path: root/linux/r8169-6.030.01/src/r8169.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
################################################################################
#
# r8169 is the Linux device driver released for Realtek Gigabit Ethernet
# Controllers with PCI interface.
#
# Copyright(c) 2022 Realtek Semiconductor Corp. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, see <http://www.gnu.org/licenses/>.
#
# Author:
# Realtek NIC software team <nicfae@realtek.com>
# No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan
#
################################################################################
*/

/************************************************************************************
 *  This product is covered by one or more of the following patents:
 *  US6,570,884, US6,115,776, and US6,327,625.
 ***********************************************************************************/

#include <linux/ethtool.h>

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
typedef int netdev_tx_t;
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
#define skb_transport_offset(skb) (skb->h.raw - skb->data)
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
#define device_set_wakeup_enable(dev, val)	do {} while (0)
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(3,14,0)
static inline void ether_addr_copy(u8 *dst, const u8 *src)
{
        u16 *a = (u16 *)dst;
        const u16 *b = (const u16 *)src;

        a[0] = b[0];
        a[1] = b[1];
        a[2] = b[2];
}
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(3,15,0)
#define IS_ERR_OR_NULL(ptr)			(!ptr)
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,13,0)
#define reinit_completion(x)			((x)->done = 0)
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
#define pm_runtime_mark_last_busy(x)
#define pm_runtime_put_autosuspend(x)		pm_runtime_put(x)
#define pm_runtime_put_sync_autosuspend(x)	pm_runtime_put_sync(x)

static inline bool pm_runtime_suspended(struct device *dev)
{
        return dev->power.runtime_status == RPM_SUSPENDED
               && !dev->power.disable_depth;
}

static inline bool pm_runtime_active(struct device *dev)
{
        return dev->power.runtime_status == RPM_ACTIVE
               || dev->power.disable_depth;
}
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)
#define queue_delayed_work(long_wq, work, delay)	schedule_delayed_work(work, delay)
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34)
#define netif_printk(priv, type, level, netdev, fmt, args...)	\
	do {								\
		if (netif_msg_##type(priv))				\
			printk(level "%s: " fmt,(netdev)->name , ##args); \
	} while (0)

#define netif_emerg(priv, type, netdev, fmt, args...)		\
		netif_printk(priv, type, KERN_EMERG, netdev, fmt, ##args)
#define netif_alert(priv, type, netdev, fmt, args...)		\
		netif_printk(priv, type, KERN_ALERT, netdev, fmt, ##args)
#define netif_crit(priv, type, netdev, fmt, args...)		\
		netif_printk(priv, type, KERN_CRIT, netdev, fmt, ##args)
#define netif_err(priv, type, netdev, fmt, args...)		\
		netif_printk(priv, type, KERN_ERR, netdev, fmt, ##args)
#define netif_warn(priv, type, netdev, fmt, args...)		\
		netif_printk(priv, type, KERN_WARNING, netdev, fmt, ##args)
#define netif_notice(priv, type, netdev, fmt, args...)		\
		netif_printk(priv, type, KERN_NOTICE, netdev, fmt, ##args)
#define netif_info(priv, type, netdev, fmt, args...)		\
		netif_printk(priv, type, KERN_INFO, (netdev), fmt, ##args)
#endif
#endif
#endif
#endif
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15)
#define setup_timer(_timer, _function, _data) \
do { \
	(_timer)->function = _function; \
	(_timer)->data = _data; \
	init_timer(_timer); \
} while (0)
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15)

#if LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)
#if defined(skb_vlan_tag_present) && !defined(vlan_tx_tag_present)
#define vlan_tx_tag_present skb_vlan_tag_present
#endif
#if defined(skb_vlan_tag_get) && !defined(vlan_tx_tag_get)
#define vlan_tx_tag_get skb_vlan_tag_get
#endif
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(4,0,0)

#define RTL_ALLOC_SKB_INTR(tp, length) dev_alloc_skb(length)
#ifdef CONFIG_R8169_NAPI
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)
#undef RTL_ALLOC_SKB_INTR
#define RTL_ALLOC_SKB_INTR(tp, length) napi_alloc_skb(&tp->napi, length)
#endif
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)
#define eth_random_addr(addr) random_ether_addr(addr)
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)

#if LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0)
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,0)
#define netdev_features_t  u32
#endif
#endif

#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
#define NETIF_F_HW_VLAN_RX	NETIF_F_HW_VLAN_CTAG_RX
#define NETIF_F_HW_VLAN_TX	NETIF_F_HW_VLAN_CTAG_TX
#endif

#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)
#define __devinit
#define __devexit
#define __devexit_p(func)	func
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
#define CHECKSUM_PARTIAL CHECKSUM_HW
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
#define irqreturn_t void
#define IRQ_HANDLED	1
#define IRQ_NONE	0
#define IRQ_RETVAL(x)
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
typedef unsigned long uintptr_t;
#endif

#ifndef NETIF_F_RXALL
#define NETIF_F_RXALL  0
#endif

#ifndef NETIF_F_RXFCS
#define NETIF_F_RXFCS  0
#endif

#ifndef HAVE_FREE_NETDEV
#define free_netdev(x)	kfree(x)
#endif

#ifndef SET_NETDEV_DEV
#define SET_NETDEV_DEV(net, pdev)
#endif

#ifndef SET_MODULE_OWNER
#define SET_MODULE_OWNER(dev)
#endif

#ifndef SA_SHIRQ
#define SA_SHIRQ IRQF_SHARED
#endif

#ifndef NETIF_F_GSO
#define gso_size	tso_size
#define gso_segs	tso_segs
#endif

#ifndef PCI_VENDOR_ID_DLINK
#define PCI_VENDOR_ID_DLINK 0x1186
#endif

#ifndef dma_mapping_error
#define dma_mapping_error(a,b) 0
#endif

#ifndef netif_err
#define netif_err(a,b,c,d)
#endif

#ifndef AUTONEG_DISABLE
#define AUTONEG_DISABLE   0x00
#endif

#ifndef AUTONEG_ENABLE
#define AUTONEG_ENABLE    0x01
#endif

#ifndef BMCR_SPEED1000
#define BMCR_SPEED1000  0x0040
#endif

#ifndef BMCR_SPEED100
#define BMCR_SPEED100   0x2000
#endif

#ifndef BMCR_SPEED10
#define BMCR_SPEED10    0x0000
#endif

#ifndef SPEED_UNKNOWN
#define SPEED_UNKNOWN   -1
#endif

#ifndef DUPLEX_UNKNOWN
#define DUPLEX_UNKNOWN  0xff
#endif

#ifndef SUPPORTED_Pause
#define SUPPORTED_Pause  (1 << 13)
#endif

#ifndef SUPPORTED_Asym_Pause
#define SUPPORTED_Asym_Pause  (1 << 14)
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
#ifdef CONFIG_NET_POLL_CONTROLLER
#define RTL_NET_POLL_CONTROLLER dev->poll_controller=rtl8169_netpoll
#else
#define RTL_NET_POLL_CONTROLLER
#endif

