summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
blob: 8a5e3987a482c2986b1780d7cb5ce87b6a16c3b9 (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
// SPDX-License-Identifier: GPL-2.0
/* Marvell RVU Ethernet driver
 *
 * Copyright (C) 2021 Marvell.
 *
 */

#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/inetdevice.h>
#include <linux/rhashtable.h>
#include <linux/bitfield.h>
#include <net/flow_dissector.h>
#include <net/pkt_cls.h>
#include <net/tc_act/tc_gact.h>
#include <net/tc_act/tc_mirred.h>
#include <net/tc_act/tc_vlan.h>
#include <net/ipv6.h>

#include "cn10k.h"
#include "otx2_common.h"
#include "qos.h"

#define CN10K_MAX_BURST_MANTISSA	0x7FFFULL
#define CN10K_MAX_BURST_SIZE		8453888ULL

#define CN10K_TLX_BURST_MANTISSA	GENMASK_ULL(43, 29)
#define CN10K_TLX_BURST_EXPONENT	GENMASK_ULL(47, 44)

#define OTX2_UNSUPP_LSE_DEPTH		GENMASK(6, 4)

struct otx2_tc_flow_stats {
	u64 bytes;
	u64 pkts;
	u64 used;
};

struct otx2_tc_flow {
	struct list_head		list;
	unsigned long			cookie;
	struct rcu_head			rcu;
	struct otx2_tc_flow_stats	stats;
	spinlock_t			lock; /* lock for stats */
	u16				rq;
	u16				entry;
	u16				leaf_profile;
	bool				is_act_police;
	u32				prio;
	struct npc_install_flow_req	req;
};

static void otx2_get_egress_burst_cfg(struct otx2_nic *nic, u32 burst,
				      u32 *burst_exp, u32 *burst_mantissa)
{
	int max_burst, max_mantissa;
	unsigned int tmp;

	if (is_dev_otx2(nic->pdev)) {
		max_burst = MAX_BURST_SIZE;
		max_mantissa = MAX_BURST_MANTISSA;
	} else {
		max_burst = CN10K_MAX_BURST_SIZE;
		max_mantissa = CN10K_MAX_BURST_MANTISSA;
	}

	/* Burst is calculated as
	 * ((256 + BURST_MANTISSA) << (1 + BURST_EXPONENT)) / 256
	 * Max supported burst size is 130,816 bytes.
	 */
	burst = min_t(u32, burst, max_burst);
	if (burst) {
		*burst_exp = ilog2(burst) ? ilog2(burst) - 1 : 0;
		tmp = burst - rounddown_pow_of_two(burst);
		if (burst < max_mantissa)
			*burst_mantissa = tmp * 2;
		else
			*burst_mantissa = tmp / (1ULL << (*burst_exp - 7));
	} else {
		*burst_exp = MAX_BURST_EXPONENT;
		*burst_mantissa = max_mantissa;
	}
}

static void otx2_get_egress_rate_cfg(u64 maxrate, u32 *exp,
				     u32 *mantissa, u32 *div_exp)
{
	u64 tmp;

	/* Rate calculation by hardware
	 *
	 * PIR_ADD = ((256 + mantissa) << exp) / 256
	 * rate = (2 * PIR_ADD) / ( 1 << div_exp)
	 * The resultant rate is in Mbps.
	 */

	/* 2Mbps to 100Gbps can be expressed with div_exp = 0.
	 * Setting this to '0' will ease the calculation of
	 * exponent and mantissa.
	 */
	*div_exp = 0;

	if (maxrate) {
		*exp = ilog2(maxrate) ? ilog2(maxrate) - 1 : 0;
		tmp = maxrate - rounddown_pow_of_two(maxrate);
		if (maxrate < MAX_RATE_MANTISSA)
			*mantissa = tmp * 2;
		else
			*mantissa = tmp / (1ULL << (*exp - 7));
	} else {
		/* Instead of disabling rate limiting, set all values to max */
		*exp = MAX_RATE_EXPONENT;
		*mantissa = MAX_RATE_MANTISSA;
	}
}

u64 otx2_get_txschq_rate_regval(struct otx2_nic *nic,
				u64 maxrate, u32 burst)
{
	u32 burst_exp, burst_mantissa;
	u32 exp, mantissa, div_exp;
	u64 regval = 0;

	/* Get exponent and mantissa values from the desired rate */
	otx2_get_egress_burst_cfg(nic, burst, &burst_exp, &burst_mantissa);
	otx2_get_egress_rate_cfg(maxrate, &exp, &mantissa, &div_exp);

	if (is_dev_otx2(nic->pdev)) {
		regval = FIELD_PREP(TLX_BURST_EXPONENT, (u64)burst_exp) |
				FIELD_PREP(TLX_BURST_MANTISSA, (u64)burst_mantissa) |
				FIELD_PREP(TLX_RATE_DIVIDER_EXPONENT, div_exp) |
				FIELD_PREP(TLX_RATE_EXPONENT, exp) |
				FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0);
	} else {
		regval = FIELD_PREP(CN10K_TLX_BURST_EXPONENT, (u64)burst_exp) |
				FIELD_PREP(CN10K_TLX_BURST_MANTISSA, (u64)burst_mantissa) |
				FIELD_PREP(TLX_RATE_DIVIDER_EXPONENT, div_exp) |
				FIELD_PREP(TLX_RATE_EXPONENT, exp) |
				FIELD_PREP(TLX_RATE_MANTISSA, mantissa) | BIT_ULL(0);
	}

	return regval;
}

static int otx2_set_matchall_egress_rate(struct otx2_nic *nic,
					 u32 burst, u64 maxrate)
{
	struct otx2_hw *hw = &nic->hw;
	struct nix_txschq_config *req;
	int txschq, err;

