P4C
The P4 Compiler
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DPDK::ConvertToDpdkProgram Class Reference
Inheritance diagram for DPDK::ConvertToDpdkProgram:
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Public Member Functions

 ConvertToDpdkProgram (P4::ReferenceMap *refmap, P4::TypeMap *typemap, DpdkProgramStructure *structure, DpdkOptions &options)
 
const IR::DpdkAsmProgram * create (IR::P4Program *prog)
 
IR::IndexedVector< IR::DpdkAsmStatement > create_pna_postamble ()
 
IR::IndexedVector< IR::DpdkAsmStatement > create_pna_preamble ()
 
IR::IndexedVector< IR::DpdkAsmStatement > create_psa_postamble ()
 
IR::IndexedVector< IR::DpdkAsmStatement > create_psa_preamble ()
 
const IR::DpdkAsmProgram * getDpdkProgram ()
 
const IR::Node * preorder (IR::P4Program *p) override
 
IR::IndexedVector< IR::DpdkStructType > UpdateHeaderMetadata (IR::P4Program *prog, IR::Type_Struct *metadata)
 
- Public Member Functions inherited from Transform
const IR::Node * apply_visitor (const IR::Node *, const char *name=0) override
 
profile_t init_apply (const IR::Node *root) override
 
virtual void loop_revisit (const IR::Node *)
 
virtual const IR::Node * postorder (IR::Node *n)
 
virtual const IR::Node * preorder (IR::Node *n)
 
void prune ()
 
virtual void revisit (const IR::Node *, const IR::Node *)
 
void revisit_visited ()
 
bool visit_in_progress (const IR::Node *) const
 
void visitAgain () const override
 
void visitOnce () const override
 
- Public Member Functions inherited from Visitor
virtual bool check_global (cstring)
 
virtual void clear_globals ()
 
virtual Visitor * clone () const
 
virtual void end_apply ()
 
virtual void end_apply (const IR::Node *root)
 
virtual void erase_global (cstring)
 
template<class T >
const T * findContext () const
 
template<class T >
const T * findContext (const Context *&c) const
 
template<class T >
const T * findOrigCtxt () const
 
template<class T >
const T * findOrigCtxt (const Context *&c) const
 
virtual Visitor & flow_clone ()
 
virtual void flow_merge (Visitor &)
 
virtual void flow_merge_global_from (cstring)
 
virtual void flow_merge_global_to (cstring)
 
const Context * getChildContext () const
 
int getChildrenVisited () const
 
const Context * getContext () const
 
int getContextDepth () const
 
const IR::Node * getCurrentNode () const
 
template<class T >
const T * getCurrentNode () const
 
const IR::Node * getOriginal () const
 
template<class T >
const T * getOriginal () const
 
template<class T >
const T * getParent () const
 
virtual bool has_flow_joins () const
 
profile_t init_apply (const IR::Node *root, const Context *parent_context)
 
bool isInContext (const IR::Node *n) const
 
virtual const char * name () const
 
template<class T >
void parallel_visit (const IR::Vector< T > &v, const char *name, int cidx)
 
template<class T >
void parallel_visit (const IR::Vector< T > &v, const char *name=0)
 
template<class T >
void parallel_visit (IR::Vector< T > &v, const char *name, int cidx)
 
template<class T >
void parallel_visit (IR::Vector< T > &v, const char *name=0)
 
void print_context () const
 
const Visitor & setCalledBy (const Visitor *visitor)
 
void setName (const char *name)
 
void visit (const IR::Node &n, const char *name, int cidx)
 
void visit (const IR::Node &n, const char *name=0)
 
void visit (const IR::Node *&n, const char *name, int cidx)
 
void visit (const IR::Node *&n, const char *name=0)
 
void visit (const IR::Node *const &n, const char *name, int cidx)
 
void visit (const IR::Node *const &n, const char *name=0)
 
void visit (IR::Node &n, const char *name, int cidx)
 
void visit (IR::Node &n, const char *name=0)
 
void visit (IR::Node *&, const char *=0, int=0)
 
template<class T , typename = typename std::enable_if<std::is_base_of<Util::IHasSourceInfo, T>::value>::type, class... Args>
void warn (const int kind, const char *format, const T &node, Args... args)
 The const ref variant of the above.
 
template<class T , typename = typename std::enable_if<std::is_base_of<Util::IHasSourceInfo, T>::value>::type, class... Args>
void warn (const int kind, const char *format, const T *node, Args... args)
 
bool warning_enabled (int warning_kind) const
 

Additional Inherited Members

- Public Types inherited from Visitor
typedef Visitor_Context Context
 
- Static Public Member Functions inherited from Visitor
static cstring demangle (const char *)
 
static bool warning_enabled (const Visitor *visitor, int warning_kind)
 
- Public Attributes inherited from Visitor
const Visitor * called_by = nullptr
 
cstring internalName
 
SplitFlowVisit_base *& split_link
 
SplitFlowVisit_base * split_link_mem = nullptr
 
- Protected Member Functions inherited from Transform
const IR::Node * transform_child (const IR::Node *child)
 
- Protected Member Functions inherited from Visitor
virtual void init_join_flows (const IR::Node *)
 
virtual bool join_flows (const IR::Node *)
 
virtual void post_join_flows (const IR::Node *, const IR::Node *)
 
void visit_children (const IR::Node *, std::function< void()> fn)
 
- Protected Attributes inherited from Visitor
bool dontForwardChildrenBeforePreorder = false
 
bool joinFlows = false
 
bool visitDagOnce = true
 

Member Function Documentation

◆ create()

const IR::DpdkAsmProgram * DPDK::ConvertToDpdkProgram::create ( IR::P4Program *  prog)

UpdateHeaderMetadata returns IndexedVector filled with following 3 types of structs:

  • main metadata structure (whose name is stored in structure->local_metadata_type)
  • structures for action arguments created internally by compiler (stored in structure->args_struct_map)
  • main structure which holds all headers (whose name is stored in structure->header_type)

Only the first one (main metadata structure) can be present in structure->metadata_types map. Main metadata structure is added to the map when it contains metadata whose type is a structure. It happens during InspectDpdkProgram pass which visits IR::Parameter nodes in InspectDpdkProgram::preorder(const IR::Parameter* param). During that pass the visitor only visits the parameter in the statement from architecture. Structures internally created for action arguments are not visited in that pass, so they are not added to structure->metadata_types. As they are created internally by compiler they are not used as types of fields in main metadata structure neither. Main headers structure contains only headers so it is not added to structure->metadata_types map neither. InspectDpdkProgram adds there only the structures which contain some field with structure type.