[PATCH net-next v3 1/4] net: dsa: Hook {get,set}_rxnfc ethtool operations

[Florian Fainelli <f.fainelli@gmail.com>]

In preparation for adding support for CFP/TCAMP in the bcm_sf2 driver add the
plumbing to call into driver specific {get,set}_rxnfc operations.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 include/net/dsa.h |  8 ++++++++
 net/dsa/slave.c   | 26 ++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/include/net/dsa.h b/include/net/dsa.h
index b951e2ebda75..d5d618c3de64 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -377,6 +377,14 @@ struct dsa_switch_ops {
 	int	(*port_mdb_dump)(struct dsa_switch *ds, int port,
 				 struct switchdev_obj_port_mdb *mdb,
 				 int (*cb)(struct switchdev_obj *obj));
+
+	/*
+	 * RXNFC
+	 */
+	int	(*get_rxnfc)(struct dsa_switch *ds, int port,
+			     struct ethtool_rxnfc *nfc, u32 *rule_locs);
+	int	(*set_rxnfc)(struct dsa_switch *ds, int port,
+			     struct ethtool_rxnfc *nfc);
 };
 
 struct dsa_switch_driver {
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 08725286f79d..6881889e1a9b 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1002,6 +1002,30 @@ void dsa_cpu_port_ethtool_init(struct ethtool_ops *ops)
 	ops->get_strings = dsa_cpu_port_get_strings;
 }
 
+static int dsa_slave_get_rxnfc(struct net_device *dev,
+			       struct ethtool_rxnfc *nfc, u32 *rule_locs)
+{
+	struct dsa_slave_priv *p = netdev_priv(dev);
+	struct dsa_switch *ds = p->dp->ds;
+
+	if (!ds->ops->get_rxnfc)
+		return -EOPNOTSUPP;
+
+	return ds->ops->get_rxnfc(ds, p->dp->index, nfc, rule_locs);
+}
+
+static int dsa_slave_set_rxnfc(struct net_device *dev,
+			       struct ethtool_rxnfc *nfc)
+{
+	struct dsa_slave_priv *p = netdev_priv(dev);
+	struct dsa_switch *ds = p->dp->ds;
+
+	if (!ds->ops->set_rxnfc)
+		return -EOPNOTSUPP;
+
+	return ds->ops->set_rxnfc(ds, p->dp->index, nfc);
+}
+
 static const struct ethtool_ops dsa_slave_ethtool_ops = {
 	.get_drvinfo		= dsa_slave_get_drvinfo,
 	.get_regs_len		= dsa_slave_get_regs_len,
@@ -1020,6 +1044,8 @@ 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_rxnfc		= dsa_slave_get_rxnfc,
+	.set_rxnfc		= dsa_slave_set_rxnfc,
 };
 
 static const struct net_device_ops dsa_slave_netdev_ops = {
-- 
2.9.3