1

/*

     2

 * r8169.c: RealTek 8169/8168/8101 ethernet driver.

     3

 *

     4

 * Copyright (c) 2002 ShuChen <shuchen@realtek.com.tw>

     5

 * Copyright (c) 2003 - 2007 Francois Romieu <romieu@fr.zoreil.com>

     6

 * Copyright (c) a lot of people too. Please respect their work.

     7

 *

     8

 * See MAINTAINERS file for support contact information.

     9

 */

    10

    11

#include <linux/module.h>

    12

#include <linux/moduleparam.h>

    13

#include <linux/pci.h>

    14

#include <linux/netdevice.h>

    15

#include <linux/etherdevice.h>

    16

#include <linux/delay.h>

    17

#include <linux/ethtool.h>

    18

#include <linux/mii.h>

    19

#include <linux/if_vlan.h>

    20

#include <linux/crc32.h>

    21

#include <linux/in.h>

    22

#include <linux/ip.h>

    23

#include <linux/tcp.h>

    24

#include <linux/init.h>

    25

#include <linux/dma-mapping.h>

    26

#include <linux/pm_runtime.h>

    27

    28

#include <asm/system.h>

    29

#include <asm/io.h>

    30

#include <asm/irq.h>

    31

    32

#define RTL8169_VERSION "2.3LK-NAPI"

    33

#define MODULENAME "r8169"

    34

#define PFX MODULENAME ": "

    35

    36

#ifdef RTL8169_DEBUG

    37

#define assert(expr) \

    38

	if (!(expr)) {					\

    39

		printk( "Assertion failed! %s,%s,%s,line=%d\n",	\

    40

		#expr,__FILE__,__func__,__LINE__);		\

    41

	}

    42

#define dprintk(fmt, args...) \

    43

	do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)

    44

#else

    45

#define assert(expr) do {} while (0)

    46

#define dprintk(fmt, args...)	do {} while (0)

    47

#endif /* RTL8169_DEBUG */

    48

    49

#define R8169_MSG_DEFAULT \

    50

	(NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN)

    51

    52

#define TX_BUFFS_AVAIL(tp) \

    53

	(tp->dirty_tx + NUM_TX_DESC - tp->cur_tx - 1)

    54

    55

/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).

    56

   The RTL chips use a 64 element hash table based on the Ethernet CRC. */

    57

static const int multicast_filter_limit = 32;

    58

    59

/* MAC address length */

    60

#define MAC_ADDR_LEN	6

    61

    62

#define MAX_READ_REQUEST_SHIFT	12

    63

#define RX_FIFO_THRESH	7	/* 7 means NO threshold, Rx buffer level before first PCI xfer. */

    64

#define RX_DMA_BURST	6	/* Maximum PCI burst, '6' is 1024 */

    65

#define TX_DMA_BURST	6	/* Maximum PCI burst, '6' is 1024 */

    66

#define EarlyTxThld	0x3F	/* 0x3F means NO early transmit */

    67

#define SafeMtu		0x1c20	/* ... actually life sucks beyond ~7k */

    68

#define InterFrameGap	0x03	/* 3 means InterFrameGap = the shortest one */

    69

    70

#define R8169_REGS_SIZE		256

    71

#define R8169_NAPI_WEIGHT	64

    72

#define NUM_TX_DESC	64	/* Number of Tx descriptor registers */

    73

#define NUM_RX_DESC	256	/* Number of Rx descriptor registers */

    74

#define RX_BUF_SIZE	1536	/* Rx Buffer size */

    75

#define R8169_TX_RING_BYTES	(NUM_TX_DESC * sizeof(struct TxDesc))

    76

#define R8169_RX_RING_BYTES	(NUM_RX_DESC * sizeof(struct RxDesc))

    77

    78

#define RTL8169_TX_TIMEOUT	(6*HZ)

    79

#define RTL8169_PHY_TIMEOUT	(10*HZ)

    80

    81

#define RTL_EEPROM_SIG		cpu_to_le32(0x8129)

    82

#define RTL_EEPROM_SIG_MASK	cpu_to_le32(0xffff)

