Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

11 files changed, 6274 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ixgb/Makefile b/drivers/net/ethernet/intel/ixgb/Makefile
new file mode 100644
index 000000000..2433e9300
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright(c) 1999 - 2008 Intel Corporation.
+#
+# Makefile for the Intel(R) PRO/10GbE ethernet driver
+#
+
+obj-$(CONFIG_IXGB) += ixgb.o
+
+ixgb-objs := ixgb_main.o ixgb_hw.o ixgb_ee.o ixgb_ethtool.o ixgb_param.o
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb.h b/drivers/net/ethernet/intel/ixgb/ixgb.h
new file mode 100644
index 000000000..81ac39576
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/ixgb.h
@@ -0,0 +1,179 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2008 Intel Corporation. */
+
+#ifndef _IXGB_H_
+#define _IXGB_H_
+
+#include <linux/stddef.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <linux/mm.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+#include <linux/pagemap.h>
+#include <linux/dma-mapping.h>
+#include <linux/bitops.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <linux/capability.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <net/pkt_sched.h>
+#include <linux/list.h>
+#include <linux/reboot.h>
+#include <net/checksum.h>
+
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+
+#define BAR_0		0
+#define BAR_1		1
+
+struct ixgb_adapter;
+#include "ixgb_hw.h"
+#include "ixgb_ee.h"
+#include "ixgb_ids.h"
+
+/* TX/RX descriptor defines */
+#define DEFAULT_TXD      256
+#define MAX_TXD         4096
+#define MIN_TXD           64
+
+/* hardware cannot reliably support more than 512 descriptors owned by
+ * hardware descriptor cache otherwise an unreliable ring under heavy
+ * receive load may result */
+#define DEFAULT_RXD      512
+#define MAX_RXD          512
+#define MIN_RXD           64
+
+/* Supported Rx Buffer Sizes */
+#define IXGB_RXBUFFER_2048  2048
+#define IXGB_RXBUFFER_4096  4096
+#define IXGB_RXBUFFER_8192  8192
+#define IXGB_RXBUFFER_16384 16384
+
+/* How many Rx Buffers do we bundle into one write to the hardware ? */
+#define IXGB_RX_BUFFER_WRITE	8	/* Must be power of 2 */
+
+/* wrapper around a pointer to a socket buffer,
+ * so a DMA handle can be stored along with the buffer */
+struct ixgb_buffer {
+	struct sk_buff *skb;
+	dma_addr_t dma;
+	unsigned long time_stamp;
+	u16 length;
+	u16 next_to_watch;
+	u16 mapped_as_page;
+};
+
+struct ixgb_desc_ring {
+	/* pointer to the descriptor ring memory */
+	void *desc;
+	/* physical address of the descriptor ring */
+	dma_addr_t dma;
+	/* length of descriptor ring in bytes */
+	unsigned int size;
+	/* number of descriptors in the ring */
+	unsigned int count;
+	/* next descriptor to associate a buffer with */
+	unsigned int next_to_use;
+	/* next descriptor to check for DD status bit */
+	unsigned int next_to_clean;
+	/* array of buffer information structs */
+	struct ixgb_buffer *buffer_info;
+};
+
+#define IXGB_DESC_UNUSED(R) \
+	((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
+	(R)->next_to_clean - (R)->next_to_use - 1)
+
+#define IXGB_GET_DESC(R, i, type)	(&(((struct type *)((R).desc))[i]))
+#define IXGB_RX_DESC(R, i)		IXGB_GET_DESC(R, i, ixgb_rx_desc)
+#define IXGB_TX_DESC(R, i)		IXGB_GET_DESC(R, i, ixgb_tx_desc)
+#define IXGB_CONTEXT_DESC(R, i)	IXGB_GET_DESC(R, i, ixgb_context_desc)
+
+/* board specific private data structure */
+
+struct ixgb_adapter {
+	struct timer_list watchdog_timer;
+	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+	u32 bd_number;
+	u32 rx_buffer_len;
+	u32 part_num;
+	u16 link_speed;
+	u16 link_duplex;
+	struct work_struct tx_timeout_task;
+
+	/* TX */
+	struct ixgb_desc_ring tx_ring ____cacheline_aligned_in_smp;
+	unsigned int restart_queue;
+	unsigned long timeo_start;
+	u32 tx_cmd_type;
+	u64 hw_csum_tx_good;
+	u64 hw_csum_tx_error;
+	u32 tx_int_delay;
+	u32 tx_timeout_count;
+	bool tx_int_delay_enable;
+	bool detect_tx_hung;
+
+	/* RX */
+	struct ixgb_desc_ring rx_ring;
+	u64 hw_csum_rx_error;
+	u64 hw_csum_rx_good;
+	u32 rx_int_delay;
+	bool rx_csum;
+
+	/* OS defined structs */
+	struct napi_struct napi;
+	struct net_device *netdev;
+	struct pci_dev *pdev;
+
+	/* structs defined in ixgb_hw.h */
+	struct ixgb_hw hw;
+	u16 msg_enable;
+	struct ixgb_hw_stats stats;
+	u32 alloc_rx_buff_failed;
+	bool have_msi;
+	unsigned long flags;
+};
+
+enum ixgb_state_t {
+	/* TBD
+	__IXGB_TESTING,
+	__IXGB_RESETTING,
+	*/
+	__IXGB_DOWN
+};
+
+/* Exported from other modules */
+void ixgb_check_options(struct ixgb_adapter *adapter);
+void ixgb_set_ethtool_ops(struct net_device *netdev);
+extern char ixgb_driver_name[];
+
+void ixgb_set_speed_duplex(struct net_device *netdev);
+
+int ixgb_up(struct ixgb_adapter *adapter);
+void ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog);
+void ixgb_reset(struct ixgb_adapter *adapter);
+int ixgb_setup_rx_resources(struct ixgb_adapter *adapter);
+int ixgb_setup_tx_resources(struct ixgb_adapter *adapter);
+void ixgb_free_rx_resources(struct ixgb_adapter *adapter);
+void ixgb_free_tx_resources(struct ixgb_adapter *adapter);
+void ixgb_update_stats(struct ixgb_adapter *adapter);
+
+
+#endif /* _IXGB_H_ */
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_ee.c b/drivers/net/ethernet/intel/ixgb/ixgb_ee.c
new file mode 100644
index 000000000..129286fc1
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_ee.c
@@ -0,0 +1,580 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2008 Intel Corporation. */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "ixgb_hw.h"
+#include "ixgb_ee.h"
+/* Local prototypes */
+static u16 ixgb_shift_in_bits(struct ixgb_hw *hw);
+
+static void ixgb_shift_out_bits(struct ixgb_hw *hw,
+				u16 data,
+				u16 count);
+static void ixgb_standby_eeprom(struct ixgb_hw *hw);
+
+static bool ixgb_wait_eeprom_command(struct ixgb_hw *hw);
+
+static void ixgb_cleanup_eeprom(struct ixgb_hw *hw);
+
+/******************************************************************************
+ * Raises the EEPROM's clock input.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * eecd_reg - EECD's current value
+ *****************************************************************************/
+static void
+ixgb_raise_clock(struct ixgb_hw *hw,
+		  u32 *eecd_reg)
+{
+	/* Raise the clock input to the EEPROM (by setting the SK bit), and then
+	 *  wait 50 microseconds.
+	 */
+	*eecd_reg = *eecd_reg | IXGB_EECD_SK;
+	IXGB_WRITE_REG(hw, EECD, *eecd_reg);
+	IXGB_WRITE_FLUSH(hw);
+	udelay(50);
+}
+
+/******************************************************************************
+ * Lowers the EEPROM's clock input.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * eecd_reg - EECD's current value
+ *****************************************************************************/
+static void
+ixgb_lower_clock(struct ixgb_hw *hw,
+		  u32 *eecd_reg)
+{
+	/* Lower the clock input to the EEPROM (by clearing the SK bit), and then
+	 * wait 50 microseconds.
+	 */
+	*eecd_reg = *eecd_reg & ~IXGB_EECD_SK;
+	IXGB_WRITE_REG(hw, EECD, *eecd_reg);
+	IXGB_WRITE_FLUSH(hw);
+	udelay(50);
+}
+
+/******************************************************************************
+ * Shift data bits out to the EEPROM.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * data - data to send to the EEPROM
+ * count - number of bits to shift out
+ *****************************************************************************/
+static void
+ixgb_shift_out_bits(struct ixgb_hw *hw,
+					 u16 data,
+					 u16 count)
+{
+	u32 eecd_reg;
+	u32 mask;
+
+	/* We need to shift "count" bits out to the EEPROM. So, value in the
+	 * "data" parameter will be shifted out to the EEPROM one bit at a time.
+	 * In order to do this, "data" must be broken down into bits.
+	 */
+	mask = 0x01 << (count - 1);
+	eecd_reg = IXGB_READ_REG(hw, EECD);
+	eecd_reg &= ~(IXGB_EECD_DO | IXGB_EECD_DI);
+	do {
+		/* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1",
+		 * and then raising and then lowering the clock (the SK bit controls
+		 * the clock input to the EEPROM).  A "0" is shifted out to the EEPROM
+		 * by setting "DI" to "0" and then raising and then lowering the clock.
+		 */
+		eecd_reg &= ~IXGB_EECD_DI;
+
+		if (data & mask)
+			eecd_reg |= IXGB_EECD_DI;
+
+		IXGB_WRITE_REG(hw, EECD, eecd_reg);
+		IXGB_WRITE_FLUSH(hw);
+
+		udelay(50);
+
+		ixgb_raise_clock(hw, &eecd_reg);
+		ixgb_lower_clock(hw, &eecd_reg);
+
+		mask = mask >> 1;
+
+	} while (mask);
+
+	/* We leave the "DI" bit set to "0" when we leave this routine. */
+	eecd_reg &= ~IXGB_EECD_DI;
+	IXGB_WRITE_REG(hw, EECD, eecd_reg);
+}
+
+/******************************************************************************
+ * Shift data bits in from the EEPROM
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static u16
+ixgb_shift_in_bits(struct ixgb_hw *hw)
+{
+	u32 eecd_reg;
+	u32 i;
+	u16 data;
+
+	/* In order to read a register from the EEPROM, we need to shift 16 bits
+	 * in from the EEPROM. Bits are "shifted in" by raising the clock input to
+	 * the EEPROM (setting the SK bit), and then reading the value of the "DO"
+	 * bit.  During this "shifting in" process the "DI" bit should always be
+	 * clear..
+	 */
+
+	eecd_reg = IXGB_READ_REG(hw, EECD);
+
+	eecd_reg &= ~(IXGB_EECD_DO | IXGB_EECD_DI);
+	data = 0;
+
+	for (i = 0; i < 16; i++) {
+		data = data << 1;
+		ixgb_raise_clock(hw, &eecd_reg);
+
+		eecd_reg = IXGB_READ_REG(hw, EECD);
+
+		eecd_reg &= ~(IXGB_EECD_DI);
+		if (eecd_reg & IXGB_EECD_DO)
+			data |= 1;
+
+		ixgb_lower_clock(hw, &eecd_reg);
+	}
+
+	return data;
+}
+
+/******************************************************************************
+ * Prepares EEPROM for access
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This
+ * function should be called before issuing a command to the EEPROM.
+ *****************************************************************************/
+static void
+ixgb_setup_eeprom(struct ixgb_hw *hw)
+{
+	u32 eecd_reg;
+
+	eecd_reg = IXGB_READ_REG(hw, EECD);
+
+	/*  Clear SK and DI  */
+	eecd_reg &= ~(IXGB_EECD_SK | IXGB_EECD_DI);
+	IXGB_WRITE_REG(hw, EECD, eecd_reg);
+
+	/*  Set CS  */
+	eecd_reg |= IXGB_EECD_CS;
+	IXGB_WRITE_REG(hw, EECD, eecd_reg);
+}
+
+/******************************************************************************
+ * Returns EEPROM to a "standby" state
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static void
+ixgb_standby_eeprom(struct ixgb_hw *hw)
+{
+	u32 eecd_reg;
+
+	eecd_reg = IXGB_READ_REG(hw, EECD);
+
+	/*  Deselect EEPROM  */
+	eecd_reg &= ~(IXGB_EECD_CS | IXGB_EECD_SK);
+	IXGB_WRITE_REG(hw, EECD, eecd_reg);
+	IXGB_WRITE_FLUSH(hw);
+	udelay(50);
+
+	/*  Clock high  */
+	eecd_reg |= IXGB_EECD_SK;
+	IXGB_WRITE_REG(hw, EECD, eecd_reg);
+	IXGB_WRITE_FLUSH(hw);
+	udelay(50);
+
+	/*  Select EEPROM  */
+	eecd_reg |= IXGB_EECD_CS;
+	IXGB_WRITE_REG(hw, EECD, eecd_reg);
+	IXGB_WRITE_FLUSH(hw);
+	udelay(50);
+
+	/*  Clock low  */
+	eecd_reg &= ~IXGB_EECD_SK;
+	IXGB_WRITE_REG(hw, EECD, eecd_reg);
+	IXGB_WRITE_FLUSH(hw);
+	udelay(50);
+}
+
+/******************************************************************************
+ * Raises then lowers the EEPROM's clock pin
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static void
+ixgb_clock_eeprom(struct ixgb_hw *hw)
+{
+	u32 eecd_reg;
+
+	eecd_reg = IXGB_READ_REG(hw, EECD);
+
+	/*  Rising edge of clock  */
+	eecd_reg |= IXGB_EECD_SK;
+	IXGB_WRITE_REG(hw, EECD, eecd_reg);
+	IXGB_WRITE_FLUSH(hw);
+	udelay(50);
+
+	/*  Falling edge of clock  */
+	eecd_reg &= ~IXGB_EECD_SK;
+	IXGB_WRITE_REG(hw, EECD, eecd_reg);
+	IXGB_WRITE_FLUSH(hw);
+	udelay(50);
+}
+
+/******************************************************************************
+ * Terminates a command by lowering the EEPROM's chip select pin
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static void
+ixgb_cleanup_eeprom(struct ixgb_hw *hw)
+{
+	u32 eecd_reg;
+
+	eecd_reg = IXGB_READ_REG(hw, EECD);
+
+	eecd_reg &= ~(IXGB_EECD_CS | IXGB_EECD_DI);
+
+	IXGB_WRITE_REG(hw, EECD, eecd_reg);
+
+	ixgb_clock_eeprom(hw);
+}
+
+/******************************************************************************
+ * Waits for the EEPROM to finish the current command.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * The command is done when the EEPROM's data out pin goes high.
+ *
+ * Returns:
+ *      true: EEPROM data pin is high before timeout.
+ *      false:  Time expired.
+ *****************************************************************************/
+static bool
+ixgb_wait_eeprom_command(struct ixgb_hw *hw)
+{
+	u32 eecd_reg;
+	u32 i;
+
+	/* Toggle the CS line.  This in effect tells to EEPROM to actually execute
+	 * the command in question.
+	 */
+	ixgb_standby_eeprom(hw);
+
+	/* Now read DO repeatedly until is high (equal to '1').  The EEPROM will
+	 * signal that the command has been completed by raising the DO signal.
+	 * If DO does not go high in 10 milliseconds, then error out.
+	 */
+	for (i = 0; i < 200; i++) {
+		eecd_reg = IXGB_READ_REG(hw, EECD);
+
+		if (eecd_reg & IXGB_EECD_DO)
+			return true;
+
+		udelay(50);
+	}
+	ASSERT(0);
+	return false;
+}
+
+/******************************************************************************
+ * Verifies that the EEPROM has a valid checksum
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Reads the first 64 16 bit words of the EEPROM and sums the values read.
+ * If the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is
+ * valid.
+ *
+ * Returns:
+ *  true: Checksum is valid
+ *  false: Checksum is not valid.
+ *****************************************************************************/
+bool
+ixgb_validate_eeprom_checksum(struct ixgb_hw *hw)
+{
+	u16 checksum = 0;
+	u16 i;
+
+	for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++)
+		checksum += ixgb_read_eeprom(hw, i);
+
+	if (checksum == (u16) EEPROM_SUM)
+		return true;
+	else
+		return false;
+}
+
+/******************************************************************************
+ * Calculates the EEPROM checksum and writes it to the EEPROM
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Sums the first 63 16 bit words of the EEPROM. Subtracts the sum from 0xBABA.
+ * Writes the difference to word offset 63 of the EEPROM.
+ *****************************************************************************/
+void
+ixgb_update_eeprom_checksum(struct ixgb_hw *hw)
+{
+	u16 checksum = 0;
+	u16 i;
+
+	for (i = 0; i < EEPROM_CHECKSUM_REG; i++)
+		checksum += ixgb_read_eeprom(hw, i);
+
+	checksum = (u16) EEPROM_SUM - checksum;
+
+	ixgb_write_eeprom(hw, EEPROM_CHECKSUM_REG, checksum);
+}
+
+/******************************************************************************
+ * Writes a 16 bit word to a given offset in the EEPROM.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * reg - offset within the EEPROM to be written to
+ * data - 16 bit word to be written to the EEPROM
+ *
+ * If ixgb_update_eeprom_checksum is not called after this function, the
+ * EEPROM will most likely contain an invalid checksum.
+ *
+ *****************************************************************************/
+void
+ixgb_write_eeprom(struct ixgb_hw *hw, u16 offset, u16 data)
+{
+	struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
+
+	/* Prepare the EEPROM for writing */
+	ixgb_setup_eeprom(hw);
+
+	/*  Send the 9-bit EWEN (write enable) command to the EEPROM (5-bit opcode
+	 *  plus 4-bit dummy).  This puts the EEPROM into write/erase mode.
+	 */
+	ixgb_shift_out_bits(hw, EEPROM_EWEN_OPCODE, 5);
+	ixgb_shift_out_bits(hw, 0, 4);
+
+	/*  Prepare the EEPROM  */
+	ixgb_standby_eeprom(hw);
+
+	/*  Send the Write command (3-bit opcode + 6-bit addr)  */
+	ixgb_shift_out_bits(hw, EEPROM_WRITE_OPCODE, 3);
+	ixgb_shift_out_bits(hw, offset, 6);
+
+	/*  Send the data  */
+	ixgb_shift_out_bits(hw, data, 16);
+
+	ixgb_wait_eeprom_command(hw);
+
+	/*  Recover from write  */
+	ixgb_standby_eeprom(hw);
+
+	/* Send the 9-bit EWDS (write disable) command to the EEPROM (5-bit
+	 * opcode plus 4-bit dummy).  This takes the EEPROM out of write/erase
+	 * mode.
+	 */
+	ixgb_shift_out_bits(hw, EEPROM_EWDS_OPCODE, 5);
+	ixgb_shift_out_bits(hw, 0, 4);
+
+	/*  Done with writing  */
+	ixgb_cleanup_eeprom(hw);
+
+	/* clear the init_ctrl_reg_1 to signify that the cache is invalidated */
+	ee_map->init_ctrl_reg_1 = cpu_to_le16(EEPROM_ICW1_SIGNATURE_CLEAR);
+}
+
+/******************************************************************************
+ * Reads a 16 bit word from the EEPROM.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * offset - offset of 16 bit word in the EEPROM to read
+ *
+ * Returns:
+ *  The 16-bit value read from the eeprom
+ *****************************************************************************/
+u16
+ixgb_read_eeprom(struct ixgb_hw *hw,
+		  u16 offset)
+{
+	u16 data;
+
+	/*  Prepare the EEPROM for reading  */
+	ixgb_setup_eeprom(hw);
+
+	/*  Send the READ command (opcode + addr)  */
+	ixgb_shift_out_bits(hw, EEPROM_READ_OPCODE, 3);
+	/*
+	 * We have a 64 word EEPROM, there are 6 address bits
+	 */
+	ixgb_shift_out_bits(hw, offset, 6);
+
+	/*  Read the data  */
+	data = ixgb_shift_in_bits(hw);
+
+	/*  End this read operation  */
+	ixgb_standby_eeprom(hw);
+
+	return data;
+}
+
+/******************************************************************************
+ * Reads eeprom and stores data in shared structure.
+ * Validates eeprom checksum and eeprom signature.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Returns:
+ *      true: if eeprom read is successful
+ *      false: otherwise.
+ *****************************************************************************/
+bool
+ixgb_get_eeprom_data(struct ixgb_hw *hw)
+{
+	u16 i;
+	u16 checksum = 0;
+	struct ixgb_ee_map_type *ee_map;
+
+	ENTER();
+
+	ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
+
+	pr_debug("Reading eeprom data\n");
+	for (i = 0; i < IXGB_EEPROM_SIZE ; i++) {
+		u16 ee_data;
+		ee_data = ixgb_read_eeprom(hw, i);
+		checksum += ee_data;
+		hw->eeprom[i] = cpu_to_le16(ee_data);
+	}
+
+	if (checksum != (u16) EEPROM_SUM) {
+		pr_debug("Checksum invalid\n");
+		/* clear the init_ctrl_reg_1 to signify that the cache is
+		 * invalidated */
+		ee_map->init_ctrl_reg_1 = cpu_to_le16(EEPROM_ICW1_SIGNATURE_CLEAR);
+		return false;
+	}
+
+	if ((ee_map->init_ctrl_reg_1 & cpu_to_le16(EEPROM_ICW1_SIGNATURE_MASK))
+		 != cpu_to_le16(EEPROM_ICW1_SIGNATURE_VALID)) {
+		pr_debug("Signature invalid\n");
+		return false;
+	}
+
+	return true;
+}
+
+/******************************************************************************
+ * Local function to check if the eeprom signature is good
+ * If the eeprom signature is good, calls ixgb)get_eeprom_data.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Returns:
+ *      true: eeprom signature was good and the eeprom read was successful
+ *      false: otherwise.
+ ******************************************************************************/
+static bool
+ixgb_check_and_get_eeprom_data (struct ixgb_hw* hw)
+{
+	struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
+
+	if ((ee_map->init_ctrl_reg_1 & cpu_to_le16(EEPROM_ICW1_SIGNATURE_MASK))
+	    == cpu_to_le16(EEPROM_ICW1_SIGNATURE_VALID)) {
+		return true;
+	} else {
+		return ixgb_get_eeprom_data(hw);
+	}
+}
+
+/******************************************************************************
+ * return a word from the eeprom
+ *
+ * hw - Struct containing variables accessed by shared code
+ * index - Offset of eeprom word
+ *
+ * Returns:
+ *          Word at indexed offset in eeprom, if valid, 0 otherwise.
+ ******************************************************************************/
+__le16
+ixgb_get_eeprom_word(struct ixgb_hw *hw, u16 index)
+{
+
+	if (index < IXGB_EEPROM_SIZE && ixgb_check_and_get_eeprom_data(hw))
+		return hw->eeprom[index];
+
+	return 0;
+}
+
+/******************************************************************************
+ * return the mac address from EEPROM
+ *
+ * hw       - Struct containing variables accessed by shared code
+ * mac_addr - Ethernet Address if EEPROM contents are valid, 0 otherwise
+ *
+ * Returns: None.
