Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

1 files changed, 1418 insertions, 473 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 9dd13ad12ce..ca842163dce 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1,7 +1,7 @@
 /*******************************************************************************
 
   Intel(R) Gigabit Ethernet Linux driver
-  Copyright(c) 2007 Intel Corporation.
+  Copyright(c) 2007-2009 Intel Corporation.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms and conditions of the GNU General Public License,
@@ -34,6 +34,7 @@
 #include <linux/ipv6.h>
 #include <net/checksum.h>
 #include <net/ip6_checksum.h>
+#include <linux/net_tstamp.h>
 #include <linux/mii.h>
 #include <linux/ethtool.h>
 #include <linux/if_vlan.h>
@@ -48,12 +49,12 @@
 #endif
 #include "igb.h"
 
-#define DRV_VERSION "1.2.45-k2"
+#define DRV_VERSION "1.3.16-k2"
 char igb_driver_name[] = "igb";
 char igb_driver_version[] = DRV_VERSION;
 static const char igb_driver_string[] =
 				"Intel(R) Gigabit Ethernet Network Driver";
-static const char igb_copyright[] = "Copyright (c) 2008 Intel Corporation.";
+static const char igb_copyright[] = "Copyright (c) 2007-2009 Intel Corporation.";
 
 static const struct e1000_info *igb_info_tbl[] = {
 	[board_82575] = &e1000_82575_info,
@@ -61,8 +62,10 @@ static const struct e1000_info *igb_info_tbl[] = {
 
 static struct pci_device_id igb_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576), board_82575 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_FIBER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_SERDES), board_82575 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_QUAD_COPPER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_COPPER), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575EB_FIBER_SERDES), board_82575 },
 	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82575GB_QUAD_COPPER), board_82575 },
@@ -105,7 +108,6 @@ static irqreturn_t igb_intr_msi(int irq, void *);
 static irqreturn_t igb_msix_other(int irq, void *);
 static irqreturn_t igb_msix_rx(int irq, void *);
 static irqreturn_t igb_msix_tx(int irq, void *);
-static int igb_clean_rx_ring_msix(struct napi_struct *, int);
 #ifdef CONFIG_IGB_DCA
 static void igb_update_rx_dca(struct igb_ring *);
 static void igb_update_tx_dca(struct igb_ring *);
@@ -115,9 +117,6 @@ static bool igb_clean_tx_irq(struct igb_ring *);
 static int igb_poll(struct napi_struct *, int);
 static bool igb_clean_rx_irq_adv(struct igb_ring *, int *, int);
 static void igb_alloc_rx_buffers_adv(struct igb_ring *, int);
-#ifdef CONFIG_IGB_LRO
-static int igb_get_skb_hdr(struct sk_buff *skb, void **, void **, u64 *, void *);
-#endif
 static int igb_ioctl(struct net_device *, struct ifreq *, int cmd);
 static void igb_tx_timeout(struct net_device *);
 static void igb_reset_task(struct work_struct *);
@@ -125,6 +124,16 @@ static void igb_vlan_rx_register(struct net_device *, struct vlan_group *);
 static void igb_vlan_rx_add_vid(struct net_device *, u16);
 static void igb_vlan_rx_kill_vid(struct net_device *, u16);
 static void igb_restore_vlan(struct igb_adapter *);
+static void igb_ping_all_vfs(struct igb_adapter *);
+static void igb_msg_task(struct igb_adapter *);
+static int igb_rcv_msg_from_vf(struct igb_adapter *, u32);
+static inline void igb_set_rah_pool(struct e1000_hw *, int , int);
+static void igb_set_mc_list_pools(struct igb_adapter *, int, u16);
+static void igb_vmm_control(struct igb_adapter *);
+static inline void igb_set_vmolr(struct e1000_hw *, int);
+static inline int igb_set_vf_rlpml(struct igb_adapter *, int, int);
+static int igb_set_vf_mac(struct igb_adapter *adapter, int, unsigned char *);
+static void igb_restore_vf_multicasts(struct igb_adapter *adapter);
 
 static int igb_suspend(struct pci_dev *, pm_message_t);
 #ifdef CONFIG_PM
@@ -139,12 +148,18 @@ static struct notifier_block dca_notifier = {
 	.priority	= 0
 };
 #endif
-
 #ifdef CONFIG_NET_POLL_CONTROLLER
 /* for netdump / net console */
 static void igb_netpoll(struct net_device *);
 #endif
 
+#ifdef CONFIG_PCI_IOV
+static ssize_t igb_set_num_vfs(struct device *, struct device_attribute *,
+                               const char *, size_t);
+static ssize_t igb_show_num_vfs(struct device *, struct device_attribute *,
+                               char *);
+DEVICE_ATTR(num_vfs, S_IRUGO | S_IWUSR, igb_show_num_vfs, igb_set_num_vfs);
+#endif
 static pci_ers_result_t igb_io_error_detected(struct pci_dev *,
 		     pci_channel_state_t);
 static pci_ers_result_t igb_io_slot_reset(struct pci_dev *);
@@ -178,6 +193,54 @@ MODULE_DESCRIPTION("Intel(R) Gigabit Ethernet Network Driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 
+/**
+ * Scale the NIC clock cycle by a large factor so that
+ * relatively small clock corrections can be added or
+ * substracted at each clock tick. The drawbacks of a
+ * large factor are a) that the clock register overflows
+ * more quickly (not such a big deal) and b) that the
+ * increment per tick has to fit into 24 bits.
+ *
+ * Note that
+ *   TIMINCA = IGB_TSYNC_CYCLE_TIME_IN_NANOSECONDS *
+ *             IGB_TSYNC_SCALE
+ *   TIMINCA += TIMINCA * adjustment [ppm] / 1e9
+ *
+ * The base scale factor is intentionally a power of two
+ * so that the division in %struct timecounter can be done with
+ * a shift.
+ */
+#define IGB_TSYNC_SHIFT (19)
+#define IGB_TSYNC_SCALE (1<<IGB_TSYNC_SHIFT)
+
+/**
+ * The duration of one clock cycle of the NIC.
+ *
+ * @todo This hard-coded value is part of the specification and might change
+ * in future hardware revisions. Add revision check.
+ */
+#define IGB_TSYNC_CYCLE_TIME_IN_NANOSECONDS 16
+
+#if (IGB_TSYNC_SCALE * IGB_TSYNC_CYCLE_TIME_IN_NANOSECONDS) >= (1<<24)
+# error IGB_TSYNC_SCALE and/or IGB_TSYNC_CYCLE_TIME_IN_NANOSECONDS are too large to fit into TIMINCA
+#endif
+
+/**
+ * igb_read_clock - read raw cycle counter (to be used by time counter)
+ */
+static cycle_t igb_read_clock(const struct cyclecounter *tc)
+{
+	struct igb_adapter *adapter =
+		container_of(tc, struct igb_adapter, cycles);
+	struct e1000_hw *hw = &adapter->hw;
+	u64 stamp;
+
+	stamp =  rd32(E1000_SYSTIML);
+	stamp |= (u64)rd32(E1000_SYSTIMH) << 32ULL;
+
+	return stamp;
+}
+
 #ifdef DEBUG
 /**
  * igb_get_hw_dev_name - return device name string
@@ -188,9 +251,44 @@ char *igb_get_hw_dev_name(struct e1000_hw *hw)
 	struct igb_adapter *adapter = hw->back;
 	return adapter->netdev->name;
 }
+
+/**
+ * igb_get_time_str - format current NIC and system time as string
+ */
+static char *igb_get_time_str(struct igb_adapter *adapter,
+			      char buffer[160])
+{
+	cycle_t hw = adapter->cycles.read(&adapter->cycles);
+	struct timespec nic = ns_to_timespec(timecounter_read(&adapter->clock));
+	struct timespec sys;
+	struct timespec delta;
+	getnstimeofday(&sys);
+
+	delta = timespec_sub(nic, sys);
+
+	sprintf(buffer,
+		"HW %llu, NIC %ld.%09lus, SYS %ld.%09lus, NIC-SYS %lds + %09luns",
+		hw,
+		(long)nic.tv_sec, nic.tv_nsec,
+		(long)sys.tv_sec, sys.tv_nsec,
+		(long)delta.tv_sec, delta.tv_nsec);
+
+	return buffer;
+}
 #endif
 
 /**
+ * igb_desc_unused - calculate if we have unused descriptors
+ **/
+static int igb_desc_unused(struct igb_ring *ring)
+{
+	if (ring->next_to_clean > ring->next_to_use)
+		return ring->next_to_clean - ring->next_to_use - 1;
+
+	return ring->count + ring->next_to_clean - ring->next_to_use - 1;
+}
+
+/**
  * igb_init_module - Driver Registration Routine
  *
  * igb_init_module is the first routine called when the driver is
@@ -243,6 +341,7 @@ module_exit(igb_exit_module);
 static void igb_cache_ring_register(struct igb_adapter *adapter)
 {
 	int i;
+	unsigned int rbase_offset = adapter->vfs_allocated_count;
 
 	switch (adapter->hw.mac.type) {
 	case e1000_82576:
@@ -252,9 +351,11 @@ static void igb_cache_ring_register(struct igb_adapter *adapter)
 		 * and continue consuming queues in the same sequence
 		 */
 		for (i = 0; i < adapter->num_rx_queues; i++)
-			adapter->rx_ring[i].reg_idx = Q_IDX_82576(i);
+			adapter->rx_ring[i].reg_idx = rbase_offset +
+			                              Q_IDX_82576(i);
 		for (i = 0; i < adapter->num_tx_queues; i++)
-			adapter->tx_ring[i].reg_idx = Q_IDX_82576(i);
+			adapter->tx_ring[i].reg_idx = rbase_offset +
+			                              Q_IDX_82576(i);
 		break;
 	case e1000_82575:
 	default:
@@ -354,7 +455,7 @@ static void igb_assign_vector(struct igb_adapter *adapter, int rx_queue,
 		   a vector number along with a "valid" bit.  Sadly, the layout
 		   of the table is somewhat counterintuitive. */
 		if (rx_queue > IGB_N0_QUEUE) {
-			index = (rx_queue >> 1);
+			index = (rx_queue >> 1) + adapter->vfs_allocated_count;
 			ivar = array_rd32(E1000_IVAR0, index);
 			if (rx_queue & 0x1) {
 				/* vector goes into third byte of register */
@@ -369,7 +470,7 @@ static void igb_assign_vector(struct igb_adapter *adapter, int rx_queue,
 			array_wr32(E1000_IVAR0, index, ivar);
 		}
 		if (tx_queue > IGB_N0_QUEUE) {
-			index = (tx_queue >> 1);
+			index = (tx_queue >> 1) + adapter->vfs_allocated_count;
 			ivar = array_rd32(E1000_IVAR0, index);
 			if (tx_queue & 0x1) {
 				/* vector goes into high byte of register */
@@ -407,7 +508,7 @@ static void igb_configure_msix(struct igb_adapter *adapter)
 		/* Turn on MSI-X capability first, or our settings
 		 * won't stick.  And it will take days to debug. */
 		wr32(E1000_GPIE, E1000_GPIE_MSIX_MODE |
-				   E1000_GPIE_PBA | E1000_GPIE_EIAME | 
+				   E1000_GPIE_PBA | E1000_GPIE_EIAME |
  				   E1000_GPIE_NSICR);
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
@@ -506,9 +607,6 @@ static int igb_request_msix(struct igb_adapter *adapter)
 			goto out;
 		ring->itr_register = E1000_EITR(0) + (vector << 2);
 		ring->itr_val = adapter->itr;
-		/* overwrite the poll routine for MSIX, we've already done
-		 * netif_napi_add */
-		ring->napi.poll = &igb_clean_rx_ring_msix;
 		vector++;
 	}
 
@@ -546,6 +644,11 @@ static void igb_set_interrupt_capability(struct igb_adapter *adapter)
 	int err;
 	int numvecs, i;
 
+	/* Number of supported queues. */
+	/* Having more queues than CPUs doesn't make sense. */
+	adapter->num_rx_queues = min_t(u32, IGB_MAX_RX_QUEUES, num_online_cpus());
+	adapter->num_tx_queues = min_t(u32, IGB_MAX_TX_QUEUES, num_online_cpus());
+
 	numvecs = adapter->num_tx_queues + adapter->num_rx_queues + 1;
 	adapter->msix_entries = kcalloc(numvecs, sizeof(struct msix_entry),
 					GFP_KERNEL);
@@ -687,7 +790,10 @@ static void igb_irq_enable(struct igb_adapter *adapter)
 		wr32(E1000_EIAC, adapter->eims_enable_mask);
 		wr32(E1000_EIAM, adapter->eims_enable_mask);
 		wr32(E1000_EIMS, adapter->eims_enable_mask);
-		wr32(E1000_IMS, E1000_IMS_LSC);
+		if (adapter->vfs_allocated_count)
+			wr32(E1000_MBVFIMR, 0xFF);
+		wr32(E1000_IMS, (E1000_IMS_LSC | E1000_IMS_VMMB |
+		                 E1000_IMS_DOUTSYNC));
 	} else {
 		wr32(E1000_IMS, IMS_ENABLE_MASK);
 		wr32(E1000_IAM, IMS_ENABLE_MASK);
@@ -778,12 +884,12 @@ static void igb_configure(struct igb_adapter *adapter)
 
 	igb_rx_fifo_flush_82575(&adapter->hw);
 
-	/* call IGB_DESC_UNUSED which always leaves
+	/* call igb_desc_unused which always leaves
 	 * at least 1 descriptor unused to make sure
 	 * next_to_use != next_to_clean */
 	for (i = 0; i < adapter->num_rx_queues; i++) {
 		struct igb_ring *ring = &adapter->rx_ring[i];
-		igb_alloc_rx_buffers_adv(ring, IGB_DESC_UNUSED(ring));
+		igb_alloc_rx_buffers_adv(ring, igb_desc_unused(ring));
 	}
 
 
@@ -811,6 +917,10 @@ int igb_up(struct igb_adapter *adapter)
 	if (adapter->msix_entries)
 		igb_configure_msix(adapter);
 
+	igb_vmm_control(adapter);
+	igb_set_rah_pool(hw, adapter->vfs_allocated_count, 0);
+	igb_set_vmolr(hw, adapter->vfs_allocated_count);
+
 	/* Clear any pending interrupts. */
 	rd32(E1000_ICR);
 	igb_irq_enable(adapter);
@@ -856,6 +966,10 @@ void igb_down(struct igb_adapter *adapter)
 
 	netdev->tx_queue_len = adapter->tx_queue_len;
 	netif_carrier_off(netdev);
+
+	/* record the stats before reset*/
+	igb_update_stats(adapter);
+
 	adapter->link_speed = 0;
 	adapter->link_duplex = 0;
 
