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

     2

     3

  Intel PRO/1000 Linux driver

     4

  Copyright(c) 1999 - 2008 Intel Corporation.

     5

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

     7

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

     8

  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

    13

  more details.

    14

    15

  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.

    18

    19

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

    20

  the file called "COPYING".

    21

    22

  Contact Information:

    23

  Linux NICS <linux.nics@intel.com>

    24

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

    25

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

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    27

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

    28

    29

/* ethtool support for e1000 */

    30

    31

#include <linux/netdevice.h>

    32

#include <linux/ethtool.h>

    33

#include <linux/pci.h>

    34

#include <linux/delay.h>

    35

    36

#include "e1000-2.6.32-ethercat.h"

    37

    38

struct e1000_stats {

    39

	char stat_string[ETH_GSTRING_LEN];

    40

	int sizeof_stat;

    41

	int stat_offset;

    42

};

    43

    44

#define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \

    45

		      offsetof(struct e1000_adapter, m)

    46

static const struct e1000_stats e1000_gstrings_stats[] = {

    47

	{ "rx_packets", E1000_STAT(stats.gprc) },

    48

	{ "tx_packets", E1000_STAT(stats.gptc) },

    49

	{ "rx_bytes", E1000_STAT(stats.gorc) },

    50

	{ "tx_bytes", E1000_STAT(stats.gotc) },

    51

	{ "rx_broadcast", E1000_STAT(stats.bprc) },

    52

	{ "tx_broadcast", E1000_STAT(stats.bptc) },

    53

	{ "rx_multicast", E1000_STAT(stats.mprc) },

    54

	{ "tx_multicast", E1000_STAT(stats.mptc) },

    55

	{ "rx_errors", E1000_STAT(net_stats.rx_errors) },

    56

	{ "tx_errors", E1000_STAT(net_stats.tx_errors) },

    57

	{ "tx_dropped", E1000_STAT(net_stats.tx_dropped) },

    58

	{ "multicast", E1000_STAT(stats.mprc) },

    59

	{ "collisions", E1000_STAT(stats.colc) },

    60

	{ "rx_length_errors", E1000_STAT(net_stats.rx_length_errors) },

    61

	{ "rx_over_errors", E1000_STAT(net_stats.rx_over_errors) },

    62

	{ "rx_crc_errors", E1000_STAT(stats.crcerrs) },

    63

	{ "rx_frame_errors", E1000_STAT(net_stats.rx_frame_errors) },

    64

	{ "rx_no_buffer_count", E1000_STAT(stats.rnbc) },

    65

	{ "rx_missed_errors", E1000_STAT(stats.mpc) },

    66

	{ "tx_aborted_errors", E1000_STAT(stats.ecol) },

    67

	{ "tx_carrier_errors", E1000_STAT(stats.tncrs) },

    68

	{ "tx_fifo_errors", E1000_STAT(net_stats.tx_fifo_errors) },

    69

	{ "tx_heartbeat_errors", E1000_STAT(net_stats.tx_heartbeat_errors) },

    70

	{ "tx_window_errors", E1000_STAT(stats.latecol) },

    71

	{ "tx_abort_late_coll", E1000_STAT(stats.latecol) },

    72

	{ "tx_deferred_ok", E1000_STAT(stats.dc) },

    73

	{ "tx_single_coll_ok", E1000_STAT(stats.scc) },

    74

	{ "tx_multi_coll_ok", E1000_STAT(stats.mcc) },

    75

	{ "tx_timeout_count", E1000_STAT(tx_timeout_count) },

    76

	{ "tx_restart_queue", E1000_STAT(restart_queue) },