    83

#define RTL_EEPROM_SIG_ADDR	0x0000

    84

    85

/* write/read MMIO register */

    86

#define RTL_W8(reg, val8)	writeb ((val8), ioaddr + (reg))

    87

#define RTL_W16(reg, val16)	writew ((val16), ioaddr + (reg))

    88

#define RTL_W32(reg, val32)	writel ((val32), ioaddr + (reg))

    89

#define RTL_R8(reg)		readb (ioaddr + (reg))

    90

#define RTL_R16(reg)		readw (ioaddr + (reg))

    91

#define RTL_R32(reg)		readl (ioaddr + (reg))

    92

    93

enum mac_version {

    94

	RTL_GIGA_MAC_NONE   = 0x00,

    95

	RTL_GIGA_MAC_VER_01 = 0x01, // 8169

    96

	RTL_GIGA_MAC_VER_02 = 0x02, // 8169S

    97

	RTL_GIGA_MAC_VER_03 = 0x03, // 8110S

    98

	RTL_GIGA_MAC_VER_04 = 0x04, // 8169SB

    99

	RTL_GIGA_MAC_VER_05 = 0x05, // 8110SCd

   100

	RTL_GIGA_MAC_VER_06 = 0x06, // 8110SCe

   101

	RTL_GIGA_MAC_VER_07 = 0x07, // 8102e

   102

	RTL_GIGA_MAC_VER_08 = 0x08, // 8102e

   103

	RTL_GIGA_MAC_VER_09 = 0x09, // 8102e

   104

	RTL_GIGA_MAC_VER_10 = 0x0a, // 8101e

   105

	RTL_GIGA_MAC_VER_11 = 0x0b, // 8168Bb

   106

	RTL_GIGA_MAC_VER_12 = 0x0c, // 8168Be

   107

	RTL_GIGA_MAC_VER_13 = 0x0d, // 8101Eb

   108

	RTL_GIGA_MAC_VER_14 = 0x0e, // 8101 ?

   109

	RTL_GIGA_MAC_VER_15 = 0x0f, // 8101 ?

   110

	RTL_GIGA_MAC_VER_16 = 0x11, // 8101Ec

   111

	RTL_GIGA_MAC_VER_17 = 0x10, // 8168Bf

   112

	RTL_GIGA_MAC_VER_18 = 0x12, // 8168CP

   113

	RTL_GIGA_MAC_VER_19 = 0x13, // 8168C

   114

	RTL_GIGA_MAC_VER_20 = 0x14, // 8168C

   115

	RTL_GIGA_MAC_VER_21 = 0x15, // 8168C

   116

	RTL_GIGA_MAC_VER_22 = 0x16, // 8168C

   117

	RTL_GIGA_MAC_VER_23 = 0x17, // 8168CP

   118

	RTL_GIGA_MAC_VER_24 = 0x18, // 8168CP

   119

	RTL_GIGA_MAC_VER_25 = 0x19, // 8168D

   120

	RTL_GIGA_MAC_VER_26 = 0x1a, // 8168D

   121

	RTL_GIGA_MAC_VER_27 = 0x1b  // 8168DP

   122

};

   123

   124

#define _R(NAME,MAC,MASK) \

   125

	{ .name = NAME, .mac_version = MAC, .RxConfigMask = MASK }

   126

   127

static const struct {

   128

	const char *name;

   129

	u8 mac_version;

