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authorpmikus <pmikus@cisco.com>2021-05-26 05:52:51 +0000
committerpmikus <pmikus@cisco.com>2021-05-26 06:30:23 +0000
commit8c609a6fc0eaf3c8d5b424ed314158251f06479f (patch)
tree6ec00dbc2222fe10bf384a24d521b5bfe9f2e7fe /tests/vpp/perf/crypto/10ge2p1x710-ethip4ipsec1000tnlhwasync-ip4base-policy-aes256gcm-ndrpdr.robot
parent46e030569e675938d5459c12a982678bcf0eec3b (diff)
Perf: Add perfmon_plugin for telemetry
Signed-off-by: pmikus <pmikus@cisco.com> Change-Id: I710af90aa5474381a82095c8a11ecf6c01c2483b
Diffstat (limited to 'tests/vpp/perf/crypto/10ge2p1x710-ethip4ipsec1000tnlhwasync-ip4base-policy-aes256gcm-ndrpdr.robot')
-rw-r--r--tests/vpp/perf/crypto/10ge2p1x710-ethip4ipsec1000tnlhwasync-ip4base-policy-aes256gcm-ndrpdr.robot7
1 files changed, 4 insertions, 3 deletions
diff --git a/tests/vpp/perf/crypto/10ge2p1x710-ethip4ipsec1000tnlhwasync-ip4base-policy-aes256gcm-ndrpdr.robot b/tests/vpp/perf/crypto/10ge2p1x710-ethip4ipsec1000tnlhwasync-ip4base-policy-aes256gcm-ndrpdr.robot
index 774a645fb3..bb9ed4f019 100644
--- a/tests/vpp/perf/crypto/10ge2p1x710-ethip4ipsec1000tnlhwasync-ip4base-policy-aes256gcm-ndrpdr.robot
+++ b/tests/vpp/perf/crypto/10ge2p1x710-ethip4ipsec1000tnlhwasync-ip4base-policy-aes256gcm-ndrpdr.robot
@@ -1,5 +1,5 @@
-# Copyright (c) 2020 Cisco and/or its affiliates.
-# Copyright (c) 2020 Intel and/or its affiliates.
+# Copyright (c) 2021 Cisco and/or its affiliates.
+# Copyright (c) 2021 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:
@@ -54,7 +54,8 @@
| ... | *[Ref] Applicable standard specifications:* RFC4303 and RFC2544.
*** Variables ***
-| @{plugins_to_enable}= | dpdk_plugin.so | crypto_native_plugin.so
+| @{plugins_to_enable}= | dpdk_plugin.so | perfmon_plugin.so
+| ... | crypto_native_plugin.so
| ... | crypto_ipsecmb_plugin.so | crypto_openssl_plugin.so
| ${crypto_type}= | HW_DH895xcc
| ${nic_name}= | Intel-X710
id='n424' href='#n424'>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 
/*
 * Copyright (c) 2017 SUSE LLC.
 * 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 <vlib/vlib.h>
#include <vnet/pg/pg.h>
#include <vnet/geneve/geneve.h>

vlib_node_registration_t geneve4_input_node;
vlib_node_registration_t geneve6_input_node;

typedef struct
{
  u32 next_index;
  u32 tunnel_index;
  u32 error;
  u32 vni_rsvd;
} geneve_rx_trace_t;

static u8 *
format_geneve_rx_trace (u8 * s, va_list * args)
{
  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
  geneve_rx_trace_t *t = va_arg (*args, geneve_rx_trace_t *);

  if (t->tunnel_index != ~0)
    {
      s =
	format (s,
		"GENEVE decap from geneve_tunnel%d vni %d next %d error %d",
		t->tunnel_index, t->vni_rsvd, t->next_index, t->error);
    }
  else
    {
      s = format (s, "GENEVE decap error - tunnel for vni %d does not exist",
		  t->vni_rsvd);
    }
  return s;
}

always_inline u32
validate_geneve_fib (vlib_buffer_t * b, geneve_tunnel_t * t, u32 is_ip4)
{
  u32 fib_index, sw_if_index;

  sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];

  if (is_ip4)
    fib_index = (vnet_buffer (b)->sw_if_index[VLIB_TX] == (u32) ~ 0) ?
      vec_elt (ip4_main.fib_index_by_sw_if_index, sw_if_index) :
      vnet_buffer (b)->sw_if_index[VLIB_TX];
  else
    fib_index = (vnet_buffer (b)->sw_if_index[VLIB_TX] == (u32) ~ 0) ?
      vec_elt (ip6_main.fib_index_by_sw_if_index, sw_if_index) :
      vnet_buffer (b)->sw_if_index[VLIB_TX];

  return (fib_index == t->encap_fib_index);
}

always_inline uword
geneve_input (vlib_main_t * vm,
	      vlib_node_runtime_t * node,
	      vlib_frame_t * from_frame, u32 is_ip4)
{
  u32 n_left_from, next_index, *from, *to_next;
  geneve_main_t *vxm = &geneve_main;
  vnet_main_t *vnm = vxm->vnet_main;
  vnet_interface_main_t *im = &vnm->interface_main;
  u32 last_tunnel_index = ~0;
  geneve4_tunnel_key_t last_key4;
  geneve6_tunnel_key_t last_key6;
  u32 pkts_decapsulated = 0;
  u32 thread_index = vlib_get_thread_index ();
  u32 stats_sw_if_index, stats_n_packets, stats_n_bytes;

  if (is_ip4)
    last_key4.as_u64 = ~0;
  else
    memset (&last_key6, 0xff, sizeof (last_key6));

  from = vlib_frame_vector_args (from_frame);
  n_left_from = from_frame->n_vectors;

  next_index = node->cached_next_index;
  stats_sw_if_index = node->runtime_data[0];
  stats_n_packets = stats_n_bytes = 0;

  while (n_left_from > 0)
    {
      u32 n_left_to_next;

      vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
      while (n_left_from >= 4 && n_left_to_next >= 2)
	{
	  u32 bi0, bi1;
	  vlib_buffer_t *b0, *b1;
	  u32 next0, next1;
	  ip4_header_t *ip4_0, *ip4_1;
	  ip6_header_t *ip6_0, *ip6_1;
	  geneve_header_t *geneve0, *geneve1;
	  uword *p0, *p1;
	  u32 tunnel_index0, tunnel_index1;
	  geneve_tunnel_t *t0, *t1, *mt0 = NULL, *mt1 = NULL;
	  geneve4_tunnel_key_t key4_0, key4_1;
	  geneve6_tunnel_key_t key6_0, key6_1;
	  u32 error0, error1;
	  u32 sw_if_index0, sw_if_index1, len0, len1;