+ ******************************************************************************/
+void
+ixgb_get_ee_mac_addr(struct ixgb_hw *hw,
+			u8 *mac_addr)
+{
+	int i;
+	struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
+
+	ENTER();
+
+	if (ixgb_check_and_get_eeprom_data(hw)) {
+		for (i = 0; i < ETH_ALEN; i++) {
+			mac_addr[i] = ee_map->mac_addr[i];
+		}
+		pr_debug("eeprom mac address = %pM\n", mac_addr);
+	}
+}
+
+
+/******************************************************************************
+ * return the Printed Board Assembly number from EEPROM
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Returns:
+ *          PBA number if EEPROM contents are valid, 0 otherwise
+ ******************************************************************************/
+u32
+ixgb_get_ee_pba_number(struct ixgb_hw *hw)
+{
+	if (ixgb_check_and_get_eeprom_data(hw))
+		return le16_to_cpu(hw->eeprom[EEPROM_PBA_1_2_REG])
+			| (le16_to_cpu(hw->eeprom[EEPROM_PBA_3_4_REG])<<16);
+
+	return 0;
+}
+
+
+/******************************************************************************
+ * return the Device Id from EEPROM
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Returns:
+ *          Device Id if EEPROM contents are valid, 0 otherwise
+ ******************************************************************************/
+u16
+ixgb_get_ee_device_id(struct ixgb_hw *hw)
+{
+	struct ixgb_ee_map_type *ee_map = (struct ixgb_ee_map_type *)hw->eeprom;
+
+	if (ixgb_check_and_get_eeprom_data(hw))
+		return le16_to_cpu(ee_map->device_id);
+
+	return 0;
+}
+
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_ee.h b/drivers/net/ethernet/intel/ixgb/ixgb_ee.h
new file mode 100644
index 000000000..3ee0a09e5
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_ee.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2008 Intel Corporation. */
+
+#ifndef _IXGB_EE_H_
+#define _IXGB_EE_H_
+
+#define IXGB_EEPROM_SIZE    64	/* Size in words */
+
+/* EEPROM Commands */
+#define EEPROM_READ_OPCODE  0x6	/* EEPROM read opcode */
+#define EEPROM_WRITE_OPCODE 0x5	/* EEPROM write opcode */
+#define EEPROM_ERASE_OPCODE 0x7	/* EEPROM erase opcode */
+#define EEPROM_EWEN_OPCODE  0x13	/* EEPROM erase/write enable */
+#define EEPROM_EWDS_OPCODE  0x10	/* EEPROM erase/write disable */
+
+/* EEPROM MAP (Word Offsets) */
+#define EEPROM_IA_1_2_REG        0x0000
+#define EEPROM_IA_3_4_REG        0x0001
+#define EEPROM_IA_5_6_REG        0x0002
+#define EEPROM_COMPATIBILITY_REG 0x0003
+#define EEPROM_PBA_1_2_REG       0x0008
+#define EEPROM_PBA_3_4_REG       0x0009
+#define EEPROM_INIT_CONTROL1_REG 0x000A
+#define EEPROM_SUBSYS_ID_REG     0x000B
+#define EEPROM_SUBVEND_ID_REG    0x000C
+#define EEPROM_DEVICE_ID_REG     0x000D
+#define EEPROM_VENDOR_ID_REG     0x000E
+#define EEPROM_INIT_CONTROL2_REG 0x000F
+#define EEPROM_SWDPINS_REG       0x0020
+#define EEPROM_CIRCUIT_CTRL_REG  0x0021
+#define EEPROM_D0_D3_POWER_REG   0x0022
+#define EEPROM_FLASH_VERSION     0x0032
+#define EEPROM_CHECKSUM_REG      0x003F
+
+/* Mask bits for fields in Word 0x0a of the EEPROM */
+
+#define EEPROM_ICW1_SIGNATURE_MASK  0xC000
+#define EEPROM_ICW1_SIGNATURE_VALID 0x4000
+#define EEPROM_ICW1_SIGNATURE_CLEAR 0x0000
+
+/* For checksumming, the sum of all words in the EEPROM should equal 0xBABA. */
+#define EEPROM_SUM 0xBABA
+
+/* EEPROM Map Sizes (Byte Counts) */
+#define PBA_SIZE 4
+
+/* EEPROM Map defines (WORD OFFSETS)*/
+
+/* EEPROM structure */
+struct ixgb_ee_map_type {
+	u8 mac_addr[ETH_ALEN];
+	__le16 compatibility;
+	__le16 reserved1[4];
+	__le32 pba_number;
+	__le16 init_ctrl_reg_1;
+	__le16 subsystem_id;
+	__le16 subvendor_id;
+	__le16 device_id;
+	__le16 vendor_id;
+	__le16 init_ctrl_reg_2;
+	__le16 oem_reserved[16];
+	__le16 swdpins_reg;
+	__le16 circuit_ctrl_reg;
+	u8 d3_power;
+	u8 d0_power;
+	__le16 reserved2[28];
+	__le16 checksum;
+};
+
+/* EEPROM Functions */
+u16 ixgb_read_eeprom(struct ixgb_hw *hw, u16 reg);
+
+bool ixgb_validate_eeprom_checksum(struct ixgb_hw *hw);
+
+void ixgb_update_eeprom_checksum(struct ixgb_hw *hw);
+
+void ixgb_write_eeprom(struct ixgb_hw *hw, u16 reg, u16 data);
+
+#endif				/* IXGB_EE_H */
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_ethtool.c b/drivers/net/ethernet/intel/ixgb/ixgb_ethtool.c
new file mode 100644
index 000000000..efa980514
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_ethtool.c
@@ -0,0 +1,642 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2008 Intel Corporation. */
+
+/* ethtool support for ixgb */
+
+#include "ixgb.h"
+
+#include <linux/uaccess.h>
+
+#define IXGB_ALL_RAR_ENTRIES 16
+
+enum {NETDEV_STATS, IXGB_STATS};
+
+struct ixgb_stats {
+	char stat_string[ETH_GSTRING_LEN];
+	int type;
+	int sizeof_stat;
+	int stat_offset;
+};
+
+#define IXGB_STAT(m)		IXGB_STATS, \
+				sizeof_field(struct ixgb_adapter, m), \
+				offsetof(struct ixgb_adapter, m)
+#define IXGB_NETDEV_STAT(m)	NETDEV_STATS, \
+				sizeof_field(struct net_device, m), \
+				offsetof(struct net_device, m)
+
+static struct ixgb_stats ixgb_gstrings_stats[] = {
+	{"rx_packets", IXGB_NETDEV_STAT(stats.rx_packets)},
+	{"tx_packets", IXGB_NETDEV_STAT(stats.tx_packets)},
+	{"rx_bytes", IXGB_NETDEV_STAT(stats.rx_bytes)},
+	{"tx_bytes", IXGB_NETDEV_STAT(stats.tx_bytes)},
+	{"rx_errors", IXGB_NETDEV_STAT(stats.rx_errors)},
+	{"tx_errors", IXGB_NETDEV_STAT(stats.tx_errors)},
+	{"rx_dropped", IXGB_NETDEV_STAT(stats.rx_dropped)},
+	{"tx_dropped", IXGB_NETDEV_STAT(stats.tx_dropped)},
+	{"multicast", IXGB_NETDEV_STAT(stats.multicast)},
+	{"collisions", IXGB_NETDEV_STAT(stats.collisions)},
+
+/*	{ "rx_length_errors", IXGB_NETDEV_STAT(stats.rx_length_errors) },	*/
+	{"rx_over_errors", IXGB_NETDEV_STAT(stats.rx_over_errors)},
+	{"rx_crc_errors", IXGB_NETDEV_STAT(stats.rx_crc_errors)},
+	{"rx_frame_errors", IXGB_NETDEV_STAT(stats.rx_frame_errors)},
+	{"rx_no_buffer_count", IXGB_STAT(stats.rnbc)},
+	{"rx_fifo_errors", IXGB_NETDEV_STAT(stats.rx_fifo_errors)},
+	{"rx_missed_errors", IXGB_NETDEV_STAT(stats.rx_missed_errors)},
+	{"tx_aborted_errors", IXGB_NETDEV_STAT(stats.tx_aborted_errors)},
+	{"tx_carrier_errors", IXGB_NETDEV_STAT(stats.tx_carrier_errors)},
+	{"tx_fifo_errors", IXGB_NETDEV_STAT(stats.tx_fifo_errors)},
+	{"tx_heartbeat_errors", IXGB_NETDEV_STAT(stats.tx_heartbeat_errors)},
+	{"tx_window_errors", IXGB_NETDEV_STAT(stats.tx_window_errors)},
+	{"tx_deferred_ok", IXGB_STAT(stats.dc)},
+	{"tx_timeout_count", IXGB_STAT(tx_timeout_count) },
+	{"tx_restart_queue", IXGB_STAT(restart_queue) },
+	{"rx_long_length_errors", IXGB_STAT(stats.roc)},
+	{"rx_short_length_errors", IXGB_STAT(stats.ruc)},
+	{"tx_tcp_seg_good", IXGB_STAT(stats.tsctc)},
+	{"tx_tcp_seg_failed", IXGB_STAT(stats.tsctfc)},
+	{"rx_flow_control_xon", IXGB_STAT(stats.xonrxc)},
+	{"rx_flow_control_xoff", IXGB_STAT(stats.xoffrxc)},
+	{"tx_flow_control_xon", IXGB_STAT(stats.xontxc)},
+	{"tx_flow_control_xoff", IXGB_STAT(stats.xofftxc)},
+	{"rx_csum_offload_good", IXGB_STAT(hw_csum_rx_good)},
+	{"rx_csum_offload_errors", IXGB_STAT(hw_csum_rx_error)},
+	{"tx_csum_offload_good", IXGB_STAT(hw_csum_tx_good)},
+	{"tx_csum_offload_errors", IXGB_STAT(hw_csum_tx_error)}
+};
+
+#define IXGB_STATS_LEN	ARRAY_SIZE(ixgb_gstrings_stats)
+
+static int
+ixgb_get_link_ksettings(struct net_device *netdev,
+			struct ethtool_link_ksettings *cmd)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+
+	ethtool_link_ksettings_zero_link_mode(cmd, supported);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, 10000baseT_Full);
+	ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
+
+	ethtool_link_ksettings_zero_link_mode(cmd, advertising);
+	ethtool_link_ksettings_add_link_mode(cmd, advertising, 10000baseT_Full);
+	ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
+
+	cmd->base.port = PORT_FIBRE;
+
+	if (netif_carrier_ok(adapter->netdev)) {
+		cmd->base.speed = SPEED_10000;
+		cmd->base.duplex = DUPLEX_FULL;
+	} else {
+		cmd->base.speed = SPEED_UNKNOWN;
+		cmd->base.duplex = DUPLEX_UNKNOWN;
+	}
+
+	cmd->base.autoneg = AUTONEG_DISABLE;
+	return 0;
+}
+
+void ixgb_set_speed_duplex(struct net_device *netdev)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	/* be optimistic about our link, since we were up before */
+	adapter->link_speed = 10000;
+	adapter->link_duplex = FULL_DUPLEX;
+	netif_carrier_on(netdev);
+	netif_wake_queue(netdev);
+}
+
+static int
+ixgb_set_link_ksettings(struct net_device *netdev,
+			const struct ethtool_link_ksettings *cmd)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	u32 speed = cmd->base.speed;
+
+	if (cmd->base.autoneg == AUTONEG_ENABLE ||
+	    (speed + cmd->base.duplex != SPEED_10000 + DUPLEX_FULL))
+		return -EINVAL;
+
+	if (netif_running(adapter->netdev)) {
+		ixgb_down(adapter, true);
+		ixgb_reset(adapter);
+		ixgb_up(adapter);
+		ixgb_set_speed_duplex(netdev);
+	} else
+		ixgb_reset(adapter);
+
+	return 0;
+}
+
+static void
+ixgb_get_pauseparam(struct net_device *netdev,
+			 struct ethtool_pauseparam *pause)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct ixgb_hw *hw = &adapter->hw;
+
+	pause->autoneg = AUTONEG_DISABLE;
+
+	if (hw->fc.type == ixgb_fc_rx_pause)
+		pause->rx_pause = 1;
+	else if (hw->fc.type == ixgb_fc_tx_pause)
+		pause->tx_pause = 1;
+	else if (hw->fc.type == ixgb_fc_full) {
+		pause->rx_pause = 1;
+		pause->tx_pause = 1;
+	}
+}
+
+static int
+ixgb_set_pauseparam(struct net_device *netdev,
+			 struct ethtool_pauseparam *pause)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct ixgb_hw *hw = &adapter->hw;
+
+	if (pause->autoneg == AUTONEG_ENABLE)
+		return -EINVAL;
+
+	if (pause->rx_pause && pause->tx_pause)
+		hw->fc.type = ixgb_fc_full;
+	else if (pause->rx_pause && !pause->tx_pause)
+		hw->fc.type = ixgb_fc_rx_pause;
+	else if (!pause->rx_pause && pause->tx_pause)
+		hw->fc.type = ixgb_fc_tx_pause;
+	else if (!pause->rx_pause && !pause->tx_pause)
+		hw->fc.type = ixgb_fc_none;
+
+	if (netif_running(adapter->netdev)) {
+		ixgb_down(adapter, true);
+		ixgb_up(adapter);
+		ixgb_set_speed_duplex(netdev);
+	} else
+		ixgb_reset(adapter);
+
+	return 0;
+}
+
+static u32
+ixgb_get_msglevel(struct net_device *netdev)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	return adapter->msg_enable;
+}
+
+static void
+ixgb_set_msglevel(struct net_device *netdev, u32 data)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	adapter->msg_enable = data;
+}
+#define IXGB_GET_STAT(_A_, _R_) _A_->stats._R_
+
+static int
+ixgb_get_regs_len(struct net_device *netdev)
+{
+#define IXGB_REG_DUMP_LEN  136*sizeof(u32)
+	return IXGB_REG_DUMP_LEN;
+}
+
+static void
+ixgb_get_regs(struct net_device *netdev,
+		   struct ethtool_regs *regs, void *p)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct ixgb_hw *hw = &adapter->hw;
+	u32 *reg = p;
+	u32 *reg_start = reg;
+	u8 i;
+
+	/* the 1 (one) below indicates an attempt at versioning, if the
+	 * interface in ethtool or the driver changes, this 1 should be
+	 * incremented */
+	regs->version = (1<<24) | hw->revision_id << 16 | hw->device_id;
+
+	/* General Registers */
+	*reg++ = IXGB_READ_REG(hw, CTRL0);	/*   0 */
+	*reg++ = IXGB_READ_REG(hw, CTRL1);	/*   1 */
+	*reg++ = IXGB_READ_REG(hw, STATUS);	/*   2 */
+	*reg++ = IXGB_READ_REG(hw, EECD);	/*   3 */
+	*reg++ = IXGB_READ_REG(hw, MFS);	/*   4 */
+
+	/* Interrupt */
+	*reg++ = IXGB_READ_REG(hw, ICR);	/*   5 */
+	*reg++ = IXGB_READ_REG(hw, ICS);	/*   6 */
+	*reg++ = IXGB_READ_REG(hw, IMS);	/*   7 */
+	*reg++ = IXGB_READ_REG(hw, IMC);	/*   8 */
+
+	/* Receive */
+	*reg++ = IXGB_READ_REG(hw, RCTL);	/*   9 */
+	*reg++ = IXGB_READ_REG(hw, FCRTL);	/*  10 */
+	*reg++ = IXGB_READ_REG(hw, FCRTH);	/*  11 */
+	*reg++ = IXGB_READ_REG(hw, RDBAL);	/*  12 */
+	*reg++ = IXGB_READ_REG(hw, RDBAH);	/*  13 */
+	*reg++ = IXGB_READ_REG(hw, RDLEN);	/*  14 */
+	*reg++ = IXGB_READ_REG(hw, RDH);	/*  15 */
+	*reg++ = IXGB_READ_REG(hw, RDT);	/*  16 */
+	*reg++ = IXGB_READ_REG(hw, RDTR);	/*  17 */
+	*reg++ = IXGB_READ_REG(hw, RXDCTL);	/*  18 */
+	*reg++ = IXGB_READ_REG(hw, RAIDC);	/*  19 */
+	*reg++ = IXGB_READ_REG(hw, RXCSUM);	/*  20 */
+
+	/* there are 16 RAR entries in hardware, we only use 3 */
+	for (i = 0; i < IXGB_ALL_RAR_ENTRIES; i++) {
+		*reg++ = IXGB_READ_REG_ARRAY(hw, RAL, (i << 1)); /*21,...,51 */
+		*reg++ = IXGB_READ_REG_ARRAY(hw, RAH, (i << 1)); /*22,...,52 */
+	}
+
+	/* Transmit */
+	*reg++ = IXGB_READ_REG(hw, TCTL);	/*  53 */
+	*reg++ = IXGB_READ_REG(hw, TDBAL);	/*  54 */
+	*reg++ = IXGB_READ_REG(hw, TDBAH);	/*  55 */
+	*reg++ = IXGB_READ_REG(hw, TDLEN);	/*  56 */
+	*reg++ = IXGB_READ_REG(hw, TDH);	/*  57 */
+	*reg++ = IXGB_READ_REG(hw, TDT);	/*  58 */
+	*reg++ = IXGB_READ_REG(hw, TIDV);	/*  59 */
+	*reg++ = IXGB_READ_REG(hw, TXDCTL);	/*  60 */
+	*reg++ = IXGB_READ_REG(hw, TSPMT);	/*  61 */
+	*reg++ = IXGB_READ_REG(hw, PAP);	/*  62 */
+
+	/* Physical */
+	*reg++ = IXGB_READ_REG(hw, PCSC1);	/*  63 */
+	*reg++ = IXGB_READ_REG(hw, PCSC2);	/*  64 */
+	*reg++ = IXGB_READ_REG(hw, PCSS1);	/*  65 */
+	*reg++ = IXGB_READ_REG(hw, PCSS2);	/*  66 */
+	*reg++ = IXGB_READ_REG(hw, XPCSS);	/*  67 */
+	*reg++ = IXGB_READ_REG(hw, UCCR);	/*  68 */
+	*reg++ = IXGB_READ_REG(hw, XPCSTC);	/*  69 */
+	*reg++ = IXGB_READ_REG(hw, MACA);	/*  70 */
+	*reg++ = IXGB_READ_REG(hw, APAE);	/*  71 */
+	*reg++ = IXGB_READ_REG(hw, ARD);	/*  72 */
+	*reg++ = IXGB_READ_REG(hw, AIS);	/*  73 */
+	*reg++ = IXGB_READ_REG(hw, MSCA);	/*  74 */
+	*reg++ = IXGB_READ_REG(hw, MSRWD);	/*  75 */
+
+	/* Statistics */
+	*reg++ = IXGB_GET_STAT(adapter, tprl);	/*  76 */
+	*reg++ = IXGB_GET_STAT(adapter, tprh);	/*  77 */
+	*reg++ = IXGB_GET_STAT(adapter, gprcl);	/*  78 */
+	*reg++ = IXGB_GET_STAT(adapter, gprch);	/*  79 */
+	*reg++ = IXGB_GET_STAT(adapter, bprcl);	/*  80 */
+	*reg++ = IXGB_GET_STAT(adapter, bprch);	/*  81 */
+	*reg++ = IXGB_GET_STAT(adapter, mprcl);	/*  82 */
+	*reg++ = IXGB_GET_STAT(adapter, mprch);	/*  83 */
+	*reg++ = IXGB_GET_STAT(adapter, uprcl);	/*  84 */
+	*reg++ = IXGB_GET_STAT(adapter, uprch);	/*  85 */
+	*reg++ = IXGB_GET_STAT(adapter, vprcl);	/*  86 */
+	*reg++ = IXGB_GET_STAT(adapter, vprch);	/*  87 */
+	*reg++ = IXGB_GET_STAT(adapter, jprcl);	/*  88 */
+	*reg++ = IXGB_GET_STAT(adapter, jprch);	/*  89 */
+	*reg++ = IXGB_GET_STAT(adapter, gorcl);	/*  90 */
+	*reg++ = IXGB_GET_STAT(adapter, gorch);	/*  91 */
+	*reg++ = IXGB_GET_STAT(adapter, torl);	/*  92 */
+	*reg++ = IXGB_GET_STAT(adapter, torh);	/*  93 */
+	*reg++ = IXGB_GET_STAT(adapter, rnbc);	/*  94 */
+	*reg++ = IXGB_GET_STAT(adapter, ruc);	/*  95 */
+	*reg++ = IXGB_GET_STAT(adapter, roc);	/*  96 */
+	*reg++ = IXGB_GET_STAT(adapter, rlec);	/*  97 */
+	*reg++ = IXGB_GET_STAT(adapter, crcerrs);	/*  98 */
+	*reg++ = IXGB_GET_STAT(adapter, icbc);	/*  99 */
+	*reg++ = IXGB_GET_STAT(adapter, ecbc);	/* 100 */
+	*reg++ = IXGB_GET_STAT(adapter, mpc);	/* 101 */
+	*reg++ = IXGB_GET_STAT(adapter, tptl);	/* 102 */
+	*reg++ = IXGB_GET_STAT(adapter, tpth);	/* 103 */
+	*reg++ = IXGB_GET_STAT(adapter, gptcl);	/* 104 */
+	*reg++ = IXGB_GET_STAT(adapter, gptch);	/* 105 */
+	*reg++ = IXGB_GET_STAT(adapter, bptcl);	/* 106 */
+	*reg++ = IXGB_GET_STAT(adapter, bptch);	/* 107 */
+	*reg++ = IXGB_GET_STAT(adapter, mptcl);	/* 108 */
+	*reg++ = IXGB_GET_STAT(adapter, mptch);	/* 109 */
+	*reg++ = IXGB_GET_STAT(adapter, uptcl);	/* 110 */
+	*reg++ = IXGB_GET_STAT(adapter, uptch);	/* 111 */
+	*reg++ = IXGB_GET_STAT(adapter, vptcl);	/* 112 */
+	*reg++ = IXGB_GET_STAT(adapter, vptch);	/* 113 */
+	*reg++ = IXGB_GET_STAT(adapter, jptcl);	/* 114 */
+	*reg++ = IXGB_GET_STAT(adapter, jptch);	/* 115 */
+	*reg++ = IXGB_GET_STAT(adapter, gotcl);	/* 116 */
+	*reg++ = IXGB_GET_STAT(adapter, gotch);	/* 117 */
+	*reg++ = IXGB_GET_STAT(adapter, totl);	/* 118 */
+	*reg++ = IXGB_GET_STAT(adapter, toth);	/* 119 */
+	*reg++ = IXGB_GET_STAT(adapter, dc);	/* 120 */
+	*reg++ = IXGB_GET_STAT(adapter, plt64c);	/* 121 */
+	*reg++ = IXGB_GET_STAT(adapter, tsctc);	/* 122 */
+	*reg++ = IXGB_GET_STAT(adapter, tsctfc);	/* 123 */
+	*reg++ = IXGB_GET_STAT(adapter, ibic);	/* 124 */
+	*reg++ = IXGB_GET_STAT(adapter, rfc);	/* 125 */
+	*reg++ = IXGB_GET_STAT(adapter, lfc);	/* 126 */
+	*reg++ = IXGB_GET_STAT(adapter, pfrc);	/* 127 */
+	*reg++ = IXGB_GET_STAT(adapter, pftc);	/* 128 */
+	*reg++ = IXGB_GET_STAT(adapter, mcfrc);	/* 129 */
+	*reg++ = IXGB_GET_STAT(adapter, mcftc);	/* 130 */
+	*reg++ = IXGB_GET_STAT(adapter, xonrxc);	/* 131 */
+	*reg++ = IXGB_GET_STAT(adapter, xontxc);	/* 132 */
+	*reg++ = IXGB_GET_STAT(adapter, xoffrxc);	/* 133 */
+	*reg++ = IXGB_GET_STAT(adapter, xofftxc);	/* 134 */
+	*reg++ = IXGB_GET_STAT(adapter, rjc);	/* 135 */
+
+	regs->len = (reg - reg_start) * sizeof(u32);
+}
+
+static int
+ixgb_get_eeprom_len(struct net_device *netdev)
+{
+	/* return size in bytes */
+	return IXGB_EEPROM_SIZE << 1;
+}
+
+static int
+ixgb_get_eeprom(struct net_device *netdev,
+		  struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct ixgb_hw *hw = &adapter->hw;
+	__le16 *eeprom_buff;
+	int i, max_len, first_word, last_word;
+	int ret_val = 0;
+
+	if (eeprom->len == 0) {
+		ret_val = -EINVAL;
+		goto geeprom_error;
+	}
+
+	eeprom->magic = hw->vendor_id | (hw->device_id << 16);
+
+	max_len = ixgb_get_eeprom_len(netdev);
+
+	if (eeprom->offset > eeprom->offset + eeprom->len) {
+		ret_val = -EINVAL;
+		goto geeprom_error;
+	}
+
+	if ((eeprom->offset + eeprom->len) > max_len)
+		eeprom->len = (max_len - eeprom->offset);
+
+	first_word = eeprom->offset >> 1;
+	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+
+	eeprom_buff = kmalloc_array(last_word - first_word + 1,
+				    sizeof(__le16),
+				    GFP_KERNEL);
+	if (!eeprom_buff)
+		return -ENOMEM;
+
+	/* note the eeprom was good because the driver loaded */
+	for (i = 0; i <= (last_word - first_word); i++)
+		eeprom_buff[i] = ixgb_get_eeprom_word(hw, (first_word + i));
+
+	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
+	kfree(eeprom_buff);
+
+geeprom_error:
+	return ret_val;
+}
+
+static int
+ixgb_set_eeprom(struct net_device *netdev,
+		  struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct ixgb_hw *hw = &adapter->hw;
+	u16 *eeprom_buff;
+	void *ptr;
+	int max_len, first_word, last_word;
+	u16 i;
+
+	if (eeprom->len == 0)
+		return -EINVAL;
+
+	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
+		return -EFAULT;
+
+	max_len = ixgb_get_eeprom_len(netdev);
+
+	if (eeprom->offset > eeprom->offset + eeprom->len)
+		return -EINVAL;
+
+	if ((eeprom->offset + eeprom->len) > max_len)
+		eeprom->len = (max_len - eeprom->offset);
+
+	first_word = eeprom->offset >> 1;
+	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
+	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
+	if (!eeprom_buff)
+		return -ENOMEM;
+
+	ptr = (void *)eeprom_buff;
+
+	if (eeprom->offset & 1) {
+		/* need read/modify/write of first changed EEPROM word */
+		/* only the second byte of the word is being modified */
+		eeprom_buff[0] = ixgb_read_eeprom(hw, first_word);
+		ptr++;
+	}
+	if ((eeprom->offset + eeprom->len) & 1) {
+		/* need read/modify/write of last changed EEPROM word */
+		/* only the first byte of the word is being modified */
+		eeprom_buff[last_word - first_word]
+			= ixgb_read_eeprom(hw, last_word);
+	}
+
+	memcpy(ptr, bytes, eeprom->len);
+	for (i = 0; i <= (last_word - first_word); i++)
+		ixgb_write_eeprom(hw, first_word + i, eeprom_buff[i]);
+
+	/* Update the checksum over the first part of the EEPROM if needed */
+	if (first_word <= EEPROM_CHECKSUM_REG)
+		ixgb_update_eeprom_checksum(hw);
+
+	kfree(eeprom_buff);
+	return 0;
+}
+
+static void
+ixgb_get_drvinfo(struct net_device *netdev,
+		   struct ethtool_drvinfo *drvinfo)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+
+	strscpy(drvinfo->driver,  ixgb_driver_name,
+		sizeof(drvinfo->driver));
+	strscpy(drvinfo->bus_info, pci_name(adapter->pdev),
+		sizeof(drvinfo->bus_info));
+}
+
+static void
+ixgb_get_ringparam(struct net_device *netdev,
+		   struct ethtool_ringparam *ring,
+		   struct kernel_ethtool_ringparam *kernel_ring,
+		   struct netlink_ext_ack *extack)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct ixgb_desc_ring *txdr = &adapter->tx_ring;
+	struct ixgb_desc_ring *rxdr = &adapter->rx_ring;
+
+	ring->rx_max_pending = MAX_RXD;
+	ring->tx_max_pending = MAX_TXD;
+	ring->rx_pending = rxdr->count;
+	ring->tx_pending = txdr->count;
+}
+
+static int
+ixgb_set_ringparam(struct net_device *netdev,
+		   struct ethtool_ringparam *ring,
+		   struct kernel_ethtool_ringparam *kernel_ring,
+		   struct netlink_ext_ack *extack)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct ixgb_desc_ring *txdr = &adapter->tx_ring;
+	struct ixgb_desc_ring *rxdr = &adapter->rx_ring;
+	struct ixgb_desc_ring tx_old, tx_new, rx_old, rx_new;
+	int err;
+
+	tx_old = adapter->tx_ring;
+	rx_old = adapter->rx_ring;
+
+	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
+		return -EINVAL;
+
+	if (netif_running(adapter->netdev))
+		ixgb_down(adapter, true);
+
+	rxdr->count = max(ring->rx_pending,(u32)MIN_RXD);
+	rxdr->count = min(rxdr->count,(u32)MAX_RXD);
+	rxdr->count = ALIGN(rxdr->count, IXGB_REQ_RX_DESCRIPTOR_MULTIPLE);
+
+	txdr->count = max(ring->tx_pending,(u32)MIN_TXD);
+	txdr->count = min(txdr->count,(u32)MAX_TXD);
+	txdr->count = ALIGN(txdr->count, IXGB_REQ_TX_DESCRIPTOR_MULTIPLE);
+
+	if (netif_running(adapter->netdev)) {
+		/* Try to get new resources before deleting old */
+		if ((err = ixgb_setup_rx_resources(adapter)))
+			goto err_setup_rx;
+		if ((err = ixgb_setup_tx_resources(adapter)))
+			goto err_setup_tx;
+
+		/* save the new, restore the old in order to free it,
+		 * then restore the new back again */
+
+		rx_new = adapter->rx_ring;
+		tx_new = adapter->tx_ring;
+		adapter->rx_ring = rx_old;
+		adapter->tx_ring = tx_old;
+		ixgb_free_rx_resources(adapter);
+		ixgb_free_tx_resources(adapter);
+		adapter->rx_ring = rx_new;
+		adapter->tx_ring = tx_new;
+		if ((err = ixgb_up(adapter)))
+			return err;
+		ixgb_set_speed_duplex(netdev);
+	}
+
+	return 0;
+err_setup_tx:
+	ixgb_free_rx_resources(adapter);
+err_setup_rx:
+	adapter->rx_ring = rx_old;
+	adapter->tx_ring = tx_old;
+	ixgb_up(adapter);
+	return err;
+}
+
+static int
+ixgb_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+
+	switch (state) {
+	case ETHTOOL_ID_ACTIVE:
+		return 2;
+
+	case ETHTOOL_ID_ON:
+		ixgb_led_on(&adapter->hw);
+		break;
+
+	case ETHTOOL_ID_OFF:
+	case ETHTOOL_ID_INACTIVE:
+		ixgb_led_off(&adapter->hw);
+	}
+
+	return 0;
+}
+
+static int
+ixgb_get_sset_count(struct net_device *netdev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return IXGB_STATS_LEN;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void
+ixgb_get_ethtool_stats(struct net_device *netdev,
+		struct ethtool_stats *stats, u64 *data)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	int i;
+	char *p = NULL;
+
+	ixgb_update_stats(adapter);
+	for (i = 0; i < IXGB_STATS_LEN; i++) {
+		switch (ixgb_gstrings_stats[i].type) {
+		case NETDEV_STATS:
+			p = (char *) netdev +
+					ixgb_gstrings_stats[i].stat_offset;
+			break;
+		case IXGB_STATS:
+			p = (char *) adapter +
+					ixgb_gstrings_stats[i].stat_offset;
+			break;
+		}
+
+		data[i] = (ixgb_gstrings_stats[i].sizeof_stat ==
+			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+	}
+}
+
+static void
+ixgb_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
+{
+	int i;
+
+	switch(stringset) {
+	case ETH_SS_STATS:
+		for (i = 0; i < IXGB_STATS_LEN; i++) {
+			memcpy(data + i * ETH_GSTRING_LEN,
+			ixgb_gstrings_stats[i].stat_string,
+			ETH_GSTRING_LEN);
+		}
+		break;
+	}
+}
+
+static const struct ethtool_ops ixgb_ethtool_ops = {
+	.get_drvinfo = ixgb_get_drvinfo,
+	.get_regs_len = ixgb_get_regs_len,
+	.get_regs = ixgb_get_regs,
+	.get_link = ethtool_op_get_link,
+	.get_eeprom_len = ixgb_get_eeprom_len,
+	.get_eeprom = ixgb_get_eeprom,
+	.set_eeprom = ixgb_set_eeprom,
+	.get_ringparam = ixgb_get_ringparam,
+	.set_ringparam = ixgb_set_ringparam,
+	.get_pauseparam	= ixgb_get_pauseparam,
+	.set_pauseparam	= ixgb_set_pauseparam,
+	.get_msglevel = ixgb_get_msglevel,
+	.set_msglevel = ixgb_set_msglevel,
+	.get_strings = ixgb_get_strings,
+	.set_phys_id = ixgb_set_phys_id,
+	.get_sset_count = ixgb_get_sset_count,
+	.get_ethtool_stats = ixgb_get_ethtool_stats,
+	.get_link_ksettings = ixgb_get_link_ksettings,
+	.set_link_ksettings = ixgb_set_link_ksettings,
+};
+
+void ixgb_set_ethtool_ops(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &ixgb_ethtool_ops;
+}
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_hw.c b/drivers/net/ethernet/intel/ixgb/ixgb_hw.c
new file mode 100644
index 000000000..98bd3267b
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_hw.c
@@ -0,0 +1,1229 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2008 Intel Corporation. */
+
+/* ixgb_hw.c
+ * Shared functions for accessing and configuring the adapter
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/pci_ids.h>
+#include "ixgb_hw.h"
+#include "ixgb_ids.h"
+
+#include <linux/etherdevice.h>
+
+/*  Local function prototypes */
+
+static u32 ixgb_hash_mc_addr(struct ixgb_hw *hw, u8 * mc_addr);
+
+static void ixgb_mta_set(struct ixgb_hw *hw, u32 hash_value);
+
+static void ixgb_get_bus_info(struct ixgb_hw *hw);
+
+static bool ixgb_link_reset(struct ixgb_hw *hw);
+
+static void ixgb_optics_reset(struct ixgb_hw *hw);
+
+static void ixgb_optics_reset_bcm(struct ixgb_hw *hw);
+
+static ixgb_phy_type ixgb_identify_phy(struct ixgb_hw *hw);
+
+static void ixgb_clear_hw_cntrs(struct ixgb_hw *hw);
+
+static void ixgb_clear_vfta(struct ixgb_hw *hw);
+
+static void ixgb_init_rx_addrs(struct ixgb_hw *hw);
+
+static u16 ixgb_read_phy_reg(struct ixgb_hw *hw,
+				  u32 reg_address,
+				  u32 phy_address,
+				  u32 device_type);
+
+static bool ixgb_setup_fc(struct ixgb_hw *hw);
+
+static bool mac_addr_valid(u8 *mac_addr);
+
+static u32 ixgb_mac_reset(struct ixgb_hw *hw)
+{
+	u32 ctrl_reg;
+
+	ctrl_reg =  IXGB_CTRL0_RST |
+				IXGB_CTRL0_SDP3_DIR |   /* All pins are Output=1 */
+				IXGB_CTRL0_SDP2_DIR |
+				IXGB_CTRL0_SDP1_DIR |
+				IXGB_CTRL0_SDP0_DIR |
+				IXGB_CTRL0_SDP3	 |   /* Initial value 1101   */
+				IXGB_CTRL0_SDP2	 |
+				IXGB_CTRL0_SDP0;
+
+#ifdef HP_ZX1
+	/* Workaround for 82597EX reset errata */
+	IXGB_WRITE_REG_IO(hw, CTRL0, ctrl_reg);
+#else
+	IXGB_WRITE_REG(hw, CTRL0, ctrl_reg);
+#endif
+
+	/* Delay a few ms just to allow the reset to complete */
+	msleep(IXGB_DELAY_AFTER_RESET);
+	ctrl_reg = IXGB_READ_REG(hw, CTRL0);
+#ifdef DBG
+	/* Make sure the self-clearing global reset bit did self clear */
+	ASSERT(!(ctrl_reg & IXGB_CTRL0_RST));
+#endif
+
+	if (hw->subsystem_vendor_id == PCI_VENDOR_ID_SUN) {
+		ctrl_reg =  /* Enable interrupt from XFP and SerDes */
+			   IXGB_CTRL1_GPI0_EN |
+			   IXGB_CTRL1_SDP6_DIR |
+			   IXGB_CTRL1_SDP7_DIR |
+			   IXGB_CTRL1_SDP6 |
+			   IXGB_CTRL1_SDP7;
+		IXGB_WRITE_REG(hw, CTRL1, ctrl_reg);
+		ixgb_optics_reset_bcm(hw);
+	}
+
+	if (hw->phy_type == ixgb_phy_type_txn17401)
+		ixgb_optics_reset(hw);
+
+	return ctrl_reg;
+}
+
+/******************************************************************************
+ * Reset the transmit and receive units; mask and clear all interrupts.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+bool
+ixgb_adapter_stop(struct ixgb_hw *hw)
+{
+	u32 ctrl_reg;
+
+	ENTER();
+
+	/* If we are stopped or resetting exit gracefully and wait to be
+	 * started again before accessing the hardware.
