aboutsummaryrefslogtreecommitdiffstats
path: root/src/plugins/avf/avf_fdir_lib.c
blob: b16c09f974219d5e16fc4a21eade6cb2bbf4ffc2 (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
/*
 *------------------------------------------------------------------
 * Copyright (c) 2020 Intel and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *------------------------------------------------------------------
 */

#include <vppinfra/mem.h>
#include "avf_advanced_flow.h"

#define AVF_FDIR_IPV6_TC_OFFSET	  20
#define AVF_IPV6_TC_MASK	  (0xFF << AVF_FDIR_IPV6_TC_OFFSET)
#define AVF_FDIR_MAX_QREGION_SIZE 128

/*
 * Return the last (most-significant) bit set.
 */
static inline int
fls_u32 (u32 x)
{
  return (x == 0) ? 0 : 32 - count_leading_zeros (x);
}

static inline int
ether_addr_is_zero (const struct avf_ether_addr *ea)
{
  const u16 *w = (const u16 *) ea;

  return (w[0] | w[1] | w[2]) == 0;
}

int
avf_fdir_rcfg_create (struct avf_fdir_conf **rcfg, int tunnel_level, u16 vsi,
		      u16 nrxq)
{
  (*rcfg) = clib_mem_alloc (sizeof (**rcfg));
  if ((*rcfg) == NULL)
    {
      return -1;
    }

  clib_memset (*rcfg, 0, sizeof (**rcfg));

  (*rcfg)->add_fltr.rule_cfg.proto_hdrs.tunnel_level = tunnel_level;
  (*rcfg)->vsi = vsi;
  (*rcfg)->nb_rx_queues = nrxq;

  return 0;
}

int
avf_fdir_rcfg_destroy (struct avf_fdir_conf *rcfg)
{
  clib_mem_free (rcfg);

  return 0;
}

int
avf_fdir_rcfg_set_hdr (struct avf_fdir_conf *rcfg, int layer,
		       enum virtchnl_proto_hdr_type hdr)
{
  struct virtchnl_proto_hdrs *hdrs;

  hdrs = &rcfg->add_fltr.rule_cfg.proto_hdrs;
  if (layer >= VIRTCHNL_MAX_NUM_PROTO_HDRS)
    return -1;

  hdrs->proto_hdr[layer].type = hdr;

  return 0;
}

int
avf_fdir_rcfg_set_field (struct avf_fdir_conf *rcfg, int layer,
			 struct avf_flow_item *item,
			 struct avf_flow_error *error)
{
  const struct avf_ipv4_hdr *ipv4_spec, *ipv4_mask;
  const struct avf_ipv6_hdr *ipv6_spec, *ipv6_mask;
  const struct avf_udp_hdr *udp_spec, *udp_mask;
  const struct avf_tcp_hdr *tcp_spec, *tcp_mask;
  const struct avf_sctp_hdr *sctp_spec, *sctp_mask;
  const struct avf_gtp_hdr *gtp_spec, *gtp_mask;
  const struct avf_gtp_psc_hdr *gtp_psc_spec, *gtp_psc_mask;
  const struct avf_l2tpv3oip_hdr *l2tpv3oip_spec, *l2tpv3oip_mask;
  const struct avf_esp_hdr *esp_spec, *esp_mask;
  const struct avf_ah_hdr *ah_spec, *ah_mask;
  const struct avf_pfcp_hdr *pfcp_spec, *pfcp_mask;
  const struct avf_flow_eth_hdr *eth_spec, *eth_mask;

  struct virtchnl_proto_hdr *hdr;
  enum virtchnl_proto_hdr_type type;
  u16 ether_type;
  int ret = 0;

  u8 ipv6_addr_mask[16] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };

  hdr = &rcfg->add_fltr.rule_cfg.proto_hdrs.proto_hdr[layer];
  type = item->type;

  switch (type)
    {
    case VIRTCHNL_PROTO_HDR_ETH:
      eth_spec = item->spec;
      eth_mask = item->mask;

      hdr->type = VIRTCHNL_PROTO_HDR_ETH;

