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Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size

From Auger Eric <eric.auger@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size
Date 2017-09-21 08:40 +0200
Message-ID <us3js-5Dw-5@gated-at.bofh.it> (permalink)
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Hi Sinan,

On 20/09/2017 18:29, Sinan Kaya wrote:
> On 9/20/2017 12:11 PM, Alex Williamson wrote:
>> My impression is that the issue would be inefficiency.  There should be
>> nothing functionally wrong with a read request less than MPS, but we're
>> not "filling" the TLP as much as the topology allows.  Is that your
>> understanding as well, Sinan?
> 
> That's my understanding as well. It would be a performance hit to use a
> value less than MPS.
> 
> 

Thank you for your explanations.

best Regards

Eric

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Thread

[PATCH] vfio/pci: Virtualize Maximum Payload Size Alex Williamson <alex.williamson@redhat.com> - 2017-09-19 19:00 +0200
  Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Auger Eric <eric.auger@redhat.com> - 2017-09-19 20:00 +0200
    Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Alex Williamson <alex.williamson@redhat.com> - 2017-09-19 22:30 +0200
      Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Auger Eric <eric.auger@redhat.com> - 2017-09-20 10:00 +0200
        Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Sinan Kaya <okaya@codeaurora.org> - 2017-09-20 15:10 +0200
        Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Sinan Kaya <okaya@codeaurora.org> - 2017-09-20 15:10 +0200
          Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Auger Eric <eric.auger@redhat.com> - 2017-09-20 16:30 +0200
            Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Sinan Kaya <okaya@codeaurora.org> - 2017-09-20 17:10 +0200
            Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Alex Williamson <alex.williamson@redhat.com> - 2017-09-20 18:20 +0200
              Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Sinan Kaya <okaya@codeaurora.org> - 2017-09-20 18:30 +0200
                Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Auger Eric <eric.auger@redhat.com> - 2017-09-21 08:40 +0200
  Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size Auger Eric <eric.auger@redhat.com> - 2017-09-21 08:40 +0200

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