Re: [PATCH 0/7] PCI: Solve two bridge window sizing issues

Ilpo Järvinen
2024-03-05T15:37:58Z

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On Fri, 22 Dec 2023, Ilpo Järvinen wrote:

> Hi all,
>
> Here's a series that contains two fixes to PCI bridge window sizing
> algorithm. Together, they should enable remove & rescan cycle to work
> for a PCI bus that has PCI devices with optional resources and/or
> disparity in BAR sizes.
>
> For the second fix, I chose to expose find_empty_resource_slot() from
> kernel/resource.c because it should increase accuracy of the cannot-fit
> decision (currently that function is called find_resource()). In order
> to do that sensibly, a few improvements seemed in order to make its
> interface and name of the function sane before exposing it. Thus, the
> few extra patches on resource side.

Hi Bjorn,

Can you consider applying this series or do you have some comments on it?

I'm a bit unsure these days if my emails even reach you successfully as I
tend to often receive complaints from Gmail that it has blocked the emails
I send with git send-email detecting them as "unsolicited mail".

--
i.

> Unfortunately I don't have a reason to suspect these would help with
> the issues related to the currently ongoing resource regression
> thread [1].
>
> [1] https://lore.kernel.org/linux-pci/ZXpaNCLiDM+Kv38H@marvin.atrad.com.au/
>
> Ilpo Järvinen (7):
> PCI: Fix resource double counting on remove & rescan
> resource: Rename find_resource() to find_empty_resource_slot()
> resource: Document find_empty_resource_slot() and resource_constraint
> resource: Use typedef for alignf callback
> resource: Handle simple alignment inside __find_empty_resource_slot()
> resource: Export find_empty_resource_slot()
> PCI: Relax bridge window tail sizing rules