From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751889Ab2AZHj5 (ORCPT ); Thu, 26 Jan 2012 02:39:57 -0500 Received: from mail-bk0-f46.google.com ([209.85.214.46]:48523 "EHLO mail-bk0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751688Ab2AZHjz convert rfc822-to-8bit (ORCPT ); Thu, 26 Jan 2012 02:39:55 -0500 MIME-Version: 1.0 In-Reply-To: <000001ccdbfb$926d90b0$b748b210$%jun@samsung.com> References: <002701ccd728$edab9350$c902b9f0$%jun@samsung.com> <002501ccdb20$c98b2e80$5ca18b80$%jun@samsung.com> <000c01ccdbf0$71fe58b0$55fb0a10$%jun@samsung.com> <000001ccdbfb$926d90b0$b748b210$%jun@samsung.com> Date: Thu, 26 Jan 2012 16:39:53 +0900 Message-ID: Subject: Re: [PATCH v3 2/2] mmc: core: Support packed command for eMMC4.5 device From: Namjae Jeon To: Seungwon Jeon Cc: Saugata Das , linux-mmc@vger.kernel.org, Chris Ball , linux-kernel@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> >        - Add a variable member in mmc_host for minimum number of packed entries. >> >          This value can be overridden by host. >> Ah.. Okay~ I clearly understand about two queston. >> Totally, Looks good to me. >> Thanks for your reply. >> And I heard that packed cmd is not good while reading small chunk, >> If so, I want to use packed write cmd not read cmd. >> Can I use packed only packed write cmd by seperating >> MMC_CAP2_PACKED_READ_CMD and MMC_CAP2_PACKED_WRITE_CMD ? > Do you think this separate use is common? > Let me consider this more. It is just my idea on user side. if we can select packed read/write set, I believe that we can optmize performance accoding to own's environment. Thanks.