Inheritance diagram for IGbE::TxDescCache:

Public Member Functions
	TxDescCache (IGbE *i, std::string n, int s)

unsigned	getPacketSize (EthPacketPtr p)
	Tell the cache to DMA a packet from main memory into its buffer and return the size the of the packet to reserve space in tx fifo. More...

void	getPacketData (EthPacketPtr p)

void	processContextDesc ()

unsigned	descInBlock (unsigned num_desc)
	Return the number of dsecriptors in a cache block for threshold operations. More...

bool	packetAvailable ()
	Ask if the packet has been transfered so the state machine can give it to the fifo. More...

bool	packetWaiting ()
	Ask if we are still waiting for the packet to be transfered. More...

bool	packetMultiDesc ()
	Ask if this packet is composed of multiple descriptors so even if we've got data, we need to wait for more before we can send it out. More...

void	pktComplete ()
	Called by event when dma to write packet is completed. More...

void	headerComplete ()

void	completionWriteback (Addr a, bool enabled)

bool	hasOutstandingEvents () override

void	nullCallback ()

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

Public Member Functions inherited from IGbE::DescCache< iGbReg::TxDesc >
	DescCache (IGbE *i, const std::string n, int s)

virtual	~DescCache ()

std::string	name ()

void	areaChanged ()
	If the address/len/head change when we've got descriptors that are dirty that is very bad. More...

void	writeback (Addr aMask)

void	writeback1 ()

void	fetchDescriptors ()
	Fetch a chunk of descriptors into the descriptor cache. More...

void	fetchDescriptors1 ()

void	fetchComplete ()
	Called by event when dma to read descriptors is completed. More...

void	wbComplete ()
	Called by event when dma to writeback descriptors is completed. More...

unsigned	descLeft () const

unsigned	descUsed () const

unsigned	descUnused () const

void	reset ()

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

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 Attributes
EventFunctionWrapper	pktEvent

EventFunctionWrapper	headerEvent

EventFunctionWrapper	nullEvent

Public Attributes inherited from IGbE::DescCache< iGbReg::TxDesc >
std::string	annSmFetch
	Annotate sm. More...

std::string	annSmWb

std::string	annUnusedDescQ

std::string	annUsedCacheQ

std::string	annUsedDescQ

std::string	annUnusedCacheQ

std::string	annDescQ

EventFunctionWrapper	wbDelayEvent

EventFunctionWrapper	fetchDelayEvent

EventFunctionWrapper	fetchEvent

EventFunctionWrapper	wbEvent

Protected Member Functions
Addr	descBase () const override

long	descHead () const override

long	descTail () const override

long	descLen () const override

void	updateHead (long h) override

void	enableSm () override

void	actionAfterWb () override

void	fetchAfterWb () override

Protected Member Functions inherited from IGbE::DescCache< iGbReg::TxDesc >
Addr	pciToDma (Addr a)
	Shortcut for DMA address translation. More...

Protected Attributes
bool	pktDone

bool	isTcp

bool	pktWaiting

bool	pktMultiDesc

Addr	completionAddress

bool	completionEnabled

uint32_t	descEnd

bool	useTso

Addr	tsoHeaderLen

Addr	tsoMss

Addr	tsoTotalLen

Addr	tsoUsedLen

Addr	tsoPrevSeq

Addr	tsoPktPayloadBytes

bool	tsoLoadedHeader

bool	tsoPktHasHeader

uint8_t	tsoHeader [256]

Addr	tsoDescBytesUsed

Addr	tsoCopyBytes

int	tsoPkts

Protected Attributes inherited from IGbE::DescCache< iGbReg::TxDesc >
CacheType	usedCache

CacheType	unusedCache

iGbReg::TxDesc *	fetchBuf

iGbReg::TxDesc *	wbBuf

IGbE *	igbe

std::string	_name

int	cachePnt

int	size

int	curFetching

int	wbOut

bool	moreToWb

Addr	wbAlignment

EthPacketPtr	pktPtr
	The packet that is currently being dmad to memory if any. More...

Additional Inherited Members
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)

static void	unserializeGlobals (CheckpointIn &cp)

Protected Types inherited from IGbE::DescCache< iGbReg::TxDesc >
typedef std::deque< iGbReg::TxDesc *>	CacheType

Detailed Description

Definition at line 397 of file i8254xGBe.hh.

