net/mlx5e: Use rx_missed_errors instead of rx_dropped for reporting buffer exhaustion

[ Upstream commit 5c74195d5dd977e97556e6fa76909b831c241230 ]

Previously, the driver incorrectly used rx_dropped to report device
buffer exhaustion.

According to the documentation, rx_dropped should not be used to count
packets dropped due to buffer exhaustion, which is the purpose of
rx_missed_errors.

Use rx_missed_errors as intended for counting packets dropped due to
buffer exhaustion.

Fixes: 269e6b3af3bf ("net/mlx5e: Report additional error statistics in get stats ndo")
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 5673a4113253bddbd73ed8997e8d79a4ebe568b9..f1834853872da22a46b06df13be7eb7f874ef02d 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3695,7 +3695,7 @@ mlx5e_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
                mlx5e_fold_sw_stats64(priv, stats);
        }
 
-       stats->rx_dropped = priv->stats.qcnt.rx_out_of_buffer;
+       stats->rx_missed_errors = priv->stats.qcnt.rx_out_of_buffer;
 
        stats->rx_length_errors =
                PPORT_802_3_GET(pstats, a_in_range_length_errors) +