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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" Hello Muhammad, On 18/10/2022 04:07, Muhammad Husaini Zulkifli wrote: > The problem is that, when there is a lot of traffic, there is a high chance > that the timestamps for a PTP packet will be lost if both PTP and Non-PTP > packets use the same SOF TIMESTAMPING TX HARDWARE causing the tx timeout. Why would the timestamp be affected by the amount of traffic? What tx timeout? > DMA timestamps through socket options are not currently available to > the user. Because if the user wants to, they can configure the hwtstamp > config option to use the new introduced DMA Time Stamp flag through the > setsockopt(). > > With these additional socket options, users can continue to utilise > HW timestamps for PTP while specifying non-PTP packets to use DMA > timestamps if the NIC can support them. Is it per socket? Will there be a way to know which types of timestamps are going to be used on queues setup time? > This patch series also add a new HWTSTAMP_FILTER_DMA_TIMESTAMP receive > filters. This filter can be configured for devices that support/allow the > DMA timestamp retrieval on receive side. So if I understand correctly, to solve the problem you described at the beginning, you'll disable port timestamp for all incoming packets? ptp included? _______________________________________________ Intel-wired-lan mailing list Intel-wired-lan@osuosl.org https://lists.osuosl.org/mailman/listinfo/intel-wired-lan