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>
62 lines
1.5 KiB
C
62 lines
1.5 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 __CLASSIFY_DPO_H__
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#define __CLASSIFY_DPO_H__
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#include <vnet/vnet.h>
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#include <vnet/mpls/packet.h>
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#include <vnet/dpo/dpo.h>
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/**
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* A representation of an MPLS label for imposition in the data-path
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*/
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typedef struct classify_dpo_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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dpo_proto_t cd_proto;
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u32 cd_table_index;
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/**
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* Number of locks/users of the label
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*/
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u16 cd_locks;
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} classify_dpo_t;
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extern index_t classify_dpo_create(dpo_proto_t proto,
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u32 classify_table_index);
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extern u8* format_classify_dpo(u8 *s, va_list *args);
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/*
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* Encapsulation violation for fast data-path access
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*/
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extern classify_dpo_t *classify_dpo_pool;
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static inline classify_dpo_t *
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classify_dpo_get (index_t index)
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{
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return (pool_elt_at_index(classify_dpo_pool, index));
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}
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extern void classify_dpo_module_init(void);
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#endif
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