+	 */
+	if (hw->adapter_stopped) {
+		pr_debug("Exiting because the adapter is already stopped!!!\n");
+		return false;
+	}
+
+	/* Set the Adapter Stopped flag so other driver functions stop
+	 * touching the Hardware.
+	 */
+	hw->adapter_stopped = true;
+
+	/* Clear interrupt mask to stop board from generating interrupts */
+	pr_debug("Masking off all interrupts\n");
+	IXGB_WRITE_REG(hw, IMC, 0xFFFFFFFF);
+
+	/* Disable the Transmit and Receive units.  Then delay to allow
+	 * any pending transactions to complete before we hit the MAC with
+	 * the global reset.
+	 */
+	IXGB_WRITE_REG(hw, RCTL, IXGB_READ_REG(hw, RCTL) & ~IXGB_RCTL_RXEN);
+	IXGB_WRITE_REG(hw, TCTL, IXGB_READ_REG(hw, TCTL) & ~IXGB_TCTL_TXEN);
+	IXGB_WRITE_FLUSH(hw);
+	msleep(IXGB_DELAY_BEFORE_RESET);
+
+	/* Issue a global reset to the MAC.  This will reset the chip's
+	 * transmit, receive, DMA, and link units.  It will not effect
+	 * the current PCI configuration.  The global reset bit is self-
+	 * clearing, and should clear within a microsecond.
+	 */
+	pr_debug("Issuing a global reset to MAC\n");
+
+	ctrl_reg = ixgb_mac_reset(hw);
+
+	/* Clear interrupt mask to stop board from generating interrupts */
+	pr_debug("Masking off all interrupts\n");
+	IXGB_WRITE_REG(hw, IMC, 0xffffffff);
+
+	/* Clear any pending interrupt events. */
+	IXGB_READ_REG(hw, ICR);
+
+	return ctrl_reg & IXGB_CTRL0_RST;
+}
+
+
+/******************************************************************************
+ * Identifies the vendor of the optics module on the adapter.  The SR adapters
+ * support two different types of XPAK optics, so it is necessary to determine
+ * which optics are present before applying any optics-specific workarounds.
+ *
+ * hw - Struct containing variables accessed by shared code.
+ *
+ * Returns: the vendor of the XPAK optics module.
+ *****************************************************************************/
+static ixgb_xpak_vendor
+ixgb_identify_xpak_vendor(struct ixgb_hw *hw)
+{
+	u32 i;
+	u16 vendor_name[5];
+	ixgb_xpak_vendor xpak_vendor;
+
+	ENTER();
+
+	/* Read the first few bytes of the vendor string from the XPAK NVR
+	 * registers.  These are standard XENPAK/XPAK registers, so all XPAK
+	 * devices should implement them. */
+	for (i = 0; i < 5; i++) {
+		vendor_name[i] = ixgb_read_phy_reg(hw,
+						   MDIO_PMA_PMD_XPAK_VENDOR_NAME
+						   + i, IXGB_PHY_ADDRESS,
+						   MDIO_MMD_PMAPMD);
+	}
+
+	/* Determine the actual vendor */
+	if (vendor_name[0] == 'I' &&
+	    vendor_name[1] == 'N' &&
+	    vendor_name[2] == 'T' &&
+	    vendor_name[3] == 'E' && vendor_name[4] == 'L') {
+		xpak_vendor = ixgb_xpak_vendor_intel;
+	} else {
+		xpak_vendor = ixgb_xpak_vendor_infineon;
+	}
+
+	return xpak_vendor;
+}
+
+/******************************************************************************
+ * Determine the physical layer module on the adapter.
+ *
+ * hw - Struct containing variables accessed by shared code.  The device_id
+ *      field must be (correctly) populated before calling this routine.
+ *
+ * Returns: the phy type of the adapter.
+ *****************************************************************************/
+static ixgb_phy_type
+ixgb_identify_phy(struct ixgb_hw *hw)
+{
+	ixgb_phy_type phy_type;
+	ixgb_xpak_vendor xpak_vendor;
+
+	ENTER();
+
+	/* Infer the transceiver/phy type from the device id */
+	switch (hw->device_id) {
+	case IXGB_DEVICE_ID_82597EX:
+		pr_debug("Identified TXN17401 optics\n");
+		phy_type = ixgb_phy_type_txn17401;
+		break;
+
+	case IXGB_DEVICE_ID_82597EX_SR:
+		/* The SR adapters carry two different types of XPAK optics
+		 * modules; read the vendor identifier to determine the exact
+		 * type of optics. */
+		xpak_vendor = ixgb_identify_xpak_vendor(hw);
+		if (xpak_vendor == ixgb_xpak_vendor_intel) {
+			pr_debug("Identified TXN17201 optics\n");
+			phy_type = ixgb_phy_type_txn17201;
+		} else {
+			pr_debug("Identified G6005 optics\n");
+			phy_type = ixgb_phy_type_g6005;
+		}
+		break;
+	case IXGB_DEVICE_ID_82597EX_LR:
+		pr_debug("Identified G6104 optics\n");
+		phy_type = ixgb_phy_type_g6104;
+		break;
+	case IXGB_DEVICE_ID_82597EX_CX4:
+		pr_debug("Identified CX4\n");
+		xpak_vendor = ixgb_identify_xpak_vendor(hw);
+		if (xpak_vendor == ixgb_xpak_vendor_intel) {
+			pr_debug("Identified TXN17201 optics\n");
+			phy_type = ixgb_phy_type_txn17201;
+		} else {
+			pr_debug("Identified G6005 optics\n");
+			phy_type = ixgb_phy_type_g6005;
+		}
+		break;
+	default:
+		pr_debug("Unknown physical layer module\n");
+		phy_type = ixgb_phy_type_unknown;
+		break;
+	}
+
+	/* update phy type for sun specific board */
+	if (hw->subsystem_vendor_id == PCI_VENDOR_ID_SUN)
+		phy_type = ixgb_phy_type_bcm;
+
+	return phy_type;
+}
+
+/******************************************************************************
+ * Performs basic configuration of the adapter.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Resets the controller.
+ * Reads and validates the EEPROM.
+ * Initializes the receive address registers.
+ * Initializes the multicast table.
+ * Clears all on-chip counters.
+ * Calls routine to setup flow control settings.
+ * Leaves the transmit and receive units disabled and uninitialized.
+ *
+ * Returns:
+ *      true if successful,
+ *      false if unrecoverable problems were encountered.
+ *****************************************************************************/
+bool
+ixgb_init_hw(struct ixgb_hw *hw)
+{
+	u32 i;
+	bool status;
+
+	ENTER();
+
+	/* Issue a global reset to the MAC.  This will reset the chip's
+	 * transmit, receive, DMA, and link units.  It will not effect
+	 * the current PCI configuration.  The global reset bit is self-
+	 * clearing, and should clear within a microsecond.
+	 */
+	pr_debug("Issuing a global reset to MAC\n");
+
+	ixgb_mac_reset(hw);
+
+	pr_debug("Issuing an EE reset to MAC\n");
+#ifdef HP_ZX1
+	/* Workaround for 82597EX reset errata */
+	IXGB_WRITE_REG_IO(hw, CTRL1, IXGB_CTRL1_EE_RST);
+#else
+	IXGB_WRITE_REG(hw, CTRL1, IXGB_CTRL1_EE_RST);
+#endif
+
+	/* Delay a few ms just to allow the reset to complete */
+	msleep(IXGB_DELAY_AFTER_EE_RESET);
+
+	if (!ixgb_get_eeprom_data(hw))
+		return false;
+
+	/* Use the device id to determine the type of phy/transceiver. */
+	hw->device_id = ixgb_get_ee_device_id(hw);
+	hw->phy_type = ixgb_identify_phy(hw);
+
+	/* Setup the receive addresses.
+	 * Receive Address Registers (RARs 0 - 15).
+	 */
+	ixgb_init_rx_addrs(hw);
+
+	/*
+	 * Check that a valid MAC address has been set.
+	 * If it is not valid, we fail hardware init.
+	 */
+	if (!mac_addr_valid(hw->curr_mac_addr)) {
+		pr_debug("MAC address invalid after ixgb_init_rx_addrs\n");
+		return(false);
+	}
+
+	/* tell the routines in this file they can access hardware again */
+	hw->adapter_stopped = false;
+
+	/* Fill in the bus_info structure */
+	ixgb_get_bus_info(hw);
+
+	/* Zero out the Multicast HASH table */
+	pr_debug("Zeroing the MTA\n");
+	for (i = 0; i < IXGB_MC_TBL_SIZE; i++)
+		IXGB_WRITE_REG_ARRAY(hw, MTA, i, 0);
+
+	/* Zero out the VLAN Filter Table Array */
+	ixgb_clear_vfta(hw);
+
+	/* Zero all of the hardware counters */
+	ixgb_clear_hw_cntrs(hw);
+
+	/* Call a subroutine to setup flow control. */
+	status = ixgb_setup_fc(hw);
+
+	/* 82597EX errata: Call check-for-link in case lane deskew is locked */
+	ixgb_check_for_link(hw);
+
+	return status;
+}
+
+/******************************************************************************
+ * Initializes receive address filters.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Places the MAC address in receive address register 0 and clears the rest
+ * of the receive address registers. Clears the multicast table. Assumes
+ * the receiver is in reset when the routine is called.
+ *****************************************************************************/
+static void
+ixgb_init_rx_addrs(struct ixgb_hw *hw)
+{
+	u32 i;
+
+	ENTER();
+
+	/*
+	 * If the current mac address is valid, assume it is a software override
+	 * to the permanent address.
+	 * Otherwise, use the permanent address from the eeprom.
+	 */
+	if (!mac_addr_valid(hw->curr_mac_addr)) {
+
+		/* Get the MAC address from the eeprom for later reference */
+		ixgb_get_ee_mac_addr(hw, hw->curr_mac_addr);
+
+		pr_debug("Keeping Permanent MAC Addr = %pM\n",
+			 hw->curr_mac_addr);
+	} else {
+
+		/* Setup the receive address. */
+		pr_debug("Overriding MAC Address in RAR[0]\n");
+		pr_debug("New MAC Addr = %pM\n", hw->curr_mac_addr);
+
+		ixgb_rar_set(hw, hw->curr_mac_addr, 0);
+	}
+
+	/* Zero out the other 15 receive addresses. */
+	pr_debug("Clearing RAR[1-15]\n");
+	for (i = 1; i < IXGB_RAR_ENTRIES; i++) {
+		/* Write high reg first to disable the AV bit first */
+		IXGB_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0);
+		IXGB_WRITE_REG_ARRAY(hw, RA, (i << 1), 0);
+	}
+}
+
+/******************************************************************************
+ * Updates the MAC's list of multicast addresses.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * mc_addr_list - the list of new multicast addresses
+ * mc_addr_count - number of addresses
+ * pad - number of bytes between addresses in the list
+ *
+ * The given list replaces any existing list. Clears the last 15 receive
+ * address registers and the multicast table. Uses receive address registers
+ * for the first 15 multicast addresses, and hashes the rest into the
+ * multicast table.
+ *****************************************************************************/
+void
+ixgb_mc_addr_list_update(struct ixgb_hw *hw,
+			  u8 *mc_addr_list,
+			  u32 mc_addr_count,
+			  u32 pad)
+{
+	u32 hash_value;
+	u32 i;
+	u32 rar_used_count = 1;		/* RAR[0] is used for our MAC address */
+	u8 *mca;
+
+	ENTER();
+
+	/* Set the new number of MC addresses that we are being requested to use. */
+	hw->num_mc_addrs = mc_addr_count;
+
+	/* Clear RAR[1-15] */
+	pr_debug("Clearing RAR[1-15]\n");
+	for (i = rar_used_count; i < IXGB_RAR_ENTRIES; i++) {
+		IXGB_WRITE_REG_ARRAY(hw, RA, (i << 1), 0);
+		IXGB_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0);
+	}
+
+	/* Clear the MTA */
+	pr_debug("Clearing MTA\n");
+	for (i = 0; i < IXGB_MC_TBL_SIZE; i++)
+		IXGB_WRITE_REG_ARRAY(hw, MTA, i, 0);
+
+	/* Add the new addresses */
+	mca = mc_addr_list;
+	for (i = 0; i < mc_addr_count; i++) {
+		pr_debug("Adding the multicast addresses:\n");
+		pr_debug("MC Addr #%d = %pM\n", i, mca);
+
+		/* Place this multicast address in the RAR if there is room, *
+		 * else put it in the MTA
+		 */
+		if (rar_used_count < IXGB_RAR_ENTRIES) {
+			ixgb_rar_set(hw, mca, rar_used_count);
+			pr_debug("Added a multicast address to RAR[%d]\n", i);
+			rar_used_count++;
+		} else {
+			hash_value = ixgb_hash_mc_addr(hw, mca);
+
+			pr_debug("Hash value = 0x%03X\n", hash_value);
+
+			ixgb_mta_set(hw, hash_value);
+		}
+
+		mca += ETH_ALEN + pad;
+	}
+
+	pr_debug("MC Update Complete\n");
+}
+
+/******************************************************************************
+ * Hashes an address to determine its location in the multicast table
+ *
+ * hw - Struct containing variables accessed by shared code
+ * mc_addr - the multicast address to hash
+ *
+ * Returns:
+ *      The hash value
+ *****************************************************************************/
+static u32
+ixgb_hash_mc_addr(struct ixgb_hw *hw,
+		   u8 *mc_addr)
+{
+	u32 hash_value = 0;
+
+	ENTER();
+
+	/* The portion of the address that is used for the hash table is
+	 * determined by the mc_filter_type setting.
+	 */
+	switch (hw->mc_filter_type) {
+		/* [0] [1] [2] [3] [4] [5]
+		 * 01  AA  00  12  34  56
+		 * LSB                 MSB - According to H/W docs */
+	case 0:
+		/* [47:36] i.e. 0x563 for above example address */
+		hash_value =
+		    ((mc_addr[4] >> 4) | (((u16) mc_addr[5]) << 4));
+		break;
+	case 1:		/* [46:35] i.e. 0xAC6 for above example address */
+		hash_value =
+		    ((mc_addr[4] >> 3) | (((u16) mc_addr[5]) << 5));
+		break;
+	case 2:		/* [45:34] i.e. 0x5D8 for above example address */
+		hash_value =
+		    ((mc_addr[4] >> 2) | (((u16) mc_addr[5]) << 6));
+		break;
+	case 3:		/* [43:32] i.e. 0x634 for above example address */
+		hash_value = ((mc_addr[4]) | (((u16) mc_addr[5]) << 8));
+		break;
+	default:
+		/* Invalid mc_filter_type, what should we do? */
+		pr_debug("MC filter type param set incorrectly\n");
+		ASSERT(0);
+		break;
+	}
+
+	hash_value &= 0xFFF;
+	return hash_value;
+}
+
+/******************************************************************************
+ * Sets the bit in the multicast table corresponding to the hash value.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * hash_value - Multicast address hash value
+ *****************************************************************************/
+static void
+ixgb_mta_set(struct ixgb_hw *hw,
+		  u32 hash_value)
+{
+	u32 hash_bit, hash_reg;
+	u32 mta_reg;
+
+	/* The MTA is a register array of 128 32-bit registers.
+	 * It is treated like an array of 4096 bits.  We want to set
+	 * bit BitArray[hash_value]. So we figure out what register
+	 * the bit is in, read it, OR in the new bit, then write
+	 * back the new value.  The register is determined by the
+	 * upper 7 bits of the hash value and the bit within that
+	 * register are determined by the lower 5 bits of the value.
+	 */
+	hash_reg = (hash_value >> 5) & 0x7F;
+	hash_bit = hash_value & 0x1F;
+
+	mta_reg = IXGB_READ_REG_ARRAY(hw, MTA, hash_reg);
+
+	mta_reg |= (1 << hash_bit);
+
+	IXGB_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta_reg);
+}
+
+/******************************************************************************
+ * Puts an ethernet address into a receive address register.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * addr - Address to put into receive address register
+ * index - Receive address register to write
+ *****************************************************************************/
+void
+ixgb_rar_set(struct ixgb_hw *hw,
+		  const u8 *addr,
+		  u32 index)
+{
+	u32 rar_low, rar_high;
+
+	ENTER();
+
+	/* HW expects these in little endian so we reverse the byte order
+	 * from network order (big endian) to little endian
+	 */
+	rar_low = ((u32) addr[0] |
+		   ((u32)addr[1] << 8) |
+		   ((u32)addr[2] << 16) |
+		   ((u32)addr[3] << 24));
+
+	rar_high = ((u32) addr[4] |
+			((u32)addr[5] << 8) |
+			IXGB_RAH_AV);
+
+	IXGB_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low);
+	IXGB_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high);
+}
+
+/******************************************************************************
+ * Writes a value to the specified offset in the VLAN filter table.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * offset - Offset in VLAN filter table to write
+ * value - Value to write into VLAN filter table
+ *****************************************************************************/
+void
+ixgb_write_vfta(struct ixgb_hw *hw,
+		 u32 offset,
+		 u32 value)
+{
+	IXGB_WRITE_REG_ARRAY(hw, VFTA, offset, value);
+}
+
+/******************************************************************************
+ * Clears the VLAN filter table
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static void
+ixgb_clear_vfta(struct ixgb_hw *hw)
+{
+	u32 offset;
+
+	for (offset = 0; offset < IXGB_VLAN_FILTER_TBL_SIZE; offset++)
+		IXGB_WRITE_REG_ARRAY(hw, VFTA, offset, 0);
+}
+
+/******************************************************************************
+ * Configures the flow control settings based on SW configuration.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+
+static bool
+ixgb_setup_fc(struct ixgb_hw *hw)
+{
+	u32 ctrl_reg;
+	u32 pap_reg = 0;   /* by default, assume no pause time */
+	bool status = true;
+
+	ENTER();
+
+	/* Get the current control reg 0 settings */
+	ctrl_reg = IXGB_READ_REG(hw, CTRL0);
+
+	/* Clear the Receive Pause Enable and Transmit Pause Enable bits */
+	ctrl_reg &= ~(IXGB_CTRL0_RPE | IXGB_CTRL0_TPE);
+
+	/* The possible values of the "flow_control" parameter are:
+	 *      0:  Flow control is completely disabled
+	 *      1:  Rx flow control is enabled (we can receive pause frames
+	 *          but not send pause frames).
+	 *      2:  Tx flow control is enabled (we can send pause frames
+	 *          but we do not support receiving pause frames).
+	 *      3:  Both Rx and TX flow control (symmetric) are enabled.
+	 *  other:  Invalid.
+	 */
+	switch (hw->fc.type) {
+	case ixgb_fc_none:	/* 0 */
+		/* Set CMDC bit to disable Rx Flow control */
+		ctrl_reg |= (IXGB_CTRL0_CMDC);
+		break;
+	case ixgb_fc_rx_pause:	/* 1 */
+		/* RX Flow control is enabled, and TX Flow control is
+		 * disabled.
+		 */
+		ctrl_reg |= (IXGB_CTRL0_RPE);
+		break;
+	case ixgb_fc_tx_pause:	/* 2 */
+		/* TX Flow control is enabled, and RX Flow control is
+		 * disabled, by a software over-ride.
+		 */
+		ctrl_reg |= (IXGB_CTRL0_TPE);
+		pap_reg = hw->fc.pause_time;
+		break;
+	case ixgb_fc_full:	/* 3 */
+		/* Flow control (both RX and TX) is enabled by a software
+		 * over-ride.
+		 */
+		ctrl_reg |= (IXGB_CTRL0_RPE | IXGB_CTRL0_TPE);
+		pap_reg = hw->fc.pause_time;
+		break;
+	default:
+		/* We should never get here.  The value should be 0-3. */
+		pr_debug("Flow control param set incorrectly\n");
+		ASSERT(0);
+		break;
+	}
+
+	/* Write the new settings */
+	IXGB_WRITE_REG(hw, CTRL0, ctrl_reg);
+
+	if (pap_reg != 0)
+		IXGB_WRITE_REG(hw, PAP, pap_reg);
+
+	/* Set the flow control receive threshold registers.  Normally,
+	 * these registers will be set to a default threshold that may be
+	 * adjusted later by the driver's runtime code.  However, if the
+	 * ability to transmit pause frames in not enabled, then these
+	 * registers will be set to 0.
+	 */
+	if (!(hw->fc.type & ixgb_fc_tx_pause)) {
+		IXGB_WRITE_REG(hw, FCRTL, 0);
+		IXGB_WRITE_REG(hw, FCRTH, 0);
+	} else {
+	   /* We need to set up the Receive Threshold high and low water
+	    * marks as well as (optionally) enabling the transmission of XON
+	    * frames. */
+		if (hw->fc.send_xon) {
+			IXGB_WRITE_REG(hw, FCRTL,
+				(hw->fc.low_water | IXGB_FCRTL_XONE));
+		} else {
+			IXGB_WRITE_REG(hw, FCRTL, hw->fc.low_water);
+		}
+		IXGB_WRITE_REG(hw, FCRTH, hw->fc.high_water);
+	}
+	return status;
+}
+
+/******************************************************************************
+ * Reads a word from a device over the Management Data Interface (MDI) bus.
+ * This interface is used to manage Physical layer devices.
+ *
+ * hw          - Struct containing variables accessed by hw code
+ * reg_address - Offset of device register being read.
+ * phy_address - Address of device on MDI.
+ *
+ * Returns:  Data word (16 bits) from MDI device.
+ *
+ * The 82597EX has support for several MDI access methods.  This routine
+ * uses the new protocol MDI Single Command and Address Operation.
+ * This requires that first an address cycle command is sent, followed by a
+ * read command.
+ *****************************************************************************/
+static u16
+ixgb_read_phy_reg(struct ixgb_hw *hw,
+		u32 reg_address,
+		u32 phy_address,
+		u32 device_type)
+{
+	u32 i;
+	u32 data;
+	u32 command = 0;
+
+	ASSERT(reg_address <= IXGB_MAX_PHY_REG_ADDRESS);
+	ASSERT(phy_address <= IXGB_MAX_PHY_ADDRESS);
+	ASSERT(device_type <= IXGB_MAX_PHY_DEV_TYPE);
+
+	/* Setup and write the address cycle command */
+	command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT) |
+		   (device_type << IXGB_MSCA_DEV_TYPE_SHIFT) |
+		   (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT) |
+		   (IXGB_MSCA_ADDR_CYCLE | IXGB_MSCA_MDI_COMMAND));
+
+	IXGB_WRITE_REG(hw, MSCA, command);
+
+    /**************************************************************
+    ** Check every 10 usec to see if the address cycle completed
+    ** The COMMAND bit will clear when the operation is complete.
+    ** This may take as long as 64 usecs (we'll wait 100 usecs max)
+    ** from the CPU Write to the Ready bit assertion.
+    **************************************************************/
+
+	for (i = 0; i < 10; i++)
+	{
+		udelay(10);
+
+		command = IXGB_READ_REG(hw, MSCA);
+
+		if ((command & IXGB_MSCA_MDI_COMMAND) == 0)
+			break;
+	}
+
+	ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0);
+
+	/* Address cycle complete, setup and write the read command */
+	command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT) |
+		   (device_type << IXGB_MSCA_DEV_TYPE_SHIFT) |
+		   (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT) |
+		   (IXGB_MSCA_READ | IXGB_MSCA_MDI_COMMAND));
+
+	IXGB_WRITE_REG(hw, MSCA, command);
+
+    /**************************************************************
+    ** Check every 10 usec to see if the read command completed
+    ** The COMMAND bit will clear when the operation is complete.
+    ** The read may take as long as 64 usecs (we'll wait 100 usecs max)
+    ** from the CPU Write to the Ready bit assertion.
+    **************************************************************/
+
+	for (i = 0; i < 10; i++)
+	{
+		udelay(10);
+
+		command = IXGB_READ_REG(hw, MSCA);
+
+		if ((command & IXGB_MSCA_MDI_COMMAND) == 0)
+			break;
+	}
+
+	ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0);
+
+	/* Operation is complete, get the data from the MDIO Read/Write Data
+	 * register and return.
+	 */
+	data = IXGB_READ_REG(hw, MSRWD);
+	data >>= IXGB_MSRWD_READ_DATA_SHIFT;
+	return((u16) data);
+}
+
+/******************************************************************************
+ * Writes a word to a device over the Management Data Interface (MDI) bus.
+ * This interface is used to manage Physical layer devices.
+ *
+ * hw          - Struct containing variables accessed by hw code
+ * reg_address - Offset of device register being read.
+ * phy_address - Address of device on MDI.
+ * device_type - Also known as the Device ID or DID.
+ * data        - 16-bit value to be written
+ *
+ * Returns:  void.
+ *
+ * The 82597EX has support for several MDI access methods.  This routine
+ * uses the new protocol MDI Single Command and Address Operation.
+ * This requires that first an address cycle command is sent, followed by a
+ * write command.
+ *****************************************************************************/
+static void
+ixgb_write_phy_reg(struct ixgb_hw *hw,
+			u32 reg_address,
+			u32 phy_address,
+			u32 device_type,
+			u16 data)
+{
+	u32 i;
+	u32 command = 0;
+
+	ASSERT(reg_address <= IXGB_MAX_PHY_REG_ADDRESS);
+	ASSERT(phy_address <= IXGB_MAX_PHY_ADDRESS);
+	ASSERT(device_type <= IXGB_MAX_PHY_DEV_TYPE);
+
+	/* Put the data in the MDIO Read/Write Data register */
+	IXGB_WRITE_REG(hw, MSRWD, (u32)data);
+
+	/* Setup and write the address cycle command */
+	command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT)  |
+			   (device_type << IXGB_MSCA_DEV_TYPE_SHIFT) |
+			   (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT) |
+			   (IXGB_MSCA_ADDR_CYCLE | IXGB_MSCA_MDI_COMMAND));
+
+	IXGB_WRITE_REG(hw, MSCA, command);
+
+	/**************************************************************
+	** Check every 10 usec to see if the address cycle completed
+	** The COMMAND bit will clear when the operation is complete.
+	** This may take as long as 64 usecs (we'll wait 100 usecs max)
+	** from the CPU Write to the Ready bit assertion.
+	**************************************************************/
+
+	for (i = 0; i < 10; i++)
+	{
+		udelay(10);
+
+		command = IXGB_READ_REG(hw, MSCA);
+
+		if ((command & IXGB_MSCA_MDI_COMMAND) == 0)
+			break;
+	}
+
+	ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0);
+
+	/* Address cycle complete, setup and write the write command */
+	command = ((reg_address << IXGB_MSCA_NP_ADDR_SHIFT)  |
+			   (device_type << IXGB_MSCA_DEV_TYPE_SHIFT) |
+			   (phy_address << IXGB_MSCA_PHY_ADDR_SHIFT) |
+			   (IXGB_MSCA_WRITE | IXGB_MSCA_MDI_COMMAND));
+
+	IXGB_WRITE_REG(hw, MSCA, command);
+
+	/**************************************************************
+	** Check every 10 usec to see if the read command completed
+	** The COMMAND bit will clear when the operation is complete.
+	** The write may take as long as 64 usecs (we'll wait 100 usecs max)
+	** from the CPU Write to the Ready bit assertion.
+	**************************************************************/
+
+	for (i = 0; i < 10; i++)
+	{
+		udelay(10);
+
+		command = IXGB_READ_REG(hw, MSCA);
+
+		if ((command & IXGB_MSCA_MDI_COMMAND) == 0)
+			break;
+	}
+
+	ASSERT((command & IXGB_MSCA_MDI_COMMAND) == 0);
+
+	/* Operation is complete, return. */
+}
+
+/******************************************************************************
+ * Checks to see if the link status of the hardware has changed.
+ *
+ * hw - Struct containing variables accessed by hw code
+ *
+ * Called by any function that needs to check the link status of the adapter.
+ *****************************************************************************/
+void
+ixgb_check_for_link(struct ixgb_hw *hw)
+{
+	u32 status_reg;
+	u32 xpcss_reg;
+
+	ENTER();
+
+	xpcss_reg = IXGB_READ_REG(hw, XPCSS);
+	status_reg = IXGB_READ_REG(hw, STATUS);
+
+	if ((xpcss_reg & IXGB_XPCSS_ALIGN_STATUS) &&
+	    (status_reg & IXGB_STATUS_LU)) {
+		hw->link_up = true;
+	} else if (!(xpcss_reg & IXGB_XPCSS_ALIGN_STATUS) &&
+		   (status_reg & IXGB_STATUS_LU)) {
+		pr_debug("XPCSS Not Aligned while Status:LU is set\n");
+		hw->link_up = ixgb_link_reset(hw);
+	} else {
+		/*
+		 * 82597EX errata.  Since the lane deskew problem may prevent
+		 * link, reset the link before reporting link down.
+		 */
+		hw->link_up = ixgb_link_reset(hw);
+	}
+	/*  Anything else for 10 Gig?? */
+}
+
+/******************************************************************************
+ * Check for a bad link condition that may have occurred.
+ * The indication is that the RFC / LFC registers may be incrementing
+ * continually.  A full adapter reset is required to recover.
+ *
+ * hw - Struct containing variables accessed by hw code
+ *
+ * Called by any function that needs to check the link status of the adapter.
