summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
blob: 52273f7eab2c4eeab5ebbb3b5876809cd552a374 (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
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
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2013 - 2018 Intel Corporation. */

#include <linux/bitfield.h>
#include <linux/uaccess.h>

/* ethtool support for iavf */
#include "iavf.h"

/* ethtool statistics helpers */

/**
 * struct iavf_stats - definition for an ethtool statistic
 * @stat_string: statistic name to display in ethtool -S output
 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64)
 * @stat_offset: offsetof() the stat from a base pointer
 *
 * This structure defines a statistic to be added to the ethtool stats buffer.
 * It defines a statistic as offset from a common base pointer. Stats should
 * be defined in constant arrays using the IAVF_STAT macro, with every element
 * of the array using the same _type for calculating the sizeof_stat and
 * stat_offset.
 *
 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or
 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from
 * the iavf_add_ethtool_stat() helper function.
 *
 * The @stat_string is interpreted as a format string, allowing formatted
 * values to be inserted while looping over multiple structures for a given
 * statistics array. Thus, every statistic string in an array should have the
 * same type and number of format specifiers, to be formatted by variadic
 * arguments to the iavf_add_stat_string() helper function.
 **/
struct iavf_stats {
	char stat_string[ETH_GSTRING_LEN];
	int sizeof_stat;
	int stat_offset;
};

/* Helper macro to define an iavf_stat structure with proper size and type.
 * Use this when defining constant statistics arrays. Note that @_type expects
 * only a type name and is used multiple times.
 */
#define IAVF_STAT(_type, _name, _stat) { \
	.stat_string = _name, \
	.sizeof_stat = sizeof_field(_type, _stat), \
	.stat_offset = offsetof(_type, _stat) \
}

/* Helper macro for defining some statistics related to queues */
#define IAVF_QUEUE_STAT(_name, _stat) \
	IAVF_STAT(struct iavf_ring, _name, _stat)

/* Stats associated with a Tx or Rx ring */
static const struct iavf_stats iavf_gstrings_queue_stats[] = {
	IAVF_QUEUE_STAT("%s-%u.packets", stats.packets),
	IAVF_QUEUE_STAT("%s-%u.bytes", stats.bytes),
};

/**
 * iavf_add_one_ethtool_stat - copy the stat into the supplied buffer
 * @data: location to store the stat value
 * @pointer: basis for where to copy from
 * @stat: the stat definition
 *
 * Copies the stat data defined by the pointer and stat structure pair into
 * the memory supplied as data. Used to implement iavf_add_ethtool_stats and
 * iavf_add_queue_stats. If the pointer is null, data will be zero'd.
 */
static void
iavf_add_one_ethtool_stat(u64 *data, void *pointer,
			  const struct iavf_stats *stat)
{
	char *p;

	if (!pointer) {
		/* ensure that the ethtool data buffer is zero'd for any stats
		 * which don't have a valid pointer.
		 */
		*data = 0;
		return;
	}

	p = (char *)pointer + stat->stat_offset;
	switch (stat->sizeof_stat) {
	case sizeof(u64):
		*data = *((u64 *)p);
		break;
	case sizeof(u32):
		*data = *((u32 *)p);
		break;
	case sizeof(u16):
		*data = *((u16 *)p);
		break;
	case sizeof(u8):
		*data = *((u8 *)p);
		break;
	default:
		WARN_ONCE(1, "unexpected stat size for %s",
			  stat->stat_string);
		*data = 0;
	}
}

/**
 * __iavf_add_ethtool_stats - copy stats into the ethtool supplied buffer
 * @data: ethtool stats buffer
 * @pointer: location to copy stats from
 * @stats: array of stats to copy
 * @size: the size of the stats definition
 *
 * Copy the stats defined by the stats array using the pointer as a base into
 * the data buffer supplied by ethtool. Updates the data pointer to point to
 * the next empty location for successive calls to __iavf_add_ethtool_stats.
 * If pointer is null, set the data values to zero and update the pointer to
 * skip these stats.
 **/
static void
__iavf_add_ethtool_stats(u64 **data, void *pointer,
			 const struct iavf_stats stats[],
			 const unsigned int size)
{
	unsigned int i;

	for (i = 0; i < size; i++)
		iavf_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
}

/**
 * iavf_add_ethtool_stats - copy stats into ethtool supplied buffer
 * @data: ethtool stats buffer
 * @pointer: location where stats are stored
 * @stats: static const array of stat definitions
 *
 * Macro to ease the use of __iavf_add_ethtool_stats by taking a static
 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
 * ensuring that we pass the size associated with the given stats array.
 *
 * The parameter @stats is evaluated twice, so parameters with side effects
 * should be avoided.
 **/
#define iavf_add_ethtool_stats(data, pointer, stats) \
	__iavf_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))

/**
 * iavf_add_queue_stats - copy queue statistics into supplied buffer
 * @data: ethtool stats buffer
 * @ring: the ring to copy
 *
 * Queue statistics must be copied while protected by
 * u64_stats_fetch_begin, so we can't directly use iavf_add_ethtool_stats.
 * Assumes that queue stats are defined in iavf_gstrings_queue_stats. If the
 * ring pointer is null, zero out the queue stat values and update the data
 * pointer. Otherwise safely copy the stats from the ring into the supplied
 * buffer and update the data pointer when finished.
 *
 * This function expects to be called while under rcu_read_lock().
 **/
static void
iavf_add_queue_stats(u64 **data, struct iavf_ring *ring)
{
	const unsigned int size = ARRAY_SIZE(iavf_gstrings_queue_stats);
	const struct iavf_stats *stats = iavf_gstrings_queue_stats;
	unsigned int start;
	unsigned int i;

	/* To avoid invalid statistics values, ensure that we keep retrying
	 * the copy until we get a consistent value according to
	 * u64_stats_fetch_retry. But first, make sure our ring is
	 * non-null before attempting to access its syncp.
	 */
	do {
		start = !ring ? 0 : u64_stats_fetch_begin(&ring->syncp);
		for (i = 0; i < size; i++)
			iavf_add_one_ethtool_stat(&(*data)[i], ring, &stats[i]);
	} while (ring && u64_stats_fetch_retry(&ring->syncp, start));

	/* Once we successfully copy the stats in, update the data pointer */
	*data += size;
}

/**
 * __iavf_add_stat_strings - copy stat strings into ethtool buffer
 * @p: ethtool supplied buffer
 * @stats: stat definitions array
 * @size: size of the stats array
 *
 * Format and copy the strings described by stats into the buffer pointed at
 * by p.
 **/
static void __iavf_add_stat_strings(u8 **p, const struct iavf_stats stats[],
				    const unsigned int size, ...)
{
	unsigned int i;

	for (i = 0; i < size; i++) {
		va_list args;

		va_start(args, size);
		vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
		*p += ETH_GSTRING_LEN;
		va_end(args);
	}
}

/**
 * iavf_add_stat_strings - copy stat strings into ethtool buffer
 * @p: ethtool supplied buffer
 * @stats: stat definitions array
 *
 * Format and copy the strings described by the const static stats value into
 * the buffer pointed at by p.
 *
 * The parameter @stats is evaluated twice, so parameters with side effects
 * should be avoided. Additionally, stats must be an array such that
 * ARRAY_SIZE can be called on it.
 **/
#define iavf_add_stat_strings(p, stats, ...) \
	__iavf_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)

#define VF_STAT(_name, _stat) \
	IAVF_STAT(struct iavf_adapter, _name, _stat)

static const struct iavf_stats iavf_gstrings_stats[] = {
	VF_STAT("rx_bytes", current_stats.rx_bytes),
	VF_STAT("rx_unicast", current_stats.rx_unicast),
	VF_STAT("rx_multicast", current_stats.rx_multicast),
	VF_STAT("rx_broadcast", current_stats.rx_broadcast),
	VF_STAT("rx_discards", current_stats.rx_discards),
	VF_STAT("rx_unknown_protocol", current_stats.rx_unknown_protocol),
	VF_STAT("tx_bytes", current_stats.tx_bytes),
	VF_STAT("tx_unicast", current_stats.tx_unicast),
	VF_STAT("tx_multicast", current_stats.tx_multicast),
	VF_STAT("tx_broadcast", current_stats.tx_broadcast),
	VF_STAT("tx_discards", current_stats.tx_discards),
	VF_STAT("tx_errors", current_stats.tx_errors),
};

#define IAVF_STATS_LEN	ARRAY_SIZE(iavf_gstrings_stats)

#define IAVF_QUEUE_STATS_LEN	ARRAY_SIZE(iavf_gstrings_queue_stats)

