Messages in this thread | | | Date | Wed, 8 Jul 2020 03:55:06 -0700 | From | Richard Cochran <> | Subject | Re: [PATCH 1/5] net: fec: properly support external PTP PHY for hardware time stamping |
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On Mon, Jul 06, 2020 at 09:33:30PM +0300, Sergey Organov wrote: > Vladimir Oltean <olteanv@gmail.com> writes: > > > On Mon, Jul 06, 2020 at 06:21:59PM +0300, Sergey Organov wrote: > > Both are finicky in their own ways. There is no real way for the user to > > select which PHC they want to use. The assumption is that you'd always > > want to use the outermost one, and that things in the kernel side always > > collaborate towards that end.
+1
In addition, for PHY time stamping you must enable the costly CONFIG_NETWORK_PHY_TIMESTAMPING option at compile time, and so the user most definitely wants the "outer" function.
> Makes sense, -- thanks for clarification! Indeed, if somebody connected > that external thingy, chances are high it was made for a purpose.
Yes, exactly.
Thanks, Richard
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