      if (eth_spec && eth_mask)
	{
	  if (!ether_addr_is_zero (&eth_mask->src) ||
	      !ether_addr_is_zero (&eth_mask->dst))
	    {
	      ret = avf_flow_error_set (error, AVF_FAILURE,
					AVF_FLOW_ERROR_TYPE_ITEM, item,
					"Invalid MAC_addr mask.");
	      return ret;
	    }

	  if (eth_mask->type)
	    {
	      if (eth_mask->type != 0xffff)
		{
		  ret = avf_flow_error_set (error, AVF_FAILURE,
					    AVF_FLOW_ERROR_TYPE_ITEM, item,
					    "Invalid type mask.");
		  return ret;
		}
	    }
	}

      if (eth_spec && eth_mask && eth_mask->type)
	{
	  ether_type = clib_net_to_host_u16 (eth_spec->type);
	  if (ether_type == AVF_ETHER_TYPE_IPV4 ||
	      ether_type == AVF_ETHER_TYPE_IPV6)
	    {
	      ret = avf_flow_error_set (error, AVF_FAILURE,
					AVF_FLOW_ERROR_TYPE_ITEM, item,
					"Unsupported ether_type.");
	      return ret;
	    }

	  rcfg->input_set |= AVF_INSET_ETHERTYPE;
	  VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, ETH, ETHERTYPE);

	  clib_memcpy (hdr->buffer, eth_spec, sizeof (*eth_spec));
	}
      break;

    case VIRTCHNL_PROTO_HDR_IPV4:
      ipv4_spec = item->spec;
      ipv4_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_IPV4;

      if (ipv4_spec && ipv4_mask)
	{
	  if (ipv4_mask->version_ihl || ipv4_mask->total_length ||
	      ipv4_mask->packet_id || ipv4_mask->fragment_offset ||
	      ipv4_mask->hdr_checksum)
	    {
	      ret = avf_flow_error_set (error, AVF_FAILURE,
					AVF_FLOW_ERROR_TYPE_ITEM, item,
					"Invalid IPv4 mask.");
	      return ret;
	    }

	  if (ipv4_mask->type_of_service == 0xff)
	    {
	      rcfg->input_set |= AVF_INSET_IPV4_TOS;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, IPV4, DSCP);
	    }

	  if (ipv4_mask->next_proto_id == 0xff)
	    {
	      rcfg->input_set |= AVF_INSET_IPV4_PROTO;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, IPV4, PROT);
	    }

	  if (ipv4_mask->time_to_live == 0xff)
	    {
	      rcfg->input_set |= AVF_INSET_IPV4_TTL;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, IPV4, TTL);
	    }

	  if (ipv4_mask->src_addr == 0xffffffff)
	    {
	      rcfg->input_set |= AVF_INSET_IPV4_SRC;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, IPV4, SRC);
	    }

	  if (ipv4_mask->dst_addr == 0xffffffff)
	    {
	      rcfg->input_set |= AVF_INSET_IPV4_DST;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, IPV4, DST);
	    }

	  clib_memcpy (hdr->buffer, ipv4_spec, sizeof (*ipv4_spec));
	}
      break;

    case VIRTCHNL_PROTO_HDR_IPV6:
      ipv6_spec = item->spec;
      ipv6_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_IPV6;

      if (ipv6_spec && ipv6_mask)
	{
	  if (ipv6_mask->payload_len)
	    {
	      ret = avf_flow_error_set (error, AVF_FAILURE,
					AVF_FLOW_ERROR_TYPE_ITEM, item,
					"Invalid IPv6 mask");
	      return ret;
	    }

	  if ((ipv6_mask->vtc_flow &
	       clib_host_to_net_u32 (AVF_IPV6_TC_MASK)) ==
	      (clib_host_to_net_u32 (AVF_IPV6_TC_MASK)))
	    {
	      rcfg->input_set |= AVF_INSET_IPV6_TC;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, IPV6, TC);
	    }

	  if (ipv6_mask->proto == 0xff)
	    {
	      rcfg->input_set |= AVF_INSET_IPV6_NEXT_HDR;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, IPV6, PROT);
	    }

	  if (ipv6_mask->hop_limits == 0xff)
	    {
	      rcfg->input_set |= AVF_INSET_IPV6_HOP_LIMIT;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, IPV6, HOP_LIMIT);
	    }

