diff options
Diffstat (limited to 'hicn-plugin/src/strategy_dpo_ctx.h')
| -rw-r--r-- | hicn-plugin/src/strategy_dpo_ctx.h | 53 |
1 files changed, 26 insertions, 27 deletions
diff --git a/hicn-plugin/src/strategy_dpo_ctx.h b/hicn-plugin/src/strategy_dpo_ctx.h index 214ed88ad..ae642a350 100644 --- a/hicn-plugin/src/strategy_dpo_ctx.h +++ b/hicn-plugin/src/strategy_dpo_ctx.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2017-2020 Cisco and/or its affiliates. + * Copyright (c) 2021 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: @@ -25,16 +25,19 @@ /** * @file strategy_dpo_ctx.h * - * This file implements the general hICN DPO ctx (shared among all the strategies). + * 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) + * 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 +// FIB table for hicn. 0 is the default one used by ip #define HICN_FIB_TABLE 10 #define NEXT_HOP_INVALID ~0 @@ -57,7 +60,7 @@ typedef struct __attribute__ ((packed)) hicn_dpo_ctx_s dpo_type_t dpo_type; /* 46B + 2B = 48B */ - u8 padding; /* To align to 8B */ + u8 padding; /* To align to 8B */ /* 48 + 4B = 52; last sequence number */ u32 seq; @@ -92,10 +95,11 @@ extern hicn_dpo_ctx_t *hicn_strategy_dpo_ctx_pool; * @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, +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; + int i = 0; dpo_ctx->entry_count = 0; dpo_ctx->locks = 0; @@ -105,20 +109,18 @@ init_dpo_ctx (hicn_dpo_ctx_t * dpo_ctx, const hicn_face_id_t * next_hop, dpo_ctx->seq = INIT_SEQ; dpo_ctx->dpo_type = dpo_type; - dpo_ctx->proto = proto; + dpo_ctx->proto = (fib_protocol_t) proto; - for (int i = 0; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX && i < nh_len; i++) + for (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++) + for (; i < HICN_PARAM_FIB_ENTRY_NHOPS_MAX; i++) { dpo_ctx->next_hops[i] = invalid; } - } /** @@ -140,27 +142,27 @@ 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); +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); +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); +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. + * 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 @@ -168,9 +170,8 @@ void hicn_strategy_dpo_ctx_unlock (dpo_id_t * dpo); * @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); +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. @@ -180,10 +181,8 @@ hicn_strategy_dpo_ctx_add_nh (hicn_face_id_t nh, hicn_dpo_ctx_t * dpo_ctx, * @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); - +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"); |