[PATCH AUTOSEL 4.19 244/671] net/mlx5e: IPoIB, Fix RX checksum statistics update

Sasha Levin
2020-01-16T17:04:33Z

From: Feras Daoud <ferasda@mellanox.com>

[ Upstream commit 3d6f3cdf9bfe92c430674308db0f1c8655f2c11d ]

Update the RX checksum only if the feature is enabled.

Fixes: 9d6bd752c63c ("net/mlx5e: IPoIB, RX handler")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 9cbc4173973e..044687a1f27c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -1364,8 +1364,14 @@ static inline void mlx5i_complete_rx_cqe(struct mlx5e_rq *rq,

skb->protocol = *((__be16 *)(skb->data));

- skb->ip_summed = CHECKSUM_COMPLETE;
- skb->csum = csum_unfold((__force __sum16)cqe->check_sum);
+ if (netdev->features & NETIF_F_RXCSUM) {
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ skb->csum = csum_unfold((__force __sum16)cqe->check_sum);
+ stats->csum_complete++;
+ } else {
+ skb->ip_summed = CHECKSUM_NONE;
+ stats->csum_none++;
+ }

if (unlikely(mlx5e_rx_hw_stamp(tstamp)))
skb_hwtstamps(skb)->hwtstamp =
@@ -1384,7 +1390,6 @@ static inline void mlx5i_complete_rx_cqe(struct mlx5e_rq *rq,

skb->dev = netdev;

- stats->csum_complete++;
stats->packets++;
stats->bytes += cqe_bcnt;
}
--
2.20.1