Merge branch 'v2.6.36-rc8' into for-2.6.37/barrier

Conflicts:
	block/blk-core.c
	drivers/block/loop.c
	mm/swapfile.c

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

92 files changed, 2630 insertions, 497 deletions

diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index c754d88e5ec..179871d9e71 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -633,7 +633,11 @@ struct vortex_private {
 		open:1,
 		medialock:1,
 		must_free_region:1,				/* Flag: if zero, Cardbus owns the I/O region */
-		large_frames:1;			/* accept large frames */
+		large_frames:1,			/* accept large frames */
+		handling_irq:1;			/* private in_irq indicator */
+	/* {get|set}_wol operations are already serialized by rtnl.
+	 * no additional locking is required for the enable_wol and acpi_set_WOL()
+	 */
 	int drv_flags;
 	u16 status_enable;
 	u16 intr_enable;
@@ -646,7 +650,7 @@ struct vortex_private {
 	u16 io_size;						/* Size of PCI region (for release_region) */
 
 	/* Serialises access to hardware other than MII and variables below.
-	 * The lock hierarchy is rtnl_lock > lock > mii_lock > window_lock. */
+	 * The lock hierarchy is rtnl_lock > {lock, mii_lock} > window_lock. */
 	spinlock_t lock;
 
 	spinlock_t mii_lock;		/* Serialises access to MII */
@@ -1993,10 +1997,9 @@ vortex_error(struct net_device *dev, int status)
 		}
 	}
 
-	if (status & RxEarly) {				/* Rx early is unused. */
-		vortex_rx(dev);
+	if (status & RxEarly)				/* Rx early is unused. */
 		iowrite16(AckIntr | RxEarly, ioaddr + EL3_CMD);
-	}
+
 	if (status & StatsFull) {			/* Empty statistics. */
 		static int DoneDidThat;
 		if (vortex_debug > 4)
@@ -2133,6 +2136,15 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev)
 			   dev->name, vp->cur_tx);
 	}
 
+	/*
+	 * We can't allow a recursion from our interrupt handler back into the
+	 * tx routine, as they take the same spin lock, and that causes
+	 * deadlock.  Just return NETDEV_TX_BUSY and let the stack try again in
+	 * a bit
+	 */
+	if (vp->handling_irq)
+		return NETDEV_TX_BUSY;
+
 	if (vp->cur_tx - vp->dirty_tx >= TX_RING_SIZE) {
 		if (vortex_debug > 0)
 			pr_warning("%s: BUG! Tx Ring full, refusing to send buffer.\n",
@@ -2288,7 +2300,12 @@ vortex_interrupt(int irq, void *dev_id)
 		if (status & (HostError | RxEarly | StatsFull | TxComplete | IntReq)) {
 			if (status == 0xffff)
 				break;
+			if (status & RxEarly)
+				vortex_rx(dev);
+			spin_unlock(&vp->window_lock);
 			vortex_error(dev, status);
+			spin_lock(&vp->window_lock);
+			window_set(vp, 7);
 		}
 
 		if (--work_done < 0) {
@@ -2335,11 +2352,13 @@ boomerang_interrupt(int irq, void *dev_id)
 
 	ioaddr = vp->ioaddr;
 
+
 	/*
 	 * It seems dopey to put the spinlock this early, but we could race against vortex_tx_timeout
 	 * and boomerang_start_xmit
 	 */
 	spin_lock(&vp->lock);
+	vp->handling_irq = 1;
 
 	status = ioread16(ioaddr + EL3_STATUS);
 
@@ -2447,6 +2466,7 @@ boomerang_interrupt(int irq, void *dev_id)
 		pr_debug("%s: exiting interrupt, status %4.4x.\n",
 			   dev->name, status);
 handler_exit:
+	vp->handling_irq = 0;
 	spin_unlock(&vp->lock);
 	return IRQ_HANDLED;
 }
@@ -2922,28 +2942,31 @@ static void vortex_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
 	struct vortex_private *vp = netdev_priv(dev);
 
-	spin_lock_irq(&vp->lock);
+	if (!VORTEX_PCI(vp))
+		return;
+
 	wol->supported = WAKE_MAGIC;
 
 	wol->wolopts = 0;
 	if (vp->enable_wol)
 		wol->wolopts |= WAKE_MAGIC;
-	spin_unlock_irq(&vp->lock);
 }
 
 static int vortex_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
 	struct vortex_private *vp = netdev_priv(dev);
+
+	if (!VORTEX_PCI(vp))
+		return -EOPNOTSUPP;
+
 	if (wol->wolopts & ~WAKE_MAGIC)
 		return -EINVAL;
 
