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GET /api/patches/99458/?format=api
{ "id": 99458, "url": "https://patches.dpdk.org/api/patches/99458/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20210923080129.5068-2-alvinx.zhang@intel.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": "<20210923080129.5068-2-alvinx.zhang@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20210923080129.5068-2-alvinx.zhang@intel.com", "date": "2021-09-23T08:01:29", "name": "[v6,2/2] app/testpmd: fix txonly forwarding", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "dcd4cf916124406d3b134365d75a369e6d7eb9d6", "submitter": { "id": 1398, "url": "https://patches.dpdk.org/api/people/1398/?format=api", "name": "Alvin Zhang", "email": "alvinx.zhang@intel.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/20210923080129.5068-2-alvinx.zhang@intel.com/mbox/", "series": [ { "id": 19099, "url": "https://patches.dpdk.org/api/series/19099/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=19099", "date": "2021-09-23T08:01:28", "name": "[v6,1/2] app/testpmd: update forward engine beginning", "version": 6, "mbox": "https://patches.dpdk.org/series/19099/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/99458/comments/", "check": "success", "checks": "https://patches.dpdk.org/api/patches/99458/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 8CDEAA0C43;\n\tThu, 23 Sep 2021 10:01:46 +0200 (CEST)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id A438241244;\n\tThu, 23 Sep 2021 10:01:45 +0200 (CEST)", "from mga12.intel.com (mga12.intel.com [192.55.52.136])\n by mails.dpdk.org (Postfix) with ESMTP id 596CF410DC;\n Thu, 23 Sep 2021 10:01:39 +0200 (CEST)", "from fmsmga004.fm.intel.com ([10.253.24.48])\n by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 23 Sep 2021 01:01:38 -0700", "from shwdenpg235.ccr.corp.intel.com ([10.253.106.22])\n by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 23 Sep 2021 01:01:36 -0700" ], "X-IronPort-AV": [ "E=McAfee;i=\"6200,9189,10115\"; a=\"203287698\"", "E=Sophos;i=\"5.85,316,1624345200\"; d=\"scan'208\";a=\"203287698\"", "E=Sophos;i=\"5.85,316,1624345200\"; d=\"scan'208\";a=\"534214006\"" ], "From": "Alvin Zhang <alvinx.zhang@intel.com>", "To": "xiaoyun.li@intel.com,\n\tkonstantin.ananyev@intel.com", "Cc": "dev@dpdk.org,\n\tAlvin Zhang <alvinx.zhang@intel.com>,\n\tstable@dpdk.org", "Date": "Thu, 23 Sep 2021 16:01:29 +0800", "Message-Id": "<20210923080129.5068-2-alvinx.zhang@intel.com>", "X-Mailer": "git-send-email 2.21.0.windows.1", "In-Reply-To": "<20210923080129.5068-1-alvinx.zhang@intel.com>", "References": "<20210923014951.12696-1-alvinx.zhang@intel.com>\n <20210923080129.5068-1-alvinx.zhang@intel.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[dpdk-dev] [PATCH v6 2/2] app/testpmd: fix txonly forwarding", "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": "When random number of Tx segments is enabled, because the actual\nnumber of segments may be only one, the first segment of the Tx\npackets must accommodate a complete being sending Eth/IP/UDP packet.\n\nBesides, if multiple flow is enabled, the forwarding will update\nthe IP and UDP header, these headers shouldn't cross segments.\nThis also requires the first Tx segment can accommodate a complete\nEth/IP/UDP packet.\n\nIn addition, if time stamp is enabled, the forwarding needs more\nTx segment space for time stamp information.