[{"id":1768441,"web_url":"http://patchwork.ozlabs.org/comment/1768441/","msgid":"<20170914111556.457796e0.cohuck@redhat.com>","list_archive_url":null,"date":"2017-09-14T09:15:56","subject":"Re: [Qemu-devel] [PATCH v2 0/4] add CCW indirect data access support","submitter":{"id":71914,"url":"http://patchwork.ozlabs.org/api/people/71914/","name":"Cornelia Huck","email":"cohuck@redhat.com"},"content":"On Wed, 13 Sep 2017 13:50:25 +0200\nHalil Pasic <pasic@linux.vnet.ibm.com> wrote:\n\n> Abstract\n> --------\n> \n> The objective of this series is introducing CCW IDA (indirect data\n> access) support to our virtual channel subsystem implementation. Briefly\n> CCW IDA can be thought of as a kind of a scatter gather support for a\n> single CCW. If certain flags are set, the cda is to be interpreted as an\n> address to a list which in turn holds further addresses designating the\n> actual data.  Thus the scheme which we are currently using for accessing\n> CCW payload does not work in general case. Currently there is no\n> immediate need for proper IDA handling (no use case), but since it IDA is\n> a non-optional part of the architecture, the only way towards AR\n> compliance is actually implementing IDA.\n> \n> Testing\n> -------\n> \n> On request the things meant for testing from v1 were factored out\n> into a separate series (requested by Connie). Please look for\n> the series  'tests for CCW IDA' (comming soon) or use the stuff\n> form v1.\n\nGenerally, looks good; currently testing it.\n\nWould not mind some R-bs :)","headers":{"Return-Path":"<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)","ext-mx02.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com","ext-mx02.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=cohuck@redhat.com"],"Received":["from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xtCb01qDlz9sPs\n\tfor <incoming@patchwork.ozlabs.org>;\n\tThu, 14 Sep 2017 19:16:44 +1000 (AEST)","from localhost ([::1]:46528 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1dsQGI-0000kk-Cx\n\tfor incoming@patchwork.ozlabs.org; Thu, 14 Sep 2017 05:16:42 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:36765)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <cohuck@redhat.com>) id 1dsQFk-0000fK-4Q\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 05:16:13 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <cohuck@redhat.com>) id 1dsQFe-00075v-0B\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 05:16:08 -0400","from mx1.redhat.com ([209.132.183.28]:49464)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <cohuck@redhat.com>) id 1dsQFd-00074i-RE\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 05:16:01 -0400","from smtp.corp.redhat.com\n\t(int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id EF4F880C0F;\n\tThu, 14 Sep 2017 09:16:00 +0000 (UTC)","from gondolin (ovpn-117-98.ams2.redhat.com [10.36.117.98])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id C15E377D64;\n\tThu, 14 Sep 2017 09:15:59 +0000 (UTC)"],"DMARC-Filter":"OpenDMARC Filter v1.3.2 mx1.redhat.com EF4F880C0F","Date":"Thu, 14 Sep 2017 11:15:56 +0200","From":"Cornelia Huck <cohuck@redhat.com>","To":"Halil Pasic <pasic@linux.vnet.ibm.com>","Message-ID":"<20170914111556.457796e0.cohuck@redhat.com>","In-Reply-To":"<20170913115029.47626-1-pasic@linux.vnet.ibm.com>","References":"<20170913115029.47626-1-pasic@linux.vnet.ibm.com>","Organization":"Red Hat GmbH","MIME-Version":"1.0","Content-Type":"text/plain; charset=US-ASCII","Content-Transfer-Encoding":"7bit","X-Scanned-By":"MIMEDefang 2.79 on 10.5.11.12","X-Greylist":"Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.26]);\n\tThu, 14 Sep 2017 09:16:01 +0000 (UTC)","X-detected-operating-system":"by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]\n\t[fuzzy]","X-Received-From":"209.132.183.28","Subject":"Re: [Qemu-devel] [PATCH v2 0/4] add CCW indirect data access