   130

	u32 RxConfigMask;	/* Clears the bits supported by this chip */

   131

} rtl_chip_info[] = {

   132

	_R("RTL8169",		RTL_GIGA_MAC_VER_01, 0xff7e1880), // 8169

   133

	_R("RTL8169s",		RTL_GIGA_MAC_VER_02, 0xff7e1880), // 8169S

   134

	_R("RTL8110s",		RTL_GIGA_MAC_VER_03, 0xff7e1880), // 8110S

   135

	_R("RTL8169sb/8110sb",	RTL_GIGA_MAC_VER_04, 0xff7e1880), // 8169SB

   136

	_R("RTL8169sc/8110sc",	RTL_GIGA_MAC_VER_05, 0xff7e1880), // 8110SCd

   137

	_R("RTL8169sc/8110sc",	RTL_GIGA_MAC_VER_06, 0xff7e1880), // 8110SCe

   138

	_R("RTL8102e",		RTL_GIGA_MAC_VER_07, 0xff7e1880), // PCI-E

   139

	_R("RTL8102e",		RTL_GIGA_MAC_VER_08, 0xff7e1880), // PCI-E

   140

	_R("RTL8102e",		RTL_GIGA_MAC_VER_09, 0xff7e1880), // PCI-E

   141

	_R("RTL8101e",		RTL_GIGA_MAC_VER_10, 0xff7e1880), // PCI-E

   142

	_R("RTL8168b/8111b",	RTL_GIGA_MAC_VER_11, 0xff7e1880), // PCI-E

   143

	_R("RTL8168b/8111b",	RTL_GIGA_MAC_VER_12, 0xff7e1880), // PCI-E

   144

	_R("RTL8101e",		RTL_GIGA_MAC_VER_13, 0xff7e1880), // PCI-E 8139

   145

	_R("RTL8100e",		RTL_GIGA_MAC_VER_14, 0xff7e1880), // PCI-E 8139

   146

	_R("RTL8100e",		RTL_GIGA_MAC_VER_15, 0xff7e1880), // PCI-E 8139

   147

	_R("RTL8168b/8111b",	RTL_GIGA_MAC_VER_17, 0xff7e1880), // PCI-E

   148

	_R("RTL8101e",		RTL_GIGA_MAC_VER_16, 0xff7e1880), // PCI-E

   149

	_R("RTL8168cp/8111cp",	RTL_GIGA_MAC_VER_18, 0xff7e1880), // PCI-E

   150

	_R("RTL8168c/8111c",	RTL_GIGA_MAC_VER_19, 0xff7e1880), // PCI-E

   151

	_R("RTL8168c/8111c",	RTL_GIGA_MAC_VER_20, 0xff7e1880), // PCI-E

   152

	_R("RTL8168c/8111c",	RTL_GIGA_MAC_VER_21, 0xff7e1880), // PCI-E

   153

	_R("RTL8168c/8111c",	RTL_GIGA_MAC_VER_22, 0xff7e1880), // PCI-E

   154

	_R("RTL8168cp/8111cp",	RTL_GIGA_MAC_VER_23, 0xff7e1880), // PCI-E

   155

	_R("RTL8168cp/8111cp",	RTL_GIGA_MAC_VER_24, 0xff7e1880), // PCI-E

   156

	_R("RTL8168d/8111d",	RTL_GIGA_MAC_VER_25, 0xff7e1880), // PCI-E

   157

	_R("RTL8168d/8111d",	RTL_GIGA_MAC_VER_26, 0xff7e1880), // PCI-E

   158

	_R("RTL8168dp/8111dp",	RTL_GIGA_MAC_VER_27, 0xff7e1880)  // PCI-E

   159

};

   160

#undef _R

   161

   162

enum cfg_version {

   163

	RTL_CFG_0 = 0x00,

   164

	RTL_CFG_1,

   165

	RTL_CFG_2

   166

};

   167

   168

static void rtl_hw_start_8169(struct net_device *);

   169

static void rtl_hw_start_8168(struct net_device *);

   170

static void rtl_hw_start_8101(struct net_device *);

   171

   172

static DEFINE_PCI_DEVICE_TABLE(rtl8169_pci_tbl) = {

   173

	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8129), 0, 0, RTL_CFG_0 },

   174

	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8136), 0, 0, RTL_CFG_2 },

   175

	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8167), 0, 0, RTL_CFG_0 },

   176

	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8168), 0, 0, RTL_CFG_1 },

   177

	{ PCI_DEVICE(PCI_VENDOR_ID_REALTEK,	0x8169), 0, 0, RTL_CFG_0 },

   178

	{ PCI_DEVICE(PCI_VENDOR_ID_DLINK,	0x4300), 0, 0, RTL_CFG_0 },

   179

	{ PCI_DEVICE(PCI_VENDOR_ID_AT,		0xc107), 0, 0, RTL_CFG_0 },

   180

	{ PCI_DEVICE(0x16ec,			0x0116), 0, 0, RTL_CFG_0 },

   181

	{ PCI_VENDOR_ID_LINKSYS,		0x1032,

   182

		PCI_ANY_ID, 0x0024, 0, 0, RTL_CFG_0 },

   183

	{ 0x0001,				0x8168,

   184

		PCI_ANY_ID, 0x2410, 0, 0, RTL_CFG_2 },

   185

	{0,},

   186

};