	  if (!clib_memcmp (ipv6_mask->src_addr, ipv6_addr_mask,
			    sizeof (ipv6_mask->src_addr)))
	    {
	      rcfg->input_set |= AVF_INSET_IPV6_SRC;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, IPV6, SRC);
	    }
	  if (!clib_memcmp (ipv6_mask->dst_addr, ipv6_addr_mask,
			    sizeof (ipv6_mask->dst_addr)))
	    {
	      rcfg->input_set |= AVF_INSET_IPV6_DST;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, IPV6, DST);

	      clib_memcpy (hdr->buffer, ipv6_spec, sizeof (*ipv6_spec));
	    }
	}

      break;

    case VIRTCHNL_PROTO_HDR_UDP:
      udp_spec = item->spec;
      udp_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_UDP;

      if (udp_spec && udp_mask)
	{
	  if (udp_mask->dgram_len || udp_mask->dgram_cksum)
	    {
	      ret = avf_flow_error_set (error, AVF_FAILURE,
					AVF_FLOW_ERROR_TYPE_ITEM, item,
					"Invalid UDP mask");
	      return ret;
	    };

	  if (udp_mask->src_port == 0xffff)
	    {
	      rcfg->input_set |= AVF_INSET_UDP_SRC_PORT;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, UDP, SRC_PORT);
	    }

	  if (udp_mask->dst_port == 0xffff)
	    {
	      rcfg->input_set |= AVF_INSET_UDP_DST_PORT;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, UDP, DST_PORT);
	    }

	  clib_memcpy (hdr->buffer, udp_spec, sizeof (*udp_spec));
	}
      break;

    case VIRTCHNL_PROTO_HDR_TCP:
      tcp_spec = item->spec;
      tcp_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_TCP;

      if (tcp_spec && tcp_mask)
	{
	  if (tcp_mask->sent_seq || tcp_mask->recv_ack || tcp_mask->data_off ||
	      tcp_mask->tcp_flags || tcp_mask->rx_win || tcp_mask->cksum ||
	      tcp_mask->tcp_urp)
	    {
	      ret = avf_flow_error_set (error, AVF_FAILURE,
					AVF_FLOW_ERROR_TYPE_ITEM, item,
					"Invalid TCP mask");
	      return ret;
	    }

	  if (tcp_mask->src_port == 0xffff)
	    {
	      rcfg->input_set |= AVF_INSET_TCP_SRC_PORT;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, TCP, SRC_PORT);
	    }

	  if (tcp_mask->dst_port == 0xffff)
	    {
	      rcfg->input_set |= AVF_INSET_TCP_DST_PORT;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, TCP, DST_PORT);
	    }

	  clib_memcpy (hdr->buffer, tcp_spec, sizeof (*tcp_spec));
	}

      break;

    case VIRTCHNL_PROTO_HDR_SCTP:
      sctp_spec = item->spec;
      sctp_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_SCTP;

      if (sctp_spec && sctp_mask)
	{
	  if (sctp_mask->cksum)
	    {
	      ret = avf_flow_error_set (error, AVF_FAILURE,
					AVF_FLOW_ERROR_TYPE_ITEM, item,
					"Invalid UDP mask");
	      return ret;
	    }

	  if (sctp_mask->src_port == 0xffff)
	    {
	      rcfg->input_set |= AVF_INSET_SCTP_SRC_PORT;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, SCTP, SRC_PORT);
	    }

	  if (sctp_mask->dst_port == 0xffff)
	    {
	      rcfg->input_set |= AVF_INSET_SCTP_DST_PORT;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, SCTP, DST_PORT);
	    }

	  clib_memcpy (hdr->buffer, sctp_spec, sizeof (*sctp_spec));
	}
      break;

    case VIRTCHNL_PROTO_HDR_GTPU_IP:
      gtp_spec = item->spec;
      gtp_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_GTPU_IP;

      if (gtp_spec && gtp_mask)
	{
	  if (gtp_mask->v_pt_rsv_flags || gtp_mask->msg_type ||
	      gtp_mask->msg_len)
	    {
	      ret = avf_flow_error_set (error, AVF_FAILURE,
					AVF_FLOW_ERROR_TYPE_ITEM, item,
					"Invalid GTP mask");
	      return ret;
	    }

