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GET /api/patches/101236/?format=api
{ "id": 101236, "url": "https://patches.dpdk.org/api/patches/101236/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20211012143942.1133718-6-xuemingl@nvidia.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20211012143942.1133718-6-xuemingl@nvidia.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20211012143942.1133718-6-xuemingl@nvidia.com", "date": "2021-10-12T14:39:42", "name": "[v6,5/5] app/testpmd: add forwarding engine for shared Rx queue", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "8a22fa78890c303fa01cc7aa427cdf8f8dd66f88", "submitter": { "id": 1904, "url": "https://patches.dpdk.org/api/people/1904/?format=api", "name": "Xueming Li", "email": "xuemingl@nvidia.com" }, "delegate": { "id": 319, "url": "https://patches.dpdk.org/api/users/319/?format=api", "username": "fyigit", "first_name": "Ferruh", "last_name": "Yigit", "email": "ferruh.yigit@amd.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20211012143942.1133718-6-xuemingl@nvidia.com/mbox/", "series": [ { "id": 19562, "url": "https://patches.dpdk.org/api/series/19562/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=19562", "date": "2021-10-12T14:39:37", "name": "ethdev: introduce shared Rx queue", "version": 6, "mbox": "https://patches.dpdk.org/series/19562/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/101236/comments/", "check": "warning", "checks": "https://patches.dpdk.org/api/patches/101236/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 4212CA0C47;\n\tTue, 12 Oct 2021 16:40:49 +0200 (CEST)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 29AA04118A;\n\tTue, 12 Oct 2021 16:40:49 +0200 (CEST)", "from NAM04-DM6-obe.outbound.protection.outlook.com\n (mail-dm6nam08on2041.outbound.protection.outlook.com [40.107.102.41])\n by mails.dpdk.org (Postfix) with ESMTP id 4426B40151\n for <dev@dpdk.org>; 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dmarc=pass action=none header.from=nvidia.com;", "Received-SPF": "Pass (protection.outlook.com: domain of nvidia.com designates\n 216.228.112.34 as permitted sender) receiver=protection.outlook.com;\n client-ip=216.228.112.34; helo=mail.nvidia.com;", "From": "Xueming Li <xuemingl@nvidia.com>", "To": "<dev@dpdk.org>", "CC": "<xuemingl@nvidia.com>, Jerin Jacob <jerinjacobk@gmail.com>, Ferruh Yigit\n <ferruh.yigit@intel.com>, Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>,\n Viacheslav Ovsiienko <viacheslavo@nvidia.com>, Thomas Monjalon\n <thomas@monjalon.net>, Lior Margalit <lmargalit@nvidia.com>, \"Ananyev\n Konstantin\" <konstantin.ananyev@intel.com>, Xiaoyun Li <xiaoyun.li@intel.com>", "Date": "Tue, 12 Oct 2021 22:39:42 +0800", "Message-ID": "<20211012143942.1133718-6-xuemingl@nvidia.com>", "X-Mailer": "git-send-email 2.33.0", "In-Reply-To": "<20211012143942.1133718-1-xuemingl@nvidia.com>", "References": "<20210727034204.20649-1-xuemingl@nvidia.com>\n <20211012143942.1133718-1-xuemingl@nvidia.