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{
    "id": 53708,
    "url": "http://patches.dpdk.org/api/patches/53708/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/1558946129-5816-3-git-send-email-skori@marvell.com/",
    "project": {
        "id": 1,
        "url": "http://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",
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        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<1558946129-5816-3-git-send-email-skori@marvell.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1558946129-5816-3-git-send-email-skori@marvell.com",
    "date": "2019-05-27T08:35:29",
    "name": "[2/2] app/testpmd: creating mbuf pool based on maximum supported segments",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "e138d7d3fd3e8fce013dabd4740cbda24bad9ce7",
    "submitter": {
        "id": 1318,
        "url": "http://patches.dpdk.org/api/people/1318/?format=api",
        "name": "Sunil Kumar Kori",
        "email": "skori@marvell.com"
    },
    "delegate": {
        "id": 319,
        "url": "http://patches.dpdk.org/api/users/319/?format=api",
        "username": "fyigit",
        "first_name": "Ferruh",
        "last_name": "Yigit",
        "email": "ferruh.yigit@amd.com"
    },
    "mbox": "http://patches.dpdk.org/project/dpdk/patch/1558946129-5816-3-git-send-email-skori@marvell.com/mbox/",
    "series": [
        {
            "id": 4781,
            "url": "http://patches.dpdk.org/api/series/4781/?format=api",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=4781",
            "date": "2019-05-27T08:35:27",
            "name": "Enabling default mbuf segments support",
            "version": 1,
            "mbox": "http://patches.dpdk.org/series/4781/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/patches/53708/comments/",
    "check": "success",
    "checks": "http://patches.dpdk.org/api/patches/53708/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
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        ],
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com;\n\th=from : to : cc :\n\tsubject : date : message-id : in-reply-to : references : mime-version\n\t: content-type; s=pfpt0818;\n\tbh=nDxmj1ppyFYqE+knpHYyCYjV46XfBrQn48hpeJXH4w4=; \n\tb=FZE41z7/8O8RW5GWCIux3mbKhEnwJTAkFglpuA3UjstXoaELnfuSBnxWTRPQuwWclQ3f\n\tSMa8oIAMvPgoW2ZivwgZLJJ5/A4EYJhNLd1mgewTQ/VW3gaOdX0IlfKw0cWsO5tUS73M\n\t+drkOZi+cskdSckS1L4NrFJMAsNWc/ZBBB5/rSdleFg5dpfxfrpHJXq5UHUzzKyfo9JW\n\tmhqlebWiaNmFx92EwOgkPDEcMlWt1JCwvMzMYnNjM+6vxYI1BrjSUnne4c5GZF+NsWsc\n\t33Ia/4VxVPAXoCl5JpYV3jm3k3ypODZ3IUCMntgGZvPThDNCmuKilybpK3fdyKN8oxPW\n\tKA== ",
        "From": "Sunil Kumar Kori <skori@marvell.com>",
        "To": "<thomas@monjalon.net>, <ferruh.yigit@intel.com>,\n\t<arybchenko@solarflare.com>, <wenzhuo.lu@intel.com>,\n\t<jingjing.wu@intel.com>, <bernard.iremonger@intel.com>",
        "CC": "<dev@dpdk.org>, Sunil Kumar Kori <skori@marvell.com>",
        "Date": "Mon, 27 May 2019 14:05:29 +0530",
        "Message-ID": "<1558946129-5816-3-git-send-email-skori@marvell.com>",
        "X-Mailer": "git-send-email 1.8.3.1",
        "In-Reply-To": "<1558946129-5816-1-git-send-email-skori@marvell.com>",
        "References": "<1558946129-5816-1-git-send-email-skori@marvell.com>",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain",
        "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10434:, ,\n\tdefinitions=2019-05-27_06:, , signatures=0",
        "Subject": "[dpdk-dev] [PATCH 2/2] app/testpmd: creating mbuf pool based on\n\tmaximum supported segments",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
        "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<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\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "Configuring buffer size based following parameters:\n- max-pkt-len\n- max supported segments per MTU\n\nBuffer size are configured as given below:\n- If platform supports infinite segments per packet then default\n  buffer size is used.\n- If platform supports nb_mtu_seg_max segments then buffer size\n  is configured as (max-pkt-len / nb_mtu_seg_max) + headroom\n\nSigned-off-by: Sunil Kumar Kori <skori@marvell.com>\n---\n app/test-pmd/testpmd.c | 21 +++++++++++++++++++++\n 1 file changed, 21 insertions(+)",
    "diff": "diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c\nindex f0061d9..b8c006b 100644\n--- a/app/test-pmd/testpmd.c\n+++ b/app/test-pmd/testpmd.c\n@@ -1100,6 +1100,8 @@ struct extmem_param {\n \tuint8_t port_per_socket[RTE_MAX_NUMA_NODES];\n \tstruct rte_gro_param gro_param;\n \tuint32_t gso_types;\n+\tuint16_t data_size;\n+\tbool warning = 0;\n \tint k;\n \n \tmemset(port_per_socket,0,RTE_MAX_NUMA_NODES);\n@@ -1167,8 +1169,27 @@ struct extmem_param {\n \t\tport->need_reconfig = 1;\n \t\tport->need_reconfig_queues = 1;\n \t\tport->tx_metadata = 0;\n+\n+\t\t/* Check for maximum number of segments per MTU. Accordingly\n+\t\t * update the mbuf data size.\n+\t\t */\n+\t\tif (port->dev_info.rx_desc_lim.nb_mtu_seg_max != UINT16_MAX) {\n+\t\t\tdata_size = rx_mode.max_rx_pkt_len /\n+\t\t\t\tport->dev_info.rx_desc_lim.nb_mtu_seg_max;\n+\n+\t\t\tif ((data_size + RTE_PKTMBUF_HEADROOM) >\n+\t\t\t\t\t\t\tmbuf_data_size) {\n+\t\t\t\tmbuf_data_size = data_size +\n+\t\t\t\t\t\t RTE_PKTMBUF_HEADROOM;\n+\t\t\t\twarning = 1;\n+\t\t\t}\n+\t\t}\n \t}\n \n+\tif (warning)\n+\t\tTESTPMD_LOG(WARNING, \"Configured mbuf size %hu\\n\",\n+\t\t\t    mbuf_data_size);\n+\n \t/*\n \t * Create pools of mbuf.\n \t * If NUMA support is disabled, create a single pool of mbuf in\n",
    "prefixes": [
        "2/2"
    ]
}