Constructor & Destructor Documentation

◆ TxDescCache()

IGbE::TxDescCache::TxDescCache	(	IGbE *	i,
		std::string	n,
		int	s
	)

Definition at line 1553 of file i8254xGBe.cc.

References IGbE::DescCache< iGbReg::TxDesc >::annDescQ, IGbE::DescCache< iGbReg::TxDesc >::annSmFetch, IGbE::DescCache< iGbReg::TxDesc >::annSmWb, IGbE::DescCache< iGbReg::TxDesc >::annUnusedCacheQ, IGbE::DescCache< iGbReg::TxDesc >::annUnusedDescQ, IGbE::DescCache< iGbReg::TxDesc >::annUsedCacheQ, IGbE::DescCache< iGbReg::TxDesc >::annUsedDescQ, headerComplete(), headerEvent, ArmISA::n, nullCallback(), nullEvent, and pktComplete().

Member Function Documentation

◆ actionAfterWb()

void IGbE::TxDescCache::actionAfterWb ( )

overrideprotectedvirtual

Reimplemented from IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 1968 of file i8254xGBe.cc.

References completionAddress, completionEnabled, descEnd, DmaDevice::dmaWrite(), DPRINTF, IGbE::DescCache< iGbReg::TxDesc >::igbe, iGbReg::IT_TXDW, mbits(), nullEvent, IGbE::DescCache< iGbReg::TxDesc >::pciToDma(), IGbE::postInterrupt(), IGbE::regs, and iGbReg::Regs::tdh.

◆ completionWriteback()

void IGbE::TxDescCache::completionWriteback	(	Addr	a,
		bool	enabled
	)

inline

Definition at line 486 of file i8254xGBe.hh.

References ArmISA::a, DPRINTF, Stats::enabled(), and IGbE::DescCache< T >::hasOutstandingEvents().

Referenced by IGbE::write().

◆ descBase()

Addr IGbE::TxDescCache::descBase ( ) const

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 400 of file i8254xGBe.hh.

References IGbE::DescCache< T >::igbe, IGbE::regs, and iGbReg::Regs::tdba.

◆ descHead()

long IGbE::TxDescCache::descHead ( ) const

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 401 of file i8254xGBe.hh.

References IGbE::DescCache< T >::igbe, IGbE::regs, and iGbReg::Regs::tdh.

◆ descInBlock()

unsigned IGbE::TxDescCache::descInBlock ( unsigned num_desc )

inline

Return the number of dsecriptors in a cache block for threshold operations.

Definition at line 453 of file i8254xGBe.hh.

References DmaDevice::cacheBlockSize(), and IGbE::DescCache< T >::igbe.

Referenced by pktComplete().

◆ descLen()

long IGbE::TxDescCache::descLen ( ) const

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 403 of file i8254xGBe.hh.

References IGbE::DescCache< T >::igbe, IGbE::regs, and iGbReg::Regs::tdlen.

◆ descTail()

long IGbE::TxDescCache::descTail ( ) const

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 402 of file i8254xGBe.hh.

References IGbE::DescCache< T >::igbe, IGbE::regs, and iGbReg::Regs::tdt.

◆ enableSm()

void IGbE::TxDescCache::enableSm ( )

overrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 2052 of file i8254xGBe.cc.

References Draining, Drainable::drainState(), IGbE::DescCache< iGbReg::TxDesc >::igbe, IGbE::restartClock(), and IGbE::txTick.

Referenced by headerComplete(), and pktComplete().

◆ fetchAfterWb()

void IGbE::TxDescCache::fetchAfterWb ( )

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 407 of file i8254xGBe.hh.

References Drainable::drainState(), IGbE::DescCache< T >::fetchDescriptors(), IGbE::DescCache< T >::igbe, Running, and IGbE::txTick.

◆ getPacketData()

void IGbE::TxDescCache::getPacketData ( EthPacketPtr p )

◆ getPacketSize()

unsigned IGbE::TxDescCache::getPacketSize ( EthPacketPtr p )

Tell the cache to DMA a packet from main memory into its buffer and return the size the of the packet to reserve space in tx fifo.

Returns: size of the packet

Definition at line 1676 of file i8254xGBe.cc.

