From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id CDF14A31F3 for ; Fri, 18 Oct 2019 20:49:58 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 839CF1C033; Fri, 18 Oct 2019 20:49:57 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id C88411C02D for ; Fri, 18 Oct 2019 20:49:55 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Oct 2019 11:49:54 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,312,1566889200"; d="scan'208";a="348170038" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.10]) ([10.237.221.10]) by orsmga004.jf.intel.com with ESMTP; 18 Oct 2019 11:49:52 -0700 To: Ting Xu , dev@dpdk.org Cc: wenzhuo.lu@intel.com, jingjing.wu@intel.com, bernard.iremonger@intel.com, qi.z.zhang@intel.com References: <20191017161558.59405-1-ting.xu@intel.com> <20191018160819.24678-1-ting.xu@intel.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH v3] app/testpmd: enable GTP header parse and Tx checksum offload 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 10/18/2019 5:08 PM, Ting Xu wrote: > This patch enables testpmd to forward GTP packet in csum fwd mode. > GTP header structure (without optional fields and extension header) > and parser function are added. GTPU and GTPC packets are both > supported, with respective UDP destination port and GTP message > type. > > Signed-off-by: Ting Xu > <...> > +/* > + * Parse a GTP protocol header. > + * No optional fields and next extension header type. > + */ > +struct rte_gtp_hdr { > + uint8_t gtp_hdr_info; > + uint8_t msg_type; > + uint16_t msg_len; > + uint32_t teid; > +} __attribute__((__packed__)); > + > +/* GTP header length */ > +#define RTE_ETHER_GTP_HLEN \ > + (sizeof(struct rte_udp_hdr) + sizeof(struct rte_gtp_hdr)) > +/* GTP next protocal type */ > +#define RTE_GTP_TYPE_IPV4 0x40 > +#define RTE_GTP_TYPE_IPV6 0x60 > + > +static void > +parse_gtp(struct rte_udp_hdr *udp_hdr, > + struct testpmd_offload_info *info) > +{ > + struct rte_ipv4_hdr *ipv4_hdr; > + struct rte_ipv6_hdr *ipv6_hdr; > + struct rte_gtp_hdr *gtp_hdr; > + uint8_t gtp_len = sizeof(*gtp_hdr); > + uint8_t ip_ver; > + /* GTP destination port number */ > + uint16_t gtpc_udp_port = 2123; > + uint16_t gtpu_udp_port = 2152; What do you think about moving GTP related information into a gtp header file in net library?