netdev - Re: [PATCH RESEND bpf-next v3 0/6] Zbb support and code simplification for RV64 JIT

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Message-ID: <874jf5qudx.fsf@all.your.base.are.belong.to.us>
Date: Mon, 22 Jan 2024 16:07:22 +0100
From: Björn Töpel <bjorn@...nel.org>
To: Pu Lehui <pulehui@...weicloud.com>, bpf@...r.kernel.org,
 linux-riscv@...ts.infradead.org, netdev@...r.kernel.org
Cc: Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann
 <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>, Martin KaFai
 Lau <martin.lau@...ux.dev>, Song Liu <song@...nel.org>, Yonghong Song
 <yhs@...com>, John Fastabend <john.fastabend@...il.com>, KP Singh
 <kpsingh@...nel.org>, Stanislav Fomichev <sdf@...gle.com>, Hao Luo
 <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>, Palmer Dabbelt
 <palmer@...belt.com>, Conor Dooley <conor@...nel.org>, Luke Nelson
 <luke.r.nels@...il.com>, Pu Lehui <pulehui@...wei.com>
Subject: Re: [PATCH RESEND bpf-next v3 0/6] Zbb support and code
 simplification for RV64 JIT

Björn Töpel <bjorn@...nel.org> writes:

> Pu Lehui <pulehui@...weicloud.com> writes:
>
>> On 2024/1/22 22:33, Björn Töpel wrote:
>>> Pu Lehui <pulehui@...weicloud.com> writes:
>>> 
>>>> Add Zbb support [0] to optimize code size and performance of RV64 JIT.
>>>> Meanwhile, adjust the code for unification and simplification. Tests
>>>> test_bpf.ko and test_verifier have passed, as well as the relative
>>>> testcases of test_progs*.
>>>>
>>>> Link: https://github.com/riscv/riscv-bitmanip/releases/download/1.0.0/bitmanip-1.0.0-38-g865e7a7.pdf [0]
>>>>
>>>> v3 resend:
>>>> - resend for mail be treated as spam.
>>>>
>>>> v3:
>>>> - Change to early-exit code style and make code more explicit.
>>> 
>>> Lehui,
>>> 
>>> Sorry for the delay. I'm chasing a struct_ops RISC-V BPF regression in
>>> 6.8-rc1, I will need to wrap my head around that prior reviewing
>>> properly.
>>> 
>>
>> Oh, I also found the problem with struct ops and fixed it

Pu, with your patch bpf_iter_setsockopt, bpf_tcp_ca, and dummy_st_ops
passes!

Please spin a proper fixes patch, and feel free to add:

Tested-by: Björn Töpel <bjorn@...osinc.com>
Acked-by: Björn Töpel <bjorn@...nel.org>


Björn