summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/intel/ice/ice_tc_lib.c
blob: 8bd24b33f3a6768b7e83947a09b074ea4831a521 (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
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2019-2021, Intel Corporation. */

#include "ice.h"
#include "ice_tc_lib.h"
#include "ice_fltr.h"
#include "ice_lib.h"
#include "ice_protocol_type.h"

#define ICE_TC_METADATA_LKUP_IDX 0

/**
 * ice_tc_count_lkups - determine lookup count for switch filter
 * @flags: TC-flower flags
 * @headers: Pointer to TC flower filter header structure
 * @fltr: Pointer to outer TC filter structure
 *
 * Determine lookup count based on TC flower input for switch filter.
 */
static int
ice_tc_count_lkups(u32 flags, struct ice_tc_flower_lyr_2_4_hdrs *headers,
		   struct ice_tc_flower_fltr *fltr)
{
	int lkups_cnt = 1; /* 0th lookup is metadata */

	/* Always add metadata as the 0th lookup. Included elements:
	 * - Direction flag (always present)
	 * - ICE_TC_FLWR_FIELD_VLAN_TPID (present if specified)
	 * - Tunnel flag (present if tunnel)
	 */
	if (fltr->direction == ICE_ESWITCH_FLTR_EGRESS)
		lkups_cnt++;

	if (flags & ICE_TC_FLWR_FIELD_TENANT_ID)
		lkups_cnt++;

	if (flags & ICE_TC_FLWR_FIELD_ENC_DST_MAC)
		lkups_cnt++;

	if (flags & ICE_TC_FLWR_FIELD_GTP_OPTS)
		lkups_cnt++;

	if (flags & ICE_TC_FLWR_FIELD_PFCP_OPTS)
		lkups_cnt++;

	if (flags & (ICE_TC_FLWR_FIELD_ENC_SRC_IPV4 |
		     ICE_TC_FLWR_FIELD_ENC_DEST_IPV4 |
		     ICE_TC_FLWR_FIELD_ENC_SRC_IPV6 |
		     ICE_TC_FLWR_FIELD_ENC_DEST_IPV6))
		lkups_cnt++;

	if (flags & (ICE_TC_FLWR_FIELD_ENC_IP_TOS |
		     ICE_TC_FLWR_FIELD_ENC_IP_TTL))
		lkups_cnt++;

	if (flags & ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT)
		lkups_cnt++;

	if (flags & ICE_TC_FLWR_FIELD_ETH_TYPE_ID)
		lkups_cnt++;

	/* are MAC fields specified? */
	if (flags & (ICE_TC_FLWR_FIELD_DST_MAC | ICE_TC_FLWR_FIELD_SRC_MAC))
		lkups_cnt++;

	/* is VLAN specified? */
	if (flags & (ICE_TC_FLWR_FIELD_VLAN | ICE_TC_FLWR_FIELD_VLAN_PRIO))
		lkups_cnt++;

	/* is CVLAN specified? */
	if (flags & (ICE_TC_FLWR_FIELD_CVLAN | ICE_TC_FLWR_FIELD_CVLAN_PRIO))
		lkups_cnt++;

	/* are PPPoE options specified? */
	if (flags & (ICE_TC_FLWR_FIELD_PPPOE_SESSID |
		     ICE_TC_FLWR_FIELD_PPP_PROTO))
		lkups_cnt++;

	/* are IPv[4|6] fields specified? */
	if (flags & (ICE_TC_FLWR_FIELD_DEST_IPV4 | ICE_TC_FLWR_FIELD_SRC_IPV4 |
		     ICE_TC_FLWR_FIELD_DEST_IPV6 | ICE_TC_FLWR_FIELD_SRC_IPV6))
		lkups_cnt++;

	if (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL))
		lkups_cnt++;

	/* are L2TPv3 options specified? */
	if (flags & ICE_TC_FLWR_FIELD_L2TPV3_SESSID)
		lkups_cnt++;

	/* is L4 (TCP/UDP/any other L4 protocol fields) specified? */
	if (flags & (ICE_TC_FLWR_FIELD_DEST_L4_PORT |
		     ICE_TC_FLWR_FIELD_SRC_L4_PORT))
		lkups_cnt++;

	return lkups_cnt;
}

static enum ice_protocol_type ice_proto_type_from_mac(bool inner)
{
	return inner ? ICE_MAC_IL : ICE_MAC_OFOS;
}

static enum ice_protocol_type ice_proto_type_from_etype(bool inner)
{
	return inner ? ICE_ETYPE_IL : ICE_ETYPE_OL;
}

static enum ice_protocol_type ice_proto_type_from_ipv4(bool inner)
{
	return inner ? ICE_IPV4_IL : ICE_IPV4_OFOS;
}

static enum ice_protocol_type ice_proto_type_from_ipv6(bool inner)
{
	return inner ? ICE_IPV6_IL : ICE_IPV6_OFOS;
}

static enum ice_protocol_type ice_proto_type_from_l4_port(u16 ip_proto)
{
	switch (ip_proto) {
	case IPPROTO_TCP:
		return ICE_TCP_IL;
	case IPPROTO_UDP:
		return ICE_UDP_ILOS;
	}

	return 0;
}

static enum ice_protocol_type
ice_proto_type_from_tunnel(enum ice_tunnel_type type)
{
	switch (type) {
	case TNL_VXLAN:
		return ICE_VXLAN;
	case TNL_GENEVE:
		return ICE_GENEVE;
	case TNL_GRETAP:
		return ICE_NVGRE;
	case TNL_GTPU:
		/* NO_PAY profiles will not work with GTP-U */
		return ICE_GTP;
	case TNL_GTPC:
		return ICE_GTP_NO_PAY;
	case TNL_PFCP:
		return ICE_PFCP;
	default:
		return 0;
	}
}

static enum ice_sw_tunnel_type
ice_sw_type_from_tunnel(enum ice_tunnel_type type)
{
	switch (type) {
	case TNL_VXLAN:
		return ICE_SW_TUN_VXLAN;
	case TNL_GENEVE:
		return ICE_SW_TUN_GENEVE;
	case TNL_GRETAP:
		return ICE_SW_TUN_NVGRE;
	case TNL_GTPU:
		return ICE_SW_TUN_GTPU;
	case TNL_GTPC:
		return ICE_SW_TUN_GTPC;
	case TNL_PFCP:
		return ICE_SW_TUN_PFCP;
	default:
		return ICE_NON_TUN;
	}
}

static u16 ice_check_supported_vlan_tpid(u16 vlan_tpid)
{
	switch (vlan_tpid) {
	case ETH_P_8021Q:
	case ETH_P_8021AD:
	case ETH_P_QINQ1:
		return vlan_tpid;
	default:
		return 0;
	}
}

static int
ice_tc_fill_tunnel_outer(u32 flags, struct ice_tc_flower_fltr *fltr,
			 struct ice_adv_lkup_elem *list, int i)
{
	struct ice_tc_flower_lyr_2_4_hdrs *hdr = &fltr->outer_headers;

	if (flags & ICE_TC_FLWR_FIELD_TENANT_ID) {
		u32 tenant_id;

		list[i].type = ice_proto_type_from_tunnel(fltr->tunnel_type);
		switch (fltr->tunnel_type) {
		case TNL_VXLAN:
		case TNL_GENEVE:
			tenant_id = be32_to_cpu(fltr->tenant_id) << 8;
			list[i].h_u.tnl_hdr.vni = cpu_to_be32(tenant_id);
			memcpy(&list[i].m_u.tnl_hdr.vni, "\xff\xff\xff\x00", 4);
			i++;
			break;
		case TNL_GRETAP:
			list[i].h_u.nvgre_hdr.tni_flow = fltr->tenant_id;
			memcpy(&list[i].m_u.nvgre_hdr.tni_flow,
			       "\xff\xff\xff\xff", 4);
			i++;
			break;
		case TNL_GTPC:
		case TNL_GTPU:
			list[i].h_u.gtp_hdr.teid = fltr->tenant_id;
			memcpy(&list[i].m_u.gtp_hdr.teid,
			       "\xff\xff\xff\xff", 4);
			i++;
			break;
		default:
			break;
		}
	}

	if (flags & ICE_TC_FLWR_FIELD_ENC_DST_MAC) {
		list[i].type = ice_proto_type_from_mac(false);
		ether_addr_copy(list[i].h_u.eth_hdr.dst_addr,
				hdr->l2_key.dst_mac);
		ether_addr_copy(list[i].m_u.eth_hdr.dst_addr,
				hdr->l2_mask.dst_mac);
		i++;
	}

	if (flags & ICE_TC_FLWR_FIELD_GTP_OPTS) {
		list[i].type = ice_proto_type_from_tunnel(fltr->tunnel_type);

		if (fltr->gtp_pdu_info_masks.pdu_type) {
			list[i].h_u.gtp_hdr.pdu_type =
				fltr->gtp_pdu_info_keys.pdu_type << 4;
			memcpy(&list[i].m_u.gtp_hdr.pdu_type, "\xf0", 1);
		}

		if (fltr->gtp_pdu_info_masks.qfi) {
			list[i].h_u.gtp_hdr.qfi = fltr->gtp_pdu_info_keys.qfi;
			memcpy(&list[i].m_u.gtp_hdr.qfi, "\x3f", 1);
		}

		i++;
	}

	if (flags & ICE_TC_FLWR_FIELD_PFCP_OPTS) {
		struct ice_pfcp_hdr *hdr_h, *hdr_m;

		hdr_h = &list[i].h_u.pfcp_hdr;
		hdr_m = &list[i].m_u.pfcp_hdr;
		list[i].type = ICE_PFCP;

		hdr_h->flags = fltr->pfcp_meta_keys.type;
		hdr_m->flags = fltr->pfcp_meta_masks.type & 0x01;

		hdr_h->seid = fltr->pfcp_meta_keys.seid;
		hdr_m->seid = fltr->pfcp_meta_masks.seid;

		i++;
	}

	if (flags & (ICE_TC_FLWR_FIELD_ENC_SRC_IPV4 |
		     ICE_TC_FLWR_FIELD_ENC_DEST_IPV4)) {
		list[i].type = ice_proto_type_from_ipv4(false);

