From patchwork Mon Mar 5 14:51:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xueming Li X-Patchwork-Id: 35655 X-Patchwork-Delegate: shahafs@mellanox.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 37D0EA499; Mon, 5 Mar 2018 15:52:18 +0100 (CET) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 132CAA499 for ; Mon, 5 Mar 2018 15:52:17 +0100 (CET) Received: from Internal Mail-Server by MTLPINE1 (envelope-from xuemingl@mellanox.com) with ESMTPS (AES256-SHA encrypted); 5 Mar 2018 16:52:41 +0200 Received: from dev-r630-06.mtbc.labs.mlnx (dev-r630-06.mtbc.labs.mlnx [10.12.205.180]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id w25EqDOL023274; Mon, 5 Mar 2018 16:52:14 +0200 Received: from dev-r630-06.mtbc.labs.mlnx (localhost [127.0.0.1]) by dev-r630-06.mtbc.labs.mlnx (8.14.7/8.14.7) with ESMTP id w25EqDL1071938; Mon, 5 Mar 2018 22:52:13 +0800 Received: (from xuemingl@localhost) by dev-r630-06.mtbc.labs.mlnx (8.14.7/8.14.7/Submit) id w25EqDrE071937; Mon, 5 Mar 2018 22:52:13 +0800 From: Xueming Li To: Wenzhuo Lu , Jingjing Wu , Thomas Monjalon , Yongseok Koh , Olivier MATZ , Shahaf Shuler Cc: Xueming Li , Ferruh Yigit , dev@dpdk.org Date: Mon, 5 Mar 2018 22:51:18 +0800 Message-Id: <20180305145121.71866-5-xuemingl@mellanox.com> X-Mailer: git-send-email 2.13.3 In-Reply-To: <20180305145121.71866-1-xuemingl@mellanox.com> References: <20180305145121.71866-1-xuemingl@mellanox.com> In-Reply-To: <20180109141110.146250-2-xuemingl@mellanox.com> References: <20180109141110.146250-2-xuemingl@mellanox.com> Subject: [dpdk-dev] [PATCH v3 4/7] app/testpmd: introduce VXLAN GPE to csum forwarding engine 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" This patch introduced VXLAN-GPE support to csum forwarding engine by recognizing VXLAN-GPE UDP port and parsing tunnel payload according to next-protocol type. Signed-off-by: Xueming Li --- app/test-pmd/csumonly.c | 96 +++++++++++++++++++++++++++++++++-- app/test-pmd/parameters.c | 12 ++++- app/test-pmd/testpmd.h | 2 + doc/guides/testpmd_app_ug/run_app.rst | 5 ++ 4 files changed, 111 insertions(+), 4 deletions(-) diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c index 00ec40d58..526d28e74 100644 --- a/app/test-pmd/csumonly.c +++ b/app/test-pmd/csumonly.c @@ -56,6 +56,10 @@ #define GRE_SUPPORTED_FIELDS (GRE_CHECKSUM_PRESENT | GRE_KEY_PRESENT |\ GRE_SEQUENCE_PRESENT) +#define VXLAN_GPE_TYPE_IPv4 1 +#define VXLAN_GPE_TYPE_IPv6 2 +#define VXLAN_GPE_TYPE_ETH 3 + /* We cannot use rte_cpu_to_be_16() on a constant in a switch/case */ #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN #define _htons(x) ((uint16_t)((((x) & 0x00ffU) << 8) | (((x) & 0xff00U) >> 8))) @@ -63,6 +67,8 @@ #define _htons(x) (x) #endif +uint16_t vxlan_gpe_udp_port = 4790; + /* structure that caches offload info for the current packet */ struct testpmd_offload_info { uint16_t ethertype; @@ -87,6 +93,14 @@ struct simple_gre_hdr { uint16_t proto; } __attribute__((__packed__)); +/* simplified VXLAN-GPE header */ +struct vxlan_gpe_hdr { + uint8_t vx_flags; /**< flag (8). */ + uint8_t reserved[2]; /**< Reserved (16). */ + uint8_t proto; /**< next-protocol (8). */ + uint32_t vx_vni; /**< VNI (24) + Reserved (8). */ +} __attribute__((__packed__)); + static uint16_t get_udptcp_checksum(void *l3_hdr, void *l4_hdr, uint16_t ethertype) { @@ -197,6 +211,70 @@ parse_vxlan(struct udp_hdr *udp_hdr, info->l2_len += ETHER_VXLAN_HLEN; /* add udp + vxlan */ } +/* Parse a vxlan-gpe header */ +static void +parse_vxlan_gpe(struct udp_hdr *udp_hdr, + struct testpmd_offload_info *info) +{ + struct ether_hdr *eth_hdr; + struct ipv4_hdr *ipv4_hdr; + struct ipv6_hdr *ipv6_hdr; + struct vxlan_gpe_hdr *vxlan_gpe_hdr; + uint8_t vxlan_gpe_len = sizeof(*vxlan_gpe_hdr); + + /* check udp destination port, 4790 is the default vxlan-gpe port */ + if (udp_hdr->dst_port != _htons(vxlan_gpe_udp_port)) + return; + + vxlan_gpe_hdr = (struct vxlan_gpe_hdr *)((char *)udp_hdr + + sizeof(struct udp_hdr)); + + if (!vxlan_gpe_hdr->proto || vxlan_gpe_hdr->proto == + VXLAN_GPE_TYPE_IPv4) { + 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; + + ipv4_hdr = (struct ipv4_hdr *)((char *)vxlan_gpe_hdr + + vxlan_gpe_len); + + parse_ipv4(ipv4_hdr, info); + info->ethertype = _htons(ETHER_TYPE_IPv4); + info->l2_len = 0; + + } else if (vxlan_gpe_hdr->proto == VXLAN_GPE_TYPE_IPv6) { + 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; + + ipv6_hdr = (struct ipv6_hdr *)((char *)vxlan_gpe_hdr + + vxlan_gpe_len); + + info->ethertype = _htons(ETHER_TYPE_IPv6); + parse_ipv6(ipv6_hdr, info); + info->l2_len = 0; + + } else if (vxlan_gpe_hdr->proto == VXLAN_GPE_TYPE_ETH) { + 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; + + eth_hdr = (struct ether_hdr *)((char *)vxlan_gpe_hdr + + vxlan_gpe_len); + + parse_ethernet(eth_hdr, info); + } else + return; + + info->l2_len += ETHER_VXLAN_HLEN; +} + /* Parse a gre header */ static void parse_gre(struct simple_gre_hdr *gre_hdr, struct testpmd_offload_info *info) @@ -591,6 +669,10 @@ pkt_copy_split(const struct rte_mbuf *pkt) * Ether / (vlan) / IP|IP6 / UDP|TCP|SCTP . * Ether / (vlan) / outer IP|IP6 / outer UDP / VxLAN / Ether / IP|IP6 / * UDP|TCP|SCTP + * Ether / (vlan) / outer IP|IP6 / outer UDP / VXLAN-GPE / Ether / IP|IP6 / + * UDP|TCP|SCTP + * Ether / (vlan) / outer IP|IP6 / outer UDP / VXLAN-GPE / IP|IP6 / + * UDP|TCP|SCTP * Ether / (vlan) / outer IP|IP6 / GRE / Ether / IP|IP6 / UDP|TCP|SCTP * Ether / (vlan) / outer IP|IP6 / GRE / IP|IP6 / UDP|TCP|SCTP * Ether / (vlan) / outer IP|IP6 / IP|IP6 / UDP|TCP|SCTP @@ -694,10 +776,18 @@ pkt_burst_checksum_forward(struct fwd_stream *fs) udp_hdr = (struct udp_hdr *)((char *)l3_hdr + info.l3_len); - parse_vxlan(udp_hdr, &info, m->packet_type); - if (info.is_tunnel) - tx_ol_flags |= (PKT_TX_TUNNEL_VXLAN | + parse_vxlan_gpe(udp_hdr, &info); + if (info.is_tunnel) { + tx_ol_flags |= (PKT_TX_TUNNEL_UNKNOWN | PKT_TX_OUTER_UDP); + } else { + parse_vxlan(udp_hdr, &info, + m->packet_type); + if (info.is_tunnel) + tx_ol_flags |= + (PKT_TX_TUNNEL_VXLAN | + PKT_TX_OUTER_UDP); + } } else if (info.l4_proto == IPPROTO_GRE) { struct simple_gre_hdr *gre_hdr; diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c index 97d22b860..d7489bcec 100644 --- a/app/test-pmd/parameters.c +++ b/app/test-pmd/parameters.c @@ -70,7 +70,7 @@ usage(char* progname) "--rss-ip | --rss-udp | " "--rxpt= | --rxht= | --rxwt= | --rxfreet= | " "--txpt= | --txht= | --txwt= | --txfreet= | " - "--txrst= | --tx-offloads ]\n", + "--txrst= | --tx-offloads= | --vxlan-gpe-port= ]\n", progname); #ifdef RTE_LIBRTE_CMDLINE printf(" --interactive: run in interactive mode.\n"); @@ -186,6 +186,7 @@ usage(char* progname) printf(" --flow-isolate-all: " "requests flow API isolated mode on all ports at initialization time.\n"); printf(" --tx-offloads=0xXXXXXXXX: hexadecimal bitmask of TX queue offloads\n"); + printf(" --vxlan-gpe-port=N: UPD port of tunnel VXLAN-GPE\n"); } #ifdef RTE_LIBRTE_CMDLINE @@ -621,6 +622,7 @@ launch_args_parse(int argc, char** argv) { "print-event", 1, 0, 0 }, { "mask-event", 1, 0, 0 }, { "tx-offloads", 1, 0, 0 }, + { "vxlan-gpe-port", 1, 0, 0 }, { 0, 0, 0, 0 }, }; @@ -1092,6 +1094,14 @@ launch_args_parse(int argc, char** argv) rte_exit(EXIT_FAILURE, "tx-offloads must be >= 0\n"); } + if (!strcmp(lgopts[opt_idx].name, "vxlan-gpe-port")) { + n = atoi(optarg); + if (n >= 0) + vxlan_gpe_udp_port = (uint16_t)n; + else + rte_exit(EXIT_FAILURE, + "vxlan-gpe-port must be >= 0\n"); + } if (!strcmp(lgopts[opt_idx].name, "print-event")) if (parse_event_printing_config(optarg, 1)) { rte_exit(EXIT_FAILURE, diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h index 153abea05..4cec239fe 100644 --- a/app/test-pmd/testpmd.h +++ b/app/test-pmd/testpmd.h @@ -433,6 +433,8 @@ extern uint32_t retry_enabled; 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 portid_t nb_peer_eth_addrs; /**< Number of peer ethernet addresses. */ extern struct ether_addr peer_eth_addrs[RTE_MAX_ETHPORTS]; diff --git a/doc/guides/testpmd_app_ug/run_app.rst b/doc/guides/testpmd_app_ug/run_app.rst index 1fd53958a..2e8690f41 100644 --- a/doc/guides/testpmd_app_ug/run_app.rst +++ b/doc/guides/testpmd_app_ug/run_app.rst @@ -479,3 +479,8 @@ The commandline options are: Set the hexadecimal bitmask of TX queue offloads. The default value is 0. + +* ``--vxlan-gpe-port=N`` + + Set the UDP port number of tunnel VXLAN-GPE to N. + The default value is 4790.