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/*******************************************************************************

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  Intel PRO/1000 Linux driver

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  Copyright(c) 1999 - 2009 Intel Corporation.

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  This program is free software; you can redistribute it and/or modify it

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  under the terms and conditions of the GNU General Public License,

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  version 2, as published by the Free Software Foundation.

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  This program is distributed in the hope it will be useful, but WITHOUT

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  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

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  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

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  more details.

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  You should have received a copy of the GNU General Public License along with

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  this program; if not, write to the Free Software Foundation, Inc.,

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  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

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  The full GNU General Public License is included in this distribution in

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  the file called "COPYING".

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    22

  Contact Information:

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  Linux NICS <linux.nics@intel.com>

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  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>

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  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

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*******************************************************************************/

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/* Linux PRO/1000 Ethernet Driver main header file */

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#ifndef _E1000_H_

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#define _E1000_H_

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#include <linux/types.h>

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#include <linux/timer.h>

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#include <linux/workqueue.h>

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#include <linux/io.h>

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#include <linux/netdevice.h>

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#include <linux/pci.h>

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#include <linux/pci-aspm.h>

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#include "hw.h"

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struct e1000_info;

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    46

#define e_printk(level, adapter, format, arg...) \

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	printk(level "%s: %s: " format, pci_name(adapter->pdev), \

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	       adapter->netdev->name, ## arg)

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#ifdef DEBUG

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#define e_dbg(format, arg...) \

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	e_printk(KERN_DEBUG , hw->adapter, format, ## arg)

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#else

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#define e_dbg(format, arg...) do { (void)(hw); } while (0)

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#endif

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#define e_err(format, arg...) \

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	e_printk(KERN_ERR, adapter, format, ## arg)

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#define e_info(format, arg...) \

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	e_printk(KERN_INFO, adapter, format, ## arg)

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#define e_warn(format, arg...) \

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	e_printk(KERN_WARNING, adapter, format, ## arg)

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#define e_notice(format, arg...) \

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	e_printk(KERN_NOTICE, adapter, format, ## arg)

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    66

    67

/* Interrupt modes, as used by the IntMode parameter */

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#define E1000E_INT_MODE_LEGACY		0

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#define E1000E_INT_MODE_MSI		1

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#define E1000E_INT_MODE_MSIX		2

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    72

/* Tx/Rx descriptor defines */

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#define E1000_DEFAULT_TXD		256

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#define E1000_MAX_TXD			4096

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#define E1000_MIN_TXD			64

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    77

#define E1000_DEFAULT_RXD		256

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#define E1000_MAX_RXD			4096

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#define E1000_MIN_RXD			64

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#define E1000_MIN_ITR_USECS		10 /* 100000 irq/sec */

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#define E1000_MAX_ITR_USECS		10000 /* 100    irq/sec */

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    84

/* Early Receive defines */

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#define E1000_ERT_2048			0x100

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    87

#define E1000_FC_PAUSE_TIME		0x0680 /* 858 usec */

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/* How many Tx Descriptors do we need to call netif_wake_queue ? */

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/* How many Rx Buffers do we bundle into one write to the hardware ? */

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#define E1000_RX_BUFFER_WRITE		16 /* Must be power of 2 */

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    93

#define AUTO_ALL_MODES			0

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#define E1000_EEPROM_APME		0x0400

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    96

#define E1000_MNG_VLAN_NONE		(-1)

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    98

/* Number of packet split data buffers (not including the header buffer) */

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#define PS_PAGE_BUFFERS			(MAX_PS_BUFFERS - 1)

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   101

#define DEFAULT_JUMBO			9234

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   103

/* BM/HV Specific Registers */

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#define BM_PORT_CTRL_PAGE                 769

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#define PHY_UPPER_SHIFT                   21

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#define BM_PHY_REG(page, reg) \

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	(((reg) & MAX_PHY_REG_ADDRESS) |\

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	 (((page) & 0xFFFF) << PHY_PAGE_SHIFT) |\

