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Commit 443b40ba authored by Jon Derrick's avatar Jon Derrick Committed by Bjorn Helgaas
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x86/PCI: VMD: Add quirk for AER to ignore source ID 



VMD root ports change all source ids to the VMD device ID.  To find the
sender of the AER notification, we need to scan all child devices for the
AER sender, rather than relying on the source ID from the message.

Signed-off-by: default avatarJon Derrick <jonathan.derrick@intel.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 032c3d86

drivers/pci/quirks.c

+17 −0
Original line number Diff line number Diff line
@@ -4428,3 +4428,20 @@ static void quirk_intel_qat_vf_cap(struct pci_dev *pdev) 
	}

}

DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x443, quirk_intel_qat_vf_cap);



/*

 * VMD-enabled root ports will change the source ID for all messages

 * to the VMD device. Rather than doing device matching with the source

 * ID, the AER driver should traverse the child device tree, reading

 * AER registers to find the faulting device.

 */

static void quirk_no_aersid(struct pci_dev *pdev)

{

	/* VMD Domain */

	if (pdev->bus->sysdata && pci_domain_nr(pdev->bus) >= 0x10000)

		pdev->bus->bus_flags |= PCI_BUS_FLAGS_NO_AERSID;

}

DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2030, quirk_no_aersid);

DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2031, quirk_no_aersid);

DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2032, quirk_no_aersid);

DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2033, quirk_no_aersid);