aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
blob: 8ee224fdc1d1b4f4ddaecf60bc990671f7a4b20f (plain) (blame)
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
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
/*******************************************************************************
 *
 * Intel Ethernet Controller XL710 Family Linux Driver
 * Copyright(c) 2013 - 2014 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, see <http://www.gnu.org/licenses/>.
 *
 * The full GNU General Public License is included in this distribution in
 * the file called "COPYING".
 *
 * Contact Information:
 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 ******************************************************************************/

/* ethtool support for i40e */

#include "i40e.h"
#include "i40e_diag.h"

struct i40e_stats {
	char stat_string[ETH_GSTRING_LEN];
	int sizeof_stat;
	int stat_offset;
};

#define I40E_STAT(_type, _name, _stat) { \
	.stat_string = _name, \
	.sizeof_stat = FIELD_SIZEOF(_type, _stat), \
	.stat_offset = offsetof(_type, _stat) \
}
#define I40E_NETDEV_STAT(_net_stat) \
		I40E_STAT(struct net_device_stats, #_net_stat, _net_stat)
#define I40E_PF_STAT(_name, _stat) \
		I40E_STAT(struct i40e_pf, _name, _stat)
#define I40E_VSI_STAT(_name, _stat) \
		I40E_STAT(struct i40e_vsi, _name, _stat)

static const struct i40e_stats i40e_gstrings_net_stats[] = {
	I40E_NETDEV_STAT(rx_packets),
	I40E_NETDEV_STAT(tx_packets),
	I40E_NETDEV_STAT(rx_bytes),
	I40E_NETDEV_STAT(tx_bytes),
	I40E_NETDEV_STAT(rx_errors),
	I40E_NETDEV_STAT(tx_errors),
	I40E_NETDEV_STAT(rx_dropped),
	I40E_NETDEV_STAT(tx_dropped),
	I40E_NETDEV_STAT(multicast),
	I40E_NETDEV_STAT(collisions),
	I40E_NETDEV_STAT(rx_length_errors),
	I40E_NETDEV_STAT(rx_crc_errors),
};

static int i40e_add_del_fdir_ethtool(struct i40e_vsi *vsi,
				     struct ethtool_rxnfc *cmd, bool add);

/* These PF_STATs might look like duplicates of some NETDEV_STATs,
 * but they are separate.  This device supports Virtualization, and
 * as such might have several netdevs supporting VMDq and FCoE going
 * through a single port.  The NETDEV_STATs are for individual netdevs
 * seen at the top of the stack, and the PF_STATs are for the physical
 * function at the bottom of the stack hosting those netdevs.
 *
 * The PF_STATs are appended to the netdev stats only when ethtool -S
 * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 */
static struct i40e_stats i40e_gstrings_stats[] = {
	I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
	I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
	I40E_PF_STAT("rx_errors", stats.eth.rx_errors),
	I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
	I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
	I40E_PF_STAT("tx_dropped", stats.eth.tx_discards),
	I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
	I40E_PF_STAT("crc_errors", stats.crc_errors),
	I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
	I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
	I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
	I40E_PF_STAT("tx_timeout", tx_timeout_count),
	I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
	I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
	I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
	I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
	I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
	I40E_PF_STAT("rx_size_64", stats.rx_size_64),
	I40E_PF_STAT("rx_size_127", stats.rx_size_127),
	I40E_PF_STAT("rx_size_255", stats.rx_size_255),
	I40E_PF_STAT("rx_size_511", stats.rx_size_511),
	I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
	I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
	I40E_PF_STAT("rx_size_big", stats.rx_size_big),
	I40E_PF_STAT("tx_size_64", stats.tx_size_64),
	I40E_PF_STAT("tx_size_127", stats.tx_size_127),
	I40E_PF_STAT("tx_size_255", stats.tx_size_255),
	I40E_PF_STAT("tx_size_511", stats.tx_size_511),
	I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
	I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
	I40E_PF_STAT("tx_size_big", stats.tx_size_big),
	I40E_PF_STAT("rx_undersize", stats.rx_undersize),
	I40E_PF_STAT("rx_fragments", stats.rx_fragments),
	I40E_PF_STAT("rx_oversize", stats.rx_oversize),
	I40E_PF_STAT("rx_jabber", stats.rx_jabber),
	I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
	I40E_PF_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
	I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
};

#define I40E_QUEUE_STATS_LEN(n) \
  ((((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs + \
    ((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs) * 2)
#define I40E_GLOBAL_STATS_LEN	ARRAY_SIZE(i40e_gstrings_stats)
#define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
#define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
				 I40E_QUEUE_STATS_LEN((n)))
#define I40E_PFC_STATS_LEN ( \
		(FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
		 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
		 FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
		 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
		 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
		 / sizeof(u64))
#define I40E_PF_STATS_LEN(n)	(I40E_GLOBAL_STATS_LEN + \
				 I40E_PFC_STATS_LEN + \
				 I40E_VSI_STATS_LEN((n)))

enum i40e_ethtool_test_id {
	I40E_ETH_TEST_REG = 0,
	I40E_ETH_TEST_EEPROM,
	I40E_ETH_TEST_INTR,
	I40E_ETH_TEST_LOOPBACK,
	I40E_ETH_TEST_LINK,
};

static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
	"Register test  (offline)",
	"Eeprom test    (offline)",
	"Interrupt test (offline)",
	"Loopback test  (offline)",
	"Link test   (on/offline)"
};

#define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)

/**
 * i40e_get_settings - Get Link Speed and Duplex settings
 * @netdev: network interface device structure
 * @ecmd: ethtool command
 *
 * Reports speed/duplex settings based on media_type
 **/
static int i40e_get_settings(struct net_device *netdev,
			     struct ethtool_cmd *ecmd)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_link_status *hw_link_info = &hw->phy.link_info;
	bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
	u32 link_speed = hw_link_info->link_speed;

	/* hardware is either in 40G mode or 10G mode
	 * NOTE: this section initializes supported and advertising
	 */
	switch (hw_link_info->phy_type) {
	case I40E_PHY_TYPE_40GBASE_CR4:
	case I40E_PHY_TYPE_40GBASE_CR4_CU:
		ecmd->supported = SUPPORTED_40000baseCR4_Full;
		ecmd->advertising = ADVERTISED_40000baseCR4_Full;
		break;
	case I40E_PHY_TYPE_40GBASE_KR4:
		ecmd->supported = SUPPORTED_40000baseKR4_Full;
		ecmd->advertising = ADVERTISED_40000baseKR4_Full;
		break;
	case I40E_PHY_TYPE_40GBASE_SR4:
		ecmd->supported = SUPPORTED_40000baseSR4_Full;
		ecmd->advertising = ADVERTISED_40000baseSR4_Full;
		break;
	case I40E_PHY_TYPE_40GBASE_LR4:
		ecmd->supported = SUPPORTED_40000baseLR4_Full;
		ecmd->advertising = ADVERTISED_40000baseLR4_Full;
		break;
	case I40E_PHY_TYPE_10GBASE_KX4:
		ecmd->supported = SUPPORTED_10000baseKX4_Full;
		ecmd->advertising = ADVERTISED_10000baseKX4_Full;
		break;
	case I40E_PHY_TYPE_10GBASE_KR:
		ecmd->supported = SUPPORTED_10000baseKR_Full;
		ecmd->advertising = ADVERTISED_10000baseKR_Full;
		break;
	default:
		if (i40e_is_40G_device(hw->device_id)) {
			ecmd->supported = SUPPORTED_40000baseSR4_Full;
			ecmd->advertising = ADVERTISED_40000baseSR4_Full;
		} else {
			ecmd->supported = SUPPORTED_10000baseT_Full;
			ecmd->advertising = ADVERTISED_10000baseT_Full;
		}
		break;
	}

	ecmd->supported |= SUPPORTED_Autoneg;
	ecmd->advertising |= ADVERTISED_Autoneg;
	ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
			  AUTONEG_ENABLE : AUTONEG_DISABLE);

	switch (hw->phy.media_type) {
	case I40E_MEDIA_TYPE_BACKPLANE:
		ecmd->supported |= SUPPORTED_Backplane;
		ecmd->advertising |= ADVERTISED_Backplane;
		ecmd->port = PORT_NONE;
		break;
	case I40E_MEDIA_TYPE_BASET:
		ecmd->supported |= SUPPORTED_TP;
		ecmd->advertising |= ADVERTISED_TP;
		ecmd->port = PORT_TP;
		break;
	case I40E_MEDIA_TYPE_DA:
	case I40E_MEDIA_TYPE_CX4:
		ecmd->supported |= SUPPORTED_FIBRE;
		ecmd->advertising |= ADVERTISED_FIBRE;
		ecmd->port = PORT_DA;
		break;
	case I40E_MEDIA_TYPE_FIBER:
		ecmd->supported |= SUPPORTED_FIBRE;
		ecmd->advertising |= ADVERTISED_FIBRE;
		ecmd->port = PORT_FIBRE;
		break;
	case I40E_MEDIA_TYPE_UNKNOWN:
	default:
		ecmd->port = PORT_OTHER;
		break;
	}

	ecmd->transceiver = XCVR_EXTERNAL;

	if (link_up) {
		switch (link_speed) {
		case I40E_LINK_SPEED_40GB:
			/* need a SPEED_40000 in ethtool.h */
			ethtool_cmd_speed_set(ecmd, 40000);
			break;
		case I40E_LINK_SPEED_10GB:
			ethtool_cmd_speed_set(ecmd, SPEED_10000);
			break;
		default:
			break;
		}
		ecmd->duplex = DUPLEX_FULL;
	} else {
		ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
		ecmd->duplex = DUPLEX_UNKNOWN;
	}

	return 0;
}

/**
 * i40e_get_pauseparam -  Get Flow Control status
 * Return tx/rx-pause status
 **/
static void i40e_get_pauseparam(struct net_device *netdev,
				struct ethtool_pauseparam *pause)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_hw *hw = &pf->hw;
	struct i40e_link_status *hw_link_info = &hw->phy.link_info;

	pause->autoneg =
		((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
		  AUTONEG_ENABLE : AUTONEG_DISABLE);

	if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
		pause->rx_pause = 1;
	} else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
		pause->tx_pause = 1;
	} else if (hw->fc.current_mode == I40E_FC_FULL) {
		pause->rx_pause = 1;
		pause->tx_pause = 1;
	}
}

static u32 i40e_get_msglevel(struct net_device *netdev)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;

	return pf->msg_enable;
}

static void i40e_set_msglevel(struct net_device *netdev, u32 data)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;

	if (I40E_DEBUG_USER & data)
		pf->hw.debug_mask = data;
	pf->msg_enable = data;
}

static int i40e_get_regs_len(struct net_device *netdev)
{
	int reg_count = 0;
	int i;

	for (i = 0; i40e_reg_list[i].offset != 0; i++)
		reg_count += i40e_reg_list[i].elements;

	return reg_count * sizeof(u32);
}

static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
			  void *p)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_hw *hw = &pf->hw;
	u32 *reg_buf = p;
	int i, j, ri;
	u32 reg;

	/* Tell ethtool which driver-version-specific regs output we have.
	 *
	 * At some point, if we have ethtool doing special formatting of
	 * this data, it will rely on this version number to know how to
	 * interpret things.  Hence, this needs to be updated if/when the
	 * diags register table is changed.
	 */
	regs->version = 1;

	/* loop through the diags reg table for what to print */
	ri = 0;
	for (i = 0; i40e_reg_list[i].offset != 0; i++) {
		for (j = 0; j < i40e_reg_list[i].elements; j++) {
			reg = i40e_reg_list[i].offset
				+ (j * i40e_reg_list[i].stride);
			reg_buf[ri++] = rd32(hw, reg);
		}
	}

