Merge branch 'master' into devel and apply fixup from Stephen Rothwell:

vfs/nfs: fixup for nfs_open_context change

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 137 insertions, 66 deletions

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 76e8af00d86..f97afda941d 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -30,6 +30,8 @@
 #include <net/ip6_checksum.h>
 #include <linux/io.h>
 #include <linux/prefetch.h>
+#include <linux/bitops.h>
+#include <linux/if_vlan.h>
 
 /* Intel Media SOC GbE MDIO physical base address */
 static unsigned long ce4100_gbe_mdio_base_phy;
@@ -166,7 +168,8 @@ static void e1000_smartspeed(struct e1000_adapter *adapter);
 static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
                                        struct sk_buff *skb);
 
-static void e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp);
+static bool e1000_vlan_used(struct e1000_adapter *adapter);
+static void e1000_vlan_mode(struct net_device *netdev, u32 features);
 static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid);
 static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid);
 static void e1000_restore_vlan(struct e1000_adapter *adapter);
@@ -330,21 +333,24 @@ static void e1000_update_mng_vlan(struct e1000_adapter *adapter)
 	struct net_device *netdev = adapter->netdev;
 	u16 vid = hw->mng_cookie.vlan_id;
 	u16 old_vid = adapter->mng_vlan_id;
-	if (adapter->vlgrp) {
-		if (!vlan_group_get_device(adapter->vlgrp, vid)) {
-			if (hw->mng_cookie.status &
-				E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) {
-				e1000_vlan_rx_add_vid(netdev, vid);
-				adapter->mng_vlan_id = vid;
-			} else
-				adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
 
-			if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
-					(vid != old_vid) &&
-			    !vlan_group_get_device(adapter->vlgrp, old_vid))
-				e1000_vlan_rx_kill_vid(netdev, old_vid);
-		} else
+	if (!e1000_vlan_used(adapter))
+		return;
+
+	if (!test_bit(vid, adapter->active_vlans)) {
+		if (hw->mng_cookie.status &
+		    E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) {
+			e1000_vlan_rx_add_vid(netdev, vid);
 			adapter->mng_vlan_id = vid;
+		} else {
+			adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+		}
+		if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
+		    (vid != old_vid) &&
+		    !test_bit(old_vid, adapter->active_vlans))
+			e1000_vlan_rx_kill_vid(netdev, old_vid);
+	} else {
+		adapter->mng_vlan_id = vid;
 	}
 }
 
@@ -797,6 +803,41 @@ static int e1000_is_need_ioport(struct pci_dev *pdev)
 	}
 }
 
+static u32 e1000_fix_features(struct net_device *netdev, u32 features)
+{
+	/*
+	 * Since there is no support for separate rx/tx vlan accel
+	 * enable/disable make sure tx flag is always in same state as rx.
+	 */
+	if (features & NETIF_F_HW_VLAN_RX)
+		features |= NETIF_F_HW_VLAN_TX;
+	else
+		features &= ~NETIF_F_HW_VLAN_TX;
+
+	return features;
+}
+
+static int e1000_set_features(struct net_device *netdev, u32 features)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	u32 changed = features ^ netdev->features;
+
+	if (changed & NETIF_F_HW_VLAN_RX)
+		e1000_vlan_mode(netdev, features);
+
+	if (!(changed & NETIF_F_RXCSUM))
+		return 0;
+
+	adapter->rx_csum = !!(features & NETIF_F_RXCSUM);
+
+	if (netif_running(netdev))
+		e1000_reinit_locked(adapter);
+	else
+		e1000_reset(adapter);
+
+	return 0;
+}
+
 static const struct net_device_ops e1000_netdev_ops = {
 	.ndo_open		= e1000_open,
 	.ndo_stop		= e1000_close,
@@ -804,17 +845,17 @@ static const struct net_device_ops e1000_netdev_ops = {
 	.ndo_get_stats		= e1000_get_stats,
 	.ndo_set_rx_mode	= e1000_set_rx_mode,
 	.ndo_set_mac_address	= e1000_set_mac,
-	.ndo_tx_timeout 	= e1000_tx_timeout,
+	.ndo_tx_timeout		= e1000_tx_timeout,
 	.ndo_change_mtu		= e1000_change_mtu,
 	.ndo_do_ioctl		= e1000_ioctl,
 	.ndo_validate_addr	= eth_validate_addr,
-
-	.ndo_vlan_rx_register	= e1000_vlan_rx_register,
 	.ndo_vlan_rx_add_vid	= e1000_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid	= e1000_vlan_rx_kill_vid,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= e1000_netpoll,
 #endif
+	.ndo_fix_features	= e1000_fix_features,
+	.ndo_set_features	= e1000_set_features,
 };
 
