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

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  Intel PRO/1000 Linux driver

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  Copyright(c) 1999 - 2012 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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  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/bitops.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 <linux/crc32.h>

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#include <linux/if_vlan.h>

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#include "hw.h"

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    47

struct e1000_info;

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    49

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

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	netdev_dbg(hw->adapter->netdev, format, ## arg)

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

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	netdev_err(adapter->netdev, format, ## arg)

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

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	netdev_info(adapter->netdev, format, ## arg)

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

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	netdev_warn(adapter->netdev, format, ## arg)

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

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	netdev_notice(adapter->netdev, format, ## arg)

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    60

    61

/* 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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    66

/* 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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    71

#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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    75

#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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    78

/* Early Receive defines */

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#define E1000_ERT_2048			0x100

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#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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#define AUTO_ALL_MODES			0

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#define E1000_EEPROM_APME		0x0400

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    90

#define E1000_MNG_VLAN_NONE		(-1)

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    92

/* 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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    95

#define DEFAULT_JUMBO			9234

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    97

/* BM/HV Specific Registers */

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#define BM_PORT_CTRL_PAGE                 769

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   100

#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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   106

/* PHY Wakeup Registers and defines */

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#define BM_PORT_GEN_CFG PHY_REG(BM_PORT_CTRL_PAGE, 17)

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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_STATS_PAGE	778

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

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#define HV_SCC_LOWER	PHY_REG(HV_STATS_PAGE, 17)

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#define HV_ECOL_UPPER	PHY_REG(HV_STATS_PAGE, 18) /* Excessive Coll. Count */

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#define HV_ECOL_LOWER	PHY_REG(HV_STATS_PAGE, 19)

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#define HV_MCC_UPPER	PHY_REG(HV_STATS_PAGE, 20) /* Multiple Coll. Count */

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#define HV_MCC_LOWER	PHY_REG(HV_STATS_PAGE, 21)

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

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#define HV_LATECOL_LOWER PHY_REG(HV_STATS_PAGE, 24)

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

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#define HV_COLC_LOWER	PHY_REG(HV_STATS_PAGE, 26)

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

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#define HV_DC_LOWER	PHY_REG(HV_STATS_PAGE, 28)

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

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#define HV_TNCRS_LOWER	PHY_REG(HV_STATS_PAGE, 30)

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

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   144

/* 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

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   158

#define E1000_ICH_FWSM_PCIM2PCI		0x01000000 /* ME PCIm-to-PCI active */

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#define E1000_ICH_FWSM_PCIM2PCI_COUNT	2000

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   161

/* Time to wait before putting the device into D3 if there's no link (in ms). */

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#define LINK_TIMEOUT		100

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   164

/*

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 * Count for polling __E1000_RESET condition every 10-20msec.

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 * Experimentation has shown the reset can take approximately 210msec.

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 */

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#define E1000_CHECK_RESET_COUNT		25

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#define DEFAULT_RDTR			0

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#define DEFAULT_RADV			8

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#define BURST_RDTR			0x20

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#define BURST_RADV			0x20

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/*

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 * in the case of WTHRESH, it appears at least the 82571/2 hardware

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 * writes back 4 descriptors when WTHRESH=5, and 3 descriptors when

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 * WTHRESH=4, so a setting of 5 gives the most efficient bus

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 * utilization but to avoid possible Tx stalls, set it to 1

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 */

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#define E1000_TXDCTL_DMA_BURST_ENABLE                          \

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	(E1000_TXDCTL_GRAN | /* set descriptor granularity */  \

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	 E1000_TXDCTL_COUNT_DESC |                             \

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	 (1 << 16) | /* wthresh must be +1 more than desired */\

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	 (1 << 8)  | /* hthresh */                             \

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	 0x1f)       /* pthresh */

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#define E1000_RXDCTL_DMA_BURST_ENABLE                          \

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	(0x01000000 | /* set descriptor granularity */         \

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	 (4 << 16)  | /* set writeback threshold    */         \

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	 (4 << 8)   | /* set prefetch threshold     */         \

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	 0x20)        /* set hthresh                */

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#define E1000_TIDV_FPD (1 << 31)

