doc: announce deprecation of EAL runtime path

[dpdk.git] / doc / guides / rel_notes / deprecation.rst

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index df54674..00fec39 100644 (file)
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -8,6 +8,16 @@ API and ABI deprecation notices are to be posted here.
 Deprecation Notices
 -------------------
 
+* eal: DPDK runtime configuration file (located at
+  ``/var/run/.<prefix>_config``) will be moved. The new path will be as follows:
+
+  - if DPDK is running as root, path will be set to
+    ``/var/run/dpdk/<prefix>/config``
+  - if DPDK is not running as root and $XDG_RUNTIME_DIR is set, path will be set
+    to ``$XDG_RUNTIME_DIR/dpdk/<prefix>/config``
+  - if DPDK is not running as root and $XDG_RUNTIME_DIR is not set, path will be
+    set to ``/tmp/dpdk/<prefix>/config``
+
 * eal: both declaring and identifying devices will be streamlined in v18.05.
   New functions will appear to query a specific port from buses, classes of
   device and device drivers. Device declaration will be made coherent with the