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vxlan: don't flush static fdb entries on admin down

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This patch skips flushing static fdb entries in
ndo_stop, but flushes all fdb entries during vxlan
device delete. This is consistent with the bridge
driver fdb

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Roopa Prabhu 2017-01-23 20:44:32 -08:00 committed by David S. Miller
parent a824d0b831
commit 8b3f9337e1
1 changed files with 6 additions and 2 deletions
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8
drivers/net/vxlan.c
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@ -2354,7 +2354,7 @@ static int vxlan_open(struct net_device *dev)
}
/* Purge the forwarding table */
static void vxlan_flush(struct vxlan_dev *vxlan)
static void vxlan_flush(struct vxlan_dev *vxlan, bool do_all)
{
unsigned int h;
@ -2364,6 +2364,8 @@ static void vxlan_flush(struct vxlan_dev *vxlan)
hlist_for_each_safe(p, n, &vxlan->fdb_head[h]) {
struct vxlan_fdb *f
= container_of(p, struct vxlan_fdb, hlist);
if (!do_all && (f->state & (NUD_PERMANENT | NUD_NOARP)))
continue;
/* the all_zeros_mac entry is deleted at vxlan_uninit */
if (!is_zero_ether_addr(f->eth_addr))
vxlan_fdb_destroy(vxlan, f);
@ -2385,7 +2387,7 @@ static int vxlan_stop(struct net_device *dev)
del_timer_sync(&vxlan->age_timer);
vxlan_flush(vxlan);
vxlan_flush(vxlan, false);
vxlan_sock_release(vxlan);
return ret;
@ -3058,6 +3060,8 @@ static void vxlan_dellink(struct net_device *dev, struct list_head *head)
struct vxlan_dev *vxlan = netdev_priv(dev);
struct vxlan_net *vn = net_generic(vxlan->net, vxlan_net_id);
vxlan_flush(vxlan, true);
spin_lock(&vn->sock_lock);
if (!hlist_unhashed(&vxlan->hlist))
hlist_del_rcu(&vxlan->hlist);