@@ -886,11 +1000,14 @@ void igb_reset(struct igb_adapter *adapter)
 	/* Repartition Pba for greater than 9k mtu
 	 * To take effect CTRL.RST is required.
 	 */
-	if (mac->type != e1000_82576) {
-	pba = E1000_PBA_34K;
-	}
-	else {
+	switch (mac->type) {
+	case e1000_82576:
 		pba = E1000_PBA_64K;
+		break;
+	case e1000_82575:
+	default:
+		pba = E1000_PBA_34K;
+		break;
 	}
 
 	if ((adapter->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) &&
@@ -912,7 +1029,7 @@ void igb_reset(struct igb_adapter *adapter)
 		/* the tx fifo also stores 16 bytes of information about the tx
 		 * but don't include ethernet FCS because hardware appends it */
 		min_tx_space = (adapter->max_frame_size +
-				sizeof(struct e1000_tx_desc) -
+				sizeof(union e1000_adv_tx_desc) -
 				ETH_FCS_LEN) * 2;
 		min_tx_space = ALIGN(min_tx_space, 1024);
 		min_tx_space >>= 10;
@@ -956,6 +1073,20 @@ void igb_reset(struct igb_adapter *adapter)
 	fc->send_xon = 1;
 	fc->type = fc->original_type;
 
+	/* disable receive for all VFs and wait one second */
+	if (adapter->vfs_allocated_count) {
+		int i;
+		for (i = 0 ; i < adapter->vfs_allocated_count; i++)
+			adapter->vf_data[i].clear_to_send = false;
+
+		/* ping all the active vfs to let them know we are going down */
+			igb_ping_all_vfs(adapter);
+
+		/* disable transmits and receives */
+		wr32(E1000_VFRE, 0);
+		wr32(E1000_VFTE, 0);
+	}
+
 	/* Allow time for pending master requests to run */
 	adapter->hw.mac.ops.reset_hw(&adapter->hw);
 	wr32(E1000_WUC, 0);
@@ -972,21 +1103,6 @@ void igb_reset(struct igb_adapter *adapter)
 	igb_get_phy_info(&adapter->hw);
 }
 
-/**
- * igb_is_need_ioport - determine if an adapter needs ioport resources or not
- * @pdev: PCI device information struct
- *
- * Returns true if an adapter needs ioport resources
- **/
-static int igb_is_need_ioport(struct pci_dev *pdev)
-{
-	switch (pdev->device) {
-	/* Currently there are no adapters that need ioport resources */
-	default:
-		return false;
-	}
-}
-
 static const struct net_device_ops igb_netdev_ops = {
 	.ndo_open 		= igb_open,
 	.ndo_stop		= igb_close,
@@ -1025,21 +1141,12 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	struct e1000_hw *hw;
 	const struct e1000_info *ei = igb_info_tbl[ent->driver_data];
 	unsigned long mmio_start, mmio_len;
-	int i, err, pci_using_dac;
+	int err, pci_using_dac;
 	u16 eeprom_data = 0;
 	u16 eeprom_apme_mask = IGB_EEPROM_APME;
 	u32 part_num;
-	int bars, need_ioport;
 
-	/* do not allocate ioport bars when not needed */
-	need_ioport = igb_is_need_ioport(pdev);
-	if (need_ioport) {
-		bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
-		err = pci_enable_device(pdev);
-	} else {
-		bars = pci_select_bars(pdev, IORESOURCE_MEM);
-		err = pci_enable_device_mem(pdev);
-	}
+	err = pci_enable_device_mem(pdev);
 	if (err)
 		return err;
 
@@ -1061,7 +1168,9 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 		}
 	}
 
-	err = pci_request_selected_regions(pdev, bars, igb_driver_name);
+	err = pci_request_selected_regions(pdev, pci_select_bars(pdev,
+	                                   IORESOURCE_MEM),
+	                                   igb_driver_name);
 	if (err)
 		goto err_pci_reg;
 
@@ -1076,7 +1185,8 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	pci_save_state(pdev);
 
 	err = -ENOMEM;
-	netdev = alloc_etherdev_mq(sizeof(struct igb_adapter), IGB_MAX_TX_QUEUES);
+	netdev = alloc_etherdev_mq(sizeof(struct igb_adapter),
+	                           IGB_ABS_MAX_TX_QUEUES);
 	if (!netdev)
 		goto err_alloc_etherdev;
 
@@ -1089,15 +1199,13 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	hw = &adapter->hw;
 	hw->back = adapter;
 	adapter->msg_enable = NETIF_MSG_DRV | NETIF_MSG_PROBE;
-	adapter->bars = bars;
-	adapter->need_ioport = need_ioport;
 
 	mmio_start = pci_resource_start(pdev, 0);
 	mmio_len = pci_resource_len(pdev, 0);
 
 	err = -EIO;
-	adapter->hw.hw_addr = ioremap(mmio_start, mmio_len);
-	if (!adapter->hw.hw_addr)
+	hw->hw_addr = ioremap(mmio_start, mmio_len);
+	if (!hw->hw_addr)
 		goto err_ioremap;
 
 	netdev->netdev_ops = &igb_netdev_ops;
@@ -1125,8 +1233,9 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	/* Initialize skew-specific constants */
 	err = ei->get_invariants(hw);
 	if (err)
-		goto err_hw_init;
+		goto err_sw_init;
 
+	/* setup the private structure */
 	err = igb_sw_init(adapter);
 	if (err)
 		goto err_sw_init;
@@ -1158,27 +1267,25 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 			"PHY reset is blocked due to SOL/IDER session.\n");
 
 	netdev->features = NETIF_F_SG |
-			   NETIF_F_HW_CSUM |
+			   NETIF_F_IP_CSUM |
 			   NETIF_F_HW_VLAN_TX |
 			   NETIF_F_HW_VLAN_RX |
 			   NETIF_F_HW_VLAN_FILTER;
 
+	netdev->features |= NETIF_F_IPV6_CSUM;
 	netdev->features |= NETIF_F_TSO;
 	netdev->features |= NETIF_F_TSO6;
 
-#ifdef CONFIG_IGB_LRO
-	netdev->features |= NETIF_F_LRO;
-#endif
+	netdev->features |= NETIF_F_GRO;
 
 	netdev->vlan_features |= NETIF_F_TSO;
 	netdev->vlan_features |= NETIF_F_TSO6;
-	netdev->vlan_features |= NETIF_F_HW_CSUM;
+	netdev->vlan_features |= NETIF_F_IP_CSUM;
 	netdev->vlan_features |= NETIF_F_SG;
 
 	if (pci_using_dac)
 		netdev->features |= NETIF_F_HIGHDMA;
 
-	netdev->features |= NETIF_F_LLTX;
 	adapter->en_mng_pt = igb_enable_mng_pass_thru(&adapter->hw);
 
 	/* before reading the NVM, reset the controller to put the device in a
@@ -1205,25 +1312,15 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 		goto err_eeprom;
 	}
 
-	init_timer(&adapter->watchdog_timer);
-	adapter->watchdog_timer.function = &igb_watchdog;
-	adapter->watchdog_timer.data = (unsigned long) adapter;
-
-	init_timer(&adapter->phy_info_timer);
-	adapter->phy_info_timer.function = &igb_update_phy_info;
-	adapter->phy_info_timer.data = (unsigned long) adapter;
+	setup_timer(&adapter->watchdog_timer, &igb_watchdog,
+	            (unsigned long) adapter);
+	setup_timer(&adapter->phy_info_timer, &igb_update_phy_info,
+	            (unsigned long) adapter);
 
 	INIT_WORK(&adapter->reset_task, igb_reset_task);
 	INIT_WORK(&adapter->watchdog_task, igb_watchdog_task);
 
-	/* Initialize link & ring properties that are user-changeable */
-	adapter->tx_ring->count = 256;
-	for (i = 0; i < adapter->num_tx_queues; i++)
-		adapter->tx_ring[i].count = adapter->tx_ring->count;
-	adapter->rx_ring->count = 256;
-	for (i = 0; i < adapter->num_rx_queues; i++)
-		adapter->rx_ring[i].count = adapter->rx_ring->count;
-
+	/* Initialize link properties that are user-changeable */
 	adapter->fc_autoneg = true;
 	hw->mac.autoneg = true;
 	hw->phy.autoneg_advertised = 0x2f;
@@ -1231,7 +1328,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	hw->fc.original_type = e1000_fc_default;
 	hw->fc.type = e1000_fc_default;
 
-	adapter->itr_setting = 3;
+	adapter->itr_setting = IGB_DEFAULT_ITR;
 	adapter->itr = IGB_START_ITR;
 
 	igb_validate_mdi_setting(hw);
@@ -1242,10 +1339,10 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	 * enable the ACPI Magic Packet filter
 	 */
 
-	if (hw->bus.func == 0 ||
-	    hw->device_id == E1000_DEV_ID_82575EB_COPPER)
-		hw->nvm.ops.read_nvm(hw, NVM_INIT_CONTROL3_PORT_A, 1,
-				     &eeprom_data);
+	if (hw->bus.func == 0)
+		hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
+	else if (hw->bus.func == 1)
+		hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
 
 	if (eeprom_data & eeprom_apme_mask)
 		adapter->eeprom_wol |= E1000_WUFC_MAG;
@@ -1265,6 +1362,16 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 		if (rd32(E1000_STATUS) & E1000_STATUS_FUNC_1)
 			adapter->eeprom_wol = 0;
 		break;
+	case E1000_DEV_ID_82576_QUAD_COPPER:
+		/* if quad port adapter, disable WoL on all but port A */
+		if (global_quad_port_a != 0)
+			adapter->eeprom_wol = 0;
+		else
+			adapter->flags |= IGB_FLAG_QUAD_PORT_A;
+		/* Reset for multiple quad port adapters */
+		if (++global_quad_port_a == 4)
+			global_quad_port_a = 0;
+		break;
 	}
 
 	/* initialize the wol settings based on the eeprom settings */
@@ -1287,17 +1394,82 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	if (err)
 		goto err_register;
 
+#ifdef CONFIG_PCI_IOV
+	/* since iov functionality isn't critical to base device function we
+	 * can accept failure.  If it fails we don't allow iov to be enabled */
+	if (hw->mac.type == e1000_82576) {
+		err = pci_enable_sriov(pdev, 0);
+		if (!err)
+			err = device_create_file(&netdev->dev,
+			                         &dev_attr_num_vfs);
+		if (err)
+			dev_err(&pdev->dev, "Failed to initialize IOV\n");
+	}
+
+#endif
 #ifdef CONFIG_IGB_DCA
 	if (dca_add_requester(&pdev->dev) == 0) {
 		adapter->flags |= IGB_FLAG_DCA_ENABLED;
 		dev_info(&pdev->dev, "DCA enabled\n");
 		/* Always use CB2 mode, difference is masked
 		 * in the CB driver. */
-		wr32(E1000_DCA_CTRL, 2);
+		wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_CB2);
 		igb_setup_dca(adapter);
 	}
 #endif
 
+	/*
+	 * Initialize hardware timer: we keep it running just in case
+	 * that some program needs it later on.
+	 */
+	memset(&adapter->cycles, 0, sizeof(adapter->cycles));
+	adapter->cycles.read = igb_read_clock;
+	adapter->cycles.mask = CLOCKSOURCE_MASK(64);
+	adapter->cycles.mult = 1;
+	adapter->cycles.shift = IGB_TSYNC_SHIFT;
+	wr32(E1000_TIMINCA,
+	     (1<<24) |
+	     IGB_TSYNC_CYCLE_TIME_IN_NANOSECONDS * IGB_TSYNC_SCALE);
+#if 0
+	/*
+	 * Avoid rollover while we initialize by resetting the time counter.
+	 */
+	wr32(E1000_SYSTIML, 0x00000000);
+	wr32(E1000_SYSTIMH, 0x00000000);
+#else
+	/*
+	 * Set registers so that rollover occurs soon to test this.
+	 */
+	wr32(E1000_SYSTIML, 0x00000000);
+	wr32(E1000_SYSTIMH, 0xFF800000);
+#endif
+	wrfl();
+	timecounter_init(&adapter->clock,
+			 &adapter->cycles,
+			 ktime_to_ns(ktime_get_real()));
+
+	/*
+	 * Synchronize our NIC clock against system wall clock. NIC
+	 * time stamp reading requires ~3us per sample, each sample
+	 * was pretty stable even under load => only require 10
+	 * samples for each offset comparison.
+	 */
+	memset(&adapter->compare, 0, sizeof(adapter->compare));
+	adapter->compare.source = &adapter->clock;
+	adapter->compare.target = ktime_get_real;
+	adapter->compare.num_samples = 10;
+	timecompare_update(&adapter->compare, 0);
+
+#ifdef DEBUG
+	{
+		char buffer[160];
+		printk(KERN_DEBUG
+			"igb: %s: hw %p initialized timer\n",
+			igb_get_time_str(adapter, buffer),
+			&adapter->hw);
+	}
+#endif
+
 	dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n");
 	/* print bus type/speed/width info */
 	dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n",
@@ -1330,15 +1502,14 @@ err_eeprom:
 	if (hw->flash_address)
 		iounmap(hw->flash_address);
 
-	igb_remove_device(hw);
 	igb_free_queues(adapter);
 err_sw_init:
-err_hw_init:
 	iounmap(hw->hw_addr);
 err_ioremap:
 	free_netdev(netdev);
 err_alloc_etherdev:
-	pci_release_selected_regions(pdev, bars);
+	pci_release_selected_regions(pdev, pci_select_bars(pdev,
+	                             IORESOURCE_MEM));
 err_pci_reg:
 err_dma:
 	pci_disable_device(pdev);
@@ -1358,9 +1529,7 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct igb_adapter *adapter = netdev_priv(netdev);
-#ifdef CONFIG_IGB_DCA
 	struct e1000_hw *hw = &adapter->hw;
-#endif
 	int err;
 
 	/* flush_scheduled work may reschedule our watchdog task, so
@@ -1376,7 +1545,7 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 		dev_info(&pdev->dev, "DCA disabled\n");
 		dca_remove_requester(&pdev->dev);
 		adapter->flags &= ~IGB_FLAG_DCA_ENABLED;
-		wr32(E1000_DCA_CTRL, 1);
+		wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE);
 	}
 #endif
 
@@ -1389,15 +1558,29 @@ static void __devexit igb_remove(struct pci_dev *pdev)
 	if (!igb_check_reset_block(&adapter->hw))
 		igb_reset_phy(&adapter->hw);
 
-	igb_remove_device(&adapter->hw);
 	igb_reset_interrupt_capability(adapter);
 
 	igb_free_queues(adapter);
 
-	iounmap(adapter->hw.hw_addr);
-	if (adapter->hw.flash_address)
-		iounmap(adapter->hw.flash_address);
-	pci_release_selected_regions(pdev, adapter->bars);
+#ifdef CONFIG_PCI_IOV
+	/* reclaim resources allocated to VFs */
+	if (adapter->vf_data) {
+		/* disable iov and allow time for transactions to clear */
+		pci_disable_sriov(pdev);
+		msleep(500);
+
+		kfree(adapter->vf_data);
+		adapter->vf_data = NULL;
+		wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ);
+		msleep(100);
+		dev_info(&pdev->dev, "IOV Disabled\n");
+	}
+#endif
+	iounmap(hw->hw_addr);
+	if (hw->flash_address)
+		iounmap(hw->flash_address);
+	pci_release_selected_regions(pdev, pci_select_bars(pdev,
+	                             IORESOURCE_MEM));
 
 	free_netdev(netdev);
 
@@ -1432,11 +1615,6 @@ static int __devinit igb_sw_init(struct igb_adapter *adapter)
 	adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
 	adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
 
-	/* Number of supported queues. */
-	/* Having more queues than CPUs doesn't make sense. */
-	adapter->num_rx_queues = min_t(u32, IGB_MAX_RX_QUEUES, num_online_cpus());
-	adapter->num_tx_queues = min_t(u32, IGB_MAX_TX_QUEUES, num_online_cpus());
-
 	/* This call may decrease the number of queues depending on
 	 * interrupt mode. */
 	igb_set_interrupt_capability(adapter);
@@ -1499,6 +1677,10 @@ static int igb_open(struct net_device *netdev)
 	 * clean_rx handler before we do so.  */
 	igb_configure(adapter);
 
+	igb_vmm_control(adapter);
+	igb_set_rah_pool(hw, adapter->vfs_allocated_count, 0);
+	igb_set_vmolr(hw, adapter->vfs_allocated_count);
+
 	err = igb_request_irq(adapter);
 	if (err)
 		goto err_req_irq;
@@ -1574,7 +1756,6 @@ static int igb_close(struct net_device *netdev)
  *
  * Return 0 on success, negative on failure
  **/
-
 int igb_setup_tx_resources(struct igb_adapter *adapter,
 			   struct igb_ring *tx_ring)
 {
@@ -1588,7 +1769,7 @@ int igb_setup_tx_resources(struct igb_adapter *adapter,
 	memset(tx_ring->buffer_info, 0, size);
 
 	/* round up to nearest 4K */
-	tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc);
+	tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc);
 	tx_ring->size = ALIGN(tx_ring->size, 4096);
 
 	tx_ring->desc = pci_alloc_consistent(pdev, tx_ring->size,
@@ -1635,7 +1816,7 @@ static int igb_setup_all_tx_resources(struct igb_adapter *adapter)
 	for (i = 0; i < IGB_MAX_TX_QUEUES; i++) {
 		r_idx = i % adapter->num_tx_queues;
 		adapter->multi_tx_table[i] = &adapter->tx_ring[r_idx];
-	}	
+	}
 	return err;
 }
 
@@ -1654,13 +1835,13 @@ static void igb_configure_tx(struct igb_adapter *adapter)
 	int i, j;
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
-		struct igb_ring *ring = &(adapter->tx_ring[i]);
+		struct igb_ring *ring = &adapter->tx_ring[i];
 		j = ring->reg_idx;
 		wr32(E1000_TDLEN(j),
-				ring->count * sizeof(struct e1000_tx_desc));
+		     ring->count * sizeof(union e1000_adv_tx_desc));
 		tdba = ring->dma;
 		wr32(E1000_TDBAL(j),
-				tdba & 0x00000000ffffffffULL);
+		     tdba & 0x00000000ffffffffULL);
 		wr32(E1000_TDBAH(j), tdba >> 32);
 
 		ring->head = E1000_TDH(j);
@@ -1680,12 +1861,11 @@ static void igb_configure_tx(struct igb_adapter *adapter)
 		wr32(E1000_DCA_TXCTRL(j), txctrl);
 	}
 
-
-
-	/* Use the default values for the Tx Inter Packet Gap (IPG) timer */
+	/* disable queue 0 to prevent tail bump w/o re-configuration */
+	if (adapter->vfs_allocated_count)
+		wr32(E1000_TXDCTL(0), 0);
 
 	/* Program the Transmit Control Register */
-
 	tctl = rd32(E1000_TCTL);
 	tctl &= ~E1000_TCTL_CT;
 	tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
@@ -1709,21 +1889,12 @@ static void igb_configure_tx(struct igb_adapter *adapter)
  *
  * Returns 0 on success, negative on failure
  **/
-
 int igb_setup_rx_resources(struct igb_adapter *adapter,
 			   struct igb_ring *rx_ring)
 {
 	struct pci_dev *pdev = adapter->pdev;
 	int size, desc_len;
 
-#ifdef CONFIG_IGB_LRO
-	size = sizeof(struct net_lro_desc) * MAX_LRO_DESCRIPTORS;
-	rx_ring->lro_mgr.lro_arr = vmalloc(size);
-	if (!rx_ring->lro_mgr.lro_arr)
-		goto err;
-	memset(rx_ring->lro_mgr.lro_arr, 0, size);
-#endif
-
 	size = sizeof(struct igb_buffer) * rx_ring->count;
 	rx_ring->buffer_info = vmalloc(size);
 	if (!rx_ring->buffer_info)
@@ -1750,10 +1921,6 @@ int igb_setup_rx_resources(struct igb_adapter *adapter,
 	return 0;
 
 err:
-#ifdef CONFIG_IGB_LRO
-	vfree(rx_ring->lro_mgr.lro_arr);
-	rx_ring->lro_mgr.lro_arr = NULL;
-#endif
 	vfree(rx_ring->buffer_info);
 	dev_err(&adapter->pdev->dev, "Unable to allocate memory for "
 		"the receive descriptor ring\n");
@@ -1802,13 +1969,13 @@ static void igb_setup_rctl(struct igb_adapter *adapter)
 	rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC);
 
 	rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_RDMTS_HALF |
-		(adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
+		(hw->mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
 
 	/*
 	 * enable stripping of CRC. It's unlikely this will break BMC
 	 * redirection as it did with e1000. Newer features require
 	 * that the HW strips the CRC.
-	*/
+	 */
 	rctl |= E1000_RCTL_SECRC;
 
 	/*
@@ -1852,6 +2019,30 @@ static void igb_setup_rctl(struct igb_adapter *adapter)
 		srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF;
 	}
 
+	/* Attention!!!  For SR-IOV PF driver operations you must enable
+	 * queue drop for all VF and PF queues to prevent head of line blocking
+	 * if an un-trusted VF does not provide descriptors to hardware.
+	 */
+	if (adapter->vfs_allocated_count) {
+		u32 vmolr;
+
+		j = adapter->rx_ring[0].reg_idx;
+
+		/* set all queue drop enable bits */
+		wr32(E1000_QDE, ALL_QUEUES);
+		srrctl |= E1000_SRRCTL_DROP_EN;
+
+		/* disable queue 0 to prevent tail write w/o re-config */
+		wr32(E1000_RXDCTL(0), 0);
+
+		vmolr = rd32(E1000_VMOLR(j));
+		if (rctl & E1000_RCTL_LPE)
+			vmolr |= E1000_VMOLR_LPE;
+		if (adapter->num_rx_queues > 0)
+			vmolr |= E1000_VMOLR_RSSE;
+		wr32(E1000_VMOLR(j), vmolr);
+	}
+
 	for (i = 0; i < adapter->num_rx_queues; i++) {
 		j = adapter->rx_ring[i].reg_idx;
 		wr32(E1000_SRRCTL(j), srrctl);
@@ -1861,6 +2052,54 @@ static void igb_setup_rctl(struct igb_adapter *adapter)
 }
 
 /**
+ * igb_rlpml_set - set maximum receive packet size
+ * @adapter: board private structure
+ *
+ * Configure maximum receivable packet size.
+ **/
+static void igb_rlpml_set(struct igb_adapter *adapter)
+{
+	u32 max_frame_size = adapter->max_frame_size;
+	struct e1000_hw *hw = &adapter->hw;
+	u16 pf_id = adapter->vfs_allocated_count;
+
+	if (adapter->vlgrp)
+		max_frame_size += VLAN_TAG_SIZE;
+
+	/* if vfs are enabled we set RLPML to the largest possible request
+	 * size and set the VMOLR RLPML to the size we need */
+	if (pf_id) {
+		igb_set_vf_rlpml(adapter, max_frame_size, pf_id);
+		max_frame_size = MAX_STD_JUMBO_FRAME_SIZE + VLAN_TAG_SIZE;
+	}
+
+	wr32(E1000_RLPML, max_frame_size);
+}
+
+/**
+ * igb_configure_vt_default_pool - Configure VT default pool
+ * @adapter: board private structure
+ *
+ * Configure the default pool
+ **/
+static void igb_configure_vt_default_pool(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u16 pf_id = adapter->vfs_allocated_count;
+	u32 vtctl;
+
+	/* not in sr-iov mode - do nothing */
+	if (!pf_id)
+		return;
+
+	vtctl = rd32(E1000_VT_CTL);
+	vtctl &= ~(E1000_VT_CTL_DEFAULT_POOL_MASK |
+		   E1000_VT_CTL_DISABLE_DEF_POOL);
+	vtctl |= pf_id << E1000_VT_CTL_DEFAULT_POOL_SHIFT;
+	wr32(E1000_VT_CTL, vtctl);
+}
+
+/**
  * igb_configure_rx - Configure receive Unit after Reset
  * @adapter: board private structure
  *
@@ -1872,7 +2111,7 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 	struct e1000_hw *hw = &adapter->hw;
 	u32 rctl, rxcsum;
 	u32 rxdctl;
-	int i, j;
+	int i;
 
 	/* disable receives while setting up the descriptors */
 	rctl = rd32(E1000_RCTL);
@@ -1886,14 +2125,14 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 	/* Setup the HW Rx Head and Tail Descriptor Pointers and
 	 * the Base and Length of the Rx Descriptor Ring */
 	for (i = 0; i < adapter->num_rx_queues; i++) {
-		struct igb_ring *ring = &(adapter->rx_ring[i]);
-		j = ring->reg_idx;
+		struct igb_ring *ring = &adapter->rx_ring[i];
+		int j = ring->reg_idx;
 		rdba = ring->dma;
 		wr32(E1000_RDBAL(j),
-				rdba & 0x00000000ffffffffULL);
+		     rdba & 0x00000000ffffffffULL);
 		wr32(E1000_RDBAH(j), rdba >> 32);
 		wr32(E1000_RDLEN(j),
-			       ring->count * sizeof(union e1000_adv_rx_desc));
+		     ring->count * sizeof(union e1000_adv_rx_desc));
 
 		ring->head = E1000_RDH(j);
 		ring->tail = E1000_RDT(j);
@@ -1907,16 +2146,6 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 		rxdctl |= IGB_RX_HTHRESH << 8;
 		rxdctl |= IGB_RX_WTHRESH << 16;
 		wr32(E1000_RXDCTL(j), rxdctl);
-#ifdef CONFIG_IGB_LRO
-		/* Intitial LRO Settings */
-		ring->lro_mgr.max_aggr = MAX_LRO_AGGR;
-		ring->lro_mgr.max_desc = MAX_LRO_DESCRIPTORS;
-		ring->lro_mgr.get_skb_header = igb_get_skb_hdr;
-		ring->lro_mgr.features = LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID;
-		ring->lro_mgr.dev = adapter->netdev;
-		ring->lro_mgr.ip_summed = CHECKSUM_UNNECESSARY;
-		ring->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY;
-#endif
 	}
 
 	if (adapter->num_rx_queues > 1) {
@@ -1941,7 +2170,10 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 				writel(reta.dword,
 				       hw->hw_addr + E1000_RETA(0) + (j & ~3));
 		}
-		mrqc = E1000_MRQC_ENABLE_RSS_4Q;
+		if (adapter->vfs_allocated_count)
+			mrqc = E1000_MRQC_ENABLE_VMDQ_RSS_2Q;
+		else
+			mrqc = E1000_MRQC_ENABLE_RSS_4Q;
 
 		/* Fill out hash function seeds */
 		for (j = 0; j < 10; j++)
@@ -1966,27 +2198,23 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 		rxcsum |= E1000_RXCSUM_PCSD;
 		wr32(E1000_RXCSUM, rxcsum);
 	} else {
+		/* Enable multi-queue for sr-iov */
+		if (adapter->vfs_allocated_count)
+			wr32(E1000_MRQC, E1000_MRQC_ENABLE_VMDQ);
 		/* Enable Receive Checksum Offload for TCP and UDP */
 		rxcsum = rd32(E1000_RXCSUM);
-		if (adapter->rx_csum) {
-			rxcsum |= E1000_RXCSUM_TUOFL;
+		if (adapter->rx_csum)
+			rxcsum |= E1000_RXCSUM_TUOFL | E1000_RXCSUM_IPPCSE;
+		else
+			rxcsum &= ~(E1000_RXCSUM_TUOFL | E1000_RXCSUM_IPPCSE);
 
-			/* Enable IPv4 payload checksum for UDP fragments
-			 * Must be used in conjunction with packet-split. */
-			if (adapter->rx_ps_hdr_size)
-				rxcsum |= E1000_RXCSUM_IPPCSE;
-		} else {
-			rxcsum &= ~E1000_RXCSUM_TUOFL;
-			/* don't need to clear IPPCSE as it defaults to 0 */
-		}
 		wr32(E1000_RXCSUM, rxcsum);
 	}
 
-	if (adapter->vlgrp)
-		wr32(E1000_RLPML,
-				adapter->max_frame_size + VLAN_TAG_SIZE);
-	else
-		wr32(E1000_RLPML, adapter->max_frame_size);
+	/* Set the default pool for the PF's first queue */
+	igb_configure_vt_default_pool(adapter);
+
+	igb_rlpml_set(adapter);
 
 	/* Enable Receives */
 	wr32(E1000_RCTL, rctl);
@@ -2029,14 +2257,10 @@ static void igb_free_all_tx_resources(struct igb_adapter *adapter)
 static void igb_unmap_and_free_tx_resource(struct igb_adapter *adapter,
 					   struct igb_buffer *buffer_info)
 {
-	if (buffer_info->dma) {
-		pci_unmap_page(adapter->pdev,
-				buffer_info->dma,
-				buffer_info->length,
-				PCI_DMA_TODEVICE);
-		buffer_info->dma = 0;
-	}
+	buffer_info->dma = 0;
 	if (buffer_info->skb) {
+		skb_dma_unmap(&adapter->pdev->dev, buffer_info->skb,
+		              DMA_TO_DEVICE);
 		dev_kfree_skb_any(buffer_info->skb);
 		buffer_info->skb = NULL;
 	}
@@ -2105,11 +2329,6 @@ void igb_free_rx_resources(struct igb_ring *rx_ring)
 	vfree(rx_ring->buffer_info);
 	rx_ring->buffer_info = NULL;
 
-#ifdef CONFIG_IGB_LRO
-	vfree(rx_ring->lro_mgr.lro_arr);
-	rx_ring->lro_mgr.lro_arr = NULL;
-#endif 
-
 	pci_free_consistent(pdev, rx_ring->size, rx_ring->desc, rx_ring->dma);
 
 	rx_ring->desc = NULL;
@@ -2209,15 +2428,18 @@ static void igb_clean_all_rx_rings(struct igb_adapter *adapter)
 static int igb_set_mac(struct net_device *netdev, void *p)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
 	struct sockaddr *addr = p;
 
 	if (!is_valid_ether_addr(addr->sa_data))
 		return -EADDRNOTAVAIL;
 
 	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
-	memcpy(adapter->hw.mac.addr, addr->sa_data, netdev->addr_len);
+	memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len);
+
+	hw->mac.ops.rar_set(hw, hw->mac.addr, 0);
 
-	adapter->hw.mac.ops.rar_set(&adapter->hw, adapter->hw.mac.addr, 0);
+	igb_set_rah_pool(hw, adapter->vfs_allocated_count, 0);
 
 	return 0;
 }
@@ -2237,7 +2459,7 @@ static void igb_set_multi(struct net_device *netdev)
 	struct e1000_hw *hw = &adapter->hw;
 	struct e1000_mac_info *mac = &hw->mac;
 	struct dev_mc_list *mc_ptr;
-	u8  *mta_list;
+	u8  *mta_list = NULL;
 	u32 rctl;
 	int i;
 
@@ -2258,17 +2480,15 @@ static void igb_set_multi(struct net_device *netdev)
 	}
 	wr32(E1000_RCTL, rctl);
 
