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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/strategy_dpo_ctx.h
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/strategy_dpo_ctx.h')
-rw-r--r--hicn-plugin/src/strategy_dpo_ctx.h197
1 files changed, 0 insertions, 197 deletions
diff --git a/hicn-plugin/src/strategy_dpo_ctx.h b/hicn-plugin/src/strategy_dpo_ctx.h
deleted file mode 100644
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--- a/hicn-plugin/src/strategy_dpo_ctx.h
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@@ -1,197 +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.
- */
-
-#ifndef __HICN_STRATEGY_DPO_CTX_H__
-#define __HICN_STRATEGY_DPO_CTX_H__
-
-#include <vnet/dpo/dpo.h>
-#include <vnet/fib/fib_table.h>
-
-#include "params.h"
-#include "faces/face.h"
-
-/**
- * @file strategy_dpo_ctx.h
- *
- * This file implements the general hICN DPO ctx (shared among all the strategies).
- *
- * An hICN DPO ctx contains the list of next hops, auxiliaries fields to maintain the dpo, map-me
- * specifics (tfib_entry_count and seq), the dpo_type and 64B to let each strategy to store additional
- * information. Each next hop is an hicn_face_id_t that refers to an index for an hICN face. The
- * dpo_type is used to identify the strategy and to retrieve the vft corresponding to the strategy
- * (see strategy.h) and to the dpo ctx (see strategy_dpo_manager.h)
- */
-
-//FIB table for hicn. 0 is the default one used by ip
-#define HICN_FIB_TABLE 10
-
-#define NEXT_HOP_INVALID ~0
-
-#define INIT_SEQ 0
-
-typedef struct __attribute__ ((packed)) hicn_dpo_ctx_s
-{
- CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
- /* 4B*10 = 40B */
- hicn_face_id_t next_hops[HICN_PARAM_FIB_ENTRY_NHOPS_MAX];
- /* 40B + 4B = 44B */
- u32 locks;
- /* 44B + 1B = 45B */
- u8 entry_count;
- /* 45B + 1B = 46B */
- /* Number of TFIB entries (stored at the end of the next_hops array */
- u8 tfib_entry_count;
-
- dpo_type_t dpo_type;
-
- /* 46B + 2B = 48B */
- u8 padding; /* To align to 8B */
-
- /* 48 + 4B = 52; last sequence number */
- u32 seq;
-
- /* 52 + 12 = 64 */
- fib_node_t fib_node;
-
- CLIB_CACHE_LINE_ALIGN_MARK (cacheline1);
-
- fib_node_index_t fib_entry_index;
-
- u32 fib_sibling;
-
- union
- {
- u32 padding_proto;
- fib_protocol_t proto;
- };
-
- u8 data[CLIB_CACHE_LINE_BYTES - 12];
-
-} hicn_dpo_ctx_t;
-
-extern hicn_dpo_ctx_t *hicn_strategy_dpo_ctx_pool;
-
-/**
- * @brief Initialize the hICN dpo ctx
- *
- * @param dpo_ctx Pointer to the hICN dpo ctx to initialize
- * @param next_hop List of netx hops to store in the dpo ctx
- * @param nh_len Number of elements in the list of next hops
- * @param dpo_type Type of dpo. It identifies the strategy.
- */
-always_inline void
-init_dpo_ctx (hicn_dpo_ctx_t * dpo_ctx, const hicn_face_id_t * next_hop,
- int nh_len, dpo_type_t dpo_type, dpo_proto_t proto)
-{
- hicn_face_id_t invalid = NEXT_HOP_INVALID;
-
- dpo_ctx->entry_count = 0;
- dpo_ctx->locks = 0;
-
- dpo_ctx->tfib_entry_count = 0;
-
- dpo_ctx->seq = INIT_SEQ;
- dpo_ctx->dpo_type = dpo_type;
-
- dpo_ctx->proto = proto;
-
- for (int i = 0; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX && i < nh_len; i++)
- {
- dpo_ctx->next_hops[i] = next_hop[i];
- dpo_ctx->entry_count++;
- }
-
-
- for (int i = nh_len; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX; i++)
- {
- dpo_ctx->next_hops[i] = invalid;
- }
-
-}
-
-/**
- * @brief Initialize the pool containing the hICN dpo ctx
- *
- */
-void hicn_strategy_init_dpo_ctx_pool (void);
-
-/**
- * @brief Allocate a new hICN dpo ctx from the pool
- */
-hicn_dpo_ctx_t *hicn_strategy_dpo_ctx_alloc ();
-
-/**
- * @brief Retrieve an existing hICN dpo ctx from the pool
- */
-hicn_dpo_ctx_t *hicn_strategy_dpo_ctx_get (index_t index);
-
-/**
- * @brief Retrieve the index of the hICN dpo ctx
- */
-index_t hicn_strategy_dpo_ctx_get_index (hicn_dpo_ctx_t * cd);
-
-/**
- * @brief Lock the dpo of a strategy ctx
- *
- * @param dpo Identifier of the dpo of the strategy ctx
- */
-void hicn_strategy_dpo_ctx_lock (dpo_id_t * dpo);
-
-/**
- * @brief Unlock the dpo of a strategy ctx
- *
- * @param dpo Identifier of the dpo of the strategy ctx
- */
-void hicn_strategy_dpo_ctx_unlock (dpo_id_t * dpo);
-
-/**
- * @brief Add or update a next hop in the dpo ctx.
- *
- * This function is meant to be used in the control plane and not in the data plane,
- * as it is not optimized for the latter.
- *
- * @param nh Next hop to insert in the dpo ctx
- * @param dpo_ctx Dpo ctx to update with the new or updated next hop
- * @param pos Return the position of the nh that has been added
- * @return HICN_ERROR_NONE if the update or insert was fine,
- * otherwise HICN_ERROR_DPO_CTX_NOT_FOUND
- */
-int
-hicn_strategy_dpo_ctx_add_nh (hicn_face_id_t nh, hicn_dpo_ctx_t * dpo_ctx,
- u8 * pos);
-
-/**
- * @brief Delete a next hop in the dpo ctx.
- *
- * @param face_id Face identifier of the next hop
- * @param dpo_ctx Dpo ctx to update by removing the face
- * @return HICN_ERROR_NONE if the update or insert was fine,
- * otherwise HICN_ERROR_DPO_CTS_NOT_FOUND
- */
-int
-hicn_strategy_dpo_ctx_del_nh (hicn_face_id_t face_id,
- hicn_dpo_ctx_t * dpo_ctx);
-
-
-STATIC_ASSERT (sizeof (hicn_dpo_ctx_t) <= 2 * CLIB_CACHE_LINE_BYTES,
- "sizeof hicn_dpo_ctx_t is greater than 128B");
-
-#endif /* // __HICN_STRATEGY_DPO_CTX_H__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables: eval: (c-set-style "gnu") End:
- */