-	spin_lock_irq(&vp->lock);
 	if (wol->wolopts & WAKE_MAGIC)
 		vp->enable_wol = 1;
 	else
 		vp->enable_wol = 0;
 	acpi_set_WOL(dev);
-	spin_unlock_irq(&vp->lock);
 
 	return 0;
 }
@@ -2971,7 +2994,6 @@ static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
 	int err;
 	struct vortex_private *vp = netdev_priv(dev);
-	unsigned long flags;
 	pci_power_t state = 0;
 
 	if(VORTEX_PCI(vp))
@@ -2981,9 +3003,7 @@ static int vortex_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 
 	if(state != 0)
 		pci_set_power_state(VORTEX_PCI(vp), PCI_D0);
-	spin_lock_irqsave(&vp->lock, flags);
 	err = generic_mii_ioctl(&vp->mii, if_mii(rq), cmd, NULL);
-	spin_unlock_irqrestore(&vp->lock, flags);
 	if(state != 0)
 		pci_set_power_state(VORTEX_PCI(vp), state);
 
@@ -3188,6 +3208,9 @@ static void acpi_set_WOL(struct net_device *dev)
 			return;
 		}
 
+		if (VORTEX_PCI(vp)->current_state < PCI_D3hot)
+			return;
+
 		/* Change the power state to D3; RxEnable doesn't take effect. */
 		pci_set_power_state(VORTEX_PCI(vp), PCI_D3hot);
 	}
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 5a6895320b4..5db667c0b37 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -928,6 +928,16 @@ config SMC91X
 	  The module will be called smc91x.  If you want to compile it as a
 	  module, say M here and read <file:Documentation/kbuild/modules.txt>.
 
+config PXA168_ETH
+	tristate "Marvell pxa168 ethernet support"
+	depends on CPU_PXA168
+	select PHYLIB
+	help
+	  This driver supports the pxa168 Ethernet ports.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called pxa168_eth.
+
 config NET_NETX
 	tristate "NetX Ethernet support"
 	select MII
@@ -2418,7 +2428,7 @@ config UGETH_TX_ON_DEMAND
 
 config MV643XX_ETH
 	tristate "Marvell Discovery (643XX) and Orion ethernet support"
-	depends on MV64X60 || PPC32 || PLAT_ORION
+	depends on (MV64X60 || PPC32 || PLAT_ORION) && INET
 	select INET_LRO
 	select PHYLIB
 	help
@@ -2793,7 +2803,7 @@ config NIU
 
 config PASEMI_MAC
 	tristate "PA Semi 1/10Gbit MAC"
-	depends on PPC_PASEMI && PCI
+	depends on PPC_PASEMI && PCI && INET
 	select PHYLIB
 	select INET_LRO
 	help
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 56e8c27f77c..3e8f150c4b1 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -244,6 +244,7 @@ obj-$(CONFIG_MYRI10GE) += myri10ge/
 obj-$(CONFIG_SMC91X) += smc91x.o
 obj-$(CONFIG_SMC911X) += smc911x.o
 obj-$(CONFIG_SMSC911X) += smsc911x.o
+obj-$(CONFIG_PXA168_ETH) += pxa168_eth.o
 obj-$(CONFIG_BFIN_MAC) += bfin_mac.o
 obj-$(CONFIG_DM9000) += dm9000.o
 obj-$(CONFIG_PASEMI_MAC) += pasemi_mac_driver.o
diff --git a/drivers/net/atlx/atl1.c b/drivers/net/atlx/atl1.c
index 63b9ba0cc67..c73be284831 100644
--- a/drivers/net/atlx/atl1.c
+++ b/drivers/net/atlx/atl1.c
@@ -1251,6 +1251,12 @@ static void atl1_free_ring_resources(struct atl1_adapter *adapter)
 
 	rrd_ring->desc = NULL;
 	rrd_ring->dma = 0;
+
+	adapter->cmb.dma = 0;
+	adapter->cmb.cmb = NULL;
+
+	adapter->smb.dma = 0;
+	adapter->smb.smb = NULL;
 }
 
 static void atl1_setup_mac_ctrl(struct atl1_adapter *adapter)
@@ -2847,10 +2853,11 @@ static int atl1_resume(struct pci_dev *pdev)
 	pci_enable_wake(pdev, PCI_D3cold, 0);
 
 	atl1_reset_hw(&adapter->hw);
-	adapter->cmb.cmb->int_stats = 0;
 