-	if (!netdev->mc_count) {
-		/* nothing to program, so clear mc list */
-		igb_update_mc_addr_list_82575(hw, NULL, 0, 1,
-					  mac->rar_entry_count);
-		return;
+	if (netdev->mc_count) {
+		mta_list = kzalloc(netdev->mc_count * 6, GFP_ATOMIC);
+		if (!mta_list) {
+			dev_err(&adapter->pdev->dev,
+			        "failed to allocate multicast filter list\n");
+			return;
+		}
 	}
 
-	mta_list = kzalloc(netdev->mc_count * 6, GFP_ATOMIC);
-	if (!mta_list)
-		return;
-
 	/* The shared function expects a packed array of only addresses. */
 	mc_ptr = netdev->mc_list;
 
@@ -2278,8 +2498,13 @@ static void igb_set_multi(struct net_device *netdev)
 		memcpy(mta_list + (i*ETH_ALEN), mc_ptr->dmi_addr, ETH_ALEN);
 		mc_ptr = mc_ptr->next;
 	}
-	igb_update_mc_addr_list_82575(hw, mta_list, i, 1,
-	                              mac->rar_entry_count);
+	igb_update_mc_addr_list(hw, mta_list, i,
+	                        adapter->vfs_allocated_count + 1,
+	                        mac->rar_entry_count);
+
+	igb_set_mc_list_pools(adapter, i, mac->rar_entry_count);
+	igb_restore_vf_multicasts(adapter);
+
 	kfree(mta_list);
 }
 
@@ -2292,6 +2517,46 @@ static void igb_update_phy_info(unsigned long data)
 }
 
 /**
+ * igb_has_link - check shared code for link and determine up/down
+ * @adapter: pointer to driver private info
+ **/
+static bool igb_has_link(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	bool link_active = false;
+	s32 ret_val = 0;
+
+	/* 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
+	 */
+	switch (hw->phy.media_type) {
+	case e1000_media_type_copper:
+		if (hw->mac.get_link_status) {
+			ret_val = hw->mac.ops.check_for_link(hw);
+			link_active = !hw->mac.get_link_status;
+		} else {
+			link_active = true;
+		}
+		break;
+	case e1000_media_type_fiber:
+		ret_val = hw->mac.ops.check_for_link(hw);
+		link_active = !!(rd32(E1000_STATUS) & E1000_STATUS_LU);
+		break;
+	case e1000_media_type_internal_serdes:
+		ret_val = hw->mac.ops.check_for_link(hw);
+		link_active = hw->mac.serdes_has_link;
+		break;
+	default:
+	case e1000_media_type_unknown:
+		break;
+	}
+
+	return link_active;
+}
+
+/**
  * igb_watchdog - Timer Call-back
  * @data: pointer to adapter cast into an unsigned long
  **/
@@ -2307,34 +2572,16 @@ static void igb_watchdog_task(struct work_struct *work)
 	struct igb_adapter *adapter = container_of(work,
 					struct igb_adapter, watchdog_task);
 	struct e1000_hw *hw = &adapter->hw;
-
 	struct net_device *netdev = adapter->netdev;
 	struct igb_ring *tx_ring = adapter->tx_ring;
-	struct e1000_mac_info *mac = &adapter->hw.mac;
 	u32 link;
 	u32 eics = 0;
-	s32 ret_val;
 	int i;
 
-	if ((netif_carrier_ok(netdev)) &&
-	    (rd32(E1000_STATUS) & E1000_STATUS_LU))
+	link = igb_has_link(adapter);
+	if ((netif_carrier_ok(netdev)) && link)
 		goto link_up;
 
-	ret_val = hw->mac.ops.check_for_link(&adapter->hw);
-	if ((ret_val == E1000_ERR_PHY) &&
-	    (hw->phy.type == e1000_phy_igp_3) &&
-	    (rd32(E1000_CTRL) &
-	     E1000_PHY_CTRL_GBE_DISABLE))
-		dev_info(&adapter->pdev->dev,
-			 "Gigabit has been disabled, downgrading speed\n");
-
-	if ((hw->phy.media_type == e1000_media_type_internal_serdes) &&
-	    !(rd32(E1000_TXCW) & E1000_TXCW_ANE))
-		link = mac->serdes_has_link;
-	else
-		link = rd32(E1000_STATUS) &
-				      E1000_STATUS_LU;
-
 	if (link) {
 		if (!netif_carrier_ok(netdev)) {
 			u32 ctrl;
@@ -2373,6 +2620,9 @@ static void igb_watchdog_task(struct work_struct *work)
 			netif_carrier_on(netdev);
 			netif_tx_wake_all_queues(netdev);
 
+			igb_ping_all_vfs(adapter);
+
+			/* link state has changed, schedule phy info update */
 			if (!test_bit(__IGB_DOWN, &adapter->state))
 				mod_timer(&adapter->phy_info_timer,
 					  round_jiffies(jiffies + 2 * HZ));
@@ -2386,6 +2636,10 @@ static void igb_watchdog_task(struct work_struct *work)
 			       netdev->name);
 			netif_carrier_off(netdev);
 			netif_tx_stop_all_queues(netdev);
+
+			igb_ping_all_vfs(adapter);
+
+			/* link state has changed, schedule phy info update */
 			if (!test_bit(__IGB_DOWN, &adapter->state))
 				mod_timer(&adapter->phy_info_timer,
 					  round_jiffies(jiffies + 2 * HZ));
@@ -2395,9 +2649,9 @@ static void igb_watchdog_task(struct work_struct *work)
 link_up:
 	igb_update_stats(adapter);
 
-	mac->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
+	hw->mac.tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
 	adapter->tpt_old = adapter->stats.tpt;
-	mac->collision_delta = adapter->stats.colc - adapter->colc_old;
+	hw->mac.collision_delta = adapter->stats.colc - adapter->colc_old;
 	adapter->colc_old = adapter->stats.colc;
 
 	adapter->gorc = adapter->stats.gorc - adapter->gorc_old;
@@ -2408,7 +2662,7 @@ link_up:
 	igb_update_adaptive(&adapter->hw);
 
 	if (!netif_carrier_ok(netdev)) {
-		if (IGB_DESC_UNUSED(tx_ring) + 1 < tx_ring->count) {
+		if (igb_desc_unused(tx_ring) + 1 < tx_ring->count) {
 			/* We've lost link, so the controller stops DMA,
 			 * but we've got queued Tx work that's never going
 			 * to get done, so reset controller to flush Tx.
@@ -2554,7 +2808,7 @@ static unsigned int igb_update_itr(struct igb_adapter *adapter, u16 itr_setting,
 		if (bytes > 25000) {
 			if (packets > 35)
 				retval = low_latency;
-		} else if (bytes < 6000) {
+		} else if (bytes < 1500) {
 			retval = low_latency;
 		}
 		break;
@@ -2586,15 +2840,13 @@ static void igb_set_itr(struct igb_adapter *adapter)
 					    adapter->tx_itr,
 					    adapter->tx_ring->total_packets,
 					    adapter->tx_ring->total_bytes);
-
 		current_itr = max(adapter->rx_itr, adapter->tx_itr);
 	} else {
 		current_itr = adapter->rx_itr;
 	}
 
 	/* conservative mode (itr 3) eliminates the lowest_latency setting */
-	if (adapter->itr_setting == 3 &&
-	    current_itr == lowest_latency)
+	if (adapter->itr_setting == 3 && current_itr == lowest_latency)
 		current_itr = low_latency;
 
 	switch (current_itr) {
@@ -2646,6 +2898,7 @@ set_itr_now:
 #define IGB_TX_FLAGS_VLAN		0x00000002
 #define IGB_TX_FLAGS_TSO		0x00000004
 #define IGB_TX_FLAGS_IPV4		0x00000008
+#define IGB_TX_FLAGS_TSTAMP             0x00000010
 #define IGB_TX_FLAGS_VLAN_MASK	0xffff0000
 #define IGB_TX_FLAGS_VLAN_SHIFT	16
 
@@ -2711,7 +2964,7 @@ static inline int igb_tso_adv(struct igb_adapter *adapter,
 	mss_l4len_idx = (skb_shinfo(skb)->gso_size << E1000_ADVTXD_MSS_SHIFT);
 	mss_l4len_idx |= (l4len << E1000_ADVTXD_L4LEN_SHIFT);
 
-	/* Context index must be unique per ring. */
+	/* For 82575, context index must be unique per ring. */
 	if (adapter->flags & IGB_FLAG_NEED_CTX_IDX)
 		mss_l4len_idx |= tx_ring->queue_index << 4;
 
@@ -2756,13 +3009,24 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter,
 		tu_cmd |= (E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT);
 
 		if (skb->ip_summed == CHECKSUM_PARTIAL) {
-			switch (skb->protocol) {
-			case __constant_htons(ETH_P_IP):
+			__be16 protocol;
+
+			if (skb->protocol == cpu_to_be16(ETH_P_8021Q)) {
+				const struct vlan_ethhdr *vhdr =
+				          (const struct vlan_ethhdr*)skb->data;
+
+				protocol = vhdr->h_vlan_encapsulated_proto;
+			} else {
+				protocol = skb->protocol;
+			}
+
+			switch (protocol) {
+			case cpu_to_be16(ETH_P_IP):
 				tu_cmd |= E1000_ADVTXD_TUCMD_IPV4;
 				if (ip_hdr(skb)->protocol == IPPROTO_TCP)
 					tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
 				break;
-			case __constant_htons(ETH_P_IPV6):
+			case cpu_to_be16(ETH_P_IPV6):
 				/* XXX what about other V6 headers?? */
 				if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
 					tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
@@ -2781,6 +3045,8 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter,
 		if (adapter->flags & IGB_FLAG_NEED_CTX_IDX)
 			context_desc->mss_l4len_idx =
 				cpu_to_le32(tx_ring->queue_index << 4);
+		else
+			context_desc->mss_l4len_idx = 0;
 
 		buffer_info->time_stamp = jiffies;
 		buffer_info->next_to_watch = i;
@@ -2793,8 +3059,6 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter,
 
 		return true;
 	}
-
-
 	return false;
 }
 
@@ -2809,25 +3073,33 @@ static inline int igb_tx_map_adv(struct igb_adapter *adapter,
 	unsigned int len = skb_headlen(skb);
 	unsigned int count = 0, i;
 	unsigned int f;
+	dma_addr_t *map;
 
 	i = tx_ring->next_to_use;
 
+	if (skb_dma_map(&adapter->pdev->dev, skb, DMA_TO_DEVICE)) {
+		dev_err(&adapter->pdev->dev, "TX DMA map failed\n");
+		return 0;
+	}
+
+	map = skb_shinfo(skb)->dma_maps;
+
 	buffer_info = &tx_ring->buffer_info[i];
 	BUG_ON(len >= IGB_MAX_DATA_PER_TXD);
 	buffer_info->length = len;
 	/* set time_stamp *before* dma to help avoid a possible race */
 	buffer_info->time_stamp = jiffies;
 	buffer_info->next_to_watch = i;
-	buffer_info->dma = pci_map_single(adapter->pdev, skb->data, len,
-					  PCI_DMA_TODEVICE);
+	buffer_info->dma = map[count];
 	count++;
-	i++;
-	if (i == tx_ring->count)
-		i = 0;
 
 	for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) {
 		struct skb_frag_struct *frag;
 
+		i++;
+		if (i == tx_ring->count)
+			i = 0;
+
 		frag = &skb_shinfo(skb)->frags[f];
 		len = frag->size;
 
@@ -2836,19 +3108,10 @@ static inline int igb_tx_map_adv(struct igb_adapter *adapter,
 		buffer_info->length = len;
 		buffer_info->time_stamp = jiffies;
 		buffer_info->next_to_watch = i;
-		buffer_info->dma = pci_map_page(adapter->pdev,
-						frag->page,
-						frag->page_offset,
-						len,
-						PCI_DMA_TODEVICE);
-
+		buffer_info->dma = map[count];
 		count++;
-		i++;
-		if (i == tx_ring->count)
-			i = 0;
 	}
 
-	i = ((i == 0) ? tx_ring->count - 1 : i - 1);
 	tx_ring->buffer_info[i].skb = skb;
 	tx_ring->buffer_info[first].next_to_watch = i;
 
@@ -2871,6 +3134,9 @@ static inline void igb_tx_queue_adv(struct igb_adapter *adapter,
 	if (tx_flags & IGB_TX_FLAGS_VLAN)
 		cmd_type_len |= E1000_ADVTXD_DCMD_VLE;
 
+	if (tx_flags & IGB_TX_FLAGS_TSTAMP)
+		cmd_type_len |= E1000_ADVTXD_MAC_TSTAMP;
+
 	if (tx_flags & IGB_TX_FLAGS_TSO) {
 		cmd_type_len |= E1000_ADVTXD_DCMD_TSE;
 
@@ -2933,7 +3199,7 @@ static int __igb_maybe_stop_tx(struct net_device *netdev,
 
 	/* We need to check again in a case another CPU has just
 	 * made room available. */
-	if (IGB_DESC_UNUSED(tx_ring) < size)
+	if (igb_desc_unused(tx_ring) < size)
 		return -EBUSY;
 
 	/* A reprieve! */
@@ -2945,13 +3211,11 @@ static int __igb_maybe_stop_tx(struct net_device *netdev,
 static int igb_maybe_stop_tx(struct net_device *netdev,
 			     struct igb_ring *tx_ring, int size)
 {
-	if (IGB_DESC_UNUSED(tx_ring) >= size)
+	if (igb_desc_unused(tx_ring) >= size)
 		return 0;
 	return __igb_maybe_stop_tx(netdev, tx_ring, size);
 }
 
-#define TXD_USE_COUNT(S) (((S) >> (IGB_MAX_TXD_PWR)) + 1)
-
 static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 				   struct net_device *netdev,
 				   struct igb_ring *tx_ring)
@@ -2959,11 +3223,10 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 	struct igb_adapter *adapter = netdev_priv(netdev);
 	unsigned int first;
 	unsigned int tx_flags = 0;
-	unsigned int len;
 	u8 hdr_len = 0;
+	int count = 0;
 	int tso = 0;
-
-	len = skb_headlen(skb);
+	union skb_shared_tx *shtx;
 
 	if (test_bit(__IGB_DOWN, &adapter->state)) {
 		dev_kfree_skb_any(skb);
@@ -2984,7 +3247,21 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 		/* this is a hard error */
 		return NETDEV_TX_BUSY;
 	}
-	skb_orphan(skb);
+
+	/*
+	 * TODO: check that there currently is no other packet with
+	 * time stamping in the queue
+	 *
+	 * When doing time stamping, keep the connection to the socket
+	 * a while longer: it is still needed by skb_hwtstamp_tx(),
+	 * called either in igb_tx_hwtstamp() or by our caller when
+	 * doing software time stamping.
+	 */
+	shtx = skb_tx(skb);
+	if (unlikely(shtx->hardware)) {
+		shtx->in_progress = 1;
+		tx_flags |= IGB_TX_FLAGS_TSTAMP;
+	}
 
 	if (adapter->vlgrp && vlan_tx_tag_present(skb)) {
 		tx_flags |= IGB_TX_FLAGS_VLAN;
@@ -2995,7 +3272,6 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 		tx_flags |= IGB_TX_FLAGS_IPV4;
 
 	first = tx_ring->next_to_use;
-
 	tso = skb_is_gso(skb) ? igb_tso_adv(adapter, tx_ring, skb, tx_flags,
 					      &hdr_len) : 0;
 
