On Thu, 14 Nov 2024 17:39:06 -0800 Jakub Kicinski <kuba@xxxxxxxxxx> wrote: > On Thu, 14 Nov 2024 11:46:10 +0100 Kory Maincent wrote: > [...] > > > > > > In net_device? Yes, I think so. > > > > Also as the "user" is not described in the ptp_clock structure the only way > > to find it is to roll through all the PTP of the concerned net device > > topology. This find ptp loop will not be in the hotpath but only when > > getting the tsinfo of a PHC or changing the current PHC. Is it ok for you? > > I think so :) We need to be able to figure out if it's the MAC PHC > quickly, because MAC timestamping can be high rate. But IIUC PHY > timestamping will usually involve async work and slow buses, so > walking all PHYs of a netdev should be fine. Especially that 99% > of the time there will only be one. Hope I understood the question.. Yes, thanks for the confirmation. Regards, -- Köry Maincent, Bootlin Embedded Linux and kernel engineering https://bootlin.com
