Interrupts are not received when the transmit pong buffers are configured in the xps_ethernetlite_v3_00_a version of the core.
The transmit ping-pong buffers do not work. Unfortunately, there is no work-around, so do not configure the Ethernet Lite Core to use the transmit pong buffers. There is no problem with the receive pong buffers.
This issue has been fixed in EDK 11.3, available at: