Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1735887

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

From Sinan Kaya <okaya@codeaurora.org>
Newsgroups linux.kernel
Subject Re: [PATCH] vfio/pci: Virtualize Maximum Payload Size
Date 2017-09-20 18:30 +0200
Message-ID <urQ2R-5so-7@gated-at.bofh.it> (permalink)
References (2 earlier) <urxjA-1CN-15@gated-at.bofh.it> <urI5j-8tt-3@gated-at.bofh.it> <urMVk-3rX-17@gated-at.bofh.it> <urOaJ-4ey-5@gated-at.bofh.it> <urPTc-5ov-29@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

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.


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

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

csiph-web