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.
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.