Hi Luca, nice work! See my small comment below/ I ran some local tests and everything seems to be working fine, so other than that minor fix I pointed out, the rest should be all set!
<snip> > +"""The DPDK device blocklisting test suite. > + > +This testing suite ensures tests the port blocklisting functionality of > testpmd. I would remove the 'tests' and just write 'testing suite ensures the port...' > +""" > + <snip>