	  if (gtp_mask->teid == 0xffffffff)
	    {
	      rcfg->input_set |= AVF_INSET_GTPU_TEID;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, GTPU_IP, TEID);
	    }

	  clib_memcpy (hdr->buffer, gtp_spec, sizeof (*gtp_spec));
	}

      break;

    case VIRTCHNL_PROTO_HDR_GTPU_EH:
      gtp_psc_spec = item->spec;
      gtp_psc_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_GTPU_EH;

      if (gtp_psc_spec && gtp_psc_mask)
	{
	  if (gtp_psc_mask->qfi == 0xff)
	    {
	      rcfg->input_set |= AVF_INSET_GTPU_QFI;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, GTPU_EH, QFI);
	    }

	  clib_memcpy (hdr->buffer, gtp_psc_spec, sizeof (*gtp_psc_spec));
	}

      break;

    case VIRTCHNL_PROTO_HDR_L2TPV3:
      l2tpv3oip_spec = item->spec;
      l2tpv3oip_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_L2TPV3;

      if (l2tpv3oip_spec && l2tpv3oip_mask)
	{
	  if (l2tpv3oip_mask->session_id == 0xffffffff)
	    {
	      rcfg->input_set |= AVF_L2TPV3OIP_SESSION_ID;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, L2TPV3, SESS_ID);
	    }

	  clib_memcpy (hdr->buffer, l2tpv3oip_spec, sizeof (*l2tpv3oip_spec));
	}
      break;

    case VIRTCHNL_PROTO_HDR_ESP:
      esp_spec = item->spec;
      esp_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_ESP;

      if (esp_spec && esp_mask)
	{
	  if (esp_mask->spi == 0xffffffff)
	    {
	      rcfg->input_set |= AVF_INSET_ESP_SPI;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, ESP, SPI);
	    }

	  clib_memcpy (hdr->buffer, esp_spec, sizeof (*esp_spec));
	}
      break;

    case VIRTCHNL_PROTO_HDR_AH:
      ah_spec = item->spec;
      ah_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_AH;

      if (ah_spec && ah_mask)
	{
	  if (ah_mask->spi == 0xffffffff)
	    {
	      rcfg->input_set |= AVF_INSET_AH_SPI;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, AH, SPI);
	    }

	  clib_memcpy (hdr->buffer, ah_spec, sizeof (*ah_spec));
	}
      break;

    case VIRTCHNL_PROTO_HDR_PFCP:
      pfcp_spec = item->spec;
      pfcp_mask = item->mask;
      hdr->type = VIRTCHNL_PROTO_HDR_PFCP;

      if (pfcp_spec && pfcp_mask)
	{
	  if (pfcp_mask->s_field == 0xff)
	    {
	      rcfg->input_set |= AVF_INSET_PFCP_S_FIELD;
	      VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT (hdr, PFCP, S_FIELD);
	    }

	  clib_memcpy (hdr->buffer, pfcp_spec, sizeof (*pfcp_spec));
	}
      break;

    default:
      ret = avf_flow_error_set (error, AVF_FAILURE, AVF_FLOW_ERROR_TYPE_ITEM,
				item, "Invalid pattern item.");
      return ret;
    }

  return 0;
}

int
avf_fdir_rcfg_act_queue (struct avf_fdir_conf *rcfg, int queue, int size,
			 int act_idx)
{
  if (act_idx >= VIRTCHNL_MAX_NUM_ACTIONS)
    return -AVF_FAILURE;

  struct virtchnl_filter_action *filter_action;

  filter_action = rcfg->add_fltr.rule_cfg.action_set.actions + act_idx;
  filter_action->type = VIRTCHNL_ACTION_QUEUE;
  filter_action->act_conf.queue.index = queue;

  if (size == 1)
    return 0;
  else if (is_pow2 (size))
    filter_action->act_conf.queue.region = fls_u32 (size) - 1;

  return 0;
}

int
avf_fdir_parse_action_qregion (struct avf_fdir_conf *rcfg,
			       const struct avf_flow_action *act, int act_idx,
			       struct avf_flow_error *error)
{
  const struct avf_flow_action_rss *rss = act->conf;
  struct virtchnl_filter_action *filter_action;
  u32 i;
  int ret;

  filter_action = rcfg->add_fltr.rule_cfg.action_set.actions + act_idx;

  if (rss->queue_num <= 1)
    {
      ret = avf_flow_error_set (error, AVF_FAILURE, AVF_FLOW_ERROR_TYPE_ACTION,
				act, "Queue region size can't be 0 or 1.");
      return ret;
    }