	/* All SQs share the same TL4, so pick the first scheduler */
	txschq = hw->txschq_list[NIX_TXSCH_LVL_TL4][0];

	mutex_lock(&nic->mbox.lock);
	req = otx2_mbox_alloc_msg_nix_txschq_cfg(&nic->mbox);
	if (!req) {
		mutex_unlock(&nic->mbox.lock);
		return -ENOMEM;
	}

	req->lvl = NIX_TXSCH_LVL_TL4;
	req->num_regs = 1;
	req->reg[0] = NIX_AF_TL4X_PIR(txschq);
	req->regval[0] = otx2_get_txschq_rate_regval(nic, maxrate, burst);

	err = otx2_sync_mbox_msg(&nic->mbox);
	mutex_unlock(&nic->mbox.lock);
	return err;
}

static int otx2_tc_validate_flow(struct otx2_nic *nic,
				 struct flow_action *actions,
				 struct netlink_ext_ack *extack)
{
	if (nic->flags & OTX2_FLAG_INTF_DOWN) {
		NL_SET_ERR_MSG_MOD(extack, "Interface not initialized");
		return -EINVAL;
	}

	if (!flow_action_has_entries(actions)) {
		NL_SET_ERR_MSG_MOD(extack, "MATCHALL offload called with no action");
		return -EINVAL;
	}

	if (!flow_offload_has_one_action(actions)) {
		NL_SET_ERR_MSG_MOD(extack,
				   "Egress MATCHALL offload supports only 1 policing action");
		return -EINVAL;
	}
	return 0;
}

static int otx2_policer_validate(const struct flow_action *action,
				 const struct flow_action_entry *act,
				 struct netlink_ext_ack *extack)
{
	if (act->police.exceed.act_id != FLOW_ACTION_DROP) {
		NL_SET_ERR_MSG_MOD(extack,
				   "Offload not supported when exceed action is not drop");
		return -EOPNOTSUPP;
	}

	if (act->police.notexceed.act_id != FLOW_ACTION_PIPE &&
	    act->police.notexceed.act_id != FLOW_ACTION_ACCEPT) {
		NL_SET_ERR_MSG_MOD(extack,
				   "Offload not supported when conform action is not pipe or ok");
		return -EOPNOTSUPP;
	}

	if (act->police.notexceed.act_id == FLOW_ACTION_ACCEPT &&
	    !flow_action_is_last_entry(action, act)) {
		NL_SET_ERR_MSG_MOD(extack,
				   "Offload not supported when conform action is ok, but action is not last");
		return -EOPNOTSUPP;
	}

	if (act->police.peakrate_bytes_ps ||
	    act->police.avrate || act->police.overhead) {
		NL_SET_ERR_MSG_MOD(extack,
				   "Offload not supported when peakrate/avrate/overhead is configured");
		return -EOPNOTSUPP;
	}

	return 0;
}

static int otx2_tc_egress_matchall_install(struct otx2_nic *nic,
					   struct tc_cls_matchall_offload *cls)
{
	struct netlink_ext_ack *extack = cls->common.extack;
	struct flow_action *actions = &cls->rule->action;
	struct flow_action_entry *entry;
	int err;

	err = otx2_tc_validate_flow(nic, actions, extack);
	if (err)
		return err;

	if (nic->flags & OTX2_FLAG_TC_MATCHALL_EGRESS_ENABLED) {
		NL_SET_ERR_MSG_MOD(extack,
				   "Only one Egress MATCHALL ratelimiter can be offloaded");
		return -ENOMEM;
	}

	entry = &cls->rule->action.entries[0];
	switch (entry->id) {
	case FLOW_ACTION_POLICE:
		err = otx2_policer_validate(&cls->rule->action, entry, extack);
		if (err)
			return err;

		if (entry->police.rate_pkt_ps) {
			NL_SET_ERR_MSG_MOD(extack, "QoS offload not support packets per second");
			return -EOPNOTSUPP;
		}
		err = otx2_set_matchall_egress_rate(nic, entry->police.burst,
						    otx2_convert_rate(entry->police.rate_bytes_ps));
		if (err)
			return err;
		nic->flags |= OTX2_FLAG_TC_MATCHALL_EGRESS_ENABLED;
		break;
	default:
		NL_SET_ERR_MSG_MOD(extack,
				   "Only police action is supported with Egress MATCHALL offload");
		return -EOPNOTSUPP;
	}

	return 0;
}

static int otx2_tc_egress_matchall_delete(struct otx2_nic *nic,
					  struct tc_cls_matchall_offload *cls)
{
	struct netlink_ext_ack *extack = cls->common.extack;
	int err;

	if (nic->flags & OTX2_FLAG_INTF_DOWN) {
		NL_SET_ERR_MSG_MOD(extack, "Interface not initialized");
		return -EINVAL;
	}

	err = otx2_set_matchall_egress_rate(nic, 0, 0);
	nic->flags &= ~OTX2_FLAG_TC_MATCHALL_EGRESS_ENABLED;
	return err;
}

static int otx2_tc_act_set_police(struct otx2_nic *nic,
				  struct otx2_tc_flow *node,
				  struct flow_cls_offload *f,
				  u64 rate, u32 burst, u32 mark,
				  struct npc_install_flow_req *req, bool pps)
{
	struct netlink_ext_ack *extack = f->common.extack;
	struct otx2_hw *hw = &nic->hw;
	int rq_idx, rc;

	rq_idx = find_first_zero_bit(&nic->rq_bmap, hw->rx_queues);
	if (rq_idx >= hw->rx_queues) {
		NL_SET_ERR_MSG_MOD(extack, "Police action rules exceeded");
		return -EINVAL;
	}

	mutex_lock(&nic->mbox.lock);

	rc = cn10k_alloc_leaf_profile(nic, &node->leaf_profile);
	if (rc) {
		mutex_unlock(&nic->mbox.lock);
		return rc;
	}

	rc = cn10k_set_ipolicer_rate(nic, node->leaf_profile, burst, rate, pps);
	if (rc)
		goto free_leaf;

	rc = cn10k_map_unmap_rq_policer(nic, rq_idx, node->leaf_profile, true);
	if (rc)
		goto free_leaf;

	mutex_unlock(&nic->mbox.lock);

	req->match_id = mark & 0xFFFFULL;
	req->index = rq_idx;
	req->op = NIX_RX_ACTIONOP_UCAST;
	set_bit(rq_idx, &nic->rq_bmap);
	node->is_act_police = true;
	node->rq = rq_idx;

	return 0;

free_leaf:
	if (cn10k_free_leaf_profile(nic, node->leaf_profile))
		netdev_err(nic->netdev,
			   "Unable to free leaf bandwidth profile(%d)\n",
			   node->leaf_profile);
	mutex_unlock(&nic->mbox.lock);
	return rc;
}

static int otx2_tc_parse_actions(struct otx2_nic *nic,
				 struct flow_action *flow_action,
				 struct npc_install_flow_req *req,
				 struct flow_cls_offload *f,
				 struct otx2_tc_flow *node)
{
	struct netlink_ext_ack *extack = f->common.extack;
	struct flow_action_entry *act;
	struct net_device *target;
	struct otx2_nic *priv;
	u32 burst, mark = 0;
	u8 nr_police = 0;
	bool pps = false;
	u64 rate;
	int err;
	int i;