+ *****************************************************************************/
+bool ixgb_check_for_bad_link(struct ixgb_hw *hw)
+{
+	u32 newLFC, newRFC;
+	bool bad_link_returncode = false;
+
+	if (hw->phy_type == ixgb_phy_type_txn17401) {
+		newLFC = IXGB_READ_REG(hw, LFC);
+		newRFC = IXGB_READ_REG(hw, RFC);
+		if ((hw->lastLFC + 250 < newLFC)
+		    || (hw->lastRFC + 250 < newRFC)) {
+			pr_debug("BAD LINK! too many LFC/RFC since last check\n");
+			bad_link_returncode = true;
+		}
+		hw->lastLFC = newLFC;
+		hw->lastRFC = newRFC;
+	}
+
+	return bad_link_returncode;
+}
+
+/******************************************************************************
+ * Clears all hardware statistics counters.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static void
+ixgb_clear_hw_cntrs(struct ixgb_hw *hw)
+{
+	ENTER();
+
+	/* if we are stopped or resetting exit gracefully */
+	if (hw->adapter_stopped) {
+		pr_debug("Exiting because the adapter is stopped!!!\n");
+		return;
+	}
+
+	IXGB_READ_REG(hw, TPRL);
+	IXGB_READ_REG(hw, TPRH);
+	IXGB_READ_REG(hw, GPRCL);
+	IXGB_READ_REG(hw, GPRCH);
+	IXGB_READ_REG(hw, BPRCL);
+	IXGB_READ_REG(hw, BPRCH);
+	IXGB_READ_REG(hw, MPRCL);
+	IXGB_READ_REG(hw, MPRCH);
+	IXGB_READ_REG(hw, UPRCL);
+	IXGB_READ_REG(hw, UPRCH);
+	IXGB_READ_REG(hw, VPRCL);
+	IXGB_READ_REG(hw, VPRCH);
+	IXGB_READ_REG(hw, JPRCL);
+	IXGB_READ_REG(hw, JPRCH);
+	IXGB_READ_REG(hw, GORCL);
+	IXGB_READ_REG(hw, GORCH);
+	IXGB_READ_REG(hw, TORL);
+	IXGB_READ_REG(hw, TORH);
+	IXGB_READ_REG(hw, RNBC);
+	IXGB_READ_REG(hw, RUC);
+	IXGB_READ_REG(hw, ROC);
+	IXGB_READ_REG(hw, RLEC);
+	IXGB_READ_REG(hw, CRCERRS);
+	IXGB_READ_REG(hw, ICBC);
+	IXGB_READ_REG(hw, ECBC);
+	IXGB_READ_REG(hw, MPC);
+	IXGB_READ_REG(hw, TPTL);
+	IXGB_READ_REG(hw, TPTH);
+	IXGB_READ_REG(hw, GPTCL);
+	IXGB_READ_REG(hw, GPTCH);
+	IXGB_READ_REG(hw, BPTCL);
+	IXGB_READ_REG(hw, BPTCH);
+	IXGB_READ_REG(hw, MPTCL);
+	IXGB_READ_REG(hw, MPTCH);
+	IXGB_READ_REG(hw, UPTCL);
+	IXGB_READ_REG(hw, UPTCH);
+	IXGB_READ_REG(hw, VPTCL);
+	IXGB_READ_REG(hw, VPTCH);
+	IXGB_READ_REG(hw, JPTCL);
+	IXGB_READ_REG(hw, JPTCH);
+	IXGB_READ_REG(hw, GOTCL);
+	IXGB_READ_REG(hw, GOTCH);
+	IXGB_READ_REG(hw, TOTL);
+	IXGB_READ_REG(hw, TOTH);
+	IXGB_READ_REG(hw, DC);
+	IXGB_READ_REG(hw, PLT64C);
+	IXGB_READ_REG(hw, TSCTC);
+	IXGB_READ_REG(hw, TSCTFC);
+	IXGB_READ_REG(hw, IBIC);
+	IXGB_READ_REG(hw, RFC);
+	IXGB_READ_REG(hw, LFC);
+	IXGB_READ_REG(hw, PFRC);
+	IXGB_READ_REG(hw, PFTC);
+	IXGB_READ_REG(hw, MCFRC);
+	IXGB_READ_REG(hw, MCFTC);
+	IXGB_READ_REG(hw, XONRXC);
+	IXGB_READ_REG(hw, XONTXC);
+	IXGB_READ_REG(hw, XOFFRXC);
+	IXGB_READ_REG(hw, XOFFTXC);
+	IXGB_READ_REG(hw, RJC);
+}
+
+/******************************************************************************
+ * Turns on the software controllable LED
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+void
+ixgb_led_on(struct ixgb_hw *hw)
+{
+	u32 ctrl0_reg = IXGB_READ_REG(hw, CTRL0);
+
+	/* To turn on the LED, clear software-definable pin 0 (SDP0). */
+	ctrl0_reg &= ~IXGB_CTRL0_SDP0;
+	IXGB_WRITE_REG(hw, CTRL0, ctrl0_reg);
+}
+
+/******************************************************************************
+ * Turns off the software controllable LED
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+void
+ixgb_led_off(struct ixgb_hw *hw)
+{
+	u32 ctrl0_reg = IXGB_READ_REG(hw, CTRL0);
+
+	/* To turn off the LED, set software-definable pin 0 (SDP0). */
+	ctrl0_reg |= IXGB_CTRL0_SDP0;
+	IXGB_WRITE_REG(hw, CTRL0, ctrl0_reg);
+}
+
+/******************************************************************************
+ * Gets the current PCI bus type, speed, and width of the hardware
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static void
+ixgb_get_bus_info(struct ixgb_hw *hw)
+{
+	u32 status_reg;
+
+	status_reg = IXGB_READ_REG(hw, STATUS);
+
+	hw->bus.type = (status_reg & IXGB_STATUS_PCIX_MODE) ?
+		ixgb_bus_type_pcix : ixgb_bus_type_pci;
+
+	if (hw->bus.type == ixgb_bus_type_pci) {
+		hw->bus.speed = (status_reg & IXGB_STATUS_PCI_SPD) ?
+			ixgb_bus_speed_66 : ixgb_bus_speed_33;
+	} else {
+		switch (status_reg & IXGB_STATUS_PCIX_SPD_MASK) {
+		case IXGB_STATUS_PCIX_SPD_66:
+			hw->bus.speed = ixgb_bus_speed_66;
+			break;
+		case IXGB_STATUS_PCIX_SPD_100:
+			hw->bus.speed = ixgb_bus_speed_100;
+			break;
+		case IXGB_STATUS_PCIX_SPD_133:
+			hw->bus.speed = ixgb_bus_speed_133;
+			break;
+		default:
+			hw->bus.speed = ixgb_bus_speed_reserved;
+			break;
+		}
+	}
+
+	hw->bus.width = (status_reg & IXGB_STATUS_BUS64) ?
+		ixgb_bus_width_64 : ixgb_bus_width_32;
+}
+
+/******************************************************************************
+ * Tests a MAC address to ensure it is a valid Individual Address
+ *
+ * mac_addr - pointer to MAC address.
+ *
+ *****************************************************************************/
+static bool
+mac_addr_valid(u8 *mac_addr)
+{
+	bool is_valid = true;
+	ENTER();
+
+	/* Make sure it is not a multicast address */
+	if (is_multicast_ether_addr(mac_addr)) {
+		pr_debug("MAC address is multicast\n");
+		is_valid = false;
+	}
+	/* Not a broadcast address */
+	else if (is_broadcast_ether_addr(mac_addr)) {
+		pr_debug("MAC address is broadcast\n");
+		is_valid = false;
+	}
+	/* Reject the zero address */
+	else if (is_zero_ether_addr(mac_addr)) {
+		pr_debug("MAC address is all zeros\n");
+		is_valid = false;
+	}
+	return is_valid;
+}
+
+/******************************************************************************
+ * Resets the 10GbE link.  Waits the settle time and returns the state of
+ * the link.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static bool
+ixgb_link_reset(struct ixgb_hw *hw)
+{
+	bool link_status = false;
+	u8 wait_retries = MAX_RESET_ITERATIONS;
+	u8 lrst_retries = MAX_RESET_ITERATIONS;
+
+	do {
+		/* Reset the link */
+		IXGB_WRITE_REG(hw, CTRL0,
+			       IXGB_READ_REG(hw, CTRL0) | IXGB_CTRL0_LRST);
+
+		/* Wait for link-up and lane re-alignment */
+		do {
+			udelay(IXGB_DELAY_USECS_AFTER_LINK_RESET);
+			link_status =
+			    ((IXGB_READ_REG(hw, STATUS) & IXGB_STATUS_LU)
+			     && (IXGB_READ_REG(hw, XPCSS) &
+				 IXGB_XPCSS_ALIGN_STATUS)) ? true : false;
+		} while (!link_status && --wait_retries);
+
+	} while (!link_status && --lrst_retries);
+
+	return link_status;
+}
+
+/******************************************************************************
+ * Resets the 10GbE optics module.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static void
+ixgb_optics_reset(struct ixgb_hw *hw)
+{
+	if (hw->phy_type == ixgb_phy_type_txn17401) {
+		ixgb_write_phy_reg(hw,
+				   MDIO_CTRL1,
+				   IXGB_PHY_ADDRESS,
+				   MDIO_MMD_PMAPMD,
+				   MDIO_CTRL1_RESET);
+
+		ixgb_read_phy_reg(hw, MDIO_CTRL1, IXGB_PHY_ADDRESS, MDIO_MMD_PMAPMD);
+	}
+}
+
+/******************************************************************************
+ * Resets the 10GbE optics module for Sun variant NIC.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+
+#define   IXGB_BCM8704_USER_PMD_TX_CTRL_REG         0xC803
+#define   IXGB_BCM8704_USER_PMD_TX_CTRL_REG_VAL     0x0164
+#define   IXGB_BCM8704_USER_CTRL_REG                0xC800
+#define   IXGB_BCM8704_USER_CTRL_REG_VAL            0x7FBF
+#define   IXGB_BCM8704_USER_DEV3_ADDR               0x0003
+#define   IXGB_SUN_PHY_ADDRESS                      0x0000
+#define   IXGB_SUN_PHY_RESET_DELAY                     305
+
+static void
+ixgb_optics_reset_bcm(struct ixgb_hw *hw)
+{
+	u32 ctrl = IXGB_READ_REG(hw, CTRL0);
+	ctrl &= ~IXGB_CTRL0_SDP2;
+	ctrl |= IXGB_CTRL0_SDP3;
+	IXGB_WRITE_REG(hw, CTRL0, ctrl);
+	IXGB_WRITE_FLUSH(hw);
+
+	/* SerDes needs extra delay */
+	msleep(IXGB_SUN_PHY_RESET_DELAY);
+
+	/* Broadcom 7408L configuration */
+	/* Reference clock config */
+	ixgb_write_phy_reg(hw,
+			   IXGB_BCM8704_USER_PMD_TX_CTRL_REG,
+			   IXGB_SUN_PHY_ADDRESS,
+			   IXGB_BCM8704_USER_DEV3_ADDR,
+			   IXGB_BCM8704_USER_PMD_TX_CTRL_REG_VAL);
+	/*  we must read the registers twice */
+	ixgb_read_phy_reg(hw,
+			  IXGB_BCM8704_USER_PMD_TX_CTRL_REG,
+			  IXGB_SUN_PHY_ADDRESS,
+			  IXGB_BCM8704_USER_DEV3_ADDR);
+	ixgb_read_phy_reg(hw,
+			  IXGB_BCM8704_USER_PMD_TX_CTRL_REG,
+			  IXGB_SUN_PHY_ADDRESS,
+			  IXGB_BCM8704_USER_DEV3_ADDR);
+
+	ixgb_write_phy_reg(hw,
+			   IXGB_BCM8704_USER_CTRL_REG,
+			   IXGB_SUN_PHY_ADDRESS,
+			   IXGB_BCM8704_USER_DEV3_ADDR,
+			   IXGB_BCM8704_USER_CTRL_REG_VAL);
+	ixgb_read_phy_reg(hw,
+			  IXGB_BCM8704_USER_CTRL_REG,
+			  IXGB_SUN_PHY_ADDRESS,
+			  IXGB_BCM8704_USER_DEV3_ADDR);
+	ixgb_read_phy_reg(hw,
+			  IXGB_BCM8704_USER_CTRL_REG,
+			  IXGB_SUN_PHY_ADDRESS,
+			  IXGB_BCM8704_USER_DEV3_ADDR);
+
+	/* SerDes needs extra delay */
+	msleep(IXGB_SUN_PHY_RESET_DELAY);
+}
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_hw.h b/drivers/net/ethernet/intel/ixgb/ixgb_hw.h
new file mode 100644
index 000000000..70bcff5fb
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_hw.h
@@ -0,0 +1,767 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2008 Intel Corporation. */
+
+#ifndef _IXGB_HW_H_
+#define _IXGB_HW_H_
+
+#include <linux/mdio.h>
+
+#include "ixgb_osdep.h"
+
+/* Enums */
+typedef enum {
+	ixgb_mac_unknown = 0,
+	ixgb_82597,
+	ixgb_num_macs
+} ixgb_mac_type;
+
+/* Types of physical layer modules */
+typedef enum {
+	ixgb_phy_type_unknown = 0,
+	ixgb_phy_type_g6005,	/* 850nm, MM fiber, XPAK transceiver */
+	ixgb_phy_type_g6104,	/* 1310nm, SM fiber, XPAK transceiver */
+	ixgb_phy_type_txn17201,	/* 850nm, MM fiber, XPAK transceiver */
+	ixgb_phy_type_txn17401,	/* 1310nm, SM fiber, XENPAK transceiver */
+	ixgb_phy_type_bcm	/* SUN specific board */
+} ixgb_phy_type;
+
+/* XPAK transceiver vendors, for the SR adapters */
+typedef enum {
+	ixgb_xpak_vendor_intel,
+	ixgb_xpak_vendor_infineon
+} ixgb_xpak_vendor;
+
+/* Media Types */
+typedef enum {
+	ixgb_media_type_unknown = 0,
+	ixgb_media_type_fiber = 1,
+	ixgb_media_type_copper = 2,
+	ixgb_num_media_types
+} ixgb_media_type;
+
+/* Flow Control Settings */
+typedef enum {
+	ixgb_fc_none = 0,
+	ixgb_fc_rx_pause = 1,
+	ixgb_fc_tx_pause = 2,
+	ixgb_fc_full = 3,
+	ixgb_fc_default = 0xFF
+} ixgb_fc_type;
+
+/* PCI bus types */
+typedef enum {
+	ixgb_bus_type_unknown = 0,
+	ixgb_bus_type_pci,
+	ixgb_bus_type_pcix
+} ixgb_bus_type;
+
+/* PCI bus speeds */
+typedef enum {
+	ixgb_bus_speed_unknown = 0,
+	ixgb_bus_speed_33,
+	ixgb_bus_speed_66,
+	ixgb_bus_speed_100,
+	ixgb_bus_speed_133,
+	ixgb_bus_speed_reserved
+} ixgb_bus_speed;
+
+/* PCI bus widths */
+typedef enum {
+	ixgb_bus_width_unknown = 0,
+	ixgb_bus_width_32,
+	ixgb_bus_width_64
+} ixgb_bus_width;
+
+#define IXGB_EEPROM_SIZE    64	/* Size in words */
+
+#define SPEED_10000  10000
+#define FULL_DUPLEX  2
+
+#define MIN_NUMBER_OF_DESCRIPTORS       8
+#define MAX_NUMBER_OF_DESCRIPTORS  0xFFF8	/* 13 bits in RDLEN/TDLEN, 128B aligned     */
+
+#define IXGB_DELAY_BEFORE_RESET        10	/* allow 10ms after idling rx/tx units      */
+#define IXGB_DELAY_AFTER_RESET          1	/* allow 1ms after the reset                */
+#define IXGB_DELAY_AFTER_EE_RESET      10	/* allow 10ms after the EEPROM reset        */
+
+#define IXGB_DELAY_USECS_AFTER_LINK_RESET    13	/* allow 13 microseconds after the reset    */
+					   /* NOTE: this is MICROSECONDS               */
+#define MAX_RESET_ITERATIONS            8	/* number of iterations to get things right */
+
+/* General Registers */
+#define IXGB_CTRL0   0x00000	/* Device Control Register 0 - RW */
+#define IXGB_CTRL1   0x00008	/* Device Control Register 1 - RW */
+#define IXGB_STATUS  0x00010	/* Device Status Register - RO */
+#define IXGB_EECD    0x00018	/* EEPROM/Flash Control/Data Register - RW */
+#define IXGB_MFS     0x00020	/* Maximum Frame Size - RW */
+
+/* Interrupt */
+#define IXGB_ICR     0x00080	/* Interrupt Cause Read - R/clr */
+#define IXGB_ICS     0x00088	/* Interrupt Cause Set - RW */
+#define IXGB_IMS     0x00090	/* Interrupt Mask Set/Read - RW */
+#define IXGB_IMC     0x00098	/* Interrupt Mask Clear - WO */
+
+/* Receive */
+#define IXGB_RCTL    0x00100	/* RX Control - RW */
+#define IXGB_FCRTL   0x00108	/* Flow Control Receive Threshold Low - RW */
+#define IXGB_FCRTH   0x00110	/* Flow Control Receive Threshold High - RW */
+#define IXGB_RDBAL   0x00118	/* RX Descriptor Base Low - RW */
+#define IXGB_RDBAH   0x0011C	/* RX Descriptor Base High - RW */
+#define IXGB_RDLEN   0x00120	/* RX Descriptor Length - RW */
+#define IXGB_RDH     0x00128	/* RX Descriptor Head - RW */
+#define IXGB_RDT     0x00130	/* RX Descriptor Tail - RW */
+#define IXGB_RDTR    0x00138	/* RX Delay Timer Ring - RW */
+#define IXGB_RXDCTL  0x00140	/* Receive Descriptor Control - RW */
+#define IXGB_RAIDC   0x00148	/* Receive Adaptive Interrupt Delay Control - RW */
+#define IXGB_RXCSUM  0x00158	/* Receive Checksum Control - RW */
+#define IXGB_RA      0x00180	/* Receive Address Array Base - RW */
+#define IXGB_RAL     0x00180	/* Receive Address Low [0:15] - RW */
+#define IXGB_RAH     0x00184	/* Receive Address High [0:15] - RW */
+#define IXGB_MTA     0x00200	/* Multicast Table Array [0:127] - RW */
+#define IXGB_VFTA    0x00400	/* VLAN Filter Table Array [0:127] - RW */
+#define IXGB_REQ_RX_DESCRIPTOR_MULTIPLE 8
+
+/* Transmit */
+#define IXGB_TCTL    0x00600	/* TX Control - RW */
+#define IXGB_TDBAL   0x00608	/* TX Descriptor Base Low - RW */
+#define IXGB_TDBAH   0x0060C	/* TX Descriptor Base High - RW */
+#define IXGB_TDLEN   0x00610	/* TX Descriptor Length - RW */
+#define IXGB_TDH     0x00618	/* TX Descriptor Head - RW */
+#define IXGB_TDT     0x00620	/* TX Descriptor Tail - RW */
+#define IXGB_TIDV    0x00628	/* TX Interrupt Delay Value - RW */
+#define IXGB_TXDCTL  0x00630	/* Transmit Descriptor Control - RW */
+#define IXGB_TSPMT   0x00638	/* TCP Segmentation PAD & Min Threshold - RW */
+#define IXGB_PAP     0x00640	/* Pause and Pace - RW */
+#define IXGB_REQ_TX_DESCRIPTOR_MULTIPLE 8
+
+/* Physical */
+#define IXGB_PCSC1   0x00700	/* PCS Control 1 - RW */
+#define IXGB_PCSC2   0x00708	/* PCS Control 2 - RW */
+#define IXGB_PCSS1   0x00710	/* PCS Status 1 - RO */
+#define IXGB_PCSS2   0x00718	/* PCS Status 2 - RO */
+#define IXGB_XPCSS   0x00720	/* 10GBASE-X PCS Status (or XGXS Lane Status) - RO */
+#define IXGB_UCCR    0x00728	/* Unilink Circuit Control Register */
+#define IXGB_XPCSTC  0x00730	/* 10GBASE-X PCS Test Control */
+#define IXGB_MACA    0x00738	/* MDI Autoscan Command and Address - RW */
+#define IXGB_APAE    0x00740	/* Autoscan PHY Address Enable - RW */
+#define IXGB_ARD     0x00748	/* Autoscan Read Data - RO */
+#define IXGB_AIS     0x00750	/* Autoscan Interrupt Status - RO */
+#define IXGB_MSCA    0x00758	/* MDI Single Command and Address - RW */
+#define IXGB_MSRWD   0x00760	/* MDI Single Read and Write Data - RW, RO */
+
+/* Wake-up */
+#define IXGB_WUFC    0x00808	/* Wake Up Filter Control - RW */
+#define IXGB_WUS     0x00810	/* Wake Up Status - RO */
+#define IXGB_FFLT    0x01000	/* Flexible Filter Length Table - RW */
+#define IXGB_FFMT    0x01020	/* Flexible Filter Mask Table - RW */
+#define IXGB_FTVT    0x01420	/* Flexible Filter Value Table - RW */
+
+/* Statistics */
+#define IXGB_TPRL    0x02000	/* Total Packets Received (Low) */
+#define IXGB_TPRH    0x02004	/* Total Packets Received (High) */
+#define IXGB_GPRCL   0x02008	/* Good Packets Received Count (Low) */
+#define IXGB_GPRCH   0x0200C	/* Good Packets Received Count (High) */
+#define IXGB_BPRCL   0x02010	/* Broadcast Packets Received Count (Low) */
+#define IXGB_BPRCH   0x02014	/* Broadcast Packets Received Count (High) */
+#define IXGB_MPRCL   0x02018	/* Multicast Packets Received Count (Low) */
+#define IXGB_MPRCH   0x0201C	/* Multicast Packets Received Count (High) */
+#define IXGB_UPRCL   0x02020	/* Unicast Packets Received Count (Low) */
+#define IXGB_UPRCH   0x02024	/* Unicast Packets Received Count (High) */
+#define IXGB_VPRCL   0x02028	/* VLAN Packets Received Count (Low) */
+#define IXGB_VPRCH   0x0202C	/* VLAN Packets Received Count (High) */
+#define IXGB_JPRCL   0x02030	/* Jumbo Packets Received Count (Low) */
+#define IXGB_JPRCH   0x02034	/* Jumbo Packets Received Count (High) */
+#define IXGB_GORCL   0x02038	/* Good Octets Received Count (Low) */
+#define IXGB_GORCH   0x0203C	/* Good Octets Received Count (High) */
+#define IXGB_TORL    0x02040	/* Total Octets Received (Low) */
+#define IXGB_TORH    0x02044	/* Total Octets Received (High) */
+#define IXGB_RNBC    0x02048	/* Receive No Buffers Count */
+#define IXGB_RUC     0x02050	/* Receive Undersize Count */
+#define IXGB_ROC     0x02058	/* Receive Oversize Count */
+#define IXGB_RLEC    0x02060	/* Receive Length Error Count */
+#define IXGB_CRCERRS 0x02068	/* CRC Error Count */
+#define IXGB_ICBC    0x02070	/* Illegal control byte in mid-packet Count */
+#define IXGB_ECBC    0x02078	/* Error Control byte in mid-packet Count */
+#define IXGB_MPC     0x02080	/* Missed Packets Count */
+#define IXGB_TPTL    0x02100	/* Total Packets Transmitted (Low) */
+#define IXGB_TPTH    0x02104	/* Total Packets Transmitted (High) */
+#define IXGB_GPTCL   0x02108	/* Good Packets Transmitted Count (Low) */
+#define IXGB_GPTCH   0x0210C	/* Good Packets Transmitted Count (High) */
+#define IXGB_BPTCL   0x02110	/* Broadcast Packets Transmitted Count (Low) */
+#define IXGB_BPTCH   0x02114	/* Broadcast Packets Transmitted Count (High) */
+#define IXGB_MPTCL   0x02118	/* Multicast Packets Transmitted Count (Low) */
+#define IXGB_MPTCH   0x0211C	/* Multicast Packets Transmitted Count (High) */
+#define IXGB_UPTCL   0x02120	/* Unicast Packets Transmitted Count (Low) */
+#define IXGB_UPTCH   0x02124	/* Unicast Packets Transmitted Count (High) */
+#define IXGB_VPTCL   0x02128	/* VLAN Packets Transmitted Count (Low) */
+#define IXGB_VPTCH   0x0212C	/* VLAN Packets Transmitted Count (High) */
+#define IXGB_JPTCL   0x02130	/* Jumbo Packets Transmitted Count (Low) */
+#define IXGB_JPTCH   0x02134	/* Jumbo Packets Transmitted Count (High) */
+#define IXGB_GOTCL   0x02138	/* Good Octets Transmitted Count (Low) */
+#define IXGB_GOTCH   0x0213C	/* Good Octets Transmitted Count (High) */
+#define IXGB_TOTL    0x02140	/* Total Octets Transmitted Count (Low) */
+#define IXGB_TOTH    0x02144	/* Total Octets Transmitted Count (High) */
+#define IXGB_DC      0x02148	/* Defer Count */
+#define IXGB_PLT64C  0x02150	/* Packet Transmitted was less than 64 bytes Count */
+#define IXGB_TSCTC   0x02170	/* TCP Segmentation Context Transmitted Count */
+#define IXGB_TSCTFC  0x02178	/* TCP Segmentation Context Tx Fail Count */
+#define IXGB_IBIC    0x02180	/* Illegal byte during Idle stream count */
+#define IXGB_RFC     0x02188	/* Remote Fault Count */
+#define IXGB_LFC     0x02190	/* Local Fault Count */
+#define IXGB_PFRC    0x02198	/* Pause Frame Receive Count */
+#define IXGB_PFTC    0x021A0	/* Pause Frame Transmit Count */
+#define IXGB_MCFRC   0x021A8	/* MAC Control Frames (non-Pause) Received Count */
+#define IXGB_MCFTC   0x021B0	/* MAC Control Frames (non-Pause) Transmitted Count */
+#define IXGB_XONRXC  0x021B8	/* XON Received Count */
+#define IXGB_XONTXC  0x021C0	/* XON Transmitted Count */
+#define IXGB_XOFFRXC 0x021C8	/* XOFF Received Count */
+#define IXGB_XOFFTXC 0x021D0	/* XOFF Transmitted Count */
+#define IXGB_RJC     0x021D8	/* Receive Jabber Count */
+
+/* CTRL0 Bit Masks */
+#define IXGB_CTRL0_LRST     0x00000008
+#define IXGB_CTRL0_JFE      0x00000010
+#define IXGB_CTRL0_XLE      0x00000020
+#define IXGB_CTRL0_MDCS     0x00000040
+#define IXGB_CTRL0_CMDC     0x00000080
+#define IXGB_CTRL0_SDP0     0x00040000
+#define IXGB_CTRL0_SDP1     0x00080000
+#define IXGB_CTRL0_SDP2     0x00100000
+#define IXGB_CTRL0_SDP3     0x00200000
+#define IXGB_CTRL0_SDP0_DIR 0x00400000
+#define IXGB_CTRL0_SDP1_DIR 0x00800000
+#define IXGB_CTRL0_SDP2_DIR 0x01000000
+#define IXGB_CTRL0_SDP3_DIR 0x02000000
+#define IXGB_CTRL0_RST      0x04000000
+#define IXGB_CTRL0_RPE      0x08000000
+#define IXGB_CTRL0_TPE      0x10000000
+#define IXGB_CTRL0_VME      0x40000000
+
+/* CTRL1 Bit Masks */
+#define IXGB_CTRL1_GPI0_EN     0x00000001
+#define IXGB_CTRL1_GPI1_EN     0x00000002
+#define IXGB_CTRL1_GPI2_EN     0x00000004
+#define IXGB_CTRL1_GPI3_EN     0x00000008
+#define IXGB_CTRL1_SDP4        0x00000010
+#define IXGB_CTRL1_SDP5        0x00000020
+#define IXGB_CTRL1_SDP6        0x00000040
+#define IXGB_CTRL1_SDP7        0x00000080
+#define IXGB_CTRL1_SDP4_DIR    0x00000100
+#define IXGB_CTRL1_SDP5_DIR    0x00000200
+#define IXGB_CTRL1_SDP6_DIR    0x00000400
+#define IXGB_CTRL1_SDP7_DIR    0x00000800
+#define IXGB_CTRL1_EE_RST      0x00002000
+#define IXGB_CTRL1_RO_DIS      0x00020000
+#define IXGB_CTRL1_PCIXHM_MASK 0x00C00000
+#define IXGB_CTRL1_PCIXHM_1_2  0x00000000
+#define IXGB_CTRL1_PCIXHM_5_8  0x00400000
+#define IXGB_CTRL1_PCIXHM_3_4  0x00800000
+#define IXGB_CTRL1_PCIXHM_7_8  0x00C00000
+
+/* STATUS Bit Masks */
+#define IXGB_STATUS_LU            0x00000002
+#define IXGB_STATUS_AIP           0x00000004
+#define IXGB_STATUS_TXOFF         0x00000010
+#define IXGB_STATUS_XAUIME        0x00000020
+#define IXGB_STATUS_RES           0x00000040
+#define IXGB_STATUS_RIS           0x00000080
+#define IXGB_STATUS_RIE           0x00000100
+#define IXGB_STATUS_RLF           0x00000200
+#define IXGB_STATUS_RRF           0x00000400
+#define IXGB_STATUS_PCI_SPD       0x00000800
+#define IXGB_STATUS_BUS64         0x00001000
+#define IXGB_STATUS_PCIX_MODE     0x00002000
+#define IXGB_STATUS_PCIX_SPD_MASK 0x0000C000
+#define IXGB_STATUS_PCIX_SPD_66   0x00000000
+#define IXGB_STATUS_PCIX_SPD_100  0x00004000
+#define IXGB_STATUS_PCIX_SPD_133  0x00008000
+#define IXGB_STATUS_REV_ID_MASK   0x000F0000
+#define IXGB_STATUS_REV_ID_SHIFT  16
+
+/* EECD Bit Masks */
+#define IXGB_EECD_SK       0x00000001