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-Originating-IP": "[172.20.187.6]", "X-ClientProxiedBy": "HQMAIL105.nvidia.com (172.20.187.12) To\n HQMAIL107.nvidia.com (172.20.187.13)", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-Office365-Filtering-Correlation-Id": "2559440e-8274-4ef7-5863-08d98d8e45ad", "X-MS-TrafficTypeDiagnostic": "BN8PR12MB4769:", "X-LD-Processed": "43083d15-7273-40c1-b7db-39efd9ccc17a,ExtAddr", "X-Microsoft-Antispam-PRVS": "\n <BN8PR12MB47693B29E17A81AC8A99E974A1B69@BN8PR12MB4769.namprd12.prod.outlook.com>", "X-MS-Oob-TLC-OOBClassifiers": "OLM:2803;", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n ZZx7dcfjct6zRGX5C0uLFhpO6PbWlVJMCzafybK8f5HlivbHWyy/ZfuUyxDzeN/eZH2MJoSV4xV5jVDbAWHniK4EZvl3pPqjo/DbcA4XumaIy2HhmL5gLETMWsYxdfYpIlyWmLdREJKl+khrV24UeOPQEx5i+ye2tLFmDrwO4Aqa4pARweeiuHSqtooBQKFd4SV9x/AqakMVFbqy4cYMh4wnczxEBp1TLDHfHwwx9HEZlGpYfp4+nIYDi5mC6IB8IL23ouQDXV3zTXBDZ1OxtNCWhAFjr+/5dSnRgbTfU7jOnfWmqtkOVYwEGcUh1PAbtOlWGqfAnsjajb4hcr0ir55IXIesBGq4R94awHXldpM842UBVhl6YrcCVzFLBonXURp942dkwC7uxJamgVnuFdEdo7yz5AyEAekk5rbmNypdf5/IXQmP6WSdD0MXp2IkHKkRbgORwyXIXPNo9O4LElJdwvPgv5U/HJ7l4gBvOV8mcMoaOzQxpCS0kabWCd8AeixQW9jtxzd/XYaMwbja5NRPZyeX7A4mXZZxcoYAjHis3NV7OZp3I38thhyDVesnTxtsqudMprDCXb34GTL4U16eLrY4eZvSU2SJ5/nsciM16965adhhgvjw+FZMzZRxIb4ixb9B83dIZLz3pa7xZfjPnKV1g/EN4WmAsaII7wuSdAIGRinnGu+0OU7EAVqHdnny+ERT3ehMB3zC6925Vg==", "X-Forefront-Antispam-Report": "CIP:216.228.112.34; CTRY:US; LANG:en; SCL:1;\n SRV:;\n IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:schybrid03.nvidia.com; CAT:NONE;\n SFS:(4636009)(46966006)(36840700001)(82310400003)(47076005)(83380400001)(6916009)(36860700001)(7636003)(2906002)(336012)(7696005)(4326008)(508600001)(36756003)(86362001)(54906003)(356005)(426003)(8676002)(2616005)(55016002)(16526019)(26005)(316002)(5660300002)(8936002)(6286002)(70206006)(70586007)(186003)(1076003);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "Nvidia.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "12 Oct 2021 14:40:44.2403 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 2559440e-8274-4ef7-5863-08d98d8e45ad", "X-MS-Exchange-CrossTenant-Id": "43083d15-7273-40c1-b7db-39efd9ccc17a", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.34];\n Helo=[mail.nvidia.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n CO1NAM11FT010.eop-nam11.prod.protection.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "BN8PR12MB4769", "Subject": "[dpdk-dev] [PATCH v6 5/5] app/testpmd: add forwarding engine for\n shared Rx queue", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "To support shared Rx queue, this patch introduces dedicate forwarding\nengine. The engine groups received packets by mbuf->port into sub-group,\nupdates stream statistics and simply frees packets.\n\nSigned-off-by: Xueming Li <xuemingl@nvidia.com>\n---\n app/test-pmd/meson.build | 1 +\n app/test-pmd/shared_rxq_fwd.c | 148 ++++++++++++++++++++\n app/test-pmd/testpmd.c | 1 +\n app/test-pmd/testpmd.h | 1 +\n doc/guides/testpmd_app_ug/run_app.rst | 1 +\n doc/guides/testpmd_app_ug/testpmd_funcs.rst | 5 +-\n 6 files changed, 156 insertions(+), 1 deletion(-)\n create mode 100644 app/test-pmd/shared_rxq_fwd.c", "diff": "diff --git a/app/test-pmd/meson.build b/app/test-pmd/meson.build\nindex 98f3289bdfa..07042e45b12 