if (err)
goto err_thermal_init;
- if (mlxsw_driver->params_register)
+ if (mlxsw_driver->params_register) {
devlink_params_publish(devlink);
+ devlink_reload_enable(devlink);
+ }
return 0;
{
struct devlink *devlink = priv_to_devlink(mlxsw_core);
+ if (!reload)
+ devlink_reload_disable(devlink);
if (devlink_is_reload_failed(devlink)) {
if (!reload)
/* Only the parts that were not de-initialized in the
goto err_bpf_dev_exit;
devlink_params_publish(devlink);
+ devlink_reload_enable(devlink);
return 0;
err_bpf_dev_exit:
struct nsim_dev *nsim_dev = dev_get_drvdata(&nsim_bus_dev->dev);
struct devlink *devlink = priv_to_devlink(nsim_dev);
+ devlink_reload_disable(devlink);
+
nsim_dev_reload_destroy(nsim_dev);
nsim_bpf_dev_exit(nsim_dev);
struct device *dev;
possible_net_t _net;
struct mutex lock;
- bool reload_failed;
- bool registered;
+ u8 reload_failed:1,
+ reload_enabled:1,
+ registered:1;
char priv[0] __aligned(NETDEV_ALIGN);
};
struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size);
int devlink_register(struct devlink *devlink, struct device *dev);
void devlink_unregister(struct devlink *devlink);
+void devlink_reload_enable(struct devlink *devlink);
+void devlink_reload_disable(struct devlink *devlink);
void devlink_free(struct devlink *devlink);
int devlink_port_register(struct devlink *devlink,
struct devlink_port *devlink_port,
{
int err;
+ if (!devlink->reload_enabled)
+ return -EOPNOTSUPP;
+
err = devlink->ops->reload_down(devlink, !!dest_net, extack);
if (err)
return err;
void devlink_unregister(struct devlink *devlink)
{
mutex_lock(&devlink_mutex);
+ WARN_ON(devlink_reload_supported(devlink) &&
+ devlink->reload_enabled);
devlink_notify(devlink, DEVLINK_CMD_DEL);
list_del(&devlink->list);
mutex_unlock(&devlink_mutex);
}
EXPORT_SYMBOL_GPL(devlink_unregister);
+/**
+ * devlink_reload_enable - Enable reload of devlink instance
+ *
+ * @devlink: devlink
+ *
+ * Should be called at end of device initialization
+ * process when reload operation is supported.
+ */
+void devlink_reload_enable(struct devlink *devlink)
+{
+ mutex_lock(&devlink_mutex);
+ devlink->reload_enabled = true;
+ mutex_unlock(&devlink_mutex);
+}
+EXPORT_SYMBOL_GPL(devlink_reload_enable);
+
+/**
+ * devlink_reload_disable - Disable reload of devlink instance
+ *
+ * @devlink: devlink
+ *
+ * Should be called at the beginning of device cleanup
+ * process when reload operation is supported.
+ */
+void devlink_reload_disable(struct devlink *devlink)
+{
+ mutex_lock(&devlink_mutex);
+ /* Mutex is taken which ensures that no reload operation is in
+ * progress while setting up forbidded flag.
+ */
+ devlink->reload_enabled = false;
+ mutex_unlock(&devlink_mutex);
+}
+EXPORT_SYMBOL_GPL(devlink_reload_disable);
+
/**
* devlink_free - Free devlink instance resources
*
if (WARN_ON(!devlink_reload_supported(devlink)))
continue;
err = devlink_reload(devlink, &init_net, NULL);
- if (err)
+ if (err && err != -EOPNOTSUPP)
pr_warn("Failed to reload devlink instance into init_net\n");
}
}