  /* check if queue index for queue region is continuous */
  for (i = 0; i < rss->queue_num - 1; i++)
    {
      if (rss->queue[i + 1] != rss->queue[i] + 1)
	{
	  ret =
	    avf_flow_error_set (error, AVF_FAILURE, AVF_FLOW_ERROR_TYPE_ACTION,
				act, "Discontinuous queue region");
	  return ret;
	}
    }

  if (rss->queue[rss->queue_num - 1] >= rcfg->nb_rx_queues)
    {
      ret = avf_flow_error_set (error, AVF_FAILURE, AVF_FLOW_ERROR_TYPE_ACTION,
				act, "Invalid queue region indexes.");
      return ret;
    }

  if (!(is_pow2 (rss->queue_num) &&
	rss->queue_num <= AVF_FDIR_MAX_QREGION_SIZE))
    {
      ret = avf_flow_error_set (error, AVF_FAILURE, AVF_FLOW_ERROR_TYPE_ACTION,
				act,
				"The region size should be any of the"
				"following values: 1, 2, 4, 8, 16, 32"
				", 64, 128 as long as the total number of"
				"queues do not exceed the VSI allocation");
      return ret;
    }

  filter_action->type = VIRTCHNL_ACTION_Q_REGION;
  filter_action->act_conf.queue.index = rss->queue[0];
  filter_action->act_conf.queue.region = fls_u32 (rss->queue_num) - 1;

  return 0;
}

int
avf_fdir_rcfg_act_drop (struct avf_fdir_conf *rcfg, int act_idx)
{
  struct virtchnl_filter_action *filter_action;

  if (act_idx >= VIRTCHNL_MAX_NUM_ACTIONS)
    return -AVF_FAILURE;

  filter_action = rcfg->add_fltr.rule_cfg.action_set.actions + act_idx;
  filter_action->type = VIRTCHNL_ACTION_DROP;

  return 0;
}

int
avf_fdir_rcfg_act_mark (struct avf_fdir_conf *rcfg, const u32 mark,
			int act_idx)
{
  struct virtchnl_filter_action *filter_action;
  if (act_idx >= VIRTCHNL_MAX_NUM_ACTIONS)
    return -AVF_FAILURE;

  filter_action = rcfg->add_fltr.rule_cfg.action_set.actions + act_idx;

  filter_action->type = VIRTCHNL_ACTION_MARK;
  filter_action->act_conf.mark_id = mark;

  return 0;
}

int
avf_fdir_rcfg_validate (struct avf_flow_vc_ctx *ctx,
			struct avf_fdir_conf *rcfg)
{
  int ret;
  rcfg->add_fltr.vsi_id = rcfg->vsi;
  rcfg->add_fltr.validate_only = 1;
  struct virtchnl_fdir_add fdir_ret;

  ret =
    ctx->vc_op (ctx->vc_hdl, VIRTCHNL_ADV_OP_ADD_FDIR_FILTER, &rcfg->add_fltr,
		sizeof (rcfg->add_fltr), &fdir_ret, sizeof (fdir_ret));

  if (ret != 0)
    {
      return ret;
    }

  if (fdir_ret.status != VIRTCHNL_FDIR_SUCCESS)
    {
      ret = -fdir_ret.status;
    }

  return ret;
}

int
avf_fdir_rule_create (struct avf_flow_vc_ctx *ctx, struct avf_fdir_conf *rcfg)
{
  int ret;
  rcfg->add_fltr.vsi_id = rcfg->vsi;
  rcfg->add_fltr.validate_only = 0;
  struct virtchnl_fdir_add fdir_ret;

  ret =
    ctx->vc_op (ctx->vc_hdl, VIRTCHNL_ADV_OP_ADD_FDIR_FILTER, &rcfg->add_fltr,
		sizeof (rcfg->add_fltr), &fdir_ret, sizeof (fdir_ret));

  if (ret != 0)
    {
      return ret;
    }

  rcfg->flow_id = fdir_ret.flow_id;

