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Ip=[216.228.117.161]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF00012E63.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4233 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Archive: List-Post: List-Help: List-Subscribe: , X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 From: Erez Shitrit We set the DF bit to 1, and re-calculate the csum for that buffer. Fixes: 06d969a8c5b8 ("net/mlx5/hws: support NAT64 flow action") Cc: stable@dpdk.org Signed-off-by: Erez Shitrit Acked-by: Bing Zhao Acked-by: Matan Azrad --- drivers/net/mlx5/hws/mlx5dr_action.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx5/hws/mlx5dr_action.c b/drivers/net/mlx5/hws/mlx5dr_action.c index 498c6aa109..3e48739eb5 100644 --- a/drivers/net/mlx5/hws/mlx5dr_action.c +++ b/drivers/net/mlx5/hws/mlx5dr_action.c @@ -507,8 +507,11 @@ mlx5dr_action_create_nat64_repalce_state(struct mlx5dr_context *ctx, memcpy(address_prefix, nat64_well_known_pref, MLX5DR_ACTION_NAT64_HEADER_MINUS_ONE * sizeof(uint32_t)); } else { - /* In order to fix HW csum issue, make the prefix ready */ - uint32_t ipv4_pref[] = {0x0, 0xffba0000, 0x0, 0x0, 0x0}; + /* We make a buffer that contain the right HW csum and the DF bit set. + * 0x00400000 - contain the DF bit in the right place. + * 0xff7a0000 - is the csum for that buffer, calculated via external tool. + */ + uint32_t ipv4_pref[] = {0x00400000, 0xff7a0000, 0x0, 0x0, 0x0}; header_size_in_dw = MLX5DR_ACTION_NAT64_IPV4_HEADER; ip_ver = MLX5DR_ACTION_NAT64_IPV4_VER; -- 2.34.1