- Import infrastructure for caching flows as a means of accelerating L3 and L2 lookups as well as providing stateful load balancing when used with RADIX_MPATH. - Currently compiled in to i386 and amd64 but disabled by default, it can be enabled at runtime with 'sysctl net.inet.flowtable.enable=1'.
- Embedded users can remove it entirely from the kernel by adding 'nooption FLOWTABLE' to their kernel config files.
- A minimal hookup will be added to ip_output in a subsequent commit. I would like to see more review before bringing in changes that require more churn.
Add L2 L3 Cache lookup by default.