diff options
| author | Haiyang Zhang <haiyangz@microsoft.com> | 2022-02-04 14:45:44 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-25 15:18:40 +0200 |
| commit | 04dcef44f6f4dda2f097bbd32e4f4c59951dae56 (patch) | |
| tree | 162251f1648c1a031889b0c9232977f6da046693 | |
| parent | 7fd1d002852f93f5c03b3188f585245c50b52aea (diff) | |
net: mana: Add handling of CQE_RX_TRUNCATED
commit e4b7621982d29f26ff4d39af389e5e675a4ffed4 upstream.
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@microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/ethernet/microsoft/mana/mana_en.c | 7 |
1 files 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 030ae89f3a33..18dc64d7f412 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_en.c +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c @@ -980,8 +980,10 @@ 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"); @@ -1043,6 +1045,7 @@ 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); |