/**
 * iavf_get_link_ksettings - Get Link Speed and Duplex settings
 * @netdev: network interface device structure
 * @cmd: ethtool command
 *
 * Reports speed/duplex settings. Because this is a VF, we don't know what
 * kind of link we really have, so we fake it.
 **/
static int iavf_get_link_ksettings(struct net_device *netdev,
				   struct ethtool_link_ksettings *cmd)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);

	ethtool_link_ksettings_zero_link_mode(cmd, supported);
	cmd->base.autoneg = AUTONEG_DISABLE;
	cmd->base.port = PORT_NONE;
	cmd->base.duplex = DUPLEX_FULL;

	if (ADV_LINK_SUPPORT(adapter)) {
		if (adapter->link_speed_mbps &&
		    adapter->link_speed_mbps < U32_MAX)
			cmd->base.speed = adapter->link_speed_mbps;
		else
			cmd->base.speed = SPEED_UNKNOWN;

		return 0;
	}

	switch (adapter->link_speed) {
	case VIRTCHNL_LINK_SPEED_40GB:
		cmd->base.speed = SPEED_40000;
		break;
	case VIRTCHNL_LINK_SPEED_25GB:
		cmd->base.speed = SPEED_25000;
		break;
	case VIRTCHNL_LINK_SPEED_20GB:
		cmd->base.speed = SPEED_20000;
		break;
	case VIRTCHNL_LINK_SPEED_10GB:
		cmd->base.speed = SPEED_10000;
		break;
	case VIRTCHNL_LINK_SPEED_5GB:
		cmd->base.speed = SPEED_5000;
		break;
	case VIRTCHNL_LINK_SPEED_2_5GB:
		cmd->base.speed = SPEED_2500;
		break;
	case VIRTCHNL_LINK_SPEED_1GB:
		cmd->base.speed = SPEED_1000;
		break;
	case VIRTCHNL_LINK_SPEED_100MB:
		cmd->base.speed = SPEED_100;
		break;
	default:
		break;
	}

	return 0;
}

/**
 * iavf_get_sset_count - Get length of string set
 * @netdev: network interface device structure
 * @sset: id of string set
 *
 * Reports size of various string tables.
 **/
static int iavf_get_sset_count(struct net_device *netdev, int sset)
{
	/* Report the maximum number queues, even if not every queue is
	 * currently configured. Since allocation of queues is in pairs,
	 * use netdev->real_num_tx_queues * 2. The real_num_tx_queues is set
	 * at device creation and never changes.
	 */

	if (sset == ETH_SS_STATS)
		return IAVF_STATS_LEN +
			(IAVF_QUEUE_STATS_LEN * 2 *
			 netdev->real_num_tx_queues);
	else
		return -EINVAL;
}

/**
 * iavf_get_ethtool_stats - report device statistics
 * @netdev: network interface device structure
 * @stats: ethtool statistics structure
 * @data: pointer to data buffer
 *
 * All statistics are added to the data buffer as an array of u64.
 **/
static void iavf_get_ethtool_stats(struct net_device *netdev,
				   struct ethtool_stats *stats, u64 *data)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);
	unsigned int i;

	/* Explicitly request stats refresh */
	iavf_schedule_aq_request(adapter, IAVF_FLAG_AQ_REQUEST_STATS);

	iavf_add_ethtool_stats(&data, adapter, iavf_gstrings_stats);

	rcu_read_lock();
	/* As num_active_queues describe both tx and rx queues, we can use
	 * it to iterate over rings' stats.
	 */
	for (i = 0; i < adapter->num_active_queues; i++) {
		struct iavf_ring *ring;

		/* Tx rings stats */
		ring = &adapter->tx_rings[i];
		iavf_add_queue_stats(&data, ring);

		/* Rx rings stats */
		ring = &adapter->rx_rings[i];
		iavf_add_queue_stats(&data, ring);
	}
	rcu_read_unlock();
}

/**
 * iavf_get_stat_strings - Get stat strings
 * @netdev: network interface device structure
 * @data: buffer for string data
 *
 * Builds the statistics string table
 **/
static void iavf_get_stat_strings(struct net_device *netdev, u8 *data)
{
	unsigned int i;

	iavf_add_stat_strings(&data, iavf_gstrings_stats);

	/* Queues are always allocated in pairs, so we just use
	 * real_num_tx_queues for both Tx and Rx queues.
	 */
	for (i = 0; i < netdev->real_num_tx_queues; i++) {
		iavf_add_stat_strings(&data, iavf_gstrings_queue_stats,
				      "tx", i);
		iavf_add_stat_strings(&data, iavf_gstrings_queue_stats,
				      "rx", i);
	}
}

/**
 * iavf_get_strings - Get string set
 * @netdev: network interface device structure
 * @sset: id of string set
 * @data: buffer for string data
 *
 * Builds string tables for various string sets
 **/
static void iavf_get_strings(struct net_device *netdev, u32 sset, u8 *data)
{
	switch (sset) {
	case ETH_SS_STATS:
		iavf_get_stat_strings(netdev, data);
		break;
	default:
		break;
	}
}

/**
 * iavf_get_msglevel - Get debug message level
 * @netdev: network interface device structure
 *
 * Returns current debug message level.
 **/
static u32 iavf_get_msglevel(struct net_device *netdev)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);

	return adapter->msg_enable;
}

/**
 * iavf_set_msglevel - Set debug message level
 * @netdev: network interface device structure
 * @data: message level
 *
 * Set current debug message level. Higher values cause the driver to
 * be noisier.
 **/
static void iavf_set_msglevel(struct net_device *netdev, u32 data)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);

	if (IAVF_DEBUG_USER & data)
		adapter->hw.debug_mask = data;
	adapter->msg_enable = data;
}

/**
 * iavf_get_drvinfo - Get driver info
 * @netdev: network interface device structure
 * @drvinfo: ethool driver info structure
 *
 * Returns information about the driver and device for display to the user.
 **/
static void iavf_get_drvinfo(struct net_device *netdev,
			     struct ethtool_drvinfo *drvinfo)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);

	strscpy(drvinfo->driver, iavf_driver_name, 32);
	strscpy(drvinfo->fw_version, "N/A", 4);
	strscpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
}

/**
 * iavf_get_ringparam - Get ring parameters
 * @netdev: network interface device structure
 * @ring: ethtool ringparam structure
 * @kernel_ring: ethtool extenal ringparam structure
 * @extack: netlink extended ACK report struct
 *
 * Returns current ring parameters. TX and RX rings are reported separately,
 * but the number of rings is not reported.
 **/
static void iavf_get_ringparam(struct net_device *netdev,
			       struct ethtool_ringparam *ring,
			       struct kernel_ethtool_ringparam *kernel_ring,
			       struct netlink_ext_ack *extack)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);

	ring->rx_max_pending = IAVF_MAX_RXD;
	ring->tx_max_pending = IAVF_MAX_TXD;
	ring->rx_pending = adapter->rx_desc_count;
	ring->tx_pending = adapter->tx_desc_count;
}

/**
 * iavf_set_ringparam - Set ring parameters
 * @netdev: network interface device structure
 * @ring: ethtool ringparam structure
 * @kernel_ring: ethtool external ringparam structure
 * @extack: netlink extended ACK report struct
 *
 * Sets ring parameters. TX and RX rings are controlled separately, but the
 * number of rings is not specified, so all rings get the same settings.
 **/
static int iavf_set_ringparam(struct net_device *netdev,
			      struct ethtool_ringparam *ring,
			      struct kernel_ethtool_ringparam *kernel_ring,
			      struct netlink_ext_ack *extack)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);
	u32 new_rx_count, new_tx_count;
	int ret = 0;

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

	if (ring->tx_pending > IAVF_MAX_TXD ||
	    ring->tx_pending < IAVF_MIN_TXD ||
	    ring->rx_pending > IAVF_MAX_RXD ||
	    ring->rx_pending < IAVF_MIN_RXD) {
		netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n",
			   ring->tx_pending, ring->rx_pending, IAVF_MIN_TXD,
			   IAVF_MAX_RXD, IAVF_REQ_DESCRIPTOR_MULTIPLE);
		return -EINVAL;
	}

	new_tx_count = ALIGN(ring->tx_pending, IAVF_REQ_DESCRIPTOR_MULTIPLE);
	if (new_tx_count != ring->tx_pending)
		netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n",
			    new_tx_count);

	new_rx_count = ALIGN(ring->rx_pending, IAVF_REQ_DESCRIPTOR_MULTIPLE);
	if (new_rx_count != ring->rx_pending)
		netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n",
			    new_rx_count);

	/* if nothing to do return success */
	if ((new_tx_count == adapter->tx_desc_count) &&
	    (new_rx_count == adapter->rx_desc_count)) {
		netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
		return 0;
	}

	if (new_tx_count != adapter->tx_desc_count) {
		netdev_dbg(netdev, "Changing Tx descriptor count from %d to %d\n",
			   adapter->tx_desc_count, new_tx_count);
		adapter->tx_desc_count = new_tx_count;
	}

	if (new_rx_count != adapter->rx_desc_count) {
		netdev_dbg(netdev, "Changing Rx descriptor count from %d to %d\n",
			   adapter->rx_desc_count, new_rx_count);
		adapter->rx_desc_count = new_rx_count;
	}

	if (netif_running(netdev)) {
		iavf_schedule_reset(adapter, IAVF_FLAG_RESET_NEEDED);
		ret = iavf_wait_for_reset(adapter);
		if (ret)
			netdev_warn(netdev, "Changing ring parameters timeout or interrupted waiting for reset");
	}

	return ret;
}

/**
 * __iavf_get_coalesce - get per-queue coalesce settings
 * @netdev: the netdev to check
 * @ec: ethtool coalesce data structure
 * @queue: which queue to pick
 *
 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
 * are per queue. If queue is <0 then we default to queue 0 as the
 * representative value.
 **/
static int __iavf_get_coalesce(struct net_device *netdev,
			       struct ethtool_coalesce *ec, int queue)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);
	struct iavf_ring *rx_ring, *tx_ring;

