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path: root/drivers/net/e100.c
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Diffstat (limited to 'drivers/net/e100.c')
-rw-r--r--drivers/net/e100.c37
1 files changed, 17 insertions, 20 deletions
diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 280313b9b069..e25f5ec2b279 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -539,6 +539,7 @@ struct nic {
539 struct csr __iomem *csr; 539 struct csr __iomem *csr;
540 enum scb_cmd_lo cuc_cmd; 540 enum scb_cmd_lo cuc_cmd;
541 unsigned int cbs_avail; 541 unsigned int cbs_avail;
542 struct napi_struct napi;
542 struct cb *cbs; 543 struct cb *cbs;
543 struct cb *cb_to_use; 544 struct cb *cb_to_use;
544 struct cb *cb_to_send; 545 struct cb *cb_to_send;
@@ -1974,35 +1975,31 @@ static irqreturn_t e100_intr(int irq, void *dev_id)
1974 if(stat_ack & stat_ack_rnr) 1975 if(stat_ack & stat_ack_rnr)
1975 nic->ru_running = RU_SUSPENDED; 1976 nic->ru_running = RU_SUSPENDED;
1976 1977
1977 if(likely(netif_rx_schedule_prep(netdev))) { 1978 if(likely(netif_rx_schedule_prep(netdev, &nic->napi))) {
1978 e100_disable_irq(nic); 1979 e100_disable_irq(nic);
1979 __netif_rx_schedule(netdev); 1980 __netif_rx_schedule(netdev, &nic->napi);
1980 } 1981 }
1981 1982
1982 return IRQ_HANDLED; 1983 return IRQ_HANDLED;
1983} 1984}
1984 1985
1985static int e100_poll(struct net_device *netdev, int *budget) 1986static int e100_poll(struct napi_struct *napi, int budget)
1986{ 1987{
1987 struct nic *nic = netdev_priv(netdev); 1988 struct nic *nic = container_of(napi, struct nic, napi);
1988 unsigned int work_to_do = min(netdev->quota, *budget); 1989 struct net_device *netdev = nic->netdev;
1989 unsigned int work_done = 0; 1990 int work_done = 0;
1990 int tx_cleaned; 1991 int tx_cleaned;
1991 1992
1992 e100_rx_clean(nic, &work_done, work_to_do); 1993 e100_rx_clean(nic, &work_done, budget);
1993 tx_cleaned = e100_tx_clean(nic); 1994 tx_cleaned = e100_tx_clean(nic);
1994 1995
1995 /* If no Rx and Tx cleanup work was done, exit polling mode. */ 1996 /* If no Rx and Tx cleanup work was done, exit polling mode. */
1996 if((!tx_cleaned && (work_done == 0)) || !netif_running(netdev)) { 1997 if((!tx_cleaned && (work_done == 0)) || !netif_running(netdev)) {
1997 netif_rx_complete(netdev); 1998 netif_rx_complete(netdev, napi);
1998 e100_enable_irq(nic); 1999 e100_enable_irq(nic);
1999 return 0;
2000 } 2000 }
2001 2001
2002 *budget -= work_done; 2002 return work_done;
2003 netdev->quota -= work_done;
2004
2005 return 1;
2006} 2003}
2007 2004
2008#ifdef CONFIG_NET_POLL_CONTROLLER 2005#ifdef CONFIG_NET_POLL_CONTROLLER
@@ -2071,7 +2068,7 @@ static int e100_up(struct nic *nic)
2071 nic->netdev->name, nic->netdev))) 2068 nic->netdev->name, nic->netdev)))
2072 goto err_no_irq; 2069 goto err_no_irq;
2073 netif_wake_queue(nic->netdev); 2070 netif_wake_queue(nic->netdev);
2074 netif_poll_enable(nic->netdev); 2071 napi_enable(&nic->napi);
2075 /* enable ints _after_ enabling poll, preventing a race between 2072 /* enable ints _after_ enabling poll, preventing a race between
2076 * disable ints+schedule */ 2073 * disable ints+schedule */
2077 e100_enable_irq(nic); 2074 e100_enable_irq(nic);
@@ -2089,7 +2086,7 @@ err_rx_clean_list:
2089static void e100_down(struct nic *nic) 2086static void e100_down(struct nic *nic)
2090{ 2087{
