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authorPetr Machata <petrm@mellanox.com>2018-05-30 04:00:45 +0300
committerDavid S. Miller <davem@davemloft.net>2018-05-31 21:13:44 +0300
commit9c86ce2c1ae337fc10568a12aea812ed03de8319 (patch)
tree894ecca9ea6eb719e2d569086938ef8b7fa6439f /net/bridge/br_vlan.c
parenta73bceb86df8f1e007b7f7691d7e38bb29601943 (diff)
downloadlinux-9c86ce2c1ae337fc10568a12aea812ed03de8319.tar.xz
net: bridge: Notify about bridge VLANs
A driver might need to react to changes in settings of brentry VLANs. Therefore send switchdev port notifications for these as well. Reuse SWITCHDEV_OBJ_ID_PORT_VLAN for this purpose. Listeners should use netif_is_bridge_master() on orig_dev to determine whether the notification is about a bridge port or a bridge. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_vlan.c')
-rw-r--r--net/bridge/br_vlan.c28
1 files changed, 25 insertions, 3 deletions
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 602c869c9821..7df269092103 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -246,6 +246,10 @@ static int __vlan_add(struct net_bridge_vlan *v, u16 flags)
goto out_filt;
v->brvlan = masterv;
v->stats = masterv->stats;
+ } else {
+ err = br_switchdev_port_vlan_add(dev, v->vid, flags);
+ if (err && err != -EOPNOTSUPP)
+ goto out;
}
/* Add the dev mac and count the vlan only if it's usable */
@@ -281,6 +285,8 @@ out_filt:
br_vlan_put_master(masterv);
v->brvlan = NULL;
}
+ } else {
+ br_switchdev_port_vlan_del(dev, v->vid);
}
goto out;
@@ -306,6 +312,11 @@ static int __vlan_del(struct net_bridge_vlan *v)
err = __vlan_vid_del(p->dev, p->br, v->vid);
if (err)
goto out;
+ } else {
+ err = br_switchdev_port_vlan_del(v->br->dev, v->vid);
+ if (err && err != -EOPNOTSUPP)
+ goto out;
+ err = 0;
}
if (br_vlan_should_use(v)) {
@@ -558,16 +569,22 @@ static int br_vlan_add_existing(struct net_bridge *br,
{
int err;
+ err = br_switchdev_port_vlan_add(br->dev, vlan->vid, flags);
+ if (err && err != -EOPNOTSUPP)
+ return err;
+
if (!br_vlan_is_brentry(vlan)) {
/* Trying to change flags of non-existent bridge vlan */
- if (!(flags & BRIDGE_VLAN_INFO_BRENTRY))
- return -EINVAL;
+ if (!(flags & BRIDGE_VLAN_INFO_BRENTRY)) {
+ err = -EINVAL;
+ goto err_flags;
+ }
/* It was only kept for port vlans, now make it real */
err = br_fdb_insert(br, NULL, br->dev->dev_addr,
vlan->vid);
if (err) {
br_err(br, "failed to insert local address into bridge forwarding table\n");
- return err;
+ goto err_fdb_insert;
}
refcount_inc(&vlan->refcnt);
@@ -580,6 +597,11 @@ static int br_vlan_add_existing(struct net_bridge *br,
*changed = true;
return 0;
+
+err_fdb_insert:
+err_flags:
+ br_switchdev_port_vlan_del(br->dev, vlan->vid);
+ return err;
}
/* Must be protected by RTNL.