summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/microchip/lan743x_ethtool.c
blob: 07c1eb63415a343e08b58892d4196c76fb75d2fc (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
/* SPDX-License-Identifier: GPL-2.0+ */
/* Copyright (C) 2018 Microchip Technology Inc. */

#include <linux/netdevice.h>
#include "lan743x_main.h"
#include "lan743x_ethtool.h"
#include <linux/net_tstamp.h>
#include <linux/pci.h>
#include <linux/phy.h>

/* eeprom */
#define LAN743X_EEPROM_MAGIC		    (0x74A5)
#define LAN743X_OTP_MAGIC		    (0x74F3)
#define EEPROM_INDICATOR_1		    (0xA5)
#define EEPROM_INDICATOR_2		    (0xAA)
#define EEPROM_MAC_OFFSET		    (0x01)
#define MAX_EEPROM_SIZE			    512
#define OTP_INDICATOR_1			    (0xF3)
#define OTP_INDICATOR_2			    (0xF7)

static int lan743x_otp_write(struct lan743x_adapter *adapter, u32 offset,
			     u32 length, u8 *data)
{
	unsigned long timeout;
	u32 buf;
	int i;

	buf = lan743x_csr_read(adapter, OTP_PWR_DN);

	if (buf & OTP_PWR_DN_PWRDN_N_) {
		/* clear it and wait to be cleared */
		lan743x_csr_write(adapter, OTP_PWR_DN, 0);

		timeout = jiffies + HZ;
		do {
			udelay(1);
			buf = lan743x_csr_read(adapter, OTP_PWR_DN);
			if (time_after(jiffies, timeout)) {
				netif_warn(adapter, drv, adapter->netdev,
					   "timeout on OTP_PWR_DN completion\n");
				return -EIO;
			}
		} while (buf & OTP_PWR_DN_PWRDN_N_);
	}

	/* set to BYTE program mode */
	lan743x_csr_write(adapter, OTP_PRGM_MODE, OTP_PRGM_MODE_BYTE_);

	for (i = 0; i < length; i++) {
		lan743x_csr_write(adapter, OTP_ADDR1,
				  ((offset + i) >> 8) &
				  OTP_ADDR1_15_11_MASK_);
		lan743x_csr_write(adapter, OTP_ADDR2,
				  ((offset + i) &
				  OTP_ADDR2_10_3_MASK_));
		lan743x_csr_write(adapter, OTP_PRGM_DATA, data[i]);
		lan743x_csr_write(adapter, OTP_TST_CMD, OTP_TST_CMD_PRGVRFY_);
		lan743x_csr_write(adapter, OTP_CMD_GO, OTP_CMD_GO_GO_);

		timeout = jiffies + HZ;
		do {
			udelay(1);
			buf = lan743x_csr_read(adapter, OTP_STATUS);
			if (time_after(jiffies, timeout)) {
				netif_warn(adapter, drv, adapter->netdev,
					   "Timeout on OTP_STATUS completion\n");
				return -EIO;
			}
		} while (buf & OTP_STATUS_BUSY_);
	}

	return 0;
}

static int lan743x_eeprom_wait(struct lan743x_adapter *adapter)
{
	unsigned long start_time = jiffies;
	u32 val;

	do {
		val = lan743x_csr_read(adapter, E2P_CMD);

		if (!(val & E2P_CMD_EPC_BUSY_) ||
		    (val & E2P_CMD_EPC_TIMEOUT_))
			break;
		usleep_range(40, 100);
	} while (!time_after(jiffies, start_time + HZ));

	if (val & (E2P_CMD_EPC_TIMEOUT_ | E2P_CMD_EPC_BUSY_)) {
		netif_warn(adapter, drv, adapter->netdev,
			   "EEPROM read operation timeout\n");
		return -EIO;
	}

	return 0;
}

static int lan743x_eeprom_confirm_not_busy(struct lan743x_adapter *adapter)
{
	unsigned long start_time = jiffies;
	u32 val;

	do {
		val = lan743x_csr_read(adapter, E2P_CMD);

		if (!(val & E2P_CMD_EPC_BUSY_))
			return 0;

		usleep_range(40, 100);
	} while (!time_after(jiffies, start_time + HZ));

	netif_warn(adapter, drv, adapter->netdev, "EEPROM is busy\n");
	return -EIO;
}

static int lan743x_eeprom_read(struct lan743x_adapter *adapter,
			       u32 offset, u32 length, u8 *data)
{
	int retval;
	u32 val;
	int i;