@@ -3006,18 +3282,27 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb,
 
 	if (tso)
 		tx_flags |= IGB_TX_FLAGS_TSO;
-	else if (igb_tx_csum_adv(adapter, tx_ring, skb, tx_flags))
-			if (skb->ip_summed == CHECKSUM_PARTIAL)
-				tx_flags |= IGB_TX_FLAGS_CSUM;
+	else if (igb_tx_csum_adv(adapter, tx_ring, skb, tx_flags) &&
+	         (skb->ip_summed == CHECKSUM_PARTIAL))
+		tx_flags |= IGB_TX_FLAGS_CSUM;
 
-	igb_tx_queue_adv(adapter, tx_ring, tx_flags,
-			 igb_tx_map_adv(adapter, tx_ring, skb, first),
-			 skb->len, hdr_len);
-
-	netdev->trans_start = jiffies;
-
-	/* Make sure there is space in the ring for the next send. */
-	igb_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 4);
+	/*
+	 * count reflects descriptors mapped, if 0 then mapping error
+	 * has occured and we need to rewind the descriptor queue
+	 */
+	count = igb_tx_map_adv(adapter, tx_ring, skb, first);
+
+	if (count) {
+		igb_tx_queue_adv(adapter, tx_ring, tx_flags, count,
+			         skb->len, hdr_len);
+		netdev->trans_start = jiffies;
+		/* Make sure there is space in the ring for the next send. */
+		igb_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 4);
+	} else {
+		dev_kfree_skb_any(skb);
+		tx_ring->buffer_info[first].time_stamp = 0;
+		tx_ring->next_to_use = first;
+	}
 
 	return NETDEV_TX_OK;
 }
@@ -3028,7 +3313,7 @@ static int igb_xmit_frame_adv(struct sk_buff *skb, struct net_device *netdev)
 	struct igb_ring *tx_ring;
 
 	int r_idx = 0;
-	r_idx = skb->queue_mapping & (IGB_MAX_TX_QUEUES - 1);
+	r_idx = skb->queue_mapping & (IGB_ABS_MAX_TX_QUEUES - 1);
 	tx_ring = adapter->multi_tx_table[r_idx];
 
 	/* This goes back to the question of how to logically map a tx queue
@@ -3050,8 +3335,8 @@ static void igb_tx_timeout(struct net_device *netdev)
 	/* Do the reset outside of interrupt context */
 	adapter->tx_timeout_count++;
 	schedule_work(&adapter->reset_task);
-	wr32(E1000_EICS, adapter->eims_enable_mask &
-		~(E1000_EIMS_TCP_TIMER | E1000_EIMS_OTHER));
+	wr32(E1000_EICS,
+	     (adapter->eims_enable_mask & ~adapter->eims_other));
 }
 
 static void igb_reset_task(struct work_struct *work)
@@ -3069,8 +3354,7 @@ static void igb_reset_task(struct work_struct *work)
  * Returns the address of the device statistics structure.
  * The statistics are actually updated from the timer callback.
  **/
-static struct net_device_stats *
-igb_get_stats(struct net_device *netdev)
+static struct net_device_stats *igb_get_stats(struct net_device *netdev)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 
@@ -3096,7 +3380,6 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
 		return -EINVAL;
 	}
 
-#define MAX_STD_JUMBO_FRAME_SIZE 9234
 	if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
 		dev_err(&adapter->pdev->dev, "MTU > 9216 not supported.\n");
 		return -EINVAL;
@@ -3104,6 +3387,7 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
 
 	while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
 		msleep(1);
+
 	/* igb_down has a dependency on max_frame_size */
 	adapter->max_frame_size = max_frame;
 	if (netif_running(netdev))
@@ -3129,6 +3413,12 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
 #else
 		adapter->rx_buffer_len = PAGE_SIZE / 2;
 #endif
+
+	/* if sr-iov is enabled we need to force buffer size to 1K or larger */
+	if (adapter->vfs_allocated_count &&
+	    (adapter->rx_buffer_len < IGB_RXBUFFER_1024))
+		adapter->rx_buffer_len = IGB_RXBUFFER_1024;
+
 	/* adjust allocation if LPE protects us, and we aren't using SBP */
 	if ((max_frame == ETH_FRAME_LEN + ETH_FCS_LEN) ||
 	     (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE))
@@ -3273,8 +3563,7 @@ void igb_update_stats(struct igb_adapter *adapter)
 	/* Phy Stats */
 	if (hw->phy.media_type == e1000_media_type_copper) {
 		if ((adapter->link_speed == SPEED_1000) &&
-		   (!igb_read_phy_reg(hw, PHY_1000T_STATUS,
-					      &phy_tmp))) {
+		   (!igb_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) {
 			phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
 			adapter->phy_stats.idle_errors += phy_tmp;
 		}
@@ -3286,7 +3575,6 @@ void igb_update_stats(struct igb_adapter *adapter)
 	adapter->stats.mgpdc += rd32(E1000_MGTPDC);
 }
 
-
 static irqreturn_t igb_msix_other(int irq, void *data)
 {
 	struct net_device *netdev = data;
@@ -3295,15 +3583,24 @@ static irqreturn_t igb_msix_other(int irq, void *data)
 	u32 icr = rd32(E1000_ICR);
 
 	/* reading ICR causes bit 31 of EICR to be cleared */
-	if (!(icr & E1000_ICR_LSC))
-		goto no_link_interrupt;
-	hw->mac.get_link_status = 1;
-	/* guard against interrupt when we're going down */
-	if (!test_bit(__IGB_DOWN, &adapter->state))
-		mod_timer(&adapter->watchdog_timer, jiffies + 1);
-	
-no_link_interrupt:
-	wr32(E1000_IMS, E1000_IMS_LSC);
+
+	if(icr & E1000_ICR_DOUTSYNC) {
+		/* HW is reporting DMA is out of sync */
+		adapter->stats.doosync++;
+	}
+
+	/* Check for a mailbox event */
+	if (icr & E1000_ICR_VMMB)
+		igb_msg_task(adapter);
+
+	if (icr & E1000_ICR_LSC) {
+		hw->mac.get_link_status = 1;
+		/* guard against interrupt when we're going down */
+		if (!test_bit(__IGB_DOWN, &adapter->state))
+			mod_timer(&adapter->watchdog_timer, jiffies + 1);
+	}
+
+	wr32(E1000_IMS, E1000_IMS_LSC | E1000_IMS_DOUTSYNC | E1000_IMS_VMMB);
 	wr32(E1000_EIMS, adapter->eims_other);
 
 	return IRQ_HANDLED;
@@ -3319,6 +3616,7 @@ static irqreturn_t igb_msix_tx(int irq, void *data)
 	if (adapter->flags & IGB_FLAG_DCA_ENABLED)
 		igb_update_tx_dca(tx_ring);
 #endif
+
 	tx_ring->total_bytes = 0;
 	tx_ring->total_packets = 0;
 
@@ -3339,13 +3637,11 @@ static void igb_write_itr(struct igb_ring *ring)
 	if ((ring->adapter->itr_setting & 3) && ring->set_itr) {
 		switch (hw->mac.type) {
 		case e1000_82576:
-			wr32(ring->itr_register,
-			     ring->itr_val |
+			wr32(ring->itr_register, ring->itr_val |
 			     0x80000000);
 			break;
 		default:
-			wr32(ring->itr_register,
-			     ring->itr_val |
+			wr32(ring->itr_register, ring->itr_val |
 			     (ring->itr_val << 16));
 			break;
 		}
@@ -3363,8 +3659,8 @@ static irqreturn_t igb_msix_rx(int irq, void *data)
 
 	igb_write_itr(rx_ring);
 
-	if (netif_rx_schedule_prep(&rx_ring->napi))
-		__netif_rx_schedule(&rx_ring->napi);
+	if (napi_schedule_prep(&rx_ring->napi))
+		__napi_schedule(&rx_ring->napi);
 
 #ifdef CONFIG_IGB_DCA
 	if (rx_ring->adapter->flags & IGB_FLAG_DCA_ENABLED)
@@ -3386,11 +3682,11 @@ static void igb_update_rx_dca(struct igb_ring *rx_ring)
 		dca_rxctrl = rd32(E1000_DCA_RXCTRL(q));
 		if (hw->mac.type == e1000_82576) {
 			dca_rxctrl &= ~E1000_DCA_RXCTRL_CPUID_MASK_82576;
-			dca_rxctrl |= dca_get_tag(cpu) <<
+			dca_rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu) <<
 			              E1000_DCA_RXCTRL_CPUID_SHIFT;
 		} else {
 			dca_rxctrl &= ~E1000_DCA_RXCTRL_CPUID_MASK;
-			dca_rxctrl |= dca_get_tag(cpu);
+			dca_rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu);
 		}
 		dca_rxctrl |= E1000_DCA_RXCTRL_DESC_DCA_EN;
 		dca_rxctrl |= E1000_DCA_RXCTRL_HEAD_DCA_EN;
@@ -3413,11 +3709,11 @@ static void igb_update_tx_dca(struct igb_ring *tx_ring)
 		dca_txctrl = rd32(E1000_DCA_TXCTRL(q));
 		if (hw->mac.type == e1000_82576) {
 			dca_txctrl &= ~E1000_DCA_TXCTRL_CPUID_MASK_82576;
-			dca_txctrl |= dca_get_tag(cpu) <<
+			dca_txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu) <<
 			              E1000_DCA_TXCTRL_CPUID_SHIFT;
 		} else {
 			dca_txctrl &= ~E1000_DCA_TXCTRL_CPUID_MASK;
-			dca_txctrl |= dca_get_tag(cpu);
+			dca_txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu);
 		}
 		dca_txctrl |= E1000_DCA_TXCTRL_DESC_DCA_EN;
 		wr32(E1000_DCA_TXCTRL(q), dca_txctrl);
@@ -3457,7 +3753,7 @@ static int __igb_notify_dca(struct device *dev, void *data)
 			break;
 		/* Always use CB2 mode, difference is masked
 		 * in the CB driver. */
-		wr32(E1000_DCA_CTRL, 2);
+		wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_CB2);
 		if (dca_add_requester(dev) == 0) {
 			adapter->flags |= IGB_FLAG_DCA_ENABLED;
 			dev_info(&adapter->pdev->dev, "DCA enabled\n");
@@ -3472,7 +3768,7 @@ static int __igb_notify_dca(struct device *dev, void *data)
 			dca_remove_requester(dev);
 			dev_info(&adapter->pdev->dev, "DCA disabled\n");
 			adapter->flags &= ~IGB_FLAG_DCA_ENABLED;
-			wr32(E1000_DCA_CTRL, 1);
+			wr32(E1000_DCA_CTRL, E1000_DCA_CTRL_DCA_MODE_DISABLE);
 		}
 		break;
 	}
@@ -3492,6 +3788,322 @@ static int igb_notify_dca(struct notifier_block *nb, unsigned long event,
 }
 #endif /* CONFIG_IGB_DCA */
 
