sr_pushed
level = srp->sr_pushed - srp->sr_completed;
level = srp->sr_pushed - srp->sr_completed;
srp->sr_pushed = 0;
efx_rx_qpush(srp->sr_erp, srp->sr_added, &srp->sr_pushed);
efx_rx_qpush(srp->sr_erp, srp->sr_added, &srp->sr_pushed);