The proper way to drop this kind of CQE is advancing rxq tail without indicating the packet to the upper network layer. Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx> --- drivers/net/ethernet/microsoft/mana/mana_en.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c index 69e791e6abc4..d2481a500654 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_en.c +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c @@ -1085,8 +1085,10 @@ static void mana_process_rx_cqe(struct mana_rxq *rxq, struct mana_cq *cq, break; case CQE_RX_TRUNCATED: - netdev_err(ndev, "Dropped a truncated packet\n"); - return; + ++ndev->stats.rx_dropped; + rxbuf_oob = &rxq->rx_oobs[rxq->buf_index]; + netdev_warn_once(ndev, "Dropped a truncated packet\n"); + goto drop; case CQE_RX_COALESCED_4: netdev_err(ndev, "RX coalescing is unsupported\n"); @@ -1154,6 +1156,7 @@ static void mana_process_rx_cqe(struct mana_rxq *rxq, struct mana_cq *cq, mana_rx_skb(old_buf, oob, rxq); +drop: mana_move_wq_tail(rxq->gdma_rq, rxbuf_oob->wqe_inf.wqe_size_in_bu); mana_post_pkt_rxq(rxq); -- 2.25.1