   187

   188

MODULE_DEVICE_TABLE(pci, rtl8169_pci_tbl);

   189

   190

/*

   191

 * we set our copybreak very high so that we don't have

   192

 * to allocate 16k frames all the time (see note in

   193

 * rtl8169_open()

   194

 */

   195

static int rx_copybreak = 16383;

   196

static int use_dac;

   197

static struct {

   198

	u32 msg_enable;

   199

} debug = { -1 };

   200

   201

enum rtl_registers {

   202

	MAC0		= 0,	/* Ethernet hardware address. */

   203

	MAC4		= 4,

   204

	MAR0		= 8,	/* Multicast filter. */

   205

	CounterAddrLow		= 0x10,

   206

	CounterAddrHigh		= 0x14,

   207

	TxDescStartAddrLow	= 0x20,

   208

	TxDescStartAddrHigh	= 0x24,

   209

	TxHDescStartAddrLow	= 0x28,

   210

	TxHDescStartAddrHigh	= 0x2c,

   211

	FLASH		= 0x30,

   212

	ERSR		= 0x36,

   213

	ChipCmd		= 0x37,

   214

	TxPoll		= 0x38,

   215

	IntrMask	= 0x3c,

   216

	IntrStatus	= 0x3e,

   217

	TxConfig	= 0x40,

   218

	RxConfig	= 0x44,

   219

	RxMissed	= 0x4c,

   220

	Cfg9346		= 0x50,

   221

	Config0		= 0x51,

   222

	Config1		= 0x52,

   223

	Config2		= 0x53,

   224

	Config3		= 0x54,

   225

	Config4		= 0x55,

   226

	Config5		= 0x56,

   227

	MultiIntr	= 0x5c,

   228

	PHYAR		= 0x60,

   229

	PHYstatus	= 0x6c,

   230

	RxMaxSize	= 0xda,

   231

	CPlusCmd	= 0xe0,

   232

	IntrMitigate	= 0xe2,

   233

	RxDescAddrLow	= 0xe4,

   234

	RxDescAddrHigh	= 0xe8,

   235

	EarlyTxThres	= 0xec,

   236

	FuncEvent	= 0xf0,

   237

	FuncEventMask	= 0xf4,

   238

	FuncPresetState	= 0xf8,

   239

	FuncForceEvent	= 0xfc,

   240

};

   241

   242

enum rtl8110_registers {

   243

	TBICSR			= 0x64,

   244

	TBI_ANAR		= 0x68,

   245

	TBI_LPAR		= 0x6a,

   246

};

   247

   248

enum rtl8168_8101_registers {

   249

	CSIDR			= 0x64,

   250

	CSIAR			= 0x68,

   251

#define	CSIAR_FLAG			0x80000000

   252

#define	CSIAR_WRITE_CMD			0x80000000

   253

#define	CSIAR_BYTE_ENABLE		0x0f

   254

#define	CSIAR_BYTE_ENABLE_SHIFT		12

   255

#define	CSIAR_ADDR_MASK			0x0fff

   256

   257

	EPHYAR			= 0x80,

   258

#define	EPHYAR_FLAG			0x80000000

   259

#define	EPHYAR_WRITE_CMD		0x80000000

   260

#define	EPHYAR_REG_MASK			0x1f

   261

#define	EPHYAR_REG_SHIFT		16

   262

#define	EPHYAR_DATA_MASK		0xffff

   263

	DBG_REG			= 0xd1,

   264

#define	FIX_NAK_1			(1 << 4)

   265

#define	FIX_NAK_2			(1 << 3)

   266

	EFUSEAR			= 0xdc,

   267

#define	EFUSEAR_FLAG			0x80000000

   268

#define	EFUSEAR_WRITE_CMD		0x80000000

   269

#define	EFUSEAR_READ_CMD		0x00000000

   270

#define	EFUSEAR_REG_MASK		0x03ff

   271

#define	EFUSEAR_REG_SHIFT		8

   272

#define	EFUSEAR_DATA_MASK		0xff

   273

};

