doc: announce common prefix for ethdev

Announce adding 'RTE_ETH_' prefix to all public ethdev macros/enums on
v21.11.
Backward compatibility macros will be added on v21.11 and they will be
removed on v22.11.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Raslan Darawsheh <rasland@nvidia.com>
Acked-by: Tyler Retzlaff <roretzla@linux.microsoft.com>

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 4bc4d34..d9c0e65 100644 (file)
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -51,6 +51,12 @@ Deprecation Notices
   us extending existing enum/define.
   One solution can be using a fixed size array instead of ``.*MAX.*`` value.
 
+* ethdev: Will add ``RTE_ETH_`` prefix to all ethdev macros/enums in v21.11.
+  Macros will be added for backward compatibility.
+  Backward compatibility macros will be removed on v22.11.
+  A few old backward compatibility macros from 2013 that does not have
+  proper prefix will be removed on v21.11.
+
 * ethdev: The flow director API, including ``rte_eth_conf.fdir_conf`` field,
   and the related structures (``rte_fdir_*`` and ``rte_eth_fdir_*``),
   will be removed in DPDK 20.11.