AR8216 and PSB6970 used "pvid", IP17xx used "tag" and RTL8306 called it "vid".
Change all to "vid" and annotate the description with the valid ID range.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23419 3c298f89-4303-0410-b956-a3cf2f4a3e73
- add some comments to a few data structures
- add a switch_dev_ops data structure for attributes and callback to replace the stupid template memcpy
- get rid of the switch_dev.priv pointer - using container_of() is better
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22476 3c298f89-4303-0410-b956-a3cf2f4a3e73
