LLDEnetCfg_t Struct Reference

Detailed Description

Configuration structure for LLDEnet.

Data Fields
uint32_t	enetType
uint32_t	instId
void(*	txNotifyCb )(void *cbArg)
void(*	rxNotifyCb )(void *cbArg)
void *	txCbArg
void *	rxCbArg
uint8_t	dstMacAddr [6]
uint32_t	vlanId
uint32_t	ethType
uint32_t	nTxPkts
uint32_t	nRxPkts [MAX_NUM_RX_DMA_CH_PER_INSTANCE]
uint32_t	pktSize
int	dmaTxChId
int	dmaRxChId [MAX_NUM_RX_DMA_CH_PER_INSTANCE]
bool	unusedDmaRx
bool	unusedDmaTx
bool	dmaRxShared
bool	dmaRxOwner
uint32_t	numRxChannels

Field Documentation

enetType

uint32_t LLDEnetCfg_t::enetType

Ethernet type.

instId

uint32_t LLDEnetCfg_t::instId

Instance ID.

txNotifyCb

void(* LLDEnetCfg_t::txNotifyCb) (void *cbArg)

Transmit notification callback function pointer.

rxNotifyCb

void(* LLDEnetCfg_t::rxNotifyCb) (void *cbArg)

Receive notification callback function pointer.

txCbArg

void* LLDEnetCfg_t::txCbArg

Argument to be passed to the transmit notification callback function.

rxCbArg

void* LLDEnetCfg_t::rxCbArg

Argument to be passed to the receive notification callback function.

dstMacAddr

uint8_t LLDEnetCfg_t::dstMacAddr[6]

Destination MAC address to filter RX packets. If all bytes of MAC addres are 0, no filter is applied.

vlanId

uint32_t LLDEnetCfg_t::vlanId

VLAN ID to filter RX packets. If all bytes of dstMacAddr are 0, no filter is applied.

ethType

uint32_t LLDEnetCfg_t::ethType

Ethernet Type to filter RX packets.

nTxPkts

uint32_t LLDEnetCfg_t::nTxPkts

Number of buffers allocated for transmit packets Set to 0 to use the default value assigned by the implementation.

nRxPkts

uint32_t LLDEnetCfg_t::nRxPkts[MAX_NUM_RX_DMA_CH_PER_INSTANCE]

Number of buffers allocated for receive packets Set to 0 to use the default value assigned by the implementation.

pktSize

uint32_t LLDEnetCfg_t::pktSize

Transmit and receive maximum packet size. Set to 0 to use the default value assigned by the implementation.

dmaTxChId

int LLDEnetCfg_t::dmaTxChId

DMA transmit channel ID. Set to -1 for dynamic allocation, only supported by Jacinto.

dmaRxChId

int LLDEnetCfg_t::dmaRxChId[MAX_NUM_RX_DMA_CH_PER_INSTANCE]

DMA receive channel ID. Set to -1 for dynamic allocation, only supported by Jacinto.

unusedDmaRx

bool LLDEnetCfg_t::unusedDmaRx

true: won't use DMA RX; false: will use DMA RX This is used when there is no interest in receiving data.

unusedDmaTx

bool LLDEnetCfg_t::unusedDmaTx

true: won't use DMA TX; false: will use DMA TX This is used when there is no interest in sending data.

dmaRxShared

bool LLDEnetCfg_t::dmaRxShared

Only the Sitara AM273x supports this param. true: the dmaRxChId is shared between apps; false: not shared

dmaRxOwner

bool LLDEnetCfg_t::dmaRxOwner

Only the Sitara AM273x supports this param. true: the LLDEnet_t owns this RX DMA channel, it has the full permission to access the SDK DMA API; false: the LLDEnet_t is unable to to call SDK RX DMA API This is used when there are multiple LLDEnet_t shares the same DMA RX channel. User has to make sure only one LLDEnet_t has dmaRxOwner is set to true if the DMA channel share function is used. Currently TX DMA channel share is not supported.

numRxChannels

uint32_t LLDEnetCfg_t::numRxChannels

Number of Rx DMA channels, only ICSSG peripheral has more than 1 Rx DMA channels.