netdev - [PATCH v4 net-next 4/6] net: dsa: slave: Handle switchdev host mdb add/del

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Date:   Thu,  9 Nov 2017 23:11:00 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     David Miller <davem@...emloft.net>
Cc:     Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        netdev <netdev@...r.kernel.org>, Andrew Lunn <andrew@...n.ch>
Subject: [PATCH v4 net-next 4/6] net: dsa: slave: Handle switchdev host mdb add/del

Add code to handle switchdev host mdb add/del. Since DSA uses one of
the switch ports as a transport to the host, we just need to add an
MDB on this port.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
 net/dsa/slave.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 9ecd8f85ea29..d6e7a642493b 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -304,6 +304,13 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
 	case SWITCHDEV_OBJ_ID_PORT_MDB:
 		err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans);
 		break;
+	case SWITCHDEV_OBJ_ID_HOST_MDB:
+		/* DSA can directly translate this to a normal MDB add,
+		 * but on the CPU port.
+		 */
+		err = dsa_port_mdb_add(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj),
+				       trans);
+		break;
 	case SWITCHDEV_OBJ_ID_PORT_VLAN:
 		err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj),
 					trans);
@@ -326,6 +333,12 @@ static int dsa_slave_port_obj_del(struct net_device *dev,
 	case SWITCHDEV_OBJ_ID_PORT_MDB:
 		err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
 		break;
+	case SWITCHDEV_OBJ_ID_HOST_MDB:
+		/* DSA can directly translate this to a normal MDB add,
+		 * but on the CPU port.
+		 */
+		err = dsa_port_mdb_del(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj));
+		break;
 	case SWITCHDEV_OBJ_ID_PORT_VLAN:
 		err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj));
 		break;
-- 
2.15.0