diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
new file mode 100644
index 0000000..eeb40cc
--- /dev/null
+++ b/drivers/net/e1000e/netdev.c
@@ -0,0 +1,4441 @@
+/*******************************************************************************
+
+  Intel PRO/1000 Linux driver
+  Copyright(c) 1999 - 2007 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,
+  version 2, as published by the Free Software Foundation.
+
+  This program is distributed in the hope it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+  The full GNU General Public License is included in this distribution in
+  the file called "COPYING".
+
+  Contact Information:
+  Linux NICS <linux.nics@intel.com>
+  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/pagemap.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/tcp.h>
+#include <linux/ipv6.h>
+#include <net/checksum.h>
+#include <net/ip6_checksum.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/cpu.h>
+#include <linux/smp.h>
+
+#include "e1000.h"
+
+#define DRV_VERSION "0.2.0"
+char e1000e_driver_name[] = "e1000e";
+const char e1000e_driver_version[] = DRV_VERSION;
+
+static const struct e1000_info *e1000_info_tbl[] = {
+	[board_82571]		= &e1000_82571_info,
+	[board_82572]		= &e1000_82572_info,
+	[board_82573]		= &e1000_82573_info,
+	[board_80003es2lan]	= &e1000_es2_info,
+	[board_ich8lan]		= &e1000_ich8_info,
+	[board_ich9lan]		= &e1000_ich9_info,
+};
+
+#ifdef DEBUG
+/**
+ * e1000_get_hw_dev_name - return device name string
+ * used by hardware layer to print debugging information
+ **/
+char *e1000e_get_hw_dev_name(struct e1000_hw *hw)
+{
+	struct e1000_adapter *adapter = hw->back;
+	struct net_device *netdev = adapter->netdev;
+	return netdev->name;
+}
+#endif
+
+/**
+ * e1000_desc_unused - calculate if we have unused descriptors
+ **/
+static int e1000_desc_unused(struct e1000_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;
+}
+
+/**
+ * e1000_receive_skb - helper function to handle rx indications
+ * @adapter: board private structure
+ * @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
+ **/
+static void e1000_receive_skb(struct e1000_adapter *adapter,
+			      struct net_device *netdev,
+			      struct sk_buff *skb,
+			      u8 status, u16 vlan)
+{
+	skb->protocol = eth_type_trans(skb, netdev);
+
+	if (adapter->vlgrp && (status & E1000_RXD_STAT_VP))
+		vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
+					 le16_to_cpu(vlan) &
+					 E1000_RXD_SPC_VLAN_MASK);
+	else
+		netif_receive_skb(skb);
+
+	netdev->last_rx = jiffies;
+}
+
+/**
+ * e1000_rx_checksum - Receive Checksum Offload for 82543
+ * @adapter:     board private structure
+ * @status_err:  receive descriptor status and error fields
+ * @csum:	receive descriptor csum field
+ * @sk_buff:     socket buffer with received data
+ **/
+static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
+			      u32 csum, struct sk_buff *skb)
+{
+	u16 status = (u16)status_err;
+	u8 errors = (u8)(status_err >> 24);
+	skb->ip_summed = CHECKSUM_NONE;
+
+	/* Ignore Checksum bit is set */
+	if (status & E1000_RXD_STAT_IXSM)
+		return;
+	/* TCP/UDP checksum error bit is set */
+	if (errors & E1000_RXD_ERR_TCPE) {
+		/* let the stack verify checksum errors */
+		adapter->hw_csum_err++;
+		return;
+	}
+
+	/* TCP/UDP Checksum has not been calculated */
+	if (!(status & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS)))
+		return;
+
+	/* It must be a TCP or UDP packet with a valid checksum */
+	if (status & E1000_RXD_STAT_TCPCS) {
+		/* TCP checksum is good */
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+	} else {
+		/* IP fragment with UDP payload */
+		/* Hardware complements the payload checksum, so we undo it
+		 * and then put the value in host order for further stack use.
+		 */
+		csum = ntohl(csum ^ 0xFFFF);
+		skb->csum = csum;
+		skb->ip_summed = CHECKSUM_COMPLETE;
+	}
+	adapter->hw_csum_good++;
+}
+
+/**
+ * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended
+ * @adapter: address of board private structure
+ **/
+static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
+				   int cleaned_count)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	struct e1000_rx_desc *rx_desc;
+	struct e1000_buffer *buffer_info;
+	struct sk_buff *skb;
+	unsigned int i;
+	unsigned int bufsz = adapter->rx_buffer_len + NET_IP_ALIGN;
+
+	i = rx_ring->next_to_use;
+	buffer_info = &rx_ring->buffer_info[i];
+
+	while (cleaned_count--) {
+		skb = buffer_info->skb;
+		if (skb) {
+			skb_trim(skb, 0);
+			goto map_skb;
+		}
+
+		skb = netdev_alloc_skb(netdev, bufsz);
+		if (!skb) {
+			/* Better luck next round */
+			adapter->alloc_rx_buff_failed++;
+			break;
+		}
+
+		/* Make buffer alignment 2 beyond a 16 byte boundary
+		 * this will result in a 16 byte aligned IP header after
+		 * the 14 byte MAC header is removed
+		 */
+		skb_reserve(skb, NET_IP_ALIGN);
+
+		buffer_info->skb = skb;
+map_skb:
+		buffer_info->dma = pci_map_single(pdev, skb->data,
+						  adapter->rx_buffer_len,
+						  PCI_DMA_FROMDEVICE);
+		if (pci_dma_mapping_error(buffer_info->dma)) {
+			dev_err(&pdev->dev, "RX DMA map failed\n");
+			adapter->rx_dma_failed++;
+			break;
+		}
+
+		rx_desc = E1000_RX_DESC(*rx_ring, i);
+		rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
+
+		i++;
+		if (i == rx_ring->count)
+			i = 0;
+		buffer_info = &rx_ring->buffer_info[i];
+	}
+
+	if (rx_ring->next_to_use != i) {
+		rx_ring->next_to_use = i;
+		if (i-- == 0)
+			i = (rx_ring->count - 1);
+
+		/* Force memory writes to complete before letting h/w
+		 * know there are new descriptors to fetch.  (Only
+		 * applicable for weak-ordered memory model archs,
+		 * such as IA-64). */
+		wmb();
+		writel(i, adapter->hw.hw_addr + rx_ring->tail);
+	}
+}
+
+/**
+ * e1000_alloc_rx_buffers_ps - Replace used receive buffers; packet split
+ * @adapter: address of board private structure
+ **/
+static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter,
+				      int cleaned_count)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+	union e1000_rx_desc_packet_split *rx_desc;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	struct e1000_buffer *buffer_info;
+	struct e1000_ps_page *ps_page;
+	struct sk_buff *skb;
+	unsigned int i, j;
+
+	i = rx_ring->next_to_use;
+	buffer_info = &rx_ring->buffer_info[i];
+
+	while (cleaned_count--) {
+		rx_desc = E1000_RX_DESC_PS(*rx_ring, i);
+
+		for (j = 0; j < PS_PAGE_BUFFERS; j++) {
+			ps_page = &rx_ring->ps_pages[(i * PS_PAGE_BUFFERS)
+						     + j];
+			if (j < adapter->rx_ps_pages) {
+				if (!ps_page->page) {
+					ps_page->page = alloc_page(GFP_ATOMIC);
+					if (!ps_page->page) {
+						adapter->alloc_rx_buff_failed++;
+						goto no_buffers;
+					}
+					ps_page->dma = pci_map_page(pdev,
+							   ps_page->page,
+							   0, PAGE_SIZE,
+							   PCI_DMA_FROMDEVICE);
+					if (pci_dma_mapping_error(
+							ps_page->dma)) {
+						dev_err(&adapter->pdev->dev,
+						  "RX DMA page map failed\n");
+						adapter->rx_dma_failed++;
+						goto no_buffers;
+					}
+				}
+				/*
+				 * Refresh the desc even if buffer_addrs
+				 * didn't change because each write-back
+				 * erases this info.
+				 */
+				rx_desc->read.buffer_addr[j+1] =
+				     cpu_to_le64(ps_page->dma);
+			} else {
+				rx_desc->read.buffer_addr[j+1] = ~0;
+			}
+		}
+
+		skb = netdev_alloc_skb(netdev,
+				       adapter->rx_ps_bsize0 + NET_IP_ALIGN);
+
+		if (!skb) {
+			adapter->alloc_rx_buff_failed++;
+			break;
+		}
+
+		/* Make buffer alignment 2 beyond a 16 byte boundary
+		 * this will result in a 16 byte aligned IP header after
+		 * the 14 byte MAC header is removed
+		 */
+		skb_reserve(skb, NET_IP_ALIGN);
+
+		buffer_info->skb = skb;
+		buffer_info->dma = pci_map_single(pdev, skb->data,
+						  adapter->rx_ps_bsize0,
+						  PCI_DMA_FROMDEVICE);
+		if (pci_dma_mapping_error(buffer_info->dma)) {
+			dev_err(&pdev->dev, "RX DMA map failed\n");
+			adapter->rx_dma_failed++;
+			/* cleanup skb */
+			dev_kfree_skb_any(skb);
+			buffer_info->skb = NULL;
+			break;
+		}
+
+		rx_desc->read.buffer_addr[0] = cpu_to_le64(buffer_info->dma);
+
+		i++;
+		if (i == rx_ring->count)
+			i = 0;
+		buffer_info = &rx_ring->buffer_info[i];
+	}
+
+no_buffers:
+	if (rx_ring->next_to_use != i) {
+		rx_ring->next_to_use = i;
+
+		if (!(i--))
+			i = (rx_ring->count - 1);
+
+		/* Force memory writes to complete before letting h/w
+		 * know there are new descriptors to fetch.  (Only
+		 * applicable for weak-ordered memory model archs,
+		 * such as IA-64). */
+		wmb();
+		/* Hardware increments by 16 bytes, but packet split
+		 * descriptors are 32 bytes...so we increment tail
+		 * twice as much.
+		 */
+		writel(i<<1, adapter->hw.hw_addr + rx_ring->tail);
+	}
+}
+
+/**
+ * e1000_alloc_rx_buffers_jumbo - Replace used jumbo receive buffers
+ *
+ * @adapter: address of board private structure
+ * @cleaned_count: number of buffers to allocate this pass
+ **/
+static void e1000_alloc_rx_buffers_jumbo(struct e1000_adapter *adapter,
+					 int cleaned_count)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	struct e1000_rx_desc *rx_desc;
+	struct e1000_buffer *buffer_info;
+	struct sk_buff *skb;
+	unsigned int i;
+	unsigned int bufsz = 256 -
+			     16 /*for skb_reserve */ -
+			     NET_IP_ALIGN;
+
+	i = rx_ring->next_to_use;
+	buffer_info = &rx_ring->buffer_info[i];
+
+	while (cleaned_count--) {
+		skb = buffer_info->skb;
+		if (skb) {
+			skb_trim(skb, 0);
+			goto check_page;
+		}
+
+		skb = netdev_alloc_skb(netdev, bufsz);
+		if (!skb) {
+			/* Better luck next round */
+			adapter->alloc_rx_buff_failed++;
+			break;
+		}
+
+		/* Make buffer alignment 2 beyond a 16 byte boundary
+		 * this will result in a 16 byte aligned IP header after
+		 * the 14 byte MAC header is removed
+		 */
+		skb_reserve(skb, NET_IP_ALIGN);
+
+		buffer_info->skb = skb;
+check_page:
+		/* allocate a new page if necessary */
+		if (!buffer_info->page) {
+			buffer_info->page = alloc_page(GFP_ATOMIC);
+			if (!buffer_info->page) {
+				adapter->alloc_rx_buff_failed++;
+				break;
+			}
+		}
+
+		if (!buffer_info->dma)
+			buffer_info->dma = pci_map_page(pdev,
+							buffer_info->page, 0,
+							PAGE_SIZE,
+							PCI_DMA_FROMDEVICE);
+		if (pci_dma_mapping_error(buffer_info->dma)) {
+			dev_err(&adapter->pdev->dev, "RX DMA page map failed\n");
+			adapter->rx_dma_failed++;
+			break;
+		}
+
+		rx_desc = E1000_RX_DESC(*rx_ring, i);
+		rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
+
+		i++;
+		if (i == rx_ring->count)
+			i = 0;
+		buffer_info = &rx_ring->buffer_info[i];
+	}
+
+	if (rx_ring->next_to_use != i) {
+		rx_ring->next_to_use = i;
+		if (i-- == 0)
+			i = (rx_ring->count - 1);
+
+		/* Force memory writes to complete before letting h/w
+		 * know there are new descriptors to fetch.  (Only
+		 * applicable for weak-ordered memory model archs,
+		 * such as IA-64). */
+		wmb();
+		writel(i, adapter->hw.hw_addr + rx_ring->tail);
+	}
+}
+
+/**
+ * e1000_clean_rx_irq - Send received data up the network stack; legacy
+ * @adapter: board private structure
+ *
+ * the return value indicates whether actual cleaning was done, there
+ * is no guarantee that everything was cleaned
+ **/
+static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
+			       int *work_done, int work_to_do)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	struct e1000_rx_desc *rx_desc, *next_rxd;
+	struct e1000_buffer *buffer_info, *next_buffer;
+	u32 length;
+	unsigned int i;
+	int cleaned_count = 0;
+	bool cleaned = 0;
+	unsigned int total_rx_bytes = 0, total_rx_packets = 0;
+
+	i = rx_ring->next_to_clean;
+	rx_desc = E1000_RX_DESC(*rx_ring, i);
+	buffer_info = &rx_ring->buffer_info[i];
+
+	while (rx_desc->status & E1000_RXD_STAT_DD) {
+		struct sk_buff *skb;
+		u8 status;
+
+		if (*work_done >= work_to_do)
+			break;
+		(*work_done)++;
+
+		status = rx_desc->status;
+		skb = buffer_info->skb;
+		buffer_info->skb = NULL;
+
+		prefetch(skb->data - NET_IP_ALIGN);
+
+		i++;
+		if (i == rx_ring->count)
+			i = 0;
+		next_rxd = E1000_RX_DESC(*rx_ring, i);
+		prefetch(next_rxd);
+
+		next_buffer = &rx_ring->buffer_info[i];
+
+		cleaned = 1;
+		cleaned_count++;
+		pci_unmap_single(pdev,
+				 buffer_info->dma,
+				 adapter->rx_buffer_len,
+				 PCI_DMA_FROMDEVICE);
+		buffer_info->dma = 0;
+
+		length = le16_to_cpu(rx_desc->length);
+
+		/* !EOP means multiple descriptors were used to store a single
+		 * packet, also make sure the frame isn't just CRC only */
+		if (!(status & E1000_RXD_STAT_EOP) || (length <= 4)) {
+			/* All receives must fit into a single buffer */
+			ndev_dbg(netdev, "%s: Receive packet consumed "
+				 "multiple buffers\n", netdev->name);
+			/* recycle */
+			buffer_info->skb = skb;
+			goto next_desc;
+		}
+
+		if (rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK) {
+			/* recycle */
+			buffer_info->skb = skb;
+			goto next_desc;
+		}
+
+		/* adjust length to remove Ethernet CRC */
+		length -= 4;
+
+		/* probably a little skewed due to removing CRC */
+		total_rx_bytes += length;
+		total_rx_packets++;
+
+		/* code added for copybreak, this should improve
+		 * performance for small packets with large amounts
+		 * of reassembly being done in the stack */
+		if (length < copybreak) {
+			struct sk_buff *new_skb =
+			    netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
+			if (new_skb) {
+				skb_reserve(new_skb, NET_IP_ALIGN);
+				memcpy(new_skb->data - NET_IP_ALIGN,
+				       skb->data - NET_IP_ALIGN,
+				       length + NET_IP_ALIGN);
+				/* save the skb in buffer_info as good */
+				buffer_info->skb = skb;
+				skb = new_skb;
+			}
+			/* else just continue with the old one */
+		}
+		/* end copybreak code */
+		skb_put(skb, length);
+
+		/* Receive Checksum Offload */
+		e1000_rx_checksum(adapter,
+				  (u32)(status) |
+				  ((u32)(rx_desc->errors) << 24),
+				  le16_to_cpu(rx_desc->csum), skb);
+
+		e1000_receive_skb(adapter, netdev, skb,status,rx_desc->special);
+
+next_desc:
+		rx_desc->status = 0;
+
+		/* return some buffers to hardware, one at a time is too slow */
+		if (cleaned_count >= E1000_RX_BUFFER_WRITE) {
+			adapter->alloc_rx_buf(adapter, cleaned_count);
+			cleaned_count = 0;
+		}
+
+		/* use prefetched values */
+		rx_desc = next_rxd;
+		buffer_info = next_buffer;
+	}
+	rx_ring->next_to_clean = i;
+
+	cleaned_count = e1000_desc_unused(rx_ring);
+	if (cleaned_count)
+		adapter->alloc_rx_buf(adapter, cleaned_count);
+
+	adapter->total_rx_packets += total_rx_packets;
+	adapter->total_rx_bytes += total_rx_bytes;
+	return cleaned;
+}
+
+static void e1000_consume_page(struct e1000_buffer *bi, struct sk_buff *skb,
+			       u16 length)
+{
+	bi->page = NULL;
+	skb->len += length;
+	skb->data_len += length;
+	skb->truesize += length;
+}
+
+static void e1000_put_txbuf(struct e1000_adapter *adapter,
+			     struct e1000_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;
+	}
+	if (buffer_info->skb) {
+		dev_kfree_skb_any(buffer_info->skb);
+		buffer_info->skb = NULL;
+	}
+}
+
+static void e1000_print_tx_hang(struct e1000_adapter *adapter)
+{
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	unsigned int i = tx_ring->next_to_clean;
+	unsigned int eop = tx_ring->buffer_info[i].next_to_watch;
+	struct e1000_tx_desc *eop_desc = E1000_TX_DESC(*tx_ring, eop);
+	struct net_device *netdev = adapter->netdev;
+
+	/* detected Tx unit hang */
+	ndev_err(netdev,
+		 "Detected Tx Unit Hang:\n"
+		 "  TDH                  <%x>\n"
+		 "  TDT                  <%x>\n"
+		 "  next_to_use          <%x>\n"
+		 "  next_to_clean        <%x>\n"
+		 "buffer_info[next_to_clean]:\n"
+		 "  time_stamp           <%lx>\n"
+		 "  next_to_watch        <%x>\n"
+		 "  jiffies              <%lx>\n"
+		 "  next_to_watch.status <%x>\n",
+		 readl(adapter->hw.hw_addr + tx_ring->head),
+		 readl(adapter->hw.hw_addr + tx_ring->tail),
+		 tx_ring->next_to_use,
+		 tx_ring->next_to_clean,
+		 tx_ring->buffer_info[eop].time_stamp,
+		 eop,
+		 jiffies,
+		 eop_desc->upper.fields.status);
+}
+
+/**
+ * e1000_clean_tx_irq - Reclaim resources after transmit completes
+ * @adapter: board private structure
+ *
+ * the return value indicates whether actual cleaning was done, there
+ * is no guarantee that everything was cleaned
+ **/
+static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct e1000_hw *hw = &adapter->hw;
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	struct e1000_tx_desc *tx_desc, *eop_desc;
+	struct e1000_buffer *buffer_info;
+	unsigned int i, eop;
+	unsigned int count = 0;
+	bool cleaned = 0;
+	unsigned int total_tx_bytes = 0, total_tx_packets = 0;
+
+	i = tx_ring->next_to_clean;
+	eop = tx_ring->buffer_info[i].next_to_watch;
+	eop_desc = E1000_TX_DESC(*tx_ring, eop);
+
+	while (eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
+		for (cleaned = 0; !cleaned; ) {
+			tx_desc = E1000_TX_DESC(*tx_ring, i);
+			buffer_info = &tx_ring->buffer_info[i];
+			cleaned = (i == eop);
+
+			if (cleaned) {
+				struct sk_buff *skb = buffer_info->skb;
+				unsigned int segs, bytecount;
+				segs = skb_shinfo(skb)->gso_segs ?: 1;
+				/* multiply data chunks by size of headers */
+				bytecount = ((segs - 1) * skb_headlen(skb)) +
+					    skb->len;
+				total_tx_packets += segs;
+				total_tx_bytes += bytecount;
+			}
+
+			e1000_put_txbuf(adapter, buffer_info);
+			tx_desc->upper.data = 0;
+
+			i++;
+			if (i == tx_ring->count)
+				i = 0;
+		}
+
+		eop = tx_ring->buffer_info[i].next_to_watch;
+		eop_desc = E1000_TX_DESC(*tx_ring, eop);
+#define E1000_TX_WEIGHT 64
+		/* weight of a sort for tx, to avoid endless transmit cleanup */
+		if (count++ == E1000_TX_WEIGHT)
+			break;
+	}
+
+	tx_ring->next_to_clean = i;
+
+#define TX_WAKE_THRESHOLD 32
+	if (cleaned && netif_carrier_ok(netdev) &&
+		     e1000_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD) {
+		/* Make sure that anybody stopping the queue after this
+		 * sees the new next_to_clean.
