net: dsa: add get_pause_stats support

Add support for pause stats

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 33283ee..ea7bf00 100644 (file)
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -895,6 +895,8 @@ struct dsa_switch_ops {
                                  const struct ethtool_rmon_hist_range **ranges);
        void    (*get_stats64)(struct dsa_switch *ds, int port,
                                   struct rtnl_link_stats64 *s);
+       void    (*get_pause_stats)(struct dsa_switch *ds, int port,
+                                  struct ethtool_pause_stats *pause_stats);
        void    (*self_test)(struct dsa_switch *ds, int port,
                             struct ethtool_test *etest, u64 *data);
 

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 760ca58..ad6a666 100644 (file)
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1109,6 +1109,16 @@ static int dsa_slave_set_link_ksettings(struct net_device *dev,
        return phylink_ethtool_ksettings_set(dp->pl, cmd);
 }
 
+static void dsa_slave_get_pause_stats(struct net_device *dev,
+                                 struct ethtool_pause_stats *pause_stats)
+{
+       struct dsa_port *dp = dsa_slave_to_port(dev);
+       struct dsa_switch *ds = dp->ds;
+
+       if (ds->ops->get_pause_stats)
+               ds->ops->get_pause_stats(ds, dp->index, pause_stats);
+}
+
 static void dsa_slave_get_pauseparam(struct net_device *dev,
                                     struct ethtool_pauseparam *pause)
 {
@@ -2100,6 +2110,7 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = {
        .get_eee                = dsa_slave_get_eee,
        .get_link_ksettings     = dsa_slave_get_link_ksettings,
        .set_link_ksettings     = dsa_slave_set_link_ksettings,
+       .get_pause_stats        = dsa_slave_get_pause_stats,
        .get_pauseparam         = dsa_slave_get_pauseparam,
        .set_pauseparam         = dsa_slave_set_pauseparam,
        .get_rxnfc              = dsa_slave_get_rxnfc,