gem5  v20.1.0.0
Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | Friends | List of all members
EtherTapBase Class Referenceabstract

#include <ethertap.hh>

Inheritance diagram for EtherTapBase:
SimObject EventManager Serializable Drainable Stats::Group EtherTapStub

Public Types

typedef EtherTapBaseParams Params
 
- Public Types inherited from SimObject
typedef SimObjectParams Params
 

Public Member Functions

 EtherTapBase (const Params *p)
 
virtual ~EtherTapBase ()
 
const Paramsparams () const
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
PortgetPort (const std::string &if_name, PortID idx=InvalidPortID) override
 Get a port with a given name and index. More...
 
bool recvSimulated (EthPacketPtr packet)
 
void sendSimulated (void *data, size_t len)
 
- Public Member Functions inherited from SimObject
const Paramsparams () const
 
 SimObject (const Params *_params)
 
virtual ~SimObject ()
 
virtual const std::string name () const
 
virtual void init ()
 init() is called after all C++ SimObjects have been created and all ports are connected. More...
 
virtual void loadState (CheckpointIn &cp)
 loadState() is called on each SimObject when restoring from a checkpoint. More...
 
virtual void initState ()
 initState() is called on each SimObject when not restoring from a checkpoint. More...
 
virtual void regProbePoints ()
 Register probe points for this object. More...
 
virtual void regProbeListeners ()
 Register probe listeners for this object. More...
 
ProbeManagergetProbeManager ()
 Get the probe manager for this object. More...
 
virtual void startup ()
 startup() is the final initialization call before simulation. More...
 
DrainState drain () override
 Provide a default implementation of the drain interface for objects that don't need draining. More...
 
virtual void memWriteback ()
 Write back dirty buffers to memory using functional writes. More...
 
virtual void memInvalidate ()
 Invalidate the contents of memory buffers. More...
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
- Public Member Functions inherited from EventManager
EventQueueeventQueue () const
 
void schedule (Event &event, Tick when)
 
void deschedule (Event &event)
 
void reschedule (Event &event, Tick when, bool always=false)
 
void schedule (Event *event, Tick when)
 
void deschedule (Event *event)
 
void reschedule (Event *event, Tick when, bool always=false)
 
void wakeupEventQueue (Tick when=(Tick) -1)
 This function is not needed by the usual gem5 event loop but may be necessary in derived EventQueues which host gem5 on other schedulers. More...
 
void setCurTick (Tick newVal)
 
 EventManager (EventManager &em)
 Event manger manages events in the event queue. More...
 
 EventManager (EventManager *em)
 
 EventManager (EventQueue *eq)
 
- Public Member Functions inherited from Serializable
 Serializable ()
 
virtual ~Serializable ()
 
void serializeSection (CheckpointOut &cp, const char *name) const
 Serialize an object into a new section. More...
 
void serializeSection (CheckpointOut &cp, const std::string &name) const
 
void unserializeSection (CheckpointIn &cp, const char *name)
 Unserialize an a child object. More...
 
void unserializeSection (CheckpointIn &cp, const std::string &name)
 
- Public Member Functions inherited from Drainable
DrainState drainState () const
 Return the current drain state of an object. More...
 
virtual void notifyFork ()
 Notify a child process of a fork. More...
 
- Public Member Functions inherited from Stats::Group
 Group (Group *parent, const char *name=nullptr)
 Construct a new statistics group. More...
 
virtual ~Group ()
 
virtual void regStats ()
 Callback to set stat parameters. More...
 
virtual void resetStats ()
 Callback to reset stats. More...
 
virtual void preDumpStats ()
 Callback before stats are dumped. More...
 
void addStat (Stats::Info *info)
 Register a stat with this group. More...
 
const std::map< std::string, Group * > & getStatGroups () const
 Get all child groups associated with this object. More...
 
const std::vector< Info * > & getStats () const
 Get all stats associated with this object. More...
 
void addStatGroup (const char *name, Group *block)
 Add a stat block as a child of this block. More...
 
const InforesolveStat (std::string name) const
 Resolve a stat by its name within this group. More...
 
 Group ()=delete
 
 Group (const Group &)=delete
 
Groupoperator= (const Group &)=delete
 

Protected Member Functions

void pollFd (int fd)
 
void stopPolling ()
 
virtual void recvReal (int revent)=0
 
virtual bool sendReal (const void *data, size_t len)=0
 
void retransmit ()
 
- Protected Member Functions inherited from Drainable
 Drainable ()
 
virtual ~Drainable ()
 
virtual void drainResume ()
 Resume execution after a successful drain. More...
 
void signalDrainDone () const
 Signal that an object is drained. More...
 

Protected Attributes

uint8_t * buffer
 
int buflen
 
EtherDumpdump
 
TapEventevent
 
EtherTapIntinterface
 
std::queue< EthPacketPtrpacketBuffer
 
EventFunctionWrapper txEvent
 
- Protected Attributes inherited from SimObject
const SimObjectParams * _params
 Cached copy of the object parameters. More...
 
- Protected Attributes inherited from EventManager
EventQueueeventq
 A pointer to this object's event queue. More...
 

Friends

class TapEvent
 

Additional Inherited Members

- Static Public Member Functions inherited from SimObject
static void serializeAll (CheckpointOut &cp)
 Serialize all SimObjects in the system. More...
 
static SimObjectfind (const char *name)
 Find the SimObject with the given name and return a pointer to it. More...
 
- Static Public Member Functions inherited from Serializable
static const std::string & currentSection ()
 Gets the fully-qualified name of the active section. More...
 
static void serializeAll (const std::string &cpt_dir)
 Serializes all the SimObjects. More...
 
static void unserializeGlobals (CheckpointIn &cp)
 

Detailed Description

Definition at line 56 of file ethertap.hh.

