Merge branch 'master' into upstream-fixes

1 files changed, 87 insertions, 29 deletions

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index ce6f3be..1b8138f 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -68,8 +68,8 @@
 
 #define DRV_MODULE_NAME		"tg3"
 #define PFX DRV_MODULE_NAME	": "
-#define DRV_MODULE_VERSION	"3.62"
-#define DRV_MODULE_RELDATE	"June 30, 2006"
+#define DRV_MODULE_VERSION	"3.63"
+#define DRV_MODULE_RELDATE	"July 25, 2006"
 
 #define TG3_DEF_MAC_MODE	0
 #define TG3_DEF_RX_MODE		0
@@ -3590,6 +3590,28 @@ static irqreturn_t tg3_test_isr(int irq, void *dev_id,
 static int tg3_init_hw(struct tg3 *, int);
 static int tg3_halt(struct tg3 *, int, int);
 
+/* Restart hardware after configuration changes, self-test, etc.
+ * Invoked with tp->lock held.
+ */
+static int tg3_restart_hw(struct tg3 *tp, int reset_phy)
+{
+	int err;
+
+	err = tg3_init_hw(tp, reset_phy);
+	if (err) {
+		printk(KERN_ERR PFX "%s: Failed to re-initialize device, "
+		       "aborting.\n", tp->dev->name);
+		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
+		tg3_full_unlock(tp);
+		del_timer_sync(&tp->timer);
+		tp->irq_sync = 0;
+		netif_poll_enable(tp->dev);
+		dev_close(tp->dev);
+		tg3_full_lock(tp, 0);
+	}
+	return err;
+}
+
 #ifdef CONFIG_NET_POLL_CONTROLLER
 static void tg3_poll_controller(struct net_device *dev)
 {
@@ -3630,13 +3652,15 @@ static void tg3_reset_task(void *_data)
 	}
 
 	tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
-	tg3_init_hw(tp, 1);
+	if (tg3_init_hw(tp, 1))
+		goto out;
 
 	tg3_netif_start(tp);
 
 	if (restart_timer)
 		mod_timer(&tp->timer, jiffies + 1);
 
+out:
 	tp->tg3_flags &= ~TG3_FLAG_IN_RESET_TASK;
 
 	tg3_full_unlock(tp);
@@ -4124,6 +4148,7 @@ static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
 static int tg3_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct tg3 *tp = netdev_priv(dev);
+	int err;
 
 	if (new_mtu < TG3_MIN_MTU || new_mtu > TG3_MAX_MTU(tp))
 		return -EINVAL;
@@ -4144,13 +4169,14 @@ static int tg3_change_mtu(struct net_device *dev, int new_mtu)
 
 	tg3_set_mtu(dev, tp, new_mtu);
 
-	tg3_init_hw(tp, 0);
+	err = tg3_restart_hw(tp, 0);
 
-	tg3_netif_start(tp);
+	if (!err)
+		tg3_netif_start(tp);
 
 	tg3_full_unlock(tp);
 
-	return 0;
+	return err;
 }
 
 /* Free up pending packets in all rx/tx rings.
@@ -4232,7 +4258,7 @@ static void tg3_free_rings(struct tg3 *tp)
  * end up in the driver.  tp->{tx,}lock are held and thus
  * we may not sleep.
  */
-static void tg3_init_rings(struct tg3 *tp)
+static int tg3_init_rings(struct tg3 *tp)
 {
 	u32 i;
 
@@ -4281,18 +4307,38 @@ static void tg3_init_rings(struct tg3 *tp)
 
 	/* Now allocate fresh SKBs for each rx ring. */
 	for (i = 0; i < tp->rx_pending; i++) {
-		if (tg3_alloc_rx_skb(tp, RXD_OPAQUE_RING_STD,
-				     -1, i) < 0)
+		if (tg3_alloc_rx_skb(tp, RXD_OPAQUE_RING_STD, -1, i) < 0) {
+			printk(KERN_WARNING PFX
+			       "%s: Using a smaller RX standard ring, "
+			       "only %d out of %d buffers were allocated "
+			       "successfully.\n",
+			       tp->dev->name, i, tp->rx_pending);
+			if (i == 0)
+				return -ENOMEM;
+			tp->rx_pending = i;
 			break;
+		}
 	}
 
 	if (tp->tg3_flags & TG3_FLAG_JUMBO_RING_ENABLE) {
 		for (i = 0; i < tp->rx_jumbo_pending; i++) {
 			if (tg3_alloc_rx_skb(tp, RXD_OPAQUE_RING_JUMBO,
-					     -1, i) < 0)
+					     -1, i) < 0) {
+				printk(KERN_WARNING PFX
+				       "%s: Using a smaller RX jumbo ring, "
+				       "only %d out of %d buffers were "
+				       "allocated successfully.\n",
+				       tp->dev->name, i, tp->rx_jumbo_pending);
+				if (i == 0) {
+					tg3_free_rings(tp);
+					return -ENOMEM;
+				}
+				tp->rx_jumbo_pending = i;
 				break;
+			}
 		}
 	}
+	return 0;
 }
 
