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CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:dc6edge1.nvidia.com; CAT:NONE; SFS:(13230040)(82310400026)(1800799024)(36860700013)(376014); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Nov 2024 09:34:44.3337 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: dad53c16-9c0d-45ad-c3da-08dcfe463f57 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.160]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF00000203.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB6826 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org In switch mode, when ``repr_matching_en`` flag is enabled in the devarg, the match with compare result item is not supported to the ``ingress`` rule as an implicit REPRESENTED_PORT need to be added to the matcher. That REPRESENTED_PORT item conflicts with the single item limitation for match with compare result item. Fixes: cb25df7ce9d6 ("net/mlx5: support comparison matching") Cc: stable@dpdk.org Signed-off-by: Suanming Mou --- v2: Add `repr_matching_en`` enabled by default explanation. --- doc/guides/nics/mlx5.rst | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index 7ced6ca8f9..64933a0823 100644 --- a/doc/guides/nics/mlx5.rst +++ b/doc/guides/nics/mlx5.rst @@ -460,6 +460,11 @@ Limitations - The field type ``RTE_FLOW_FIELD_VALUE`` must be the base (``b``) field. - The field type ``RTE_FLOW_FIELD_RANDOM`` can only be compared with ``RTE_FLOW_FIELD_VALUE``. + - In switch mode, when ``repr_matching_en`` flag is enabled (by default) + in the devarg, the match with compare result item is not supported to + the ``ingress`` rule as an implicit REPRESENTED_PORT need to be added to + the matcher. That REPRESENTED_PORT item conflicts with the single item + limitation for match with compare result item. - No Tx metadata go to the E-Switch steering domain for the Flow group 0. The flows within group 0 and set metadata action are rejected by hardware. -- 2.34.1