From patchwork Tue Jan 29 17:04:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Bringmann X-Patchwork-Id: 1032907 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 43ptGC3flGz9sML for ; Wed, 30 Jan 2019 04:07:15 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.vnet.ibm.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 43ptGC24XHzDqNJ for ; Wed, 30 Jan 2019 04:07:15 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=none (mailfrom) smtp.mailfrom=linux.vnet.ibm.com (client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com; envelope-from=mwb@linux.vnet.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.vnet.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 43ptBs47cjzDqPj for ; Wed, 30 Jan 2019 04:04:21 +1100 (AEDT) Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x0TGwpwG047388 for ; Tue, 29 Jan 2019 12:04:19 -0500 Received: from e33.co.us.ibm.com (e33.co.us.ibm.com [32.97.110.151]) by mx0b-001b2d01.pphosted.com with ESMTP id 2qasgb5758-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 29 Jan 2019 12:04:18 -0500 Received: from localhost by e33.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 29 Jan 2019 17:04:14 -0000 Received: from b03ledav005.gho.boulder.ibm.com (b03ledav005.gho.boulder.ibm.com [9.17.130.236]) by b03cxnp08026.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x0TH4DBk21299390 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 29 Jan 2019 17:04:14 GMT Received: from b03ledav005.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DD6CDBE054; Tue, 29 Jan 2019 17:04:13 +0000 (GMT) Received: from b03ledav005.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 644B9BE051; Tue, 29 Jan 2019 17:04:13 +0000 (GMT) Received: from oc8380061452.ibm.com (unknown [9.53.179.224]) by b03ledav005.gho.boulder.ibm.com (Postfix) with ESMTP; Tue, 29 Jan 2019 17:04:13 +0000 (GMT) To: linuxppc-dev@lists.ozlabs.org In-Reply-To: <20190129165514.14612.16201.stgit@ltcalpine2-lp20.aus.stglabs.ibm.com> From: Michael Bringmann Subject: [REPOST PATCH v07 3/5] migration/memory: Add hotplug READD_MULTIPLE Openpgp: preference=signencrypt Autocrypt: addr=mwb@linux.vnet.ibm.com; prefer-encrypt=mutual; keydata= mQENBFcY7GcBCADzw3en+yzo9ASFGCfldVkIg95SAMPK0myXp2XJYET3zT45uBsX/uj9/2nA lBmXXeOSXnPfJ9V3vtiwcfATnWIsVt3tL6n1kqikzH9nXNxZT7MU/7gqzWZngMAWh/GJ9qyg DTOZdjsvdUNUWxtiLvBo7y+reA4HjlQhwhYxxvCpXBeRoF0qDWfQ8DkneemqINzDZPwSQ7zY t4F5iyN1I9GC5RNK8Y6jiKmm6bDkrrbtXPOtzXKs0J0FqWEIab/u3BDrRP3STDVPdXqViHua AjEzthQbGZm0VCxI4a7XjMi99g614/qDcXZCs00GLZ/VYIE8hB9C5Q+l66S60PLjRrxnABEB AAG0LU1pY2hhZWwgVy4gQnJpbmdtYW5uIDxtd2JAbGludXgudm5ldC5pYm0uY29tPokBOAQT AQIAIgUCVxjsZwIbAwYLCQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQSEdag3dpuTI0NAf8 CKYTDKQLgOSjVrU2L5rM4lXaJRmQV6oidD3vIhKSnWRvPq9C29ifRG6ri20prTHAlc0vycgm 41HHg0y2vsGgNXGTWC2ObemoZBI7mySXe/7Tq5mD/semGzOp0YWZ7teqrkiSR8Bw0p+LdE7K QmT7tpjjvuhrtQ3RRojUYcuy1nWUsc4D+2cxsnZslsx84FUKxPbLagDgZmgBhUw/sUi40s6S AkdViVCVS0WANddLIpG0cfdsV0kCae/XdjK3mRK6drFKv1z+QFjvOhc8QIkkxFD0da9w3tJj oqnqHFV5gLcHO6/wizPx/NV90y6RngeBORkQiRFWxTXS4Oj9GVI/UrkBDQRXGOxnAQgAmJ5Y ikTWrMWPfiveUacETyEhWVl7u8UhZcx3yy2te8O0ay7t9fYcZgIEfQPPVVus89acIXlG3wYL DDPvb21OprLxi+ZJ2a0S5we+LcSWN1jByxJlbWBq+/LcMtGAOhNLpysY1gD0Y4UW/eKS+TFZ 562qKC3k1dBvnV9JXCgeS1taYFxRdVAn+2DwK3nuyG/DDq/XgJ5BtmyC3MMx8CiW3POj+O+l 6SedIeAfZlZ7/xhijx82g93h07VavUQRwMZgZFsqmuxBxVGiav2HB+dNvs3PFB087Pvc9OHe qhajPWOP/gNLMmvBvknn1NToM9a8/E8rzcIZXoYs4RggRRYh6wARAQABiQEfBBgBAgAJBQJX GOxnAhsMAAoJEEhHWoN3abky+RUH/jE08/r5QzaNKYeVhu0uVbgXu5fsxqr2cAxhf+KuwT3T efhEP2alarxzUZdEh4MsG6c+X2NYLbD3cryiXxVx/7kSAJEFQJfA5P06g8NLR25Qpq9BLsN7 ++dxQ+CLKzSEb1X24hYAJZpOhS8ev3ii+M/XIo+olDBKuTaTgB6elrg3CaxUsVgLBJ+jbRkW yQe2S5f/Ja1ThDpSSLLWLiLK/z7+gaqwhnwjQ8Z8Y9D2itJQcj4itHilwImsqwLG7SxzC0NX IQ5KaAFYdRcOgwR8VhhkOIVd70ObSZU+E4pTET1WDz4o65xZ89yfose1No0+r5ht/xWOOrh8 53/hcWvxHVs= Organization: IBM Linux Technology Center Date: Tue, 29 Jan 2019 11:04:13 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 Content-Language: en-US X-TM-AS-GCONF: 00 x-cbid: 19012917-0036-0000-0000-00000A82AD10 