}

static int i40e_get_eeprom(struct net_device *netdev,
			   struct ethtool_eeprom *eeprom, u8 *bytes)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_hw *hw = &np->vsi->back->hw;
	struct i40e_pf *pf = np->vsi->back;
	int ret_val = 0, len;
	u8 *eeprom_buff;
	u16 i, sectors;
	bool last;
#define I40E_NVM_SECTOR_SIZE  4096
	if (eeprom->len == 0)
		return -EINVAL;

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

	eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
	if (!eeprom_buff)
		return -ENOMEM;

	ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
	if (ret_val) {
		dev_info(&pf->pdev->dev,
			 "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
			 ret_val, hw->aq.asq_last_status);
		goto free_buff;
	}

	sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
	sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
	len = I40E_NVM_SECTOR_SIZE;
	last = false;
	for (i = 0; i < sectors; i++) {
		if (i == (sectors - 1)) {
			len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
			last = true;
		}
		ret_val = i40e_aq_read_nvm(hw, 0x0,
				eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
				len,
				(u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
				last, NULL);
		if (ret_val) {
			dev_info(&pf->pdev->dev,
				 "read NVM failed err=%d status=0x%x\n",
				 ret_val, hw->aq.asq_last_status);
			goto release_nvm;
		}
	}

release_nvm:
	i40e_release_nvm(hw);
	memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
free_buff:
	kfree(eeprom_buff);
	return ret_val;
}

static int i40e_get_eeprom_len(struct net_device *netdev)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_hw *hw = &np->vsi->back->hw;
	u32 val;

	val = (rd32(hw, I40E_GLPCI_LBARCTRL)
		& I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
		>> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
	/* register returns value in power of 2, 64Kbyte chunks. */
	val = (64 * 1024) * (1 << val);
	return val;
}

static void i40e_get_drvinfo(struct net_device *netdev,
			     struct ethtool_drvinfo *drvinfo)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;

	strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
	strlcpy(drvinfo->version, i40e_driver_version_str,
		sizeof(drvinfo->version));
	strlcpy(drvinfo->fw_version, i40e_fw_version_str(&pf->hw),
		sizeof(drvinfo->fw_version));
	strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
		sizeof(drvinfo->bus_info));
}

static void i40e_get_ringparam(struct net_device *netdev,
			       struct ethtool_ringparam *ring)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];

	ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
	ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
	ring->rx_mini_max_pending = 0;
	ring->rx_jumbo_max_pending = 0;
	ring->rx_pending = vsi->rx_rings[0]->count;
	ring->tx_pending = vsi->tx_rings[0]->count;
	ring->rx_mini_pending = 0;
	ring->rx_jumbo_pending = 0;
}

static int i40e_set_ringparam(struct net_device *netdev,
			      struct ethtool_ringparam *ring)
{
	struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	u32 new_rx_count, new_tx_count;
	int i, err = 0;

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

	if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
	    ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
	    ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
	    ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
		netdev_info(netdev,
			    "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
			    ring->tx_pending, ring->rx_pending,
			    I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
		return -EINVAL;
	}

	new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
	new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);

	/* if nothing to do return success */
	if ((new_tx_count == vsi->tx_rings[0]->count) &&
	    (new_rx_count == vsi->rx_rings[0]->count))
		return 0;

	while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
		usleep_range(1000, 2000);

	if (!netif_running(vsi->netdev)) {
		/* simple case - set for the next time the netdev is started */
		for (i = 0; i < vsi->num_queue_pairs; i++) {
			vsi->tx_rings[i]->count = new_tx_count;
			vsi->rx_rings[i]->count = new_rx_count;
		}
		goto done;
	}

	/* We can't just free everything and then setup again,
	 * because the ISRs in MSI-X mode get passed pointers
	 * to the Tx and Rx ring structs.
	 */

	/* alloc updated Tx resources */
	if (new_tx_count != vsi->tx_rings[0]->count) {
		netdev_info(netdev,
			    "Changing Tx descriptor count from %d to %d.\n",
			    vsi->tx_rings[0]->count, new_tx_count);
		tx_rings = kcalloc(vsi->alloc_queue_pairs,
				   sizeof(struct i40e_ring), GFP_KERNEL);
		if (!tx_rings) {
			err = -ENOMEM;
			goto done;
		}

		for (i = 0; i < vsi->num_queue_pairs; i++) {
			/* clone ring and setup updated count */
			tx_rings[i] = *vsi->tx_rings[i];
			tx_rings[i].count = new_tx_count;
			err = i40e_setup_tx_descriptors(&tx_rings[i]);
			if (err) {
				while (i) {
					i--;
					i40e_free_tx_resources(&tx_rings[i]);
				}
				kfree(tx_rings);
				tx_rings = NULL;

				goto done;
			}
		}
	}

	/* alloc updated Rx resources */
	if (new_rx_count != vsi->rx_rings[0]->count) {
		netdev_info(netdev,
			    "Changing Rx descriptor count from %d to %d\n",
			    vsi->rx_rings[0]->count, new_rx_count);
		rx_rings = kcalloc(vsi->alloc_queue_pairs,
				   sizeof(struct i40e_ring), GFP_KERNEL);
		if (!rx_rings) {
			err = -ENOMEM;
			goto free_tx;
		}

		for (i = 0; i < vsi->num_queue_pairs; i++) {
			/* clone ring and setup updated count */
			rx_rings[i] = *vsi->rx_rings[i];
			rx_rings[i].count = new_rx_count;
			err = i40e_setup_rx_descriptors(&rx_rings[i]);
			if (err) {
				while (i) {
					i--;
					i40e_free_rx_resources(&rx_rings[i]);
				}
				kfree(rx_rings);
				rx_rings = NULL;

				goto free_tx;
			}
		}
	}

	/* Bring interface down, copy in the new ring info,
	 * then restore the interface
	 */
	i40e_down(vsi);

