On Thu, May 04, 2006 at 01:01:57PM -0700, Rajesh Shah wrote:
> Yeah, that's also what some other drivers do. For example, PCI/PCIE
> bridges may support capabilities (like hotplug) that are controlled
> by separate drivers. These drivers don't do pci_disable_device()
> when they unload, since the bridge must continue to decode even
> when the other capability driver is gone.
>
> The problem is that most PCI bridges don't have any "extra"
> resources padded into the address ranges they pass down. It
> would be nice to be able to reuse address space released when
> a device is disabled (e.g. for future hot-add), if it's really
> no longer needed.
You could always reprogram the BARs. But I really wouldn't recommend
this; you'll just fragment the address space.
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