How can I test TSO/LRO functionality ? What are the test cases for this?

How can I test TSO/LRO functionality ? What are the test cases for this?

I want to test tcp offload functionality (segmentation/large receive
offload) on my network.
What are the possible test cases for this? What kind of tools are
available. Are there already any test cases available, and can someone
please provide any reference of that?
Thanks in advance