	if (!flow_action_has_entries(flow_action)) {
		NL_SET_ERR_MSG_MOD(extack, "no tc actions specified");
		return -EINVAL;
	}

	flow_action_for_each(i, act, flow_action) {
		switch (act->id) {
		case FLOW_ACTION_DROP:
			req->op = NIX_RX_ACTIONOP_DROP;
			return 0;
		case FLOW_ACTION_ACCEPT:
			req->op = NIX_RX_ACTION_DEFAULT;
			return 0;
		case FLOW_ACTION_REDIRECT_INGRESS:
			target = act->dev;
			priv = netdev_priv(target);
			/* npc_install_flow_req doesn't support passing a target pcifunc */
			if (rvu_get_pf(nic->pcifunc) != rvu_get_pf(priv->pcifunc)) {
				NL_SET_ERR_MSG_MOD(extack,
						   "can't redirect to other pf/vf");
				return -EOPNOTSUPP;
			}
			req->vf = priv->pcifunc & RVU_PFVF_FUNC_MASK;

			/* if op is already set; avoid overwriting the same */
			if (!req->op)
				req->op = NIX_RX_ACTION_DEFAULT;
			break;

		case FLOW_ACTION_VLAN_POP:
			req->vtag0_valid = true;
			/* use RX_VTAG_TYPE7 which is initialized to strip vlan tag */
			req->vtag0_type = NIX_AF_LFX_RX_VTAG_TYPE7;
			break;
		case FLOW_ACTION_POLICE:
			/* Ingress ratelimiting is not supported on OcteonTx2 */
			if (is_dev_otx2(nic->pdev)) {
				NL_SET_ERR_MSG_MOD(extack,
					"Ingress policing not supported on this platform");
				return -EOPNOTSUPP;
			}

			err = otx2_policer_validate(flow_action, act, extack);
			if (err)
				return err;

			if (act->police.rate_bytes_ps > 0) {
				rate = act->police.rate_bytes_ps * 8;
				burst = act->police.burst;
			} else if (act->police.rate_pkt_ps > 0) {
				/* The algorithm used to calculate rate
				 * mantissa, exponent values for a given token
				 * rate (token can be byte or packet) requires
				 * token rate to be mutiplied by 8.
				 */
				rate = act->police.rate_pkt_ps * 8;
				burst = act->police.burst_pkt;
				pps = true;
			}
			nr_police++;
			break;
		case FLOW_ACTION_MARK:
			mark = act->mark;
			break;

		case FLOW_ACTION_RX_QUEUE_MAPPING:
			req->op = NIX_RX_ACTIONOP_UCAST;
			req->index = act->rx_queue;
			break;

		default:
			return -EOPNOTSUPP;
		}
	}

	if (nr_police > 1) {
		NL_SET_ERR_MSG_MOD(extack,
				   "rate limit police offload requires a single action");
		return -EOPNOTSUPP;
	}

	if (nr_police)
		return otx2_tc_act_set_police(nic, node, f, rate, burst,
					      mark, req, pps);

	return 0;
}

static int otx2_tc_process_vlan(struct otx2_nic *nic, struct flow_msg *flow_spec,
				struct flow_msg *flow_mask, struct flow_rule *rule,
				struct npc_install_flow_req *req, bool is_inner)
{
	struct flow_match_vlan match;
	u16 vlan_tci, vlan_tci_mask;

	if (is_inner)
		flow_rule_match_cvlan(rule, &match);
	else
		flow_rule_match_vlan(rule, &match);

	if (!eth_type_vlan(match.key->vlan_tpid)) {
		netdev_err(nic->netdev, "vlan tpid 0x%x not supported\n",
			   ntohs(match.key->vlan_tpid));
		return -EOPNOTSUPP;
	}

	if (!match.mask->vlan_id) {
		struct flow_action_entry *act;
		int i;

		flow_action_for_each(i, act, &rule->action) {
			if (act->id == FLOW_ACTION_DROP) {
				netdev_err(nic->netdev,
					   "vlan tpid 0x%x with vlan_id %d is not supported for DROP rule.\n",
					   ntohs(match.key->vlan_tpid), match.key->vlan_id);
				return -EOPNOTSUPP;
			}
		}
	}

	if (match.mask->vlan_id ||
	    match.mask->vlan_dei ||
	    match.mask->vlan_priority) {
		vlan_tci = match.key->vlan_id |
			   match.key->vlan_dei << 12 |
			   match.key->vlan_priority << 13;

		vlan_tci_mask = match.mask->vlan_id |
				match.mask->vlan_dei << 12 |
				match.mask->vlan_priority << 13;
		if (is_inner) {
			flow_spec->vlan_itci = htons(vlan_tci);
			flow_mask->vlan_itci = htons(vlan_tci_mask);
			req->features |= BIT_ULL(NPC_INNER_VID);
		} else {
			flow_spec->vlan_tci = htons(vlan_tci);
			flow_mask->vlan_tci = htons(vlan_tci_mask);
			req->features |= BIT_ULL(NPC_OUTER_VID);
		}
	}

	return 0;
}

static int otx2_tc_prepare_flow(struct otx2_nic *nic, struct otx2_tc_flow *node,
				struct flow_cls_offload *f,
				struct npc_install_flow_req *req)
{
	struct netlink_ext_ack *extack = f->common.extack;
	struct flow_msg *flow_spec = &req->packet;
	struct flow_msg *flow_mask = &req->mask;
	struct flow_dissector *dissector;
	struct flow_rule *rule;
	u8 ip_proto = 0;

	rule = flow_cls_offload_flow_rule(f);
	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(FLOW_DISSECTOR_KEY_CVLAN) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_PORTS) |
	      BIT(FLOW_DISSECTOR_KEY_IPSEC) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_MPLS) |
	      BIT_ULL(FLOW_DISSECTOR_KEY_IP))))  {
		netdev_info(nic->netdev, "unsupported flow used key 0x%llx",
			    dissector->used_keys);
		return -EOPNOTSUPP;
	}

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

		flow_rule_match_basic(rule, &match);

