Commit e4b76219 authored by Haiyang Zhang's avatar Haiyang Zhang Committed by David S. Miller
Browse files

net: mana: Add handling of CQE_RX_TRUNCATED 



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: default avatarHaiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: default avatarDexuan Cui <decui@microsoft.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8f4f9c93

drivers/net/ethernet/microsoft/mana/mana_en.c

+5 −2
Original line number Diff line number Diff line
@@ -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);