lookup_stid
t3c_tid = lookup_stid(&(T3C_DATA(dev))->tid_maps, stid);
t3c_tid = lookup_stid(t, stid);
cnp = lookup_stid(t, stid);
struct cxgbit_np *cnp = lookup_stid(t, stid);
struct cxgbit_np *cnp = lookup_stid(t, stid);