* @tc: the request fcall structure
* @rc: the response fcall structure
* @aux: transport specific data (provided for trans_fd migration)
- * @tag: tag on request (BUG: redundant)
* @req_list: link for higher level objects to chain requests
*
* Transport use an array to track outstanding requests
u16 flush_tag;
void *aux;
- int tag;
struct list_head req_list;
};