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{ "id": 1175404, "url": "http://patchwork.ozlabs.org/api/covers/1175404/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/1570812820-20052-1-git-send-email-johunt@akamai.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api", "name": "Intel Wired Ethernet development", "link_name": "intel-wired-lan", "list_id": "intel-wired-lan.osuosl.org", "list_email": "intel-wired-lan@osuosl.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1570812820-20052-1-git-send-email-johunt@akamai.com>", "list_archive_url": null, "date": "2019-10-11T16:53:37", "name": "[v3,0/3] igb, ixgbe, i40e UDP segmentation offload support", "submitter": { "id": 4788, "url": "http://patchwork.ozlabs.org/api/people/4788/?format=api", "name": "Josh Hunt", "email": "johunt@akamai.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/1570812820-20052-1-git-send-email-johunt@akamai.com/mbox/", "series": [ { "id": 135642, "url": "http://patchwork.ozlabs.org/api/series/135642/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=135642", "date": "2019-10-11T16:53:37", "name": "igb, ixgbe, i40e UDP segmentation offload support", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/135642/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/1175404/comments/", "headers": { "Return-Path": "<intel-wired-lan-bounces@osuosl.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Authentication-Results": [ "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=osuosl.org\n\t(client-ip=140.211.166.138; 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Fri, 11 Oct 2019 17:53:14 +0100", "from prod-mail-ppoint6 (prod-mail-ppoint6.akamai.com [184.51.33.61]\n\t(may be forged))\n\tby mx0a-00190b01.pphosted.com with ESMTP id 2vjt7us38t-1\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256\n\tverify=NOT); Fri, 11 Oct 2019 17:53:14 +0100", "from pps.filterd (prod-mail-ppoint6.akamai.com [127.0.0.1])\n\tby prod-mail-ppoint6.akamai.com (8.16.0.27/8.16.0.27) with SMTP id\n\tx9BGldL0019539; Fri, 11 Oct 2019 12:53:13 -0400", "from prod-mail-relay10.akamai.com ([172.27.118.251])\n\tby prod-mail-ppoint6.akamai.com with ESMTP id 2vepgwg2r1-1;\n\tFri, 11 Oct 2019 12:53:13 -0400", "from bos-lpwg1 (bos-lpwg1.kendall.corp.akamai.com [172.29.171.203])\n\tby prod-mail-relay10.akamai.com (Postfix) with ESMTP id 0A5F51FC95; \n\tFri, 11 Oct 2019 16:53:13 +0000 (GMT)", "from johunt by bos-lpwg1 with local (Exim 4.86_2)\n\t(envelope-from <johunt@akamai.com>)\n\tid 1iIyAg-0005EM-I7; Fri, 11 Oct 2019 12:53:42 -0400" ], "X-Virus-Scanned": [ "amavisd-new at osuosl.org", "amavisd-new at osuosl.org" ], "X-Greylist": "from auto-whitelisted by SQLgrey-1.7.6", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=akamai.com;\n\th=from : to : cc : subject : date : message-id; s=jan2016.eng;\n\tbh=8pSEexMQxWPX61135+mphsfh31vay03fJ7VPUmG4u7E=;\n\tb=oGT9RA0OekeB6ZE85otLWr6H+JEFLV3FIvr4H9S9qX76R+rzDIQ3slBaIlnYQjv92axx\n\txHaIMFBZClTI/3JgAeBnQ54g/a1bMaub1ER5qTLdGkj99Ce0RXAXLbuWH33SR7XtOPu8\n\tTCgL3rH439c9Z7p4u83kDbEo02CBw1O0Np78tATdw8opIuabCa4eP8TIP7efmscLrfKa\n\t2desdQWnwRXOXPx126X37A6KuO5tYAmJh/FvrvJy2Xy0fsTHYMbalaBeSEdE60DynXRx\n\tboP0A5XlAB3MgsFyVjGztJePXECkbbPh6NZVobErRzUO44e+f0at7Waeb94kiCPoLlrI\n\t+g== ", "From": "Josh Hunt <johunt@akamai.com>", "To": "netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org,\n\tjeffrey.t.kirsher@intel.com", "Date": "Fri, 11 Oct 2019 12:53:37 -0400", "Message-Id": "<1570812820-20052-1-git-send-email-johunt@akamai.com>", "X-Mailer": "git-send-email 2.7.4", "X-Proofpoint-Virus-Version": [ "vendor=fsecure engine=2.50.10434:, ,\n\tdefinitions=2019-10-11_10:, , signatures=0", "vendor=fsecure engine=2.50.10434:6.0.95,1.0.8\n\tdefinitions=2019-10-11_10:2019-10-10,2019-10-11 signatures=0" ], "X-Proofpoint-Spam-Details": [ "rule=notspam policy=default score=0 suspectscore=0\n\tmalwarescore=0\n\tphishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999\n\tadultscore=0 classifier=spam adjust=0 reason=mlx scancount=1\n\tengine=8.0.1-1908290000 definitions=main-1910110148", "rule=notspam policy=default score=0 spamscore=0\n\tadultscore=0 mlxscore=0\n\tpriorityscore=1501 impostorscore=0 bulkscore=0 clxscore=1015\n\tphishscore=0\n\tsuspectscore=0 mlxlogscore=999 malwarescore=0 lowpriorityscore=0\n\tclassifier=spam adjust=0 reason=mlx scancount=1\n\tengine=8.12.0-1908290000\n\tdefinitions=main-1910110149" ], "Subject": "[Intel-wired-lan] [PATCH v3 0/3] igb, ixgbe,\n\ti40e UDP segmentation offload support", "X-BeenThere": "intel-wired-lan@osuosl.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n\t<intel-wired-lan.osuosl.org>", "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@osuosl.org?subject=help>", "List-Subscribe": "<https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>", "Cc": "willemb@google.com, alexander.h.duyck@linux.intel.com,\n\tJosh Hunt <johunt@akamai.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "Alexander Duyck posted a series in 2018 proposing adding UDP segmentation\noffload support to ixgbe and ixgbevf, but those patches were never\naccepted:\n\nhttps://lore.kernel.org/netdev/20180504003556.4769.11407.stgit@localhost.localdomain/\n\nThis series is a repost of his ixgbe patch along with a similar\nchange to the igb and i40e drivers. Testing using the udpgso_bench_tx\nbenchmark shows a noticeable performance improvement with these changes\napplied.\n\nI've shared the benchmark script I've used to generate the #s in this mail:\nhttps://lore.kernel.org/netdev/0e0e706c-4ce9-c27a-af55-339b4eb6d524@akamai.com/T/#mfe4c35c57a3860cda5306b63f61068f837242ee5\n\nv3 change:\n * Change gso_type order check, suggested by Alex\n\nv2 changes:\n * Added Alex's suggested-by tag to ixgbe patch\n * Checking for gso_type, suggested by Sridhar\n * Fixed bug in ixgbe patch where I accidentally left the old type_tucmd\n set to TCP\n * Updated perf #s below\n * includes changes above\n * fixed bad config on my igb machine\n * added chip used for testing next to driver name\n\nAll #s below were run with:\nudpgso_bench_tx -C 1 -4 -D 172.25.43.133 -z -l 30 -S 0 -u -s $pkt_size\n\nigb (i210)::\nSW GSO (ethtool -K eth0 tx-udp-segmentation off):\n$pkt_size\tkB/s(sar)\tMB/s\tCalls/s\tMsg/s\tCPU\tMB2CPU\n========================================================================\n1472\t\t120167.13\t114\t81278\t81278\t16.24\t7.01\n2944\t\t120166.83\t114\t40641\t40641\t12.82\t8.89\n5888\t\t120166.42\t114\t20320\t20320\t10.14\t11.24\n11776\t\t120166.43\t114\t10160\t10160\t8.55\t13.33\n23552\t\t120167.24\t114\t5080\t5080\t7.76\t14.69\n47104\t\t120166.83\t114\t2540\t2540\t7.07\t16.12\n61824\t\t120167.08\t114\t1935\t1935\t7.07\t16.12\n\nHW