	retval = lan743x_eeprom_confirm_not_busy(adapter);
	if (retval)
		return retval;

	for (i = 0; i < length; i++) {
		val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_READ_;
		val |= (offset & E2P_CMD_EPC_ADDR_MASK_);
		lan743x_csr_write(adapter, E2P_CMD, val);

		retval = lan743x_eeprom_wait(adapter);
		if (retval < 0)
			return retval;

		val = lan743x_csr_read(adapter, E2P_DATA);
		data[i] = val & 0xFF;
		offset++;
	}

	return 0;
}

static int lan743x_eeprom_write(struct lan743x_adapter *adapter,
				u32 offset, u32 length, u8 *data)
{
	int retval;
	u32 val;
	int i;

	retval = lan743x_eeprom_confirm_not_busy(adapter);
	if (retval)
		return retval;

	/* Issue write/erase enable command */
	val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_EWEN_;
	lan743x_csr_write(adapter, E2P_CMD, val);

	retval = lan743x_eeprom_wait(adapter);
	if (retval < 0)
		return retval;

	for (i = 0; i < length; i++) {
		/* Fill data register */
		val = data[i];
		lan743x_csr_write(adapter, E2P_DATA, val);

		/* Send "write" command */
		val = E2P_CMD_EPC_BUSY_ | E2P_CMD_EPC_CMD_WRITE_;
		val |= (offset & E2P_CMD_EPC_ADDR_MASK_);
		lan743x_csr_write(adapter, E2P_CMD, val);

		retval = lan743x_eeprom_wait(adapter);
		if (retval < 0)
			return retval;

		offset++;
	}

	return 0;
}

static void lan743x_ethtool_get_drvinfo(struct net_device *netdev,
					struct ethtool_drvinfo *info)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);

	strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver));
	strlcpy(info->bus_info,
		pci_name(adapter->pdev), sizeof(info->bus_info));
}

static u32 lan743x_ethtool_get_msglevel(struct net_device *netdev)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);

	return adapter->msg_enable;
}

static void lan743x_ethtool_set_msglevel(struct net_device *netdev,
					 u32 msglevel)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);

	adapter->msg_enable = msglevel;
}

static int lan743x_ethtool_get_eeprom_len(struct net_device *netdev)
{
	return MAX_EEPROM_SIZE;
}

static int lan743x_ethtool_get_eeprom(struct net_device *netdev,
				      struct ethtool_eeprom *ee, u8 *data)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);

	return lan743x_eeprom_read(adapter, ee->offset, ee->len, data);
}

static int lan743x_ethtool_set_eeprom(struct net_device *netdev,
				      struct ethtool_eeprom *ee, u8 *data)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);
	int ret = -EINVAL;

	if (ee->magic == LAN743X_EEPROM_MAGIC)
		ret = lan743x_eeprom_write(adapter, ee->offset, ee->len,
					   data);
	/* Beware!  OTP is One Time Programming ONLY!
	 * So do some strict condition check before messing up
	 */
	else if ((ee->magic == LAN743X_OTP_MAGIC) &&
		 (ee->offset == 0) &&
		 (ee->len == MAX_EEPROM_SIZE) &&
		 (data[0] == OTP_INDICATOR_1))
		ret = lan743x_otp_write(adapter, ee->offset, ee->len, data);

	return ret;
}

static const char lan743x_set0_hw_cnt_strings[][ETH_GSTRING_LEN] = {
	"RX FCS Errors",
	"RX Alignment Errors",
	"Rx Fragment Errors",
	"RX Jabber Errors",
	"RX Undersize Frame Errors",
	"RX Oversize Frame Errors",
	"RX Dropped Frames",
	"RX Unicast Byte Count",
	"RX Broadcast Byte Count",
	"RX Multicast Byte Count",
	"RX Unicast Frames",
	"RX Broadcast Frames",
	"RX Multicast Frames",
	"RX Pause Frames",
	"RX 64 Byte Frames",
	"RX 65 - 127 Byte Frames",
	"RX 128 - 255 Byte Frames",
	"RX 256 - 511 Bytes Frames",
	"RX 512 - 1023 Byte Frames",
	"RX 1024 - 1518 Byte Frames",
	"RX Greater 1518 Byte Frames",
};

static const char lan743x_set1_sw_cnt_strings[][ETH_GSTRING_LEN] = {
	"RX Queue 0 Frames",
	"RX Queue 1 Frames",
	"RX Queue 2 Frames",
	"RX Queue 3 Frames",
};

static const char lan743x_set2_hw_cnt_strings[][ETH_GSTRING_LEN] = {
	"RX Total Frames",
	"EEE RX LPI Transitions",
	"EEE RX LPI Time",
	"RX Counter Rollover Status",
	"TX FCS Errors",
	"TX Excess Deferral Errors",
	"TX Carrier Errors",
	"TX Bad Byte Count",
	"TX Single Collisions",
	"TX Multiple Collisions",
	"TX Excessive Collision",
	"TX Late Collisions",
	"TX Unicast Byte Count",
	"TX Broadcast Byte Count",
	"TX Multicast Byte Count",
	"TX Unicast Frames",
	"TX Broadcast Frames",
	"TX Multicast Frames",
	"TX Pause Frames",
	"TX 64 Byte Frames",
	"TX 65 - 127 Byte Frames",
	"TX 128 - 255 Byte Frames",
	"TX 256 - 511 Bytes Frames",
	"TX 512 - 1023 Byte Frames",
	"TX 1024 - 1518 Byte Frames",
	"TX Greater 1518 Byte Frames",
	"TX Total Frames",
	"EEE TX LPI Transitions",
	"EEE TX LPI Time",
	"TX Counter Rollover Status",
};

static const u32 lan743x_set0_hw_cnt_addr[] = {
	STAT_RX_FCS_ERRORS,
	STAT_RX_ALIGNMENT_ERRORS,
	STAT_RX_FRAGMENT_ERRORS,
	STAT_RX_JABBER_ERRORS,
	STAT_RX_UNDERSIZE_FRAME_ERRORS,
	STAT_RX_OVERSIZE_FRAME_ERRORS,
	STAT_RX_DROPPED_FRAMES,
	STAT_RX_UNICAST_BYTE_COUNT,
	STAT_RX_BROADCAST_BYTE_COUNT,
	STAT_RX_MULTICAST_BYTE_COUNT,
	STAT_RX_UNICAST_FRAMES,
	STAT_RX_BROADCAST_FRAMES,
	STAT_RX_MULTICAST_FRAMES,
	STAT_RX_PAUSE_FRAMES,
	STAT_RX_64_BYTE_FRAMES,
	STAT_RX_65_127_BYTE_FRAMES,
	STAT_RX_128_255_BYTE_FRAMES,
	STAT_RX_256_511_BYTES_FRAMES,
	STAT_RX_512_1023_BYTE_FRAMES,
	STAT_RX_1024_1518_BYTE_FRAMES,
	STAT_RX_GREATER_1518_BYTE_FRAMES,
};

static const u32 lan743x_set2_hw_cnt_addr[] = {
	STAT_RX_TOTAL_FRAMES,
	STAT_EEE_RX_LPI_TRANSITIONS,
	STAT_EEE_RX_LPI_TIME,
	STAT_RX_COUNTER_ROLLOVER_STATUS,
	STAT_TX_FCS_ERRORS,
	STAT_TX_EXCESS_DEFERRAL_ERRORS,
	STAT_TX_CARRIER_ERRORS,
	STAT_TX_BAD_BYTE_COUNT,
	STAT_TX_SINGLE_COLLISIONS,
	STAT_TX_MULTIPLE_COLLISIONS,
	STAT_TX_EXCESSIVE_COLLISION,
	STAT_TX_LATE_COLLISIONS,
	STAT_TX_UNICAST_BYTE_COUNT,
	STAT_TX_BROADCAST_BYTE_COUNT,
	STAT_TX_MULTICAST_BYTE_COUNT,
	STAT_TX_UNICAST_FRAMES,
	STAT_TX_BROADCAST_FRAMES,
	STAT_TX_MULTICAST_FRAMES,
	STAT_TX_PAUSE_FRAMES,
	STAT_TX_64_BYTE_FRAMES,
	STAT_TX_65_127_BYTE_FRAMES,
	STAT_TX_128_255_BYTE_FRAMES,
	STAT_TX_256_511_BYTES_FRAMES,
	STAT_TX_512_1023_BYTE_FRAMES,
	STAT_TX_1024_1518_BYTE_FRAMES,
	STAT_TX_GREATER_1518_BYTE_FRAMES,
	STAT_TX_TOTAL_FRAMES,
	STAT_EEE_TX_LPI_TRANSITIONS,
	STAT_EEE_TX_LPI_TIME,
	STAT_TX_COUNTER_ROLLOVER_STATUS
};

static void lan743x_ethtool_get_strings(struct net_device *netdev,
					u32 stringset, u8 *data)
{
	switch (stringset) {
	case ETH_SS_STATS:
		memcpy(data, lan743x_set0_hw_cnt_strings,
		       sizeof(lan743x_set0_hw_cnt_strings));
		memcpy(&data[sizeof(lan743x_set0_hw_cnt_strings)],
		       lan743x_set1_sw_cnt_strings,
		       sizeof(lan743x_set1_sw_cnt_strings));
		memcpy(&data[sizeof(lan743x_set0_hw_cnt_strings) +
		       sizeof(lan743x_set1_sw_cnt_strings)],
		       lan743x_set2_hw_cnt_strings,
		       sizeof(lan743x_set2_hw_cnt_strings));
		break;
	}
}

static void lan743x_ethtool_get_ethtool_stats(struct net_device *netdev,
					      struct ethtool_stats *stats,
					      u64 *data)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);
	int data_index = 0;
	u32 buf;
	int i;

	for (i = 0; i < ARRAY_SIZE(lan743x_set0_hw_cnt_addr); i++) {
		buf = lan743x_csr_read(adapter, lan743x_set0_hw_cnt_addr[i]);
		data[data_index++] = (u64)buf;
	}
	for (i = 0; i < ARRAY_SIZE(adapter->rx); i++)
		data[data_index++] = (u64)(adapter->rx[i].frame_count);
	for (i = 0; i < ARRAY_SIZE(lan743x_set2_hw_cnt_addr); i++) {
		buf = lan743x_csr_read(adapter, lan743x_set2_hw_cnt_addr[i]);
		data[data_index++] = (u64)buf;
	}
}

static int lan743x_ethtool_get_sset_count(struct net_device *netdev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
	{
		int ret;

		ret = ARRAY_SIZE(lan743x_set0_hw_cnt_strings);
		ret += ARRAY_SIZE(lan743x_set1_sw_cnt_strings);
		ret += ARRAY_SIZE(lan743x_set2_hw_cnt_strings);
		return ret;
	}
	default:
		return -EOPNOTSUPP;
	}
}

static int lan743x_ethtool_get_rxnfc(struct net_device *netdev,
				     struct ethtool_rxnfc *rxnfc,
				     u32 *rule_locs)
{
	switch (rxnfc->cmd) {
	case ETHTOOL_GRXFH:
		rxnfc->data = 0;
		switch (rxnfc->flow_type) {
		case TCP_V4_FLOW:case UDP_V4_FLOW:
		case TCP_V6_FLOW:case UDP_V6_FLOW:
			rxnfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
			/* fall through */
		case IPV4_FLOW: case IPV6_FLOW:
			rxnfc->data |= RXH_IP_SRC | RXH_IP_DST;
			return 0;
		}
		break;
	case ETHTOOL_GRXRINGS:
		rxnfc->data = LAN743X_USED_RX_CHANNELS;
		return 0;
	}
	return -EOPNOTSUPP;
}

static u32 lan743x_ethtool_get_rxfh_key_size(struct net_device *netdev)
{
	return 40;
}

static u32 lan743x_ethtool_get_rxfh_indir_size(struct net_device *netdev)
{
	return 128;
}

static int lan743x_ethtool_get_rxfh(struct net_device *netdev,
				    u32 *indir, u8 *key, u8 *hfunc)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);

	if (indir) {
		int dw_index;
		int byte_index = 0;

		for (dw_index = 0; dw_index < 32; dw_index++) {
			u32 four_entries =
				lan743x_csr_read(adapter, RFE_INDX(dw_index));

			byte_index = dw_index << 2;
			indir[byte_index + 0] =
				((four_entries >> 0) & 0x000000FF);
			indir[byte_index + 1] =
				((four_entries >> 8) & 0x000000FF);
			indir[byte_index + 2] =
				((four_entries >> 16) & 0x000000FF);
			indir[byte_index + 3] =
				((four_entries >> 24) & 0x000000FF);
		}
	}
	if (key) {
		int dword_index;
		int byte_index = 0;

		for (dword_index = 0; dword_index < 10; dword_index++) {
			u32 four_entries =
				lan743x_csr_read(adapter,
						 RFE_HASH_KEY(dword_index));

			byte_index = dword_index << 2;
			key[byte_index + 0] =
				((four_entries >> 0) & 0x000000FF);
			key[byte_index + 1] =
				((four_entries >> 8) & 0x000000FF);
			key[byte_index + 2] =
				((four_entries >> 16) & 0x000000FF);
			key[byte_index + 3] =
				((four_entries >> 24) & 0x000000FF);
		}
	}
	if (hfunc)
		(*hfunc) = ETH_RSS_HASH_TOP;
	return 0;
}

static int lan743x_ethtool_set_rxfh(struct net_device *netdev,
				    const u32 *indir, const u8 *key,
				    const u8 hfunc)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);

	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
		return -EOPNOTSUPP;

	if (indir) {
		u32 indir_value = 0;
		int dword_index = 0;
		int byte_index = 0;

		for (dword_index = 0; dword_index < 32; dword_index++) {
			byte_index = dword_index << 2;
			indir_value =
				(((indir[byte_index + 0] & 0x000000FF) << 0) |
				((indir[byte_index + 1] & 0x000000FF) << 8) |
				((indir[byte_index + 2] & 0x000000FF) << 16) |
				((indir[byte_index + 3] & 0x000000FF) << 24));
			lan743x_csr_write(adapter, RFE_INDX(dword_index),
					  indir_value);
		}
	}
	if (key) {
		int dword_index = 0;
		int byte_index = 0;
		u32 key_value = 0;

		for (dword_index = 0; dword_index < 10; dword_index++) {
			byte_index = dword_index << 2;
			key_value =
				((((u32)(key[byte_index + 0])) << 0) |
				(((u32)(key[byte_index + 1])) << 8) |
				(((u32)(key[byte_index + 2])) << 16) |
				(((u32)(key[byte_index + 3])) << 24));
			lan743x_csr_write(adapter, RFE_HASH_KEY(dword_index),
					  key_value);
		}
	}
	return 0;
}

static int lan743x_ethtool_get_ts_info(struct net_device *netdev,
				       struct ethtool_ts_info *ts_info)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);

	ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
				   SOF_TIMESTAMPING_RX_SOFTWARE |
				   SOF_TIMESTAMPING_SOFTWARE |
				   SOF_TIMESTAMPING_TX_HARDWARE |
				   SOF_TIMESTAMPING_RX_HARDWARE |
				   SOF_TIMESTAMPING_RAW_HARDWARE;

	if (adapter->ptp.ptp_clock)
		ts_info->phc_index = ptp_clock_index(adapter->ptp.ptp_clock);
	else
		ts_info->phc_index = -1;

	ts_info->tx_types = BIT(HWTSTAMP_TX_OFF) |
			    BIT(HWTSTAMP_TX_ON) |
			    BIT(HWTSTAMP_TX_ONESTEP_SYNC);
	ts_info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
			      BIT(HWTSTAMP_FILTER_ALL);
	return 0;
}

static int lan743x_ethtool_get_eee(struct net_device *netdev,
				   struct ethtool_eee *eee)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);
	struct phy_device *phydev = netdev->phydev;
	u32 buf;
	int ret;

	if (!phydev)
		return -EIO;
	if (!phydev->drv) {
		netif_err(adapter, drv, adapter->netdev,
			  "Missing PHY Driver\n");
		return -EIO;
	}

	ret = phy_ethtool_get_eee(phydev, eee);
	if (ret < 0)
		return ret;

	buf = lan743x_csr_read(adapter, MAC_CR);
	if (buf & MAC_CR_EEE_EN_) {
		eee->eee_enabled = true;
		eee->eee_active = !!(eee->advertised & eee->lp_advertised);
		eee->tx_lpi_enabled = true;
		/* EEE_TX_LPI_REQ_DLY & tx_lpi_timer are same uSec unit */
		buf = lan743x_csr_read(adapter, MAC_EEE_TX_LPI_REQ_DLY_CNT);
		eee->tx_lpi_timer = buf;
	} else {
		eee->eee_enabled = false;
		eee->eee_active = false;
		eee->tx_lpi_enabled = false;
		eee->tx_lpi_timer = 0;
	}

	return 0;
}

static int lan743x_ethtool_set_eee(struct net_device *netdev,
				   struct ethtool_eee *eee)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);
	struct phy_device *phydev = NULL;
	u32 buf = 0;
	int ret = 0;

	if (!netdev)
		return -EINVAL;
	adapter = netdev_priv(netdev);
	if (!adapter)
		return -EINVAL;
	phydev = netdev->phydev;
	if (!phydev)
		return -EIO;
	if (!phydev->drv) {
		netif_err(adapter, drv, adapter->netdev,
			  "Missing PHY Driver\n");
		return -EIO;
	}

	if (eee->eee_enabled) {
		ret = phy_init_eee(phydev, 0);
		if (ret) {
			netif_err(adapter, drv, adapter->netdev,
				  "EEE initialization failed\n");
			return ret;
		}

		buf = (u32)eee->tx_lpi_timer;
		lan743x_csr_write(adapter, MAC_EEE_TX_LPI_REQ_DLY_CNT, buf);

		buf = lan743x_csr_read(adapter, MAC_CR);
		buf |= MAC_CR_EEE_EN_;
		lan743x_csr_write(adapter, MAC_CR, buf);
	} else {
		buf = lan743x_csr_read(adapter, MAC_CR);
		buf &= ~MAC_CR_EEE_EN_;
		lan743x_csr_write(adapter, MAC_CR, buf);
	}

	return phy_ethtool_set_eee(phydev, eee);
}

#ifdef CONFIG_PM
static void lan743x_ethtool_get_wol(struct net_device *netdev,
				    struct ethtool_wolinfo *wol)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);

	wol->supported = 0;
	wol->wolopts = 0;
	phy_ethtool_get_wol(netdev->phydev, wol);

	wol->supported |= WAKE_BCAST | WAKE_UCAST | WAKE_MCAST |
		WAKE_MAGIC | WAKE_PHY | WAKE_ARP;

	wol->wolopts |= adapter->wolopts;
}

static int lan743x_ethtool_set_wol(struct net_device *netdev,
				   struct ethtool_wolinfo *wol)
{
	struct lan743x_adapter *adapter = netdev_priv(netdev);

	adapter->wolopts = 0;
	if (wol->wolopts & WAKE_UCAST)
		adapter->wolopts |= WAKE_UCAST;
	if (wol->wolopts & WAKE_MCAST)
		adapter->wolopts |= WAKE_MCAST;
	if (wol->wolopts & WAKE_BCAST)
		adapter->wolopts |= WAKE_BCAST;
	if (wol->wolopts & WAKE_MAGIC)
		adapter->wolopts |= WAKE_MAGIC;
	if (wol->wolopts & WAKE_PHY)
		adapter->wolopts |= WAKE_PHY;
	if (wol->wolopts & WAKE_ARP)
		adapter->wolopts |= WAKE_ARP;

	device_set_wakeup_enable(&adapter->pdev->dev, (bool)wol->wolopts);

	phy_ethtool_set_wol(netdev->phydev, wol);

	return 0;
}
#endif /* CONFIG_PM */

const struct ethtool_ops lan743x_ethtool_ops = {
	.get_drvinfo = lan743x_ethtool_get_drvinfo,
	.get_msglevel = lan743x_ethtool_get_msglevel,
	.set_msglevel = lan743x_ethtool_set_msglevel,
	.get_link = ethtool_op_get_link,

	.get_eeprom_len = lan743x_ethtool_get_eeprom_len,
	.get_eeprom = lan743x_ethtool_get_eeprom,
	.set_eeprom = lan743x_ethtool_set_eeprom,
	.get_strings = lan743x_ethtool_get_strings,
	.get_ethtool_stats = lan743x_ethtool_get_ethtool_stats,
	.get_sset_count = lan743x_ethtool_get_sset_count,
	.get_rxnfc = lan743x_ethtool_get_rxnfc,
	.get_rxfh_key_size = lan743x_ethtool_get_rxfh_key_size,
	.get_rxfh_indir_size = lan743x_ethtool_get_rxfh_indir_size,
	.get_rxfh = lan743x_ethtool_get_rxfh,
	.set_rxfh = lan743x_ethtool_set_rxfh,
	.get_ts_info = lan743x_ethtool_get_ts_info,
	.get_eee = lan743x_ethtool_get_eee,
	.set_eee = lan743x_ethtool_set_eee,
	.get_link_ksettings = phy_ethtool_get_link_ksettings,
	.set_link_ksettings = phy_ethtool_set_link_ksettings,
#ifdef CONFIG_PM
	.get_wol = lan743x_ethtool_get_wol,
	.set_wol = lan743x_ethtool_set_wol,
#endif
};