From a23197980e40d4d9414bcfaf59005a1dc2a89251 Mon Sep 17 00:00:00 2001 From: sreejith Date: Wed, 29 Mar 2017 01:15:02 -0400 Subject: Added vpp intial source code from master branch 17.01.1 Change-Id: I81bdace6f330825a1746a853766779dfb24765fd Signed-off-by: sreejith --- vpp/vnet/vnet/dpo/load_balance_map.h | 79 ++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 vpp/vnet/vnet/dpo/load_balance_map.h (limited to 'vpp/vnet/vnet/dpo/load_balance_map.h') diff --git a/vpp/vnet/vnet/dpo/load_balance_map.h b/vpp/vnet/vnet/dpo/load_balance_map.h new file mode 100644 index 00000000..454bf4b3 --- /dev/null +++ b/vpp/vnet/vnet/dpo/load_balance_map.h @@ -0,0 +1,79 @@ +/* + * Copyright (c) 2016 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. + */ +/** + * @brief + */ + +#ifndef __LOAD_BALANCE_MAP_H__ +#define __LOAD_BALANCE_MAP_H__ + +#include +#include +#include + +struct load_balance_map_path_t_; + +/** + */ +typedef struct load_balance_map_t_ { + /** + * The buckets of the map that provide the index to index translation. + * In the first cacheline. + */ + u16 *lbm_buckets; + + /** + * the vector of paths this MAP represents + */ + struct load_balance_map_path_t_ *lbm_paths; + + /** + * the sum of the normalised weights. cache for convenience + */ + u32 lbm_sum_of_norm_weights; + + /** + * Number of locks. Maps are shared by a large number of recrusvie fib_entry_ts + */ + u32 lbm_locks; +} load_balance_map_t; + +extern index_t load_balance_map_add_or_lock(u32 n_buckets, + u32 sum_of_weights, + const load_balance_path_t *norm_paths); + +extern void load_balance_map_lock(index_t lmbi); +extern void load_balance_map_unlock(index_t lbmi); + +extern void load_balance_map_path_state_change(fib_node_index_t path_index); + +extern u8* format_load_balance_map(u8 *s, va_list ap); +extern void load_balance_map_show_mem(void); + +/** + * The encapsulation breakages are for fast DP access + */ +extern load_balance_map_t *load_balance_map_pool; + +static inline load_balance_map_t* +load_balance_map_get (index_t lbmi) +{ + return (pool_elt_at_index(load_balance_map_pool, lbmi)); +} + + +extern void load_balance_map_module_init(void); + +#endif -- cgit 1.2.3-korg