:52 PM
To: Cheng, Collins
Cc: Alexander Duyck ; Bjorn Helgaas
; linux-...@vger.kernel.org; linux-kernel@vger.kernel.org;
Deucher, Alexander ; Zytaruk, Kelly
; Yinghai Lu
Subject: Re: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
incapable platform
On Fri, 26 May 2017 01:52:35
-Original Message-
> From: Cheng, Collins
> Sent: Wednesday, May 24, 2017 4:56 PM
> To: 'Alex Williamson'
> Cc: Alexander Duyck ; Bjorn Helgaas
> ; linux-...@vger.kernel.org;
> linux-kernel@vger.kernel.org; Deucher, Alexander ;
> Zytaruk, Kelly ; Yinghai Lu
&g
Sent: Wednesday, May 24, 2017 4:56 PM
To: 'Alex Williamson'
Cc: Alexander Duyck ; Bjorn Helgaas
; linux-...@vger.kernel.org; linux-kernel@vger.kernel.org;
Deucher, Alexander ; Zytaruk, Kelly
; Yinghai Lu
Subject: RE: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
incapable plat
On Wed, 24 May 2017 08:57:53 +
"Cheng, Collins" wrote:
> Hi Alex,
>
> How do you know "particular this system offers no 64-bit MMIO", from dmesg
> log?
>From this:
> [0.891319] pci_bus :00: root bus resource [io 0x-0x0cf7 window]
> [0.891321] pci_bus :00: root bus res
el.org; linux-kernel@vger.kernel.org;
Deucher, Alexander ; Zytaruk, Kelly
; Yinghai Lu
Subject: RE: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
incapable platform
Hi Alex W, Alex D,
I just tried two options, one is enable "Above 4G Decoding" in BIOS setup menu,
the oth
On Tue, 23 May 2017 03:41:21 +
"Cheng, Collins" wrote:
> Hi Alex,
>
> I owe you a dmesg log. Attachment are two log files. 1.txt is without
> "pci=earlydump", 2.txt is with "pci=earlydump". The platform is an ASUS
> Z170-A motherboard that doesn't support SR-IOV. The graphics card is AMD
ure if kernel has error handler if PCI resource
>> >> > allocation failed. In this case, kernel cannot allocate enough resource
>> >> > to PF. It should trigger some error handler to either just keep
>> >> > original BAR values set by system BIOS, or disable thi
> -Original Message-
> From: Cheng, Collins
> Sent: Thursday, May 11, 2017 10:51 PM
> To: Bjorn Helgaas; linux-...@vger.kernel.org; linux-kernel@vger.kernel.org
> Cc: Deucher, Alexander; Zytaruk, Kelly
> Subject: [PATCH] PCI: Make SR-IOV capable GPU working on the
t;
> >> I will send out dmesg log lspci info tomorrow. Thanks.
> >
> > Thanks,
> > Alex
> >
> >> -----Original Message-
> >> From: Alex Williamson [mailto:alex.william...@redhat.com]
> >> Sent: Friday, May 12, 2017 10:43 PM
> >> To: Che
as; linux-...@vger.kernel.org; linux-kernel@vger.kernel.org;
>>Deucher, Alexander; Yinghai Lu
>>Subject: RE: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
>>incapable platform
>>
>>Hi Kelly,
>>
>>This issue also happens in "not SR-IOV ca
rnel.org; linux-kernel@vger.kernel.org;
>Deucher, Alexander; Yinghai Lu
>Subject: RE: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
>incapable platform
>
>Hi Kelly,
>
>This issue also happens in "not SR-IOV capable" SBIOS. It seems some "not
>SR-IO
her, Alexander; Zytaruk, Kelly;
>Yinghai Lu
>Subject: RE: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
>incapable platform
>
>Hi Alex,
>
>Yes, I hope kernel can disable SR-IOV and related VF resource
>allocation if the system BIOS is not SR-IOV capable.