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	 (((reg) & ~MAX_PHY_REG_ADDRESS) << (PHY_UPPER_SHIFT - PHY_PAGE_SHIFT)))

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   112

/* PHY Wakeup Registers and defines */

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#define BM_RCTL         PHY_REG(BM_WUC_PAGE, 0)

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#define BM_WUC          PHY_REG(BM_WUC_PAGE, 1)

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#define BM_WUFC         PHY_REG(BM_WUC_PAGE, 2)

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#define BM_WUS          PHY_REG(BM_WUC_PAGE, 3)

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#define BM_RAR_L(_i)    (BM_PHY_REG(BM_WUC_PAGE, 16 + ((_i) << 2)))

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#define BM_RAR_M(_i)    (BM_PHY_REG(BM_WUC_PAGE, 17 + ((_i) << 2)))

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#define BM_RAR_H(_i)    (BM_PHY_REG(BM_WUC_PAGE, 18 + ((_i) << 2)))

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#define BM_RAR_CTRL(_i) (BM_PHY_REG(BM_WUC_PAGE, 19 + ((_i) << 2)))

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#define BM_MTA(_i)      (BM_PHY_REG(BM_WUC_PAGE, 128 + ((_i) << 1)))

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#define BM_RCTL_UPE           0x0001          /* Unicast Promiscuous Mode */

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#define BM_RCTL_MPE           0x0002          /* Multicast Promiscuous Mode */

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#define BM_RCTL_MO_SHIFT      3               /* Multicast Offset Shift */

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#define BM_RCTL_MO_MASK       (3 << 3)        /* Multicast Offset Mask */

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#define BM_RCTL_BAM           0x0020          /* Broadcast Accept Mode */

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#define BM_RCTL_PMCF          0x0040          /* Pass MAC Control Frames */

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#define BM_RCTL_RFCE          0x0080          /* Rx Flow Control Enable */

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#define HV_SCC_UPPER		PHY_REG(778, 16) /* Single Collision Count */

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#define HV_SCC_LOWER		PHY_REG(778, 17)

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#define HV_ECOL_UPPER		PHY_REG(778, 18) /* Excessive Collision Count */

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#define HV_ECOL_LOWER		PHY_REG(778, 19)

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#define HV_MCC_UPPER		PHY_REG(778, 20) /* Multiple Collision Count */

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#define HV_MCC_LOWER		PHY_REG(778, 21)

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#define HV_LATECOL_UPPER	PHY_REG(778, 23) /* Late Collision Count */

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#define HV_LATECOL_LOWER	PHY_REG(778, 24)

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#define HV_COLC_UPPER		PHY_REG(778, 25) /* Collision Count */

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#define HV_COLC_LOWER		PHY_REG(778, 26)

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#define HV_DC_UPPER		PHY_REG(778, 27) /* Defer Count */

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#define HV_DC_LOWER		PHY_REG(778, 28)

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#define HV_TNCRS_UPPER		PHY_REG(778, 29) /* Transmit with no CRS */

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#define HV_TNCRS_LOWER		PHY_REG(778, 30)

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   146

#define E1000_FCRTV_PCH     0x05F40 /* PCH Flow Control Refresh Timer Value */

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   148

/* BM PHY Copper Specific Status */

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#define BM_CS_STATUS                      17

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#define BM_CS_STATUS_LINK_UP              0x0400

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#define BM_CS_STATUS_RESOLVED             0x0800

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#define BM_CS_STATUS_SPEED_MASK           0xC000

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#define BM_CS_STATUS_SPEED_1000           0x8000

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/* 82577 Mobile Phy Status Register */

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#define HV_M_STATUS                       26

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#define HV_M_STATUS_AUTONEG_COMPLETE      0x1000

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#define HV_M_STATUS_SPEED_MASK            0x0300

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#define HV_M_STATUS_SPEED_1000            0x0200

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#define HV_M_STATUS_LINK_UP               0x0040