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#define E1000_RDTR_FPD (1 << 31)

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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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	board_pch2lan,

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	board_pch_lpt,

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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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			unsigned int segs;

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			unsigned int bytecount;

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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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	struct e1000_adapter *adapter;	/* back pointer to adapter */

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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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	void __iomem *head;

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	void __iomem *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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	void __iomem *itr_register;

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	int set_itr;

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	struct sk_buff *rx_skb_top;

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};

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/* 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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	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];

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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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	u32 tx_fifo_limit;

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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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	bool tx_hang_recheck;

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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_ring *ring, int *work_done,

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			  int work_to_do) ____cacheline_aligned_in_smp;

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	void (*alloc_rx_buf) (struct e1000_ring *ring, int cleaned_count,

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			      gfp_t gfp);

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	struct e1000_ring *rx_ring;

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   352

	u32 rx_int_delay;

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	u32 rx_abs_int_delay;

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	/* 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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   369

	/* OS defined structs */

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	struct net_device *netdev;

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	struct pci_dev *pdev;

   372

   373

	/* structs defined in e1000_hw.h */

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	struct e1000_hw hw;

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   376

	spinlock_t stats64_lock;

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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;

   380

   381

	/* Snapshot of PHY registers */

   382

	struct e1000_phy_regs phy_regs;

   383

   384

	struct e1000_ring test_tx_ring;

   385

	struct e1000_ring test_rx_ring;

   386

	u32 test_icr;

   387

   388

	u32 msg_enable;

   389

	unsigned int num_vectors;

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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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   394

	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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   399

	bool fc_autoneg;

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   401

	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 print_hang_task;

   406

   407

	bool idle_check;

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	int phy_hang_count;

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   410

	u16 tx_ring_count;

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	u16 rx_ring_count;

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};

   413

   414

struct e1000_info {

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	enum e1000_mac_type	mac;

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	unsigned int		flags;

   417

	unsigned int		flags2;

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	u32			pba;

   419

	u32			max_hw_frame_size;

   420

	s32			(*get_variants)(struct e1000_adapter *);

   421

	const struct e1000_mac_operations *mac_ops;

   422

	const struct e1000_phy_operations *phy_ops;

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	const struct e1000_nvm_operations *nvm_ops;

   424

};

   425

   426

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

   427

#define FLAG_HAS_AMT                      (1 << 0)

   428

#define FLAG_HAS_FLASH                    (1 << 1)

   429

#define FLAG_HAS_HW_VLAN_FILTER           (1 << 2)

   430

#define FLAG_HAS_WOL                      (1 << 3)

   431

/* reserved bit4 */

   432

#define FLAG_HAS_CTRLEXT_ON_LOAD          (1 << 5)

   433

#define FLAG_HAS_SWSM_ON_LOAD             (1 << 6)

   434

#define FLAG_HAS_JUMBO_FRAMES             (1 << 7)

   435

#define FLAG_READ_ONLY_NVM                (1 << 8)

   436

#define FLAG_IS_ICH                       (1 << 9)

   437

#define FLAG_HAS_MSIX                     (1 << 10)

   438

#define FLAG_HAS_SMART_POWER_DOWN         (1 << 11)

   439

#define FLAG_IS_QUAD_PORT_A               (1 << 12)

   440

#define FLAG_IS_QUAD_PORT                 (1 << 13)

   441

/* reserved bit14 */

   442

#define FLAG_APME_IN_WUC                  (1 << 15)

   443

#define FLAG_APME_IN_CTRL3                (1 << 16)

   444

#define FLAG_APME_CHECK_PORT_B            (1 << 17)

   445

#define FLAG_DISABLE_FC_PAUSE_TIME        (1 << 18)

   446

#define FLAG_NO_WAKE_UCAST                (1 << 19)

   447

#define FLAG_MNG_PT_ENABLED               (1 << 20)

   448

#define FLAG_RESET_OVERWRITES_LAA         (1 << 21)

   449

#define FLAG_TARC_SPEED_MODE_BIT          (1 << 22)

   450

#define FLAG_TARC_SET_BIT_ZERO            (1 << 23)

