From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pravin B Shelar Subject: [PATCH net-next 0/3] openvswitch: Add STT support. Date: Tue, 20 Jan 2015 12:25:36 -0800 Message-ID: <1421785536-19793-1-git-send-email-pshelar@nicira.com> Cc: netdev@vger.kernel.org, Pravin B Shelar To: davem@davemloft.net Return-path: Received: from na3sys009aog106.obsmtp.com ([74.125.149.77]:54727 "HELO na3sys009aog106.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1753394AbbATVIw (ORCPT ); Tue, 20 Jan 2015 16:08:52 -0500 Received: by mail-pd0-f182.google.com with SMTP id z10so5855562pdj.13 for ; Tue, 20 Jan 2015 13:08:51 -0800 (PST) Sender: netdev-owner@vger.kernel.org List-ID: Following patch series adds support for Stateless Transport Tunneling protocol. STT uses TCP segmentation offload available in most of NIC. On packet xmit STT driver appends STT header along with TCP header to the packet. For GSO packet GSO parameters are set according to tunnel configuration and packet is handed over to networking stack. This allows use of segmentation offload available in NICs Netperf unidirectional test gives ~9.4 Gbits/s performance on 10Gbit NIC with 1500 byte MTU with two TCP streams. The protocol is documented at http://www.ietf.org/archive/id/draft-davie-stt-06.txt I will send out OVS userspace patch on ovs-dev mailing list. Pravin B Shelar (3): skbuff: Add skb_list_linearize() net: Add STT tunneling protocol. openvswitch: Add support for STT tunneling. include/linux/skbuff.h | 2 + include/net/stt.h | 55 ++ include/uapi/linux/openvswitch.h | 1 + net/core/skbuff.c | 35 + net/ipv4/Kconfig | 11 + net/ipv4/Makefile | 1 + net/ipv4/stt.c | 1386 ++++++++++++++++++++++++++++++++++++++ net/openvswitch/Kconfig | 10 + net/openvswitch/Makefile | 1 + net/openvswitch/vport-stt.c | 214 ++++++ 10 files changed, 1716 insertions(+) create mode 100644 include/net/stt.h create mode 100644 net/ipv4/stt.c create mode 100644 net/openvswitch/vport-stt.c -- 1.9.1