Merge remote branch 'origin' into secretlab/next-devicetree

Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.

Conflicts:
	drivers/i2c/busses/i2c-cpm.c
	drivers/i2c/busses/i2c-mpc.c
	drivers/net/gianfar.c

Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 33 insertions, 218 deletions

diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 5c98f7c22425..268ea4d566d7 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -1104,20 +1104,16 @@ static void nv_disable_hw_interrupts(struct net_device *dev, u32 mask)
 
 static void nv_napi_enable(struct net_device *dev)
 {
-#ifdef CONFIG_FORCEDETH_NAPI
 	struct fe_priv *np = get_nvpriv(dev);
 
 	napi_enable(&np->napi);
-#endif
 }
 
 static void nv_napi_disable(struct net_device *dev)
 {
-#ifdef CONFIG_FORCEDETH_NAPI
 	struct fe_priv *np = get_nvpriv(dev);
 
 	napi_disable(&np->napi);
-#endif
 }
 
 #define MII_READ	(-1)
@@ -1810,7 +1806,6 @@ static int nv_alloc_rx_optimized(struct net_device *dev)
 }
 
 /* If rx bufs are exhausted called after 50ms to attempt to refresh */
-#ifdef CONFIG_FORCEDETH_NAPI
 static void nv_do_rx_refill(unsigned long data)
 {
 	struct net_device *dev = (struct net_device *) data;
@@ -1819,41 +1814,6 @@ static void nv_do_rx_refill(unsigned long data)
 	/* Just reschedule NAPI rx processing */
 	napi_schedule(&np->napi);
 }
-#else
-static void nv_do_rx_refill(unsigned long data)
-{
-	struct net_device *dev = (struct net_device *) data;
-	struct fe_priv *np = netdev_priv(dev);
-	int retcode;
-
-	if (!using_multi_irqs(dev)) {
-		if (np->msi_flags & NV_MSI_X_ENABLED)
-			disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
-		else
-			disable_irq(np->pci_dev->irq);
-	} else {
-		disable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
-	}
-	if (!nv_optimized(np))
-		retcode = nv_alloc_rx(dev);
-	else
-		retcode = nv_alloc_rx_optimized(dev);
-	if (retcode) {
-		spin_lock_irq(&np->lock);
-		if (!np->in_shutdown)
-			mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
-		spin_unlock_irq(&np->lock);
-	}
-	if (!using_multi_irqs(dev)) {
-		if (np->msi_flags & NV_MSI_X_ENABLED)
-			enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_ALL].vector);
-		else
-			enable_irq(np->pci_dev->irq);
-	} else {
-		enable_irq(np->msi_x_entry[NV_MSI_X_VECTOR_RX].vector);
-	}
-}
-#endif
 
 static void nv_init_rx(struct net_device *dev)
 {
@@ -2148,7 +2108,7 @@ static netdev_tx_t nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	unsigned int i;
 	u32 offset = 0;
 	u32 bcnt;
-	u32 size = skb->len-skb->data_len;
+	u32 size = skb_headlen(skb);
 	u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
 	u32 empty_slots;
 	struct ring_desc* put_tx;
@@ -2254,7 +2214,6 @@ static netdev_tx_t nv_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		dprintk("\n");
 	}
 
-	dev->trans_start = jiffies;
 	writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
 	return NETDEV_TX_OK;
 }
@@ -2269,7 +2228,7 @@ static netdev_tx_t nv_start_xmit_optimized(struct sk_buff *skb,
 	unsigned int i;
 	u32 offset = 0;
 	u32 bcnt;
-	u32 size = skb->len-skb->data_len;
+	u32 size = skb_headlen(skb);
 	u32 entries = (size >> NV_TX2_TSO_MAX_SHIFT) + ((size & (NV_TX2_TSO_MAX_SIZE-1)) ? 1 : 0);
 	u32 empty_slots;
 	struct ring_desc_ex* put_tx;
@@ -2409,7 +2368,6 @@ static netdev_tx_t nv_start_xmit_optimized(struct sk_buff *skb,
 		dprintk("\n");
 	}
 
