From: Gregory Etelson <getelson@nvidia.com>
To: <dev@dpdk.org>
Cc: <getelson@nvidia.com>, <matan@nvidia.com>, <rasland@nvidia.com>,
<stable@dpdk.org>, Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Subject: [PATCH v2 2/2] doc: update MLX5 LRO limitation
Date: Tue, 22 Nov 2022 07:13:07 +0200 [thread overview]
Message-ID: <20221122051308.194-2-getelson@nvidia.com> (raw)
In-Reply-To: <20221122051308.194-1-getelson@nvidia.com>
Maximal LRO message size must be multiply of 256.
Otherwise, TCP payload may not fit into a single WQE.
Cc: stable@dpdk.org
Signed-off-by: Gregory Etelson <getelson@nvidia.com>
Acked-by: Matan Azrad <matan@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
prev parent reply other threads:[~2022-11-22 5:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-17 14:39 [PATCH 1/2] net/mlx5: fix port private max_lro_msg_size Gregory Etelson
2022-11-17 14:39 ` [PATCH 2/2] doc: update MLX5 LRO limitation Gregory Etelson
2022-11-21 15:23 ` Thomas Monjalon
2022-11-22 5:17 ` Gregory Etelson
2022-11-22 8:25 ` Thomas Monjalon
2022-11-20 15:32 ` [PATCH 1/2] net/mlx5: fix port private max_lro_msg_size Raslan Darawsheh
2022-11-22 5:13 ` [PATCH v2 1/2] net/mlx5: fix port private max LRO msg size Gregory Etelson
2022-11-22 5:13 ` Gregory Etelson [this message]
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