#ifdef CONFIG_R8169_VLAN
#define RTL_SET_VLAN dev->vlan_rx_register=rtl8169_vlan_rx_register
#else
#define RTL_SET_VLAN
#endif

#define RTL_NET_DEVICE_OPS(ops)	dev->open=rtl8169_open; \
					dev->hard_start_xmit=rtl8169_start_xmit; \
					dev->get_stats=rtl8169_get_stats; \
					dev->stop=rtl8169_close; \
					dev->tx_timeout=rtl8169_tx_timeout; \
					dev->set_multicast_list=rtl8169_set_rx_mode; \
					dev->change_mtu=rtl8169_change_mtu; \
					dev->set_mac_address=rtl8169_set_mac_address; \
					dev->do_ioctl=rtl8169_ioctl; \
					RTL_NET_POLL_CONTROLLER; \
					RTL_SET_VLAN;
#else
#define RTL_NET_DEVICE_OPS(ops)	dev->netdev_ops=&ops
#endif

#ifndef FALSE
#define FALSE 0
#endif

#ifndef TRUE
#define TRUE  1
#endif

#ifndef false
#define false 0
#endif

#ifndef true
#define true  1
#endif

#ifndef NET_IP_ALIGN
#define NET_IP_ALIGN 2
#endif

#define NODE_ADDRESS_SIZE 6

#define SHORT_PACKET_PADDING_BUF_SIZE 256

#define RTK_MAGIC_DEBUG_VALUE 0x0badbeef

#ifdef CONFIG_R8169_NAPI
#define NAPI_SUFFIX	"-NAPI"
#else
#define NAPI_SUFFIX	""
#endif

#define RTL8169_VERSION "6.030.01" NAPI_SUFFIX
#define MODULENAME "r8169"
#define PFX MODULENAME ": "

#define GPL_CLAIM "\
r8169  Copyright (C) 2022 Realtek NIC software team <nicfae@realtek.com> \n \
This program comes with ABSOLUTELY NO WARRANTY; for details, please see <http://www.gnu.org/licenses/>. \n \
This is free software, and you are welcome to redistribute it under certain conditions; see <http://www.gnu.org/licenses/>. \n"

#ifdef RTL8169_DEBUG
#define assert(expr) \
	if (!(expr)) {					\
		printk( "Assertion failed! %s,%s,%s,line=%d\n",	\
		#expr,__FILE__,__FUNCTION__,__LINE__);		\
	}
#define dprintk(fmt, args...)	do { printk(PFX fmt, ## args); } while (0)
#else
#define assert(expr) do {} while (0)
#define dprintk(fmt, args...)	do {} while (0)
#endif /* RTL8169_DEBUG */

#define R8169_MSG_DEFAULT \
	(NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)

#ifdef CONFIG_R8169_NAPI
#define rtl8169_rx_skb			netif_receive_skb
#define rtl8169_rx_hwaccel_skb		vlan_hwaccel_receive_skb
#define rtl8169_rx_quota(count, quota)	min(count, quota)
#else
#define rtl8169_rx_skb			netif_rx
#define rtl8169_rx_hwaccel_skb		vlan_hwaccel_rx
#define rtl8169_rx_quota(count, quota)	count
#endif

/* MAC address length */
#ifndef MAC_ADDR_LEN
#define MAC_ADDR_LEN	6
#endif

#ifndef MAC_PROTOCOL_LEN
#define MAC_PROTOCOL_LEN	2
#endif

#ifndef ETH_FCS_LEN
#define ETH_FCS_LEN	  4
#endif

#ifndef NETIF_F_TSO6
#define NETIF_F_TSO6  0
#endif

#define Reserved2_data	7
#define RX_DMA_BURST	7	/* Maximum PCI burst, '7' is unlimited */
#define TX_DMA_BURST	7	/* Maximum PCI burst, '7' is unlimited */
#define Reserved1_data 	0x3F
#define RxPacketMaxSize	0x3FE8	/* 16K - 1 - ETH_HLEN - VLAN - CRC... */
#define Jumbo_Frame_7k  (7*1024 - ETH_HLEN - VLAN_HLEN - ETH_FCS_LEN)

#define IFG0	(1 << 24)
#define IFG1	(1 << 25)
#define IFG2	(1 << 19)

#define R8169_REGS_SIZE		(256)
#define R8169_MAC_REGS_SIZE     (256)
#define R8169_PHY_REGS_SIZE     (16*2)
#define R8169_REGS_DUMP_SIZE    (0x200)
#define R8169_NAPI_WEIGHT	64
#define NUM_TX_DESC	256	/* Number of Tx descriptor registers */
#define NUM_RX_DESC	256	/* Number of Rx descriptor registers */
#define RX_BUF_SIZE	1536	/* Rx Buffer size */
#define R8169_TX_RING_BYTES	(NUM_TX_DESC * sizeof(struct TxDesc))
#define R8169_RX_RING_BYTES	(NUM_RX_DESC * sizeof(struct RxDesc))

#define RTL8169_TX_TIMEOUT	(6*HZ)
#define RTL8169_PHY_TIMEOUT	(10*HZ)
#define RTL8169_ESD_TIMEOUT	(2*HZ)

/* write/read MMIO register */
#define RTL_W8(reg, val8)	writeb ((val8), ioaddr + (reg))
#define RTL_W16(reg, val16)	writew ((val16), ioaddr + (reg))
#define RTL_W32(reg, val32)	writel ((val32), ioaddr + (reg))
#define RTL_R8(reg)		readb (ioaddr + (reg))
#define RTL_R16(reg)		readw (ioaddr + (reg))
#define RTL_R32(reg)		((unsigned long) readl (ioaddr + (reg)))