 /**
@@ -1016,16 +1057,19 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
 	}
 
 	if (hw->mac_type >= e1000_82543) {
-		netdev->features = NETIF_F_SG |
+		netdev->hw_features = NETIF_F_SG |
 				   NETIF_F_HW_CSUM |
-				   NETIF_F_HW_VLAN_TX |
-				   NETIF_F_HW_VLAN_RX |
+				   NETIF_F_HW_VLAN_RX;
+		netdev->features = NETIF_F_HW_VLAN_TX |
 				   NETIF_F_HW_VLAN_FILTER;
 	}
 
 	if ((hw->mac_type >= e1000_82544) &&
 	   (hw->mac_type != e1000_82547))
-		netdev->features |= NETIF_F_TSO;
+		netdev->hw_features |= NETIF_F_TSO;
+
+	netdev->features |= netdev->hw_features;
+	netdev->hw_features |= NETIF_F_RXCSUM;
 
 	if (pci_using_dac) {
 		netdev->features |= NETIF_F_HIGHDMA;
@@ -1175,6 +1219,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
 	if (err)
 		goto err_register;
 
+	e1000_vlan_mode(netdev, netdev->features);
+
 	/* print bus type/speed/width info */
 	e_info(probe, "(PCI%s:%dMHz:%d-bit) %pM\n",
 	       ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""),
@@ -1419,8 +1465,7 @@ static int e1000_close(struct net_device *netdev)
 	 * the same ID is registered on the host OS (let 8021q kill it) */
 	if ((hw->mng_cookie.status &
 			  E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
-	     !(adapter->vlgrp &&
-	       vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) {
+	     !test_bit(adapter->mng_vlan_id, adapter->active_vlans)) {
 		e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
 	}
 
@@ -2211,7 +2256,7 @@ static void e1000_set_rx_mode(struct net_device *netdev)
 		else
 			rctl &= ~E1000_RCTL_MPE;
 		/* Enable VLAN filter if there is a VLAN */
-		if (adapter->vlgrp)
+		if (e1000_vlan_used(adapter))
 			rctl |= E1000_RCTL_VFE;
 	}
 
@@ -2357,13 +2402,16 @@ bool e1000_has_link(struct e1000_adapter *adapter)
 	struct e1000_hw *hw = &adapter->hw;
 	bool link_active = false;
 
-	/* get_link_status is set on LSC (link status) interrupt or
-	 * rx sequence error interrupt.  get_link_status will stay
-	 * false until the e1000_check_for_link establishes link
-	 * for copper adapters ONLY
+	/* get_link_status is set on LSC (link status) interrupt or rx
+	 * sequence error interrupt (except on intel ce4100).
+	 * get_link_status will stay false until the
+	 * e1000_check_for_link establishes link for copper adapters
+	 * ONLY
 	 */
 	switch (hw->media_type) {
 	case e1000_media_type_copper:
+		if (hw->mac_type == e1000_ce4100)
+			hw->get_link_status = 1;
 		if (hw->get_link_status) {
 			e1000_check_for_link(hw);
 			link_active = !hw->get_link_status;
@@ -3158,7 +3206,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
 		}
 	}
 
-	if (unlikely(vlan_tx_tag_present(skb))) {
+	if (vlan_tx_tag_present(skb)) {
 		tx_flags |= E1000_TX_FLAGS_VLAN;
 		tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
 	}
@@ -3713,12 +3761,12 @@ static void e1000_receive_skb(struct e1000_adapter *adapter, u8 status,
 {
 	skb->protocol = eth_type_trans(skb, adapter->netdev);
 
-	if ((unlikely(adapter->vlgrp && (status & E1000_RXD_STAT_VP))))
-		vlan_gro_receive(&adapter->napi, adapter->vlgrp,
-				 le16_to_cpu(vlan) & E1000_RXD_SPC_VLAN_MASK,
-				 skb);
-	else
-		napi_gro_receive(&adapter->napi, skb);
+	if (status & E1000_RXD_STAT_VP) {
+		u16 vid = le16_to_cpu(vlan) & E1000_RXD_SPC_VLAN_MASK;
+
+		__vlan_hwaccel_put_tag(skb, vid);
+	}
+	napi_gro_receive(&adapter->napi, skb);
 }
 
 /**
@@ -4501,46 +4549,61 @@ void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value)
 	outl(value, port);
 }
 