		if (flags & ICE_TC_FLWR_FIELD_ENC_SRC_IPV4) {
			list[i].h_u.ipv4_hdr.src_addr = hdr->l3_key.src_ipv4;
			list[i].m_u.ipv4_hdr.src_addr = hdr->l3_mask.src_ipv4;
		}
		if (flags & ICE_TC_FLWR_FIELD_ENC_DEST_IPV4) {
			list[i].h_u.ipv4_hdr.dst_addr = hdr->l3_key.dst_ipv4;
			list[i].m_u.ipv4_hdr.dst_addr = hdr->l3_mask.dst_ipv4;
		}
		i++;
	}

	if (flags & (ICE_TC_FLWR_FIELD_ENC_SRC_IPV6 |
		     ICE_TC_FLWR_FIELD_ENC_DEST_IPV6)) {
		list[i].type = ice_proto_type_from_ipv6(false);

		if (flags & ICE_TC_FLWR_FIELD_ENC_SRC_IPV6) {
			memcpy(&list[i].h_u.ipv6_hdr.src_addr,
			       &hdr->l3_key.src_ipv6_addr,
			       sizeof(hdr->l3_key.src_ipv6_addr));
			memcpy(&list[i].m_u.ipv6_hdr.src_addr,
			       &hdr->l3_mask.src_ipv6_addr,
			       sizeof(hdr->l3_mask.src_ipv6_addr));
		}
		if (flags & ICE_TC_FLWR_FIELD_ENC_DEST_IPV6) {
			memcpy(&list[i].h_u.ipv6_hdr.dst_addr,
			       &hdr->l3_key.dst_ipv6_addr,
			       sizeof(hdr->l3_key.dst_ipv6_addr));
			memcpy(&list[i].m_u.ipv6_hdr.dst_addr,
			       &hdr->l3_mask.dst_ipv6_addr,
			       sizeof(hdr->l3_mask.dst_ipv6_addr));
		}
		i++;
	}

	if (fltr->inner_headers.l2_key.n_proto == htons(ETH_P_IP) &&
	    (flags & (ICE_TC_FLWR_FIELD_ENC_IP_TOS |
		      ICE_TC_FLWR_FIELD_ENC_IP_TTL))) {
		list[i].type = ice_proto_type_from_ipv4(false);

		if (flags & ICE_TC_FLWR_FIELD_ENC_IP_TOS) {
			list[i].h_u.ipv4_hdr.tos = hdr->l3_key.tos;
			list[i].m_u.ipv4_hdr.tos = hdr->l3_mask.tos;
		}

		if (flags & ICE_TC_FLWR_FIELD_ENC_IP_TTL) {
			list[i].h_u.ipv4_hdr.time_to_live = hdr->l3_key.ttl;
			list[i].m_u.ipv4_hdr.time_to_live = hdr->l3_mask.ttl;
		}

		i++;
	}

	if (fltr->inner_headers.l2_key.n_proto == htons(ETH_P_IPV6) &&
	    (flags & (ICE_TC_FLWR_FIELD_ENC_IP_TOS |
		      ICE_TC_FLWR_FIELD_ENC_IP_TTL))) {
		struct ice_ipv6_hdr *hdr_h, *hdr_m;

		hdr_h = &list[i].h_u.ipv6_hdr;
		hdr_m = &list[i].m_u.ipv6_hdr;
		list[i].type = ice_proto_type_from_ipv6(false);

		if (flags & ICE_TC_FLWR_FIELD_ENC_IP_TOS) {
			be32p_replace_bits(&hdr_h->be_ver_tc_flow,
					   hdr->l3_key.tos,
					   ICE_IPV6_HDR_TC_MASK);
			be32p_replace_bits(&hdr_m->be_ver_tc_flow,
					   hdr->l3_mask.tos,
					   ICE_IPV6_HDR_TC_MASK);
		}

		if (flags & ICE_TC_FLWR_FIELD_ENC_IP_TTL) {
			hdr_h->hop_limit = hdr->l3_key.ttl;
			hdr_m->hop_limit = hdr->l3_mask.ttl;
		}

		i++;
	}

	if ((flags & ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT) &&
	    hdr->l3_key.ip_proto == IPPROTO_UDP) {
		list[i].type = ICE_UDP_OF;
		list[i].h_u.l4_hdr.dst_port = hdr->l4_key.dst_port;
		list[i].m_u.l4_hdr.dst_port = hdr->l4_mask.dst_port;
		i++;
	}

	/* always fill matching on tunneled packets in metadata */
	ice_rule_add_tunnel_metadata(&list[ICE_TC_METADATA_LKUP_IDX]);

	return i;
}

/**
 * ice_tc_fill_rules - fill filter rules based on TC fltr
 * @hw: pointer to HW structure
 * @flags: tc flower field flags
 * @tc_fltr: pointer to TC flower filter
 * @list: list of advance rule elements
 * @rule_info: pointer to information about rule
 * @l4_proto: pointer to information such as L4 proto type
 *
 * Fill ice_adv_lkup_elem list based on TC flower flags and
 * TC flower headers. This list should be used to add
 * advance filter in hardware.
 */
static int
ice_tc_fill_rules(struct ice_hw *hw, u32 flags,
		  struct ice_tc_flower_fltr *tc_fltr,
		  struct ice_adv_lkup_elem *list,
		  struct ice_adv_rule_info *rule_info,
		  u16 *l4_proto)
{
	struct ice_tc_flower_lyr_2_4_hdrs *headers = &tc_fltr->outer_headers;
	bool inner = false;
	u16 vlan_tpid = 0;
	int i = 1; /* 0th lookup is metadata */

	rule_info->vlan_type = vlan_tpid;

	/* Always add direction metadata */
	ice_rule_add_direction_metadata(&list[ICE_TC_METADATA_LKUP_IDX]);

	if (tc_fltr->direction == ICE_ESWITCH_FLTR_EGRESS) {
		ice_rule_add_src_vsi_metadata(&list[i]);
		i++;
	}

	rule_info->tun_type = ice_sw_type_from_tunnel(tc_fltr->tunnel_type);
	if (tc_fltr->tunnel_type != TNL_LAST) {
		i = ice_tc_fill_tunnel_outer(flags, tc_fltr, list, i);

		/* PFCP is considered non-tunneled - don't swap headers. */
		if (tc_fltr->tunnel_type != TNL_PFCP) {
			headers = &tc_fltr->inner_headers;
			inner = true;
		}
	}

	if (flags & ICE_TC_FLWR_FIELD_ETH_TYPE_ID) {
		list[i].type = ice_proto_type_from_etype(inner);
		list[i].h_u.ethertype.ethtype_id = headers->l2_key.n_proto;
		list[i].m_u.ethertype.ethtype_id = headers->l2_mask.n_proto;
		i++;
	}

	if (flags & (ICE_TC_FLWR_FIELD_DST_MAC |
		     ICE_TC_FLWR_FIELD_SRC_MAC)) {
		struct ice_tc_l2_hdr *l2_key, *l2_mask;

		l2_key = &headers->l2_key;
		l2_mask = &headers->l2_mask;

		list[i].type = ice_proto_type_from_mac(inner);
		if (flags & ICE_TC_FLWR_FIELD_DST_MAC) {
			ether_addr_copy(list[i].h_u.eth_hdr.dst_addr,
					l2_key->dst_mac);
			ether_addr_copy(list[i].m_u.eth_hdr.dst_addr,
					l2_mask->dst_mac);
		}
		if (flags & ICE_TC_FLWR_FIELD_SRC_MAC) {
			ether_addr_copy(list[i].h_u.eth_hdr.src_addr,
					l2_key->src_mac);
			ether_addr_copy(list[i].m_u.eth_hdr.src_addr,
					l2_mask->src_mac);
		}
		i++;
	}

	/* copy VLAN info */
	if (flags & (ICE_TC_FLWR_FIELD_VLAN | ICE_TC_FLWR_FIELD_VLAN_PRIO)) {
		if (flags & ICE_TC_FLWR_FIELD_CVLAN)
			list[i].type = ICE_VLAN_EX;
		else
			list[i].type = ICE_VLAN_OFOS;

		if (flags & ICE_TC_FLWR_FIELD_VLAN) {
			list[i].h_u.vlan_hdr.vlan = headers->vlan_hdr.vlan_id;
			list[i].m_u.vlan_hdr.vlan = cpu_to_be16(0x0FFF);
		}

		if (flags & ICE_TC_FLWR_FIELD_VLAN_PRIO) {
			if (flags & ICE_TC_FLWR_FIELD_VLAN) {
				list[i].m_u.vlan_hdr.vlan = cpu_to_be16(0xEFFF);
			} else {
				list[i].m_u.vlan_hdr.vlan = cpu_to_be16(0xE000);
				list[i].h_u.vlan_hdr.vlan = 0;
			}
			list[i].h_u.vlan_hdr.vlan |=
				headers->vlan_hdr.vlan_prio;
		}

		i++;
	}

	if (flags & ICE_TC_FLWR_FIELD_VLAN_TPID) {
		vlan_tpid = be16_to_cpu(headers->vlan_hdr.vlan_tpid);
		rule_info->vlan_type =
				ice_check_supported_vlan_tpid(vlan_tpid);

		ice_rule_add_vlan_metadata(&list[ICE_TC_METADATA_LKUP_IDX]);
	}

	if (flags & (ICE_TC_FLWR_FIELD_CVLAN | ICE_TC_FLWR_FIELD_CVLAN_PRIO)) {
		list[i].type = ICE_VLAN_IN;

		if (flags & ICE_TC_FLWR_FIELD_CVLAN) {
			list[i].h_u.vlan_hdr.vlan = headers->cvlan_hdr.vlan_id;
			list[i].m_u.vlan_hdr.vlan = cpu_to_be16(0x0FFF);
		}

		if (flags & ICE_TC_FLWR_FIELD_CVLAN_PRIO) {
			if (flags & ICE_TC_FLWR_FIELD_CVLAN) {
				list[i].m_u.vlan_hdr.vlan = cpu_to_be16(0xEFFF);
			} else {
				list[i].m_u.vlan_hdr.vlan = cpu_to_be16(0xE000);
				list[i].h_u.vlan_hdr.vlan = 0;
			}
			list[i].h_u.vlan_hdr.vlan |=
				headers->cvlan_hdr.vlan_prio;
		}

		i++;
	}

	if (flags & (ICE_TC_FLWR_FIELD_PPPOE_SESSID |
		     ICE_TC_FLWR_FIELD_PPP_PROTO)) {
		struct ice_pppoe_hdr *vals, *masks;