+		 */
+		smp_mb();
+
+		if (netif_queue_stopped(netdev) &&
+		    !(test_bit(__E1000_DOWN, &adapter->state))) {
+			netif_wake_queue(netdev);
+			++adapter->restart_queue;
+		}
+	}
+
+	if (adapter->detect_tx_hung) {
+		/* Detect a transmit hang in hardware, this serializes the
+		 * check with the clearing of time_stamp and movement of i */
+		adapter->detect_tx_hung = 0;
+		if (tx_ring->buffer_info[eop].dma &&
+		    time_after(jiffies, tx_ring->buffer_info[eop].time_stamp
+			       + (adapter->tx_timeout_factor * HZ))
+		    && !(er32(STATUS) &
+			 E1000_STATUS_TXOFF)) {
+			e1000_print_tx_hang(adapter);
+			netif_stop_queue(netdev);
+		}
+	}
+	adapter->total_tx_bytes += total_tx_bytes;
+	adapter->total_tx_packets += total_tx_packets;
+	return cleaned;
+}
+
+/**
+ * e1000_clean_rx_irq_jumbo - Send received data up the network stack; legacy
+ * @adapter: board private structure
+ *
+ * the return value indicates whether actual cleaning was done, there
+ * is no guarantee that everything was cleaned
+ **/
+static bool e1000_clean_rx_irq_jumbo(struct e1000_adapter *adapter,
+				     int *work_done, int work_to_do)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	struct e1000_rx_desc *rx_desc, *next_rxd;
+	struct e1000_buffer *buffer_info, *next_buffer;
+	u32 length;
+	unsigned int i;
+	int cleaned_count = 0;
+	bool cleaned = 0;
+	unsigned int total_rx_bytes = 0, total_rx_packets = 0;
+
+	i = rx_ring->next_to_clean;
+	rx_desc = E1000_RX_DESC(*rx_ring, i);
+	buffer_info = &rx_ring->buffer_info[i];
+
+	while (rx_desc->status & E1000_RXD_STAT_DD) {
+		struct sk_buff *skb;
+		u8 status;
+
+		if (*work_done >= work_to_do)
+			break;
+		(*work_done)++;
+
+		status = rx_desc->status;
+		skb = buffer_info->skb;
+		buffer_info->skb = NULL;
+
+		i++;
+		if (i == rx_ring->count)
+			i = 0;
+		next_rxd = E1000_RX_DESC(*rx_ring, i);
+		prefetch(next_rxd);
+
+		next_buffer = &rx_ring->buffer_info[i];
+
+		cleaned = 1;
+		cleaned_count++;
+		pci_unmap_page(pdev,
+			       buffer_info->dma,
+			       PAGE_SIZE,
+			       PCI_DMA_FROMDEVICE);
+		buffer_info->dma = 0;
+
+		length = le16_to_cpu(rx_desc->length);
+
+		/* errors is only valid for DD + EOP descriptors */
+		if ((status & E1000_RXD_STAT_EOP) &&
+		    (rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) {
+			/* recycle both page and skb */
+			buffer_info->skb = skb;
+			/* an error means any chain goes out the window too */
+			if (rx_ring->rx_skb_top)
+				dev_kfree_skb(rx_ring->rx_skb_top);
+			rx_ring->rx_skb_top = NULL;
+			goto next_desc;
+		}
+
+#define rxtop rx_ring->rx_skb_top
+		if (!(status & E1000_RXD_STAT_EOP)) {
+			/* this descriptor is only the beginning (or middle) */
+			if (!rxtop) {
+				/* this is the beginning of a chain */
+				rxtop = skb;
+				skb_fill_page_desc(rxtop, 0, buffer_info->page,
+						   0, length);
+			} else {
+				/* this is the middle of a chain */
+				skb_fill_page_desc(rxtop,
+						   skb_shinfo(rxtop)->nr_frags,
+						   buffer_info->page, 0,
+						   length);
+				/* re-use the skb, only consumed the page */
+				buffer_info->skb = skb;
+			}
+			e1000_consume_page(buffer_info, rxtop, length);
+			goto next_desc;
+		} else {
+			if (rxtop) {
+				/* end of the chain */
+				skb_fill_page_desc(rxtop,
+				    skb_shinfo(rxtop)->nr_frags,
+				    buffer_info->page, 0, length);
+				/* re-use the current skb, we only consumed the
+				 * page */
+				buffer_info->skb = skb;
+				skb = rxtop;
+				rxtop = NULL;
+				e1000_consume_page(buffer_info, skb, length);
+			} else {
+				/* no chain, got EOP, this buf is the packet
+				 * copybreak to save the put_page/alloc_page */
+				if (length <= copybreak &&
+				    skb_tailroom(skb) >= length) {
+					u8 *vaddr;
+					vaddr = kmap_atomic(buffer_info->page,
+							   KM_SKB_DATA_SOFTIRQ);
+					memcpy(skb_tail_pointer(skb),
+					       vaddr, length);
+					kunmap_atomic(vaddr,
+						      KM_SKB_DATA_SOFTIRQ);
+					/* re-use the page, so don't erase
+					 * buffer_info->page */
+					skb_put(skb, length);
+				} else {
+					skb_fill_page_desc(skb, 0,
+							   buffer_info->page, 0,
+							   length);
+					e1000_consume_page(buffer_info, skb,
+							   length);
+				}
+			}
+		}
+
+		/* Receive Checksum Offload XXX recompute due to CRC strip? */
+		e1000_rx_checksum(adapter,
+				  (u32)(status) |
+				  ((u32)(rx_desc->errors) << 24),
+				  le16_to_cpu(rx_desc->csum), skb);
+
+		pskb_trim(skb, skb->len - 4);
+
+		/* probably a little skewed due to removing CRC */
+		total_rx_bytes += skb->len;
+		total_rx_packets++;
+
+		/* eth type trans needs skb->data to point to something */
+		if (!pskb_may_pull(skb, ETH_HLEN)) {
+			ndev_err(netdev, "__pskb_pull_tail failed.\n");
+			dev_kfree_skb(skb);
+			goto next_desc;
+		}
+
+		e1000_receive_skb(adapter, netdev, skb,status,rx_desc->special);
+
+next_desc:
+		rx_desc->status = 0;
+
+		/* return some buffers to hardware, one at a time is too slow */
+		if (cleaned_count >= E1000_RX_BUFFER_WRITE) {
+			adapter->alloc_rx_buf(adapter, cleaned_count);
+			cleaned_count = 0;
+		}
+
+		/* use prefetched values */
+		rx_desc = next_rxd;
+		buffer_info = next_buffer;
+	}
+	rx_ring->next_to_clean = i;
+
+	cleaned_count = e1000_desc_unused(rx_ring);
+	if (cleaned_count)
+		adapter->alloc_rx_buf(adapter, cleaned_count);
+
+	adapter->total_rx_packets += total_rx_packets;
+	adapter->total_rx_bytes += total_rx_bytes;
+	return cleaned;
+}
+
+/**
+ * e1000_clean_rx_irq_ps - Send received data up the network stack; packet split
+ * @adapter: board private structure
+ *
+ * the return value indicates whether actual cleaning was done, there
+ * is no guarantee that everything was cleaned
+ **/
+static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
+				  int *work_done, int work_to_do)
+{
+	union e1000_rx_desc_packet_split *rx_desc, *next_rxd;
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	struct e1000_buffer *buffer_info, *next_buffer;
+	struct e1000_ps_page *ps_page;
+	struct sk_buff *skb;
+	unsigned int i, j;
+	u32 length, staterr;
+	int cleaned_count = 0;
+	bool cleaned = 0;
+	unsigned int total_rx_bytes = 0, total_rx_packets = 0;
+
+	i = rx_ring->next_to_clean;
+	rx_desc = E1000_RX_DESC_PS(*rx_ring, i);
+	staterr = le32_to_cpu(rx_desc->wb.middle.status_error);
+	buffer_info = &rx_ring->buffer_info[i];
+
+	while (staterr & E1000_RXD_STAT_DD) {
+		if (*work_done >= work_to_do)
+			break;
+		(*work_done)++;
+		skb = buffer_info->skb;
+
+		/* in the packet split case this is header only */
+		prefetch(skb->data - NET_IP_ALIGN);
+
+		i++;
+		if (i == rx_ring->count)
+			i = 0;
+		next_rxd = E1000_RX_DESC_PS(*rx_ring, i);
+		prefetch(next_rxd);
+
+		next_buffer = &rx_ring->buffer_info[i];
+
+		cleaned = 1;
+		cleaned_count++;
+		pci_unmap_single(pdev, buffer_info->dma,
+				 adapter->rx_ps_bsize0,
+				 PCI_DMA_FROMDEVICE);
+		buffer_info->dma = 0;
+
+		if (!(staterr & E1000_RXD_STAT_EOP)) {
+			ndev_dbg(netdev, "%s: Packet Split buffers didn't pick "
+				 "up the full packet\n", netdev->name);
+			dev_kfree_skb_irq(skb);
+			goto next_desc;
+		}
+
+		if (staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) {
+			dev_kfree_skb_irq(skb);
+			goto next_desc;
+		}
+
+		length = le16_to_cpu(rx_desc->wb.middle.length0);
+
+		if (!length) {
+			ndev_dbg(netdev, "%s: Last part of the packet spanning"
+				 " multiple descriptors\n", netdev->name);
+			dev_kfree_skb_irq(skb);
+			goto next_desc;
+		}
+
+		/* Good Receive */
+		skb_put(skb, length);
+
+		{
+		/* this looks ugly, but it seems compiler issues make it
+		   more efficient than reusing j */
+		int l1 = le16_to_cpu(rx_desc->wb.upper.length[0]);
+
+		/* page alloc/put takes too long and effects small packet
+		 * throughput, so unsplit small packets and save the alloc/put*/
+		if (l1 && (l1 <= copybreak) &&
+		    ((length + l1) <= adapter->rx_ps_bsize0)) {
+			u8 *vaddr;
+
+			ps_page = &rx_ring->ps_pages[i * PS_PAGE_BUFFERS];
+
+			/* there is no documentation about how to call
+			 * kmap_atomic, so we can't hold the mapping
+			 * very long */
+			pci_dma_sync_single_for_cpu(pdev, ps_page->dma,
+				PAGE_SIZE, PCI_DMA_FROMDEVICE);
+			vaddr = kmap_atomic(ps_page->page, KM_SKB_DATA_SOFTIRQ);
+			memcpy(skb_tail_pointer(skb), vaddr, l1);
+			kunmap_atomic(vaddr, KM_SKB_DATA_SOFTIRQ);
+			pci_dma_sync_single_for_device(pdev, ps_page->dma,
+				PAGE_SIZE, PCI_DMA_FROMDEVICE);
+			/* remove the CRC */
+			l1 -= 4;
+			skb_put(skb, l1);
+			goto copydone;
+		} /* if */
+		}
+
+		for (j = 0; j < PS_PAGE_BUFFERS; j++) {
+			length = le16_to_cpu(rx_desc->wb.upper.length[j]);
+			if (!length)
+				break;
+
+			ps_page = &rx_ring->ps_pages[(i * PS_PAGE_BUFFERS) + j];
+			pci_unmap_page(pdev, ps_page->dma, PAGE_SIZE,
+				       PCI_DMA_FROMDEVICE);
+			ps_page->dma = 0;
+			skb_fill_page_desc(skb, j, ps_page->page, 0, length);
+			ps_page->page = NULL;
+			skb->len += length;
+			skb->data_len += length;
+			skb->truesize += length;
+		}
+
+		/* strip the ethernet crc, problem is we're using pages now so
+		 * this whole operation can get a little cpu intensive */
+		pskb_trim(skb, skb->len - 4);
+
+copydone:
+		total_rx_bytes += skb->len;
+		total_rx_packets++;
+
+		e1000_rx_checksum(adapter, staterr, le16_to_cpu(
+			rx_desc->wb.lower.hi_dword.csum_ip.csum), skb);
+
+		if (rx_desc->wb.upper.header_status &
+			   cpu_to_le16(E1000_RXDPS_HDRSTAT_HDRSP))
+			adapter->rx_hdr_split++;
+
+		e1000_receive_skb(adapter, netdev, skb,
+				  staterr, rx_desc->wb.middle.vlan);
+
+next_desc:
+		rx_desc->wb.middle.status_error &= cpu_to_le32(~0xFF);
+		buffer_info->skb = NULL;
+
+		/* return some buffers to hardware, one at a time is too slow */
+		if (cleaned_count >= E1000_RX_BUFFER_WRITE) {
+			adapter->alloc_rx_buf(adapter, cleaned_count);
+			cleaned_count = 0;
+		}
+
+		/* use prefetched values */
+		rx_desc = next_rxd;
+		buffer_info = next_buffer;
+
+		staterr = le32_to_cpu(rx_desc->wb.middle.status_error);
+	}
+	rx_ring->next_to_clean = i;
+
+	cleaned_count = e1000_desc_unused(rx_ring);
+	if (cleaned_count)
+		adapter->alloc_rx_buf(adapter, cleaned_count);
+
+	adapter->total_rx_packets += total_rx_packets;
+	adapter->total_rx_bytes += total_rx_bytes;
+	return cleaned;
+}
+
+/**
+ * e1000_clean_rx_ring - Free Rx Buffers per Queue
+ * @adapter: board private structure
+ **/
+static void e1000_clean_rx_ring(struct e1000_adapter *adapter)
+{
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	struct e1000_buffer *buffer_info;
+	struct e1000_ps_page *ps_page;
+	struct pci_dev *pdev = adapter->pdev;
+	unsigned long size;
+	unsigned int i, j;
+
+	/* Free all the Rx ring sk_buffs */
+	for (i = 0; i < rx_ring->count; i++) {
+		buffer_info = &rx_ring->buffer_info[i];
+		if (buffer_info->dma) {
+			if (adapter->clean_rx == e1000_clean_rx_irq)
+				pci_unmap_single(pdev, buffer_info->dma,
+						 adapter->rx_buffer_len,
+						 PCI_DMA_FROMDEVICE);
+			else if (adapter->clean_rx == e1000_clean_rx_irq_jumbo)
+				pci_unmap_page(pdev, buffer_info->dma,
+					       PAGE_SIZE, PCI_DMA_FROMDEVICE);
+			else if (adapter->clean_rx == e1000_clean_rx_irq_ps)
+				pci_unmap_single(pdev, buffer_info->dma,
+						 adapter->rx_ps_bsize0,
+						 PCI_DMA_FROMDEVICE);
+			buffer_info->dma = 0;
+		}
+
+		if (buffer_info->page) {
+			put_page(buffer_info->page);
+			buffer_info->page = NULL;
+		}
+
+		if (buffer_info->skb) {
+			dev_kfree_skb(buffer_info->skb);
+			buffer_info->skb = NULL;
+		}
+
+		for (j = 0; j < PS_PAGE_BUFFERS; j++) {
+			ps_page = &rx_ring->ps_pages[(i * PS_PAGE_BUFFERS)
+						     + j];
+			if (!ps_page->page)
+				break;
+			pci_unmap_page(pdev, ps_page->dma, PAGE_SIZE,
+				       PCI_DMA_FROMDEVICE);
+			ps_page->dma = 0;
+			put_page(ps_page->page);
+			ps_page->page = NULL;
+		}
+	}
+
+	/* there also may be some cached data from a chained receive */
+	if (rx_ring->rx_skb_top) {
+		dev_kfree_skb(rx_ring->rx_skb_top);
+		rx_ring->rx_skb_top = NULL;
+	}
+
+	size = sizeof(struct e1000_buffer) * rx_ring->count;
+	memset(rx_ring->buffer_info, 0, size);
+	size = sizeof(struct e1000_ps_page)
+	       * (rx_ring->count * PS_PAGE_BUFFERS);
+	memset(rx_ring->ps_pages, 0, size);
+
+	/* Zero out the descriptor ring */
+	memset(rx_ring->desc, 0, rx_ring->size);
+
+	rx_ring->next_to_clean = 0;
+	rx_ring->next_to_use = 0;
+
+	writel(0, adapter->hw.hw_addr + rx_ring->head);
+	writel(0, adapter->hw.hw_addr + rx_ring->tail);
+}
+
+/**
+ * e1000_intr_msi - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+static irqreturn_t e1000_intr_msi(int irq, void *data)
+{
+	struct net_device *netdev = data;
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	u32 icr = er32(ICR);
+
+	/* read ICR disables interrupts using IAM, so keep up with our
+	 * enable/disable accounting */
+	atomic_inc(&adapter->irq_sem);
+
+	if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
+		hw->mac.get_link_status = 1;
+		/* ICH8 workaround-- Call gig speed drop workaround on cable
+		 * disconnect (LSC) before accessing any PHY registers */
+		if ((adapter->flags & FLAG_LSC_GIG_SPEED_DROP) &&
+		    (!(er32(STATUS) & E1000_STATUS_LU)))
+			e1000e_gig_downshift_workaround_ich8lan(hw);
+
+		/* 80003ES2LAN workaround-- For packet buffer work-around on
+		 * link down event; disable receives here in the ISR and reset
+		 * adapter in watchdog */
+		if (netif_carrier_ok(netdev) &&
+		    adapter->flags & FLAG_RX_NEEDS_RESTART) {
+			/* disable receives */
+			u32 rctl = er32(RCTL);
+			ew32(RCTL, rctl & ~E1000_RCTL_EN);
+		}
+		/* guard against interrupt when we're going down */
+		if (!test_bit(__E1000_DOWN, &adapter->state))
