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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: 05 Nov 2025 17:50:15.3385 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 462c58a1-519b-4453-e2fc-08de1c93c6d9 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: BL02EPF0002992A.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB6485 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org In multi-port E-Switch setup, the MLX5 PMD always added PF representor port. For example, `representor=pf1vf[0,1]` implicitly added PF1 representor port: ``` Port Name 0 p0 1 p1 2 representor_c0pf1vf0 3 representor_c0pf1vf1 ``` The patch adds support for the new representor format that suppresses PF representor attachment: Example: `representor=(pf1)vf[0,1]` ``` Port Name 0 p0 1 representor_c0pf1vf0 2 representor_c0pf1vf1 ``` Signed-off-by: Gregory Etelson --- v2: Use updated rte_eth_devargs::flags. v3: Fix typo in comment. --- drivers/net/mlx5/linux/mlx5_os.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c index c742e0f282..fe80773d49 100644 --- a/drivers/net/mlx5/linux/mlx5_os.c +++ b/drivers/net/mlx5/linux/mlx5_os.c @@ -2284,6 +2284,12 @@ mlx5_device_mpesw_pci_match(struct ibv_device *ibv, return -1; } +static inline bool +mlx5_ignore_pf_representor(const struct rte_eth_devargs *eth_da) +{ + return (eth_da->flags & RTE_ETH_DEVARG_IGNORE_PF_REPRESENTOR) != 0; +} + /** * Register a PCI device within bonding. * @@ -2592,6 +2598,8 @@ mlx5_os_pci_probe_pf(struct mlx5_common_device *cdev, if (list[ns].info.port_name == mpesw) { list[ns].info.master = 1; list[ns].info.representor = 0; + } else if (mlx5_ignore_pf_representor(ð_da)) { + continue; } else { list[ns].info.master = 0; list[ns].info.representor = 1; -- 2.51.0