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-rw-r--r--hicn-plugin/src/data_pcslookup_node.c52
-rw-r--r--hicn-plugin/src/pcs.h28
2 files changed, 45 insertions, 35 deletions
diff --git a/hicn-plugin/src/data_pcslookup_node.c b/hicn-plugin/src/data_pcslookup_node.c
index fdf855e57..1ae36202f 100644
--- a/hicn-plugin/src/data_pcslookup_node.c
+++ b/hicn-plugin/src/data_pcslookup_node.c
@@ -14,12 +14,12 @@
*/
#include "data_pcslookup.h"
+#include "infra.h"
#include "mgmt.h"
#include "parser.h"
-#include "infra.h"
+#include "state.h"
#include "strategy.h"
#include "strategy_dpo_manager.h"
-#include "state.h"
/* Stats string values */
static char *hicn_data_pcslookup_error_strings[] = {
@@ -37,10 +37,9 @@ vlib_node_registration_t hicn_data_pcslookup_node;
* hICN node for handling data. It performs a lookup in the PIT.
*/
static uword
-hicn_data_pcslookup_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+hicn_data_pcslookup_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
-
u32 n_left_from, *from, *to_next;
hicn_data_pcslookup_next_t next_index;
hicn_data_pcslookup_runtime_t *rt;
@@ -87,7 +86,8 @@ hicn_data_pcslookup_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
{
vlib_buffer_t *b1;
b1 = vlib_get_buffer (vm, from[1]);
- //Prefetch two cache lines-- 128 byte-- so that we load the hicn_buffer_t as well
+ // Prefetch two cache lines-- 128 byte-- so that we load the
+ // hicn_buffer_t as well
CLIB_PREFETCH (b1, 2 * CLIB_CACHE_LINE_BYTES, STORE);
CLIB_PREFETCH (b1->data, CLIB_CACHE_LINE_BYTES, LOAD);
}
@@ -99,10 +99,9 @@ hicn_data_pcslookup_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
to_next += 1;
n_left_to_next -= 1;
-
b0 = vlib_get_buffer (vm, bi0);
hb0 = hicn_get_buffer (b0);
- next0 = HICN_DATA_PCSLOOKUP_NEXT_ERROR_DROP;
+ next0 = HICN_DATA_PCSLOOKUP_NEXT_ERROR_DROP;
/* Incr packet counter */
stats.pkts_processed += 1;
@@ -111,26 +110,24 @@ hicn_data_pcslookup_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
nameptr = (u8 *) (&name);
if (PREDICT_TRUE (ret0 == HICN_ERROR_NONE &&
- hicn_hashtb_fullhash (nameptr, namelen,
- &name_hash) == HICN_ERROR_NONE))
+ hicn_hashtb_fullhash (nameptr, namelen,
+ &name_hash) ==
+ HICN_ERROR_NONE))
{
int res =
hicn_hashtb_lookup_node (rt->pitcs->pcs_table, nameptr,
namelen, name_hash,
- !(hb0->flags &
- HICN_BUFFER_FLAGS_FACE_IS_APP)
- /* take lock */ ,
+ 1 /*is_data. Do not take lock if hit CS */ ,
&node_id0, &dpo_ctx_id0, &vft_id0,
- &is_cs0,
- &hash_entry_id, &bucket_id,
+ &is_cs0, &hash_entry_id, &bucket_id,
&bucket_is_overflown);
stats.pkts_data_count += 1;
#if HICN_FEATURE_CS
- if ((res == HICN_ERROR_HASHTB_HASH_NOT_FOUND
- || (res == HICN_ERROR_NONE && is_cs0))
- && ((hb0->flags & HICN_BUFFER_FLAGS_FACE_IS_APP)))
+ if ((res == HICN_ERROR_HASHTB_HASH_NOT_FOUND ||
+ (res == HICN_ERROR_NONE && is_cs0)) &&
+ ((hb0->flags & HICN_BUFFER_FLAGS_FACE_IS_APP)))
{
next0 = HICN_DATA_PCSLOOKUP_NEXT_STORE_DATA;
}
@@ -169,9 +166,8 @@ hicn_data_pcslookup_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
* Fix in case of a wrong speculation. Needed to