-static void e1000_vlan_rx_register(struct net_device *netdev,
-				   struct vlan_group *grp)
+static bool e1000_vlan_used(struct e1000_adapter *adapter)
+{
+	u16 vid;
+
+	for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID)
+		return true;
+	return false;
+}
+
+static void e1000_vlan_filter_on_off(struct e1000_adapter *adapter,
+				     bool filter_on)
 {
-	struct e1000_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
-	u32 ctrl, rctl;
+	u32 rctl;
 
 	if (!test_bit(__E1000_DOWN, &adapter->flags))
 		e1000_irq_disable(adapter);
-	adapter->vlgrp = grp;
-
-	if (grp) {
-		/* enable VLAN tag insert/strip */
-		ctrl = er32(CTRL);
-		ctrl |= E1000_CTRL_VME;
-		ew32(CTRL, ctrl);
 
+	if (filter_on) {
 		/* enable VLAN receive filtering */
 		rctl = er32(RCTL);
 		rctl &= ~E1000_RCTL_CFIEN;
-		if (!(netdev->flags & IFF_PROMISC))
+		if (!(adapter->netdev->flags & IFF_PROMISC))
 			rctl |= E1000_RCTL_VFE;
 		ew32(RCTL, rctl);
 		e1000_update_mng_vlan(adapter);
 	} else {
-		/* disable VLAN tag insert/strip */
-		ctrl = er32(CTRL);
-		ctrl &= ~E1000_CTRL_VME;
-		ew32(CTRL, ctrl);
-
 		/* disable VLAN receive filtering */
 		rctl = er32(RCTL);
 		rctl &= ~E1000_RCTL_VFE;
 		ew32(RCTL, rctl);
+	}
 
-		if (adapter->mng_vlan_id != (u16)E1000_MNG_VLAN_NONE) {
-			e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
-			adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
-		}
+	if (!test_bit(__E1000_DOWN, &adapter->flags))
+		e1000_irq_enable(adapter);
+}
+
+static void e1000_vlan_mode(struct net_device *netdev, u32 features)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	u32 ctrl;
+
+	if (!test_bit(__E1000_DOWN, &adapter->flags))
+		e1000_irq_disable(adapter);
+
+	ctrl = er32(CTRL);
+	if (features & NETIF_F_HW_VLAN_RX) {
+		/* enable VLAN tag insert/strip */
+		ctrl |= E1000_CTRL_VME;
+	} else {
+		/* disable VLAN tag insert/strip */
+		ctrl &= ~E1000_CTRL_VME;
 	}
+	ew32(CTRL, ctrl);
 
 	if (!test_bit(__E1000_DOWN, &adapter->flags))
 		e1000_irq_enable(adapter);
@@ -4556,11 +4619,17 @@ static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
 	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
 	    (vid == adapter->mng_vlan_id))
 		return;
+
+	if (!e1000_vlan_used(adapter))
+		e1000_vlan_filter_on_off(adapter, true);
+
 	/* add VID to filter table */
 	index = (vid >> 5) & 0x7F;
 	vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
 	vfta |= (1 << (vid & 0x1F));
 	e1000_write_vfta(hw, index, vfta);
+
+	set_bit(vid, adapter->active_vlans);
 }
 
 static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
@@ -4571,7 +4640,6 @@ static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
 
 	if (!test_bit(__E1000_DOWN, &adapter->flags))
 		e1000_irq_disable(adapter);
-	vlan_group_set_device(adapter->vlgrp, vid, NULL);
 	if (!test_bit(__E1000_DOWN, &adapter->flags))
 		e1000_irq_enable(adapter);
 
@@ -4580,20 +4648,23 @@ static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
 	vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
 	vfta &= ~(1 << (vid & 0x1F));
 	e1000_write_vfta(hw, index, vfta);
+
+	clear_bit(vid, adapter->active_vlans);
+
+	if (!e1000_vlan_used(adapter))
+		e1000_vlan_filter_on_off(adapter, false);
 }
 
 static void e1000_restore_vlan(struct e1000_adapter *adapter)
 {
-	e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp);
+	u16 vid;
 
-	if (adapter->vlgrp) {
-		u16 vid;
-		for (vid = 0; vid < VLAN_N_VID; vid++) {
-			if (!vlan_group_get_device(adapter->vlgrp, vid))
-				continue;
-			e1000_vlan_rx_add_vid(adapter->netdev, vid);
-		}
-	}
+	if (!e1000_vlan_used(adapter))
+		return;
+
+	e1000_vlan_filter_on_off(adapter, true);
+	for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID)
+		e1000_vlan_rx_add_vid(adapter->netdev, vid);
 }
 
 int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)