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authorMauro Sardara <msardara@cisco.com>2020-03-24 17:34:14 +0000
committerMauro Sardara <msardara@cisco.com>2020-09-14 17:31:15 +0000
commit88509fe353767cbde707c3e3b1f29392957819f3 (patch)
treecccd51bac7966cd3138c525e8075d90341184a66 /hicn-plugin/src/interest_hitpit_node.c
parentd875ae92a7fa1eaab3bc2616aeeedfc64a81fea4 (diff)
[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>
Diffstat (limited to 'hicn-plugin/src/interest_hitpit_node.c')
-rw-r--r--hicn-plugin/src/interest_hitpit_node.c308
1 files changed, 0 insertions, 308 deletions
diff --git a/hicn-plugin/src/interest_hitpit_node.c b/hicn-plugin/src/interest_hitpit_node.c
deleted file mode 100644
index 9ebf183c5..000000000
--- a/hicn-plugin/src/interest_hitpit_node.c
+++ /dev/null
@@ -1,308 +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 "interest_hitpit.h"
-#include "mgmt.h"
-#include "parser.h"
-#include "data_fwd.h"
-#include "infra.h"
-#include "strategy.h"
-#include "strategy_dpo_ctx.h"
-#include "strategy_dpo_manager.h"
-#include "state.h"
-#include "error.h"
-#include "face_db.h"
-
-/* packet trace format function */
-static u8 *hicn_interest_hitpit_format_trace (u8 * s, va_list * args);
-
-/* Stats string values */
-static char *hicn_interest_hitpit_error_strings[] = {
-#define _(sym, string) string,
- foreach_hicnfwd_error
-#undef _
-};
-
-vlib_node_registration_t hicn_interest_hitpit_node;
-
-always_inline void drop_packet (u32 * next0);
-
-/*
- * hICN forwarder node for interests hitting the PIT
- */
-static uword
-hicn_interest_hitpit_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{
- u32 n_left_from, *from, *to_next;
- hicn_interest_hitpit_next_t next_index;
- hicn_interest_hitpit_runtime_t *rt;
- vl_api_hicn_api_node_stats_get_reply_t stats = { 0 };
- f64 tnow;
-
- rt = vlib_node_get_runtime_data (vm, hicn_interest_hitpit_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_HITPIT_NEXT_ERROR_DROP;
- hicn_name_t name;
- hicn_header_t *hicn0;
- hicn_hash_node_t *node0;
- const hicn_strategy_vft_t *strategy_vft0;
- const hicn_dpo_vft_t *dpo_vft0;
- hicn_pcs_entry_t *pitp;
- u8 dpo_ctx_id0;
- u8 found = 0;
- int nh_idx;
- hicn_face_id_t outface;
- hicn_hash_entry_t *hash_entry0;
- hicn_buffer_t *hicnb0;
- int ret;
-
- /* Prefetch for next iteration. */
- if (n_left_from > 1)
- {
- vlib_buffer_t *b1;
- b1 = vlib_get_buffer (vm, from[1]);
- CLIB_PREFETCH (b1, CLIB_CACHE_LINE_BYTES, LOAD);
- 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 };
-
- /*
- * Check if the hit is instead a collision in the
- * hash table. Unlikely to happen.
- */
- if (PREDICT_FALSE
- (ret != HICN_ERROR_NONE
- || !hicn_node_compare (nameptr, namelen, node0)))
- {
- stats.interests_hash_collision++;
- /* 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 the entry is expired, remove it no matter of
- * the possible cases.
