ixl_disable_rx_ring
int ixl_disable_rx_ring(struct ixl_pf *, struct ixl_pf_qtag *, u16);
error = ixl_disable_rx_ring(pf, qtag, i);
error = ixl_disable_rx_ring(pf, &vf->qtag, i);
error = ixl_disable_rx_ring(pf, qtag, vsi_qidx);