[dpdk-dev] [PATCH v4 3/3] doc: update deprecation of CIO barrier APIs

[Honnappa Nagarahalli]

rte_cio_*mb APIs will be deprecated in 20.11 release.

Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli at arm.com>
Acked-by: Jerin Jacob <jerinj at marvell.com>
---
 doc/guides/rel_notes/deprecation.rst | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index d1034f60f..59656da3d 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -40,6 +40,12 @@ Deprecation Notices
   These wrappers must be used for patches that need to be merged in 20.08
   onwards. This change will not introduce any performance degradation.
 
+* rte_cio_*mb: Since the IO barriers for ArmV8-a platforms are relaxed from DSB
+  to DMB, rte_cio_*mb APIs provide the same functionality as rte_io_*mb
+  APIs(taking all platforms into consideration). rte_io_*mb APIs should be used
+  in the place of rte_cio_*mb APIs. The rte_cio_*mb APIs will be deprecated in
+  20.11 release.
+
 * igb_uio: In the view of reducing the kernel dependency from the main tree,
   as a first step, the Technical Board decided to move ``igb_uio``
   kernel module to the dpdk-kmods repository in the /linux/igb_uio/ directory
-- 
2.17.1