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GET /api/patches/479504/?format=api
{ "id": 479504, "url": "http://patchwork.ozlabs.org/api/patches/479504/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/0b084820b85c25826686f51a078c5b95fe2dd696.1433253642.git.yanirx.lubetkin@intel.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": "<0b084820b85c25826686f51a078c5b95fe2dd696.1433253642.git.yanirx.lubetkin@intel.com>", "list_archive_url": null, "date": "2015-06-02T14:05:47", "name": "[v2,4/5] e1000e: fix unit hang during loopback test", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "64d7cb35fca3b617164d5f5b155528890f7f1f7e", "submitter": { "id": 66154, "url": "http://patchwork.ozlabs.org/api/people/66154/?format=api", "name": "Yanir Lubetkin", "email": "yanirx.lubetkin@intel.com" }, "delegate": { "id": 68, "url": "http://patchwork.ozlabs.org/api/users/68/?format=api", "username": "jtkirshe", "first_name": "Jeff", "last_name": "Kirsher", "email": "jeffrey.t.kirsher@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/0b084820b85c25826686f51a078c5b95fe2dd696.1433253642.git.yanirx.lubetkin@intel.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/479504/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/479504/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<intel-wired-lan-bounces@lists.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" ], "Received": [ "from hemlock.osuosl.org (hemlock.osuosl.org [140.211.166.133])\n\tby ozlabs.org (Postfix) with ESMTP id 19AA11412E3\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 3 Jun 2015 00:07:06 +1000 (AEST)", "from localhost (localhost [127.0.0.1])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id 607AC951C5;\n\tTue, 2 Jun 2015 14:07:05 +0000 (UTC)", "from hemlock.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id aDqOCDBV8rIo; Tue, 2 Jun 2015 14:07:01 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id E27238A54C;\n\tTue, 2 Jun 2015 14:07:01 +0000 (UTC)", "from whitealder.osuosl.org (whitealder.osuosl.org\n\t[140.211.166.138])\n\tby ash.osuosl.org (Postfix) with ESMTP id 705321C0505\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tTue, 2 Jun 2015 14:07:00 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby whitealder.osuosl.org (Postfix) with ESMTP id 69DA89218C\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tTue, 2 Jun 2015 14:07:00 +0000 (UTC)", "from whitealder.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id z1-hYtIDBGdA for <intel-wired-lan@lists.osuosl.org>;\n\tTue, 2 Jun 2015 14:06:56 +0000 (UTC)", "from mga01.intel.com (mga01.intel.com [192.55.52.88])\n\tby whitealder.osuosl.org (Postfix) with ESMTP id 1A4AB92190\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tTue, 2 Jun 2015 14:06:56 +0000 (UTC)", "from orsmga003.jf.intel.com ([10.7.209.27])\n\tby fmsmga101.fm.intel.com with ESMTP; 02 Jun 2015 07:06:37 -0700", "from unknown (HELO ccdpc064.localdomain.com) ([143.185.160.80])\n\tby orsmga003.jf.intel.com with ESMTP; 02 Jun 2015 07:06:35 -0700" ], "X-Virus-Scanned": [ "amavisd-new at osuosl.org", "amavisd-new at osuosl.org" ], "X-Greylist": "domain auto-whitelisted by SQLgrey-1.7.6", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.13,540,1427785200\"; d=\"scan'208\";a=\"580661781\"", "From": "Yanir Lubetkin <yanirx.lubetkin@intel.com>", "To": "intel-wired-lan@lists.osuosl.org", "Date": "Tue, 2 Jun 2015 17:05:47 +0300", "Message-Id": "<0b084820b85c25826686f51a078c5b95fe2dd696.1433253642.git.yanirx.lubetkin@intel.com>", "X-Mailer": "git-send-email 