{"id":2220545,"url":"http://patchwork.ozlabs.org/api/1.1/covers/2220545/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/cover/20260407-uid_slot-v8-0-15ae4409d2ce@linux.ibm.com/","project":{"id":28,"url":"http://patchwork.ozlabs.org/api/1.1/projects/28/?format=json","name":"Linux PCI development","link_name":"linux-pci","list_id":"linux-pci.vger.kernel.org","list_email":"linux-pci@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<20260407-uid_slot-v8-0-15ae4409d2ce@linux.ibm.com>","date":"2026-04-07T13:24:44","name":"[v8,0/2] PCI: s390: Expose the UID as an arch specific PCI slot attribute","submitter":{"id":78856,"url":"http://patchwork.ozlabs.org/api/1.1/people/78856/?format=json","name":"Niklas Schnelle","email":"schnelle@linux.ibm.com"},"mbox":"http://patchwork.ozlabs.org/project/linux-pci/cover/20260407-uid_slot-v8-0-15ae4409d2ce@linux.ibm.com/mbox/","series":[{"id":498984,"url":"http://patchwork.ozlabs.org/api/1.1/series/498984/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/list/?series=498984","date":"2026-04-07T13:24:45","name":"PCI: s390: Expose the UID as an arch specific PCI slot attribute","version":8,"mbox":"http://patchwork.ozlabs.org/series/498984/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2220545/comments/","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=qcouDLMp;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; 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d=ibm.com; h=cc\n\t:content-transfer-encoding:content-type:date:from:message-id\n\t:mime-version:subject:to; s=pp1; bh=5wGjoFUFgA8QutERY6Ui4UVpunBj\n\tgnp8KWmPJRuc/bo=; b=qcouDLMpW64H0m4HmW/qKORsXlXRZ4G8hyGgvuQCqKwu\n\tMUKfZSJOYjtZ//drIH7XjG7+mvABgY2RPbeV8mSLIEnhftubgWf+2s9O9atNVig5\n\tYRd7p2PNsHKbvh4CneZMOEgWAS/WWGDCmGWZdpQSUJOK2Ebn5Y/BAAfHjeRfnF9d\n\t15+5Kuo0pDCaTOXTOStX3rLzQOEBDRVZG8rQj7ESezc7bRXI/9CZ+AbGVrjappPU\n\tEEHwr1I+Ib4oBFLpUyspFEwv2gjTq+sdo1U2oSq7x+CbxQkSz2H8OmNWbL9y/yx4\n\tgNLOXPms3OLtfWtp/dgZu4PVpHqEJb9LPYQkDF9OFg==","From":"Niklas Schnelle ","Subject":"[PATCH v8 0/2] PCI: s390: Expose the UID as an arch specific PCI\n slot attribute","Date":"Tue, 07 Apr 2026 15:24:44 +0200","Message-Id":"<20260407-uid_slot-v8-0-15ae4409d2ce@linux.ibm.com>","Precedence":"bulk","X-Mailing-List":"linux-pci@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","X-B4-Tracking":"v=1; b=H4sIAJwF1WkC/23Q22oDIRAG4FcJXtcwHkbXXvU9Sinqjo2Q7JbdZ\n EkJ++51Qw8SvBFG/P5/8MZmmjLN7Hl3YxMtec7jUIbuacfiwQ8fxHNfZiZBIjip+CX37/NxPHN\n SiC4mjF4BK88/J0r5eo96fSvzIc/ncfq6Jy9iu22ELIILrizK6G1MnVcvxzxcrvscTvs4nrbcH\n 6QfEDhPoJPuItoHtLUv8q9RAHQVlgVTkjKWw1otWlhVWGCFVcFaq851DqMIoYX1P5bCVlgXvP0\n ZBXTBG9fC+IsNaBAVxm1tq0CZaHVIpoVNjWWFDQfeI3nwQvd9aDbbGtdr24IJIVlnjZCaHvG6r\n t+ArArLRwIAAA==","X-Change-ID":"20250923-uid_slot-e3559cf5ca30","To":"Bjorn Helgaas , Jonathan Corbet ,\n Lukas Wunner , Shuah Khan ","Cc":"Farhan Ali ,\n Alexander Gordeev ,\n Christian Borntraeger ,\n Gerald Schaefer ,\n Gerd Bayer , Heiko Carstens ,\n Julian Ruess ,\n Matthew Rosato ,\n Peter Oberparleiter ,\n Ramesh Errabolu ,\n Sven Schnelle ,\n Vasily Gorbik ,\n linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,\n linux-pci@vger.kernel.org, linux-s390@vger.kernel.org,\n Niklas Schnelle ,\n Randy Dunlap ","X-Mailer":"b4 