CPPI DMA descriptor.
The format of a single DMA descriptor to be transmitted via the Enet UDMA interface.
Data Fields | |
EnetUdma_CpswHpdDesc | hpdDesc |
struct EnetUdma_DmaDesc_s * | pNextDesc |
EnetDma_Pkt * | dmaPkt |
EnetUdma_CpswHpdDesc EnetUdma_DmaDesc::hpdDesc |
CPPI HPD descriptor. Note: This MUST be first member as it is typecasted to EnetUdma_CpswHpdDesc
struct EnetUdma_DmaDesc_s* EnetUdma_DmaDesc::pNextDesc |
Pointer to next DMA desc in the queue
EnetDma_Pkt* EnetUdma_DmaDesc::dmaPkt |
Application packet details - this is used by application to store original packet info. This is to avoid asking buffer address from driver descriptor