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 E4223A04C7; Tue, 15 Sep 2020 14:53:52 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id E84371C0CF; Tue, 15 Sep 2020 14:53:35 +0200 (CEST) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 92D58DE0 for ; Tue, 15 Sep 2020 14:53:31 +0200 (CEST) Received: from Internal Mail-Server by MTLPINE1 (envelope-from ophirmu@nvidia.com) with SMTP; 15 Sep 2020 15:53:29 +0300 Received: from nvidia.com (pegasus05.mtr.labs.mlnx [10.210.16.100]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id 08FCrThv010786; Tue, 15 Sep 2020 15:53:29 +0300 From: Ophir Munk To: dev@dpdk.org, Wenzhuo Lu , Beilei Xing , Bernard Iremonger , Ferruh Yigit Cc: Ophir Munk , Ophir Munk Date: Tue, 15 Sep 2020 12:53:17 +0000 Message-Id: <20200915125319.16568-2-ophirmu@nvidia.com> X-Mailer: git-send-email 2.8.4 In-Reply-To: <20200915125319.16568-1-ophirmu@nvidia.com> References: <20200827070244.32392-2-ophirmu@nvidia.com> <20200915125319.16568-1-ophirmu@nvidia.com> Subject: [dpdk-dev] [PATCH v3 1/3] app/testpmd: add GENEVE parsing 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" From: Ophir Munk GENEVE is a widely used tunneling protocol in modern Virtualized Networks. testpmd already supports parsing of several tunneling protocols including VXLAN, VXLAN-GPE, GRE. This commit adds GENEVE parsing of inner protocols (IPv4-0x0800, IPv6-0x86dd, Ethernet-0x6558) based on IETF draft-ietf-nvo3-geneve-09. GENEVE is considered more flexible than the other protocols. In terms of protocol format GENEVE header has a variable length options as opposed to other tunneling protocols which have a fixed header size. Signed-off-by: Ophir Munk --- app/test-pmd/csumonly.c | 70 ++++++++++++++++++++++++++++++++++++++++++- app/test-pmd/testpmd.h | 1 + lib/librte_net/meson.build | 3 +- lib/librte_net/rte_geneve.h | 72 +++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 144 insertions(+), 2 deletions(-) create mode 100644 lib/librte_net/rte_geneve.h diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c index 7ece398..eb87b9b 100644 --- a/app/test-pmd/csumonly.c +++ b/app/test-pmd/csumonly.c @@ -43,6 +43,7 @@ #include #include #include +#include #include "testpmd.h" @@ -63,6 +64,7 @@ #endif uint16_t vxlan_gpe_udp_port = 4790; +uint16_t geneve_udp_port = RTE_GENEVE_DEFAULT_PORT; /* structure that caches offload info for the current packet */ struct testpmd_offload_info { @@ -333,6 +335,64 @@ parse_vxlan_gpe(struct rte_udp_hdr *udp_hdr, info->l2_len += RTE_ETHER_VXLAN_GPE_HLEN; } +/* Fill in outer layers length */ +static void +update_tunnel_outer(struct testpmd_offload_info *info) +{ + info->is_tunnel = 1; + info->outer_ethertype = info->ethertype; + info->outer_l2_len = info->l2_len; + info->outer_l3_len = info->l3_len; + info->outer_l4_proto = info->l4_proto; +} + +/* Parse a geneve header */ +static void +parse_geneve(struct rte_udp_hdr *udp_hdr, + struct testpmd_offload_info *info) +{ + struct rte_ether_hdr *eth_hdr; + struct rte_ipv4_hdr *ipv4_hdr; + struct rte_ipv6_hdr *ipv6_hdr; + struct rte_geneve_hdr *geneve_hdr; + uint16_t geneve_len; + + /* Check udp destination port. */ + if (udp_hdr->dst_port != _htons(geneve_udp_port)) + return; + + geneve_hdr = (struct rte_geneve_hdr *)((char *)udp_hdr + + sizeof(struct rte_udp_hdr)); + geneve_len = sizeof(struct rte_geneve_hdr) + geneve_hdr->opt_len * 4; + if (!geneve_hdr->proto || geneve_hdr->proto == + _htons(RTE_GENEVE_TYPE_IPV4)) { + update_tunnel_outer(info); + ipv4_hdr = (struct rte_ipv4_hdr *)((char *)geneve_hdr + + geneve_len); + parse_ipv4(ipv4_hdr, info); + info->ethertype = _htons(RTE_ETHER_TYPE_IPV4); + info->l2_len = 0; + } else if (geneve_hdr->proto == _htons(RTE_GENEVE_TYPE_IPV6)) { + update_tunnel_outer(info); + ipv6_hdr = (struct rte_ipv6_hdr *)((char *)geneve_hdr + + geneve_len); + info->ethertype = _htons(RTE_ETHER_TYPE_IPV6); + parse_ipv6(ipv6_hdr, info); + info->l2_len = 0; + + } else if (geneve_hdr->proto == _htons(RTE_GENEVE_TYPE_ETH)) { + update_tunnel_outer(info); + eth_hdr = (struct rte_ether_hdr *)((char *)geneve_hdr + + geneve_len); + parse_ethernet(eth_hdr, info); + } else + return; + + info->l2_len += + (sizeof(struct rte_udp_hdr) + sizeof(struct rte_geneve_hdr) + + ((struct rte_geneve_hdr *)geneve_hdr)->opt_len * 4); +} + /* Parse a gre header */ static void parse_gre(struct simple_gre_hdr *gre_hdr, struct testpmd_offload_info *info) @@ -865,9 +925,17 @@ pkt_burst_checksum_forward(struct fwd_stream *fs) } parse_vxlan(udp_hdr, &info, m->packet_type); - if (info.is_tunnel) + if (info.is_tunnel) { tx_ol_flags |= PKT_TX_TUNNEL_VXLAN; + goto tunnel_update; + } + parse_geneve(udp_hdr, &info); + if (info.is_tunnel) { + tx_ol_flags |= + PKT_TX_TUNNEL_GENEVE; + goto tunnel_update; + } } else if (info.l4_proto == IPPROTO_GRE) { struct simple_gre_hdr *gre_hdr; diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h index a8ae5cc..f405d4e 100644 --- a/app/test-pmd/testpmd.h +++ b/app/test-pmd/testpmd.h @@ -452,6 +452,7 @@ extern struct fwd_lcore **fwd_lcores; extern struct fwd_stream **fwd_streams; extern uint16_t vxlan_gpe_udp_port; /**< UDP port of tunnel VXLAN-GPE. */ +extern uint16_t geneve_udp_port; /**< UDP port of tunnel GENEVE. */ extern portid_t nb_peer_eth_addrs; /**< Number of peer ethernet addresses. */ extern struct rte_ether_addr peer_eth_addrs[RTE_MAX_ETHPORTS]; diff --git a/lib/librte_net/meson.build b/lib/librte_net/meson.build index 24ed825..52d3a97 100644 --- a/lib/librte_net/meson.build +++ b/lib/librte_net/meson.build @@ -16,7 +16,8 @@ headers = files('rte_ip.h', 'rte_net_crc.h', 'rte_mpls.h', 'rte_higig.h', - 'rte_ecpri.h') + 'rte_ecpri.h', + 'rte_geneve.h') sources = files('rte_arp.c', 'rte_ether.c', 'rte_net.c', 'rte_net_crc.c') deps += ['mbuf'] diff --git a/lib/librte_net/rte_geneve.h b/lib/librte_net/rte_geneve.h new file mode 100644 index 0000000..a7101c8 --- /dev/null +++ b/lib/librte_net/rte_geneve.h @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2020 Mellanox Technologies, Ltd + */ + +#ifndef _RTE_GENEVE_H_ +#define _RTE_GENEVE_H_ + +/** + * @file + * + * GENEVE-related definitions + */ + +#include + +#include + + +#ifdef __cplusplus +extern "C" { +#endif + +/** GENEVE default port. */ +#define RTE_GENEVE_DEFAULT_PORT 6081 + +/** + * GENEVE protocol header. (draft-ietf-nvo3-geneve-09) + * Contains: + * 2-bits version (must be 0). + * 6-bits option length in four byte multiples, not including the eight + * bytes of the fixed tunnel header. + * 1-bit control packet. + * 1-bit critical options in packet. + * 6-bits reserved + * 16-bits Protocol Type. The protol data unit after the Geneve header + * following the EtherType convention. Ethernet itself is represented by + * the value 0x6558. + * 24-bits Virtual Network Identifier (VNI). Virtual network unique identified. + * 8-bits reserved bits (must be 0 on transmission and ignored on reciept). + * More-bits (optinal) variable length options. + */ +__extension__ +struct rte_geneve_hdr { +#if RTE_BYTE_ORDER == RTE_BIG_ENDIAN + uint8_t ver:2; /**< Version (2). */ + uint8_t opt_len:6; /**< Options length (6). */ + uint8_t oam:1; /**< Control packet (1). */ + uint8_t critical:1; /**< Critical packet (1). */ + uint8_t rsvd1:6; /**< Reserved (6). */ +#else + uint8_t opt_len:6; /**< Options length (6). */ + uint8_t ver:2; /**< Version (2). */ + uint8_t rsvd1:6; /**< Reserved (6). */ + uint8_t critical:1; /**< Critical packet (1). */ + uint8_t oam:1; /**< Control packet (1). */ +#endif + rte_be16_t proto; /**< Protocol type (16). */ + uint8_t vni[3]; /**< Virtual network identifier (24). */ + uint8_t rsvd2; /**< Reserved (8). */ + uint8_t opts[]; /**