[PATCH v2 2/2] doc: update MLX5 LRO limitation

[Gregory Etelson]

Maximal LRO message size must be multiply of 256.
Otherwise, TCP payload may not fit into a single WQE.

Cc: stable at dpdk.org
Signed-off-by: Gregory Etelson <getelson at nvidia.com>
Acked-by: Matan Azrad <matan at nvidia.com>
---
v2: move the patch to LRO section.
---
 doc/guides/nics/mlx5.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index 4f0db21dde..e77d79774b 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -411,6 +411,8 @@ Limitations
   - LRO packet aggregation is performed by HW only for packet size larger than
     ``lro_min_mss_size``. This value is reported on device start, when debug
     mode is enabled.
+  - The driver rounds down the ``max_lro_pkt_size`` value in the port configuration
+    to a multiple of 256 due to HW limitation.
 
 - CRC:
 
-- 
2.34.1