		/* All EtherTypes can be matched, no hw limitation */
		flow_spec->etype = match.key->n_proto;
		flow_mask->etype = match.mask->n_proto;
		req->features |= BIT_ULL(NPC_ETYPE);

		if (match.mask->ip_proto &&
		    (match.key->ip_proto != IPPROTO_TCP &&
		     match.key->ip_proto != IPPROTO_UDP &&
		     match.key->ip_proto != IPPROTO_SCTP &&
		     match.key->ip_proto != IPPROTO_ICMP &&
		     match.key->ip_proto != IPPROTO_ESP &&
		     match.key->ip_proto != IPPROTO_AH &&
		     match.key->ip_proto != IPPROTO_ICMPV6)) {
			netdev_info(nic->netdev,
				    "ip_proto=0x%x not supported\n",
				    match.key->ip_proto);
			return -EOPNOTSUPP;
		}
		if (match.mask->ip_proto)
			ip_proto = match.key->ip_proto;

		if (ip_proto == IPPROTO_UDP)
			req->features |= BIT_ULL(NPC_IPPROTO_UDP);
		else if (ip_proto == IPPROTO_TCP)
			req->features |= BIT_ULL(NPC_IPPROTO_TCP);
		else if (ip_proto == IPPROTO_SCTP)
			req->features |= BIT_ULL(NPC_IPPROTO_SCTP);
		else if (ip_proto == IPPROTO_ICMP)
			req->features |= BIT_ULL(NPC_IPPROTO_ICMP);
		else if (ip_proto == IPPROTO_ICMPV6)
			req->features |= BIT_ULL(NPC_IPPROTO_ICMP6);
		else if (ip_proto == IPPROTO_ESP)
			req->features |= BIT_ULL(NPC_IPPROTO_ESP);
		else if (ip_proto == IPPROTO_AH)
			req->features |= BIT_ULL(NPC_IPPROTO_AH);
	}

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

		flow_rule_match_control(rule, &match);
		if (match.mask->flags & FLOW_DIS_FIRST_FRAG) {
			NL_SET_ERR_MSG_MOD(extack, "HW doesn't support frag first/later");
			return -EOPNOTSUPP;
		}

		if (match.mask->flags & FLOW_DIS_IS_FRAGMENT) {
			if (ntohs(flow_spec->etype) == ETH_P_IP) {
				flow_spec->ip_flag = IPV4_FLAG_MORE;
				flow_mask->ip_flag = IPV4_FLAG_MORE;
				req->features |= BIT_ULL(NPC_IPFRAG_IPV4);
			} else if (ntohs(flow_spec->etype) == ETH_P_IPV6) {
				flow_spec->next_header = IPPROTO_FRAGMENT;
				flow_mask->next_header = 0xff;
				req->features |= BIT_ULL(NPC_IPFRAG_IPV6);
			} else {
				NL_SET_ERR_MSG_MOD(extack, "flow-type should be either IPv4 and IPv6");
				return -EOPNOTSUPP;
			}
		}
	}

	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.mask->src)) {
			NL_SET_ERR_MSG_MOD(extack, "src mac match not supported");
			return -EOPNOTSUPP;
		}

		if (!is_zero_ether_addr(match.mask->dst)) {
			ether_addr_copy(flow_spec->dmac, (u8 *)&match.key->dst);
			ether_addr_copy(flow_mask->dmac,
					(u8 *)&match.mask->dst);
			req->features |= BIT_ULL(NPC_DMAC);
		}
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPSEC)) {
		struct flow_match_ipsec match;

		flow_rule_match_ipsec(rule, &match);
		if (!match.mask->spi) {
			NL_SET_ERR_MSG_MOD(extack, "spi index not specified");
			return -EOPNOTSUPP;
		}
		if (ip_proto != IPPROTO_ESP &&
		    ip_proto != IPPROTO_AH) {
			NL_SET_ERR_MSG_MOD(extack,
					   "SPI index is valid only for ESP/AH proto");
			return -EOPNOTSUPP;
		}

		flow_spec->spi = match.key->spi;
		flow_mask->spi = match.mask->spi;
		req->features |= BIT_ULL(NPC_IPSEC_SPI);
	}

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

		flow_rule_match_ip(rule, &match);
		if ((ntohs(flow_spec->etype) != ETH_P_IP) &&
		    match.mask->tos) {
			NL_SET_ERR_MSG_MOD(extack, "tos not supported");
			return -EOPNOTSUPP;
		}
		if (match.mask->ttl) {
			NL_SET_ERR_MSG_MOD(extack, "ttl not supported");
			return -EOPNOTSUPP;
		}
		flow_spec->tos = match.key->tos;
		flow_mask->tos = match.mask->tos;
		req->features |= BIT_ULL(NPC_TOS);
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
		int ret;

		ret = otx2_tc_process_vlan(nic, flow_spec, flow_mask, rule, req, false);
		if (ret)
			return ret;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CVLAN)) {
		int ret;

		ret = otx2_tc_process_vlan(nic, flow_spec, flow_mask, rule, req, true);
		if (ret)
			return ret;
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV4_ADDRS)) {
		struct flow_match_ipv4_addrs match;

		flow_rule_match_ipv4_addrs(rule, &match);

		flow_spec->ip4dst = match.key->dst;
		flow_mask->ip4dst = match.mask->dst;
		req->features |= BIT_ULL(NPC_DIP_IPV4);

		flow_spec->ip4src = match.key->src;
		flow_mask->ip4src = match.mask->src;
		req->features |= BIT_ULL(NPC_SIP_IPV4);
	} else if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV6_ADDRS)) {
		struct flow_match_ipv6_addrs match;

		flow_rule_match_ipv6_addrs(rule, &match);

		if (ipv6_addr_loopback(&match.key->dst) ||
		    ipv6_addr_loopback(&match.key->src)) {
			NL_SET_ERR_MSG_MOD(extack,
					   "Flow matching IPv6 loopback addr not supported");
			return -EOPNOTSUPP;
		}

		if (!ipv6_addr_any(&match.mask->dst)) {
			memcpy(&flow_spec->ip6dst,
			       (struct in6_addr *)&match.key->dst,
			       sizeof(flow_spec->ip6dst));
			memcpy(&flow_mask->ip6dst,
			       (struct in6_addr *)&match.mask->dst,
			       sizeof(flow_spec->ip6dst));
			req->features |= BIT_ULL(NPC_DIP_IPV6);
		}

		if (!ipv6_addr_any(&match.mask->src)) {
			memcpy(&flow_spec->ip6src,
			       (struct in6_addr *)&match.key->src,
			       sizeof(flow_spec->ip6src));
			memcpy(&flow_mask->ip6src,
			       (struct in6_addr *)&match.mask->src,
			       sizeof(flow_spec->ip6src));
			req->features |= BIT_ULL(NPC_SIP_IPV6);
		}
	}