\n\nThis patch adds checks in beginning of forward engine to make sure\nall above conditions are met.\n\nBugzilla ID: 797\nFixes: 79bec05b32b7 (\"app/testpmd: add ability to split outgoing packets\")\nCc: stable@dpdk.org\n\nSigned-off-by: Alvin Zhang <alvinx.zhang@intel.com>\nAcked-by: Xiaoyun Li <xiaoyun.li@intel.com>\n---\n\nv5: fixes a compilation issue\nv6: update the commit summary and some logs\n---\n app/test-pmd/txonly.c | 64 +++++++++++++++++++++++++++++++++++++++++----------\n 1 file changed, 52 insertions(+), 12 deletions(-)", "diff": "diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c\nindex 386a4ff..8623239 100644\n--- a/app/test-pmd/txonly.c\n+++ b/app/test-pmd/txonly.c\n@@ -40,6 +40,13 @@\n \n #include \"testpmd.h\"\n \n+struct tx_timestamp {\n+\trte_be32_t signature;\n+\trte_be16_t pkt_idx;\n+\trte_be16_t queue_idx;\n+\trte_be64_t ts;\n+};\n+\n /* use RFC863 Discard Protocol */\n uint16_t tx_udp_src_port = 9;\n uint16_t tx_udp_dst_port = 9;\n@@ -257,12 +264,7 @@\n \n \tif (unlikely(timestamp_enable)) {\n \t\tuint64_t skew = RTE_PER_LCORE(timestamp_qskew);\n-\t\tstruct {\n-\t\t\trte_be32_t signature;\n-\t\t\trte_be16_t pkt_idx;\n-\t\t\trte_be16_t queue_idx;\n-\t\t\trte_be64_t ts;\n-\t\t} timestamp_mark;\n+\t\tstruct tx_timestamp timestamp_mark;\n \n \t\tif (unlikely(timestamp_init_req !=\n \t\t\t\tRTE_PER_LCORE(timestamp_idone))) {\n@@ -438,13 +440,22 @@\n static int\n tx_only_begin(portid_t pi)\n {\n-\tuint16_t pkt_data_len;\n+\tuint16_t pkt_hdr_len, pkt_data_len;\n \tint dynf;\n \n-\tpkt_data_len = (uint16_t) (tx_pkt_length - (\n-\t\t\t\t\tsizeof(struct rte_ether_hdr) +\n-\t\t\t\t\tsizeof(struct rte_ipv4_hdr) +\n-\t\t\t\t\tsizeof(struct rte_udp_hdr)));\n+\tpkt_hdr_len = (uint16_t)(sizeof(struct rte_ether_hdr) +\n+\t\t\t\t sizeof(struct rte_ipv4_hdr) +\n+\t\t\t\t sizeof(struct rte_udp_hdr));\n+\tpkt_data_len = tx_pkt_length - pkt_hdr_len;\n+\n+\tif ((tx_pkt_split == TX_PKT_SPLIT_RND || txonly_multi_flow) &&\n+\t tx_pkt_seg_lengths[0] < pkt_hdr_len) {\n+\t\tTESTPMD_LOG(ERR,\n+\t\t\t \"Random segment number or multiple flow enabled, but tx_pkt_seg_lengths[0] %u < %u (needed)\\n\",\n+\t\t\t tx_pkt_seg_lengths[0], pkt_hdr_len);\n+\t\treturn -EINVAL;\n+\t}\n+\n \tsetup_pkt_udp_ip_headers(&pkt_ip_hdr, &pkt_udp_hdr, pkt_data_len);\n \n \ttimestamp_enable = false;\n@@ -463,8 +474,37 @@\n \t\t\t timestamp_mask &&\n \t\t\t timestamp_off >= 0 &&\n \t\t\t !rte_eth_read_clock(pi, ×tamp_initial[pi]);\n-\tif (timestamp_enable)\n+\n+\tif (timestamp_enable) {\n+\t\tpkt_hdr_len += sizeof(struct tx_timestamp);\n+\n+\t\tif (tx_pkt_split == TX_PKT_SPLIT_RND) {\n+\t\t\tif (tx_pkt_seg_lengths[0] < pkt_hdr_len) {\n+\t\t\t\tTESTPMD_LOG(ERR,\n+\t\t\t\t\t \"Time stamp and random segment number enabled, but tx_pkt_seg_lengths[0] %u < %u (needed)\\n\",\n+\t\t\t\t\t tx_pkt_seg_lengths[0], pkt_hdr_len);\n+\t\t\t\treturn -EINVAL;\n+\t\t\t}\n+\t\t} else {\n+\t\t\tuint16_t total = 0;\n+\t\t\tuint8_t i;\n+\n+\t\t\tfor (i = 0; i < tx_pkt_nb_segs; i++) {\n+\t\t\t\ttotal += tx_pkt_seg_lengths[i];\n+\t\t\t\tif (total >= pkt_hdr_len)\n+\t\t\t\t\tbreak;\n+\t\t\t}\n+\n+\t\t\tif (total < pkt_hdr_len) {\n+\t\t\t\tTESTPMD_LOG(ERR,\n+\t\t\t\t\t \"No enough Tx segment space for time stamp info, total %u < %u (needed)\\n\",\n+\t\t\t\t\t total, pkt_hdr_len);\n+\t\t\t\treturn -EINVAL;\n+\t\t\t}\n+\t\t}\n \t\ttimestamp_init_req++;\n+\t}\n+\n \t/* Make sure all settings are visible on forwarding cores.*/\n \trte_wmb();\n \treturn 0;\n", "prefixes": [ "v6", "2/2" ] }