From patchwork Thu Dec 17 17:13:06 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cyrille Pitchen X-Patchwork-Id: 7875291 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Original-To: patchwork-linux-crypto@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id EA253BEEE5 for ; Thu, 17 Dec 2015 17:14:32 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2AB412042C for ; Thu, 17 Dec 2015 17:14:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4885D20426 for ; Thu, 17 Dec 2015 17:14:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752195AbbLQRO2 (ORCPT ); Thu, 17 Dec 2015 12:14:28 -0500 Received: from eusmtp01.atmel.com ([212.144.249.242]:58825 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751215AbbLQRO1 (ORCPT ); Thu, 17 Dec 2015 12:14:27 -0500 Received: from tenerife.corp.atmel.com (10.161.101.13) by eusmtp01.atmel.com (10.161.101.30) with Microsoft SMTP Server id 14.3.235.1; Thu, 17 Dec 2015 18:14:19 +0100 From: Cyrille Pitchen To: , , CC: , , , Cyrille Pitchen Subject: [PATCH 22/24] crypto: atmel-aes: change the DMA threshold Date: Thu, 17 Dec 2015 18:13:06 +0100 Message-ID: <4b6dbda450970ac204c1b561278396d02b27dc7f.1450366831.git.cyrille.pitchen@atmel.com> X-Mailer: git-send-email 1.8.2.2 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Increase the DMA threshold to 256: PIO accesses offer better performances than the DMA when processing small amounts of data. Signed-off-by: Cyrille Pitchen --- drivers/crypto/atmel-aes.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c index a34919f6b7d7..ea645b4ee997 100644 --- a/drivers/crypto/atmel-aes.c +++ b/drivers/crypto/atmel-aes.c @@ -76,7 +76,7 @@ #define ATMEL_AES_QUEUE_LENGTH 50 -#define ATMEL_AES_DMA_THRESHOLD 16 +#define ATMEL_AES_DMA_THRESHOLD 256 struct atmel_aes_caps {