From mboxrd@z Thu Jan 1 00:00:00 1970 From: Borislav Petkov Subject: Re: http://bugzilla.kernel.org/show_bug.cgi?id=11742 Date: Sat, 25 Oct 2008 19:47:10 +0200 Message-ID: <20081025174710.GA32108@gollum.tnic> References: <20081020112039W.fujita.tomonori@lab.ntt.co.jp> <200810222215.02762.bzolnier@gmail.com> <20081024065043.GA4762@gollum.tnic> <200810251458.46140.bzolnier@gmail.com> <49032230.3080603@ru.mvista.com> Reply-To: petkovbb@gmail.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from fg-out-1718.google.com ([72.14.220.157]:31231 "EHLO fg-out-1718.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751918AbYJYRrR (ORCPT ); Sat, 25 Oct 2008 13:47:17 -0400 Received: by fg-out-1718.google.com with SMTP id 19so1343888fgg.17 for ; Sat, 25 Oct 2008 10:47:15 -0700 (PDT) Content-Disposition: inline In-Reply-To: <49032230.3080603@ru.mvista.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Sergei Shtylyov Cc: Bartlomiej Zolnierkiewicz , FUJITA Tomonori , valerio.p@libero.it, linux-ide@vger.kernel.org On Sat, Oct 25, 2008 at 05:42:08PM +0400, Sergei Shtylyov wrote: > Hello. > > Bartlomiej Zolnierkiewicz wrote: > >> For 'addr' we may try to use 4 bytes instead of the current 32 ones but lets >> fix the regression first. >> > > Alas, TX4939 requeires 8-byte DMA address (and byte count) alignment. > Another semi-compatible SFF-8038 implementation... ... which calls for a field in the capabilities and mechanical status page saying something like: hello, I'm a xy device and I can do z bytes dma alignment, otherwise I get cranky and don't work anymore :) -- Regards/Gruss, Boris.