On Fri, May 9, 2008 at 1:30 AM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > > > I've just scanned the thread that was explaining why is this necessary > > I will read it more carefully... I have just feeling that all this > > wlan stuff just fits very awkwardly into current networking stack. > > That's not really related to wireless at all, if you want to do > zero-copy IO then you need to checksum when the stuff hits the wire > which means out of hardware buffers, which some hardware (including > 802.11) doesn't support so you need to copy, nothing wireless specific > here :) > The FCS/CRS checksum of the wireless packet is performed in the HW but why should I care about IP layer? > Anyway, with the changes davem and I are making to actually save the > *extra* copy we should be doing well. That's where you want to look for > improvements. This is just for the bridging case, isn't it? Tomas -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
