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SubjectRe: AMD 8131 and MSI quirk
On Tue, Feb 14, 2006 at 10:27:52AM -0800, Roland Dreier wrote:
> Michael, now I'm not sure whether this will work for devices like the
> Mellanox PCI-X HCA, where the HCA device sits below a virtual PCI
> bridge. In that case we need to propagate the NO_MSI flag from the
> 8131 bridge to the Tavor bridge, right? And it has to work for
> systems like Sun V40Z where the PCI-X slots are hot-swappable (so the
> HCA and its bridge could be added later).

Michael's patch does this:

@@ -347,6 +347,7 @@ pci_alloc_child_bus(struct pci_bus *pare
child->parent = parent;
child->ops = parent->ops;
child->sysdata = parent->sysdata;
+ child->bus_flags = parent->bus_flags;
child->bridge = get_device(&bridge->dev);

child->class_dev.class = &pcibus_class;

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