[PATCH net-next v2 1/3] net: dsa: add port_fdb_prepare

Vivien Didelot
2015-10-08T15:35:12Z

Push the prepare phase for FDB operations down to the DSA drivers, with
a new port_fdb_prepare function. Currently only mv88e6xxx is affected.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
---
drivers/net/dsa/mv88e6171.c | 1 +
drivers/net/dsa/mv88e6352.c | 1 +
drivers/net/dsa/mv88e6xxx.c | 10 ++++++++++
drivers/net/dsa/mv88e6xxx.h | 3 +++
include/net/dsa.h | 6 ++++++
net/dsa/slave.c | 7 +++++--
6 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index c95cfab..ca3330a 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -121,6 +121,7 @@ struct dsa_switch_driver mv88e6171_switch_driver = {
.port_vlan_add = mv88e6xxx_port_vlan_add,
.port_vlan_del = mv88e6xxx_port_vlan_del,
.vlan_getnext = mv88e6xxx_vlan_getnext,
+ .port_fdb_prepare = mv88e6xxx_port_fdb_prepare,
.port_fdb_add = mv88e6xxx_port_fdb_add,
.port_fdb_del = mv88e6xxx_port_fdb_del,
.port_fdb_getnext = mv88e6xxx_port_fdb_getnext,
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index 3736706..078a358 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -348,6 +348,7 @@ struct dsa_switch_driver mv88e6352_switch_driver = {
.port_vlan_add = mv88e6xxx_port_vlan_add,
.port_vlan_del = mv88e6xxx_port_vlan_del,
.vlan_getnext = mv88e6xxx_vlan_getnext,
+ .port_fdb_prepare = mv88e6xxx_port_fdb_prepare,
.port_fdb_add = mv88e6xxx_port_fdb_add,
.port_fdb_del = mv88e6xxx_port_fdb_del,
.port_fdb_getnext = mv88e6xxx_port_fdb_getnext,
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index 6053d11..9fbb727 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -1841,6 +1841,16 @@ static int _mv88e6xxx_port_fdb_load(struct dsa_switch *ds, int port,
return _mv88e6xxx_atu_load(ds, &entry);
}

+int mv88e6xxx_port_fdb_prepare(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_fdb *fdb,
+ struct switchdev_trans *trans)
+{
+ /* We don't need any dynamic resource from the kernel (yet),
+ * so skip the prepare phase.
+ */
+ return 0;
+}
+
int mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port,
const unsigned char *addr, u16 vid)
{
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index 39b261f..4475640 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -479,6 +479,9 @@ int mv88e6xxx_port_vlan_add(struct dsa_switch *ds, int port, u16 vid,
int mv88e6xxx_port_vlan_del(struct dsa_switch *ds, int port, u16 vid);
int mv88e6xxx_vlan_getnext(struct dsa_switch *ds, u16 *vid,
unsigned long *ports, unsigned long *untagged);
+int mv88e6xxx_port_fdb_prepare(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_fdb *fdb,
+ struct switchdev_trans *trans);
int mv88e6xxx_port_fdb_add(struct dsa_switch *ds, int port,
const unsigned char *addr, u16 vid);
int mv88e6xxx_port_fdb_del(struct dsa_switch *ds, int port,
diff --git a/include/net/dsa.h b/include/net/dsa.h
index b34d812..4f66f84 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -197,6 +197,9 @@ static inline u8 dsa_upstream_port(struct dsa_switch *ds)
return ds->pd->rtable[dst->cpu_switch];
}

+struct switchdev_trans;
+struct switchdev_obj_port_fdb;
+
struct dsa_switch_driver {
struct list_head list;

@@ -316,6 +319,9 @@ struct dsa_switch_driver {
/*
* Forwarding database
*/
+ int (*port_fdb_prepare)(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_fdb *fdb,
+ struct switchdev_trans *trans);
int (*port_fdb_add)(struct dsa_switch *ds, int port,
const unsigned char *addr, u16 vid);
int (*port_fdb_del)(struct dsa_switch *ds, int port,
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 4f607bc..48e8c15 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -346,10 +346,13 @@ static int dsa_slave_port_fdb_add(struct net_device *dev,
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
- int ret = -EOPNOTSUPP;
+ int ret;
+
+ if (!ds->drv->port_fdb_prepare || !ds->drv->port_fdb_add)
+ return -EOPNOTSUPP;

if (switchdev_trans_ph_prepare(trans))
- ret = ds->drv->port_fdb_add ? 0 : -EOPNOTSUPP;
+ ret = ds->drv->port_fdb_prepare(ds, p->port, fdb, trans);
else
ret = ds->drv->port_fdb_add(ds, p->port, fdb->addr, fdb->vid);

--
2.6.0