-	dev->trans_start = jiffies;
 	writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl);
 	return NETDEV_TX_OK;
 }
@@ -2816,11 +2774,7 @@ static int nv_rx_process(struct net_device *dev, int limit)
 		skb->protocol = eth_type_trans(skb, dev);
 		dprintk(KERN_DEBUG "%s: nv_rx_process: %d bytes, proto %d accepted.\n",
 					dev->name, len, skb->protocol);
-#ifdef CONFIG_FORCEDETH_NAPI
-		netif_receive_skb(skb);
-#else
-		netif_rx(skb);
-#endif
+		napi_gro_receive(&np->napi, skb);
 		dev->stats.rx_packets++;
 		dev->stats.rx_bytes += len;
 next_pkt:
@@ -2909,27 +2863,14 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit)
 				dev->name, len, skb->protocol);
 
 			if (likely(!np->vlangrp)) {
-#ifdef CONFIG_FORCEDETH_NAPI
-				netif_receive_skb(skb);
-#else
-				netif_rx(skb);
-#endif
+				napi_gro_receive(&np->napi, skb);
 			} else {
 				vlanflags = le32_to_cpu(np->get_rx.ex->buflow);
 				if (vlanflags & NV_RX3_VLAN_TAG_PRESENT) {
-#ifdef CONFIG_FORCEDETH_NAPI
-					vlan_hwaccel_receive_skb(skb, np->vlangrp,
-								 vlanflags & NV_RX3_VLAN_TAG_MASK);
-#else
-					vlan_hwaccel_rx(skb, np->vlangrp,
-							vlanflags & NV_RX3_VLAN_TAG_MASK);
-#endif
+					vlan_gro_receive(&np->napi, np->vlangrp,
+							 vlanflags & NV_RX3_VLAN_TAG_MASK, skb);
 				} else {
-#ifdef CONFIG_FORCEDETH_NAPI
-					netif_receive_skb(skb);
-#else
-					netif_rx(skb);
-#endif
+					napi_gro_receive(&np->napi, skb);
 				}
 			}
 
@@ -3104,12 +3045,14 @@ static void nv_set_multicast(struct net_device *dev)
 			if (dev->flags & IFF_ALLMULTI) {
 				alwaysOn[0] = alwaysOn[1] = alwaysOff[0] = alwaysOff[1] = 0;
 			} else {
-				struct dev_mc_list *walk;
+				struct netdev_hw_addr *ha;
 
-				netdev_for_each_mc_addr(walk, dev) {
+				netdev_for_each_mc_addr(ha, dev) {
+					unsigned char *addr = ha->addr;
 					u32 a, b;
-					a = le32_to_cpu(*(__le32 *) walk->dmi_addr);
-					b = le16_to_cpu(*(__le16 *) (&walk->dmi_addr[4]));
+
+					a = le32_to_cpu(*(__le32 *) addr);
+					b = le16_to_cpu(*(__le16 *) (&addr[4]));
 					alwaysOn[0] &= a;
 					alwaysOff[0] &= ~a;
 					alwaysOn[1] &= b;
@@ -3494,10 +3437,6 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
 	struct net_device *dev = (struct net_device *) data;
 	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
-#ifndef CONFIG_FORCEDETH_NAPI
-	int total_work = 0;
-	int loop_count = 0;
-#endif
 
 	dprintk(KERN_DEBUG "%s: nv_nic_irq\n", dev->name);
 
@@ -3514,7 +3453,6 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
 
 	nv_msi_workaround(np);
 
-#ifdef CONFIG_FORCEDETH_NAPI
 	if (napi_schedule_prep(&np->napi)) {
 		/*
 		 * Disable further irq's (msix not enabled with napi)
@@ -3523,65 +3461,6 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
 		__napi_schedule(&np->napi);
 	}
 