	if (tx_rings) {
		for (i = 0; i < vsi->num_queue_pairs; i++) {
			i40e_free_tx_resources(vsi->tx_rings[i]);
			*vsi->tx_rings[i] = tx_rings[i];
		}
		kfree(tx_rings);
		tx_rings = NULL;
	}

	if (rx_rings) {
		for (i = 0; i < vsi->num_queue_pairs; i++) {
			i40e_free_rx_resources(vsi->rx_rings[i]);
			*vsi->rx_rings[i] = rx_rings[i];
		}
		kfree(rx_rings);
		rx_rings = NULL;
	}

	i40e_up(vsi);

free_tx:
	/* error cleanup if the Rx allocations failed after getting Tx */
	if (tx_rings) {
		for (i = 0; i < vsi->num_queue_pairs; i++)
			i40e_free_tx_resources(&tx_rings[i]);
		kfree(tx_rings);
		tx_rings = NULL;
	}

done:
	clear_bit(__I40E_CONFIG_BUSY, &pf->state);

	return err;
}

static int i40e_get_sset_count(struct net_device *netdev, int sset)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;

	switch (sset) {
	case ETH_SS_TEST:
		return I40E_TEST_LEN;
	case ETH_SS_STATS:
		if (vsi == pf->vsi[pf->lan_vsi])
			return I40E_PF_STATS_LEN(netdev);
		else
			return I40E_VSI_STATS_LEN(netdev);
	default:
		return -EOPNOTSUPP;
	}
}

static void i40e_get_ethtool_stats(struct net_device *netdev,
				   struct ethtool_stats *stats, u64 *data)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	int i = 0;
	char *p;
	int j;
	struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
	unsigned int start;

	i40e_update_stats(vsi);

	for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
		p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
		data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
	}
	rcu_read_lock();
	for (j = 0; j < vsi->num_queue_pairs; j++, i += 4) {
		struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
		struct i40e_ring *rx_ring;

		if (!tx_ring)
			continue;

		/* process Tx ring statistics */
		do {
			start = u64_stats_fetch_begin_bh(&tx_ring->syncp);
			data[i] = tx_ring->stats.packets;
			data[i + 1] = tx_ring->stats.bytes;
		} while (u64_stats_fetch_retry_bh(&tx_ring->syncp, start));

		/* Rx ring is the 2nd half of the queue pair */
		rx_ring = &tx_ring[1];
		do {
			start = u64_stats_fetch_begin_bh(&rx_ring->syncp);
			data[i + 2] = rx_ring->stats.packets;
			data[i + 3] = rx_ring->stats.bytes;
		} while (u64_stats_fetch_retry_bh(&rx_ring->syncp, start));
	}
	rcu_read_unlock();
	if (vsi == pf->vsi[pf->lan_vsi]) {
		for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
			p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
			data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
				   sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
		}
		for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
			data[i++] = pf->stats.priority_xon_tx[j];
			data[i++] = pf->stats.priority_xoff_tx[j];
		}
		for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
			data[i++] = pf->stats.priority_xon_rx[j];
			data[i++] = pf->stats.priority_xoff_rx[j];
		}
		for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
			data[i++] = pf->stats.priority_xon_2_xoff[j];
	}
}

static void i40e_get_strings(struct net_device *netdev, u32 stringset,
			     u8 *data)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	char *p = (char *)data;
	int i;

	switch (stringset) {
	case ETH_SS_TEST:
		for (i = 0; i < I40E_TEST_LEN; i++) {
			memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
			data += ETH_GSTRING_LEN;
		}
		break;
	case ETH_SS_STATS:
		for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
			snprintf(p, ETH_GSTRING_LEN, "%s",
				 i40e_gstrings_net_stats[i].stat_string);
			p += ETH_GSTRING_LEN;
		}
		for (i = 0; i < vsi->num_queue_pairs; i++) {
			snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
			p += ETH_GSTRING_LEN;
			snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
			p += ETH_GSTRING_LEN;
			snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
			p += ETH_GSTRING_LEN;
			snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
			p += ETH_GSTRING_LEN;
		}
		if (vsi == pf->vsi[pf->lan_vsi]) {
			for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
				snprintf(p, ETH_GSTRING_LEN, "port.%s",
					 i40e_gstrings_stats[i].stat_string);
				p += ETH_GSTRING_LEN;
			}
			for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
				snprintf(p, ETH_GSTRING_LEN,
					 "port.tx_priority_%u_xon", i);
				p += ETH_GSTRING_LEN;
				snprintf(p, ETH_GSTRING_LEN,
					 "port.tx_priority_%u_xoff", i);
				p += ETH_GSTRING_LEN;
			}
			for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
				snprintf(p, ETH_GSTRING_LEN,
					 "port.rx_priority_%u_xon", i);
				p += ETH_GSTRING_LEN;
				snprintf(p, ETH_GSTRING_LEN,
					 "port.rx_priority_%u_xoff", i);
				p += ETH_GSTRING_LEN;
			}
			for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
				snprintf(p, ETH_GSTRING_LEN,
					 "port.rx_priority_%u_xon_2_xoff", i);
				p += ETH_GSTRING_LEN;
			}
		}
		/* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
		break;
	}
}

static int i40e_get_ts_info(struct net_device *dev,
			    struct ethtool_ts_info *info)
{
	struct i40e_pf *pf = i40e_netdev_to_pf(dev);

