Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934051AbXFGRWQ (ORCPT ); Thu, 7 Jun 2007 13:22:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762324AbXFGRWB (ORCPT ); Thu, 7 Jun 2007 13:22:01 -0400 Received: from mx1.redhat.com ([66.187.233.31]:38785 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758820AbXFGRWA (ORCPT ); Thu, 7 Jun 2007 13:22:00 -0400 Message-ID: <46683E4D.9060801@redhat.com> Date: Thu, 07 Jun 2007 13:20:13 -0400 From: Chuck Ebbert Organization: Red Hat User-Agent: Thunderbird 1.5.0.12 (X11/20070530) MIME-Version: 1.0 To: Jeff Garzik CC: Tejun Heo , Mikael Pettersson , akpm@linux-foundation.org, david@dgreaves.com, jean.luc.coulon@gmail.com, jgarzik@pobox.com, michal.k.k.piotrowski@gmail.com, torvalds@linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [REPOST PATCH] sata_promise: use TF interface for polling NODATA commands References: <200706052131.l55LVkYN000191@harpo.it.uu.se> <20070605215256.GT31565@havoc.gtf.org> <46665AB5.6040508@gmail.com> <20070606102122.GD29122@htj.dyndns.org> <20070606160511.GA23143@havoc.gtf.org> In-Reply-To: <20070606160511.GA23143@havoc.gtf.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 772 Lines: 19 On 06/06/2007 12:05 PM, Jeff Garzik wrote: > FYI to all -- > > As a reminder. the Promise hardware programs registers when it receives > a SET FEATURES - XFER MODE. > > If data transfer is occurring on OTHER ports at the time this is issued, > then data corruption is guaranteed to occur. Polling will not fix this > problem -- all ports need to be inactive, when a SET FEATURES - XFER > MODE command is issued for any port. > So is this patch OK but yet more work needs to be done, or does this patch cause new problems? - 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/