+static void igb_ping_all_vfs(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 ping;
+	int i;
+
+	for (i = 0 ; i < adapter->vfs_allocated_count; i++) {
+		ping = E1000_PF_CONTROL_MSG;
+		if (adapter->vf_data[i].clear_to_send)
+			ping |= E1000_VT_MSGTYPE_CTS;
+		igb_write_mbx(hw, &ping, 1, i);
+	}
+}
+
+static int igb_set_vf_multicasts(struct igb_adapter *adapter,
+				  u32 *msgbuf, u32 vf)
+{
+	int n = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT;
+	u16 *hash_list = (u16 *)&msgbuf[1];
+	struct vf_data_storage *vf_data = &adapter->vf_data[vf];
+	int i;
+
+	/* only up to 30 hash values supported */
+	if (n > 30)
+		n = 30;
+
+	/* salt away the number of multi cast addresses assigned
+	 * to this VF for later use to restore when the PF multi cast
+	 * list changes
+	 */
+	vf_data->num_vf_mc_hashes = n;
+
+	/* VFs are limited to using the MTA hash table for their multicast
+	 * addresses */
+	for (i = 0; i < n; i++)
+		vf_data->vf_mc_hashes[i] = hash_list[i];;
+
+	/* Flush and reset the mta with the new values */
+	igb_set_multi(adapter->netdev);
+
+	return 0;
+}
+
+static void igb_restore_vf_multicasts(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	struct vf_data_storage *vf_data;
+	int i, j;
+
+	for (i = 0; i < adapter->vfs_allocated_count; i++) {
+		vf_data = &adapter->vf_data[i];
+		for (j = 0; j < vf_data->num_vf_mc_hashes; j++)
+			igb_mta_set(hw, vf_data->vf_mc_hashes[j]);
+	}
+}
+
+static void igb_clear_vf_vfta(struct igb_adapter *adapter, u32 vf)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 pool_mask, reg, vid;
+	int i;
+
+	pool_mask = 1 << (E1000_VLVF_POOLSEL_SHIFT + vf);
+
+	/* Find the vlan filter for this id */
+	for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) {
+		reg = rd32(E1000_VLVF(i));
+
+		/* remove the vf from the pool */
+		reg &= ~pool_mask;
+
+		/* if pool is empty then remove entry from vfta */
+		if (!(reg & E1000_VLVF_POOLSEL_MASK) &&
+		    (reg & E1000_VLVF_VLANID_ENABLE)) {
+			reg = 0;
+			vid = reg & E1000_VLVF_VLANID_MASK;
+			igb_vfta_set(hw, vid, false);
+		}
+
+		wr32(E1000_VLVF(i), reg);
+	}
+}
+
+static s32 igb_vlvf_set(struct igb_adapter *adapter, u32 vid, bool add, u32 vf)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 reg, i;
+
+	/* It is an error to call this function when VFs are not enabled */
+	if (!adapter->vfs_allocated_count)
+		return -1;
+
+	/* Find the vlan filter for this id */
+	for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) {
+		reg = rd32(E1000_VLVF(i));
+		if ((reg & E1000_VLVF_VLANID_ENABLE) &&
+		    vid == (reg & E1000_VLVF_VLANID_MASK))
+			break;
+	}
+
+	if (add) {
+		if (i == E1000_VLVF_ARRAY_SIZE) {
+			/* Did not find a matching VLAN ID entry that was
+			 * enabled.  Search for a free filter entry, i.e.
+			 * one without the enable bit set
+			 */
+			for (i = 0; i < E1000_VLVF_ARRAY_SIZE; i++) {
+				reg = rd32(E1000_VLVF(i));
+				if (!(reg & E1000_VLVF_VLANID_ENABLE))
+					break;
+			}
+		}
+		if (i < E1000_VLVF_ARRAY_SIZE) {
+			/* Found an enabled/available entry */
+			reg |= 1 << (E1000_VLVF_POOLSEL_SHIFT + vf);
+
+			/* if !enabled we need to set this up in vfta */
+			if (!(reg & E1000_VLVF_VLANID_ENABLE)) {
+				/* add VID to filter table, if bit already set
+				 * PF must have added it outside of table */
+				if (igb_vfta_set(hw, vid, true))
+					reg |= 1 << (E1000_VLVF_POOLSEL_SHIFT +
+						adapter->vfs_allocated_count);
+				reg |= E1000_VLVF_VLANID_ENABLE;
+			}
+			reg &= ~E1000_VLVF_VLANID_MASK;
+			reg |= vid;
+
+			wr32(E1000_VLVF(i), reg);
+			return 0;
+		}
+	} else {
+		if (i < E1000_VLVF_ARRAY_SIZE) {
+			/* remove vf from the pool */
+			reg &= ~(1 << (E1000_VLVF_POOLSEL_SHIFT + vf));
+			/* if pool is empty then remove entry from vfta */
+			if (!(reg & E1000_VLVF_POOLSEL_MASK)) {
+				reg = 0;
+				igb_vfta_set(hw, vid, false);
+			}
+			wr32(E1000_VLVF(i), reg);
+			return 0;
+		}
+	}
+	return -1;
+}
+
+static int igb_set_vf_vlan(struct igb_adapter *adapter, u32 *msgbuf, u32 vf)
+{
+	int add = (msgbuf[0] & E1000_VT_MSGINFO_MASK) >> E1000_VT_MSGINFO_SHIFT;
+	int vid = (msgbuf[1] & E1000_VLVF_VLANID_MASK);
+
+	return igb_vlvf_set(adapter, vid, add, vf);
+}
+
+static inline void igb_vf_reset_event(struct igb_adapter *adapter, u32 vf)
+{
+	struct e1000_hw *hw = &adapter->hw;
+
+	/* disable mailbox functionality for vf */
+	adapter->vf_data[vf].clear_to_send = false;
+
+	/* reset offloads to defaults */
+	igb_set_vmolr(hw, vf);
+
+	/* reset vlans for device */
+	igb_clear_vf_vfta(adapter, vf);
+
+	/* reset multicast table array for vf */
+	adapter->vf_data[vf].num_vf_mc_hashes = 0;
+
+	/* Flush and reset the mta with the new values */
+	igb_set_multi(adapter->netdev);
+}
+
+static inline void igb_vf_reset_msg(struct igb_adapter *adapter, u32 vf)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	unsigned char *vf_mac = adapter->vf_data[vf].vf_mac_addresses;
+	u32 reg, msgbuf[3];
+	u8 *addr = (u8 *)(&msgbuf[1]);
+
+	/* process all the same items cleared in a function level reset */
+	igb_vf_reset_event(adapter, vf);
+
+	/* set vf mac address */
+	igb_rar_set(hw, vf_mac, vf + 1);
+	igb_set_rah_pool(hw, vf, vf + 1);
+
+	/* enable transmit and receive for vf */
+	reg = rd32(E1000_VFTE);
+	wr32(E1000_VFTE, reg | (1 << vf));
+	reg = rd32(E1000_VFRE);
+	wr32(E1000_VFRE, reg | (1 << vf));
+
+	/* enable mailbox functionality for vf */
+	adapter->vf_data[vf].clear_to_send = true;
+
+	/* reply to reset with ack and vf mac address */
+	msgbuf[0] = E1000_VF_RESET | E1000_VT_MSGTYPE_ACK;
+	memcpy(addr, vf_mac, 6);
+	igb_write_mbx(hw, msgbuf, 3, vf);
+}
+
+static int igb_set_vf_mac_addr(struct igb_adapter *adapter, u32 *msg, int vf)
+{
+		unsigned char *addr = (char *)&msg[1];
+		int err = -1;
+
+		if (is_valid_ether_addr(addr))
+			err = igb_set_vf_mac(adapter, vf, addr);
+
+		return err;
+
+}
+
+static void igb_rcv_ack_from_vf(struct igb_adapter *adapter, u32 vf)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 msg = E1000_VT_MSGTYPE_NACK;
+
+	/* if device isn't clear to send it shouldn't be reading either */
+	if (!adapter->vf_data[vf].clear_to_send)
+		igb_write_mbx(hw, &msg, 1, vf);
+}
+
+
+static void igb_msg_task(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 vf;
+
+	for (vf = 0; vf < adapter->vfs_allocated_count; vf++) {
+		/* process any reset requests */
+		if (!igb_check_for_rst(hw, vf)) {
+			adapter->vf_data[vf].clear_to_send = false;
+			igb_vf_reset_event(adapter, vf);
+		}
+
+		/* process any messages pending */
+		if (!igb_check_for_msg(hw, vf))
+			igb_rcv_msg_from_vf(adapter, vf);
+
+		/* process any acks */
+		if (!igb_check_for_ack(hw, vf))
+			igb_rcv_ack_from_vf(adapter, vf);
+
+	}
+}
+
+static int igb_rcv_msg_from_vf(struct igb_adapter *adapter, u32 vf)
+{
+	u32 mbx_size = E1000_VFMAILBOX_SIZE;
+	u32 msgbuf[mbx_size];
+	struct e1000_hw *hw = &adapter->hw;
+	s32 retval;
+
+	retval = igb_read_mbx(hw, msgbuf, mbx_size, vf);
+
+	if (retval)
+		dev_err(&adapter->pdev->dev,
+		        "Error receiving message from VF\n");
+
+	/* this is a message we already processed, do nothing */
+	if (msgbuf[0] & (E1000_VT_MSGTYPE_ACK | E1000_VT_MSGTYPE_NACK))
+		return retval;
+
+	/*
+	 * until the vf completes a reset it should not be
+	 * allowed to start any configuration.
+	 */
+
+	if (msgbuf[0] == E1000_VF_RESET) {
+		igb_vf_reset_msg(adapter, vf);
+
+		return retval;
+	}
+
+	if (!adapter->vf_data[vf].clear_to_send) {
+		msgbuf[0] |= E1000_VT_MSGTYPE_NACK;
+		igb_write_mbx(hw, msgbuf, 1, vf);
+		return retval;
+	}
+
+	switch ((msgbuf[0] & 0xFFFF)) {
+	case E1000_VF_SET_MAC_ADDR:
+		retval = igb_set_vf_mac_addr(adapter, msgbuf, vf);
+		break;
+	case E1000_VF_SET_MULTICAST:
+		retval = igb_set_vf_multicasts(adapter, msgbuf, vf);
+		break;
+	case E1000_VF_SET_LPE:
+		retval = igb_set_vf_rlpml(adapter, msgbuf[1], vf);
+		break;
+	case E1000_VF_SET_VLAN:
+		retval = igb_set_vf_vlan(adapter, msgbuf, vf);
+		break;
+	default:
+		dev_err(&adapter->pdev->dev, "Unhandled Msg %08x\n", msgbuf[0]);
+		retval = -1;
+		break;
+	}
+
+	/* notify the VF of the results of what it sent us */
+	if (retval)
+		msgbuf[0] |= E1000_VT_MSGTYPE_NACK;
+	else
+		msgbuf[0] |= E1000_VT_MSGTYPE_ACK;
+
+	msgbuf[0] |= E1000_VT_MSGTYPE_CTS;
+
+	igb_write_mbx(hw, msgbuf, 1, vf);
+
+	return retval;
+}
+
 /**
  * igb_intr_msi - Interrupt Handler
  * @irq: interrupt number
@@ -3507,19 +4119,24 @@ static irqreturn_t igb_intr_msi(int irq, void *data)
 
 	igb_write_itr(adapter->rx_ring);
 
+	if(icr & E1000_ICR_DOUTSYNC) {
+		/* HW is reporting DMA is out of sync */
+		adapter->stats.doosync++;
+	}
+
 	if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
 		hw->mac.get_link_status = 1;
 		if (!test_bit(__IGB_DOWN, &adapter->state))
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-	netif_rx_schedule(&adapter->rx_ring[0].napi);
+	napi_schedule(&adapter->rx_ring[0].napi);
 
 	return IRQ_HANDLED;
 }
 
 /**
- * igb_intr - Interrupt Handler
+ * igb_intr - Legacy Interrupt Handler
  * @irq: interrupt number
  * @data: pointer to a network interface device structure
  **/
@@ -3531,7 +4148,6 @@ static irqreturn_t igb_intr(int irq, void *data)
 	/* Interrupt Auto-Mask...upon reading ICR, interrupts are masked.  No
 	 * need for the IMC write */
 	u32 icr = rd32(E1000_ICR);
-	u32 eicr = 0;
 	if (!icr)
 		return IRQ_NONE;  /* Not our interrupt */
 
@@ -3542,7 +4158,10 @@ static irqreturn_t igb_intr(int irq, void *data)
 	if (!(icr & E1000_ICR_INT_ASSERTED))
 		return IRQ_NONE;
 
-	eicr = rd32(E1000_EICR);
+	if(icr & E1000_ICR_DOUTSYNC) {
+		/* HW is reporting DMA is out of sync */
+		adapter->stats.doosync++;
+	}
 
 	if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
 		hw->mac.get_link_status = 1;
@@ -3551,11 +4170,31 @@ static irqreturn_t igb_intr(int irq, void *data)
 			mod_timer(&adapter->watchdog_timer, jiffies + 1);
 	}
 
-	netif_rx_schedule(&adapter->rx_ring[0].napi);
+	napi_schedule(&adapter->rx_ring[0].napi);
 
 	return IRQ_HANDLED;
 }
 
+static inline void igb_rx_irq_enable(struct igb_ring *rx_ring)
+{
+	struct igb_adapter *adapter = rx_ring->adapter;
+	struct e1000_hw *hw = &adapter->hw;
+
+	if (adapter->itr_setting & 3) {
+		if (adapter->num_rx_queues == 1)
+			igb_set_itr(adapter);
+		else
+			igb_update_ring_itr(rx_ring);
+	}
+
+	if (!test_bit(__IGB_DOWN, &adapter->state)) {
+		if (adapter->msix_entries)
+			wr32(E1000_EIMS, rx_ring->eims_value);
+		else
+			igb_irq_enable(adapter);
+	}
+}
+
 /**
  * igb_poll - NAPI Rx polling callback
  * @napi: napi polling structure
@@ -3564,70 +4203,64 @@ static irqreturn_t igb_intr(int irq, void *data)
 static int igb_poll(struct napi_struct *napi, int budget)
 {
 	struct igb_ring *rx_ring = container_of(napi, struct igb_ring, napi);
-	struct igb_adapter *adapter = rx_ring->adapter;
-	struct net_device *netdev = adapter->netdev;
-	int tx_clean_complete, work_done = 0;
+	int work_done = 0;
 
-	/* this poll routine only supports one tx and one rx queue */
 #ifdef CONFIG_IGB_DCA
-	if (adapter->flags & IGB_FLAG_DCA_ENABLED)
-		igb_update_tx_dca(&adapter->tx_ring[0]);
+	if (rx_ring->adapter->flags & IGB_FLAG_DCA_ENABLED)
+		igb_update_rx_dca(rx_ring);
 #endif
-	tx_clean_complete = igb_clean_tx_irq(&adapter->tx_ring[0]);
+	igb_clean_rx_irq_adv(rx_ring, &work_done, budget);
 
+	if (rx_ring->buddy) {
 #ifdef CONFIG_IGB_DCA
-	if (adapter->flags & IGB_FLAG_DCA_ENABLED)
-		igb_update_rx_dca(&adapter->rx_ring[0]);
+		if (rx_ring->adapter->flags & IGB_FLAG_DCA_ENABLED)
+			igb_update_tx_dca(rx_ring->buddy);
 #endif
-	igb_clean_rx_irq_adv(&adapter->rx_ring[0], &work_done, budget);
+		if (!igb_clean_tx_irq(rx_ring->buddy))
+			work_done = budget;
+	}
 
-	/* If no Tx and not enough Rx work done, exit the polling mode */
-	if ((tx_clean_complete && (work_done < budget)) ||
-	    !netif_running(netdev)) {
-		if (adapter->itr_setting & 3)
-			igb_set_itr(adapter);
-		netif_rx_complete(napi);
-		if (!test_bit(__IGB_DOWN, &adapter->state))
-			igb_irq_enable(adapter);
-		return 0;
+	/* If not enough Rx work done, exit the polling mode */
+	if (work_done < budget) {
+		napi_complete(napi);
+		igb_rx_irq_enable(rx_ring);
 	}
 
-	return 1;
+	return work_done;
 }
 
-static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
+/**
+ * igb_hwtstamp - utility function which checks for TX time stamp
+ * @adapter: board private structure
+ * @skb: packet that was just sent
+ *
+ * If we were asked to do hardware stamping and such a time stamp is
+ * available, then it must have been for this skb here because we only
+ * allow only one such packet into the queue.
+ */
+static void igb_tx_hwtstamp(struct igb_adapter *adapter, struct sk_buff *skb)
 {
-	struct igb_ring *rx_ring = container_of(napi, struct igb_ring, napi);
-	struct igb_adapter *adapter = rx_ring->adapter;
+	union skb_shared_tx *shtx = skb_tx(skb);
 	struct e1000_hw *hw = &adapter->hw;
-	struct net_device *netdev = adapter->netdev;
-	int work_done = 0;
-
-#ifdef CONFIG_IGB_DCA
-	if (adapter->flags & IGB_FLAG_DCA_ENABLED)
-		igb_update_rx_dca(rx_ring);
-#endif
-	igb_clean_rx_irq_adv(rx_ring, &work_done, budget);
-
-
-	/* If not enough Rx work done, exit the polling mode */
-	if ((work_done == 0) || !netif_running(netdev)) {
-		netif_rx_complete(napi);
 
-		if (adapter->itr_setting & 3) {
-			if (adapter->num_rx_queues == 1)
-				igb_set_itr(adapter);
-			else
-				igb_update_ring_itr(rx_ring);
+	if (unlikely(shtx->hardware)) {
+		u32 valid = rd32(E1000_TSYNCTXCTL) & E1000_TSYNCTXCTL_VALID;
+		if (valid) {
+			u64 regval = rd32(E1000_TXSTMPL);
+			u64 ns;
+			struct skb_shared_hwtstamps shhwtstamps;
+
+			memset(&shhwtstamps, 0, sizeof(shhwtstamps));
+			regval |= (u64)rd32(E1000_TXSTMPH) << 32;
+			ns = timecounter_cyc2time(&adapter->clock,
+						  regval);
+			timecompare_update(&adapter->compare, ns);
+			shhwtstamps.hwtstamp = ns_to_ktime(ns);
+			shhwtstamps.syststamp =
+				timecompare_transform(&adapter->compare, ns);
+			skb_tstamp_tx(skb, &shhwtstamps);
 		}
-
-		if (!test_bit(__IGB_DOWN, &adapter->state))
-			wr32(E1000_EIMS, rx_ring->eims_value);
-
-		return 0;
 	}
-
-	return 1;
 }
 
 /**
@@ -3668,6 +4301,8 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
 					    skb->len;
 				total_packets += segs;
 				total_bytes += bytecount;
+
+				igb_tx_hwtstamp(adapter, skb);
 			}
 
 			igb_unmap_and_free_tx_resource(adapter, buffer_info);
@@ -3677,7 +4312,6 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
 			if (i == tx_ring->count)
 				i = 0;
 		}
-
 		eop = tx_ring->buffer_info[i].next_to_watch;
 		eop_desc = E1000_TX_DESC_ADV(*tx_ring, eop);
 	}
@@ -3686,7 +4320,7 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
 
 	if (unlikely(count &&
 		     netif_carrier_ok(netdev) &&
-		     IGB_DESC_UNUSED(tx_ring) >= IGB_TX_QUEUE_WAKE)) {
+		     igb_desc_unused(tx_ring) >= IGB_TX_QUEUE_WAKE)) {
 		/* Make sure that anybody stopping the queue after this
 		 * sees the new next_to_clean.
 		 */
@@ -3742,44 +4376,11 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
 	return (count < tx_ring->count);
 }
 