	/* Rx and Tx usecs per queue value. If user doesn't specify the
	 * queue, return queue 0's value to represent.
	 */
	if (queue < 0)
		queue = 0;
	else if (queue >= adapter->num_active_queues)
		return -EINVAL;

	rx_ring = &adapter->rx_rings[queue];
	tx_ring = &adapter->tx_rings[queue];

	if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
		ec->use_adaptive_rx_coalesce = 1;

	if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
		ec->use_adaptive_tx_coalesce = 1;

	ec->rx_coalesce_usecs = rx_ring->itr_setting & ~IAVF_ITR_DYNAMIC;
	ec->tx_coalesce_usecs = tx_ring->itr_setting & ~IAVF_ITR_DYNAMIC;

	return 0;
}

/**
 * iavf_get_coalesce - Get interrupt coalescing settings
 * @netdev: network interface device structure
 * @ec: ethtool coalesce structure
 * @kernel_coal: ethtool CQE mode setting structure
 * @extack: extack for reporting error messages
 *
 * Returns current coalescing settings. This is referred to elsewhere in the
 * driver as Interrupt Throttle Rate, as this is how the hardware describes
 * this functionality. Note that if per-queue settings have been modified this
 * only represents the settings of queue 0.
 **/
static int iavf_get_coalesce(struct net_device *netdev,
			     struct ethtool_coalesce *ec,
			     struct kernel_ethtool_coalesce *kernel_coal,
			     struct netlink_ext_ack *extack)
{
	return __iavf_get_coalesce(netdev, ec, -1);
}

/**
 * iavf_get_per_queue_coalesce - get coalesce values for specific queue
 * @netdev: netdev to read
 * @ec: coalesce settings from ethtool
 * @queue: the queue to read
 *
 * Read specific queue's coalesce settings.
 **/
static int iavf_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
				       struct ethtool_coalesce *ec)
{
	return __iavf_get_coalesce(netdev, ec, queue);
}

/**
 * iavf_set_itr_per_queue - set ITR values for specific queue
 * @adapter: the VF adapter struct to set values for
 * @ec: coalesce settings from ethtool
 * @queue: the queue to modify
 *
 * Change the ITR settings for a specific queue.
 **/
static int iavf_set_itr_per_queue(struct iavf_adapter *adapter,
				  struct ethtool_coalesce *ec, int queue)
{
	struct iavf_ring *rx_ring = &adapter->rx_rings[queue];
	struct iavf_ring *tx_ring = &adapter->tx_rings[queue];
	struct iavf_q_vector *q_vector;
	u16 itr_setting;

	itr_setting = rx_ring->itr_setting & ~IAVF_ITR_DYNAMIC;

	if (ec->rx_coalesce_usecs != itr_setting &&
	    ec->use_adaptive_rx_coalesce) {
		netif_info(adapter, drv, adapter->netdev,
			   "Rx interrupt throttling cannot be changed if adaptive-rx is enabled\n");
		return -EINVAL;
	}

	itr_setting = tx_ring->itr_setting & ~IAVF_ITR_DYNAMIC;

	if (ec->tx_coalesce_usecs != itr_setting &&
	    ec->use_adaptive_tx_coalesce) {
		netif_info(adapter, drv, adapter->netdev,
			   "Tx interrupt throttling cannot be changed if adaptive-tx is enabled\n");
		return -EINVAL;
	}

	rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
	tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);

	rx_ring->itr_setting |= IAVF_ITR_DYNAMIC;
	if (!ec->use_adaptive_rx_coalesce)
		rx_ring->itr_setting ^= IAVF_ITR_DYNAMIC;

	tx_ring->itr_setting |= IAVF_ITR_DYNAMIC;
	if (!ec->use_adaptive_tx_coalesce)
		tx_ring->itr_setting ^= IAVF_ITR_DYNAMIC;

	q_vector = rx_ring->q_vector;
	q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);

	q_vector = tx_ring->q_vector;
	q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);

	/* The interrupt handler itself will take care of programming
	 * the Tx and Rx ITR values based on the values we have entered
	 * into the q_vector, no need to write the values now.
	 */
	return 0;
}

/**
 * __iavf_set_coalesce - set coalesce settings for particular queue
 * @netdev: the netdev to change
 * @ec: ethtool coalesce settings
 * @queue: the queue to change
 *
 * Sets the coalesce settings for a particular queue.
 **/
static int __iavf_set_coalesce(struct net_device *netdev,
			       struct ethtool_coalesce *ec, int queue)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);
	int i;

	if (ec->rx_coalesce_usecs > IAVF_MAX_ITR) {
		netif_info(adapter, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
		return -EINVAL;
	} else if (ec->tx_coalesce_usecs > IAVF_MAX_ITR) {
		netif_info(adapter, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
		return -EINVAL;
	}

	/* Rx and Tx usecs has per queue value. If user doesn't specify the
	 * queue, apply to all queues.
	 */
	if (queue < 0) {
		for (i = 0; i < adapter->num_active_queues; i++)
			if (iavf_set_itr_per_queue(adapter, ec, i))
				return -EINVAL;
	} else if (queue < adapter->num_active_queues) {
		if (iavf_set_itr_per_queue(adapter, ec, queue))
			return -EINVAL;
	} else {
		netif_info(adapter, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
			   adapter->num_active_queues - 1);
		return -EINVAL;
	}

	return 0;
}

/**
 * iavf_set_coalesce - Set interrupt coalescing settings
 * @netdev: network interface device structure
 * @ec: ethtool coalesce structure
 * @kernel_coal: ethtool CQE mode setting structure
 * @extack: extack for reporting error messages
 *
 * Change current coalescing settings for every queue.
 **/
static int iavf_set_coalesce(struct net_device *netdev,
			     struct ethtool_coalesce *ec,
			     struct kernel_ethtool_coalesce *kernel_coal,
			     struct netlink_ext_ack *extack)
{
	return __iavf_set_coalesce(netdev, ec, -1);
}

/**
 * iavf_set_per_queue_coalesce - set specific queue's coalesce settings
 * @netdev: the netdev to change
 * @ec: ethtool's coalesce settings
 * @queue: the queue to modify
 *
 * Modifies a specific queue's coalesce settings.
 */
static int iavf_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
				       struct ethtool_coalesce *ec)
{
	return __iavf_set_coalesce(netdev, ec, queue);
}

/**
 * iavf_fltr_to_ethtool_flow - convert filter type values to ethtool
 * flow type values
 * @flow: filter type to be converted
 *
 * Returns the corresponding ethtool flow type.
 */
static int iavf_fltr_to_ethtool_flow(enum iavf_fdir_flow_type flow)
{
	switch (flow) {
	case IAVF_FDIR_FLOW_IPV4_TCP:
		return TCP_V4_FLOW;
	case IAVF_FDIR_FLOW_IPV4_UDP:
		return UDP_V4_FLOW;
	case IAVF_FDIR_FLOW_IPV4_SCTP:
		return SCTP_V4_FLOW;
	case IAVF_FDIR_FLOW_IPV4_AH:
		return AH_V4_FLOW;
	case IAVF_FDIR_FLOW_IPV4_ESP:
		return ESP_V4_FLOW;
	case IAVF_FDIR_FLOW_IPV4_OTHER:
		return IPV4_USER_FLOW;
	case IAVF_FDIR_FLOW_IPV6_TCP:
		return TCP_V6_FLOW;
	case IAVF_FDIR_FLOW_IPV6_UDP:
		return UDP_V6_FLOW;
	case IAVF_FDIR_FLOW_IPV6_SCTP:
		return SCTP_V6_FLOW;
	case IAVF_FDIR_FLOW_IPV6_AH:
		return AH_V6_FLOW;
	case IAVF_FDIR_FLOW_IPV6_ESP:
		return ESP_V6_FLOW;
	case IAVF_FDIR_FLOW_IPV6_OTHER:
		return IPV6_USER_FLOW;
	case IAVF_FDIR_FLOW_NON_IP_L2:
		return ETHER_FLOW;
	default:
		/* 0 is undefined ethtool flow */
		return 0;
	}
}

