net: dsa: add support for ethtool get_rmon_stats()

Add support to allow dsa drivers to specify the .get_rmon_stats()
operation.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 14f0727..64da5ed 100644 (file)
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -888,6 +888,9 @@ struct dsa_switch_ops {
                                     struct ethtool_eth_mac_stats *mac_stats);
        void    (*get_eth_ctrl_stats)(struct dsa_switch *ds, int port,
                                      struct ethtool_eth_ctrl_stats *ctrl_stats);
+       void    (*get_rmon_stats)(struct dsa_switch *ds, int port,
+                                 struct ethtool_rmon_stats *rmon_stats,
+                                 const struct ethtool_rmon_hist_range **ranges);
        void    (*get_stats64)(struct dsa_switch *ds, int port,
                                   struct rtnl_link_stats64 *s);
        void    (*self_test)(struct dsa_switch *ds, int port,

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 509b98d..760ca58 100644 (file)
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1002,6 +1002,18 @@ dsa_slave_get_eth_ctrl_stats(struct net_device *dev,
                ds->ops->get_eth_ctrl_stats(ds, dp->index, ctrl_stats);
 }
 
+static void
+dsa_slave_get_rmon_stats(struct net_device *dev,
+                        struct ethtool_rmon_stats *rmon_stats,
+                        const struct ethtool_rmon_hist_range **ranges)
+{
+       struct dsa_port *dp = dsa_slave_to_port(dev);
+       struct dsa_switch *ds = dp->ds;
+
+       if (ds->ops->get_rmon_stats)
+               ds->ops->get_rmon_stats(ds, dp->index, rmon_stats, ranges);
+}
+
 static void dsa_slave_net_selftest(struct net_device *ndev,
                                   struct ethtool_test *etest, u64 *buf)
 {
@@ -2081,6 +2093,7 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = {
        .get_eth_phy_stats      = dsa_slave_get_eth_phy_stats,
        .get_eth_mac_stats      = dsa_slave_get_eth_mac_stats,
        .get_eth_ctrl_stats     = dsa_slave_get_eth_ctrl_stats,
+       .get_rmon_stats         = dsa_slave_get_rmon_stats,
        .set_wol                = dsa_slave_set_wol,
        .get_wol                = dsa_slave_get_wol,
        .set_eee                = dsa_slave_set_eee,