+#define IXGB_EECD_CS       0x00000002
+#define IXGB_EECD_DI       0x00000004
+#define IXGB_EECD_DO       0x00000008
+#define IXGB_EECD_FWE_MASK 0x00000030
+#define IXGB_EECD_FWE_DIS  0x00000010
+#define IXGB_EECD_FWE_EN   0x00000020
+
+/* MFS */
+#define IXGB_MFS_SHIFT 16
+
+/* Interrupt Register Bit Masks (used for ICR, ICS, IMS, and IMC) */
+#define IXGB_INT_TXDW     0x00000001
+#define IXGB_INT_TXQE     0x00000002
+#define IXGB_INT_LSC      0x00000004
+#define IXGB_INT_RXSEQ    0x00000008
+#define IXGB_INT_RXDMT0   0x00000010
+#define IXGB_INT_RXO      0x00000040
+#define IXGB_INT_RXT0     0x00000080
+#define IXGB_INT_AUTOSCAN 0x00000200
+#define IXGB_INT_GPI0     0x00000800
+#define IXGB_INT_GPI1     0x00001000
+#define IXGB_INT_GPI2     0x00002000
+#define IXGB_INT_GPI3     0x00004000
+
+/* RCTL Bit Masks */
+#define IXGB_RCTL_RXEN        0x00000002
+#define IXGB_RCTL_SBP         0x00000004
+#define IXGB_RCTL_UPE         0x00000008
+#define IXGB_RCTL_MPE         0x00000010
+#define IXGB_RCTL_RDMTS_MASK  0x00000300
+#define IXGB_RCTL_RDMTS_1_2   0x00000000
+#define IXGB_RCTL_RDMTS_1_4   0x00000100
+#define IXGB_RCTL_RDMTS_1_8   0x00000200
+#define IXGB_RCTL_MO_MASK     0x00003000
+#define IXGB_RCTL_MO_47_36    0x00000000
+#define IXGB_RCTL_MO_46_35    0x00001000
+#define IXGB_RCTL_MO_45_34    0x00002000
+#define IXGB_RCTL_MO_43_32    0x00003000
+#define IXGB_RCTL_MO_SHIFT    12
+#define IXGB_RCTL_BAM         0x00008000
+#define IXGB_RCTL_BSIZE_MASK  0x00030000
+#define IXGB_RCTL_BSIZE_2048  0x00000000
+#define IXGB_RCTL_BSIZE_4096  0x00010000
+#define IXGB_RCTL_BSIZE_8192  0x00020000
+#define IXGB_RCTL_BSIZE_16384 0x00030000
+#define IXGB_RCTL_VFE         0x00040000
+#define IXGB_RCTL_CFIEN       0x00080000
+#define IXGB_RCTL_CFI         0x00100000
+#define IXGB_RCTL_RPDA_MASK   0x00600000
+#define IXGB_RCTL_RPDA_MC_MAC 0x00000000
+#define IXGB_RCTL_MC_ONLY     0x00400000
+#define IXGB_RCTL_CFF         0x00800000
+#define IXGB_RCTL_SECRC       0x04000000
+#define IXGB_RDT_FPDB         0x80000000
+
+#define IXGB_RCTL_IDLE_RX_UNIT 0
+
+/* FCRTL Bit Masks */
+#define IXGB_FCRTL_XONE       0x80000000
+
+/* RXDCTL Bit Masks */
+#define IXGB_RXDCTL_PTHRESH_MASK  0x000001FF
+#define IXGB_RXDCTL_PTHRESH_SHIFT 0
+#define IXGB_RXDCTL_HTHRESH_MASK  0x0003FE00
+#define IXGB_RXDCTL_HTHRESH_SHIFT 9
+#define IXGB_RXDCTL_WTHRESH_MASK  0x07FC0000
+#define IXGB_RXDCTL_WTHRESH_SHIFT 18
+
+/* RAIDC Bit Masks */
+#define IXGB_RAIDC_HIGHTHRS_MASK 0x0000003F
+#define IXGB_RAIDC_DELAY_MASK    0x000FF800
+#define IXGB_RAIDC_DELAY_SHIFT   11
+#define IXGB_RAIDC_POLL_MASK     0x1FF00000
+#define IXGB_RAIDC_POLL_SHIFT    20
+#define IXGB_RAIDC_RXT_GATE      0x40000000
+#define IXGB_RAIDC_EN            0x80000000
+
+#define IXGB_RAIDC_POLL_1000_INTERRUPTS_PER_SECOND      1220
+#define IXGB_RAIDC_POLL_5000_INTERRUPTS_PER_SECOND      244
+#define IXGB_RAIDC_POLL_10000_INTERRUPTS_PER_SECOND     122
+#define IXGB_RAIDC_POLL_20000_INTERRUPTS_PER_SECOND     61
+
+/* RXCSUM Bit Masks */
+#define IXGB_RXCSUM_IPOFL 0x00000100
+#define IXGB_RXCSUM_TUOFL 0x00000200
+
+/* RAH Bit Masks */
+#define IXGB_RAH_ASEL_MASK 0x00030000
+#define IXGB_RAH_ASEL_DEST 0x00000000
+#define IXGB_RAH_ASEL_SRC  0x00010000
+#define IXGB_RAH_AV        0x80000000
+
+/* TCTL Bit Masks */
+#define IXGB_TCTL_TCE  0x00000001
+#define IXGB_TCTL_TXEN 0x00000002
+#define IXGB_TCTL_TPDE 0x00000004
+
+#define IXGB_TCTL_IDLE_TX_UNIT  0
+
+/* TXDCTL Bit Masks */
+#define IXGB_TXDCTL_PTHRESH_MASK  0x0000007F
+#define IXGB_TXDCTL_HTHRESH_MASK  0x00007F00
+#define IXGB_TXDCTL_HTHRESH_SHIFT 8
+#define IXGB_TXDCTL_WTHRESH_MASK  0x007F0000
+#define IXGB_TXDCTL_WTHRESH_SHIFT 16
+
+/* TSPMT Bit Masks */
+#define IXGB_TSPMT_TSMT_MASK   0x0000FFFF
+#define IXGB_TSPMT_TSPBP_MASK  0xFFFF0000
+#define IXGB_TSPMT_TSPBP_SHIFT 16
+
+/* PAP Bit Masks */
+#define IXGB_PAP_TXPC_MASK 0x0000FFFF
+#define IXGB_PAP_TXPV_MASK 0x000F0000
+#define IXGB_PAP_TXPV_10G  0x00000000
+#define IXGB_PAP_TXPV_1G   0x00010000
+#define IXGB_PAP_TXPV_2G   0x00020000
+#define IXGB_PAP_TXPV_3G   0x00030000
+#define IXGB_PAP_TXPV_4G   0x00040000
+#define IXGB_PAP_TXPV_5G   0x00050000
+#define IXGB_PAP_TXPV_6G   0x00060000
+#define IXGB_PAP_TXPV_7G   0x00070000
+#define IXGB_PAP_TXPV_8G   0x00080000
+#define IXGB_PAP_TXPV_9G   0x00090000
+#define IXGB_PAP_TXPV_WAN  0x000F0000
+
+/* PCSC1 Bit Masks */
+#define IXGB_PCSC1_LOOPBACK 0x00004000
+
+/* PCSC2 Bit Masks */
+#define IXGB_PCSC2_PCS_TYPE_MASK  0x00000003
+#define IXGB_PCSC2_PCS_TYPE_10GBX 0x00000001
+
+/* PCSS1 Bit Masks */
+#define IXGB_PCSS1_LOCAL_FAULT    0x00000080
+#define IXGB_PCSS1_RX_LINK_STATUS 0x00000004
+
+/* PCSS2 Bit Masks */
+#define IXGB_PCSS2_DEV_PRES_MASK 0x0000C000
+#define IXGB_PCSS2_DEV_PRES      0x00004000
+#define IXGB_PCSS2_TX_LF         0x00000800
+#define IXGB_PCSS2_RX_LF         0x00000400
+#define IXGB_PCSS2_10GBW         0x00000004
+#define IXGB_PCSS2_10GBX         0x00000002
+#define IXGB_PCSS2_10GBR         0x00000001
+
+/* XPCSS Bit Masks */
+#define IXGB_XPCSS_ALIGN_STATUS 0x00001000
+#define IXGB_XPCSS_PATTERN_TEST 0x00000800
+#define IXGB_XPCSS_LANE_3_SYNC  0x00000008
+#define IXGB_XPCSS_LANE_2_SYNC  0x00000004
+#define IXGB_XPCSS_LANE_1_SYNC  0x00000002
+#define IXGB_XPCSS_LANE_0_SYNC  0x00000001
+
+/* XPCSTC Bit Masks */
+#define IXGB_XPCSTC_BERT_TRIG       0x00200000
+#define IXGB_XPCSTC_BERT_SST        0x00100000
+#define IXGB_XPCSTC_BERT_PSZ_MASK   0x000C0000
+#define IXGB_XPCSTC_BERT_PSZ_SHIFT  17
+#define IXGB_XPCSTC_BERT_PSZ_INF    0x00000003
+#define IXGB_XPCSTC_BERT_PSZ_68     0x00000001
+#define IXGB_XPCSTC_BERT_PSZ_1028   0x00000000
+
+/* MSCA bit Masks */
+/* New Protocol Address */
+#define IXGB_MSCA_NP_ADDR_MASK      0x0000FFFF
+#define IXGB_MSCA_NP_ADDR_SHIFT     0
+/* Either Device Type or Register Address,depending on ST_CODE */
+#define IXGB_MSCA_DEV_TYPE_MASK     0x001F0000
+#define IXGB_MSCA_DEV_TYPE_SHIFT    16
+#define IXGB_MSCA_PHY_ADDR_MASK     0x03E00000
+#define IXGB_MSCA_PHY_ADDR_SHIFT    21
+#define IXGB_MSCA_OP_CODE_MASK      0x0C000000
+/* OP_CODE == 00, Address cycle, New Protocol           */
+/* OP_CODE == 01, Write operation                       */
+/* OP_CODE == 10, Read operation                        */
+/* OP_CODE == 11, Read, auto increment, New Protocol    */
+#define IXGB_MSCA_ADDR_CYCLE        0x00000000
+#define IXGB_MSCA_WRITE             0x04000000
+#define IXGB_MSCA_READ              0x08000000
+#define IXGB_MSCA_READ_AUTOINC      0x0C000000
+#define IXGB_MSCA_OP_CODE_SHIFT     26
+#define IXGB_MSCA_ST_CODE_MASK      0x30000000
+/* ST_CODE == 00, New Protocol  */
+/* ST_CODE == 01, Old Protocol  */
+#define IXGB_MSCA_NEW_PROTOCOL      0x00000000
+#define IXGB_MSCA_OLD_PROTOCOL      0x10000000
+#define IXGB_MSCA_ST_CODE_SHIFT     28
+/* Initiate command, self-clearing when command completes */
+#define IXGB_MSCA_MDI_COMMAND       0x40000000
+/*MDI In Progress Enable. */
+#define IXGB_MSCA_MDI_IN_PROG_EN    0x80000000
+
+/* MSRWD bit masks */
+#define IXGB_MSRWD_WRITE_DATA_MASK  0x0000FFFF
+#define IXGB_MSRWD_WRITE_DATA_SHIFT 0
+#define IXGB_MSRWD_READ_DATA_MASK   0xFFFF0000
+#define IXGB_MSRWD_READ_DATA_SHIFT  16
+
+/* Definitions for the optics devices on the MDIO bus. */
+#define IXGB_PHY_ADDRESS             0x0	/* Single PHY, multiple "Devices" */
+
+#define MDIO_PMA_PMD_XPAK_VENDOR_NAME       0x803A	/* XPAK/XENPAK devices only */
+
+/* Vendor-specific MDIO registers */
+#define G6XXX_PMA_PMD_VS1                   0xC001	/* Vendor-specific register */
+#define G6XXX_XGXS_XAUI_VS2                 0x18	/* Vendor-specific register */
+
+#define G6XXX_PMA_PMD_VS1_PLL_RESET         0x80
+#define G6XXX_PMA_PMD_VS1_REMOVE_PLL_RESET  0x00
+#define G6XXX_XGXS_XAUI_VS2_INPUT_MASK      0x0F	/* XAUI lanes synchronized */
+
+/* Layout of a single receive descriptor.  The controller assumes that this
+ * structure is packed into 16 bytes, which is a safe assumption with most
+ * compilers.  However, some compilers may insert padding between the fields,
+ * in which case the structure must be packed in some compiler-specific
+ * manner. */
+struct ixgb_rx_desc {
+	__le64 buff_addr;
+	__le16 length;
+	__le16 reserved;
+	u8 status;
+	u8 errors;
+	__le16 special;
+};
+
+#define IXGB_RX_DESC_STATUS_DD    0x01
+#define IXGB_RX_DESC_STATUS_EOP   0x02
+#define IXGB_RX_DESC_STATUS_IXSM  0x04
+#define IXGB_RX_DESC_STATUS_VP    0x08
+#define IXGB_RX_DESC_STATUS_TCPCS 0x20
+#define IXGB_RX_DESC_STATUS_IPCS  0x40
+#define IXGB_RX_DESC_STATUS_PIF   0x80
+
+#define IXGB_RX_DESC_ERRORS_CE   0x01
+#define IXGB_RX_DESC_ERRORS_SE   0x02
+#define IXGB_RX_DESC_ERRORS_P    0x08
+#define IXGB_RX_DESC_ERRORS_TCPE 0x20
+#define IXGB_RX_DESC_ERRORS_IPE  0x40
+#define IXGB_RX_DESC_ERRORS_RXE  0x80
+
+#define IXGB_RX_DESC_SPECIAL_VLAN_MASK  0x0FFF	/* VLAN ID is in lower 12 bits */
+#define IXGB_RX_DESC_SPECIAL_PRI_MASK   0xE000	/* Priority is in upper 3 bits */
+#define IXGB_RX_DESC_SPECIAL_PRI_SHIFT  0x000D	/* Priority is in upper 3 of 16 */
+
+/* Layout of a single transmit descriptor.  The controller assumes that this
+ * structure is packed into 16 bytes, which is a safe assumption with most
+ * compilers.  However, some compilers may insert padding between the fields,
+ * in which case the structure must be packed in some compiler-specific
+ * manner. */
+struct ixgb_tx_desc {
+	__le64 buff_addr;
+	__le32 cmd_type_len;
+	u8 status;
+	u8 popts;
+	__le16 vlan;
+};
+
+#define IXGB_TX_DESC_LENGTH_MASK    0x000FFFFF
+#define IXGB_TX_DESC_TYPE_MASK      0x00F00000
+#define IXGB_TX_DESC_TYPE_SHIFT     20
+#define IXGB_TX_DESC_CMD_MASK       0xFF000000
+#define IXGB_TX_DESC_CMD_SHIFT      24
+#define IXGB_TX_DESC_CMD_EOP        0x01000000
+#define IXGB_TX_DESC_CMD_TSE        0x04000000
+#define IXGB_TX_DESC_CMD_RS         0x08000000
+#define IXGB_TX_DESC_CMD_VLE        0x40000000
+#define IXGB_TX_DESC_CMD_IDE        0x80000000
+
+#define IXGB_TX_DESC_TYPE           0x00100000
+
+#define IXGB_TX_DESC_STATUS_DD  0x01
+
+#define IXGB_TX_DESC_POPTS_IXSM 0x01
+#define IXGB_TX_DESC_POPTS_TXSM 0x02
+#define IXGB_TX_DESC_SPECIAL_PRI_SHIFT  IXGB_RX_DESC_SPECIAL_PRI_SHIFT	/* Priority is in upper 3 of 16 */
+
+struct ixgb_context_desc {
+	u8 ipcss;
+	u8 ipcso;
+	__le16 ipcse;
+	u8 tucss;
+	u8 tucso;
+	__le16 tucse;
+	__le32 cmd_type_len;
+	u8 status;
+	u8 hdr_len;
+	__le16 mss;
+};
+
+#define IXGB_CONTEXT_DESC_CMD_TCP 0x01000000
+#define IXGB_CONTEXT_DESC_CMD_IP  0x02000000
+#define IXGB_CONTEXT_DESC_CMD_TSE 0x04000000
+#define IXGB_CONTEXT_DESC_CMD_RS  0x08000000
+#define IXGB_CONTEXT_DESC_CMD_IDE 0x80000000
+
+#define IXGB_CONTEXT_DESC_TYPE 0x00000000
+
+#define IXGB_CONTEXT_DESC_STATUS_DD 0x01
+
+/* Filters */
+#define IXGB_MC_TBL_SIZE          128	/* Multicast Filter Table (4096 bits) */
+#define IXGB_VLAN_FILTER_TBL_SIZE 128	/* VLAN Filter Table (4096 bits) */
+#define IXGB_RAR_ENTRIES		  3	/* Number of entries in Rx Address array */
+
+#define IXGB_MEMORY_REGISTER_BASE_ADDRESS   0
+#define ENET_HEADER_SIZE			14
+#define ENET_FCS_LENGTH			 4
+#define IXGB_MAX_NUM_MULTICAST_ADDRESSES	128
+#define IXGB_MIN_ENET_FRAME_SIZE_WITHOUT_FCS	60
+#define IXGB_MAX_ENET_FRAME_SIZE_WITHOUT_FCS	1514
+#define IXGB_MAX_JUMBO_FRAME_SIZE		0x3F00
+
+/* Phy Addresses */
+#define IXGB_OPTICAL_PHY_ADDR 0x0	/* Optical Module phy address */
+#define IXGB_XAUII_PHY_ADDR   0x1	/* Xauii transceiver phy address */
+#define IXGB_DIAG_PHY_ADDR    0x1F	/* Diagnostic Device phy address */
+
+/* This structure takes a 64k flash and maps it for identification commands */
+struct ixgb_flash_buffer {
+	u8 manufacturer_id;
+	u8 device_id;
+	u8 filler1[0x2AA8];
+	u8 cmd2;
+	u8 filler2[0x2AAA];
+	u8 cmd1;
+	u8 filler3[0xAAAA];
+};
+
+/* Flow control parameters */
+struct ixgb_fc {
+	u32 high_water;	/* Flow Control High-water          */
+	u32 low_water;	/* Flow Control Low-water           */
+	u16 pause_time;	/* Flow Control Pause timer         */
+	bool send_xon;		/* Flow control send XON            */
+	ixgb_fc_type type;	/* Type of flow control             */
+};
+
+/* The historical defaults for the flow control values are given below. */
+#define FC_DEFAULT_HI_THRESH        (0x8000)	/* 32KB */
+#define FC_DEFAULT_LO_THRESH        (0x4000)	/* 16KB */
+#define FC_DEFAULT_TX_TIMER         (0x100)	/* ~130 us */
+
+/* Phy definitions */
+#define IXGB_MAX_PHY_REG_ADDRESS    0xFFFF
+#define IXGB_MAX_PHY_ADDRESS        31
+#define IXGB_MAX_PHY_DEV_TYPE       31
+
+/* Bus parameters */
+struct ixgb_bus {
+	ixgb_bus_speed speed;
+	ixgb_bus_width width;
+	ixgb_bus_type type;
+};
+
+struct ixgb_hw {
+	u8 __iomem *hw_addr;/* Base Address of the hardware     */
+	void *back;		/* Pointer to OS-dependent struct   */
+	struct ixgb_fc fc;	/* Flow control parameters          */
+	struct ixgb_bus bus;	/* Bus parameters                   */
+	u32 phy_id;	/* Phy Identifier                   */
+	u32 phy_addr;	/* XGMII address of Phy             */
+	ixgb_mac_type mac_type;	/* Identifier for MAC controller    */
+	ixgb_phy_type phy_type;	/* Transceiver/phy identifier       */
+	u32 max_frame_size;	/* Maximum frame size supported     */
+	u32 mc_filter_type;	/* Multicast filter hash type       */
+	u32 num_mc_addrs;	/* Number of current Multicast addrs */
+	u8 curr_mac_addr[ETH_ALEN];	/* Individual address currently programmed in MAC */
+	u32 num_tx_desc;	/* Number of Transmit descriptors   */
+	u32 num_rx_desc;	/* Number of Receive descriptors    */
+	u32 rx_buffer_size;	/* Size of Receive buffer           */
+	bool link_up;		/* true if link is valid            */
+	bool adapter_stopped;	/* State of adapter                 */
+	u16 device_id;	/* device id from PCI configuration space */
+	u16 vendor_id;	/* vendor id from PCI configuration space */
+	u8 revision_id;	/* revision id from PCI configuration space */
+	u16 subsystem_vendor_id;	/* subsystem vendor id from PCI configuration space */
+	u16 subsystem_id;	/* subsystem id from PCI configuration space */
+	u32 bar0;		/* Base Address registers           */
+	u32 bar1;
+	u32 bar2;
+	u32 bar3;
+	u16 pci_cmd_word;	/* PCI command register id from PCI configuration space */
+	__le16 eeprom[IXGB_EEPROM_SIZE];	/* EEPROM contents read at init time  */
+	unsigned long io_base;	/* Our I/O mapped location */
+	u32 lastLFC;
+	u32 lastRFC;
+};
+
+/* Statistics reported by the hardware */
+struct ixgb_hw_stats {
+	u64 tprl;
+	u64 tprh;
+	u64 gprcl;
+	u64 gprch;
+	u64 bprcl;
+	u64 bprch;
+	u64 mprcl;
+	u64 mprch;
+	u64 uprcl;
+	u64 uprch;
+	u64 vprcl;
+	u64 vprch;
+	u64 jprcl;
+	u64 jprch;
+	u64 gorcl;
+	u64 gorch;
+	u64 torl;
+	u64 torh;
+	u64 rnbc;
+	u64 ruc;
+	u64 roc;
+	u64 rlec;
+	u64 crcerrs;
+	u64 icbc;
+	u64 ecbc;
+	u64 mpc;
+	u64 tptl;
+	u64 tpth;
+	u64 gptcl;
+	u64 gptch;
+	u64 bptcl;
+	u64 bptch;
+	u64 mptcl;
+	u64 mptch;
+	u64 uptcl;
+	u64 uptch;
+	u64 vptcl;
+	u64 vptch;
+	u64 jptcl;
+	u64 jptch;
+	u64 gotcl;
+	u64 gotch;
+	u64 totl;
+	u64 toth;
+	u64 dc;
+	u64 plt64c;
+	u64 tsctc;
+	u64 tsctfc;
+	u64 ibic;
+	u64 rfc;
+	u64 lfc;
+	u64 pfrc;
+	u64 pftc;
+	u64 mcfrc;
+	u64 mcftc;
+	u64 xonrxc;
+	u64 xontxc;
+	u64 xoffrxc;
+	u64 xofftxc;
+	u64 rjc;
+};
+
+/* Function Prototypes */
+bool ixgb_adapter_stop(struct ixgb_hw *hw);
+bool ixgb_init_hw(struct ixgb_hw *hw);
+bool ixgb_adapter_start(struct ixgb_hw *hw);
+void ixgb_check_for_link(struct ixgb_hw *hw);
+bool ixgb_check_for_bad_link(struct ixgb_hw *hw);
+
+void ixgb_rar_set(struct ixgb_hw *hw, const u8 *addr, u32 index);
+
+/* Filters (multicast, vlan, receive) */
+void ixgb_mc_addr_list_update(struct ixgb_hw *hw, u8 *mc_addr_list,
+			      u32 mc_addr_count, u32 pad);
+
+/* Vfta functions */
+void ixgb_write_vfta(struct ixgb_hw *hw, u32 offset, u32 value);
+
+/* Access functions to eeprom data */
+void ixgb_get_ee_mac_addr(struct ixgb_hw *hw, u8 *mac_addr);
+u32 ixgb_get_ee_pba_number(struct ixgb_hw *hw);
+u16 ixgb_get_ee_device_id(struct ixgb_hw *hw);
+bool ixgb_get_eeprom_data(struct ixgb_hw *hw);
+__le16 ixgb_get_eeprom_word(struct ixgb_hw *hw, u16 index);
+
+/* Everything else */
+void ixgb_led_on(struct ixgb_hw *hw);
+void ixgb_led_off(struct ixgb_hw *hw);
+void ixgb_write_pci_cfg(struct ixgb_hw *hw,
+			 u32 reg,
+			 u16 * value);
+
+
+#endif /* _IXGB_HW_H_ */
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_ids.h b/drivers/net/ethernet/intel/ixgb/ixgb_ids.h
new file mode 100644
index 000000000..9695b8215
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_ids.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2008 Intel Corporation. */
+
+#ifndef _IXGB_IDS_H_
+#define _IXGB_IDS_H_
+
+/**********************************************************************
+** The Device and Vendor IDs for 10 Gigabit MACs
+**********************************************************************/
+
+#define IXGB_DEVICE_ID_82597EX      0x1048
+#define IXGB_DEVICE_ID_82597EX_SR   0x1A48
+#define IXGB_DEVICE_ID_82597EX_LR   0x1B48
+#define IXGB_SUBDEVICE_ID_A11F      0xA11F
+#define IXGB_SUBDEVICE_ID_A01F      0xA01F
+
+#define IXGB_DEVICE_ID_82597EX_CX4   0x109E
+#define IXGB_SUBDEVICE_ID_A00C  0xA00C
+#define IXGB_SUBDEVICE_ID_A01C  0xA01C
+#define IXGB_SUBDEVICE_ID_7036  0x7036
+
+#endif /* #ifndef _IXGB_IDS_H_ */
+/* End of File */
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
new file mode 100644
index 000000000..b4d47e7a7
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -0,0 +1,2285 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2008 Intel Corporation. */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/prefetch.h>
+#include "ixgb.h"
+
+char ixgb_driver_name[] = "ixgb";
+static char ixgb_driver_string[] = "Intel(R) PRO/10GbE Network Driver";
+
+static const char ixgb_copyright[] = "Copyright (c) 1999-2008 Intel Corporation.";
+
+#define IXGB_CB_LENGTH 256
+static unsigned int copybreak __read_mostly = IXGB_CB_LENGTH;
+module_param(copybreak, uint, 0644);
+MODULE_PARM_DESC(copybreak,
+	"Maximum size of packet that is copied to a new buffer on receive");
+
+/* ixgb_pci_tbl - PCI Device ID Table
+ *
+ * Wildcard entries (PCI_ANY_ID) should come last
+ * Last entry must be all 0s
+ *
+ * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
+ *   Class, Class Mask, private data (not used) }
+ */
+static const struct pci_device_id ixgb_pci_tbl[] = {
+	{PCI_VENDOR_ID_INTEL, IXGB_DEVICE_ID_82597EX,
+	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_VENDOR_ID_INTEL, IXGB_DEVICE_ID_82597EX_CX4,
+	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_VENDOR_ID_INTEL, IXGB_DEVICE_ID_82597EX_SR,
+	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_VENDOR_ID_INTEL, IXGB_DEVICE_ID_82597EX_LR,
+	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+
+	/* required last entry */
+	{0,}
+};
+
+MODULE_DEVICE_TABLE(pci, ixgb_pci_tbl);
+
+/* Local Function Prototypes */
+static int ixgb_init_module(void);
+static void ixgb_exit_module(void);
+static int ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
+static void ixgb_remove(struct pci_dev *pdev);
+static int ixgb_sw_init(struct ixgb_adapter *adapter);
+static int ixgb_open(struct net_device *netdev);
+static int ixgb_close(struct net_device *netdev);
+static void ixgb_configure_tx(struct ixgb_adapter *adapter);
+static void ixgb_configure_rx(struct ixgb_adapter *adapter);
+static void ixgb_setup_rctl(struct ixgb_adapter *adapter);
+static void ixgb_clean_tx_ring(struct ixgb_adapter *adapter);
+static void ixgb_clean_rx_ring(struct ixgb_adapter *adapter);
+static void ixgb_set_multi(struct net_device *netdev);
+static void ixgb_watchdog(struct timer_list *t);
+static netdev_tx_t ixgb_xmit_frame(struct sk_buff *skb,
+				   struct net_device *netdev);
+static int ixgb_change_mtu(struct net_device *netdev, int new_mtu);
+static int ixgb_set_mac(struct net_device *netdev, void *p);
+static irqreturn_t ixgb_intr(int irq, void *data);
+static bool ixgb_clean_tx_irq(struct ixgb_adapter *adapter);
+
+static int ixgb_clean(struct napi_struct *, int);
+static bool ixgb_clean_rx_irq(struct ixgb_adapter *, int *, int);
+static void ixgb_alloc_rx_buffers(struct ixgb_adapter *, int);
+
+static void ixgb_tx_timeout(struct net_device *dev, unsigned int txqueue);
+static void ixgb_tx_timeout_task(struct work_struct *work);
+
+static void ixgb_vlan_strip_enable(struct ixgb_adapter *adapter);
+static void ixgb_vlan_strip_disable(struct ixgb_adapter *adapter);
+static int ixgb_vlan_rx_add_vid(struct net_device *netdev,
+				__be16 proto, u16 vid);
+static int ixgb_vlan_rx_kill_vid(struct net_device *netdev,
+				 __be16 proto, u16 vid);
+static void ixgb_restore_vlan(struct ixgb_adapter *adapter);
+
+static pci_ers_result_t ixgb_io_error_detected (struct pci_dev *pdev,
+                             pci_channel_state_t state);
+static pci_ers_result_t ixgb_io_slot_reset (struct pci_dev *pdev);
+static void ixgb_io_resume (struct pci_dev *pdev);
+
+static const struct pci_error_handlers ixgb_err_handler = {
+	.error_detected = ixgb_io_error_detected,
+	.slot_reset = ixgb_io_slot_reset,
+	.resume = ixgb_io_resume,
+};
+
+static struct pci_driver ixgb_driver = {
+	.name     = ixgb_driver_name,
+	.id_table = ixgb_pci_tbl,
+	.probe    = ixgb_probe,
+	.remove   = ixgb_remove,
+	.err_handler = &ixgb_err_handler
+};
+
+MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
+MODULE_DESCRIPTION("Intel(R) PRO/10GbE Network Driver");
+MODULE_LICENSE("GPL v2");
+
+#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV|NETIF_MSG_PROBE|NETIF_MSG_LINK)
+static int debug = -1;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
+
+/**
+ * ixgb_init_module - Driver Registration Routine
+ *
+ * ixgb_init_module is the first routine called when the driver is
+ * loaded. All it does is register with the PCI subsystem.