100644\n--- a/app/test-pmd/meson.build\n+++ b/app/test-pmd/meson.build\n@@ -21,6 +21,7 @@ sources = files(\n 'noisy_vnf.c',\n 'parameters.c',\n 'rxonly.c',\n+ 'shared_rxq_fwd.c',\n 'testpmd.c',\n 'txonly.c',\n 'util.c',\ndiff --git a/app/test-pmd/shared_rxq_fwd.c b/app/test-pmd/shared_rxq_fwd.c\nnew file mode 100644\nindex 00000000000..4e262b99bc7\n--- /dev/null\n+++ b/app/test-pmd/shared_rxq_fwd.c\n@@ -0,0 +1,148 @@\n+/* SPDX-License-Identifier: BSD-3-Clause\n+ * Copyright (c) 2021 NVIDIA Corporation & Affiliates\n+ */\n+\n+#include <stdarg.h>\n+#include <string.h>\n+#include <stdio.h>\n+#include <errno.h>\n+#include <stdint.h>\n+#include <unistd.h>\n+#include <inttypes.h>\n+\n+#include <sys/queue.h>\n+#include <sys/stat.h>\n+\n+#include <rte_common.h>\n+#include <rte_byteorder.h>\n+#include <rte_log.h>\n+#include <rte_debug.h>\n+#include <rte_cycles.h>\n+#include <rte_memory.h>\n+#include <rte_memcpy.h>\n+#include <rte_launch.h>\n+#include <rte_eal.h>\n+#include <rte_per_lcore.h>\n+#include <rte_lcore.h>\n+#include <rte_atomic.h>\n+#include <rte_branch_prediction.h>\n+#include <rte_mempool.h>\n+#include <rte_mbuf.h>\n+#include <rte_pci.h>\n+#include <rte_ether.h>\n+#include <rte_ethdev.h>\n+#include <rte_string_fns.h>\n+#include <rte_ip.h>\n+#include <rte_udp.h>\n+#include <rte_net.h>\n+#include <rte_flow.h>\n+\n+#include \"testpmd.h\"\n+\n+/*\n+ * Rx only sub-burst forwarding.\n+ */\n+static void\n+forward_rx_only(uint16_t nb_rx, struct rte_mbuf **pkts_burst)\n+{\n+\trte_pktmbuf_free_bulk(pkts_burst, nb_rx);\n+}\n+\n+/**\n+ * Get packet source stream by source port and queue.\n+ * All streams of same shared Rx queue locates on same core.\n+ */\n+static struct fwd_stream *\n+forward_stream_get(struct fwd_stream *fs, uint16_t port)\n+{\n+\tstreamid_t sm_id;\n+\tstruct fwd_lcore *fc;\n+\tstruct fwd_stream **fsm;\n+\tstreamid_t nb_fs;\n+\n+\tfc = fs->lcore;\n+\tfsm = &fwd_streams[fc->stream_idx];\n+\tnb_fs = fc->stream_nb;\n+\tfor (sm_id = 0; sm_id < nb_fs; sm_id++) {\n+\t\tif (fsm[sm_id]->rx_port == port &&\n+\t\t fsm[sm_id]->rx_queue == fs->rx_queue)\n+\t\t\treturn fsm[sm_id];\n+\t}\n+\treturn NULL;\n+}\n+\n+/**\n+ * Forward packet by source port and queue.\n+ */\n+static void\n+forward_sub_burst(struct fwd_stream *src_fs, uint16_t port, uint16_t nb_rx,\n+\t\t struct rte_mbuf **pkts)\n+{\n+\tstruct fwd_stream *fs = forward_stream_get(src_fs, port);\n+\n+\tif (fs != NULL) {\n+\t\tfs->rx_packets += nb_rx;\n+\t\tforward_rx_only(nb_rx, pkts);\n+\t} else {\n+\t\t/* Source stream not found, drop all packets. */\n+\t\tsrc_fs->fwd_dropped += nb_rx;\n+\t\twhile (nb_rx > 0)\n+\t\t\trte_pktmbuf_free(pkts[--nb_rx]);\n+\t}\n+}\n+\n+/**\n+ * Forward packets from shared Rx queue.\n+ *\n+ * Source port of packets are identified by mbuf->port.