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GET /api/patches/1247/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 1247,
    "url": "https://patches.dpdk.org/api/patches/1247/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/1415635166-1364-13-git-send-email-olivier.matz@6wind.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": "<1415635166-1364-13-git-send-email-olivier.matz@6wind.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1415635166-1364-13-git-send-email-olivier.matz@6wind.com",
    "date": "2014-11-10T15:59:26",
    "name": "[dpdk-dev,12/12] testpmd: add a verbose mode csum forward engine",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "7338118a8a042587e5b35b1ba5961361bd2f86f7",
    "submitter": {
        "id": 8,
        "url": "https://patches.dpdk.org/api/people/8/?format=api",
        "name": "Olivier Matz",
        "email": "olivier.matz@6wind.com"
    },
    "delegate": null,
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/1415635166-1364-13-git-send-email-olivier.matz@6wind.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/1247/comments/",
    "check": "pending",
    "checks": "https://patches.dpdk.org/api/patches/1247/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
            "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id B839B7FA0;\n\tMon, 10 Nov 2014 16:50:31 +0100 (CET)",
            "from mail-wi0-f179.google.com (mail-wi0-f179.google.com\n\t[209.85.212.179]) by dpdk.org (Postfix) with ESMTP id 4A8F27F80\n\tfor <dev@dpdk.org>; Mon, 10 Nov 2014 16:50:19 +0100 (CET)",
            "by mail-wi0-f179.google.com with SMTP id h11so10924328wiw.12\n\tfor <dev@dpdk.org>; Mon, 10 Nov 2014 08:00:05 -0800 (PST)",
            "from glumotte.dev.6wind.com (guy78-3-82-239-227-177.fbx.proxad.net.\n\t[82.239.227.177]) by mx.google.com with ESMTPSA id\n\tll2sm10966561wjb.11.2014.11.10.08.00.03 for <multiple recipients>\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128);\n\tMon, 10 Nov 2014 08:00:04 -0800 (PST)"
        ],
        "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20130820;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references;\n\tbh=azJM1kN9qcQY2WQDZYgc/ImxPDud3Qvfj+Sn1ebgHbY=;\n\tb=fO5yLqgxOQGBw3pbA2NKdsZAoS2eFsNlbc0zMY4pHYyZcZ/QMoLIa9XBPY5CcoTsTm\n\tLfINQhRW2TNiMcMwSeiACztbixUBc43alCxufetzSCR6sJ0vN50OKGts5EUfoy7b8Jbd\n\tSZuBECoRBgfeq/4OOVYia68ZWDEAMZHicjoM7mbkAY/1qyIhb7x/x+H39BW5hqAdeDWV\n\tJd3f+F8/UjCXBfBtHGb7pZOUgAVCxloL6x8REle2STT4o+zVupB64bJgjwU/cKBRooao\n\t0hgFQcCOn/vwreJ8YxDM/zF2oaaxSbZ2brnih5zzq4LWfGeL/meXJIcTb1MiJto6b+Tw\n\trjdw==",
        "X-Gm-Message-State": "ALoCoQlhK4M6PjCUE1gR/My4y0DylVh0cOTpYAFfkduXZ5bwPHRd0eQPUN9ejf4fv4ZWznbHtOkX",
        "X-Received": "by 10.194.92.47 with SMTP id cj15mr4163957wjb.29.1415635205117; \n\tMon, 10 Nov 2014 08:00:05 -0800 (PST)",
        "From": "Olivier Matz <olivier.matz@6wind.com>",
        "To": "dev@dpdk.org",
        "Date": "Mon, 10 Nov 2014 16:59:26 +0100",
        "Message-Id": "<1415635166-1364-13-git-send-email-olivier.matz@6wind.com>",
        "X-Mailer": "git-send-email 2.1.0",
        "In-Reply-To": "<1415635166-1364-1-git-send-email-olivier.matz@6wind.com>",
        "References": "<1415635166-1364-1-git-send-email-olivier.matz@6wind.com>",
        "Cc": "jigsaw@gmail.com",
        "Subject": "[dpdk-dev] [PATCH 12/12] testpmd: add a verbose mode csum forward\n\tengine",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "patches and discussions about DPDK <dev.dpdk.org>",