#ifndef	DMA_64BIT_MASK
#define DMA_64BIT_MASK	0xffffffffffffffffULL
#endif

#ifndef	DMA_32BIT_MASK
#define DMA_32BIT_MASK	0x00000000ffffffffULL
#endif

#ifndef	NETDEV_TX_OK
#define NETDEV_TX_OK 0		/* driver took care of packet */
#endif

#ifndef	NETDEV_TX_BUSY
#define NETDEV_TX_BUSY 1	/* driver tx path was busy*/
#endif

#ifndef	NETDEV_TX_LOCKED
#define NETDEV_TX_LOCKED -1	/* driver tx lock was already taken */
#endif

#ifndef	ADVERTISED_Pause
#define ADVERTISED_Pause	(1 << 13)
#endif

#ifndef	ADVERTISED_Asym_Pause
#define ADVERTISED_Asym_Pause	(1 << 14)
#endif

#ifndef	ADVERTISE_PAUSE_CAP
#define ADVERTISE_PAUSE_CAP	0x400
#endif

#ifndef	ADVERTISE_PAUSE_ASYM
#define ADVERTISE_PAUSE_ASYM	0x800
#endif

#ifndef	MII_CTRL1000
#define MII_CTRL1000		0x09
#endif

#ifndef	ADVERTISE_1000FULL
#define ADVERTISE_1000FULL	0x200
#endif

#ifndef	ADVERTISE_1000HALF
#define ADVERTISE_1000HALF	0x100
#endif

#ifndef ETH_MIN_MTU
#define ETH_MIN_MTU  68
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)
#ifdef __CHECKER__
#define __iomem	__attribute__((noderef, address_space(2)))
extern void __chk_io_ptr(void __iomem *);
#define __bitwise __attribute__((bitwise))
#else
#define __iomem
#define __chk_io_ptr(x) (void)0
#define __bitwise
#endif
#endif	//LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)

#ifndef module_param
#define module_param(v,t,p) MODULE_PARM(v, "i");
#endif

#ifndef PCI_DEVICE
#define PCI_DEVICE(vend,dev) \
	.vendor = (vend), .device = (dev), \
	.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
#endif

/*****************************************************************************/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
#define	RTLDEV	tp
#else
#define	RTLDEV	dev
#endif	//LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
/*****************************************************************************/

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
typedef struct net_device *napi_ptr;
typedef int *napi_budget;

#define napi dev
#define RTL_NAPI_CONFIG(ndev, priv, function, weig)	ndev->poll=function;	\
								ndev->weight=weig;
#define RTL_NAPI_QUOTA(budget, ndev)			min(*budget, ndev->quota)
#define RTL_GET_PRIV(stuct_ptr, priv_struct)		netdev_priv(stuct_ptr)
#define RTL_GET_NETDEV(priv_ptr)
#define RTL_RX_QUOTA(budget)			*budget
#define RTL_NAPI_QUOTA_UPDATE(ndev, work_done, budget)	*budget -= work_done;	\
								ndev->quota -= work_done;
#define RTL_NETIF_RX_COMPLETE(dev, napi, work_done)		netif_rx_complete(dev)
#define RTL_NETIF_RX_SCHEDULE_PREP(dev, napi)		netif_rx_schedule_prep(dev)
#define __RTL_NETIF_RX_SCHEDULE(dev, napi)		__netif_rx_schedule(dev)
#define RTL_NAPI_RETURN_VALUE				work_done >= work_to_do
#define RTL_NAPI_ENABLE(dev, napi)			netif_poll_enable(dev)
#define RTL_NAPI_DISABLE(dev, napi)			netif_poll_disable(dev)
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
#else
typedef struct napi_struct *napi_ptr;
typedef int napi_budget;

#define RTL_NAPI_CONFIG(ndev, priv, function, weight)	netif_napi_add(ndev, &priv->napi, function, weight)
#define RTL_NAPI_QUOTA(budget, ndev)			min(budget, budget)
#define RTL_GET_PRIV(stuct_ptr, priv_struct)		container_of(stuct_ptr, priv_struct, stuct_ptr)
#define RTL_GET_NETDEV(priv_ptr)			struct net_device *dev = priv_ptr->dev;
#define RTL_RX_QUOTA(budget)			budget
#define RTL_NAPI_QUOTA_UPDATE(ndev, work_done, budget)
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
#define RTL_NETIF_RX_COMPLETE(dev, napi, work_done)		netif_rx_complete(dev, napi)
#define RTL_NETIF_RX_SCHEDULE_PREP(dev, napi)		netif_rx_schedule_prep(dev, napi)
#define __RTL_NETIF_RX_SCHEDULE(dev, napi)		__netif_rx_schedule(dev, napi)
#endif
#if LINUX_VERSION_CODE == KERNEL_VERSION(2,6,29)
#define RTL_NETIF_RX_COMPLETE(dev, napi, work_done)		netif_rx_complete(napi)
#define RTL_NETIF_RX_SCHEDULE_PREP(dev, napi)		netif_rx_schedule_prep(napi)
#define __RTL_NETIF_RX_SCHEDULE(dev, napi)		__netif_rx_schedule(napi)
#endif
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,29)
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)
#define RTL_NETIF_RX_COMPLETE(dev, napi, work_done)        napi_complete_done(napi, work_done)
#else
#define RTL_NETIF_RX_COMPLETE(dev, napi, work_done)        napi_complete(napi)
#endif
#define RTL_NETIF_RX_SCHEDULE_PREP(dev, napi)		napi_schedule_prep(napi)
#define __RTL_NETIF_RX_SCHEDULE(dev, napi)		__napi_schedule(napi)
#endif
#define RTL_NAPI_RETURN_VALUE work_done
#define RTL_NAPI_ENABLE(dev, napi)			napi_enable(napi)
#define RTL_NAPI_DISABLE(dev, napi)			napi_disable(napi)
#endif	//LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
#define RTL_NAPI_DEL(priv)
#else
#define RTL_NAPI_DEL(priv)   netif_napi_del(&priv->napi)
#endif //LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)

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

/* 2.4.22 => 2.4.17 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,4,22) )
#define pci_name(x)	((x)->slot_name)
#endif /* 2.4.22 => 2.4.17 */

