From patchwork Fri Sep 20 20:11:21 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Juliet Kim X-Patchwork-Id: 1165433 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.vnet.ibm.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46ZlWP0Fkzz9s00 for ; Sat, 21 Sep 2019 06:22:25 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728941AbfITUWY (ORCPT ); Fri, 20 Sep 2019 16:22:24 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:8820 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727273AbfITUWX (ORCPT ); Fri, 20 Sep 2019 16:22:23 -0400 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x8KKMGLR063981; Fri, 20 Sep 2019 16:22:19 -0400 Received: from ppma03dal.us.ibm.com (b.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.11]) by mx0a-001b2d01.pphosted.com with ESMTP id 2v55kwgdb5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 20 Sep 2019 16:22:19 -0400 Received: from pps.filterd (ppma03dal.us.ibm.com [127.0.0.1]) by ppma03dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id x8KKJdn0007926; Fri, 20 Sep 2019 20:22:17 GMT Received: from b03cxnp07028.gho.boulder.ibm.com (b03cxnp07028.gho.boulder.ibm.com [9.17.130.15]) by ppma03dal.us.ibm.com with ESMTP id 2v3vbuw2vj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 20 Sep 2019 20:22:17 +0000 Received: from b03ledav003.gho.boulder.ibm.com (b03ledav003.gho.boulder.ibm.com [9.17.130.234]) by b03cxnp07028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x8KKMG5S38994278 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 20 Sep 2019 20:22:16 GMT Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6EAF26A047; Fri, 20 Sep 2019 20:22:16 +0000 (GMT) Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 252E66A04D; Fri, 20 Sep 2019 20:22:16 +0000 (GMT) Received: from ltcfleet2-lp9.aus.stglabs.ibm.com (unknown [9.40.195.116]) by b03ledav003.gho.boulder.ibm.com (Postfix) with ESMTP; Fri, 20 Sep 2019 20:22:15 +0000 (GMT) From: Juliet Kim To: netdev@vger.kernel.org Cc: julietk@linux.vnet.ibm.com, tlfalcon@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v4 0/2] net/ibmvnic: serialization fixes Date: Fri, 20 Sep 2019 16:11:21 -0400 Message-Id: <20190920201123.18913-1-julietk@linux.vnet.ibm.com> X-Mailer: git-send-email 2.16.4 MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-09-20_07:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=889 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1909200167 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This series includes two fixes. The first improves reset code to allow linkwatch_event to proceed during reset. The second ensures that no more than one thread runs in reset at a time. v2: - Separate change param reset from do_reset() - Return IBMVNIC_OPEN_FAILED if __ibmvnic_open fails - Remove setting wait_for_reset to false from __ibmvnic_reset(), this is done in wait_for_reset() - Move the check for force_reset_recovery from patch 1 to patch 2 v3: - Restore reset’s successful return in open failure case v4: - Change resetting flag access to atomic Juliet Kim (2): net/ibmvnic: unlock rtnl_lock in reset so linkwatch_event can run net/ibmvnic: prevent more than one thread from running in reset drivers/net/ethernet/ibm/ibmvnic.c | 262 ++++++++++++++++++++++++++----------- drivers/net/ethernet/ibm/ibmvnic.h | 6 +- 2 files changed, 190 insertions(+), 78 deletions(-)