	  /* Prefetch next iteration. */
	  {
	    vlib_buffer_t *p2, *p3;

	    p2 = vlib_get_buffer (vm, from[2]);
	    p3 = vlib_get_buffer (vm, from[3]);

	    vlib_prefetch_buffer_header (p2, LOAD);
	    vlib_prefetch_buffer_header (p3, LOAD);

	    CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
	    CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
	  }

	  bi0 = from[0];
	  bi1 = from[1];
	  to_next[0] = bi0;
	  to_next[1] = bi1;
	  from += 2;
	  to_next += 2;
	  n_left_to_next -= 2;
	  n_left_from -= 2;

	  b0 = vlib_get_buffer (vm, bi0);
	  b1 = vlib_get_buffer (vm, bi1);

	  /* udp leaves current_data pointing at the geneve header */
	  geneve0 = vlib_buffer_get_current (b0);
	  geneve1 = vlib_buffer_get_current (b1);

	  vnet_geneve_hdr_1word_ntoh (geneve0);
	  vnet_geneve_hdr_1word_ntoh (geneve1);

	  if (is_ip4)
	    {
	      vlib_buffer_advance
		(b0, -(word) (sizeof (udp_header_t) + sizeof (ip4_header_t)));
	      vlib_buffer_advance
		(b1, -(word) (sizeof (udp_header_t) + sizeof (ip4_header_t)));
	      ip4_0 = vlib_buffer_get_current (b0);
	      ip4_1 = vlib_buffer_get_current (b1);
	    }
	  else
	    {
	      vlib_buffer_advance
		(b0, -(word) (sizeof (udp_header_t) + sizeof (ip6_header_t)));
	      vlib_buffer_advance
		(b1, -(word) (sizeof (udp_header_t) + sizeof (ip6_header_t)));
	      ip6_0 = vlib_buffer_get_current (b0);
	      ip6_1 = vlib_buffer_get_current (b1);
	    }

	  /* pop (ip, udp, geneve) */
	  if (is_ip4)
	    {
	      vlib_buffer_advance
		(b0,
		 sizeof (*ip4_0) + sizeof (udp_header_t) +
		 GENEVE_BASE_HEADER_LENGTH +
		 vnet_get_geneve_options_len (geneve0));
	      vlib_buffer_advance (b1,
				   sizeof (*ip4_1) + sizeof (udp_header_t) +
				   GENEVE_BASE_HEADER_LENGTH +
				   vnet_get_geneve_options_len (geneve1));
	    }
	  else
	    {
	      vlib_buffer_advance
		(b0,
		 sizeof (*ip6_0) + sizeof (udp_header_t) +
		 GENEVE_BASE_HEADER_LENGTH +
		 vnet_get_geneve_options_len (geneve0));
	      vlib_buffer_advance (b0,
				   sizeof (*ip6_0) + sizeof (udp_header_t) +
				   GENEVE_BASE_HEADER_LENGTH +
				   vnet_get_geneve_options_len (geneve1));
	    }

	  tunnel_index0 = ~0;
	  error0 = 0;

	  tunnel_index1 = ~0;
	  error1 = 0;

	  if (PREDICT_FALSE
	      (vnet_get_geneve_version (geneve0) != GENEVE_VERSION))
	    {
	      error0 = GENEVE_ERROR_BAD_FLAGS;
	      next0 = GENEVE_INPUT_NEXT_DROP;
	      goto trace0;
	    }
#if SUPPORT_OPTIONS_HEADER==1
	  if (PREDICT_FALSE (vnet_get_geneve_critical_bit (geneve0) == 1))
	    {
	      error0 = GENEVE_ERROR_BAD_FLAGS;
	      next0 = GENEVE_INPUT_NEXT_DROP;
	      goto trace0;
	    }
#endif
	  if (is_ip4)
	    {
	      key4_0.remote = ip4_0->src_address.as_u32;
	      key4_0.vni = vnet_get_geneve_vni_bigendian (geneve0);

	      /* Make sure GENEVE tunnel exist according to packet SIP and VNI */
	      if (PREDICT_FALSE (key4_0.as_u64 != last_key4.as_u64))
		{
		  p0 = hash_get (vxm->geneve4_tunnel_by_key, key4_0.as_u64);
		  if (PREDICT_FALSE (p0 == NULL))
		    {
		      error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		      next0 = GENEVE_INPUT_NEXT_DROP;
		      goto trace0;
		    }
		  last_key4.as_u64 = key4_0.as_u64;
		  tunnel_index0 = last_tunnel_index = p0[0];
		}
	      else
		tunnel_index0 = last_tunnel_index;
	      t0 = pool_elt_at_index (vxm->tunnels, tunnel_index0);

	      /* Validate GENEVE tunnel encap-fib index agaist packet */
	      if (PREDICT_FALSE (validate_geneve_fib (b0, t0, is_ip4) == 0))
		{
		  error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		  next0 = GENEVE_INPUT_NEXT_DROP;
		  goto trace0;
		}

	      /* Validate GENEVE tunnel SIP against packet DIP */
	      if (PREDICT_TRUE
		  (ip4_0->dst_address.as_u32 == t0->local.ip4.as_u32))
		goto next0;	/* valid packet */
	      if (PREDICT_FALSE
		  (ip4_address_is_multicast (&ip4_0->dst_address)))
		{
		  key4_0.remote = ip4_0->dst_address.as_u32;
		  key4_0.vni = vnet_get_geneve_vni_bigendian (geneve0);
		  /* Make sure mcast GENEVE tunnel exist by packet DIP and VNI */
		  p0 = hash_get (vxm->geneve4_tunnel_by_key, key4_0.as_u64);
		  if (PREDICT_TRUE (p0 != NULL))
		    {
		      mt0 = pool_elt_at_index (vxm->tunnels, p0[0]);
		      goto next0;	/* valid packet */
		    }
		}
	      error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
	      next0 = GENEVE_INPUT_NEXT_DROP;
	      goto trace0;

	    }
	  else			/* !is_ip4 */
	    {
	      key6_0.remote.as_u64[0] = ip6_0->src_address.as_u64[0];
	      key6_0.remote.as_u64[1] = ip6_0->src_address.as_u64[1];
	      key6_0.vni = vnet_get_geneve_vni_bigendian (geneve0);

	      /* Make sure GENEVE tunnel exist according to packet SIP and VNI */
	      if (PREDICT_FALSE
		  (memcmp (&key6_0, &last_key6, sizeof (last_key6)) != 0))
		{
		  p0 = hash_get_mem (vxm->geneve6_tunnel_by_key, &key6_0);
		  if (PREDICT_FALSE (p0 == NULL))
		    {
		      error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		      next0 = GENEVE_INPUT_NEXT_DROP;
		      goto trace0;
		    }
		  clib_memcpy (&last_key6, &key6_0, sizeof (key6_0));
		  tunnel_index0 = last_tunnel_index = p0[0];
		}
	      else
		tunnel_index0 = last_tunnel_index;
	      t0 = pool_elt_at_index (vxm->tunnels, tunnel_index0);

