patch-2.4.27 linux-2.4.27/drivers/net/via-rhine.c

• Lines: 224
• Date: 2004-08-07 16:26:05.160367569 -0700
• Orig file: linux-2.4.26/drivers/net/via-rhine.c
• Orig date: 2003-11-28 10:26:20.000000000 -0800

diff -urN linux-2.4.26/drivers/net/via-rhine.c linux-2.4.27/drivers/net/via-rhine.c
@@ -28,10 +28,10 @@
 
 
 	Linux kernel version history:
-	
+
 	LK1.1.0:
 	- Jeff Garzik: softnet 'n stuff
-	
+
 	LK1.1.1:
 	- Justin Guyett: softnet and locking fixes
 	- Jeff Garzik: use PCI interface
@@ -58,7 +58,7 @@
 	LK1.1.6:
 	- Urban Widmark: merges from Beckers 1.08b version (VT6102 + mdio)
 	                 set netif_running_on/off on startup, del_timer_sync
-	
+
 	LK1.1.7:
 	- Manfred Spraul: added reset into tx_timeout
 
@@ -83,7 +83,7 @@
 	LK1.1.13 (jgarzik):
 	- Add ethtool support
 	- Replace some MII-related magic numbers with constants
-	
+
 	LK1.1.14 (Ivan G.):
  	- fixes comments for Rhine-III
 	- removes W_MAX_TIMEOUT (unused)
@@ -92,7 +92,7 @@
 	- sends chip_id as a parameter to wait_for_reset since np is not
 	  initialized on first call
 	- changes mmio "else if (chip_id==VT6102)" to "else" so it will work
-	  for Rhine-III's (documentation says same bit is correct)		
+	  for Rhine-III's (documentation says same bit is correct)
 	- transmit frame queue message is off by one - fixed
 	- adds IntrNormalSummary to "Something Wicked" exclusion list
 	  so normal interrupts will not trigger the message (src: Donald Becker)
@@ -316,10 +316,10 @@
 
 The driver runs as two independent, single-threaded flows of control.  One
 is the send-packet routine, which enforces single-threaded use by the
-dev->priv->lock spinlock. The other thread is the interrupt handler, which 
+dev->priv->lock spinlock. The other thread is the interrupt handler, which
 is single threaded by the hardware and interrupt handling software.
 
-The send packet thread has partial control over the Tx ring. It locks the 
+The send packet thread has partial control over the Tx ring. It locks the
 dev->priv->lock whenever it's queuing a Tx packet. If the next slot in the ring
 is not available it stops the transmit queue by calling netif_stop_queue.
 
@@ -615,6 +615,15 @@
 			break;
 }
 
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void via_rhine_poll(struct net_device *dev)
+{
+	disable_irq(dev->irq);
+	via_rhine_interrupt(dev->irq, (void *)dev, NULL);
+	enable_irq(dev->irq);
+}
+#endif
+
 static int __devinit via_rhine_init_one (struct pci_dev *pdev,
 					 const struct pci_device_id *ent)
 {
@@ -630,7 +639,7 @@
 #ifdef USE_MEM
 	long ioaddr0;
 #endif
-	
+
 /* when built into the kernel, we only print version if device is found */
 #ifndef MODULE
 	static int printed_version;
@@ -651,7 +660,7 @@
 		printk(KERN_ERR "32-bit PCI DMA addresses not supported by the card!?\n");
 		goto err_out;
 	}
-	
+
 	/* sanity check */
 	if ((pci_resource_len (pdev, 0) < io_size) ||
 	    (pci_resource_len (pdev, 1) < io_size)) {
@@ -671,7 +680,8 @@
 		goto err_out;
 	}
 	SET_MODULE_OWNER(dev);
-	
+	SET_NETDEV_DEV(dev, &pdev->dev);
+
 	if (pci_request_regions(pdev, shortname))
 		goto err_out_free_netdev;
 
@@ -783,6 +793,9 @@
 	dev->ethtool_ops = &netdev_ethtool_ops;
 	dev->tx_timeout = via_rhine_tx_timeout;
 	dev->watchdog_timeo = TX_TIMEOUT;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	dev->poll_controller = via_rhine_poll;
+#endif
 	if (np->drv_flags & ReqTxAlign)
 		dev->features |= NETIF_F_SG|NETIF_F_HW_CSUM;
 
