eb987d3a09
Object sizes must evenly divide alignment requests, or vice versa. Otherwise, only the first object will be aligned as requested. Three choices: add CLIB_CACHE_LINE_ALIGN_MARK(align_me) at the end of structures, manually pad to an even divisor or multiple of the alignment request, or use plain vectors/pools. static assert for enforcement. Change-Id: I41aa6ff1a58267301d32aaf4b9cd24678ac1c147 Signed-off-by: Dave Barach <dbarach@cisco.com>
116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/*
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* Copyright (c) 2016 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __BIER_DISP_TABLE_H__
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#define __BIER_DISP_TABLE_H__
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#include <vnet/ip/ip.h>
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#include <vnet/adj/adj.h>
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#include <vnet/dpo/replicate_dpo.h>
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#include <vnet/bier/bier_types.h>
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#include <vnet/bier/bier_disp_entry.h>
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/**
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* @brief
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* A protocol Independent IP multicast FIB table
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*/
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typedef struct bier_disp_table_t_
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{
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/**
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* Required for pool_get_aligned
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*/
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CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
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/**
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* number of locks on the table
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*/
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u16 bdt_locks;
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/**
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* Table ID (hash key) for this FIB.
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*/
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u32 bdt_table_id;
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/**
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* The lookup DB based on sender BP. Value is the index of the
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* BIER disp object.
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*/
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index_t bdt_db[BIER_BP_MAX];
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} bier_disp_table_t;
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/**
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* @brief
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* Format the description/name of the table
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*/
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extern u8* format_bier_disp_table(u8* s, va_list *ap);
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extern void bier_disp_table_entry_path_add(u32 table_id,
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bier_bp_t src,
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bier_hdr_proto_id_t payload_proto,
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const fib_route_path_t *rpath);
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extern void bier_disp_table_entry_path_remove(u32 table_id,
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bier_bp_t src,
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bier_hdr_proto_id_t payload_proto,
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const fib_route_path_t *paths);
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extern index_t bier_disp_table_find(u32 table_id);
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extern index_t bier_disp_table_add_or_lock(u32 table_id);
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extern void bier_disp_table_unlock_w_table_id(u32 table_id);
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extern void bier_disp_table_unlock(index_t bdti);
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extern void bier_disp_table_lock(index_t bdti);
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extern void bier_disp_table_contribute_forwarding(index_t bdti,
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dpo_id_t *dpo);
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/**
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* Types and functions to walk all the entries in one BIER Table
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*/
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typedef void (*bier_disp_table_walk_fn_t)(const bier_disp_table_t *bdt,
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const bier_disp_entry_t *bde,
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u16 bp,
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void *ctx);
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extern void bier_disp_table_walk(u32 table_id,
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bier_disp_table_walk_fn_t fn,
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void *ctx);
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/**
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* @brief
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* Get a pointer to a FIB table
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*/
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extern bier_disp_table_t *bier_disp_table_pool;
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static inline bier_disp_table_t *
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bier_disp_table_get (index_t bdti)
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{
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return (pool_elt_at_index(bier_disp_table_pool, bdti));
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}
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static inline index_t
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bier_disp_table_lookup (index_t bdti,
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bier_hdr_src_id_t src)
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{
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bier_disp_table_t *bdt;
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bdt = bier_disp_table_get(bdti);
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return (bdt->bdt_db[src]);
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}
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#endif
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