/*****************************************************************************/
/* 2.6.5 => 2.6.0 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,5) )
#define pci_dma_sync_single_for_cpu	pci_dma_sync_single
#define pci_dma_sync_single_for_device	pci_dma_sync_single_for_cpu
#endif /* 2.6.5 => 2.6.0 */

/*****************************************************************************/
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10) )
#ifdef module_param_array_named
#undef module_param_array_named
#define module_param_array_named(name, array, type, nump, perm)          \
	static struct kparam_array __param_arr_##name                    \
	= { ARRAY_SIZE(array), nump, param_set_##type, param_get_##type, \
	    sizeof(array[0]), array };                                   \
	module_param_call(name, param_array_set, param_array_get,        \
			  &__param_arr_##name, perm)
#endif /* module_param_array_named */
#endif /* < 2.6.10 */

/*****************************************************************************/
/* 2.6.0 => 2.5.28 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) )
#define MODULE_INFO(version, _version)
#ifndef CONFIG_E1000_DISABLE_PACKET_SPLIT
#define CONFIG_E1000_DISABLE_PACKET_SPLIT 1
#endif

#define pci_set_consistent_dma_mask(dev,mask) 1

#undef dev_put
#define dev_put(dev) __dev_put(dev)

#ifndef skb_fill_page_desc
#define skb_fill_page_desc _kc_skb_fill_page_desc
extern void _kc_skb_fill_page_desc(struct sk_buff *skb, int i, struct page *page, int off, int size);
#endif

#ifndef pci_dma_mapping_error
#define pci_dma_mapping_error _kc_pci_dma_mapping_error
static inline int _kc_pci_dma_mapping_error(dma_addr_t dma_addr)
{
        return dma_addr == 0;
}
#endif

#undef ALIGN
#define ALIGN(x,a) (((x)+(a)-1)&~((a)-1))

#endif /* 2.6.0 => 2.5.28 */

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

/* 2.6.4 => 2.6.0 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) )
#define MODULE_VERSION(_version) MODULE_INFO(version, _version)
#endif /* 2.6.4 => 2.6.0 */

/*****************************************************************************/
/* 2.5.28 => 2.4.23 */
#if ( LINUX_VERSION_CODE < KERNEL_VERSION(2,5,28) )

static inline void _kc_synchronize_irq(void)
{
        synchronize_irq();
}
#undef synchronize_irq
#define synchronize_irq(X) _kc_synchronize_irq()

#include <linux/tqueue.h>
#define work_struct tq_struct
#undef INIT_WORK
#define INIT_WORK(a,b,c) INIT_TQUEUE(a,(void (*)(void *))b,c)
#undef container_of
#define container_of list_entry
#define schedule_work schedule_task
#define flush_scheduled_work flush_scheduled_tasks
#endif /* 2.5.28 => 2.4.17 */

/*****************************************************************************/
/* 2.6.4 => 2.6.0 */
#if ((LINUX_VERSION_CODE < KERNEL_VERSION(2,4,25) && \
     LINUX_VERSION_CODE > KERNEL_VERSION(2,4,22)) || \
    (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) && \
      LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4)))
#define ETHTOOL_OPS_COMPAT
#endif /* 2.6.4 => 2.6.0 */

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

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
/*
 * initialize a work-struct's func and data pointers:
 */
#define PREPARE_WORK(_work, _func, _data)			\
	do {							\
		(_work)->func = _func;				\
		(_work)->data = _data;				\
	} while (0)

#endif
/*****************************************************************************/

#if 0//LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
#undef ethtool_ops
#define ethtool_ops _kc_ethtool_ops

struct _kc_ethtool_ops {
        int  (*get_settings)(struct net_device *, struct ethtool_cmd *);
        int  (*set_settings)(struct net_device *, struct ethtool_cmd *);
        void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *);
        int  (*get_regs_len)(struct net_device *);
        void (*get_regs)(struct net_device *, struct ethtool_regs *, void *);
        void (*get_wol)(struct net_device *, struct ethtool_wolinfo *);
        int  (*set_wol)(struct net_device *, struct ethtool_wolinfo *);
        u32  (*get_msglevel)(struct net_device *);
        void (*set_msglevel)(struct net_device *, u32);
        int  (*nway_reset)(struct net_device *);
        u32  (*get_link)(struct net_device *);
        int  (*get_eeprom_len)(struct net_device *);
        int  (*get_eeprom)(struct net_device *, struct ethtool_eeprom *, u8 *);
        int  (*set_eeprom)(struct net_device *, struct ethtool_eeprom *, u8 *);
        int  (*get_coalesce)(struct net_device *, struct ethtool_coalesce *);
        int  (*set_coalesce)(struct net_device *, struct ethtool_coalesce *);
        void (*get_ringparam)(struct net_device *, struct ethtool_ringparam *);
        int  (*set_ringparam)(struct net_device *, struct ethtool_ringparam *);
        void (*get_pauseparam)(struct net_device *,
                               struct ethtool_pauseparam*);
        int  (*set_pauseparam)(struct net_device *,
                               struct ethtool_pauseparam*);
        u32  (*get_rx_csum)(struct net_device *);
        int  (*set_rx_csum)(struct net_device *, u32);
        u32  (*get_tx_csum)(struct net_device *);
        int  (*set_tx_csum)(struct net_device *, u32);
        u32  (*get_sg)(struct net_device *);
        int  (*set_sg)(struct net_device *, u32);
        u32  (*get_tso)(struct net_device *);
        int  (*set_tso)(struct net_device *, u32);
        int  (*self_test_count)(struct net_device *);
        void (*self_test)(struct net_device *, struct ethtool_test *, u64 *);
        void (*get_strings)(struct net_device *, u32 stringset, u8 *);
        int  (*phys_id)(struct net_device *, u32);
        int  (*get_stats_count)(struct net_device *);
        void (*get_ethtool_stats)(struct net_device *, struct ethtool_stats *,
                                  u64 *);
} *ethtool_ops = NULL;

#undef SET_ETHTOOL_OPS
#define SET_ETHTOOL_OPS(netdev, ops) (ethtool_ops = (ops))

#endif //LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)

#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)
#ifndef SET_ETHTOOL_OPS
#define SET_ETHTOOL_OPS(netdev,ops) \
         ( (netdev)->ethtool_ops = (ops) )
#endif //SET_ETHTOOL_OPS
#endif //LINUX_VERSION_CODE >= KERNEL_VERSION(3,16,0)

