From: Herbert Xu <[EMAIL PROTECTED]> Date: Tue, 13 Nov 2007 20:03:28 +0800
> On Tue, Nov 13, 2007 at 03:36:11AM -0800, David Miller wrote: > > > > The performance implications can be pretty severe however. > > I wish we could address this somehow. > > Or perhaps we should just teach everyone to always run tcpdump > with -p, like me :) :-) > Of course this would still have a negative impact on those who > have to be in promiscuous mode all the time (heh) due to multiple > unicast MAC addresses and such. However, we should able to > communicate that fact to the driver and the driver can then elect > to not disable VLAN acceleration unless we really want to be in > promiscuous mode. We already do with the code Patrick added a while ago so that drivers can support multiple MAC addresses in hardware. Now just to get the virtualization technologies and all the drivers using it properly. > In other words we can make it so that nobody is in promiscuous > mode and therefore have to disable VLAN acceleration *unless* > they really want to be in that state. In which case it would > imply that they wish to see everything and therefore we should > disable VLAN acceleration. This is too complicated, we have multiple unicast MAC support in the driver API already, let's simply use it. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
