diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_rx.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 42 |
1 files changed, 33 insertions, 9 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index 9bb88f660aca..caea0621ab73 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -151,6 +151,38 @@ static inline void mlx5e_skb_set_hash(struct mlx5_cqe64 *cqe, skb_set_hash(skb, be32_to_cpu(cqe->rss_hash_result), ht); } +static inline bool is_first_ethertype_ip(struct sk_buff *skb) +{ + __be16 ethertype = ((struct ethhdr *)skb->data)->h_proto; + + return (ethertype == htons(ETH_P_IP) || ethertype == htons(ETH_P_IPV6)); +} + +static inline void mlx5e_handle_csum(struct net_device *netdev, + struct mlx5_cqe64 *cqe, + struct mlx5e_rq *rq, + struct sk_buff *skb) +{ + if (unlikely(!(netdev->features & NETIF_F_RXCSUM))) + goto csum_none; + + if (likely(cqe->hds_ip_ext & CQE_L4_OK)) { + skb->ip_summed = CHECKSUM_UNNECESSARY; + } else if (is_first_ethertype_ip(skb)) { + skb->ip_summed = CHECKSUM_COMPLETE; + skb->csum = csum_unfold(cqe->check_sum); + rq->stats.csum_sw++; + } else { + goto csum_none; + } + + return; + +csum_none: + skb->ip_summed = CHECKSUM_NONE; + rq->stats.csum_none++; +} + static inline void mlx5e_build_rx_skb(struct mlx5_cqe64 *cqe, struct mlx5e_rq *rq, struct sk_buff *skb) @@ -169,15 +201,7 @@ static inline void mlx5e_build_rx_skb(struct mlx5_cqe64 *cqe, rq->stats.lro_bytes += cqe_bcnt; } - if (likely(netdev->features & NETIF_F_RXCSUM) && - (cqe->hds_ip_ext & CQE_L2_OK) && - (cqe->hds_ip_ext & CQE_L3_OK) && - (cqe->hds_ip_ext & CQE_L4_OK)) { - skb->ip_summed = CHECKSUM_UNNECESSARY; - } else { - skb->ip_summed = CHECKSUM_NONE; - rq->stats.csum_none++; - } + mlx5e_handle_csum(netdev, cqe, rq, skb); skb->protocol = eth_type_trans(skb, netdev); |