From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from stargate.chelsio.com (stargate.chelsio.com [12.32.117.8]) by dpdk.org (Postfix) with ESMTP id 317A81B4F7 for ; Mon, 2 Jul 2018 14:05:29 +0200 (CEST) Received: from localhost (scalar.blr.asicdesigners.com [10.193.185.94]) by stargate.chelsio.com (8.13.8/8.13.8) with ESMTP id w62C5Ojx020285; Mon, 2 Jul 2018 05:05:25 -0700 Date: Mon, 2 Jul 2018 17:34:22 +0530 From: Rahul Lakkireddy To: Jack Min Cc: "dev@dpdk.org" , Shagun Agarwal , Indranil Choudhury , Nirranjan Kirubaharan , Shahaf Shuler , "Xueming(Steven) Li" Message-ID: <20180702120421.GA28446@chelsio.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Subject: Re: [dpdk-dev] [RFC 0/3] ethdev: add IP address and TCP/UDP port rewrite actions to flow API X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Jul 2018 12:05:30 -0000 Hi Jack, On Monday, July 07/02/18, 2018 at 14:39:06 +0530, Jack Min wrote: > Hey, > > I've one question: > > Do those APIs support modify inner IP headers? > I'm afraid not. These API only modify outer IP addresses. I can think of two ways to achieve this: 1. Enhance these API to accept an additional flag to indicate inner or outer. For example, to set inner IPv4 address, we can set inner to 1 in following structure. struct rte_flow_action_of_set_nw_ipv4 { uint32_t inner:1; /* 1 - Inner, 0 - Outer */ uint32_t reserved:31; uint32_t ipv4_addr; }; 2. Add new actions to indicate inner IP addresses; i.e. RTE_FLOW_ACTION_TYPE_OF_SET_INNER_NW_IPV4_SRC RTE_FLOW_ACTION_TYPE_OF_SET_INNER_NW_IPV4_DST RTE_FLOW_ACTION_TYPE_OF_SET_INNER_NW_IPV6_SRC RTE_FLOW_ACTION_TYPE_OF_SET_INNER_NW_IPV6_DST Thanks, Rahul > In our scenarios, we need to specific that NAT action is on inner or outer IP header. > > Thanks, > -Jack > > > -----Original Message----- > > From: dev On Behalf Of Rahul Lakkireddy > > Sent: June 22, 2018 17:56 > > To: dev@dpdk.org > > Cc: shaguna@chelsio.com; indranil@chelsio.com; nirranjan@chelsio.com > > Subject: [dpdk-dev] [RFC 0/3] ethdev: add IP address and TCP/UDP port rewrite > > actions to flow API > > > > This series of patches add support for actions: > > - OF_SET_NW_IPV4_SRC - set a new IPv4 source address. > > - OF_SET_NW_IPV4_DST - set a new IPv4 destination address. > > - OF_SET_NW_IPV6_SRC - set a new IPv6 source address. > > - OF_SET_NW_IPV6_DST - set a new IPv6 destination address. > > - OF_SET_TP_SRC - set a new TCP/UDP source port number. > > - OF_SET_TP_DST - set a new TCP/UDP destination port number. > > > > These actions are useful in Network Address Translation use case to edit IP > > address and TCP/UDP port numbers before switching the packets out to the > > destination device port. > > > > The IP address and TCP/UDP port rewrite actions are based on > > OFPAT_SET_NW_SRC, OFPAT_SET_NW_DST, OFPAT_SET_TP_SRC, and > > OFPAT_SET_TP_DST actions from OpenFlow Specification [1]. > > > > Patch 1 adds support for IP address rewrite to rte_flow and testpmd. > > > > Patch 2 adds support for TCP/UDP port rewrite to rte_flow and testpmd. > > > > Patch 3 shows CXGBE PMD example to offload these actions to hardware. > > > > Feedback and suggestions will be much appreciated. > > > > Thanks, > > Rahul > > > > [1] > > https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.open > > networking.org%2Fimages%2Fopenflow-switch- > > v1.5.1.pdf&data=02%7C01%7Cxuemingl%40mellanox.com%7C74c8ce3b79954b2f > > 123208d5d8268617%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C1%7C636 > > 652582334142929&sdata=uoFc1KjVTkGI9fdaPNXvXYRmh%2F6HLMKT79IwgvDSH > > 0k%3D&reserved=0 > > > > Shagun Agrawal (3): > > ethdev: add flow api actions to modify IP addresses > > ethdev: add flow api actions to modify TCP/UDP port numbers > > net/cxgbe: add flow actions to modify IP and TCP/UDP port address > > > > app/test-pmd/cmdline_flow.c | 150 > > ++++++++++++++++++++++++++++ > > app/test-pmd/config.c | 12 +++ > > doc/guides/prog_guide/rte_flow.rst | 102 +++++++++++++++++++ > > doc/guides/testpmd_app_ug/testpmd_funcs.rst | 24 +++++ > > drivers/net/cxgbe/base/common.h | 1 + > > drivers/net/cxgbe/base/t4fw_interface.h | 50 ++++++++++ > > drivers/net/cxgbe/cxgbe_filter.c | 23 ++++- > > drivers/net/cxgbe/cxgbe_filter.h | 26 ++++- > > drivers/net/cxgbe/cxgbe_flow.c | 127 +++++++++++++++++++++++ > > drivers/net/cxgbe/cxgbe_main.c | 10 ++ > > lib/librte_ethdev/rte_flow.c | 12 +++ > > lib/librte_ethdev/rte_flow.h | 92 +++++++++++++++++ > > 12 files changed, 625 insertions(+), 4 deletions(-) > > > > -- > > 2.14.1 >