	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 (pf->ptp_clock)
		info->phc_index = ptp_clock_index(pf->ptp_clock);
	else
		info->phc_index = -1;

	info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);

	info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
			   (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
			   (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
			   (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
			   (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
			   (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
			   (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
			   (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
			   (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
			   (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
			   (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
			   (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);

	return 0;
}

static int i40e_link_test(struct net_device *netdev, u64 *data)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;

	netif_info(pf, hw, netdev, "link test\n");
	if (i40e_get_link_status(&pf->hw))
		*data = 0;
	else
		*data = 1;

	return *data;
}

static int i40e_reg_test(struct net_device *netdev, u64 *data)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;

	netif_info(pf, hw, netdev, "register test\n");
	*data = i40e_diag_reg_test(&pf->hw);

	return *data;
}

static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;

	netif_info(pf, hw, netdev, "eeprom test\n");
	*data = i40e_diag_eeprom_test(&pf->hw);

	return *data;
}

static int i40e_intr_test(struct net_device *netdev, u64 *data)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	u16 swc_old = pf->sw_int_count;

	netif_info(pf, hw, netdev, "interrupt test\n");
	wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
	     (I40E_PFINT_DYN_CTL0_INTENA_MASK |
	      I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK));
	usleep_range(1000, 2000);
	*data = (swc_old == pf->sw_int_count);

	return *data;
}

static int i40e_loopback_test(struct net_device *netdev, u64 *data)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;

	netif_info(pf, hw, netdev, "loopback test not implemented\n");
	*data = 0;

	return *data;
}

static void i40e_diag_test(struct net_device *netdev,
			   struct ethtool_test *eth_test, u64 *data)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;

	if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
		/* Offline tests */
		netif_info(pf, drv, netdev, "offline testing starting\n");

		set_bit(__I40E_TESTING, &pf->state);

		/* Link test performed before hardware reset
		 * so autoneg doesn't interfere with test result
		 */
		if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		/* run reg test last, a reset is required after it */
		if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		clear_bit(__I40E_TESTING, &pf->state);
		i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
	} else {
		/* Online tests */
		netif_info(pf, drv, netdev, "online testing starting\n");

		if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
			eth_test->flags |= ETH_TEST_FL_FAILED;

		/* Offline only tests, not run in online; pass by default */
		data[I40E_ETH_TEST_REG] = 0;
		data[I40E_ETH_TEST_EEPROM] = 0;
		data[I40E_ETH_TEST_INTR] = 0;
		data[I40E_ETH_TEST_LOOPBACK] = 0;
	}

	netif_info(pf, drv, netdev, "testing finished\n");
}

static void i40e_get_wol(struct net_device *netdev,
			 struct ethtool_wolinfo *wol)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_hw *hw = &pf->hw;
	u16 wol_nvm_bits;

	/* NVM bit on means WoL disabled for the port */
	i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
	if ((1 << hw->port) & wol_nvm_bits) {
		wol->supported = 0;
		wol->wolopts = 0;
	} else {
		wol->supported = WAKE_MAGIC;
		wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
	}
}

static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_hw *hw = &pf->hw;
	u16 wol_nvm_bits;

	/* NVM bit on means WoL disabled for the port */
	i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
	if (((1 << hw->port) & wol_nvm_bits))
		return -EOPNOTSUPP;

	/* only magic packet is supported */
	if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
		return -EOPNOTSUPP;

	/* is this a new value? */
	if (pf->wol_en != !!wol->wolopts) {
		pf->wol_en = !!wol->wolopts;
		device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
	}

	return 0;
}

static int i40e_nway_reset(struct net_device *netdev)
{
	/* restart autonegotiation */
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_hw *hw = &pf->hw;
	i40e_status ret = 0;

	ret = i40e_aq_set_link_restart_an(hw, NULL);
	if (ret) {
		netdev_info(netdev, "link restart failed, aq_err=%d\n",
			    pf->hw.aq.asq_last_status);
		return -EIO;
	}

	return 0;
}

static int i40e_set_phys_id(struct net_device *netdev,
			    enum ethtool_phys_id_state state)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_pf *pf = np->vsi->back;
	struct i40e_hw *hw = &pf->hw;
	int blink_freq = 2;

	switch (state) {
	case ETHTOOL_ID_ACTIVE:
		pf->led_status = i40e_led_get(hw);
		return blink_freq;
	case ETHTOOL_ID_ON:
		i40e_led_set(hw, 0xF, false);
		break;
	case ETHTOOL_ID_OFF:
		i40e_led_set(hw, 0x0, false);
		break;
	case ETHTOOL_ID_INACTIVE:
		i40e_led_set(hw, pf->led_status, false);
		break;
	}

	return 0;
}

/* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
 * 125us (8000 interrupts per second) == ITR(62)
 */

static int i40e_get_coalesce(struct net_device *netdev,
			     struct ethtool_coalesce *ec)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;

	ec->tx_max_coalesced_frames_irq = vsi->work_limit;
	ec->rx_max_coalesced_frames_irq = vsi->work_limit;

	if (ITR_IS_DYNAMIC(vsi->rx_itr_setting))
		ec->rx_coalesce_usecs = 1;
	else
		ec->rx_coalesce_usecs = vsi->rx_itr_setting;

	if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
		ec->tx_coalesce_usecs = 1;
	else
		ec->tx_coalesce_usecs = vsi->tx_itr_setting;

	return 0;
}

static int i40e_set_coalesce(struct net_device *netdev,
			     struct ethtool_coalesce *ec)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_q_vector *q_vector;
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	struct i40e_hw *hw = &pf->hw;
	u16 vector;
	int i;

	if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
		vsi->work_limit = ec->tx_max_coalesced_frames_irq;

	switch (ec->rx_coalesce_usecs) {
	case 0:
		vsi->rx_itr_setting = 0;
		break;
	case 1:
		vsi->rx_itr_setting = (I40E_ITR_DYNAMIC |
				       ITR_REG_TO_USEC(I40E_ITR_RX_DEF));
		break;
	default:
		if ((ec->rx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
		    (ec->rx_coalesce_usecs > (I40E_MAX_ITR << 1)))
			return -EINVAL;
		vsi->rx_itr_setting = ec->rx_coalesce_usecs;
		break;
	}

	switch (ec->tx_coalesce_usecs) {
	case 0:
		vsi->tx_itr_setting = 0;
		break;
	case 1:
		vsi->tx_itr_setting = (I40E_ITR_DYNAMIC |
				       ITR_REG_TO_USEC(I40E_ITR_TX_DEF));
		break;
	default:
		if ((ec->tx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
		    (ec->tx_coalesce_usecs > (I40E_MAX_ITR << 1)))
			return -EINVAL;
		vsi->tx_itr_setting = ec->tx_coalesce_usecs;
		break;
	}

	vector = vsi->base_vector;
	for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
		q_vector = vsi->q_vectors[i];
		q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
		wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
		q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
		wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr);
		i40e_flush(hw);
	}

	return 0;
}

/**
 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
 * @pf: pointer to the physical function struct
 * @cmd: ethtool rxnfc command
 *
 * Returns Success if the flow is supported, else Invalid Input.
 **/
static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
{
	cmd->data = 0;