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

		flow_rule_match_ports(rule, &match);

		flow_spec->dport = match.key->dst;
		flow_mask->dport = match.mask->dst;

		if (flow_mask->dport) {
			if (ip_proto == IPPROTO_UDP)
				req->features |= BIT_ULL(NPC_DPORT_UDP);
			else if (ip_proto == IPPROTO_TCP)
				req->features |= BIT_ULL(NPC_DPORT_TCP);
			else if (ip_proto == IPPROTO_SCTP)
				req->features |= BIT_ULL(NPC_DPORT_SCTP);
		}

		flow_spec->sport = match.key->src;
		flow_mask->sport = match.mask->src;

		if (flow_mask->sport) {
			if (ip_proto == IPPROTO_UDP)
				req->features |= BIT_ULL(NPC_SPORT_UDP);
			else if (ip_proto == IPPROTO_TCP)
				req->features |= BIT_ULL(NPC_SPORT_TCP);
			else if (ip_proto == IPPROTO_SCTP)
				req->features |= BIT_ULL(NPC_SPORT_SCTP);
		}
	}

	if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_MPLS)) {
		struct flow_match_mpls match;
		u8 bit;

		flow_rule_match_mpls(rule, &match);

		if (match.mask->used_lses & OTX2_UNSUPP_LSE_DEPTH) {
			NL_SET_ERR_MSG_MOD(extack,
					   "unsupported LSE depth for MPLS match offload");
			return -EOPNOTSUPP;
		}

		for_each_set_bit(bit, (unsigned long *)&match.mask->used_lses,
				 FLOW_DIS_MPLS_MAX)  {
			/* check if any of the fields LABEL,TC,BOS are set */
			if (*((u32 *)&match.mask->ls[bit]) &
			    OTX2_FLOWER_MASK_MPLS_NON_TTL) {
				/* Hardware will capture 4 byte MPLS header into
				 * two fields NPC_MPLSX_LBTCBOS and NPC_MPLSX_TTL.
				 * Derive the associated NPC key based on header
				 * index and offset.
				 */

				req->features |= BIT_ULL(NPC_MPLS1_LBTCBOS +
							 2 * bit);
				flow_spec->mpls_lse[bit] =
					FIELD_PREP(OTX2_FLOWER_MASK_MPLS_LB,
						   match.key->ls[bit].mpls_label) |
					FIELD_PREP(OTX2_FLOWER_MASK_MPLS_TC,
						   match.key->ls[bit].mpls_tc) |
					FIELD_PREP(OTX2_FLOWER_MASK_MPLS_BOS,
						   match.key->ls[bit].mpls_bos);

				flow_mask->mpls_lse[bit] =
					FIELD_PREP(OTX2_FLOWER_MASK_MPLS_LB,
						   match.mask->ls[bit].mpls_label) |
					FIELD_PREP(OTX2_FLOWER_MASK_MPLS_TC,
						   match.mask->ls[bit].mpls_tc) |
					FIELD_PREP(OTX2_FLOWER_MASK_MPLS_BOS,
						   match.mask->ls[bit].mpls_bos);
			}

			if (match.mask->ls[bit].mpls_ttl) {
				req->features |= BIT_ULL(NPC_MPLS1_TTL +
							 2 * bit);
				flow_spec->mpls_lse[bit] |=
					FIELD_PREP(OTX2_FLOWER_MASK_MPLS_TTL,
						   match.key->ls[bit].mpls_ttl);
				flow_mask->mpls_lse[bit] |=
					FIELD_PREP(OTX2_FLOWER_MASK_MPLS_TTL,
						   match.mask->ls[bit].mpls_ttl);
			}
		}
	}

	return otx2_tc_parse_actions(nic, &rule->action, req, f, node);
}

static void otx2_destroy_tc_flow_list(struct otx2_nic *pfvf)
{
	struct otx2_flow_config *flow_cfg = pfvf->flow_cfg;
	struct otx2_tc_flow *iter, *tmp;

	if (!(pfvf->flags & OTX2_FLAG_MCAM_ENTRIES_ALLOC))
		return;

	list_for_each_entry_safe(iter, tmp, &flow_cfg->flow_list_tc, list) {
		list_del(&iter->list);
		kfree(iter);
		flow_cfg->nr_flows--;
	}
}

static struct otx2_tc_flow *otx2_tc_get_entry_by_cookie(struct otx2_flow_config *flow_cfg,
							unsigned long cookie)
{
	struct otx2_tc_flow *tmp;

	list_for_each_entry(tmp, &flow_cfg->flow_list_tc, list) {
		if (tmp->cookie == cookie)
			return tmp;
	}

	return NULL;
}

static struct otx2_tc_flow *otx2_tc_get_entry_by_index(struct otx2_flow_config *flow_cfg,
						       int index)
{
	struct otx2_tc_flow *tmp;
	int i = 0;

	list_for_each_entry(tmp, &flow_cfg->flow_list_tc, list) {
		if (i == index)
			return tmp;
		i++;
	}

	return NULL;
}

static void otx2_tc_del_from_flow_list(struct otx2_flow_config *flow_cfg,
				       struct otx2_tc_flow *node)
{
	struct list_head *pos, *n;
	struct otx2_tc_flow *tmp;

	list_for_each_safe(pos, n, &flow_cfg->flow_list_tc) {
		tmp = list_entry(pos, struct otx2_tc_flow, list);
		if (node == tmp) {
			list_del(&node->list);
			return;
		}
	}
}

static int otx2_tc_add_to_flow_list(struct otx2_flow_config *flow_cfg,
				    struct otx2_tc_flow *node)
{
	struct list_head *pos, *n;
	struct otx2_tc_flow *tmp;
	int index = 0;

