AR# 32144

10.1 EDK, MPMC v4.03.a - SDMA PIM data corrupted when TX descriptor update interrupts RX payload write

Description


RX data is corrupted when the transmit side of the SDMA updates its own buffer descriptor in memory. When interrupted by an Tx buffer descriptor update, the SDMA engine Rx side loses count of the address it was writing data to.
How do I resolve this issue?

Solution

This issue is fixed in MPMC v5.00.a, released in EDK 11.1.
AR# 32144
Date 12/15/2012
Status Active
Type General Article
Tools More Less
IP