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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 1AE47C0650E for ; Wed, 3 Jul 2019 15:10:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EB0BC218A0 for ; Wed, 3 Jul 2019 15:10:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726966AbfGCPKC (ORCPT ); Wed, 3 Jul 2019 11:10:02 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:42644 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726574AbfGCPKC (ORCPT ); Wed, 3 Jul 2019 11:10:02 -0400 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x63F1PRc133395 for ; Wed, 3 Jul 2019 11:10:00 -0400 Received: from e06smtp02.uk.ibm.com (e06smtp02.uk.ibm.com [195.75.94.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 2tgxn10ag5-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 03 Jul 2019 11:10:00 -0400 Received: from localhost by e06smtp02.uk.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) Wed, 3 Jul 2019 16:09:56 +0100 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06avi18878370.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x63F9sFN16187652 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 3 Jul 2019 15:09:54 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9307B11C04C; Wed, 3 Jul 2019 15:09:54 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4AC6411C04A; Wed, 3 Jul 2019 15:09:54 +0000 (GMT) Received: from localhost (unknown [9.152.212.151]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Wed, 3 Jul 2019 15:09:54 +0000 (GMT) Date: Wed, 3 Jul 2019 17:09:53 +0200 From: Vasily Gorbik To: Cornelia Huck Cc: Sebastian Ott , Peter Oberparleiter , Halil Pasic , Alex Williamson , Heiko Carstens , Christian Borntraeger , linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] s390/cio: introduce driver_override on the css bus References: <20190613110815.17251-1-cohuck@redhat.com> <20190624091740.1d9c6c1d.cohuck@redhat.com> <20190703165506.53d3911c.cohuck@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20190703165506.53d3911c.cohuck@redhat.com> X-TM-AS-GCONF: 00 x-cbid: 19070315-0008-0000-0000-000002F97B99 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19070315-0009-0000-0000-00002266CA70 Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-07-03_04:,, 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=908 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1907030183 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 03, 2019 at 04:55:06PM +0200, Cornelia Huck wrote: > On Mon, 24 Jun 2019 09:17:40 +0200 > Cornelia Huck wrote: > > > On Fri, 21 Jun 2019 18:19:36 +0200 (CEST) > > Sebastian Ott wrote: > > > > > On Thu, 13 Jun 2019, Cornelia Huck wrote: > > > > Sometimes, we want to control which of the matching drivers > > > > binds to a subchannel device (e.g. for subchannels we want to > > > > handle via vfio-ccw). > > > > > > > > For pci devices, a mechanism to do so has been introduced in > > > > 782a985d7af2 ("PCI: Introduce new device binding path using > > > > pci_dev.driver_override"). It makes sense to introduce the > > > > driver_override attribute for subchannel devices as well, so > > > > that we can easily extend the 'driverctl' tool (which makes > > > > use of the driver_override attribute for pci). > > > > > > > > Note that unlike pci we still require a driver override to > > > > match the subchannel type; matching more than one subchannel > > > > type is probably not useful anyway. > > > > > > > > Signed-off-by: Cornelia Huck > > > > > > Reviewed-by: Sebastian Ott > > > > > > Should I take that via our git tree or do you have other patches depending > > > on this one? > > > > > > > No, this patch is stand-alone; everything else is happening in user > > space, so taking it via your tree would be great. Thanks! > > Friendly ping (I don't see it on s390/features yet; or is this going > via some other path?) > It is there now. Just waited until latest ci results to push the branch. Sorry for delay.