> > 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? Because the data you're sending is sent via TCP? > > 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? No, this is for TCP and everything else too. If you don't believe me, read the thread, I don't want to re-iterate it all. johannes
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