/**
 * iavf_ethtool_flow_to_fltr - convert ethtool flow type to filter enum
 * @eth: Ethtool flow type to be converted
 *
 * Returns flow enum
 */
static enum iavf_fdir_flow_type iavf_ethtool_flow_to_fltr(int eth)
{
	switch (eth) {
	case TCP_V4_FLOW:
		return IAVF_FDIR_FLOW_IPV4_TCP;
	case UDP_V4_FLOW:
		return IAVF_FDIR_FLOW_IPV4_UDP;
	case SCTP_V4_FLOW:
		return IAVF_FDIR_FLOW_IPV4_SCTP;
	case AH_V4_FLOW:
		return IAVF_FDIR_FLOW_IPV4_AH;
	case ESP_V4_FLOW:
		return IAVF_FDIR_FLOW_IPV4_ESP;
	case IPV4_USER_FLOW:
		return IAVF_FDIR_FLOW_IPV4_OTHER;
	case TCP_V6_FLOW:
		return IAVF_FDIR_FLOW_IPV6_TCP;
	case UDP_V6_FLOW:
		return IAVF_FDIR_FLOW_IPV6_UDP;
	case SCTP_V6_FLOW:
		return IAVF_FDIR_FLOW_IPV6_SCTP;
	case AH_V6_FLOW:
		return IAVF_FDIR_FLOW_IPV6_AH;
	case ESP_V6_FLOW:
		return IAVF_FDIR_FLOW_IPV6_ESP;
	case IPV6_USER_FLOW:
		return IAVF_FDIR_FLOW_IPV6_OTHER;
	case ETHER_FLOW:
		return IAVF_FDIR_FLOW_NON_IP_L2;
	default:
		return IAVF_FDIR_FLOW_NONE;
	}
}

/**
 * iavf_is_mask_valid - check mask field set
 * @mask: full mask to check
 * @field: field for which mask should be valid
 *
 * If the mask is fully set return true. If it is not valid for field return
 * false.
 */
static bool iavf_is_mask_valid(u64 mask, u64 field)
{
	return (mask & field) == field;
}

/**
 * iavf_parse_rx_flow_user_data - deconstruct user-defined data
 * @fsp: pointer to ethtool Rx flow specification
 * @fltr: pointer to Flow Director filter for userdef data storage
 *
 * Returns 0 on success, negative error value on failure
 */
static int
iavf_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
			     struct iavf_fdir_fltr *fltr)
{
	struct iavf_flex_word *flex;
	int i, cnt = 0;

	if (!(fsp->flow_type & FLOW_EXT))
		return 0;

	for (i = 0; i < IAVF_FLEX_WORD_NUM; i++) {
#define IAVF_USERDEF_FLEX_WORD_M	GENMASK(15, 0)
#define IAVF_USERDEF_FLEX_OFFS_S	16
#define IAVF_USERDEF_FLEX_OFFS_M	GENMASK(31, IAVF_USERDEF_FLEX_OFFS_S)
#define IAVF_USERDEF_FLEX_FLTR_M	GENMASK(31, 0)
		u32 value = be32_to_cpu(fsp->h_ext.data[i]);
		u32 mask = be32_to_cpu(fsp->m_ext.data[i]);

		if (!value || !mask)
			continue;

		if (!iavf_is_mask_valid(mask, IAVF_USERDEF_FLEX_FLTR_M))
			return -EINVAL;

		/* 504 is the maximum value for offsets, and offset is measured
		 * from the start of the MAC address.
		 */
#define IAVF_USERDEF_FLEX_MAX_OFFS_VAL 504
		flex = &fltr->flex_words[cnt++];
		flex->word = value & IAVF_USERDEF_FLEX_WORD_M;
		flex->offset = FIELD_GET(IAVF_USERDEF_FLEX_OFFS_M, value);
		if (flex->offset > IAVF_USERDEF_FLEX_MAX_OFFS_VAL)
			return -EINVAL;
	}

	fltr->flex_cnt = cnt;

	return 0;
}

/**
 * iavf_fill_rx_flow_ext_data - fill the additional data
 * @fsp: pointer to ethtool Rx flow specification
 * @fltr: pointer to Flow Director filter to get additional data
 */
static void
iavf_fill_rx_flow_ext_data(struct ethtool_rx_flow_spec *fsp,
			   struct iavf_fdir_fltr *fltr)
{
	if (!fltr->ext_mask.usr_def[0] && !fltr->ext_mask.usr_def[1])
		return;

	fsp->flow_type |= FLOW_EXT;

	memcpy(fsp->h_ext.data, fltr->ext_data.usr_def, sizeof(fsp->h_ext.data));
	memcpy(fsp->m_ext.data, fltr->ext_mask.usr_def, sizeof(fsp->m_ext.data));
}

/**
 * iavf_get_ethtool_fdir_entry - fill ethtool structure with Flow Director filter data
 * @adapter: the VF adapter structure that contains filter list
 * @cmd: ethtool command data structure to receive the filter data
 *
 * Returns 0 as expected for success by ethtool
 */
static int
iavf_get_ethtool_fdir_entry(struct iavf_adapter *adapter,
			    struct ethtool_rxnfc *cmd)
{
	struct ethtool_rx_flow_spec *fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
	struct iavf_fdir_fltr *rule = NULL;
	int ret = 0;

	if (!(adapter->flags & IAVF_FLAG_FDIR_ENABLED))
		return -EOPNOTSUPP;

	spin_lock_bh(&adapter->fdir_fltr_lock);

	rule = iavf_find_fdir_fltr_by_loc(adapter, fsp->location);
	if (!rule) {
		ret = -EINVAL;
		goto release_lock;
	}

	fsp->flow_type = iavf_fltr_to_ethtool_flow(rule->flow_type);

	memset(&fsp->m_u, 0, sizeof(fsp->m_u));
	memset(&fsp->m_ext, 0, sizeof(fsp->m_ext));

	switch (fsp->flow_type) {
	case TCP_V4_FLOW:
	case UDP_V4_FLOW:
	case SCTP_V4_FLOW:
		fsp->h_u.tcp_ip4_spec.ip4src = rule->ip_data.v4_addrs.src_ip;
		fsp->h_u.tcp_ip4_spec.ip4dst = rule->ip_data.v4_addrs.dst_ip;
		fsp->h_u.tcp_ip4_spec.psrc = rule->ip_data.src_port;
		fsp->h_u.tcp_ip4_spec.pdst = rule->ip_data.dst_port;
		fsp->h_u.tcp_ip4_spec.tos = rule->ip_data.tos;
		fsp->m_u.tcp_ip4_spec.ip4src = rule->ip_mask.v4_addrs.src_ip;
		fsp->m_u.tcp_ip4_spec.ip4dst = rule->ip_mask.v4_addrs.dst_ip;
		fsp->m_u.tcp_ip4_spec.psrc = rule->ip_mask.src_port;
		fsp->m_u.tcp_ip4_spec.pdst = rule->ip_mask.dst_port;
		fsp->m_u.tcp_ip4_spec.tos = rule->ip_mask.tos;
		break;
	case AH_V4_FLOW:
	case ESP_V4_FLOW:
		fsp->h_u.ah_ip4_spec.ip4src = rule->ip_data.v4_addrs.src_ip;
		fsp->h_u.ah_ip4_spec.ip4dst = rule->ip_data.v4_addrs.dst_ip;
		fsp->h_u.ah_ip4_spec.spi = rule->ip_data.spi;
		fsp->h_u.ah_ip4_spec.tos = rule->ip_data.tos;
		fsp->m_u.ah_ip4_spec.ip4src = rule->ip_mask.v4_addrs.src_ip;
		fsp->m_u.ah_ip4_spec.ip4dst = rule->ip_mask.v4_addrs.dst_ip;
		fsp->m_u.ah_ip4_spec.spi = rule->ip_mask.spi;
		fsp->m_u.ah_ip4_spec.tos = rule->ip_mask.tos;
		break;
	case IPV4_USER_FLOW:
		fsp->h_u.usr_ip4_spec.ip4src = rule->ip_data.v4_addrs.src_ip;
		fsp->h_u.usr_ip4_spec.ip4dst = rule->ip_data.v4_addrs.dst_ip;
		fsp->h_u.usr_ip4_spec.l4_4_bytes = rule->ip_data.l4_header;
		fsp->h_u.usr_ip4_spec.tos = rule->ip_data.tos;
		fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
		fsp->h_u.usr_ip4_spec.proto = rule->ip_data.proto;
		fsp->m_u.usr_ip4_spec.ip4src = rule->ip_mask.v4_addrs.src_ip;
		fsp->m_u.usr_ip4_spec.ip4dst = rule->ip_mask.v4_addrs.dst_ip;
		fsp->m_u.usr_ip4_spec.l4_4_bytes = rule->ip_mask.l4_header;
		fsp->m_u.usr_ip4_spec.tos = rule->ip_mask.tos;
		fsp->m_u.usr_ip4_spec.ip_ver = 0xFF;
		fsp->m_u.usr_ip4_spec.proto = rule->ip_mask.proto;
		break;
	case TCP_V6_FLOW:
	case UDP_V6_FLOW:
	case SCTP_V6_FLOW:
		memcpy(fsp->h_u.usr_ip6_spec.ip6src, &rule->ip_data.v6_addrs.src_ip,
		       sizeof(struct in6_addr));
		memcpy(fsp->h_u.usr_ip6_spec.ip6dst, &rule->ip_data.v6_addrs.dst_ip,
		       sizeof(struct in6_addr));
		fsp->h_u.tcp_ip6_spec.psrc = rule->ip_data.src_port;
		fsp->h_u.tcp_ip6_spec.pdst = rule->ip_data.dst_port;
		fsp->h_u.tcp_ip6_spec.tclass = rule->ip_data.tclass;
		memcpy(fsp->m_u.usr_ip6_spec.ip6src, &rule->ip_mask.v6_addrs.src_ip,
		       sizeof(struct in6_addr));
		memcpy(fsp->m_u.usr_ip6_spec.ip6dst, &rule->ip_mask.v6_addrs.dst_ip,
		       sizeof(struct in6_addr));
		fsp->m_u.tcp_ip6_spec.psrc = rule->ip_mask.src_port;
		fsp->m_u.tcp_ip6_spec.pdst = rule->ip_mask.dst_port;
		fsp->m_u.tcp_ip6_spec.tclass = rule->ip_mask.tclass;
		break;
	case AH_V6_FLOW:
	case ESP_V6_FLOW:
		memcpy(fsp->h_u.ah_ip6_spec.ip6src, &rule->ip_data.v6_addrs.src_ip,
		       sizeof(struct in6_addr));
		memcpy(fsp->h_u.ah_ip6_spec.ip6dst, &rule->ip_data.v6_addrs.dst_ip,
		       sizeof(struct in6_addr));
		fsp->h_u.ah_ip6_spec.spi = rule->ip_data.spi;
		fsp->h_u.ah_ip6_spec.tclass = rule->ip_data.tclass;
		memcpy(fsp->m_u.ah_ip6_spec.ip6src, &rule->ip_mask.v6_addrs.src_ip,
		       sizeof(struct in6_addr));
		memcpy(fsp->m_u.ah_ip6_spec.ip6dst, &rule->ip_mask.v6_addrs.dst_ip,
		       sizeof(struct in6_addr));
		fsp->m_u.ah_ip6_spec.spi = rule->ip_mask.spi;
		fsp->m_u.ah_ip6_spec.tclass = rule->ip_mask.tclass;
		break;
	case IPV6_USER_FLOW:
		memcpy(fsp->h_u.usr_ip6_spec.ip6src, &rule->ip_data.v6_addrs.src_ip,
		       sizeof(struct in6_addr));
		memcpy(fsp->h_u.usr_ip6_spec.ip6dst, &rule->ip_data.v6_addrs.dst_ip,
		       sizeof(struct in6_addr));
		fsp->h_u.usr_ip6_spec.l4_4_bytes = rule->ip_data.l4_header;
		fsp->h_u.usr_ip6_spec.tclass = rule->ip_data.tclass;
		fsp->h_u.usr_ip6_spec.l4_proto = rule->ip_data.proto;
		memcpy(fsp->m_u.usr_ip6_spec.ip6src, &rule->ip_mask.v6_addrs.src_ip,
		       sizeof(struct in6_addr));
		memcpy(fsp->m_u.usr_ip6_spec.ip6dst, &rule->ip_mask.v6_addrs.dst_ip,
		       sizeof(struct in6_addr));
		fsp->m_u.usr_ip6_spec.l4_4_bytes = rule->ip_mask.l4_header;
		fsp->m_u.usr_ip6_spec.tclass = rule->ip_mask.tclass;
		fsp->m_u.usr_ip6_spec.l4_proto = rule->ip_mask.proto;
		break;
	case ETHER_FLOW:
		fsp->h_u.ether_spec.h_proto = rule->eth_data.etype;
		fsp->m_u.ether_spec.h_proto = rule->eth_mask.etype;
		break;
	default:
		ret = -EINVAL;
		break;
	}