	      /* Validate GENEVE tunnel encap-fib index agaist packet */
	      if (PREDICT_FALSE (validate_geneve_fib (b0, t0, is_ip4) == 0))
		{
		  error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		  next0 = GENEVE_INPUT_NEXT_DROP;
		  goto trace0;
		}

	      /* Validate GENEVE tunnel SIP against packet DIP */
	      if (PREDICT_TRUE (ip6_address_is_equal (&ip6_0->dst_address,
						      &t0->local.ip6)))
		goto next0;	/* valid packet */
	      if (PREDICT_FALSE
		  (ip6_address_is_multicast (&ip6_0->dst_address)))
		{
		  key6_0.remote.as_u64[0] = ip6_0->dst_address.as_u64[0];
		  key6_0.remote.as_u64[1] = ip6_0->dst_address.as_u64[1];
		  key6_0.vni = vnet_get_geneve_vni_bigendian (geneve0);
		  p0 = hash_get_mem (vxm->geneve6_tunnel_by_key, &key6_0);
		  if (PREDICT_TRUE (p0 != NULL))
		    {
		      mt0 = pool_elt_at_index (vxm->tunnels, p0[0]);
		      goto next0;	/* valid packet */
		    }
		}
	      error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
	      next0 = GENEVE_INPUT_NEXT_DROP;
	      goto trace0;
	    }

	next0:
	  next0 = t0->decap_next_index;
	  sw_if_index0 = t0->sw_if_index;
	  len0 = vlib_buffer_length_in_chain (vm, b0);

	  /* Required to make the l2 tag push / pop code work on l2 subifs */
	  if (PREDICT_TRUE (next0 == GENEVE_INPUT_NEXT_L2_INPUT))
	    vnet_update_l2_len (b0);

	  /* Set packet input sw_if_index to unicast GENEVE tunnel for learning */
	  vnet_buffer (b0)->sw_if_index[VLIB_RX] = sw_if_index0;
	  sw_if_index0 = (mt0) ? mt0->sw_if_index : sw_if_index0;

	  pkts_decapsulated++;
	  stats_n_packets += 1;
	  stats_n_bytes += len0;

	  /* Batch stats increment on the same geneve tunnel so counter
	     is not incremented per packet */
	  if (PREDICT_FALSE (sw_if_index0 != stats_sw_if_index))
	    {
	      stats_n_packets -= 1;
	      stats_n_bytes -= len0;
	      if (stats_n_packets)
		vlib_increment_combined_counter
		  (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
		   thread_index, stats_sw_if_index,
		   stats_n_packets, stats_n_bytes);
	      stats_n_packets = 1;
	      stats_n_bytes = len0;
	      stats_sw_if_index = sw_if_index0;
	    }

	trace0:
	  b0->error = error0 ? node->errors[error0] : 0;

	  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
	    {
	      geneve_rx_trace_t *tr
		= vlib_add_trace (vm, node, b0, sizeof (*tr));
	      tr->next_index = next0;
	      tr->error = error0;
	      tr->tunnel_index = tunnel_index0;
	      tr->vni_rsvd = vnet_get_geneve_vni (geneve0);
	    }

	  if (PREDICT_FALSE
	      (vnet_get_geneve_version (geneve1) != GENEVE_VERSION))
	    {
	      error1 = GENEVE_ERROR_BAD_FLAGS;
	      next1 = GENEVE_INPUT_NEXT_DROP;
	      goto trace1;
	    }
#if SUPPORT_OPTIONS_HEADER==1
	  if (PREDICT_FALSE (vnet_get_geneve_critical_bit (geneve1) == 1))
	    {
	      error1 = GENEVE_ERROR_BAD_FLAGS;
	      next1 = GENEVE_INPUT_NEXT_DROP;
	      goto trace1;
	    }
#endif
	  if (is_ip4)
	    {
	      key4_1.remote = ip4_1->src_address.as_u32;
	      key4_1.vni = vnet_get_geneve_vni_bigendian (geneve1);

	      /* Make sure unicast GENEVE tunnel exist by packet SIP and VNI */
	      if (PREDICT_FALSE (key4_1.as_u64 != last_key4.as_u64))
		{
		  p1 = hash_get (vxm->geneve4_tunnel_by_key, key4_1.as_u64);
		  if (PREDICT_FALSE (p1 == NULL))
		    {
		      error1 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		      next1 = GENEVE_INPUT_NEXT_DROP;
		      goto trace1;
		    }
		  last_key4.as_u64 = key4_1.as_u64;
		  tunnel_index1 = last_tunnel_index = p1[0];
		}
	      else
		tunnel_index1 = last_tunnel_index;
	      t1 = pool_elt_at_index (vxm->tunnels, tunnel_index1);

	      /* Validate GENEVE tunnel encap-fib index agaist packet */
	      if (PREDICT_FALSE (validate_geneve_fib (b1, t1, is_ip4) == 0))
		{
		  error1 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		  next1 = GENEVE_INPUT_NEXT_DROP;
		  goto trace1;
		}

	      /* Validate GENEVE tunnel SIP against packet DIP */
	      if (PREDICT_TRUE
		  (ip4_1->dst_address.as_u32 == t1->local.ip4.as_u32))
		goto next1;	/* valid packet */
	      if (PREDICT_FALSE
		  (ip4_address_is_multicast (&ip4_1->dst_address)))
		{
		  key4_1.remote = ip4_1->dst_address.as_u32;
		  key4_1.vni = vnet_get_geneve_vni_bigendian (geneve1);
		  /* Make sure mcast GENEVE tunnel exist by packet DIP and VNI */
		  p1 = hash_get (vxm->geneve4_tunnel_by_key, key4_1.as_u64);
		  if (PREDICT_TRUE (p1 != NULL))
		    {
		      mt1 = pool_elt_at_index (vxm->tunnels, p1[0]);
		      goto next1;	/* valid packet */
		    }
		}
	      error1 = GENEVE_ERROR_NO_SUCH_TUNNEL;
	      next1 = GENEVE_INPUT_NEXT_DROP;
	      goto trace1;

	    }
	  else			/* !is_ip4 */
	    {
	      key6_1.remote.as_u64[0] = ip6_1->src_address.as_u64[0];
	      key6_1.remote.as_u64[1] = ip6_1->src_address.as_u64[1];
	      key6_1.vni = vnet_get_geneve_vni_bigendian (geneve1);