-#else
-	do
-	{
-		int work = 0;
-		if ((work = nv_rx_process(dev, RX_WORK_PER_LOOP))) {
-			if (unlikely(nv_alloc_rx(dev))) {
-				spin_lock(&np->lock);
-				if (!np->in_shutdown)
-					mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
-				spin_unlock(&np->lock);
-			}
-		}
-
-		spin_lock(&np->lock);
-		work += nv_tx_done(dev, TX_WORK_PER_LOOP);
-		spin_unlock(&np->lock);
-
-		if (!work)
-			break;
-
-		total_work += work;
-
-		loop_count++;
-	}
-	while (loop_count < max_interrupt_work);
-
-	if (nv_change_interrupt_mode(dev, total_work)) {
-		/* setup new irq mask */
-		writel(np->irqmask, base + NvRegIrqMask);
-	}
-
-	if (unlikely(np->events & NVREG_IRQ_LINK)) {
-		spin_lock(&np->lock);
-		nv_link_irq(dev);
-		spin_unlock(&np->lock);
-	}
-	if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
-		spin_lock(&np->lock);
-		nv_linkchange(dev);
-		spin_unlock(&np->lock);
-		np->link_timeout = jiffies + LINK_TIMEOUT;
-	}
-	if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) {
-		spin_lock(&np->lock);
-		/* disable interrupts on the nic */
-		if (!(np->msi_flags & NV_MSI_X_ENABLED))
-			writel(0, base + NvRegIrqMask);
-		else
-			writel(np->irqmask, base + NvRegIrqMask);
-		pci_push(base);
-
-		if (!np->in_shutdown) {
-			np->nic_poll_irq = np->irqmask;
-			np->recover_error = 1;
-			mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
-		}
-		spin_unlock(&np->lock);
-	}
-#endif
 	dprintk(KERN_DEBUG "%s: nv_nic_irq completed\n", dev->name);
 
 	return IRQ_HANDLED;
@@ -3597,10 +3476,6 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
 	struct net_device *dev = (struct net_device *) data;
 	struct fe_priv *np = netdev_priv(dev);
 	u8 __iomem *base = get_hwbase(dev);
-#ifndef CONFIG_FORCEDETH_NAPI
-	int total_work = 0;
-	int loop_count = 0;
-#endif
 
 	dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized\n", dev->name);
 
@@ -3617,7 +3492,6 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
 
 	nv_msi_workaround(np);
 
-#ifdef CONFIG_FORCEDETH_NAPI
 	if (napi_schedule_prep(&np->napi)) {
 		/*
 		 * Disable further irq's (msix not enabled with napi)
@@ -3625,66 +3499,6 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
 		writel(0, base + NvRegIrqMask);
 		__napi_schedule(&np->napi);
 	}
-#else
-	do
-	{
-		int work = 0;
-		if ((work = nv_rx_process_optimized(dev, RX_WORK_PER_LOOP))) {
-			if (unlikely(nv_alloc_rx_optimized(dev))) {
-				spin_lock(&np->lock);
-				if (!np->in_shutdown)
-					mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
-				spin_unlock(&np->lock);
-			}
-		}
-
-		spin_lock(&np->lock);
-		work += nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
-		spin_unlock(&np->lock);
-
-		if (!work)
-			break;
-
-		total_work += work;
-
-		loop_count++;
-	}
-	while (loop_count < max_interrupt_work);
-
-	if (nv_change_interrupt_mode(dev, total_work)) {
-		/* setup new irq mask */
-		writel(np->irqmask, base + NvRegIrqMask);
-	}
-
-	if (unlikely(np->events & NVREG_IRQ_LINK)) {
-		spin_lock(&np->lock);
-		nv_link_irq(dev);
-		spin_unlock(&np->lock);
-	}
-	if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
-		spin_lock(&np->lock);
-		nv_linkchange(dev);
-		spin_unlock(&np->lock);
-		np->link_timeout = jiffies + LINK_TIMEOUT;
-	}
-	if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) {
-		spin_lock(&np->lock);
-		/* disable interrupts on the nic */
-		if (!(np->msi_flags & NV_MSI_X_ENABLED))
-			writel(0, base + NvRegIrqMask);
-		else
-			writel(np->irqmask, base + NvRegIrqMask);
-		pci_push(base);
-
-		if (!np->in_shutdown) {
-			np->nic_poll_irq = np->irqmask;
-			np->recover_error = 1;
-			mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
-		}
-		spin_unlock(&np->lock);
-	}
-
-#endif
 	dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized completed\n", dev->name);
 
 	return IRQ_HANDLED;
@@ -3733,7 +3547,6 @@ static irqreturn_t nv_nic_irq_tx(int foo, void *data)
 	return IRQ_RETVAL(i);
 }
 
