doc: announce moving ethdev actions to general modify

Currently there is a dedicated modify action for each
packet field that the application wants to change.
For example:
RTE_FLOW_ACTION_TYPE_SET_IPV4_DST to modify destination of IPv4.

A new action RTE_FLOW_ACTION_TYPE_MODIFY_FIELD added the ability
to use the same action to modify any field, in addition to be able to
modify the value based on different field and not just immediate value.

Signed-off-by: Ori Kam <orika@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 8397b1c..1f78940 100644 (file)
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -117,6 +117,9 @@ Deprecation Notices
   as deprecated in DPDK 20.11, along with the associated macros ``ETH_MIRROR_*``.
   This API will be fully removed in DPDK 21.11.
 
+* ethdev: Announce moving from dedicated modify function for each field,
+  to using the general ``rte_flow_modify_field`` action.
+
 * ethdev: The struct ``rte_flow_action_modify_data`` will be modified
   to support modifying fields larger than 64 bits.
   In addition, documentation will be updated to clarify byte order.