From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA38DC43387 for ; Fri, 4 Jan 2019 05:54:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A954A21871 for ; Fri, 4 Jan 2019 05:54:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="Uy7bcXt6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726801AbfADFyr (ORCPT ); Fri, 4 Jan 2019 00:54:47 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:50714 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726093AbfADFyq (ORCPT ); Fri, 4 Jan 2019 00:54:46 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id x045rXsQ157267; Fri, 4 Jan 2019 05:54:41 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=to : cc : subject : from : references : date : in-reply-to : message-id : mime-version : content-type; s=corp-2018-07-02; bh=o2lK/OvwVBOtTVbc2KTWkUsVg2IXA079LsYp/iSwQoo=; b=Uy7bcXt6eEC7dwTcRM/x1JVOP695ouy3UJv7f0HcAI1CJ8/F1nDO0EllYR8HAxd+5H5T 0nl5NmHj27Fc77O2LCueuFwwoECia9evH/MeSYdH6eJd17OrhcLB1lUN6PXRQrRP3D2Z e7Q9ZQoNV4KJ/q78AwiX8hoelTt404CUoae4cICdC0CWUgE3DXdj/+2d3oiNULzvxTO/ Z5vXGyveTKWp7pFLTgfJXcqg1l+VJG6z6vwRfTdgHZ1V2tEfv9l652122qLj8E+2Sm8h qXbq+8nW8UuZDNfzyeM3sN7zVbJqDDiulTj9wNN4CqGe8b4hrje+bMkfx4FdnjlTMeer 4A== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp2130.oracle.com with ESMTP id 2pp0bu2hew-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 04 Jan 2019 05:54:40 +0000 Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id x045sekA023983 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 4 Jan 2019 05:54:40 GMT Received: from abhmp0004.oracle.com (abhmp0004.oracle.com [141.146.116.10]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id x045sdoI024989; Fri, 4 Jan 2019 05:54:39 GMT Received: from ca-mkp.ca.oracle.com (/10.159.214.123) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 03 Jan 2019 21:54:39 -0800 To: John Garry Cc: , , , , Subject: Re: [PATCH 0/8] hisi_sas: debugfs support From: "Martin K. Petersen" Organization: Oracle Corporation References: <1545235006-151716-1-git-send-email-john.garry@huawei.com> Date: Fri, 04 Jan 2019 00:54:37 -0500 In-Reply-To: <1545235006-151716-1-git-send-email-john.garry@huawei.com> (John Garry's message of "Wed, 19 Dec 2018 23:56:38 +0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9125 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=499 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1901040052 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org John, > This patchset adds debugfs support for capturing driver state for > particular times when the HW has malfunctioned (and we must reset the HW). > > Every controller HW version has had bugs. These bugs have been very > painful to debug. One useful tool to debug these is being able to capture > and export HW registers and driver control structures at point of failure. > > This feature has been maintained out-of-tree for some time, so add it now. Applied to 4.22/scsi-queue, thanks! -- Martin K. Petersen Oracle Linux Engineering