From patchwork Tue Aug 4 17:37:54 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Himanshu Madhani X-Patchwork-Id: 6943491 Return-Path: X-Original-To: patchwork-linux-scsi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 3146A9F6E5 for ; Tue, 4 Aug 2015 18:24:07 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 66E2020531 for ; Tue, 4 Aug 2015 18:24:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 86C5920528 for ; Tue, 4 Aug 2015 18:24:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753994AbbHDSYD (ORCPT ); Tue, 4 Aug 2015 14:24:03 -0400 Received: from mx0b-0016ce01.pphosted.com ([67.231.156.153]:54044 "EHLO mx0b-0016ce01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752569AbbHDSXw (ORCPT ); Tue, 4 Aug 2015 14:23:52 -0400 Received: from pps.filterd (m0085408.ppops.net [127.0.0.1]) by mx0b-0016ce01.pphosted.com (8.15.0.59/8.15.0.59) with SMTP id t74IM9Nv021017; Tue, 4 Aug 2015 11:23:42 -0700 Received: from avcashub1.qlogic.com (avcashub2.qlogic.com [198.70.193.116]) by mx0b-0016ce01.pphosted.com with ESMTP id 1w2km6haxv-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Tue, 04 Aug 2015 11:23:42 -0700 Received: from dut6217.mv.qlogic.com (172.29.56.217) by qlc.com (10.1.4.191) with Microsoft SMTP Server id 14.3.235.1; Tue, 4 Aug 2015 11:23:41 -0700 Received: by dut6217.mv.qlogic.com (Postfix, from userid 0) id 049F25216E6; Tue, 4 Aug 2015 13:38:05 -0400 (EDT) From: Himanshu Madhani To: CC: , , , , Subject: [PATCH 04/14] qla2xxx: Pause risc before manipulating risc semaphore. Date: Tue, 4 Aug 2015 13:37:54 -0400 Message-ID: <1438709884-623-5-git-send-email-himanshu.madhani@qlogic.com> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1438709884-623-1-git-send-email-himanshu.madhani@qlogic.com> References: <1438709884-623-1-git-send-email-himanshu.madhani@qlogic.com> MIME-Version: 1.0 disclaimer: bypass X-Proofpoint-Virus-Version: vendor=nai engine=5700 definitions=7883 signatures=670619 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1506180000 definitions=main-1508040287 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Spam-Status: No, score=-7.0 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Joe Carnuccio Signed-off-by: Joe Carnuccio Signed-off-by: Himanshu Madhani --- drivers/scsi/qla2xxx/qla_init.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 6930966..5d04c8c 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1287,6 +1287,9 @@ qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha) vha->hw->pdev->subsystem_device != 0x0240) return; + WRT_REG_DWORD(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE); + udelay(100); + attempt: timeout_msec = TIMEOUT_SEMAPHORE; n = timeout_msec / delta_msec;