/*****************************************************************************/
/* Installations with ethtool version without eeprom, adapter id, or statistics
 * support */

#ifndef ETH_GSTRING_LEN
#define ETH_GSTRING_LEN 32
#endif

#ifndef ETHTOOL_GSTATS
#define ETHTOOL_GSTATS 0x1d
#undef ethtool_drvinfo
#define ethtool_drvinfo k_ethtool_drvinfo
struct k_ethtool_drvinfo {
        u32 cmd;
        char driver[32];
        char version[32];
        char fw_version[32];
        char bus_info[32];
        char reserved1[32];
        char reserved2[16];
        u32 n_stats;
        u32 testinfo_len;
        u32 eedump_len;
        u32 regdump_len;
};

struct ethtool_stats {
        u32 cmd;
        u32 n_stats;
        u64 data[0];
};
#endif /* ETHTOOL_GSTATS */

#ifndef ETHTOOL_PHYS_ID
#define ETHTOOL_PHYS_ID 0x1c
#endif /* ETHTOOL_PHYS_ID */

#ifndef ETHTOOL_GSTRINGS
#define ETHTOOL_GSTRINGS 0x1b
enum ethtool_stringset {
        ETH_SS_TEST             = 0,
        ETH_SS_STATS,
};
struct ethtool_gstrings {
        u32 cmd;            /* ETHTOOL_GSTRINGS */
        u32 string_set;     /* string set id e.c. ETH_SS_TEST, etc*/
        u32 len;            /* number of strings in the string set */
        u8 data[0];
};
#endif /* ETHTOOL_GSTRINGS */

#ifndef ETHTOOL_TEST
#define ETHTOOL_TEST 0x1a
enum ethtool_test_flags {
        ETH_TEST_FL_OFFLINE	= (1 << 0),
        ETH_TEST_FL_FAILED	= (1 << 1),
};
struct ethtool_test {
        u32 cmd;
        u32 flags;
        u32 reserved;
        u32 len;
        u64 data[0];
};
#endif /* ETHTOOL_TEST */

#ifndef ETHTOOL_GEEPROM
#define ETHTOOL_GEEPROM 0xb
#undef ETHTOOL_GREGS
struct ethtool_eeprom {
        u32 cmd;
        u32 magic;
        u32 offset;
        u32 len;
        u8 data[0];
};

struct ethtool_value {
        u32 cmd;
        u32 data;
};
#endif /* ETHTOOL_GEEPROM */

#ifndef ETHTOOL_GLINK
#define ETHTOOL_GLINK 0xa
#endif /* ETHTOOL_GLINK */

#ifndef ETHTOOL_GREGS
#define ETHTOOL_GREGS		0x00000004 /* Get NIC registers */
#define ethtool_regs _kc_ethtool_regs
/* for passing big chunks of data */
struct _kc_ethtool_regs {
        u32 cmd;
        u32 version; /* driver-specific, indicates different chips/revs */
        u32 len; /* bytes */
        u8 data[0];
};
#endif /* ETHTOOL_GREGS */

#ifndef ETHTOOL_GMSGLVL
#define ETHTOOL_GMSGLVL		0x00000007 /* Get driver message level */
#endif
#ifndef ETHTOOL_SMSGLVL
#define ETHTOOL_SMSGLVL		0x00000008 /* Set driver msg level, priv. */
#endif
#ifndef ETHTOOL_NWAY_RST
#define ETHTOOL_NWAY_RST	0x00000009 /* Restart autonegotiation, priv */
#endif
#ifndef ETHTOOL_GLINK
#define ETHTOOL_GLINK		0x0000000a /* Get link status */
#endif
#ifndef ETHTOOL_GEEPROM
#define ETHTOOL_GEEPROM		0x0000000b /* Get EEPROM data */
#endif
#ifndef ETHTOOL_SEEPROM
#define ETHTOOL_SEEPROM		0x0000000c /* Set EEPROM data */
#endif
#ifndef ETHTOOL_GCOALESCE
#define ETHTOOL_GCOALESCE	0x0000000e /* Get coalesce config */
/* for configuring coalescing parameters of chip */
#define ethtool_coalesce _kc_ethtool_coalesce
struct _kc_ethtool_coalesce {
        u32	cmd;	/* ETHTOOL_{G,S}COALESCE */

        /* How many usecs to delay an RX interrupt after
         * a packet arrives.  If 0, only rx_max_coalesced_frames
         * is used.
         */
        u32	rx_coalesce_usecs;

        /* How many packets to delay an RX interrupt after
         * a packet arrives.  If 0, only rx_coalesce_usecs is
         * used.  It is illegal to set both usecs and max frames
         * to zero as this would cause RX interrupts to never be
         * generated.
         */
        u32	rx_max_coalesced_frames;

        /* Same as above two parameters, except that these values
         * apply while an IRQ is being serviced by the host.  Not
         * all cards support this feature and the values are ignored
         * in that case.
         */
        u32	rx_coalesce_usecs_irq;
        u32	rx_max_coalesced_frames_irq;

        /* How many usecs to delay a TX interrupt after
         * a packet is sent.  If 0, only tx_max_coalesced_frames
         * is used.
         */
        u32	tx_coalesce_usecs;

        /* How many packets to delay a TX interrupt after
         * a packet is sent.  If 0, only tx_coalesce_usecs is
         * used.  It is illegal to set both usecs and max frames
         * to zero as this would cause TX interrupts to never be
         * generated.
         */
        u32	tx_max_coalesced_frames;

        /* Same as above two parameters, except that these values
         * apply while an IRQ is being serviced by the host.  Not
         * all cards support this feature and the values are ignored
         * in that case.
         */
        u32	tx_coalesce_usecs_irq;
        u32	tx_max_coalesced_frames_irq;

        /* How many usecs to delay in-memory statistics
         * block updates.  Some drivers do not have an in-memory
         * statistic block, and in such cases this value is ignored.
         * This value must not be zero.
         */
        u32	stats_block_coalesce_usecs;

        /* Adaptive RX/TX coalescing is an algorithm implemented by
         * some drivers to improve latency under low packet rates and
         * improve throughput under high packet rates.  Some drivers
         * only implement one of RX or TX adaptive coalescing.  Anything
         * not implemented by the driver causes these values to be
         * silently ignored.
         */
        u32	use_adaptive_rx_coalesce;
        u32	use_adaptive_tx_coalesce;

        /* When the packet rate (measured in packets per second)
         * is below pkt_rate_low, the {rx,tx}_*_low parameters are
         * used.
         */
        u32	pkt_rate_low;
        u32	rx_coalesce_usecs_low;
        u32	rx_max_coalesced_frames_low;
        u32	tx_coalesce_usecs_low;
        u32	tx_max_coalesced_frames_low;

        /* When the packet rate is below pkt_rate_high but above
         * pkt_rate_low (both measured in packets per second) the
         * normal {rx,tx}_* coalescing parameters are used.
         */

        /* When the packet rate is (measured in packets per second)
         * is above pkt_rate_high, the {rx,tx}_*_high parameters are
         * used.
         */
        u32	pkt_rate_high;
        u32	rx_coalesce_usecs_high;
        u32	rx_max_coalesced_frames_high;
        u32	tx_coalesce_usecs_high;
        u32	tx_max_coalesced_frames_high;

        /* How often to do adaptive coalescing packet rate sampling,
         * measured in seconds.  Must not be zero.
         */
        u32	rate_sample_interval;
};
#endif /* ETHTOOL_GCOALESCE */

#ifndef ETHTOOL_SCOALESCE
#define ETHTOOL_SCOALESCE	0x0000000f /* Set coalesce config. */
#endif
#ifndef ETHTOOL_GRINGPARAM
#define ETHTOOL_GRINGPARAM	0x00000010 /* Get ring parameters */
/* for configuring RX/TX ring parameters */
#define ethtool_ringparam _kc_ethtool_ringparam
struct _kc_ethtool_ringparam {
        u32	cmd;	/* ETHTOOL_{G,S}RINGPARAM */

        /* Read only attributes.  These indicate the maximum number
         * of pending RX/TX ring entries the driver will allow the
         * user to set.
         */
        u32	rx_max_pending;
        u32	rx_mini_max_pending;
        u32	rx_jumbo_max_pending;
        u32	tx_max_pending;

        /* Values changeable by the user.  The valid values are
         * in the range 1 to the "*_max_pending" counterpart above.
         */
        u32	rx_pending;
        u32	rx_mini_pending;
        u32	rx_jumbo_pending;
        u32	tx_pending;
};
#endif /* ETHTOOL_GRINGPARAM */

#ifndef ETHTOOL_SRINGPARAM
#define ETHTOOL_SRINGPARAM	0x00000011 /* Set ring parameters, priv. */
#endif
#ifndef ETHTOOL_GPAUSEPARAM
#define ETHTOOL_GPAUSEPARAM	0x00000012 /* Get pause parameters */
/* for configuring link flow control parameters */
#define ethtool_pauseparam _kc_ethtool_pauseparam
struct _kc_ethtool_pauseparam {
        u32	cmd;	/* ETHTOOL_{G,S}PAUSEPARAM */

        /* If the link is being auto-negotiated (via ethtool_cmd.autoneg
         * being true) the user may set 'autonet' here non-zero to have the
         * pause parameters be auto-negotiated too.  In such a case, the
         * {rx,tx}_pause values below determine what capabilities are
         * advertised.
         *
         * If 'autoneg' is zero or the link is not being auto-negotiated,
         * then {rx,tx}_pause force the driver to use/not-use pause
         * flow control.
         */
        u32	autoneg;
        u32	rx_pause;
        u32	tx_pause;
};
#endif /* ETHTOOL_GPAUSEPARAM */

#ifndef ETHTOOL_SPAUSEPARAM
#define ETHTOOL_SPAUSEPARAM	0x00000013 /* Set pause parameters. */
#endif
#ifndef ETHTOOL_GRXCSUM
#define ETHTOOL_GRXCSUM		0x00000014 /* Get RX hw csum enable (ethtool_value) */
#endif
#ifndef ETHTOOL_SRXCSUM
#define ETHTOOL_SRXCSUM		0x00000015 /* Set RX hw csum enable (ethtool_value) */
#endif
#ifndef ETHTOOL_GTXCSUM
#define ETHTOOL_GTXCSUM		0x00000016 /* Get TX hw csum enable (ethtool_value) */
#endif
#ifndef ETHTOOL_STXCSUM
#define ETHTOOL_STXCSUM		0x00000017 /* Set TX hw csum enable (ethtool_value) */
#endif
#ifndef ETHTOOL_GSG
#define ETHTOOL_GSG		0x00000018 /* Get scatter-gather enable
* (ethtool_value) */
#endif
#ifndef ETHTOOL_SSG
#define ETHTOOL_SSG		0x00000019 /* Set scatter-gather enable
* (ethtool_value). */
#endif
#ifndef ETHTOOL_TEST
#define ETHTOOL_TEST		0x0000001a /* execute NIC self-test, priv. */
#endif
#ifndef ETHTOOL_GSTRINGS
#define ETHTOOL_GSTRINGS	0x0000001b /* get specified string set */
#endif
#ifndef ETHTOOL_PHYS_ID
#define ETHTOOL_PHYS_ID		0x0000001c /* identify the NIC */
#endif
#ifndef ETHTOOL_GSTATS
#define ETHTOOL_GSTATS		0x0000001d /* get NIC-specific statistics */
#endif
#ifndef ETHTOOL_GTSO
#define ETHTOOL_GTSO		0x0000001e /* Get TSO enable (ethtool_value) */
#endif
#ifndef ETHTOOL_STSO
#define ETHTOOL_STSO		0x0000001f /* Set TSO enable (ethtool_value) */
#endif