support","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"<qemu-devel.nongnu.org>","List-Unsubscribe":"<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>","List-Archive":"<http://lists.nongnu.org/archive/html/qemu-devel/>","List-Post":"<mailto:qemu-devel@nongnu.org>","List-Help":"<mailto:qemu-devel-request@nongnu.org?subject=help>","List-Subscribe":"<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>","Cc":"Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>,\n\tPierre Morel <pmorel@linux.vnet.ibm.com>, qemu-devel@nongnu.org","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>"}},{"id":1768512,"web_url":"http://patchwork.ozlabs.org/comment/1768512/","msgid":"<8e6f5026-727c-89fc-a052-7142e011a381@linux.vnet.ibm.com>","list_archive_url":null,"date":"2017-09-14T11:02:51","subject":"Re: [Qemu-devel] [PATCH v2 0/4] add CCW indirect data access support","submitter":{"id":68297,"url":"http://patchwork.ozlabs.org/api/people/68297/","name":"Halil Pasic","email":"pasic@linux.vnet.ibm.com"},"content":"On 09/14/2017 11:15 AM, Cornelia Huck wrote:\n> On Wed, 13 Sep 2017 13:50:25 +0200\n> Halil Pasic <pasic@linux.vnet.ibm.com> wrote:\n> \n>> Abstract\n>> --------\n>>\n>> The objective of this series is introducing CCW IDA (indirect data\n>> access) support to our virtual channel subsystem implementation. Briefly\n>> CCW IDA can be thought of as a kind of a scatter gather support for a\n>> single CCW. If certain flags are set, the cda is to be interpreted as an\n>> address to a list which in turn holds further addresses designating the\n>> actual data.  Thus the scheme which we are currently using for accessing\n>> CCW payload does not work in general case. Currently there is no\n>> immediate need for proper IDA handling (no use case), but since it IDA is\n>> a non-optional part of the architecture, the only way towards AR\n>> compliance is actually implementing IDA.\n>>\n>> Testing\n>> -------\n>>\n>> On request the things meant for testing from v1 were factored out\n>> into a separate series (requested by Connie). Please look for\n>> the series  'tests for CCW IDA' (comming soon) or use the stuff\n>> form v1.\n> \n> Generally, looks good; currently testing it.\n> \n> Would not mind some R-bs :)\n> \n\nMany thanks for the quick review! Of course I consent to every\nchange you have proposed to make (before applying).\n\nAbout the stale comments I've just sent out a patch.\n\nAbout the r-b's I think the guys in cc are the most likely\ncandidates. Pierre should be back starting next week. Dong\nJia I haven't seen in a while, but I don't know about anything.\nOf course I would happy if somebody less expected joins in.\n\nThanks again!\n\nHalil","headers":{"Return-Path":"<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)","Received":["from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xtFyB5YKNz9s06\n\tfor <incoming@patchwork.ozlabs.org>;\n\tThu, 14 Sep 2017 21:03:29 +1000 (AEST)","from localhost ([::1]:46934 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1dsRvb-0003BG-6a\n\tfor incoming@patchwork.ozlabs.org; Thu, 14 Sep 2017 07:03:27 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:34943)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <pasic@linux.vnet.ibm.com>) id 1dsRvB-000382-V2\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 07:03:07 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <pasic@linux.vnet.ibm.com>) id 1dsRv8-0005HF-NS\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 07:03:01 -0400","from mx0b-001b2d01.pphosted.com ([148.163.158.5]:46958\n\thelo=mx0a-001b2d01.pphosted.com)\n\tby eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <pasic@linux.vnet.ibm.com>)\n\tid 1dsRv8-0005Gr-IQ\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 07:02:58 -0400","from pps.filterd (m0098417.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv8EAxkiM014881\n\tfor <qemu-devel@nongnu.org>; Thu, 14 Sep 2017 07:02:57 -0400","from e06smtp12.uk.ibm.com (e06smtp12.uk.ibm.com [195.75.94.108])\n\tby mx0a-001b2d01.pphosted.com with ESMTP id 2cynx3aabq-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <qemu-devel@nongnu.org>; Thu, 14 Sep 2017 07:02:57 -0400","from localhost\n\tby e06smtp12.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <qemu-devel@nongnu.org> from <pasic@linux.vnet.ibm.com>;\n\tThu, 14 Sep 2017 12:02:54 +0100","from b06cxnps4076.portsmouth.uk.ibm.com (9.149.109.198)\n\tby e06smtp12.uk.ibm.com (192.168.101.142) with IBM ESMTP SMTP\n\tGateway: Authorized Use Only! Violators will be prosecuted; \n\tThu, 14 Sep 2017 12:02:52 +0100","from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com\n\t[9.149.105.59])\n\tby b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with\n\tESMTP id v8EB2pa013893634; Thu, 14 Sep 2017 11:02:51 GMT","from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 72DC3A404D;\n\tThu, 14 Sep 2017 11:59:00 +0100 (BST)","from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 4C96CA4040;\n\tThu, 14 Sep 2017 11:59:00 +0100 (BST)","from oc3836556865.ibm.com (unknown [9.152.224.207])\n\tby d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP;\n\tThu, 14 Sep 2017 11:59:00 +0100 (BST)"],"To":"Cornelia Huck <cohuck@redhat.com>","References":"<20170913115029.47626-1-pasic@linux.vnet.ibm.com>\n\t<20170914111556.457796e0.cohuck@redhat.com>","From":"Halil Pasic <pasic@linux.vnet.ibm.com>","Date":"Thu, 14 Sep 2017 13:02:51 +0200","User-Agent":"Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101\n\tThunderbird/52.2.0","MIME-Version":"1.0","In-Reply-To":"<20170914111556.457796e0.cohuck@redhat.com>","Content-Type":"text/plain; charset=utf-8","Content-Language":"en-US","Content-Transfer-Encoding":"8bit","X-TM-AS-GCONF":"00","x-cbid":"17091411-0008-0000-0000-00000496EA71","X-IBM-AV-DETECTION":"SAVI=unused REMOTE=unused XFE=unused","x-cbparentid":"17091411-0009-0000-0000-00001E2809FD","Message-Id":"<8e6f5026-727c-89fc-a052-7142e011a381@linux.vnet.ibm.com>","X-Proofpoint-Virus-Version":"vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-09-14_03:, , signatures=0","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=0\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1709140165","X-detected-operating-system":"by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy]","X-Received-From":"148.163.158.5","Subject":"Re: [Qemu-devel] [PATCH v2 0/4] add CCW indirect data access support","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"<qemu-devel.nongnu.org>","List-Unsubscribe":"<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>","List-Archive":"<http://lists.nongnu.org/archive/html/qemu-devel/>","List-Post":"<mailto:qemu-devel@nongnu.org>","List-Help":"<mailto:qemu-devel-request@nongnu.org?subject=help>","List-Subscribe":"<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>","Cc":"Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>,\n\tPierre Morel <pmorel@linux.vnet.ibm.com>, qemu-devel@nongnu.org","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>"}},{"id":1768521,"web_url":"http://patchwork.ozlabs.org/comment/1768521/","msgid":"<20170914131957.0e929e57.cohuck@redhat.com>","list_archive_url":null,"date":"2017-09-14T11:19:57","subject":"Re: [Qemu-devel] [PATCH v2 0/4] add CCW indirect data access support","submitter":{"id":71914,"url":"http://patchwork.ozlabs.org/api/people/71914/","name":"Cornelia Huck","email":"cohuck@redhat.com"},"content":"On Thu, 14 Sep 2017 13:02:51 +0200\nHalil Pasic <pasic@linux.vnet.ibm.com> wrote:\n\n> About the r-b's I think the guys in cc are the most likely\n> candidates. Pierre should be back starting next week. Dong\n> Jia I haven't seen in a while, but I don't know about anything.\n\nLet's see what comes in, although I don't want to delay sending the\nnext s390x pull request for too long. Probably next week or so. I'd be\nhappy to record any tags prior to that.\n\n> Of course I would happy if somebody less expected joins in.