Messages in this thread | | | From | Kurt Kanzenbach <> | Subject | Re: [PATCH RFC V1 net-next 3/4] net: Let the active time stamping layer be selectable. | Date | Fri, 21 Jan 2022 12:05:22 +0100 |
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On Thu Jan 20 2022, Vladimir Oltean wrote: > Hi Richard, > > On Mon, Jan 03, 2022 at 03:25:54PM -0800, Richard Cochran wrote: >> Make the sysfs knob writable, and add checks in the ioctl and time >> stamping paths to respect the currently selected time stamping layer. >> >> Signed-off-by: Richard Cochran <richardcochran@gmail.com> >> --- > > Could we think of a more flexible solution? Your proposal would not > allow a packet to have multiple hwtstamps, and maybe that would be > interesting for some use cases (hardware testing, mostly).
One use case i can think of for having multiple hwtimestamps per packet is crosstimestamping. Some devices such as hellcreek have multiple PHCs and allow generation of such crosstimestamps.
Thanks, Kurt [unhandled content-type:application/pgp-signature] | |