References iGbReg::TxDesc::d1, iGbReg::TxDesc::d2, DPRINTF, iGbReg::TxdOp::getLen(), tsoCopyBytes, tsoDescBytesUsed, tsoHeaderLen, tsoLoadedHeader, tsoMss, tsoPktHasHeader, tsoTotalLen, tsoUsedLen, IGbE::DescCache< iGbReg::TxDesc >::unusedCache, and useTso.

Referenced by IGbE::txStateMachine().

◆ hasOutstandingEvents()

bool IGbE::TxDescCache::hasOutstandingEvents ( )

overridevirtual

Reimplemented from IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 2061 of file i8254xGBe.cc.

References IGbE::DescCache< iGbReg::TxDesc >::fetchEvent, pktEvent, Event::scheduled(), and IGbE::DescCache< iGbReg::TxDesc >::wbEvent.

Referenced by IGbE::checkDrain(), and IGbE::drain().

◆ headerComplete()

void IGbE::TxDescCache::headerComplete ( )

Definition at line 1651 of file i8254xGBe.cc.

References IGbE::checkDrain(), DPRINTF, enableSm(), iGbReg::TxdOp::getLen(), IGbE::DescCache< iGbReg::TxDesc >::igbe, pktWaiting, tsoDescBytesUsed, tsoHeaderLen, tsoLoadedHeader, IGbE::DescCache< iGbReg::TxDesc >::unusedCache, and IGbE::DescCache< iGbReg::TxDesc >::usedCache.

Referenced by TxDescCache().

◆ nullCallback()

void IGbE::TxDescCache::nullCallback ( )

inline

Definition at line 496 of file i8254xGBe.hh.

References DPRINTF.

Referenced by TxDescCache().

◆ packetAvailable()

bool IGbE::TxDescCache::packetAvailable ( )

Ask if the packet has been transfered so the state machine can give it to the fifo.

Returns: packet available in descriptor cache

Definition at line 2042 of file i8254xGBe.cc.

References pktDone.

Referenced by IGbE::txStateMachine().

◆ packetMultiDesc()

bool IGbE::TxDescCache::packetMultiDesc ( )

inline

Ask if this packet is composed of multiple descriptors so even if we've got data, we need to wait for more before we can send it out.

Returns: packet can't be sent out because it's a multi-descriptor packet

Definition at line 475 of file i8254xGBe.hh.

Referenced by IGbE::txStateMachine().

◆ packetWaiting()

bool IGbE::TxDescCache::packetWaiting ( )

inline

Ask if we are still waiting for the packet to be transfered.

Returns: packet still in transit.

Definition at line 467 of file i8254xGBe.hh.

Referenced by IGbE::txStateMachine().

◆ pktComplete()

void IGbE::TxDescCache::pktComplete ( )

Called by event when dma to write packet is completed.

Definition at line 1764 of file i8254xGBe.cc.

Referenced by TxDescCache().

◆ processContextDesc()

void IGbE::TxDescCache::processContextDesc ( )

Definition at line 1574 of file i8254xGBe.cc.

References IGbE::anDq(), IGbE::DescCache< iGbReg::TxDesc >::annUnusedCacheQ, IGbE::DescCache< iGbReg::TxDesc >::annUsedCacheQ, IGbE::anQ(), DmaDevice::dmaRead(), DPRINTF, iGbReg::TxdOp::getBuf(), iGbReg::TxdOp::getLen(), iGbReg::TxdOp::getTsoLen(), iGbReg::TxdOp::hdrlen(), headerEvent, IGbE::DescCache< iGbReg::TxDesc >::igbe, iGbReg::TxdOp::isContext(), iGbReg::TxdOp::isData(), isTcp, iGbReg::TxdOp::isType(), iGbReg::TxdOp::mss(), IGbE::DescCache< iGbReg::TxDesc >::pciToDma(), pktWaiting, iGbReg::TxdOp::setDd(), iGbReg::TxdOp::tcp(), iGbReg::TxdOp::tse(), tsoCopyBytes, tsoDescBytesUsed, tsoHeader, tsoHeaderLen, tsoLoadedHeader, tsoMss, tsoPktHasHeader, tsoPkts, tsoPrevSeq, tsoTotalLen, tsoUsedLen, iGbReg::TxdOp::TXD_ADVDATA, iGbReg::TxdOp::TXD_CNXT, IGbE::DescCache< iGbReg::TxDesc >::unusedCache, IGbE::DescCache< iGbReg::TxDesc >::usedCache, and useTso.

