Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752811AbcCXUXh (ORCPT ); Thu, 24 Mar 2016 16:23:37 -0400 Received: from mga09.intel.com ([134.134.136.24]:15694 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751239AbcCXUXf (ORCPT ); Thu, 24 Mar 2016 16:23:35 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,386,1455004800"; d="scan'208";a="931160940" From: megha.dey@linux.intel.com To: herbert@gondor.apana.org.au, davem@davemloft.net Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, tim.c.chen@linux.intel.com, fenghua.yu@intel.com, Megha Dey Subject: [PATCH 2/6] crypto: sha512-mb - Enable SHA512 multibuffer support Date: Thu, 24 Mar 2016 13:27:25 -0700 Message-Id: <1458851249-3491-3-git-send-email-megha.dey@linux.intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1458851249-3491-1-git-send-email-megha.dey@linux.intel.com> References: <1458851249-3491-1-git-send-email-megha.dey@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1579 Lines: 41 From: Megha Dey Add the config CRYPTO_SHA512_MB which will enable the computation using the SHA512 multi-buffer algorithm. Signed-off-by: Megha Dey Reviewed-by: Fenghua Yu Reviewed-by: Tim Chen --- crypto/Kconfig | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/crypto/Kconfig b/crypto/Kconfig index 3c763d8..02fce62 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -694,6 +694,22 @@ config CRYPTO_SHA256_MB lanes remain unfilled, a flush operation will be initiated to process the crypto jobs, adding a slight latency. +config CRYPTO_SHA512_MB + tristate "SHA512 digest algorithm (x86_64 Multi-Buffer, Experimental)" + depends on X86 && 64BIT + select CRYPTO_SHA512 + select CRYPTO_HASH + select CRYPTO_MCRYPTD + help + SHA-512 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented + using multi-buffer technique. This algorithm computes on + multiple data lanes concurrently with SIMD instructions for + better throughput. It should not be enabled by default but + used when there is significant amount of work to keep the keep + the data lanes filled to get performance benefit. If the data + lanes remain unfilled, a flush operation will be initiated to + process the crypto jobs, adding a slight latency. + config CRYPTO_SHA256 tristate "SHA224 and SHA256 digest algorithm" select CRYPTO_HASH -- 1.9.1