   161

   162

enum e1000_boards {

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	board_82571,

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	board_82572,

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	board_82573,

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	board_82574,

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	board_82583,

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	board_80003es2lan,

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	board_ich8lan,

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	board_ich9lan,

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	board_ich10lan,

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	board_pchlan,

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};

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   175

struct e1000_queue_stats {

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	u64 packets;

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	u64 bytes;

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};

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struct e1000_ps_page {

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	struct page *page;

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	u64 dma; /* must be u64 - written to hw */

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};

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/*

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 * wrappers around a pointer to a socket buffer,

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 * so a DMA handle can be stored along with the buffer

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 */

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struct e1000_buffer {

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	dma_addr_t dma;

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	struct sk_buff *skb;

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	union {

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		/* Tx */

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		struct {

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			unsigned long time_stamp;

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			u16 length;

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			u16 next_to_watch;

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			u16 mapped_as_page;

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		};

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		/* Rx */

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		struct {

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			/* arrays of page information for packet split */

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			struct e1000_ps_page *ps_pages;

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			struct page *page;

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		};

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	};

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};

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struct e1000_ring {

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	void *desc;			/* pointer to ring memory  */

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	dma_addr_t dma;			/* phys address of ring    */

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	unsigned int size;		/* length of ring in bytes */

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	unsigned int count;		/* number of desc. in ring */

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	u16 next_to_use;

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	u16 next_to_clean;

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	u16 head;

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	u16 tail;

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	/* array of buffer information structs */

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	struct e1000_buffer *buffer_info;

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	char name[IFNAMSIZ + 5];

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	u32 ims_val;

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	u32 itr_val;

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	u16 itr_register;

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	int set_itr;

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	struct sk_buff *rx_skb_top;

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   232

	struct e1000_queue_stats stats;

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};

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   235

/* PHY register snapshot values */

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struct e1000_phy_regs {

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	u16 bmcr;		/* basic mode control register    */

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	u16 bmsr;		/* basic mode status register     */

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	u16 advertise;		/* auto-negotiation advertisement */

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	u16 lpa;		/* link partner ability register  */

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	u16 expansion;		/* auto-negotiation expansion reg */

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	u16 ctrl1000;		/* 1000BASE-T control register    */

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	u16 stat1000;		/* 1000BASE-T status register     */

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	u16 estatus;		/* extended status register       */

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};

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/* board specific private data structure */

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struct e1000_adapter {

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	struct timer_list watchdog_timer;

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	struct timer_list phy_info_timer;

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	struct timer_list blink_timer;

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	struct work_struct reset_task;

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	struct work_struct watchdog_task;

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	const struct e1000_info *ei;

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   258

	struct vlan_group *vlgrp;

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	u32 bd_number;

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	u32 rx_buffer_len;

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	u16 mng_vlan_id;

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	u16 link_speed;

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	u16 link_duplex;

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	u16 eeprom_vers;

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	/* track device up/down/testing state */

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	unsigned long state;

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	/* Interrupt Throttle Rate */

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	u32 itr;

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	u32 itr_setting;

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	u16 tx_itr;

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	u16 rx_itr;

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	/*

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	 * Tx

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	 */

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	struct e1000_ring *tx_ring /* One per active queue */

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						____cacheline_aligned_in_smp;

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	struct napi_struct napi;

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	unsigned int restart_queue;

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	u32 txd_cmd;

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	bool detect_tx_hung;

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	u8 tx_timeout_factor;

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	u32 tx_int_delay;

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	u32 tx_abs_int_delay;

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	unsigned int total_tx_bytes;

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	unsigned int total_tx_packets;

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	unsigned int total_rx_bytes;

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	unsigned int total_rx_packets;

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	/* Tx stats */

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	u64 tpt_old;

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	u64 colc_old;

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	u32 gotc;

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	u64 gotc_old;

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	u32 tx_timeout_count;

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	u32 tx_fifo_head;

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	u32 tx_head_addr;

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	u32 tx_fifo_size;

