patch 'doc: add LRO size limitation in mlx5 guide' has been queued to stable release 20.11.7

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 20.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/24/22. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/aaa746b08d0f6d03475701001a126be48079119c

Thanks.

Luca Boccassi

---
>From aaa746b08d0f6d03475701001a126be48079119c Mon Sep 17 00:00:00 2001
From: Gregory Etelson <getelson at nvidia.com>
Date: Thu, 17 Nov 2022 16:39:01 +0200
Subject: [PATCH] doc: add LRO size limitation in mlx5 guide

[ upstream commit ea75808941c8020c568e47d1ef9b25223258c131 ]

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

Fixes: 1c7e57f9bd33 ("net/mlx5: set maximum LRO packet size")

Signed-off-by: Gregory Etelson <getelson at nvidia.com>
Acked-by: Matan Azrad <matan at nvidia.com>
---
 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 9322c5327a..6df0bb7e62 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -306,6 +306,8 @@ Limitations
     TCP header (122B).
   - Rx queue with LRO offload enabled, receiving a non-LRO packet, can forward
     it with size limited to max LRO size, not to max RX packet length.
+  - The driver rounds down the port configuration value ``max_lro_pkt_size``
+    (from ``rte_eth_rxmode``) to a multiple of 256 due to hardware limitation.
   - LRO can be used with outer header of TCP packets of the standard format:
         eth (with or without vlan) / ipv4 or ipv6 / tcp / payload
 
-- 
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-11-22 22:01:32.331111532 +0000
+++ 0012-doc-add-LRO-size-limitation-in-mlx5-guide.patch	2022-11-22 22:01:31.519524881 +0000
@@ -1 +1 @@
-From ea75808941c8020c568e47d1ef9b25223258c131 Mon Sep 17 00:00:00 2001
+From aaa746b08d0f6d03475701001a126be48079119c Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit ea75808941c8020c568e47d1ef9b25223258c131 ]
+
@@ -10 +11,0 @@
-Cc: stable at dpdk.org
@@ -19 +20 @@
-index 4f0db21dde..ab9498a91e 100644
+index 9322c5327a..6df0bb7e62 100644
@@ -22 +23 @@
-@@ -404,6 +404,8 @@ Limitations
+@@ -306,6 +306,8 @@ Limitations