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authorJiri Pirko <jiri@nvidia.com>2023-11-28 12:52:55 +0100
committerPaolo Abeni <pabeni@redhat.com>2023-11-30 12:31:23 +0100
commit9b2348e2d6c94146f50b68d7d2067146e7339ac5 (patch)
treec12287a41f4bb5a0c3f4e6f1504fc53ce4ad8d07 /net/devlink
parent15d74e6588a158e481f38858de34011034957152 (diff)
downloadlwn-9b2348e2d6c94146f50b68d7d2067146e7339ac5.tar.gz
lwn-9b2348e2d6c94146f50b68d7d2067146e7339ac5.zip
devlink: warn about existing entities during reload-reinit
During reload-reinit, all entities except for params, resources, regions and health reporter should be removed and re-added. Add a warning to be triggered in case the driver behaves differently. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/devlink')
-rw-r--r--net/devlink/dev.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/net/devlink/dev.c b/net/devlink/dev.c
index ea6a92f2e6a2..918a0395b03e 100644
--- a/net/devlink/dev.c
+++ b/net/devlink/dev.c
@@ -425,6 +425,18 @@ static void devlink_reload_netns_change(struct devlink *devlink,
devlink_rel_nested_in_notify(devlink);
}
+static void devlink_reload_reinit_sanity_check(struct devlink *devlink)
+{
+ WARN_ON(!list_empty(&devlink->trap_policer_list));
+ WARN_ON(!list_empty(&devlink->trap_group_list));
+ WARN_ON(!list_empty(&devlink->trap_list));
+ WARN_ON(!list_empty(&devlink->dpipe_table_list));
+ WARN_ON(!list_empty(&devlink->sb_list));
+ WARN_ON(!list_empty(&devlink->rate_list));
+ WARN_ON(!list_empty(&devlink->linecard_list));
+ WARN_ON(!xa_empty(&devlink->ports));
+}
+
int devlink_reload(struct devlink *devlink, struct net *dest_net,
enum devlink_reload_action action,
enum devlink_reload_limit limit,
@@ -452,8 +464,10 @@ int devlink_reload(struct devlink *devlink, struct net *dest_net,
if (dest_net && !net_eq(dest_net, curr_net))
devlink_reload_netns_change(devlink, curr_net, dest_net);
- if (action == DEVLINK_RELOAD_ACTION_DRIVER_REINIT)
+ if (action == DEVLINK_RELOAD_ACTION_DRIVER_REINIT) {
devlink_params_driverinit_load_new(devlink);
+ devlink_reload_reinit_sanity_check(devlink);
+ }
err = devlink->ops->reload_up(devlink, action, limit, actions_performed, extack);
devlink_reload_failed_set(devlink, !!err);