On Thu, May 12, 2016 at 03:26:48PM +0100, Robin Murphy wrote: > AArch64 is capable of 128-bit memory accesses without alignment > restrictions, which makes it both possible and highly practical to slurp > up a typical 20-byte IP header in just 2 loads. Implement our own > version of ip_fast_checksum() to take advantage of that, resulting in > considerably fewer instructions and memory accesses than the generic > version. We can also get more optimal code generation for csum_fold() by > defining it a slightly different way round from the generic version, so > throw that into the mix too. > > Suggested-by: Luke Starrett <[email protected]> > Signed-off-by: Robin Murphy <[email protected]>
Queued for 4.8. Thanks. -- Catalin