   451

#define FLAG_RX_NEEDS_RESTART             (1 << 24)

   452

#define FLAG_LSC_GIG_SPEED_DROP           (1 << 25)

   453

#define FLAG_SMART_POWER_DOWN             (1 << 26)

   454

#define FLAG_MSI_ENABLED                  (1 << 27)

   455

/* reserved (1 << 28) */

   456

#define FLAG_TSO_FORCE                    (1 << 29)

   457

#define FLAG_RX_RESTART_NOW               (1 << 30)

   458

#define FLAG_MSI_TEST_FAILED              (1 << 31)

   459

   460

#define FLAG2_CRC_STRIPPING               (1 << 0)

   461

#define FLAG2_HAS_PHY_WAKEUP              (1 << 1)

   462

#define FLAG2_IS_DISCARDING               (1 << 2)

   463

#define FLAG2_DISABLE_ASPM_L1             (1 << 3)

   464

#define FLAG2_HAS_PHY_STATS               (1 << 4)

   465

#define FLAG2_HAS_EEE                     (1 << 5)

   466

#define FLAG2_DMA_BURST                   (1 << 6)

   467

#define FLAG2_DISABLE_ASPM_L0S            (1 << 7)

   468

#define FLAG2_DISABLE_AIM                 (1 << 8)

   469

#define FLAG2_CHECK_PHY_HANG              (1 << 9)

   470

#define FLAG2_NO_DISABLE_RX               (1 << 10)

   471

#define FLAG2_PCIM2PCI_ARBITER_WA         (1 << 11)

   472

#define FLAG2_DFLT_CRC_STRIPPING          (1 << 12)

   473

   474

#define E1000_RX_DESC_PS(R, i)	    \

   475

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

   476

#define E1000_RX_DESC_EXT(R, i)	    \

   477

	(&(((union e1000_rx_desc_extended *)((R).desc))[i]))

   478

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

   479

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

   480

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

   481

   482

enum e1000_state_t {

   483

	__E1000_TESTING,

   484

	__E1000_RESETTING,

   485

	__E1000_ACCESS_SHARED_RESOURCE,

   486

	__E1000_DOWN

   487

};

   488

   489

enum latency_range {

   490

	lowest_latency = 0,

   491

	low_latency = 1,

   492

	bulk_latency = 2,

   493

	latency_invalid = 255

   494

};

   495

   496

extern char e1000e_driver_name[];

   497

extern const char e1000e_driver_version[];

   498

   499

extern void e1000e_check_options(struct e1000_adapter *adapter);

   500

extern void e1000e_set_ethtool_ops(struct net_device *netdev);

   501

   502

extern int e1000e_up(struct e1000_adapter *adapter);

   503

extern void e1000e_down(struct e1000_adapter *adapter);

   504

extern void e1000e_reinit_locked(struct e1000_adapter *adapter);

   505

extern void e1000e_reset(struct e1000_adapter *adapter);

   506

extern void e1000e_power_up_phy(struct e1000_adapter *adapter);

   507

extern int e1000e_setup_rx_resources(struct e1000_ring *ring);

   508

extern int e1000e_setup_tx_resources(struct e1000_ring *ring);

   509

extern void e1000e_free_rx_resources(struct e1000_ring *ring);

   510

extern void e1000e_free_tx_resources(struct e1000_ring *ring);

   511

extern struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,

   512

                                                    struct rtnl_link_stats64

   513

                                                    *stats);

   514

extern void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);

   515

extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);

   516

extern void e1000e_get_hw_control(struct e1000_adapter *adapter);

   517

extern void e1000e_release_hw_control(struct e1000_adapter *adapter);

   518

extern void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr);

   519

   520

extern unsigned int copybreak;

   521

   522

extern char *e1000e_get_hw_dev_name(struct e1000_hw *hw);

   523

   524

extern const struct e1000_info e1000_82571_info;

   525

extern const struct e1000_info e1000_82572_info;

   526

extern const struct e1000_info e1000_82573_info;

   527

extern const struct e1000_info e1000_82574_info;

   528

extern const struct e1000_info e1000_82583_info;

   529

extern const struct e1000_info e1000_ich8_info;

   530