   274

   275

enum rtl_register_content {

   276

	/* InterruptStatusBits */

   277

	SYSErr		= 0x8000,

   278

	PCSTimeout	= 0x4000,

   279

	SWInt		= 0x0100,

   280

	TxDescUnavail	= 0x0080,

   281

	RxFIFOOver	= 0x0040,

   282

	LinkChg		= 0x0020,

   283

	RxOverflow	= 0x0010,

   284

	TxErr		= 0x0008,

   285

	TxOK		= 0x0004,

   286

	RxErr		= 0x0002,

   287

	RxOK		= 0x0001,

   288

   289

	/* RxStatusDesc */

   290

	RxFOVF	= (1 << 23),

   291

	RxRWT	= (1 << 22),

   292

	RxRES	= (1 << 21),

   293

	RxRUNT	= (1 << 20),

   294

	RxCRC	= (1 << 19),

   295

   296

	/* ChipCmdBits */

   297

	CmdReset	= 0x10,

   298

	CmdRxEnb	= 0x08,

   299

	CmdTxEnb	= 0x04,

   300

	RxBufEmpty	= 0x01,

   301

   302

	/* TXPoll register p.5 */

   303

	HPQ		= 0x80,		/* Poll cmd on the high prio queue */

   304

	NPQ		= 0x40,		/* Poll cmd on the low prio queue */

   305

	FSWInt		= 0x01,		/* Forced software interrupt */

   306

   307

	/* Cfg9346Bits */

   308

	Cfg9346_Lock	= 0x00,

   309

	Cfg9346_Unlock	= 0xc0,

   310

   311

	/* rx_mode_bits */

   312

	AcceptErr	= 0x20,

   313

	AcceptRunt	= 0x10,

   314

	AcceptBroadcast	= 0x08,

   315

	AcceptMulticast	= 0x04,

   316

	AcceptMyPhys	= 0x02,

   317

	AcceptAllPhys	= 0x01,

   318

   319

	/* RxConfigBits */

   320

	RxCfgFIFOShift	= 13,

   321

	RxCfgDMAShift	=  8,

   322

   323

	/* TxConfigBits */

   324

	TxInterFrameGapShift = 24,

   325

	TxDMAShift = 8,	/* DMA burst value (0-7) is shift this many bits */

   326

   327

	/* Config1 register p.24 */

   328

	LEDS1		= (1 << 7),

   329

	LEDS0		= (1 << 6),

   330

	MSIEnable	= (1 << 5),	/* Enable Message Signaled Interrupt */

   331

	Speed_down	= (1 << 4),

   332

	MEMMAP		= (1 << 3),

   333

	IOMAP		= (1 << 2),

   334

	VPD		= (1 << 1),

   335

	PMEnable	= (1 << 0),	/* Power Management Enable */

   336

   337

	/* Config2 register p. 25 */

   338

	PCI_Clock_66MHz = 0x01,

   339

	PCI_Clock_33MHz = 0x00,

   340

   341

	/* Config3 register p.25 */

   342

	MagicPacket	= (1 << 5),	/* Wake up when receives a Magic Packet */

   343

	LinkUp		= (1 << 4),	/* Wake up when the cable connection is re-established */

   344

	Beacon_en	= (1 << 0),	/* 8168 only. Reserved in the 8168b */

   345

   346

	/* Config5 register p.27 */

   347

	BWF		= (1 << 6),	/* Accept Broadcast wakeup frame */

   348

	MWF		= (1 << 5),	/* Accept Multicast wakeup frame */

   349

	UWF		= (1 << 4),	/* Accept Unicast wakeup frame */

   350

	LanWake		= (1 << 1),	/* LanWake enable/disable */

   351

	PMEStatus	= (1 << 0),	/* PME status can be reset by PCI RST# */

   352

   353

	/* TBICSR p.28 */

   354

	TBIReset	= 0x80000000,

   355

	TBILoopback	= 0x40000000,

   356

	TBINwEnable	= 0x20000000,

   357

	TBINwRestart	= 0x10000000,

   358

	TBILinkOk	= 0x02000000,

   359

