Inheritance diagram for gem5::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.

void	getPacketData (EthPacketPtr p)

void	processContextDesc ()

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

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

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

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.

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

void	headerComplete ()

void	completionWriteback (Addr a, bool enabled)

bool	hasOutstandingEvents () override

void	nullCallback ()

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

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

Public Member Functions inherited from gem5::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.

void	writeback (Addr aMask)

void	writeback1 ()

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

void	fetchDescriptors1 ()

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

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

unsigned	descLeft () const

unsigned	descUsed () const

unsigned	descUnused () const

void	reset ()

Public Member Functions inherited from gem5::Serializable
	Serializable ()

virtual	~Serializable ()

void	serializeSection (CheckpointOut &cp, const char *name) const
	Serialize an object into a new section.

void	serializeSection (CheckpointOut &cp, const std::string &name) const

void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object.

void	unserializeSection (CheckpointIn &cp, const std::string &name)

Public Attributes
EventFunctionWrapper	pktEvent

EventFunctionWrapper	headerEvent

EventFunctionWrapper	nullEvent

Public Attributes inherited from gem5::IGbE::DescCache< igbreg::TxDesc >
std::string	annSmFetch
	Annotate sm.

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 gem5::IGbE::DescCache< igbreg::TxDesc >
Addr	pciToDma (Addr a)
	Shortcut for DMA address translation.

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 gem5::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.

Additional Inherited Members
Static Public Member Functions inherited from gem5::Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section.

static void	generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream)
	Generate a checkpoint file so that the serialization can be routed to it.

Protected Types inherited from gem5::IGbE::DescCache< igbreg::TxDesc >
typedef std::deque< igbreg::TxDesc * >	CacheType

Detailed Description

Definition at line 366 of file i8254xGBe.hh.

Constructor & Destructor Documentation

◆ TxDescCache()

gem5::IGbE::TxDescCache::TxDescCache	(	IGbE *	i,
		std::string	n,
		int	s )

Definition at line 1498 of file i8254xGBe.cc.

References pktComplete().

Member Function Documentation

◆ actionAfterWb()

void gem5::IGbE::TxDescCache::actionAfterWb ( )

overrideprotectedvirtual

Reimplemented from gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 1902 of file i8254xGBe.cc.

References DPRINTF, gem5::igbreg::IT_TXDW, gem5::mbits(), and gem5::PciDevice::pciToDma().

◆ completionWriteback()

void gem5::IGbE::TxDescCache::completionWriteback	(	Addr	a,
		bool	enabled )

inline

Definition at line 455 of file i8254xGBe.hh.

References gem5::ArmISA::a, completionAddress, completionEnabled, DPRINTF, and gem5::statistics::enabled().

Referenced by gem5::IGbE::write().

◆ descBase()

Addr gem5::IGbE::TxDescCache::descBase ( ) const

inlineoverrideprotectedvirtual

Implements gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 369 of file i8254xGBe.hh.

References gem5::IGbE::DescCache< igbreg::TxDesc >::igbe, gem5::IGbE::regs, and gem5::igbreg::Regs::tdba.

◆ descHead()

long gem5::IGbE::TxDescCache::descHead ( ) const

inlineoverrideprotectedvirtual

Implements gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 370 of file i8254xGBe.hh.

References gem5::IGbE::DescCache< igbreg::TxDesc >::igbe, gem5::IGbE::regs, and gem5::igbreg::Regs::tdh.

◆ descInBlock()

unsigned gem5::IGbE::TxDescCache::descInBlock ( unsigned num_desc )

inline

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

Definition at line 422 of file i8254xGBe.hh.

References gem5::DmaDevice::cacheBlockSize(), and gem5::IGbE::DescCache< igbreg::TxDesc >::igbe.

◆ descLen()

long gem5::IGbE::TxDescCache::descLen ( ) const

inlineoverrideprotectedvirtual

Implements gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 372 of file i8254xGBe.hh.

References gem5::IGbE::DescCache< igbreg::TxDesc >::igbe, gem5::IGbE::regs, and gem5::igbreg::Regs::tdlen.

◆ descTail()

long gem5::IGbE::TxDescCache::descTail ( ) const

inlineoverrideprotectedvirtual

Implements gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 371 of file i8254xGBe.hh.

