aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ixgb/ixgb_ethtool.c
blob: 6da890b9534cf1ae25d3c8db4932609d915b78cf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
/*******************************************************************************

  Intel PRO/10GbE Linux driver
  Copyright(c) 1999 - 2008 Intel Corporation.

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope 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, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Contact Information:
  Linux NICS <linux.nics@intel.com>
  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

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

/* ethtool support for ixgb */

#include "ixgb.h"

#include <asm/uaccess.h>

#define IXGB_ALL_RAR_ENTRIES 16

enum {NETDEV_STATS, IXGB_STATS};

struct ixgb_stats {
	char stat_string[ETH_GSTRING_LEN];
	int type;
	int sizeof_stat;
	int stat_offset;
};

#define IXGB_STAT(m)		IXGB_STATS, \
				FIELD_SIZEOF(struct ixgb_adapter, m), \
				offsetof(struct ixgb_adapter, m)
#define IXGB_NETDEV_STAT(m)	NETDEV_STATS, \
				FIELD_SIZEOF(struct net_device, m), \
				offsetof(struct net_device, m)

static struct ixgb_stats ixgb_gstrings_stats[] = {
	{"rx_packets", IXGB_NETDEV_STAT(stats.rx_packets)},
	{"tx_packets", IXGB_NETDEV_STAT(stats.tx_packets)},
	{"rx_bytes", IXGB_NETDEV_STAT(stats.rx_bytes)},
	{"tx_bytes", IXGB_NETDEV_STAT(stats.tx_bytes)},
	{"rx_errors", IXGB_NETDEV_STAT(stats.rx_errors)},
	{"tx_errors", IXGB_NETDEV_STAT(stats.tx_errors)},
	{"rx_dropped", IXGB_NETDEV_STAT(stats.rx_dropped)},
	{"tx_dropped", IXGB_NETDEV_STAT(stats.tx_dropped)},
	{"multicast", IXGB_NETDEV_STAT(stats.multicast)},
	{"collisions", IXGB_NETDEV_STAT(stats.collisions)},

/*	{ "rx_length_errors", IXGB_NETDEV_STAT(stats.rx_length_errors) },	*/
	{"rx_over_errors", IXGB_NETDEV_STAT(stats.rx_over_errors)},
	{"rx_crc_errors", IXGB_NETDEV_STAT(stats.rx_crc_errors)},
	{"rx_frame_errors", IXGB_NETDEV_STAT(stats.rx_frame_errors)},
	{"rx_no_buffer_count", IXGB_STAT(stats.rnbc)},
	{"rx_fifo_errors", IXGB_NETDEV_STAT(stats.rx_fifo_errors)},
	{"rx_missed_errors", IXGB_NETDEV_STAT(stats.rx_missed_errors)},
	{"tx_aborted_errors", IXGB_NETDEV_STAT(stats.tx_aborted_errors)},
	{"tx_carrier_errors", IXGB_NETDEV_STAT(stats.tx_carrier_errors)},
	{"tx_fifo_errors", IXGB_NETDEV_STAT(stats.tx_fifo_errors)},
	{"tx_heartbeat_errors", IXGB_NETDEV_STAT(stats.tx_heartbeat_errors)},
	{"tx_window_errors", IXGB_NETDEV_STAT(stats.tx_window_errors)},
	{"tx_deferred_ok", IXGB_STAT(stats.dc)},
	{"tx_timeout_count", IXGB_STAT(tx_timeout_count) },
	{"tx_restart_queue", IXGB_STAT(restart_queue) },
	{"rx_long_length_errors", IXGB_STAT(stats.roc)},
	{"rx_short_length_errors", IXGB_STAT(stats.ruc)},
	{"tx_tcp_seg_good", IXGB_STAT(stats.tsctc)},
	{"tx_tcp_seg_failed", IXGB_STAT(stats.tsctfc)},
	{"rx_flow_control_xon", IXGB_STAT(stats.xonrxc)},
	{"rx_flow_control_xoff", IXGB_STAT(stats.xoffrxc)},
	{"tx_flow_control_xon", IXGB_STAT(stats.xontxc)},
	{"tx_flow_control_xoff", IXGB_STAT(stats.xofftxc)},
	{"rx_csum_offload_good", IXGB_STAT(hw_csum_rx_good)},
	{"rx_csum_offload_errors", IXGB_STAT(hw_csum_rx_error)},
	{"tx_csum_offload_good", IXGB_STAT(hw_csum_tx_good)},
	{"tx_csum_offload_errors", IXGB_STAT(hw_csum_tx_error)}
};