\n\nSeconded :)","headers":{"Return-Path":"<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)","ext-mx04.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com","ext-mx04.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=cohuck@redhat.com"],"Received":["from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xtGL96MxDz9rvt\n\tfor <incoming@patchwork.ozlabs.org>;\n\tThu, 14 Sep 2017 21:20:49 +1000 (AEST)","from localhost ([::1]:46991 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1dsSCO-0005BJ-0I\n\tfor incoming@patchwork.ozlabs.org; Thu, 14 Sep 2017 07:20:48 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:43466)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <cohuck@redhat.com>) id 1dsSBj-00052G-JR\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 07:20:13 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <cohuck@redhat.com>) id 1dsSBf-0005Ax-R0\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 07:20:07 -0400","from mx1.redhat.com ([209.132.183.28]:60396)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <cohuck@redhat.com>) id 1dsSBf-0005A0-KW\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 07:20:03 -0400","from smtp.corp.redhat.com\n\t(int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id AA93985542;\n\tThu, 14 Sep 2017 11:20:02 +0000 (UTC)","from gondolin (ovpn-117-98.ams2.redhat.com [10.36.117.98])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 6DA496C94F;\n\tThu, 14 Sep 2017 11:20:01 +0000 (UTC)"],"DMARC-Filter":"OpenDMARC Filter v1.3.2 mx1.redhat.com AA93985542","Date":"Thu, 14 Sep 2017 13:19:57 +0200","From":"Cornelia Huck <cohuck@redhat.com>","To":"Halil Pasic <pasic@linux.vnet.ibm.com>","Message-ID":"<20170914131957.0e929e57.cohuck@redhat.com>","In-Reply-To":"<8e6f5026-727c-89fc-a052-7142e011a381@linux.vnet.ibm.com>","References":"<20170913115029.47626-1-pasic@linux.vnet.ibm.com>\n\t<20170914111556.457796e0.cohuck@redhat.com>\n\t<8e6f5026-727c-89fc-a052-7142e011a381@linux.vnet.ibm.com>","Organization":"Red Hat GmbH","MIME-Version":"1.0","Content-Type":"text/plain; charset=US-ASCII","Content-Transfer-Encoding":"7bit","X-Scanned-By":"MIMEDefang 2.79 on 10.5.11.14","X-Greylist":"Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.28]);\n\tThu, 14 Sep 2017 11:20:02 +0000 (UTC)","X-detected-operating-system":"by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]\n\t[fuzzy]","X-Received-From":"209.132.183.28","Subject":"Re: [Qemu-devel] [PATCH v2 0/4] add CCW indirect data access support","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"<qemu-devel.nongnu.org>","List-Unsubscribe":"<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>","List-Archive":"<http://lists.nongnu.org/archive/html/qemu-devel/>","List-Post":"<mailto:qemu-devel@nongnu.org>","List-Help":"<mailto:qemu-devel-request@nongnu.org?subject=help>","List-Subscribe":"<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>","Cc":"Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>,\n\tPierre Morel <pmorel@linux.vnet.ibm.com>, qemu-devel@nongnu.org","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>"}},{"id":1768628,"web_url":"http://patchwork.ozlabs.org/comment/1768628/","msgid":"<20170914161655.46d1c37f.cohuck@redhat.com>","list_archive_url":null,"date":"2017-09-14T14:16:55","subject":"Re: [Qemu-devel] [PATCH v2 0/4] add CCW indirect data access support","submitter":{"id":71914,"url":"http://patchwork.ozlabs.org/api/people/71914/","name":"Cornelia Huck","email":"cohuck@redhat.com"},"content":"On Wed, 13 Sep 2017 13:50:25 +0200\nHalil Pasic <pasic@linux.vnet.ibm.com> wrote:\n\n> Abstract\n> --------\n> \n> The objective of this series is introducing CCW IDA (indirect data\n> access) support to our virtual channel subsystem implementation. Briefly\n> CCW IDA can be thought of as a kind of a scatter gather support for a\n> single CCW. If certain flags are set, the cda is to be interpreted as an\n> address to a list which in turn holds further addresses designating the\n> actual data.  