	/* If the flow list is empty then add the new node */
	if (list_empty(&flow_cfg->flow_list_tc)) {
		list_add(&node->list, &flow_cfg->flow_list_tc);
		return index;
	}

	list_for_each_safe(pos, n, &flow_cfg->flow_list_tc) {
		tmp = list_entry(pos, struct otx2_tc_flow, list);
		if (node->prio < tmp->prio)
			break;
		index++;
	}

	list_add(&node->list, pos->prev);
	return index;
}

static int otx2_add_mcam_flow_entry(struct otx2_nic *nic, struct npc_install_flow_req *req)
{
	struct npc_install_flow_req *tmp_req;
	int err;

	mutex_lock(&nic->mbox.lock);
	tmp_req = otx2_mbox_alloc_msg_npc_install_flow(&nic->mbox);
	if (!tmp_req) {
		mutex_unlock(&nic->mbox.lock);
		return -ENOMEM;
	}

	memcpy(tmp_req, req, sizeof(struct npc_install_flow_req));
	/* Send message to AF */
	err = otx2_sync_mbox_msg(&nic->mbox);
	if (err) {
		netdev_err(nic->netdev, "Failed to install MCAM flow entry %d\n",
			   req->entry);
		mutex_unlock(&nic->mbox.lock);
		return -EFAULT;
	}

	mutex_unlock(&nic->mbox.lock);
	return 0;
}

static int otx2_del_mcam_flow_entry(struct otx2_nic *nic, u16 entry, u16 *cntr_val)
{
	struct npc_delete_flow_rsp *rsp;
	struct npc_delete_flow_req *req;
	int err;

	mutex_lock(&nic->mbox.lock);
	req = otx2_mbox_alloc_msg_npc_delete_flow(&nic->mbox);
	if (!req) {
		mutex_unlock(&nic->mbox.lock);
		return -ENOMEM;
	}

	req->entry = entry;

	/* Send message to AF */
	err = otx2_sync_mbox_msg(&nic->mbox);
	if (err) {
		netdev_err(nic->netdev, "Failed to delete MCAM flow entry %d\n",
			   entry);
		mutex_unlock(&nic->mbox.lock);
		return -EFAULT;
	}

	if (cntr_val) {
		rsp = (struct npc_delete_flow_rsp *)otx2_mbox_get_rsp(&nic->mbox.mbox,
								      0, &req->hdr);
		if (IS_ERR(rsp)) {
			netdev_err(nic->netdev, "Failed to get MCAM delete response for entry %d\n",
				   entry);
			mutex_unlock(&nic->mbox.lock);
			return -EFAULT;
		}

		*cntr_val = rsp->cntr_val;
	}

	mutex_unlock(&nic->mbox.lock);
	return 0;
}

static int otx2_tc_update_mcam_table_del_req(struct otx2_nic *nic,
					     struct otx2_flow_config *flow_cfg,
					     struct otx2_tc_flow *node)
{
	struct list_head *pos, *n;
	struct otx2_tc_flow *tmp;
	int i = 0, index = 0;
	u16 cntr_val = 0;

	/* Find and delete the entry from the list and re-install
	 * all the entries from beginning to the index of the
	 * deleted entry to higher mcam indexes.
	 */
	list_for_each_safe(pos, n, &flow_cfg->flow_list_tc) {
		tmp = list_entry(pos, struct otx2_tc_flow, list);
		if (node == tmp) {
			list_del(&tmp->list);
			break;
		}

		otx2_del_mcam_flow_entry(nic, tmp->entry, &cntr_val);
		tmp->entry++;
		tmp->req.entry = tmp->entry;
		tmp->req.cntr_val = cntr_val;
		index++;
	}

	list_for_each_safe(pos, n, &flow_cfg->flow_list_tc) {
		if (i == index)
			break;

		tmp = list_entry(pos, struct otx2_tc_flow, list);
		otx2_add_mcam_flow_entry(nic, &tmp->req);
		i++;
	}

	return 0;
}

static int otx2_tc_update_mcam_table_add_req(struct otx2_nic *nic,
					     struct otx2_flow_config *flow_cfg,
					     struct otx2_tc_flow *node)
{
	int mcam_idx = flow_cfg->max_flows - flow_cfg->nr_flows - 1;
	struct otx2_tc_flow *tmp;
	int list_idx, i;
	u16 cntr_val = 0;

	/* Find the index of the entry(list_idx) whose priority
	 * is greater than the new entry and re-install all
	 * the entries from beginning to list_idx to higher
	 * mcam indexes.
	 */
	list_idx = otx2_tc_add_to_flow_list(flow_cfg, node);
	for (i = 0; i < list_idx; i++) {
		tmp = otx2_tc_get_entry_by_index(flow_cfg, i);
		if (!tmp)
			return -ENOMEM;

		otx2_del_mcam_flow_entry(nic, tmp->entry, &cntr_val);
		tmp->entry = flow_cfg->flow_ent[mcam_idx];
		tmp->req.entry = tmp->entry;
		tmp->req.cntr_val = cntr_val;
		otx2_add_mcam_flow_entry(nic, &tmp->req);
		mcam_idx++;
	}

	return mcam_idx;
}

static int otx2_tc_update_mcam_table(struct otx2_nic *nic,
				     struct otx2_flow_config *flow_cfg,
				     struct otx2_tc_flow *node,
				     bool add_req)
{
	if (add_req)
		return otx2_tc_update_mcam_table_add_req(nic, flow_cfg, node);

	return otx2_tc_update_mcam_table_del_req(nic, flow_cfg, node);
}

static int otx2_tc_del_flow(struct otx2_nic *nic,
			    struct flow_cls_offload *tc_flow_cmd)
{
	struct otx2_flow_config *flow_cfg = nic->flow_cfg;
	struct otx2_tc_flow *flow_node;
	int err;

	flow_node = otx2_tc_get_entry_by_cookie(flow_cfg, tc_flow_cmd->cookie);
	if (!flow_node) {
		netdev_err(nic->netdev, "tc flow not found for cookie 0x%lx\n",
			   tc_flow_cmd->cookie);
		return -EINVAL;
	}

	if (flow_node->is_act_police) {
		mutex_lock(&nic->mbox.lock);

		err = cn10k_map_unmap_rq_policer(nic, flow_node->rq,
						 flow_node->leaf_profile, false);
		if (err)
			netdev_err(nic->netdev,
				   "Unmapping RQ %d & profile %d failed\n",
				   flow_node->rq, flow_node->leaf_profile);

		err = cn10k_free_leaf_profile(nic, flow_node->leaf_profile);
		if (err)
			netdev_err(nic->netdev,
				   "Unable to free leaf bandwidth profile(%d)\n",
				   flow_node->leaf_profile);

