net/mlx5: Support devices with more than 2 ports

Increase the define MLX5_MAX_PORTS to 4 as the driver is ready
to support NICs with 4 ports.
Signed-off-by: NMark Bloch <mbloch@nvidia.com>
Reviewed-by: NMaor Gottlieb <maorg@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/dev.c

@@ -586,7 +586,8 @@ static int next_phys_dev_lag(struct device *dev, const void *data)
 
 	if (!MLX5_CAP_GEN(mdev, vport_group_manager) ||
 	    !MLX5_CAP_GEN(mdev, lag_master) ||
-	    MLX5_CAP_GEN(mdev, num_lag_ports) != MLX5_MAX_PORTS)
+	    (MLX5_CAP_GEN(mdev, num_lag_ports) > MLX5_MAX_PORTS ||
+	     MLX5_CAP_GEN(mdev, num_lag_ports) <= 1))
 		return 0;
 
 	return _next_phys_dev(mdev, data);

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

@@ -1050,7 +1050,8 @@ void mlx5_lag_add_mdev(struct mlx5_core_dev *dev)
 
 	if (!MLX5_CAP_GEN(dev, vport_group_manager) ||
 	    !MLX5_CAP_GEN(dev, lag_master) ||
-	    MLX5_CAP_GEN(dev, num_lag_ports) != MLX5_MAX_PORTS)
+	    (MLX5_CAP_GEN(dev, num_lag_ports) > MLX5_MAX_PORTS ||
+	     MLX5_CAP_GEN(dev, num_lag_ports) <= 1))
 		return;
 
 recheck:

include/linux/mlx5/driver.h

@@ -84,7 +84,7 @@ enum mlx5_sqp_t {
 };
 
 enum {
-	MLX5_MAX_PORTS	= 2,
+	MLX5_MAX_PORTS	= 4,
 };
 
 enum {