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GET /api/patches/46589/?format=api
{ "id": 46589, "url": "https://patches.dpdk.org/api/patches/46589/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/1539255843-63090-1-git-send-email-jia.guo@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": "<1539255843-63090-1-git-send-email-jia.guo@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1539255843-63090-1-git-send-email-jia.guo@intel.com", "date": "2018-10-11T11:04:03", "name": "doc: add known PHY link up issue for i40e", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "a3ae8ab968eb1d56387ebd4b702d3147195738f9", "submitter": { "id": 507, "url": "https://patches.dpdk.org/api/people/507/?format=api", "name": "Guo, Jia", "email": "jia.guo@intel.com" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/1539255843-63090-1-git-send-email-jia.guo@intel.com/mbox/", "series": [ { "id": 1829, "url": "https://patches.dpdk.org/api/series/1829/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=1829", "date": "2018-10-11T11:04:03", "name": "doc: add known PHY link up issue for i40e", "version": 1, "mbox": "https://patches.dpdk.org/series/1829/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/46589/comments/", "check": "success", "checks": "https://patches.dpdk.org/api/patches/46589/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 [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id D039F1B4F6;\n\tThu, 11 Oct 2018 13:00:48 +0200 (CEST)", "from mga09.intel.com (mga09.intel.com [134.134.136.24])\n\tby dpdk.org (Postfix) with ESMTP id 810471B4E7\n\tfor <dev@dpdk.org>; Thu, 11 Oct 2018 13:00:47 +0200 (CEST)", "from fmsmga002.fm.intel.com ([10.253.24.26])\n\tby orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t11 Oct 2018 04:00:46 -0700", "from jeffguo-s2600wt2.sh.intel.com (HELO localhost.localdomain)\n\t([10.67.110.10])\n\tby fmsmga002.fm.intel.com with ESMTP; 11 Oct 2018 04:00:45 -0700" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.54,368,1534834800\"; d=\"scan'208\";a=\"94279623\"", "From": "Jeff Guo <jia.guo@intel.com>", "To": "qi.z.zhang@intel.com,\n\tbeilei.xing@intel.com", "Cc": "jingjing.wu@intel.com, dev@dpdk.org, jia.guo@intel.com,\n\thelin.zhang@intel.com", "Date": "Thu, 11 Oct 2018 19:04:03 +0800", "Message-Id": "<1539255843-63090-1-git-send-email-jia.guo@intel.com>", "X-Mailer": "git-send-email 2.7.4", "Subject": "[dpdk-dev] [PATCH] doc: add known PHY link up issue for i40e", "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": "When application stop i40e nics and quit itself, if i40e nics be rebinded\nfrom pmd to kernel driver, sometimes PHY can not be link up again any more.\n\nSigned-off-by: Jeff Guo <jia.guo@intel.com>\n---\n doc/guides/rel_notes/known_issues.rst | 27 +++++++++++++++++++++++++++\n 1 file changed, 27 insertions(+)", "diff": "diff --git a/doc/guides/rel_notes/known_issues.rst b/doc/guides/rel_notes/known_issues.rst\nindex 95e4ce6..3378bb7 100644\n--- a/doc/guides/rel_notes/known_issues.rst\n+++ b/doc/guides/rel_notes/known_issues.rst\n@@ -759,3 +759,30 @@ Netvsc driver and application restart\n \n **Driver/Module**:\n ``uio_hv_generic`` module.\n+\n+\n+PHY link up failed when rebind i40e nics to kernel driver\n+---------------------------------------------------------\n+\n+**Description**:\n+ When application stop i40e nics and quit itself, if i40e nics be rebinded\n+ from pmd to kernel driver, sometimes PHY can not be link up again any more.\n+\n+**Implication**:\n+ when DPDK application quit and invoke the function ``i40e_dev_stop``, I40e\n+ pmd will set PHY to be link down. After these unexpected configure which not\n+ come from kernel driver, it will encounter link configure failure by using\n+ kernel driver config tools ``ifconfig``. It is a known PHY link configure\n+ synchronous issue in i40e kernel driver. The fix has been addressed in 2.7.4\n+ rc version. So if the i40e kernel driver is < 2.7.4 and before the fix be\n+ backported into the privous versions, use these kernel drivers will perhaps\n+ have this issue.\n+\n+**Resolution/Workaround**:\n+ If it does not help by re-insmod kernel driver, please reboot system.\n+\n+**Affected E0nvironment/Platform**:\n+ All.\n+\n+**Driver/Module**:\n+ Poll Mode Driver (PMD).\n", "prefixes": [] }