[HICN-574] Host stack plugin for VPP.

Signed-off-by: Mauro Sardara <msardara@cisco.com>
Change-Id: I8d8fdffef31a7013265d6529c5f52f3d5ec70d18
Signed-off-by: Mauro Sardara <msardara@cisco.com>
Signed-off-by: Mauro <you@example.com>
Signed-off-by: Mauro Sardara <msardara@cisco.com>

1 files changed, 0 insertions, 291 deletions

diff --git a/hicn-plugin/src/interest_hitcs_node.c b/hicn-plugin/src/interest_hitcs_node.c
deleted file mode 100644
index f569fa897..000000000
--- a/hicn-plugin/src/interest_hitcs_node.c
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * Copyright (c) 2017-2020 Cisco 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 <vnet/ip/ip6_packet.h>
-#include <vppinfra/string.h>
-
-#include "interest_hitcs.h"
-#include "mgmt.h"
-#include "parser.h"
-#include "data_fwd.h"
-#include "infra.h"
-#include "state.h"
-#include "error.h"
-
-/* packet trace format function */
-static u8 *hicn_interest_hitcs_format_trace (u8 * s, va_list * args);
-
-
-/* Stats string values */
-static char *hicn_interest_hitcs_error_strings[] = {
-#define _(sym, string) string,
-  foreach_hicnfwd_error
-#undef _
-};
-
-vlib_node_registration_t hicn_interest_hitcs_node;
-
-always_inline void drop_packet (u32 * next0);
-
-always_inline void
-clone_from_cs (vlib_main_t * vm, u32 * bi0_cs, vlib_buffer_t * dest, u8 isv6)
-{
-  /* Retrieve the buffer to clone */
-  vlib_buffer_t *cs_buf = vlib_get_buffer (vm, *bi0_cs);
-  hicn_buffer_t *hicnb = hicn_get_buffer (cs_buf);
-  word buffer_advance = CLIB_CACHE_LINE_BYTES * 2;
-  if (hicnb->flags & HICN_BUFFER_FLAGS_PKT_LESS_TWO_CL)
-    {
-      clib_memcpy_fast (vlib_buffer_get_current (dest),
-			vlib_buffer_get_current (cs_buf),
-			cs_buf->current_length);
-      clib_memcpy_fast (dest->opaque2, cs_buf->opaque2,
-			sizeof (cs_buf->opaque2));
-
-      dest->current_length = cs_buf->current_length;
-      dest->total_length_not_including_first_buffer = 0;
-    }
-  else
-    {
-      vlib_buffer_advance (cs_buf, -buffer_advance);
-      if (PREDICT_FALSE (cs_buf->ref_count == 255))
-	{
-	  vlib_buffer_t *cs_buf2 = vlib_buffer_copy (vm, cs_buf);
-	  vlib_buffer_advance (cs_buf, buffer_advance);
-	  *bi0_cs = vlib_get_buffer_index (vm, cs_buf2);
-	  cs_buf->ref_count--;
-	  cs_buf = cs_buf2;
-	}
-
-      clib_memcpy_fast (vlib_buffer_get_current (dest),
-			vlib_buffer_get_current (cs_buf), buffer_advance);
-      clib_memcpy_fast (dest->opaque2, cs_buf->opaque2,
-			sizeof (cs_buf->opaque2));
-      dest->current_length = buffer_advance;
-      vlib_buffer_advance (cs_buf, buffer_advance);
-      vlib_buffer_attach_clone (vm, dest, cs_buf);
-    }
-}
-
-static uword
-hicn_interest_hitcs_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
-			     vlib_frame_t * frame)
-{
-  u32 n_left_from, *from, *to_next;
-  hicn_interest_hitcs_next_t next_index;
-  hicn_interest_hitcs_runtime_t *rt;
-  vl_api_hicn_api_node_stats_get_reply_t stats = { 0 };