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	u32 tx_dma_failed;

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	/*

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	 * Rx

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	 */

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	bool (*clean_rx) (struct e1000_adapter *adapter,

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			  int *work_done, int work_to_do)

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						____cacheline_aligned_in_smp;

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	void (*alloc_rx_buf) (struct e1000_adapter *adapter,

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			      int cleaned_count);

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	struct e1000_ring *rx_ring;

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	u32 rx_int_delay;

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	u32 rx_abs_int_delay;

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   321

	/* Rx stats */

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	u64 hw_csum_err;

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	u64 hw_csum_good;

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	u64 rx_hdr_split;

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	u32 gorc;

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	u64 gorc_old;

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	u32 alloc_rx_buff_failed;

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	u32 rx_dma_failed;

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	unsigned int rx_ps_pages;

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	u16 rx_ps_bsize0;

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	u32 max_frame_size;

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	u32 min_frame_size;

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	/* OS defined structs */

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	struct net_device *netdev;

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	struct pci_dev *pdev;

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	/* structs defined in e1000_hw.h */

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	struct e1000_hw hw;

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	struct e1000_hw_stats stats;

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	struct e1000_phy_info phy_info;

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	struct e1000_phy_stats phy_stats;

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   346

	/* Snapshot of PHY registers */

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	struct e1000_phy_regs phy_regs;

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	struct e1000_ring test_tx_ring;

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	struct e1000_ring test_rx_ring;

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	u32 test_icr;

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	u32 msg_enable;

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	struct msix_entry *msix_entries;

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	int int_mode;

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	u32 eiac_mask;

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	u32 eeprom_wol;

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	u32 wol;

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	u32 pba;

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	u32 max_hw_frame_size;

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	bool fc_autoneg;

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	unsigned long led_status;

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	unsigned int flags;

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	unsigned int flags2;

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	struct work_struct downshift_task;

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	struct work_struct update_phy_task;

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	struct work_struct led_blink_task;

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	struct work_struct print_hang_task;

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};

   374

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struct e1000_info {

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	enum e1000_mac_type	mac;

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	unsigned int		flags;

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	unsigned int		flags2;

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	u32			pba;

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	u32			max_hw_frame_size;

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	s32			(*get_variants)(struct e1000_adapter *);

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	struct e1000_mac_operations *mac_ops;

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	struct e1000_phy_operations *phy_ops;

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	struct e1000_nvm_operations *nvm_ops;

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};

   386

   387

/* hardware capability, feature, and workaround flags */

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#define FLAG_HAS_AMT                      (1 << 0)

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#define FLAG_HAS_FLASH                    (1 << 1)

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#define FLAG_HAS_HW_VLAN_FILTER           (1 << 2)

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#define FLAG_HAS_WOL                      (1 << 3)

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#define FLAG_HAS_ERT                      (1 << 4)

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#define FLAG_HAS_CTRLEXT_ON_LOAD          (1 << 5)

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#define FLAG_HAS_SWSM_ON_LOAD             (1 << 6)

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#define FLAG_HAS_JUMBO_FRAMES             (1 << 7)

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#define FLAG_READ_ONLY_NVM                (1 << 8)

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#define FLAG_IS_ICH                       (1 << 9)

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#define FLAG_HAS_MSIX                     (1 << 10)

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#define FLAG_HAS_SMART_POWER_DOWN         (1 << 11)

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#define FLAG_IS_QUAD_PORT_A               (1 << 12)

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#define FLAG_IS_QUAD_PORT                 (1 << 13)

   402

#define FLAG_TIPG_MEDIUM_FOR_80003ESLAN   (1 << 14)

   403

#define FLAG_APME_IN_WUC                  (1 << 15)

   404

#define FLAG_APME_IN_CTRL3                (1 << 16)

   405

#define FLAG_APME_CHECK_PORT_B            (1 << 17)

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#define FLAG_DISABLE_FC_PAUSE_TIME        (1 << 18)

