On Tue, 15 Jun 2021 at 15:29, Bin Meng <bmeng.cn@xxxxxxxxx> wrote: > ... > Yes, Gary Guo sent one patch long time ago against the broken assembly > version, but that patch was still not applied as of today. > https://patchwork.kernel.org/project/linux-riscv/patch/20210216225555.4976-1-gary@xxxxxxxxxxx/ > > I suggest Matteo re-test using Gary's version. That's a good idea, but if you read the replies to Gary's original patch https://lore.kernel.org/linux-riscv/20210216225555.4976-1-gary@xxxxxxxxxxx/ .. both Gary, Palmer and David would rather like a C-based version. This is one attempt at providing that. > > I'm surprised IP_NET_ALIGN isn't set to 2 to try to > > avoid all these misaligned copies in the network stack. > > Although avoiding 8n+4 aligned data is rather harder. > > > > Misaligned copies are just best avoided - really even on x86. > > The 'real fun' is when the access crosses TLB boundaries. > > Regards, > Bin
