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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 DD588C3A5A9 for ; Mon, 4 May 2020 08:55:05 +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 3FA8520735 for ; Mon, 4 May 2020 08:55:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3FA8520735 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 bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 49FxWV4mzWzDqdP for ; Mon, 4 May 2020 18:55:02 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=vaibhav@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (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 49FxTS0cZQzDqcw for ; Mon, 4 May 2020 18:53:15 +1000 (AEST) Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0448hGEr076213; Mon, 4 May 2020 04:53:08 -0400 Received: from ppma04fra.de.ibm.com (6a.4a.5195.ip4.static.sl-reverse.com [149.81.74.106]) by mx0a-001b2d01.pphosted.com with ESMTP id 30s4gtk65s-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 04 May 2020 04:53:08 -0400 Received: from pps.filterd (ppma04fra.de.ibm.com [127.0.0.1]) by ppma04fra.de.ibm.com (8.16.0.27/8.16.0.27) with SMTP id 0448osbo004705; Mon, 4 May 2020 08:53:05 GMT Received: from b06avi18626390.portsmouth.uk.ibm.com (b06avi18626390.portsmouth.uk.ibm.com [9.149.26.192]) by ppma04fra.de.ibm.com with ESMTP id 30s0g61rqc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 04 May 2020 08:53:05 +0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 0448psXc66191812 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 4 May 2020 08:51:54 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7157C11C04A; Mon, 4 May 2020 08:53:03 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8B80011C04C; Mon, 4 May 2020 08:53:00 +0000 (GMT) Received: from vajain21-in-ibm-com (unknown [9.85.89.222]) by d06av25.portsmouth.uk.ibm.com (Postfix) with SMTP; Mon, 4 May 2020 08:53:00 +0000 (GMT) Received: by vajain21-in-ibm-com (sSMTP sendmail emulation); Mon, 04 May 2020 14:22:58 +0530 From: Vaibhav Jain To: Michael Ellerman , linuxppc-dev@lists.ozlabs.org, linux-nvdimm@lists.01.org Subject: Re: [PATCH v6 1/4] powerpc: Document details on H_SCM_HEALTH hcall In-Reply-To: <87r1w5echa.fsf@mpe.ellerman.id.au> References: <20200420070711.223545-1-vaibhav@linux.ibm.com> <20200420070711.223545-2-vaibhav@linux.ibm.com> <87r1w5echa.fsf@mpe.ellerman.id.au> Date: Mon, 04 May 2020 14:22:58 +0530 Message-ID: <87bln4dqtx.fsf@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-05-04_04:2020-05-01, 2020-05-04 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 lowpriorityscore=0 mlxlogscore=999 clxscore=1015 bulkscore=0 mlxscore=0 priorityscore=1501 malwarescore=0 phishscore=0 spamscore=0 impostorscore=0 suspectscore=7 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2005040069 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Aneesh Kumar K . V" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Thanks for looking into this patch Mpe, Michael Ellerman writes: > Vaibhav Jain writes: > >> Add documentation to 'papr_hcalls.rst' describing the bitmap flags >> that are returned from H_SCM_HEALTH hcall as per the PAPR-SCM >> specification. >> >> Cc: Dan Williams >> Cc: Michael Ellerman >> Cc: "Aneesh Kumar K . V" >> Signed-off-by: Vaibhav Jain >> --- >> Changelog: >> >> v5..v6 >> * New patch in the series >> --- >> Documentation/powerpc/papr_hcalls.rst | 43 ++++++++++++++++++++++++--- >> 1 file changed, 39 insertions(+), 4 deletions(-) >> >> diff --git a/Documentation/powerpc/papr_hcalls.rst b/Documentation/powerpc/papr_hcalls.rst >> index 3493631a60f8..9a5ba5eaf323 100644 >> --- a/Documentation/powerpc/papr_hcalls.rst >> +++ b/Documentation/powerpc/papr_hcalls.rst >> @@ -220,13 +220,48 @@ from the LPAR memory. >> **H_SCM_HEALTH** >> >> | Input: drcIndex >> -| Out: *health-bitmap, health-bit-valid-bitmap* >> +| Out: *health-bitmap (r4), health-bit-valid-bitmap (r5)* >> | Return Value: *H_Success, H_Parameter, H_Hardware* >> >> Given a DRC Index return the info on predictive failure and overall health of >> -the NVDIMM. The asserted bits in the health-bitmap indicate a single predictive >> -failure and health-bit-valid-bitmap indicate which bits in health-bitmap are >> -valid. >> +the NVDIMM. The asserted bits in the health-bitmap indicate one or more states >> +(described in table below) of the NVDIMM and health-bit-valid-bitmap indicate >> +which bits in health-bitmap are valid. >> + >> +Health Bitmap Flags: >> + >> ++------+-----------------------------------------------------------------------+ >> +| Bit | Definition | >> ++======+=======================================================================+ >> +| 00 | SCM device is unable to persist memory contents. | >> +| | If the system is powered down, nothing will be saved. | >> ++------+-----------------------------------------------------------------------+ > > Are these correct bit numbers or backward IBM big endian bit numbers? > > ie. which bit is LSB? These bit numbers index to a 64-bit dword laid in IBM big endian format. So LSB would be at the located at a higher address. For example 0xC400000000000000 indicates bits 0, 1, and 5 are valid. > > cheers > _______________________________________________ > Linux-nvdimm mailing list -- linux-nvdimm@lists.01.org > To unsubscribe send an email to linux-nvdimm-leave@lists.01.org