From: Shay Drory <shayd@xxxxxxxxxx>
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: Shay Drory <shayd@xxxxxxxxxx>
Reviewed-by: Mark Bloch <mbloch@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
---
drivers/net/ethernet/mellanox/mlx5/core/lag/mp.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/mp.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/mp.c
index d85a8dfc153d..976caa8e6922 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/mp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/mp.c
@@ -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);
}
--
2.40.1