Referenced by IGbE::txStateMachine().

◆ serialize()

void IGbE::TxDescCache::serialize ( CheckpointOut & cp ) const

overridevirtual

Serialize an object.

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

Parameters

cp	Checkpoint state

Implements Serializable.

Definition at line 1984 of file i8254xGBe.cc.

References completionAddress, completionEnabled, descEnd, isTcp, pktDone, pktMultiDesc, pktWaiting, IGbE::DescCache< T >::serialize(), SERIALIZE_ARRAY, SERIALIZE_SCALAR, tsoCopyBytes, tsoDescBytesUsed, tsoHeader, tsoHeaderLen, tsoLoadedHeader, tsoMss, tsoPktHasHeader, tsoPktPayloadBytes, tsoPkts, tsoPrevSeq, tsoTotalLen, tsoUsedLen, and useTso.

◆ unserialize()

void IGbE::TxDescCache::unserialize ( CheckpointIn & cp )

overridevirtual

Unserialize an object.

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

Parameters

cp	Checkpoint state

Implements Serializable.

Definition at line 2013 of file i8254xGBe.cc.

References completionAddress, completionEnabled, descEnd, isTcp, pktDone, pktMultiDesc, pktWaiting, tsoCopyBytes, tsoDescBytesUsed, tsoHeader, tsoHeaderLen, tsoLoadedHeader, tsoMss, tsoPktHasHeader, tsoPktPayloadBytes, tsoPkts, tsoPrevSeq, tsoTotalLen, tsoUsedLen, IGbE::DescCache< T >::unserialize(), UNSERIALIZE_ARRAY, UNSERIALIZE_SCALAR, and useTso.

◆ updateHead()

void IGbE::TxDescCache::updateHead ( long h )

inlineoverrideprotectedvirtual

Implements IGbE::DescCache< iGbReg::TxDesc >.

Definition at line 404 of file i8254xGBe.hh.

References IGbE::DescCache< T >::actionAfterWb(), IGbE::DescCache< T >::enableSm(), IGbE::DescCache< T >::igbe, IGbE::regs, and iGbReg::Regs::tdh.

Member Data Documentation

◆ completionAddress

Addr IGbE::TxDescCache::completionAddress

protected

Definition at line 418 of file i8254xGBe.hh.

Referenced by actionAfterWb(), serialize(), and unserialize().

◆ completionEnabled

bool IGbE::TxDescCache::completionEnabled

protected

Definition at line 419 of file i8254xGBe.hh.

Referenced by actionAfterWb(), serialize(), and unserialize().

◆ descEnd

uint32_t IGbE::TxDescCache::descEnd

protected

Definition at line 420 of file i8254xGBe.hh.

Referenced by actionAfterWb(), serialize(), and unserialize().

◆ headerEvent

EventFunctionWrapper IGbE::TxDescCache::headerEvent

Definition at line 483 of file i8254xGBe.hh.

Referenced by processContextDesc(), and TxDescCache().

◆ isTcp

bool IGbE::TxDescCache::isTcp

protected

Definition at line 415 of file i8254xGBe.hh.

Referenced by processContextDesc(), serialize(), and unserialize().

◆ nullEvent

EventFunctionWrapper IGbE::TxDescCache::nullEvent

Definition at line 499 of file i8254xGBe.hh.

Referenced by actionAfterWb(), and TxDescCache().

◆ pktDone

bool IGbE::TxDescCache::pktDone

protected

Definition at line 414 of file i8254xGBe.hh.

Referenced by packetAvailable(), pktComplete(), serialize(), and unserialize().

◆ pktEvent

EventFunctionWrapper IGbE::TxDescCache::pktEvent

Definition at line 480 of file i8254xGBe.hh.

Referenced by getPacketData(), and hasOutstandingEvents().

◆ pktMultiDesc

bool IGbE::TxDescCache::pktMultiDesc

protected

Definition at line 417 of file i8254xGBe.hh.

Referenced by pktComplete(), serialize(), and unserialize().

