diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/s2io.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index cac9fdd2e1d5..11daed495b97 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c @@ -2627,6 +2627,50 @@ no_rx: #endif /** + * s2io_netpoll - Rx interrupt service handler for netpoll support + * @dev : pointer to the device structure. + * Description: + * Polling 'interrupt' - used by things like netconsole to send skbs + * without having to re-enable interrupts. It's not called while + * the interrupt routine is executing. + */ + +#ifdef CONFIG_NET_POLL_CONTROLLER +static void s2io_netpoll(struct net_device *dev) +{ + nic_t *nic = dev->priv; + mac_info_t *mac_control; + struct config_param *config; + XENA_dev_config_t __iomem *bar0 = nic->bar0; + u64 val64; + int i; + + disable_irq(dev->irq); + + atomic_inc(&nic->isr_cnt); + mac_control = &nic->mac_control; + config = &nic->config; + + val64 = readq(&bar0->rx_traffic_int); + writeq(val64, &bar0->rx_traffic_int); + + for (i = 0; i < config->rx_ring_num; i++) + rx_intr_handler(&mac_control->rings[i]); + + for (i = 0; i < config->rx_ring_num; i++) { + if (fill_rx_buffers(nic, i) == -ENOMEM) { + DBG_PRINT(ERR_DBG, "%s:Out of memory", dev->name); + DBG_PRINT(ERR_DBG, " in Rx Netpoll!!\n"); + break; + } + } + atomic_dec(&nic->isr_cnt); + enable_irq(dev->irq); + return; +} +#endif + +/** * rx_intr_handler - Rx interrupt handler * @nic: device private variable. * Description: @@ -6967,6 +7011,10 @@ s2io_init_nic(struct pci_dev *pdev, const struct pci_device_id *pre) dev->weight = 32; #endif +#ifdef CONFIG_NET_POLL_CONTROLLER + dev->poll_controller = s2io_netpoll; +#endif + dev->features |= NETIF_F_SG | NETIF_F_IP_CSUM; if (sp->high_dma_flag == TRUE) dev->features |= NETIF_F_HIGHDMA; |