linux-kernel - [PATCH 0/2] Improve crc32c() performance on newer x86

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Message-ID: <20250719224938.126512-1-ebiggers@kernel.org>
Date: Sat, 19 Jul 2025 15:49:36 -0700
From: Eric Biggers <ebiggers@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: linux-crypto@...r.kernel.org,
	x86@...nel.org,
	Ard Biesheuvel <ardb@...nel.org>,
	Eric Biggers <ebiggers@...nel.org>
Subject: [PATCH 0/2] Improve crc32c() performance on newer x86_64 CPUs

This series improves crc32c() performance on lengths >= 512 bytes on
newer x86_64 CPUs by enabling the VPCLMULQDQ (vector carryless
multiplication) optimized CRC code.

This series targets crc-next.

Eric Biggers (2):
  lib/crc: x86: Reorganize crc-pclmul static_call initialization
  lib/crc: x86/crc32c: Enable VPCLMULQDQ optimization where beneficial

 lib/crc/x86/crc-pclmul-consts.h   | 47 +++++++++++++++++++++++++++++-
 lib/crc/x86/crc-pclmul-template.h | 31 +++++++++-----------
 lib/crc/x86/crc-t10dif.h          |  9 +++++-
 lib/crc/x86/crc32.h               | 48 +++++++++++++++++++++++++++++--
 lib/crc/x86/crc64.h               | 15 ++++++++--
 5 files changed, 127 insertions(+), 23 deletions(-)


base-commit: 9b0236f4efb889869f7d4f3f084f508cc0433ec9
-- 
2.50.1