    77

	{ "rx_long_length_errors", E1000_STAT(stats.roc) },

    78

	{ "rx_short_length_errors", E1000_STAT(stats.ruc) },

    79

	{ "rx_align_errors", E1000_STAT(stats.algnerrc) },

    80

	{ "tx_tcp_seg_good", E1000_STAT(stats.tsctc) },

    81

	{ "tx_tcp_seg_failed", E1000_STAT(stats.tsctfc) },

    82

	{ "rx_flow_control_xon", E1000_STAT(stats.xonrxc) },

    83

	{ "rx_flow_control_xoff", E1000_STAT(stats.xoffrxc) },

    84

	{ "tx_flow_control_xon", E1000_STAT(stats.xontxc) },

    85

	{ "tx_flow_control_xoff", E1000_STAT(stats.xofftxc) },

    86

	{ "rx_long_byte_count", E1000_STAT(stats.gorc) },

    87

	{ "rx_csum_offload_good", E1000_STAT(hw_csum_good) },

    88

	{ "rx_csum_offload_errors", E1000_STAT(hw_csum_err) },

    89

	{ "rx_header_split", E1000_STAT(rx_hdr_split) },

    90

	{ "alloc_rx_buff_failed", E1000_STAT(alloc_rx_buff_failed) },

    91

	{ "tx_smbus", E1000_STAT(stats.mgptc) },

    92

	{ "rx_smbus", E1000_STAT(stats.mgprc) },

    93

	{ "dropped_smbus", E1000_STAT(stats.mgpdc) },

    94

	{ "rx_dma_failed", E1000_STAT(rx_dma_failed) },

    95

	{ "tx_dma_failed", E1000_STAT(tx_dma_failed) },

    96

};

    97

    98

#define E1000_GLOBAL_STATS_LEN	ARRAY_SIZE(e1000_gstrings_stats)

    99

#define E1000_STATS_LEN (E1000_GLOBAL_STATS_LEN)

   100

static const char e1000_gstrings_test[][ETH_GSTRING_LEN] = {

   101

	"Register test  (offline)", "Eeprom test    (offline)",

   102

	"Interrupt test (offline)", "Loopback test  (offline)",

   103

	"Link test   (on/offline)"

   104

};

   105

#define E1000_TEST_LEN ARRAY_SIZE(e1000_gstrings_test)

   106

   107

static int e1000_get_settings(struct net_device *netdev,

   108

			      struct ethtool_cmd *ecmd)

   109

{

   110

	struct e1000_adapter *adapter = netdev_priv(netdev);

   111

	struct e1000_hw *hw = &adapter->hw;

   112

	u32 status;

   113

   114

	if (hw->phy.media_type == e1000_media_type_copper) {

   115

   116

		ecmd->supported = (SUPPORTED_10baseT_Half |

   117

				   SUPPORTED_10baseT_Full |

   118

				   SUPPORTED_100baseT_Half |

   119

				   SUPPORTED_100baseT_Full |

   120

				   SUPPORTED_1000baseT_Full |

   121

				   SUPPORTED_Autoneg |

   122

				   SUPPORTED_TP);

   123

		if (hw->phy.type == e1000_phy_ife)

   124

			ecmd->supported &= ~SUPPORTED_1000baseT_Full;

   125

		ecmd->advertising = ADVERTISED_TP;

   126

   127

		if (hw->mac.autoneg == 1) {

   128

			ecmd->advertising |= ADVERTISED_Autoneg;

   129

			/* the e1000 autoneg seems to match ethtool nicely */

   130

			ecmd->advertising |= hw->phy.autoneg_advertised;

   131

		}

   132

   133

		ecmd->port = PORT_TP;

   134

		ecmd->phy_address = hw->phy.addr;

   135

		ecmd->transceiver = XCVR_INTERNAL;

   136

   137

	} else {

   138

		ecmd->supported   = (SUPPORTED_1000baseT_Full |

   139

				     SUPPORTED_FIBRE |

   140

				     SUPPORTED_Autoneg);

   141

   142

		ecmd->advertising = (ADVERTISED_1000baseT_Full |

   143

				     ADVERTISED_FIBRE |

   144

				     ADVERTISED_Autoneg);

   145

   146

		ecmd->port = PORT_FIBRE;

   147

		ecmd->transceiver = XCVR_EXTERNAL;

   148

	}

   149

   150

	status = er32(STATUS);

