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rocker: use change upper info

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Since now information about changed upper is passed along, benefit from
that and use this info directly.

This also fixes possible issues that could happen when non-master device
is added (current code does not distinguish between master and non-master
upper device).

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Scott Feldman <sfeldma@gmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2015-08-27 09:31:23 +02:00 committed by David S. Miller
parent fb4bf21434
commit 686ed3047e
1 changed files with 39 additions and 24 deletions
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63
drivers/net/ethernet/rocker/rocker.c
View file

@ -5326,46 +5326,61 @@ static int rocker_port_ovs_changed(struct rocker_port *rocker_port,
return err;
}
static int rocker_port_master_changed(struct net_device *dev)
static int rocker_port_master_linked(struct rocker_port *rocker_port,
struct net_device *master)
{
struct rocker_port *rocker_port = netdev_priv(dev);
struct net_device *master = netdev_master_upper_dev_get(dev);
int err = 0;
/* N.B: Do nothing if the type of master is not supported */
if (master) {
if (netif_is_bridge_master(master))
err = rocker_port_bridge_join(rocker_port, master);
else if (netif_is_ovs_master(master))
err = rocker_port_ovs_changed(rocker_port, master);
} else if (rocker_port_is_bridged(rocker_port)) {
err = rocker_port_bridge_leave(rocker_port);
} else if (rocker_port_is_ovsed(rocker_port)) {
err = rocker_port_ovs_changed(rocker_port, NULL);
}
if (netif_is_bridge_master(master))
err = rocker_port_bridge_join(rocker_port, master);
else if (netif_is_ovs_master(master))
err = rocker_port_ovs_changed(rocker_port, master);
return err;
}
static int rocker_port_master_unlinked(struct rocker_port *rocker_port)
{
int err = 0;
if (rocker_port_is_bridged(rocker_port))
err = rocker_port_bridge_leave(rocker_port);
else if (rocker_port_is_ovsed(rocker_port))
err = rocker_port_ovs_changed(rocker_port, NULL);
return err;
}
static int rocker_netdevice_event(struct notifier_block *unused,
unsigned long event, void *ptr)
{
struct net_device *dev;
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
struct netdev_notifier_changeupper_info *info;
struct rocker_port *rocker_port;
int err;
if (!rocker_port_dev_check(dev))
return NOTIFY_DONE;
switch (event) {
case NETDEV_CHANGEUPPER:
dev = netdev_notifier_info_to_dev(ptr);
if (!rocker_port_dev_check(dev))
return NOTIFY_DONE;
err = rocker_port_master_changed(dev);
if (err)
netdev_warn(dev,
"failed to reflect master change (err %d)\n",
err);
info = ptr;
if (!info->master)
goto out;
rocker_port = netdev_priv(dev);
if (info->linking) {
err = rocker_port_master_linked(rocker_port,
info->upper_dev);
if (err)
netdev_warn(dev, "failed to reflect master linked (err %d)\n",
err);
} else {
err = rocker_port_master_unlinked(rocker_port);
if (err)
netdev_warn(dev, "failed to reflect master unlinked (err %d)\n",
err);
}
break;
}
out:
return NOTIFY_DONE;
}