#define IXGB_STATS_LEN	ARRAY_SIZE(ixgb_gstrings_stats)

static int
ixgb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);

	ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
	ecmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
	ecmd->port = PORT_FIBRE;
	ecmd->transceiver = XCVR_EXTERNAL;

	if (netif_carrier_ok(adapter->netdev)) {
		ethtool_cmd_speed_set(ecmd, SPEED_10000);
		ecmd->duplex = DUPLEX_FULL;
	} else {
		ethtool_cmd_speed_set(ecmd, -1);
		ecmd->duplex = -1;
	}

	ecmd->autoneg = AUTONEG_DISABLE;
	return 0;
}

static void ixgb_set_speed_duplex(struct net_device *netdev)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	/* be optimistic about our link, since we were up before */
	adapter->link_speed = 10000;
	adapter->link_duplex = FULL_DUPLEX;
	netif_carrier_on(netdev);
	netif_wake_queue(netdev);
}

static int
ixgb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	u32 speed = ethtool_cmd_speed(ecmd);

	if (ecmd->autoneg == AUTONEG_ENABLE ||
	    (speed + ecmd->duplex != SPEED_10000 + DUPLEX_FULL))
		return -EINVAL;

	if (netif_running(adapter->netdev)) {
		ixgb_down(adapter, true);
		ixgb_reset(adapter);
		ixgb_up(adapter);
		ixgb_set_speed_duplex(netdev);
	} else
		ixgb_reset(adapter);

	return 0;
}

static void
ixgb_get_pauseparam(struct net_device *netdev,
			 struct ethtool_pauseparam *pause)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	struct ixgb_hw *hw = &adapter->hw;

	pause->autoneg = AUTONEG_DISABLE;

	if (hw->fc.type == ixgb_fc_rx_pause)
		pause->rx_pause = 1;
	else if (hw->fc.type == ixgb_fc_tx_pause)
		pause->tx_pause = 1;
	else if (hw->fc.type == ixgb_fc_full) {
		pause->rx_pause = 1;
		pause->tx_pause = 1;
	}
}

static int
ixgb_set_pauseparam(struct net_device *netdev,
			 struct ethtool_pauseparam *pause)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	struct ixgb_hw *hw = &adapter->hw;

	if (pause->autoneg == AUTONEG_ENABLE)
		return -EINVAL;

	if (pause->rx_pause && pause->tx_pause)
		hw->fc.type = ixgb_fc_full;
	else if (pause->rx_pause && !pause->tx_pause)
		hw->fc.type = ixgb_fc_rx_pause;
	else if (!pause->rx_pause && pause->tx_pause)
		hw->fc.type = ixgb_fc_tx_pause;
	else if (!pause->rx_pause && !pause->tx_pause)
		hw->fc.type = ixgb_fc_none;

	if (netif_running(adapter->netdev)) {
		ixgb_down(adapter, true);
		ixgb_up(adapter);
		ixgb_set_speed_duplex(netdev);
	} else
		ixgb_reset(adapter);

	return 0;
}

static u32
ixgb_get_rx_csum(struct net_device *netdev)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);

	return adapter->rx_csum;
}

static int
ixgb_set_rx_csum(struct net_device *netdev, u32 data)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);

	adapter->rx_csum = data;

	if (netif_running(netdev)) {
		ixgb_down(adapter, true);
		ixgb_up(adapter);
		ixgb_set_speed_duplex(netdev);
	} else
		ixgb_reset(adapter);
	return 0;
}

static u32
ixgb_get_tx_csum(struct net_device *netdev)
{
	return (netdev->features & NETIF_F_HW_CSUM) != 0;
}

static int
ixgb_set_tx_csum(struct net_device *netdev, u32 data)
{
	if (data)
		netdev->features |= NETIF_F_HW_CSUM;
	else
		netdev->features &= ~NETIF_F_HW_CSUM;

	return 0;
}

static int
ixgb_set_tso(struct net_device *netdev, u32 data)
{
	if (data)
		netdev->features |= NETIF_F_TSO;
	else
		netdev->features &= ~NETIF_F_TSO;
	return 0;
}

static u32
ixgb_get_msglevel(struct net_device *netdev)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	return adapter->msg_enable;
}

static void
ixgb_set_msglevel(struct net_device *netdev, u32 data)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	adapter->msg_enable = data;
}
#define IXGB_GET_STAT(_A_, _R_) _A_->stats._R_

static int
ixgb_get_regs_len(struct net_device *netdev)
{
#define IXGB_REG_DUMP_LEN  136*sizeof(u32)
	return IXGB_REG_DUMP_LEN;
}

static void
ixgb_get_regs(struct net_device *netdev,
		   struct ethtool_regs *regs, void *p)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	struct ixgb_hw *hw = &adapter->hw;
	u32 *reg = p;
	u32 *reg_start = reg;
	u8 i;

