Commit d61bab39 authored by Shay Drory's avatar Shay Drory Committed by Saeed Mahameed
Browse files

net/mlx5: LAG, block multipath LAG in case ldev have more than 2 ports 



multipath LAG is not supported over more than two ports. Add a check in
order to block multipath LAG over such configurations.

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 c83e6ab9

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

+4 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ static bool __mlx5_lag_is_multipath(struct mlx5_lag *ldev) 
	return ldev->mode == MLX5_LAG_MODE_MULTIPATH;

}



#define MLX5_LAG_MULTIPATH_OFFLOADS_SUPPORTED_PORTS 2

static bool mlx5_lag_multipath_check_prereq(struct mlx5_lag *ldev)

{

	if (!mlx5_lag_is_ready(ldev))
@@ -22,6 +23,9 @@ static bool mlx5_lag_multipath_check_prereq(struct mlx5_lag *ldev) 
	if (__mlx5_lag_is_active(ldev) && !__mlx5_lag_is_multipath(ldev))

		return false;



	if (ldev->ports > MLX5_LAG_MULTIPATH_OFFLOADS_SUPPORTED_PORTS)

		return false;



	return mlx5_esw_multipath_prereq(ldev->pf[MLX5_LAG_P1].dev,

					 ldev->pf[MLX5_LAG_P2].dev);

}