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#define FLAG_NO_WAKE_UCAST                (1 << 19)

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#define FLAG_MNG_PT_ENABLED               (1 << 20)

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#define FLAG_RESET_OVERWRITES_LAA         (1 << 21)

   410

#define FLAG_TARC_SPEED_MODE_BIT          (1 << 22)

   411

#define FLAG_TARC_SET_BIT_ZERO            (1 << 23)

   412

#define FLAG_RX_NEEDS_RESTART             (1 << 24)

   413

#define FLAG_LSC_GIG_SPEED_DROP           (1 << 25)

   414

#define FLAG_SMART_POWER_DOWN             (1 << 26)

   415

#define FLAG_MSI_ENABLED                  (1 << 27)

   416

#define FLAG_RX_CSUM_ENABLED              (1 << 28)

   417

#define FLAG_TSO_FORCE                    (1 << 29)

   418

#define FLAG_RX_RESTART_NOW               (1 << 30)

   419

#define FLAG_MSI_TEST_FAILED              (1 << 31)

   420

   421

/* CRC Stripping defines */

   422

#define FLAG2_CRC_STRIPPING               (1 << 0)

   423

#define FLAG2_HAS_PHY_WAKEUP              (1 << 1)

   424

#define FLAG2_IS_DISCARDING               (1 << 2)

   425

#define FLAG2_DISABLE_ASPM_L1             (1 << 3)

   426

   427

#define E1000_RX_DESC_PS(R, i)	    \

   428

	(&(((union e1000_rx_desc_packet_split *)((R).desc))[i]))

   429

#define E1000_GET_DESC(R, i, type)	(&(((struct type *)((R).desc))[i]))

   430

#define E1000_RX_DESC(R, i)		E1000_GET_DESC(R, i, e1000_rx_desc)

   431

#define E1000_TX_DESC(R, i)		E1000_GET_DESC(R, i, e1000_tx_desc)

   432

#define E1000_CONTEXT_DESC(R, i)	E1000_GET_DESC(R, i, e1000_context_desc)

   433

   434

enum e1000_state_t {

   435

	__E1000_TESTING,

   436

	__E1000_RESETTING,

   437

	__E1000_DOWN

   438

};

   439

   440

enum latency_range {

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	lowest_latency = 0,

   442

	low_latency = 1,

   443

	bulk_latency = 2,

   444

	latency_invalid = 255

   445

};

   446

   447

extern char e1000e_driver_name[];

   448

extern const char e1000e_driver_version[];

   449

   450

extern void e1000e_check_options(struct e1000_adapter *adapter);

   451

extern void e1000e_set_ethtool_ops(struct net_device *netdev);

   452

   453

extern int e1000e_up(struct e1000_adapter *adapter);

   454

extern void e1000e_down(struct e1000_adapter *adapter);

   455

extern void e1000e_reinit_locked(struct e1000_adapter *adapter);

   456

extern void e1000e_reset(struct e1000_adapter *adapter);

   457

extern void e1000e_power_up_phy(struct e1000_adapter *adapter);

   458

extern int e1000e_setup_rx_resources(struct e1000_adapter *adapter);

   459

extern int e1000e_setup_tx_resources(struct e1000_adapter *adapter);

   460

extern void e1000e_free_rx_resources(struct e1000_adapter *adapter);

   461

extern void e1000e_free_tx_resources(struct e1000_adapter *adapter);

   462

extern void e1000e_update_stats(struct e1000_adapter *adapter);

   463

extern bool e1000e_has_link(struct e1000_adapter *adapter);

   464

extern void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);

   465

extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);

   466

extern void e1000e_disable_aspm(struct pci_dev *pdev, u16 state);

   467

   468

extern unsigned int copybreak;

   469

   470

extern char *e1000e_get_hw_dev_name(struct e1000_hw *hw);

   471

   472

extern struct e1000_info e1000_82571_info;

   473

extern struct e1000_info e1000_82572_info;

