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-rw-r--r--drivers/net/sky2.c20
-rw-r--r--include/linux/netdevice.h18
2 files changed, 26 insertions, 12 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 67b0eab16589..618fde8622ca 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -2093,6 +2093,7 @@ static int sky2_poll(struct net_device *dev0, int *budget)
int work_done = 0;
u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
+ restart_poll:
if (unlikely(status & ~Y2_IS_STAT_BMU)) {
if (status & Y2_IS_HW_ERR)
sky2_hw_intr(hw);
@@ -2123,7 +2124,7 @@ static int sky2_poll(struct net_device *dev0, int *budget)
}
if (status & Y2_IS_STAT_BMU) {
- work_done = sky2_status_intr(hw, work_limit);
+ work_done += sky2_status_intr(hw, work_limit - work_done);
*budget -= work_done;
dev0->quota -= work_done;
@@ -2133,9 +2134,22 @@ static int sky2_poll(struct net_device *dev0, int *budget)
sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);
}
- netif_rx_complete(dev0);
+ local_irq_disable();
+ __netif_rx_complete(dev0);
status = sky2_read32(hw, B0_Y2_SP_LISR);
+
+ if (unlikely(status)) {
+ /* More work pending, try and keep going */
+ if (__netif_rx_schedule_prep(dev0)) {
+ __netif_rx_reschedule(dev0, work_done);
+ status = sky2_read32(hw, B0_Y2_SP_EISR);
+ local_irq_enable();
+ goto restart_poll;
+ }
+ }
+
+ local_irq_enable();
return 0;
}
@@ -2153,8 +2167,6 @@ static irqreturn_t sky2_intr(int irq, void *dev_id, struct pt_regs *regs)
prefetch(&hw->st_le[hw->st_idx]);
if (likely(__netif_rx_schedule_prep(dev0)))
__netif_rx_schedule(dev0);
- else
- printk(KERN_DEBUG PFX "irq race detected\n");
return IRQ_HANDLED;
}
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 40ccf8cc4239..01db7b88a2b1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -829,19 +829,21 @@ static inline void netif_rx_schedule(struct net_device *dev)
__netif_rx_schedule(dev);
}
-/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete().
- * Do not inline this?
- */
+
+static inline void __netif_rx_reschedule(struct net_device *dev, int undo)
+{
+ dev->quota += undo;
+ list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list);
+ __raise_softirq_irqoff(NET_RX_SOFTIRQ);
+}
+
+/* Try to reschedule poll. Called by dev->poll() after netif_rx_complete(). */
static inline int netif_rx_reschedule(struct net_device *dev, int undo)
{
if (netif_rx_schedule_prep(dev)) {
unsigned long flags;
-
- dev->quota += undo;
-
local_irq_save(flags);
- list_add_tail(&dev->poll_list, &__get_cpu_var(softnet_data).poll_list);
- __raise_softirq_irqoff(NET_RX_SOFTIRQ);
+ __netif_rx_reschedule(dev, undo);
local_irq_restore(flags);
return 1;
}

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