1 files changed, 189 insertions, 262 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index a50db5398fa5..f8c2919bcec0 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,
@@ -48,12 +48,12 @@
 #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,
@@ -115,9 +115,6 @@ 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 *);
@@ -407,7 +404,7 @@ 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++) {
@@ -546,6 +543,11 @@ 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 +689,7 @@ 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);
+		wr32(E1000_IMS, E1000_IMS_LSC | E1000_IMS_DOUTSYNC);
 	} else {
 		wr32(E1000_IMS, IMS_ENABLE_MASK);
 		wr32(E1000_IAM, IMS_ENABLE_MASK);
@@ -856,6 +858,10 @@ 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 +892,14 @@ 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) &&
@@ -972,21 +981,6 @@ 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,
@@ -1026,21 +1020,12 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	struct pci_dev *us_dev;
 	const struct e1000_info *ei = igb_info_tbl[ent->driver_data];
 	unsigned long mmio_start, mmio_len;
-	int i, err, pci_using_dac, pos;
+	int err, pci_using_dac, pos;
 	u16 eeprom_data = 0, state = 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;
 
@@ -1083,7 +1068,9 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 		break;
 	}
 
-	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;
 
@@ -1111,15 +1098,13 @@ 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;
@@ -1147,8 +1132,9 @@ 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;
@@ -1180,27 +1166,27 @@ 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;
+	netdev->features |= NETIF_F_GRO;
 #endif
 
 	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
@@ -1238,14 +1224,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 	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;
@@ -1266,8 +1245,7 @@ static int __devinit igb_probe(struct pci_dev *pdev,
 
 	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);
+		hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
 
 	if (eeprom_data & eeprom_apme_mask)
 		adapter->eeprom_wol |= E1000_WUFC_MAG;
@@ -1352,15 +1330,14 @@ 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);
@@ -1380,9 +1357,7 @@ 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
@@ -1411,15 +1386,15 @@ 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);
+	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);
 
@@ -1454,11 +1429,6 @@ 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);
@@ -1657,7 +1627,7 @@ 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;
 }
 
@@ -1738,14 +1708,6 @@ int igb_setup_rx_resources(struct igb_adapter *adapter,
 	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)
@@ -1772,10 +1734,6 @@ 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");
@@ -1824,7 +1782,7 @@ 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
@@ -1929,16 +1887,6 @@ 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) {
@@ -2127,11 +2075,6 @@ 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;
@@ -2231,15 +2174,16 @@ 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);
 
-	adapter->hw.mac.ops.rar_set(&adapter->hw, adapter->hw.mac.addr, 0);
+	hw->mac.ops.rar_set(hw, hw->mac.addr, 0);
 
 	return 0;
 }
@@ -2282,8 +2226,8 @@ static void igb_set_multi(struct net_device *netdev)
 
 	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);
+		igb_update_mc_addr_list(hw, NULL, 0, 1,
+					mac->rar_entry_count);
 		return;
 	}
 
@@ -2300,8 +2244,7 @@ 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, 1, mac->rar_entry_count);
 	kfree(mta_list);
 }
 
@@ -2314,6 +2257,46 @@ 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
  **/
@@ -2329,34 +2312,16 @@ 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;
@@ -2395,6 +2360,7 @@ static void igb_watchdog_task(struct work_struct *work)
 			netif_carrier_on(netdev);
 			netif_tx_wake_all_queues(netdev);
 
+			/* 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));
@@ -2408,6 +2374,8 @@ static void igb_watchdog_task(struct work_struct *work)
 			       netdev->name);
 			netif_carrier_off(netdev);
 			netif_tx_stop_all_queues(netdev);
+
+			/* 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));
@@ -2417,9 +2385,9 @@ 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;
@@ -2779,12 +2747,12 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter,
 
 		if (skb->ip_summed == CHECKSUM_PARTIAL) {
 			switch (skb->protocol) {
-			case __constant_htons(ETH_P_IP):
+			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;
@@ -2803,6 +2771,8 @@ 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;
@@ -2981,12 +2951,9 @@ 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 tso = 0;
 
-	len = skb_headlen(skb);
-
 	if (test_bit(__IGB_DOWN, &adapter->state)) {
 		dev_kfree_skb_any(skb);
 		return NETDEV_TX_OK;
@@ -3072,8 +3039,8 @@ 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)
@@ -3317,15 +3284,20 @@ 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_DOUTSYNC) {
+		/* HW is reporting DMA is out of sync */
+		adapter->stats.doosync++;
+	}
 	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);
+	wr32(E1000_IMS, E1000_IMS_LSC | E1000_IMS_DOUTSYNC);
 	wr32(E1000_EIMS, adapter->eims_other);
 
 	return IRQ_HANDLED;
@@ -3385,8 +3357,8 @@ 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)
@@ -3529,19 +3501,24 @@ 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
  **/
@@ -3553,7 +3530,6 @@ 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 */
 
@@ -3564,7 +3540,10 @@ 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;
@@ -3573,7 +3552,7 @@ 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;
 }
@@ -3608,7 +3587,7 @@ static int igb_poll(struct napi_struct *napi, int budget)
 	    !netif_running(netdev)) {
 		if (adapter->itr_setting & 3)
 			igb_set_itr(adapter);
-		netif_rx_complete(napi);
+		napi_complete(napi);
 		if (!test_bit(__IGB_DOWN, &adapter->state))
 			igb_irq_enable(adapter);
 		return 0;
@@ -3634,7 +3613,7 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget)
 
 	/* If not enough Rx work done, exit the polling mode */
 	if ((work_done == 0) || !netif_running(netdev)) {
-		netif_rx_complete(napi);
+		napi_complete(napi);
 
 		if (adapter->itr_setting & 3) {
 			if (adapter->num_rx_queues == 1)
@@ -3764,42 +3743,9 @@ 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)
  * @skb: pointer to sk_buff to be indicated to stack
@@ -3811,28 +3757,21 @@ 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
 }
 
 
@@ -3874,6 +3813,7 @@ static bool igb_clean_rx_irq_adv(struct igb_ring *rx_ring,
 	unsigned int total_bytes = 0, total_packets = 0;
 
 	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);
 
@@ -3881,25 +3821,22 @@ 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 +
@@ -3909,6 +3846,16 @@ 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 +
@@ -3938,13 +3885,6 @@ 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;
@@ -3953,7 +3893,7 @@ send_up:
 			next_buffer->dma = 0;
 			goto next_desc;
 		}
-
+send_up:
 		if (staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) {
 			dev_kfree_skb_irq(skb);
 			goto next_desc;
@@ -3980,20 +3920,12 @@ 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
-
 	if (cleaned_count)
 		igb_alloc_rx_buffers_adv(rx_ring, cleaned_count);
 
@@ -4021,10 +3953,17 @@ 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);
 
@@ -4040,23 +3979,14 @@ 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;
@@ -4072,7 +4002,6 @@ 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. */
@@ -4206,7 +4135,7 @@ static void igb_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
 	struct e1000_hw *hw = &adapter->hw;
 	u32 vfta, index;
 
-	if ((adapter->hw.mng_cookie.status &
+	if ((hw->mng_cookie.status &
 	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
 	    (vid == adapter->mng_vlan_id))
 		return;
@@ -4390,10 +4319,7 @@ 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");
@@ -4414,6 +4340,11 @@ 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)) {
@@ -4424,10 +4355,6 @@ 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
@@ -4446,22 +4373,27 @@ 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 */
 
@@ -4504,12 +4436,7 @@ 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;