-#ifdef CONFIG_FORCEDETH_NAPI
 static int nv_napi_poll(struct napi_struct *napi, int budget)
 {
 	struct fe_priv *np = container_of(napi, struct fe_priv, napi);
@@ -3741,23 +3554,27 @@ static int nv_napi_poll(struct napi_struct *napi, int budget)
 	u8 __iomem *base = get_hwbase(dev);
 	unsigned long flags;
 	int retcode;
-	int tx_work, rx_work;
+	int rx_count, tx_work=0, rx_work=0;
 
-	if (!nv_optimized(np)) {
-		spin_lock_irqsave(&np->lock, flags);
-		tx_work = nv_tx_done(dev, np->tx_ring_size);
-		spin_unlock_irqrestore(&np->lock, flags);
+	do {
+		if (!nv_optimized(np)) {
+			spin_lock_irqsave(&np->lock, flags);
+			tx_work += nv_tx_done(dev, np->tx_ring_size);
+			spin_unlock_irqrestore(&np->lock, flags);
 
-		rx_work = nv_rx_process(dev, budget);
-		retcode = nv_alloc_rx(dev);
-	} else {
-		spin_lock_irqsave(&np->lock, flags);
-		tx_work = nv_tx_done_optimized(dev, np->tx_ring_size);
-		spin_unlock_irqrestore(&np->lock, flags);
+			rx_count = nv_rx_process(dev, budget - rx_work);
+			retcode = nv_alloc_rx(dev);
+		} else {
+			spin_lock_irqsave(&np->lock, flags);
+			tx_work += nv_tx_done_optimized(dev, np->tx_ring_size);
+			spin_unlock_irqrestore(&np->lock, flags);
 
-		rx_work = nv_rx_process_optimized(dev, budget);
-		retcode = nv_alloc_rx_optimized(dev);
-	}
+			rx_count = nv_rx_process_optimized(dev,
+			    budget - rx_work);
+			retcode = nv_alloc_rx_optimized(dev);
+		}
+	} while (retcode == 0 &&
+		 rx_count > 0 && (rx_work += rx_count) < budget);
 
 	if (retcode) {
 		spin_lock_irqsave(&np->lock, flags);
@@ -3800,7 +3617,6 @@ static int nv_napi_poll(struct napi_struct *napi, int budget)
 	}
 	return rx_work;
 }
-#endif
 
 static irqreturn_t nv_nic_irq_rx(int foo, void *data)
 {
@@ -5706,6 +5522,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 		np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK;
 		dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
 		dev->features |= NETIF_F_TSO;
+		dev->features |= NETIF_F_GRO;
 	}
 
 	np->vlanctl_bits = 0;
@@ -5758,9 +5575,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 	else
 		dev->netdev_ops = &nv_netdev_ops_optimized;
 
-#ifdef CONFIG_FORCEDETH_NAPI
 	netif_napi_add(dev, &np->napi, nv_napi_poll, RX_WORK_PER_LOOP);
-#endif
 	SET_ETHTOOL_OPS(dev, &ops);
 	dev->watchdog_timeo = NV_WATCHDOG_TIMEO;
 
@@ -5863,7 +5678,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
 		/* msix has had reported issues when modifying irqmask
 		   as in the case of napi, therefore, disable for now
 		*/
-#ifndef CONFIG_FORCEDETH_NAPI
+#if 0
 		np->msi_flags |= NV_MSI_X_CAPABLE;
 #endif
 	}