+			mod_timer(&adapter->watchdog_timer, jiffies + 1);
+	}
+
+	if (netif_rx_schedule_prep(netdev, &adapter->napi)) {
+		adapter->total_tx_bytes = 0;
+		adapter->total_tx_packets = 0;
+		adapter->total_rx_bytes = 0;
+		adapter->total_rx_packets = 0;
+		__netif_rx_schedule(netdev, &adapter->napi);
+	} else {
+		atomic_dec(&adapter->irq_sem);
+	}
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * e1000_intr - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+static irqreturn_t e1000_intr(int irq, void *data)
+{
+	struct net_device *netdev = data;
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+
+	u32 rctl, icr = er32(ICR);
+	if (!icr)
+		return IRQ_NONE;  /* Not our interrupt */
+
+	/* IMS will not auto-mask if INT_ASSERTED is not set, and if it is
+	 * not set, then the adapter didn't send an interrupt */
+	if (!(icr & E1000_ICR_INT_ASSERTED))
+		return IRQ_NONE;
+
+	/* Interrupt Auto-Mask...upon reading ICR,
+	 * interrupts are masked.  No need for the
+	 * IMC write, but it does mean we should
+	 * account for it ASAP. */
+	atomic_inc(&adapter->irq_sem);
+
+	if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
+		hw->mac.get_link_status = 1;
+		/* ICH8 workaround-- Call gig speed drop workaround on cable
+		 * disconnect (LSC) before accessing any PHY registers */
+		if ((adapter->flags & FLAG_LSC_GIG_SPEED_DROP) &&
+		    (!(er32(STATUS) & E1000_STATUS_LU)))
+			e1000e_gig_downshift_workaround_ich8lan(hw);
+
+		/* 80003ES2LAN workaround--
+		 * For packet buffer work-around on link down event;
+		 * disable receives here in the ISR and
+		 * reset adapter in watchdog
+		 */
+		if (netif_carrier_ok(netdev) &&
+		    (adapter->flags & FLAG_RX_NEEDS_RESTART)) {
+			/* disable receives */
+			rctl = er32(RCTL);
+			ew32(RCTL, rctl & ~E1000_RCTL_EN);
+		}
+		/* guard against interrupt when we're going down */
+		if (!test_bit(__E1000_DOWN, &adapter->state))
+			mod_timer(&adapter->watchdog_timer, jiffies + 1);
+	}
+
+	if (netif_rx_schedule_prep(netdev, &adapter->napi)) {
+		adapter->total_tx_bytes = 0;
+		adapter->total_tx_packets = 0;
+		adapter->total_rx_bytes = 0;
+		adapter->total_rx_packets = 0;
+		__netif_rx_schedule(netdev, &adapter->napi);
+	} else {
+		atomic_dec(&adapter->irq_sem);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int e1000_request_irq(struct e1000_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	void (*handler) = &e1000_intr;
+	int irq_flags = IRQF_SHARED;
+	int err;
+
+	err = pci_enable_msi(adapter->pdev);
+	if (err) {
+		ndev_warn(netdev,
+		 "Unable to allocate MSI interrupt Error: %d\n", err);
+	} else {
+		adapter->flags |= FLAG_MSI_ENABLED;
+		handler = &e1000_intr_msi;
+		irq_flags = 0;
+	}
+
+	err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
+			  netdev);
+	if (err) {
+		if (adapter->flags & FLAG_MSI_ENABLED)
+			pci_disable_msi(adapter->pdev);
+		ndev_err(netdev,
+		       "Unable to allocate interrupt Error: %d\n", err);
+	}
+
+	return err;
+}
+
+static void e1000_free_irq(struct e1000_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+
+	free_irq(adapter->pdev->irq, netdev);
+	if (adapter->flags & FLAG_MSI_ENABLED) {
+		pci_disable_msi(adapter->pdev);
+		adapter->flags &= ~FLAG_MSI_ENABLED;
+	}
+}
+
+/**
+ * e1000_irq_disable - Mask off interrupt generation on the NIC
+ **/
+static void e1000_irq_disable(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+
+	atomic_inc(&adapter->irq_sem);
+	ew32(IMC, ~0);
+	e1e_flush();
+	synchronize_irq(adapter->pdev->irq);
+}
+
+/**
+ * e1000_irq_enable - Enable default interrupt generation settings
+ **/
+static void e1000_irq_enable(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+
+	if (atomic_dec_and_test(&adapter->irq_sem)) {
+		ew32(IMS, IMS_ENABLE_MASK);
+		e1e_flush();
+	}
+}
+
+/**
+ * e1000_get_hw_control - get control of the h/w from f/w
+ * @adapter: address of board private structure
+ *
+ * e1000_get_hw_control sets {CTRL_EXT|FWSM}:DRV_LOAD bit.
+ * For ASF and Pass Through versions of f/w this means that
+ * the driver is loaded. For AMT version (only with 82573)
+ * of the f/w this means that the network i/f is open.
+ **/
+static void e1000_get_hw_control(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 ctrl_ext;
+	u32 swsm;
+
+	/* Let firmware know the driver has taken over */
+	if (adapter->flags & FLAG_HAS_SWSM_ON_LOAD) {
+		swsm = er32(SWSM);
+		ew32(SWSM, swsm | E1000_SWSM_DRV_LOAD);
+	} else if (adapter->flags & FLAG_HAS_CTRLEXT_ON_LOAD) {
+		ctrl_ext = er32(CTRL_EXT);
+		ew32(CTRL_EXT,
+				ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
+	}
+}
+
+/**
+ * e1000_release_hw_control - release control of the h/w to f/w
+ * @adapter: address of board private structure
+ *
+ * e1000_release_hw_control resets {CTRL_EXT|FWSM}:DRV_LOAD bit.
+ * For ASF and Pass Through versions of f/w this means that the
+ * driver is no longer loaded. For AMT version (only with 82573) i
+ * of the f/w this means that the network i/f is closed.
+ *
+ **/
+static void e1000_release_hw_control(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 ctrl_ext;
+	u32 swsm;
+
+	/* Let firmware taken over control of h/w */
+	if (adapter->flags & FLAG_HAS_SWSM_ON_LOAD) {
+		swsm = er32(SWSM);
+		ew32(SWSM, swsm & ~E1000_SWSM_DRV_LOAD);
+	} else if (adapter->flags & FLAG_HAS_CTRLEXT_ON_LOAD) {
+		ctrl_ext = er32(CTRL_EXT);
+		ew32(CTRL_EXT,
+				ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
+	}
+}
+
+static void e1000_release_manageability(struct e1000_adapter *adapter)
+{
+	if (adapter->flags & FLAG_MNG_PT_ENABLED) {
+		struct e1000_hw *hw = &adapter->hw;
+
+		u32 manc = er32(MANC);
+
+		/* re-enable hardware interception of ARP */
+		manc |= E1000_MANC_ARP_EN;
+		manc &= ~E1000_MANC_EN_MNG2HOST;
+
+		/* don't explicitly have to mess with MANC2H since
+		 * MANC has an enable disable that gates MANC2H */
+		ew32(MANC, manc);
+	}
+}
+
+/**
+ * @e1000_alloc_ring - allocate memory for a ring structure
+ **/
+static int e1000_alloc_ring_dma(struct e1000_adapter *adapter,
+				struct e1000_ring *ring)
+{
+	struct pci_dev *pdev = adapter->pdev;
+
+	ring->desc = dma_alloc_coherent(&pdev->dev, ring->size, &ring->dma,
+					GFP_KERNEL);
+	if (!ring->desc)
+		return -ENOMEM;
+
+	return 0;
+}
+
+/**
+ * e1000e_setup_tx_resources - allocate Tx resources (Descriptors)
+ * @adapter: board private structure
+ *
+ * Return 0 on success, negative on failure
+ **/
+int e1000e_setup_tx_resources(struct e1000_adapter *adapter)
+{
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	int err = -ENOMEM, size;
+
+	size = sizeof(struct e1000_buffer) * tx_ring->count;
+	tx_ring->buffer_info = vmalloc(size);
+	if (!tx_ring->buffer_info)
+		goto err;
+	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 = ALIGN(tx_ring->size, 4096);
+
+	err = e1000_alloc_ring_dma(adapter, tx_ring);
+	if (err)
+		goto err;
+
+	tx_ring->next_to_use = 0;
+	tx_ring->next_to_clean = 0;
+	spin_lock_init(&adapter->tx_queue_lock);
+
+	return 0;
+err:
+	vfree(tx_ring->buffer_info);
+	ndev_err(adapter->netdev,
+	"Unable to allocate memory for the transmit descriptor ring\n");
+	return err;
+}
+
+/**
+ * e1000e_setup_rx_resources - allocate Rx resources (Descriptors)
+ * @adapter: board private structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+int e1000e_setup_rx_resources(struct e1000_adapter *adapter)
+{
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	int size, desc_len, err = -ENOMEM;
+
+	size = sizeof(struct e1000_buffer) * rx_ring->count;
+	rx_ring->buffer_info = vmalloc(size);
+	if (!rx_ring->buffer_info)
+		goto err;
+	memset(rx_ring->buffer_info, 0, size);
+
+	rx_ring->ps_pages = kcalloc(rx_ring->count * PS_PAGE_BUFFERS,
+				    sizeof(struct e1000_ps_page),
+				    GFP_KERNEL);
+	if (!rx_ring->ps_pages)
+		goto err;
+
+	desc_len = sizeof(union e1000_rx_desc_packet_split);
+
+	/* Round up to nearest 4K */
+	rx_ring->size = rx_ring->count * desc_len;
+	rx_ring->size = ALIGN(rx_ring->size, 4096);
+
+	err = e1000_alloc_ring_dma(adapter, rx_ring);
+	if (err)
+		goto err;
+
+	rx_ring->next_to_clean = 0;
+	rx_ring->next_to_use = 0;
+	rx_ring->rx_skb_top = NULL;
+
+	return 0;
+err:
+	vfree(rx_ring->buffer_info);
+	kfree(rx_ring->ps_pages);
+	ndev_err(adapter->netdev,
+	"Unable to allocate memory for the transmit descriptor ring\n");
+	return err;
+}
+
+/**
+ * e1000_clean_tx_ring - Free Tx Buffers
+ * @adapter: board private structure
+ **/
+static void e1000_clean_tx_ring(struct e1000_adapter *adapter)
+{
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	struct e1000_buffer *buffer_info;
+	unsigned long size;
+	unsigned int i;
+
+	for (i = 0; i < tx_ring->count; i++) {
+		buffer_info = &tx_ring->buffer_info[i];
+		e1000_put_txbuf(adapter, buffer_info);
+	}
+
+	size = sizeof(struct e1000_buffer) * tx_ring->count;
+	memset(tx_ring->buffer_info, 0, size);
+
+	memset(tx_ring->desc, 0, tx_ring->size);
+
+	tx_ring->next_to_use = 0;
+	tx_ring->next_to_clean = 0;
+
+	writel(0, adapter->hw.hw_addr + tx_ring->head);
+	writel(0, adapter->hw.hw_addr + tx_ring->tail);
+}
+
+/**
+ * e1000e_free_tx_resources - Free Tx Resources per Queue
+ * @adapter: board private structure
+ *
+ * Free all transmit software resources
+ **/
+void e1000e_free_tx_resources(struct e1000_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+
+	e1000_clean_tx_ring(adapter);
+
+	vfree(tx_ring->buffer_info);
+	tx_ring->buffer_info = NULL;
+
+	dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
+			  tx_ring->dma);
+	tx_ring->desc = NULL;
+}
+
+/**
+ * e1000e_free_rx_resources - Free Rx Resources
+ * @adapter: board private structure
+ *
+ * Free all receive software resources
+ **/
+
+void e1000e_free_rx_resources(struct e1000_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+
+	e1000_clean_rx_ring(adapter);
+
+	vfree(rx_ring->buffer_info);
+	rx_ring->buffer_info = NULL;
+
+	kfree(rx_ring->ps_pages);
+	rx_ring->ps_pages = NULL;
+
+	dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
+			  rx_ring->dma);
+	rx_ring->desc = NULL;
+}
+
+/**
+ * e1000_update_itr - update the dynamic ITR value based on statistics
+ *      Stores a new ITR value based on packets and byte
+ *      counts during the last interrupt.  The advantage of per interrupt
+ *      computation is faster updates and more accurate ITR for the current
+ *      traffic pattern.  Constants in this function were computed
+ *      based on theoretical maximum wire speed and thresholds were set based
+ *      on testing data as well as attempting to minimize response time
+ *      while increasing bulk throughput.
+ *      this functionality is controlled by the InterruptThrottleRate module
+ *      parameter (see e1000_param.c)
+ * @adapter: pointer to adapter
+ * @itr_setting: current adapter->itr
+ * @packets: the number of packets during this measurement interval
+ * @bytes: the number of bytes during this measurement interval
+ **/
+static unsigned int e1000_update_itr(struct e1000_adapter *adapter,
+				     u16 itr_setting, int packets,
+				     int bytes)
+{
+	unsigned int retval = itr_setting;
+
+	if (packets == 0)
+		goto update_itr_done;
+
+	switch (itr_setting) {
+	case lowest_latency:
+		/* handle TSO and jumbo frames */
+		if (bytes/packets > 8000)
+			retval = bulk_latency;
+		else if ((packets < 5) && (bytes > 512)) {
+			retval = low_latency;
+		}
+		break;
+	case low_latency:  /* 50 usec aka 20000 ints/s */
+		if (bytes > 10000) {
+			/* this if handles the TSO accounting */
+			if (bytes/packets > 8000) {
+				retval = bulk_latency;
+			} else if ((packets < 10) || ((bytes/packets) > 1200)) {
+				retval = bulk_latency;
+			} else if ((packets > 35)) {
+				retval = lowest_latency;
+			}
+		} else if (bytes/packets > 2000) {
+			retval = bulk_latency;
+		} else if (packets <= 2 && bytes < 512) {
+			retval = lowest_latency;
+		}
+		break;
+	case bulk_latency: /* 250 usec aka 4000 ints/s */
+		if (bytes > 25000) {
+			if (packets > 35) {
+				retval = low_latency;
+			}
+		} else if (bytes < 6000) {
+			retval = low_latency;
+		}
+		break;
+	}
+
+update_itr_done:
+	return retval;
+}
+
+static void e1000_set_itr(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u16 current_itr;
+	u32 new_itr = adapter->itr;
+
+	/* for non-gigabit speeds, just fix the interrupt rate at 4000 */
+	if (adapter->link_speed != SPEED_1000) {
+		current_itr = 0;
+		new_itr = 4000;
+		goto set_itr_now;
+	}
+
+	adapter->tx_itr = e1000_update_itr(adapter,
+				    adapter->tx_itr,
+				    adapter->total_tx_packets,
+				    adapter->total_tx_bytes);
+	/* conservative mode (itr 3) eliminates the lowest_latency setting */
+	if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency)
+		adapter->tx_itr = low_latency;
+
+	adapter->rx_itr = e1000_update_itr(adapter,
+				    adapter->rx_itr,
+				    adapter->total_rx_packets,
+				    adapter->total_rx_bytes);
+	/* conservative mode (itr 3) eliminates the lowest_latency setting */
+	if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency)
+		adapter->rx_itr = low_latency;
+
+	current_itr = max(adapter->rx_itr, adapter->tx_itr);
+
+	switch (current_itr) {
+	/* counts and packets in update_itr are dependent on these numbers */
+	case lowest_latency:
+		new_itr = 70000;
+		break;
+	case low_latency:
+		new_itr = 20000; /* aka hwitr = ~200 */
+		break;
+	case bulk_latency:
+		new_itr = 4000;
+		break;
+	default:
+		break;
+	}
+
+set_itr_now:
+	if (new_itr != adapter->itr) {
+		/* this attempts to bias the interrupt rate towards Bulk
+		 * by adding intermediate steps when interrupt rate is
+		 * increasing */
+		new_itr = new_itr > adapter->itr ?
