@@ -29,6 +29,7 @@ struct devlink {
struct list_head resource_list;
struct list_head param_list;
struct list_head region_list;
+ u32 snapshot_id;
struct devlink_dpipe_headers *dpipe_headers;
const struct devlink_ops *ops;
struct device *dev;
@@ -551,6 +552,7 @@ struct devlink_region *devlink_region_create(struct devlink *devlink,
u32 region_max_snapshots,
u64 region_size);
void devlink_region_destroy(struct devlink_region *region);
+u32 devlink_region_shapshot_id_get(struct devlink *devlink);
#else
@@ -792,6 +794,12 @@ static inline bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
{
}
+static inline u32
+devlink_region_shapshot_id_get(struct devlink *devlink)
+{
+ return 0;
+}
+
#endif
#endif /* _NET_DEVLINK_H_ */
@@ -4193,6 +4193,27 @@ void devlink_region_destroy(struct devlink_region *region)
}
EXPORT_SYMBOL_GPL(devlink_region_destroy);
+/**
+ * devlink_region_shapshot_id_get - get snapshot ID
+ *
+ * This callback should be called when adding a new snapshot,
+ * Driver should use the same id for multiple snapshots taken
+ * on multiple regions at the same time/by the same trigger.
+ *
+ * @devlink: devlink
+ */
+u32 devlink_region_shapshot_id_get(struct devlink *devlink)
+{
+ u32 id;
+
+ mutex_lock(&devlink->lock);
+ id = ++devlink->snapshot_id;
+ mutex_unlock(&devlink->lock);
+
+ return id;
+}
+EXPORT_SYMBOL_GPL(devlink_region_shapshot_id_get);
+
static int __init devlink_module_init(void)
{
return genl_register_family(&devlink_nl_family);