	iavf_fill_rx_flow_ext_data(fsp, rule);

	if (rule->action == VIRTCHNL_ACTION_DROP)
		fsp->ring_cookie = RX_CLS_FLOW_DISC;
	else
		fsp->ring_cookie = rule->q_index;

release_lock:
	spin_unlock_bh(&adapter->fdir_fltr_lock);
	return ret;
}

/**
 * iavf_get_fdir_fltr_ids - fill buffer with filter IDs of active filters
 * @adapter: the VF adapter structure containing the filter list
 * @cmd: ethtool command data structure
 * @rule_locs: ethtool array passed in from OS to receive filter IDs
 *
 * Returns 0 as expected for success by ethtool
 */
static int
iavf_get_fdir_fltr_ids(struct iavf_adapter *adapter, struct ethtool_rxnfc *cmd,
		       u32 *rule_locs)
{
	struct iavf_fdir_fltr *fltr;
	unsigned int cnt = 0;
	int val = 0;

	if (!(adapter->flags & IAVF_FLAG_FDIR_ENABLED))
		return -EOPNOTSUPP;

	cmd->data = IAVF_MAX_FDIR_FILTERS;

	spin_lock_bh(&adapter->fdir_fltr_lock);

	list_for_each_entry(fltr, &adapter->fdir_list_head, list) {
		if (cnt == cmd->rule_cnt) {
			val = -EMSGSIZE;
			goto release_lock;
		}
		rule_locs[cnt] = fltr->loc;
		cnt++;
	}

release_lock:
	spin_unlock_bh(&adapter->fdir_fltr_lock);
	if (!val)
		cmd->rule_cnt = cnt;

	return val;
}

/**
 * iavf_add_fdir_fltr_info - Set the input set for Flow Director filter
 * @adapter: pointer to the VF adapter structure
 * @fsp: pointer to ethtool Rx flow specification
 * @fltr: filter structure
 */
static int
iavf_add_fdir_fltr_info(struct iavf_adapter *adapter, struct ethtool_rx_flow_spec *fsp,
			struct iavf_fdir_fltr *fltr)
{
	u32 flow_type, q_index = 0;
	enum virtchnl_action act;
	int err;

	if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
		act = VIRTCHNL_ACTION_DROP;
	} else {
		q_index = fsp->ring_cookie;
		if (q_index >= adapter->num_active_queues)
			return -EINVAL;

		act = VIRTCHNL_ACTION_QUEUE;
	}

	fltr->action = act;
	fltr->loc = fsp->location;
	fltr->q_index = q_index;

	if (fsp->flow_type & FLOW_EXT) {
		memcpy(fltr->ext_data.usr_def, fsp->h_ext.data,
		       sizeof(fltr->ext_data.usr_def));
		memcpy(fltr->ext_mask.usr_def, fsp->m_ext.data,
		       sizeof(fltr->ext_mask.usr_def));
	}

	flow_type = fsp->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS);
	fltr->flow_type = iavf_ethtool_flow_to_fltr(flow_type);

