Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S969148AbXFHPdT (ORCPT ); Fri, 8 Jun 2007 11:33:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1763388AbXFHPc5 (ORCPT ); Fri, 8 Jun 2007 11:32:57 -0400 Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:40150 "EHLO the-village.bc.nu" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1756645AbXFHPcz (ORCPT ); Fri, 8 Jun 2007 11:32:55 -0400 Date: Fri, 8 Jun 2007 16:38:04 +0100 From: Alan Cox To: Jeff Garzik Cc: Tejun Heo , Linus Torvalds , Gregor Jasny , Linux Kernel Mailing List , linux-ide@vger.kernel.org, Andrew Morton Subject: Re: [PATCH] Re: Linux v2.6.22-rc3 Message-ID: <20070608163804.4926e499@the-village.bc.nu> In-Reply-To: <20070608143136.GC25649@havoc.gtf.org> References: <9d2cd630705270801m2826be60p3f802c502b26c531@mail.gmail.com> <466196AD.3090502@garzik.org> <9d2cd630706031046n2bd77585o7c0df1c5fea5167f@mail.gmail.com> <46667466.4010500@gmail.com> <9d2cd630706062322v2d73b32dp1da56f97e2069fff@mail.gmail.com> <4667B347.9040900@gmail.com> <20070607224746.GA23290@havoc.gtf.org> <46690D10.9040808@gmail.com> <20070608143136.GC25649@havoc.gtf.org> X-Mailer: Claws Mail 2.9.1 (GTK+ 2.10.8; i386-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 803 Lines: 19 > See a URL I posted earlier in this thread. With dumb ATAPI devices we > actually have to wait a bit for BSY to be asserted. Not only at reset, > but also for every command 400nS and the current code correctly accounts for it. > > How about limiting nsect/lbal wait duration? Say, 100ms or 500ms? That > > can somewhat ease our paranoia and should show acceptable behavior for > > braindead devices too. > > That's quite reasonable. Agreed - means the IT821x takes a bit longer to respond but ensures that we avoid any unpleasant suprises elsewhere. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/