Merge branch 'upstream-davem' of master.kernel.org:/pub/scm/linux/ker…

…nel/git/jgarzik/netdev-2.6

drivers/net/Kconfig

@@ -1172,7 +1172,7 @@ config ETH16I
 
 config NE2000
 	tristate "NE2000/NE1000 support"
-	depends on NET_ISA || (Q40 && m) || M32R || TOSHIBA_RBTX4927 || TOSHIBA_RBTX4938
+	depends on NET_ISA || (Q40 && m) || M32R || MACH_TX49XX
 	select CRC32
 	---help---
 	  If you have a network (Ethernet) card of this type, say Y and read

drivers/net/acenic.c

@@ -52,7 +52,6 @@
 
 #include <linux/module.h>
 #include <linux/moduleparam.h>
-#include <linux/version.h>
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/ioport.h>

drivers/net/arm/ixp4xx_eth.c

@@ -551,7 +551,7 @@ static int eth_poll(struct napi_struct *napi, int budget)
 		if ((skb = netdev_alloc_skb(dev, RX_BUFF_SIZE))) {
 			phys = dma_map_single(&dev->dev, skb->data,
 					      RX_BUFF_SIZE, DMA_FROM_DEVICE);
-			if (dma_mapping_error(phys)) {
+			if (dma_mapping_error(&dev->dev, phys)) {
 				dev_kfree_skb(skb);
 				skb = NULL;
 			}
@@ -698,7 +698,7 @@ static int eth_xmit(struct sk_buff *skb, struct net_device *dev)
 #endif
 
 	phys = dma_map_single(&dev->dev, mem, bytes, DMA_TO_DEVICE);
-	if (dma_mapping_error(phys)) {
+	if (dma_mapping_error(&dev->dev, phys)) {
 #ifdef __ARMEB__
 		dev_kfree_skb(skb);
 #else
@@ -883,7 +883,7 @@ static int init_queues(struct port *port)
 		desc->buf_len = MAX_MRU;
 		desc->data = dma_map_single(&port->netdev->dev, data,
 					    RX_BUFF_SIZE, DMA_FROM_DEVICE);
-		if (dma_mapping_error(desc->data)) {
+		if (dma_mapping_error(&port->netdev->dev, desc->data)) {
 			free_buffer(buff);
 			return -EIO;
 		}

drivers/net/atl1e/atl1e_ethtool.c

@@ -355,7 +355,7 @@ static int atl1e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 	struct atl1e_adapter *adapter = netdev_priv(netdev);
 
 	if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
-			    WAKE_MCAST | WAKE_BCAST | WAKE_MCAST))
+			    WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
 		return -EOPNOTSUPP;
 	/* these settings will always override what we currently have */
 	adapter->wol = 0;

drivers/net/au1000_eth.c

@@ -807,7 +807,7 @@ static struct net_device * au1000_probe(int port_num)
 static int au1000_init(struct net_device *dev)
 {
 	struct au1000_private *aup = (struct au1000_private *) dev->priv;
-	u32 flags;
+	unsigned long flags;
 	int i;
 	u32 control;
 

drivers/net/ax88796.c

@@ -554,7 +554,7 @@ static int ax_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 
 	spin_lock_irqsave(&ax->mii_lock, flags);
 	mii_ethtool_gset(&ax->mii, cmd);
-	spin_lock_irqsave(&ax->mii_lock, flags);
+	spin_unlock_irqrestore(&ax->mii_lock, flags);
 
 	return 0;
 }
@@ -567,7 +567,7 @@ static int ax_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 
 	spin_lock_irqsave(&ax->mii_lock, flags);
 	rc = mii_ethtool_sset(&ax->mii, cmd);
-	spin_lock_irqsave(&ax->mii_lock, flags);
+	spin_unlock_irqrestore(&ax->mii_lock, flags);
 
 	return rc;
 }

drivers/net/bnx2x_link.c

@@ -21,7 +21,6 @@
 #include <linux/delay.h>
 #include <linux/ethtool.h>
 #include <linux/mutex.h>
-#include <linux/version.h>
 
 #include "bnx2x_reg.h"
 #include "bnx2x_fw_defs.h"

drivers/net/bnx2x_main.c

@@ -44,7 +44,6 @@
 #include <net/ip.h>
 #include <net/tcp.h>
 #include <net/checksum.h>
-#include <linux/version.h>
 #include <net/ip6_checksum.h>
 #include <linux/workqueue.h>
 #include <linux/crc32.h>

drivers/net/cpmac.c

@@ -26,7 +26,6 @@
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/delay.h>
-#include <linux/version.h>
 