+ **/
+
+static int __init
+ixgb_init_module(void)
+{
+	pr_info("%s\n", ixgb_driver_string);
+	pr_info("%s\n", ixgb_copyright);
+
+	return pci_register_driver(&ixgb_driver);
+}
+
+module_init(ixgb_init_module);
+
+/**
+ * ixgb_exit_module - Driver Exit Cleanup Routine
+ *
+ * ixgb_exit_module is called just before the driver is removed
+ * from memory.
+ **/
+
+static void __exit
+ixgb_exit_module(void)
+{
+	pci_unregister_driver(&ixgb_driver);
+}
+
+module_exit(ixgb_exit_module);
+
+/**
+ * ixgb_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ **/
+
+static void
+ixgb_irq_disable(struct ixgb_adapter *adapter)
+{
+	IXGB_WRITE_REG(&adapter->hw, IMC, ~0);
+	IXGB_WRITE_FLUSH(&adapter->hw);
+	synchronize_irq(adapter->pdev->irq);
+}
+
+/**
+ * ixgb_irq_enable - Enable default interrupt generation settings
+ * @adapter: board private structure
+ **/
+
+static void
+ixgb_irq_enable(struct ixgb_adapter *adapter)
+{
+	u32 val = IXGB_INT_RXT0 | IXGB_INT_RXDMT0 |
+		  IXGB_INT_TXDW | IXGB_INT_LSC;
+	if (adapter->hw.subsystem_vendor_id == PCI_VENDOR_ID_SUN)
+		val |= IXGB_INT_GPI0;
+	IXGB_WRITE_REG(&adapter->hw, IMS, val);
+	IXGB_WRITE_FLUSH(&adapter->hw);
+}
+
+int
+ixgb_up(struct ixgb_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	int err, irq_flags = IRQF_SHARED;
+	int max_frame = netdev->mtu + ENET_HEADER_SIZE + ENET_FCS_LENGTH;
+	struct ixgb_hw *hw = &adapter->hw;
+
+	/* hardware has been reset, we need to reload some things */
+
+	ixgb_rar_set(hw, netdev->dev_addr, 0);
+	ixgb_set_multi(netdev);
+
+	ixgb_restore_vlan(adapter);
+
+	ixgb_configure_tx(adapter);
+	ixgb_setup_rctl(adapter);
+	ixgb_configure_rx(adapter);
+	ixgb_alloc_rx_buffers(adapter, IXGB_DESC_UNUSED(&adapter->rx_ring));
+
+	/* disable interrupts and get the hardware into a known state */
+	IXGB_WRITE_REG(&adapter->hw, IMC, 0xffffffff);
+
+	/* only enable MSI if bus is in PCI-X mode */
+	if (IXGB_READ_REG(&adapter->hw, STATUS) & IXGB_STATUS_PCIX_MODE) {
+		err = pci_enable_msi(adapter->pdev);
+		if (!err) {
+			adapter->have_msi = true;
+			irq_flags = 0;
+		}
+		/* proceed to try to request regular interrupt */
+	}
+
+	err = request_irq(adapter->pdev->irq, ixgb_intr, irq_flags,
+	                  netdev->name, netdev);
+	if (err) {
+		if (adapter->have_msi)
+			pci_disable_msi(adapter->pdev);
+		netif_err(adapter, probe, adapter->netdev,
+			  "Unable to allocate interrupt Error: %d\n", err);
+		return err;
+	}
+
+	if ((hw->max_frame_size != max_frame) ||
+		(hw->max_frame_size !=
+		(IXGB_READ_REG(hw, MFS) >> IXGB_MFS_SHIFT))) {
+
+		hw->max_frame_size = max_frame;
+
+		IXGB_WRITE_REG(hw, MFS, hw->max_frame_size << IXGB_MFS_SHIFT);
+
+		if (hw->max_frame_size >
+		   IXGB_MAX_ENET_FRAME_SIZE_WITHOUT_FCS + ENET_FCS_LENGTH) {
+			u32 ctrl0 = IXGB_READ_REG(hw, CTRL0);
+
+			if (!(ctrl0 & IXGB_CTRL0_JFE)) {
+				ctrl0 |= IXGB_CTRL0_JFE;
+				IXGB_WRITE_REG(hw, CTRL0, ctrl0);
+			}
+		}
+	}
+
+	clear_bit(__IXGB_DOWN, &adapter->flags);
+
+	napi_enable(&adapter->napi);
+	ixgb_irq_enable(adapter);
+
+	netif_wake_queue(netdev);
+
+	mod_timer(&adapter->watchdog_timer, jiffies);
+
+	return 0;
+}
+
+void
+ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog)
+{
+	struct net_device *netdev = adapter->netdev;
+
+	/* prevent the interrupt handler from restarting watchdog */
+	set_bit(__IXGB_DOWN, &adapter->flags);
+
+	netif_carrier_off(netdev);
+
+	napi_disable(&adapter->napi);
+	/* waiting for NAPI to complete can re-enable interrupts */
+	ixgb_irq_disable(adapter);
+	free_irq(adapter->pdev->irq, netdev);
+
+	if (adapter->have_msi)
+		pci_disable_msi(adapter->pdev);
+
+	if (kill_watchdog)
+		del_timer_sync(&adapter->watchdog_timer);
+
+	adapter->link_speed = 0;
+	adapter->link_duplex = 0;
+	netif_stop_queue(netdev);
+
+	ixgb_reset(adapter);
+	ixgb_clean_tx_ring(adapter);
+	ixgb_clean_rx_ring(adapter);
+}
+
+void
+ixgb_reset(struct ixgb_adapter *adapter)
+{
+	struct ixgb_hw *hw = &adapter->hw;
+
+	ixgb_adapter_stop(hw);
+	if (!ixgb_init_hw(hw))
+		netif_err(adapter, probe, adapter->netdev, "ixgb_init_hw failed\n");
+
+	/* restore frame size information */
+	IXGB_WRITE_REG(hw, MFS, hw->max_frame_size << IXGB_MFS_SHIFT);
+	if (hw->max_frame_size >
+	    IXGB_MAX_ENET_FRAME_SIZE_WITHOUT_FCS + ENET_FCS_LENGTH) {
+		u32 ctrl0 = IXGB_READ_REG(hw, CTRL0);
+		if (!(ctrl0 & IXGB_CTRL0_JFE)) {
+			ctrl0 |= IXGB_CTRL0_JFE;
+			IXGB_WRITE_REG(hw, CTRL0, ctrl0);
+		}
+	}
+}
+
+static netdev_features_t
+ixgb_fix_features(struct net_device *netdev, netdev_features_t features)
+{
+	/*
+	 * Tx VLAN insertion does not work per HW design when Rx stripping is
+	 * disabled.
+	 */
+	if (!(features & NETIF_F_HW_VLAN_CTAG_RX))
+		features &= ~NETIF_F_HW_VLAN_CTAG_TX;
+
+	return features;
+}
+
+static int
+ixgb_set_features(struct net_device *netdev, netdev_features_t features)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	netdev_features_t changed = features ^ netdev->features;
+
+	if (!(changed & (NETIF_F_RXCSUM|NETIF_F_HW_VLAN_CTAG_RX)))
+		return 0;
+
+	adapter->rx_csum = !!(features & NETIF_F_RXCSUM);
+
+	if (netif_running(netdev)) {
+		ixgb_down(adapter, true);
+		ixgb_up(adapter);
+		ixgb_set_speed_duplex(netdev);
+	} else
+		ixgb_reset(adapter);
+
+	return 0;
+}
+
+
+static const struct net_device_ops ixgb_netdev_ops = {
+	.ndo_open 		= ixgb_open,
+	.ndo_stop		= ixgb_close,
+	.ndo_start_xmit		= ixgb_xmit_frame,
+	.ndo_set_rx_mode	= ixgb_set_multi,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address	= ixgb_set_mac,
+	.ndo_change_mtu		= ixgb_change_mtu,
+	.ndo_tx_timeout		= ixgb_tx_timeout,
+	.ndo_vlan_rx_add_vid	= ixgb_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid	= ixgb_vlan_rx_kill_vid,
+	.ndo_fix_features       = ixgb_fix_features,
+	.ndo_set_features       = ixgb_set_features,
+};
+
+/**
+ * ixgb_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in ixgb_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * ixgb_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
+ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	struct net_device *netdev = NULL;
+	struct ixgb_adapter *adapter;
+	static int cards_found = 0;
+	u8 addr[ETH_ALEN];
+	int i;
+	int err;
+
+	err = pci_enable_device(pdev);
+	if (err)
+		return err;
+
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err) {
+		pr_err("No usable DMA configuration, aborting\n");
+		goto err_dma_mask;
+	}
+
+	err = pci_request_regions(pdev, ixgb_driver_name);
+	if (err)
+		goto err_request_regions;
+
+	pci_set_master(pdev);
+
+	netdev = alloc_etherdev(sizeof(struct ixgb_adapter));
+	if (!netdev) {
+		err = -ENOMEM;
+		goto err_alloc_etherdev;
+	}
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+
+	pci_set_drvdata(pdev, netdev);
+	adapter = netdev_priv(netdev);
+	adapter->netdev = netdev;
+	adapter->pdev = pdev;
+	adapter->hw.back = adapter;
+	adapter->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
+
+	adapter->hw.hw_addr = pci_ioremap_bar(pdev, BAR_0);
+	if (!adapter->hw.hw_addr) {
+		err = -EIO;
+		goto err_ioremap;
+	}
+
+	for (i = BAR_1; i < PCI_STD_NUM_BARS; i++) {
+		if (pci_resource_len(pdev, i) == 0)
+			continue;
+		if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
+			adapter->hw.io_base = pci_resource_start(pdev, i);
+			break;
+		}
+	}
+
+	netdev->netdev_ops = &ixgb_netdev_ops;
+	ixgb_set_ethtool_ops(netdev);
+	netdev->watchdog_timeo = 5 * HZ;
+	netif_napi_add(netdev, &adapter->napi, ixgb_clean);
+
+	strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
+
+	adapter->bd_number = cards_found;
+	adapter->link_speed = 0;
+	adapter->link_duplex = 0;
+
+	/* setup the private structure */
+
+	err = ixgb_sw_init(adapter);
+	if (err)
+		goto err_sw_init;
+
+	netdev->hw_features = NETIF_F_SG |
+			   NETIF_F_TSO |
+			   NETIF_F_HW_CSUM |
+			   NETIF_F_HW_VLAN_CTAG_TX |
+			   NETIF_F_HW_VLAN_CTAG_RX;
+	netdev->features = netdev->hw_features |
+			   NETIF_F_HW_VLAN_CTAG_FILTER;
+	netdev->hw_features |= NETIF_F_RXCSUM;
+
+	netdev->features |= NETIF_F_HIGHDMA;
+	netdev->vlan_features |= NETIF_F_HIGHDMA;
+
+	/* MTU range: 68 - 16114 */
+	netdev->min_mtu = ETH_MIN_MTU;
+	netdev->max_mtu = IXGB_MAX_JUMBO_FRAME_SIZE - ETH_HLEN;
+
+	/* make sure the EEPROM is good */
+
+	if (!ixgb_validate_eeprom_checksum(&adapter->hw)) {
+		netif_err(adapter, probe, adapter->netdev,
+			  "The EEPROM Checksum Is Not Valid\n");
+		err = -EIO;
+		goto err_eeprom;
+	}
+
+	ixgb_get_ee_mac_addr(&adapter->hw, addr);
+	eth_hw_addr_set(netdev, addr);
+
+	if (!is_valid_ether_addr(netdev->dev_addr)) {
+		netif_err(adapter, probe, adapter->netdev, "Invalid MAC Address\n");
+		err = -EIO;
+		goto err_eeprom;
+	}
+
+	adapter->part_num = ixgb_get_ee_pba_number(&adapter->hw);
+
+	timer_setup(&adapter->watchdog_timer, ixgb_watchdog, 0);
+
+	INIT_WORK(&adapter->tx_timeout_task, ixgb_tx_timeout_task);
+
+	strcpy(netdev->name, "eth%d");
+	err = register_netdev(netdev);
+	if (err)
+		goto err_register;
+
+	/* carrier off reporting is important to ethtool even BEFORE open */
+	netif_carrier_off(netdev);
+
+	netif_info(adapter, probe, adapter->netdev,
+		   "Intel(R) PRO/10GbE Network Connection\n");
+	ixgb_check_options(adapter);
+	/* reset the hardware with the new settings */
+
+	ixgb_reset(adapter);
+
+	cards_found++;
+	return 0;
+
+err_register:
+err_sw_init:
+err_eeprom:
+	iounmap(adapter->hw.hw_addr);
+err_ioremap:
+	free_netdev(netdev);
+err_alloc_etherdev:
+	pci_release_regions(pdev);
+err_request_regions:
+err_dma_mask:
+	pci_disable_device(pdev);
+	return err;
+}
+
+/**
+ * ixgb_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * ixgb_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
+ixgb_remove(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+
+	cancel_work_sync(&adapter->tx_timeout_task);
+
+	unregister_netdev(netdev);
+
+	iounmap(adapter->hw.hw_addr);
+	pci_release_regions(pdev);
+
+	free_netdev(netdev);
+	pci_disable_device(pdev);
+}
+
+/**
+ * ixgb_sw_init - Initialize general software structures (struct ixgb_adapter)
+ * @adapter: board private structure to initialize
+ *
+ * ixgb_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
+ixgb_sw_init(struct ixgb_adapter *adapter)
+{
+	struct ixgb_hw *hw = &adapter->hw;
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+
+	/* PCI config space info */
+
+	hw->vendor_id = pdev->vendor;
+	hw->device_id = pdev->device;
+	hw->subsystem_vendor_id = pdev->subsystem_vendor;
+	hw->subsystem_id = pdev->subsystem_device;
+
+	hw->max_frame_size = netdev->mtu + ENET_HEADER_SIZE + ENET_FCS_LENGTH;
+	adapter->rx_buffer_len = hw->max_frame_size + 8; /* + 8 for errata */
+
+	if ((hw->device_id == IXGB_DEVICE_ID_82597EX) ||
+	    (hw->device_id == IXGB_DEVICE_ID_82597EX_CX4) ||
+	    (hw->device_id == IXGB_DEVICE_ID_82597EX_LR) ||
+	    (hw->device_id == IXGB_DEVICE_ID_82597EX_SR))
+		hw->mac_type = ixgb_82597;
+	else {
+		/* should never have loaded on this device */
+		netif_err(adapter, probe, adapter->netdev, "unsupported device id\n");
+	}
+
+	/* enable flow control to be programmed */
+	hw->fc.send_xon = 1;
+
+	set_bit(__IXGB_DOWN, &adapter->flags);
+	return 0;
+}
+
+/**
+ * ixgb_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
+ixgb_open(struct net_device *netdev)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	int err;
+
+	/* allocate transmit descriptors */
+	err = ixgb_setup_tx_resources(adapter);
+	if (err)
+		goto err_setup_tx;
+
+	netif_carrier_off(netdev);
+
+	/* allocate receive descriptors */
+
+	err = ixgb_setup_rx_resources(adapter);
+	if (err)
+		goto err_setup_rx;
+
+	err = ixgb_up(adapter);
+	if (err)
+		goto err_up;
+
+	netif_start_queue(netdev);
+
+	return 0;
+
+err_up:
+	ixgb_free_rx_resources(adapter);
+err_setup_rx:
+	ixgb_free_tx_resources(adapter);
+err_setup_tx:
+	ixgb_reset(adapter);
+
+	return err;
+}
+
+/**
+ * ixgb_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
+ixgb_close(struct net_device *netdev)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+
+	ixgb_down(adapter, true);
+
+	ixgb_free_tx_resources(adapter);
+	ixgb_free_rx_resources(adapter);
+
+	return 0;
+}
+
+/**
+ * ixgb_setup_tx_resources - allocate Tx resources (Descriptors)
+ * @adapter: board private structure
+ *
+ * Return 0 on success, negative on failure
+ **/
+
+int
+ixgb_setup_tx_resources(struct ixgb_adapter *adapter)
+{
+	struct ixgb_desc_ring *txdr = &adapter->tx_ring;
+	struct pci_dev *pdev = adapter->pdev;
+	int size;
+
+	size = sizeof(struct ixgb_buffer) * txdr->count;
+	txdr->buffer_info = vzalloc(size);
+	if (!txdr->buffer_info)
+		return -ENOMEM;
+
+	/* round up to nearest 4K */
+
+	txdr->size = txdr->count * sizeof(struct ixgb_tx_desc);
+	txdr->size = ALIGN(txdr->size, 4096);
+
+	txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma,
+					GFP_KERNEL);
+	if (!txdr->desc) {
+		vfree(txdr->buffer_info);
+		return -ENOMEM;
+	}
+
+	txdr->next_to_use = 0;
+	txdr->next_to_clean = 0;
+
+	return 0;
+}
+
+/**
+ * ixgb_configure_tx - Configure 82597 Transmit Unit after Reset.
+ * @adapter: board private structure
+ *
+ * Configure the Tx unit of the MAC after a reset.
+ **/
+
+static void
+ixgb_configure_tx(struct ixgb_adapter *adapter)
+{
+	u64 tdba = adapter->tx_ring.dma;
+	u32 tdlen = adapter->tx_ring.count * sizeof(struct ixgb_tx_desc);
+	u32 tctl;
+	struct ixgb_hw *hw = &adapter->hw;
+
+	/* Setup the Base and Length of the Tx Descriptor Ring
+	 * tx_ring.dma can be either a 32 or 64 bit value
+	 */
+
+	IXGB_WRITE_REG(hw, TDBAL, (tdba & 0x00000000ffffffffULL));
+	IXGB_WRITE_REG(hw, TDBAH, (tdba >> 32));
+
+	IXGB_WRITE_REG(hw, TDLEN, tdlen);
+
+	/* Setup the HW Tx Head and Tail descriptor pointers */
+
+	IXGB_WRITE_REG(hw, TDH, 0);
+	IXGB_WRITE_REG(hw, TDT, 0);
+
+	/* don't set up txdctl, it induces performance problems if configured
+	 * incorrectly */
+	/* Set the Tx Interrupt Delay register */
+
+	IXGB_WRITE_REG(hw, TIDV, adapter->tx_int_delay);
+
+	/* Program the Transmit Control Register */
+
+	tctl = IXGB_TCTL_TCE | IXGB_TCTL_TXEN | IXGB_TCTL_TPDE;
+	IXGB_WRITE_REG(hw, TCTL, tctl);
+
+	/* Setup Transmit Descriptor Settings for this adapter */
+	adapter->tx_cmd_type =
+		IXGB_TX_DESC_TYPE |
+		(adapter->tx_int_delay_enable ? IXGB_TX_DESC_CMD_IDE : 0);
+}
+
+/**
+ * ixgb_setup_rx_resources - allocate Rx resources (Descriptors)
+ * @adapter: board private structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+
+int
+ixgb_setup_rx_resources(struct ixgb_adapter *adapter)
+{
+	struct ixgb_desc_ring *rxdr = &adapter->rx_ring;
+	struct pci_dev *pdev = adapter->pdev;
+	int size;
+
+	size = sizeof(struct ixgb_buffer) * rxdr->count;
+	rxdr->buffer_info = vzalloc(size);
+	if (!rxdr->buffer_info)
+		return -ENOMEM;
+
+	/* Round up to nearest 4K */
+
+	rxdr->size = rxdr->count * sizeof(struct ixgb_rx_desc);
+	rxdr->size = ALIGN(rxdr->size, 4096);
+
+	rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
+					GFP_KERNEL);
+
+	if (!rxdr->desc) {
+		vfree(rxdr->buffer_info);
+		return -ENOMEM;
+	}
+
+	rxdr->next_to_clean = 0;
+	rxdr->next_to_use = 0;
+
+	return 0;
+}
+
+/**
+ * ixgb_setup_rctl - configure the receive control register
+ * @adapter: Board private structure
+ **/
+
+static void
+ixgb_setup_rctl(struct ixgb_adapter *adapter)
+{
+	u32 rctl;
+
+	rctl = IXGB_READ_REG(&adapter->hw, RCTL);
+
+	rctl &= ~(3 << IXGB_RCTL_MO_SHIFT);
+
+	rctl |=
+		IXGB_RCTL_BAM | IXGB_RCTL_RDMTS_1_2 |
+		IXGB_RCTL_RXEN | IXGB_RCTL_CFF |
+		(adapter->hw.mc_filter_type << IXGB_RCTL_MO_SHIFT);
+
+	rctl |= IXGB_RCTL_SECRC;
+
+	if (adapter->rx_buffer_len <= IXGB_RXBUFFER_2048)
+		rctl |= IXGB_RCTL_BSIZE_2048;
+	else if (adapter->rx_buffer_len <= IXGB_RXBUFFER_4096)
+		rctl |= IXGB_RCTL_BSIZE_4096;
+	else if (adapter->rx_buffer_len <= IXGB_RXBUFFER_8192)
+		rctl |= IXGB_RCTL_BSIZE_8192;
+	else if (adapter->rx_buffer_len <= IXGB_RXBUFFER_16384)
+		rctl |= IXGB_RCTL_BSIZE_16384;
+
+	IXGB_WRITE_REG(&adapter->hw, RCTL, rctl);
+}
+
+/**
+ * ixgb_configure_rx - Configure 82597 Receive Unit after Reset.
+ * @adapter: board private structure
+ *
+ * Configure the Rx unit of the MAC after a reset.
+ **/
+
+static void
+ixgb_configure_rx(struct ixgb_adapter *adapter)
+{
+	u64 rdba = adapter->rx_ring.dma;
+	u32 rdlen = adapter->rx_ring.count * sizeof(struct ixgb_rx_desc);
+	struct ixgb_hw *hw = &adapter->hw;
+	u32 rctl;
+	u32 rxcsum;
+
+	/* make sure receives are disabled while setting up the descriptors */
+
+	rctl = IXGB_READ_REG(hw, RCTL);
+	IXGB_WRITE_REG(hw, RCTL, rctl & ~IXGB_RCTL_RXEN);
+
+	/* set the Receive Delay Timer Register */
+
+	IXGB_WRITE_REG(hw, RDTR, adapter->rx_int_delay);
+
+	/* Setup the Base and Length of the Rx Descriptor Ring */
+
+	IXGB_WRITE_REG(hw, RDBAL, (rdba & 0x00000000ffffffffULL));
+	IXGB_WRITE_REG(hw, RDBAH, (rdba >> 32));
+
+	IXGB_WRITE_REG(hw, RDLEN, rdlen);
+
+	/* Setup the HW Rx Head and Tail Descriptor Pointers */
+	IXGB_WRITE_REG(hw, RDH, 0);
+	IXGB_WRITE_REG(hw, RDT, 0);
+
+	/* due to the hardware errata with RXDCTL, we are unable to use any of
+	 * the performance enhancing features of it without causing other
+	 * subtle bugs, some of the bugs could include receive length
+	 * corruption at high data rates (WTHRESH > 0) and/or receive
+	 * descriptor ring irregularites (particularly in hardware cache) */
+	IXGB_WRITE_REG(hw, RXDCTL, 0);
+
+	/* Enable Receive Checksum Offload for TCP and UDP */
+	if (adapter->rx_csum) {
+		rxcsum = IXGB_READ_REG(hw, RXCSUM);
+		rxcsum |= IXGB_RXCSUM_TUOFL;
+		IXGB_WRITE_REG(hw, RXCSUM, rxcsum);
+	}
+
+	/* Enable Receives */
+
+	IXGB_WRITE_REG(hw, RCTL, rctl);
+}
+
+/**
+ * ixgb_free_tx_resources - Free Tx Resources
+ * @adapter: board private structure
+ *
+ * Free all transmit software resources
+ **/
+
+void
+ixgb_free_tx_resources(struct ixgb_adapter *adapter)
+{
+	struct pci_dev *pdev = adapter->pdev;
+
+	ixgb_clean_tx_ring(adapter);
+
+	vfree(adapter->tx_ring.buffer_info);
+	adapter->tx_ring.buffer_info = NULL;
+
+	dma_free_coherent(&pdev->dev, adapter->tx_ring.size,
+			  adapter->tx_ring.desc, adapter->tx_ring.dma);
+
+	adapter->tx_ring.desc = NULL;
+}
+
+static void
+ixgb_unmap_and_free_tx_resource(struct ixgb_adapter *adapter,
+                                struct ixgb_buffer *buffer_info)
+{
+	if (buffer_info->dma) {
+		if (buffer_info->mapped_as_page)
+			dma_unmap_page(&adapter->pdev->dev, buffer_info->dma,
+				       buffer_info->length, DMA_TO_DEVICE);
+		else
+			dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
+					 buffer_info->length, DMA_TO_DEVICE);
+		buffer_info->dma = 0;
+	}
+
+	if (buffer_info->skb) {
+		dev_kfree_skb_any(buffer_info->skb);
+		buffer_info->skb = NULL;
+	}
+	buffer_info->time_stamp = 0;
+	/* these fields must always be initialized in tx
+	 * buffer_info->length = 0;
+	 * buffer_info->next_to_watch = 0; */
+}
+
+/**
+ * ixgb_clean_tx_ring - Free Tx Buffers
+ * @adapter: board private structure
+ **/
+
+static void
+ixgb_clean_tx_ring(struct ixgb_adapter *adapter)
+{
+	struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
+	struct ixgb_buffer *buffer_info;
+	unsigned long size;
+	unsigned int i;
+
+	/* Free all the Tx ring sk_buffs */
+
+	for (i = 0; i < tx_ring->count; i++) {
+		buffer_info = &tx_ring->buffer_info[i];
+		ixgb_unmap_and_free_tx_resource(adapter, buffer_info);
+	}
+
+	size = sizeof(struct ixgb_buffer) * tx_ring->count;
+	memset(tx_ring->buffer_info, 0, size);
+
+	/* Zero out the descriptor ring */
+
+	memset(tx_ring->desc, 0, tx_ring->size);
+
+	tx_ring->next_to_use = 0;
+	tx_ring->next_to_clean = 0;
+
+	IXGB_WRITE_REG(&adapter->hw, TDH, 0);
+	IXGB_WRITE_REG(&adapter->hw, TDT, 0);
+}
+
+/**
+ * ixgb_free_rx_resources - Free Rx Resources
+ * @adapter: board private structure
+ *
+ * Free all receive software resources
+ **/
+
+void
+ixgb_free_rx_resources(struct ixgb_adapter *adapter)
+{
+	struct ixgb_desc_ring *rx_ring = &adapter->rx_ring;
+	struct pci_dev *pdev = adapter->pdev;
+
+	ixgb_clean_rx_ring(adapter);
+
+	vfree(rx_ring->buffer_info);
+	rx_ring->buffer_info = NULL;
+
+	dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
+			  rx_ring->dma);
+
+	rx_ring->desc = NULL;
+}
+
+/**
+ * ixgb_clean_rx_ring - Free Rx Buffers
+ * @adapter: board private structure
+ **/
+
+static void
+ixgb_clean_rx_ring(struct ixgb_adapter *adapter)
+{
+	struct ixgb_desc_ring *rx_ring = &adapter->rx_ring;
+	struct ixgb_buffer *buffer_info;
+	struct pci_dev *pdev = adapter->pdev;
+	unsigned long size;
+	unsigned int i;
+
+	/* 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) {
+			dma_unmap_single(&pdev->dev,
+					 buffer_info->dma,
+					 buffer_info->length,
+					 DMA_FROM_DEVICE);
+			buffer_info->dma = 0;
+			buffer_info->length = 0;
+		}
+
+		if (buffer_info->skb) {
+			dev_kfree_skb(buffer_info->skb);
+			buffer_info->skb = NULL;
+		}
+	}
+
+	size = sizeof(struct ixgb_buffer) * rx_ring->count;
+	memset(rx_ring->buffer_info, 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;
+
+	IXGB_WRITE_REG(&adapter->hw, RDH, 0);
+	IXGB_WRITE_REG(&adapter->hw, RDT, 0);
+}
+
+/**
+ * ixgb_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
+ixgb_set_mac(struct net_device *netdev, void *p)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct sockaddr *addr = p;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	eth_hw_addr_set(netdev, addr->sa_data);
+
+	ixgb_rar_set(&adapter->hw, addr->sa_data, 0);
+
+	return 0;
+}
+
+/**
+ * ixgb_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
+ixgb_set_multi(struct net_device *netdev)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct ixgb_hw *hw = &adapter->hw;
+	struct netdev_hw_addr *ha;
+	u32 rctl;
+
+	/* Check for Promiscuous and All Multicast modes */
+
+	rctl = IXGB_READ_REG(hw, RCTL);
+
+	if (netdev->flags & IFF_PROMISC) {
+		rctl |= (IXGB_RCTL_UPE | IXGB_RCTL_MPE);
+		/* disable VLAN filtering */
+		rctl &= ~IXGB_RCTL_CFIEN;
+		rctl &= ~IXGB_RCTL_VFE;
+	} else {
+		if (netdev->flags & IFF_ALLMULTI) {
+			rctl |= IXGB_RCTL_MPE;
+			rctl &= ~IXGB_RCTL_UPE;
+		} else {
+			rctl &= ~(IXGB_RCTL_UPE | IXGB_RCTL_MPE);
+		}
+		/* enable VLAN filtering */
+		rctl |= IXGB_RCTL_VFE;
+		rctl &= ~IXGB_RCTL_CFIEN;
+	}
+
+	if (netdev_mc_count(netdev) > IXGB_MAX_NUM_MULTICAST_ADDRESSES) {
+		rctl |= IXGB_RCTL_MPE;
+		IXGB_WRITE_REG(hw, RCTL, rctl);
+	} else {
+		u8 *mta = kmalloc_array(ETH_ALEN,
+				        IXGB_MAX_NUM_MULTICAST_ADDRESSES,
+				        GFP_ATOMIC);
+		u8 *addr;
+		if (!mta)
+			goto alloc_failed;
+
+		IXGB_WRITE_REG(hw, RCTL, rctl);
+
+		addr = mta;
+		netdev_for_each_mc_addr(ha, netdev) {
+			memcpy(addr, ha->addr, ETH_ALEN);
+			addr += ETH_ALEN;
+		}
+
+		ixgb_mc_addr_list_update(hw, mta, netdev_mc_count(netdev), 0);
+		kfree(mta);
+	}
+
+alloc_failed:
+	if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX)
+		ixgb_vlan_strip_enable(adapter);
+	else
+		ixgb_vlan_strip_disable(adapter);
+
+}
+
+/**
+ * ixgb_watchdog - Timer Call-back
+ * @t: pointer to timer_list containing our private info pointer
+ **/
+
+static void
+ixgb_watchdog(struct timer_list *t)
+{
+	struct ixgb_adapter *adapter = from_timer(adapter, t, watchdog_timer);
+	struct net_device *netdev = adapter->netdev;
+	struct ixgb_desc_ring *txdr = &adapter->tx_ring;
+
+	ixgb_check_for_link(&adapter->hw);
+
+	if (ixgb_check_for_bad_link(&adapter->hw)) {
+		/* force the reset path */
+		netif_stop_queue(netdev);
+	}
+
+	if (adapter->hw.link_up) {
+		if (!netif_carrier_ok(netdev)) {
+			netdev_info(netdev,
+				    "NIC Link is Up 10 Gbps Full Duplex, Flow Control: %s\n",
+				    (adapter->hw.fc.type == ixgb_fc_full) ?
