https://downloadcenter.intel.com/download/28410/Adapter-User-Guide-for-Intel-Ethernet-Adapters
More specifically, refer to Page 8.
However, even it is not 100% clear. For instance, even though my adapter is covered by this document, when I went to change some of the settings I found the naming of the settings was not exactly as shown in the document. At any rate, I made some educated guesses, for instance all the "offload" settings were disabled, and I increased buffer sizes by a factor of 4. I think it made a small difference in performance, but it's barely noticeable for me.
Your mileage may vary, have fun, and all that sort of thing