References gem5::IGbE::DescCache< igbreg::TxDesc >::igbe, gem5::IGbE::regs, and gem5::igbreg::Regs::tdt.

◆ enableSm()

void gem5::IGbE::TxDescCache::enableSm ( )

overrideprotectedvirtual

Implements gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 1986 of file i8254xGBe.cc.

References gem5::Draining.

◆ fetchAfterWb()

void gem5::IGbE::TxDescCache::fetchAfterWb ( )

inlineoverrideprotectedvirtual

Implements gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 376 of file i8254xGBe.hh.

References gem5::Drainable::drainState(), gem5::IGbE::DescCache< igbreg::TxDesc >::fetchDescriptors(), gem5::IGbE::DescCache< igbreg::TxDesc >::igbe, gem5::Running, and gem5::IGbE::txTick.

◆ getPacketData()

void gem5::IGbE::TxDescCache::getPacketData ( EthPacketPtr p )

Definition at line 1659 of file i8254xGBe.cc.

References gem5::igbreg::TxDesc::d1, gem5::igbreg::TxDesc::d2, DPRINTF, gem5::igbreg::txd_op::getBuf(), gem5::igbreg::txd_op::getLen(), gem5::igbreg::txd_op::isData(), gem5::igbreg::txd_op::isLegacy(), gem5::MipsISA::p, and gem5::PciDevice::pciToDma().

Referenced by gem5::IGbE::txStateMachine().

◆ getPacketSize()

unsigned gem5::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 1619 of file i8254xGBe.cc.

References gem5::igbreg::TxDesc::d1, gem5::igbreg::TxDesc::d2, DPRINTF, gem5::igbreg::txd_op::getLen(), and gem5::MipsISA::p.

Referenced by gem5::IGbE::txStateMachine().

◆ hasOutstandingEvents()

bool gem5::IGbE::TxDescCache::hasOutstandingEvents ( )

overridevirtual

Reimplemented from gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 1995 of file i8254xGBe.cc.

Referenced by gem5::IGbE::checkDrain(), and gem5::IGbE::drain().

◆ headerComplete()

void gem5::IGbE::TxDescCache::headerComplete ( )

Definition at line 1594 of file i8254xGBe.cc.

References DPRINTF, and gem5::igbreg::txd_op::getLen().

◆ nullCallback()

void gem5::IGbE::TxDescCache::nullCallback ( )

inline

Definition at line 465 of file i8254xGBe.hh.

References DPRINTF.

◆ packetAvailable()

bool gem5::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 1976 of file i8254xGBe.cc.

Referenced by gem5::IGbE::txStateMachine().

◆ packetMultiDesc()

bool gem5::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 444 of file i8254xGBe.hh.

References pktMultiDesc.

Referenced by gem5::IGbE::txStateMachine().

◆ packetWaiting()

bool gem5::IGbE::TxDescCache::packetWaiting ( )

inline

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

Returns: packet still in transit.

Definition at line 436 of file i8254xGBe.hh.

References pktWaiting.

Referenced by gem5::IGbE::txStateMachine().

◆ pktComplete()

void gem5::IGbE::TxDescCache::pktComplete ( )

Called by event when dma to write packet is completed.

Definition at line 1707 of file i8254xGBe.cc.

Referenced by TxDescCache().

◆ processContextDesc()

void gem5::IGbE::TxDescCache::processContextDesc ( )

◆ serialize()

void gem5::IGbE::TxDescCache::serialize ( CheckpointOut & cp ) const

overridevirtual

Serialize an object.

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

Parameters

cp	Checkpoint state

Reimplemented from gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 1918 of file i8254xGBe.cc.

References gem5::IGbE::DescCache< T >::serialize(), SERIALIZE_ARRAY, and SERIALIZE_SCALAR.

◆ unserialize()

void gem5::IGbE::TxDescCache::unserialize ( CheckpointIn & cp )

overridevirtual

Unserialize an object.

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

Parameters

cp	Checkpoint state

Reimplemented from gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 1947 of file i8254xGBe.cc.

References gem5::IGbE::DescCache< T >::unserialize(), UNSERIALIZE_ARRAY, and UNSERIALIZE_SCALAR.