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>

drivers/net/e1000e/defines.h

@@ -389,7 +389,7 @@
 
 /* Interrupt Cause Set */
 #define E1000_ICS_LSC       E1000_ICR_LSC       /* Link Status Change */
-#define E1000_ICS_RXDMT0    E1000_ICR_RXDMT0    /* rx desc min. threshold */
+#define E1000_ICS_RXSEQ     E1000_ICR_RXSEQ     /* Rx sequence error */
 #define E1000_ICS_RXDMT0    E1000_ICR_RXDMT0    /* Rx desc min. threshold */
 
 /* Transmit Descriptor Control */

drivers/net/e1000e/e1000.h

@@ -326,6 +326,7 @@ struct e1000_info {
 #define FLAG_RX_CSUM_ENABLED              (1 << 28)
 #define FLAG_TSO_FORCE                    (1 << 29)
 #define FLAG_RX_RESTART_NOW               (1 << 30)
+#define FLAG_MSI_TEST_FAILED              (1 << 31)
 
 #define E1000_RX_DESC_PS(R, i)	    \
 	(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))

drivers/net/e1000e/ethtool.c

@@ -177,7 +177,7 @@ static u32 e1000_get_link(struct net_device *netdev)
 	u32 status;
 
 	status = er32(STATUS);
-	return (status & E1000_STATUS_LU);
+	return (status & E1000_STATUS_LU) ? 1 : 0;
 }
 
 static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)

drivers/net/e1000e/netdev.c

@@ -510,9 +510,12 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
 			    netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
 			if (new_skb) {
 				skb_reserve(new_skb, NET_IP_ALIGN);
-				memcpy(new_skb->data - NET_IP_ALIGN,
-				       skb->data - NET_IP_ALIGN,
-				       length + NET_IP_ALIGN);
+				skb_copy_to_linear_data_offset(new_skb,
+							       -NET_IP_ALIGN,
+							       (skb->data -
+								NET_IP_ALIGN),
+							       (length +
+								NET_IP_ALIGN));
 				/* save the skb in buffer_info as good */
 				buffer_info->skb = skb;
 				skb = new_skb;
@@ -1233,26 +1236,36 @@ static irqreturn_t e1000_intr(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
+/**
+ * e1000_request_irq - initialize interrupts
+ *
+ * Attempts to configure interrupts using the best available
+ * capabilities of the hardware and kernel.
+ **/
 static int e1000_request_irq(struct e1000_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
-	irq_handler_t handler = e1000_intr;
 	int irq_flags = IRQF_SHARED;
 	int err;
 
-	if (!pci_enable_msi(adapter->pdev)) {
-		adapter->flags |= FLAG_MSI_ENABLED;
-		handler = e1000_intr_msi;
-		irq_flags = 0;
+	if (!(adapter->flags & FLAG_MSI_TEST_FAILED)) {
+		err = pci_enable_msi(adapter->pdev);
+		if (!err) {
+			adapter->flags |= FLAG_MSI_ENABLED;
+			irq_flags = 0;
+		}
 	}
 
-	err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
-			  netdev);
+	err = request_irq(adapter->pdev->irq,
+			  ((adapter->flags & FLAG_MSI_ENABLED) ?
+				&e1000_intr_msi : &e1000_intr),
+			  irq_flags, netdev->name, netdev);
 	if (err) {
-		e_err("Unable to allocate %s interrupt (return: %d)\n",
-		      adapter->flags & FLAG_MSI_ENABLED ? "MSI":"INTx",	err);
-		if (adapter->flags & FLAG_MSI_ENABLED)
+		if (adapter->flags & FLAG_MSI_ENABLED) {
 			pci_disable_msi(adapter->pdev);
+			adapter->flags &= ~FLAG_MSI_ENABLED;
+		}
+		e_err("Unable to allocate interrupt, Error: %d\n", err);
 	}
 
 	return err;
@@ -2591,6 +2604,135 @@ static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
 	return -ENOMEM;
 }
 
