> On Tue, Dec 21, 2021 at 02:13:04PM -0800, Maciej Żenczykowski wrote: > > > > As for what is driving this? Upcoming wifi standard to allow > > > > access points to inform client devices how to dscp mark individual flows. > > > Interesting. > > > > > > How does the sending host get this dscp value from wifi and then > > > affect the dscp of a particular flow? Is the dscp going to be > > > stored in a bpf map for the bpf prog to use? > > > > It gets it out of band via some wifi signaling mechanism. > > Tyler probably knows the details. > > > > Storing flow match information to dscp mapping in a bpf map is indeed the plan. > > This is for an upcoming QoS Wifi Alliance spec. Wifi will get the dscp for a corresponding flow and as Maze said the current plan is to store this map info in bpf to modify packets.