[dpdk-dev] [PATCH] doc: add VLAN flow limitation on mlx5 PMD

[Shahaf Shuler]

On mlx5 PMD Flow pattern without any specific vlan will match for vlan
packets as well.

Signed-off-by: Shahaf Shuler <shahafs at mellanox.com>
Acked-by: Nelio Laranjeiro nelio.laranjeiro at 6wind.com
---
 doc/guides/rel_notes/release_17_08.rst | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/doc/guides/rel_notes/release_17_08.rst b/doc/guides/rel_notes/release_17_08.rst
index 7f1212094..bd219640c 100644
--- a/doc/guides/rel_notes/release_17_08.rst
+++ b/doc/guides/rel_notes/release_17_08.rst
@@ -111,6 +111,22 @@ Known Issues
    Also, make sure to start the actual text at the margin.
    =========================================================
 
+* **On mlx5 PMD, Flow pattern without any specific vlan will match for vlan packets as well.**
+
+  When VLAN spec is not specified in the pattern, the matching rule will be created with VLAN as a wild card.
+  Meaning, the flow rule::
+
+        flow create 0 ingress pattern eth / vlan vid is 3 / ipv4 / end ...
+
+  Will only match vlan packets with vid=3. and the flow rules::
+
+        flow create 0 ingress pattern eth / ipv4 / end ...
+
+  Or::
+
+        flow create 0 ingress pattern eth / vlan / ipv4 / end ...
+
+  Will match any ipv4 packet (VLAN included).
 
 API Changes
 -----------
-- 
2.12.0