net: dsa: add {get, set}_wol callbacks to slave devices

Allow switch drivers to implement per-port Wake-on-LAN getter and
setters.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 31 insertions, 0 deletions

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 846dce4abaa5..d8054fb4a4df 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -212,6 +212,14 @@ struct dsa_switch_driver {
         int     (*get_sset_count)(struct dsa_switch *ds);
 
         /*
+         * ethtool Wake-on-LAN
+         */
+        void    (*get_wol)(struct dsa_switch *ds, int port,
+                           struct ethtool_wolinfo *w);
+        int     (*set_wol)(struct dsa_switch *ds, int port,
+                           struct ethtool_wolinfo *w);
+
+        /*
          * Suspend and resume
          */
         int     (*suspend)(struct dsa_switch *ds);
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 143811ef57ae..43c1e4ade689 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -301,6 +301,27 @@ static int dsa_slave_get_sset_count(struct net_device *dev, int sset)
         return -EOPNOTSUPP;
 }
 
+static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w)
+{
+        struct dsa_slave_priv *p = netdev_priv(dev);
+        struct dsa_switch *ds = p->parent;
+
+        if (ds->drv->get_wol)
+                ds->drv->get_wol(ds, p->port, w);
+}
+
+static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w)
+{
+        struct dsa_slave_priv *p = netdev_priv(dev);
+        struct dsa_switch *ds = p->parent;
+        int ret = -EOPNOTSUPP;
+
+        if (ds->drv->set_wol)
+                ret = ds->drv->set_wol(ds, p->port, w);
+
+        return ret;
+}
+
 static const struct ethtool_ops dsa_slave_ethtool_ops = {
         .get_settings           = dsa_slave_get_settings,
         .set_settings           = dsa_slave_set_settings,
@@ -310,6 +331,8 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = {
         .get_strings            = dsa_slave_get_strings,
         .get_ethtool_stats      = dsa_slave_get_ethtool_stats,
         .get_sset_count         = dsa_slave_get_sset_count,
+        .set_wol                = dsa_slave_set_wol,
+        .get_wol                = dsa_slave_get_wol,
 };
 
 static const struct net_device_ops dsa_slave_netdev_ops = {