Le 06/09/2016 à 05:01, Jiri Pirko a écrit : > From: Jiri Pirko <j...@mellanox.com> > > This is RFC, unfinished. I came across some issues in the process so I would > like to share those and restart the fib offload discussion in order to make it > really usable. > > So the goal of this patchset is to allow driver to propagate all prefixes > configured in kernel down HW. This is necessary for routing to work > as expected. If we don't do that HW might forward prefixes known to kernel > incorrectly. Take an example when default route is set in switch HW and there > is an IP address set on a management (non-switch) port. > > Currently, only fibs related to the switch port netdev are offloaded using > switchdev ops. This model is not extendable so the first patch introduces > a replacement: notifier to propagate fib additions and removals to whoever > interested. The second patch makes mlxsw to adopt this new way, registering > one notifier block for each mlxsw (asic) instance.
Instead of introducing another specialization of a notifier_block implementation, could we somehow have a kernel-based netlink listener which receives the same kind of event information from rtmsg_fib()? The reason is that having such a facility would hook directly onto existing rtmsg_* calls that exist throughout the stack, and that seems to scale better. -- Florian