+			     min(adapter->itr + (new_itr >> 2), new_itr) :
+			     new_itr;
+		adapter->itr = new_itr;
+		ew32(ITR, 1000000000 / (new_itr * 256));
+	}
+}
+
+/**
+ * e1000_clean - NAPI Rx polling callback
+ * @adapter: board private structure
+ **/
+static int e1000_clean(struct napi_struct *napi, int budget)
+{
+	struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi);
+	struct net_device *poll_dev = adapter->netdev;
+	int tx_cleaned = 0, work_done = 0;
+
+	/* Must NOT use netdev_priv macro here. */
+	adapter = poll_dev->priv;
+
+	/* Keep link state information with original netdev */
+	if (!netif_carrier_ok(poll_dev))
+		goto quit_polling;
+
+	/* e1000_clean is called per-cpu.  This lock protects
+	 * tx_ring from being cleaned by multiple cpus
+	 * simultaneously.  A failure obtaining the lock means
+	 * tx_ring is currently being cleaned anyway. */
+	if (spin_trylock(&adapter->tx_queue_lock)) {
+		tx_cleaned = e1000_clean_tx_irq(adapter);
+		spin_unlock(&adapter->tx_queue_lock);
+	}
+
+	adapter->clean_rx(adapter, &work_done, budget);
+
+	/* If no Tx and not enough Rx work done, exit the polling mode */
+	if ((!tx_cleaned && (work_done < budget)) ||
+	   !netif_running(poll_dev)) {
+quit_polling:
+		if (adapter->itr_setting & 3)
+			e1000_set_itr(adapter);
+		netif_rx_complete(poll_dev, napi);
+		e1000_irq_enable(adapter);
+	}
+
+	return work_done;
+}
+
+static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	u32 vfta, index;
+
+	/* don't update vlan cookie if already programmed */
+	if ((adapter->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 = E1000_READ_REG_ARRAY(hw, E1000_VFTA, index);
+	vfta |= (1 << (vid & 0x1F));
+	e1000e_write_vfta(hw, index, vfta);
+}
+
+static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	u32 vfta, index;
+
+	e1000_irq_disable(adapter);
+	vlan_group_set_device(adapter->vlgrp, vid, NULL);
+	e1000_irq_enable(adapter);
+
+	if ((adapter->hw.mng_cookie.status &
+	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
+	    (vid == adapter->mng_vlan_id)) {
+		/* release control to f/w */
+		e1000_release_hw_control(adapter);
+		return;
+	}
+
+	/* remove VID from filter table */
+	index = (vid >> 5) & 0x7F;
+	vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, index);
+	vfta &= ~(1 << (vid & 0x1F));
+	e1000e_write_vfta(hw, index, vfta);
+}
+
+static void e1000_update_mng_vlan(struct e1000_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	u16 vid = adapter->hw.mng_cookie.vlan_id;
+	u16 old_vid = adapter->mng_vlan_id;
+
+	if (!adapter->vlgrp)
+		return;
+
+	if (!vlan_group_get_device(adapter->vlgrp, vid)) {
+		adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+		if (adapter->hw.mng_cookie.status &
+			E1000_MNG_DHCP_COOKIE_STATUS_VLAN) {
+			e1000_vlan_rx_add_vid(netdev, vid);
+			adapter->mng_vlan_id = vid;
+		}
+
+		if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
+				(vid != old_vid) &&
+		    !vlan_group_get_device(adapter->vlgrp, old_vid))
+			e1000_vlan_rx_kill_vid(netdev, old_vid);
+	} else {
+		adapter->mng_vlan_id = vid;
+	}
+}
+
+
+static void e1000_vlan_rx_register(struct net_device *netdev,
+				   struct vlan_group *grp)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	u32 ctrl, rctl;
+
+	e1000_irq_disable(adapter);
+	adapter->vlgrp = grp;
+
+	if (grp) {
+		/* enable VLAN tag insert/strip */
+		ctrl = er32(CTRL);
+		ctrl |= E1000_CTRL_VME;
+		ew32(CTRL, ctrl);
+
+		if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
+			/* enable VLAN receive filtering */
+			rctl = er32(RCTL);
+			rctl |= E1000_RCTL_VFE;
+			rctl &= ~E1000_RCTL_CFIEN;
+			ew32(RCTL, rctl);
+			e1000_update_mng_vlan(adapter);
+		}
+	} else {
+		/* disable VLAN tag insert/strip */
+		ctrl = er32(CTRL);
+		ctrl &= ~E1000_CTRL_VME;
+		ew32(CTRL, ctrl);
+
+		if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
+			/* disable VLAN filtering */
+			rctl = er32(RCTL);
+			rctl &= ~E1000_RCTL_VFE;
+			ew32(RCTL, rctl);
+			if (adapter->mng_vlan_id !=
+			    (u16)E1000_MNG_VLAN_NONE) {
+				e1000_vlan_rx_kill_vid(netdev,
+						       adapter->mng_vlan_id);
+				adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+			}
+		}
+	}
+
+	e1000_irq_enable(adapter);
+}
+
+static void e1000_restore_vlan(struct e1000_adapter *adapter)
+{
+	u16 vid;
+
+	e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp);
+
+	if (!adapter->vlgrp)
+		return;
+
+	for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
+		if (!vlan_group_get_device(adapter->vlgrp, vid))
+			continue;
+		e1000_vlan_rx_add_vid(adapter->netdev, vid);
+	}
+}
+
+static void e1000_init_manageability(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 manc, manc2h;
+
+	if (!(adapter->flags & FLAG_MNG_PT_ENABLED))
+		return;
+
+	manc = er32(MANC);
+
+	/* disable hardware interception of ARP */
+	manc &= ~(E1000_MANC_ARP_EN);
+
+	/* enable receiving management packets to the host. this will probably
+	 * generate destination unreachable messages from the host OS, but
+	 * the packets will be handled on SMBUS */
+	manc |= E1000_MANC_EN_MNG2HOST;
+	manc2h = er32(MANC2H);
+#define E1000_MNG2HOST_PORT_623 (1 << 5)
+#define E1000_MNG2HOST_PORT_664 (1 << 6)
+	manc2h |= E1000_MNG2HOST_PORT_623;
+	manc2h |= E1000_MNG2HOST_PORT_664;
+	ew32(MANC2H, manc2h);
+	ew32(MANC, manc);
+}
+
+/**
+ * e1000_configure_tx - Configure 8254x Transmit Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Tx unit of the MAC after a reset.
+ **/
+static void e1000_configure_tx(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	u64 tdba;
+	u32 tdlen, tctl, tipg, tarc;
+	u32 ipgr1, ipgr2;
+
+	/* Setup the HW Tx Head and Tail descriptor pointers */
+	tdba = tx_ring->dma;
+	tdlen = tx_ring->count * sizeof(struct e1000_tx_desc);
+	ew32(TDBAL, (tdba & DMA_32BIT_MASK));
+	ew32(TDBAH, (tdba >> 32));
+	ew32(TDLEN, tdlen);
+	ew32(TDH, 0);
+	ew32(TDT, 0);
+	tx_ring->head = E1000_TDH;
+	tx_ring->tail = E1000_TDT;
+
+	/* Set the default values for the Tx Inter Packet Gap timer */
+	tipg = DEFAULT_82543_TIPG_IPGT_COPPER;          /*  8  */
+	ipgr1 = DEFAULT_82543_TIPG_IPGR1;               /*  8  */
+	ipgr2 = DEFAULT_82543_TIPG_IPGR2;               /*  6  */
+
+	if (adapter->flags & FLAG_TIPG_MEDIUM_FOR_80003ESLAN)
+		ipgr2 = DEFAULT_80003ES2LAN_TIPG_IPGR2; /*  7  */
+
+	tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT;
+	tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT;
+	ew32(TIPG, tipg);
+
+	/* Set the Tx Interrupt Delay register */
+	ew32(TIDV, adapter->tx_int_delay);
+	/* tx irq moderation */
+	ew32(TADV, adapter->tx_abs_int_delay);
+
+	/* Program the Transmit Control Register */
+	tctl = er32(TCTL);
+	tctl &= ~E1000_TCTL_CT;
+	tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
+		(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
+
+	if (adapter->flags & FLAG_TARC_SPEED_MODE_BIT) {
+		tarc = er32(TARC0);
+		/* set the speed mode bit, we'll clear it if we're not at
+		 * gigabit link later */
+#define SPEED_MODE_BIT (1 << 21)
+		tarc |= SPEED_MODE_BIT;
+		ew32(TARC0, tarc);
+	}
+
+	/* errata: program both queues to unweighted RR */
+	if (adapter->flags & FLAG_TARC_SET_BIT_ZERO) {
+		tarc = er32(TARC0);
+		tarc |= 1;
+		ew32(TARC0, tarc);
+		tarc = er32(TARC1);
+		tarc |= 1;
+		ew32(TARC1, tarc);
+	}
+
+	e1000e_config_collision_dist(hw);
+
+	/* Setup Transmit Descriptor Settings for eop descriptor */
+	adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS;
+
+	/* only set IDE if we are delaying interrupts using the timers */
+	if (adapter->tx_int_delay)
+		adapter->txd_cmd |= E1000_TXD_CMD_IDE;
+
+	/* enable Report Status bit */
+	adapter->txd_cmd |= E1000_TXD_CMD_RS;
+
+	ew32(TCTL, tctl);
+
+	adapter->tx_queue_len = adapter->netdev->tx_queue_len;
+}
+
+/**
+ * e1000_setup_rctl - configure the receive control registers
+ * @adapter: Board private structure
+ **/
+#define PAGE_USE_COUNT(S) (((S) >> PAGE_SHIFT) + \
+			   (((S) & (PAGE_SIZE - 1)) ? 1 : 0))
+static void e1000_setup_rctl(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u32 rctl, rfctl;
+	u32 psrctl = 0;
+	u32 pages = 0;
+
+	/* Program MC offset vector base */
+	rctl = er32(RCTL);
+	rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
+	rctl |= E1000_RCTL_EN | E1000_RCTL_BAM |
+		E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
+		(adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT);
+
+	/* Do not Store bad packets */
+	rctl &= ~E1000_RCTL_SBP;
+
+	/* Enable Long Packet receive */
+	if (adapter->netdev->mtu <= ETH_DATA_LEN)
+		rctl &= ~E1000_RCTL_LPE;
+	else
+		rctl |= E1000_RCTL_LPE;
+
+	/* Setup buffer sizes */
+	rctl &= ~E1000_RCTL_SZ_4096;
+	rctl |= E1000_RCTL_BSEX;
+	switch (adapter->rx_buffer_len) {
+	case 256:
+		rctl |= E1000_RCTL_SZ_256;
+		rctl &= ~E1000_RCTL_BSEX;
+		break;
+	case 512:
+		rctl |= E1000_RCTL_SZ_512;
+		rctl &= ~E1000_RCTL_BSEX;
+		break;
+	case 1024:
+		rctl |= E1000_RCTL_SZ_1024;
+		rctl &= ~E1000_RCTL_BSEX;
+		break;
+	case 2048:
+	default:
+		rctl |= E1000_RCTL_SZ_2048;
+		rctl &= ~E1000_RCTL_BSEX;
+		break;
+	case 4096:
+		rctl |= E1000_RCTL_SZ_4096;
+		break;
+	case 8192:
+		rctl |= E1000_RCTL_SZ_8192;
+		break;
+	case 16384:
+		rctl |= E1000_RCTL_SZ_16384;
+		break;
+	}
+
+	/*
+	 * 82571 and greater support packet-split where the protocol
+	 * header is placed in skb->data and the packet data is
+	 * placed in pages hanging off of skb_shinfo(skb)->nr_frags.
+	 * In the case of a non-split, skb->data is linearly filled,
+	 * followed by the page buffers.  Therefore, skb->data is
+	 * sized to hold the largest protocol header.
+	 *
+	 * allocations using alloc_page take too long for regular MTU
+	 * so only enable packet split for jumbo frames
+	 *
+	 * Using pages when the page size is greater than 16k wastes
+	 * a lot of memory, since we allocate 3 pages at all times
+	 * per packet.
+	 */
+	adapter->rx_ps_pages = 0;
+	pages = PAGE_USE_COUNT(adapter->netdev->mtu);
+	if ((pages <= 3) && (PAGE_SIZE <= 16384) && (rctl & E1000_RCTL_LPE))
+		adapter->rx_ps_pages = pages;
+
+	if (adapter->rx_ps_pages) {
+		/* Configure extra packet-split registers */
+		rfctl = er32(RFCTL);
+		rfctl |= E1000_RFCTL_EXTEN;
+		/* disable packet split support for IPv6 extension headers,
+		 * because some malformed IPv6 headers can hang the RX */
+		rfctl |= (E1000_RFCTL_IPV6_EX_DIS |
+			  E1000_RFCTL_NEW_IPV6_EXT_DIS);
+
+		ew32(RFCTL, rfctl);
+
+		/* disable the stripping of CRC because it breaks
+		 * BMC firmware connected over SMBUS */
+		rctl |= E1000_RCTL_DTYP_PS /* | E1000_RCTL_SECRC */;
+
+		psrctl |= adapter->rx_ps_bsize0 >>
+			E1000_PSRCTL_BSIZE0_SHIFT;
+
+		switch (adapter->rx_ps_pages) {
+		case 3:
+			psrctl |= PAGE_SIZE <<
+				E1000_PSRCTL_BSIZE3_SHIFT;
+		case 2:
+			psrctl |= PAGE_SIZE <<
+				E1000_PSRCTL_BSIZE2_SHIFT;
+		case 1:
+			psrctl |= PAGE_SIZE >>
+				E1000_PSRCTL_BSIZE1_SHIFT;
+			break;
+		}
+
+		ew32(PSRCTL, psrctl);
+	}
+
+	ew32(RCTL, rctl);
+}
+
+/**
+ * e1000_configure_rx - Configure Receive Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Rx unit of the MAC after a reset.
+ **/
+static void e1000_configure_rx(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	struct e1000_ring *rx_ring = adapter->rx_ring;
+	u64 rdba;
+	u32 rdlen, rctl, rxcsum, ctrl_ext;
+
+	if (adapter->rx_ps_pages) {
+		/* this is a 32 byte descriptor */
+		rdlen = rx_ring->count *
+			sizeof(union e1000_rx_desc_packet_split);
+		adapter->clean_rx = e1000_clean_rx_irq_ps;
+		adapter->alloc_rx_buf = e1000_alloc_rx_buffers_ps;
+	} else if (adapter->netdev->mtu > ETH_FRAME_LEN + VLAN_HLEN + 4) {
+		rdlen = rx_ring->count *
+			sizeof(struct e1000_rx_desc);
+		adapter->clean_rx = e1000_clean_rx_irq_jumbo;
+		adapter->alloc_rx_buf = e1000_alloc_rx_buffers_jumbo;
+	} else {
+		rdlen = rx_ring->count *
+			sizeof(struct e1000_rx_desc);
+		adapter->clean_rx = e1000_clean_rx_irq;
+		adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
+	}
+
+	/* disable receives while setting up the descriptors */
+	rctl = er32(RCTL);
+	ew32(RCTL, rctl & ~E1000_RCTL_EN);
+	e1e_flush();
+	msleep(10);
+
+	/* set the Receive Delay Timer Register */
+	ew32(RDTR, adapter->rx_int_delay);
+
+	/* irq moderation */
+	ew32(RADV, adapter->rx_abs_int_delay);
+	if (adapter->itr_setting != 0)
+		ew32(ITR,
+			1000000000 / (adapter->itr * 256));
+
+	ctrl_ext = er32(CTRL_EXT);
+	/* Reset delay timers after every interrupt */
+	ctrl_ext |= E1000_CTRL_EXT_INT_TIMER_CLR;
+	/* Auto-Mask interrupts upon ICR access */
+	ctrl_ext |= E1000_CTRL_EXT_IAME;
+	ew32(IAM, 0xffffffff);
+	ew32(CTRL_EXT, ctrl_ext);
+	e1e_flush();
+
+	/* Setup the HW Rx Head and Tail Descriptor Pointers and
+	 * the Base and Length of the Rx Descriptor Ring */
+	rdba = rx_ring->dma;
+	ew32(RDBAL, (rdba & DMA_32BIT_MASK));
+	ew32(RDBAH, (rdba >> 32));
+	ew32(RDLEN, rdlen);
+	ew32(RDH, 0);
+	ew32(RDT, 0);
+	rx_ring->head = E1000_RDH;
+	rx_ring->tail = E1000_RDT;
+
+	/* Enable Receive Checksum Offload for TCP and UDP */
+	rxcsum = er32(RXCSUM);
+	if (adapter->flags & FLAG_RX_CSUM_ENABLED) {
+		rxcsum |= E1000_RXCSUM_TUOFL;
+
+		/* IPv4 payload checksum for UDP fragments must be
+		 * used in conjunction with packet-split. */
+		if (adapter->rx_ps_pages)
+			rxcsum |= E1000_RXCSUM_IPPCSE;
+	} else {
+		rxcsum &= ~E1000_RXCSUM_TUOFL;
+		/* no need to clear IPPCSE as it defaults to 0 */
+	}
+	ew32(RXCSUM, rxcsum);
+
+	/* Enable early receives on supported devices, only takes effect when
+	 * packet size is equal or larger than the specified value (in 8 byte
+	 * units), e.g. using jumbo frames when setting to E1000_ERT_2048 */
+	if ((adapter->flags & FLAG_HAS_ERT) &&
+	    (adapter->netdev->mtu > ETH_DATA_LEN))
+		ew32(ERT, E1000_ERT_2048);
+
+	/* Enable Receives */
+	ew32(RCTL, rctl);
+}
+
+/**
+ *  e1000_mc_addr_list_update - Update Multicast addresses
+ *  @hw: pointer to the HW structure
+ *  @mc_addr_list: array of multicast addresses to program
+ *  @mc_addr_count: number of multicast addresses to program
+ *  @rar_used_count: the first RAR register free to program
+ *  @rar_count: total number of supported Receive Address Registers
+ *
+ *  Updates the Receive Address Registers and Multicast Table Array.
+ *  The caller must have a packed mc_addr_list of multicast addresses.
+ *  The parameter rar_count will usually be hw->mac.rar_entry_count
+ *  unless there are workarounds that change this.  Currently no func pointer
+ *  exists and all implementations are handled in the generic version of this
+ *  function.
+ **/
+static void e1000_mc_addr_list_update(struct e1000_hw *hw, u8 *mc_addr_list,
+			       u32 mc_addr_count, u32 rar_used_count,
+			       u32 rar_count)
+{
+	hw->mac.ops.mc_addr_list_update(hw, mc_addr_list, mc_addr_count,
+				        rar_used_count, rar_count);
+}
+
+/**
+ * e1000_set_multi - Multicast and Promiscuous mode set
+ * @netdev: network interface device structure
+ *
+ * The set_multi entry point is called whenever the multicast address
+ * list or the network interface flags are updated.  This routine is
+ * responsible for configuring the hardware for proper multicast,
+ * promiscuous mode, and all-multi behavior.
