Hi Jerry, On Thu, Dec 21, 2023 at 11:48:27PM -0600, Eric Biggers wrote: > Hi Jerry, > > On Tue, Dec 05, 2023 at 05:27:49PM +0800, Jerry Shih wrote: > > Changelog v2: > > - Turn to use simd skcipher interface for AES-CBC/CTR/ECB/XTS and > > Chacha20. > > If I understand correctly, the RISC-V kernel-mode vector support now seems to be > heading down the path of supporting softirq context, as I had suggested > originally. With patches 1-2 of Andy Chiu's latest patchset > "[v7, 00/10] riscv: support kernel-mode Vector" > (https://lore.kernel.org/linux-riscv/20231221134318.28105-1-andy.chiu@xxxxxxxxxx). > applied, the kernel has basic support for kernel-mode vector, including in > softirq context. > > With that being the case, "skcipher" algorithms can just use the RISC-V vector > unit unconditionally, given that skcipher only supports task and softirq > context. Therefore, can you consider undoing your change that added fallbacks > using the simd helper (crypto/simd.c)? Thanks! > I had a go at incorporating my suggestions into your patchset, and rebasing the patchset onto riscv/for-next plus the first two patches of "[v9, 00/10] riscv: support kernel-mode Vector". You can get the result from branch "riscv-crypto" of https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git. Everything seems to work (tested in QEMU, as usual). Please consider using it when you send out v4; thanks! I can even send it out myself, if you want, but I assume you're still "owning" the patchset. - Eric