0.14.2","X-Developer-Signature":"v=1; a=openpgp-sha256; l=1464;\n i=schnelle@linux.ibm.com; h=from:subject:message-id;\n bh=m4FqDPseXDGM6dBihqc9ldz6B3kp5D91Y2h5l4NZBY4=;\n b=owGbwMvMwCX2Wz534YHOJ2GMp9WSGDKvsi4IzJlepeJ+9N05zsLyvkcHw7qelXyWsjtz6l1D/\n KErrw64dpSyMIhxMciKKbIs6nL2W1cwxXRPUH8HzBxWJpAhDFycAjARzdOMDIeWnHhsbmH2+VIW\n Q//rG0b39u4xuZa29IhIuWzA+sZzf0IZ/jv41ddz8TrLH5z7++2a6dEsyt3/2WZ/983UrzpqJ/V\n oDhsA","X-Developer-Key":"i=schnelle@linux.ibm.com; a=openpgp;\n fpr=9DB000B2D2752030A5F72DDCAFE43F15E8C26090","X-TM-AS-GCONF":"00","X-Proofpoint-Reinject":"loops=2 maxloops=12","X-Proofpoint-ORIG-GUID":"VRHWFqJtJ3OH1933SDmFMitzz0H_syEU","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDA3MDEyNSBTYWx0ZWRfX/GscMEf13mE+\n HzMy26cqUN2Dc9xsXpirmScr3ydMk/pvMLxuQtxofMm2aPou2EXj6pgu9dVa1T6rY7doN0LrY0w\n T414zlbCdPlQKPpyLlIRBTrvVl9mQSCFldFn3N5k9aKLON3gBxRa1/bLF0Fh/y6IGq1nvdjLH6G\n TW/eXbhJKeS70McxaBZW9U4Vm1zX69RnbIlmf4utCT0HJe6uNXLC3lajYJGjTMjGxhL3UYhMqrA\n HYPtE1jtEiygYRV8FUPfWgq+BDr64Cn9W1aRNAzL00cet8U6Q55xM3URtmAhCAvfHngHo3YJhDr\n ezsIjh2nsb1x9bAycWNPHv5+RQuxxlCjYITSZhR6rXEvOiJv4taP/5jg0145aP+uMU3R18xsElf\n KWdoZUtPLBP1+TtWyqLpVpeGqCZqcIOc8rkUymG2xOjUgi3bjdcZPfnatGSCg/dcHeb0Wg5e2d9\n 3+D3wL2CpZTxbb5dXzQ==","X-Authority-Analysis":"v=2.4 cv=Cfw4Irrl c=1 sm=1 tr=0 ts=69d505a9 cx=c_pps\n a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17\n a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=VwQbUJbxAAAA:8\n a=VnNF1IyMAAAA:8 a=jVLf_0g3wJiVkyeFp14A:9 a=QEXdDO2ut3YA:10","X-Proofpoint-GUID":"MPwr6SlP2reP_7b4Q8ZuTJhVLBtnSnYP","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-07_02,2026-04-07_02,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n malwarescore=0 phishscore=0 clxscore=1015 adultscore=0 suspectscore=0\n priorityscore=1501 impostorscore=0 bulkscore=0 spamscore=0 lowpriorityscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604070125"},"content":"Hi all,\n\nAdd a mechanism for architecture specific attributes on\nPCI slots in order to add the user-defined ID (UID) as an s390 specific\nPCI slot attribute. First though improve some issues with the s390 specific\ndocumentation of PCI sysfs attributes noticed during development. \n\nAlso note, I considered adding the UID as a generic slot index attribute\nanalogous to the PCI device index attribute (SMBIOS index / s390 UID)\nbut decided against it as this seems rather s390 specific and having\nit named UID makes things easier for users and aligns with the existing\nseparate uid device attribute.\n\nThanks,\nNiklas\n\nv7->v8:\n- Fix wrong uid_is_unique on firmware file, it's actually \"uid_checking\"\n (Gerd)\n- Link to v7: https://lore.kernel.org/r/20260407-uid_slot-v7-0-e50f7976124e@linux.ibm.com\n\nSigned-off-by: Niklas Schnelle \n---\n---\n\n---\n\n---\nNiklas Schnelle (2):\n docs: s390/pci: Improve and update PCI documentation\n PCI: s390: Expose the UID as an arch specific PCI slot attribute\n\n Documentation/arch/s390/pci.rst | 151 +++++++++++++++++++++++++++-------------\n arch/s390/include/asm/pci.h | 4 ++\n arch/s390/pci/pci_sysfs.c | 20 ++++++\n drivers/pci/slot.c | 13 +++-\n 4 files changed, 140 insertions(+), 48 deletions(-)\n---\nbase-commit: 591cd656a1bf5ea94a222af5ef2ee76df029c1d2\nchange-id: 20250923-uid_slot-e3559cf5ca30\n\nBest regards,"}