netdev - [RFC: add openvswitch actions using BPF 0/2]

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Message-Id: <1423090122-19807-1-git-send-email-azhou@nicira.com>
Date:	Wed,  4 Feb 2015 14:48:40 -0800
From:	Andy Zhou <azhou@...ira.com>
To:	dev@...nvswitch.com
Cc:	netdev@...r.kernel.org, Andy Zhou <azhou@...ira.com>
Subject: [RFC: add openvswitch actions using BPF 0/2]

Joe and I have been experimenting with BPF and its application for OVS.
This patch shows our attempt to implement ovs actions using eBPF.

The kernel changes are against the 'net-next'. The corresponding
user space changes will be post next.

This patch set implements an BPF action, that has the same interface
as current OVS output action. Instead of sending out a packet, it
only generates a kernel message.

This feature is neither complete nor useful as is.  We are mostly
interested in comments on: The infrastructure changes to support
and running BPF functions, and suggestions on extensions beyond
those patches.

Andy Zhou (2):
  BPF: add a new BPF program type BPF_PROG_TYPE_OPENVSWITCH
  openvswitch: implements the BPF_PROG action in datapath

 include/linux/bpf.h              |  2 +-
 include/uapi/linux/bpf.h         |  1 +
 include/uapi/linux/openvswitch.h | 29 ++++++++++++-
 net/Makefile                     |  4 +-
 net/openvswitch/Makefile         |  2 +
 net/openvswitch/actions.c        | 30 +++++++++++++
 net/openvswitch/bpf.c            | 87 +++++++++++++++++++++++++++++++++++++
 net/openvswitch/datapath.c       |  6 ++-
 net/openvswitch/flow_netlink.c   | 92 +++++++++++++++++++++++++++++++++++++++-
 net/openvswitch/flow_netlink.h   |  8 ++++
 10 files changed, 254 insertions(+), 7 deletions(-)
 create mode 100644 net/openvswitch/bpf.c

-- 
1.9.1

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