		__clear_bit(flow_node->rq, &nic->rq_bmap);

		mutex_unlock(&nic->mbox.lock);
	}

	otx2_del_mcam_flow_entry(nic, flow_node->entry, NULL);
	otx2_tc_update_mcam_table(nic, flow_cfg, flow_node, false);
	kfree_rcu(flow_node, rcu);
	flow_cfg->nr_flows--;
	return 0;
}

static int otx2_tc_add_flow(struct otx2_nic *nic,
			    struct flow_cls_offload *tc_flow_cmd)
{
	struct netlink_ext_ack *extack = tc_flow_cmd->common.extack;
	struct otx2_flow_config *flow_cfg = nic->flow_cfg;
	struct otx2_tc_flow *new_node, *old_node;
	struct npc_install_flow_req *req, dummy;
	int rc, err, mcam_idx;

	if (!(nic->flags & OTX2_FLAG_TC_FLOWER_SUPPORT))
		return -ENOMEM;

	if (flow_cfg->nr_flows == flow_cfg->max_flows) {
		NL_SET_ERR_MSG_MOD(extack,
				   "Free MCAM entry not available to add the flow");
		return -ENOMEM;
	}

	/* allocate memory for the new flow and it's node */
	new_node = kzalloc(sizeof(*new_node), GFP_KERNEL);
	if (!new_node)
		return -ENOMEM;
	spin_lock_init(&new_node->lock);
	new_node->cookie = tc_flow_cmd->cookie;
	new_node->prio = tc_flow_cmd->common.prio;

	memset(&dummy, 0, sizeof(struct npc_install_flow_req));

	rc = otx2_tc_prepare_flow(nic, new_node, tc_flow_cmd, &dummy);
	if (rc) {
		kfree_rcu(new_node, rcu);
		return rc;
	}

	/* If a flow exists with the same cookie, delete it */
	old_node = otx2_tc_get_entry_by_cookie(flow_cfg, tc_flow_cmd->cookie);
	if (old_node)
		otx2_tc_del_flow(nic, tc_flow_cmd);

	mcam_idx = otx2_tc_update_mcam_table(nic, flow_cfg, new_node, true);
	mutex_lock(&nic->mbox.lock);
	req = otx2_mbox_alloc_msg_npc_install_flow(&nic->mbox);
	if (!req) {
		mutex_unlock(&nic->mbox.lock);
		rc = -ENOMEM;
		goto free_leaf;
	}

	memcpy(&dummy.hdr, &req->hdr, sizeof(struct mbox_msghdr));
	memcpy(req, &dummy, sizeof(struct npc_install_flow_req));
	req->channel = nic->hw.rx_chan_base;
	req->entry = flow_cfg->flow_ent[mcam_idx];
	req->intf = NIX_INTF_RX;
	req->set_cntr = 1;
	new_node->entry = req->entry;

	/* Send message to AF */
	rc = otx2_sync_mbox_msg(&nic->mbox);
	if (rc) {
		NL_SET_ERR_MSG_MOD(extack, "Failed to install MCAM flow entry");
		mutex_unlock(&nic->mbox.lock);
		goto free_leaf;
	}

	mutex_unlock(&nic->mbox.lock);
	memcpy(&new_node->req, req, sizeof(struct npc_install_flow_req));

	flow_cfg->nr_flows++;
	return 0;

free_leaf:
	otx2_tc_del_from_flow_list(flow_cfg, new_node);
	kfree_rcu(new_node, rcu);
	if (new_node->is_act_police) {
		mutex_lock(&nic->mbox.lock);

		err = cn10k_map_unmap_rq_policer(nic, new_node->rq,
						 new_node->leaf_profile, false);
		if (err)
			netdev_err(nic->netdev,
				   "Unmapping RQ %d & profile %d failed\n",
				   new_node->rq, new_node->leaf_profile);
		err = cn10k_free_leaf_profile(nic, new_node->leaf_profile);
		if (err)
			netdev_err(nic->netdev,
				   "Unable to free leaf bandwidth profile(%d)\n",
				   new_node->leaf_profile);

		__clear_bit(new_node->rq, &nic->rq_bmap);

		mutex_unlock(&nic->mbox.lock);
	}

	return rc;
}

static int otx2_tc_get_flow_stats(struct otx2_nic *nic,
				  struct flow_cls_offload *tc_flow_cmd)
{
	struct npc_mcam_get_stats_req *req;
	struct npc_mcam_get_stats_rsp *rsp;
	struct otx2_tc_flow_stats *stats;
	struct otx2_tc_flow *flow_node;
	int err;

	flow_node = otx2_tc_get_entry_by_cookie(nic->flow_cfg, tc_flow_cmd->cookie);
	if (!flow_node) {
		netdev_info(nic->netdev, "tc flow not found for cookie %lx",
			    tc_flow_cmd->cookie);
		return -EINVAL;
	}

	mutex_lock(&nic->mbox.lock);

	req = otx2_mbox_alloc_msg_npc_mcam_entry_stats(&nic->mbox);
	if (!req) {
		mutex_unlock(&nic->mbox.lock);
		return -ENOMEM;
	}

	req->entry = flow_node->entry;

	err = otx2_sync_mbox_msg(&nic->mbox);
	if (err) {
		netdev_err(nic->netdev, "Failed to get stats for MCAM flow entry %d\n",
			   req->entry);
		mutex_unlock(&nic->mbox.lock);
		return -EFAULT;
	}

	rsp = (struct npc_mcam_get_stats_rsp *)otx2_mbox_get_rsp
		(&nic->mbox.mbox, 0, &req->hdr);
	if (IS_ERR(rsp)) {
		mutex_unlock(&nic->mbox.lock);
		return PTR_ERR(rsp);
	}

	mutex_unlock(&nic->mbox.lock);

	if (!rsp->stat_ena)
		return -EINVAL;

	stats = &flow_node->stats;

	spin_lock(&flow_node->lock);
	flow_stats_update(&tc_flow_cmd->stats, 0x0, rsp->stat - stats->pkts, 0x0, 0x0,
			  FLOW_ACTION_HW_STATS_IMMEDIATE);
	stats->pkts = rsp->stat;
	spin_unlock(&flow_node->lock);

	return 0;
}

static int otx2_setup_tc_cls_flower(struct otx2_nic *nic,
				    struct flow_cls_offload *cls_flower)
{
	switch (cls_flower->command) {
	case FLOW_CLS_REPLACE:
		return otx2_tc_add_flow(nic, cls_flower);
	case FLOW_CLS_DESTROY:
		return otx2_tc_del_flow(nic, cls_flower);
	case FLOW_CLS_STATS:
		return otx2_tc_get_flow_stats(nic, cls_flower);
	default:
		return -EOPNOTSUPP;
	}
}