  if (fdir_ret.status != VIRTCHNL_FDIR_SUCCESS)
    {
      ret = -fdir_ret.status;
    }

  return ret;
}

int
avf_fdir_rule_destroy (struct avf_flow_vc_ctx *ctx, struct avf_fdir_conf *rcfg)
{
  int ret;
  struct virtchnl_fdir_del fdir_ret;
  rcfg->del_fltr.vsi_id = rcfg->vsi;
  rcfg->del_fltr.flow_id = rcfg->flow_id;

  ret =
    ctx->vc_op (ctx->vc_hdl, VIRTCHNL_ADV_OP_DEL_FDIR_FILTER, &rcfg->del_fltr,
		sizeof (rcfg->del_fltr), &fdir_ret, sizeof (fdir_ret));

  if (ret != 0)
    {
      return ret;
    }

  if (fdir_ret.status != VIRTCHNL_FDIR_SUCCESS)
    {
      ret = -fdir_ret.status;
    }

  return ret;
}

int
avf_fdir_parse_action (const struct avf_flow_action actions[],
		       struct avf_fdir_conf *rcfg,
		       struct avf_flow_error *error)
{
  int act_idx = 0, ret = 0;
  u32 dest_num = 0;
  u32 mark_num = 0;
  u32 act_num;
  struct virtchnl_filter_action *filter_action;
  const struct avf_flow_action_queue *act_q;
  const struct avf_flow_action_mark *act_msk;

  struct virtchnl_fdir_rule *rule_cfg = &rcfg->add_fltr.rule_cfg;

  for (; actions->type != VIRTCHNL_ACTION_NONE; actions++, act_idx++)
    {
      switch (actions->type)
	{
	case VIRTCHNL_ACTION_PASSTHRU:
	  dest_num++;
	  filter_action = &rule_cfg->action_set.actions[act_idx];
	  filter_action->type = VIRTCHNL_ACTION_PASSTHRU;
	  rule_cfg->action_set.count++;
	  break;

	case VIRTCHNL_ACTION_DROP:
	  dest_num++;
	  ret = avf_fdir_rcfg_act_drop (rcfg, act_idx);
	  if (ret)
	    return ret;

	  rule_cfg->action_set.count++;
	  break;

	case VIRTCHNL_ACTION_QUEUE:
	  dest_num++;
	  act_q = actions->conf;

	  if (act_q->index >= rcfg->nb_rx_queues)
	    {
	      ret = avf_flow_error_set (error, AVF_FAILURE,
					AVF_FLOW_ERROR_TYPE_ACTION, actions,
					"Invalid queue for FDIR.");
	      return -AVF_FAILURE;
	    }

	  ret = avf_fdir_rcfg_act_queue (rcfg, act_q->index, 1, act_idx);
	  if (ret)
	    return ret;

	  rule_cfg->action_set.count++;
	  break;

	case VIRTCHNL_ACTION_Q_REGION:
	  dest_num++;
	  filter_action = &rule_cfg->action_set.actions[act_idx];
	  ret = avf_fdir_parse_action_qregion (rcfg, actions, act_idx, error);
	  if (ret)
	    return ret;

	  rule_cfg->action_set.count++;
	  break;

	case VIRTCHNL_ACTION_MARK:
	  mark_num++;
	  act_msk = actions->conf;
	  rcfg->mark_flag = 1;

	  ret = avf_fdir_rcfg_act_mark (rcfg, act_msk->id, act_idx);
	  if (ret)
	    return ret;

	  rule_cfg->action_set.count++;
	  break;

	default:
	  ret =
	    avf_flow_error_set (error, AVF_FAILURE, AVF_FLOW_ERROR_TYPE_ACTION,
				actions, "Invalid action.");
	  return ret;
	}
    }

  if (dest_num >= 2)
    {
      ret = avf_flow_error_set (error, AVF_FAILURE, AVF_FLOW_ERROR_TYPE_ACTION,
				actions, "Unsupported action combination");
      return ret;
    }

  if (mark_num >= 2)
    {
      ret = avf_flow_error_set (error, AVF_FAILURE, AVF_FLOW_ERROR_TYPE_ACTION,
				actions, "Too many mark actions");
      return ret;
    }

  if (dest_num + mark_num == 0)
    {
      ret = avf_flow_error_set (error, AVF_FAILURE, AVF_FLOW_ERROR_TYPE_ACTION,
				actions, "Empty action");
      return ret;
    }

