net/mlx5: Disable devlink reload for multi port slave device

Devlink reload can't be allowed on a multi port slave device, because
reload of slave device doesn't take effect.

The right flow is to disable devlink reload for multi port slave
device. Hence, disabling it in mlx5_core probing.

Fixes: 4383cfcc ("net/mlx5: Add devlink reload")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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

@@ -1396,7 +1396,8 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 		dev_err(&pdev->dev, "mlx5_crdump_enable failed with error code %d\n", err);
 
 	pci_save_state(pdev);
-	devlink_reload_enable(devlink);
+	if (!mlx5_core_is_mp_slave(dev))
+		devlink_reload_enable(devlink);
 	return 0;
 
 err_load_one: