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GET /api/patches/7590/?format=api
{ "id": 7590, "url": "https://patches.dpdk.org/api/patches/7590/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/1444804479-14840-26-git-send-email-wenzhuo.lu@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": "<1444804479-14840-26-git-send-email-wenzhuo.lu@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1444804479-14840-26-git-send-email-wenzhuo.lu@intel.com", "date": "2015-10-14T06:34:30", "name": "[dpdk-dev,25/34] e1000/base: set correct value of beacon duration", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "01476a5fa852807304a44d83348690c33b288c9e", "submitter": { "id": 258, "url": "https://patches.dpdk.org/api/people/258/?format=api", "name": "Wenzhuo Lu", "email": "wenzhuo.lu@intel.com" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/1444804479-14840-26-git-send-email-wenzhuo.lu@intel.com/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/7590/comments/", "check": "pending", "checks": "https://patches.dpdk.org/api/patches/7590/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 6AFAF922C;\n\tWed, 14 Oct 2015 08:35:48 +0200 (CEST)", "from mga03.intel.com (mga03.intel.com [134.134.136.65])\n\tby dpdk.org (Postfix) with ESMTP id 7D45F9221\n\tfor <dev@dpdk.org>; Wed, 14 Oct 2015 08:35:45 +0200 (CEST)", "from fmsmga001.fm.intel.com ([10.253.24.23])\n\tby orsmga103.jf.intel.com with ESMTP; 13 Oct 2015 23:35:46 -0700", "from shvmail01.sh.intel.com ([10.239.29.42])\n\tby fmsmga001.fm.intel.com with ESMTP; 13 Oct 2015 23:35:44 -0700", "from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com\n\t[10.239.29.89])\n\tby shvmail01.sh.intel.com with ESMTP id t9E6ZfrH000358;\n\tWed, 14 Oct 2015 14:35:41 +0800", "from shecgisg004.sh.intel.com (localhost [127.0.0.1])\n\tby shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP\n\tid t9E6ZcvQ015052; Wed, 14 Oct 2015 14:35:40 +0800", "(from wenzhuol@localhost)\n\tby shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t9E6Zc1v015048; \n\tWed, 14 Oct 2015 14:35:38 +0800" ], "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.17,681,1437462000\"; d=\"scan'208\";a=\"810564026\"", "From": "Wenzhuo Lu <wenzhuo.lu@intel.com>", "To": "dev@dpdk.org", "Date": "Wed, 14 Oct 2015 14:34:30 +0800", "Message-Id": "<1444804479-14840-26-git-send-email-wenzhuo.lu@intel.com>", "X-Mailer": "git-send-email 1.7.4.1", "In-Reply-To": "<1444804479-14840-1-git-send-email-wenzhuo.lu@intel.com>", "References": "<1444804479-14840-1-git-send-email-wenzhuo.lu@intel.com>", "Subject": "[dpdk-dev] [PATCH 25/34] e1000/base: set correct value of beacon\n\tduration", "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": "Fix for I217 Packet Loss issue - The Management Engine sets the FEXTNVM4\nBeacon Duration incorrectly. This fix ensures that the correct value will\nalways be set. Correct value for this field is 8 usec.\n\nSigned-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>\n---\n drivers/net/e1000/base/e1000_ich8lan.c | 14 ++++++++++++++\n 1 file changed, 14 insertions(+)", "diff": "diff --git a/drivers/net/e1000/base/e1000_ich8lan.c b/drivers/net/e1000/base/e1000_ich8lan.c\nindex 56e20b4..7b7c631 100644\n--- a/drivers/net/e1000/base/e1000_ich8lan.c\n+++ b/drivers/net/e1000/base/e1000_ich8lan.c\n@@ -1483,6 +1483,20 @@ STATIC s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)\n \t\t\treturn ret_val;\n \t}\n \n+\t/* I217 Packet Loss issue:\n+\t * ensure that FEXTNVM4 Beacon Duration is set correctly\n+\t * on power up.\n+\t * Set the Beacon Duration for I217 to 8 usec\n+\t */\n+\tif (hw->mac.type == e1000_pch_lpt) {\n+\t\tu32 mac_reg;\n+\n+\t\tmac_reg = E1000_READ_REG(hw, E1000_FEXTNVM4);\n+\t\tmac_reg &= ~E1000_FEXTNVM4_BEACON_DURATION_MASK;\n+\t\tmac_reg |= E1000_FEXTNVM4_BEACON_DURATION_8USEC;\n+\t\tE1000_WRITE_REG(hw, E1000_FEXTNVM4, mac_reg);\n+\t}\n+\n \t/* Work-around I218 hang issue */\n \tif ((hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||\n \t (hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_V) ||\n", "prefixes": [ "dpdk-dev", "25/34" ] }