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GET /api/patches/511024/?format=api
{ "id": 511024, "url": "http://patchwork.ozlabs.org/api/patches/511024/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/1440616461-110869-4-git-send-email-catherine.sullivan@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": "<1440616461-110869-4-git-send-email-catherine.sullivan@intel.com>", "list_archive_url": null, "date": "2015-08-26T19:14:09", "name": "[next,S11,03/15] i40e: stop VF rings", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "33e13309ce4ccb97ad35a9d83b16a28f16960aa4", "submitter": { "id": 13931, "url": "http://patchwork.ozlabs.org/api/people/13931/?format=api", "name": "Catherine Sullivan", "email": "catherine.sullivan@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/1440616461-110869-4-git-send-email-catherine.sullivan@intel.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/511024/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/511024/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 fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137])\n\tby ozlabs.org (Postfix) with ESMTP id AAE7F14012C\n\tfor <incoming@patchwork.ozlabs.org>;\n\tThu, 27 Aug 2015 05:13:50 +1000 (AEST)", "from localhost (localhost [127.0.0.1])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id 01752A2D13;\n\tWed, 26 Aug 2015 19:13:50 +0000 (UTC)", "from fraxinus.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id xm-XIHw4VUXZ; Wed, 26 Aug 2015 19:13:47 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id DE078A2B32;\n\tWed, 26 Aug 2015 19:13:47 +0000 (UTC)", "from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133])\n\tby ash.osuosl.org (Postfix) with ESMTP id 86ADA1C1550\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tWed, 26 Aug 2015 19:13:46 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id 824DA94F69\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tWed, 26 Aug 2015 19:13:46 +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 HBYXxEIyPwTs for <intel-wired-lan@lists.osuosl.org>;\n\tWed, 26 Aug 2015 19:13:45 +0000 (UTC)", "from mga14.intel.com (mga14.intel.com [192.55.52.115])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id 62F5094F37\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tWed, 26 Aug 2015 19:13:45 +0000 (UTC)", "from orsmga003.jf.intel.com ([10.7.209.27])\n\tby fmsmga103.fm.intel.com with ESMTP; 26 Aug 2015 12:13:44 -0700", "from catheri1-tigger.jf.intel.com ([134.134.176.92])\n\tby orsmga003.jf.intel.com with ESMTP; 26 Aug 2015 12:13:44 -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=\"5.17,418,1437462000\"; d=\"scan'208\";a=\"632786385\"", "From": "Catherine Sullivan <catherine.sullivan@intel.com>", "To": "intel-wired-lan@lists.osuosl.org", "Date": "Wed, 26 Aug 2015 15:14:09 -0400", "Message-Id": "<1440616461-110869-4-git-send-email-catherine.sullivan@intel.com>", "X-Mailer": "git-send-email 1.9.3", "In-Reply-To": "<1440616461-110869-1-git-send-email-catherine.sullivan@intel.com>", "References": "<1440616461-110869-1-git-send-email-catherine.sullivan@intel.com>", "Subject": "[Intel-wired-lan] [next PATCH S11 03/15] i40e: stop VF rings", "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": "From: Mitch Williams <mitch.a.williams@intel.com>\n\nExplicitly stop the rings belonging to each VF when disabling SR-IOV.\nEven though the VFs were gone, and the associated VSIs were removed, the\nrings were not stopped, and in some circumstances the hardware would\ncontinue to access the memory formerly used by the rings, causing memory\ncorruption or DMAR errors, both of which would lead to general malaise\nof the kernel.\n\nTo relieve this condition, explicitly stop all the rings associated with\neach VF before releasing its resources.\n\nSigned-off-by: Mitch Williams <mitch.a.williams@intel.com>\nChange-ID: I78c05d562c66e7b594b7e48d67860f49b3e5b6ec\n---\n drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 5 +++++\n 1 file changed, 5 insertions(+)", "diff": "diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c\nindex f60cd43..63fd6b7 100644\n--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c\n+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c\n@@ -872,6 +872,11 @@ void i40e_free_vfs(struct i40e_pf *pf)\n \t\t\ti40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],\n \t\t\t\t\t false);\n \n+\tfor (i = 0; i < pf->num_alloc_vfs; i++)\n+\t\tif (test_bit(I40E_VF_STAT_INIT, &pf->vf[i].vf_states))\n+\t\t\ti40e_vsi_control_rings(pf->vsi[pf->vf[i].lan_vsi_idx],\n+\t\t\t\t\t false);\n+\n \t/* Disable IOV before freeing resources. This lets any VF drivers\n \t * running in the host get themselves cleaned up before we yank\n \t * the carpet out from underneath their feet.\n", "prefixes": [ "next", "S11", "03/15" ] }