- */
- if (tnow > pitp->shared.expire_time)
- {
- strategy_vft0->hicn_on_interest_timeout (dpo_ctx_id0);
- hicn_pcs_delete (rt->pitcs, &pitp, &node0, vm, hash_entry0,
- dpo_vft0, &hicn_dpo_id0);
- stats.pit_expired_count++;
- next0 = HICN_INTEREST_HITPIT_NEXT_STRATEGY;
- }
- else
- {
- if ((hash_entry0->he_flags & HICN_HASH_ENTRY_FLAG_CS_ENTRY))
- {
- next0 = HICN_INTEREST_HITPIT_NEXT_INTEREST_HITCS;
- }
- else
- {
- /*
- * Distinguish between aggregation or
- * retransmission
- */
-
- found =
- hicn_face_search (hicnb0->face_id,
- &(pitp->u.pit.faces));
-
- if (found)
- {
- strategy_vft0->hicn_select_next_hop (dpo_ctx_id0,
- &nh_idx, &outface);
- /* Retransmission */
- /*
- * Prepare the packet for the
- * forwarding
- */
- next0 = isv6 ? HICN_INTEREST_HITPIT_NEXT_FACE6_OUTPUT :
- HICN_INTEREST_HITPIT_NEXT_FACE4_OUTPUT;
- vnet_buffer (b0)->ip.adj_index[VLIB_TX] =
- outface;
-
- /*
- * Update the egress face in
- * the PIT
- */
- pitp->u.pit.pe_txnh = nh_idx;
- stats.interests_retx++;
- }
- else
- {
- hicn_face_db_add_face (hicnb0->face_id,
- &pitp->u.pit.faces);
-
- /* Aggregation */
- drop_packet (&next0);
- stats.interests_aggregated++;
- }
- /* 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_hitpit_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_hitpit_node.index,
- HICNFWD_ERROR_PROCESSED, stats.pkts_processed);
- vlib_node_increment_counter (vm, hicn_interest_hitpit_node.index,
- HICNFWD_ERROR_INTEREST_AGG,
- stats.interests_aggregated);
- vlib_node_increment_counter (vm, hicn_interest_hitpit_node.index,
- HICNFWD_ERROR_INT_RETRANS,
- stats.interests_retx);
- vlib_node_increment_counter (vm, hicn_interest_hitpit_node.index,
- HICNFWD_ERROR_PIT_EXPIRED,
- stats.pit_expired_count);
- vlib_node_increment_counter (vm, hicn_interest_hitpit_node.index,
- HICNFWD_ERROR_HASH_COLL_HASHTB_COUNT,
- stats.interests_hash_collision);
-
- update_node_counter (vm, hicn_interest_hitpit_node.index,
- HICNFWD_ERROR_INT_COUNT, pit_int_count);
-
- return (frame->n_vectors);
-}
-
-/* packet trace format function */
-static u8 *
-hicn_interest_hitpit_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_hitpit_trace_t *t =
- va_arg (*args, hicn_interest_hitpit_trace_t *);
-
- s = format (s, "INTEREST-HITPIT: pkt: %d, sw_if_index %d, next index %d",
- (int) t->pkt_type, t->sw_if_index, t->next_index);
- return (s);
-}
-
-void
-drop_packet (u32 * next0)
-{
- *next0 = HICN_INTEREST_HITPIT_NEXT_ERROR_DROP;
-}
-
-/*
- * Node registration for the interest forwarder node
- */
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE(hicn_interest_hitpit_node) =
-{
- .function = hicn_interest_hitpit_node_fn,
- .name = "hicn-interest-hitpit",
- .vector_size = sizeof(u32),
- .runtime_data_bytes = sizeof(hicn_interest_hitpit_runtime_t),
- .format_trace = hicn_interest_hitpit_format_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN(hicn_interest_hitpit_error_strings),
- .error_strings = hicn_interest_hitpit_error_strings,
- .n_next_nodes = HICN_INTEREST_HITPIT_N_NEXT,
- /* edit / add dispositions here */
- .next_nodes =
- {
- [HICN_INTEREST_HITPIT_NEXT_INTEREST_HITCS] = "hicn-interest-hitcs",
- [HICN_INTEREST_HITPIT_NEXT_STRATEGY] = "hicn-strategy",
- [HICN_INTEREST_HITPIT_NEXT_FACE4_OUTPUT] = "hicn4-face-output",
- [HICN_INTEREST_HITPIT_NEXT_FACE6_OUTPUT] = "hicn6-face-output",
- [HICN_INTEREST_HITPIT_NEXT_ERROR_DROP] = "error-drop",
- },
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables: eval: (c-set-style "gnu") End:
- */