}
EXPORT_SYMBOL(rdma_restrack_get);
+/**
+ * rdma_restrack_get_byid() - translate from ID to restrack object
+ * @dev: IB device
+ * @type: resource track type
+ * @id: ID to take a look
+ *
+ * Return: Pointer to restrack entry or -ENOENT in case of error.
+ */
+struct rdma_restrack_entry *
+rdma_restrack_get_byid(struct ib_device *dev,
+ enum rdma_restrack_type type, u32 id)
+{
+ struct rdma_restrack_root *rt = &dev->res;
+ struct rdma_restrack_entry *res;
+
+ down_read(&dev->res.rwsem);
+ res = xa_load(&rt->xa[type], id);
+ if (!res || !rdma_restrack_get(res))
+ res = ERR_PTR(-ENOENT);
+ up_read(&dev->res.rwsem);
+
+ return res;
+}
+EXPORT_SYMBOL(rdma_restrack_get_byid);
+
static void restrack_release(struct kref *kref)
{
struct rdma_restrack_entry *res;
int rdma_nl_put_driver_u64(struct sk_buff *msg, const char *name, u64 value);
int rdma_nl_put_driver_u64_hex(struct sk_buff *msg, const char *name,
u64 value);
+struct rdma_restrack_entry *rdma_restrack_get_byid(struct ib_device *dev,
+ enum rdma_restrack_type type,
+ u32 id);
#endif /* _RDMA_RESTRACK_H_ */