routing policy based on u32 classifier

Hello everyone,

Kindly I would like to ask if there is a way to do routing
policy based on u32 classifier without fwmark/netfilter.
I have read doc/tc-filters and doc/actions/actions-general
from iproute2-4.9.0 package but I am not able to find any
actions doing this kind of job: the only way is to mark
packets with netfilter.

Any response are welcome

TIA

Marco