From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751033Ab2IYVuL (ORCPT ); Tue, 25 Sep 2012 17:50:11 -0400 Received: from mga02.intel.com ([134.134.136.20]:2419 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750768Ab2IYVuJ (ORCPT ); Tue, 25 Sep 2012 17:50:09 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,485,1344236400"; d="scan'208";a="212968645" Subject: [PATCH 0/3] Optimize CRC32C calculation using PCLMULQDQ in crc32c-intel module From: Tim Chen To: Herbert Xu , "H. Peter Anvin" , "David S. Miller" Cc: Wajdi Feghali , James Guilford , David Cote , Suresh Siddha , Chaohong Guo , Austin Zhang , linux-kernel , linux-crypto@vger.kernel.org References: Content-Type: text/plain; charset="UTF-8" Date: Tue, 25 Sep 2012 14:50:08 -0700 Message-ID: <1348609808.9977.205.camel@schen9-DESK> Mime-Version: 1.0 X-Mailer: Evolution 2.32.3 (2.32.3-1.fc14) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series optimized CRC32C calculations with PCLMULQDQ instruction for crc32c-intel module. It speeds up the original implementation by 1.6x for 1K buffer and by 3x for buffer 4k or more. The tcrypt module was enhanced for doing speed test on crc32c calculations. Tim Signed-off-by: Tim Chen --- Tim Chen (3): Rename crc32c-intel.c to crc32c-intel_glue.c Optimize CRC32C calculation with PCLMULQDQ instruction Added speed test in tcrypt for crc32c arch/x86/crypto/Makefile | 1 + .../crypto/{crc32c-intel.c => crc32c-intel_glue.c} | 75 ++++ arch/x86/crypto/crc32c-pcl-intel-asm.S | 460 ++++++++++++++++++++ crypto/tcrypt.c | 4 + 4 files changed, 540 insertions(+), 0 deletions(-) rename arch/x86/crypto/{crc32c-intel.c => crc32c-intel_glue.c} (70%) create mode 100644 arch/x86/crypto/crc32c-pcl-intel-asm.S -- 1.7.7.6