DPDK::ConvertStatementToDpdk Class Reference

Inheritance diagram for DPDK::ConvertStatementToDpdk:

Public Member Functions
	ConvertStatementToDpdk (P4::ReferenceMap *refmap, P4::TypeMap *typemap, DpdkProgramStructure *structure)
	ConvertStatementToDpdk (P4::ReferenceMap *refmap, P4::TypeMap *typemap, DpdkProgramStructure *structure, IR::Type_Struct *metadataStruct)
void	add_instr (const IR::DpdkAsmStatement *s)
cstring	append_parser_name (const IR::P4Parser *p, cstring)
void	branchingInstructionGeneration (cstring true_label, cstring false_label, const IR::Expression *expr)
IR::IndexedVector< IR::DpdkAsmStatement > &	get_instr ()
IR::IndexedVector< IR::DpdkAsmStatement >	getInstructions ()
bool	handleConstSwitch (const IR::SwitchStatement *a)
bool	preorder (const IR::AssignmentStatement *a) override
bool	preorder (const IR::IfStatement *a) override
bool	preorder (const IR::MethodCallStatement *a) override
bool	preorder (const IR::SwitchStatement *a) override
void	process_logical_operation (const IR::Expression *, const IR::Operation_Binary *)
void	process_relation_operation (const IR::Expression *, const IR::Operation_Relation *)
void	set_parent (const IR::Node *p)
void	set_parser (const IR::P4Parser *p)

Member Function Documentation

preorder()

bool DPDK::ConvertStatementToDpdk::preorder ( const IR::MethodCallStatement * a )

override

Extract instruction of DPDK target expects the second argument (size of the varbit field of the header) to be the number of bytes to be extracted while in P4 it is the number of bits to be extracted. We need to compute the size in bytes.

Warning

If the value is not aligned to 8 bits, the remainder after division is dropped during runtime (this is a target limitation).