	TBINwComplete	= 0x01000000,

   360

   361

	/* CPlusCmd p.31 */

   362

	EnableBist	= (1 << 15),	// 8168 8101

   363

	Mac_dbgo_oe	= (1 << 14),	// 8168 8101

   364

	Normal_mode	= (1 << 13),	// unused

   365

	Force_half_dup	= (1 << 12),	// 8168 8101

   366

	Force_rxflow_en	= (1 << 11),	// 8168 8101

   367

	Force_txflow_en	= (1 << 10),	// 8168 8101

   368

	Cxpl_dbg_sel	= (1 << 9),	// 8168 8101

   369

	ASF		= (1 << 8),	// 8168 8101

   370

	PktCntrDisable	= (1 << 7),	// 8168 8101

   371

	Mac_dbgo_sel	= 0x001c,	// 8168

   372

	RxVlan		= (1 << 6),

   373

	RxChkSum	= (1 << 5),

   374

	PCIDAC		= (1 << 4),

   375

	PCIMulRW	= (1 << 3),

   376

	INTT_0		= 0x0000,	// 8168

   377

	INTT_1		= 0x0001,	// 8168

   378

	INTT_2		= 0x0002,	// 8168

   379

	INTT_3		= 0x0003,	// 8168

   380

   381

	/* rtl8169_PHYstatus */

   382

	TBI_Enable	= 0x80,

   383

	TxFlowCtrl	= 0x40,

   384

	RxFlowCtrl	= 0x20,

   385

	_1000bpsF	= 0x10,

   386

	_100bps		= 0x08,

   387

	_10bps		= 0x04,

   388

	LinkStatus	= 0x02,

   389

	FullDup		= 0x01,

   390

   391

	/* _TBICSRBit */

   392

	TBILinkOK	= 0x02000000,

   393

   394

	/* DumpCounterCommand */

   395

	CounterDump	= 0x8,

   396

};

   397

   398

enum desc_status_bit {

   399

	DescOwn		= (1 << 31), /* Descriptor is owned by NIC */

   400

	RingEnd		= (1 << 30), /* End of descriptor ring */

   401

	FirstFrag	= (1 << 29), /* First segment of a packet */

   402

	LastFrag	= (1 << 28), /* Final segment of a packet */

   403

   404

	/* Tx private */

   405

	LargeSend	= (1 << 27), /* TCP Large Send Offload (TSO) */

   406

	MSSShift	= 16,        /* MSS value position */

   407

	MSSMask		= 0xfff,     /* MSS value + LargeSend bit: 12 bits */

   408

	IPCS		= (1 << 18), /* Calculate IP checksum */

   409

	UDPCS		= (1 << 17), /* Calculate UDP/IP checksum */

   410

	TCPCS		= (1 << 16), /* Calculate TCP/IP checksum */

   411

	TxVlanTag	= (1 << 17), /* Add VLAN tag */

   412

   413

	/* Rx private */

   414

	PID1		= (1 << 18), /* Protocol ID bit 1/2 */

   415

	PID0		= (1 << 17), /* Protocol ID bit 2/2 */

   416

   417

#define RxProtoUDP	(PID1)

   418

#define RxProtoTCP	(PID0)

   419

#define RxProtoIP	(PID1 | PID0)

   420

#define RxProtoMask	RxProtoIP

   421

   422

	IPFail		= (1 << 16), /* IP checksum failed */

   423

	UDPFail		= (1 << 15), /* UDP/IP checksum failed */

   424

	TCPFail		= (1 << 14), /* TCP/IP checksum failed */

   425

	RxVlanTag	= (1 << 16), /* VLAN tag available */

   426

};

   427

   428

#define RsvdMask	0x3fffc000

   429

   430

struct TxDesc {

   431

	__le32 opts1;

   432

	__le32 opts2;

   433

	__le64 addr;

   434

};

   435

   436

struct RxDesc {

   437

	__le32 opts1;

   438

	__le32 opts2;

   439

	__le64 addr;

   440

};

   441

   442

struct ring_info {

   443

	struct sk_buff	*skb;

