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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=9SUCXisxPEPCn/V6ZBbaiW9DjgU2\n\tNXGvJX7YbWMfJiI=; b=ejnshABduKvvo77h/mJ5dchtBGDYXQtaHCUpCGrv8DKR\n\tbV+fb5dwB4hkgPfj1+BWoeuGnRgLmGjg4WcLOrC1+Yx+II6kSUCmqXEAc/KIdSPy\n\tSWSE44nSw2qvb9eH2XYzJ0ug5i8kS6OtmM1+dKXuocD4vsZgOH+1spjRomfT+7DB\n\tphukDLQ1Pwr/sqVR1Q2Yz/Hrg6Dspn49k6aMPK+IWV0jIv3Qj7m4wGMEkM7l7bgN\n\taawnbWGQ2na3Ncfpu6RIOiieibYVIOPmnDo9bLAqor2xPKrFNl+d/6xMWcdgdMmB\n\tNhCoO0N4FgRQrmxsngMFLwUzlO87Cv5s1ek53Qk3PA==", "From": "Niklas Schnelle <schnelle@linux.ibm.com>", "Subject": "[PATCH v6 0/2] PCI: s390: Expose the UID as an arch specific PCI\n slot attribute", "Date": "Thu, 02 Apr 2026 22:34:57 +0200", "Message-Id": "<20260402-uid_slot-v6-0-d5ea0a14ddb9@linux.ibm.com>", "Precedence": "bulk", "X-Mailing-List": "linux-pci@vger.kernel.org", "List-Id": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "X-B4-Tracking": "v=1; b=H4sIAPHSzmkC/23Q22oDIRAG4FcJXtegjuOhV32PUooabYRkt6zJk\n hL23auhB1n2RvjF75/BOylxyrGQ592dTHHOJY9DDeppR8LRDR+R5kPNRDCBzAqg13x4L6fxQiM\n g2pAwOGCkPv+cYsq3R9XrW83HXC7j9PVonnm73SiZOeUUNIrgdEjGwcspD9fbPvvzPozn1vuD5\n Aox6yKTSZqAeoXa9Fn8TeSMmQ6LimMSItRDa8m3MHSYY4ehYinBWGMxcO+3sPzHgusOy4rbn0W\n P1jtltzD+YsUk4x3GtrYGBipo6ZNa42VZvgGkB4vzzQEAAA==", "X-Change-ID": "20250923-uid_slot-e3559cf5ca30", "To": "Bjorn Helgaas <bhelgaas@google.com>, Jonathan Corbet <corbet@lwn.net>,\n Lukas Wunner <lukas@wunner.de>, Shuah Khan <skhan@linuxfoundation.org>", "Cc": "Farhan Ali <alifm@linux.ibm.com>,\n Alexander Gordeev <agordeev@linux.ibm.com>,\n Christian Borntraeger <borntraeger@linux.ibm.com>,\n Gerald Schaefer <gerald.schaefer@linux.ibm.com>,\n Gerd Bayer <gbayer@linux.ibm.com>, Heiko Carstens <hca@linux.ibm.com>,\n Julian Ruess <julianr@linux.ibm.com>,\n Matthew Rosato <mjrosato@linux.ibm.com>,\n Peter Oberparleiter <oberpar@linux.ibm.com>,\n Ramesh Errabolu <ramesh@linux.ibm.com>,\n Sven Schnelle <svens@linux.ibm.com>,\n Vasily Gorbik <gor@linux.ibm.com>,\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 <schnelle@linux.ibm.com>", "X-Mailer": "b4 0.14.2", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=1434;\n i=schnelle@linux.ibm.com; h=from:subject:message-id;\n bh=uiAFIRr6mHjLIRE3EwNKKCdKUkxBuUHvFc7GADEyjRU=;\n b=owGbwMvMwCX2Wz534YHOJ2GMp9WSGDLPXfqxh+nydpZm1nuFT2bk7TU49KNNX1XqB9Oh/3sMX\n 8QqiE0R6yhlYRDjYpAVU2RZ1OXst65giumeoP4OmDmsTCBDGLg4BWAiC88xMmyIv/Z6vuUtPp9P\n /sErp64oyvko0Ts7eNWVo/lnbI7LZvIx/PfYFBp2qfxtT3xFqUPEuxcdN/lnvvspfHSRxnLuD9O\n 9b7MAAA==", "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-Spam-Details-Enc": "AW1haW4tMjYwNDAyMDE4MSBTYWx0ZWRfX8bxIb/FvA8NI\n EKWS8oyQvHSdXHtBvg0Ivq6Tnt6rOEqTL51unKzqDwLDTxyITpnMzz5U/hoLo8JXmIQKcV3EQXR\n yoR/fECN1R0fw341FtrPMiJcOX6OT7a7MmPSWDeNnyR6w4yuSy9CH4Iznlg2APiVwP3VC8NlIKt\n gWi26XOIfx9RKx9eequUIiKnDW0Brjpk9Inyoy6ac1qNRWp+cT5YWHjk8pfM20EfsgTA4OrKiaz\n fZT78jUEAtrmDPtAOTJuLPwVrcRkJCjiuT1At153YmE1a/Pw8m/JiswU6kyrVs+kLo10TlJhuCc\n r8sXlbF7T4gIO6EsfsVSwZjcRl3houAiqF3+CJ6Nnxjj4+zKQXQXBunc8jwXhERX1OakthGhAv6\n C8dotit7ilaSi6sUeQ6gORmjyyYNxHwsaKSSMM9AffBjk7/b0kmvCCmVlpbC9agQl7Tt/fWN6wm\n Ar9cFllADCh/46kOBEA==", "X-Authority-Analysis": "v=2.4 cv=QKZlhwLL c=1 sm=1 tr=0 ts=69ced300 cx=c_pps\n a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17\n a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VwQbUJbxAAAA:8\n a=VnNF1IyMAAAA:8 a=jVLf_0g3wJiVkyeFp14A:9 a=QEXdDO2ut3YA:10", "X-Proofpoint-GUID": "XXTUWyvnoYydPdW6Q0btKx8sy1L6u-z8", "X-Proofpoint-ORIG-GUID": "BJHz1Qp9KoJA_8sHBFxTKpxOIpD17jgX", "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=2026-04-02_03,2026-04-02_05,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n lowpriorityscore=0 phishscore=0 adultscore=0 impostorscore=0 clxscore=1015\n spamscore=0 bulkscore=0 priorityscore=1501 suspectscore=0 malwarescore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604020181" }, "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\nv5->v6:\n- Add documentation cleanup patch before adding new slot attribute\n- Link to v5: https://lore.kernel.org/r/20260401-uid_slot-v5-1-e73036c74bf6@linux.ibm.com\n\nSigned-off-by: Niklas Schnelle <schnelle@linux.ibm.com>\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 | 146 +++++++++++++++++++++++++++-------------\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, 137 insertions(+), 46 deletions(-)\n---\nbase-commit: 7aaa8047eafd0bd628065b15757d9b48c5f9c07d\nchange-id: 20250923-uid_slot-e3559cf5ca30\n\nBest regards," }