   151

	if (status & E1000_STATUS_LU) {

   152

		if (status & E1000_STATUS_SPEED_1000)

   153

			ecmd->speed = 1000;

   154

		else if (status & E1000_STATUS_SPEED_100)

   155

			ecmd->speed = 100;

   156

		else

   157

			ecmd->speed = 10;

   158

   159

		if (status & E1000_STATUS_FD)

   160

			ecmd->duplex = DUPLEX_FULL;

   161

		else

   162

			ecmd->duplex = DUPLEX_HALF;

   163

	} else {

   164

		ecmd->speed = -1;

   165

		ecmd->duplex = -1;

   166

	}

   167

   168

	ecmd->autoneg = ((hw->phy.media_type == e1000_media_type_fiber) ||

   169

			 hw->mac.autoneg) ? AUTONEG_ENABLE : AUTONEG_DISABLE;

   170

   171

	/* MDI-X => 2; MDI =>1; Invalid =>0 */

   172

	if ((hw->phy.media_type == e1000_media_type_copper) &&

   173

	    !hw->mac.get_link_status)

   174

		ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :

   175

		                                      ETH_TP_MDI;

   176

	else

   177

		ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;

   178

   179

	return 0;

   180

}

   181

   182

static u32 e1000_get_link(struct net_device *netdev)

   183

{

   184

	struct e1000_adapter *adapter = netdev_priv(netdev);

   185

   186

	return e1000_has_link(adapter);

   187

}

   188

   189

static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)

   190

{

   191

	struct e1000_mac_info *mac = &adapter->hw.mac;

   192

   193

	mac->autoneg = 0;

   194

   195

	/* Fiber NICs only allow 1000 gbps Full duplex */

   196

	if ((adapter->hw.phy.media_type == e1000_media_type_fiber) &&

   197

		spddplx != (SPEED_1000 + DUPLEX_FULL)) {

   198

		e_err("Unsupported Speed/Duplex configuration\n");

   199

		return -EINVAL;

   200

	}

   201

   202

	switch (spddplx) {

   203

	case SPEED_10 + DUPLEX_HALF:

   204

		mac->forced_speed_duplex = ADVERTISE_10_HALF;

   205

		break;

   206

	case SPEED_10 + DUPLEX_FULL:

   207

		mac->forced_speed_duplex = ADVERTISE_10_FULL;

   208

		break;

   209

	case SPEED_100 + DUPLEX_HALF:

   210

		mac->forced_speed_duplex = ADVERTISE_100_HALF;

   211

		break;

   212

	case SPEED_100 + DUPLEX_FULL:

   213

		mac->forced_speed_duplex = ADVERTISE_100_FULL;

   214

		break;

   215

	case SPEED_1000 + DUPLEX_FULL:

   216

		mac->autoneg = 1;

   217

		adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;

   218

		break;

   219

	case SPEED_1000 + DUPLEX_HALF: /* not supported */

   220

	default:

   221

		e_err("Unsupported Speed/Duplex configuration\n");

   222

		return -EINVAL;

   223

	}

   224

	return 0;

   225

}

   226

   227

static int e1000_set_settings(struct net_device *netdev,

   228

			      struct ethtool_cmd *ecmd)

   229

{

   230

	struct e1000_adapter *adapter = netdev_priv(netdev);

   231

	struct e1000_hw *hw = &adapter->hw;

   232

   233

	if (adapter->ecdev)

   234

		return -EBUSY;

   235

   236

	/*

   237

	 * When SoL/IDER sessions are active, autoneg/speed/duplex

   238

	 * cannot be changed

   239

	 */

   240

	if (e1000_check_reset_block(hw)) {

   241

		e_err("Cannot change link characteristics when SoL/IDER is "

   242

		      "active.\n");

   243

		return -EINVAL;

   244

	}

   245

   246

	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))

   247

		msleep(1);

   248

   249

	if (ecmd->autoneg == AUTONEG_ENABLE) {

   250

		hw->mac.autoneg = 1;

   251

		if (hw->phy.media_type == e1000_media_type_fiber)

