Waskiewicz Jr, Peter P wrote: >>This leaks the device. You treat every single-queue device as >>having a single subqueue. If it doesn't get too ugly it would >>be nice to avoid this and only allocate the subqueue states >>for real multiqueue devices. > > > We went back and forth on this. The reason we allocate a queue in every > case, even on single-queue devices, was to make the stack not have > branching for multiqueue and non-multiqueue devices. If we don't have > at least one queue on a device, then we can't have > netif_subqueue_stopped() in the hotpath unless we check if a device is > multiqueue before. The original patches I released had this branching, > and I was asked to not do that.
OK, thanks for the explanation. >>>+ skb->queue_mapping = >>>+ q->prio2band[q->band2queue[band&TC_PRIO_MAX]]; >> >> >>Does this needs to be cleared at some point again? TC actions >>might redirect or mirror packets to other (multiqueue) devices. > > > If an skb is redirected to another device, the skb should be filtered > through that device's qdisc, yes? Yes, but the device might not have a queue or use something different than prio, so the value would stay the same. I think you need to clear it before enqueueing a packet or alternatively when redirecting in the mirred action. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
