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| author |   Bjorn Helgaas <bhelgaas@google.com> | 2021-03-30 12:43:16 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2021-03-31 12:27:03 -0500 |
| commit | 1fd3dde5e270ad08f1406f921c9a2cda154fcea9 (patch) | |
| tree | 776f7c31efd8cc6d7b201461c3c718ef120e9994 /include/linux/pci.h | |
| parent | PCI: Release OF node in pci_scan_device()'s error path (diff) | |
| download | linux-dev-1fd3dde5e270ad08f1406f921c9a2cda154fcea9.tar.xz linux-dev-1fd3dde5e270ad08f1406f921c9a2cda154fcea9.zip | |
PCI: Add pci_disable_parity()
Add pci_disable_parity() to disable reporting of parity errors for a
device by clearing PCI_COMMAND_PARITY.
The device will still set PCI_STATUS_DETECTED_PARITY when it detects
a parity error or receives a Poisoned TLP, but it will not set
PCI_STATUS_PARITY, which means it will not assert PERR#
(conventional PCI) or report Poisoned TLPs (PCIe).
Based-on: https://lore.kernel.org/linux-arm-kernel/d375987c-ea4f-dd98-4ef8-99b2fbfe7c33@gmail.com/
Based-on-patch-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/20210330174318.1289680-2-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 86c799c97b77..4eaa773115da 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1201,6 +1201,7 @@ int __must_check pci_set_mwi(struct pci_dev *dev); int __must_check pcim_set_mwi(struct pci_dev *dev); int pci_try_set_mwi(struct pci_dev *dev); void pci_clear_mwi(struct pci_dev *dev); +void pci_disable_parity(struct pci_dev *dev); void pci_intx(struct pci_dev *dev, int enable); bool pci_check_and_mask_intx(struct pci_dev *dev); bool pci_check_and_unmask_intx(struct pci_dev *dev); |