diff --git a/include/net/devlink.h b/include/net/devlink.h index e5397652f2fb..f27d8593687a 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -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 @@ devlink_region_destroy(struct devlink_region *region) { } +static inline u32 +devlink_region_shapshot_id_get(struct devlink *devlink) +{ + return 0; +} + #endif #endif /* _NET_DEVLINK_H_ */ diff --git a/net/core/devlink.c b/net/core/devlink.c index cac856136ac6..6c92ddd2465d 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -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);