From: Shay Drory <shayd@xxxxxxxxxx>
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 <shayd@xxxxxxxxxx>
Reviewed-by: Mark Bloch <mbloch@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxx>
---
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 @@ 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) ||
--
2.40.1