#ifndef ETHTOOL_BUSINFO_LEN
#define ETHTOOL_BUSINFO_LEN	32
#endif

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

enum mcfg {
        CFG_METHOD_1 = 0x00,
        CFG_METHOD_2 = 0x01,
        CFG_METHOD_3 = 0x02,
        CFG_METHOD_4 = 0x04,
        CFG_METHOD_5 = 0x05,
        CFG_METHOD_6 = 0x06,
};

enum pcfg {
        PCFG_METHOD_1 = 0x03, /* PHY Reg 0x03 bit0-3 == 0x0000 */
        PCFG_METHOD_2 = 0x04, /* PHY Reg 0x03 bit0-3 == 0x0000 */
        PCFG_METHOD_3 = 0x05, /* PHY Reg 0x03 bit0-3 == 0x0000 */
        PCFG_METHOD_4 = 0x06, /* PHY Reg 0x03 bit0-3 == 0x0001 */
        PCFG_METHOD_5 = 0x07, /* PHY Reg 0x03 bit0-3 == 0x0002 */
        PCFG_METHOD_6 = 0x08, /* PHY Reg 0x03 bit0-3 == 0x0003 */
};

enum RTL8169_registers {
        MAC0 = 0x00,		/* Ethernet hardware address. */
        MAC4 = 0x04,
        MAR0 = 0x08,		/* Multicast filter. */
        CounterAddrLow = 0x10,
        CounterAddrHigh = 0x14,
        TxDescStartAddrLow = 0x20,
        TxDescStartAddrHigh = 0x24,
        TxHDescStartAddrLow = 0x28,
        TxHDescStartAddrHigh = 0x2c,
        FLASH = 0x30,
        ERSR = 0x36,
        ChipCmd = 0x37,
        TxPoll = 0x38,
        IntrMask = 0x3C,
        IntrStatus = 0x3E,
        TxConfig = 0x40,
        RxConfig = 0x44,
        RxMissed = 0x4C,
        Cfg9346 = 0x50,
        Config0 = 0x51,
        Config1 = 0x52,
        Config2 = 0x53,
        Config3 = 0x54,
        Config4 = 0x55,
        Config5 = 0x56,
        TimeInt0 = 0x58,
        MultiIntr = 0x5C,
        PHYAR = 0x60,
        PHYstatus = 0x6C,
        Offset_7Ch = 0x7C,
        RxMaxSize = 0xDA,
        CPlusCmd = 0xE0,
        IntrMitigate = 0xE2,
        RxDescAddrLow = 0xE4,
        RxDescAddrHigh = 0xE8,
        Reserved1 = 0xEC,
        FuncEvent = 0xF0,
        FuncEventMask = 0xF4,
        FuncPresetState = 0xF8,
        FuncForceEvent = 0xFC,
};

enum RTL8169_register_content {
        /* InterruptStatusBits */
        SYSErr = 0x8000,
        PCSTimeout = 0x4000,
        SWInt = 0x0100,
        TxDescUnavail = 0x80,
        RxFIFOOver = 0x40,
        LinkChg = 0x20,
        RxOverflow = 0x10,
        TxErr = 0x08,
        TxOK = 0x04,
        RxErr = 0x02,
        RxOK = 0x01,

        /* RxStatusDesc */
        RxRWT	= (1 << 22),
        RxRES	= (1 << 21),
        RxRUNT	= (1 << 20),
        RxCRC	= (1 << 19),

        /* ChipCmdBits */
        CmdReset = 0x10,
        CmdRxEnb = 0x08,
        CmdTxEnb = 0x04,
        RxBufEmpty = 0x01,

        /* Cfg9346Bits */
        Cfg9346_Lock = 0x00,
        Cfg9346_Unlock = 0xC0,

        /* rx_mode_bits */
        AcceptErr = 0x20,
        AcceptRunt = 0x10,
        AcceptBroadcast = 0x08,
        AcceptMulticast = 0x04,
        AcceptMyPhys = 0x02,
        AcceptAllPhys = 0x01,

        /* Transmit Priority Polling*/
        HPQ = 0x80,
        NPQ = 0x40,
        FSWInt = 0x01,

        /* RxConfigBits */
        Reserved2_shift = 13,
        RxCfgDMAShift = 8,

        /* TxConfigBits */
        TxInterFrameGapShift = 24,
        TxDMAShift = 8,	/* DMA burst value (0-7) is shift this many bits */
        TxMACLoopBack = (1 << 17),	/* MAC loopback */

        /* Config1 register p.24 */
        PMEnable	= (1 << 0),	/* Power Management Enable */
        VPDEnable	= (1 << 1),	/* RTL8169 VPD eanble */

        /* Config2 register p.26 */
        PCI_Clock_66MHz	= 0x01,
        PCI_Clock_33MHz	= 0x00,

        /* Config3 register p.25 */
        MagicPacket	= (1 << 5),	/* Wake up when receives a Magic Packet */
        LinkUp		= (1 << 4),	/* Wake up when the cable connection is re-established */

        /* Config4 register */
        iMode	= (1 << 0),	/* Improve IP/TCP checksum compatibility with some NIC cards for RTL8169SB */

        /* Config5 register p.27 */
        BWF		= (1 << 6),	/* Accept Broadcast wakeup frame */
        MWF		= (1 << 5),	/* Accept Multicast wakeup frame */
        UWF		= (1 << 4),	/* Accept Unicast wakeup frame */
        LanWake		= (1 << 1),	/* LanWake enable/disable */
        PMEStatus	= (1 << 0),	/* PME status can be reset by PCI RST# */

        /* CPlusCmd p.31 */
        EnAnaPLL	= (1 << 14),
        RxVlan		= (1 << 6),
        RxChkSum	= (1 << 5),
        PCIDAC		= (1 << 4),
        PCIMulRW	= (1 << 3),

        /* rtl8169_PHYstatus */
        TxFlowCtrl = 0x40,
        RxFlowCtrl = 0x20,
        _1000bpsF = 0x10,
        _100bps = 0x08,
        _10bps = 0x04,
        LinkStatus = 0x02,
        FullDup = 0x01,

        /* DumpCounterCommand */
        CounterDump = 0x8,

        /* PHY access */
        PHYAR_Flag = 0x80000000,
        PHYAR_Write = 0x80000000,
        PHYAR_Read = 0x00000000,
        PHYAR_Reg_Mask = 0x1f,
        PHYAR_Reg_shift = 16,
        PHYAR_Data_Mask = 0xffff,
};

enum _DescStatusBit {
        DescOwn		= (1 << 31), /* Descriptor is owned by NIC */
        RingEnd		= (1 << 30), /* End of descriptor ring */
        FirstFrag	= (1 << 29), /* First segment of a packet */
        LastFrag	= (1 << 28), /* Final segment of a packet */

