fbnic: Add handler for reporting link down event statistics

We were previously not displaying the number of link_down_events tracked by
the device. With this change we should now be able to display the value.
The value itself tracks the calls from the phylink interface to the
mac_link_down call.

Signed-off-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://patch.msgid.link/176374323824.959489.6915296616773178954.stgit@ahduyck-xeon-server.home.arpa
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c b/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c
index 95fac020eb93c7b05c06fdf194614cd2f4c159d7..693ebdf387055203d62de51d2b4f0994ec572ffa 100644 (file)
--- a/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c
@@ -1863,6 +1863,14 @@ fbnic_get_rmon_stats(struct net_device *netdev,
        *ranges = fbnic_rmon_ranges;
 }
 
+static void fbnic_get_link_ext_stats(struct net_device *netdev,
+                                    struct ethtool_link_ext_stats *stats)
+{
+       struct fbnic_net *fbn = netdev_priv(netdev);
+
+       stats->link_down_events = fbn->link_down_events;
+}
+
 static const struct ethtool_ops fbnic_ethtool_ops = {
        .cap_link_lanes_supported       = true,
        .supported_coalesce_params      = ETHTOOL_COALESCE_USECS |
@@ -1874,6 +1882,7 @@ static const struct ethtool_ops fbnic_ethtool_ops = {
        .get_regs_len                   = fbnic_get_regs_len,
        .get_regs                       = fbnic_get_regs,
        .get_link                       = ethtool_op_get_link,
+       .get_link_ext_stats             = fbnic_get_link_ext_stats,
        .get_coalesce                   = fbnic_get_coalesce,
        .set_coalesce                   = fbnic_set_coalesce,
        .get_ringparam                  = fbnic_get_ringparam,