From 7718c1c8ac325019a3d727e994faab9cf2438263 Mon Sep 17 00:00:00 2001 From: Shay Drory Date: Tue, 6 Jun 2023 00:12:11 -0700 Subject: [PATCH] net/mlx5: LAG, block multiport eswitch LAG in case ldev have more than 2 ports multiport eswitch LAG is not supported over more than two ports. Add a check in order to block multiport eswitch LAG over such devices. Signed-off-by: Shay Drory Reviewed-by: Mark Bloch Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c index 0c0ef600f643..0e869a76dfe4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c @@ -65,6 +65,7 @@ err_metadata: return err; } +#define MLX5_LAG_MPESW_OFFLOADS_SUPPORTED_PORTS 2 static int enable_mpesw(struct mlx5_lag *ldev) { struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev; @@ -74,6 +75,9 @@ static int enable_mpesw(struct mlx5_lag *ldev) if (ldev->mode != MLX5_LAG_MODE_NONE) return -EINVAL; + if (ldev->ports > MLX5_LAG_MPESW_OFFLOADS_SUPPORTED_PORTS) + return -EOPNOTSUPP; + if (mlx5_eswitch_mode(dev0) != MLX5_ESWITCH_OFFLOADS || !MLX5_CAP_PORT_SELECTION(dev0, port_select_flow_table) || !MLX5_CAP_GEN(dev0, create_lag_when_not_master_up) || -- 2.25.1