diff options
| -rw-r--r-- | target/linux/lantiq/patches/850-etop_irq.patch | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches/850-etop_irq.patch b/target/linux/lantiq/patches/850-etop_irq.patch new file mode 100644 index 0000000000..d0b86451d7 --- /dev/null +++ b/target/linux/lantiq/patches/850-etop_irq.patch @@ -0,0 +1,71 @@ +Index: linux-3.1.10/drivers/net/lantiq_etop.c +=================================================================== +--- linux-3.1.10.orig/drivers/net/lantiq_etop.c 2012-02-09 10:07:01.180680919 +0100 ++++ linux-3.1.10/drivers/net/lantiq_etop.c 2012-02-09 10:11:00.996691173 +0100 +@@ -203,8 +203,10 @@ + { + struct ltq_etop_chan *ch = container_of(napi, + struct ltq_etop_chan, napi); ++ struct ltq_etop_priv *priv = netdev_priv(ch->netdev); + int rx = 0; + int complete = 0; ++ unsigned long flags; + + while ((rx < budget) && !complete) { + struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc]; +@@ -218,7 +220,9 @@ + } + if (complete || !rx) { + napi_complete(&ch->napi); ++ spin_lock_irqsave(&priv->lock, flags); + ltq_dma_ack_irq(&ch->dma); ++ spin_unlock_irqrestore(&priv->lock, flags); + } + return rx; + } +@@ -248,7 +252,9 @@ + if (netif_tx_queue_stopped(txq)) + netif_tx_start_queue(txq); + napi_complete(&ch->napi); ++ spin_lock_irqsave(&priv->lock, flags); + ltq_dma_ack_irq(&ch->dma); ++ spin_unlock_irqrestore(&priv->lock, flags); + return 1; + } + +@@ -615,13 +621,17 @@ + { + struct ltq_etop_priv *priv = netdev_priv(dev); + int i; ++ unsigned long flags; + + for (i = 0; i < MAX_DMA_CHAN; i++) { + struct ltq_etop_chan *ch = &priv->ch[i]; + + if (!IS_TX(i) && (!IS_RX(i))) + continue; ++ spin_lock_irqsave(&priv->lock, flags); + ltq_dma_open(&ch->dma); ++ ltq_dma_ack_irq(&ch->dma); ++ spin_unlock_irqrestore(&priv->lock, flags); + napi_enable(&ch->napi); + } + if (priv->phydev) +@@ -635,6 +645,7 @@ + { + struct ltq_etop_priv *priv = netdev_priv(dev); + int i; ++ unsigned long flags; + + netif_tx_stop_all_queues(dev); + if (priv->phydev) +@@ -645,7 +656,9 @@ + if (!IS_RX(i) && !IS_TX(i)) + continue; + napi_disable(&ch->napi); ++ spin_lock_irqsave(&priv->lock, flags); + ltq_dma_close(&ch->dma); ++ spin_unlock_irqrestore(&priv->lock, flags); + } + return 0; + } |