[PATCH V2 0/5] Add an optimization also raid6test for RISC-V support

From: Chunyan Zhang <zhangchunyan@iscas.ac.cn>
To: Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,
	Charlie Jenkins <charlie@rivosinc.com>,
	Song Liu <song@kernel.org>, Yu Kuai <yukuai3@huawei.com>
Cc: linux-riscv@lists.infradead.org, linux-raid@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Chunyan Zhang <zhang.lyra@gmail.com>
Subject: [PATCH V2 0/5] Add an optimization also raid6test for RISC-V support
Date: Fri, 11 Jul 2025 18:09:25 +0800	[thread overview]
Message-ID: <20250711100930.3398336-1-zhangchunyan@iscas.ac.cn> (raw)

The 1st patch is a cleanup;
Patch 2/4 is an optimization that takes Palmer's suggestion;
The last two patches add raid6test support and make the raid6 RVV code buildable on user space.

V2:
* Addressed comments from v1:
- Replaced one load with a move to speed up in _gen/xor_syndrome();
- Added a compiler error
- Dropped the NSIZE macro, instead of using the vector length;
- Modified has_vector() definition for user space;

Chunyan Zhang (5):
  raid6: riscv: Clean up unused header file inclusion
  raid6: riscv: replace one load with a move to speed up the caculation
  raid6: riscv: Add a compiler error
  raid6: riscv: Allow code to be compiled in userspace
  raid6: test: Add support for RISC-V

 lib/raid6/recov_rvv.c   |   9 +-
 lib/raid6/rvv.c         | 362 ++++++++++++++++++++--------------------
 lib/raid6/rvv.h         |  17 ++
 lib/raid6/test/Makefile |   8 +
 4 files changed, 211 insertions(+), 185 deletions(-)

-- 
2.34.1

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