+ **/
+static void e1000_set_multi(struct net_device *netdev)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	struct e1000_mac_info *mac = &hw->mac;
+	struct dev_mc_list *mc_ptr;
+	u8  *mta_list;
+	u32 rctl;
+	int i;
+
+	/* Check for Promiscuous and All Multicast modes */
+
+	rctl = er32(RCTL);
+
+	if (netdev->flags & IFF_PROMISC) {
+		rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
+	} else if (netdev->flags & IFF_ALLMULTI) {
+		rctl |= E1000_RCTL_MPE;
+		rctl &= ~E1000_RCTL_UPE;
+	} else {
+		rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE);
+	}
+
+	ew32(RCTL, rctl);
+
+	if (netdev->mc_count) {
+		mta_list = kmalloc(netdev->mc_count * 6, GFP_ATOMIC);
+		if (!mta_list)
+			return;
+
+		/* prepare a packed array of only addresses. */
+		mc_ptr = netdev->mc_list;
+
+		for (i = 0; i < netdev->mc_count; i++) {
+			if (!mc_ptr)
+				break;
+			memcpy(mta_list + (i*ETH_ALEN), mc_ptr->dmi_addr,
+			       ETH_ALEN);
+			mc_ptr = mc_ptr->next;
+		}
+
+		e1000_mc_addr_list_update(hw, mta_list, i, 1,
+					  mac->rar_entry_count);
+		kfree(mta_list);
+	} else {
+		/*
+		 * if we're called from probe, we might not have
+		 * anything to do here, so clear out the list
+		 */
+		e1000_mc_addr_list_update(hw, NULL, 0, 1,
+					  mac->rar_entry_count);
+	}
+}
+
+/**
+ * e1000_configure - configure the hardware for RX and TX
+ * @adapter: private board structure
+ **/
+static void e1000_configure(struct e1000_adapter *adapter)
+{
+	e1000_set_multi(adapter->netdev);
+
+	e1000_restore_vlan(adapter);
+	e1000_init_manageability(adapter);
+
+	e1000_configure_tx(adapter);
+	e1000_setup_rctl(adapter);
+	e1000_configure_rx(adapter);
+	adapter->alloc_rx_buf(adapter,
+			      e1000_desc_unused(adapter->rx_ring));
+}
+
+/**
+ * e1000e_power_up_phy - restore link in case the phy was powered down
+ * @adapter: address of board private structure
+ *
+ * The phy may be powered down to save power and turn off link when the
+ * driver is unloaded and wake on lan is not enabled (among others)
+ * *** this routine MUST be followed by a call to e1000e_reset ***
+ **/
+void e1000e_power_up_phy(struct e1000_adapter *adapter)
+{
+	u16 mii_reg = 0;
+
+	/* Just clear the power down bit to wake the phy back up */
+	if (adapter->hw.media_type == e1000_media_type_copper) {
+		/* according to the manual, the phy will retain its
+		 * settings across a power-down/up cycle */
+		e1e_rphy(&adapter->hw, PHY_CONTROL, &mii_reg);
+		mii_reg &= ~MII_CR_POWER_DOWN;
+		e1e_wphy(&adapter->hw, PHY_CONTROL, mii_reg);
+	}
+
+	adapter->hw.mac.ops.setup_link(&adapter->hw);
+}
+
+/**
+ * e1000_power_down_phy - Power down the PHY
+ *
+ * Power down the PHY so no link is implied when interface is down
+ * The PHY cannot be powered down is management or WoL is active
+ */
+static void e1000_power_down_phy(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	u16 mii_reg;
+
+	/* WoL is enabled */
+	if (!adapter->wol)
+		return;
+
+	/* non-copper PHY? */
+	if (adapter->hw.media_type != e1000_media_type_copper)
+		return;
+
+	/* reset is blocked because of a SoL/IDER session */
+	if (e1000e_check_mng_mode(hw) ||
+	    e1000_check_reset_block(hw))
+		return;
+
+	/* managebility (AMT) is enabled */
+	if (er32(MANC) & E1000_MANC_SMBUS_EN)
+		return;
+
+	/* power down the PHY */
+	e1e_rphy(hw, PHY_CONTROL, &mii_reg);
+	mii_reg |= MII_CR_POWER_DOWN;
+	e1e_wphy(hw, PHY_CONTROL, mii_reg);
+	mdelay(1);
+}
+
+/**
+ * e1000e_reset - bring the hardware into a known good state
+ *
+ * This function boots the hardware and enables some settings that
+ * require a configuration cycle of the hardware - those cannot be
+ * set/changed during runtime. After reset the device needs to be
+ * properly configured for rx, tx etc.
+ */
+void e1000e_reset(struct e1000_adapter *adapter)
+{
+	struct e1000_mac_info *mac = &adapter->hw.mac;
+	struct e1000_hw *hw = &adapter->hw;
+	u32 tx_space, min_tx_space, min_rx_space;
+	u16 hwm;
+
+	if (mac->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN ) {
+		/* To maintain wire speed transmits, the Tx FIFO should be
+		 * large enough to accommodate two full transmit packets,
+		 * rounded up to the next 1KB and expressed in KB.  Likewise,
+		 * the Rx FIFO should be large enough to accommodate at least
+		 * one full receive packet and is similarly rounded up and
+		 * expressed in KB. */
+		adapter->pba = er32(PBA);
+		/* upper 16 bits has Tx packet buffer allocation size in KB */
+		tx_space = adapter->pba >> 16;
+		/* lower 16 bits has Rx packet buffer allocation size in KB */
+		adapter->pba &= 0xffff;
+		/* 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 = (mac->max_frame_size +
+				sizeof(struct e1000_tx_desc) -
+				ETH_FCS_LEN) * 2;
+		min_tx_space = ALIGN(min_tx_space, 1024);
+		min_tx_space >>= 10;
+		/* software strips receive CRC, so leave room for it */
+		min_rx_space = mac->max_frame_size;
+		min_rx_space = ALIGN(min_rx_space, 1024);
+		min_rx_space >>= 10;
+
+		/* If current Tx allocation is less than the min Tx FIFO size,
+		 * and the min Tx FIFO size is less than the current Rx FIFO
+		 * allocation, take space away from current Rx allocation */
+		if (tx_space < min_tx_space &&
+		    ((min_tx_space - tx_space) < adapter->pba)) {
+			adapter->pba -= - (min_tx_space - tx_space);
+
+			/* if short on rx space, rx wins and must trump tx
+			 * adjustment or use Early Receive if available */
+			if ((adapter->pba < min_rx_space) &&
+			    (!(adapter->flags & FLAG_HAS_ERT)))
+				/* ERT enabled in e1000_configure_rx */
+				adapter->pba = min_rx_space;
+		}
+	}
+
+	ew32(PBA, adapter->pba);
+
+	/* flow control settings */
+	/* The high water mark must be low enough to fit one full frame
+	 * (or the size used for early receive) above it in the Rx FIFO.
+	 * Set it to the lower of:
+	 * - 90% of the Rx FIFO size, and
+	 * - the full Rx FIFO size minus the early receive size (for parts
+	 *   with ERT support assuming ERT set to E1000_ERT_2048), or
+	 * - the full Rx FIFO size minus one full frame */
+	if (adapter->flags & FLAG_HAS_ERT)
+		hwm = min(((adapter->pba << 10) * 9 / 10),
+			  ((adapter->pba << 10) - (E1000_ERT_2048 << 3)));
+	else
+		hwm = min(((adapter->pba << 10) * 9 / 10),
+			  ((adapter->pba << 10) - mac->max_frame_size));
+
+	mac->fc_high_water = hwm & 0xFFF8; /* 8-byte granularity */
+	mac->fc_low_water = mac->fc_high_water - 8;
+
+	if (adapter->flags & FLAG_DISABLE_FC_PAUSE_TIME)
+		mac->fc_pause_time = 0xFFFF;
+	else
+		mac->fc_pause_time = E1000_FC_PAUSE_TIME;
+	mac->fc = mac->original_fc;
+
+	/* Allow time for pending master requests to run */
+	mac->ops.reset_hw(hw);
+	ew32(WUC, 0);
+
+	if (mac->ops.init_hw(hw))
+		ndev_err(adapter->netdev, "Hardware Error\n");
+
+	e1000_update_mng_vlan(adapter);
+
+	/* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
+	ew32(VET, ETH_P_8021Q);
+
+	e1000e_reset_adaptive(hw);
+	e1000_get_phy_info(hw);
+
+	if (!(adapter->flags & FLAG_SMART_POWER_DOWN)) {
+		u16 phy_data = 0;
+		/* speed up time to link by disabling smart power down, ignore
+		 * the return value of this function because there is nothing
+		 * different we would do if it failed */
+		e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data);
+		phy_data &= ~IGP02E1000_PM_SPD;
+		e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, phy_data);
+	}
+
+	e1000_release_manageability(adapter);
+}
+
+int e1000e_up(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+
+	/* hardware has been reset, we need to reload some things */
+	e1000_configure(adapter);
+
+	clear_bit(__E1000_DOWN, &adapter->state);
+
+	napi_enable(&adapter->napi);
+	e1000_irq_enable(adapter);
+
+	/* fire a link change interrupt to start the watchdog */
+	ew32(ICS, E1000_ICS_LSC);
+	return 0;
+}
+
+void e1000e_down(struct e1000_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct e1000_hw *hw = &adapter->hw;
+	u32 tctl, rctl;
+
+	/* signal that we're down so the interrupt handler does not
+	 * reschedule our watchdog timer */
+	set_bit(__E1000_DOWN, &adapter->state);
+
+	/* disable receives in the hardware */
+	rctl = er32(RCTL);
+	ew32(RCTL, rctl & ~E1000_RCTL_EN);
+	/* flush and sleep below */
+
+	netif_stop_queue(netdev);
+
+	/* disable transmits in the hardware */
+	tctl = er32(TCTL);
+	tctl &= ~E1000_TCTL_EN;
+	ew32(TCTL, tctl);
+	/* flush both disables and wait for them to finish */
+	e1e_flush();
+	msleep(10);
+
+	napi_disable(&adapter->napi);
+	e1000_irq_disable(adapter);
+
+	del_timer_sync(&adapter->watchdog_timer);
+	del_timer_sync(&adapter->phy_info_timer);
+
+	netdev->tx_queue_len = adapter->tx_queue_len;
+	netif_carrier_off(netdev);
+	adapter->link_speed = 0;
+	adapter->link_duplex = 0;
+
+	e1000e_reset(adapter);
+	e1000_clean_tx_ring(adapter);
+	e1000_clean_rx_ring(adapter);
+
+	/*
+	 * TODO: for power management, we could drop the link and
+	 * pci_disable_device here.
+	 */
+}
+
+void e1000e_reinit_locked(struct e1000_adapter *adapter)
+{
+	might_sleep();
+	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+		msleep(1);
+	e1000e_down(adapter);
+	e1000e_up(adapter);
+	clear_bit(__E1000_RESETTING, &adapter->state);
+}
+
+/**
+ * e1000_sw_init - Initialize general software structures (struct e1000_adapter)
+ * @adapter: board private structure to initialize
+ *
+ * e1000_sw_init initializes the Adapter private data structure.
+ * Fields are initialized based on PCI device information and
+ * OS network device settings (MTU size).
+ **/
+static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	struct net_device *netdev = adapter->netdev;
+
+	adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN;
+	adapter->rx_ps_bsize0 = 128;
+	hw->mac.max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
+	hw->mac.min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
+
+	adapter->tx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
+	if (!adapter->tx_ring)
+		goto err;
+
+	adapter->rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
+	if (!adapter->rx_ring)
+		goto err;
+
+	spin_lock_init(&adapter->tx_queue_lock);
+
+	/* Explicitly disable IRQ since the NIC can be in any state. */
+	atomic_set(&adapter->irq_sem, 0);
+	e1000_irq_disable(adapter);
+
+	spin_lock_init(&adapter->stats_lock);
+
+	set_bit(__E1000_DOWN, &adapter->state);
+	return 0;
+
+err:
+	ndev_err(netdev, "Unable to allocate memory for queues\n");
+	kfree(adapter->rx_ring);
+	kfree(adapter->tx_ring);
+	return -ENOMEM;
+}
+
+/**
+ * e1000_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP).  At this point all resources needed
+ * for transmit and receive operations are allocated, the interrupt
+ * handler is registered with the OS, the watchdog timer is started,
+ * and the stack is notified that the interface is ready.
+ **/
+static int e1000_open(struct net_device *netdev)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	int err;
+
+	/* disallow open during test */
+	if (test_bit(__E1000_TESTING, &adapter->state))
+		return -EBUSY;
+
+	/* allocate transmit descriptors */
+	err = e1000e_setup_tx_resources(adapter);
+	if (err)
+		goto err_setup_tx;
+
+	/* allocate receive descriptors */
+	err = e1000e_setup_rx_resources(adapter);
+	if (err)
+		goto err_setup_rx;
+
+	e1000e_power_up_phy(adapter);
+
+	adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
+	if ((adapter->hw.mng_cookie.status &
+	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN))
+		e1000_update_mng_vlan(adapter);
+
+	/* If AMT is enabled, let the firmware know that the network
+	 * interface is now open */
+	if ((adapter->flags & FLAG_HAS_AMT) &&
+	    e1000e_check_mng_mode(&adapter->hw))
+		e1000_get_hw_control(adapter);
+
+	/* before we allocate an interrupt, we must be ready to handle it.
+	 * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
+	 * as soon as we call pci_request_irq, so we have to setup our
+	 * clean_rx handler before we do so.  */
+	e1000_configure(adapter);
+
+	err = e1000_request_irq(adapter);
+	if (err)
+		goto err_req_irq;
+
+	/* From here on the code is the same as e1000e_up() */
+	clear_bit(__E1000_DOWN, &adapter->state);
+
+	napi_enable(&adapter->napi);
+
+	e1000_irq_enable(adapter);
+
+	/* fire a link status change interrupt to start the watchdog */
+	ew32(ICS, E1000_ICS_LSC);
+
+	return 0;
+
+err_req_irq:
+	e1000_release_hw_control(adapter);
+	e1000_power_down_phy(adapter);
+	e1000e_free_rx_resources(adapter);
+err_setup_rx:
+	e1000e_free_tx_resources(adapter);
+err_setup_tx:
+	e1000e_reset(adapter);
+
+	return err;
+}
+
+/**
+ * e1000_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS.  The hardware is still under the drivers control, but
+ * needs to be disabled.  A global MAC reset is issued to stop the
+ * hardware, and all transmit and receive resources are freed.
+ **/
+static int e1000_close(struct net_device *netdev)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	WARN_ON(test_bit(__E1000_RESETTING, &adapter->state));
+	e1000e_down(adapter);
+	e1000_power_down_phy(adapter);
+	e1000_free_irq(adapter);
+
+	e1000e_free_tx_resources(adapter);
+	e1000e_free_rx_resources(adapter);
+
+	/* kill manageability vlan ID if supported, but not if a vlan with
+	 * the same ID is registered on the host OS (let 8021q kill it) */
+	if ((adapter->hw.mng_cookie.status &
+			  E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
+	     !(adapter->vlgrp &&
+	       vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id)))
+		e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
+
+	/* If AMT is enabled, let the firmware know that the network
+	 * interface is now closed */
+	if ((adapter->flags & FLAG_HAS_AMT) &&
+	    e1000e_check_mng_mode(&adapter->hw))
+		e1000_release_hw_control(adapter);
+
+	return 0;
+}
+/**
+ * e1000_set_mac - Change the Ethernet Address of the NIC
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int e1000_set_mac(struct net_device *netdev, void *p)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	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);
+
+	e1000e_rar_set(&adapter->hw, adapter->hw.mac.addr, 0);
+
+	if (adapter->flags & FLAG_RESET_OVERWRITES_LAA) {
+		/* activate the work around */
+		e1000e_set_laa_state_82571(&adapter->hw, 1);
+
+		/* Hold a copy of the LAA in RAR[14] This is done so that
+		 * between the time RAR[0] gets clobbered  and the time it
+		 * gets fixed (in e1000_watchdog), the actual LAA is in one
+		 * of the RARs and no incoming packets directed to this port
+		 * are dropped. Eventually the LAA will be in RAR[0] and
+		 * RAR[14] */
+		e1000e_rar_set(&adapter->hw,
+			      adapter->hw.mac.addr,
+			      adapter->hw.mac.rar_entry_count - 1);
+	}
+
+	return 0;
+}
+
+/* Need to wait a few seconds after link up to get diagnostic information from
+ * the phy */
+static void e1000_update_phy_info(unsigned long data)
+{
+	struct e1000_adapter *adapter = (struct e1000_adapter *) data;
+	e1000_get_phy_info(&adapter->hw);
+}
+
+/**
+ * e1000e_update_stats - Update the board statistics counters
+ * @adapter: board private structure
+ **/
+void e1000e_update_stats(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	struct pci_dev *pdev = adapter->pdev;
+	unsigned long irq_flags;
+	u16 phy_tmp;
+
+#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
+
+	/*
+	 * Prevent stats update while adapter is being reset, or if the pci
+	 * connection is down.
