PDK API Guide for J721E
CSL_UdmapCppi5HMPD Struct Reference

Detailed Description

Host-mode packet and buffer descriptor.

This structure is used for host-mode packet descriptors and buffer descriptors.

Data Fields

uint32_t descInfo
 
uint32_t pktInfo1
 
uint32_t pktInfo2
 
uint32_t srcDstTag
 
uint64_t nextDescPtr
 
uint64_t bufPtr
 
uint32_t bufInfo1
 
uint32_t orgBufLen
 
uint64_t orgBufPtr
 

Field Documentation

◆ descInfo

uint32_t CSL_UdmapCppi5HMPD::descInfo

word 0: Packet information word 0 (not used in Buffer descriptors)

◆ pktInfo1

uint32_t CSL_UdmapCppi5HMPD::pktInfo1

word 1: Packet information word 1 (not used in Buffer descriptors)

◆ pktInfo2

uint32_t CSL_UdmapCppi5HMPD::pktInfo2

word 2: Packet information word 2 | Buffer reclamation information

◆ srcDstTag

uint32_t CSL_UdmapCppi5HMPD::srcDstTag

word 3: Packet information word 3 (not used in Buffer descriptors)

◆ nextDescPtr

uint64_t CSL_UdmapCppi5HMPD::nextDescPtr

words 4/5: Linking word

◆ bufPtr

uint64_t CSL_UdmapCppi5HMPD::bufPtr

words 6/7: Buffer 0 information words 0 and 1 (PD words 6 and 7)

◆ bufInfo1

uint32_t CSL_UdmapCppi5HMPD::bufInfo1

word 8: Buffer 0 information word 2 (PD word 8)

◆ orgBufLen

uint32_t CSL_UdmapCppi5HMPD::orgBufLen

word 9: Original buffer 0 information word 0 (PD word 9)

◆ orgBufPtr

uint64_t CSL_UdmapCppi5HMPD::orgBufPtr

words 10/11: Original buffer 0 information words 1 and 2 (PD words 10 and 11)