[Intel-wired-lan] [PATCH v6 0/3] PCI: Precision Time Measurement support

Bjorn Helgaas helgaas at kernel.org
Tue Jul 19 21:19:26 UTC 2016


On Mon, Jun 13, 2016 at 02:05:26PM -0500, Bjorn Helgaas wrote:
> This is a slightly different proposal for the PTM support Jonathan
> proposed here:
> 
>   http://lkml.kernel.org/r/1462956446-27361-2-git-send-email-jonathan.yong@intel.com
> 
> I split this into three pieces mostly for ease in reviewing.  They
> could all be squashed:
> 
>   - Enable PTM in root ports and switches automatically at boot
>   - Enable PTM in endpoints when requested by driver
>   - Add clock granularity information
> 
> I have some open questions about how PTM works on Root Complex
> Integrated Endpoints and whether we should enable it automatically
> even without a driver request.  And I probably left out some details
> of the clock granularity computation, so treat this as more of an RFC
> than anything.
> 
> Bjorn
> 
> ---
> 
> Bjorn Helgaas (2):
>       PCI: Add pci_enable_ptm() for drivers to enable PTM on endpoints
>       PCI: Add PTM clock granularity information
> 
> Jonathan Yong (1):
>       PCI: Add Precision Time Measurement (PTM) support

Jonathan, any comments?


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