Member Typedef Documentation

◆ Params

typedef EtherTapBaseParams EtherTapBase::Params

Definition at line 59 of file ethertap.hh.

Constructor & Destructor Documentation

◆ EtherTapBase()

EtherTapBase::EtherTapBase ( const Params p)

Definition at line 92 of file ethertap.cc.

References retransmit().

◆ ~EtherTapBase()

EtherTapBase::~EtherTapBase ( )
virtual

Definition at line 101 of file ethertap.cc.

References buffer, event, and interface.

Member Function Documentation

◆ getPort()

Port & EtherTapBase::getPort ( const std::string &  if_name,
PortID  idx = InvalidPortID 
)
overridevirtual

Get a port with a given name and index.

This is used at binding time and returns a reference to a protocol-agnostic port.

gem5 has a request and response port interface. All memory objects are connected together via ports. These ports provide a rigid interface between these memory objects. These ports implement three different memory system modes: timing, atomic, and functional. The most important mode is the timing mode and here timing mode is used for conducting cycle-level timing experiments. The other modes are only used in special circumstances and should not be used to conduct cycle-level timing experiments. The other modes are only used in special circumstances. These ports allow SimObjects to communicate with each other.

Parameters
if_namePort name
idxIndex in the case of a VectorPort
Returns
A reference to the given port

Reimplemented from SimObject.

Definition at line 161 of file ethertap.cc.

References SimObject::getPort(), and interface.

◆ params()

const Params* EtherTapBase::params ( ) const
inline

Definition at line 64 of file ethertap.hh.

References SimObject::_params.

◆ pollFd()

void EtherTapBase::pollFd ( int  fd)
protected

Definition at line 144 of file ethertap.cc.

References event, ArmISA::fd, pollQueue, PollQueue::schedule(), and TapEvent.

Referenced by EtherTapStub::attach().

◆ recvReal()

virtual void EtherTapBase::recvReal ( int  revent)
protectedpure virtual

Implemented in EtherTapStub.

Referenced by TapEvent::process().

◆ recvSimulated()

bool EtherTapBase::recvSimulated ( EthPacketPtr  packet)

Definition at line 169 of file ethertap.cc.

References DDUMP, DPRINTF, EtherDump::dump(), dump, interface, EtherInt::recvDone(), and sendReal().

Referenced by EtherTapInt::recvPacket().

◆ retransmit()

void EtherTapBase::retransmit ( )
protected

◆ sendReal()

virtual bool EtherTapBase::sendReal ( const void *  data,
size_t  len 
)
protectedpure virtual

Implemented in EtherTapStub.

Referenced by recvSimulated().

◆ sendSimulated()

void EtherTapBase::sendSimulated ( void *  data,
size_t  len 
)

◆ serialize()

void EtherTapBase::serialize ( CheckpointOut cp) const
overridevirtual

Serialize an object.

Output an object's state into the current checkpoint section.

Parameters
cpCheckpoint state

Implements Serializable.

Reimplemented in EtherTapStub.

Definition at line 109 of file ethertap.cc.

References buffer, buflen, event, SERIALIZE_ARRAY, and SERIALIZE_SCALAR.

Referenced by EtherTapStub::serialize().

◆ stopPolling()

void EtherTapBase::stopPolling ( )
protected

Definition at line 152 of file ethertap.cc.

References event.

Referenced by EtherTapStub::detach().

◆ unserialize()

void EtherTapBase::unserialize ( CheckpointIn cp)
overridevirtual

Unserialize an object.

Read an object's state from the current checkpoint section.

Parameters
cpCheckpoint state

Implements Serializable.

Reimplemented in EtherTapStub.

Definition at line 126 of file ethertap.cc.

References buffer, buflen, event, pollQueue, PollEvent::queued(), PollQueue::schedule(), TapEvent, UNSERIALIZE_ARRAY, and UNSERIALIZE_SCALAR.

Referenced by EtherTapStub::unserialize().

Friends And Related Function Documentation

◆ TapEvent

friend class TapEvent
friend

Definition at line 83 of file ethertap.hh.

Referenced by pollFd(), and unserialize().

Member Data Documentation

◆ buffer

uint8_t* EtherTapBase::buffer
protected

Definition at line 73 of file ethertap.hh.

Referenced by EtherTapStub::recvReal(), serialize(), unserialize(), and ~EtherTapBase().

◆ buflen

int EtherTapBase::buflen
protected

Definition at line 74 of file ethertap.hh.

Referenced by EtherTapStub::recvReal(), serialize(), and unserialize().

◆ dump

EtherDump* EtherTapBase::dump
protected

Definition at line 76 of file ethertap.hh.

Referenced by recvSimulated(), retransmit(), and sendSimulated().

◆ event

TapEvent* EtherTapBase::event
protected

Definition at line 84 of file ethertap.hh.

Referenced by pollFd(), serialize(), stopPolling(), unserialize(), and ~EtherTapBase().

◆ interface

EtherTapInt* EtherTapBase::interface
protected

Definition at line 98 of file ethertap.hh.

Referenced by getPort(), recvSimulated(), retransmit(), sendSimulated(), and ~EtherTapBase().

◆ packetBuffer

std::queue<EthPacketPtr> EtherTapBase::packetBuffer
protected

Definition at line 108 of file ethertap.hh.

Referenced by retransmit(), and sendSimulated().

◆ txEvent

EventFunctionWrapper EtherTapBase::txEvent
protected

Definition at line 110 of file ethertap.hh.

Referenced by retransmit(), and sendSimulated().


The documentation for this class was generated from the following files:

Generated on Wed Sep 30 2020 14:02:24 for gem5 by doxygen 1.8.17