static int otx2_tc_ingress_matchall_install(struct otx2_nic *nic,
					    struct tc_cls_matchall_offload *cls)
{
	struct netlink_ext_ack *extack = cls->common.extack;
	struct flow_action *actions = &cls->rule->action;
	struct flow_action_entry *entry;
	u64 rate;
	int err;

	err = otx2_tc_validate_flow(nic, actions, extack);
	if (err)
		return err;

	if (nic->flags & OTX2_FLAG_TC_MATCHALL_INGRESS_ENABLED) {
		NL_SET_ERR_MSG_MOD(extack,
				   "Only one ingress MATCHALL ratelimitter can be offloaded");
		return -ENOMEM;
	}

	entry = &cls->rule->action.entries[0];
	switch (entry->id) {
	case FLOW_ACTION_POLICE:
		/* Ingress ratelimiting is not supported on OcteonTx2 */
		if (is_dev_otx2(nic->pdev)) {
			NL_SET_ERR_MSG_MOD(extack,
					   "Ingress policing not supported on this platform");
			return -EOPNOTSUPP;
		}

		err = cn10k_alloc_matchall_ipolicer(nic);
		if (err)
			return err;

		/* Convert to bits per second */
		rate = entry->police.rate_bytes_ps * 8;
		err = cn10k_set_matchall_ipolicer_rate(nic, entry->police.burst, rate);
		if (err)
			return err;
		nic->flags |= OTX2_FLAG_TC_MATCHALL_INGRESS_ENABLED;
		break;
	default:
		NL_SET_ERR_MSG_MOD(extack,
				   "Only police action supported with Ingress MATCHALL offload");
		return -EOPNOTSUPP;
	}

	return 0;
}

static int otx2_tc_ingress_matchall_delete(struct otx2_nic *nic,
					   struct tc_cls_matchall_offload *cls)
{
	struct netlink_ext_ack *extack = cls->common.extack;
	int err;

	if (nic->flags & OTX2_FLAG_INTF_DOWN) {
		NL_SET_ERR_MSG_MOD(extack, "Interface not initialized");
		return -EINVAL;
	}

	err = cn10k_free_matchall_ipolicer(nic);
	nic->flags &= ~OTX2_FLAG_TC_MATCHALL_INGRESS_ENABLED;
	return err;
}

static int otx2_setup_tc_ingress_matchall(struct otx2_nic *nic,
					  struct tc_cls_matchall_offload *cls_matchall)
{
	switch (cls_matchall->command) {
	case TC_CLSMATCHALL_REPLACE:
		return otx2_tc_ingress_matchall_install(nic, cls_matchall);
	case TC_CLSMATCHALL_DESTROY:
		return otx2_tc_ingress_matchall_delete(nic, cls_matchall);
	case TC_CLSMATCHALL_STATS:
	default:
		break;
	}

	return -EOPNOTSUPP;
}

static int otx2_setup_tc_block_ingress_cb(enum tc_setup_type type,
					  void *type_data, void *cb_priv)
{
	struct otx2_nic *nic = cb_priv;
	bool ntuple;

	if (!tc_cls_can_offload_and_chain0(nic->netdev, type_data))
		return -EOPNOTSUPP;

	ntuple = nic->netdev->features & NETIF_F_NTUPLE;
	switch (type) {
	case TC_SETUP_CLSFLOWER:
		if (ntuple) {
			netdev_warn(nic->netdev,
				    "Can't install TC flower offload rule when NTUPLE is active");
			return -EOPNOTSUPP;
		}

		return otx2_setup_tc_cls_flower(nic, type_data);
	case TC_SETUP_CLSMATCHALL:
		return otx2_setup_tc_ingress_matchall(nic, type_data);
	default:
		break;
	}

	return -EOPNOTSUPP;
}

static int otx2_setup_tc_egress_matchall(struct otx2_nic *nic,
					 struct tc_cls_matchall_offload *cls_matchall)
{
	switch (cls_matchall->command) {
	case TC_CLSMATCHALL_REPLACE:
		return otx2_tc_egress_matchall_install(nic, cls_matchall);
	case TC_CLSMATCHALL_DESTROY:
		return otx2_tc_egress_matchall_delete(nic, cls_matchall);
	case TC_CLSMATCHALL_STATS:
	default:
		break;
	}

	return -EOPNOTSUPP;
}

static int otx2_setup_tc_block_egress_cb(enum tc_setup_type type,
					 void *type_data, void *cb_priv)
{
	struct otx2_nic *nic = cb_priv;

	if (!tc_cls_can_offload_and_chain0(nic->netdev, type_data))
		return -EOPNOTSUPP;

	switch (type) {
	case TC_SETUP_CLSMATCHALL:
		return otx2_setup_tc_egress_matchall(nic, type_data);
	default:
		break;
	}

	return -EOPNOTSUPP;
}

static LIST_HEAD(otx2_block_cb_list);

static int otx2_setup_tc_block(struct net_device *netdev,
			       struct flow_block_offload *f)
{
	struct otx2_nic *nic = netdev_priv(netdev);
	flow_setup_cb_t *cb;
	bool ingress;

	if (f->block_shared)
		return -EOPNOTSUPP;

	if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) {
		cb = otx2_setup_tc_block_ingress_cb;
		ingress = true;
	} else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) {
		cb = otx2_setup_tc_block_egress_cb;
		ingress = false;
	} else {
		return -EOPNOTSUPP;
	}

	return flow_block_cb_setup_simple(f, &otx2_block_cb_list, cb,
					  nic, nic, ingress);
}

int otx2_setup_tc(struct net_device *netdev, enum tc_setup_type type,
		  void *type_data)
{
	switch (type) {
	case TC_SETUP_BLOCK:
		return otx2_setup_tc_block(netdev, type_data);
	case TC_SETUP_QDISC_HTB:
		return otx2_setup_tc_htb(netdev, type_data);
	default:
		return -EOPNOTSUPP;
	}
}
EXPORT_SYMBOL(otx2_setup_tc);

int otx2_init_tc(struct otx2_nic *nic)
{
	/* Exclude receive queue 0 being used for police action */
	set_bit(0, &nic->rq_bmap);

	if (!nic->flow_cfg) {
		netdev_err(nic->netdev,
			   "Can't init TC, nic->flow_cfg is not setup\n");
		return -EINVAL;
	}

	return 0;
}
EXPORT_SYMBOL(otx2_init_tc);

void otx2_shutdown_tc(struct otx2_nic *nic)
{
	otx2_destroy_tc_flow_list(nic);
}
EXPORT_SYMBOL(otx2_shutdown_tc);