From 20a773677230374ffa2d5d140f7d46032fb7bc9d Mon Sep 17 00:00:00 2001 From: Mauro Sardara Date: Fri, 18 Sep 2020 17:39:03 +0200 Subject: Revert to [HICN-638] Check if systemd is running before enabling hicn-light service Signed-off-by: Mauro Sardara Change-Id: I1810d96e001a4e6e097e1efa331b682af750925d --- hicn-plugin/src/state.h | 115 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 hicn-plugin/src/state.h (limited to 'hicn-plugin/src/state.h') diff --git a/hicn-plugin/src/state.h b/hicn-plugin/src/state.h new file mode 100644 index 000000000..37003d0ae --- /dev/null +++ b/hicn-plugin/src/state.h @@ -0,0 +1,115 @@ +/* + * 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. + */ + +#ifndef __HICN_STATE__ +#define __HICN_STATE__ + +#include +#include + +#include "hicn.h" +#include "pcs.h" +#include "hashtb.h" +#include "strategy.h" +#include "strategy_dpo_ctx.h" +#include "strategy_dpo_manager.h" + +/** + * @file plugin_state + * + * Helper functions to hicn state (hash node, hash entry, strategy vft, dpo vft and dpo context id) + * + */ + +//TODO exploit this state to prefetch hash nodes and entries. + +/** + * @brief Retrieve the hicn state + * + * @param hicnb hicn buffer used to retrieve the hicn state + * @param pitcs pointer to PIT/CS + * @param node node in the hash table referring to the buffer + * @param strategy_vft return value pointing to the strategy vft corresponding to the buffer + * @param dpo_vft return value pointing to the dpo vft corresponding to the buffer + * @param dpo_ctx_id return value pointing to the dpo context id corresponding to the buffer + * @param hash_entry entry in the hash table referring to the buffer + */ +always_inline void +hicn_get_internal_state (hicn_buffer_t * hicnb, hicn_pit_cs_t * pitcs, + hicn_hash_node_t ** node, + const hicn_strategy_vft_t ** strategy_vft, + const hicn_dpo_vft_t ** dpo_vft, u8 * dpo_ctx_id, + hicn_hash_entry_t ** hash_entry) +{ + *node = pool_elt_at_index (pitcs->pcs_table->ht_nodes, hicnb->node_id); + *strategy_vft = hicn_dpo_get_strategy_vft (hicnb->vft_id); + *dpo_vft = hicn_dpo_get_vft (hicnb->vft_id); + *dpo_ctx_id = hicnb->dpo_ctx_id; + + hicn_hash_bucket_t *bucket; + if (hicnb->hash_bucket_flags & HICN_HASH_NODE_OVERFLOW_BUCKET) + bucket = + pool_elt_at_index (pitcs->pcs_table->ht_overflow_buckets, + hicnb->bucket_id); + else + bucket = + (hicn_hash_bucket_t *) (pitcs->pcs_table->ht_buckets + + hicnb->bucket_id); + + *hash_entry = &(bucket->hb_entries[hicnb->hash_entry_id]); +} + +/* + * This function set the PCS entry index, the dpo index and the vft index in + * the opaque2 buffer. In this way, the interest-hitpit and interest-hitcs + * nodes can prefetch the corresponding state (PIT entry, dpo_ctx and the + * strategy vft + */ +/** + * @brief Store the hicn state in the hicn buffer + * + * @param b vlib buffer holding the hICN packet + * @param name_hash hash of the hICN name + * @param node_id id of the node in the hash table referring to the buffer + * @param dpo_ctx_id id of the dpo context id corresponding to the buffer + * @param vft_id id of the strategy vft corresponding to the buffer + * @param hash_entry_id id of the entry in the hash table referring to the buffer + * @param bucket_id id of the hasth table bucket that holds the hash entry + * @param bucket_is_overflow 1 if the bucket is from the ht_overflow_buckets pool + * 0 if the bucket is from the ht_buckets pool + */ +always_inline void +hicn_store_internal_state (vlib_buffer_t * b, u64 name_hash, u32 node_id, + u8 dpo_ctx_id, u8 vft_id, u8 hash_entry_id, + u32 bucket_id, u8 bucket_is_overflow) +{ + hicn_buffer_t *hicnb = hicn_get_buffer (b); + hicnb->name_hash = name_hash; + hicnb->node_id = node_id; + hicnb->dpo_ctx_id = dpo_ctx_id; + hicnb->vft_id = vft_id; + hicnb->hash_entry_id = hash_entry_id; + hicnb->bucket_id = bucket_id; + hicnb->hash_bucket_flags = + HICN_HASH_NODE_OVERFLOW_BUCKET * bucket_is_overflow; +} + +#endif /* // __HICN_STATE__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: eval: (c-set-style "gnu") End: + */ -- cgit 1.2.3-korg