	      /* Make sure GENEVE tunnel exist according to packet SIP and VNI */
	      if (PREDICT_FALSE
		  (memcmp (&key6_1, &last_key6, sizeof (last_key6)) != 0))
		{
		  p1 = hash_get_mem (vxm->geneve6_tunnel_by_key, &key6_1);

		  if (PREDICT_FALSE (p1 == NULL))
		    {
		      error1 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		      next1 = GENEVE_INPUT_NEXT_DROP;
		      goto trace1;
		    }

		  clib_memcpy (&last_key6, &key6_1, sizeof (key6_1));
		  tunnel_index1 = last_tunnel_index = p1[0];
		}
	      else
		tunnel_index1 = last_tunnel_index;
	      t1 = pool_elt_at_index (vxm->tunnels, tunnel_index1);

	      /* Validate GENEVE tunnel encap-fib index agaist packet */
	      if (PREDICT_FALSE (validate_geneve_fib (b1, t1, is_ip4) == 0))
		{
		  error1 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		  next1 = GENEVE_INPUT_NEXT_DROP;
		  goto trace1;
		}

	      /* Validate GENEVE tunnel SIP against packet DIP */
	      if (PREDICT_TRUE (ip6_address_is_equal (&ip6_1->dst_address,
						      &t1->local.ip6)))
		goto next1;	/* valid packet */
	      if (PREDICT_FALSE
		  (ip6_address_is_multicast (&ip6_1->dst_address)))
		{
		  key6_1.remote.as_u64[0] = ip6_1->dst_address.as_u64[0];
		  key6_1.remote.as_u64[1] = ip6_1->dst_address.as_u64[1];
		  key6_1.vni = vnet_get_geneve_vni_bigendian (geneve1);
		  p1 = hash_get_mem (vxm->geneve6_tunnel_by_key, &key6_1);
		  if (PREDICT_TRUE (p1 != NULL))
		    {
		      mt1 = pool_elt_at_index (vxm->tunnels, p1[0]);
		      goto next1;	/* valid packet */
		    }
		}
	      error1 = GENEVE_ERROR_NO_SUCH_TUNNEL;
	      next1 = GENEVE_INPUT_NEXT_DROP;
	      goto trace1;
	    }

	next1:
	  next1 = t1->decap_next_index;
	  sw_if_index1 = t1->sw_if_index;
	  len1 = vlib_buffer_length_in_chain (vm, b1);

	  /* Required to make the l2 tag push / pop code work on l2 subifs */
	  if (PREDICT_TRUE (next1 == GENEVE_INPUT_NEXT_L2_INPUT))
	    vnet_update_l2_len (b1);

	  /* Set packet input sw_if_index to unicast GENEVE tunnel for learning */
	  vnet_buffer (b1)->sw_if_index[VLIB_RX] = sw_if_index1;
	  sw_if_index1 = (mt1) ? mt1->sw_if_index : sw_if_index1;

	  pkts_decapsulated++;
	  stats_n_packets += 1;
	  stats_n_bytes += len1;

	  /* Batch stats increment on the same geneve tunnel so counter
	     is not incremented per packet */
	  if (PREDICT_FALSE (sw_if_index1 != stats_sw_if_index))
	    {
	      stats_n_packets -= 1;
	      stats_n_bytes -= len1;
	      if (stats_n_packets)
		vlib_increment_combined_counter
		  (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
		   thread_index, stats_sw_if_index,
		   stats_n_packets, stats_n_bytes);
	      stats_n_packets = 1;
	      stats_n_bytes = len1;
	      stats_sw_if_index = sw_if_index1;
	    }

	trace1:
	  b1->error = error1 ? node->errors[error1] : 0;

	  if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
	    {
	      geneve_rx_trace_t *tr
		= vlib_add_trace (vm, node, b1, sizeof (*tr));
	      tr->next_index = next1;
	      tr->error = error1;
	      tr->tunnel_index = tunnel_index1;
	      tr->vni_rsvd = vnet_get_geneve_vni (geneve1);
	    }

	  vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
					   to_next, n_left_to_next,
					   bi0, bi1, next0, next1);
	}

      while (n_left_from > 0 && n_left_to_next > 0)
	{
	  u32 bi0;
	  vlib_buffer_t *b0;
	  u32 next0;
	  ip4_header_t *ip4_0;
	  ip6_header_t *ip6_0;
	  geneve_header_t *geneve0;
	  uword *p0;
	  u32 tunnel_index0;
	  geneve_tunnel_t *t0, *mt0 = NULL;
	  geneve4_tunnel_key_t key4_0;
	  geneve6_tunnel_key_t key6_0;
	  u32 error0;
	  u32 sw_if_index0, len0;

	  bi0 = from[0];
	  to_next[0] = bi0;
	  from += 1;
	  to_next += 1;
	  n_left_from -= 1;
	  n_left_to_next -= 1;

	  b0 = vlib_get_buffer (vm, bi0);

	  /* udp leaves current_data pointing at the geneve header */
	  geneve0 = vlib_buffer_get_current (b0);
	  vnet_geneve_hdr_1word_ntoh (geneve0);

	  if (is_ip4)
	    {
	      vlib_buffer_advance
		(b0, -(word) (sizeof (udp_header_t) + sizeof (ip4_header_t)));
	      ip4_0 = vlib_buffer_get_current (b0);
	    }
	  else
	    {
	      vlib_buffer_advance
		(b0, -(word) (sizeof (udp_header_t) + sizeof (ip6_header_t)));
	      ip6_0 = vlib_buffer_get_current (b0);
	    }

	  /* pop (ip, udp, geneve) */
	  if (is_ip4)
	    {
	      vlib_buffer_advance
		(b0,
		 sizeof (*ip4_0) + sizeof (udp_header_t) +
		 GENEVE_BASE_HEADER_LENGTH +
		 vnet_get_geneve_options_len (geneve0));
	    }
	  else
	    {
	      vlib_buffer_advance
		(b0,
		 sizeof (*ip6_0) + sizeof (udp_header_t) +
		 GENEVE_BASE_HEADER_LENGTH +
		 vnet_get_geneve_options_len (geneve0));
	    }

	  tunnel_index0 = ~0;
	  error0 = 0;

	  if (PREDICT_FALSE
	      (vnet_get_geneve_version (geneve0) != GENEVE_VERSION))
	    {
	      error0 = GENEVE_ERROR_BAD_FLAGS;
	      next0 = GENEVE_INPUT_NEXT_DROP;
	      goto trace00;
	    }
#if SUPPORT_OPTIONS_HEADER==1
	  if (PREDICT_FALSE (vnet_get_geneve_critical_bit (geneve0) == 1))
	    {
	      error0 = GENEVE_ERROR_BAD_FLAGS;
	      next0 = GENEVE_INPUT_NEXT_DROP;
	      goto trace00;
	    }
#endif
	  if (is_ip4)
	    {
	      key4_0.remote = ip4_0->src_address.as_u32;
	      key4_0.vni = vnet_get_geneve_vni_bigendian (geneve0);