	/* the 1 (one) below indicates an attempt at versioning, if the
	 * interface in ethtool or the driver changes, this 1 should be
	 * incremented */
	regs->version = (1<<24) | hw->revision_id << 16 | hw->device_id;

	/* General Registers */
	*reg++ = IXGB_READ_REG(hw, CTRL0);	/*   0 */
	*reg++ = IXGB_READ_REG(hw, CTRL1);	/*   1 */
	*reg++ = IXGB_READ_REG(hw, STATUS);	/*   2 */
	*reg++ = IXGB_READ_REG(hw, EECD);	/*   3 */
	*reg++ = IXGB_READ_REG(hw, MFS);	/*   4 */

	/* Interrupt */
	*reg++ = IXGB_READ_REG(hw, ICR);	/*   5 */
	*reg++ = IXGB_READ_REG(hw, ICS);	/*   6 */
	*reg++ = IXGB_READ_REG(hw, IMS);	/*   7 */
	*reg++ = IXGB_READ_REG(hw, IMC);	/*   8 */

	/* Receive */
	*reg++ = IXGB_READ_REG(hw, RCTL);	/*   9 */
	*reg++ = IXGB_READ_REG(hw, FCRTL);	/*  10 */
	*reg++ = IXGB_READ_REG(hw, FCRTH);	/*  11 */
	*reg++ = IXGB_READ_REG(hw, RDBAL);	/*  12 */
	*reg++ = IXGB_READ_REG(hw, RDBAH);	/*  13 */
	*reg++ = IXGB_READ_REG(hw, RDLEN);	/*  14 */
	*reg++ = IXGB_READ_REG(hw, RDH);	/*  15 */
	*reg++ = IXGB_READ_REG(hw, RDT);	/*  16 */
	*reg++ = IXGB_READ_REG(hw, RDTR);	/*  17 */
	*reg++ = IXGB_READ_REG(hw, RXDCTL);	/*  18 */
	*reg++ = IXGB_READ_REG(hw, RAIDC);	/*  19 */
	*reg++ = IXGB_READ_REG(hw, RXCSUM);	/*  20 */

	/* there are 16 RAR entries in hardware, we only use 3 */
	for (i = 0; i < IXGB_ALL_RAR_ENTRIES; i++) {
		*reg++ = IXGB_READ_REG_ARRAY(hw, RAL, (i << 1)); /*21,...,51 */
		*reg++ = IXGB_READ_REG_ARRAY(hw, RAH, (i << 1)); /*22,...,52 */
	}

	/* Transmit */
	*reg++ = IXGB_READ_REG(hw, TCTL);	/*  53 */
	*reg++ = IXGB_READ_REG(hw, TDBAL);	/*  54 */
	*reg++ = IXGB_READ_REG(hw, TDBAH);	/*  55 */
	*reg++ = IXGB_READ_REG(hw, TDLEN);	/*  56 */
	*reg++ = IXGB_READ_REG(hw, TDH);	/*  57 */
	*reg++ = IXGB_READ_REG(hw, TDT);	/*  58 */
	*reg++ = IXGB_READ_REG(hw, TIDV);	/*  59 */
	*reg++ = IXGB_READ_REG(hw, TXDCTL);	/*  60 */
	*reg++ = IXGB_READ_REG(hw, TSPMT);	/*  61 */
	*reg++ = IXGB_READ_REG(hw, PAP);	/*  62 */