2.1.0", "In-Reply-To": "<5c0f5ad24e5ae3adfede0279b6fdfea4312e32da.1433253642.git.yanirx.lubetkin@intel.com>", "References": "<5c0f5ad24e5ae3adfede0279b6fdfea4312e32da.1433253642.git.yanirx.lubetkin@intel.com>", "Subject": "[Intel-wired-lan] [PATCH v2 4/5] e1000e: fix unit hang during\n\tloopback test", "X-BeenThere": "intel-wired-lan@lists.osuosl.org", "X-Mailman-Version": "2.1.18-1", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n\t<intel-wired-lan.lists.osuosl.org>", "List-Unsubscribe": "<http://lists.osuosl.org/mailman/options/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@lists.osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@lists.osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@lists.osuosl.org?subject=help>", "List-Subscribe": "<http://lists.osuosl.org/mailman/listinfo/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@lists.osuosl.org?subject=subscribe>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "intel-wired-lan-bounces@lists.osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@lists.osuosl.org>" }, "content": "system would hang during execution of \"ethtool -t <NIC>\" for the same\nreason that required flushing the descriptor rings. this fix disables\nMULR for the loopback test to avoid the hang state.\n\nSigned-off-by: Yanir Lubetkin <yanirx.lubetkin@intel.com>\n---\n drivers/net/ethernet/intel/e1000e/ethtool.c | 27 ++++++++++++++++++++++++---\n 1 file changed, 24 insertions(+), 3 deletions(-)", "diff": "diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c\nindex 11f486e..51b7806 100644\n--- a/drivers/net/ethernet/intel/e1000e/ethtool.c\n+++ b/drivers/net/ethernet/intel/e1000e/ethtool.c\n@@ -1516,8 +1516,19 @@ static int e1000_set_es2lan_mac_loopback(struct e1000_adapter *adapter)\n static int e1000_setup_loopback_test(struct e1000_adapter *adapter)\n {\n \tstruct e1000_hw *hw = &adapter->hw;\n-\tu32 rctl;\n-\n+\tu32 rctl, fext_nvm11, tarc0;\n+ \n+\tif (hw->mac.type == e1000_pch_spt) {\n+\t\tfext_nvm11 = er32(FEXTNVM11);\n+\t\tfext_nvm11 |= E1000_FEXTNVM11_DISABLE_MULR_FIX;\n+\t\tew32(FEXTNVM11, fext_nvm11);\n+\t\ttarc0 = er32(TARC(0));\n+\t\t/* clear bits 28 & 29 (control of MULR concurrent requests) */\n+\t\ttarc0 &= 0xcfffffff;\n+\t\t/* set bit 29 (value of MULR requests is now 2) */\n+\t\ttarc0 |= 0x20000000;\n+\t\tew32(TARC(0), tarc0);\n+\t}\n \tif (hw->phy.media_type == e1000_media_type_fiber ||\n \t hw->phy.media_type == e1000_media_type_internal_serdes) {\n \t\tswitch (hw->mac.type) {\n@@ -1542,7 +1553,7 @@ static int e1000_setup_loopback_test(struct e1000_adapter *adapter)\n static void e1000_loopback_cleanup(struct e1000_adapter *adapter)\n {\n \tstruct e1000_hw *hw = &adapter->hw;\n-\tu32 rctl;\n+\tu32 rctl, fext_nvm11, tarc0;\n \tu16 phy_reg;\n \n \trctl = er32(RCTL);\n@@ -1550,6 +1561,16 @@ static void e1000_loopback_cleanup(struct e1000_adapter *adapter)\n \tew32(RCTL, rctl);\n \n \tswitch (hw->mac.type) {\n+\tcase e1000_pch_spt:\n+\t\tfext_nvm11 = er32(FEXTNVM11);\n+\t\tfext_nvm11 &= ~E1000_FEXTNVM11_DISABLE_MULR_FIX;\n+\t\tew32(FEXTNVM11, fext_nvm11);\n+\t\ttarc0 = er32(TARC(0));\n+\t\t/* clear bits 28 & 29 (control of MULR concurrent requests) */\n+\t\t/* set bit 29 (value of MULR requests is now 0) */\n+\t\ttarc0 &= 0xcfffffff;\n+\t\tew32(TARC(0), tarc0);\n+\t\t/* fall through */\n \tcase e1000_80003es2lan:\n \t\tif (hw->phy.media_type == e1000_media_type_fiber ||\n \t\t hw->phy.media_type == e1000_media_type_internal_serdes) {\n", "prefixes": [ "v2", "4/5" ] }