On Sun, Jul 05, 2009 at 11:26:58AM +0800, Herbert Xu wrote: > > Here's a another crazy idea: > > Let's use dummy TX descriptors to generate an interrupt, either > with or without transmitting an actual packet on the wire depending > on the NIC. Here's an even crazier idea that doesn't use dummy descriptors. xmit(skb) if (TX queue contains no interrupting descriptor && qdisc is empty) mark TX descriptor as interrupting if (TX queue now contains an interrupting descriptor && qdisc len < 2) stop queue if (TX ring full) stop queue clean() do work wake queue as per usual Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
