From: Jakub Kicinski
Date: Thu, 9 Jul 2020 17:42:43 -0700
...
> This work tries to improve the situation by pulling the UDP tunnel
> port table maintenance out of the drivers. It turns out that almost
> all drivers maintain a fixed size table of ports (in most cases one
> per tunnel type), so w
Kernel has a facility to notify drivers about the UDP tunnel ports
so that devices can recognize tunneled packets. This is important
mostly for RX - devices which don't support CHECKSUM_COMPLETE can
report checksums of inner packets, and compute RSS over inner headers.
Some drivers also match the U
