[PATCH AUTOSEL 4.14 23/27] net: bcmgenet: correct per TX/RX ring statistics

From: Sasha Levin
Date: Thu Apr 30 2020 - 09:59:39 EST


From: Doug Berger <opendmb@xxxxxxxxx>

[ Upstream commit a6d0b83f25073bdf08b8547aeff961a62c6ab229 ]

The change to track net_device_stats per ring to better support SMP
missed updating the rx_dropped member.

The ndo_get_stats method is also needed to combine the results for
ethtool statistics (-S) before filling in the ethtool structure.

Fixes: 37a30b435b92 ("net: bcmgenet: Track per TX/RX rings statistics")
Signed-off-by: Doug Berger <opendmb@xxxxxxxxx>
Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 3e3044fe32066..4b3660c63b864 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -973,6 +973,8 @@ static void bcmgenet_get_ethtool_stats(struct net_device *dev,
if (netif_running(dev))
bcmgenet_update_mib_counters(priv);

+ dev->netdev_ops->ndo_get_stats(dev);
+
for (i = 0; i < BCMGENET_STATS_LEN; i++) {
const struct bcmgenet_stats *s;
char *p;
@@ -3215,6 +3217,7 @@ static struct net_device_stats *bcmgenet_get_stats(struct net_device *dev)
dev->stats.rx_packets = rx_packets;
dev->stats.rx_errors = rx_errors;
dev->stats.rx_missed_errors = rx_errors;
+ dev->stats.rx_dropped = rx_dropped;
return &dev->stats;
}

--
2.20.1