test_bit(__IGB_DOWN, &adapter->state)) - wr32(E1000_EIMS, rx_ring->eims_value); - - return 0; + igb_rx_irq_enable(rx_ring); } - return 1; + return work_done; } /** |