\n+ */\n+static void\n+forward_shared_rxq(struct fwd_stream *fs, uint16_t nb_rx,\n+\t\t struct rte_mbuf **pkts_burst)\n+{\n+\tuint16_t i, nb_sub_burst, port, last_port;\n+\n+\tnb_sub_burst = 0;\n+\tlast_port = pkts_burst[0]->port;\n+\t/* Locate sub-burst according to mbuf->port. */\n+\tfor (i = 0; i < nb_rx - 1; ++i) {\n+\t\trte_prefetch0(pkts_burst[i + 1]);\n+\t\tport = pkts_burst[i]->port;\n+\t\tif (i > 0 && last_port != port) {\n+\t\t\t/* Forward packets with same source port. */\n+\t\t\tforward_sub_burst(fs, last_port, nb_sub_burst,\n+\t\t\t\t\t &pkts_burst[i - nb_sub_burst]);\n+\t\t\tnb_sub_burst = 0;\n+\t\t\tlast_port = port;\n+\t\t}\n+\t\tnb_sub_burst++;\n+\t}\n+\t/* Last sub-burst. */\n+\tnb_sub_burst++;\n+\tforward_sub_burst(fs, last_port, nb_sub_burst,\n+\t\t\t &pkts_burst[nb_rx - nb_sub_burst]);\n+}\n+\n+static void\n+shared_rxq_fwd(struct fwd_stream *fs)\n+{\n+\tstruct rte_mbuf *pkts_burst[nb_pkt_per_burst];\n+\tuint16_t nb_rx;\n+\tuint64_t start_tsc = 0;\n+\n+\tget_start_cycles(&start_tsc);\n+\tnb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,\n+\t\t\t\t nb_pkt_per_burst);\n+\tinc_rx_burst_stats(fs, nb_rx);\n+\tif (unlikely(nb_rx == 0))\n+\t\treturn;\n+\tforward_shared_rxq(fs, nb_rx, pkts_burst);\n+\tget_end_cycles(fs, start_tsc);\n+}\n+\n+struct fwd_engine shared_rxq_engine = {\n+\t.fwd_mode_name = \"shared_rxq\",\n+\t.port_fwd_begin = NULL,\n+\t.port_fwd_end = NULL,\n+\t.packet_fwd = shared_rxq_fwd,\n+};\ndiff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c\nindex df301e2e683..e29837b3b16 100644\n--- a/app/test-pmd/testpmd.c\n+++ b/app/test-pmd/testpmd.c\n@@ -188,6 +188,7 @@ struct fwd_engine * fwd_engines[] = {\n #ifdef RTE_LIBRTE_IEEE1588\n \t&ieee1588_fwd_engine,\n #endif\n+\t&shared_rxq_engine,\n \tNULL,\n };\n \ndiff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h\nindex f121a2da90c..f1fd607e365 100644\n--- a/app/test-pmd/testpmd.h\n+++ b/app/test-pmd/testpmd.h\n@@ -299,6 +299,7 @@ extern struct fwd_engine five_tuple_swap_fwd_engine;\n #ifdef RTE_LIBRTE_IEEE1588\n extern struct fwd_engine ieee1588_fwd_engine;\n #endif\n+extern struct fwd_engine shared_rxq_engine;\n \n extern struct fwd_engine * fwd_engines[]; /**< NULL terminated array. */\n extern cmdline_parse_inst_t cmd_set_raw;\ndiff --git a/doc/guides/testpmd_app_ug/run_app.rst b/doc/guides/testpmd_app_ug/run_app.rst\nindex ff5908dcd50..e4b97844ced 100644\n--- a/doc/guides/testpmd_app_ug/run_app.rst\n+++ b/doc/guides/testpmd_app_ug/run_app.rst\n@@ -252,6 +252,7 @@ The command line options are:\n tm\n noisy\n 5tswap\n+ shared-rxq\n \n * ``--rss-ip``\n \ndiff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst\nindex 8ead7a4a712..499874187f2 100644\n--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst\n+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst\n@@ -314,7 +314,7 @@ set fwd\n Set the packet forwarding mode::\n \n testpmd> set fwd (io|mac|macswap|flowgen| \\\n- rxonly|txonly|csum|icmpecho|noisy|5tswap) (\"\"|retry)\n+ rxonly|txonly|csum|icmpecho|noisy|5tswap|shared-rxq) (\"\"|retry)\n \n ``retry`` can be specified for forwarding engines except ``rx_only``.\n \n@@ -357,6 +357,9 @@ The available information categories are:\n \n L4 swaps the source port and destination port of transport layer (TCP and UDP).\n \n+* ``shared-rxq``: Receive only for shared Rx queue.\n+ Resolve packet source port from mbuf and update stream statistics accordingly.\n+\n Example::\n \n testpmd> set fwd rxonly\n", "prefixes": [ "v6", "5/5" ] }