doc: announce ABI changes for new flow director modes

For x550 supports 2 new flow director modes, MAC VLAN and Cloud.
The MAC VLAN mode means the MAC and VLAN are monitored.
The Cloud mode is for VxLAN and NVGRE, and the tunnel type,
TNI/VNI, inner MAC and inner VLAN are monitored.
So, there're a few new lookup fields for these 2 new modes, like MAC,
tunnel type, TNI/VNI.
We have to change the ABI to support these new lookup fields.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 50d16df..c1e349b 100644 (file)
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -50,3 +50,10 @@ Deprecation Notices
 
 * ABI change is planned to extend the SCTP flow's key input from release 2.1.
   The change may be enabled in the release 2.1 with CONFIG_RTE_NEXT_ABI.
+
+* ABI changes are planned for struct rte_eth_fdir_filter and
+  rte_eth_fdir_masks in order to support new flow director modes,
+  MAC VLAN and Cloud, on x550. The MAC VLAN mode means the MAC and
+  VLAN are monitored. The Cloud mode is for VxLAN and NVGRE, and
+  the tunnel type, TNI/VNI, inner MAC and inner VLAN are monitored.
+  The release 2.2 will contain these changes without backwards compatibility.