+				    "RX/TX" :
+				    (adapter->hw.fc.type == ixgb_fc_rx_pause) ?
+				     "RX" :
+				    (adapter->hw.fc.type == ixgb_fc_tx_pause) ?
+				    "TX" : "None");
+			adapter->link_speed = 10000;
+			adapter->link_duplex = FULL_DUPLEX;
+			netif_carrier_on(netdev);
+		}
+	} else {
+		if (netif_carrier_ok(netdev)) {
+			adapter->link_speed = 0;
+			adapter->link_duplex = 0;
+			netdev_info(netdev, "NIC Link is Down\n");
+			netif_carrier_off(netdev);
+		}
+	}
+
+	ixgb_update_stats(adapter);
+
+	if (!netif_carrier_ok(netdev)) {
+		if (IXGB_DESC_UNUSED(txdr) + 1 < txdr->count) {
+			/* We've lost link, so the controller stops DMA,
+			 * but we've got queued Tx work that's never going
+			 * to get done, so reset controller to flush Tx.
+			 * (Do the reset outside of interrupt context). */
+			schedule_work(&adapter->tx_timeout_task);
+			/* return immediately since reset is imminent */
+			return;
+		}
+	}
+
+	/* Force detection of hung controller every watchdog period */
+	adapter->detect_tx_hung = true;
+
+	/* generate an interrupt to force clean up of any stragglers */
+	IXGB_WRITE_REG(&adapter->hw, ICS, IXGB_INT_TXDW);
+
+	/* Reset the timer */
+	mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
+}
+
+#define IXGB_TX_FLAGS_CSUM		0x00000001
+#define IXGB_TX_FLAGS_VLAN		0x00000002
+#define IXGB_TX_FLAGS_TSO		0x00000004
+
+static int
+ixgb_tso(struct ixgb_adapter *adapter, struct sk_buff *skb)
+{
+	struct ixgb_context_desc *context_desc;
+	unsigned int i;
+	u8 ipcss, ipcso, tucss, tucso, hdr_len;
+	u16 ipcse, tucse, mss;
+
+	if (likely(skb_is_gso(skb))) {
+		struct ixgb_buffer *buffer_info;
+		struct iphdr *iph;
+		int err;
+
+		err = skb_cow_head(skb, 0);
+		if (err < 0)
+			return err;
+
+		hdr_len = skb_tcp_all_headers(skb);
+		mss = skb_shinfo(skb)->gso_size;
+		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);
+		ipcss = skb_network_offset(skb);
+		ipcso = (void *)&(iph->check) - (void *)skb->data;
+		ipcse = skb_transport_offset(skb) - 1;
+		tucss = skb_transport_offset(skb);
+		tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
+		tucse = 0;
+
+		i = adapter->tx_ring.next_to_use;
+		context_desc = IXGB_CONTEXT_DESC(adapter->tx_ring, i);
+		buffer_info = &adapter->tx_ring.buffer_info[i];
+		WARN_ON(buffer_info->dma != 0);
+
+		context_desc->ipcss = ipcss;
+		context_desc->ipcso = ipcso;
+		context_desc->ipcse = cpu_to_le16(ipcse);
+		context_desc->tucss = tucss;
+		context_desc->tucso = tucso;
+		context_desc->tucse = cpu_to_le16(tucse);
+		context_desc->mss = cpu_to_le16(mss);
+		context_desc->hdr_len = hdr_len;
+		context_desc->status = 0;
+		context_desc->cmd_type_len = cpu_to_le32(
+						  IXGB_CONTEXT_DESC_TYPE
+						| IXGB_CONTEXT_DESC_CMD_TSE
+						| IXGB_CONTEXT_DESC_CMD_IP
+						| IXGB_CONTEXT_DESC_CMD_TCP
+						| IXGB_CONTEXT_DESC_CMD_IDE
+						| (skb->len - (hdr_len)));
+
+
+		if (++i == adapter->tx_ring.count) i = 0;
+		adapter->tx_ring.next_to_use = i;
+
+		return 1;
+	}
+
+	return 0;
+}
+
+static bool
+ixgb_tx_csum(struct ixgb_adapter *adapter, struct sk_buff *skb)
+{
+	struct ixgb_context_desc *context_desc;
+	unsigned int i;
+	u8 css, cso;
+
+	if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
+		struct ixgb_buffer *buffer_info;
+		css = skb_checksum_start_offset(skb);
+		cso = css + skb->csum_offset;
+
+		i = adapter->tx_ring.next_to_use;
+		context_desc = IXGB_CONTEXT_DESC(adapter->tx_ring, i);
+		buffer_info = &adapter->tx_ring.buffer_info[i];
+		WARN_ON(buffer_info->dma != 0);
+
+		context_desc->tucss = css;
+		context_desc->tucso = cso;
+		context_desc->tucse = 0;
+		/* zero out any previously existing data in one instruction */
+		*(u32 *)&(context_desc->ipcss) = 0;
+		context_desc->status = 0;
+		context_desc->hdr_len = 0;
+		context_desc->mss = 0;
+		context_desc->cmd_type_len =
+			cpu_to_le32(IXGB_CONTEXT_DESC_TYPE
+				    | IXGB_TX_DESC_CMD_IDE);
+
+		if (++i == adapter->tx_ring.count) i = 0;
+		adapter->tx_ring.next_to_use = i;
+
+		return true;
+	}
+
+	return false;
+}
+
+#define IXGB_MAX_TXD_PWR	14
+#define IXGB_MAX_DATA_PER_TXD	(1<<IXGB_MAX_TXD_PWR)
+
+static int
+ixgb_tx_map(struct ixgb_adapter *adapter, struct sk_buff *skb,
+	    unsigned int first)
+{
+	struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
+	struct pci_dev *pdev = adapter->pdev;
+	struct ixgb_buffer *buffer_info;
+	int len = skb_headlen(skb);
+	unsigned int offset = 0, size, count = 0, i;
+	unsigned int mss = skb_shinfo(skb)->gso_size;
+	unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
+	unsigned int f;
+
+	i = tx_ring->next_to_use;
+
+	while (len) {
+		buffer_info = &tx_ring->buffer_info[i];
+		size = min(len, IXGB_MAX_DATA_PER_TXD);
+		/* Workaround for premature desc write-backs
+		 * in TSO mode.  Append 4-byte sentinel desc */
+		if (unlikely(mss && !nr_frags && size == len && size > 8))
+			size -= 4;
+
+		buffer_info->length = size;
+		WARN_ON(buffer_info->dma != 0);
+		buffer_info->time_stamp = jiffies;
+		buffer_info->mapped_as_page = false;
+		buffer_info->dma = dma_map_single(&pdev->dev,
+						  skb->data + offset,
+						  size, DMA_TO_DEVICE);
+		if (dma_mapping_error(&pdev->dev, buffer_info->dma))
+			goto dma_error;
+		buffer_info->next_to_watch = 0;
+
+		len -= size;
+		offset += size;
+		count++;
+		if (len) {
+			i++;
+			if (i == tx_ring->count)
+				i = 0;
+		}
+	}
+
+	for (f = 0; f < nr_frags; f++) {
+		const skb_frag_t *frag = &skb_shinfo(skb)->frags[f];
+		len = skb_frag_size(frag);
+		offset = 0;
+
+		while (len) {
+			i++;
+			if (i == tx_ring->count)
+				i = 0;
+
+			buffer_info = &tx_ring->buffer_info[i];
+			size = min(len, IXGB_MAX_DATA_PER_TXD);
+
+			/* Workaround for premature desc write-backs
+			 * in TSO mode.  Append 4-byte sentinel desc */
+			if (unlikely(mss && (f == (nr_frags - 1))
+				     && size == len && size > 8))
+				size -= 4;
+
+			buffer_info->length = size;
+			buffer_info->time_stamp = jiffies;
+			buffer_info->mapped_as_page = true;
+			buffer_info->dma =
+				skb_frag_dma_map(&pdev->dev, frag, offset, size,
+						 DMA_TO_DEVICE);
+			if (dma_mapping_error(&pdev->dev, buffer_info->dma))
+				goto dma_error;
+			buffer_info->next_to_watch = 0;
+
+			len -= size;
+			offset += size;
+			count++;
+		}
+	}
+	tx_ring->buffer_info[i].skb = skb;
+	tx_ring->buffer_info[first].next_to_watch = i;
+
+	return count;
+
+dma_error:
+	dev_err(&pdev->dev, "TX DMA map failed\n");
+	buffer_info->dma = 0;
+	if (count)
+		count--;
+
+	while (count--) {
+		if (i==0)
+			i += tx_ring->count;
+		i--;
+		buffer_info = &tx_ring->buffer_info[i];
+		ixgb_unmap_and_free_tx_resource(adapter, buffer_info);
+	}
+
+	return 0;
+}
+
+static void
+ixgb_tx_queue(struct ixgb_adapter *adapter, int count, int vlan_id,int tx_flags)
+{
+	struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
+	struct ixgb_tx_desc *tx_desc = NULL;
+	struct ixgb_buffer *buffer_info;
+	u32 cmd_type_len = adapter->tx_cmd_type;
+	u8 status = 0;
+	u8 popts = 0;
+	unsigned int i;
+
+	if (tx_flags & IXGB_TX_FLAGS_TSO) {
+		cmd_type_len |= IXGB_TX_DESC_CMD_TSE;
+		popts |= (IXGB_TX_DESC_POPTS_IXSM | IXGB_TX_DESC_POPTS_TXSM);
+	}
+
+	if (tx_flags & IXGB_TX_FLAGS_CSUM)
+		popts |= IXGB_TX_DESC_POPTS_TXSM;
+
+	if (tx_flags & IXGB_TX_FLAGS_VLAN)
+		cmd_type_len |= IXGB_TX_DESC_CMD_VLE;
+
+	i = tx_ring->next_to_use;
+
+	while (count--) {
+		buffer_info = &tx_ring->buffer_info[i];
+		tx_desc = IXGB_TX_DESC(*tx_ring, i);
+		tx_desc->buff_addr = cpu_to_le64(buffer_info->dma);
+		tx_desc->cmd_type_len =
+			cpu_to_le32(cmd_type_len | buffer_info->length);
+		tx_desc->status = status;
+		tx_desc->popts = popts;
+		tx_desc->vlan = cpu_to_le16(vlan_id);
+
+		if (++i == tx_ring->count) i = 0;
+	}
+
+	tx_desc->cmd_type_len |=
+		cpu_to_le32(IXGB_TX_DESC_CMD_EOP | IXGB_TX_DESC_CMD_RS);
+
+	/* 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;
+	IXGB_WRITE_REG(&adapter->hw, TDT, i);
+}
+
+static int __ixgb_maybe_stop_tx(struct net_device *netdev, int size)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
+
+	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 (likely(IXGB_DESC_UNUSED(tx_ring) < size))
+		return -EBUSY;
+
+	/* A reprieve! */
+	netif_start_queue(netdev);
+	++adapter->restart_queue;
+	return 0;
+}
+
+static int ixgb_maybe_stop_tx(struct net_device *netdev,
+                              struct ixgb_desc_ring *tx_ring, int size)
+{
+	if (likely(IXGB_DESC_UNUSED(tx_ring) >= size))
+		return 0;
+	return __ixgb_maybe_stop_tx(netdev, size);
+}
+
+
+/* Tx Descriptors needed, worst case */
+#define TXD_USE_COUNT(S) (((S) >> IXGB_MAX_TXD_PWR) + \
+			 (((S) & (IXGB_MAX_DATA_PER_TXD - 1)) ? 1 : 0))
+#define DESC_NEEDED TXD_USE_COUNT(IXGB_MAX_DATA_PER_TXD) /* skb->date */ + \
+	MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE) + 1 /* for context */ \
+	+ 1 /* one more needed for sentinel TSO workaround */
+
+static netdev_tx_t
+ixgb_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	unsigned int first;
+	unsigned int tx_flags = 0;
+	int vlan_id = 0;
+	int count = 0;
+	int tso;
+
+	if (test_bit(__IXGB_DOWN, &adapter->flags)) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	if (skb->len <= 0) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	if (unlikely(ixgb_maybe_stop_tx(netdev, &adapter->tx_ring,
+                     DESC_NEEDED)))
+		return NETDEV_TX_BUSY;
+
+	if (skb_vlan_tag_present(skb)) {
+		tx_flags |= IXGB_TX_FLAGS_VLAN;
+		vlan_id = skb_vlan_tag_get(skb);
+	}
+
+	first = adapter->tx_ring.next_to_use;
+
+	tso = ixgb_tso(adapter, skb);
+	if (tso < 0) {
+		dev_kfree_skb_any(skb);
+		return NETDEV_TX_OK;
+	}
+
+	if (likely(tso))
+		tx_flags |= IXGB_TX_FLAGS_TSO;
+	else if (ixgb_tx_csum(adapter, skb))
+		tx_flags |= IXGB_TX_FLAGS_CSUM;
+
+	count = ixgb_tx_map(adapter, skb, first);
+
+	if (count) {
+		ixgb_tx_queue(adapter, count, vlan_id, tx_flags);
+		/* Make sure there is space in the ring for the next send. */
+		ixgb_maybe_stop_tx(netdev, &adapter->tx_ring, DESC_NEEDED);
+
+	} else {
+		dev_kfree_skb_any(skb);
+		adapter->tx_ring.buffer_info[first].time_stamp = 0;
+		adapter->tx_ring.next_to_use = first;
+	}
+
+	return NETDEV_TX_OK;
+}
+
+/**
+ * ixgb_tx_timeout - Respond to a Tx Hang
+ * @netdev: network interface device structure
+ * @txqueue: queue hanging (unused)
+ **/
+
+static void
+ixgb_tx_timeout(struct net_device *netdev, unsigned int __always_unused txqueue)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+
+	/* Do the reset outside of interrupt context */
+	schedule_work(&adapter->tx_timeout_task);
+}
+
+static void
+ixgb_tx_timeout_task(struct work_struct *work)
+{
+	struct ixgb_adapter *adapter =
+		container_of(work, struct ixgb_adapter, tx_timeout_task);
+
+	adapter->tx_timeout_count++;
+	ixgb_down(adapter, true);
+	ixgb_up(adapter);
+}
+
+/**
+ * ixgb_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
+ixgb_change_mtu(struct net_device *netdev, int new_mtu)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	int max_frame = new_mtu + ENET_HEADER_SIZE + ENET_FCS_LENGTH;
+
+	if (netif_running(netdev))
+		ixgb_down(adapter, true);
+
+	adapter->rx_buffer_len = max_frame + 8; /* + 8 for errata */
+
+	netdev->mtu = new_mtu;
+
+	if (netif_running(netdev))
+		ixgb_up(adapter);
+
+	return 0;
+}
+
+/**
+ * ixgb_update_stats - Update the board statistics counters.
+ * @adapter: board private structure
+ **/
+
+void
+ixgb_update_stats(struct ixgb_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+
+	/* Prevent stats update while adapter is being reset */
+	if (pci_channel_offline(pdev))
+		return;
+
+	if ((netdev->flags & IFF_PROMISC) || (netdev->flags & IFF_ALLMULTI) ||
+	   (netdev_mc_count(netdev) > IXGB_MAX_NUM_MULTICAST_ADDRESSES)) {
+		u64 multi = IXGB_READ_REG(&adapter->hw, MPRCL);
+		u32 bcast_l = IXGB_READ_REG(&adapter->hw, BPRCL);
+		u32 bcast_h = IXGB_READ_REG(&adapter->hw, BPRCH);
+		u64 bcast = ((u64)bcast_h << 32) | bcast_l;
+
+		multi |= ((u64)IXGB_READ_REG(&adapter->hw, MPRCH) << 32);
+		/* fix up multicast stats by removing broadcasts */
+		if (multi >= bcast)
+			multi -= bcast;
+
+		adapter->stats.mprcl += (multi & 0xFFFFFFFF);
+		adapter->stats.mprch += (multi >> 32);
+		adapter->stats.bprcl += bcast_l;
+		adapter->stats.bprch += bcast_h;
+	} else {
+		adapter->stats.mprcl += IXGB_READ_REG(&adapter->hw, MPRCL);
+		adapter->stats.mprch += IXGB_READ_REG(&adapter->hw, MPRCH);
+		adapter->stats.bprcl += IXGB_READ_REG(&adapter->hw, BPRCL);
+		adapter->stats.bprch += IXGB_READ_REG(&adapter->hw, BPRCH);
+	}
+	adapter->stats.tprl += IXGB_READ_REG(&adapter->hw, TPRL);
+	adapter->stats.tprh += IXGB_READ_REG(&adapter->hw, TPRH);
+	adapter->stats.gprcl += IXGB_READ_REG(&adapter->hw, GPRCL);
+	adapter->stats.gprch += IXGB_READ_REG(&adapter->hw, GPRCH);
+	adapter->stats.uprcl += IXGB_READ_REG(&adapter->hw, UPRCL);
+	adapter->stats.uprch += IXGB_READ_REG(&adapter->hw, UPRCH);
+	adapter->stats.vprcl += IXGB_READ_REG(&adapter->hw, VPRCL);
+	adapter->stats.vprch += IXGB_READ_REG(&adapter->hw, VPRCH);
+	adapter->stats.jprcl += IXGB_READ_REG(&adapter->hw, JPRCL);
+	adapter->stats.jprch += IXGB_READ_REG(&adapter->hw, JPRCH);
+	adapter->stats.gorcl += IXGB_READ_REG(&adapter->hw, GORCL);
+	adapter->stats.gorch += IXGB_READ_REG(&adapter->hw, GORCH);
+	adapter->stats.torl += IXGB_READ_REG(&adapter->hw, TORL);
+	adapter->stats.torh += IXGB_READ_REG(&adapter->hw, TORH);
+	adapter->stats.rnbc += IXGB_READ_REG(&adapter->hw, RNBC);
+	adapter->stats.ruc += IXGB_READ_REG(&adapter->hw, RUC);
+	adapter->stats.roc += IXGB_READ_REG(&adapter->hw, ROC);
+	adapter->stats.rlec += IXGB_READ_REG(&adapter->hw, RLEC);
+	adapter->stats.crcerrs += IXGB_READ_REG(&adapter->hw, CRCERRS);
+	adapter->stats.icbc += IXGB_READ_REG(&adapter->hw, ICBC);
+	adapter->stats.ecbc += IXGB_READ_REG(&adapter->hw, ECBC);
+	adapter->stats.mpc += IXGB_READ_REG(&adapter->hw, MPC);
+	adapter->stats.tptl += IXGB_READ_REG(&adapter->hw, TPTL);
+	adapter->stats.tpth += IXGB_READ_REG(&adapter->hw, TPTH);
+	adapter->stats.gptcl += IXGB_READ_REG(&adapter->hw, GPTCL);
+	adapter->stats.gptch += IXGB_READ_REG(&adapter->hw, GPTCH);
+	adapter->stats.bptcl += IXGB_READ_REG(&adapter->hw, BPTCL);
+	adapter->stats.bptch += IXGB_READ_REG(&adapter->hw, BPTCH);
+	adapter->stats.mptcl += IXGB_READ_REG(&adapter->hw, MPTCL);
+	adapter->stats.mptch += IXGB_READ_REG(&adapter->hw, MPTCH);
+	adapter->stats.uptcl += IXGB_READ_REG(&adapter->hw, UPTCL);
+	adapter->stats.uptch += IXGB_READ_REG(&adapter->hw, UPTCH);
+	adapter->stats.vptcl += IXGB_READ_REG(&adapter->hw, VPTCL);
+	adapter->stats.vptch += IXGB_READ_REG(&adapter->hw, VPTCH);
+	adapter->stats.jptcl += IXGB_READ_REG(&adapter->hw, JPTCL);
+	adapter->stats.jptch += IXGB_READ_REG(&adapter->hw, JPTCH);
+	adapter->stats.gotcl += IXGB_READ_REG(&adapter->hw, GOTCL);
+	adapter->stats.gotch += IXGB_READ_REG(&adapter->hw, GOTCH);
+	adapter->stats.totl += IXGB_READ_REG(&adapter->hw, TOTL);
+	adapter->stats.toth += IXGB_READ_REG(&adapter->hw, TOTH);
+	adapter->stats.dc += IXGB_READ_REG(&adapter->hw, DC);
+	adapter->stats.plt64c += IXGB_READ_REG(&adapter->hw, PLT64C);
+	adapter->stats.tsctc += IXGB_READ_REG(&adapter->hw, TSCTC);
+	adapter->stats.tsctfc += IXGB_READ_REG(&adapter->hw, TSCTFC);
+	adapter->stats.ibic += IXGB_READ_REG(&adapter->hw, IBIC);
+	adapter->stats.rfc += IXGB_READ_REG(&adapter->hw, RFC);
+	adapter->stats.lfc += IXGB_READ_REG(&adapter->hw, LFC);
+	adapter->stats.pfrc += IXGB_READ_REG(&adapter->hw, PFRC);
+	adapter->stats.pftc += IXGB_READ_REG(&adapter->hw, PFTC);
+	adapter->stats.mcfrc += IXGB_READ_REG(&adapter->hw, MCFRC);
+	adapter->stats.mcftc += IXGB_READ_REG(&adapter->hw, MCFTC);
+	adapter->stats.xonrxc += IXGB_READ_REG(&adapter->hw, XONRXC);
+	adapter->stats.xontxc += IXGB_READ_REG(&adapter->hw, XONTXC);
+	adapter->stats.xoffrxc += IXGB_READ_REG(&adapter->hw, XOFFRXC);
+	adapter->stats.xofftxc += IXGB_READ_REG(&adapter->hw, XOFFTXC);
+	adapter->stats.rjc += IXGB_READ_REG(&adapter->hw, RJC);
+
+	/* Fill out the OS statistics structure */
+
+	netdev->stats.rx_packets = adapter->stats.gprcl;
+	netdev->stats.tx_packets = adapter->stats.gptcl;
+	netdev->stats.rx_bytes = adapter->stats.gorcl;
+	netdev->stats.tx_bytes = adapter->stats.gotcl;
+	netdev->stats.multicast = adapter->stats.mprcl;
+	netdev->stats.collisions = 0;
+
+	/* ignore RLEC as it reports errors for padded (<64bytes) frames
+	 * with a length in the type/len field */
+	netdev->stats.rx_errors =
+	    /* adapter->stats.rnbc + */ adapter->stats.crcerrs +
+	    adapter->stats.ruc +
+	    adapter->stats.roc /*+ adapter->stats.rlec */  +
+	    adapter->stats.icbc +
+	    adapter->stats.ecbc + adapter->stats.mpc;
+
+	/* see above
+	 * netdev->stats.rx_length_errors = adapter->stats.rlec;
+	 */
+
+	netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
+	netdev->stats.rx_fifo_errors = adapter->stats.mpc;
+	netdev->stats.rx_missed_errors = adapter->stats.mpc;
+	netdev->stats.rx_over_errors = adapter->stats.mpc;
+
+	netdev->stats.tx_errors = 0;
+	netdev->stats.rx_frame_errors = 0;
+	netdev->stats.tx_aborted_errors = 0;
+	netdev->stats.tx_carrier_errors = 0;
+	netdev->stats.tx_fifo_errors = 0;
+	netdev->stats.tx_heartbeat_errors = 0;
+	netdev->stats.tx_window_errors = 0;
+}
+
+/**
+ * ixgb_intr - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+
+static irqreturn_t
+ixgb_intr(int irq, void *data)
+{
+	struct net_device *netdev = data;
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	struct ixgb_hw *hw = &adapter->hw;
+	u32 icr = IXGB_READ_REG(hw, ICR);
+
+	if (unlikely(!icr))
+		return IRQ_NONE;  /* Not our interrupt */
+
+	if (unlikely(icr & (IXGB_INT_RXSEQ | IXGB_INT_LSC)))
+		if (!test_bit(__IXGB_DOWN, &adapter->flags))
+			mod_timer(&adapter->watchdog_timer, jiffies);
+
+	if (napi_schedule_prep(&adapter->napi)) {
+
+		/* Disable interrupts and register for poll. The flush
+		  of the posted write is intentionally left out.
+		*/
+
+		IXGB_WRITE_REG(&adapter->hw, IMC, ~0);
+		__napi_schedule(&adapter->napi);
+	}
+	return IRQ_HANDLED;
+}
+
+/**
+ * ixgb_clean - NAPI Rx polling callback
+ * @napi: napi struct pointer
+ * @budget: max number of receives to clean
+ **/
+
+static int
+ixgb_clean(struct napi_struct *napi, int budget)
+{
+	struct ixgb_adapter *adapter = container_of(napi, struct ixgb_adapter, napi);
+	int work_done = 0;
+
+	ixgb_clean_tx_irq(adapter);
+	ixgb_clean_rx_irq(adapter, &work_done, budget);
+
+	/* If budget not fully consumed, exit the polling mode */
+	if (work_done < budget) {
+		napi_complete_done(napi, work_done);
+		if (!test_bit(__IXGB_DOWN, &adapter->flags))
+			ixgb_irq_enable(adapter);
+	}
+
+	return work_done;
+}
+
+/**
+ * ixgb_clean_tx_irq - Reclaim resources after transmit completes
+ * @adapter: board private structure
+ **/
+
+static bool
+ixgb_clean_tx_irq(struct ixgb_adapter *adapter)
+{
+	struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
+	struct net_device *netdev = adapter->netdev;
+	struct ixgb_tx_desc *tx_desc, *eop_desc;
+	struct ixgb_buffer *buffer_info;
+	unsigned int i, eop;
+	bool cleaned = false;
+
+	i = tx_ring->next_to_clean;
+	eop = tx_ring->buffer_info[i].next_to_watch;
+	eop_desc = IXGB_TX_DESC(*tx_ring, eop);
+
+	while (eop_desc->status & IXGB_TX_DESC_STATUS_DD) {
+
+		rmb(); /* read buffer_info after eop_desc */
+		for (cleaned = false; !cleaned; ) {
+			tx_desc = IXGB_TX_DESC(*tx_ring, i);
+			buffer_info = &tx_ring->buffer_info[i];
+
+			if (tx_desc->popts &
+			   (IXGB_TX_DESC_POPTS_TXSM |
+			    IXGB_TX_DESC_POPTS_IXSM))
+				adapter->hw_csum_tx_good++;
+
+			ixgb_unmap_and_free_tx_resource(adapter, buffer_info);
+
+			*(u32 *)&(tx_desc->status) = 0;
+
+			cleaned = (i == eop);
+			if (++i == tx_ring->count) i = 0;
+		}
+
+		eop = tx_ring->buffer_info[i].next_to_watch;
+		eop_desc = IXGB_TX_DESC(*tx_ring, eop);
+	}
+
+	tx_ring->next_to_clean = i;
+
+	if (unlikely(cleaned && netif_carrier_ok(netdev) &&
+		     IXGB_DESC_UNUSED(tx_ring) >= DESC_NEEDED)) {
+		/* Make sure that anybody stopping the queue after this
+		 * sees the new next_to_clean. */
+		smp_mb();
+
+		if (netif_queue_stopped(netdev) &&
+		    !(test_bit(__IXGB_DOWN, &adapter->flags))) {
+			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 = false;
+		if (tx_ring->buffer_info[eop].time_stamp &&
+		   time_after(jiffies, tx_ring->buffer_info[eop].time_stamp + HZ)
+		   && !(IXGB_READ_REG(&adapter->hw, STATUS) &
+		        IXGB_STATUS_TXOFF)) {
+			/* detected Tx unit hang */
+			netif_err(adapter, drv, adapter->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",
+				  IXGB_READ_REG(&adapter->hw, TDH),
+				  IXGB_READ_REG(&adapter->hw, TDT),
+				  tx_ring->next_to_use,
+				  tx_ring->next_to_clean,
+				  tx_ring->buffer_info[eop].time_stamp,
+				  eop,
+				  jiffies,
+				  eop_desc->status);
+			netif_stop_queue(netdev);
+		}
+	}
+
+	return cleaned;
+}
+
+/**
+ * ixgb_rx_checksum - Receive Checksum Offload for 82597.