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010499; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000277; SDB=6.01153538; UDB=6.00601408; IPR=6.00933904; MB=3.00025341; MTD=3.00000008; XFM=3.00000015; UTC=2019-01-29 17:04:15 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19012917-0037-0000-0000-00004A86A664 Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-01-29_13:, , 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=949 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1901290127 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: Thomas Falcon , Michael Bringmann , Juliet Kim , Tyrel Datwyler , Nathan Lynch Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" migration/memory: This patch adds a new pseries hotplug action for CPU and memory operations, PSERIES_HP_ELOG_ACTION_READD_MULTIPLE. This is a variant of the READD operation which performs the action upon multiple instances of the resource at one time. The operation is to be triggered by device-tree analysis of updates by RTAS events analyzed by 'migation_store' during post-migration processing. It will be used for memory updates, initially. Signed-off-by: Michael Bringmann --- Changes in v05: -- Provide dlpar_memory_readd_helper routine to compress some common code Changes in v04: -- Move init of 'lmb->internal_flags' in init_drmem_v2_lmbs to previous patch. -- Pull in implementation of dlpar_memory_readd_multiple() to go with operation flag. --- arch/powerpc/include/asm/rtas.h | 1 + arch/powerpc/platforms/pseries/hotplug-memory.c | 44 ++++++++++++++++++++--- 2 files changed, 39 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h index 0183e95..cc00451 100644 --- a/arch/powerpc/include/asm/rtas.h +++ b/arch/powerpc/include/asm/rtas.h @@ -333,6 +333,7 @@ struct pseries_hp_errorlog { #define PSERIES_HP_ELOG_ACTION_ADD 1 #define PSERIES_HP_ELOG_ACTION_REMOVE 2 #define PSERIES_HP_ELOG_ACTION_READD 3 +#define PSERIES_HP_ELOG_ACTION_READD_MULTIPLE 4 #define PSERIES_HP_ELOG_ID_DRC_NAME 1 #define PSERIES_HP_ELOG_ID_DRC_INDEX 2 diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c index 2b796da..9c76345 100644 --- a/arch/powerpc/platforms/pseries/hotplug-memory.c +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c @@ -507,6 +507,19 @@ static int dlpar_memory_remove_by_index(u32 drc_index) return rc; } +static int dlpar_memory_readd_helper(struct drmem_lmb *lmb) +{ + int rc; + + rc = dlpar_remove_lmb(lmb); + if (!rc) { + rc = dlpar_add_lmb(lmb); + if (rc) + dlpar_release_drc(lmb->drc_index); + } + return rc; +} + static int dlpar_memory_readd_by_index(u32 drc_index) { struct drmem_lmb *lmb; @@ -519,12 +532,7 @@ static int dlpar_memory_readd_by_index(u32 drc_index) for_each_drmem_lmb(lmb) { if (lmb->drc_index == drc_index) { lmb_found = 1; - rc = dlpar_remove_lmb(lmb); - if (!rc) { - rc = dlpar_add_lmb(lmb); - if (rc) - dlpar_release_drc(lmb->drc_index); - } + rc = dlpar_memory_readd_helper(lmb); break; } } @@ -541,6 +549,23 @@ static int dlpar_memory_readd_by_index(u32 drc_index) return rc; } +static int dlpar_memory_readd_multiple(void) +{ + struct drmem_lmb *lmb; + int rc; + + pr_info("Attempting to update multiple LMBs\n"); + + for_each_drmem_lmb(lmb) { + if (drmem_lmb_update(lmb)) { + rc = dlpar_memory_readd_helper(lmb); + drmem_remove_lmb_update(lmb); + } + } + + return rc; +} + static int dlpar_memory_remove_by_ic(u32 lmbs_to_remove, u32 drc_index) { struct drmem_lmb *lmb, *start_lmb, *end_lmb; @@ -641,6 +666,10 @@ static int dlpar_memory_readd_by_index(u32 drc_index) { return -EOPNOTSUPP; } +static int dlpar_memory_readd_multiple(void) +{ + return -EOPNOTSUPP; +} static int dlpar_memory_remove_by_ic(u32 lmbs_to_remove, u32 drc_index) { @@ -918,6 +947,9 @@ int dlpar_memory(struct pseries_hp_errorlog *hp_elog) drc_index = hp_elog->_drc_u.drc_index; rc = dlpar_memory_readd_by_index(drc_index); break; + case PSERIES_HP_ELOG_ACTION_READD_MULTIPLE: + rc = dlpar_memory_readd_multiple(); + break; default: pr_err("Invalid action (%d) specified\n", hp_elog->action); rc = -EINVAL;