	/* Report default options for RSS on i40e */
	switch (cmd->flow_type) {
	case TCP_V4_FLOW:
	case UDP_V4_FLOW:
		cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
	/* fall through to add IP fields */
	case SCTP_V4_FLOW:
	case AH_ESP_V4_FLOW:
	case AH_V4_FLOW:
	case ESP_V4_FLOW:
	case IPV4_FLOW:
		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
		break;
	case TCP_V6_FLOW:
	case UDP_V6_FLOW:
		cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
	/* fall through to add IP fields */
	case SCTP_V6_FLOW:
	case AH_ESP_V6_FLOW:
	case AH_V6_FLOW:
	case ESP_V6_FLOW:
	case IPV6_FLOW:
		cmd->data |= RXH_IP_SRC | RXH_IP_DST;
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

/**
 * i40e_get_ethtool_fdir_all - Populates the rule count of a command
 * @pf: Pointer to the physical function struct
 * @cmd: The command to get or set Rx flow classification rules
 * @rule_locs: Array of used rule locations
 *
 * This function populates both the total and actual rule count of
 * the ethtool flow classification command
 *
 * Returns 0 on success or -EMSGSIZE if entry not found
 **/
static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
				     struct ethtool_rxnfc *cmd,
				     u32 *rule_locs)
{
	struct i40e_fdir_filter *rule;
	struct hlist_node *node2;
	int cnt = 0;

	/* report total rule count */
	cmd->data = pf->hw.fdir_shared_filter_count +
		    pf->fdir_pf_filter_count;

	hlist_for_each_entry_safe(rule, node2,
				  &pf->fdir_filter_list, fdir_node) {
		if (cnt == cmd->rule_cnt)
			return -EMSGSIZE;

		rule_locs[cnt] = rule->fd_id;
		cnt++;
	}

	cmd->rule_cnt = cnt;

	return 0;
}

/**
 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
 * @pf: Pointer to the physical function struct
 * @cmd: The command to get or set Rx flow classification rules
 *
 * This function looks up a filter based on the Rx flow classification
 * command and fills the flow spec info for it if found
 *
 * Returns 0 on success or -EINVAL if filter not found
 **/
static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
				       struct ethtool_rxnfc *cmd)
{
	struct ethtool_rx_flow_spec *fsp =
			(struct ethtool_rx_flow_spec *)&cmd->fs;
	struct i40e_fdir_filter *rule = NULL;
	struct hlist_node *node2;

	/* report total rule count */
	cmd->data = pf->hw.fdir_shared_filter_count +
		    pf->fdir_pf_filter_count;

	hlist_for_each_entry_safe(rule, node2,
				  &pf->fdir_filter_list, fdir_node) {
		if (fsp->location <= rule->fd_id)
			break;
	}

	if (!rule || fsp->location != rule->fd_id)
		return -EINVAL;

	fsp->flow_type = rule->flow_type;
	fsp->h_u.tcp_ip4_spec.psrc = rule->src_port;
	fsp->h_u.tcp_ip4_spec.pdst = rule->dst_port;
	fsp->h_u.tcp_ip4_spec.ip4src = rule->src_ip[0];
	fsp->h_u.tcp_ip4_spec.ip4dst = rule->dst_ip[0];
	fsp->ring_cookie = rule->q_index;

	return 0;
}

/**
 * i40e_get_rxnfc - command to get RX flow classification rules
 * @netdev: network interface device structure
 * @cmd: ethtool rxnfc command
 *
 * Returns Success if the command is supported.
 **/
static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
			  u32 *rule_locs)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	int ret = -EOPNOTSUPP;

	switch (cmd->cmd) {
	case ETHTOOL_GRXRINGS:
		cmd->data = vsi->alloc_queue_pairs;
		ret = 0;
		break;
	case ETHTOOL_GRXFH:
		ret = i40e_get_rss_hash_opts(pf, cmd);
		break;
	case ETHTOOL_GRXCLSRLCNT:
		cmd->rule_cnt = pf->fdir_pf_active_filters;
		ret = 0;
		break;
	case ETHTOOL_GRXCLSRULE:
		ret = i40e_get_ethtool_fdir_entry(pf, cmd);
		break;
	case ETHTOOL_GRXCLSRLALL:
		ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
		break;
	default:
		break;
	}

	return ret;
}

/**
 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
 * @pf: pointer to the physical function struct
 * @cmd: ethtool rxnfc command
 *
 * Returns Success if the flow input set is supported.
 **/
static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
{
	struct i40e_hw *hw = &pf->hw;
	u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
		   ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);

	/* RSS does not support anything other than hashing
	 * to queues on src and dst IPs and ports
	 */
	if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
			  RXH_L4_B_0_1 | RXH_L4_B_2_3))
		return -EINVAL;