	switch (flow_type) {
	case TCP_V4_FLOW:
	case UDP_V4_FLOW:
	case SCTP_V4_FLOW:
		fltr->ip_data.v4_addrs.src_ip = fsp->h_u.tcp_ip4_spec.ip4src;
		fltr->ip_data.v4_addrs.dst_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
		fltr->ip_data.src_port = fsp->h_u.tcp_ip4_spec.psrc;
		fltr->ip_data.dst_port = fsp->h_u.tcp_ip4_spec.pdst;
		fltr->ip_data.tos = fsp->h_u.tcp_ip4_spec.tos;
		fltr->ip_mask.v4_addrs.src_ip = fsp->m_u.tcp_ip4_spec.ip4src;
		fltr->ip_mask.v4_addrs.dst_ip = fsp->m_u.tcp_ip4_spec.ip4dst;
		fltr->ip_mask.src_port = fsp->m_u.tcp_ip4_spec.psrc;
		fltr->ip_mask.dst_port = fsp->m_u.tcp_ip4_spec.pdst;
		fltr->ip_mask.tos = fsp->m_u.tcp_ip4_spec.tos;
		fltr->ip_ver = 4;
		break;
	case AH_V4_FLOW:
	case ESP_V4_FLOW:
		fltr->ip_data.v4_addrs.src_ip = fsp->h_u.ah_ip4_spec.ip4src;
		fltr->ip_data.v4_addrs.dst_ip = fsp->h_u.ah_ip4_spec.ip4dst;
		fltr->ip_data.spi = fsp->h_u.ah_ip4_spec.spi;
		fltr->ip_data.tos = fsp->h_u.ah_ip4_spec.tos;
		fltr->ip_mask.v4_addrs.src_ip = fsp->m_u.ah_ip4_spec.ip4src;
		fltr->ip_mask.v4_addrs.dst_ip = fsp->m_u.ah_ip4_spec.ip4dst;
		fltr->ip_mask.spi = fsp->m_u.ah_ip4_spec.spi;
		fltr->ip_mask.tos = fsp->m_u.ah_ip4_spec.tos;
		fltr->ip_ver = 4;
		break;
	case IPV4_USER_FLOW:
		fltr->ip_data.v4_addrs.src_ip = fsp->h_u.usr_ip4_spec.ip4src;
		fltr->ip_data.v4_addrs.dst_ip = fsp->h_u.usr_ip4_spec.ip4dst;
		fltr->ip_data.l4_header = fsp->h_u.usr_ip4_spec.l4_4_bytes;
		fltr->ip_data.tos = fsp->h_u.usr_ip4_spec.tos;
		fltr->ip_data.proto = fsp->h_u.usr_ip4_spec.proto;
		fltr->ip_mask.v4_addrs.src_ip = fsp->m_u.usr_ip4_spec.ip4src;
		fltr->ip_mask.v4_addrs.dst_ip = fsp->m_u.usr_ip4_spec.ip4dst;
		fltr->ip_mask.l4_header = fsp->m_u.usr_ip4_spec.l4_4_bytes;
		fltr->ip_mask.tos = fsp->m_u.usr_ip4_spec.tos;
		fltr->ip_mask.proto = fsp->m_u.usr_ip4_spec.proto;
		fltr->ip_ver = 4;
		break;
	case TCP_V6_FLOW:
	case UDP_V6_FLOW:
	case SCTP_V6_FLOW:
		memcpy(&fltr->ip_data.v6_addrs.src_ip, fsp->h_u.usr_ip6_spec.ip6src,
		       sizeof(struct in6_addr));
		memcpy(&fltr->ip_data.v6_addrs.dst_ip, fsp->h_u.usr_ip6_spec.ip6dst,
		       sizeof(struct in6_addr));
		fltr->ip_data.src_port = fsp->h_u.tcp_ip6_spec.psrc;
		fltr->ip_data.dst_port = fsp->h_u.tcp_ip6_spec.pdst;
		fltr->ip_data.tclass = fsp->h_u.tcp_ip6_spec.tclass;
		memcpy(&fltr->ip_mask.v6_addrs.src_ip, fsp->m_u.usr_ip6_spec.ip6src,
		       sizeof(struct in6_addr));
		memcpy(&fltr->ip_mask.v6_addrs.dst_ip, fsp->m_u.usr_ip6_spec.ip6dst,
		       sizeof(struct in6_addr));
		fltr->ip_mask.src_port = fsp->m_u.tcp_ip6_spec.psrc;
		fltr->ip_mask.dst_port = fsp->m_u.tcp_ip6_spec.pdst;
		fltr->ip_mask.tclass = fsp->m_u.tcp_ip6_spec.tclass;
		fltr->ip_ver = 6;
		break;
	case AH_V6_FLOW:
	case ESP_V6_FLOW:
		memcpy(&fltr->ip_data.v6_addrs.src_ip, fsp->h_u.ah_ip6_spec.ip6src,
		       sizeof(struct in6_addr));
		memcpy(&fltr->ip_data.v6_addrs.dst_ip, fsp->h_u.ah_ip6_spec.ip6dst,
		       sizeof(struct in6_addr));
		fltr->ip_data.spi = fsp->h_u.ah_ip6_spec.spi;
		fltr->ip_data.tclass = fsp->h_u.ah_ip6_spec.tclass;
		memcpy(&fltr->ip_mask.v6_addrs.src_ip, fsp->m_u.ah_ip6_spec.ip6src,
		       sizeof(struct in6_addr));
		memcpy(&fltr->ip_mask.v6_addrs.dst_ip, fsp->m_u.ah_ip6_spec.ip6dst,
		       sizeof(struct in6_addr));
		fltr->ip_mask.spi = fsp->m_u.ah_ip6_spec.spi;
		fltr->ip_mask.tclass = fsp->m_u.ah_ip6_spec.tclass;
		fltr->ip_ver = 6;
		break;
	case IPV6_USER_FLOW:
		memcpy(&fltr->ip_data.v6_addrs.src_ip, fsp->h_u.usr_ip6_spec.ip6src,
		       sizeof(struct in6_addr));
		memcpy(&fltr->ip_data.v6_addrs.dst_ip, fsp->h_u.usr_ip6_spec.ip6dst,
		       sizeof(struct in6_addr));
		fltr->ip_data.l4_header = fsp->h_u.usr_ip6_spec.l4_4_bytes;
		fltr->ip_data.tclass = fsp->h_u.usr_ip6_spec.tclass;
		fltr->ip_data.proto = fsp->h_u.usr_ip6_spec.l4_proto;
		memcpy(&fltr->ip_mask.v6_addrs.src_ip, fsp->m_u.usr_ip6_spec.ip6src,
		       sizeof(struct in6_addr));
		memcpy(&fltr->ip_mask.v6_addrs.dst_ip, fsp->m_u.usr_ip6_spec.ip6dst,
		       sizeof(struct in6_addr));
		fltr->ip_mask.l4_header = fsp->m_u.usr_ip6_spec.l4_4_bytes;
		fltr->ip_mask.tclass = fsp->m_u.usr_ip6_spec.tclass;
		fltr->ip_mask.proto = fsp->m_u.usr_ip6_spec.l4_proto;
		fltr->ip_ver = 6;
		break;
	case ETHER_FLOW:
		fltr->eth_data.etype = fsp->h_u.ether_spec.h_proto;
		fltr->eth_mask.etype = fsp->m_u.ether_spec.h_proto;
		break;
	default:
		/* not doing un-parsed flow types */
		return -EINVAL;
	}

	err = iavf_validate_fdir_fltr_masks(adapter, fltr);
	if (err)
		return err;

	if (iavf_fdir_is_dup_fltr(adapter, fltr))
		return -EEXIST;

	err = iavf_parse_rx_flow_user_data(fsp, fltr);
	if (err)
		return err;

	return iavf_fill_fdir_add_msg(adapter, fltr);
}

/**
 * iavf_add_fdir_ethtool - add Flow Director filter
 * @adapter: pointer to the VF adapter structure
 * @cmd: command to add Flow Director filter
 *
 * Returns 0 on success and negative values for failure
 */
static int iavf_add_fdir_ethtool(struct iavf_adapter *adapter, struct ethtool_rxnfc *cmd)
{
	struct ethtool_rx_flow_spec *fsp = &cmd->fs;
	struct iavf_fdir_fltr *fltr;
	int count = 50;
	int err;

	if (!(adapter->flags & IAVF_FLAG_FDIR_ENABLED))
		return -EOPNOTSUPP;

	if (fsp->flow_type & FLOW_MAC_EXT)
		return -EINVAL;

	spin_lock_bh(&adapter->fdir_fltr_lock);
	if (adapter->fdir_active_fltr >= IAVF_MAX_FDIR_FILTERS) {
		spin_unlock_bh(&adapter->fdir_fltr_lock);
		dev_err(&adapter->pdev->dev,
			"Unable to add Flow Director filter because VF reached the limit of max allowed filters (%u)\n",
			IAVF_MAX_FDIR_FILTERS);
		return -ENOSPC;
	}

	if (iavf_find_fdir_fltr_by_loc(adapter, fsp->location)) {
		dev_err(&adapter->pdev->dev, "Failed to add Flow Director filter, it already exists\n");
		spin_unlock_bh(&adapter->fdir_fltr_lock);
		return -EEXIST;
	}
	spin_unlock_bh(&adapter->fdir_fltr_lock);

	fltr = kzalloc(sizeof(*fltr), GFP_KERNEL);
	if (!fltr)
		return -ENOMEM;

	while (!mutex_trylock(&adapter->crit_lock)) {
		if (--count == 0) {
			kfree(fltr);
			return -EINVAL;
		}
		udelay(1);
	}

	err = iavf_add_fdir_fltr_info(adapter, fsp, fltr);
	if (err)
		goto ret;

	spin_lock_bh(&adapter->fdir_fltr_lock);
	iavf_fdir_list_add_fltr(adapter, fltr);
	adapter->fdir_active_fltr++;

	if (adapter->link_up)
		fltr->state = IAVF_FDIR_FLTR_ADD_REQUEST;
	else
		fltr->state = IAVF_FDIR_FLTR_INACTIVE;
	spin_unlock_bh(&adapter->fdir_fltr_lock);

	if (adapter->link_up)
		iavf_schedule_aq_request(adapter, IAVF_FLAG_AQ_ADD_FDIR_FILTER);
ret:
	if (err && fltr)
		kfree(fltr);

	mutex_unlock(&adapter->crit_lock);
	return err;
}

/**
 * iavf_del_fdir_ethtool - delete Flow Director filter
 * @adapter: pointer to the VF adapter structure
 * @cmd: command to delete Flow Director filter
 *
 * Returns 0 on success and negative values for failure
 */
static int iavf_del_fdir_ethtool(struct iavf_adapter *adapter, struct ethtool_rxnfc *cmd)
{
	struct ethtool_rx_flow_spec *fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
	struct iavf_fdir_fltr *fltr = NULL;
	int err = 0;

	if (!(adapter->flags & IAVF_FLAG_FDIR_ENABLED))
		return -EOPNOTSUPP;

	spin_lock_bh(&adapter->fdir_fltr_lock);
	fltr = iavf_find_fdir_fltr_by_loc(adapter, fsp->location);
	if (fltr) {
		if (fltr->state == IAVF_FDIR_FLTR_ACTIVE) {
			fltr->state = IAVF_FDIR_FLTR_DEL_REQUEST;
		} else if (fltr->state == IAVF_FDIR_FLTR_INACTIVE) {
			list_del(&fltr->list);
			kfree(fltr);
			adapter->fdir_active_fltr--;
			fltr = NULL;
		} else {
			err = -EBUSY;
		}
	} else if (adapter->fdir_active_fltr) {
		err = -EINVAL;
	}
	spin_unlock_bh(&adapter->fdir_fltr_lock);

