xfrm: add documentation for xfrm device offload api

Add a writeup on how to use the XFRM device offload API, and
mention this new file in the index.

Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Shannon Nelson 2017-11-20 14:26:07 -08:00 • committed by Steffen Klassert
commit 5c0bb261d2
2 changed files with 134 additions and 0 deletions