Hi All, Thanks for attending the call this week, as usual here are the notes of the discussions and updates.
=== Netdev === LWN summary article for Netconf+Netdev is available: https://lwn.net/Articles/738912/ Discussions: - XDP cpumaps - XDP offload - How to offload xdp metadata hints? - c-like language to describe hw - llvm -> set of instrinsics to program hardware - Sockmap - TCP hooks to modify tcp behavior? - mss window clamping - performance data - How to do page recycling across drivers? - some issues with ixgbe put_page approach - ndo op to unlink pages - New AF_PACKET version for fast userspace - to be renamed - possible XDP/other BPF hook to forward pages into userspace === Status === Yonghong - uprobe perf improvements - emulate push instruction - 50% improvement - verifier improvements - bpf_probe_read constant semantics - constant_or_zero - to look at test_brb test hangs JohnF - verifier loop support - on top of ast's call support tree - find basic blocks, build CFG - building dom tree - this should enable finding maximal bounds - goal to have something functional by end of the week Jesper - "XDP Infrastructure developments" at netconf http://vger.kernel.org/netconf2017part2.html http://people.netfilter.org/hawk/presentations/NetConf2017_Seoul/XDP_devel_update_NetConf2017_Seoul.pdf Daniel - Alexei+Daniel to manage new bpf tree - delegated from netdev - pull request ~1 per week - where do driver patches go? - to be discussed - bpf qdisc - replacement for clsact+bpf - compatible with clsbpf programs - removes a couple layers that aren't usually used - future: multiprogram support === Attendees === Brenden Blanco Alexander Duyck Daniel Borkmann Edwin Peer Jakub Kicinski Jesper Brouer Jiong Wang John Fastabend Kenny Paul Matteo Bertrone Mauricio Vasquez Quentin Monnet Yonghong Song Brendan Gregg BobB _______________________________________________ iovisor-dev mailing list iovisor-dev@lists.iovisor.org https://lists.iovisor.org/mailman/listinfo/iovisor-dev
