From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Ball Subject: Re: CMD23 plumbing and support patchset. Date: Wed, 20 Apr 2011 21:44:53 -0400 Message-ID: References: <1302741523-22276-1-git-send-email-andreiw@motorola.com> <1302950458-1969-1-git-send-email-andreiw@motorola.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from void.printf.net ([89.145.121.20]:41765 "EHLO void.printf.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751398Ab1DUBkp (ORCPT ); Wed, 20 Apr 2011 21:40:45 -0400 In-Reply-To: <1302950458-1969-1-git-send-email-andreiw@motorola.com> (Andrei Warkentin's message of "Sat, 16 Apr 2011 05:40:53 -0500") Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Andrei Warkentin Cc: linux-mmc@vger.kernel.org, arindam.nath@amd.com Hi, On Sat, Apr 16 2011, Andrei Warkentin wrote: > This is the third version of the CMD23 plumbing and host driver support > patch set. > > Changes: > 1) CMD23 support (used for features such as reliable writes) is decoupled > from general multiblock trans through use of a quirk for affected cards. > 2) Newer Sandisk MMC products are whitelisted along with some known good ones. All other > MMC products do not use CMD23 for general transfers (seems like safest choice for now). > SD products unaffected. Just gave this a try on SEM04G, which is in the whitelist, but didn't see a performance increase (or decrease). What are you using for a testcase? I'm a little wary of running mmc_test on it. :) - Chris. -- Chris Ball One Laptop Per Child