-  f64 tnow;
-  int ret;
-
-  rt = vlib_node_get_runtime_data (vm, hicn_interest_hitcs_node.index);
-
-  if (PREDICT_FALSE (rt->pitcs == NULL))
-    {
-      rt->pitcs = &hicn_main.pitcs;
-    }
-  from = vlib_frame_vector_args (frame);
-  n_left_from = frame->n_vectors;
-  next_index = node->cached_next_index;
-
-  /* Capture time in vpp terms */
-  tnow = vlib_time_now (vm);
-  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 > 0 && n_left_to_next > 0)
-	{
-	  vlib_buffer_t *b0;
-	  u8 isv6;
-	  u8 *nameptr;
-	  u16 namelen;
-	  u32 bi0;
-	  u32 next0 = HICN_INTEREST_HITCS_NEXT_ERROR_DROP;
-	  hicn_name_t name;
-	  hicn_header_t *hicn0;
-	  hicn_buffer_t *hicnb0;
-	  hicn_hash_node_t *node0;
-	  hicn_pcs_entry_t *pitp;
-	  hicn_hash_entry_t *hash_entry0;
-	  const hicn_strategy_vft_t *strategy_vft0;
-	  const hicn_dpo_vft_t *dpo_vft0;
-	  u8 dpo_ctx_id0;
-
-	  /* Prefetch for next iteration. */
-	  if (n_left_from > 1)
-	    {
-	      vlib_buffer_t *b1;
-	      b1 = vlib_get_buffer (vm, from[1]);
-	      CLIB_PREFETCH (b1, 2 * CLIB_CACHE_LINE_BYTES, STORE);
-	      CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, STORE);
-	    }
-
-	  /* Dequeue a packet buffer */
-	  bi0 = from[0];
-	  from += 1;
-	  n_left_from -= 1;
-	  to_next[0] = bi0;
-	  to_next += 1;
-	  n_left_to_next -= 1;
-
-	  b0 = vlib_get_buffer (vm, bi0);
-
-	  /* Get hicn buffer and state */
-	  hicnb0 = hicn_get_buffer (b0);
-	  hicn_get_internal_state (hicnb0, rt->pitcs, &node0, &strategy_vft0,
-				   &dpo_vft0, &dpo_ctx_id0, &hash_entry0);
-
-	  ret = hicn_interest_parse_pkt (b0, &name, &namelen, &hicn0, &isv6);
-	  nameptr = (u8 *) (&name);
-	  pitp = hicn_pit_get_data (node0);
-
-	  dpo_id_t hicn_dpo_id0 =
-	    { dpo_vft0->hicn_dpo_get_type (), 0, 0, dpo_ctx_id0 };
-
-	  if (PREDICT_FALSE
-	      (ret != HICN_ERROR_NONE ||
-	       !hicn_node_compare (nameptr, namelen, node0)))
-	    {
-	      /* Remove lock from the entry */
-	      hicn_pcs_remove_lock (rt->pitcs, &pitp, &node0, vm, hash_entry0,
-				    dpo_vft0, &hicn_dpo_id0);
-	      drop_packet (&next0);
-	      goto end_processing;
-	    }
-	  if ((tnow > pitp->shared.expire_time))
-	    {
-	      /* Delete and clean up expired CS entry */
-	      hicn_pcs_delete (rt->pitcs, &pitp, &node0, vm, hash_entry0,
-			       dpo_vft0, &hicn_dpo_id0);
-	      stats.cs_expired_count++;
-	      /* Forward interest to the strategy node */
-	      next0 = HICN_INTEREST_HITCS_NEXT_STRATEGY;
-	    }
-	  else
-	    {
-	      if (PREDICT_TRUE
-		  (!(hash_entry0->he_flags & HICN_HASH_ENTRY_FLAG_DELETED)))
-		hicn_pcs_cs_update (vm, rt->pitcs, pitp, pitp, node0);
-
-	      /*
-	       * Retrieve the incoming iface and forward
-	       * the data through it
-	       */
-	      next0 = isv6 ? HICN_INTEREST_HITCS_NEXT_IFACE6_OUT :
-                HICN_INTEREST_HITCS_NEXT_IFACE4_OUT;
