|
|
@@ -0,0 +1,156 @@
|
|
|
+--- a/drivers/net/ethernet/korina.c
|
|
|
++++ b/drivers/net/ethernet/korina.c
|
|
|
+@@ -122,8 +122,6 @@ struct korina_private {
|
|
|
+
|
|
|
+ int rx_irq;
|
|
|
+ int tx_irq;
|
|
|
+- int ovr_irq;
|
|
|
+- int und_irq;
|
|
|
+
|
|
|
+ spinlock_t lock; /* NIC xmit lock */
|
|
|
+
|
|
|
+@@ -890,8 +888,6 @@ static void korina_restart_task(struct w
|
|
|
+ */
|
|
|
+ disable_irq(lp->rx_irq);
|
|
|
+ disable_irq(lp->tx_irq);
|
|
|
+- disable_irq(lp->ovr_irq);
|
|
|
+- disable_irq(lp->und_irq);
|
|
|
+
|
|
|
+ writel(readl(&lp->tx_dma_regs->dmasm) |
|
|
|
+ DMA_STAT_FINI | DMA_STAT_ERR,
|
|
|
+@@ -910,40 +906,10 @@ static void korina_restart_task(struct w
|
|
|
+ }
|
|
|
+ korina_multicast_list(dev);
|
|
|
+
|
|
|
+- enable_irq(lp->und_irq);
|
|
|
+- enable_irq(lp->ovr_irq);
|
|
|
+ enable_irq(lp->tx_irq);
|
|
|
+ enable_irq(lp->rx_irq);
|
|
|
+ }
|
|
|
+
|
|
|
+-static void korina_clear_and_restart(struct net_device *dev, u32 value)
|
|
|
+-{
|
|
|
+- struct korina_private *lp = netdev_priv(dev);
|
|
|
+-
|
|
|
+- netif_stop_queue(dev);
|
|
|
+- writel(value, &lp->eth_regs->ethintfc);
|
|
|
+- schedule_work(&lp->restart_task);
|
|
|
+-}
|
|
|
+-
|
|
|
+-/* Ethernet Tx Underflow interrupt */
|
|
|
+-static irqreturn_t korina_und_interrupt(int irq, void *dev_id)
|
|
|
+-{
|
|
|
+- struct net_device *dev = dev_id;
|
|
|
+- struct korina_private *lp = netdev_priv(dev);
|
|
|
+- unsigned int und;
|
|
|
+-
|
|
|
+- spin_lock(&lp->lock);
|
|
|
+-
|
|
|
+- und = readl(&lp->eth_regs->ethintfc);
|
|
|
+-
|
|
|
+- if (und & ETH_INT_FC_UND)
|
|
|
+- korina_clear_and_restart(dev, und & ~ETH_INT_FC_UND);
|
|
|
+-
|
|
|
+- spin_unlock(&lp->lock);
|
|
|
+-
|
|
|
+- return IRQ_HANDLED;
|
|
|
+-}
|
|
|
+-
|
|
|
+ static void korina_tx_timeout(struct net_device *dev)
|
|
|
+ {
|
|
|
+ struct korina_private *lp = netdev_priv(dev);
|
|
|
+@@ -951,25 +917,6 @@ static void korina_tx_timeout(struct net
|
|
|
+ schedule_work(&lp->restart_task);
|
|
|
+ }
|
|
|
+
|
|
|
+-/* Ethernet Rx Overflow interrupt */
|
|
|
+-static irqreturn_t
|
|
|
+-korina_ovr_interrupt(int irq, void *dev_id)
|
|
|
+-{
|
|
|
+- struct net_device *dev = dev_id;
|
|
|
+- struct korina_private *lp = netdev_priv(dev);
|
|
|
+- unsigned int ovr;
|
|
|
+-
|
|
|
+- spin_lock(&lp->lock);
|
|
|
+- ovr = readl(&lp->eth_regs->ethintfc);
|
|
|
+-
|
|
|
+- if (ovr & ETH_INT_FC_OVR)
|
|
|
+- korina_clear_and_restart(dev, ovr & ~ETH_INT_FC_OVR);
|
|
|
+-
|
|
|
+- spin_unlock(&lp->lock);
|
|
|
+-
|
|
|
+- return IRQ_HANDLED;
|
|
|
+-}
|
|
|
+-
|
|
|
+ #ifdef CONFIG_NET_POLL_CONTROLLER
