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path: root/drivers/net/s2io.c
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Diffstat (limited to 'drivers/net/s2io.c')
-rw-r--r--drivers/net/s2io.c64
1 files changed, 56 insertions, 8 deletions
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index cac9fdd..3defe5d 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:
@@ -3915,8 +3959,8 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
txdp->Control_1 = 0;
txdp->Control_2 = 0;
#ifdef NETIF_F_TSO
- mss = skb_shinfo(skb)->tso_size;
- if (mss) {
+ mss = skb_shinfo(skb)->gso_size;
+ if (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV4) {
txdp->Control_1 |= TXD_TCP_LSO_EN;
txdp->Control_1 |= TXD_TCP_LSO_MSS(mss);
}
@@ -3936,10 +3980,10 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
}
frg_len = skb->len - skb->data_len;
- if (skb_shinfo(skb)->ufo_size) {
+ if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4) {
int ufo_size;
- ufo_size = skb_shinfo(skb)->ufo_size;
+ ufo_size = skb_shinfo(skb)->gso_size;
ufo_size &= ~7;
txdp->Control_1 |= TXD_UFO_EN;
txdp->Control_1 |= TXD_UFO_MSS(ufo_size);
@@ -3965,7 +4009,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
txdp->Host_Control = (unsigned long) skb;
txdp->Control_1 |= TXD_BUFFER0_SIZE(frg_len);
- if (skb_shinfo(skb)->ufo_size)
+ if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
txdp->Control_1 |= TXD_UFO_EN;
frg_cnt = skb_shinfo(skb)->nr_frags;
@@ -3980,12 +4024,12 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
(sp->pdev, frag->page, frag->page_offset,
frag->size, PCI_DMA_TODEVICE);
txdp->Control_1 = TXD_BUFFER0_SIZE(frag->size);
- if (skb_shinfo(skb)->ufo_size)
+ if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
txdp->Control_1 |= TXD_UFO_EN;
}
txdp->Control_1 |= TXD_GATHER_CODE_LAST;
- if (skb_shinfo(skb)->ufo_size)
+ if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
frg_cnt++; /* as Txd0 was used for inband header */
tx_fifo = mac_control->tx_FIFO_start[queue];
@@ -3999,7 +4043,7 @@ static int s2io_xmit(struct sk_buff *skb, struct net_device *dev)
if (mss)
val64 |= TX_FIFO_SPECIAL_FUNC;
#endif
- if (skb_shinfo(skb)->ufo_size)
+ if (skb_shinfo(skb)->gso_type == SKB_GSO_UDPV4)
val64 |= TX_FIFO_SPECIAL_FUNC;
writeq(val64, &tx_fifo->List_Control);
@@ -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;
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