doc: add new KNI features to release notes

Add the new module parameter for the KNI kernel module, the new command
line flag for the KNI sample application, and the new API function
'rte_kni_update_link()' to the release note.

Fixes: c6fd54f28c24 ("kni: add function to set link state on kernel interface")
Fixes: 89397a01ce4a ("kni: set default carrier state of interface")
Fixes: 724beb913b44 ("examples/kni: monitor and update link state continually")

Signed-off-by: Dan Gora <dg@adax.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/doc/guides/rel_notes/release_18_11.rst b/doc/guides/rel_notes/release_18_11.rst
index a94e744..95a187b 100644 (file)
--- a/doc/guides/rel_notes/release_18_11.rst
+++ b/doc/guides/rel_notes/release_18_11.rst
@@ -279,6 +279,25 @@ New Features
   their telemetry via a UNIX socket in JSON. The JSON can be consumed by any
   Service Assurance agent, such as CollectD.
 
+* **Updated KNI kernel module, rte_kni library, and KNI sample application.**
+
+  Updated the KNI kernel module with a new kernel module parameter,
+  ``carrier=[on|off]`` to allow the user to control the default carrier
+  state of KNI kernel network interfaces.  The default carrier state
+  is now set to ``off``, so the interfaces cannot be used until the
+  carrier state is set to ``on`` via ``rte_kni_update_link`` or
+  by writing ``1`` to ``/sys/devices/virtual/net/<iface>/carrier``.
+  In previous versions the default carrier state was left undefined.
+  See :doc:`../prog_guide/kernel_nic_interface` for more information.
+
+  Added the new API function ``rte_kni_update_link`` to allow the user
+  to set the carrier state of the KNI kernel network interface.
+
+  Added a new command line flag ``-m`` to the KNI sample application to
+  monitor and automatically reflect the physical NIC carrier state to the
+  KNI kernel network interface with the new ``rte_kni_update_link`` API.
+  See :doc:`../sample_app_ug/kernel_nic_interface` for more information.
+
 * **Added ability to switch queue deferred start flag on testpmd app.**
 
   Added a console command to testpmd app, giving ability to switch