switchdev: Pass original device to port netdev driver
switchdev drivers need to know the netdev on which the switchdev op was
invoked. For example, the STP state of a VLAN interface configured on top
of a port can change while being member in a bridge. In this case, the
underlying driver should only change the STP state of that particular
VLAN and not of all the VLANs configured on the port.
However, current switchdev infrastructure only passes the port netdev down
to the driver. Solve that by passing the original device down to the
driver as part of the required switchdev object / attribute.
This doesn't entail any change in current switchdev drivers. It simply
enables those supporting stacked devices to know the originating device
and act accordingly.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index a642bb8..82e3e97 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -135,6 +135,7 @@
{
struct switchdev_obj_port_fdb fdb = {
.obj = {
+ .orig_dev = f->dst->dev,
.id = SWITCHDEV_OBJ_ID_PORT_FDB,
.flags = SWITCHDEV_F_DEFER,
},
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 5f3f645..b3cca12 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -40,6 +40,7 @@
void br_set_state(struct net_bridge_port *p, unsigned int state)
{
struct switchdev_attr attr = {
+ .orig_dev = p->dev,
.id = SWITCHDEV_ATTR_ID_PORT_STP_STATE,
.flags = SWITCHDEV_F_DEFER,
.u.stp_state = state,
@@ -570,6 +571,7 @@
int br_set_ageing_time(struct net_bridge *br, u32 ageing_time)
{
struct switchdev_attr attr = {
+ .orig_dev = br->dev,
.id = SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
.flags = SWITCHDEV_F_SKIP_EOPNOTSUPP,
.u.ageing_time = ageing_time,
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 5396ff08..775e00f 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -37,6 +37,7 @@
void br_init_port(struct net_bridge_port *p)
{
struct switchdev_attr attr = {
+ .orig_dev = p->dev,
.id = SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME,
.flags = SWITCHDEV_F_SKIP_EOPNOTSUPP | SWITCHDEV_F_DEFER,
.u.ageing_time = p->br->ageing_time,
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 1394da6..66c4549 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -73,6 +73,7 @@
u16 vid, u16 flags)
{
struct switchdev_obj_port_vlan v = {
+ .obj.orig_dev = dev,
.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
.flags = flags,
.vid_begin = vid,
@@ -120,6 +121,7 @@
u16 vid)
{
struct switchdev_obj_port_vlan v = {
+ .obj.orig_dev = dev,
.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
.vid_begin = vid,
.vid_end = vid,