linux-kernel - Re: [PATCH 2/2] PCI: Only enable realloc auto when root bus has 64bit mmio

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Message-ID: <CAE9FiQWphiORhaVNNVGZXY6eYxLH2QYNbHcLdjzrBD98tMKz0Q@mail.gmail.com>
Date:	Wed, 17 Sep 2014 00:46:24 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Joseph Salisbury <joseph.salisbury@...onical.com>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH 2/2] PCI: Only enable realloc auto when root bus has 64bit mmio

On Tue, Sep 16, 2014 at 3:27 PM, Yinghai Lu <yinghai@...nel.org> wrote:
> On Tue, Sep 16, 2014 at 1:21 PM, Joseph Salisbury
> <joseph.salisbury@...onical.com> wrote:
>>
>> A new bug[0] was opened due to enabling PCI_REALLOC_ENABLE_AUTO, which
>> is similar to the original bug[1] we discussed.
>>
>> Just wondering if there have been any additional ideas on realloc since
>> this was last discussed?
>>
>> [0] http://pad.lv/1363313
>
> So the resource realloc do work as expected. but LSI firmware has some
> problem again?
>
> We may need to add command after the reset the bridge resource.

Can you try attached patch?

Thanks

Yinghai

View attachment "reset_lsi_pci_devices.patch" of type "text/x-patch" (939 bytes)