From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 00B363C6A49; Tue, 24 Mar 2026 06:41:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774334508; cv=none; b=MkGoLFOeRdx3m8bvcYs5y4up/lebF2isy59M78VCk6KNaQiccm8fj4omeDSdx40EGBNqKTxSA1ITzEl6PjWAtzsazs8+rOGWs6SdvfBMuMQhWhL8zSD4j1WZOggCba1ESNTtIeQ/1smLQyDB1aEj1FQiBefqrqsLpCnE0QMlaRU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774334508; c=relaxed/simple; bh=7s9vZryFT66CZBvJ/n0s5Y/P8zK5Tr/EbHVEHfuGd8o=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=p9NwmvtAyUM6FwlSIu5xqJy1f9weH0AzBQkPuLF021OUFINSp2XB89Yb83GseYir97P2laZ8TKX4xc++ySXdOwxpVBMc+w9PU8EoTMOPxR2a4/8FLRl8VtyaCw3RaN9x6EU9L0ALO32WPuqr+ucMuu4mJk8TY1vRMe6tiUiyj9A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=lst.de; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=jdAEk/PM; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="jdAEk/PM" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:In-Reply-To:References; bh=YFfnpURaNvid2InKw6RqvyYMx0WKDk590Z+TN8SKWyw=; b=jdAEk/PMgnp2XPZAkpyfIM7WRD frgLC+vaQIkIYhsyj/mWaACd2Y6i5tU7zNIutK00dL2+Q6wH1lWdnTbV0mAIonleJJSMbrwULLE9L wsAw+7buCSo1SEYwmlSSU0yFTk4m/igaOn0Ly5DgbpwVPF7rRUDGy1IO9EshElm2Q05tBUElHL1V8 CIl+Fah74NEirlMmkJauhyX0fiqsXIuccWbvFYrOCTpGy5bWM9CJ44e5JzdhGzhIPZ4YmFAFtYM4f hjnvvzCh/QcPHfsrM27JKs6EE3HbBZc+PxMXNsdmg8t/V9z1LSyG64M3AJ3kxftZuGo8vZzv3MyNO 8xjpKEhg==; Received: from 2a02-8389-2341-5b80-d601-7564-c2e0-491c.cable.dynamic.v6.surfer.at ([2a02:8389:2341:5b80:d601:7564:c2e0:491c] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1w4vSD-00000000m23-3thG; Tue, 24 Mar 2026 06:41:30 +0000 From: Christoph Hellwig To: Andrew Morton Cc: Catalin Marinas , Will Deacon , Ard Biesheuvel , Huacai Chen , WANG Xuerui , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Herbert Xu , Dan Williams , Chris Mason , David Sterba , Arnd Bergmann , Song Liu , Yu Kuai , Li Nan , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-crypto@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-arch@vger.kernel.org, linux-raid@vger.kernel.org Subject: cleanup the RAID6 P/Q library Date: Tue, 24 Mar 2026 07:40:35 +0100 Message-ID: <20260324064115.3217136-1-hch@lst.de> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Hi all, this series cleans up the RAID6 P/Q library to match the recent updates to the RAID 5 XOR library and other CRC/crypto libraries. This includes providing properly documented external interfaces, hiding the internals, using static_call instead of indirect calls and turning the user space test suite into an in-kernel kunit test which is also extended to improve coverage. Note that this changes registration so that non-priority algorithms are not registered, which greatly helps with the benchmark time at boot time. I'd like to encourage all architecture maintainers to see if they can further optimized this by registering as few as possible algorithms when there is a clear benefit in optimized or more unrolled implementations. This series sits on top of the "cleanup the RAID5 XOR library v3" series. A git tree is also available here: git://git.infradead.org/users/hch/misc.git lib-raid6 Gitweb: https://git.infradead.org/?p=users/hch/misc.git;a=shortlog;h=refs/heads/lib-raid6 Diffstat: b/Documentation/crypto/async-tx-api.rst | 4 b/crypto/async_tx/async_pq.c | 9 b/crypto/async_tx/async_raid6_recov.c | 9 b/drivers/dma/bcm-sba-raid.c | 1 b/drivers/md/raid5.c | 4 b/fs/btrfs/raid56.c | 8 b/include/linux/raid/pq.h | 216 ------------ b/include/linux/raid/pq_tables.h | 19 + b/lib/Kconfig | 11 b/lib/Makefile | 1 b/lib/raid/Kconfig | 33 + b/lib/raid/Makefile | 2 b/lib/raid/raid6/Makefile | 124 +++++++ b/lib/raid/raid6/algos.c | 381 ++++++++++++++++++++++ b/lib/raid/raid6/algos.h | 41 ++ b/lib/raid/raid6/arm/neon.c | 23 - b/lib/raid/raid6/arm/pq_arch.h | 22 + b/lib/raid/raid6/arm/recov_neon.c | 25 - b/lib/raid/raid6/int.uc | 10 b/lib/raid/raid6/loongarch/loongarch_simd.c | 31 - b/lib/raid/raid6/loongarch/pq_arch.h | 23 + b/lib/raid/raid6/loongarch/recov_loongarch_simd.c | 39 -- b/lib/raid/raid6/mktables.c | 28 - b/lib/raid/raid6/powerpc/altivec.uc | 32 - b/lib/raid/raid6/powerpc/pq_arch.h | 31 + b/lib/raid/raid6/powerpc/vpermxor.uc | 29 - b/lib/raid/raid6/recov.c | 62 --- b/lib/raid/raid6/riscv/pq_arch.h | 21 + b/lib/raid/raid6/riscv/recov_rvv.c | 14 b/lib/raid/raid6/riscv/rvv.h | 26 - b/lib/raid/raid6/s390/pq_arch.h | 15 b/lib/raid/raid6/s390/recov_s390xc.c | 14 b/lib/raid/raid6/s390/s390vx.uc | 15 b/lib/raid/raid6/tests/Makefile | 3 b/lib/raid/raid6/tests/raid6_kunit.c | 307 +++++++++++++++++ b/lib/raid/raid6/x86/avx2.c | 47 -- b/lib/raid/raid6/x86/avx512.c | 57 +-- b/lib/raid/raid6/x86/mmx.c | 39 -- b/lib/raid/raid6/x86/pq_arch.h | 96 +++++ b/lib/raid/raid6/x86/recov_avx2.c | 22 - b/lib/raid/raid6/x86/recov_avx512.c | 26 - b/lib/raid/raid6/x86/recov_ssse3.c | 23 - b/lib/raid/raid6/x86/sse1.c | 49 -- b/lib/raid/raid6/x86/sse2.c | 47 -- lib/raid6/Makefile | 83 ---- lib/raid6/algos.c | 291 ---------------- lib/raid6/loongarch.h | 38 -- lib/raid6/test/.gitignore | 3 lib/raid6/test/Makefile | 156 --------- lib/raid6/test/test.c | 152 -------- lib/raid6/x86.h | 75 ---- 51 files changed, 1329 insertions(+), 1508 deletions(-)