On Tue, 30 Mar 2021 10:49:48 +0800 Ong Boon Leong wrote:
> + __netif_tx_lock(nq, cpu);
> + res = stmmac_xdp_xmit_xdpf(priv, queue, xdpf);
> + if (res == STMMAC_XDP_TX) {
> + stmmac_flush_tx_descriptors(priv, queue);
> + stmmac_tx_timer_arm(priv, queue);
> + }
> + __netif_tx_unlock(nq);
You may want to update nq->trans_start, see commit ec107e775d843
