distributed switch architecture

Starting with OpenWrt 21, a specific list of chipsets starting using DSA (Distributed Switch Architecture) from the Linux kernel instead of swconfig.  This significantly changes the way switches and vlan are handled in OpenWrt, and therefore system configurations cannot always be migrated. Trying to run sysupgrade on a chipset that is changing from swconfig to … OpenWrt: upgrading to latest version when chipset migrated to DSA support