GSO offload (ethtool -K eth0 tx-udp-segmentation on):\n$pkt_size\tkB/s(sar)\tMB/s\tCalls/s\tMsg/s\tCPU\tMB2CPU\n========================================================================\n1472\t\t120167.05\t114\t81276\t81276\t16.13\t7.06\n2944\t\t120166.94\t114\t40640\t40640\t8.66\t13.16\n5888\t\t120166.84\t114\t20320\t20320\t5.34\t21.34\n11776\t\t120166.84\t114\t10160\t10160\t3.34\t34.13\n23552\t\t120167.25\t114\t5080\t5080\t2.55\t44.70\n47104\t\t120149.30\t113\t2539\t2539\t2.14\t52.80\n61824\t\t120165.41\t114\t1935\t1935\t2.04\t55.88\n\nixgbe (82599ES)::\nSW GSO:\n$pkt_size\tkB/s(sar)\tMB/s\tCalls/s\tMsg/s\tCPU\tMB2CPU\n========================================================================\n1472\t\t1043972.83\t990\t706122\t706122\t100\t9.90\n2944\t\t1201623.17\t1140\t406367\t406367\t95.97\t11.87\n5888\t\t1201629.46\t1140\t203184\t203184\t56\t20.35\n11776\t\t1201631.38\t1140\t101590\t101590\t42.72\t26.68\n23552\t\t1201633.94\t1140\t50796\t50796\t36.31\t31.39\n47104\t\t1201631.05\t1140\t25397\t25397\t33.91\t33.61\n61824\t\t1201629.96\t1140\t19350\t19350\t33.38\t34.15\n\nHW GSO Offload:\n$pkt_size\tkB/s(sar)\tMB/s\tCalls/s\tMsg/s\tCPU\tMB2CPU\n========================================================================\n1472\t\t1053393.41\t999\t712679\t712679\t100\t9.99\n2944\t\t1201631.19\t1140\t406357\t406357\t57.92\t19.68\n5888\t\t1201622.51\t1140\t203178\t203178\t30.66\t37.18\n11776\t\t1201626.60\t1140\t101590\t101590\t16.89\t67.49\n23552\t\t1201617.19\t1140\t50795\t50795\t10.11\t112.75\n47104\t\t1200218.72\t1138\t25368\t25368\t6.86\t165.88\n61824\t\t1201619.66\t1140\t19350\t19350\t5.38\t211.89\n\ni40e (x710)::\nSW GSO:\n$pkt_size\tkB/s(sar)\tMB/s\tCalls/s\tMsg/s\tCPU\tMB2CPU\n========================================================================\n1472\t\t642718.15\t609\t434585\t434585\t100\t6.09\n2944\t\t957988.80\t909\t324029\t324029\t100\t9.09\n5888\t\t1199207.69\t1138\t202845\t202845\t81.51\t13.96\n11776\t\t1200767.60\t1139\t101517\t101517\t63.93\t17.81\n23552\t\t1201197.22\t1140\t50794\t50794\t59.14\t19.27\n47104\t\t1201410.91\t1139\t25393\t25393\t57.15\t19.93\n61824\t\t1201609.48\t1140\t19350\t19350\t55.12\t20.68\n\nHW GSO offload:\n$pkt_size\tkB/s(sar)\tMB/s\tCalls/s\tMsg/s\tCPU\tMB2CPU\n========================================================================\n1472\t\t666626.15\t632\t450920\t450920\t100\t6.32\n2944\t\t1200831.63\t1139\t406093\t406093\t89.68\t12.70\n5888\t\t1201603.35\t1140\t203178\t203178\t56.38\t20.21\n11776\t\t1201597.29\t1140\t101588\t101588\t36.9\t30.89\n23552\t\t1201596.98\t1140\t50794\t50794\t24.23\t47.04\n47104\t\t1201491.67\t1139\t25394\t25394\t17.14\t66.45\n61824\t\t1201598.88\t1140\t19350\t19350\t15.11\t75.44\n\nJosh Hunt (3):\n igb: Add UDP segmentation offload support\n ixgbe: Add UDP segmentation offload support\n i40e: Add UDP segmentation offload support\n\n drivers/net/ethernet/intel/i40e/i40e_main.c | 1 +\n drivers/net/ethernet/intel/i40e/i40e_txrx.c | 12 +++++++++---\n drivers/net/ethernet/intel/igb/e1000_82575.h | 1 +\n drivers/net/ethernet/intel/igb/igb_main.c | 23 +++++++++++++++++------\n drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 24 ++++++++++++++++++------\n 5 files changed, 46 insertions(+), 15 deletions(-)" }