	/* Physical */
	*reg++ = IXGB_READ_REG(hw, PCSC1);	/*  63 */
	*reg++ = IXGB_READ_REG(hw, PCSC2);	/*  64 */
	*reg++ = IXGB_READ_REG(hw, PCSS1);	/*  65 */
	*reg++ = IXGB_READ_REG(hw, PCSS2);	/*  66 */
	*reg++ = IXGB_READ_REG(hw, XPCSS);	/*  67 */
	*reg++ = IXGB_READ_REG(hw, UCCR);	/*  68 */
	*reg++ = IXGB_READ_REG(hw, XPCSTC);	/*  69 */
	*reg++ = IXGB_READ_REG(hw, MACA);	/*  70 */
	*reg++ = IXGB_READ_REG(hw, APAE);	/*  71 */
	*reg++ = IXGB_READ_REG(hw, ARD);	/*  72 */
	*reg++ = IXGB_READ_REG(hw, AIS);	/*  73 */
	*reg++ = IXGB_READ_REG(hw, MSCA);	/*  74 */
	*reg++ = IXGB_READ_REG(hw, MSRWD);	/*  75 */

	/* Statistics */
	*reg++ = IXGB_GET_STAT(adapter, tprl);	/*  76 */
	*reg++ = IXGB_GET_STAT(adapter, tprh);	/*  77 */
	*reg++ = IXGB_GET_STAT(adapter, gprcl);	/*  78 */
	*reg++ = IXGB_GET_STAT(adapter, gprch);	/*  79 */
	*reg++ = IXGB_GET_STAT(adapter, bprcl);	/*  80 */
	*reg++ = IXGB_GET_STAT(adapter, bprch);	/*  81 */
	*reg++ = IXGB_GET_STAT(adapter, mprcl);	/*  82 */
	*reg++ = IXGB_GET_STAT(adapter, mprch);	/*  83 */
	*reg++ = IXGB_GET_STAT(adapter, uprcl);	/*  84 */
	*reg++ = IXGB_GET_STAT(adapter, uprch);	/*  85 */
	*reg++ = IXGB_GET_STAT(adapter, vprcl);	/*  86 */
	*reg++ = IXGB_GET_STAT(adapter, vprch);	/*  87 */
	*reg++ = IXGB_GET_STAT(adapter, jprcl);	/*  88 */
	*reg++ = IXGB_GET_STAT(adapter, jprch);	/*  89 */
	*reg++ = IXGB_GET_STAT(adapter, gorcl);	/*  90 */
	*reg++ = IXGB_GET_STAT(adapter, gorch);	/*  91 */
	*reg++ = IXGB_GET_STAT(adapter, torl);	/*  92 */
	*reg++ = IXGB_GET_STAT(adapter, torh);	/*  93 */
	*reg++ = IXGB_GET_STAT(adapter, rnbc);	/*  94 */
	*reg++ = IXGB_GET_STAT(adapter, ruc);	/*  95 */
	*reg++ = IXGB_GET_STAT(adapter, roc);	/*  96 */
	*reg++ = IXGB_GET_STAT(adapter, rlec);	/*  97 */
	*reg++ = IXGB_GET_STAT(adapter, crcerrs);	/*  98 */
	*reg++ = IXGB_GET_STAT(adapter, icbc);	/*  99 */
	*reg++ = IXGB_GET_STAT(adapter, ecbc);	/* 100 */
	*reg++ = IXGB_GET_STAT(adapter, mpc);	/* 101 */
	*reg++ = IXGB_GET_STAT(adapter, tptl);	/* 102 */
	*reg++ = IXGB_GET_STAT(adapter, tpth);	/* 103 */
	*reg++ = IXGB_GET_STAT(adapter, gptcl);	/* 104 */
	*reg++ = IXGB_GET_STAT(adapter, gptch);	/* 105 */
	*reg++ = IXGB_GET_STAT(adapter, bptcl);	/* 106 */
	*reg++ = IXGB_GET_STAT(adapter, bptch);	/* 107 */
	*reg++ = IXGB_GET_STAT(adapter, mptcl);	/* 108 */
	*reg++ = IXGB_GET_STAT(adapter, mptch);	/* 109 */
	*reg++ = IXGB_GET_STAT(adapter, uptcl);	/* 110 */
	*reg++ = IXGB_GET_STAT(adapter, uptch);	/* 111 */
	*reg++ = IXGB_GET_STAT(adapter, vptcl);	/* 112 */
	*reg++ = IXGB_GET_STAT(adapter, vptch);	/* 113 */
	*reg++ = IXGB_GET_STAT(adapter, jptcl);	/* 114 */
	*reg++ = IXGB_GET_STAT(adapter, jptch);	/* 115 */
	*reg++ = IXGB_GET_STAT(adapter, gotcl);	/* 116 */
	*reg++ = IXGB_GET_STAT(adapter, gotch);	/* 117 */
	*reg++ = IXGB_GET_STAT(adapter, totl);	/* 118 */
	*reg++ = IXGB_GET_STAT(adapter, toth);	/* 119 */
	*reg++ = IXGB_GET_STAT(adapter, dc);	/* 120 */
	*reg++ = IXGB_GET_STAT(adapter, plt64c);	/* 121 */
	*reg++ = IXGB_GET_STAT(adapter, tsctc);	/* 122 */
	*reg++ = IXGB_GET_STAT(adapter, tsctfc);	/* 123 */
	*reg++ = IXGB_GET_STAT(adapter, ibic);	/* 124 */
	*reg++ = IXGB_GET_STAT(adapter, rfc);	/* 125 */
	*reg++ = IXGB_GET_STAT(adapter, lfc);	/* 126 */
	*reg++ = IXGB_GET_STAT(adapter, pfrc);	/* 127 */
	*reg++ = IXGB_GET_STAT(adapter, pftc);	/* 128 */
	*reg++ = IXGB_GET_STAT(adapter, mcfrc);	/* 129 */
	*reg++ = IXGB_GET_STAT(adapter, mcftc);	/* 130 */
	*reg++ = IXGB_GET_STAT(adapter, xonrxc);	/* 131 */
	*reg++ = IXGB_GET_STAT(adapter, xontxc);	/* 132 */
	*reg++ = IXGB_GET_STAT(adapter, xoffrxc);	/* 133 */
	*reg++ = IXGB_GET_STAT(adapter, xofftxc);	/* 134 */
	*reg++ = IXGB_GET_STAT(adapter, rjc);	/* 135 */

