On Thu, Apr 15, 2021 at 11:26:06AM +0200, Tobias Waldekranz wrote: > All devices are capable of using regular DSA tags. Support for > Ethertyped DSA tags sort into three categories: > > 1. No support. Older chips fall into this category. > > 2. Full support. Datasheet explicitly supports configuring the CPU > port to receive FORWARDs with a DSA tag. > > 3. Undocumented support. Datasheet lists the configuration from > category 2 as "reserved for future use", but does empirically > behave like a category 2 device. > > So, instead of listing the one true protocol that should be used by a > particular chip, specify the level of support for EDSA (support for > regular DSA is implicit on all chips). As before, we use EDSA for all > chips that fully supports it. > > In upcoming changes, we will use this information to support > dynamically changing the tag protocol. > > Signed-off-by: Tobias Waldekranz <tobias@xxxxxxxxxxxxxx> > --- Reviewed-by: Vladimir Oltean <olteanv@xxxxxxxxx>
