[dpdk-dev] [RFC 2/2] doc/guides/prog_guide: add new flow attribute

[Qi Zhang <qi.z.zhang@intel.com>]

Update the programming guide for the new attribute of rte_flow

Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
---
 doc/guides/prog_guide/rte_flow.rst | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
index b587ba9..5207eec 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -181,6 +181,18 @@ directions. At least one direction must be specified.
 Specifying both directions at once for a given rule is not recommended but
 may be valid in a few cases (e.g. shared counters).
 
+Attribute: Match hint
+^^^^^^^^^^^^^^^^^^^^^
+
+This is a attribute to hint different pattern match accuracy.
+
+Perfect match:
+- Actions will be taken if input packet's pattern matches flow's pattern.
+
+Signature match:
+- Actions will be taken if the signature of input packet's pattern matches
+  the signature of flow's pattern.
+
 Pattern item
 ~~~~~~~~~~~~
 
-- 
2.7.4