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size_t | bitIngressPrePacketPaddingSize () const |
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| virtual unsigned | bitMaxClotPos () const =0 |
| | The maximum offset+length a CLOT can have, in bits.
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| virtual unsigned | bitMinClotPos (gress_t) const =0 |
| | The minimum offset a CLOT can have, in bits.
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size_t | bitPhase0Size () const |
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| size_t | bitResubmitSize () const |
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| size_t | bitResubmitTagSize () const |
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virtual const nw_bitrange | bitScratchRegisterRange (const MatchRegister ®) const =0 |
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| size_t | byteIngressIntrinsicMetadataSize () const |
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| virtual size_t | byteIngressPrePacketPaddingSize () const =0 |
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| nw_byterange | byteInputBufferMetadataRange () const |
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int | byteInputBufferSize () const |
| | The size of input buffer, in bytes.
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| virtual unsigned | byteInterClotGap () const =0 |
| | The minimum number of bytes required between consecutive CLOTs.
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| virtual unsigned | byteMaxClotSize () const =0 |
| | The maximum number of bytes a CLOT can hold.
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| virtual size_t | bytePhase0Size () const =0 |
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size_t | byteResubmitSize () const |
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size_t | byteResubmitTagSize () const |
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virtual bool | byteScratchRegisterRangeValid (nw_byterange range) const =0 |
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| size_t | byteTotalIngressMetadataSize () const |
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| virtual double | clkFreq () const =0 |
| | Clock frequency.
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virtual unsigned | deparserChunkGroupSize () const =0 |
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virtual unsigned | deparserChunkSize () const =0 |
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| virtual const std::map< unsigned, unsigned > & | extractorSpec () const =0 |
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| virtual unsigned | lineRate () const =0 |
| | Max line rate per-port (Gbps)
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| virtual const std::vector< MatchRegister > | matchRegisters () const =0 |
| | Specifies the available match registers.
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| virtual unsigned | maxClotsLivePerGress () const =0 |
| | The maximum number of CLOTs that can be live for each packet in each gress.
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| virtual unsigned | maxClotsPerState () const =0 |
| | The maximum number of CLOTs that can be generated in each parser state.
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| virtual size_t | maxParseDepth (gress_t) const |
| | The maximum parse depth for the given gress.
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| virtual const std::vector< std::string > & | mdpValidVecFields () const =0 |
| | Unused.
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| virtual const std::unordered_set< std::string > & | mdpValidVecFieldsSet () const =0 |
| | Unused.
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| virtual size_t | minParseDepth (gress_t) const |
| | The minimum parse depth for the given gress.
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virtual unsigned | numClotsPerDeparserGroup () const =0 |
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| virtual unsigned | numClotsPerGress () const =0 |
| | The number of CLOTs available for allocation in each gress.
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virtual unsigned | numDeparserChecksumUnits () const =0 |
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virtual unsigned | numDeparserChunkGroups () const =0 |
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virtual unsigned | numDeparserConstantBytes () const =0 |
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virtual unsigned | numDeparserInvertChecksumUnits () const =0 |
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| virtual int | numParsers () const =0 |
| | Total parsers supported ingress/egress.
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| virtual int | numTcamRows () const =0 |
| | Total TCAM Rows supported ingress/egress.
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| virtual bool | parserAllExtractorsSupportSingleByte () const =0 |
| | Do all extractors support single-byte extracts?
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| virtual const std::vector< MatchRegister > | scratchRegisters () const =0 |
| | Specifies the available scracth registers.
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Midend passes
Midend passes related to deparsing:
- BFN::CheckHeaderAlignment (in BFN::PadFlexibleField) - Ensures that headers are byte aligned.
- DesugarVarbitExtract - Generates emit statements for variable-length headers.
- BFN::ParserEnforceDepthReq - Adds emit statements for padding headers to ensure the minimum parse depth.
- P4::SimplifyNestedIf - Simplifies nested if statements into simple if statements that the deparser can process.
Backend passes
Backend passes related to deparsing:
- AddDeparserMetadata - Adds deparser metadata parameters.
- AddMetadataPOV - Adds POV bits for metadata used by the deparser (Tofino 2+). Tofino 1 uses the valid bit associated with each PHV; Tofino 2+ use POV bits instead.
- BFN::AsmOutput - Outputs the deparser assembler. Uses DeparserAsmOutput and the passes it invokes.
- CollectClotInfo - Collects information for generating CLOTs.
- DeparserCopyOpt - Optimize copy assigned fields prior to deparsing.
- ExtractChecksum - Replaces EmitField with EmitChecksum emits in deparser. Also creates tables and optimizes conditions and fields that the checksum uses. Invoked from BFN::BackendConverter.
- BFN::ExtractDeparser - Convert IR::BFN::TnaDeparser objects to IR::BFN::Deparser objects. The pass generates emit and digest objects as part of this process.
- GreedyClotAllocator - CLOT allocation. Enforces deparser CLOT rules during allocation.
- InsertParserClotChecksums - Identifies CLOT fields used in deparser checksums to allow the checksum to be calculated in the parser (Tofino 2).
- LowerParser - Replaces high-level parser and deparser IR that operate on fields with low-level parser and deparser IR that operate on PHV containers.
- ResetInvalidatedChecksumHeaders - Reset fields that are used in deparser checksum operations and that are invalidated in the MAU (Tofino 1).
1.12.0