On Wed, 22 Nov 2023 16:36:18 +0200 Vladimir Oltean wrote: > @Jakub, for your long-term "MAC timestamps for PTP, DMA for everything else". > How do you see this? I guess we need some sort of priority function in > the UAPI between hwtstamp providers. > > And even with that, I think the enums that we currently have for filters > are not specific enough. The most we could expose is: > > MAC provider DMA provider > > hwtstamp_rx_filters HWTSTAMP_FILTER_PTP_V2_EVENT HWTSTAMP_FILTER_ALL > tx_type HWTSTAMP_TX_ON HWTSTAMP_TX_ON > > but it isn't clear: for PTP, does the DMA provider give you an RX > timestamp too? If we phrase it as "precise / approximate" rather than "MAC / DMA" - it seems fairly intuitive to give the best timestamp available for a given packet, no? > What about a TX timestamp? I was thinking - socket flag to make packets for a given socket request precise timestamps.
