Bind amdgpu to SR-IOV virtual function

Bind amdgpu to SR-IOV virtual function

[Dennis Schridde]

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Hello!

I investigating the virtualisation abilities of current AMD FirePro hardware; 
specifically how to securely pass a share of a GPU to one application (a Rkt/
Docker container). I already read vfio.txt and pci-iov-howto.txt, but they do 
not answer my questions. I was unable to find documentation on the process 
online, either.

1. How do I create VFs from a AMD FirePro PF? I saw an example using VMWare 
ESXi tools, where it is possible to specify RAM size and time-share, but I 
have not seen how that translates to modifying /sys/bus/pci/..., which is the 
method recommended for SR-IOV devices in pci-iov-howto.txt.

2. After having created VFs, is it possible to bind these to the host's amdgpu 
driver, so that I get multiple /dev/dri/card* device nodes?

3. Will passing these /dev/dri/card* device nodes into a Rkt/Docker container 
be enough for the AMD Radeon Pro OpenGL runtime to be able to use that card?

Best regards,
Dennis Schridde
-- 
Heidelberg University Computing Centre
Service division: Future IT - Research & Education

Tel. +49 6221 54-4519, Fax +49 6221 54-5581
dennis.schridde-axtXthT+lymYbFdUjOg7S7NAH6kLmebB@public.gmane.org

http://www.urz.uni-heidelberg.de/

Ruprecht-Karls-Universität Heidelberg
Universitätsrechenzentrum
Im Neuenheimer Feld 293, 69120 Heidelberg, Germany

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Re: Bind amdgpu to SR-IOV virtual function

[Alex Deucher]

On Thu, Aug 25, 2016 at 11:00 AM, Dennis Schridde
<dennis.schridde@uni-heidelberg.de> wrote:
> Hello!
>
> I investigating the virtualisation abilities of current AMD FirePro hardware;
> specifically how to securely pass a share of a GPU to one application (a Rkt/
> Docker container). I already read vfio.txt and pci-iov-howto.txt, but they do
> not answer my questions. I was unable to find documentation on the process
> online, either.
>
> 1. How do I create VFs from a AMD FirePro PF? I saw an example using VMWare
> ESXi tools, where it is possible to specify RAM size and time-share, but I
> have not seen how that translates to modifying /sys/bus/pci/..., which is the
> method recommended for SR-IOV devices in pci-iov-howto.txt.
>
> 2. After having created VFs, is it possible to bind these to the host's amdgpu
> driver, so that I get multiple /dev/dri/card* device nodes?
>
> 3. Will passing these /dev/dri/card* device nodes into a Rkt/Docker container
> be enough for the AMD Radeon Pro OpenGL runtime to be able to use that card?

SR-IOV support is not yet upstream for Linux.

Alex


>
> Best regards,
> Dennis Schridde
> --
> Heidelberg University Computing Centre
> Service division: Future IT - Research & Education
>
> Tel. +49 6221 54-4519, Fax +49 6221 54-5581
> dennis.schridde@uni-heidelberg.de
>
> http://www.urz.uni-heidelberg.de/
>
> Ruprecht-Karls-Universität Heidelberg
> Universitätsrechenzentrum
> Im Neuenheimer Feld 293, 69120 Heidelberg, Germany
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>
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Re: Bind amdgpu to SR-IOV virtual function

[Dennis Schridde]

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On Thursday, 25 August 2016 11:44:08 CEST Alex Deucher wrote:
> SR-IOV support is not yet upstream for Linux.

Where do I ask about the abilities of the binary driver? Is there another 
mailinglist?

--Dennis

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Re: Bind amdgpu to SR-IOV virtual function

[Alex Deucher]

On Thu, Aug 25, 2016 at 11:51 AM, Dennis Schridde
<dennis.schridde@uni-heidelberg.de> wrote:
> On Thursday, 25 August 2016 11:44:08 CEST Alex Deucher wrote:
>> SR-IOV support is not yet upstream for Linux.
>
> Where do I ask about the abilities of the binary driver? Is there another
> mailinglist?

There is no binary kernel driver.  The Pro stack uses the open source
amdgpu kernel driver and just adds closed source usermode components
like OpenGL.  We haven't released SR-IOV support yet on Linux.

Alex
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