Re: [PATCH] 802.1Q VLAN

[Tommy Christensen <tommy.christensen@xxxxxxxxx>]

Ben Greear wrote:
> Can't you also add a queue to a VLAN device?
Sure you can. This is the best solution, if you have a way of
waking up the queue.

> > Nice. This idea is definitely worth persuing. However, ideally we
> > would want to be notified when the *qdisc* queue opens up - this
> > is our "tx ring buffer".
>
> Maybe the qdisc could automatically flush what it could to lower
> level devices/queues whenever it was asked to enqueue a packet?
> This way, waking the writers could automatically wake the various
> queues under the writers.
>
> That could be happening already, and might explain why my pktgen hacks
> work.
Yes, this is what qdisc does. It just isn't good enough to have to
wait for the next packet, IMO.


-Tommy