	if (fltr && fltr->state == IAVF_FDIR_FLTR_DEL_REQUEST)
		iavf_schedule_aq_request(adapter, IAVF_FLAG_AQ_DEL_FDIR_FILTER);

	return err;
}

/**
 * iavf_adv_rss_parse_hdrs - parses headers from RSS hash input
 * @cmd: ethtool rxnfc command
 *
 * This function parses the rxnfc command and returns intended
 * header types for RSS configuration
 */
static u32 iavf_adv_rss_parse_hdrs(struct ethtool_rxnfc *cmd)
{
	u32 hdrs = IAVF_ADV_RSS_FLOW_SEG_HDR_NONE;

	switch (cmd->flow_type) {
	case TCP_V4_FLOW:
		hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_TCP |
			IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4;
		break;
	case UDP_V4_FLOW:
		hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_UDP |
			IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4;
		break;
	case SCTP_V4_FLOW:
		hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP |
			IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4;
		break;
	case TCP_V6_FLOW:
		hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_TCP |
			IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6;
		break;
	case UDP_V6_FLOW:
		hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_UDP |
			IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6;
		break;
	case SCTP_V6_FLOW:
		hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP |
			IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6;
		break;
	default:
		break;
	}

	return hdrs;
}

/**
 * iavf_adv_rss_parse_hash_flds - parses hash fields from RSS hash input
 * @cmd: ethtool rxnfc command
 * @symm: true if Symmetric Topelitz is set
 *
 * This function parses the rxnfc command and returns intended hash fields for
 * RSS configuration
 */
static u64 iavf_adv_rss_parse_hash_flds(struct ethtool_rxnfc *cmd, bool symm)
{
	u64 hfld = IAVF_ADV_RSS_HASH_INVALID;

	if (cmd->data & RXH_IP_SRC || cmd->data & RXH_IP_DST) {
		switch (cmd->flow_type) {
		case TCP_V4_FLOW:
		case UDP_V4_FLOW:
		case SCTP_V4_FLOW:
			if (cmd->data & RXH_IP_SRC)
				hfld |= IAVF_ADV_RSS_HASH_FLD_IPV4_SA;
			if (cmd->data & RXH_IP_DST)
				hfld |= IAVF_ADV_RSS_HASH_FLD_IPV4_DA;
			break;
		case TCP_V6_FLOW:
		case UDP_V6_FLOW:
		case SCTP_V6_FLOW:
			if (cmd->data & RXH_IP_SRC)
				hfld |= IAVF_ADV_RSS_HASH_FLD_IPV6_SA;
			if (cmd->data & RXH_IP_DST)
				hfld |= IAVF_ADV_RSS_HASH_FLD_IPV6_DA;
			break;
		default:
			break;
		}
	}

	if (cmd->data & RXH_L4_B_0_1 || cmd->data & RXH_L4_B_2_3) {
		switch (cmd->flow_type) {
		case TCP_V4_FLOW:
		case TCP_V6_FLOW:
			if (cmd->data & RXH_L4_B_0_1)
				hfld |= IAVF_ADV_RSS_HASH_FLD_TCP_SRC_PORT;
			if (cmd->data & RXH_L4_B_2_3)
				hfld |= IAVF_ADV_RSS_HASH_FLD_TCP_DST_PORT;
			break;
		case UDP_V4_FLOW:
		case UDP_V6_FLOW:
			if (cmd->data & RXH_L4_B_0_1)
				hfld |= IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT;
			if (cmd->data & RXH_L4_B_2_3)
				hfld |= IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT;
			break;
		case SCTP_V4_FLOW:
		case SCTP_V6_FLOW:
			if (cmd->data & RXH_L4_B_0_1)
				hfld |= IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT;
			if (cmd->data & RXH_L4_B_2_3)
				hfld |= IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT;
			break;
		default:
			break;
		}
	}

	return hfld;
}

/**
 * iavf_set_adv_rss_hash_opt - Enable/Disable flow types for RSS hash
 * @adapter: pointer to the VF adapter structure
 * @cmd: ethtool rxnfc command
 *
 * Returns Success if the flow input set is supported.
 */
static int
iavf_set_adv_rss_hash_opt(struct iavf_adapter *adapter,
			  struct ethtool_rxnfc *cmd)
{
	struct iavf_adv_rss *rss_old, *rss_new;
	bool rss_new_add = false;
	int count = 50, err = 0;
	bool symm = false;
	u64 hash_flds;
	u32 hdrs;

	if (!ADV_RSS_SUPPORT(adapter))
		return -EOPNOTSUPP;

	symm = !!(adapter->hfunc == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC);

	hdrs = iavf_adv_rss_parse_hdrs(cmd);
	if (hdrs == IAVF_ADV_RSS_FLOW_SEG_HDR_NONE)
		return -EINVAL;

	hash_flds = iavf_adv_rss_parse_hash_flds(cmd, symm);
	if (hash_flds == IAVF_ADV_RSS_HASH_INVALID)
		return -EINVAL;

	rss_new = kzalloc(sizeof(*rss_new), GFP_KERNEL);
	if (!rss_new)
		return -ENOMEM;

	if (iavf_fill_adv_rss_cfg_msg(&rss_new->cfg_msg, hdrs, hash_flds,
				      symm)) {
		kfree(rss_new);
		return -EINVAL;
	}

	while (!mutex_trylock(&adapter->crit_lock)) {
		if (--count == 0) {
			kfree(rss_new);
			return -EINVAL;
		}

		udelay(1);
	}

	spin_lock_bh(&adapter->adv_rss_lock);
	rss_old = iavf_find_adv_rss_cfg_by_hdrs(adapter, hdrs);
	if (rss_old) {
		if (rss_old->state != IAVF_ADV_RSS_ACTIVE) {
			err = -EBUSY;
		} else if (rss_old->hash_flds != hash_flds ||
			   rss_old->symm != symm) {
			rss_old->state = IAVF_ADV_RSS_ADD_REQUEST;
			rss_old->hash_flds = hash_flds;
			rss_old->symm = symm;
			memcpy(&rss_old->cfg_msg, &rss_new->cfg_msg,
			       sizeof(rss_new->cfg_msg));
		} else {
			err = -EEXIST;
		}
	} else {
		rss_new_add = true;
		rss_new->state = IAVF_ADV_RSS_ADD_REQUEST;
		rss_new->packet_hdrs = hdrs;
		rss_new->hash_flds = hash_flds;
		rss_new->symm = symm;
		list_add_tail(&rss_new->list, &adapter->adv_rss_list_head);
	}
	spin_unlock_bh(&adapter->adv_rss_lock);

	if (!err)
		iavf_schedule_aq_request(adapter, IAVF_FLAG_AQ_ADD_ADV_RSS_CFG);

	mutex_unlock(&adapter->crit_lock);

	if (!rss_new_add)
		kfree(rss_new);

	return err;
}

/**
 * iavf_get_adv_rss_hash_opt - Retrieve hash fields for a given flow-type
 * @adapter: pointer to the VF adapter structure
 * @cmd: ethtool rxnfc command
 *
 * Returns Success if the flow input set is supported.
 */
static int
iavf_get_adv_rss_hash_opt(struct iavf_adapter *adapter,
			  struct ethtool_rxnfc *cmd)
{
	struct iavf_adv_rss *rss;
	u64 hash_flds;
	u32 hdrs;

	if (!ADV_RSS_SUPPORT(adapter))
		return -EOPNOTSUPP;

	cmd->data = 0;

	hdrs = iavf_adv_rss_parse_hdrs(cmd);
	if (hdrs == IAVF_ADV_RSS_FLOW_SEG_HDR_NONE)
		return -EINVAL;

	spin_lock_bh(&adapter->adv_rss_lock);
	rss = iavf_find_adv_rss_cfg_by_hdrs(adapter, hdrs);
	if (rss)
		hash_flds = rss->hash_flds;
	else
		hash_flds = IAVF_ADV_RSS_HASH_INVALID;
	spin_unlock_bh(&adapter->adv_rss_lock);

	if (hash_flds == IAVF_ADV_RSS_HASH_INVALID)
		return -EINVAL;

	if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_IPV4_SA |
			 IAVF_ADV_RSS_HASH_FLD_IPV6_SA))
		cmd->data |= (u64)RXH_IP_SRC;

	if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_IPV4_DA |
			 IAVF_ADV_RSS_HASH_FLD_IPV6_DA))
		cmd->data |= (u64)RXH_IP_DST;

	if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_TCP_SRC_PORT |
			 IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT |
			 IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT))
		cmd->data |= (u64)RXH_L4_B_0_1;

	if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_TCP_DST_PORT |
			 IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT |
			 IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT))
		cmd->data |= (u64)RXH_L4_B_2_3;

	return 0;
}

/**
 * iavf_set_rxnfc - command to set Rx flow rules.
 * @netdev: network interface device structure
 * @cmd: ethtool rxnfc command
 *
 * Returns 0 for success and negative values for errors
 */
static int iavf_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);
	int ret = -EOPNOTSUPP;