 /*
@@ -5815,6 +5861,7 @@ static int tg3_set_mac_addr(struct net_device *dev, void *p)
 {
 	struct tg3 *tp = netdev_priv(dev);
 	struct sockaddr *addr = p;
+	int err = 0;
 
 	if (!is_valid_ether_addr(addr->sa_data))
 		return -EINVAL;
@@ -5832,9 +5879,9 @@ static int tg3_set_mac_addr(struct net_device *dev, void *p)
 		tg3_full_lock(tp, 1);
 
 		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
-		tg3_init_hw(tp, 0);
-
-		tg3_netif_start(tp);
+		err = tg3_restart_hw(tp, 0);
+		if (!err)
+			tg3_netif_start(tp);
 		tg3_full_unlock(tp);
 	} else {
 		spin_lock_bh(&tp->lock);
@@ -5842,7 +5889,7 @@ static int tg3_set_mac_addr(struct net_device *dev, void *p)
 		spin_unlock_bh(&tp->lock);
 	}
 
-	return 0;
+	return err;
 }
 
 /* tp->lock is held. */
@@ -5942,7 +5989,9 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
 	 * can only do this after the hardware has been
 	 * successfully reset.
 	 */
-	tg3_init_rings(tp);
+	err = tg3_init_rings(tp);
+	if (err)
+		return err;
 
 	/* This value is determined during the probe time DMA
 	 * engine test, tg3_test_dma.
@@ -7956,7 +8005,7 @@ static void tg3_get_ringparam(struct net_device *dev, struct ethtool_ringparam *
 static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
 {
 	struct tg3 *tp = netdev_priv(dev);
-	int irq_sync = 0;
+	int irq_sync = 0, err = 0;
   
 	if ((ering->rx_pending > TG3_RX_RING_SIZE - 1) ||
 	    (ering->rx_jumbo_pending > TG3_RX_JUMBO_RING_SIZE - 1) ||
@@ -7980,13 +8029,14 @@ static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *e
 
 	if (netif_running(dev)) {
 		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
-		tg3_init_hw(tp, 1);
-		tg3_netif_start(tp);
+		err = tg3_restart_hw(tp, 1);
+		if (!err)
+			tg3_netif_start(tp);
 	}
 
 	tg3_full_unlock(tp);
   
-	return 0;
+	return err;
 }
   
 static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
@@ -8001,7 +8051,7 @@ static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam
 static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
 {
 	struct tg3 *tp = netdev_priv(dev);
-	int irq_sync = 0;
+	int irq_sync = 0, err = 0;
   
 	if (netif_running(dev)) {
 		tg3_netif_stop(tp);
@@ -8025,13 +8075,14 @@ static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam
 
 	if (netif_running(dev)) {
 		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
-		tg3_init_hw(tp, 1);
-		tg3_netif_start(tp);
+		err = tg3_restart_hw(tp, 1);
+		if (!err)
+			tg3_netif_start(tp);
 	}
 
 	tg3_full_unlock(tp);
   
-	return 0;
+	return err;
 }
   
 static u32 tg3_get_rx_csum(struct net_device *dev)
@@ -8666,7 +8717,9 @@ static int tg3_test_loopback(struct tg3 *tp)
 	if (!netif_running(tp->dev))
 		return TG3_LOOPBACK_FAILED;
 
-	tg3_reset_hw(tp, 1);
+	err = tg3_reset_hw(tp, 1);
+	if (err)
+		return TG3_LOOPBACK_FAILED;
 
 	if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
 		err |= TG3_MAC_LOOPBACK_FAILED;
@@ -8740,8 +8793,8 @@ static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
 		tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
 		if (netif_running(dev)) {
 			tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
-			tg3_init_hw(tp, 1);
-			tg3_netif_start(tp);
+			if (!tg3_restart_hw(tp, 1))
+				tg3_netif_start(tp);
 		}
 
 		tg3_full_unlock(tp);
@@ -11699,7 +11752,8 @@ static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
 		tg3_full_lock(tp, 0);
 
 		tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
-		tg3_init_hw(tp, 1);
+		if (tg3_restart_hw(tp, 1))
+			goto out;
 
 		tp->timer.expires = jiffies + tp->timer_offset;
 		add_timer(&tp->timer);
@@ -11707,6 +11761,7 @@ static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
 		netif_device_attach(dev);
 		tg3_netif_start(tp);
 
+out:
 		tg3_full_unlock(tp);
 	}
 
@@ -11733,16 +11788,19 @@ static int tg3_resume(struct pci_dev *pdev)
 	tg3_full_lock(tp, 0);
 
 	tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
-	tg3_init_hw(tp, 1);
+	err = tg3_restart_hw(tp, 1);
+	if (err)
+		goto out;
 
 	tp->timer.expires = jiffies + tp->timer_offset;
 	add_timer(&tp->timer);
 
 	tg3_netif_start(tp);
 
+out:
 	tg3_full_unlock(tp);
 
-	return 0;
+	return err;
 }
 
 static struct pci_driver tg3_driver = {