-#ifdef CONFIG_IGB_LRO
- /**
- * igb_get_skb_hdr - helper function for LRO header processing
- * @skb: pointer to sk_buff to be added to LRO packet
- * @iphdr: pointer to ip header structure
- * @tcph: pointer to tcp header structure
- * @hdr_flags: pointer to header flags
- * @priv: pointer to the receive descriptor for the current sk_buff
- **/
-static int igb_get_skb_hdr(struct sk_buff *skb, void **iphdr, void **tcph,
-                           u64 *hdr_flags, void *priv)
-{
-	union e1000_adv_rx_desc *rx_desc = priv;
-	u16 pkt_type = rx_desc->wb.lower.lo_dword.pkt_info &
-	               (E1000_RXDADV_PKTTYPE_IPV4 | E1000_RXDADV_PKTTYPE_TCP);
-
-	/* Verify that this is a valid IPv4 TCP packet */
-	if (pkt_type != (E1000_RXDADV_PKTTYPE_IPV4 |
-	                  E1000_RXDADV_PKTTYPE_TCP))
-		return -1;
-
-	/* Set network headers */
-	skb_reset_network_header(skb);
-	skb_set_transport_header(skb, ip_hdrlen(skb));
-	*iphdr = ip_hdr(skb);
-	*tcph = tcp_hdr(skb);
-	*hdr_flags = LRO_IPV4 | LRO_TCP;
-
-	return 0;
-
-}
-#endif /* CONFIG_IGB_LRO */
-
 /**
  * igb_receive_skb - helper function to handle rx indications
- * @ring: pointer to receive ring receving this packet 
+ * @ring: pointer to receive ring receving this packet
  * @status: descriptor status field as written by hardware
- * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
+ * @rx_desc: receive descriptor containing vlan and type information.
  * @skb: pointer to sk_buff to be indicated to stack
  **/
 static void igb_receive_skb(struct igb_ring *ring, u8 status,
@@ -3789,31 +4390,23 @@ static void igb_receive_skb(struct igb_ring *ring, u8 status,
 	struct igb_adapter * adapter = ring->adapter;
 	bool vlan_extracted = (adapter->vlgrp && (status & E1000_RXD_STAT_VP));
 
-#ifdef CONFIG_IGB_LRO
-	if (adapter->netdev->features & NETIF_F_LRO &&
-	    skb->ip_summed == CHECKSUM_UNNECESSARY) {
+	skb_record_rx_queue(skb, ring->queue_index);
+	if (skb->ip_summed == CHECKSUM_UNNECESSARY) {
 		if (vlan_extracted)
-			lro_vlan_hwaccel_receive_skb(&ring->lro_mgr, skb,
-			                   adapter->vlgrp,
-			                   le16_to_cpu(rx_desc->wb.upper.vlan),
-			                   rx_desc);
+			vlan_gro_receive(&ring->napi, adapter->vlgrp,
+			                 le16_to_cpu(rx_desc->wb.upper.vlan),
+			                 skb);
 		else
-			lro_receive_skb(&ring->lro_mgr,skb, rx_desc);
-		ring->lro_used = 1;
+			napi_gro_receive(&ring->napi, skb);
 	} else {
-#endif
 		if (vlan_extracted)
 			vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
 			                  le16_to_cpu(rx_desc->wb.upper.vlan));
 		else
-
 			netif_receive_skb(skb);
-#ifdef CONFIG_IGB_LRO
 	}
-#endif
 }
 
-
 static inline void igb_rx_checksum_adv(struct igb_adapter *adapter,
 				       u32 status_err, struct sk_buff *skb)
 {
@@ -3841,17 +4434,19 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 {
 	struct igb_adapter *adapter = rx_ring->adapter;
 	struct net_device *netdev = adapter->netdev;
+	struct e1000_hw *hw = &adapter->hw;
 	struct pci_dev *pdev = adapter->pdev;
 	union e1000_adv_rx_desc *rx_desc , *next_rxd;
 	struct igb_buffer *buffer_info , *next_buffer;
 	struct sk_buff *skb;
-	unsigned int i;
-	u32 length, hlen, staterr;
 	bool cleaned = false;
 	int cleaned_count = 0;
 	unsigned int total_bytes = 0, total_packets = 0;
+	unsigned int i;
+	u32 length, hlen, staterr;
 
 	i = rx_ring->next_to_clean;
+	buffer_info = &rx_ring->buffer_info[i];
 	rx_desc = E1000_RX_DESC_ADV(*rx_ring, i);
 	staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
 
@@ -3859,25 +4454,22 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 		if (*work_done >= budget)
 			break;
 		(*work_done)++;
-		buffer_info = &rx_ring->buffer_info[i];
 
-		/* HW will not DMA in data larger than the given buffer, even
-		 * if it parses the (NFS, of course) header to be larger.  In
-		 * that case, it fills the header buffer and spills the rest
-		 * into the page.
-		 */
-		hlen = (le16_to_cpu(rx_desc->wb.lower.lo_dword.hdr_info) &
-		  E1000_RXDADV_HDRBUFLEN_MASK) >> E1000_RXDADV_HDRBUFLEN_SHIFT;
-		if (hlen > adapter->rx_ps_hdr_size)
-			hlen = adapter->rx_ps_hdr_size;
+		skb = buffer_info->skb;
+		prefetch(skb->data - NET_IP_ALIGN);
+		buffer_info->skb = NULL;
+
+		i++;
+		if (i == rx_ring->count)
+			i = 0;
+		next_rxd = E1000_RX_DESC_ADV(*rx_ring, i);
+		prefetch(next_rxd);
+		next_buffer = &rx_ring->buffer_info[i];
 
 		length = le16_to_cpu(rx_desc->wb.upper.length);
 		cleaned = true;
 		cleaned_count++;
 
-		skb = buffer_info->skb;
-		prefetch(skb->data - NET_IP_ALIGN);
-		buffer_info->skb = NULL;
 		if (!adapter->rx_ps_hdr_size) {
 			pci_unmap_single(pdev, buffer_info->dma,
 					 adapter->rx_buffer_len +
@@ -3887,10 +4479,19 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 			goto send_up;
 		}
 
+		/* HW will not DMA in data larger than the given buffer, even
+		 * if it parses the (NFS, of course) header to be larger.  In
+		 * that case, it fills the header buffer and spills the rest
+		 * into the page.
+		 */
+		hlen = (le16_to_cpu(rx_desc->wb.lower.lo_dword.hdr_info) &
+		  E1000_RXDADV_HDRBUFLEN_MASK) >> E1000_RXDADV_HDRBUFLEN_SHIFT;
+		if (hlen > adapter->rx_ps_hdr_size)
+			hlen = adapter->rx_ps_hdr_size;
+
 		if (!skb_shinfo(skb)->nr_frags) {
 			pci_unmap_single(pdev, buffer_info->dma,
-					 adapter->rx_ps_hdr_size +
-					   NET_IP_ALIGN,
+					 adapter->rx_ps_hdr_size + NET_IP_ALIGN,
 					 PCI_DMA_FROMDEVICE);
 			skb_put(skb, hlen);
 		}
@@ -3916,13 +4517,6 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 
 			skb->truesize += length;
 		}
-send_up:
-		i++;
-		if (i == rx_ring->count)
-			i = 0;
-		next_rxd = E1000_RX_DESC_ADV(*rx_ring, i);
-		prefetch(next_rxd);
-		next_buffer = &rx_ring->buffer_info[i];
 
 		if (!(staterr & E1000_RXD_STAT_EOP)) {
 			buffer_info->skb = next_buffer->skb;
@@ -3931,6 +4525,47 @@ send_up:
 			next_buffer->dma = 0;
 			goto next_desc;
 		}
+send_up:
+		/*
+		 * If this bit is set, then the RX registers contain
+		 * the time stamp. No other packet will be time
+		 * stamped until we read these registers, so read the
+		 * registers to make them available again. Because
+		 * only one packet can be time stamped at a time, we
+		 * know that the register values must belong to this
+		 * one here and therefore we don't need to compare
+		 * any of the additional attributes stored for it.
+		 *
+		 * If nothing went wrong, then it should have a
+		 * skb_shared_tx that we can turn into a
+		 * skb_shared_hwtstamps.
+		 *
+		 * TODO: can time stamping be triggered (thus locking
+		 * the registers) without the packet reaching this point
+		 * here? In that case RX time stamping would get stuck.
+		 *
+		 * TODO: in "time stamp all packets" mode this bit is
+		 * not set. Need a global flag for this mode and then
+		 * always read the registers. Cannot be done without
+		 * a race condition.
+		 */
+		if (unlikely(staterr & E1000_RXD_STAT_TS)) {
+			u64 regval;
+			u64 ns;
+			struct skb_shared_hwtstamps *shhwtstamps =
+				skb_hwtstamps(skb);
+
+			WARN(!(rd32(E1000_TSYNCRXCTL) & E1000_TSYNCRXCTL_VALID),
+			     "igb: no RX time stamp available for time stamped packet");
+			regval = rd32(E1000_RXSTMPL);
+			regval |= (u64)rd32(E1000_RXSTMPH) << 32;
+			ns = timecounter_cyc2time(&adapter->clock, regval);
+			timecompare_update(&adapter->compare, ns);
+			memset(shhwtstamps, 0, sizeof(*shhwtstamps));
+			shhwtstamps->hwtstamp = ns_to_ktime(ns);
+			shhwtstamps->syststamp =
+				timecompare_transform(&adapter->compare, ns);
+		}
 
 		if (staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) {
 			dev_kfree_skb_irq(skb);
@@ -3958,19 +4593,11 @@ next_desc:
 		/* use prefetched values */
 		rx_desc = next_rxd;
 		buffer_info = next_buffer;
-
 		staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
 	}
 
 	rx_ring->next_to_clean = i;
-	cleaned_count = IGB_DESC_UNUSED(rx_ring);
-
-#ifdef CONFIG_IGB_LRO
-	if (rx_ring->lro_used) {
-		lro_flush_all(&rx_ring->lro_mgr);
-		rx_ring->lro_used = 0;
-	}
-#endif
+	cleaned_count = igb_desc_unused(rx_ring);
 
 	if (cleaned_count)
 		igb_alloc_rx_buffers_adv(rx_ring, cleaned_count);
@@ -3984,7 +4611,6 @@ next_desc:
 	return cleaned;
 }
 
-
 /**
  * igb_alloc_rx_buffers_adv - Replace used receive buffers; packet split
  * @adapter: address of board private structure
@@ -3999,10 +4625,17 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring,
 	struct igb_buffer *buffer_info;
 	struct sk_buff *skb;
 	unsigned int i;
+	int bufsz;
 
 	i = rx_ring->next_to_use;
 	buffer_info = &rx_ring->buffer_info[i];
 
+	if (adapter->rx_ps_hdr_size)
+		bufsz = adapter->rx_ps_hdr_size;
+	else
+		bufsz = adapter->rx_buffer_len;
+	bufsz += NET_IP_ALIGN;
+
 	while (cleaned_count--) {
 		rx_desc = E1000_RX_DESC_ADV(*rx_ring, i);
 
@@ -4018,23 +4651,14 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring,
 				buffer_info->page_offset ^= PAGE_SIZE / 2;
 			}
 			buffer_info->page_dma =
-				pci_map_page(pdev,
-					     buffer_info->page,
+				pci_map_page(pdev, buffer_info->page,
 					     buffer_info->page_offset,
 					     PAGE_SIZE / 2,
 					     PCI_DMA_FROMDEVICE);
 		}
 
 		if (!buffer_info->skb) {
-			int bufsz;
-
-			if (adapter->rx_ps_hdr_size)
-				bufsz = adapter->rx_ps_hdr_size;
-			else
-				bufsz = adapter->rx_buffer_len;
-			bufsz += NET_IP_ALIGN;
 			skb = netdev_alloc_skb(netdev, bufsz);
-
 			if (!skb) {
 				adapter->alloc_rx_buff_failed++;
 				goto no_buffers;
@@ -4050,7 +4674,6 @@ static void igb_alloc_rx_buffers_adv(struct igb_ring *rx_ring,
 			buffer_info->dma = pci_map_single(pdev, skb->data,
 							  bufsz,
 							  PCI_DMA_FROMDEVICE);
-
 		}
 		/* Refresh the desc even if buffer_addrs didn't change because
 		 * each write-back erases this info. */
@@ -4120,6 +4743,163 @@ static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 }
 