>
&
nder Duyck [mailto:alexander.du...@gmail.com]
>Sent: Friday, May 19, 2017 11:44 PM
>To: Alex Williamson
>Cc: Cheng, Collins ; Bjorn Helgaas
>; linux-...@vger.kernel.org; linux-
>ker...@vger.kernel.org; Deucher, Alexander ;
>Zytaruk, Kelly ; Yinghai Lu
>Subject: Re: [PATCH] PCI: Make
kernel.org; linux-kernel@vger.kernel.org;
Deucher, Alexander ; Zytaruk, Kelly
; Yinghai Lu
Subject: Re: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
incapable platform
On Mon, May 15, 2017 at 10:53 AM, Alex Williamson
wrote:
> On Mon, 15 May 2017 08:19:28 +
> "C
AR resource and user can use PF device.
>> >
>> > So the problem is that something bad happens when the kernel is trying
>> > to reallocate resources in order to fulfill the requirements of the
>> > VFs, leaving the PF resources incorrectly programmed? Why n
Sent: Friday, May 12, 2017 10:43 PM
> To: Cheng, Collins
> Cc: Bjorn Helgaas ; linux-...@vger.kernel.org;
> linux-kernel@vger.kernel.org; Deucher, Alexander
> ; Zytaruk, Kelly ;
> Yinghai Lu
> Subject: Re: [PATCH] PCI: Make SR-IOV capable GPU working on the
> SR-IOV inca
Cheng, Collins
> Cc: Bjorn Helgaas ; linux-...@vger.kernel.org;
> linux-kernel@vger.kernel.org; Deucher, Alexander ;
> Zytaruk, Kelly ; Yinghai Lu
> Subject: Re: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
> incapable platform
>
> On Fri, 12 May 2017 04
ernel@vger.kernel.org; Deucher, Alexander ;
Zytaruk, Kelly ; Yinghai Lu
Subject: Re: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
incapable platform
On Fri, 12 May 2017 04:51:43 +
"Cheng, Collins" wrote:
> Hi Williamson,
>
> I verified the patch is working for both AMD
2017 12:01 PM
> To: Cheng, Collins
> Cc: Bjorn Helgaas ; linux-...@vger.kernel.org;
> linux-kernel@vger.kernel.org; Deucher, Alexander ;
> Zytaruk, Kelly
> Subject: Re: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
> incapable platform
>
> On Fri, 12 May 2017 0
rn Helgaas ; linux-...@vger.kernel.org;
linux-kernel@vger.kernel.org; Deucher, Alexander ;
Zytaruk, Kelly
Subject: Re: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
incapable platform
On Fri, 12 May 2017 03:42:46 +
"Cheng, Collins" wrote:
> Hi Williamson,
>
> GPU
william...@redhat.com]
> Sent: Friday, May 12, 2017 11:21 AM
> To: Cheng, Collins
> Cc: Bjorn Helgaas ; linux-...@vger.kernel.org;
> linux-kernel@vger.kernel.org; Deucher, Alexander ;
> Zytaruk, Kelly
> Subject: Re: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IO
[PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
>incapable platform
>
>On Fri, 12 May 2017 02:50:32 +
>"Cheng, Collins" wrote:
>
>> Hi Helgaas,
>>
>> Some AMD GPUs have hardware support for graphics SR-IOV.
>> If the SR-IOV capable
kernel.org; Deucher, Alexander ;
Zytaruk, Kelly
Subject: Re: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
incapable platform
On Fri, 12 May 2017 02:50:32 +
"Cheng, Collins" wrote:
> Hi Helgaas,
>
> Some AMD GPUs have hardware support for graphics SR-IOV.
> If t
On Fri, 12 May 2017 02:50:32 +
"Cheng, Collins" wrote:
> Hi Helgaas,
>
> Some AMD GPUs have hardware support for graphics SR-IOV.
> If the SR-IOV capable GPU is plugged into the SR-IOV incapable
> platform. It would cause a problem on PCI resource allocation in
> current Linux kernel.
>
> T
Hi Helgaas,
Some AMD GPUs have hardware support for graphics SR-IOV.
If the SR-IOV capable GPU is plugged into the SR-IOV incapable
platform. It would cause a problem on PCI resource allocation in
current Linux kernel.
Therefore in order to allow the PF (Physical Function) device of
SR-IOV capabl
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