+	 */
+	if (adapter->link_speed == 0)
+		return;
+	if (pci_channel_offline(pdev))
+		return;
+
+	spin_lock_irqsave(&adapter->stats_lock, irq_flags);
+
+	/* these counters are modified from e1000_adjust_tbi_stats,
+	 * called from the interrupt context, so they must only
+	 * be written while holding adapter->stats_lock
+	 */
+
+	adapter->stats.crcerrs += er32(CRCERRS);
+	adapter->stats.gprc += er32(GPRC);
+	adapter->stats.gorcl += er32(GORCL);
+	adapter->stats.gorch += er32(GORCH);
+	adapter->stats.bprc += er32(BPRC);
+	adapter->stats.mprc += er32(MPRC);
+	adapter->stats.roc += er32(ROC);
+
+	if (adapter->flags & FLAG_HAS_STATS_PTC_PRC) {
+		adapter->stats.prc64 += er32(PRC64);
+		adapter->stats.prc127 += er32(PRC127);
+		adapter->stats.prc255 += er32(PRC255);
+		adapter->stats.prc511 += er32(PRC511);
+		adapter->stats.prc1023 += er32(PRC1023);
+		adapter->stats.prc1522 += er32(PRC1522);
+		adapter->stats.symerrs += er32(SYMERRS);
+		adapter->stats.sec += er32(SEC);
+	}
+
+	adapter->stats.mpc += er32(MPC);
+	adapter->stats.scc += er32(SCC);
+	adapter->stats.ecol += er32(ECOL);
+	adapter->stats.mcc += er32(MCC);
+	adapter->stats.latecol += er32(LATECOL);
+	adapter->stats.dc += er32(DC);
+	adapter->stats.rlec += er32(RLEC);
+	adapter->stats.xonrxc += er32(XONRXC);
+	adapter->stats.xontxc += er32(XONTXC);
+	adapter->stats.xoffrxc += er32(XOFFRXC);
+	adapter->stats.xofftxc += er32(XOFFTXC);
+	adapter->stats.fcruc += er32(FCRUC);
+	adapter->stats.gptc += er32(GPTC);
+	adapter->stats.gotcl += er32(GOTCL);
+	adapter->stats.gotch += er32(GOTCH);
+	adapter->stats.rnbc += er32(RNBC);
+	adapter->stats.ruc += er32(RUC);
+	adapter->stats.rfc += er32(RFC);
+	adapter->stats.rjc += er32(RJC);
+	adapter->stats.torl += er32(TORL);
+	adapter->stats.torh += er32(TORH);
+	adapter->stats.totl += er32(TOTL);
+	adapter->stats.toth += er32(TOTH);
+	adapter->stats.tpr += er32(TPR);
+
+	if (adapter->flags & FLAG_HAS_STATS_PTC_PRC) {
+		adapter->stats.ptc64 += er32(PTC64);
+		adapter->stats.ptc127 += er32(PTC127);
+		adapter->stats.ptc255 += er32(PTC255);
+		adapter->stats.ptc511 += er32(PTC511);
+		adapter->stats.ptc1023 += er32(PTC1023);
+		adapter->stats.ptc1522 += er32(PTC1522);
+	}
+
+	adapter->stats.mptc += er32(MPTC);
+	adapter->stats.bptc += er32(BPTC);
+
+	/* used for adaptive IFS */
+
+	hw->mac.tx_packet_delta = er32(TPT);
+	adapter->stats.tpt += hw->mac.tx_packet_delta;
+	hw->mac.collision_delta = er32(COLC);
+	adapter->stats.colc += hw->mac.collision_delta;
+
+	adapter->stats.algnerrc += er32(ALGNERRC);
+	adapter->stats.rxerrc += er32(RXERRC);
+	adapter->stats.tncrs += er32(TNCRS);
+	adapter->stats.cexterr += er32(CEXTERR);
+	adapter->stats.tsctc += er32(TSCTC);
+	adapter->stats.tsctfc += er32(TSCTFC);
+
+	adapter->stats.iac += er32(IAC);
+
+	if (adapter->flags & FLAG_HAS_STATS_ICR_ICT) {
+		adapter->stats.icrxoc += er32(ICRXOC);
+		adapter->stats.icrxptc += er32(ICRXPTC);
+		adapter->stats.icrxatc += er32(ICRXATC);
+		adapter->stats.ictxptc += er32(ICTXPTC);
+		adapter->stats.ictxatc += er32(ICTXATC);
+		adapter->stats.ictxqec += er32(ICTXQEC);
+		adapter->stats.ictxqmtc += er32(ICTXQMTC);
+		adapter->stats.icrxdmtc += er32(ICRXDMTC);
+	}
+
+	/* Fill out the OS statistics structure */
+	adapter->net_stats.rx_packets = adapter->stats.gprc;
+	adapter->net_stats.tx_packets = adapter->stats.gptc;
+	adapter->net_stats.rx_bytes = adapter->stats.gorcl;
+	adapter->net_stats.tx_bytes = adapter->stats.gotcl;
+	adapter->net_stats.multicast = adapter->stats.mprc;
+	adapter->net_stats.collisions = adapter->stats.colc;
+
+	/* Rx Errors */
+
+	/* RLEC on some newer hardware can be incorrect so build
+	* our own version based on RUC and ROC */
+	adapter->net_stats.rx_errors = adapter->stats.rxerrc +
+		adapter->stats.crcerrs + adapter->stats.algnerrc +
+		adapter->stats.ruc + adapter->stats.roc +
+		adapter->stats.cexterr;
+	adapter->net_stats.rx_length_errors = adapter->stats.ruc +
+					      adapter->stats.roc;
+	adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs;
+	adapter->net_stats.rx_frame_errors = adapter->stats.algnerrc;
+	adapter->net_stats.rx_missed_errors = adapter->stats.mpc;
+
+	/* Tx Errors */
+	adapter->net_stats.tx_errors = adapter->stats.ecol +
+				       adapter->stats.latecol;
+	adapter->net_stats.tx_aborted_errors = adapter->stats.ecol;
+	adapter->net_stats.tx_window_errors = adapter->stats.latecol;
+	adapter->net_stats.tx_carrier_errors = adapter->stats.tncrs;
+
+	/* Tx Dropped needs to be maintained elsewhere */
+
+	/* Phy Stats */
+	if (hw->media_type == e1000_media_type_copper) {
+		if ((adapter->link_speed == SPEED_1000) &&
+		   (!e1e_rphy(hw, PHY_1000T_STATUS, &phy_tmp))) {
+			phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
+			adapter->phy_stats.idle_errors += phy_tmp;
+		}
+	}
+
+	/* Management Stats */
+	adapter->stats.mgptc += er32(MGTPTC);
+	adapter->stats.mgprc += er32(MGTPRC);
+	adapter->stats.mgpdc += er32(MGTPDC);
+
+	spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
+}
+
+static void e1000_print_link_info(struct e1000_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct e1000_hw *hw = &adapter->hw;
+	u32 ctrl = er32(CTRL);
+
+	ndev_info(netdev,
+		"Link is Up %d Mbps %s, Flow Control: %s\n",
+		adapter->link_speed,
+		(adapter->link_duplex == FULL_DUPLEX) ?
+				"Full Duplex" : "Half Duplex",
+		((ctrl & E1000_CTRL_TFCE) && (ctrl & E1000_CTRL_RFCE)) ?
+				"RX/TX" :
+		((ctrl & E1000_CTRL_RFCE) ? "RX" :
+		((ctrl & E1000_CTRL_TFCE) ? "TX" : "None" )));
+}
+
+/**
+ * e1000_watchdog - Timer Call-back
+ * @data: pointer to adapter cast into an unsigned long
+ **/
+static void e1000_watchdog(unsigned long data)
+{
+	struct e1000_adapter *adapter = (struct e1000_adapter *) data;
+
+	/* Do the rest outside of interrupt context */
+	schedule_work(&adapter->watchdog_task);
+
+	/* TODO: make this use queue_delayed_work() */
+}
+
+static void e1000_watchdog_task(struct work_struct *work)
+{
+	struct e1000_adapter *adapter = container_of(work,
+					struct e1000_adapter, watchdog_task);
+
+	struct net_device *netdev = adapter->netdev;
+	struct e1000_mac_info *mac = &adapter->hw.mac;
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	struct e1000_hw *hw = &adapter->hw;
+	u32 link, tctl;
+	s32 ret_val;
+	int tx_pending = 0;
+
+	if ((netif_carrier_ok(netdev)) &&
+	    (er32(STATUS) & E1000_STATUS_LU))
+		goto link_up;
+
+	ret_val = mac->ops.check_for_link(hw);
+	if ((ret_val == E1000_ERR_PHY) &&
+	    (adapter->hw.phy.type == e1000_phy_igp_3) &&
+	    (er32(CTRL) &
+	     E1000_PHY_CTRL_GBE_DISABLE)) {
+		/* See e1000_kmrn_lock_loss_workaround_ich8lan() */
+		ndev_info(netdev,
+			"Gigabit has been disabled, downgrading speed\n");
+	}
+
+	if ((e1000e_enable_tx_pkt_filtering(hw)) &&
+	    (adapter->mng_vlan_id != adapter->hw.mng_cookie.vlan_id))
+		e1000_update_mng_vlan(adapter);
+
+	if ((adapter->hw.media_type == e1000_media_type_internal_serdes) &&
+	   !(er32(TXCW) & E1000_TXCW_ANE))
+		link = adapter->hw.mac.serdes_has_link;
+	else
+		link = er32(STATUS) & E1000_STATUS_LU;
+
+	if (link) {
+		if (!netif_carrier_ok(netdev)) {
+			bool txb2b = 1;
+			mac->ops.get_link_up_info(&adapter->hw,
+						   &adapter->link_speed,
+						   &adapter->link_duplex);
+			e1000_print_link_info(adapter);
+			/* tweak tx_queue_len according to speed/duplex
+			 * and adjust the timeout factor */
+			netdev->tx_queue_len = adapter->tx_queue_len;
+			adapter->tx_timeout_factor = 1;
+			switch (adapter->link_speed) {
+			case SPEED_10:
+				txb2b = 0;
+				netdev->tx_queue_len = 10;
+				adapter->tx_timeout_factor = 14;
+				break;
+			case SPEED_100:
+				txb2b = 0;
+				netdev->tx_queue_len = 100;
+				/* maybe add some timeout factor ? */
+				break;
+			}
+
+			/* workaround: re-program speed mode bit after
+			 * link-up event */
+			if ((adapter->flags & FLAG_TARC_SPEED_MODE_BIT) &&
+			    !txb2b) {
+				u32 tarc0;
+				tarc0 = er32(TARC0);
+				tarc0 &= ~SPEED_MODE_BIT;
+				ew32(TARC0, tarc0);
+			}
+
+			/* disable TSO for pcie and 10/100 speeds, to avoid
+			 * some hardware issues */
+			if (!(adapter->flags & FLAG_TSO_FORCE)) {
+				switch (adapter->link_speed) {
+				case SPEED_10:
+				case SPEED_100:
+					ndev_info(netdev,
+					"10/100 speed: disabling TSO\n");
+					netdev->features &= ~NETIF_F_TSO;
+					netdev->features &= ~NETIF_F_TSO6;
+					break;
+				case SPEED_1000:
+					netdev->features |= NETIF_F_TSO;
+					netdev->features |= NETIF_F_TSO6;
+					break;
+				default:
+					/* oops */
+					break;
+				}
+			}
+
+			/* enable transmits in the hardware, need to do this
+			 * after setting TARC0 */
+			tctl = er32(TCTL);
+			tctl |= E1000_TCTL_EN;
+			ew32(TCTL, tctl);
+
+			netif_carrier_on(netdev);
+			netif_wake_queue(netdev);
+
+			if (!test_bit(__E1000_DOWN, &adapter->state))
+				mod_timer(&adapter->phy_info_timer,
+					  round_jiffies(jiffies + 2 * HZ));
+		} else {
+			/* make sure the receive unit is started */
+			if (adapter->flags & FLAG_RX_NEEDS_RESTART) {
+				u32 rctl = er32(RCTL);
+				ew32(RCTL, rctl |
+						E1000_RCTL_EN);
+			}
+		}
+	} else {
+		if (netif_carrier_ok(netdev)) {
+			adapter->link_speed = 0;
+			adapter->link_duplex = 0;
+			ndev_info(netdev, "Link is Down\n");
+			netif_carrier_off(netdev);
+			netif_stop_queue(netdev);
+			if (!test_bit(__E1000_DOWN, &adapter->state))
+				mod_timer(&adapter->phy_info_timer,
+					  round_jiffies(jiffies + 2 * HZ));
+
+			if (adapter->flags & FLAG_RX_NEEDS_RESTART)
+				schedule_work(&adapter->reset_task);
+		}
+	}
+
+link_up:
+	e1000e_update_stats(adapter);
+
+	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;
+	adapter->colc_old = adapter->stats.colc;
+
+	adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old;
+	adapter->gorcl_old = adapter->stats.gorcl;
+	adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old;
+	adapter->gotcl_old = adapter->stats.gotcl;
+
+	e1000e_update_adaptive(&adapter->hw);
+
+	if (!netif_carrier_ok(netdev)) {
+		tx_pending = (e1000_desc_unused(tx_ring) + 1 <
+			       tx_ring->count);
+		if (tx_pending) {
+			/* 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.
+			 * (Do the reset outside of interrupt context). */
+			adapter->tx_timeout_count++;
+			schedule_work(&adapter->reset_task);
+		}
+	}
+
+	/* Cause software interrupt to ensure rx ring is cleaned */
+	ew32(ICS, E1000_ICS_RXDMT0);
+
+	/* Force detection of hung controller every watchdog period */
+	adapter->detect_tx_hung = 1;
+
+	/* With 82571 controllers, LAA may be overwritten due to controller
+	 * reset from the other port. Set the appropriate LAA in RAR[0] */
+	if (e1000e_get_laa_state_82571(hw))
+		e1000e_rar_set(hw, adapter->hw.mac.addr, 0);
+
+	/* Reset the timer */
+	if (!test_bit(__E1000_DOWN, &adapter->state))
+		mod_timer(&adapter->watchdog_timer,
+			  round_jiffies(jiffies + 2 * HZ));
+}
+
+#define E1000_TX_FLAGS_CSUM		0x00000001
+#define E1000_TX_FLAGS_VLAN		0x00000002
+#define E1000_TX_FLAGS_TSO		0x00000004
+#define E1000_TX_FLAGS_IPV4		0x00000008
+#define E1000_TX_FLAGS_VLAN_MASK	0xffff0000
+#define E1000_TX_FLAGS_VLAN_SHIFT	16
+
+static int e1000_tso(struct e1000_adapter *adapter,
+		     struct sk_buff *skb)
+{
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	struct e1000_context_desc *context_desc;
+	struct e1000_buffer *buffer_info;
+	unsigned int i;
+	u32 cmd_length = 0;
+	u16 ipcse = 0, tucse, mss;
+	u8 ipcss, ipcso, tucss, tucso, hdr_len;
+	int err;
+
+	if (skb_is_gso(skb)) {
+		if (skb_header_cloned(skb)) {
+			err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
+			if (err)
+				return err;
+		}
+
+		hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+		mss = skb_shinfo(skb)->gso_size;
+		if (skb->protocol == htons(ETH_P_IP)) {
+			struct iphdr *iph = ip_hdr(skb);
+			iph->tot_len = 0;
+			iph->check = 0;
+			tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+								 iph->daddr, 0,
+								 IPPROTO_TCP,
+								 0);
+			cmd_length = E1000_TXD_CMD_IP;
+			ipcse = skb_transport_offset(skb) - 1;
+		} else if (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV6) {
+			ipv6_hdr(skb)->payload_len = 0;
+			tcp_hdr(skb)->check =
+				~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+						 &ipv6_hdr(skb)->daddr,
+						 0, IPPROTO_TCP, 0);
+			ipcse = 0;
+		}
+		ipcss = skb_network_offset(skb);
+		ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data;
+		tucss = skb_transport_offset(skb);
+		tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
+		tucse = 0;
+
+		cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
+			       E1000_TXD_CMD_TCP | (skb->len - (hdr_len)));
+
+		i = tx_ring->next_to_use;
+		context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
+		buffer_info = &tx_ring->buffer_info[i];
+
+		context_desc->lower_setup.ip_fields.ipcss  = ipcss;
+		context_desc->lower_setup.ip_fields.ipcso  = ipcso;
+		context_desc->lower_setup.ip_fields.ipcse  = cpu_to_le16(ipcse);
+		context_desc->upper_setup.tcp_fields.tucss = tucss;
+		context_desc->upper_setup.tcp_fields.tucso = tucso;
+		context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse);
+		context_desc->tcp_seg_setup.fields.mss     = cpu_to_le16(mss);
+		context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
+		context_desc->cmd_and_length = cpu_to_le32(cmd_length);
+
+		buffer_info->time_stamp = jiffies;
+		buffer_info->next_to_watch = i;
+
+		i++;
+		if (i == tx_ring->count)
+			i = 0;
+		tx_ring->next_to_use = i;
+
+		return 1;
+	}
+
+	return 0;
+}
+
+static bool e1000_tx_csum(struct e1000_adapter *adapter, struct sk_buff *skb)
+{
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	struct e1000_context_desc *context_desc;
+	struct e1000_buffer *buffer_info;
+	unsigned int i;
+	u8 css;
+
+	if (skb->ip_summed == CHECKSUM_PARTIAL) {
+		css = skb_transport_offset(skb);
+
+		i = tx_ring->next_to_use;
+		buffer_info = &tx_ring->buffer_info[i];
+		context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
+
+		context_desc->lower_setup.ip_config = 0;
+		context_desc->upper_setup.tcp_fields.tucss = css;
+		context_desc->upper_setup.tcp_fields.tucso =
+					css + skb->csum_offset;
+		context_desc->upper_setup.tcp_fields.tucse = 0;
+		context_desc->tcp_seg_setup.data = 0;
+		context_desc->cmd_and_length = cpu_to_le32(E1000_TXD_CMD_DEXT);
+
+		buffer_info->time_stamp = jiffies;
+		buffer_info->next_to_watch = i;
+
+		i++;
+		if (i == tx_ring->count)
+			i = 0;
+		tx_ring->next_to_use = i;
+
+		return 1;
+	}
+
+	return 0;
+}
+
+#define E1000_MAX_PER_TXD	8192
+#define E1000_MAX_TXD_PWR	12
+
+static int e1000_tx_map(struct e1000_adapter *adapter,
+			struct sk_buff *skb, unsigned int first,
+			unsigned int max_per_txd, unsigned int nr_frags,
+			unsigned int mss)
+{
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	struct e1000_buffer *buffer_info;
+	unsigned int len = skb->len - skb->data_len;
+	unsigned int offset = 0, size, count = 0, i;
+	unsigned int f;
+
+	i = tx_ring->next_to_use;
+
+	while (len) {
+		buffer_info = &tx_ring->buffer_info[i];
+		size = min(len, max_per_txd);
+
+		/* Workaround for premature desc write-backs
+		 * in TSO mode.  Append 4-byte sentinel desc */
+		if (mss && !nr_frags && size == len && size > 8)
+			size -= 4;
+
+		buffer_info->length = size;
+		/* set time_stamp *before* dma to help avoid a possible race */
+		buffer_info->time_stamp = jiffies;
+		buffer_info->dma =
+			pci_map_single(adapter->pdev,
+				skb->data + offset,
+				size,
+				PCI_DMA_TODEVICE);
+		if (pci_dma_mapping_error(buffer_info->dma)) {
+			dev_err(&adapter->pdev->dev, "TX DMA map failed\n");
+			adapter->tx_dma_failed++;
+			return -1;
+		}
+		buffer_info->next_to_watch = i;
+
+		len -= size;
+		offset += size;
+		count++;
+		i++;
+		if (i == tx_ring->count)
+			i = 0;
+	}
+
+	for (f = 0; f < nr_frags; f++) {
+		struct skb_frag_struct *frag;
+
+		frag = &skb_shinfo(skb)->frags[f];
+		len = frag->size;
+		offset = frag->page_offset;
+
+		while (len) {
+			buffer_info = &tx_ring->buffer_info[i];
+			size = min(len, max_per_txd);
+			/* Workaround for premature desc write-backs
+			 * in TSO mode.  Append 4-byte sentinel desc */