-              vnet_buffer (b0)->ip.adj_index[VLIB_TX] = hicnb0->face_id;
-
-	      clone_from_cs (vm, &pitp->u.cs.cs_pkt_buf, b0, isv6);
-
-	      stats.pkts_from_cache_count++;
-	      stats.pkts_data_count++;
-	      /* Remove lock from the entry */
-	      hicn_pcs_remove_lock (rt->pitcs, &pitp, &node0, vm, hash_entry0,
-				    dpo_vft0, &hicn_dpo_id0);
-	    }
-
-	end_processing:
-
-	  /* Maybe trace */
-	  if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
-			     (b0->flags & VLIB_BUFFER_IS_TRACED)))
-	    {
-	      hicn_interest_hitcs_trace_t *t =
-		vlib_add_trace (vm, node, b0, sizeof (*t));
-	      t->pkt_type = HICN_PKT_TYPE_INTEREST;
-	      t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];
-	      t->next_index = next0;
-	    }
-	  /* Incr packet counter */
-	  stats.pkts_processed += 1;
-
-	  /*
-	   * Verify speculative enqueue, maybe switch current
-	   * next frame
-	   */
-	  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);
-    }
-
-  u32 pit_int_count = hicn_pit_get_int_count (rt->pitcs);
-
-  vlib_node_increment_counter (vm, hicn_interest_hitcs_node.index,
-			       HICNFWD_ERROR_CACHED,
-			       stats.pkts_from_cache_count);
-
-  vlib_node_increment_counter (vm, hicn_interest_hitcs_node.index,
-			       HICNFWD_ERROR_DATAS, stats.pkts_data_count);
-
-  update_node_counter (vm, hicn_interest_hitcs_node.index,
-		       HICNFWD_ERROR_INT_COUNT, pit_int_count);
-
-  return (frame->n_vectors);
-}
-
-always_inline void
-drop_packet (u32 * next0)
-{
-  *next0 = HICN_INTEREST_HITCS_NEXT_ERROR_DROP;
-}
-
-/* packet trace format function */
-static u8 *
-hicn_interest_hitcs_format_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 *);
-  hicn_interest_hitcs_trace_t *t =
-    va_arg (*args, hicn_interest_hitcs_trace_t *);
-
-  s = format (s, "INTEREST-HITCS: pkt: %d, sw_if_index %d, next index %d",
-	      (int) t->pkt_type, t->sw_if_index, t->next_index);
-  return (s);
-}
-
-/*
- * Node registration for the interest forwarder node
- */
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE(hicn_interest_hitcs_node) =
-{
-  .function = hicn_interest_hitcs_node_fn,
-  .name = "hicn-interest-hitcs",
-  .vector_size = sizeof(u32),
-  .runtime_data_bytes = sizeof(hicn_interest_hitcs_runtime_t),
-  .format_trace = hicn_interest_hitcs_format_trace,
-  .type = VLIB_NODE_TYPE_INTERNAL,
-  .n_errors = ARRAY_LEN(hicn_interest_hitcs_error_strings),
-  .error_strings = hicn_interest_hitcs_error_strings,
-  .n_next_nodes = HICN_INTEREST_HITCS_N_NEXT,
-  /* edit / add dispositions here */
-  .next_nodes =
-  {
-    [HICN_INTEREST_HITCS_NEXT_STRATEGY] = "hicn-strategy",
-    [HICN_INTEREST_HITCS_NEXT_IFACE4_OUT] = "hicn4-iface-output",
-    [HICN_INTEREST_HITCS_NEXT_IFACE6_OUT] = "hicn6-iface-output",
-    [HICN_INTEREST_HITCS_NEXT_ERROR_DROP] = "error-drop"
-  },
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables: eval: (c-set-style "gnu") End:
- */