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Subject[RFC 1/9] net: dsa: add basic support for switchdev obj
Date
This patch adds the switchdev operations to add and delete switchdev
objects. This will be necessary to add fdb or VLAN entries.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
net/dsa/slave.c | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 04ffad3..cbda00a 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -363,6 +363,43 @@ static int dsa_slave_port_attr_set(struct net_device *dev,
return ret;
}

+static int dsa_slave_port_obj_add(struct net_device *dev,
+ struct switchdev_obj *obj)
+{
+ int err;
+
+ /*
+ * Skip the prepare phase, since currently the DSA drivers don't need to
+ * allocate any memory for operations and they will not fail to HW
+ * (unless something horrible goes wrong on the MDIO bus, in which case
+ * the prepare phase wouldn't have been able to predict anyway).
+ */
+ if (obj->trans != SWITCHDEV_TRANS_COMMIT)
+ return 0;
+
+ switch (obj->id) {
+ default:
+ err = -ENOTSUPP;
+ break;
+ }
+
+ return err;
+}
+
+static int dsa_slave_port_obj_del(struct net_device *dev,
+ struct switchdev_obj *obj)
+{
+ int err;
+
+ switch (obj->id) {
+ default:
+ err = -EOPNOTSUPP;
+ break;
+ }
+
+ return err;
+}
+
static int dsa_slave_bridge_port_join(struct net_device *dev,
struct net_device *br)
{
@@ -702,6 +739,8 @@ static const struct net_device_ops dsa_slave_netdev_ops = {
static const struct switchdev_ops dsa_slave_switchdev_ops = {
.switchdev_port_attr_get = dsa_slave_port_attr_get,
.switchdev_port_attr_set = dsa_slave_port_attr_set,
+ .switchdev_port_obj_add = dsa_slave_port_obj_add,
+ .switchdev_port_obj_del = dsa_slave_port_obj_del,
};

static void dsa_slave_adjust_link(struct net_device *dev)
--
2.4.1


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