   444

	u32		len;

   445

	u8		__pad[sizeof(void *) - sizeof(u32)];

   446

};

   447

   448

enum features {

   449

	RTL_FEATURE_WOL		= (1 << 0),

   450

	RTL_FEATURE_MSI		= (1 << 1),

   451

	RTL_FEATURE_GMII	= (1 << 2),

   452

};

   453

   454

struct rtl8169_counters {

   455

	__le64	tx_packets;

   456

	__le64	rx_packets;

   457

	__le64	tx_errors;

   458

	__le32	rx_errors;

   459

	__le16	rx_missed;

   460

	__le16	align_errors;

   461

	__le32	tx_one_collision;

   462

	__le32	tx_multi_collision;

   463

	__le64	rx_unicast;

   464

	__le64	rx_broadcast;

   465

	__le32	rx_multicast;

   466

	__le16	tx_aborted;

   467

	__le16	tx_underun;

   468

};

   469

   470

struct rtl8169_private {

   471

	void __iomem *mmio_addr;	/* memory map physical address */

   472

	struct pci_dev *pci_dev;	/* Index of PCI device */

   473

	struct net_device *dev;

   474

	struct napi_struct napi;

   475

	spinlock_t lock;		/* spin lock flag */

   476

	u32 msg_enable;

   477

	int chipset;

   478

	int mac_version;

   479

	u32 cur_rx; /* Index into the Rx descriptor buffer of next Rx pkt. */

   480

	u32 cur_tx; /* Index into the Tx descriptor buffer of next Rx pkt. */

   481

	u32 dirty_rx;

   482

	u32 dirty_tx;

   483

	struct TxDesc *TxDescArray;	/* 256-aligned Tx descriptor ring */

   484

	struct RxDesc *RxDescArray;	/* 256-aligned Rx descriptor ring */

   485

	dma_addr_t TxPhyAddr;

   486

	dma_addr_t RxPhyAddr;

   487

	struct sk_buff *Rx_skbuff[NUM_RX_DESC];	/* Rx data buffers */

   488

	struct ring_info tx_skb[NUM_TX_DESC];	/* Tx data buffers */

   489

	unsigned align;

   490

	unsigned rx_buf_sz;

   491

	struct timer_list timer;

   492

	u16 cp_cmd;

   493

	u16 intr_event;

   494

	u16 napi_event;

   495

	u16 intr_mask;

   496

	int phy_1000_ctrl_reg;

   497

#ifdef CONFIG_R8169_VLAN

   498

	struct vlan_group *vlgrp;

   499

#endif

   500

	int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);

   501

	int (*get_settings)(struct net_device *, struct ethtool_cmd *);

   502

	void (*phy_reset_enable)(void __iomem *);

   503

	void (*hw_start)(struct net_device *);

   504

	unsigned int (*phy_reset_pending)(void __iomem *);

   505

	unsigned int (*link_ok)(void __iomem *);

   506

	int (*do_ioctl)(struct rtl8169_private *tp, struct mii_ioctl_data *data, int cmd);

   507

	int pcie_cap;

   508

	struct delayed_work task;

   509

	unsigned features;

   510

   511

	struct mii_if_info mii;

   512

	struct rtl8169_counters counters;

   513

	u32 saved_wolopts;

   514

};

   515

   516

MODULE_AUTHOR("Realtek and the Linux r8169 crew <netdev@vger.kernel.org>");

   517

MODULE_DESCRIPTION("RealTek RTL-8169 Gigabit Ethernet driver");

   518

module_param(rx_copybreak, int, 0);

   519

MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy-only-tiny-frames");

   520

module_param(use_dac, int, 0);

   521

MODULE_PARM_DESC(use_dac, "Enable PCI DAC. Unsafe on 32 bit PCI slot.");

   522

module_param_named(debug, debug.msg_enable, int, 0);

   523

MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 16=all)");

   524

MODULE_LICENSE("GPL");

   525

MODULE_VERSION(RTL8169_VERSION);

   526

   527

static int rtl8169_open(struct net_device *dev);

   528

static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,

   529

				      struct net_device *dev);

   530

static irqreturn_t rtl8169_interrupt(int irq, void *dev_instance);