PCI: Add support for PCIe-to-PCI bridge DMA alias quirks

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Several PCIe-to-PCI bridges fail to provide a PCIe capability, causing us
to handle them as conventional PCI devices when they really use the
requester ID of the secondary bus.  We need to differentiate these from
PCIe-to-PCI bridges that actually use the conventional PCI ID when a PCIe
capability is not present, such as those found on the root complex of may
Intel chipsets.  Add a dev_flag bit to identify devices to be handled as
standard PCIe-to-PCI bridges.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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Alex Williamson 2014-05-28 14:57:02 -06:00 • committed by Bjorn Helgaas

parent cc346a4714

commit c8fe16e3f9

2 changed files with 10 additions and 2 deletions

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10

drivers/pci/search.c

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2

include/linux/pci.h

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