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AR# 16915

3.1 EDK OPB_Ethernet (EMAC) - Does this core support DMA without scatter/gather?

Description

General Description: 

Does this core support DMA without scatter/gather?

Solution

The opb_ethernet core has a parameter named C_DMA_PRESENT. You can check the data sheet located under <Your EDK Install>/doc for the value of this parameter. A value of three indicates that the core has scatter-gather DMA, and a value of two indicates that the core has simple DMA (no scatter/gather).

AR# 16915
Date Created 09/03/2007
Last Updated 05/15/2014
Status Archive
Type General Article