	switch (cmd->cmd) {
	case ETHTOOL_SRXCLSRLINS:
		ret = iavf_add_fdir_ethtool(adapter, cmd);
		break;
	case ETHTOOL_SRXCLSRLDEL:
		ret = iavf_del_fdir_ethtool(adapter, cmd);
		break;
	case ETHTOOL_SRXFH:
		ret = iavf_set_adv_rss_hash_opt(adapter, cmd);
		break;
	default:
		break;
	}

	return ret;
}

/**
 * iavf_get_rxnfc - command to get RX flow classification rules
 * @netdev: network interface device structure
 * @cmd: ethtool rxnfc command
 * @rule_locs: pointer to store rule locations
 *
 * Returns Success if the command is supported.
 **/
static int iavf_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
			  u32 *rule_locs)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);
	int ret = -EOPNOTSUPP;

	switch (cmd->cmd) {
	case ETHTOOL_GRXRINGS:
		cmd->data = adapter->num_active_queues;
		ret = 0;
		break;
	case ETHTOOL_GRXCLSRLCNT:
		if (!(adapter->flags & IAVF_FLAG_FDIR_ENABLED))
			break;
		spin_lock_bh(&adapter->fdir_fltr_lock);
		cmd->rule_cnt = adapter->fdir_active_fltr;
		spin_unlock_bh(&adapter->fdir_fltr_lock);
		cmd->data = IAVF_MAX_FDIR_FILTERS;
		ret = 0;
		break;
	case ETHTOOL_GRXCLSRULE:
		ret = iavf_get_ethtool_fdir_entry(adapter, cmd);
		break;
	case ETHTOOL_GRXCLSRLALL:
		ret = iavf_get_fdir_fltr_ids(adapter, cmd, (u32 *)rule_locs);
		break;
	case ETHTOOL_GRXFH:
		ret = iavf_get_adv_rss_hash_opt(adapter, cmd);
		break;
	default:
		break;
	}

	return ret;
}
/**
 * iavf_get_channels: get the number of channels supported by the device
 * @netdev: network interface device structure
 * @ch: channel information structure
 *
 * For the purposes of our device, we only use combined channels, i.e. a tx/rx
 * queue pair. Report one extra channel to match our "other" MSI-X vector.
 **/
static void iavf_get_channels(struct net_device *netdev,
			      struct ethtool_channels *ch)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);

	/* Report maximum channels */
	ch->max_combined = adapter->vsi_res->num_queue_pairs;

	ch->max_other = NONQ_VECS;
	ch->other_count = NONQ_VECS;

	ch->combined_count = adapter->num_active_queues;
}

/**
 * iavf_set_channels: set the new channel count
 * @netdev: network interface device structure
 * @ch: channel information structure
 *
 * Negotiate a new number of channels with the PF then do a reset.  During
 * reset we'll realloc queues and fix the RSS table.  Returns 0 on success,
 * negative on failure.
 **/
static int iavf_set_channels(struct net_device *netdev,
			     struct ethtool_channels *ch)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);
	u32 num_req = ch->combined_count;
	int ret = 0;

	if ((adapter->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_ADQ) &&
	    adapter->num_tc) {
		dev_info(&adapter->pdev->dev, "Cannot set channels since ADq is enabled.\n");
		return -EINVAL;
	}

	/* All of these should have already been checked by ethtool before this
	 * even gets to us, but just to be sure.
	 */
	if (num_req == 0 || num_req > adapter->vsi_res->num_queue_pairs)
		return -EINVAL;

	if (num_req == adapter->num_active_queues)
		return 0;

	if (ch->rx_count || ch->tx_count || ch->other_count != NONQ_VECS)
		return -EINVAL;

	adapter->num_req_queues = num_req;
	adapter->flags |= IAVF_FLAG_REINIT_ITR_NEEDED;
	iavf_schedule_reset(adapter, IAVF_FLAG_RESET_NEEDED);

	ret = iavf_wait_for_reset(adapter);
	if (ret)
		netdev_warn(netdev, "Changing channel count timeout or interrupted waiting for reset");

	return ret;
}

/**
 * iavf_get_rxfh_key_size - get the RSS hash key size
 * @netdev: network interface device structure
 *
 * Returns the table size.
 **/
static u32 iavf_get_rxfh_key_size(struct net_device *netdev)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);

	return adapter->rss_key_size;
}

/**
 * iavf_get_rxfh_indir_size - get the rx flow hash indirection table size
 * @netdev: network interface device structure
 *
 * Returns the table size.
 **/
static u32 iavf_get_rxfh_indir_size(struct net_device *netdev)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);

	return adapter->rss_lut_size;
}

/**
 * iavf_get_rxfh - get the rx flow hash indirection table
 * @netdev: network interface device structure
 * @rxfh: pointer to param struct (indir, key, hfunc)
 *
 * Reads the indirection table directly from the hardware. Always returns 0.
 **/
static int iavf_get_rxfh(struct net_device *netdev,
			 struct ethtool_rxfh_param *rxfh)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);
	u16 i;

	rxfh->hfunc = ETH_RSS_HASH_TOP;
	if (adapter->hfunc == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC)
		rxfh->input_xfrm |= RXH_XFRM_SYM_XOR;

	if (rxfh->key)
		memcpy(rxfh->key, adapter->rss_key, adapter->rss_key_size);

	if (rxfh->indir)
		/* Each 32 bits pointed by 'indir' is stored with a lut entry */
		for (i = 0; i < adapter->rss_lut_size; i++)
			rxfh->indir[i] = (u32)adapter->rss_lut[i];

	return 0;
}

/**
 * iavf_set_rxfh - set the rx flow hash indirection table
 * @netdev: network interface device structure
 * @rxfh: pointer to param struct (indir, key, hfunc)
 * @extack: extended ACK from the Netlink message
 *
 * Returns -EINVAL if the table specifies an invalid queue id, otherwise
 * returns 0 after programming the table.
 **/
static int iavf_set_rxfh(struct net_device *netdev,
			 struct ethtool_rxfh_param *rxfh,
			 struct netlink_ext_ack *extack)
{
	struct iavf_adapter *adapter = netdev_priv(netdev);
	u16 i;

	/* Only support toeplitz hash function */
	if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
	    rxfh->hfunc != ETH_RSS_HASH_TOP)
		return -EOPNOTSUPP;

	if ((rxfh->input_xfrm & RXH_XFRM_SYM_XOR) &&
	    adapter->hfunc != VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) {
		if (!ADV_RSS_SUPPORT(adapter))
			return -EOPNOTSUPP;
		adapter->hfunc = VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC;
		adapter->aq_required |= IAVF_FLAG_AQ_SET_RSS_HFUNC;
	} else if (!(rxfh->input_xfrm & RXH_XFRM_SYM_XOR) &&
		    adapter->hfunc != VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC) {
		adapter->hfunc = VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC;
		adapter->aq_required |= IAVF_FLAG_AQ_SET_RSS_HFUNC;
	}

	if (!rxfh->key && !rxfh->indir)
		return 0;

	if (rxfh->key)
		memcpy(adapter->rss_key, rxfh->key, adapter->rss_key_size);

	if (rxfh->indir) {
		/* Each 32 bits pointed by 'indir' is stored with a lut entry */
		for (i = 0; i < adapter->rss_lut_size; i++)
			adapter->rss_lut[i] = (u8)(rxfh->indir[i]);
	}

	return iavf_config_rss(adapter);
}

static const struct ethtool_ops iavf_ethtool_ops = {
	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
				     ETHTOOL_COALESCE_USE_ADAPTIVE,
	.cap_rss_sym_xor_supported = true,
	.get_drvinfo		= iavf_get_drvinfo,
	.get_link		= ethtool_op_get_link,
	.get_ringparam		= iavf_get_ringparam,
	.set_ringparam		= iavf_set_ringparam,
	.get_strings		= iavf_get_strings,
	.get_ethtool_stats	= iavf_get_ethtool_stats,
	.get_sset_count		= iavf_get_sset_count,
	.get_msglevel		= iavf_get_msglevel,
	.set_msglevel		= iavf_set_msglevel,
	.get_coalesce		= iavf_get_coalesce,
	.set_coalesce		= iavf_set_coalesce,
	.get_per_queue_coalesce = iavf_get_per_queue_coalesce,
	.set_per_queue_coalesce = iavf_set_per_queue_coalesce,
	.set_rxnfc		= iavf_set_rxnfc,
	.get_rxnfc		= iavf_get_rxnfc,
	.get_rxfh_indir_size	= iavf_get_rxfh_indir_size,
	.get_rxfh		= iavf_get_rxfh,
	.set_rxfh		= iavf_set_rxfh,
	.get_channels		= iavf_get_channels,
	.set_channels		= iavf_set_channels,
	.get_rxfh_key_size	= iavf_get_rxfh_key_size,
	.get_link_ksettings	= iavf_get_link_ksettings,
};

/**
 * iavf_set_ethtool_ops - Initialize ethtool ops struct
 * @netdev: network interface device structure
 *
 * Sets ethtool ops struct in our netdev so that ethtool can call
 * our functions.
 **/
void iavf_set_ethtool_ops(struct net_device *netdev)
{
	netdev->ethtool_ops = &iavf_ethtool_ops;
}