net: hns3: Fix an error of total drop packet statistics

The dropped tx/rx packets number of each tqp should also
be counted into the total drop tx/rx packets numbers.

Fixes: 76ad4f0ee74 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index a8e4406..eb9ac53 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1139,6 +1139,8 @@ hns3_nic_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
        u64 rx_bytes = 0;
        u64 tx_pkts = 0;
        u64 rx_pkts = 0;
+       u64 tx_drop = 0;
+       u64 rx_drop = 0;
 
        if (test_bit(HNS3_NIC_STATE_DOWN, &priv->state))
                return;
@@ -1152,6 +1154,8 @@ hns3_nic_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
                        start = u64_stats_fetch_begin_irq(&ring->syncp);
                        tx_bytes += ring->stats.tx_bytes;
                        tx_pkts += ring->stats.tx_pkts;
+                       tx_drop += ring->stats.tx_busy;
+                       tx_drop += ring->stats.sw_err_cnt;
                } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
 
                /* fetch the rx stats */
@@ -1160,6 +1164,9 @@ hns3_nic_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
                        start = u64_stats_fetch_begin_irq(&ring->syncp);
                        rx_bytes += ring->stats.rx_bytes;
                        rx_pkts += ring->stats.rx_pkts;
+                       rx_drop += ring->stats.non_vld_descs;
+                       rx_drop += ring->stats.err_pkt_len;
+                       rx_drop += ring->stats.l2_err;
                } while (u64_stats_fetch_retry_irq(&ring->syncp, start));
        }
 
@@ -1175,8 +1182,8 @@ hns3_nic_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
        stats->rx_missed_errors = netdev->stats.rx_missed_errors;
 
        stats->tx_errors = netdev->stats.tx_errors;
-       stats->rx_dropped = netdev->stats.rx_dropped;
-       stats->tx_dropped = netdev->stats.tx_dropped;
+       stats->rx_dropped = rx_drop + netdev->stats.rx_dropped;
+       stats->tx_dropped = tx_drop + netdev->stats.tx_dropped;
        stats->collisions = netdev->stats.collisions;
        stats->rx_over_errors = netdev->stats.rx_over_errors;
        stats->rx_frame_errors = netdev->stats.rx_frame_errors;