Xilinx KCU105 User Manual page 65

The GUI and Application Traffic Generator Interface
In Linux, the GUI and application traffic generator communicate through UNIX sockets. The
GUI opens a UNIX socket and sends messages to the application traffic generator. The main
thread of the application traffic generator waits for a message from the GUI and spawns
threads according to the test mode.
In Windows, the application traffic generator is a part of the GUI itself, so there is no
requirement for any socket communication. It is implemented in a dynamic linked library
which is invoked by the GUI when it starts. The GUI spawns threads according to the test
mode.
The GUI and XDMA Driver Interface
The XDMA driver polls power monitor and performance monitor statistics periodically and
stores the statistics in internal data structures. The GUI periodically polls these statistics
from the XDMA driver by opening the driver interface and sending IOCTL system calls.
PCIe Streaming Data Plane TRD
UG920 (v2017.1) June 01, 2017
Chapter 5: Targeted Reference Design Details and Modifications
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