Lots of the low latency options require driver and Hardware cooperation, busy polling, BQL, essentially all of the ethtool options, even the IRQ affinity. Inte

Lots of the low latency options require driver and Hardware cooperation, busy polling, BQL, essentially all of the ethtool options, even the IRQ affinity. Intel has been a driving force behind many kernel networking improvements but they naturally don't care for other manufacturers, so they implement a little bit of kernel infrastructure and put the rest into their drivers.