From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <SRS0=/+OH=4Q=lists.ozlabs.org=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@kernel.org>
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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,
	MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1
	autolearn=no 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 D193BC3F2D0
	for <linuxppc-dev@archiver.kernel.org>; Fri, 28 Feb 2020 06:16:02 +0000 (UTC)
Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2])
	(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by mail.kernel.org (Postfix) with ESMTPS id 3B6AE205C9
	for <linuxppc-dev@archiver.kernel.org>; Fri, 28 Feb 2020 06:16:02 +0000 (UTC)
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B6AE205C9
Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com
Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])
	by lists.ozlabs.org (Postfix) with ESMTP id 48TK6R3vkMzDr1j
	for <linuxppc-dev@archiver.kernel.org>; Fri, 28 Feb 2020 17:15:59 +1100 (AEDT)
Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized)
 smtp.mailfrom=linux.ibm.com (client-ip=148.163.158.5;
 helo=mx0a-001b2d01.pphosted.com; envelope-from=ajd@linux.ibm.com;
 receiver=<UNKNOWN>)
Authentication-Results: lists.ozlabs.org;
 dmarc=none (p=none dis=none) header.from=linux.ibm.com
Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com
 [148.163.158.5])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (No client certificate requested)
 by lists.ozlabs.org (Postfix) with ESMTPS id 48TK3B52BszDqtj
 for <linuxppc-dev@lists.ozlabs.org>; Fri, 28 Feb 2020 17:13:10 +1100 (AEDT)
Received: from pps.filterd (m0098417.ppops.net [127.0.0.1])
 by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id
 01S6ATFZ065734
 for <linuxppc-dev@lists.ozlabs.org>; Fri, 28 Feb 2020 01:13:08 -0500
Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97])
 by mx0a-001b2d01.pphosted.com with ESMTP id 2yepxa9xwb-1
 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT)
 for <linuxppc-dev@lists.ozlabs.org>; Fri, 28 Feb 2020 01:13:07 -0500
Received: from localhost
 by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only!
 Violators will be prosecuted
 for <linuxppc-dev@lists.ozlabs.org> from <ajd@linux.ibm.com>;
 Fri, 28 Feb 2020 06:13:05 -0000
Received: from b06cxnps4075.portsmouth.uk.ibm.com (9.149.109.197)
 by e06smtp01.uk.ibm.com (192.168.101.131) with IBM ESMTP SMTP Gateway:
 Authorized Use Only! Violators will be prosecuted; 
 (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256)
 Fri, 28 Feb 2020 06:12:56 -0000
Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com
 [9.149.105.62])
 by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id
 01S6CteC40304740
 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK);
 Fri, 28 Feb 2020 06:12:56 GMT
Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1])
 by IMSVA (Postfix) with ESMTP id E084DAE053;
 Fri, 28 Feb 2020 06:12:55 +0000 (GMT)
Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1])
 by IMSVA (Postfix) with ESMTP id 89E4BAE051;
 Fri, 28 Feb 2020 06:12:55 +0000 (GMT)
Received: from ozlabs.au.ibm.com (unknown [9.192.253.14])
 by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP;
 Fri, 28 Feb 2020 06:12:55 +0000 (GMT)
Received: from [10.61.2.125] (haven.au.ibm.com [9.192.254.114])
 (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits))
 (No client certificate requested)
 by ozlabs.au.ibm.com (Postfix) with ESMTPSA id 025AAA01F5;
 Fri, 28 Feb 2020 17:12:50 +1100 (AEDT)
Subject: Re: [PATCH v3 21/27] powerpc/powernv/pmem: Add an IOCTL to request
 controller health & perf data
To: "Alastair D'Silva" <alastair@au1.ibm.com>, alastair@d-silva.org
References: <20200221032720.33893-1-alastair@au1.ibm.com>
 <20200221032720.33893-22-alastair@au1.ibm.com>
From: Andrew Donnellan <ajd@linux.ibm.com>
Date: Fri, 28 Feb 2020 17:12:53 +1100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
 Thunderbird/68.5.0
MIME-Version: 1.0
In-Reply-To: <20200221032720.33893-22-alastair@au1.ibm.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
X-TM-AS-GCONF: 00
x-cbid: 20022806-4275-0000-0000-000003A63B3C
X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused
x-cbparentid: 20022806-4276-0000-0000-000038BAB55A
Message-Id: <fdc5faec-d03d-3cba-4a9c-add7e522ad13@linux.ibm.com>
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572
 definitions=2020-02-28_01:2020-02-26,
 2020-02-28 signatures=0
X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0
 mlxscore=0 priorityscore=1501
 mlxlogscore=675 spamscore=0 clxscore=1015 impostorscore=0 malwarescore=0
 suspectscore=0 phishscore=0 adultscore=0 bulkscore=0 lowpriorityscore=0
 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001
 definitions=main-2002280054
X-BeenThere: linuxppc-dev@lists.ozlabs.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org>
List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>
List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev/>
List-Post: <mailto:linuxppc-dev@lists.ozlabs.org>
List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>
List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>,
 <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>,
 Alexey Kardashevskiy <aik@ozlabs.ru>,
 Masahiro Yamada <yamada.masahiro@socionext.com>,
 Oliver O'Halloran <oohall@gmail.com>,
 Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
 Ira Weiny <ira.weiny@intel.com>, Thomas Gleixner <tglx@linutronix.de>,
 Rob Herring <robh@kernel.org>, Dave Jiang <dave.jiang@intel.com>,
 linux-nvdimm@lists.01.org, "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>,
 Krzysztof Kozlowski <krzk@kernel.org>,
 Anju T Sudhakar <anju@linux.vnet.ibm.com>,
 Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>, Arnd Bergmann <arnd@arndb.de>,
 Greg Kurz <groug@kaod.org>, Nicholas Piggin <npiggin@gmail.com>,
 =?UTF-8?Q?C=c3=a9dric_Le_Goater?= <clg@kaod.org>,
 Dan Williams <dan.j.williams@intel.com>, Hari Bathini <hbathini@linux.ibm.com>,
 linux-mm@kvack.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 linux-kernel@vger.kernel.org, Vishal Verma <vishal.l.verma@intel.com>,
 Frederic Barrat <fbarrat@linux.ibm.com>, Paul Mackerras <paulus@samba.org>,
 Andrew Morton <akpm@linux-foundation.org>, linuxppc-dev@lists.ozlabs.org,
 "David S. Miller" <davem@davemloft.net>
Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Sender: "Linuxppc-dev"
 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

On 21/2/20 2:27 pm, Alastair D'Silva wrote:
> From: Alastair D'Silva <alastair@d-silva.org>
> 
> When health & performance data is requested from the controller,
> it responds with an error log containing the requested information.
> 
> This patch allows the request to me issued via an IOCTL.

A better explanation would be good - this IOCTL triggers a request to 
the controller to collect controller health/perf data, and the 
controller will later respond with an error log that can be picked up 
via the error log IOCTL that you've defined earlier.


-- 
Andrew Donnellan              OzLabs, ADL Canberra
ajd@linux.ibm.com             IBM Australia Limited