	regs->len = (reg - reg_start) * sizeof(u32);
}

static int
ixgb_get_eeprom_len(struct net_device *netdev)
{
	/* return size in bytes */
	return IXGB_EEPROM_SIZE << 1;
}

static int
ixgb_get_eeprom(struct net_device *netdev,
		  struct ethtool_eeprom *eeprom, u8 *bytes)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	struct ixgb_hw *hw = &adapter->hw;
	__le16 *eeprom_buff;
	int i, max_len, first_word, last_word;
	int ret_val = 0;

	if (eeprom->len == 0) {
		ret_val = -EINVAL;
		goto geeprom_error;
	}

	eeprom->magic = hw->vendor_id | (hw->device_id << 16);

	max_len = ixgb_get_eeprom_len(netdev);

	if (eeprom->offset > eeprom->offset + eeprom->len) {
		ret_val = -EINVAL;
		goto geeprom_error;
	}

	if ((eeprom->offset + eeprom->len) > max_len)
		eeprom->len = (max_len - eeprom->offset);

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

	eeprom_buff = kmalloc(sizeof(__le16) *
			(last_word - first_word + 1), GFP_KERNEL);
	if (!eeprom_buff)
		return -ENOMEM;

	/* note the eeprom was good because the driver loaded */
	for (i = 0; i <= (last_word - first_word); i++)
		eeprom_buff[i] = ixgb_get_eeprom_word(hw, (first_word + i));

	memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
	kfree(eeprom_buff);

geeprom_error:
	return ret_val;
}

static int
ixgb_set_eeprom(struct net_device *netdev,
		  struct ethtool_eeprom *eeprom, u8 *bytes)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	struct ixgb_hw *hw = &adapter->hw;
	u16 *eeprom_buff;
	void *ptr;
	int max_len, first_word, last_word;
	u16 i;

	if (eeprom->len == 0)
		return -EINVAL;

	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
		return -EFAULT;

	max_len = ixgb_get_eeprom_len(netdev);

	if (eeprom->offset > eeprom->offset + eeprom->len)
		return -EINVAL;

	if ((eeprom->offset + eeprom->len) > max_len)
		eeprom->len = (max_len - eeprom->offset);

	first_word = eeprom->offset >> 1;
	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
	eeprom_buff = kmalloc(max_len, GFP_KERNEL);
	if (!eeprom_buff)
		return -ENOMEM;

	ptr = (void *)eeprom_buff;

	if (eeprom->offset & 1) {
		/* need read/modify/write of first changed EEPROM word */
		/* only the second byte of the word is being modified */
		eeprom_buff[0] = ixgb_read_eeprom(hw, first_word);
		ptr++;
	}
	if ((eeprom->offset + eeprom->len) & 1) {
		/* need read/modify/write of last changed EEPROM word */
		/* only the first byte of the word is being modified */
		eeprom_buff[last_word - first_word]
			= ixgb_read_eeprom(hw, last_word);
	}

	memcpy(ptr, bytes, eeprom->len);
	for (i = 0; i <= (last_word - first_word); i++)
		ixgb_write_eeprom(hw, first_word + i, eeprom_buff[i]);

