net/mlx5e: IPoIB, Use correct timestamp in child receive flow

The current implementation takes the child timestamp object from
the parent since the rq in mlx5i_complete_rx_cqe belongs to the parent.
This change fixes the issue by taking the correct timestamp.

Fixes: 7e7f4780c340 ("net/mlx5e: IPoIB, Use hash-table to map between QPN to child netdev")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 90354e676f0d118655ab595bb986127b40d64ae0..ff234dfefc27cdd2ae22e3611990fe789f2c03bb 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -1175,7 +1175,9 @@ static inline void mlx5i_complete_rx_cqe(struct mlx5e_rq *rq,
                                         u32 cqe_bcnt,
                                         struct sk_buff *skb)
 {
+       struct hwtstamp_config *tstamp;
        struct net_device *netdev;
+       struct mlx5e_priv *priv;
        char *pseudo_header;
        u32 qpn;
        u8 *dgid;
@@ -1194,6 +1196,9 @@ static inline void mlx5i_complete_rx_cqe(struct mlx5e_rq *rq,
                return;
        }
 
+       priv = mlx5i_epriv(netdev);
+       tstamp = &priv->tstamp;
+
        g = (be32_to_cpu(cqe->flags_rqpn) >> 28) & 3;
        dgid = skb->data + MLX5_IB_GRH_DGID_OFFSET;
        if ((!g) || dgid[0] != 0xff)
@@ -1214,7 +1219,7 @@ static inline void mlx5i_complete_rx_cqe(struct mlx5e_rq *rq,
        skb->ip_summed = CHECKSUM_COMPLETE;
        skb->csum = csum_unfold((__force __sum16)cqe->check_sum);
 
-       if (unlikely(mlx5e_rx_hw_stamp(rq->tstamp)))
+       if (unlikely(mlx5e_rx_hw_stamp(tstamp)))
                skb_hwtstamps(skb)->hwtstamp =
                                mlx5_timecounter_cyc2time(rq->clock, get_cqe_ts(cqe));