PCI: MSI: Deal with devices lying about their masking capability
Status from this message: The following commit has been merged into the irq/urgent branch of tip:
Get series with b4
b4 am [email protected]Versions newest first
Patches in v1 Applied
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | PCI: MSI: Deal with devices lying about their MSI mask capabilitydrivers/ include/ | +5 | 0 replies | |
| 2/2 | PCI: Add MSI masking quirk for Nvidia ION AHCIdrivers/ | +6 | 0 replies |
Reviews trailers per patch
None of the 2 patches has a Reviewed-by or Acked-by of their own; the series has one for all of them.
| Patch | Rui Salvaterra | Thomas Gleixner |
|---|---|---|
| Series | R-b | |
| 1/2 | ||
| 2/2 | T-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH 0/2] PCI: MSI: Deal with devices lying about their masking capability
Rui reported[1] that his Nvidia ION system stopped working with 5.15, with the AHCI device failing to get any MSI. A rapid investigation revealed that although the device doesn't advertise MSI masking, it actually needs it. Quality hardware indeed.
Anyway, the couple of patches below are an attempt at dealing with the issue in a more or less generic way.
[1] https://lore.kernel.org/r/CALjTZvbzYfBuLB+H=fj2J+9=DxjQ2Uqcy0if_PvmJ-nU-qEgkg@mail.gmail.com
Marc Zyngier (2):
PCI: MSI: Deal with devices lying about their MSI mask capability
PCI: Add MSI masking quirk for Nvidia ION AHCI
drivers/pci/msi.c | 3 +++ drivers/pci/quirks.c | 6 ++++++ include/linux/pci.h | 2 ++ 3 files changed, 11 insertions(+)
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2.30.2