-	if (netif_running(netdev))
+	if (netif_running(netdev)) {
+		adapter->cmb.cmb->int_stats = 0;
 		atl1_up(adapter);
+	}
 	netif_device_attach(netdev);
 
 	return 0;
diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index 37617abc164..efeffdf9e5f 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -848,6 +848,15 @@ static int b44_poll(struct napi_struct *napi, int budget)
 		b44_tx(bp);
 		/* spin_unlock(&bp->tx_lock); */
 	}
+	if (bp->istat & ISTAT_RFO) {	/* fast recovery, in ~20msec */
+		bp->istat &= ~ISTAT_RFO;
+		b44_disable_ints(bp);
+		ssb_device_enable(bp->sdev, 0); /* resets ISTAT_RFO */
+		b44_init_rings(bp);
+		b44_init_hw(bp, B44_FULL_RESET_SKIP_PHY);
+		netif_wake_queue(bp->dev);
+	}
+
 	spin_unlock_irqrestore(&bp->lock, flags);
 
 	work_done = 0;
@@ -2161,8 +2170,6 @@ static int __devinit b44_init_one(struct ssb_device *sdev,
 	dev->irq = sdev->irq;
 	SET_ETHTOOL_OPS(dev, &b44_ethtool_ops);
 
-	netif_carrier_off(dev);
-
 	err = ssb_bus_powerup(sdev->bus, 0);
 	if (err) {
 		dev_err(sdev->dev,
@@ -2204,6 +2211,8 @@ static int __devinit b44_init_one(struct ssb_device *sdev,
 		goto err_out_powerdown;
 	}
 
+	netif_carrier_off(dev);
+
 	ssb_set_drvdata(sdev, dev);
 
 	/* Chip reset provides power to the b44 MAC & PCI cores, which
diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h
index 99197bd54da..53306bf3f40 100644
--- a/drivers/net/benet/be.h
+++ b/drivers/net/benet/be.h
@@ -181,6 +181,7 @@ struct be_drvr_stats {
 	u64 be_rx_bytes_prev;
 	u64 be_rx_pkts;
 	u32 be_rx_rate;
+	u32 be_rx_mcast_pkt;
 	/* number of non ether type II frames dropped where
 	 * frame len > length field of Mac Hdr */
 	u32 be_802_3_dropped_frames;
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 3d305494a60..34abcc9403d 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -140,10 +140,8 @@ int be_process_mcc(struct be_adapter *adapter, int *status)
 	while ((compl = be_mcc_compl_get(adapter))) {
 		if (compl->flags & CQE_FLAGS_ASYNC_MASK) {
 			/* Interpret flags as an async trailer */
-			BUG_ON(!is_link_state_evt(compl->flags));
-
-			/* Interpret compl as a async link evt */
-			be_async_link_state_process(adapter,
+			if (is_link_state_evt(compl->flags))
+				be_async_link_state_process(adapter,
 				(struct be_async_event_link_state *) compl);
 		} else if (compl->flags & CQE_FLAGS_COMPLETED_MASK) {
 				*status = be_mcc_compl_process(adapter, compl);
@@ -207,7 +205,7 @@ static int be_mbox_db_ready_wait(struct be_adapter *adapter, void __iomem *db)
 
 		if (msecs > 4000) {
 			dev_err(&adapter->pdev->dev, "mbox poll timed out\n");
-			be_dump_ue(adapter);
+			be_detect_dump_ue(adapter);
 			return -1;
 		}
 
diff --git a/drivers/net/benet/be_cmds.h b/drivers/net/benet/be_cmds.h
index bdc10a28cfd..ad1e6fac60c 100644
--- a/drivers/net/benet/be_cmds.h
+++ b/drivers/net/benet/be_cmds.h
@@ -992,5 +992,5 @@ extern int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num,
 extern int be_cmd_get_phy_info(struct be_adapter *adapter,
 		struct be_dma_mem *cmd);
 extern int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain);
-extern void be_dump_ue(struct be_adapter *adapter);
+extern void be_detect_dump_ue(struct be_adapter *adapter);
 
diff --git a/drivers/net/benet/be_ethtool.c b/drivers/net/benet/be_ethtool.c
index cd16243c7c3..13f0abbc520 100644
--- a/drivers/net/benet/be_ethtool.c
+++ b/drivers/net/benet/be_ethtool.c
@@ -60,6 +60,7 @@ static const struct be_ethtool_stat