AR# 67782

描述

I have a simple design on the Zynq UltraScale which includes the PS GEM, and am building the Linux image in PetaLinux 2016.2.

When testing higher loads, the error message below is seen on the console:

"not whole frame pointed by descriptor"

What does this message mean, and can it be safely ignored?

解决方案

Under heavy RX loads, the controller can report resource errors due to a lack of descriptors to process or when it is unable to handle the traffic.

The behavior seen here is expected, but the controller should not hang and it should continue to process the packets.

In this situation, if some of the packets are not proper, the controller can drop them. The warning message seen here is an indication of such packet drops.