+			if (mss && f == (nr_frags-1) && size == len && size > 8)
+				size -= 4;
+
+			buffer_info->length = size;
+			buffer_info->time_stamp = jiffies;
+			buffer_info->dma =
+				pci_map_page(adapter->pdev,
+					frag->page,
+					offset,
+					size,
+					PCI_DMA_TODEVICE);
+			if (pci_dma_mapping_error(buffer_info->dma)) {
+				dev_err(&adapter->pdev->dev,
+					"TX DMA page map failed\n");
+				adapter->tx_dma_failed++;
+				return -1;
+			}
+
+			buffer_info->next_to_watch = i;
+
+			len -= size;
+			offset += size;
+			count++;
+
+			i++;
+			if (i == tx_ring->count)
+				i = 0;
+		}
+	}
+
+	if (i == 0)
+		i = tx_ring->count - 1;
+	else
+		i--;
+
+	tx_ring->buffer_info[i].skb = skb;
+	tx_ring->buffer_info[first].next_to_watch = i;
+
+	return count;
+}
+
+static void e1000_tx_queue(struct e1000_adapter *adapter,
+			   int tx_flags, int count)
+{
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	struct e1000_tx_desc *tx_desc = NULL;
+	struct e1000_buffer *buffer_info;
+	u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS;
+	unsigned int i;
+
+	if (tx_flags & E1000_TX_FLAGS_TSO) {
+		txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D |
+			     E1000_TXD_CMD_TSE;
+		txd_upper |= E1000_TXD_POPTS_TXSM << 8;
+
+		if (tx_flags & E1000_TX_FLAGS_IPV4)
+			txd_upper |= E1000_TXD_POPTS_IXSM << 8;
+	}
+
+	if (tx_flags & E1000_TX_FLAGS_CSUM) {
+		txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
+		txd_upper |= E1000_TXD_POPTS_TXSM << 8;
+	}
+
+	if (tx_flags & E1000_TX_FLAGS_VLAN) {
+		txd_lower |= E1000_TXD_CMD_VLE;
+		txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK);
+	}
+
+	i = tx_ring->next_to_use;
+
+	while (count--) {
+		buffer_info = &tx_ring->buffer_info[i];
+		tx_desc = E1000_TX_DESC(*tx_ring, i);
+		tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
+		tx_desc->lower.data =
+			cpu_to_le32(txd_lower | buffer_info->length);
+		tx_desc->upper.data = cpu_to_le32(txd_upper);
+
+		i++;
+		if (i == tx_ring->count)
+			i = 0;
+	}
+
+	tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd);
+
+	/* Force memory writes to complete before letting h/w
+	 * know there are new descriptors to fetch.  (Only
+	 * applicable for weak-ordered memory model archs,
+	 * such as IA-64). */
+	wmb();
+
+	tx_ring->next_to_use = i;
+	writel(i, adapter->hw.hw_addr + tx_ring->tail);
+	/* we need this if more than one processor can write to our tail
+	 * at a time, it synchronizes IO on IA64/Altix systems */
+	mmiowb();
+}
+
+#define MINIMUM_DHCP_PACKET_SIZE 282
+static int e1000_transfer_dhcp_info(struct e1000_adapter *adapter,
+				    struct sk_buff *skb)
+{
+	struct e1000_hw *hw =  &adapter->hw;
+	u16 length, offset;
+
+	if (vlan_tx_tag_present(skb)) {
+		if (!((vlan_tx_tag_get(skb) == adapter->hw.mng_cookie.vlan_id)
+		    && (adapter->hw.mng_cookie.status &
+			E1000_MNG_DHCP_COOKIE_STATUS_VLAN)))
+			return 0;
+	}
+
+	if (skb->len <= MINIMUM_DHCP_PACKET_SIZE)
+		return 0;
+
+	if (((struct ethhdr *) skb->data)->h_proto != htons(ETH_P_IP))
+		return 0;
+
+	{
+		const struct iphdr *ip = (struct iphdr *)((u8 *)skb->data+14);
+		struct udphdr *udp;
+
+		if (ip->protocol != IPPROTO_UDP)
+			return 0;
+
+		udp = (struct udphdr *)((u8 *)ip + (ip->ihl << 2));
+		if (ntohs(udp->dest) != 67)
+			return 0;
+
+		offset = (u8 *)udp + 8 - skb->data;
+		length = skb->len - offset;
+		return e1000e_mng_write_dhcp_info(hw, (u8 *)udp + 8, length);
+	}
+
+	return 0;
+}
+
+static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	netif_stop_queue(netdev);
+	/* Herbert's original patch had:
+	 *  smp_mb__after_netif_stop_queue();
+	 * but since that doesn't exist yet, just open code it. */
+	smp_mb();
+
+	/* We need to check again in a case another CPU has just
+	 * made room available. */
+	if (e1000_desc_unused(adapter->tx_ring) < size)
+		return -EBUSY;
+
+	/* A reprieve! */
+	netif_start_queue(netdev);
+	++adapter->restart_queue;
+	return 0;
+}
+
+static int e1000_maybe_stop_tx(struct net_device *netdev, int size)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	if (e1000_desc_unused(adapter->tx_ring) >= size)
+		return 0;
+	return __e1000_maybe_stop_tx(netdev, size);
+}
+
+#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 )
+static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_ring *tx_ring = adapter->tx_ring;
+	unsigned int first;
+	unsigned int max_per_txd = E1000_MAX_PER_TXD;
+	unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
+	unsigned int tx_flags = 0;
+	unsigned int len = skb->len;
+	unsigned long irq_flags;
+	unsigned int nr_frags = 0;
+	unsigned int mss = 0;
+	int count = 0;
+	int tso;
+	unsigned int f;
+	len -= skb->data_len;
+
+	if (test_bit(__E1000_DOWN, &adapter->state)) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	if (skb->len <= 0) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	mss = skb_shinfo(skb)->gso_size;
+	/* The controller does a simple calculation to
+	 * make sure there is enough room in the FIFO before
+	 * initiating the DMA for each buffer.  The calc is:
+	 * 4 = ceil(buffer len/mss).  To make sure we don't
+	 * overrun the FIFO, adjust the max buffer len if mss
+	 * drops. */
+	if (mss) {
+		u8 hdr_len;
+		max_per_txd = min(mss << 2, max_per_txd);
+		max_txd_pwr = fls(max_per_txd) - 1;
+
+		/* TSO Workaround for 82571/2/3 Controllers -- if skb->data
+		* points to just header, pull a few bytes of payload from
+		* frags into skb->data */
+		hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+		if (skb->data_len && (hdr_len == (skb->len - skb->data_len))) {
+			unsigned int pull_size;
+
+			pull_size = min((unsigned int)4, skb->data_len);
+			if (!__pskb_pull_tail(skb, pull_size)) {
+				ndev_err(netdev,
+					 "__pskb_pull_tail failed.\n");
+				dev_kfree_skb_any(skb);
+				return NETDEV_TX_OK;
+			}
+			len = skb->len - skb->data_len;
+		}
+	}
+
+	/* reserve a descriptor for the offload context */
+	if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL))
+		count++;
+	count++;
+
+	count += TXD_USE_COUNT(len, max_txd_pwr);
+
+	nr_frags = skb_shinfo(skb)->nr_frags;
+	for (f = 0; f < nr_frags; f++)
+		count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size,
+				       max_txd_pwr);
+
+	if (adapter->hw.mac.tx_pkt_filtering)
+		e1000_transfer_dhcp_info(adapter, skb);
+
+	if (!spin_trylock_irqsave(&adapter->tx_queue_lock, irq_flags))
+		/* Collision - tell upper layer to requeue */
+		return NETDEV_TX_LOCKED;
+
+	/* need: count + 2 desc gap to keep tail from touching
+	 * head, otherwise try next time */
+	if (e1000_maybe_stop_tx(netdev, count + 2)) {
+		spin_unlock_irqrestore(&adapter->tx_queue_lock, irq_flags);
+		return NETDEV_TX_BUSY;
+	}
+
+	if (adapter->vlgrp && vlan_tx_tag_present(skb)) {
+		tx_flags |= E1000_TX_FLAGS_VLAN;
+		tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
+	}
+
+	first = tx_ring->next_to_use;
+
+	tso = e1000_tso(adapter, skb);
+	if (tso < 0) {
+		dev_kfree_skb_any(skb);
+		spin_unlock_irqrestore(&adapter->tx_queue_lock, irq_flags);
+		return NETDEV_TX_OK;
+	}
+
+	if (tso)
+		tx_flags |= E1000_TX_FLAGS_TSO;
+	else if (e1000_tx_csum(adapter, skb))
+		tx_flags |= E1000_TX_FLAGS_CSUM;
+
+	/* Old method was to assume IPv4 packet by default if TSO was enabled.
+	 * 82571 hardware supports TSO capabilities for IPv6 as well...
+	 * no longer assume, we must. */
+	if (skb->protocol == htons(ETH_P_IP))
+		tx_flags |= E1000_TX_FLAGS_IPV4;
+
+	count = e1000_tx_map(adapter, skb, first, max_per_txd, nr_frags, mss);
+	if (count < 0) {
+		/* handle pci_map_single() error in e1000_tx_map */
+		dev_kfree_skb_any(skb);
+		spin_unlock_irqrestore(&adapter->tx_queue_lock, irq_flags);
+		return NETDEV_TX_BUSY;
+	}
+
+	e1000_tx_queue(adapter, tx_flags, count);
+
+	netdev->trans_start = jiffies;
+
+	/* Make sure there is space in the ring for the next send. */
+	e1000_maybe_stop_tx(netdev, MAX_SKB_FRAGS + 2);
+
+	spin_unlock_irqrestore(&adapter->tx_queue_lock, irq_flags);
+	return NETDEV_TX_OK;
+}
+
+/**
+ * e1000_tx_timeout - Respond to a Tx Hang
+ * @netdev: network interface device structure
+ **/
+static void e1000_tx_timeout(struct net_device *netdev)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	/* Do the reset outside of interrupt context */
+	adapter->tx_timeout_count++;
+	schedule_work(&adapter->reset_task);
+}
+
+static void e1000_reset_task(struct work_struct *work)
+{
+	struct e1000_adapter *adapter;
+	adapter = container_of(work, struct e1000_adapter, reset_task);
+
+	e1000e_reinit_locked(adapter);
+}
+
+/**
+ * e1000_get_stats - Get System Network Statistics
+ * @netdev: network interface device structure
+ *
+ * Returns the address of the device statistics structure.
+ * The statistics are actually updated from the timer callback.
+ **/
+static struct net_device_stats *e1000_get_stats(struct net_device *netdev)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	/* only return the current stats */
+	return &adapter->net_stats;
+}
+
+/**
+ * e1000_change_mtu - Change the Maximum Transfer Unit
+ * @netdev: network interface device structure
+ * @new_mtu: new value for maximum frame size
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
+
+	if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) ||
+	    (max_frame > MAX_JUMBO_FRAME_SIZE)) {
+		ndev_err(netdev, "Invalid MTU setting\n");
+		return -EINVAL;
+	}
+
+	/* Jumbo frame size limits */
+	if (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) {
+		if (!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
+			ndev_err(netdev, "Jumbo Frames not supported.\n");
+			return -EINVAL;
+		}
+		if (adapter->hw.phy.type == e1000_phy_ife) {
+			ndev_err(netdev, "Jumbo Frames not supported.\n");
+			return -EINVAL;
+		}
+	}
+
+#define MAX_STD_JUMBO_FRAME_SIZE 9234
+	if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
+		ndev_err(netdev, "MTU > 9216 not supported.\n");
+		return -EINVAL;
+	}
+
+	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
+		msleep(1);
+	/* e1000e_down has a dependency on max_frame_size */
+	adapter->hw.mac.max_frame_size = max_frame;
+	if (netif_running(netdev))
+		e1000e_down(adapter);
+
+	/* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
+	 * means we reserve 2 more, this pushes us to allocate from the next
+	 * larger slab size.
+	 * i.e. RXBUFFER_2048 --> size-4096 slab
+	 *  however with the new *_jumbo* routines, jumbo receives will use
+	 *  fragmented skbs */
+
+	if (max_frame <= 256)
+		adapter->rx_buffer_len = 256;
+	else if (max_frame <= 512)
+		adapter->rx_buffer_len = 512;
+	else if (max_frame <= 1024)
+		adapter->rx_buffer_len = 1024;
+	else if (max_frame <= 2048)
+		adapter->rx_buffer_len = 2048;
+	else
+		adapter->rx_buffer_len = 4096;
+
+	/* adjust allocation if LPE protects us, and we aren't using SBP */
+	if ((max_frame == ETH_FRAME_LEN + ETH_FCS_LEN) ||
+	     (max_frame == ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN))
+		adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN
+					 + ETH_FCS_LEN ;
+
+	ndev_info(netdev, "changing MTU from %d to %d\n",
+		netdev->mtu, new_mtu);
+	netdev->mtu = new_mtu;
+
+	if (netif_running(netdev))
+		e1000e_up(adapter);
+	else
+		e1000e_reset(adapter);
+
+	clear_bit(__E1000_RESETTING, &adapter->state);
+
+	return 0;
+}
+
+static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
+			   int cmd)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct mii_ioctl_data *data = if_mii(ifr);
+	unsigned long irq_flags;
+
+	if (adapter->hw.media_type != e1000_media_type_copper)
+		return -EOPNOTSUPP;
+
+	switch (cmd) {
+	case SIOCGMIIPHY:
+		data->phy_id = adapter->hw.phy.addr;
+		break;
+	case SIOCGMIIREG:
+		if (!capable(CAP_NET_ADMIN))
+			return -EPERM;
+		spin_lock_irqsave(&adapter->stats_lock, irq_flags);
+		if (e1e_rphy(&adapter->hw, data->reg_num & 0x1F,
+				   &data->val_out)) {
+			spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
+			return -EIO;
+		}
+		spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
+		break;
+	case SIOCSMIIREG:
+	default:
+		return -EOPNOTSUPP;
+	}
+	return 0;
+}
+
+static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+	switch (cmd) {
+	case SIOCGMIIPHY:
+	case SIOCGMIIREG:
+	case SIOCSMIIREG:
+		return e1000_mii_ioctl(netdev, ifr, cmd);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	u32 ctrl, ctrl_ext, rctl, status;
+	u32 wufc = adapter->wol;
+	int retval = 0;
+
+	netif_device_detach(netdev);
+
+	if (netif_running(netdev)) {
+		WARN_ON(test_bit(__E1000_RESETTING, &adapter->state));
+		e1000e_down(adapter);
+		e1000_free_irq(adapter);
+	}
+
+	retval = pci_save_state(pdev);
+	if (retval)
+		return retval;
+
+	status = er32(STATUS);
+	if (status & E1000_STATUS_LU)
+		wufc &= ~E1000_WUFC_LNKC;
+
+	if (wufc) {
+		e1000_setup_rctl(adapter);
+		e1000_set_multi(netdev);
+
+		/* turn on all-multi mode if wake on multicast is enabled */
+		if (wufc & E1000_WUFC_MC) {
+			rctl = er32(RCTL);
+			rctl |= E1000_RCTL_MPE;
+			ew32(RCTL, rctl);
+		}
+
+		ctrl = er32(CTRL);
+		/* advertise wake from D3Cold */
+		#define E1000_CTRL_ADVD3WUC 0x00100000
+		/* phy power management enable */
+		#define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000
+		ctrl |= E1000_CTRL_ADVD3WUC |
+			E1000_CTRL_EN_PHY_PWR_MGMT;
+		ew32(CTRL, ctrl);
+
+		if (adapter->hw.media_type == e1000_media_type_fiber ||
+		   adapter->hw.media_type == e1000_media_type_internal_serdes) {
+			/* keep the laser running in D3 */
+			ctrl_ext = er32(CTRL_EXT);
+			ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA;
+			ew32(CTRL_EXT, ctrl_ext);
+		}
+
+		/* Allow time for pending master requests to run */
+		e1000e_disable_pcie_master(&adapter->hw);
+
+		ew32(WUC, E1000_WUC_PME_EN);
+		ew32(WUFC, wufc);
+		pci_enable_wake(pdev, PCI_D3hot, 1);
+		pci_enable_wake(pdev, PCI_D3cold, 1);
+	} else {
+		ew32(WUC, 0);
+		ew32(WUFC, 0);
+		pci_enable_wake(pdev, PCI_D3hot, 0);
+		pci_enable_wake(pdev, PCI_D3cold, 0);
+	}
+
+	e1000_release_manageability(adapter);
+
+	/* make sure adapter isn't asleep if manageability is enabled */
+	if (adapter->flags & FLAG_MNG_PT_ENABLED) {
+		pci_enable_wake(pdev, PCI_D3hot, 1);
+		pci_enable_wake(pdev, PCI_D3cold, 1);
+	}
+
+	if (adapter->hw.phy.type == e1000_phy_igp_3)
+		e1000e_igp3_phy_powerdown_workaround_ich8lan(&adapter->hw);
+
+	/* Release control of h/w to f/w.  If f/w is AMT enabled, this
+	 * would have already happened in close and is redundant. */
+	e1000_release_hw_control(adapter);
+
+	pci_disable_device(pdev);
+
+	pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int e1000_resume(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+	u32 err;
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+	err = pci_enable_device(pdev);
+	if (err) {
+		dev_err(&pdev->dev,
+			"Cannot enable PCI device from suspend\n");
+		return err;
+	}
+
+	pci_set_master(pdev);
+
+	pci_enable_wake(pdev, PCI_D3hot, 0);
+	pci_enable_wake(pdev, PCI_D3cold, 0);
+
+	if (netif_running(netdev)) {
+		err = e1000_request_irq(adapter);
+		if (err)
+			return err;
+	}
+
+	e1000e_power_up_phy(adapter);
+	e1000e_reset(adapter);
+	ew32(WUS, ~0);
+
+	e1000_init_manageability(adapter);
+
+	if (netif_running(netdev))
+		e1000e_up(adapter);
+
+	netif_device_attach(netdev);
+
+	/* If the controller has AMT, do not set DRV_LOAD until the interface
+	 * is up.  For all other cases, let the f/w know that the h/w is now
+	 * under the control of the driver. */
+	if (!(adapter->flags & FLAG_HAS_AMT) || !e1000e_check_mng_mode(&adapter->hw))
+		e1000_get_hw_control(adapter);
+
+	return 0;
+}
+#endif
+
+static void e1000_shutdown(struct pci_dev *pdev)
+{
+	e1000_suspend(pdev, PMSG_SUSPEND);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void e1000_netpoll(struct net_device *netdev)
+{
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	disable_irq(adapter->pdev->irq);
+	e1000_intr(adapter->pdev->irq, netdev);
+
+	e1000_clean_tx_irq(adapter);
+
+	enable_irq(adapter->pdev->irq);
+}
+#endif
+
+/**
+ * e1000_io_error_detected - called when PCI error is detected
+ * @pdev: Pointer to PCI device
+ * @state: The current pci connection state
+ *
+ * This function is called after a PCI bus error affecting
+ * this device has been detected.
