From: Mike Manning <mmann...@vyatta.att-mail.com> Date: Thu, 18 Apr 2019 18:35:30 +0100
> For vlan filtering on bridges, the bridge may also have vlan devices > as upper devices. For switches, these are used to provide L3 packet > processing for ports that are members of a given vlan. > > While it is correct that the admin state for these vlan devices is > either set directly for the device or inherited from the lower device, > the link state is also transferred from the lower device. So this is > always up if the bridge is in admin up state and there is at least one > bridge port that is up, regardless of the vlan that the port is in. > > The link state of the vlan device may need to track only the state of > the subset of ports that are also members of the corresponding vlan, > rather than that of all ports. > > This series provides an optional vlan flag so that the link state of > the vlan device is only up if there is at least one bridge port that is > up AND is a member of the corresponding vlan. > > v2: > - Address review comments from Nikolay Aleksandrov > in patches 3 & 4 and add patch 5 to address bridge link down due to STP > v3: > - Address review comment from Nikolay Aleksandrov > in patch 4 so as to remove unnecessary inline #ifdef Series applied, thanks Mike.
