rss tldr

[Andriy Gapon]

Is there any up-do-date documentation on RSS/FreeBSD ?
I am looking -- for a friend :) -- for some simple things like:
- is it enabled by default? if not, how to enable?
- how / what to configure if any configuration is needed?
- how to observe / verify that it works?
- how to find out, before purchasing, if a controller and its driver
support RSS?

My first impression is that answers really depend on the hardware /
drivers.  But maybe there are some common things and maybe there are
some easy answers for the most common and important controllers (like
those from Intel plus virtual/cloud ones like ena/vmx/hn).

Thank you very much in advance.
-- 
Andriy Gapon