   252

			hw->phy.autoneg_advertised = ADVERTISED_1000baseT_Full |

   253

						     ADVERTISED_FIBRE |

   254

						     ADVERTISED_Autoneg;

   255

		else

   256

			hw->phy.autoneg_advertised = ecmd->advertising |

   257

						     ADVERTISED_TP |

   258

						     ADVERTISED_Autoneg;

   259

		ecmd->advertising = hw->phy.autoneg_advertised;

   260

		if (adapter->fc_autoneg)

   261

			hw->fc.requested_mode = e1000_fc_default;

   262

	} else {

   263

		if (e1000_set_spd_dplx(adapter, ecmd->speed + ecmd->duplex)) {

   264

			clear_bit(__E1000_RESETTING, &adapter->state);

   265

			return -EINVAL;

   266

		}

   267

	}

   268

   269

	/* reset the link */

   270

   271

	if (netif_running(adapter->netdev)) {

   272

		e1000e_down(adapter);

   273

		e1000e_up(adapter);

   274

	} else {

   275

		e1000e_reset(adapter);

   276

	}

   277

   278

	clear_bit(__E1000_RESETTING, &adapter->state);

   279

	return 0;

   280

}

   281

   282

static void e1000_get_pauseparam(struct net_device *netdev,

   283

				 struct ethtool_pauseparam *pause)

   284

{

   285

	struct e1000_adapter *adapter = netdev_priv(netdev);

   286

	struct e1000_hw *hw = &adapter->hw;

   287

   288

	pause->autoneg =

   289

		(adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE);

   290

   291

	if (hw->fc.current_mode == e1000_fc_rx_pause) {

   292

		pause->rx_pause = 1;

   293

	} else if (hw->fc.current_mode == e1000_fc_tx_pause) {

   294

		pause->tx_pause = 1;

   295

	} else if (hw->fc.current_mode == e1000_fc_full) {

   296

		pause->rx_pause = 1;

   297

		pause->tx_pause = 1;

   298

	}

   299

}

   300

   301

static int e1000_set_pauseparam(struct net_device *netdev,

   302

				struct ethtool_pauseparam *pause)

   303

{

   304

	struct e1000_adapter *adapter = netdev_priv(netdev);

   305

	struct e1000_hw *hw = &adapter->hw;

   306

	int retval = 0;

   307

   308

	if (adapter->ecdev)

   309

		return -EBUSY;

   310

   311

	adapter->fc_autoneg = pause->autoneg;

   312

   313

	while (test_and_set_bit(__E1000_RESETTING, &adapter->state))

   314

		msleep(1);

   315

   316

	if (adapter->fc_autoneg == AUTONEG_ENABLE) {

   317

		hw->fc.requested_mode = e1000_fc_default;

   318

		if (netif_running(adapter->netdev)) {

   319

			e1000e_down(adapter);

   320

			e1000e_up(adapter);

   321

		} else {

   322

			e1000e_reset(adapter);

   323

		}

   324

	} else {

   325

		if (pause->rx_pause && pause->tx_pause)

   326

			hw->fc.requested_mode = e1000_fc_full;

   327

		else if (pause->rx_pause && !pause->tx_pause)

   328

			hw->fc.requested_mode = e1000_fc_rx_pause;

   329

		else if (!pause->rx_pause && pause->tx_pause)

   330

			hw->fc.requested_mode = e1000_fc_tx_pause;

   331

		else if (!pause->rx_pause && !pause->tx_pause)

   332

			hw->fc.requested_mode = e1000_fc_none;

   333

   334

		hw->fc.current_mode = hw->fc.requested_mode;

   335

   336

		if (hw->phy.media_type == e1000_media_type_fiber) {

   337

			retval = hw->mac.ops.setup_link(hw);

   338

			/* implicit goto out */

   339

		} else {

   340

			retval = e1000e_force_mac_fc(hw);

   341

			if (retval)

   342

				goto out;

   343

			e1000e_set_fc_watermarks(hw);

   344

		}

   345

	}

   346

   347

out:

   348

	clear_bit(__E1000_RESETTING, &adapter->state);

   349

	return retval;

   350

}

   351

   352

static u32 e1000_get_rx_csum(struct net_device *netdev)

   353

{

   354

	struct e1000_adapter *adapter = netdev_priv(netdev);

   355

	return (adapter->flags & FLAG_RX_CSUM_ENABLED);

   356

}

   357

   358

static int e1000_set_rx_csum(struct net_device *netdev, u32 data)

   359

{

   360

	struct e1000_adapter *adapter = netdev_priv(netdev);

   361

   362

	if (data)

   363

		adapter->flags |= FLAG_RX_CSUM_ENABLED;

   364

	else

   365

		adapter->flags &= ~FLAG_RX_CSUM_ENABLED;

   366

   367

	if (netif_running(netdev))

   368

		e1000e_reinit_locked(adapter);

   369

	else

   370

		e1000e_reset(adapter);

   371

	return 0;

   372

}

   373

   374

static u32 e1000_get_tx_csum(struct net_device *netdev)

   375

{

   376

	return ((netdev->features & NETIF_F_HW_CSUM) != 0);

   377

}

   378

   379

static int e1000_set_tx_csum(struct net_device *netdev, u32 data)

   380

{

   381

	struct e1000_adapter *adapter = netdev_priv(netdev);

   382

	if (adapter->ecdev)

   383

		return -EBUSY;

   384

   385

	if (data)

   386

		netdev->features |= NETIF_F_HW_CSUM;

   387

	else

   388

		netdev->features &= ~NETIF_F_HW_CSUM;

   389

   390

	return 0;

   391

}

   392

   393

static int e1000_set_tso(struct net_device *netdev, u32 data)

   394

{

   395

	struct e1000_adapter *adapter = netdev_priv(netdev);

   396

   397

	if (data) {

   398

		netdev->features |= NETIF_F_TSO;

   399

		netdev->features |= NETIF_F_TSO6;

   400

	} else {

   401

		netdev->features &= ~NETIF_F_TSO;

   402

		netdev->features &= ~NETIF_F_TSO6;

   403

	}

   404

   405

	e_info("TSO is %s\n", data ? "Enabled" : "Disabled");

   406

	adapter->flags |= FLAG_TSO_FORCE;

   407

	return 0;

   408

}

   409

   410

static u32 e1000_get_msglevel(struct net_device *netdev)

   411

{

   412

	struct e1000_adapter *adapter = netdev_priv(netdev);

   413

	return adapter->msg_enable;

   414

}

   415

   416

static void e1000_set_msglevel(struct net_device *netdev, u32 data)

   417

{

   418

	struct e1000_adapter *adapter = netdev_priv(netdev);

   419

	adapter->msg_enable = data;

   420

}

   421

   422

static int e1000_get_regs_len(struct net_device *netdev)

   423

{

   424

#define E1000_REGS_LEN 32 /* overestimate */

   425

	return E1000_REGS_LEN * sizeof(u32);

   426

}

   427

   428

static void e1000_get_regs(struct net_device *netdev,

   429

			   struct ethtool_regs *regs, void *p)

   430

{

   431

	struct e1000_adapter *adapter = netdev_priv(netdev);

   432

	struct e1000_hw *hw = &adapter->hw;

   433

	u32 *regs_buff = p;

   434

	u16 phy_data;

   435

	u8 revision_id;

   436

   437

	memset(p, 0, E1000_REGS_LEN * sizeof(u32));

   438

   439

	pci_read_config_byte(adapter->pdev, PCI_REVISION_ID, &revision_id);

   440

   441

	regs->version = (1 << 24) | (revision_id << 16) | adapter->pdev->device;

   442

   443

	regs_buff[0]  = er32(CTRL);

   444

	regs_buff[1]  = er32(STATUS);

   445

   446

	regs_buff[2]  = er32(RCTL);

   447

	regs_buff[3]  = er32(RDLEN);

   448

	regs_buff[4]  = er32(RDH);

   449

	regs_buff[5]  = er32(RDT);

   450

	regs_buff[6]  = er32(RDTR);

   451

   452

	regs_buff[7]  = er32(TCTL);

   453

	regs_buff[8]  = er32(TDLEN);

   454

	regs_buff[9]  = er32(TDH);

   455

	regs_buff[10] = er32(TDT);

   456

	regs_buff[11] = er32(TIDV);

   457

   458

	regs_buff[12] = adapter->hw.phy.type;  /* PHY type (IGP=1, M88=0) */

   459

   460

	/* ethtool doesn't use anything past this point, so all this

   461

	 * code is likely legacy junk for apps that may or may not

   462

	 * exist */

   463

	if (hw->phy.type == e1000_phy_m88) {

   464

		e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);

   465

		regs_buff[13] = (u32)phy_data; /* cable length */

   466

		regs_buff[14] = 0;  /* Dummy (to align w/ IGP phy reg dump) */

   467

		regs_buff[15] = 0;  /* Dummy (to align w/ IGP phy reg dump) */

   468

		regs_buff[16] = 0;  /* Dummy (to align w/ IGP phy reg dump) */

   469

		e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);

   470

		regs_buff[17] = (u32)phy_data; /* extended 10bt distance */

   471

		regs_buff[18] = regs_buff[13]; /* cable polarity */

   472

		regs_buff[19] = 0;  /* Dummy (to align w/ IGP phy reg dump) */

   473

		regs_buff[20] = regs_buff[17]; /* polarity correction */

   474

		/* phy receive errors */

   475

		regs_buff[22] = adapter->phy_stats.receive_errors;

   476

		regs_buff[23] = regs_buff[13]; /* mdix mode */

   477

	}

   478

	regs_buff[21] = 0; /* was idle_errors */

   479

	e1e_rphy(hw, PHY_1000T_STATUS, &phy_data);

   480

	regs_buff[24] = (u32)phy_data;  /* phy local receiver status */

   481

	regs_buff[25] = regs_buff[24];  /* phy remote receiver status */

   482

}

   483

   484

static int e1000_get_eeprom_len(struct net_device *netdev)

   485

{

   486

	struct e1000_adapter *adapter = netdev_priv(netdev);

   487

	return adapter->hw.nvm.word_size * 2;

   488

}

   489

   490

static int e1000_get_eeprom(struct net_device *netdev,

   491

			    struct ethtool_eeprom *eeprom, u8 *bytes)

   492

{

   493

	struct e1000_adapter *adapter = netdev_priv(netdev);

   494

	struct e1000_hw *hw = &adapter->hw;

   495

	u16 *eeprom_buff;

   496

	int first_word;

   497

	int last_word;

   498

	int ret_val = 0;

   499

	u16 i;

   500

   501

	if (eeprom->len == 0)

   502

		return -EINVAL;

   503

   504

	eeprom->magic = adapter->pdev->vendor | (adapter->pdev->device << 16);

   505

   506

	first_word = eeprom->offset >> 1;

   507

	last_word = (eeprom->offset + eeprom->len - 1) >> 1;

   508

   509

	eeprom_buff = kmalloc(sizeof(u16) *

   510

			(last_word - first_word + 1), GFP_KERNEL);

   511

	if (!eeprom_buff)

   512

		return -ENOMEM;

   513

   514

	if (hw->nvm.type == e1000_nvm_eeprom_spi) {

   515

		ret_val = e1000_read_nvm(hw, first_word,

   516

					 last_word - first_word + 1,

   517

					 eeprom_buff);

   518

	} else {

   519

		for (i = 0; i < last_word - first_word + 1; i++) {

   520

			ret_val = e1000_read_nvm(hw, first_word + i, 1,

   521

						      &eeprom_buff[i]);

   522

			if (ret_val)

   523

				break;

   524

		}

   525

	}

   526

   527

	if (ret_val) {

   528

		/* a read error occurred, throw away the result */

   529

		memset(eeprom_buff, 0xff, sizeof(eeprom_buff));

   530