	      /* Make sure unicast GENEVE tunnel exist by packet SIP and VNI */
	      if (PREDICT_FALSE (key4_0.as_u64 != last_key4.as_u64))
		{
		  p0 = hash_get (vxm->geneve4_tunnel_by_key, key4_0.as_u64);
		  if (PREDICT_FALSE (p0 == NULL))
		    {
		      error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		      next0 = GENEVE_INPUT_NEXT_DROP;
		      goto trace00;
		    }
		  last_key4.as_u64 = key4_0.as_u64;
		  tunnel_index0 = last_tunnel_index = p0[0];
		}
	      else
		tunnel_index0 = last_tunnel_index;
	      t0 = pool_elt_at_index (vxm->tunnels, tunnel_index0);

	      /* Validate GENEVE tunnel encap-fib index agaist packet */
	      if (PREDICT_FALSE (validate_geneve_fib (b0, t0, is_ip4) == 0))
		{
		  error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		  next0 = GENEVE_INPUT_NEXT_DROP;
		  goto trace00;
		}

	      /* Validate GENEVE tunnel SIP against packet DIP */
	      if (PREDICT_TRUE
		  (ip4_0->dst_address.as_u32 == t0->local.ip4.as_u32))
		goto next00;	/* valid packet */
	      if (PREDICT_FALSE
		  (ip4_address_is_multicast (&ip4_0->dst_address)))
		{
		  key4_0.remote = ip4_0->dst_address.as_u32;
		  key4_0.vni = vnet_get_geneve_vni_bigendian (geneve0);
		  /* Make sure mcast GENEVE tunnel exist by packet DIP and VNI */
		  p0 = hash_get (vxm->geneve4_tunnel_by_key, key4_0.as_u64);
		  if (PREDICT_TRUE (p0 != NULL))
		    {
		      mt0 = pool_elt_at_index (vxm->tunnels, p0[0]);
		      goto next00;	/* valid packet */
		    }
		}
	      error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
	      next0 = GENEVE_INPUT_NEXT_DROP;
	      goto trace00;

	    }
	  else			/* !is_ip4 */
	    {
	      key6_0.remote.as_u64[0] = ip6_0->src_address.as_u64[0];
	      key6_0.remote.as_u64[1] = ip6_0->src_address.as_u64[1];
	      key6_0.vni = vnet_get_geneve_vni_bigendian (geneve0);

	      /* Make sure GENEVE tunnel exist according to packet SIP and VNI */
	      if (PREDICT_FALSE
		  (memcmp (&key6_0, &last_key6, sizeof (last_key6)) != 0))
		{
		  p0 = hash_get_mem (vxm->geneve6_tunnel_by_key, &key6_0);
		  if (PREDICT_FALSE (p0 == NULL))
		    {
		      error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		      next0 = GENEVE_INPUT_NEXT_DROP;
		      goto trace00;
		    }
		  clib_memcpy (&last_key6, &key6_0, sizeof (key6_0));
		  tunnel_index0 = last_tunnel_index = p0[0];
		}
	      else
		tunnel_index0 = last_tunnel_index;
	      t0 = pool_elt_at_index (vxm->tunnels, tunnel_index0);

	      /* Validate GENEVE tunnel encap-fib index agaist packet */
	      if (PREDICT_FALSE (validate_geneve_fib (b0, t0, is_ip4) == 0))
		{
		  error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
		  next0 = GENEVE_INPUT_NEXT_DROP;
		  goto trace00;
		}

	      /* Validate GENEVE tunnel SIP against packet DIP */
	      if (PREDICT_TRUE (ip6_address_is_equal (&ip6_0->dst_address,
						      &t0->local.ip6)))
		goto next00;	/* valid packet */
	      if (PREDICT_FALSE
		  (ip6_address_is_multicast (&ip6_0->dst_address)))
		{
		  key6_0.remote.as_u64[0] = ip6_0->dst_address.as_u64[0];
		  key6_0.remote.as_u64[1] = ip6_0->dst_address.as_u64[1];
		  key6_0.vni = vnet_get_geneve_vni_bigendian (geneve0);
		  p0 = hash_get_mem (vxm->geneve6_tunnel_by_key, &key6_0);
		  if (PREDICT_TRUE (p0 != NULL))
		    {
		      mt0 = pool_elt_at_index (vxm->tunnels, p0[0]);
		      goto next00;	/* valid packet */
		    }
		}
	      error0 = GENEVE_ERROR_NO_SUCH_TUNNEL;
	      next0 = GENEVE_INPUT_NEXT_DROP;
	      goto trace00;
	    }

	next00:
	  next0 = t0->decap_next_index;
	  sw_if_index0 = t0->sw_if_index;
	  len0 = vlib_buffer_length_in_chain (vm, b0);

	  /* Required to make the l2 tag push / pop code work on l2 subifs */
	  if (PREDICT_TRUE (next0 == GENEVE_INPUT_NEXT_L2_INPUT))
	    vnet_update_l2_len (b0);

	  /* Set packet input sw_if_index to unicast GENEVE tunnel for learning */
	  vnet_buffer (b0)->sw_if_index[VLIB_RX] = sw_if_index0;
	  sw_if_index0 = (mt0) ? mt0->sw_if_index : sw_if_index0;

	  pkts_decapsulated++;
	  stats_n_packets += 1;
	  stats_n_bytes += len0;

	  /* Batch stats increment on the same geneve tunnel so counter
	     is not incremented per packet */
	  if (PREDICT_FALSE (sw_if_index0 != stats_sw_if_index))
	    {
	      stats_n_packets -= 1;
	      stats_n_bytes -= len0;
	      if (stats_n_packets)
		vlib_increment_combined_counter
		  (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
		   thread_index, stats_sw_if_index,
		   stats_n_packets, stats_n_bytes);
	      stats_n_packets = 1;
	      stats_n_bytes = len0;
	      stats_sw_if_index = sw_if_index0;
	    }

	trace00:
	  b0->error = error0 ? node->errors[error0] : 0;