+ * @adapter: board private structure
+ * @rx_desc: receive descriptor
+ * @skb: socket buffer with received data
+ **/
+
+static void
+ixgb_rx_checksum(struct ixgb_adapter *adapter,
+                 struct ixgb_rx_desc *rx_desc,
+                 struct sk_buff *skb)
+{
+	/* Ignore Checksum bit is set OR
+	 * TCP Checksum has not been calculated
+	 */
+	if ((rx_desc->status & IXGB_RX_DESC_STATUS_IXSM) ||
+	   (!(rx_desc->status & IXGB_RX_DESC_STATUS_TCPCS))) {
+		skb_checksum_none_assert(skb);
+		return;
+	}
+
+	/* At this point we know the hardware did the TCP checksum */
+	/* now look at the TCP checksum error bit */
+	if (rx_desc->errors & IXGB_RX_DESC_ERRORS_TCPE) {
+		/* let the stack verify checksum errors */
+		skb_checksum_none_assert(skb);
+		adapter->hw_csum_rx_error++;
+	} else {
+		/* TCP checksum is good */
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		adapter->hw_csum_rx_good++;
+	}
+}
+
+/*
+ * this should improve performance for small packets with large amounts
+ * of reassembly being done in the stack
+ */
+static void ixgb_check_copybreak(struct napi_struct *napi,
+				 struct ixgb_buffer *buffer_info,
+				 u32 length, struct sk_buff **skb)
+{
+	struct sk_buff *new_skb;
+
+	if (length > copybreak)
+		return;
+
+	new_skb = napi_alloc_skb(napi, length);
+	if (!new_skb)
+		return;
+
+	skb_copy_to_linear_data_offset(new_skb, -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;
+}
+
+/**
+ * ixgb_clean_rx_irq - Send received data up the network stack,
+ * @adapter: board private structure
+ * @work_done: output pointer to amount of packets cleaned
+ * @work_to_do: how much work we can complete
+ **/
+
+static bool
+ixgb_clean_rx_irq(struct ixgb_adapter *adapter, int *work_done, int work_to_do)
+{
+	struct ixgb_desc_ring *rx_ring = &adapter->rx_ring;
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+	struct ixgb_rx_desc *rx_desc, *next_rxd;
+	struct ixgb_buffer *buffer_info, *next_buffer, *next2_buffer;
+	u32 length;
+	unsigned int i, j;
+	int cleaned_count = 0;
+	bool cleaned = false;
+
+	i = rx_ring->next_to_clean;
+	rx_desc = IXGB_RX_DESC(*rx_ring, i);
+	buffer_info = &rx_ring->buffer_info[i];
+
+	while (rx_desc->status & IXGB_RX_DESC_STATUS_DD) {
+		struct sk_buff *skb;
+		u8 status;
+
+		if (*work_done >= work_to_do)
+			break;
+
+		(*work_done)++;
+		rmb();	/* read descriptor and rx_buffer_info after status DD */
+		status = rx_desc->status;
+		skb = buffer_info->skb;
+		buffer_info->skb = NULL;
+
+		prefetch(skb->data - NET_IP_ALIGN);
+
+		if (++i == rx_ring->count)
+			i = 0;
+		next_rxd = IXGB_RX_DESC(*rx_ring, i);
+		prefetch(next_rxd);
+
+		j = i + 1;
+		if (j == rx_ring->count)
+			j = 0;
+		next2_buffer = &rx_ring->buffer_info[j];
+		prefetch(next2_buffer);
+
+		next_buffer = &rx_ring->buffer_info[i];
+
+		cleaned = true;
+		cleaned_count++;
+
+		dma_unmap_single(&pdev->dev,
+				 buffer_info->dma,
+				 buffer_info->length,
+				 DMA_FROM_DEVICE);
+		buffer_info->dma = 0;
+
+		length = le16_to_cpu(rx_desc->length);
+		rx_desc->length = 0;
+
+		if (unlikely(!(status & IXGB_RX_DESC_STATUS_EOP))) {
+
+			/* All receives must fit into a single buffer */
+
+			pr_debug("Receive packet consumed multiple buffers length<%x>\n",
+				 length);
+
+			dev_kfree_skb_irq(skb);
+			goto rxdesc_done;
+		}
+
+		if (unlikely(rx_desc->errors &
+		    (IXGB_RX_DESC_ERRORS_CE | IXGB_RX_DESC_ERRORS_SE |
+		     IXGB_RX_DESC_ERRORS_P | IXGB_RX_DESC_ERRORS_RXE))) {
+			dev_kfree_skb_irq(skb);
+			goto rxdesc_done;
+		}
+
+		ixgb_check_copybreak(&adapter->napi, buffer_info, length, &skb);
+
+		/* Good Receive */
+		skb_put(skb, length);
+
+		/* Receive Checksum Offload */
+		ixgb_rx_checksum(adapter, rx_desc, skb);
+
+		skb->protocol = eth_type_trans(skb, netdev);
+		if (status & IXGB_RX_DESC_STATUS_VP)
+			__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
+				       le16_to_cpu(rx_desc->special));
+
+		netif_receive_skb(skb);
+
+rxdesc_done:
+		/* clean up descriptor, might be written over by hw */
+		rx_desc->status = 0;
+
+		/* return some buffers to hardware, one at a time is too slow */
+		if (unlikely(cleaned_count >= IXGB_RX_BUFFER_WRITE)) {
+			ixgb_alloc_rx_buffers(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 = IXGB_DESC_UNUSED(rx_ring);
+	if (cleaned_count)
+		ixgb_alloc_rx_buffers(adapter, cleaned_count);
+
+	return cleaned;
+}
+
+/**
+ * ixgb_alloc_rx_buffers - Replace used receive buffers
+ * @adapter: address of board private structure
+ * @cleaned_count: how many buffers to allocate
+ **/
+
+static void
+ixgb_alloc_rx_buffers(struct ixgb_adapter *adapter, int cleaned_count)
+{
+	struct ixgb_desc_ring *rx_ring = &adapter->rx_ring;
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+	struct ixgb_rx_desc *rx_desc;
+	struct ixgb_buffer *buffer_info;
+	struct sk_buff *skb;
+	unsigned int i;
+	long cleancount;
+
+	i = rx_ring->next_to_use;
+	buffer_info = &rx_ring->buffer_info[i];
+	cleancount = IXGB_DESC_UNUSED(rx_ring);
+
+
+	/* leave three descriptors unused */
+	while (--cleancount > 2 && cleaned_count--) {
+		/* recycle! its good for you */
+		skb = buffer_info->skb;
+		if (skb) {
+			skb_trim(skb, 0);
+			goto map_skb;
+		}
+
+		skb = netdev_alloc_skb_ip_align(netdev, adapter->rx_buffer_len);
+		if (unlikely(!skb)) {
+			/* Better luck next round */
+			adapter->alloc_rx_buff_failed++;
+			break;
+		}
+
+		buffer_info->skb = skb;
+		buffer_info->length = adapter->rx_buffer_len;
+map_skb:
+		buffer_info->dma = dma_map_single(&pdev->dev,
+		                                  skb->data,
+		                                  adapter->rx_buffer_len,
+						  DMA_FROM_DEVICE);
+		if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
+			adapter->alloc_rx_buff_failed++;
+			break;
+		}
+
+		rx_desc = IXGB_RX_DESC(*rx_ring, i);
+		rx_desc->buff_addr = cpu_to_le64(buffer_info->dma);
+		/* guarantee DD bit not set now before h/w gets descriptor
+		 * this is the rest of the workaround for h/w double
+		 * writeback. */
+		rx_desc->status = 0;
+
+
+		if (++i == rx_ring->count)
+			i = 0;
+		buffer_info = &rx_ring->buffer_info[i];
+	}
+
+	if (likely(rx_ring->next_to_use != i)) {
+		rx_ring->next_to_use = i;
+		if (unlikely(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();
+		IXGB_WRITE_REG(&adapter->hw, RDT, i);
+	}
+}
+
+static void
+ixgb_vlan_strip_enable(struct ixgb_adapter *adapter)
+{
+	u32 ctrl;
+
+	/* enable VLAN tag insert/strip */
+	ctrl = IXGB_READ_REG(&adapter->hw, CTRL0);
+	ctrl |= IXGB_CTRL0_VME;
+	IXGB_WRITE_REG(&adapter->hw, CTRL0, ctrl);
+}
+
+static void
+ixgb_vlan_strip_disable(struct ixgb_adapter *adapter)
+{
+	u32 ctrl;
+
+	/* disable VLAN tag insert/strip */
+	ctrl = IXGB_READ_REG(&adapter->hw, CTRL0);
+	ctrl &= ~IXGB_CTRL0_VME;
+	IXGB_WRITE_REG(&adapter->hw, CTRL0, ctrl);
+}
+
+static int
+ixgb_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	u32 vfta, index;
+
+	/* add VID to filter table */
+
+	index = (vid >> 5) & 0x7F;
+	vfta = IXGB_READ_REG_ARRAY(&adapter->hw, VFTA, index);
+	vfta |= (1 << (vid & 0x1F));
+	ixgb_write_vfta(&adapter->hw, index, vfta);
+	set_bit(vid, adapter->active_vlans);
+
+	return 0;
+}
+
+static int
+ixgb_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid)
+{
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	u32 vfta, index;
+
+	/* remove VID from filter table */
+
+	index = (vid >> 5) & 0x7F;
+	vfta = IXGB_READ_REG_ARRAY(&adapter->hw, VFTA, index);
+	vfta &= ~(1 << (vid & 0x1F));
+	ixgb_write_vfta(&adapter->hw, index, vfta);
+	clear_bit(vid, adapter->active_vlans);
+
+	return 0;
+}
+
+static void
+ixgb_restore_vlan(struct ixgb_adapter *adapter)
+{
+	u16 vid;
+
+	for_each_set_bit(vid, adapter->active_vlans, VLAN_N_VID)
+		ixgb_vlan_rx_add_vid(adapter->netdev, htons(ETH_P_8021Q), vid);
+}
+
+/**
+ * ixgb_io_error_detected - called when PCI error is detected
+ * @pdev:    pointer to pci device with error
+ * @state:   pci channel state after error
+ *
+ * This callback is called by the PCI subsystem whenever
+ * a PCI bus error is detected.
+ */
+static pci_ers_result_t ixgb_io_error_detected(struct pci_dev *pdev,
+                                               pci_channel_state_t state)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+
+	netif_device_detach(netdev);
+
+	if (state == pci_channel_io_perm_failure)
+		return PCI_ERS_RESULT_DISCONNECT;
+
+	if (netif_running(netdev))
+		ixgb_down(adapter, true);
+
+	pci_disable_device(pdev);
+
+	/* Request a slot reset. */
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * ixgb_io_slot_reset - called after the pci bus has been reset.
+ * @pdev: pointer to pci device with error
+ *
+ * This callback is called after the PCI bus has been reset.
+ * Basically, this tries to restart the card from scratch.
+ * This is a shortened version of the device probe/discovery code,
+ * it resembles the first-half of the ixgb_probe() routine.
+ */
+static pci_ers_result_t ixgb_io_slot_reset(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+	u8 addr[ETH_ALEN];
+
+	if (pci_enable_device(pdev)) {
+		netif_err(adapter, probe, adapter->netdev,
+			  "Cannot re-enable PCI device after reset\n");
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
+	/* Perform card reset only on one instance of the card */
+	if (0 != PCI_FUNC (pdev->devfn))
+		return PCI_ERS_RESULT_RECOVERED;
+
+	pci_set_master(pdev);
+
+	netif_carrier_off(netdev);
+	netif_stop_queue(netdev);
+	ixgb_reset(adapter);
+
+	/* Make sure the EEPROM is good */
+	if (!ixgb_validate_eeprom_checksum(&adapter->hw)) {
+		netif_err(adapter, probe, adapter->netdev,
+			  "After reset, the EEPROM checksum is not valid\n");
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+	ixgb_get_ee_mac_addr(&adapter->hw, addr);
+	eth_hw_addr_set(netdev, addr);
+	memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
+
+	if (!is_valid_ether_addr(netdev->perm_addr)) {
+		netif_err(adapter, probe, adapter->netdev,
+			  "After reset, invalid MAC address\n");
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
+	return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * ixgb_io_resume - called when its OK to resume normal operations
+ * @pdev: pointer to pci device with error
+ *
+ * The error recovery driver tells us that its OK to resume
+ * normal operation. Implementation resembles the second-half
+ * of the ixgb_probe() routine.
+ */
+static void ixgb_io_resume(struct pci_dev *pdev)
+{
+	struct net_device *netdev = pci_get_drvdata(pdev);
+	struct ixgb_adapter *adapter = netdev_priv(netdev);
+
+	pci_set_master(pdev);
+
+	if (netif_running(netdev)) {
+		if (ixgb_up(adapter)) {
+			pr_err("can't bring device back up after reset\n");
+			return;
+		}
+	}
+
+	netif_device_attach(netdev);
+	mod_timer(&adapter->watchdog_timer, jiffies);
+}
+
+/* ixgb_main.c */
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_osdep.h b/drivers/net/ethernet/intel/ixgb/ixgb_osdep.h
new file mode 100644
index 000000000..7bd54efa6
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_osdep.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright(c) 1999 - 2008 Intel Corporation. */
+
+/* glue for the OS independent part of ixgb
+ * includes register access macros
+ */
+
+#ifndef _IXGB_OSDEP_H_
+#define _IXGB_OSDEP_H_
+
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/if_ether.h>
+
+#undef ASSERT
+#define ASSERT(x)	BUG_ON(!(x))
+
+#define ENTER() pr_debug("%s\n", __func__);
+
+#define IXGB_WRITE_REG(a, reg, value) ( \
+	writel((value), ((a)->hw_addr + IXGB_##reg)))
+
+#define IXGB_READ_REG(a, reg) ( \
+	readl((a)->hw_addr + IXGB_##reg))
+
+#define IXGB_WRITE_REG_ARRAY(a, reg, offset, value) ( \
+	writel((value), ((a)->hw_addr + IXGB_##reg + ((offset) << 2))))
+
+#define IXGB_READ_REG_ARRAY(a, reg, offset) ( \
+	readl((a)->hw_addr + IXGB_##reg + ((offset) << 2)))
+
+#define IXGB_WRITE_FLUSH(a) IXGB_READ_REG(a, STATUS)
+
+#define IXGB_MEMCPY memcpy
+
+#endif /* _IXGB_OSDEP_H_ */
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_param.c b/drivers/net/ethernet/intel/ixgb/ixgb_param.c
new file mode 100644
index 000000000..d40f96250
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_param.c
@@ -0,0 +1,442 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2008 Intel Corporation. */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "ixgb.h"
+
+/* This is the only thing that needs to be changed to adjust the
+ * maximum number of ports that the driver can manage.
+ */
+
+#define IXGB_MAX_NIC 8
+
+#define OPTION_UNSET	-1
+#define OPTION_DISABLED 0
+#define OPTION_ENABLED  1
+
+/* All parameters are treated the same, as an integer array of values.
+ * This macro just reduces the need to repeat the same declaration code
+ * over and over (plus this helps to avoid typo bugs).
+ */
+
+#define IXGB_PARAM_INIT { [0 ... IXGB_MAX_NIC] = OPTION_UNSET }
+#define IXGB_PARAM(X, desc)					\
+	static int X[IXGB_MAX_NIC+1]		\
+		= IXGB_PARAM_INIT;				\
+	static unsigned int num_##X = 0;			\
+	module_param_array_named(X, X, int, &num_##X, 0);	\
+	MODULE_PARM_DESC(X, desc);
+
+/* Transmit Descriptor Count
+ *
+ * Valid Range: 64-4096
+ *
+ * Default Value: 256
+ */
+
+IXGB_PARAM(TxDescriptors, "Number of transmit descriptors");
+
+/* Receive Descriptor Count
+ *
+ * Valid Range: 64-4096
+ *
+ * Default Value: 1024
+ */
+
+IXGB_PARAM(RxDescriptors, "Number of receive descriptors");
+
+/* User Specified Flow Control Override
+ *
+ * Valid Range: 0-3
+ *  - 0 - No Flow Control
+ *  - 1 - Rx only, respond to PAUSE frames but do not generate them
+ *  - 2 - Tx only, generate PAUSE frames but ignore them on receive
+ *  - 3 - Full Flow Control Support
+ *
+ * Default Value: 2 - Tx only (silicon bug avoidance)
+ */
+
+IXGB_PARAM(FlowControl, "Flow Control setting");
+
+/* XsumRX - Receive Checksum Offload Enable/Disable
+ *
+ * Valid Range: 0, 1
+ *  - 0 - disables all checksum offload
+ *  - 1 - enables receive IP/TCP/UDP checksum offload
+ *        on 82597 based NICs
+ *
+ * Default Value: 1
+ */
+
+IXGB_PARAM(XsumRX, "Disable or enable Receive Checksum offload");
+
+/* Transmit Interrupt Delay in units of 0.8192 microseconds
+ *
+ * Valid Range: 0-65535
+ *
+ * Default Value: 32
+ */
+
+IXGB_PARAM(TxIntDelay, "Transmit Interrupt Delay");
+
+/* Receive Interrupt Delay in units of 0.8192 microseconds
+ *
+ * Valid Range: 0-65535
+ *
+ * Default Value: 72
+ */
+
+IXGB_PARAM(RxIntDelay, "Receive Interrupt Delay");
+
+/* Receive Flow control high threshold (when we send a pause frame)
+ * (FCRTH)
+ *
+ * Valid Range: 1,536 - 262,136 (0x600 - 0x3FFF8, 8 byte granularity)
+ *
+ * Default Value: 196,608 (0x30000)
+ */
+
+IXGB_PARAM(RxFCHighThresh, "Receive Flow Control High Threshold");
+
+/* Receive Flow control low threshold (when we send a resume frame)
+ * (FCRTL)
+ *
+ * Valid Range: 64 - 262,136 (0x40 - 0x3FFF8, 8 byte granularity)
+ *              must be less than high threshold by at least 8 bytes
+ *
+ * Default Value:  163,840 (0x28000)
+ */
+
+IXGB_PARAM(RxFCLowThresh, "Receive Flow Control Low Threshold");
+
+/* Flow control request timeout (how long to pause the link partner's tx)
+ * (PAP 15:0)
+ *
+ * Valid Range: 1 - 65535
+ *
+ * Default Value:  65535 (0xffff) (we'll send an xon if we recover)
+ */
+
+IXGB_PARAM(FCReqTimeout, "Flow Control Request Timeout");
+
+/* Interrupt Delay Enable
+ *
+ * Valid Range: 0, 1
+ *
+ *  - 0 - disables transmit interrupt delay
+ *  - 1 - enables transmmit interrupt delay
+ *
+ * Default Value: 1
+ */
+
+IXGB_PARAM(IntDelayEnable, "Transmit Interrupt Delay Enable");
+
+
+#define DEFAULT_TIDV	   		     32
+#define MAX_TIDV			 0xFFFF
+#define MIN_TIDV			      0
+
+#define DEFAULT_RDTR		   	     72
+#define MAX_RDTR			 0xFFFF
+#define MIN_RDTR			      0
+
+#define DEFAULT_FCRTL	  		0x28000
+#define DEFAULT_FCRTH			0x30000
+#define MIN_FCRTL			      0
+#define MAX_FCRTL			0x3FFE8
+#define MIN_FCRTH			      8
+#define MAX_FCRTH			0x3FFF0
+
+#define MIN_FCPAUSE			      1
+#define MAX_FCPAUSE			 0xffff
+#define DEFAULT_FCPAUSE		  	 0xFFFF /* this may be too long */
+
+struct ixgb_option {
+	enum { enable_option, range_option, list_option } type;
+	const char *name;
+	const char *err;
+	int def;
+	union {
+		struct {	/* range_option info */
+			int min;
+			int max;
+		} r;
+		struct {	/* list_option info */
+			int nr;
+			const struct ixgb_opt_list {
+				int i;
+				const char *str;
+			} *p;
+		} l;
+	} arg;
+};
+
+static int
+ixgb_validate_option(unsigned int *value, const struct ixgb_option *opt)
+{
+	if (*value == OPTION_UNSET) {
+		*value = opt->def;
+		return 0;
+	}
+
+	switch (opt->type) {
+	case enable_option:
+		switch (*value) {
+		case OPTION_ENABLED:
+			pr_info("%s Enabled\n", opt->name);
+			return 0;
+		case OPTION_DISABLED:
+			pr_info("%s Disabled\n", opt->name);
+			return 0;
+		}
+		break;
+	case range_option:
+		if (*value >= opt->arg.r.min && *value <= opt->arg.r.max) {
+			pr_info("%s set to %i\n", opt->name, *value);
+			return 0;
+		}
+		break;
+	case list_option: {
+		int i;
+		const struct ixgb_opt_list *ent;
+
+		for (i = 0; i < opt->arg.l.nr; i++) {
+			ent = &opt->arg.l.p[i];
+			if (*value == ent->i) {
+				if (ent->str[0] != '\0')
+					pr_info("%s\n", ent->str);
+				return 0;
+			}
+		}
+	}
+		break;
+	default:
+		BUG();
+	}
+
+	pr_info("Invalid %s specified (%i) %s\n", opt->name, *value, opt->err);
+	*value = opt->def;
+	return -1;
+}
+
+/**
+ * ixgb_check_options - Range Checking for Command Line Parameters
+ * @adapter: board private structure
+ *
+ * This routine checks all command line parameters for valid user
+ * input.  If an invalid value is given, or if no user specified
+ * value exists, a default value is used.  The final value is stored
+ * in a variable in the adapter structure.
+ **/
+
+void
+ixgb_check_options(struct ixgb_adapter *adapter)
+{
+	int bd = adapter->bd_number;
+	if (bd >= IXGB_MAX_NIC) {
+		pr_notice("Warning: no configuration for board #%i\n", bd);
+		pr_notice("Using defaults for all values\n");
+	}
+
+	{ /* Transmit Descriptor Count */
+		static const struct ixgb_option opt = {
+			.type = range_option,
+			.name = "Transmit Descriptors",
+			.err  = "using default of " __MODULE_STRING(DEFAULT_TXD),
+			.def  = DEFAULT_TXD,
+			.arg  = { .r = { .min = MIN_TXD,
+					 .max = MAX_TXD}}
+		};
+		struct ixgb_desc_ring *tx_ring = &adapter->tx_ring;
+
+		if (num_TxDescriptors > bd) {
+			tx_ring->count = TxDescriptors[bd];
+			ixgb_validate_option(&tx_ring->count, &opt);
+		} else {
+			tx_ring->count = opt.def;
+		}
+		tx_ring->count = ALIGN(tx_ring->count, IXGB_REQ_TX_DESCRIPTOR_MULTIPLE);
+	}
+	{ /* Receive Descriptor Count */
+		static const struct ixgb_option opt = {
+			.type = range_option,
+			.name = "Receive Descriptors",
+			.err  = "using default of " __MODULE_STRING(DEFAULT_RXD),
+			.def  = DEFAULT_RXD,
+			.arg  = { .r = { .min = MIN_RXD,
+					 .max = MAX_RXD}}
+		};
+		struct ixgb_desc_ring *rx_ring = &adapter->rx_ring;
+
+		if (num_RxDescriptors > bd) {
+			rx_ring->count = RxDescriptors[bd];
+			ixgb_validate_option(&rx_ring->count, &opt);
+		} else {
+			rx_ring->count = opt.def;
+		}
+		rx_ring->count = ALIGN(rx_ring->count, IXGB_REQ_RX_DESCRIPTOR_MULTIPLE);
+	}
+	{ /* Receive Checksum Offload Enable */
+		static const struct ixgb_option opt = {
+			.type = enable_option,
+			.name = "Receive Checksum Offload",
+			.err  = "defaulting to Enabled",
+			.def  = OPTION_ENABLED
+		};
+
+		if (num_XsumRX > bd) {
+			unsigned int rx_csum = XsumRX[bd];
+			ixgb_validate_option(&rx_csum, &opt);
+			adapter->rx_csum = rx_csum;
+		} else {
+			adapter->rx_csum = opt.def;
+		}
+	}
+	{ /* Flow Control */
+
+		static const struct ixgb_opt_list fc_list[] = {
+		       { ixgb_fc_none, "Flow Control Disabled" },
+		       { ixgb_fc_rx_pause, "Flow Control Receive Only" },
+		       { ixgb_fc_tx_pause, "Flow Control Transmit Only" },
+		       { ixgb_fc_full, "Flow Control Enabled" },
+		       { ixgb_fc_default, "Flow Control Hardware Default" }
+		};
+
+		static const struct ixgb_option opt = {
+			.type = list_option,
+			.name = "Flow Control",
+			.err  = "reading default settings from EEPROM",
+			.def  = ixgb_fc_tx_pause,
+			.arg  = { .l = { .nr = ARRAY_SIZE(fc_list),
+					 .p = fc_list }}
+		};
+
+		if (num_FlowControl > bd) {
+			unsigned int fc = FlowControl[bd];
+			ixgb_validate_option(&fc, &opt);
+			adapter->hw.fc.type = fc;
+		} else {
+			adapter->hw.fc.type = opt.def;
+		}
+	}
+	{ /* Receive Flow Control High Threshold */
+		static const struct ixgb_option opt = {
+			.type = range_option,
+			.name = "Rx Flow Control High Threshold",
+			.err  = "using default of " __MODULE_STRING(DEFAULT_FCRTH),
+			.def  = DEFAULT_FCRTH,
+			.arg  = { .r = { .min = MIN_FCRTH,
+					 .max = MAX_FCRTH}}
+		};
+
+		if (num_RxFCHighThresh > bd) {
+			adapter->hw.fc.high_water = RxFCHighThresh[bd];
+			ixgb_validate_option(&adapter->hw.fc.high_water, &opt);
+		} else {
+			adapter->hw.fc.high_water = opt.def;
+		}
+		if (!(adapter->hw.fc.type & ixgb_fc_tx_pause) )
+			pr_info("Ignoring RxFCHighThresh when no RxFC\n");
+	}
+	{ /* Receive Flow Control Low Threshold */
+		static const struct ixgb_option opt = {
+			.type = range_option,
+			.name = "Rx Flow Control Low Threshold",
+			.err  = "using default of " __MODULE_STRING(DEFAULT_FCRTL),
+			.def  = DEFAULT_FCRTL,
+			.arg  = { .r = { .min = MIN_FCRTL,
+					 .max = MAX_FCRTL}}
+		};
+
+		if (num_RxFCLowThresh > bd) {
+			adapter->hw.fc.low_water = RxFCLowThresh[bd];
+			ixgb_validate_option(&adapter->hw.fc.low_water, &opt);
+		} else {
+			adapter->hw.fc.low_water = opt.def;
+		}
+		if (!(adapter->hw.fc.type & ixgb_fc_tx_pause) )
+			pr_info("Ignoring RxFCLowThresh when no RxFC\n");
+	}
+	{ /* Flow Control Pause Time Request*/
+		static const struct ixgb_option opt = {
+			.type = range_option,
+			.name = "Flow Control Pause Time Request",
+			.err  = "using default of "__MODULE_STRING(DEFAULT_FCPAUSE),
+			.def  = DEFAULT_FCPAUSE,
+			.arg = { .r = { .min = MIN_FCPAUSE,
+					.max = MAX_FCPAUSE}}
+		};
+
+		if (num_FCReqTimeout > bd) {
+			unsigned int pause_time = FCReqTimeout[bd];
+			ixgb_validate_option(&pause_time, &opt);
+			adapter->hw.fc.pause_time = pause_time;
+		} else {
+			adapter->hw.fc.pause_time = opt.def;
+		}
+		if (!(adapter->hw.fc.type & ixgb_fc_tx_pause) )
+			pr_info("Ignoring FCReqTimeout when no RxFC\n");
+	}
+	/* high low and spacing check for rx flow control thresholds */
+	if (adapter->hw.fc.type & ixgb_fc_tx_pause) {
+		/* high must be greater than low */
+		if (adapter->hw.fc.high_water < (adapter->hw.fc.low_water + 8)) {
+			/* set defaults */
+			pr_info("RxFCHighThresh must be >= (RxFCLowThresh + 8), Using Defaults\n");
+			adapter->hw.fc.high_water = DEFAULT_FCRTH;
+			adapter->hw.fc.low_water  = DEFAULT_FCRTL;
+		}
+	}
+	{ /* Receive Interrupt Delay */
+		static const struct ixgb_option opt = {
+			.type = range_option,
+			.name = "Receive Interrupt Delay",
+			.err  = "using default of " __MODULE_STRING(DEFAULT_RDTR),
+			.def  = DEFAULT_RDTR,
+			.arg  = { .r = { .min = MIN_RDTR,
+					 .max = MAX_RDTR}}
+		};
+
+		if (num_RxIntDelay > bd) {
+			adapter->rx_int_delay = RxIntDelay[bd];
+			ixgb_validate_option(&adapter->rx_int_delay, &opt);
+		} else {
+			adapter->rx_int_delay = opt.def;
+		}
+	}
+	{ /* Transmit Interrupt Delay */
+		static const struct ixgb_option opt = {
+			.type = range_option,
+			.name = "Transmit Interrupt Delay",
+			.err  = "using default of " __MODULE_STRING(DEFAULT_TIDV),
+			.def  = DEFAULT_TIDV,
+			.arg  = { .r = { .min = MIN_TIDV,
+					 .max = MAX_TIDV}}
+		};
+
+		if (num_TxIntDelay > bd) {
+			adapter->tx_int_delay = TxIntDelay[bd];
+			ixgb_validate_option(&adapter->tx_int_delay, &opt);
+		} else {
+			adapter->tx_int_delay = opt.def;
+		}
+	}
+
+	{ /* Transmit Interrupt Delay Enable */
+		static const struct ixgb_option opt = {
+			.type = enable_option,
+			.name = "Tx Interrupt Delay Enable",
+			.err  = "defaulting to Enabled",
+			.def  = OPTION_ENABLED
+		};
+
+		if (num_IntDelayEnable > bd) {
+			unsigned int ide = IntDelayEnable[bd];
+			ixgb_validate_option(&ide, &opt);
+			adapter->tx_int_delay_enable = ide;
+		} else {
+			adapter->tx_int_delay_enable = opt.def;
+		}
+	}
+}