Re: [PATCH v4 3/5] PCI: Handle IORESOURCE_PCI_FIXED when sizing and assigning resources.

[Yinghai Lu]

On Fri, Oct 2, 2015 at 3:37 PM, David Daney <ddaney.cavm@xxxxxxxxx> wrote:
> From: David Daney <david.daney@xxxxxxxxxx>
>
> The new Enhanced Allocation (EA) capability support creates resources
> with the IORESOURCE_PCI_FIXED set.  This creates a couple of problems:
>
> 1) Since these resources cannot be relocated or resized, their
>    alignment is not really defined, and it is therefore not specified.
>    This causes a problem in pbus_size_mem() where resources with
>    unspecified alignment are disabled.
>
> 2) During resource assignment in pci_bus_assign_resources(),
>    IORESOURCE_PCI_FIXED resources are not given a parent.  This, in
>    turn, causes pci_enable_resources() to fail with a "not claimed"
>    error.
>
> So, in pbus_size_mem() skip IORESOURCE_PCI_FIXED resources, instead of
> disabling them.
>
> In __pci_bus_assign_resources(), for IORESOURCE_PCI_FIXED resources,
> try to request the resource from a parent bus.

Can you check if

https://patchwork.kernel.org/patch/7304971/
[v6,05/53] PCI: Don't release fixed resource for realloc

https://patchwork.kernel.org/patch/7304371/
[v6,06/53] PCI: Claim fixed resource during remove/rescan path

address the the problem that you met?

        Yinghai
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