Displaying 3 results from an estimated 3 matches for "xenvif_start_xmit".
2012 Aug 13
9
[PATCH RFC] xen/netback: Count ring slots properly when larger MTU sizes are used
Hi,
I ran into an issue where netback driver is crashing with BUG_ON(npo.meta_prod > ARRAY_SIZE(netbk->meta)). It is happening in Intel 10Gbps network when larger mtu values are used. The problem seems to be the way the slots are counted. After applying this patch things ran fine in my environment. I request to validate my changes.
Thanks
Siva
2013 Feb 15
1
[PATCH 7/8] netback: split event channels support
...lable(vif))
netif_wake_queue(vif->dev);
return IRQ_HANDLED;
}
+/* Used when feature-split-event-channels == 0 */
+static irqreturn_t xenvif_interrupt(int irq, void *dev_id)
+{
+ xenvif_tx_interrupt(irq, dev_id);
+ xenvif_rx_interrupt(irq, dev_id);
+ return IRQ_HANDLED;
+}
+
static int xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct xenvif *vif = netdev_priv(dev);
@@ -125,13 +145,15 @@ static struct net_device_stats *xenvif_get_stats(struct net_device *dev)
static void xenvif_up(struct xenvif *vif)
{
xen_netbk_add_xenvif(vif);
- enable_irq(vif->irq);
+ enable_irq(...
2013 Jul 02
3
[PATCH RFC] xen-netback: remove guest RX path dependence on MAX_SKB_FRAGS
...ons(-)
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 087d2db..5c10e87 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -96,18 +96,24 @@ static irqreturn_t xenvif_interrupt(int irq, void *dev_id)
static int xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct xenvif *vif = netdev_priv(dev);
+ unsigned int ring_slots_required;
BUG_ON(skb->dev != dev);
if (vif->netbk == NULL)
goto drop;
+ ring_slots_required = xen_netbk_count_skb_slots(vif, skb);
+
+ /* Reserve ring slots for the...