AR# 32144: 10.1 EDK, MPMC v4.03.a - SDMA PIM data corrupted when TX descriptor update interrupts RX payload write
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.