Commit 7718c1c8 authored by Shay Drory's avatar Shay Drory Committed by Saeed Mahameed
Browse files

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: default avatarShay Drory <shayd@nvidia.com>
Reviewed-by: default avatarMark Bloch <mbloch@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
parent d61bab39

drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c

+4 −0
Original line number Diff line number Diff line
@@ -65,6 +65,7 @@ static int mlx5_mpesw_metadata_set(struct mlx5_lag *ldev) 
	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) ||