◆ pktWaiting

bool IGbE::TxDescCache::pktWaiting

protected

Definition at line 416 of file i8254xGBe.hh.

Referenced by getPacketData(), headerComplete(), pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ tsoCopyBytes

Addr IGbE::TxDescCache::tsoCopyBytes

protected

Definition at line 435 of file i8254xGBe.hh.

Referenced by getPacketData(), getPacketSize(), pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ tsoDescBytesUsed

Addr IGbE::TxDescCache::tsoDescBytesUsed

protected

Definition at line 434 of file i8254xGBe.hh.

Referenced by getPacketData(), getPacketSize(), headerComplete(), pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ tsoHeader

uint8_t IGbE::TxDescCache::tsoHeader[256]

protected

Definition at line 433 of file i8254xGBe.hh.

Referenced by getPacketData(), processContextDesc(), serialize(), and unserialize().

◆ tsoHeaderLen

Addr IGbE::TxDescCache::tsoHeaderLen

protected

Definition at line 425 of file i8254xGBe.hh.

Referenced by getPacketData(), getPacketSize(), headerComplete(), pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ tsoLoadedHeader

bool IGbE::TxDescCache::tsoLoadedHeader

protected

Definition at line 431 of file i8254xGBe.hh.

Referenced by getPacketData(), getPacketSize(), headerComplete(), pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ tsoMss

Addr IGbE::TxDescCache::tsoMss

protected

Definition at line 426 of file i8254xGBe.hh.

Referenced by getPacketSize(), pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ tsoPktHasHeader

bool IGbE::TxDescCache::tsoPktHasHeader

protected

Definition at line 432 of file i8254xGBe.hh.

Referenced by getPacketData(), getPacketSize(), pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ tsoPktPayloadBytes

Addr IGbE::TxDescCache::tsoPktPayloadBytes

protected

Definition at line 430 of file i8254xGBe.hh.

Referenced by serialize(), and unserialize().

◆ tsoPkts

int IGbE::TxDescCache::tsoPkts

protected

Definition at line 436 of file i8254xGBe.hh.

Referenced by pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ tsoPrevSeq

Addr IGbE::TxDescCache::tsoPrevSeq

protected

Definition at line 429 of file i8254xGBe.hh.

Referenced by pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ tsoTotalLen

Addr IGbE::TxDescCache::tsoTotalLen

protected

Definition at line 427 of file i8254xGBe.hh.

Referenced by getPacketSize(), pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ tsoUsedLen

Addr IGbE::TxDescCache::tsoUsedLen

protected

Definition at line 428 of file i8254xGBe.hh.

Referenced by getPacketSize(), pktComplete(), processContextDesc(), serialize(), and unserialize().

◆ useTso

bool IGbE::TxDescCache::useTso

protected

Definition at line 424 of file i8254xGBe.hh.

Referenced by getPacketData(), getPacketSize(), pktComplete(), processContextDesc(), serialize(), and unserialize().

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

dev/net/i8254xGBe.hh
dev/net/i8254xGBe.cc

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ TxDescCache()

Member Function Documentation

◆ actionAfterWb()

◆ completionWriteback()

◆ descBase()

◆ descHead()

◆ descInBlock()

◆ descLen()

◆ descTail()

◆ enableSm()

◆ fetchAfterWb()

◆ getPacketData()

◆ getPacketSize()

◆ hasOutstandingEvents()

◆ headerComplete()

◆ nullCallback()

◆ packetAvailable()

◆ packetMultiDesc()

◆ packetWaiting()

◆ pktComplete()

◆ processContextDesc()

◆ serialize()

◆ unserialize()

◆ updateHead()

Member Data Documentation

◆ completionAddress

◆ completionEnabled

◆ descEnd

◆ headerEvent

◆ isTcp

◆ nullEvent

◆ pktDone

◆ pktEvent

◆ pktMultiDesc

◆ pktWaiting

◆ tsoCopyBytes

◆ tsoDescBytesUsed

◆ tsoHeader

◆ tsoHeaderLen

◆ tsoLoadedHeader

◆ tsoMss

◆ tsoPktHasHeader

◆ tsoPktPayloadBytes

◆ tsoPkts

◆ tsoPrevSeq

◆ tsoTotalLen

◆ tsoUsedLen

◆ useTso