	/* We need at least the IP SRC and DEST fields for hashing */
	if (!(nfc->data & RXH_IP_SRC) ||
	    !(nfc->data & RXH_IP_DST))
		return -EINVAL;

	switch (nfc->flow_type) {
	case TCP_V4_FLOW:
		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
		case 0:
			hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
			break;
		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
			hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
			break;
		default:
			return -EINVAL;
		}
		break;
	case TCP_V6_FLOW:
		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
		case 0:
			hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
			break;
		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
			hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
			break;
		default:
			return -EINVAL;
		}
		break;
	case UDP_V4_FLOW:
		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
		case 0:
			hena &=
			~(((u64)1 << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
			((u64)1 << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP) |
			((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
			break;
		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
			hena |=
			(((u64)1 << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP)  |
			((u64)1 << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP) |
			((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
			break;
		default:
			return -EINVAL;
		}
		break;
	case UDP_V6_FLOW:
		switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
		case 0:
			hena &=
			~(((u64)1 << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
			((u64)1 << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP) |
			((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
			break;
		case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
			hena |=
			(((u64)1 << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP)  |
			((u64)1 << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP) |
			((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
			break;
		default:
			return -EINVAL;
		}
		break;
	case AH_ESP_V4_FLOW:
	case AH_V4_FLOW:
	case ESP_V4_FLOW:
	case SCTP_V4_FLOW:
		if ((nfc->data & RXH_L4_B_0_1) ||
		    (nfc->data & RXH_L4_B_2_3))
			return -EINVAL;
		hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
		break;
	case AH_ESP_V6_FLOW:
	case AH_V6_FLOW:
	case ESP_V6_FLOW:
	case SCTP_V6_FLOW:
		if ((nfc->data & RXH_L4_B_0_1) ||
		    (nfc->data & RXH_L4_B_2_3))
			return -EINVAL;
		hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
		break;
	case IPV4_FLOW:
		hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
			((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4);
		break;
	case IPV6_FLOW:
		hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
			((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6);
		break;
	default:
		return -EINVAL;
	}

	wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
	wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
	i40e_flush(hw);

	return 0;
}

/**
 * i40e_match_fdir_input_set - Match a new filter against an existing one
 * @rule: The filter already added
 * @input: The new filter to comapre against
 *
 * Returns true if the two input set match
 **/
static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
				      struct i40e_fdir_filter *input)
{
	if ((rule->dst_ip[0] != input->dst_ip[0]) ||
	    (rule->src_ip[0] != input->src_ip[0]) ||
	    (rule->dst_port != input->dst_port) ||
	    (rule->src_port != input->src_port))
		return false;
	return true;
}

/**
 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
 * @vsi: Pointer to the targeted VSI
 * @input: The filter to update or NULL to indicate deletion
 * @sw_idx: Software index to the filter
 * @cmd: The command to get or set Rx flow classification rules
 *
 * This function updates (or deletes) a Flow Director entry from
 * the hlist of the corresponding PF
 *
 * Returns 0 on success
 **/
static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
					  struct i40e_fdir_filter *input,
					  u16 sw_idx,
					  struct ethtool_rxnfc *cmd)
{
	struct i40e_fdir_filter *rule, *parent;
	struct i40e_pf *pf = vsi->back;
	struct hlist_node *node2;
	int err = -EINVAL;

	parent = NULL;
	rule = NULL;

	hlist_for_each_entry_safe(rule, node2,
				  &pf->fdir_filter_list, fdir_node) {
		/* hash found, or no matching entry */
		if (rule->fd_id >= sw_idx)
			break;
		parent = rule;
	}

	/* if there is an old rule occupying our place remove it */
	if (rule && (rule->fd_id == sw_idx)) {
		if (input && !i40e_match_fdir_input_set(rule, input))
			err = i40e_add_del_fdir(vsi, rule, false);
		else if (!input)
			err = i40e_add_del_fdir(vsi, rule, false);
		hlist_del(&rule->fdir_node);
		kfree(rule);
		pf->fdir_pf_active_filters--;
	}

	/* If no input this was a delete, err should be 0 if a rule was
	 * successfully found and removed from the list else -EINVAL
	 */
	if (!input)
		return err;

	/* initialize node and set software index */
	INIT_HLIST_NODE(&input->fdir_node);

	/* add filter to the list */
	if (parent)
		hlist_add_after(&parent->fdir_node, &input->fdir_node);
	else
		hlist_add_head(&input->fdir_node,
			       &pf->fdir_filter_list);

	/* update counts */
	pf->fdir_pf_active_filters++;

	return 0;
}

/**
 * i40e_del_fdir_entry - Deletes a Flow Director filter entry
 * @vsi: Pointer to the targeted VSI
 * @cmd: The command to get or set Rx flow classification rules
 *
 * The function removes a Flow Director filter entry from the
 * hlist of the corresponding PF
 *
 * Returns 0 on success
 */
static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
			       struct ethtool_rxnfc *cmd)
{
	struct ethtool_rx_flow_spec *fsp =
		(struct ethtool_rx_flow_spec *)&cmd->fs;
	struct i40e_pf *pf = vsi->back;
	int ret = 0;

	ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);

	i40e_fdir_check_and_reenable(pf);
	return ret;
}

/**
 * i40e_add_del_fdir_ethtool - Add/Remove Flow Director filters
 * @vsi: pointer to the targeted VSI
 * @cmd: command to get or set RX flow classification rules
 * @add: true adds a filter, false removes it
 *
 * Add/Remove Flow Director filters for a specific flow spec based on their
 * protocol.  Returns 0 if the filters were successfully added or removed.
 **/
static int i40e_add_del_fdir_ethtool(struct i40e_vsi *vsi,
				     struct ethtool_rxnfc *cmd, bool add)
{
	struct ethtool_rx_flow_spec *fsp;
	struct i40e_fdir_filter *input;
	struct i40e_pf *pf;
	int ret = -EINVAL;

	if (!vsi)
		return -EINVAL;

	pf = vsi->back;

	if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
		return -EOPNOTSUPP;

	if (add && (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED))
		return -ENOSPC;

	fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;

	if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
			      pf->hw.func_caps.fd_filters_guaranteed)) {
		return -EINVAL;
	}

	if ((fsp->ring_cookie >= vsi->num_queue_pairs) && add)
		return -EINVAL;