	/* Update the checksum over the first part of the EEPROM if needed */
	if (first_word <= EEPROM_CHECKSUM_REG)
		ixgb_update_eeprom_checksum(hw);

	kfree(eeprom_buff);
	return 0;
}

static void
ixgb_get_drvinfo(struct net_device *netdev,
		   struct ethtool_drvinfo *drvinfo)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);

	strncpy(drvinfo->driver,  ixgb_driver_name, 32);
	strncpy(drvinfo->version, ixgb_driver_version, 32);
	strncpy(drvinfo->fw_version, "N/A", 32);
	strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
	drvinfo->n_stats = IXGB_STATS_LEN;
	drvinfo->regdump_len = ixgb_get_regs_len(netdev);
	drvinfo->eedump_len = ixgb_get_eeprom_len(netdev);
}

static void
ixgb_get_ringparam(struct net_device *netdev,
		struct ethtool_ringparam *ring)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	struct ixgb_desc_ring *txdr = &adapter->tx_ring;
	struct ixgb_desc_ring *rxdr = &adapter->rx_ring;

	ring->rx_max_pending = MAX_RXD;
	ring->tx_max_pending = MAX_TXD;
	ring->rx_mini_max_pending = 0;
	ring->rx_jumbo_max_pending = 0;
	ring->rx_pending = rxdr->count;
	ring->tx_pending = txdr->count;
	ring->rx_mini_pending = 0;
	ring->rx_jumbo_pending = 0;
}

static int
ixgb_set_ringparam(struct net_device *netdev,
		struct ethtool_ringparam *ring)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	struct ixgb_desc_ring *txdr = &adapter->tx_ring;
	struct ixgb_desc_ring *rxdr = &adapter->rx_ring;
	struct ixgb_desc_ring tx_old, tx_new, rx_old, rx_new;
	int err;

	tx_old = adapter->tx_ring;
	rx_old = adapter->rx_ring;

	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
		return -EINVAL;

	if (netif_running(adapter->netdev))
		ixgb_down(adapter, true);

	rxdr->count = max(ring->rx_pending,(u32)MIN_RXD);
	rxdr->count = min(rxdr->count,(u32)MAX_RXD);
	rxdr->count = ALIGN(rxdr->count, IXGB_REQ_RX_DESCRIPTOR_MULTIPLE);

	txdr->count = max(ring->tx_pending,(u32)MIN_TXD);
	txdr->count = min(txdr->count,(u32)MAX_TXD);
	txdr->count = ALIGN(txdr->count, IXGB_REQ_TX_DESCRIPTOR_MULTIPLE);

	if (netif_running(adapter->netdev)) {
		/* Try to get new resources before deleting old */
		if ((err = ixgb_setup_rx_resources(adapter)))
			goto err_setup_rx;
		if ((err = ixgb_setup_tx_resources(adapter)))
			goto err_setup_tx;

		/* save the new, restore the old in order to free it,
		 * then restore the new back again */

		rx_new = adapter->rx_ring;
		tx_new = adapter->tx_ring;
		adapter->rx_ring = rx_old;
		adapter->tx_ring = tx_old;
		ixgb_free_rx_resources(adapter);
		ixgb_free_tx_resources(adapter);
		adapter->rx_ring = rx_new;
		adapter->tx_ring = tx_new;
		if ((err = ixgb_up(adapter)))
			return err;
		ixgb_set_speed_duplex(netdev);
	}

	return 0;
err_setup_tx:
	ixgb_free_rx_resources(adapter);
err_setup_rx:
	adapter->rx_ring = rx_old;
	adapter->tx_ring = tx_old;
	ixgb_up(adapter);
	return err;
}

static int
ixgb_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);

	switch (state) {
	case ETHTOOL_ID_ACTIVE:
		return 2;

	case ETHTOOL_ID_ON:
		ixgb_led_on(&adapter->hw);
		break;

