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OpenCPI Endpoint for DMA IP Specification
The following is a specification for the OpenCPI Endpoint for DMA (OPED)
Standard Interfaces for NetFPGA-10G Platform IP
The egress interface is for carrying packets heading to the PCIe bus.
In the language of data path interfaces, it has the following specification:
Channel Name Configuration
DAT C_DAT_DATA_WIDTH = 256
LEN consumer, C_LEN_DATA_WIDTH = 16
SPT not consumer, C_SPT_DATA_WIDTH = 8
DPT consumer, C_DPT_DATA_WIDTH = 8
ERR not consumer
Ingress Data Path Interface
The ingress interface is for carrying packets coming from the PCIe bus.
In the language of data path interfaces, it has the following specification:
Channel Name Configuration
DAT C_DAT_DATA_WIDTH = 256
LEN active producer, C_LEN_DATA_WIDTH = 16
SPT active producer, C_SPT_DATA_WIDTH = 8
DPT grounded
ERR grounded