|
|
|
+ static void korina_poll_controller(struct net_device *dev)
|
|
|
+ {
|
|
|
+@@ -992,8 +939,7 @@ static int korina_open(struct net_device
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Install the interrupt handler
|
|
|
+- * that handles the Done Finished
|
|
|
+- * Ovr and Und Events */
|
|
|
++ * that handles the Done Finished */
|
|
|
+ ret = request_irq(lp->rx_irq, korina_rx_dma_interrupt,
|
|
|
+ 0, "Korina ethernet Rx", dev);
|
|
|
+ if (ret < 0) {
|
|
|
+@@ -1009,31 +955,10 @@ static int korina_open(struct net_device
|
|
|
+ goto err_free_rx_irq;
|
|
|
+ }
|
|
|
+
|
|
|
+- /* Install handler for overrun error. */
|
|
|
+- ret = request_irq(lp->ovr_irq, korina_ovr_interrupt,
|
|
|
+- 0, "Ethernet Overflow", dev);
|
|
|
+- if (ret < 0) {
|
|
|
+- printk(KERN_ERR "%s: unable to get OVR IRQ %d\n",
|
|
|
+- dev->name, lp->ovr_irq);
|
|
|
+- goto err_free_tx_irq;
|
|
|
+- }
|
|
|
+-
|
|
|
+- /* Install handler for underflow error. */
|
|
|
+- ret = request_irq(lp->und_irq, korina_und_interrupt,
|
|
|
+- 0, "Ethernet Underflow", dev);
|
|
|
+- if (ret < 0) {
|
|
|
+- printk(KERN_ERR "%s: unable to get UND IRQ %d\n",
|
|
|
+- dev->name, lp->und_irq);
|
|
|
+- goto err_free_ovr_irq;
|
|
|
+- }
|
|
|
+ mod_timer(&lp->media_check_timer, jiffies + 1);
|
|
|
+ out:
|
|
|
+ return ret;
|
|
|
+
|
|
|
+-err_free_ovr_irq:
|
|
|
+- free_irq(lp->ovr_irq, dev);
|
|
|
+-err_free_tx_irq:
|
|
|
+- free_irq(lp->tx_irq, dev);
|
|
|
+ err_free_rx_irq:
|
|
|
+ free_irq(lp->rx_irq, dev);
|
|
|
+ err_release:
|
|
|
+@@ -1051,8 +976,6 @@ static int korina_close(struct net_devic
|
|
|
+ /* Disable interrupts */
|
|
|
+ disable_irq(lp->rx_irq);
|
|
|
+ disable_irq(lp->tx_irq);
|
|
|
+- disable_irq(lp->ovr_irq);
|
|
|
+- disable_irq(lp->und_irq);
|
|
|
+
|
|
|
+ korina_abort_tx(dev);
|
|
|
+ tmp = readl(&lp->tx_dma_regs->dmasm);
|
|
|
+@@ -1072,8 +995,6 @@ static int korina_close(struct net_devic
|
|
|
+
|
|
|
+ free_irq(lp->rx_irq, dev);
|
|
|
+ free_irq(lp->tx_irq, dev);
|
|
|
+- free_irq(lp->ovr_irq, dev);
|
|
|
+- free_irq(lp->und_irq, dev);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+@@ -1113,8 +1034,6 @@ static int korina_probe(struct platform_
|
|
|
+
|
|
|
+ lp->rx_irq = platform_get_irq_byname(pdev, "korina_rx");
|
|
|
+ lp->tx_irq = platform_get_irq_byname(pdev, "korina_tx");
|
|
|
+- lp->ovr_irq = platform_get_irq_byname(pdev, "korina_ovr");
|
|
|
+- lp->und_irq = platform_get_irq_byname(pdev, "korina_und");
|
|
|
+
|
|
|
+ r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "korina_regs");
|
|
|
+ dev->base_addr = r->start;
|