+/**
+ * e1000_intr_msi_test - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+static irqreturn_t e1000_intr_msi_test(int irq, void *data)
+{
+	struct net_device *netdev = data;
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	u32 icr = er32(ICR);
+
+	e_dbg("%s: icr is %08X\n", netdev->name, icr);
+	if (icr & E1000_ICR_RXSEQ) {
+		adapter->flags &= ~FLAG_MSI_TEST_FAILED;
+		wmb();
+	}
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * e1000_test_msi_interrupt - Returns 0 for successful test
+ * @adapter: board private struct
+ *
+ * code flow taken from tg3.c
+ **/
+static int e1000_test_msi_interrupt(struct e1000_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct e1000_hw *hw = &adapter->hw;
+	int err;
+
+	/* poll_enable hasn't been called yet, so don't need disable */
+	/* clear any pending events */
+	er32(ICR);
+
+	/* free the real vector and request a test handler */
+	e1000_free_irq(adapter);
+
+	/* Assume that the test fails, if it succeeds then the test
+	 * MSI irq handler will unset this flag */
+	adapter->flags |= FLAG_MSI_TEST_FAILED;
+
+	err = pci_enable_msi(adapter->pdev);
+	if (err)
+		goto msi_test_failed;
+
+	err = request_irq(adapter->pdev->irq, &e1000_intr_msi_test, 0,
+			  netdev->name, netdev);
+	if (err) {
+		pci_disable_msi(adapter->pdev);
+		goto msi_test_failed;
+	}
+
+	wmb();
+
+	e1000_irq_enable(adapter);
+
+	/* fire an unusual interrupt on the test handler */
+	ew32(ICS, E1000_ICS_RXSEQ);
+	e1e_flush();
+	msleep(50);
+
+	e1000_irq_disable(adapter);
+
+	rmb();
+
+	if (adapter->flags & FLAG_MSI_TEST_FAILED) {
+		err = -EIO;
+		e_info("MSI interrupt test failed!\n");
+	}
+
+	free_irq(adapter->pdev->irq, netdev);
+	pci_disable_msi(adapter->pdev);
+
+	if (err == -EIO)
+		goto msi_test_failed;
+
+	/* okay so the test worked, restore settings */
+	e_dbg("%s: MSI interrupt test succeeded!\n", netdev->name);
+msi_test_failed:
+	/* restore the original vector, even if it failed */
+	e1000_request_irq(adapter);
+	return err;
+}
+
+/**
+ * e1000_test_msi - Returns 0 if MSI test succeeds or INTx mode is restored
+ * @adapter: board private struct
+ *
+ * code flow taken from tg3.c, called with e1000 interrupts disabled.
+ **/
+static int e1000_test_msi(struct e1000_adapter *adapter)
+{
+	int err;
+	u16 pci_cmd;
+
+	if (!(adapter->flags & FLAG_MSI_ENABLED))
+		return 0;
+
+	/* disable SERR in case the MSI write causes a master abort */
+	pci_read_config_word(adapter->pdev, PCI_COMMAND, &pci_cmd);
+	pci_write_config_word(adapter->pdev, PCI_COMMAND,
+			      pci_cmd & ~PCI_COMMAND_SERR);
+
+	err = e1000_test_msi_interrupt(adapter);
+
+	/* restore previous setting of command word */
+	pci_write_config_word(adapter->pdev, PCI_COMMAND, pci_cmd);
+
+	/* success ! */
+	if (!err)
+		return 0;
+
+	/* EIO means MSI test failed */
+	if (err != -EIO)
+		return err;
+
+	/* back to INTx mode */
+	e_warn("MSI interrupt test failed, using legacy interrupt.\n");
+
+	e1000_free_irq(adapter);
+
+	err = e1000_request_irq(adapter);
+
+	return err;
+}
+
 /**
  * e1000_open - Called when a network interface is made active
  * @netdev: network interface device structure
@@ -2649,6 +2791,19 @@ static int e1000_open(struct net_device *netdev)
 	if (err)
 		goto err_req_irq;
 
+	/*
+	 * Work around PCIe errata with MSI interrupts causing some chipsets to
+	 * ignore e1000e MSI messages, which means we need to test our MSI
+	 * interrupt now
+	 */
+	{
+		err = e1000_test_msi(adapter);
+		if (err) {
+			e_err("Interrupt allocation failed\n");
+			goto err_req_irq;
+		}
+	}
+
 	/* From here on the code is the same as e1000e_up() */
 	clear_bit(__E1000_DOWN, &adapter->state);
 
@@ -3055,7 +3210,7 @@ static void e1000_watchdog_task(struct work_struct *work)
 			case SPEED_10:
 				txb2b = 0;
 				netdev->tx_queue_len = 10;
-				adapter->tx_timeout_factor = 14;
+				adapter->tx_timeout_factor = 16;
 				break;
 			case SPEED_100:
 				txb2b = 0;
@@ -3721,7 +3876,7 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
 
-	if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) ||
+	if ((new_mtu < ETH_ZLEN + ETH_FCS_LEN + VLAN_HLEN) ||
 	    (max_frame > MAX_JUMBO_FRAME_SIZE)) {
 		e_err("Invalid MTU setting\n");
 		return -EINVAL;