* clone the data in the right frame
*/
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, next0);
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
+ n_left_to_next, bi0, next0);
/* Maybe trace */
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
@@ -217,24 +213,22 @@ hicn_data_pcslookup_format_trace (u8 * s, va_list * args)
return (s);
}
-
/*
* Node registration for the data forwarder node
*/
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (hicn_data_pcslookup_node) =
+VLIB_REGISTER_NODE(hicn_data_pcslookup_node) =
{
.function = hicn_data_pcslookup_node_fn,
.name = "hicn-data-pcslookup",
- .vector_size = sizeof (u32),
- .runtime_data_bytes = sizeof (hicn_data_pcslookup_runtime_t),
+ .vector_size = sizeof(u32),
+ .runtime_data_bytes = sizeof(hicn_data_pcslookup_runtime_t),
.format_trace = hicn_data_pcslookup_format_trace,
- .type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN (hicn_data_pcslookup_error_strings),
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN(hicn_data_pcslookup_error_strings),
.error_strings = hicn_data_pcslookup_error_strings,
.n_next_nodes = HICN_DATA_PCSLOOKUP_N_NEXT,
- .next_nodes =
- {
+ .next_nodes = {
[HICN_DATA_PCSLOOKUP_NEXT_V4_LOOKUP] = "ip4-lookup",
[HICN_DATA_PCSLOOKUP_NEXT_V6_LOOKUP] = "ip6-lookup",
[HICN_DATA_PCSLOOKUP_NEXT_STORE_DATA] = "hicn-data-push",
diff --git a/hicn-plugin/src/pcs.h b/hicn-plugin/src/pcs.h
index c7e8a4b59..d9c48954e 100644
--- a/hicn-plugin/src/pcs.h
+++ b/hicn-plugin/src/pcs.h
@@ -499,8 +499,16 @@ hicn_pcs_cs_update (vlib_main_t * vm, hicn_pit_cs_t * pitcs,
policy_vft->hicn_cs_delete_get (pitcs, policy_state,
&node, &pcs_entry, &hash_entry);
- hicn_pcs_cs_delete (vm, pitcs, &pcs_entry, &node, hash_entry, NULL,
- NULL);
+ /*
+ * We don't have to decrease the lock (therefore we cannot
+ * use hicn_pcs_cs_delete function)
+ */
+ policy_vft->hicn_cs_dequeue (pitcs, node, pcs_entry, policy_state);
+
+ hicn_cs_delete_trimmed (pitcs, &pcs_entry, hash_entry, &node, vm);
+
+ /* Update the global CS counter */
+ pitcs->pcs_cs_count--;
}
}
else
@@ -541,14 +549,14 @@ hicn_pcs_cs_delete (vlib_main_t * vm, hicn_pit_cs_t * pitcs,
}
/* A data could have been inserted in the CS through a push. In this case locks == 0 */
- if (hash_entry->locks == 0 || hash_entry->locks == 1)
+ hash_entry->locks--;
+ if (hash_entry->locks == 0)
{
hicn_pcs_delete_internal
(pitcs, pcs_entryp, hash_entry, nodep, vm, dpo_vft, hicn_dpo_id);
}
else
{
- hash_entry->locks--;
hash_entry->he_flags |= HICN_HASH_ENTRY_FLAG_DELETED;
}
}
@@ -603,8 +611,16 @@ hicn_pcs_cs_insert (vlib_main_t * vm, hicn_pit_cs_t * pitcs,
policy_vft->hicn_cs_delete_get (pitcs, policy_state,
&node, &pcs_entry, &hash_entry);
- hicn_pcs_cs_delete (vm, pitcs, &pcs_entry, &node, hash_entry, NULL,
- NULL);
+ /*
+ * We don't have to decrease the lock (therefore we cannot
+ * use hicn_pcs_cs_delete function)
+ */
+ policy_vft->hicn_cs_dequeue (pitcs, node, pcs_entry, policy_state);
+
+ hicn_cs_delete_trimmed (pitcs, &pcs_entry, hash_entry, &node, vm);
+
+ /* Update the global CS counter */
+ pitcs->pcs_cs_count--;
}
}
return ret;