Messages in this thread | | | Date | Sat, 4 Sep 2010 20:47:39 -0500 (CDT) | From | Christoph Lameter <> | Subject | Re: [PATCH 0/2] [RFC] posix clock tuning |
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On Sat, 4 Sep 2010, Christian Riesch wrote:
> Richard's idea is to support clock hardware for IEEE 1588 (PTP, Precision Time > Protocol). Have a look at the earlier discussions: > > http://lkml.org/lkml/2010/8/16/90
A superficial scan does not give me any definite agreement on an approach. The patchset also needs to be CCed to John Stultz. Without a summary I still am not clear what this is supposed to address.
Tuning of the PTP clock can be done with driver specific configuration rather than a new POSIX clock. That is at least how SGI_CYCLE is operating which is similar.
> http://lkml.org/lkml/2010/8/23/49
Ok this goes more into something that may prove useful but it would be very helpful still to have a clear discussion as to why this is all needed. From what I can tell the functionality is already there and another clock device (CLOCK_SGI_CYCLE) is already providing a model for how a PTP clock could be controlled and used.
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