	  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
	    {
	      geneve_rx_trace_t *tr
		= vlib_add_trace (vm, node, b0, sizeof (*tr));
	      tr->next_index = next0;
	      tr->error = error0;
	      tr->tunnel_index = tunnel_index0;
	      tr->vni_rsvd = vnet_get_geneve_vni (geneve0);
	    }
	  vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
					   to_next, n_left_to_next,
					   bi0, next0);
	}

      vlib_put_next_frame (vm, node, next_index, n_left_to_next);
    }
  /* Do we still need this now that tunnel tx stats is kept? */
  vlib_node_increment_counter (vm, is_ip4 ?
			       geneve4_input_node.
			       index : geneve6_input_node.index,
			       GENEVE_ERROR_DECAPSULATED, pkts_decapsulated);

  /* Increment any remaining batch stats */
  if (stats_n_packets)
    {
      vlib_increment_combined_counter
	(im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX,
	 thread_index, stats_sw_if_index, stats_n_packets, stats_n_bytes);
      node->runtime_data[0] = stats_sw_if_index;
    }

  return from_frame->n_vectors;
}

static uword
geneve4_input (vlib_main_t * vm,
	       vlib_node_runtime_t * node, vlib_frame_t * from_frame)
{
  return geneve_input (vm, node, from_frame, /* is_ip4 */ 1);
}

static uword
geneve6_input (vlib_main_t * vm,
	       vlib_node_runtime_t * node, vlib_frame_t * from_frame)
{
  return geneve_input (vm, node, from_frame, /* is_ip4 */ 0);
}

static char *geneve_error_strings[] = {
#define geneve_error(n,s) s,
#include <vnet/geneve/geneve_error.def>
#undef geneve_error
#undef _
};

/* *INDENT-OFF* */
VLIB_REGISTER_NODE (geneve4_input_node) = {
  .function = geneve4_input,
  .name = "geneve4-input",
  /* Takes a vector of packets. */
  .vector_size = sizeof (u32),
  .n_errors = GENEVE_N_ERROR,
  .error_strings = geneve_error_strings,
  .n_next_nodes = GENEVE_INPUT_N_NEXT,
  .next_nodes = {
#define _(s,n) [GENEVE_INPUT_NEXT_##s] = n,
    foreach_geneve_input_next
#undef _
  },

//temp  .format_buffer = format_geneve_header,
  .format_trace = format_geneve_rx_trace,
  // $$$$ .unformat_buffer = unformat_geneve_header,
};

VLIB_NODE_FUNCTION_MULTIARCH (geneve4_input_node, geneve4_input)

VLIB_REGISTER_NODE (geneve6_input_node) = {
  .function = geneve6_input,
  .name = "geneve6-input",
  /* Takes a vector of packets. */
  .vector_size = sizeof (u32),
  .n_errors = GENEVE_N_ERROR,
  .error_strings = geneve_error_strings,
  .n_next_nodes = GENEVE_INPUT_N_NEXT,
  .next_nodes = {
#define _(s,n) [GENEVE_INPUT_NEXT_##s] = n,
  foreach_geneve_input_next
#undef _
  },
//temp  .format_buffer = format_geneve_header,
  .format_trace = format_geneve_rx_trace,
  // $$$$ .unformat_buffer = unformat_geneve_header,
};

VLIB_NODE_FUNCTION_MULTIARCH (geneve6_input_node, geneve6_input)
/* *INDENT-ON* */

typedef enum
{
  IP_GENEVE_BYPASS_NEXT_DROP,
  IP_GENEVE_BYPASS_NEXT_GENEVE,
  IP_GENEVE_BYPASS_N_NEXT,
} ip_vxan_bypass_next_t;

always_inline uword
ip_geneve_bypass_inline (vlib_main_t * vm,
			 vlib_node_runtime_t * node,
			 vlib_frame_t * frame, u32 is_ip4)
{
  geneve_main_t *vxm = &geneve_main;
  u32 *from, *to_next, n_left_from, n_left_to_next, next_index;
  vlib_node_runtime_t *error_node =
    vlib_node_get_runtime (vm, ip4_input_node.index);
  ip4_address_t addr4;		/* last IPv4 address matching a local VTEP address */
  ip6_address_t addr6;		/* last IPv6 address matching a local VTEP address */

  from = vlib_frame_vector_args (frame);
  n_left_from = frame->n_vectors;
  next_index = node->cached_next_index;

  if (node->flags & VLIB_NODE_FLAG_TRACE)
    ip4_forward_next_trace (vm, node, frame, VLIB_TX);

  if (is_ip4)
    addr4.data_u32 = ~0;
  else
    ip6_address_set_zero (&addr6);

  while (n_left_from > 0)
    {
      vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);

      while (n_left_from >= 4 && n_left_to_next >= 2)
	{
	  vlib_buffer_t *b0, *b1;
	  ip4_header_t *ip40, *ip41;
	  ip6_header_t *ip60, *ip61;
	  udp_header_t *udp0, *udp1;
	  u32 bi0, ip_len0, udp_len0, flags0, next0;
	  u32 bi1, ip_len1, udp_len1, flags1, next1;
	  i32 len_diff0, len_diff1;
	  u8 error0, good_udp0, proto0;
	  u8 error1, good_udp1, proto1;

	  /* Prefetch next iteration. */
	  {
	    vlib_buffer_t *p2, *p3;

	    p2 = vlib_get_buffer (vm, from[2]);
	    p3 = vlib_get_buffer (vm, from[3]);

	    vlib_prefetch_buffer_header (p2, LOAD);
	    vlib_prefetch_buffer_header (p3, LOAD);

	    CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
	    CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
	  }

	  bi0 = to_next[0] = from[0];
	  bi1 = to_next[1] = from[1];
	  from += 2;
	  n_left_from -= 2;
	  to_next += 2;
	  n_left_to_next -= 2;

	  b0 = vlib_get_buffer (vm, bi0);
	  b1 = vlib_get_buffer (vm, bi1);
	  if (is_ip4)
	    {
	      ip40 = vlib_buffer_get_current (b0);
	      ip41 = vlib_buffer_get_current (b1);
	    }
	  else
	    {
	      ip60 = vlib_buffer_get_current (b0);
	      ip61 = vlib_buffer_get_current (b1);
	    }

	  /* Setup packet for next IP feature */
	  vnet_feature_next (vnet_buffer (b0)->sw_if_index[VLIB_RX], &next0,
			     b0);
	  vnet_feature_next (vnet_buffer (b1)->sw_if_index[VLIB_RX], &next1,
			     b1);

	  if (is_ip4)
	    {
	      /* Treat IP frag packets as "experimental" protocol for now
	         until support of IP frag reassembly is implemented */
	      proto0 = ip4_is_fragment (ip40) ? 0xfe : ip40->protocol;
	      proto1 = ip4_is_fragment (ip41) ? 0xfe : ip41->protocol;
	    }
	  else
	    {
	      proto0 = ip60->protocol;
	      proto1 = ip61->protocol;
	    }