◆ updateHead()

void gem5::IGbE::TxDescCache::updateHead ( long h )

inlineoverrideprotectedvirtual

Implements gem5::IGbE::DescCache< igbreg::TxDesc >.

Definition at line 373 of file i8254xGBe.hh.

References gem5::IGbE::DescCache< igbreg::TxDesc >::igbe, gem5::IGbE::regs, and gem5::igbreg::Regs::tdh.

Member Data Documentation

◆ completionAddress

Addr gem5::IGbE::TxDescCache::completionAddress

protected

Definition at line 387 of file i8254xGBe.hh.

Referenced by completionWriteback().

◆ completionEnabled

bool gem5::IGbE::TxDescCache::completionEnabled

protected

Definition at line 388 of file i8254xGBe.hh.

Referenced by completionWriteback().

◆ descEnd

uint32_t gem5::IGbE::TxDescCache::descEnd

protected

Definition at line 389 of file i8254xGBe.hh.

◆ headerEvent

EventFunctionWrapper gem5::IGbE::TxDescCache::headerEvent

Definition at line 452 of file i8254xGBe.hh.

◆ isTcp

bool gem5::IGbE::TxDescCache::isTcp

protected

Definition at line 384 of file i8254xGBe.hh.

◆ nullEvent

EventFunctionWrapper gem5::IGbE::TxDescCache::nullEvent

Definition at line 468 of file i8254xGBe.hh.

◆ pktDone

bool gem5::IGbE::TxDescCache::pktDone

protected

Definition at line 383 of file i8254xGBe.hh.

◆ pktEvent

EventFunctionWrapper gem5::IGbE::TxDescCache::pktEvent

Definition at line 449 of file i8254xGBe.hh.

◆ pktMultiDesc

bool gem5::IGbE::TxDescCache::pktMultiDesc

protected

Definition at line 386 of file i8254xGBe.hh.

Referenced by packetMultiDesc().

◆ pktWaiting

bool gem5::IGbE::TxDescCache::pktWaiting

protected

Definition at line 385 of file i8254xGBe.hh.

Referenced by packetWaiting().

◆ tsoCopyBytes

Addr gem5::IGbE::TxDescCache::tsoCopyBytes

protected

Definition at line 404 of file i8254xGBe.hh.

◆ tsoDescBytesUsed

Addr gem5::IGbE::TxDescCache::tsoDescBytesUsed

protected

Definition at line 403 of file i8254xGBe.hh.

◆ tsoHeader

uint8_t gem5::IGbE::TxDescCache::tsoHeader[256]

protected

Definition at line 402 of file i8254xGBe.hh.

◆ tsoHeaderLen

Addr gem5::IGbE::TxDescCache::tsoHeaderLen

protected

Definition at line 394 of file i8254xGBe.hh.

◆ tsoLoadedHeader

bool gem5::IGbE::TxDescCache::tsoLoadedHeader

protected

Definition at line 400 of file i8254xGBe.hh.

◆ tsoMss

Addr gem5::IGbE::TxDescCache::tsoMss

protected

Definition at line 395 of file i8254xGBe.hh.

◆ tsoPktHasHeader

bool gem5::IGbE::TxDescCache::tsoPktHasHeader

protected

Definition at line 401 of file i8254xGBe.hh.

◆ tsoPktPayloadBytes

Addr gem5::IGbE::TxDescCache::tsoPktPayloadBytes

protected

Definition at line 399 of file i8254xGBe.hh.

◆ tsoPkts

int gem5::IGbE::TxDescCache::tsoPkts

protected

Definition at line 405 of file i8254xGBe.hh.

◆ tsoPrevSeq

Addr gem5::IGbE::TxDescCache::tsoPrevSeq

protected

Definition at line 398 of file i8254xGBe.hh.

◆ tsoTotalLen

Addr gem5::IGbE::TxDescCache::tsoTotalLen

protected

Definition at line 396 of file i8254xGBe.hh.

◆ tsoUsedLen

Addr gem5::IGbE::TxDescCache::tsoUsedLen

protected

Definition at line 397 of file i8254xGBe.hh.

◆ useTso

bool gem5::IGbE::TxDescCache::useTso

protected

Definition at line 393 of file i8254xGBe.hh.

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