Documentation/arch/s390/pci.rst | 151 +++++++++++++++++++++++++++------------- arch/s390/include/asm/pci.h | 4 ++ arch/s390/pci/pci_sysfs.c | 20 ++++++ drivers/pci/slot.c | 13 +++- 4 files changed, 140 insertions(+), 48 deletions(-)
Hi all,
Add a mechanism for architecture specific attributes on
PCI slots in order to add the user-defined ID (UID) as an s390 specific
PCI slot attribute. First though improve some issues with the s390 specific
documentation of PCI sysfs attributes noticed during development.
Also note, I considered adding the UID as a generic slot index attribute
analogous to the PCI device index attribute (SMBIOS index / s390 UID)
but decided against it as this seems rather s390 specific and having
it named UID makes things easier for users and aligns with the existing
separate uid device attribute.
Thanks,
Niklas
v7->v8:
- Fix wrong uid_is_unique on firmware file, it's actually "uid_checking"
(Gerd)
- Link to v7: https://lore.kernel.org/r/20260407-uid_slot-v7-0-e50f7976124e@linux.ibm.com
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
---
---
---
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Niklas Schnelle (2):
docs: s390/pci: Improve and update PCI documentation
PCI: s390: Expose the UID as an arch specific PCI slot attribute
Documentation/arch/s390/pci.rst | 151 +++++++++++++++++++++++++++-------------
arch/s390/include/asm/pci.h | 4 ++
arch/s390/pci/pci_sysfs.c | 20 ++++++
drivers/pci/slot.c | 13 +++-
4 files changed, 140 insertions(+), 48 deletions(-)
---
base-commit: 591cd656a1bf5ea94a222af5ef2ee76df029c1d2
change-id: 20250923-uid_slot-e3559cf5ca30
Best regards,
--
Niklas Schnelle
On Tue, Apr 07, 2026 at 03:24:44PM +0200, Niklas Schnelle wrote: > Add a mechanism for architecture specific attributes on > PCI slots in order to add the user-defined ID (UID) as an s390 specific > PCI slot attribute. First though improve some issues with the s390 specific > documentation of PCI sysfs attributes noticed during development. > Niklas Schnelle (2): > docs: s390/pci: Improve and update PCI documentation > PCI: s390: Expose the UID as an arch specific PCI slot attribute > > Documentation/arch/s390/pci.rst | 151 +++++++++++++++++++++++++++------------- > arch/s390/include/asm/pci.h | 4 ++ > arch/s390/pci/pci_sysfs.c | 20 ++++++ > drivers/pci/slot.c | 13 +++- > 4 files changed, 140 insertions(+), 48 deletions(-) Applied to s390 tree, thank you!
On Tue, Apr 07, 2026 at 03:24:44PM +0200, Niklas Schnelle wrote: > Add a mechanism for architecture specific attributes on > PCI slots in order to add the user-defined ID (UID) as an s390 specific > PCI slot attribute. First though improve some issues with the s390 specific > documentation of PCI sysfs attributes noticed during development. > Niklas Schnelle (2): > docs: s390/pci: Improve and update PCI documentation > PCI: s390: Expose the UID as an arch specific PCI slot attribute > > Documentation/arch/s390/pci.rst | 151 +++++++++++++++++++++++++++------------- > arch/s390/include/asm/pci.h | 4 ++ > arch/s390/pci/pci_sysfs.c | 20 ++++++ > drivers/pci/slot.c | 13 +++- > 4 files changed, 140 insertions(+), 48 deletions(-) Bjorn, would you like to take this through the PCI tree? I think Niklas phrased the subject with that in mind. Otherwise, I can take it through the s390 tree. If so, could you give me your Acked-by?
On Wed, Apr 08, 2026 at 02:18:18PM +0200, Vasily Gorbik wrote: > On Tue, Apr 07, 2026 at 03:24:44PM +0200, Niklas Schnelle wrote: > > Add a mechanism for architecture specific attributes on > > PCI slots in order to add the user-defined ID (UID) as an s390 specific > > PCI slot attribute. First though improve some issues with the s390 specific > > documentation of PCI sysfs attributes noticed during development. > > > Niklas Schnelle (2): > > docs: s390/pci: Improve and update PCI documentation > > PCI: s390: Expose the UID as an arch specific PCI slot attribute > > > > Documentation/arch/s390/pci.rst | 151 +++++++++++++++++++++++++++------------- > > arch/s390/include/asm/pci.h | 4 ++ > > arch/s390/pci/pci_sysfs.c | 20 ++++++ > > drivers/pci/slot.c | 13 +++- > > 4 files changed, 140 insertions(+), 48 deletions(-) > > Bjorn, would you like to take this through the PCI tree? I think Niklas > phrased the subject with that in mind. > > Otherwise, I can take it through the s390 tree. If so, could you give > me your Acked-by? I did ack it, but I guess it was a previous version: https://lore.kernel.org/all/20260407193205.GA247806@bhelgaas It'd be great if you merged it via s390. The interesting parts are really in arch/s390.
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