 /**
+ * igb_hwtstamp_ioctl - control hardware time stamping
+ * @netdev:
+ * @ifreq:
+ * @cmd:
+ *
+ * Outgoing time stamping can be enabled and disabled. Play nice and
+ * disable it when requested, although it shouldn't case any overhead
+ * when no packet needs it. At most one packet in the queue may be
+ * marked for time stamping, otherwise it would be impossible to tell
+ * for sure to which packet the hardware time stamp belongs.
+ *
+ * Incoming time stamping has to be configured via the hardware
+ * filters. Not all combinations are supported, in particular event
+ * type has to be specified. Matching the kind of event packet is
+ * not supported, with the exception of "all V2 events regardless of
+ * level 2 or 4".
+ *
+ **/
+static int igb_hwtstamp_ioctl(struct net_device *netdev,
+			      struct ifreq *ifr, int cmd)
+{
+	struct igb_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	struct hwtstamp_config config;
+	u32 tsync_tx_ctl_bit = E1000_TSYNCTXCTL_ENABLED;
+	u32 tsync_rx_ctl_bit = E1000_TSYNCRXCTL_ENABLED;
+	u32 tsync_rx_ctl_type = 0;
+	u32 tsync_rx_cfg = 0;
+	int is_l4 = 0;
+	int is_l2 = 0;
+	short port = 319; /* PTP */
+	u32 regval;
+
+	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
+		return -EFAULT;
+
+	/* reserved for future extensions */
+	if (config.flags)
+		return -EINVAL;
+
+	switch (config.tx_type) {
+	case HWTSTAMP_TX_OFF:
+		tsync_tx_ctl_bit = 0;
+		break;
+	case HWTSTAMP_TX_ON:
+		tsync_tx_ctl_bit = E1000_TSYNCTXCTL_ENABLED;
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	switch (config.rx_filter) {
+	case HWTSTAMP_FILTER_NONE:
+		tsync_rx_ctl_bit = 0;
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+	case HWTSTAMP_FILTER_ALL:
+		/*
+		 * register TSYNCRXCFG must be set, therefore it is not
+		 * possible to time stamp both Sync and Delay_Req messages
+		 * => fall back to time stamping all packets
+		 */
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_ALL;
+		config.rx_filter = HWTSTAMP_FILTER_ALL;
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_L4_V1;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_SYNC_MESSAGE;
+		is_l4 = 1;
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_L4_V1;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V1_DELAY_REQ_MESSAGE;
+		is_l4 = 1;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_L2_L4_V2;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_SYNC_MESSAGE;
+		is_l2 = 1;
+		is_l4 = 1;
+		config.rx_filter = HWTSTAMP_FILTER_SOME;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_L2_L4_V2;
+		tsync_rx_cfg = E1000_TSYNCRXCFG_PTP_V2_DELAY_REQ_MESSAGE;
+		is_l2 = 1;
+		is_l4 = 1;
+		config.rx_filter = HWTSTAMP_FILTER_SOME;
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
+		tsync_rx_ctl_type = E1000_TSYNCRXCTL_TYPE_EVENT_V2;
+		config.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
+		is_l2 = 1;
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	/* enable/disable TX */
+	regval = rd32(E1000_TSYNCTXCTL);
+	regval = (regval & ~E1000_TSYNCTXCTL_ENABLED) | tsync_tx_ctl_bit;
+	wr32(E1000_TSYNCTXCTL, regval);
+
+	/* enable/disable RX, define which PTP packets are time stamped */
+	regval = rd32(E1000_TSYNCRXCTL);
+	regval = (regval & ~E1000_TSYNCRXCTL_ENABLED) | tsync_rx_ctl_bit;
+	regval = (regval & ~0xE) | tsync_rx_ctl_type;
+	wr32(E1000_TSYNCRXCTL, regval);
+	wr32(E1000_TSYNCRXCFG, tsync_rx_cfg);
+
+	/*
+	 * Ethertype Filter Queue Filter[0][15:0] = 0x88F7
+	 *                                          (Ethertype to filter on)
+	 * Ethertype Filter Queue Filter[0][26] = 0x1 (Enable filter)
+	 * Ethertype Filter Queue Filter[0][30] = 0x1 (Enable Timestamping)
+	 */
+	wr32(E1000_ETQF0, is_l2 ? 0x440088f7 : 0);
+
+	/* L4 Queue Filter[0]: only filter by source and destination port */
+	wr32(E1000_SPQF0, htons(port));
+	wr32(E1000_IMIREXT(0), is_l4 ?
+	     ((1<<12) | (1<<19) /* bypass size and control flags */) : 0);
+	wr32(E1000_IMIR(0), is_l4 ?
+	     (htons(port)
+	      | (0<<16) /* immediate interrupt disabled */
+	      | 0 /* (1<<17) bit cleared: do not bypass
+		     destination port check */)
+		: 0);
+	wr32(E1000_FTQF0, is_l4 ?
+	     (0x11 /* UDP */
+	      | (1<<15) /* VF not compared */
+	      | (1<<27) /* Enable Timestamping */
+	      | (7<<28) /* only source port filter enabled,
+			   source/target address and protocol
+			   masked */)
+	     : ((1<<15) | (15<<28) /* all mask bits set = filter not
+				      enabled */));
+
+	wrfl();
+
+	adapter->hwtstamp_config = config;
+
+	/* clear TX/RX time stamp registers, just to be sure */
+	regval = rd32(E1000_TXSTMPH);
+	regval = rd32(E1000_RXSTMPH);
+
+	return copy_to_user(ifr->ifr_data, &config, sizeof(config)) ?
+		-EFAULT : 0;
+}
+
+/**
  * igb_ioctl -
  * @netdev:
  * @ifreq:
@@ -4132,6 +4912,8 @@ static int igb_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 	case SIOCGMIIREG:
 	case SIOCSMIIREG:
 		return igb_mii_ioctl(netdev, ifr, cmd);
+	case SIOCSHWTSTAMP:
+		return igb_hwtstamp_ioctl(netdev, ifr, cmd);
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -4158,8 +4940,6 @@ static void igb_vlan_rx_register(struct net_device *netdev,
 		rctl &= ~E1000_RCTL_CFIEN;
 		wr32(E1000_RCTL, rctl);
 		igb_update_mng_vlan(adapter);
-		wr32(E1000_RLPML,
-				adapter->max_frame_size + VLAN_TAG_SIZE);
 	} else {
 		/* disable VLAN tag insert/strip */
 		ctrl = rd32(E1000_CTRL);
@@ -4170,10 +4950,10 @@ static void igb_vlan_rx_register(struct net_device *netdev,
 			igb_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
 			adapter->mng_vlan_id = IGB_MNG_VLAN_NONE;
 		}
-		wr32(E1000_RLPML,
-				adapter->max_frame_size);
 	}
 
+	igb_rlpml_set(adapter);
+
 	if (!test_bit(__IGB_DOWN, &adapter->state))
 		igb_irq_enable(adapter);
 }
@@ -4182,24 +4962,25 @@ static void igb_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
-	u32 vfta, index;
+	int pf_id = adapter->vfs_allocated_count;
 
-	if ((adapter->hw.mng_cookie.status &
+	if ((hw->mng_cookie.status &
 	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
 	    (vid == adapter->mng_vlan_id))
 		return;
-	/* add VID to filter table */
-	index = (vid >> 5) & 0x7F;
-	vfta = array_rd32(E1000_VFTA, index);
-	vfta |= (1 << (vid & 0x1F));
-	igb_write_vfta(&adapter->hw, index, vfta);
+
+	/* add vid to vlvf if sr-iov is enabled,
+	 * if that fails add directly to filter table */
+	if (igb_vlvf_set(adapter, vid, true, pf_id))
+		igb_vfta_set(hw, vid, true);
+
 }
 
 static void igb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
-	u32 vfta, index;
+	int pf_id = adapter->vfs_allocated_count;
 
 	igb_irq_disable(adapter);
 	vlan_group_set_device(adapter->vlgrp, vid, NULL);
@@ -4215,11 +4996,10 @@ static void igb_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
 		return;
 	}
 
-	/* remove VID from filter table */
-	index = (vid >> 5) & 0x7F;
-	vfta = array_rd32(E1000_VFTA, index);
-	vfta &= ~(1 << (vid & 0x1F));
-	igb_write_vfta(&adapter->hw, index, vfta);
+	/* remove vid from vlvf if sr-iov is enabled,
+	 * if not in vlvf remove from vfta */
+	if (igb_vlvf_set(adapter, vid, false, pf_id))
+		igb_vfta_set(hw, vid, false);
 }
 
 static void igb_restore_vlan(struct igb_adapter *adapter)
@@ -4276,7 +5056,6 @@ int igb_set_spd_dplx(struct igb_adapter *adapter, u16 spddplx)
 	return 0;
 }
 
-
 static int igb_suspend(struct pci_dev *pdev, pm_message_t state)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
@@ -4368,10 +5147,7 @@ static int igb_resume(struct pci_dev *pdev)
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
 
-	if (adapter->need_ioport)
-		err = pci_enable_device(pdev);
-	else
-		err = pci_enable_device_mem(pdev);
+	err = pci_enable_device_mem(pdev);
 	if (err) {
 		dev_err(&pdev->dev,
 			"igb: Cannot enable PCI device from suspend\n");
@@ -4392,6 +5168,11 @@ static int igb_resume(struct pci_dev *pdev)
 	/* e1000_power_up_phy(adapter); */
 
 	igb_reset(adapter);
+
+	/* let the f/w know that the h/w is now under the control of the
+	 * driver. */
+	igb_get_hw_control(adapter);
+
 	wr32(E1000_WUS, ~0);
 
 	if (netif_running(netdev)) {
@@ -4402,10 +5183,6 @@ static int igb_resume(struct pci_dev *pdev)
 
 	netif_device_attach(netdev);
 
-	/* let the f/w know that the h/w is now under the control of the
-	 * driver. */
-	igb_get_hw_control(adapter);
-
 	return 0;
 }
 #endif
@@ -4424,22 +5201,27 @@ static void igb_shutdown(struct pci_dev *pdev)
 static void igb_netpoll(struct net_device *netdev)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
 	int i;
-	int work_done = 0;
 
-	igb_irq_disable(adapter);
-	adapter->flags |= IGB_FLAG_IN_NETPOLL;
-
-	for (i = 0; i < adapter->num_tx_queues; i++)
-		igb_clean_tx_irq(&adapter->tx_ring[i]);
+	if (!adapter->msix_entries) {
+		igb_irq_disable(adapter);
+		napi_schedule(&adapter->rx_ring[0].napi);
+		return;
+	}
 
-	for (i = 0; i < adapter->num_rx_queues; i++)
-		igb_clean_rx_irq_adv(&adapter->rx_ring[i],
-				     &work_done,
-				     adapter->rx_ring[i].napi.weight);
+	for (i = 0; i < adapter->num_tx_queues; i++) {
+		struct igb_ring *tx_ring = &adapter->tx_ring[i];
+		wr32(E1000_EIMC, tx_ring->eims_value);
+		igb_clean_tx_irq(tx_ring);
+		wr32(E1000_EIMS, tx_ring->eims_value);
+	}
 
-	adapter->flags &= ~IGB_FLAG_IN_NETPOLL;
-	igb_irq_enable(adapter);
+	for (i = 0; i < adapter->num_rx_queues; i++) {
+		struct igb_ring *rx_ring = &adapter->rx_ring[i];
+		wr32(E1000_EIMC, rx_ring->eims_value);
+		napi_schedule(&rx_ring->napi);
+	}
 }
 #endif /* CONFIG_NET_POLL_CONTROLLER */
 
@@ -4482,12 +5264,7 @@ static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev)
 	pci_ers_result_t result;
 	int err;
 
-	if (adapter->need_ioport)
-		err = pci_enable_device(pdev);
-	else
-		err = pci_enable_device_mem(pdev);
-
-	if (err) {
+	if (pci_enable_device_mem(pdev)) {
 		dev_err(&pdev->dev,
 			"Cannot re-enable PCI device after reset.\n");
 		result = PCI_ERS_RESULT_DISCONNECT;
@@ -4540,4 +5317,172 @@ static void igb_io_resume(struct pci_dev *pdev)
 	igb_get_hw_control(adapter);
 }
 
+static inline void igb_set_vmolr(struct e1000_hw *hw, int vfn)
+{
+	u32 reg_data;
+
+	reg_data = rd32(E1000_VMOLR(vfn));
+	reg_data |= E1000_VMOLR_BAM |	 /* Accept broadcast */
+	            E1000_VMOLR_ROPE |   /* Accept packets matched in UTA */
+	            E1000_VMOLR_ROMPE |  /* Accept packets matched in MTA */
+	            E1000_VMOLR_AUPE |   /* Accept untagged packets */
+	            E1000_VMOLR_STRVLAN; /* Strip vlan tags */
+	wr32(E1000_VMOLR(vfn), reg_data);
+}
+
+static inline int igb_set_vf_rlpml(struct igb_adapter *adapter, int size,
+                                 int vfn)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 vmolr;
+
+	vmolr = rd32(E1000_VMOLR(vfn));
+	vmolr &= ~E1000_VMOLR_RLPML_MASK;
+	vmolr |= size | E1000_VMOLR_LPE;
+	wr32(E1000_VMOLR(vfn), vmolr);
+
+	return 0;
+}
+
+static inline void igb_set_rah_pool(struct e1000_hw *hw, int pool, int entry)
+{
+	u32 reg_data;
+
+	reg_data = rd32(E1000_RAH(entry));
+	reg_data &= ~E1000_RAH_POOL_MASK;
+	reg_data |= E1000_RAH_POOL_1 << pool;;
+	wr32(E1000_RAH(entry), reg_data);
+}
+
+static void igb_set_mc_list_pools(struct igb_adapter *adapter,
+				  int entry_count, u16 total_rar_filters)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	int i = adapter->vfs_allocated_count + 1;
+
+	if ((i + entry_count) < total_rar_filters)
+		total_rar_filters = i + entry_count;
+
+	for (; i < total_rar_filters; i++)
+		igb_set_rah_pool(hw, adapter->vfs_allocated_count, i);
+}
+
+static int igb_set_vf_mac(struct igb_adapter *adapter,
+                          int vf, unsigned char *mac_addr)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	int rar_entry = vf + 1; /* VF MAC addresses start at entry 1 */
+
+	igb_rar_set(hw, mac_addr, rar_entry);
+
+	memcpy(adapter->vf_data[vf].vf_mac_addresses, mac_addr, ETH_ALEN);
+
+	igb_set_rah_pool(hw, vf, rar_entry);
+
+	return 0;
+}
+
+static void igb_vmm_control(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 reg_data;
+
+	if (!adapter->vfs_allocated_count)
+		return;
+
+	/* VF's need PF reset indication before they
+	 * can send/receive mail */
+	reg_data = rd32(E1000_CTRL_EXT);
+	reg_data |= E1000_CTRL_EXT_PFRSTD;
+	wr32(E1000_CTRL_EXT, reg_data);
+
+	igb_vmdq_set_loopback_pf(hw, true);
+	igb_vmdq_set_replication_pf(hw, true);
+}
+
+#ifdef CONFIG_PCI_IOV
+static ssize_t igb_show_num_vfs(struct device *dev,
+                                struct device_attribute *attr, char *buf)
+{
+	struct igb_adapter *adapter = netdev_priv(to_net_dev(dev));
+
+	return sprintf(buf, "%d\n", adapter->vfs_allocated_count);
+}
+
+static ssize_t igb_set_num_vfs(struct device *dev,
+                               struct device_attribute *attr,
+                               const char *buf, size_t count)
+{
+	struct net_device *netdev = to_net_dev(dev);
+	struct igb_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	struct pci_dev *pdev = adapter->pdev;
+	unsigned int num_vfs, i;
+	unsigned char mac_addr[ETH_ALEN];
+	int err;
+
+	sscanf(buf, "%u", &num_vfs);
+
+	if (num_vfs > 7)
+		num_vfs = 7;
+
+	/* value unchanged do nothing */
+	if (num_vfs == adapter->vfs_allocated_count)
+		return count;
+
+	if (netdev->flags & IFF_UP)
+		igb_close(netdev);
+
+	igb_reset_interrupt_capability(adapter);
+	igb_free_queues(adapter);
+	adapter->tx_ring = NULL;
+	adapter->rx_ring = NULL;
+	adapter->vfs_allocated_count = 0;
+
+	/* reclaim resources allocated to VFs since we are changing count */
+	if (adapter->vf_data) {
+		/* disable iov and allow time for transactions to clear */
+		pci_disable_sriov(pdev);
+		msleep(500);
+
+		kfree(adapter->vf_data);
+		adapter->vf_data = NULL;
+		wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ);
+		msleep(100);
+		dev_info(&pdev->dev, "IOV Disabled\n");
+	}
+
+	if (num_vfs) {
+		adapter->vf_data = kcalloc(num_vfs,
+		                           sizeof(struct vf_data_storage),
+		                           GFP_KERNEL);
+		if (!adapter->vf_data) {
+			dev_err(&pdev->dev, "Could not allocate VF private "
+				"data - IOV enable failed\n");
+		} else {
+			err = pci_enable_sriov(pdev, num_vfs);
+			if (!err) {
+				adapter->vfs_allocated_count = num_vfs;
+				dev_info(&pdev->dev, "%d vfs allocated\n", num_vfs);
+				for (i = 0; i < adapter->vfs_allocated_count; i++) {
+					random_ether_addr(mac_addr);
+					igb_set_vf_mac(adapter, i, mac_addr);
+				}
+			} else {
+				kfree(adapter->vf_data);
+				adapter->vf_data = NULL;
+			}
+		}
+	}
+
+	igb_set_interrupt_capability(adapter);
+	igb_alloc_queues(adapter);
+	igb_reset(adapter);
+
+	if (netdev->flags & IFF_UP)
+		igb_open(netdev);
+
+	return count;
+}
+#endif /* CONFIG_PCI_IOV */
 /* igb_main.c */