	  /* Process packet 0 */
	  if (proto0 != IP_PROTOCOL_UDP)
	    goto exit0;		/* not UDP packet */

	  if (is_ip4)
	    udp0 = ip4_next_header (ip40);
	  else
	    udp0 = ip6_next_header (ip60);

	  if (udp0->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_geneve))
	    goto exit0;		/* not GENEVE packet */

	  /* Validate DIP against VTEPs */
	  if (is_ip4)
	    {
	      if (addr4.as_u32 != ip40->dst_address.as_u32)
		{
		  if (!hash_get (vxm->vtep4, ip40->dst_address.as_u32))
		    goto exit0;	/* no local VTEP for GENEVE packet */
		  addr4 = ip40->dst_address;
		}
	    }
	  else
	    {
	      if (!ip6_address_is_equal (&addr6, &ip60->dst_address))
		{
		  if (!hash_get_mem (vxm->vtep6, &ip60->dst_address))
		    goto exit0;	/* no local VTEP for GENEVE packet */
		  addr6 = ip60->dst_address;
		}
	    }

	  flags0 = b0->flags;
	  good_udp0 = (flags0 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;

	  /* Don't verify UDP checksum for packets with explicit zero checksum. */
	  good_udp0 |= udp0->checksum == 0;

	  /* Verify UDP length */
	  if (is_ip4)
	    ip_len0 = clib_net_to_host_u16 (ip40->length);
	  else
	    ip_len0 = clib_net_to_host_u16 (ip60->payload_length);
	  udp_len0 = clib_net_to_host_u16 (udp0->length);
	  len_diff0 = ip_len0 - udp_len0;

	  /* Verify UDP checksum */
	  if (PREDICT_FALSE (!good_udp0))
	    {
	      if ((flags0 & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED) == 0)
		{
		  if (is_ip4)
		    flags0 = ip4_tcp_udp_validate_checksum (vm, b0);
		  else
		    flags0 = ip6_tcp_udp_icmp_validate_checksum (vm, b0);
		  good_udp0 =
		    (flags0 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;
		}
	    }

	  if (is_ip4)
	    {
	      error0 = good_udp0 ? 0 : IP4_ERROR_UDP_CHECKSUM;
	      error0 = (len_diff0 >= 0) ? error0 : IP4_ERROR_UDP_LENGTH;
	    }
	  else
	    {
	      error0 = good_udp0 ? 0 : IP6_ERROR_UDP_CHECKSUM;
	      error0 = (len_diff0 >= 0) ? error0 : IP6_ERROR_UDP_LENGTH;
	    }

	  next0 = error0 ?
	    IP_GENEVE_BYPASS_NEXT_DROP : IP_GENEVE_BYPASS_NEXT_GENEVE;
	  b0->error = error0 ? error_node->errors[error0] : 0;

	  /* geneve-input node expect current at GENEVE header */
	  if (is_ip4)
	    vlib_buffer_advance (b0,
				 sizeof (ip4_header_t) +
				 sizeof (udp_header_t));
	  else
	    vlib_buffer_advance (b0,
				 sizeof (ip6_header_t) +
				 sizeof (udp_header_t));

	exit0:
	  /* Process packet 1 */
	  if (proto1 != IP_PROTOCOL_UDP)
	    goto exit1;		/* not UDP packet */

	  if (is_ip4)
	    udp1 = ip4_next_header (ip41);
	  else
	    udp1 = ip6_next_header (ip61);

	  if (udp1->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_geneve))
	    goto exit1;		/* not GENEVE packet */

	  /* Validate DIP against VTEPs */
	  if (is_ip4)
	    {
	      if (addr4.as_u32 != ip41->dst_address.as_u32)
		{
		  if (!hash_get (vxm->vtep4, ip41->dst_address.as_u32))
		    goto exit1;	/* no local VTEP for GENEVE packet */
		  addr4 = ip41->dst_address;
		}
	    }
	  else
	    {
	      if (!ip6_address_is_equal (&addr6, &ip61->dst_address))
		{
		  if (!hash_get_mem (vxm->vtep6, &ip61->dst_address))
		    goto exit1;	/* no local VTEP for GENEVE packet */
		  addr6 = ip61->dst_address;
		}
	    }

	  flags1 = b1->flags;
	  good_udp1 = (flags1 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;

	  /* Don't verify UDP checksum for packets with explicit zero checksum. */
	  good_udp1 |= udp1->checksum == 0;

	  /* Verify UDP length */
	  if (is_ip4)
	    ip_len1 = clib_net_to_host_u16 (ip41->length);
	  else
	    ip_len1 = clib_net_to_host_u16 (ip61->payload_length);
	  udp_len1 = clib_net_to_host_u16 (udp1->length);
	  len_diff1 = ip_len1 - udp_len1;

	  /* Verify UDP checksum */
	  if (PREDICT_FALSE (!good_udp1))
	    {
	      if ((flags1 & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED) == 0)
		{
		  if (is_ip4)
		    flags1 = ip4_tcp_udp_validate_checksum (vm, b1);
		  else
		    flags1 = ip6_tcp_udp_icmp_validate_checksum (vm, b1);
		  good_udp1 =
		    (flags1 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;
		}
	    }

	  if (is_ip4)
	    {
	      error1 = good_udp1 ? 0 : IP4_ERROR_UDP_CHECKSUM;
	      error1 = (len_diff1 >= 0) ? error1 : IP4_ERROR_UDP_LENGTH;
	    }
	  else
	    {
	      error1 = good_udp1 ? 0 : IP6_ERROR_UDP_CHECKSUM;
	      error1 = (len_diff1 >= 0) ? error1 : IP6_ERROR_UDP_LENGTH;
	    }

	  next1 = error1 ?
	    IP_GENEVE_BYPASS_NEXT_DROP : IP_GENEVE_BYPASS_NEXT_GENEVE;
	  b1->error = error1 ? error_node->errors[error1] : 0;

	  /* geneve-input node expect current at GENEVE header */
	  if (is_ip4)
	    vlib_buffer_advance (b1,
				 sizeof (ip4_header_t) +
				 sizeof (udp_header_t));
	  else
	    vlib_buffer_advance (b1,
				 sizeof (ip6_header_t) +
				 sizeof (udp_header_t));

	exit1:
	  vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
					   to_next, n_left_to_next,
					   bi0, bi1, next0, next1);
	}

      while (n_left_from > 0 && n_left_to_next > 0)
	{
	  vlib_buffer_t *b0;
	  ip4_header_t *ip40;
	  ip6_header_t *ip60;
	  udp_header_t *udp0;
	  u32 bi0, ip_len0, udp_len0, flags0, next0;
	  i32 len_diff0;
	  u8 error0, good_udp0, proto0;

	  bi0 = to_next[0] = from[0];
	  from += 1;
	  n_left_from -= 1;
	  to_next += 1;
	  n_left_to_next -= 1;

	  b0 = vlib_get_buffer (vm, bi0);
	  if (is_ip4)
	    ip40 = vlib_buffer_get_current (b0);
	  else
	    ip60 = vlib_buffer_get_current (b0);