		vals = &list[i].h_u.pppoe_hdr;
		masks = &list[i].m_u.pppoe_hdr;

		list[i].type = ICE_PPPOE;

		if (flags & ICE_TC_FLWR_FIELD_PPPOE_SESSID) {
			vals->session_id = headers->pppoe_hdr.session_id;
			masks->session_id = cpu_to_be16(0xFFFF);
		}

		if (flags & ICE_TC_FLWR_FIELD_PPP_PROTO) {
			vals->ppp_prot_id = headers->pppoe_hdr.ppp_proto;
			masks->ppp_prot_id = cpu_to_be16(0xFFFF);
		}

		i++;
	}

	/* copy L3 (IPv[4|6]: src, dest) address */
	if (flags & (ICE_TC_FLWR_FIELD_DEST_IPV4 |
		     ICE_TC_FLWR_FIELD_SRC_IPV4)) {
		struct ice_tc_l3_hdr *l3_key, *l3_mask;

		list[i].type = ice_proto_type_from_ipv4(inner);
		l3_key = &headers->l3_key;
		l3_mask = &headers->l3_mask;
		if (flags & ICE_TC_FLWR_FIELD_DEST_IPV4) {
			list[i].h_u.ipv4_hdr.dst_addr = l3_key->dst_ipv4;
			list[i].m_u.ipv4_hdr.dst_addr = l3_mask->dst_ipv4;
		}
		if (flags & ICE_TC_FLWR_FIELD_SRC_IPV4) {
			list[i].h_u.ipv4_hdr.src_addr = l3_key->src_ipv4;
			list[i].m_u.ipv4_hdr.src_addr = l3_mask->src_ipv4;
		}
		i++;
	} else if (flags & (ICE_TC_FLWR_FIELD_DEST_IPV6 |
			    ICE_TC_FLWR_FIELD_SRC_IPV6)) {
		struct ice_ipv6_hdr *ipv6_hdr, *ipv6_mask;
		struct ice_tc_l3_hdr *l3_key, *l3_mask;

		list[i].type = ice_proto_type_from_ipv6(inner);
		ipv6_hdr = &list[i].h_u.ipv6_hdr;
		ipv6_mask = &list[i].m_u.ipv6_hdr;
		l3_key = &headers->l3_key;
		l3_mask = &headers->l3_mask;

		if (flags & ICE_TC_FLWR_FIELD_DEST_IPV6) {
			memcpy(&ipv6_hdr->dst_addr, &l3_key->dst_ipv6_addr,
			       sizeof(l3_key->dst_ipv6_addr));
			memcpy(&ipv6_mask->dst_addr, &l3_mask->dst_ipv6_addr,
			       sizeof(l3_mask->dst_ipv6_addr));
		}
		if (flags & ICE_TC_FLWR_FIELD_SRC_IPV6) {
			memcpy(&ipv6_hdr->src_addr, &l3_key->src_ipv6_addr,
			       sizeof(l3_key->src_ipv6_addr));
			memcpy(&ipv6_mask->src_addr, &l3_mask->src_ipv6_addr,
			       sizeof(l3_mask->src_ipv6_addr));
		}
		i++;
	}

	if (headers->l2_key.n_proto == htons(ETH_P_IP) &&
	    (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL))) {
		list[i].type = ice_proto_type_from_ipv4(inner);

		if (flags & ICE_TC_FLWR_FIELD_IP_TOS) {
			list[i].h_u.ipv4_hdr.tos = headers->l3_key.tos;
			list[i].m_u.ipv4_hdr.tos = headers->l3_mask.tos;
		}

		if (flags & ICE_TC_FLWR_FIELD_IP_TTL) {
			list[i].h_u.ipv4_hdr.time_to_live =
				headers->l3_key.ttl;
			list[i].m_u.ipv4_hdr.time_to_live =
				headers->l3_mask.ttl;
		}

		i++;
	}

	if (headers->l2_key.n_proto == htons(ETH_P_IPV6) &&
	    (flags & (ICE_TC_FLWR_FIELD_IP_TOS | ICE_TC_FLWR_FIELD_IP_TTL))) {
		struct ice_ipv6_hdr *hdr_h, *hdr_m;

		hdr_h = &list[i].h_u.ipv6_hdr;
		hdr_m = &list[i].m_u.ipv6_hdr;
		list[i].type = ice_proto_type_from_ipv6(inner);

		if (flags & ICE_TC_FLWR_FIELD_IP_TOS) {
			be32p_replace_bits(&hdr_h->be_ver_tc_flow,
					   headers->l3_key.tos,
					   ICE_IPV6_HDR_TC_MASK);
			be32p_replace_bits(&hdr_m->be_ver_tc_flow,
					   headers->l3_mask.tos,
					   ICE_IPV6_HDR_TC_MASK);
		}

		if (flags & ICE_TC_FLWR_FIELD_IP_TTL) {
			hdr_h->hop_limit = headers->l3_key.ttl;
			hdr_m->hop_limit = headers->l3_mask.ttl;
		}

		i++;
	}

	if (flags & ICE_TC_FLWR_FIELD_L2TPV3_SESSID) {
		list[i].type = ICE_L2TPV3;

		list[i].h_u.l2tpv3_sess_hdr.session_id =
			headers->l2tpv3_hdr.session_id;
		list[i].m_u.l2tpv3_sess_hdr.session_id =
			cpu_to_be32(0xFFFFFFFF);

		i++;
	}

	/* copy L4 (src, dest) port */
	if (flags & (ICE_TC_FLWR_FIELD_DEST_L4_PORT |
		     ICE_TC_FLWR_FIELD_SRC_L4_PORT)) {
		struct ice_tc_l4_hdr *l4_key, *l4_mask;

		list[i].type = ice_proto_type_from_l4_port(headers->l3_key.ip_proto);
		l4_key = &headers->l4_key;
		l4_mask = &headers->l4_mask;

		if (flags & ICE_TC_FLWR_FIELD_DEST_L4_PORT) {
			list[i].h_u.l4_hdr.dst_port = l4_key->dst_port;
			list[i].m_u.l4_hdr.dst_port = l4_mask->dst_port;
		}
		if (flags & ICE_TC_FLWR_FIELD_SRC_L4_PORT) {
			list[i].h_u.l4_hdr.src_port = l4_key->src_port;
			list[i].m_u.l4_hdr.src_port = l4_mask->src_port;
		}
		i++;
	}

	return i;
}

/**
 * ice_tc_tun_get_type - get the tunnel type
 * @tunnel_dev: ptr to tunnel device
 *
 * This function detects appropriate tunnel_type if specified device is
 * tunnel device such as VXLAN/Geneve
 */
static int ice_tc_tun_get_type(struct net_device *tunnel_dev)
{
	if (netif_is_vxlan(tunnel_dev))
		return TNL_VXLAN;
	if (netif_is_geneve(tunnel_dev))
		return TNL_GENEVE;
	if (netif_is_gretap(tunnel_dev) ||
	    netif_is_ip6gretap(tunnel_dev))
		return TNL_GRETAP;

	/* Assume GTP-U by default in case of GTP netdev.
	 * GTP-C may be selected later, based on enc_dst_port.
	 */
	if (netif_is_gtp(tunnel_dev))
		return TNL_GTPU;
	if (netif_is_pfcp(tunnel_dev))
		return TNL_PFCP;
	return TNL_LAST;
}

bool ice_is_tunnel_supported(struct net_device *dev)
{
	return ice_tc_tun_get_type(dev) != TNL_LAST;
}

static bool ice_tc_is_dev_uplink(struct net_device *dev)
{
	return netif_is_ice(dev) || ice_is_tunnel_supported(dev);
}

static int ice_tc_setup_action(struct net_device *filter_dev,
			       struct ice_tc_flower_fltr *fltr,
			       struct net_device *target_dev,
			       enum ice_sw_fwd_act_type action)
{
	struct ice_repr *repr;

	if (action != ICE_FWD_TO_VSI && action != ICE_MIRROR_PACKET) {
		NL_SET_ERR_MSG_MOD(fltr->extack, "Unsupported action to setup provided");
		return -EINVAL;
	}

	fltr->action.fltr_act = action;

	if (ice_is_port_repr_netdev(filter_dev) &&
	    ice_is_port_repr_netdev(target_dev)) {
		repr = ice_netdev_to_repr(target_dev);

		fltr->dest_vsi = repr->src_vsi;
		fltr->direction = ICE_ESWITCH_FLTR_EGRESS;
	} else if (ice_is_port_repr_netdev(filter_dev) &&
		   ice_tc_is_dev_uplink(target_dev)) {
		repr = ice_netdev_to_repr(filter_dev);

		fltr->dest_vsi = repr->src_vsi->back->eswitch.uplink_vsi;
		fltr->direction = ICE_ESWITCH_FLTR_EGRESS;
	} else if (ice_tc_is_dev_uplink(filter_dev) &&
		   ice_is_port_repr_netdev(target_dev)) {
		repr = ice_netdev_to_repr(target_dev);

		fltr->dest_vsi = repr->src_vsi;
		fltr->direction = ICE_ESWITCH_FLTR_INGRESS;
	} else {
		NL_SET_ERR_MSG_MOD(fltr->extack,
				   "Unsupported netdevice in switchdev mode");
		return -EINVAL;
	}

	return 0;
}

static int
ice_tc_setup_drop_action(struct net_device *filter_dev,
			 struct ice_tc_flower_fltr *fltr)
{
	fltr->action.fltr_act = ICE_DROP_PACKET;

	if (ice_is_port_repr_netdev(filter_dev)) {
		fltr->direction = ICE_ESWITCH_FLTR_EGRESS;
	} else if (ice_tc_is_dev_uplink(filter_dev)) {
		fltr->direction = ICE_ESWITCH_FLTR_INGRESS;
	} else {
		NL_SET_ERR_MSG_MOD(fltr->extack,
				   "Unsupported netdevice in switchdev mode");
		return -EINVAL;
	}

	return 0;
}

static int ice_eswitch_tc_parse_action(struct net_device *filter_dev,
				       struct ice_tc_flower_fltr *fltr,
				       struct flow_action_entry *act)
{
	int err;

	switch (act->id) {
	case FLOW_ACTION_DROP:
		err = ice_tc_setup_drop_action(filter_dev, fltr);
		if (err)
			return err;

		break;