Thus the scheme which we are currently using for accessing\n> CCW payload does not work in general case. Currently there is no\n> immediate need for proper IDA handling (no use case), but since it IDA is\n> a non-optional part of the architecture, the only way towards AR\n> compliance is actually implementing IDA.\n\nThanks, applied.","headers":{"Return-Path":"<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=nongnu.org\n\t(client-ip=2001:4830:134:3::11; helo=lists.gnu.org;\n\tenvelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n\treceiver=<UNKNOWN>)","ext-mx06.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com","ext-mx06.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=cohuck@redhat.com"],"Received":["from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11])\n\t(using TLSv1 with cipher AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xtLGb2zQvz9s4s\n\tfor <incoming@patchwork.ozlabs.org>;\n\tFri, 15 Sep 2017 00:17:59 +1000 (AEST)","from localhost ([::1]:48061 helo=lists.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.71) (envelope-from\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>)\n\tid 1dsUxp-0006z2-Eb\n\tfor incoming@patchwork.ozlabs.org; Thu, 14 Sep 2017 10:17:57 -0400","from eggs.gnu.org ([2001:4830:134:3::10]:60928)\n\tby lists.gnu.org with esmtp (Exim 4.71)\n\t(envelope-from <cohuck@redhat.com>) id 1dsUwy-0006u1-Ts\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 10:17:10 -0400","from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)\n\t(envelope-from <cohuck@redhat.com>) id 1dsUwv-0001W4-Mt\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 10:17:04 -0400","from mx1.redhat.com ([209.132.183.28]:42303)\n\tby eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32)\n\t(Exim 4.71) (envelope-from <cohuck@redhat.com>) id 1dsUwv-0001Uk-HC\n\tfor qemu-devel@nongnu.org; Thu, 14 Sep 2017 10:17:01 -0400","from smtp.corp.redhat.com\n\t(int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id EE3F7356D7;\n\tThu, 14 Sep 2017 14:16:59 +0000 (UTC)","from gondolin (ovpn-204-195.brq.redhat.com [10.40.204.195])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 7D1E81822C;\n\tThu, 14 Sep 2017 14:16:58 +0000 (UTC)"],"DMARC-Filter":"OpenDMARC Filter v1.3.2 mx1.redhat.com EE3F7356D7","Date":"Thu, 14 Sep 2017 16:16:55 +0200","From":"Cornelia Huck <cohuck@redhat.com>","To":"Halil Pasic <pasic@linux.vnet.ibm.com>","Message-ID":"<20170914161655.46d1c37f.cohuck@redhat.com>","In-Reply-To":"<20170913115029.47626-1-pasic@linux.vnet.ibm.com>","References":"<20170913115029.47626-1-pasic@linux.vnet.ibm.com>","Organization":"Red Hat GmbH","MIME-Version":"1.0","Content-Type":"text/plain; charset=US-ASCII","Content-Transfer-Encoding":"7bit","X-Scanned-By":"MIMEDefang 2.79 on 10.5.11.13","X-Greylist":"Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.5.110.30]);\n\tThu, 14 Sep 2017 14:17:00 +0000 (UTC)","X-detected-operating-system":"by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic]\n\t[fuzzy]","X-Received-From":"209.132.183.28","Subject":"Re: [Qemu-devel] [PATCH v2 0/4] add CCW indirect data access support","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"<qemu-devel.nongnu.org>","List-Unsubscribe":"<https://lists.nongnu.org/mailman/options/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>","List-Archive":"<http://lists.nongnu.org/archive/html/qemu-devel/>","List-Post":"<mailto:qemu-devel@nongnu.org>","List-Help":"<mailto:qemu-devel-request@nongnu.org?subject=help>","List-Subscribe":"<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n\t<mailto:qemu-devel-request@nongnu.org?subject=subscribe>","Cc":"Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>,\n\tPierre Morel <pmorel@linux.vnet.ibm.com>, qemu-devel@nongnu.org","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"\"Qemu-devel\"\n\t<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>"}}]