        "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "List-Archive": "<http://dpdk.org/ml/archives/dev/>",
        "List-Post": "<mailto:dev@dpdk.org>",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "If the user specifies 'set verbose 1' in testpmd command line,\nthe csum forward engine will dump some informations about received\nand transmitted packets, especially which flags are set and what\nvalues are assigned to l2_len, l3_len, l4_len and tso_segsz.\n\nThis can help someone implementing TSO or hardware checksum offload to\nunderstand how to configure the mbufs.\n\nExample of output for one packet:\n\n --------------\n rx: l2_len=14 ethertype=800 l3_len=20 l4_proto=6 l4_len=20\n tx: m->l2_len=14 m->l3_len=20 m->l4_len=20\n tx: m->tso_segsz=800\n tx: flags=PKT_TX_IP_CKSUM PKT_TX_TCP_SEG\n --------------\n\nSigned-off-by: Olivier Matz <olivier.matz@6wind.com>\n---\n app/test-pmd/csumonly.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 51 insertions(+)",
    "diff": "diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c\nindex 7995ff5..74521d4 100644\n--- a/app/test-pmd/csumonly.c\n+++ b/app/test-pmd/csumonly.c\n@@ -575,6 +575,57 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)\n \t\tm->tso_segsz = tso_segsz;\n \t\tm->ol_flags = ol_flags;\n \n+\t\t/* if verbose mode is enabled, dump debug info */\n+\t\tif (verbose_level > 0) {\n+\t\t\tstruct {\n+\t\t\t\tuint64_t flag;\n+\t\t\t\tuint64_t mask;\n+\t\t\t} tx_flags[] = {\n+\t\t\t\t{ PKT_TX_IP_CKSUM, PKT_TX_IP_CKSUM },\n+\t\t\t\t{ PKT_TX_UDP_CKSUM, PKT_TX_L4_MASK },\n+\t\t\t\t{ PKT_TX_TCP_CKSUM, PKT_TX_L4_MASK },\n+\t\t\t\t{ PKT_TX_SCTP_CKSUM, PKT_TX_L4_MASK },\n+\t\t\t\t{ PKT_TX_VXLAN_CKSUM, PKT_TX_VXLAN_CKSUM },\n+\t\t\t\t{ PKT_TX_TCP_SEG, PKT_TX_TCP_SEG },\n+\t\t\t};\n+\t\t\tunsigned j;\n+\t\t\tconst char *name;\n+\n+\t\t\tprintf(\"-----------------\\n\");\n+\t\t\t/* dump rx parsed packet info */\n+\t\t\tprintf(\"rx: l2_len=%d ethertype=%x l3_len=%d \"\n+\t\t\t\t\"l4_proto=%d l4_len=%d\\n\",\n+\t\t\t\tl2_len, rte_be_to_cpu_16(ethertype),\n+\t\t\t\tl3_len, l4_proto, l4_len);\n+\t\t\tif (tunnel == 1)\n+\t\t\t\tprintf(\"rx: outer_l2_len=%d outer_ethertype=%x \"\n+\t\t\t\t\t\"outer_l3_len=%d\\n\", outer_l2_len,\n+\t\t\t\t\trte_be_to_cpu_16(outer_ethertype),\n+\t\t\t\t\touter_l3_len);\n+\t\t\t/* dump tx packet info */\n+\t\t\tif ((testpmd_ol_flags & (TESTPMD_TX_OFFLOAD_IP_CKSUM |\n+\t\t\t\t\t\tTESTPMD_TX_OFFLOAD_UDP_CKSUM |\n+\t\t\t\t\t\tTESTPMD_TX_OFFLOAD_TCP_CKSUM |\n+\t\t\t\t\t\tTESTPMD_TX_OFFLOAD_SCTP_CKSUM)) ||\n+\t\t\t\ttso_segsz != 0)\n+\t\t\t\tprintf(\"tx: m->l2_len=%d m->l3_len=%d \"\n+\t\t\t\t\t\"m->l4_len=%d\\n\",\n+\t\t\t\t\tm->l2_len, m->l3_len, m->l4_len);\n+\t\t\tif ((tunnel == 1) &&\n+\t\t\t\t(testpmd_ol_flags & TESTPMD_TX_OFFLOAD_VXLAN_CKSUM))\n+\t\t\t\tprintf(\"tx: m->inner_l2_len=%d m->inner_l3_len=%d\\n\",\n+\t\t\t\t\tm->inner_l2_len, m->inner_l3_len);\n+\t\t\tif (tso_segsz != 0)\n+\t\t\t\tprintf(\"tx: m->tso_segsz=%d\\n\", m->tso_segsz);\n+\t\t\tprintf(\"tx: flags=\");\n+\t\t\tfor (j = 0; j < sizeof(tx_flags)/sizeof(*tx_flags); j++) {\n+\t\t\t\tname = rte_get_tx_ol_flag_name(tx_flags[j].flag);\n+\t\t\t\tif ((m->ol_flags & tx_flags[j].mask) ==\n+\t\t\t\t\ttx_flags[j].flag)\n+\t\t\t\t\tprintf(\"%s \", name);\n+\t\t\t}\n+\t\t\tprintf(\"\\n\");\n+\t\t}\n \t}\n \tnb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);\n \tfs->tx_packets += nb_tx;\n",
    "prefixes": [
        "dpdk-dev",
        "12/12"
    ]
}