Thanks for joining the call today! Please see my notes from the discussion included below.
=== Status ===
Sargun: seccomp-ebpf - verifier hurdles - wants synchronous filtering as minimum feature to allow the verifier risk - current rcu locking approach was nacked discussion about how bpf punts to userspace daemon - problems with passing metadata back and forth
Jesper: xdp redirect memory return api rfc - patches under review on ml - some questions about dma mapping in the api - how to unmap page when device has already gone down? - or when page pool is full?
Issue: enabling redirect to other device with no xdp rx program running currently results in silent failure. - Have an ethtool flag to enable tx devices -> reconfigure queues?
Brendan: bpftrace - higher level frontend to bcc/bpf - making good progress - 70% feature complete - symbol resolution missing - dereference of c structs - depends on ctf? - test suite exists - uses llvm-ir diff against previous builds to sanity check - packaging? - tbd
=== Attendees === Brenden Blanco Quentin Monnet Tom Alexander Duyck Jiong Wang Sandipan Sargun Dhillon Jakub Kicinski Saeed Daniel Borkmann Ferris Jesper Brouer Brendan Gregg