	  /* Setup packet for next IP feature */
	  vnet_feature_next (vnet_buffer (b0)->sw_if_index[VLIB_RX], &next0,
			     b0);

	  if (is_ip4)
	    /* Treat IP4 frag packets as "experimental" protocol for now
	       until support of IP frag reassembly is implemented */
	    proto0 = ip4_is_fragment (ip40) ? 0xfe : ip40->protocol;
	  else
	    proto0 = ip60->protocol;

	  if (proto0 != IP_PROTOCOL_UDP)
	    goto exit;		/* not UDP packet */

	  if (is_ip4)
	    udp0 = ip4_next_header (ip40);
	  else
	    udp0 = ip6_next_header (ip60);

	  if (udp0->dst_port != clib_host_to_net_u16 (UDP_DST_PORT_geneve))
	    goto exit;		/* not GENEVE packet */

	  /* Validate DIP against VTEPs */
	  if (is_ip4)
	    {
	      if (addr4.as_u32 != ip40->dst_address.as_u32)
		{
		  if (!hash_get (vxm->vtep4, ip40->dst_address.as_u32))
		    goto exit;	/* no local VTEP for GENEVE packet */
		  addr4 = ip40->dst_address;
		}
	    }
	  else
	    {
	      if (!ip6_address_is_equal (&addr6, &ip60->dst_address))
		{
		  if (!hash_get_mem (vxm->vtep6, &ip60->dst_address))
		    goto exit;	/* no local VTEP for GENEVE packet */
		  addr6 = ip60->dst_address;
		}
	    }

	  flags0 = b0->flags;
	  good_udp0 = (flags0 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;

	  /* Don't verify UDP checksum for packets with explicit zero checksum. */
	  good_udp0 |= udp0->checksum == 0;

	  /* Verify UDP length */
	  if (is_ip4)
	    ip_len0 = clib_net_to_host_u16 (ip40->length);
	  else
	    ip_len0 = clib_net_to_host_u16 (ip60->payload_length);
	  udp_len0 = clib_net_to_host_u16 (udp0->length);
	  len_diff0 = ip_len0 - udp_len0;

	  /* Verify UDP checksum */
	  if (PREDICT_FALSE (!good_udp0))
	    {
	      if ((flags0 & VNET_BUFFER_F_L4_CHECKSUM_COMPUTED) == 0)
		{
		  if (is_ip4)
		    flags0 = ip4_tcp_udp_validate_checksum (vm, b0);
		  else
		    flags0 = ip6_tcp_udp_icmp_validate_checksum (vm, b0);
		  good_udp0 =
		    (flags0 & VNET_BUFFER_F_L4_CHECKSUM_CORRECT) != 0;
		}
	    }

	  if (is_ip4)
	    {
	      error0 = good_udp0 ? 0 : IP4_ERROR_UDP_CHECKSUM;
	      error0 = (len_diff0 >= 0) ? error0 : IP4_ERROR_UDP_LENGTH;
	    }
	  else
	    {
	      error0 = good_udp0 ? 0 : IP6_ERROR_UDP_CHECKSUM;
	      error0 = (len_diff0 >= 0) ? error0 : IP6_ERROR_UDP_LENGTH;
	    }

	  next0 = error0 ?
	    IP_GENEVE_BYPASS_NEXT_DROP : IP_GENEVE_BYPASS_NEXT_GENEVE;
	  b0->error = error0 ? error_node->errors[error0] : 0;

	  /* geneve-input node expect current at GENEVE header */
	  if (is_ip4)
	    vlib_buffer_advance (b0,
				 sizeof (ip4_header_t) +
				 sizeof (udp_header_t));
	  else
	    vlib_buffer_advance (b0,
				 sizeof (ip6_header_t) +
				 sizeof (udp_header_t));

	exit:
	  vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
					   to_next, n_left_to_next,
					   bi0, next0);
	}

      vlib_put_next_frame (vm, node, next_index, n_left_to_next);
    }

  return frame->n_vectors;
}

static uword
ip4_geneve_bypass (vlib_main_t * vm,
		   vlib_node_runtime_t * node, vlib_frame_t * frame)
{
  return ip_geneve_bypass_inline (vm, node, frame, /* is_ip4 */ 1);
}

/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip4_geneve_bypass_node) =
{
  .function = ip4_geneve_bypass,.name = "ip4-geneve-bypass",.vector_size =
    sizeof (u32),.n_next_nodes = IP_GENEVE_BYPASS_N_NEXT,.next_nodes =
  {
  [IP_GENEVE_BYPASS_NEXT_DROP] = "error-drop",
      [IP_GENEVE_BYPASS_NEXT_GENEVE] = "geneve4-input",}
,.format_buffer = format_ip4_header,.format_trace =
    format_ip4_forward_next_trace,};

VLIB_NODE_FUNCTION_MULTIARCH (ip4_geneve_bypass_node, ip4_geneve_bypass)
/* Dummy init function to get us linked in. */
     clib_error_t *ip4_geneve_bypass_init (vlib_main_t * vm)
{
  return 0;
}

VLIB_INIT_FUNCTION (ip4_geneve_bypass_init);
/* *INDENT-ON* */

static uword
ip6_geneve_bypass (vlib_main_t * vm,
		   vlib_node_runtime_t * node, vlib_frame_t * frame)
{
  return ip_geneve_bypass_inline (vm, node, frame, /* is_ip4 */ 0);
}

/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_geneve_bypass_node) =
{
  .function = ip6_geneve_bypass,.name = "ip6-geneve-bypass",.vector_size =
    sizeof (u32),.n_next_nodes = IP_GENEVE_BYPASS_N_NEXT,.next_nodes =
  {
  [IP_GENEVE_BYPASS_NEXT_DROP] = "error-drop",
      [IP_GENEVE_BYPASS_NEXT_GENEVE] = "geneve6-input",}
,.format_buffer = format_ip6_header,.format_trace =
    format_ip6_forward_next_trace,};
/* *INDENT-ON* */

VLIB_NODE_FUNCTION_MULTIARCH (ip6_geneve_bypass_node, ip6_geneve_bypass)
/* Dummy init function to get us linked in. */
     clib_error_t *ip6_geneve_bypass_init (vlib_main_t * vm)
{
  return 0;
}

VLIB_INIT_FUNCTION (ip6_geneve_bypass_init);

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