	input = kzalloc(sizeof(*input), GFP_KERNEL);

	if (!input)
		return -ENOMEM;

	input->fd_id = fsp->location;

	input->q_index = fsp->ring_cookie;
	input->flex_off = 0;
	input->pctype = 0;
	input->dest_vsi = vsi->id;
	input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
	input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
	input->cnt_index = 0;
	input->flow_type = fsp->flow_type;
	input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
	input->src_port = fsp->h_u.tcp_ip4_spec.psrc;
	input->dst_port = fsp->h_u.tcp_ip4_spec.pdst;
	input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
	input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;

	ret = i40e_add_del_fdir(vsi, input, add);
	if (ret) {
		kfree(input);
		return ret;
	}

	if (!ret && add)
		i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
	else
		kfree(input);

	return ret;
}

/**
 * i40e_set_rxnfc - command to set RX flow classification rules
 * @netdev: network interface device structure
 * @cmd: ethtool rxnfc command
 *
 * Returns Success if the command is supported.
 **/
static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
{
	struct i40e_netdev_priv *np = netdev_priv(netdev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	int ret = -EOPNOTSUPP;

	switch (cmd->cmd) {
	case ETHTOOL_SRXFH:
		ret = i40e_set_rss_hash_opt(pf, cmd);
		break;
	case ETHTOOL_SRXCLSRLINS:
		ret = i40e_add_del_fdir_ethtool(vsi, cmd, true);
		break;
	case ETHTOOL_SRXCLSRLDEL:
		ret = i40e_del_fdir_entry(vsi, cmd);
		break;
	default:
		break;
	}

	return ret;
}

/**
 * i40e_max_channels - get Max number of combined channels supported
 * @vsi: vsi pointer
 **/
static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
{
	/* TODO: This code assumes DCB and FD is disabled for now. */
	return vsi->alloc_queue_pairs;
}

/**
 * i40e_get_channels - Get the current channels enabled and max supported etc.
 * @netdev: network interface device structure
 * @ch: ethtool channels structure
 *
 * We don't support separate tx and rx queues as channels. The other count
 * represents how many queues are being used for control. max_combined counts
 * how many queue pairs we can support. They may not be mapped 1 to 1 with
 * q_vectors since we support a lot more queue pairs than q_vectors.
 **/
static void i40e_get_channels(struct net_device *dev,
			       struct ethtool_channels *ch)
{
	struct i40e_netdev_priv *np = netdev_priv(dev);
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;

	/* report maximum channels */
	ch->max_combined = i40e_max_channels(vsi);

	/* report info for other vector */
	ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
	ch->max_other = ch->other_count;

	/* Note: This code assumes DCB is disabled for now. */
	ch->combined_count = vsi->num_queue_pairs;
}

/**
 * i40e_set_channels - Set the new channels count.
 * @netdev: network interface device structure
 * @ch: ethtool channels structure
 *
 * The new channels count may not be the same as requested by the user
 * since it gets rounded down to a power of 2 value.
 **/
static int i40e_set_channels(struct net_device *dev,
			      struct ethtool_channels *ch)
{
	struct i40e_netdev_priv *np = netdev_priv(dev);
	unsigned int count = ch->combined_count;
	struct i40e_vsi *vsi = np->vsi;
	struct i40e_pf *pf = vsi->back;
	int new_count;

	/* We do not support setting channels for any other VSI at present */
	if (vsi->type != I40E_VSI_MAIN)
		return -EINVAL;

	/* verify they are not requesting separate vectors */
	if (!count || ch->rx_count || ch->tx_count)
		return -EINVAL;

	/* verify other_count has not changed */
	if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
		return -EINVAL;

	/* verify the number of channels does not exceed hardware limits */
	if (count > i40e_max_channels(vsi))
		return -EINVAL;

	/* update feature limits from largest to smallest supported values */
	/* TODO: Flow director limit, DCB etc */

	/* cap RSS limit */
	if (count > pf->rss_size_max)
		count = pf->rss_size_max;

	/* use rss_reconfig to rebuild with new queue count and update traffic
	 * class queue mapping
	 */
	new_count = i40e_reconfig_rss_queues(pf, count);
	if (new_count > 0)
		return 0;
	else
		return -EINVAL;
}

static const struct ethtool_ops i40e_ethtool_ops = {
	.get_settings		= i40e_get_settings,
	.get_drvinfo		= i40e_get_drvinfo,
	.get_regs_len		= i40e_get_regs_len,
	.get_regs		= i40e_get_regs,
	.nway_reset		= i40e_nway_reset,
	.get_link		= ethtool_op_get_link,
	.get_wol		= i40e_get_wol,
	.set_wol		= i40e_set_wol,
	.get_eeprom_len		= i40e_get_eeprom_len,
	.get_eeprom		= i40e_get_eeprom,
	.get_ringparam		= i40e_get_ringparam,
	.set_ringparam		= i40e_set_ringparam,
	.get_pauseparam		= i40e_get_pauseparam,
	.get_msglevel		= i40e_get_msglevel,
	.set_msglevel		= i40e_set_msglevel,
	.get_rxnfc		= i40e_get_rxnfc,
	.set_rxnfc		= i40e_set_rxnfc,
	.self_test		= i40e_diag_test,
	.get_strings		= i40e_get_strings,
	.set_phys_id		= i40e_set_phys_id,
	.get_sset_count		= i40e_get_sset_count,
	.get_ethtool_stats	= i40e_get_ethtool_stats,
	.get_coalesce		= i40e_get_coalesce,
	.set_coalesce		= i40e_set_coalesce,
	.get_channels		= i40e_get_channels,
	.set_channels		= i40e_set_channels,
	.get_ts_info		= i40e_get_ts_info,
};

void i40e_set_ethtool_ops(struct net_device *netdev)
{
	SET_ETHTOOL_OPS(netdev, &i40e_ethtool_ops);
}