	case ETHTOOL_ID_OFF:
	case ETHTOOL_ID_INACTIVE:
		ixgb_led_off(&adapter->hw);
	}

	return 0;
}

static int
ixgb_get_sset_count(struct net_device *netdev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		return IXGB_STATS_LEN;
	default:
		return -EOPNOTSUPP;
	}
}

static void
ixgb_get_ethtool_stats(struct net_device *netdev,
		struct ethtool_stats *stats, u64 *data)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	int i;
	char *p = NULL;

	ixgb_update_stats(adapter);
	for (i = 0; i < IXGB_STATS_LEN; i++) {
		switch (ixgb_gstrings_stats[i].type) {
		case NETDEV_STATS:
			p = (char *) netdev +
					ixgb_gstrings_stats[i].stat_offset;
			break;
		case IXGB_STATS:
			p = (char *) adapter +
					ixgb_gstrings_stats[i].stat_offset;
			break;
		}

		data[i] = (ixgb_gstrings_stats[i].sizeof_stat ==
			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
	}
}

static void
ixgb_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
	int i;

	switch(stringset) {
	case ETH_SS_STATS:
		for (i = 0; i < IXGB_STATS_LEN; i++) {
			memcpy(data + i * ETH_GSTRING_LEN,
			ixgb_gstrings_stats[i].stat_string,
			ETH_GSTRING_LEN);
		}
		break;
	}
}

static int ixgb_set_flags(struct net_device *netdev, u32 data)
{
	struct ixgb_adapter *adapter = netdev_priv(netdev);
	bool need_reset;
	int rc;

	/*
	 * Tx VLAN insertion does not work per HW design when Rx stripping is
	 * disabled.  Disable txvlan when rxvlan is turned off, and enable
	 * rxvlan when txvlan is turned on.
	 */
	if (!(data & ETH_FLAG_RXVLAN) &&
	    (netdev->features & NETIF_F_HW_VLAN_TX))
		data &= ~ETH_FLAG_TXVLAN;
	else if (data & ETH_FLAG_TXVLAN)
		data |= ETH_FLAG_RXVLAN;

	need_reset = (data & ETH_FLAG_RXVLAN) !=
		     (netdev->features & NETIF_F_HW_VLAN_RX);

	rc = ethtool_op_set_flags(netdev, data, ETH_FLAG_RXVLAN |
						ETH_FLAG_TXVLAN);
	if (rc)
		return rc;

	if (need_reset) {
		if (netif_running(netdev)) {
			ixgb_down(adapter, true);
			ixgb_up(adapter);
			ixgb_set_speed_duplex(netdev);
		} else
			ixgb_reset(adapter);
	}

	return 0;
}

static const struct ethtool_ops ixgb_ethtool_ops = {
	.get_settings = ixgb_get_settings,
	.set_settings = ixgb_set_settings,
	.get_drvinfo = ixgb_get_drvinfo,
	.get_regs_len = ixgb_get_regs_len,
	.get_regs = ixgb_get_regs,
	.get_link = ethtool_op_get_link,
	.get_eeprom_len = ixgb_get_eeprom_len,
	.get_eeprom = ixgb_get_eeprom,
	.set_eeprom = ixgb_set_eeprom,
	.get_ringparam = ixgb_get_ringparam,
	.set_ringparam = ixgb_set_ringparam,
	.get_pauseparam	= ixgb_get_pauseparam,
	.set_pauseparam	= ixgb_set_pauseparam,
	.get_rx_csum = ixgb_get_rx_csum,
	.set_rx_csum = ixgb_set_rx_csum,
	.get_tx_csum = ixgb_get_tx_csum,
	.set_tx_csum = ixgb_set_tx_csum,
	.set_sg	= ethtool_op_set_sg,
	.get_msglevel = ixgb_get_msglevel,
	.set_msglevel = ixgb_set_msglevel,
	.set_tso = ixgb_set_tso,
	.get_strings = ixgb_get_strings,
	.set_phys_id = ixgb_set_phys_id,
	.get_sset_count = ixgb_get_sset_count,
	.get_ethtool_stats = ixgb_get_ethtool_stats,
	.get_flags = ethtool_op_get_flags,
	.set_flags = ixgb_set_flags,
};

void ixgb_set_ethtool_ops(struct net_device *netdev)
{
	SET_ETHTOOL_OPS(netdev, &ixgb_ethtool_ops);
}