        /* Tx private */
        LargeSend	= (1 << 27), /* TCP Large Send Offload (TSO) */
        MSSShift	= 16,        /* MSS value position */
        MSSMask         = 0x7FFU,    /* MSS value 11 bits */
        IPCS		= (1 << 18), /* Calculate IP checksum */
        UDPCS		= (1 << 17), /* Calculate UDP/IP checksum */
        TCPCS		= (1 << 16), /* Calculate TCP/IP checksum */
        TxVlanTag	= (1 << 17), /* Add VLAN tag */

        /* Rx private */
        PID1		= (1 << 18), /* Protocol ID bit 1/2 */
        PID0		= (1 << 17), /* Protocol ID bit 2/2 */

#define RxProtoUDP	(PID1)
#define RxProtoTCP	(PID0)
#define RxProtoIP	(PID1 | PID0)
#define RxProtoMask	RxProtoIP

        IPFail		= (1 << 16), /* IP checksum failed */
        UDPFail		= (1 << 15), /* UDP/IP checksum failed */
        TCPFail		= (1 << 14), /* TCP/IP checksum failed */
        RxVlanTag	= (1 << 16), /* VLAN tag available */
};

enum bits {
        BIT_0 = (1 << 0),
        BIT_1 = (1 << 1),
        BIT_2 = (1 << 2),
        BIT_3 = (1 << 3),
        BIT_4 = (1 << 4),
        BIT_5 = (1 << 5),
        BIT_6 = (1 << 6),
        BIT_7 = (1 << 7),
        BIT_8 = (1 << 8),
        BIT_9 = (1 << 9),
        BIT_10 = (1 << 10),
        BIT_11 = (1 << 11),
        BIT_12 = (1 << 12),
        BIT_13 = (1 << 13),
        BIT_14 = (1 << 14),
        BIT_15 = (1 << 15),
        BIT_16 = (1 << 16),
        BIT_17 = (1 << 17),
        BIT_18 = (1 << 18),
        BIT_19 = (1 << 19),
        BIT_20 = (1 << 20),
        BIT_21 = (1 << 21),
        BIT_22 = (1 << 22),
        BIT_23 = (1 << 23),
        BIT_24 = (1 << 24),
        BIT_25 = (1 << 25),
        BIT_26 = (1 << 26),
        BIT_27 = (1 << 27),
        BIT_28 = (1 << 28),
        BIT_29 = (1 << 29),
        BIT_30 = (1 << 30),
        BIT_31 = (1 << 31)
};

#define RsvdMask	0x3fffc000

struct TxDesc {
        u32 opts1;
        u32 opts2;
        u64 addr;
};

struct RxDesc {
        u32 opts1;
        u32 opts2;
        u64 addr;
};

struct ring_info {
        struct sk_buff	*skb;
        u32		len;
        u8		__pad[sizeof(void *) - sizeof(u32)];
};

enum wol_capability {
        WOL_DISABLED = 0,
        WOL_ENABLED = 1
};

struct pci_resource {
        u8	cmd;
        u8	cls;
        u16	io_base_h;
        u16	io_base_l;
        u16	mem_base_h;
        u16	mem_base_l;
        u8	ilr;
        u16	resv_0x20_h;
        u16	resv_0x20_l;
        u16	resv_0x24_h;
        u16	resv_0x24_l;
};

/* Flow Control Settings */
enum rtl8169_fc_mode {
        rtl8169_fc_none = 0,
        rtl8169_fc_rx_pause,
        rtl8169_fc_tx_pause,
        rtl8169_fc_full,
        rtl8169_fc_default
};

struct rtl8169_private {
        void __iomem *mmio_addr;	/* memory map physical address */
        struct pci_dev *pci_dev;	/* Index of PCI device */
        struct net_device *dev;
#ifdef CONFIG_R8169_NAPI
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
        struct napi_struct napi;
#endif
#endif
        struct net_device_stats stats;	/* statistics of net device */
        spinlock_t lock;		/* spin lock flag */
        u32 msg_enable;
        int max_jumbo_frame_size;
        int chipset;
        int mcfg;
        int pcfg;
        u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */
        u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */
        u32 dirty_rx;
        u32 dirty_tx;
        struct TxDesc *TxDescArray;	/* 256-aligned Tx descriptor ring */
        struct RxDesc *RxDescArray;	/* 256-aligned Rx descriptor ring */
        dma_addr_t TxPhyAddr;
        dma_addr_t RxPhyAddr;
        struct sk_buff *Rx_skbuff[NUM_RX_DESC];	/* Rx data buffers */
        struct ring_info tx_skb[NUM_TX_DESC];	/* Tx data buffers */
        unsigned align;
        unsigned rx_buf_sz;
        struct timer_list link_timer;
        struct timer_list esd_timer;
        struct pci_resource pci_cfg_space;
        unsigned int esd_flag;
        unsigned int pci_cfg_is_read;
        u16 cp_cmd;
        u16 intr_mask;
        int phy_auto_nego_reg;
        int phy_1000_ctrl_reg;
        u8 org_mac_addr[NODE_ADDRESS_SIZE];

#ifdef CONFIG_R8169_VLAN
        struct vlan_group *vlgrp;
#endif
        u8 autoneg;
        u8 duplex;
        u32 speed;
        u32 advertising;
        enum rtl8169_fc_mode fcpause;

        int (*set_speed)(struct net_device *, u8 autoneg, u32 speed, u8 duplex, u32 adv);
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
        void (*get_settings)(struct net_device *, struct ethtool_cmd *);
#else
        void (*get_settings)(struct net_device *, struct ethtool_link_ksettings *);
#endif
        void (*phy_reset_enable)(struct net_device *);
        unsigned int (*phy_reset_pending)(struct net_device *);
        unsigned int (*link_ok)(struct net_device *);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
        struct work_struct task;
#else
        struct delayed_work task;
#endif
        unsigned wol_enabled;
        unsigned features;

        u8 UseSwPaddingShortPkt;

        u8 random_mac;
};

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34)
#define netdev_mc_count(dev) ((dev)->mc_count)
#define netdev_mc_empty(dev) (netdev_mc_count(dev) == 0)
#endif

#define LSO_32K 32000
#define LSO_64K 64000

#define NIC_MIN_PHYS_BUF_COUNT          (2)
#define NIC_MAX_PHYS_BUF_COUNT_LSO_64K  (24)
#define NIC_MAX_PHYS_BUF_COUNT_LSO2     (16*4)

#define MSS_MAX                         0x07ffu /* MSS value */