71 lines
1.8 KiB
Diff
71 lines
1.8 KiB
Diff
Index: linux-3.1.10/drivers/net/lantiq_etop.c
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===================================================================
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--- linux-3.1.10.orig/drivers/net/lantiq_etop.c 2012-02-23 09:06:47.274557678 +0100
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+++ linux-3.1.10/drivers/net/lantiq_etop.c 2012-02-23 09:07:03.006558044 +0100
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@@ -203,8 +203,10 @@
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{
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struct ltq_etop_chan *ch = container_of(napi,
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struct ltq_etop_chan, napi);
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+ struct ltq_etop_priv *priv = netdev_priv(ch->netdev);
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int rx = 0;
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int complete = 0;
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+ unsigned long flags;
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while ((rx < budget) && !complete) {
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struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
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@@ -218,7 +220,9 @@
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}
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if (complete || !rx) {
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napi_complete(&ch->napi);
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+ spin_lock_irqsave(&priv->lock, flags);
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ltq_dma_ack_irq(&ch->dma);
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+ spin_unlock_irqrestore(&priv->lock, flags);
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}
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return rx;
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}
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@@ -248,7 +252,9 @@
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if (netif_tx_queue_stopped(txq))
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netif_tx_start_queue(txq);
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napi_complete(&ch->napi);
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+ spin_lock_irqsave(&priv->lock, flags);
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ltq_dma_ack_irq(&ch->dma);
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+ spin_unlock_irqrestore(&priv->lock, flags);
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return 1;
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}
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@@ -615,13 +621,16 @@
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{
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struct ltq_etop_priv *priv = netdev_priv(dev);
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int i;
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+ unsigned long flags;
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for (i = 0; i < MAX_DMA_CHAN; i++) {
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struct ltq_etop_chan *ch = &priv->ch[i];
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if (!IS_TX(i) && (!IS_RX(i)))
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continue;
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+ spin_lock_irqsave(&priv->lock, flags);
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ltq_dma_open(&ch->dma);
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+ spin_unlock_irqrestore(&priv->lock, flags);
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napi_enable(&ch->napi);
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}
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if (priv->phydev)
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@@ -635,6 +644,7 @@
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{
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struct ltq_etop_priv *priv = netdev_priv(dev);
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int i;
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+ unsigned long flags;
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netif_tx_stop_all_queues(dev);
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if (priv->phydev)
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@@ -645,7 +655,9 @@
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if (!IS_RX(i) && !IS_TX(i))
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continue;
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napi_disable(&ch->napi);
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+ spin_lock_irqsave(&priv->lock, flags);
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ltq_dma_close(&ch->dma);
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+ spin_unlock_irqrestore(&priv->lock, flags);
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}
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return 0;
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}
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