On Tue, Jun 11, 2024 at 11:21:43PM +0800, Herbert Xu wrote: > > Therefore if we switched to a linked-list API networking could > give us the buffers with minimal changes. BTW, this is not just about parallelising hashing. Just as one of the most significant benefits of GSO does not come from hardware offload, but rather the amortisation of (network) stack overhead. IOW you're traversing a very deep stack once instead of 40 times (this is the factor for 64K vs MTU, if we extend beyond 64K (which we absolute should do) the benefit would increase as well). The same should apply to the Crypto API. So even if this was a purely software solution with no assembly code at all, it may well improve GCM performance (at least for users able to feed us bulk data, like networking). Cheers, -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