   474

extern struct e1000_info e1000_82573_info;

   475

extern struct e1000_info e1000_82574_info;

   476

extern struct e1000_info e1000_82583_info;

   477

extern struct e1000_info e1000_ich8_info;

   478

extern struct e1000_info e1000_ich9_info;

   479

extern struct e1000_info e1000_ich10_info;

   480

extern struct e1000_info e1000_pch_info;

   481

extern struct e1000_info e1000_es2_info;

   482

   483

extern s32 e1000e_read_pba_num(struct e1000_hw *hw, u32 *pba_num);

   484

   485

extern s32  e1000e_commit_phy(struct e1000_hw *hw);

   486

   487

extern bool e1000e_enable_mng_pass_thru(struct e1000_hw *hw);

   488

   489

extern bool e1000e_get_laa_state_82571(struct e1000_hw *hw);

   490

extern void e1000e_set_laa_state_82571(struct e1000_hw *hw, bool state);

   491

   492

extern void e1000e_write_protect_nvm_ich8lan(struct e1000_hw *hw);

   493

extern void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,

   494

						 bool state);

   495

extern void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw);

   496

extern void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw);

   497

extern void e1000e_disable_gig_wol_ich8lan(struct e1000_hw *hw);

   498

extern s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable);

   499

   500

extern s32 e1000e_check_for_copper_link(struct e1000_hw *hw);

   501

extern s32 e1000e_check_for_fiber_link(struct e1000_hw *hw);

   502

extern s32 e1000e_check_for_serdes_link(struct e1000_hw *hw);

   503

extern s32 e1000e_setup_led_generic(struct e1000_hw *hw);

   504

extern s32 e1000e_cleanup_led_generic(struct e1000_hw *hw);

   505

extern s32 e1000e_led_on_generic(struct e1000_hw *hw);

   506

extern s32 e1000e_led_off_generic(struct e1000_hw *hw);

   507

extern s32 e1000e_get_bus_info_pcie(struct e1000_hw *hw);

   508

extern void e1000_set_lan_id_multi_port_pcie(struct e1000_hw *hw);

   509

extern void e1000_set_lan_id_single_port(struct e1000_hw *hw);

   510

extern s32 e1000e_get_speed_and_duplex_copper(struct e1000_hw *hw, u16 *speed, u16 *duplex);

   511

extern s32 e1000e_get_speed_and_duplex_fiber_serdes(struct e1000_hw *hw, u16 *speed, u16 *duplex);

   512

extern s32 e1000e_disable_pcie_master(struct e1000_hw *hw);

   513

extern s32 e1000e_get_auto_rd_done(struct e1000_hw *hw);

   514

extern s32 e1000e_id_led_init(struct e1000_hw *hw);

   515

extern void e1000e_clear_hw_cntrs_base(struct e1000_hw *hw);

   516

extern s32 e1000e_setup_fiber_serdes_link(struct e1000_hw *hw);

   517

extern s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw);

   518

extern s32 e1000e_copper_link_setup_igp(struct e1000_hw *hw);

   519

extern s32 e1000e_setup_link(struct e1000_hw *hw);

   520

extern void e1000_clear_vfta_generic(struct e1000_hw *hw);

   521

extern void e1000e_init_rx_addrs(struct e1000_hw *hw, u16 rar_count);

   522

extern void e1000e_update_mc_addr_list_generic(struct e1000_hw *hw,

   523

					       u8 *mc_addr_list,

   524

					       u32 mc_addr_count);

   525

extern void e1000e_rar_set(struct e1000_hw *hw, u8 *addr, u32 index);

   526

extern s32 e1000e_set_fc_watermarks(struct e1000_hw *hw);

   527

extern void e1000e_set_pcie_no_snoop(struct e1000_hw *hw, u32 no_snoop);

   528

extern s32 e1000e_get_hw_semaphore(struct e1000_hw *hw);

   529

extern s32 e1000e_valid_led_default(struct e1000_hw *hw, u16 *data);

   530