@@ -834,6 +847,8 @@
 					netif_carrier_on(dev);
 				else
 					netif_carrier_off(dev);
+
+				break;
 			}
 		}
 		np->mii_cnt = phy_idx;
@@ -867,7 +882,7 @@
 #endif
 	pci_release_regions(pdev);
 err_out_free_netdev:
-	kfree (dev);
+	free_netdev (dev);
 err_out:
 	return -ENODEV;
 }
@@ -878,7 +893,7 @@
 	void *ring;
 	dma_addr_t ring_dma;
 
-	ring = pci_alloc_consistent(np->pdev, 
+	ring = pci_alloc_consistent(np->pdev,
 				    RX_RING_SIZE * sizeof(struct rx_desc) +
 				    TX_RING_SIZE * sizeof(struct tx_desc),
 				    &ring_dma);
@@ -890,7 +905,7 @@
 		np->tx_bufs = pci_alloc_consistent(np->pdev, PKT_BUF_SZ * TX_RING_SIZE,
 								   &np->tx_bufs_dma);
 		if (np->tx_bufs == NULL) {
-			pci_free_consistent(np->pdev, 
+			pci_free_consistent(np->pdev,
 				    RX_RING_SIZE * sizeof(struct rx_desc) +
 				    TX_RING_SIZE * sizeof(struct tx_desc),
 				    ring, ring_dma);
@@ -910,7 +925,7 @@
 {
 	struct netdev_private *np = dev->priv;
 
-	pci_free_consistent(np->pdev, 
+	pci_free_consistent(np->pdev,
 			    RX_RING_SIZE * sizeof(struct rx_desc) +
 			    TX_RING_SIZE * sizeof(struct tx_desc),
 			    np->rx_ring, np->rx_ring_dma);
@@ -935,7 +950,7 @@
 	np->rx_buf_sz = (dev->mtu <= 1500 ? PKT_BUF_SZ : dev->mtu + 32);
 	np->rx_head_desc = &np->rx_ring[0];
 	next = np->rx_ring_dma;
-	
+
 	/* Init the ring entries */
 	for (i = 0; i < RX_RING_SIZE; i++) {
 		np->rx_ring[i].rx_status = 0;
@@ -1138,7 +1153,7 @@
 	if (debug > 1)
 		printk(KERN_DEBUG "%s: via_rhine_open() irq %d.\n",
 			   dev->name, np->pdev->irq);
-	
+
 	i = alloc_ring(dev);
 	if (i)
 		return i;
@@ -1253,7 +1268,7 @@
 	/* Reinitialize the hardware. */
 	wait_for_reset(dev, np->chip_id, dev->name);
 	init_registers(dev);
-	
+
 	spin_unlock(&np->lock);
 	enable_irq(np->pdev->irq);
 
@@ -1303,7 +1318,7 @@
 		np->tx_ring[entry].addr = cpu_to_le32(np->tx_skbuff_dma[entry]);
 	}
 
-	np->tx_ring[entry].desc_length = 
+	np->tx_ring[entry].desc_length =
 		cpu_to_le32(TXDESC | (skb->len >= ETH_ZLEN ? skb->len : ETH_ZLEN));
 
 	/* lock eth irq */
@@ -1351,7 +1366,7 @@
 	int handled = 0;
 
 	ioaddr = dev->base_addr;
-	
+
 	while ((intr_status = get_intr_status(dev))) {
 		handled = 1;
 
@@ -1569,7 +1584,7 @@
 				break;			/* Better luck next round. */
 			skb->dev = dev;			/* Mark as being used by this device. */
 			np->rx_skbuff_dma[entry] =
-				pci_map_single(np->pdev, skb->tail, np->rx_buf_sz, 
+				pci_map_single(np->pdev, skb->tail, np->rx_buf_sz,
 							   PCI_DMA_FROMDEVICE);
 			np->rx_ring[entry].addr = cpu_to_le32(np->rx_skbuff_dma[entry]);
 		}
@@ -1877,7 +1892,7 @@
 static void __devexit via_rhine_remove_one (struct pci_dev *pdev)
 {
 	struct net_device *dev = pci_get_drvdata(pdev);
-	
+
 	unregister_netdev(dev);
 
 	pci_release_regions(pdev);
@@ -1886,7 +1901,7 @@
 	iounmap((char *)(dev->base_addr));
 #endif
 
-	kfree(dev);
+	free_netdev(dev);
 	pci_disable_device(pdev);
 	pci_set_drvdata(pdev, NULL);
 }