	case FLOW_ACTION_REDIRECT:
		err = ice_tc_setup_action(filter_dev, fltr,
					  act->dev, ICE_FWD_TO_VSI);
		if (err)
			return err;

		break;

	case FLOW_ACTION_MIRRED:
		err = ice_tc_setup_action(filter_dev, fltr,
					  act->dev, ICE_MIRROR_PACKET);
		if (err)
			return err;

		break;

	default:
		NL_SET_ERR_MSG_MOD(fltr->extack, "Unsupported action in switchdev mode");
		return -EINVAL;
	}

	return 0;
}

static int
ice_eswitch_add_tc_fltr(struct ice_vsi *vsi, struct ice_tc_flower_fltr *fltr)
{
	struct ice_tc_flower_lyr_2_4_hdrs *headers = &fltr->outer_headers;
	struct ice_adv_rule_info rule_info = { 0 };
	struct ice_rule_query_data rule_added;
	struct ice_hw *hw = &vsi->back->hw;
	struct ice_adv_lkup_elem *list;
	u32 flags = fltr->flags;
	int lkups_cnt;
	int ret;
	int i;

	if (flags & ICE_TC_FLWR_FIELD_ENC_SRC_L4_PORT) {
		NL_SET_ERR_MSG_MOD(fltr->extack, "Unsupported encap field(s)");
		return -EOPNOTSUPP;
	}

	lkups_cnt = ice_tc_count_lkups(flags, headers, fltr);
	list = kcalloc(lkups_cnt, sizeof(*list), GFP_ATOMIC);
	if (!list)
		return -ENOMEM;

	i = ice_tc_fill_rules(hw, flags, fltr, list, &rule_info, NULL);
	if (i != lkups_cnt) {
		ret = -EINVAL;
		goto exit;
	}

	rule_info.sw_act.fltr_act = fltr->action.fltr_act;
	if (fltr->action.fltr_act != ICE_DROP_PACKET)
		rule_info.sw_act.vsi_handle = fltr->dest_vsi->idx;
	/* For now, making priority to be highest, and it also becomes
	 * the priority for recipe which will get created as a result of
	 * new extraction sequence based on input set.
	 * Priority '7' is max val for switch recipe, higher the number
	 * results into order of switch rule evaluation.
	 */
	rule_info.priority = 7;
	rule_info.flags_info.act_valid = true;

	if (fltr->direction == ICE_ESWITCH_FLTR_INGRESS) {
		/* Uplink to VF */
		rule_info.sw_act.flag |= ICE_FLTR_RX;
		rule_info.sw_act.src = hw->pf_id;
		rule_info.flags_info.act = ICE_SINGLE_ACT_LB_ENABLE;
	} else if (fltr->direction == ICE_ESWITCH_FLTR_EGRESS &&
		   fltr->dest_vsi == vsi->back->eswitch.uplink_vsi) {
		/* VF to Uplink */
		rule_info.sw_act.flag |= ICE_FLTR_TX;
		rule_info.sw_act.src = vsi->idx;
		rule_info.flags_info.act = ICE_SINGLE_ACT_LAN_ENABLE;
	} else {
		/* VF to VF */
		rule_info.sw_act.flag |= ICE_FLTR_TX;
		rule_info.sw_act.src = vsi->idx;
		rule_info.flags_info.act = ICE_SINGLE_ACT_LB_ENABLE;
	}

	/* specify the cookie as filter_rule_id */
	rule_info.fltr_rule_id = fltr->cookie;
	rule_info.src_vsi = vsi->idx;

	ret = ice_add_adv_rule(hw, list, lkups_cnt, &rule_info, &rule_added);
	if (ret == -EEXIST) {
		NL_SET_ERR_MSG_MOD(fltr->extack, "Unable to add filter because it already exist");
		ret = -EINVAL;
		goto exit;
	} else if (ret) {
		NL_SET_ERR_MSG_MOD(fltr->extack, "Unable to add filter due to error");
		goto exit;
	}

	/* store the output params, which are needed later for removing
	 * advanced switch filter
	 */
	fltr->rid = rule_added.rid;
	fltr->rule_id = rule_added.rule_id;
	fltr->dest_vsi_handle = rule_added.vsi_handle;

exit:
	kfree(list);
	return ret;
}

/**
 * ice_locate_vsi_using_queue - locate VSI using queue (forward to queue action)
 * @vsi: Pointer to VSI
 * @queue: Queue index
 *
 * Locate the VSI using specified "queue". When ADQ is not enabled,
 * always return input VSI, otherwise locate corresponding
 * VSI based on per channel "offset" and "qcount"
 */
struct ice_vsi *
ice_locate_vsi_using_queue(struct ice_vsi *vsi, int queue)
{
	int num_tc, tc;

	/* if ADQ is not active, passed VSI is the candidate VSI */
	if (!ice_is_adq_active(vsi->back))
		return vsi;

	/* Locate the VSI (it could still be main PF VSI or CHNL_VSI depending
	 * upon queue number)
	 */
	num_tc = vsi->mqprio_qopt.qopt.num_tc;

	for (tc = 0; tc < num_tc; tc++) {
		int qcount = vsi->mqprio_qopt.qopt.count[tc];
		int offset = vsi->mqprio_qopt.qopt.offset[tc];

		if (queue >= offset && queue < offset + qcount) {
			/* for non-ADQ TCs, passed VSI is the candidate VSI */
			if (tc < ICE_CHNL_START_TC)
				return vsi;
			else
				return vsi->tc_map_vsi[tc];
		}
	}
	return NULL;
}

static struct ice_rx_ring *
ice_locate_rx_ring_using_queue(struct ice_vsi *vsi,
			       struct ice_tc_flower_fltr *tc_fltr)
{
	u16 queue = tc_fltr->action.fwd.q.queue;

	return queue < vsi->num_rxq ? vsi->rx_rings[queue] : NULL;
}

/**
 * ice_tc_forward_action - Determine destination VSI and queue for the action
 * @vsi: Pointer to VSI
 * @tc_fltr: Pointer to TC flower filter structure
 *
 * Validates the tc forward action and determines the destination VSI and queue
 * for the forward action.
 */
static struct ice_vsi *
ice_tc_forward_action(struct ice_vsi *vsi, struct ice_tc_flower_fltr *tc_fltr)
{
	struct ice_rx_ring *ring = NULL;
	struct ice_vsi *dest_vsi = NULL;
	struct ice_pf *pf = vsi->back;
	struct device *dev;
	u32 tc_class;
	int q;

	dev = ice_pf_to_dev(pf);

	/* Get the destination VSI and/or destination queue and validate them */
	switch (tc_fltr->action.fltr_act) {
	case ICE_FWD_TO_VSI:
		tc_class = tc_fltr->action.fwd.tc.tc_class;
		/* Select the destination VSI */
		if (tc_class < ICE_CHNL_START_TC) {
			NL_SET_ERR_MSG_MOD(tc_fltr->extack,
					   "Unable to add filter because of unsupported destination");
			return ERR_PTR(-EOPNOTSUPP);
		}
		/* Locate ADQ VSI depending on hw_tc number */
		dest_vsi = vsi->tc_map_vsi[tc_class];
		break;
	case ICE_FWD_TO_Q:
		/* Locate the Rx queue */
		ring = ice_locate_rx_ring_using_queue(vsi, tc_fltr);
		if (!ring) {
			dev_err(dev,
				"Unable to locate Rx queue for action fwd_to_queue: %u\n",
				tc_fltr->action.fwd.q.queue);
			return ERR_PTR(-EINVAL);
		}
		/* Determine destination VSI even though the action is
		 * FWD_TO_QUEUE, because QUEUE is associated with VSI
		 */
		q = tc_fltr->action.fwd.q.queue;
		dest_vsi = ice_locate_vsi_using_queue(vsi, q);
		break;
	default:
		dev_err(dev,
			"Unable to add filter because of unsupported action %u (supported actions: fwd to tc, fwd to queue)\n",
			tc_fltr->action.fltr_act);
		return ERR_PTR(-EINVAL);
	}
	/* Must have valid dest_vsi (it could be main VSI or ADQ VSI) */
	if (!dest_vsi) {
		dev_err(dev,
			"Unable to add filter because specified destination VSI doesn't exist\n");
		return ERR_PTR(-EINVAL);
	}
	return dest_vsi;
}

/**
 * ice_add_tc_flower_adv_fltr - add appropriate filter rules
 * @vsi: Pointer to VSI
 * @tc_fltr: Pointer to TC flower filter structure
 *
 * based on filter parameters using Advance recipes supported
 * by OS package.
 */
static int
ice_add_tc_flower_adv_fltr(struct ice_vsi *vsi,
			   struct ice_tc_flower_fltr *tc_fltr)
{
	struct ice_tc_flower_lyr_2_4_hdrs *headers = &tc_fltr->outer_headers;
	struct ice_adv_rule_info rule_info = {0};
	struct ice_rule_query_data rule_added;
	struct ice_adv_lkup_elem *list;
	struct ice_pf *pf = vsi->back;
	struct ice_hw *hw = &pf->hw;
	u32 flags = tc_fltr->flags;
	struct ice_vsi *dest_vsi;
	struct device *dev;
	u16 lkups_cnt = 0;
	u16 l4_proto = 0;
	int ret = 0;
	u16 i = 0;

	dev = ice_pf_to_dev(pf);
	if (ice_is_safe_mode(pf)) {
		NL_SET_ERR_MSG_MOD(tc_fltr->extack, "Unable to add filter because driver is in safe mode");
		return -EOPNOTSUPP;
	}

	if (!flags || (flags & (ICE_TC_FLWR_FIELD_ENC_DEST_IPV4 |
				ICE_TC_FLWR_FIELD_ENC_SRC_IPV4 |
				ICE_TC_FLWR_FIELD_ENC_DEST_IPV6 |
				ICE_TC_FLWR_FIELD_ENC_SRC_IPV6 |
				ICE_TC_FLWR_FIELD_ENC_SRC_L4_PORT))) {
		NL_SET_ERR_MSG_MOD(tc_fltr->extack, "Unsupported encap field(s)");
		return -EOPNOTSUPP;
	}

