Commit 80fd2d6c authored Jul 10, 2018 by Travis Brown Committed by David S. Miller Jul 11, 2018

macvlan: Change status when lower device goes down

Today macvlan ignores the notification when a lower device goes
administratively down, preventing the lack of connectivity from
bubbling up.

Processing NETDEV_DOWN results in a macvlan state of LOWERLAYERDOWN
with NO-CARRIER which should be easy to interpret in userspace.

2: lower: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
3: macvlan@lower: <NO-CARRIER,BROADCAST,MULTICAST,UP,M-DOWN> mtu 1500 qdisc noqueue state LOWERLAYERDOWN mode DEFAULT group default qlen 1000

Signed-off-by: Suresh Krishnan <skrishnan@arista.com>
Signed-off-by: Travis Brown <travisb@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 0e97c4fb

drivers/net/macvlan.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1641,6 +1641,7 @@ static int macvlan_device_event(struct notifier_block *unused,

		switch (event) {
		case NETDEV_UP:
		case NETDEV_DOWN:
		case NETDEV_CHANGE:
		list_for_each_entry(vlan, &port->vlans, list)
		netif_stacked_transfer_operstate(vlan->lowerdev,

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