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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 28 Jan 2019 15:45:39 -0000 Received: from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com [9.57.199.107]) by b01cxnp23034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x0SFjchU25428042 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 28 Jan 2019 15:45:39 GMT Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E1CD3124055; Mon, 28 Jan 2019 15:45:38 +0000 (GMT) Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6F5BB124054; Mon, 28 Jan 2019 15:45:38 +0000 (GMT) Received: from oc8380061452.ibm.com (unknown [9.53.179.224]) by b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP; Mon, 28 Jan 2019 15:45:38 +0000 (GMT) Subject: Re: [REPOST PATCH v08 0/5] powerpc/hotplug: Update affinity for migrated CPUs To: linuxppc-dev@lists.ozlabs.org References: <20180821153335.4955.44734.stgit@ltcalpine2-lp9.aus.stglabs.ibm.com> From: Michael Bringmann 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: Mon, 28 Jan 2019 09:45:37 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <20180821153335.4955.44734.stgit@ltcalpine2-lp9.aus.stglabs.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 19012815-2213-0000-0000-00000345C33A X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010493; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000277; SDB=6.01153036; UDB=6.00601106; IPR=6.00933398; MB=3.00025323; MTD=3.00000008; XFM=3.00000015; UTC=2019-01-28 15:45:41 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19012815-2214-0000-0000-00005D251A08 Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-01-28_09:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=1 spamscore=0 clxscore=1015 lowpriorityscore=1 mlxscore=0 impostorscore=0 mlxlogscore=728 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1901280119 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: Nathan Fontenot , Thomas Falcon , Tyrel Datwyler , John Allen Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 8/21/18 10:33 AM, mwb@linux.vnet.ibm.com wrote: > The migration of LPARs across Power systems affects many attributes > including that of the associativity of CPUs. The patches in this > set execute when a system is coming up fresh upon a migration target. > They are intended to, > > * Recognize changes to the associativity of CPUs recorded in internal > data structures when compared to the latest copies in the device tree. > * Generate calls to other code layers to reset the data structures > related to associativity of the CPUs. > * Re-register the 'changed' entities into the target system. > Re-registration of CPUs mostly entails acting as if they have been > newly hot-added into the target system. > > Signed-off-by: Michael Bringmann Retract this series in preference to [PATCH] powerpc/pseries: Perform full re-add of CPU for topology update post-migration Michael > > Michael Bringmann (5): > hotplug/cpu: Conditionally acquire/release DRC index > hotplug/cpu: Add operation queuing function > hotplug/cpu: Provide CPU readd operation > mobility/numa: Ensure numa update does not overlap > hotplug/pmt: Update topology after PMT > --- > Changes in patch: > -- Restructure and rearrange content of patches to co-locate > similar or related modifications > -- Rename pseries_update_drconf_cpu to pseries_update_processor > -- Simplify code to update CPU nodes during mobility checks. > Remove functions to generate extra HP_ELOG messages in favor > of direct function calls to dlpar_cpu_readd_by_index. > -- Revise code order in dlpar_cpu_readd_by_index() to present > more appropriate error codes from underlying layers of the > implementation. > -- Add hotplug device lock around all property updates > -- Add call to rebuild_sched_domains in case of changes > -- Various code cleanups and compaction > -- Rebase to 4.18 kernel > -- Change operation to run CPU readd after end of migration store. > -- Improve descriptive text > -- Cleanup patch reference to outdated function > -- Code cleanup a 'acquire_drc' check in dlpar_cpu_add. > -- Code cleanup a 'release_drc' check in dlpar_cpu_remove. > -- Add more information to patch descriptions. > -- More code cleanup > -- Rearrange call to rebuild_sched_domains to allow removal > of some locking code. > -- Michael W. Bringmann Linux Technology Center IBM Corporation Tie-Line 363-5196 External: (512) 286-5196 Cell: (512) 466-0650 mwb@linux.vnet.ibm.com