2091 /* wait here for poll to complete */ 2088 /* wait here for poll to complete */
2092 netif_poll_disable(nic->netdev); 2089 napi_disable(&nic->napi);
2093 netif_stop_queue(nic->netdev); 2090 netif_stop_queue(nic->netdev);
2094 e100_hw_reset(nic); 2091 e100_hw_reset(nic);
2095 free_irq(nic->pdev->irq, nic->netdev); 2092 free_irq(nic->pdev->irq, nic->netdev);
@@ -2572,14 +2569,13 @@ static int __devinit e100_probe(struct pci_dev *pdev,
2572 SET_ETHTOOL_OPS(netdev, &e100_ethtool_ops); 2569 SET_ETHTOOL_OPS(netdev, &e100_ethtool_ops);
2573 netdev->tx_timeout = e100_tx_timeout; 2570 netdev->tx_timeout = e100_tx_timeout;
2574 netdev->watchdog_timeo = E100_WATCHDOG_PERIOD; 2571 netdev->watchdog_timeo = E100_WATCHDOG_PERIOD;
2575 netdev->poll = e100_poll;
2576 netdev->weight = E100_NAPI_WEIGHT;
2577#ifdef CONFIG_NET_POLL_CONTROLLER 2572#ifdef CONFIG_NET_POLL_CONTROLLER
2578 netdev->poll_controller = e100_netpoll; 2573 netdev->poll_controller = e100_netpoll;
2579#endif 2574#endif
2580 strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); 2575 strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
2581 2576
2582 nic = netdev_priv(netdev); 2577 nic = netdev_priv(netdev);
2578 netif_napi_add(netdev, &nic->napi, e100_poll, E100_NAPI_WEIGHT);
2583 nic->netdev = netdev; 2579 nic->netdev = netdev;
2584 nic->pdev = pdev; 2580 nic->pdev = pdev;
2585 nic->msg_enable = (1 << debug) - 1; 2581 nic->msg_enable = (1 << debug) - 1;
@@ -2733,7 +2729,7 @@ static int e100_suspend(struct pci_dev *pdev, pm_message_t state)
2733 struct nic *nic = netdev_priv(netdev); 2729 struct nic *nic = netdev_priv(netdev);
2734 2730
2735 if (netif_running(netdev)) 2731 if (netif_running(netdev))
2736 netif_poll_disable(nic->netdev); 2732 napi_disable(&nic->napi);
2737 del_timer_sync(&nic->watchdog); 2733 del_timer_sync(&nic->watchdog);
2738 netif_carrier_off(nic->netdev); 2734 netif_carrier_off(nic->netdev);
2739 netif_device_detach(netdev); 2735 netif_device_detach(netdev);
@@ -2779,7 +2775,7 @@ static void e100_shutdown(struct pci_dev *pdev)
2779 struct nic *nic = netdev_priv(netdev); 2775 struct nic *nic = netdev_priv(netdev);
2780 2776
2781 if (netif_running(netdev)) 2777 if (netif_running(netdev))
2782 netif_poll_disable(nic->netdev); 2778 napi_disable(&nic->napi);
2783 del_timer_sync(&nic->watchdog); 2779 del_timer_sync(&nic->watchdog);
2784 netif_carrier_off(nic->netdev); 2780 netif_carrier_off(nic->netdev);
2785 2781
@@ -2804,12 +2800,13 @@ static void e100_shutdown(struct pci_dev *pdev)
2804static pci_ers_result_t e100_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) 2800static pci_ers_result_t e100_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2805{ 2801{
2806 struct net_device *netdev = pci_get_drvdata(pdev); 2802 struct net_device *netdev = pci_get_drvdata(pdev);
2803 struct nic *nic = netdev_priv(netdev);
2807 2804
2808 /* Similar to calling e100_down(), but avoids adpater I/O. */ 2805 /* Similar to calling e100_down(), but avoids adpater I/O. */
2809 netdev->stop(netdev); 2806 netdev->stop(netdev);
2810 2807
2811 /* Detach; put netif into state similar to hotplug unplug. */ 2808 /* Detach; put netif into state similar to hotplug unplug. */
2812 netif_poll_enable(netdev); 2809 napi_enable(&nic->napi);
2813 netif_device_detach(netdev); 2810 netif_device_detach(netdev);
2814 pci_disable_device(pdev); 2811 pci_disable_device(pdev);
2815 2812