+ */
+static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
+						pci_channel_state_t state)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	netif_device_detach(netdev);
+
+	if (netif_running(netdev))
+		e1000e_down(adapter);
+	pci_disable_device(pdev);
+
+	/* Request a slot slot reset. */
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * e1000_io_slot_reset - called after the pci bus has been reset.
+ * @pdev: Pointer to PCI device
+ *
+ * Restart the card from scratch, as if from a cold-boot. Implementation
+ * resembles the first-half of the e1000_resume routine.
+ */
+static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+	struct e1000_hw *hw = &adapter->hw;
+
+	if (pci_enable_device(pdev)) {
+		dev_err(&pdev->dev,
+			"Cannot re-enable PCI device after reset.\n");
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+	pci_set_master(pdev);
+
+	pci_enable_wake(pdev, PCI_D3hot, 0);
+	pci_enable_wake(pdev, PCI_D3cold, 0);
+
+	e1000e_reset(adapter);
+	ew32(WUS, ~0);
+
+	return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * e1000_io_resume - called when traffic can start flowing again.
+ * @pdev: Pointer to PCI device
+ *
+ * This callback is called when the error recovery driver tells us that
+ * its OK to resume normal operation. Implementation resembles the
+ * second-half of the e1000_resume routine.
+ */
+static void e1000_io_resume(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	e1000_init_manageability(adapter);
+
+	if (netif_running(netdev)) {
+		if (e1000e_up(adapter)) {
+			dev_err(&pdev->dev,
+				"can't bring device back up after reset\n");
+			return;
+		}
+	}
+
+	netif_device_attach(netdev);
+
+	/* If the controller has AMT, do not set DRV_LOAD until the interface
+	 * is up.  For all other cases, let the f/w know that the h/w is now
+	 * under the control of the driver. */
+	if (!(adapter->flags & FLAG_HAS_AMT) ||
+	    !e1000e_check_mng_mode(&adapter->hw))
+		e1000_get_hw_control(adapter);
+
+}
+
+static void e1000_print_device_info(struct e1000_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	struct net_device *netdev = adapter->netdev;
+	u32 part_num;
+
+	/* print bus type/speed/width info */
+	ndev_info(netdev, "(PCI Express:2.5GB/s:%s) "
+		  "%02x:%02x:%02x:%02x:%02x:%02x\n",
+		  /* bus width */
+		 ((hw->bus.width == e1000_bus_width_pcie_x4) ? "Width x4" :
+		  "Width x1"),
+		  /* MAC address */
+		  netdev->dev_addr[0], netdev->dev_addr[1],
+		  netdev->dev_addr[2], netdev->dev_addr[3],
+		  netdev->dev_addr[4], netdev->dev_addr[5]);
+	ndev_info(netdev, "Intel(R) PRO/%s Network Connection\n",
+		  (hw->phy.type == e1000_phy_ife)
+		   ? "10/100" : "1000");
+	e1000e_read_part_num(hw, &part_num);
+	ndev_info(netdev, "MAC: %d, PHY: %d, PBA No: %06x-%03x\n",
+		  hw->mac.type, hw->phy.type,
+		  (part_num >> 8), (part_num & 0xff));
+}
+
+/**
+ * e1000_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in e1000_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * e1000_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the adapter private structure,
+ * and a hardware reset occur.
+ **/
+static int __devinit e1000_probe(struct pci_dev *pdev,
+				 const struct pci_device_id *ent)
+{
+	struct net_device *netdev;
+	struct e1000_adapter *adapter;
+	struct e1000_hw *hw;
+	const struct e1000_info *ei = e1000_info_tbl[ent->driver_data];
+	unsigned long mmio_start, mmio_len;
+	unsigned long flash_start, flash_len;
+
+	static int cards_found;
+	int i, err, pci_using_dac;
+	u16 eeprom_data = 0;
+	u16 eeprom_apme_mask = E1000_EEPROM_APME;
+
+	err = pci_enable_device(pdev);
+	if (err)
+		return err;
+
+	pci_using_dac = 0;
+	err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+	if (!err) {
+		err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+		if (!err)
+			pci_using_dac = 1;
+	} else {
+		err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+		if (err) {
+			err = pci_set_consistent_dma_mask(pdev,
+							  DMA_32BIT_MASK);
+			if (err) {
+				dev_err(&pdev->dev, "No usable DMA "
+					"configuration, aborting\n");
+				goto err_dma;
+			}
+		}
+	}
+
+	err = pci_request_regions(pdev, e1000e_driver_name);
+	if (err)
+		goto err_pci_reg;
+
+	pci_set_master(pdev);
+
+	err = -ENOMEM;
+	netdev = alloc_etherdev(sizeof(struct e1000_adapter));
+	if (!netdev)
+		goto err_alloc_etherdev;
+
+	SET_MODULE_OWNER(netdev);
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+
+	pci_set_drvdata(pdev, netdev);
+	adapter = netdev_priv(netdev);
+	hw = &adapter->hw;
+	adapter->netdev = netdev;
+	adapter->pdev = pdev;
+	adapter->ei = ei;
+	adapter->pba = ei->pba;
+	adapter->flags = ei->flags;
+	adapter->hw.adapter = adapter;
+	adapter->hw.mac.type = ei->mac;
+	adapter->msg_enable = (1 << NETIF_MSG_DRV | NETIF_MSG_PROBE) - 1;
+
+	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)
+		goto err_ioremap;
+
+	if ((adapter->flags & FLAG_HAS_FLASH) &&
+	    (pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) {
+		flash_start = pci_resource_start(pdev, 1);
+		flash_len = pci_resource_len(pdev, 1);
+		adapter->hw.flash_address = ioremap(flash_start, flash_len);
+		if (!adapter->hw.flash_address)
+			goto err_flashmap;
+	}
+
+	/* construct the net_device struct */
+	netdev->open			= &e1000_open;
+	netdev->stop			= &e1000_close;
+	netdev->hard_start_xmit		= &e1000_xmit_frame;
+	netdev->get_stats		= &e1000_get_stats;
+	netdev->set_multicast_list	= &e1000_set_multi;
+	netdev->set_mac_address		= &e1000_set_mac;
+	netdev->change_mtu		= &e1000_change_mtu;
+	netdev->do_ioctl		= &e1000_ioctl;
+	e1000e_set_ethtool_ops(netdev);
+	netdev->tx_timeout		= &e1000_tx_timeout;
+	netdev->watchdog_timeo		= 5 * HZ;
+	netif_napi_add(netdev, &adapter->napi, e1000_clean, 64);
+	netdev->vlan_rx_register	= e1000_vlan_rx_register;
+	netdev->vlan_rx_add_vid		= e1000_vlan_rx_add_vid;
+	netdev->vlan_rx_kill_vid	= e1000_vlan_rx_kill_vid;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	netdev->poll_controller		= e1000_netpoll;
+#endif
+	strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
+
+	netdev->mem_start = mmio_start;
+	netdev->mem_end = mmio_start + mmio_len;
+
+	adapter->bd_number = cards_found++;
+
+	/* setup adapter struct */
+	err = e1000_sw_init(adapter);
+	if (err)
+		goto err_sw_init;
+
+	err = -EIO;
+
+	memcpy(&hw->mac.ops, ei->mac_ops, sizeof(hw->mac.ops));
+	memcpy(&hw->nvm.ops, ei->nvm_ops, sizeof(hw->nvm.ops));
+	memcpy(&hw->phy.ops, ei->phy_ops, sizeof(hw->phy.ops));
+
+	err = ei->get_invariants(adapter);
+	if (err)
+		goto err_hw_init;
+
+	hw->mac.ops.get_bus_info(&adapter->hw);
+
+	adapter->hw.phy.wait_for_link = 0;
+
+	/* Copper options */
+	if (adapter->hw.media_type == e1000_media_type_copper) {
+		adapter->hw.phy.mdix = AUTO_ALL_MODES;
+		adapter->hw.phy.disable_polarity_correction = 0;
+		adapter->hw.phy.ms_type = e1000_ms_hw_default;
+	}
+
+	if (e1000_check_reset_block(&adapter->hw))
+		ndev_info(netdev,
+			  "PHY reset is blocked due to SOL/IDER session.\n");
+
+	netdev->features = NETIF_F_SG |
+			   NETIF_F_HW_CSUM |
+			   NETIF_F_HW_VLAN_TX |
+			   NETIF_F_HW_VLAN_RX;
+
+	if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER)
+		netdev->features |= NETIF_F_HW_VLAN_FILTER;
+
+	netdev->features |= NETIF_F_TSO;
+	netdev->features |= NETIF_F_TSO6;
+
+	if (pci_using_dac)
+		netdev->features |= NETIF_F_HIGHDMA;
+
+	/* We should not be using LLTX anymore, but we are still TX faster with
+	 * it. */
+	netdev->features |= NETIF_F_LLTX;
+
+	if (e1000e_enable_mng_pass_thru(&adapter->hw))
+		adapter->flags |= FLAG_MNG_PT_ENABLED;
+
+	/* before reading the NVM, reset the controller to
+	 * put the device in a known good starting state */
+	adapter->hw.mac.ops.reset_hw(&adapter->hw);
+
+	/*
+	 * systems with ASPM and others may see the checksum fail on the first
+	 * attempt. Let's give it a few tries
+	 */
+	for (i = 0;; i++) {
+		if (e1000_validate_nvm_checksum(&adapter->hw) >= 0)
+			break;
+		if (i == 2) {
+			ndev_err(netdev, "The NVM Checksum Is Not Valid\n");
+			err = -EIO;
+			goto err_eeprom;
+		}
+	}
+
+	/* copy the MAC address out of the NVM */
+	if (e1000e_read_mac_addr(&adapter->hw))
+		ndev_err(netdev, "NVM Read Error while reading MAC address\n");
+
+	memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
+	memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len);
+
+	if (!is_valid_ether_addr(netdev->perm_addr)) {
+		ndev_err(netdev, "Invalid MAC Address: "
+			 "%02x:%02x:%02x:%02x:%02x:%02x\n",
+			 netdev->perm_addr[0], netdev->perm_addr[1],
+			 netdev->perm_addr[2], netdev->perm_addr[3],
+			 netdev->perm_addr[4], netdev->perm_addr[5]);
+		err = -EIO;
+		goto err_eeprom;
+	}
+
+	init_timer(&adapter->watchdog_timer);
+	adapter->watchdog_timer.function = &e1000_watchdog;
+	adapter->watchdog_timer.data = (unsigned long) adapter;
+
+	init_timer(&adapter->phy_info_timer);
+	adapter->phy_info_timer.function = &e1000_update_phy_info;
+	adapter->phy_info_timer.data = (unsigned long) adapter;
+
+	INIT_WORK(&adapter->reset_task, e1000_reset_task);
+	INIT_WORK(&adapter->watchdog_task, e1000_watchdog_task);
+
+	e1000e_check_options(adapter);
+
+	/* Initialize link parameters. User can change them with ethtool */
+	adapter->hw.mac.autoneg = 1;
+	adapter->hw.mac.original_fc = e1000_fc_default;
+	adapter->hw.mac.fc = e1000_fc_default;
+	adapter->hw.phy.autoneg_advertised = 0x2f;
+
+	/* ring size defaults */
+	adapter->rx_ring->count = 256;
+	adapter->tx_ring->count = 256;
+
+	/*
+	 * Initial Wake on LAN setting - If APM wake is enabled in
+	 * the EEPROM, enable the ACPI Magic Packet filter
+	 */
+	if (adapter->flags & FLAG_APME_IN_WUC) {
+		/* APME bit in EEPROM is mapped to WUC.APME */
+		eeprom_data = er32(WUC);
+		eeprom_apme_mask = E1000_WUC_APME;
+	} else if (adapter->flags & FLAG_APME_IN_CTRL3) {
+		if (adapter->flags & FLAG_APME_CHECK_PORT_B &&
+		    (adapter->hw.bus.func == 1))
+			e1000_read_nvm(&adapter->hw,
+				NVM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
+		else
+			e1000_read_nvm(&adapter->hw,
+				NVM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
+	}
+
+	/* fetch WoL from EEPROM */
+	if (eeprom_data & eeprom_apme_mask)
+		adapter->eeprom_wol |= E1000_WUFC_MAG;
+
+	/*
+	 * now that we have the eeprom settings, apply the special cases
+	 * where the eeprom may be wrong or the board simply won't support
+	 * wake on lan on a particular port
+	 */
+	if (!(adapter->flags & FLAG_HAS_WOL))
+		adapter->eeprom_wol = 0;
+
+	/* initialize the wol settings based on the eeprom settings */
+	adapter->wol = adapter->eeprom_wol;
+
+	/* reset the hardware with the new settings */
+	e1000e_reset(adapter);
+
+	/* If the controller has AMT, do not set DRV_LOAD until the interface
+	 * is up.  For all other cases, let the f/w know that the h/w is now
+	 * under the control of the driver. */
+	if (!(adapter->flags & FLAG_HAS_AMT) ||
+	    !e1000e_check_mng_mode(&adapter->hw))
+		e1000_get_hw_control(adapter);
+
+	/* tell the stack to leave us alone until e1000_open() is called */
+	netif_carrier_off(netdev);
+	netif_stop_queue(netdev);
+
+	strcpy(netdev->name, "eth%d");
+	err = register_netdev(netdev);
+	if (err)
+		goto err_register;
+
+	e1000_print_device_info(adapter);
+
+	return 0;
+
+err_register:
+err_hw_init:
+	e1000_release_hw_control(adapter);
+err_eeprom:
+	if (!e1000_check_reset_block(&adapter->hw))
+		e1000_phy_hw_reset(&adapter->hw);
+
+	if (adapter->hw.flash_address)
+		iounmap(adapter->hw.flash_address);
+
+err_flashmap:
+	kfree(adapter->tx_ring);
+	kfree(adapter->rx_ring);
+err_sw_init:
+	iounmap(adapter->hw.hw_addr);
+err_ioremap:
+	free_netdev(netdev);
+err_alloc_etherdev:
+	pci_release_regions(pdev);
+err_pci_reg:
+err_dma:
+	pci_disable_device(pdev);
+	return err;
+}
+
+/**
+ * e1000_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * e1000_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device.  The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+static void __devexit e1000_remove(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct e1000_adapter *adapter = netdev_priv(netdev);
+
+	/* flush_scheduled work may reschedule our watchdog task, so
+	 * explicitly disable watchdog tasks from being rescheduled  */
+	set_bit(__E1000_DOWN, &adapter->state);
+	del_timer_sync(&adapter->watchdog_timer);
+	del_timer_sync(&adapter->phy_info_timer);
+
+	flush_scheduled_work();
+
+	e1000_release_manageability(adapter);
+
+	/* Release control of h/w to f/w.  If f/w is AMT enabled, this
+	 * would have already happened in close and is redundant. */
+	e1000_release_hw_control(adapter);
+
+	unregister_netdev(netdev);
+
+	if (!e1000_check_reset_block(&adapter->hw))
+		e1000_phy_hw_reset(&adapter->hw);
+
+	kfree(adapter->tx_ring);
+	kfree(adapter->rx_ring);
+
+	iounmap(adapter->hw.hw_addr);
+	if (adapter->hw.flash_address)
+		iounmap(adapter->hw.flash_address);
+	pci_release_regions(pdev);
+
+	free_netdev(netdev);
+
+	pci_disable_device(pdev);
+}
+
+/* PCI Error Recovery (ERS) */
+static struct pci_error_handlers e1000_err_handler = {
+	.error_detected = e1000_io_error_detected,
+	.slot_reset = e1000_io_slot_reset,
+	.resume = e1000_io_resume,
+};
+
+static struct pci_device_id e1000_pci_tbl[] = {
+	/*
+	 * Support for 82571/2/3, es2lan and ich8 will be phased in
+	 * stepwise.
+
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_COPPER), board_82571 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_FIBER), board_82571 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_QUAD_COPPER), board_82571 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_QUAD_COPPER_LP), board_82571 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_QUAD_FIBER), board_82571 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_SERDES), board_82571 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI), board_82572 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_COPPER), board_82572 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_FIBER), board_82572 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_SERDES), board_82572 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82573E), board_82573 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82573E_IAMT), board_82573 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82573L), board_82573 },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_DPT),
+	  board_80003es2lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_SPT),
+	  board_80003es2lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_SERDES_DPT),
+	  board_80003es2lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_SERDES_SPT),
+	  board_80003es2lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE), board_ich8lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE_G), board_ich8lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE_GT), board_ich8lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_AMT), board_ich8lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_C), board_ich8lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_M), board_ich8lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_M_AMT), board_ich8lan },
+	*/
+
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE), board_ich9lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE_G), board_ich9lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE_GT), board_ich9lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_AMT), board_ich9lan },
+	{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_C), board_ich9lan },
+
+	{ }	/* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);
+
+/* PCI Device API Driver */
+static struct pci_driver e1000_driver = {
+	.name     = e1000e_driver_name,
+	.id_table = e1000_pci_tbl,
+	.probe    = e1000_probe,
+	.remove   = __devexit_p(e1000_remove),
+#ifdef CONFIG_PM
+	/* Power Managment Hooks */
+	.suspend  = e1000_suspend,
+	.resume   = e1000_resume,
+#endif
+	.shutdown = e1000_shutdown,
+	.err_handler = &e1000_err_handler
+};
+
+/**
+ * e1000_init_module - Driver Registration Routine
+ *
+ * e1000_init_module is the first routine called when the driver is
+ * loaded. All it does is register with the PCI subsystem.
+ **/
+static int __init e1000_init_module(void)
+{
+	int ret;
+	printk(KERN_INFO "%s: Intel(R) PRO/1000 Network Driver - %s\n",
+	       e1000e_driver_name, e1000e_driver_version);
+	printk(KERN_INFO "%s: Copyright (c) 1999-2007 Intel Corporation.\n",
+	       e1000e_driver_name);
+	ret = pci_register_driver(&e1000_driver);
+
+	return ret;
+}
+module_init(e1000_init_module);
+
+/**
+ * e1000_exit_module - Driver Exit Cleanup Routine
+ *
+ * e1000_exit_module is called just before the driver is removed
+ * from memory.
+ **/
+static void __exit e1000_exit_module(void)
+{
+	pci_unregister_driver(&e1000_driver);
+}
+module_exit(e1000_exit_module);
+
+
+MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
+MODULE_DESCRIPTION("Intel(R) PRO/1000 Network Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+/* e1000_main.c */