  /* Mark only is equal to mark + passthru. */
  act_num = rule_cfg->action_set.count;
  if (dest_num == 0)
    {
      filter_action = &rule_cfg->action_set.actions[act_num];
      filter_action->type = VIRTCHNL_ACTION_PASSTHRU;
      rule_cfg->action_set.count = ++act_num;
    }

  return ret;
}

int
avf_fdir_parse_generic_pattern (struct avf_fdir_conf *rcfg,
				struct avf_flow_item avf_items[],
				struct avf_flow_error *error)
{
  struct avf_flow_item *item = avf_items;
  u8 *pkt_buf, *msk_buf;
  u16 spec_len, pkt_len;

  spec_len = clib_strnlen (item->spec, VIRTCHNL_MAX_SIZE_GEN_PACKET);
  pkt_len = spec_len / 2;

  pkt_buf = clib_mem_alloc (pkt_len);
  msk_buf = clib_mem_alloc (pkt_len);

  avf_parse_generic_pattern (item, pkt_buf, msk_buf, spec_len);

  clib_memcpy (rcfg->add_fltr.rule_cfg.proto_hdrs.raw.spec, pkt_buf, pkt_len);
  clib_memcpy (rcfg->add_fltr.rule_cfg.proto_hdrs.raw.mask, msk_buf, pkt_len);

  rcfg->add_fltr.rule_cfg.proto_hdrs.count = 0;
  rcfg->add_fltr.rule_cfg.proto_hdrs.tunnel_level = 0;
  rcfg->add_fltr.rule_cfg.proto_hdrs.raw.pkt_len = pkt_len;

  clib_mem_free (pkt_buf);
  clib_mem_free (msk_buf);

  return 0;
}

int
avf_fdir_parse_pattern (struct avf_fdir_conf *rcfg,
			struct avf_flow_item avf_items[],
			struct avf_flow_error *error)
{
  int layer = 0;
  int ret = 0;
  struct avf_flow_item *item;

  for (item = avf_items; item->type != VIRTCHNL_PROTO_HDR_NONE; item++)
    {
      ret = avf_fdir_rcfg_set_field (rcfg, layer, item, error);
      if (ret)
	return ret;

      rcfg->add_fltr.rule_cfg.proto_hdrs.count = ++layer;
    }

  return ret;
}

int
avf_flow_error_set (struct avf_flow_error *error, int code,
		    enum avf_flow_error_type type, const void *cause,
		    const char *message)
{
  if (error)
    {
      *error = (struct avf_flow_error){
	.type = type,
	.cause = cause,
	.message = message,
      };
    }

  return code;
}

char *
avf_fdir_prgm_error_decode (int err_no)
{
  enum virtchnl_fdir_prgm_status status;
  char *s = NULL;

  err_no = -err_no;

  if (err_no >= VIRTCHNL_FDIR_FAILURE_MAX)
    return "Failed to program the rule due to other reasons";

  status = (enum virtchnl_fdir_prgm_status) err_no;
  switch (status)
    {
    case VIRTCHNL_FDIR_SUCCESS:
      s = "Succeed in programming rule request by PF";
      break;
    case VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE:
      s = "Failed to add rule request due to no hardware resource";
      break;
    case VIRTCHNL_FDIR_FAILURE_RULE_EXIST:
      s = "Failed to add rule request due to the rule is already existed";
      break;
    case VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT:
      s = "Failed to add rule request due to the rule is conflict with "
	  "existing rule";
      break;
    case VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST:
      s = "Failed to delete rule request due to this rule doesn't exist";
      break;
    case VIRTCHNL_FDIR_FAILURE_RULE_INVALID:
      s = "Failed to add rule request due to the hardware doesn't support";
      break;
    case VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT:
      s = "Failed to add rule request due to time out for programming";
      break;
    case VIRTCHNL_FDIR_FAILURE_QUERY_INVALID:
      s = "Succeed in programming rule request by PF";
      break;
    default:
      s = "Failed to program the rule due to other reasons";
      break;
    }

  return s;
}

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */