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/*
* Copyright (c) 2015-2017, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FDR_ENGINE_DESCRIPTION_H
#define FDR_ENGINE_DESCRIPTION_H
#include "engine_description.h"
#include <map>
#include <memory>
#include <vector>
namespace ue2 {
struct FDREngineDef {
u32 id;
u32 schemeWidth;
u32 numBuckets;
u64a cpu_features;
};
class FDREngineDescription : public EngineDescription {
public:
u32 schemeWidth;
u32 stride;
u32 bits;
u32 getSchemeWidth() const { return schemeWidth; }
u32 getBucketWidth(BucketIndex b) const;
SchemeBitIndex getSchemeBit(BucketIndex b, PositionInBucket p) const;
u32 getNumTableEntries() const { return 1 << bits; }
u32 getTabSizeBytes() const {
return schemeWidth / 8 * getNumTableEntries();
}
explicit FDREngineDescription(const FDREngineDef &def);
u32 getDefaultFloodSuffixLength() const override;
};
std::unique_ptr<FDREngineDescription>
chooseEngine(const target_t &target, const std::vector<hwlmLiteral> &vl,
bool make_small);
std::unique_ptr<FDREngineDescription> getFdrDescription(u32 engineID);
void getFdrDescriptions(std::vector<FDREngineDescription> *out);
} // namespace ue2
#endif
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