	/* validate forwarding action VSI and queue */
	if (ice_is_forward_action(tc_fltr->action.fltr_act)) {
		dest_vsi = ice_tc_forward_action(vsi, tc_fltr);
		if (IS_ERR(dest_vsi))
			return PTR_ERR(dest_vsi);
	}

	lkups_cnt = ice_tc_count_lkups(flags, headers, tc_fltr);
	list = kcalloc(lkups_cnt, sizeof(*list), GFP_ATOMIC);
	if (!list)
		return -ENOMEM;

	i = ice_tc_fill_rules(hw, flags, tc_fltr, list, &rule_info, &l4_proto);
	if (i != lkups_cnt) {
		ret = -EINVAL;
		goto exit;
	}

	rule_info.sw_act.fltr_act = tc_fltr->action.fltr_act;
	/* specify the cookie as filter_rule_id */
	rule_info.fltr_rule_id = tc_fltr->cookie;

	switch (tc_fltr->action.fltr_act) {
	case ICE_FWD_TO_VSI:
		rule_info.sw_act.vsi_handle = dest_vsi->idx;
		rule_info.priority = ICE_SWITCH_FLTR_PRIO_VSI;
		rule_info.sw_act.src = hw->pf_id;
		dev_dbg(dev, "add switch rule for TC:%u vsi_idx:%u, lkups_cnt:%u\n",
			tc_fltr->action.fwd.tc.tc_class,
			rule_info.sw_act.vsi_handle, lkups_cnt);
		break;
	case ICE_FWD_TO_Q:
		/* HW queue number in global space */
		rule_info.sw_act.fwd_id.q_id = tc_fltr->action.fwd.q.hw_queue;
		rule_info.sw_act.vsi_handle = dest_vsi->idx;
		rule_info.priority = ICE_SWITCH_FLTR_PRIO_QUEUE;
		rule_info.sw_act.src = hw->pf_id;
		dev_dbg(dev, "add switch rule action to forward to queue:%u (HW queue %u), lkups_cnt:%u\n",
			tc_fltr->action.fwd.q.queue,
			tc_fltr->action.fwd.q.hw_queue, lkups_cnt);
		break;
	case ICE_DROP_PACKET:
		rule_info.sw_act.flag |= ICE_FLTR_RX;
		rule_info.sw_act.src = hw->pf_id;
		rule_info.priority = ICE_SWITCH_FLTR_PRIO_VSI;
		break;
	default:
		ret = -EOPNOTSUPP;
		goto exit;
	}

	ret = ice_add_adv_rule(hw, list, lkups_cnt, &rule_info, &rule_added);
	if (ret == -EEXIST) {
		NL_SET_ERR_MSG_MOD(tc_fltr->extack,
				   "Unable to add filter because it already exist");
		ret = -EINVAL;
		goto exit;
	} else if (ret) {
		NL_SET_ERR_MSG_MOD(tc_fltr->extack,
				   "Unable to add filter due to error");
		goto exit;
	}

	/* store the output params, which are needed later for removing
	 * advanced switch filter
	 */
	tc_fltr->rid = rule_added.rid;
	tc_fltr->rule_id = rule_added.rule_id;
	tc_fltr->dest_vsi_handle = rule_added.vsi_handle;
	if (tc_fltr->action.fltr_act == ICE_FWD_TO_VSI ||
	    tc_fltr->action.fltr_act == ICE_FWD_TO_Q) {
		tc_fltr->dest_vsi = dest_vsi;
		/* keep track of advanced switch filter for
		 * destination VSI
		 */
		dest_vsi->num_chnl_fltr++;

		/* keeps track of channel filters for PF VSI */
		if (vsi->type == ICE_VSI_PF &&
		    (flags & (ICE_TC_FLWR_FIELD_DST_MAC |
			      ICE_TC_FLWR_FIELD_ENC_DST_MAC)))
			pf->num_dmac_chnl_fltrs++;
	}
	switch (tc_fltr->action.fltr_act) {
	case ICE_FWD_TO_VSI:
		dev_dbg(dev, "added switch rule (lkups_cnt %u, flags 0x%x), action is forward to TC %u, rid %u, rule_id %u, vsi_idx %u\n",
			lkups_cnt, flags,
			tc_fltr->action.fwd.tc.tc_class, rule_added.rid,
			rule_added.rule_id, rule_added.vsi_handle);
		break;
	case ICE_FWD_TO_Q:
		dev_dbg(dev, "added switch rule (lkups_cnt %u, flags 0x%x), action is forward to queue: %u (HW queue %u)     , rid %u, rule_id %u\n",
			lkups_cnt, flags, tc_fltr->action.fwd.q.queue,
			tc_fltr->action.fwd.q.hw_queue, rule_added.rid,
			rule_added.rule_id);
		break;
	case ICE_DROP_PACKET:
		dev_dbg(dev, "added switch rule (lkups_cnt %u, flags 0x%x), action is drop, rid %u, rule_id %u\n",
			lkups_cnt, flags, rule_added.rid, rule_added.rule_id);
		break;
	default:
		break;
	}
exit:
	kfree(list);
	return ret;
}

/**
 * ice_tc_set_pppoe - Parse PPPoE fields from TC flower filter
 * @match: Pointer to flow match structure
 * @fltr: Pointer to filter structure
 * @headers: Pointer to outer header fields
 * @returns PPP protocol used in filter (ppp_ses or ppp_disc)
 */
static u16
ice_tc_set_pppoe(struct flow_match_pppoe *match,
		 struct ice_tc_flower_fltr *fltr,
		 struct ice_tc_flower_lyr_2_4_hdrs *headers)
{
	if (match->mask->session_id) {
		fltr->flags |= ICE_TC_FLWR_FIELD_PPPOE_SESSID;
		headers->pppoe_hdr.session_id = match->key->session_id;
	}

	if (match->mask->ppp_proto) {
		fltr->flags |= ICE_TC_FLWR_FIELD_PPP_PROTO;
		headers->pppoe_hdr.ppp_proto = match->key->ppp_proto;
	}

	return be16_to_cpu(match->key->type);
}

/**
 * ice_tc_set_ipv4 - Parse IPv4 addresses from TC flower filter
 * @match: Pointer to flow match structure
 * @fltr: Pointer to filter structure
 * @headers: inner or outer header fields
 * @is_encap: set true for tunnel IPv4 address
 */
static int
ice_tc_set_ipv4(struct flow_match_ipv4_addrs *match,
		struct ice_tc_flower_fltr *fltr,
		struct ice_tc_flower_lyr_2_4_hdrs *headers, bool is_encap)
{
	if (match->key->dst) {
		if (is_encap)
			fltr->flags |= ICE_TC_FLWR_FIELD_ENC_DEST_IPV4;
		else
			fltr->flags |= ICE_TC_FLWR_FIELD_DEST_IPV4;
		headers->l3_key.dst_ipv4 = match->key->dst;
		headers->l3_mask.dst_ipv4 = match->mask->dst;
	}
	if (match->key->src) {
		if (is_encap)
			fltr->flags |= ICE_TC_FLWR_FIELD_ENC_SRC_IPV4;
		else
			fltr->flags |= ICE_TC_FLWR_FIELD_SRC_IPV4;
		headers->l3_key.src_ipv4 = match->key->src;
		headers->l3_mask.src_ipv4 = match->mask->src;
	}
	return 0;
}

/**
 * ice_tc_set_ipv6 - Parse IPv6 addresses from TC flower filter
 * @match: Pointer to flow match structure
 * @fltr: Pointer to filter structure
 * @headers: inner or outer header fields
 * @is_encap: set true for tunnel IPv6 address
 */
static int
ice_tc_set_ipv6(struct flow_match_ipv6_addrs *match,
		struct ice_tc_flower_fltr *fltr,
		struct ice_tc_flower_lyr_2_4_hdrs *headers, bool is_encap)
{
	struct ice_tc_l3_hdr *l3_key, *l3_mask;

	/* src and dest IPV6 address should not be LOOPBACK
	 * (0:0:0:0:0:0:0:1), which can be represented as ::1
	 */
	if (ipv6_addr_loopback(&match->key->dst) ||
	    ipv6_addr_loopback(&match->key->src)) {
		NL_SET_ERR_MSG_MOD(fltr->extack, "Bad IPv6, addr is LOOPBACK");
		return -EINVAL;
	}
	/* if src/dest IPv6 address is *,* error */
	if (ipv6_addr_any(&match->mask->dst) &&
	    ipv6_addr_any(&match->mask->src)) {
		NL_SET_ERR_MSG_MOD(fltr->extack, "Bad src/dest IPv6, addr is any");
		return -EINVAL;
	}
	if (!ipv6_addr_any(&match->mask->dst)) {
		if (is_encap)
			fltr->flags |= ICE_TC_FLWR_FIELD_ENC_DEST_IPV6;
		else
			fltr->flags |= ICE_TC_FLWR_FIELD_DEST_IPV6;
	}
	if (!ipv6_addr_any(&match->mask->src)) {
		if (is_encap)
			fltr->flags |= ICE_TC_FLWR_FIELD_ENC_SRC_IPV6;
		else
			fltr->flags |= ICE_TC_FLWR_FIELD_SRC_IPV6;
	}

	l3_key = &headers->l3_key;
	l3_mask = &headers->l3_mask;

	if (fltr->flags & (ICE_TC_FLWR_FIELD_ENC_SRC_IPV6 |
			   ICE_TC_FLWR_FIELD_SRC_IPV6)) {
		memcpy(&l3_key->src_ipv6_addr, &match->key->src.s6_addr,
		       sizeof(match->key->src.s6_addr));
		memcpy(&l3_mask->src_ipv6_addr, &match->mask->src.s6_addr,
		       sizeof(match->mask->src.s6_addr));
	}
	if (fltr->flags & (ICE_TC_FLWR_FIELD_ENC_DEST_IPV6 |
			   ICE_TC_FLWR_FIELD_DEST_IPV6)) {
		memcpy(&l3_key->dst_ipv6_addr, &match->key->dst.s6_addr,
		       sizeof(match->key->dst.s6_addr));
		memcpy(&l3_mask->dst_ipv6_addr, &match->mask->dst.s6_addr,
		       sizeof(match->mask->dst.s6_addr));
	}

	return 0;
}

/**
 * ice_tc_set_tos_ttl - Parse IP ToS/TTL from TC flower filter
 * @match: Pointer to flow match structure
 * @fltr: Pointer to filter structure
 * @headers: inner or outer header fields
 * @is_encap: set true for tunnel
 */
static void
ice_tc_set_tos_ttl(struct flow_match_ip *match,
		   struct ice_tc_flower_fltr *fltr,
		   struct ice_tc_flower_lyr_2_4_hdrs *headers,
		   bool is_encap)
{
	if (match->mask->tos) {
		if (is_encap)
			fltr->flags |= ICE_TC_FLWR_FIELD_ENC_IP_TOS;
		else
			fltr->flags |= ICE_TC_FLWR_FIELD_IP_TOS;

		headers->l3_key.tos = match->key->tos;
		headers->l3_mask.tos = match->mask->tos;
	}

	if (match->mask->ttl) {
		if (is_encap)
			fltr->flags |= ICE_TC_FLWR_FIELD_ENC_IP_TTL;
		else
			fltr->flags |= ICE_TC_FLWR_FIELD_IP_TTL;

		headers->l3_key.ttl = match->key->ttl;
		headers->l3_mask.ttl = match->mask->ttl;
	}
}

/**
 * ice_tc_set_port - Parse ports from TC flower filter
 * @match: Flow match structure
 * @fltr: Pointer to filter structure
 * @headers: inner or outer header fields
 * @is_encap: set true for tunnel port
 */
static int
ice_tc_set_port(struct flow_match_ports match,
		struct ice_tc_flower_fltr *fltr,
		struct ice_tc_flower_lyr_2_4_hdrs *headers, bool is_encap)
{
	if (match.key->dst) {
		if (is_encap)
			fltr->flags |= ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT;
		else
			fltr->flags |= ICE_TC_FLWR_FIELD_DEST_L4_PORT;

		headers->l4_key.dst_port = match.key->dst;
		headers->l4_mask.dst_port = match.mask->dst;
	}
	if (match.key->src) {
		if (is_encap)
			fltr->flags |= ICE_TC_FLWR_FIELD_ENC_SRC_L4_PORT;
		else
			fltr->flags |= ICE_TC_FLWR_FIELD_SRC_L4_PORT;

		headers->l4_key.src_port = match.key->src;
		headers->l4_mask.src_port = match.mask->src;
	}
	return 0;
}

static struct net_device *
ice_get_tunnel_device(struct net_device *dev, struct flow_rule *rule)
{
	struct flow_action_entry *act;
	int i;

	if (ice_is_tunnel_supported(dev))
		return dev;

	flow_action_for_each(i, act, &rule->action) {
		if (act->id == FLOW_ACTION_REDIRECT &&
		    ice_is_tunnel_supported(act->dev))
			return act->dev;
	}

	return NULL;
}

/**
 * ice_parse_gtp_type - Sets GTP tunnel type to GTP-U or GTP-C
 * @match: Flow match structure
 * @fltr: Pointer to filter structure
 *
 * GTP-C/GTP-U is selected based on destination port number (enc_dst_port).
 * Before calling this funtcion, fltr->tunnel_type should be set to TNL_GTPU,
 * therefore making GTP-U the default choice (when destination port number is
 * not specified).
 */
static int
ice_parse_gtp_type(struct flow_match_ports match,
		   struct ice_tc_flower_fltr *fltr)
{
	u16 dst_port;

	if (match.key->dst) {
		dst_port = be16_to_cpu(match.key->dst);

		switch (dst_port) {
		case 2152:
			break;
		case 2123:
			fltr->tunnel_type = TNL_GTPC;
			break;
		default:
			NL_SET_ERR_MSG_MOD(fltr->extack, "Unsupported GTP port number");
			return -EINVAL;
		}
	}

	return 0;
}

static int
ice_parse_tunnel_attr(struct net_device *dev, struct flow_rule *rule,
		      struct ice_tc_flower_fltr *fltr)
{
	struct ice_tc_flower_lyr_2_4_hdrs *headers = &fltr->outer_headers;
	struct flow_match_control enc_control;

	fltr->tunnel_type = ice_tc_tun_get_type(dev);
	headers->l3_key.ip_proto = IPPROTO_UDP;

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
		struct flow_match_enc_keyid enc_keyid;

		flow_rule_match_enc_keyid(rule, &enc_keyid);

		if (!enc_keyid.mask->keyid ||
		    enc_keyid.mask->keyid != cpu_to_be32(ICE_TC_FLOWER_MASK_32))
			return -EINVAL;

		fltr->flags |= ICE_TC_FLWR_FIELD_TENANT_ID;
		fltr->tenant_id = enc_keyid.key->keyid;
	}

	flow_rule_match_enc_control(rule, &enc_control);

	if (enc_control.key->addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
		struct flow_match_ipv4_addrs match;

		flow_rule_match_enc_ipv4_addrs(rule, &match);
		if (ice_tc_set_ipv4(&match, fltr, headers, true))
			return -EINVAL;
	} else if (enc_control.key->addr_type ==
					FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
		struct flow_match_ipv6_addrs match;

		flow_rule_match_enc_ipv6_addrs(rule, &match);
		if (ice_tc_set_ipv6(&match, fltr, headers, true))
			return -EINVAL;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_IP)) {
		struct flow_match_ip match;

		flow_rule_match_enc_ip(rule, &match);
		ice_tc_set_tos_ttl(&match, fltr, headers, true);
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_PORTS) &&
	    fltr->tunnel_type != TNL_VXLAN && fltr->tunnel_type != TNL_GENEVE) {
		struct flow_match_ports match;

		flow_rule_match_enc_ports(rule, &match);

		if (fltr->tunnel_type != TNL_GTPU) {
			if (ice_tc_set_port(match, fltr, headers, true))
				return -EINVAL;
		} else {
			if (ice_parse_gtp_type(match, fltr))
				return -EINVAL;
		}
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_OPTS) &&
	    (fltr->tunnel_type == TNL_GTPU || fltr->tunnel_type == TNL_GTPC)) {
		struct flow_match_enc_opts match;

		flow_rule_match_enc_opts(rule, &match);

		memcpy(&fltr->gtp_pdu_info_keys, &match.key->data[0],
		       sizeof(struct gtp_pdu_session_info));

		memcpy(&fltr->gtp_pdu_info_masks, &match.mask->data[0],
		       sizeof(struct gtp_pdu_session_info));

		fltr->flags |= ICE_TC_FLWR_FIELD_GTP_OPTS;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ENC_OPTS) &&
	    fltr->tunnel_type == TNL_PFCP) {
		struct flow_match_enc_opts match;

		flow_rule_match_enc_opts(rule, &match);

		memcpy(&fltr->pfcp_meta_keys, match.key->data,
		       sizeof(struct pfcp_metadata));
		memcpy(&fltr->pfcp_meta_masks, match.mask->data,
		       sizeof(struct pfcp_metadata));

		fltr->flags |= ICE_TC_FLWR_FIELD_PFCP_OPTS;
	}

	return 0;
}

/**
 * ice_parse_cls_flower - Parse TC flower filters provided by kernel
 * @vsi: Pointer to the VSI
 * @filter_dev: Pointer to device on which filter is being added
 * @f: Pointer to struct flow_cls_offload
 * @fltr: Pointer to filter structure
 */
static int
ice_parse_cls_flower(struct net_device *filter_dev, struct ice_vsi *vsi,
		     struct flow_cls_offload *f,
		     struct ice_tc_flower_fltr *fltr)
{
	struct ice_tc_flower_lyr_2_4_hdrs *headers = &fltr->outer_headers;
	struct flow_rule *rule = flow_cls_offload_flow_rule(f);
	u16 n_proto_mask = 0, n_proto_key = 0, addr_type = 0;
	struct flow_dissector *dissector;
	struct net_device *tunnel_dev;

	dissector = rule->match.dissector;

	if (dissector->used_keys &
	    ~(BIT_ULL(FLOW_DISSECTOR_KEY_CONTROL) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_BASIC) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_VLAN) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_CVLAN) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_ENC_CONTROL) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_ENC_KEYID) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_ENC_PORTS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_ENC_OPTS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_IP) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_ENC_IP) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_PORTS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_PPPOE) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_L2TPV3))) {
		NL_SET_ERR_MSG_MOD(fltr->extack, "Unsupported key used");
		return -EOPNOTSUPP;
	}

	tunnel_dev = ice_get_tunnel_device(filter_dev, rule);
	if (tunnel_dev) {
		int err;

		filter_dev = tunnel_dev;

		err = ice_parse_tunnel_attr(filter_dev, rule, fltr);
		if (err) {
			NL_SET_ERR_MSG_MOD(fltr->extack, "Failed to parse TC flower tunnel attributes");
			return err;
		}

		/* PFCP is considered non-tunneled - don't swap headers. */
		if (fltr->tunnel_type != TNL_PFCP) {
			/* Header pointers should point to the inner headers,
			 * outer header were already set by
			 * ice_parse_tunnel_attr().
			 */
			headers = &fltr->inner_headers;
		}
	} else if (dissector->used_keys &
		  (BIT_ULL(FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS) |
		   BIT_ULL(FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS) |
		   BIT_ULL(FLOW_DISSECTOR_KEY_ENC_KEYID) |
		   BIT_ULL(FLOW_DISSECTOR_KEY_ENC_PORTS) |
		   BIT_ULL(FLOW_DISSECTOR_KEY_ENC_IP) |
		   BIT_ULL(FLOW_DISSECTOR_KEY_ENC_OPTS) |
		   BIT_ULL(FLOW_DISSECTOR_KEY_ENC_CONTROL))) {
		NL_SET_ERR_MSG_MOD(fltr->extack, "Tunnel key used, but device isn't a tunnel");
		return -EOPNOTSUPP;
	} else {
		fltr->tunnel_type = TNL_LAST;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
		struct flow_match_basic match;

		flow_rule_match_basic(rule, &match);

		n_proto_key = ntohs(match.key->n_proto);
		n_proto_mask = ntohs(match.mask->n_proto);

		if (n_proto_key == ETH_P_ALL || n_proto_key == 0 ||
		    fltr->tunnel_type == TNL_GTPU ||
		    fltr->tunnel_type == TNL_GTPC) {
			n_proto_key = 0;
			n_proto_mask = 0;
		} else {
			fltr->flags |= ICE_TC_FLWR_FIELD_ETH_TYPE_ID;
		}

		headers->l2_key.n_proto = cpu_to_be16(n_proto_key);
		headers->l2_mask.n_proto = cpu_to_be16(n_proto_mask);
		headers->l3_key.ip_proto = match.key->ip_proto;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
		struct flow_match_eth_addrs match;

		flow_rule_match_eth_addrs(rule, &match);

		if (!is_zero_ether_addr(match.key->dst)) {
			ether_addr_copy(headers->l2_key.dst_mac,
					match.key->dst);
			ether_addr_copy(headers->l2_mask.dst_mac,
					match.mask->dst);
			fltr->flags |= ICE_TC_FLWR_FIELD_DST_MAC;
		}

		if (!is_zero_ether_addr(match.key->src)) {
			ether_addr_copy(headers->l2_key.src_mac,
					match.key->src);
			ether_addr_copy(headers->l2_mask.src_mac,
					match.mask->src);
			fltr->flags |= ICE_TC_FLWR_FIELD_SRC_MAC;
		}
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN) ||
	    is_vlan_dev(filter_dev)) {
		struct flow_dissector_key_vlan mask;
		struct flow_dissector_key_vlan key;
		struct flow_match_vlan match;

		if (is_vlan_dev(filter_dev)) {
			match.key = &key;
			match.key->vlan_id = vlan_dev_vlan_id(filter_dev);
			match.key->vlan_priority = 0;
			match.mask = &mask;
			memset(match.mask, 0xff, sizeof(*match.mask));
			match.mask->vlan_priority = 0;
		} else {
			flow_rule_match_vlan(rule, &match);
		}

		if (match.mask->vlan_id) {
			if (match.mask->vlan_id == VLAN_VID_MASK) {
				fltr->flags |= ICE_TC_FLWR_FIELD_VLAN;
				headers->vlan_hdr.vlan_id =
					cpu_to_be16(match.key->vlan_id &
						    VLAN_VID_MASK);
			} else {
				NL_SET_ERR_MSG_MOD(fltr->extack, "Bad VLAN mask");
				return -EINVAL;
			}
		}

		if (match.mask->vlan_priority) {
			fltr->flags |= ICE_TC_FLWR_FIELD_VLAN_PRIO;
			headers->vlan_hdr.vlan_prio =
				be16_encode_bits(match.key->vlan_priority,
						 VLAN_PRIO_MASK);
		}

		if (match.mask->vlan_tpid) {
			headers->vlan_hdr.vlan_tpid = match.key->vlan_tpid;
			fltr->flags |= ICE_TC_FLWR_FIELD_VLAN_TPID;
		}
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CVLAN)) {
		struct flow_match_vlan match;

		if (!ice_is_dvm_ena(&vsi->back->hw)) {
			NL_SET_ERR_MSG_MOD(fltr->extack, "Double VLAN mode is not enabled");
			return -EINVAL;
		}

		flow_rule_match_cvlan(rule, &match);

		if (match.mask->vlan_id) {
			if (match.mask->vlan_id == VLAN_VID_MASK) {
				fltr->flags |= ICE_TC_FLWR_FIELD_CVLAN;
				headers->cvlan_hdr.vlan_id =
					cpu_to_be16(match.key->vlan_id &
						    VLAN_VID_MASK);
			} else {
				NL_SET_ERR_MSG_MOD(fltr->extack,
						   "Bad CVLAN mask");
				return -EINVAL;
			}
		}

		if (match.mask->vlan_priority) {
			fltr->flags |= ICE_TC_FLWR_FIELD_CVLAN_PRIO;
			headers->cvlan_hdr.vlan_prio =
				be16_encode_bits(match.key->vlan_priority,
						 VLAN_PRIO_MASK);
		}
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PPPOE)) {
		struct flow_match_pppoe match;

		flow_rule_match_pppoe(rule, &match);
		n_proto_key = ice_tc_set_pppoe(&match, fltr, headers);

		/* If ethertype equals ETH_P_PPP_SES, n_proto might be
		 * overwritten by encapsulated protocol (ppp_proto field) or set
		 * to 0. To correct this, flow_match_pppoe provides the type
		 * field, which contains the actual ethertype (ETH_P_PPP_SES).
		 */
		headers->l2_key.n_proto = cpu_to_be16(n_proto_key);
		headers->l2_mask.n_proto = cpu_to_be16(0xFFFF);
		fltr->flags |= ICE_TC_FLWR_FIELD_ETH_TYPE_ID;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CONTROL)) {
		struct flow_match_control match;

		flow_rule_match_control(rule, &match);

		addr_type = match.key->addr_type;

		if (flow_rule_has_control_flags(match.mask->flags,
						fltr->extack))
			return -EOPNOTSUPP;
	}

	if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
		struct flow_match_ipv4_addrs match;

		flow_rule_match_ipv4_addrs(rule, &match);
		if (ice_tc_set_ipv4(&match, fltr, headers, false))
			return -EINVAL;
	}

	if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
		struct flow_match_ipv6_addrs match;

		flow_rule_match_ipv6_addrs(rule, &match);
		if (ice_tc_set_ipv6(&match, fltr, headers, false))
			return -EINVAL;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IP)) {
		struct flow_match_ip match;

		flow_rule_match_ip(rule, &match);
		ice_tc_set_tos_ttl(&match, fltr, headers, false);
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_L2TPV3)) {
		struct flow_match_l2tpv3 match;

		flow_rule_match_l2tpv3(rule, &match);

		fltr->flags |= ICE_TC_FLWR_FIELD_L2TPV3_SESSID;
		headers->l2tpv3_hdr.session_id = match.key->session_id;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
		struct flow_match_ports match;

		flow_rule_match_ports(rule, &match);
		if (ice_tc_set_port(match, fltr, headers, false))
			return -EINVAL;
		switch (headers->l3_key.ip_proto) {
		case IPPROTO_TCP:
		case IPPROTO_UDP:
			break;
		default:
			NL_SET_ERR_MSG_MOD(fltr->extack, "Only UDP and TCP transport are supported");
			return -EINVAL;
		}
	}
	return 0;
}

/**
 * ice_add_switch_fltr - Add TC flower filters
 * @vsi: Pointer to VSI
 * @fltr: Pointer to struct ice_tc_flower_fltr
 *
 * Add filter in HW switch block
 */
static int
ice_add_switch_fltr(struct ice_vsi *vsi, struct ice_tc_flower_fltr *fltr)
{
	if (fltr->action.fltr_act == ICE_FWD_TO_QGRP)
		return -EOPNOTSUPP;

	if (ice_is_eswitch_mode_switchdev(vsi->back))
		return ice_eswitch_add_tc_fltr(vsi, fltr);

	return ice_add_tc_flower_adv_fltr(vsi, fltr);
}

/**
 * ice_prep_adq_filter - Prepare ADQ filter with the required additional headers
 * @vsi: Pointer to VSI
 * @fltr: Pointer to TC flower filter structure
 *
 * Prepare ADQ filter with the required additional header fields
 */
static int
ice_prep_adq_filter(struct ice_vsi *vsi, struct ice_tc_flower_fltr *fltr)
{
	if ((fltr->flags & ICE_TC_FLWR_FIELD_TENANT_ID) &&
	    (fltr->flags & (ICE_TC_FLWR_FIELD_DST_MAC |
			   ICE_TC_FLWR_FIELD_SRC_MAC))) {
		NL_SET_ERR_MSG_MOD(fltr->extack,
				   "Unable to add filter because filter using tunnel key and inner MAC is unsupported combination");
		return -EOPNOTSUPP;
	}

	/* For ADQ, filter must include dest MAC address, otherwise unwanted
	 * packets with unrelated MAC address get delivered to ADQ VSIs as long
	 * as remaining filter criteria is satisfied such as dest IP address
	 * and dest/src L4 port. Below code handles the following cases:
	 * 1. For non-tunnel, if user specify MAC addresses, use them.
	 * 2. For non-tunnel, if user didn't specify MAC address, add implicit
	 * dest MAC to be lower netdev's active unicast MAC address
	 * 3. For tunnel,  as of now TC-filter through flower classifier doesn't
	 * have provision for user to specify outer DMAC, hence driver to
	 * implicitly add outer dest MAC to be lower netdev's active unicast
	 * MAC address.
	 */
	if (fltr->tunnel_type != TNL_LAST &&
	    !(fltr->flags & ICE_TC_FLWR_FIELD_ENC_DST_MAC))
		fltr->flags |= ICE_TC_FLWR_FIELD_ENC_DST_MAC;

	if (fltr->tunnel_type == TNL_LAST &&
	    !(fltr->flags & ICE_TC_FLWR_FIELD_DST_MAC))
		fltr->flags |= ICE_TC_FLWR_FIELD_DST_MAC;

	if (fltr->flags & (ICE_TC_FLWR_FIELD_DST_MAC |
			   ICE_TC_FLWR_FIELD_ENC_DST_MAC)) {
		ether_addr_copy(fltr->outer_headers.l2_key.dst_mac,
				vsi->netdev->dev_addr);
		eth_broadcast_addr(fltr->outer_headers.l2_mask.dst_mac);
	}

	/* Make sure VLAN is already added to main VSI, before allowing ADQ to
	 * add a VLAN based filter such as MAC + VLAN + L4 port.
	 */
	if (fltr->flags & ICE_TC_FLWR_FIELD_VLAN) {
		u16 vlan_id = be16_to_cpu(fltr->outer_headers.vlan_hdr.vlan_id);

		if (!ice_vlan_fltr_exist(&vsi->back->hw, vlan_id, vsi->idx)) {
			NL_SET_ERR_MSG_MOD(fltr->extack,
					   "Unable to add filter because legacy VLAN filter for specified destination doesn't exist");
			return -EINVAL;
		}
	}
	return 0;
}

/**
 * ice_handle_tclass_action - Support directing to a traffic class
 * @vsi: Pointer to VSI
 * @cls_flower: Pointer to TC flower offload structure
 * @fltr: Pointer to TC flower filter structure
 *
 * Support directing traffic to a traffic class/queue-set
 */
static int
ice_handle_tclass_action(struct ice_vsi *vsi,
			 struct flow_cls_offload *cls_flower,
			 struct ice_tc_flower_fltr *fltr)
{
	int tc = tc_classid_to_hwtc(vsi->netdev, cls_flower->classid);

