enet_cpdma.h File Reference

Introduction

This file contains the type definitions and helper macros for the Enet CPDMA data path (DMA) interface.

Go to the source code of this file.

Data Structures
struct	EnetCpdma_PktTsInfo
	CPPI buffer timestamp info. More...
struct	EnetCpdma_SGListEntry
	Transmit Packet scatter gather list entry. More...
struct	EnetCpdma_SGList
	Transmit packet scatter list info. More...
struct	EnetCpdma_PktInfo
	Packet data structure. More...
struct	EnetCpdma_OpenTxChPrms
	Param struct for the TX channel open function. More...
struct	EnetCpdma_OpenRxChPrms
	Param struct for the RX channel open function. More...
struct	EnetCpdma_RxChInitPrms
	Global Param struct for the Rx channel open. More...
struct	EnetDma_Cfg
	Config structure for Enet CPDMA. More...
struct	EnetDma_initCfg
	Config structure for Enet CPDMA Data Path initialization. More...

Macros
#define	ENET_CPDMA_CPSW_MAX_SG_LIST   (4U)
#define	ENET_CPDMA_CSUM_START_BYTE_SHIFT   (16U)
#define	ENET_CPDMA_CSUM_START_BYTE_MASK   (((uint32_t) 0xFFU) << ENET_CPDMA_CSUM_START_BYTE_SHIFT)
#define	ENET_CPDMA_CSUM_RESULT_BYTE_SHIFT   (24U)
#define	ENET_CPDMA_CSUM_RESULT_BYTE_MASK   (((uint32_t) 0xFFU) << ENET_CPDMA_CSUM_RESULT_BYTE_SHIFT)
#define	ENET_CPDMA_CSUM_BYTE_COUNT_SHIFT   (0U)
#define	ENET_CPDMA_CSUM_BYTE_COUNT_MASK   (((uint32_t) 0x3FFU) << ENET_CPDMA_CSUM_BYTE_COUNT_SHIFT)
#define	ENET_CPDMA_GET_CSUM_RESULT_BYTE(chkSumInfo)    ENET_FEXT(chkSumInfo, ENET_CPDMA_CSUM_RESULT_BYTE)
#define	ENET_CPDMA_GET_CSUM_START_BYTE(chkSumInfo)    ENET_FEXT(chkSumInfo, ENET_CPDMA_CSUM_START_BYTE)
#define	ENET_CPDMA_GET_CSUM_BYTE_COUNT(chkSumInfo)    ENET_FEXT(chkSumInfo, ENET_CPDMA_CSUM_BYTE_COUNT)
Enet CPDMA instance configuration
Configuration macros for Enet CPDMA module.
#define	ENET_CPDMA_CPSW_MAX_TX_CH   (8U)
	Maximum number of CPSW TX DMA channels. More...
#define	ENET_CPDMA_CPSW_MAX_RX_CH   (8U)
	Maximum number of CPSW RX DMA channels. More...

Typedefs
typedef EnetQ	EnetDma_PktQ
	Packet queue. More...
typedef EnetCpdma_SGListEntry	EnetDma_SGListEntry
typedef EnetCpdma_OpenRxChPrms	EnetDma_OpenRxChPrms
	Param struct for the RX channel open function. We include this typedef as top level DMA APIs use EnetDma_OpenRxChPrms struct. More...
Enet DMA driver opaque handles
Enet DMA configuration structure. Opaque handle typedefs for Enet DMA driver objects.
typedef void(*	EnetDma_PktNotifyCb) (void *cbArg)
	Function pointer type for packet notify call back. More...

Functions
void	EnetCpdma_initRxChParams (EnetCpdma_OpenRxChPrms *pRxChPrms)
	Initialize RX channel open parameters. More...
EnetDma_RxChHandle	EnetCpdma_openRxCh (EnetDma_Handle hDma, const EnetCpdma_OpenRxChPrms *pRxChPrms)
	Enet DMA open RX channel. More...
int32_t	EnetCpdma_closeRxCh (EnetDma_RxChHandle hRxCh, EnetDma_PktQ *fq, EnetDma_PktQ *cq)
	Enet DMA close RX channel. More...
void	EnetCpdma_initTxChParams (EnetCpdma_OpenTxChPrms *pTxChPrms)
	Initialize TX channel open parameters. More...
EnetDma_TxChHandle	EnetCpdma_openTxCh (EnetDma_Handle hDma, const EnetCpdma_OpenTxChPrms *pTxChPrms)
	Enet DMA open TX channel. More...
int32_t	EnetCpdma_closeTxCh (EnetDma_TxChHandle hTxCh, EnetDma_PktQ *fq, EnetDma_PktQ *cq)
	Enet DMA close TX channel. More...
EnetDma_Handle	EnetCpdma_open (Enet_Type enetType, uint32_t instId, const EnetDma_Cfg *dmaCfg, uint32_t appCoreId)
	Set default data path parameters. More...
EnetDma_Handle	EnetCpdma_restoreCtxt (Enet_Type enetType, uint32_t instId, uint32_t appCoreId)
	Open DMA with default data path parameters. More...
int32_t	EnetCpdma_close (EnetDma_Handle hEnetDma)
	Close Enet DMA (data path). More...
int32_t	EnetCpdma_saveCtxt (EnetDma_Handle hEnetDma)
	Saves and closes Enet DMA (data path). More...
int32_t	EnetCpdma_rxThreshIsr (EnetDma_Handle hEnetDma)
	ENET CPDMA Rx Threshold interrupt service routine. More...
int32_t	EnetCpdma_rxIsr (EnetDma_Handle hEnetDma)
	ENET CPDMA Rx interrupt service routine. More...
int32_t	EnetCpdma_txIsr (EnetDma_Handle hEnetDma)
	ENET CPDMA Tx interrupt service routine. More...
int32_t	EnetCpdma_miscIsrGetStatus (EnetDma_Handle hEnetDma, uint32_t *pStatusMask)
	ENET CPDMA Miscellaneous interrupt service routine. More...
int32_t	EnetCpdma_ackMiscIsr (EnetDma_Handle hEnetDma)
void	EnetCpdma_initParams (EnetDma_Cfg *pDmaConfig)
	Initialize CPDMA config params. More...