From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Wilcox Subject: Re: [PATCH 3/5] ata: Add TRIM infrastructure Date: Thu, 2 Apr 2009 09:47:42 -0700 Message-ID: <20090402164742.GP2661@linux.intel.com> References: <1238683047-13588-1-git-send-email-willy@linux.intel.com> <1238683047-13588-2-git-send-email-willy@linux.intel.com> <1238683047-13588-3-git-send-email-willy@linux.intel.com> <49D4DFFB.8070201@ru.mvista.com> <20090402161835.GN2661@linux.intel.com> <49D4E8B8.5000301@ru.mvista.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mga10.intel.com ([192.55.52.92]:8026 "EHLO fmsmga102.fm.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932258AbZDBQro (ORCPT ); Thu, 2 Apr 2009 12:47:44 -0400 Content-Disposition: inline In-Reply-To: <49D4E8B8.5000301@ru.mvista.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Sergei Shtylyov Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, jgarzik@redhat.com, David Woodhouse On Thu, Apr 02, 2009 at 08:32:56PM +0400, Sergei Shtylyov wrote: > Matthew Wilcox wrote: > >>> I wonder where to read about the word 169 and commnand 0x06... >>> what's it all about? > >> It's in d2015r1-ATAATAPI_Command_Set_-_2_ACS-2.pdf which can be found on >> the t13 website. > > But since neither ATA/PI-7 nor ATA/PI-8 mention neither the word nor > command, why your validity check requires only ATA/PI-7+ compliance? Because there are ATA-7 devices which implement this feature.