	/* user specified hw_tc (must be non-zero for ADQ TC), action is forward
	 * to hw_tc (i.e. ADQ channel number)
	 */
	if (tc < ICE_CHNL_START_TC) {
		NL_SET_ERR_MSG_MOD(fltr->extack,
				   "Unable to add filter because of unsupported destination");
		return -EOPNOTSUPP;
	}
	if (!(vsi->all_enatc & BIT(tc))) {
		NL_SET_ERR_MSG_MOD(fltr->extack,
				   "Unable to add filter because of non-existence destination");
		return -EINVAL;
	}
	fltr->action.fltr_act = ICE_FWD_TO_VSI;
	fltr->action.fwd.tc.tc_class = tc;

	return ice_prep_adq_filter(vsi, fltr);
}

static int
ice_tc_forward_to_queue(struct ice_vsi *vsi, struct ice_tc_flower_fltr *fltr,
			struct flow_action_entry *act)
{
	struct ice_vsi *ch_vsi = NULL;
	u16 queue = act->rx_queue;

	if (queue >= vsi->num_rxq) {
		NL_SET_ERR_MSG_MOD(fltr->extack,
				   "Unable to add filter because specified queue is invalid");
		return -EINVAL;
	}
	fltr->action.fltr_act = ICE_FWD_TO_Q;
	fltr->action.fwd.q.queue = queue;
	/* determine corresponding HW queue */
	fltr->action.fwd.q.hw_queue = vsi->rxq_map[queue];

	/* If ADQ is configured, and the queue belongs to ADQ VSI, then prepare
	 * ADQ switch filter
	 */
	ch_vsi = ice_locate_vsi_using_queue(vsi, fltr->action.fwd.q.queue);
	if (!ch_vsi)
		return -EINVAL;
	fltr->dest_vsi = ch_vsi;
	if (!ice_is_chnl_fltr(fltr))
		return 0;

	return ice_prep_adq_filter(vsi, fltr);
}

static int
ice_tc_parse_action(struct ice_vsi *vsi, struct ice_tc_flower_fltr *fltr,
		    struct flow_action_entry *act)
{
	switch (act->id) {
	case FLOW_ACTION_RX_QUEUE_MAPPING:
		/* forward to queue */
		return ice_tc_forward_to_queue(vsi, fltr, act);
	case FLOW_ACTION_DROP:
		fltr->action.fltr_act = ICE_DROP_PACKET;
		return 0;
	default:
		NL_SET_ERR_MSG_MOD(fltr->extack, "Unsupported TC action");
		return -EOPNOTSUPP;
	}
}

/**
 * ice_parse_tc_flower_actions - Parse the actions for a TC filter
 * @filter_dev: Pointer to device on which filter is being added
 * @vsi: Pointer to VSI
 * @cls_flower: Pointer to TC flower offload structure
 * @fltr: Pointer to TC flower filter structure
 *
 * Parse the actions for a TC filter
 */
static int ice_parse_tc_flower_actions(struct net_device *filter_dev,
				       struct ice_vsi *vsi,
				       struct flow_cls_offload *cls_flower,
				       struct ice_tc_flower_fltr *fltr)
{
	struct flow_rule *rule = flow_cls_offload_flow_rule(cls_flower);
	struct flow_action *flow_action = &rule->action;
	struct flow_action_entry *act;
	int i, err;

	if (cls_flower->classid)
		return ice_handle_tclass_action(vsi, cls_flower, fltr);

	if (!flow_action_has_entries(flow_action))
		return -EINVAL;

	flow_action_for_each(i, act, flow_action) {
		if (ice_is_eswitch_mode_switchdev(vsi->back))
			err = ice_eswitch_tc_parse_action(filter_dev, fltr, act);
		else
			err = ice_tc_parse_action(vsi, fltr, act);
		if (err)
			return err;
		continue;
	}
	return 0;
}

/**
 * ice_del_tc_fltr - deletes a filter from HW table
 * @vsi: Pointer to VSI
 * @fltr: Pointer to struct ice_tc_flower_fltr
 *
 * This function deletes a filter from HW table and manages book-keeping
 */
static int ice_del_tc_fltr(struct ice_vsi *vsi, struct ice_tc_flower_fltr *fltr)
{
	struct ice_rule_query_data rule_rem;
	struct ice_pf *pf = vsi->back;
	int err;

	rule_rem.rid = fltr->rid;
	rule_rem.rule_id = fltr->rule_id;
	rule_rem.vsi_handle = fltr->dest_vsi_handle;
	err = ice_rem_adv_rule_by_id(&pf->hw, &rule_rem);
	if (err) {
		if (err == -ENOENT) {
			NL_SET_ERR_MSG_MOD(fltr->extack, "Filter does not exist");
			return -ENOENT;
		}
		NL_SET_ERR_MSG_MOD(fltr->extack, "Failed to delete TC flower filter");
		return -EIO;
	}

	/* update advanced switch filter count for destination
	 * VSI if filter destination was VSI
	 */
	if (fltr->dest_vsi) {
		if (fltr->dest_vsi->type == ICE_VSI_CHNL) {
			fltr->dest_vsi->num_chnl_fltr--;

			/* keeps track of channel filters for PF VSI */
			if (vsi->type == ICE_VSI_PF &&
			    (fltr->flags & (ICE_TC_FLWR_FIELD_DST_MAC |
					    ICE_TC_FLWR_FIELD_ENC_DST_MAC)))
				pf->num_dmac_chnl_fltrs--;
		}
	}
	return 0;
}

/**
 * ice_add_tc_fltr - adds a TC flower filter
 * @netdev: Pointer to netdev
 * @vsi: Pointer to VSI
 * @f: Pointer to flower offload structure
 * @__fltr: Pointer to struct ice_tc_flower_fltr
 *
 * This function parses TC-flower input fields, parses action,
 * and adds a filter.
 */
static int
ice_add_tc_fltr(struct net_device *netdev, struct ice_vsi *vsi,
		struct flow_cls_offload *f,
		struct ice_tc_flower_fltr **__fltr)
{
	struct ice_tc_flower_fltr *fltr;
	int err;

	/* by default, set output to be INVALID */
	*__fltr = NULL;

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

	fltr->cookie = f->cookie;
	fltr->extack = f->common.extack;
	fltr->src_vsi = vsi;
	INIT_HLIST_NODE(&fltr->tc_flower_node);

	err = ice_parse_cls_flower(netdev, vsi, f, fltr);
	if (err < 0)
		goto err;

	err = ice_parse_tc_flower_actions(netdev, vsi, f, fltr);
	if (err < 0)
		goto err;

	err = ice_add_switch_fltr(vsi, fltr);
	if (err < 0)
		goto err;

	/* return the newly created filter */
	*__fltr = fltr;

	return 0;
err:
	kfree(fltr);
	return err;
}

/**
 * ice_find_tc_flower_fltr - Find the TC flower filter in the list
 * @pf: Pointer to PF
 * @cookie: filter specific cookie
 */
static struct ice_tc_flower_fltr *
ice_find_tc_flower_fltr(struct ice_pf *pf, unsigned long cookie)
{
	struct ice_tc_flower_fltr *fltr;

	hlist_for_each_entry(fltr, &pf->tc_flower_fltr_list, tc_flower_node)
		if (cookie == fltr->cookie)
			return fltr;

	return NULL;
}

/**
 * ice_add_cls_flower - add TC flower filters
 * @netdev: Pointer to filter device
 * @vsi: Pointer to VSI
 * @cls_flower: Pointer to flower offload structure
 */
int
ice_add_cls_flower(struct net_device *netdev, struct ice_vsi *vsi,
		   struct flow_cls_offload *cls_flower)
{
	struct netlink_ext_ack *extack = cls_flower->common.extack;
	struct net_device *vsi_netdev = vsi->netdev;
	struct ice_tc_flower_fltr *fltr;
	struct ice_pf *pf = vsi->back;
	int err;

	if (ice_is_reset_in_progress(pf->state))
		return -EBUSY;
	if (test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags))
		return -EINVAL;

	if (ice_is_port_repr_netdev(netdev))
		vsi_netdev = netdev;

	if (!(vsi_netdev->features & NETIF_F_HW_TC) &&
	    !test_bit(ICE_FLAG_CLS_FLOWER, pf->flags)) {
		/* Based on TC indirect notifications from kernel, all ice
		 * devices get an instance of rule from higher level device.
		 * Avoid triggering explicit error in this case.
		 */
		if (netdev == vsi_netdev)
			NL_SET_ERR_MSG_MOD(extack, "can't apply TC flower filters, turn ON hw-tc-offload and try again");
		return -EINVAL;
	}

	/* avoid duplicate entries, if exists - return error */
	fltr = ice_find_tc_flower_fltr(pf, cls_flower->cookie);
	if (fltr) {
		NL_SET_ERR_MSG_MOD(extack, "filter cookie already exists, ignoring");
		return -EEXIST;
	}

	/* prep and add TC-flower filter in HW */
	err = ice_add_tc_fltr(netdev, vsi, cls_flower, &fltr);
	if (err)
		return err;

	/* add filter into an ordered list */
	hlist_add_head(&fltr->tc_flower_node, &pf->tc_flower_fltr_list);
	return 0;
}

/**
 * ice_del_cls_flower - delete TC flower filters
 * @vsi: Pointer to VSI
 * @cls_flower: Pointer to struct flow_cls_offload
 */
int
ice_del_cls_flower(struct ice_vsi *vsi, struct flow_cls_offload *cls_flower)
{
	struct ice_tc_flower_fltr *fltr;
	struct ice_pf *pf = vsi->back;
	int err;

	/* find filter */
	fltr = ice_find_tc_flower_fltr(pf, cls_flower->cookie);
	if (!fltr) {
		if (!test_bit(ICE_FLAG_TC_MQPRIO, pf->flags) &&
		    hlist_empty(&pf->tc_flower_fltr_list))
			return 0;

		NL_SET_ERR_MSG_MOD(cls_flower->common.extack, "failed to delete TC flower filter because unable to find it");
		return -EINVAL;
	}

	fltr->extack = cls_flower->common.extack;
	/* delete filter from HW */
	err = ice_del_tc_fltr(vsi, fltr);
	if (err)
		return err;

	/* delete filter from an ordered list */
	hlist_del(&fltr->tc_flower_node);

	/* free the filter node */
	kfree(fltr);

	return 0;
}

/**
 * ice_replay_tc_fltrs - replay TC filters
 * @pf: pointer to PF struct
 */
void ice_replay_tc_fltrs(struct ice_pf *pf)
{
	struct ice_tc_flower_fltr *fltr;
	struct hlist_node *node;

	hlist_for_each_entry_safe(fltr, node,
				  &pf->tc_flower_fltr_list,
				  tc_flower_node) {
		fltr->extack = NULL;
		ice_add_switch_fltr(fltr->src_vsi, fltr);
	}
}