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net: dsa: Handle SWITCHDEV_PORT_ATTR_SET 

Following patches will change the way we communicate setting a port's
attribute and use notifiers towards that goal.

Prepare DSA to support receiving notifier events targeting
SWITCHDEV_PORT_ATTR_SET from both atomic and process context and use a
small helper to translate the event notifier into something that
dsa_slave_port_attr_set() can process.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2019-02-27 11:44:27 -08:00 committed by David S. Miller
parent 4f7054867c
commit 9ed1eced2d
1 changed files with 18 additions and 0 deletions
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18
net/dsa/slave.c
View File

@ -1524,6 +1524,19 @@ static int dsa_slave_netdevice_event(struct notifier_block *nb,
return NOTIFY_DONE;
}
static int
dsa_slave_switchdev_port_attr_set_event(struct net_device *netdev,
struct switchdev_notifier_port_attr_info *port_attr_info)
{
int err;
err = dsa_slave_port_attr_set(netdev, port_attr_info->attr,
port_attr_info->trans);
port_attr_info->handled = true;
return notifier_from_errno(err);
}
struct dsa_switchdev_event_work {
struct work_struct work;
struct switchdev_notifier_fdb_info fdb_info;
@ -1602,6 +1615,9 @@ static int dsa_slave_switchdev_event(struct notifier_block *unused,
if (!dsa_slave_dev_check(dev))
return NOTIFY_DONE;
if (event == SWITCHDEV_PORT_ATTR_SET)
return dsa_slave_switchdev_port_attr_set_event(dev, ptr);
switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
if (!switchdev_work)
return NOTIFY_BAD;
@ -1664,6 +1680,8 @@ static int dsa_slave_switchdev_blocking_event(struct notifier_block *unused,
case SWITCHDEV_PORT_OBJ_ADD: /* fall through */
case SWITCHDEV_PORT_OBJ_DEL:
return dsa_slave_switchdev_port_obj_event(event, dev, ptr);
case SWITCHDEV_PORT_ATTR_SET:
return dsa_slave_switchdev_port_attr_set_event(dev, ptr);
}
return NOTIFY_DONE;