On Wed Aug 31 2022, Vinicius Costa Gomes wrote: > Richard Cochran <richardcoch...@gmail.com> writes: > >> On Tue, Aug 30, 2022 at 09:30:33AM +0200, Kurt Kanzenbach wrote: >>> ptp4l supports setting of socket priority. This is useful for traffic >>> shaping >>> e.g., utilizing Tx steering using TAPRIO or mqprio Qdisc or VLAN egress >>> mappings. >> >> Why can't Qdisc use the dialed dscp_event and dscp_general settings? >> > > That might be possible, one issue is that there are many different > interpretations/maps of the dscp field. Taking a look at the code I see > that sch_cake does something like that for a few interpretations. > Perhaps it's a good idea to move that to a more central place. So other > qdiscs can re-use that. > > In the meantime, something like this should already work (not tested): > > $ tc qdisc add dev $IFACE clsact > $ tc filter add dev $IFACE egress prio 1 u32 match ip dsfield $DSCP_FIELD > 0xff action skbedit priority $PRIORITY
Yes, this should work. Thanks! Thanks, Kurt
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