Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934818AbXFFQF2 (ORCPT ); Wed, 6 Jun 2007 12:05:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759105AbXFFQFP (ORCPT ); Wed, 6 Jun 2007 12:05:15 -0400 Received: from havoc.gtf.org ([69.61.125.42]:48911 "EHLO havoc.gtf.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751098AbXFFQFN (ORCPT ); Wed, 6 Jun 2007 12:05:13 -0400 Date: Wed, 6 Jun 2007 12:05:11 -0400 From: Jeff Garzik To: Tejun Heo Cc: 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 Message-ID: <20070606160511.GA23143@havoc.gtf.org> References: <200706052131.l55LVkYN000191@harpo.it.uu.se> <20070605215256.GT31565@havoc.gtf.org> <46665AB5.6040508@gmail.com> <20070606102122.GD29122@htj.dyndns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070606102122.GD29122@htj.dyndns.org> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 623 Lines: 20 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. Jeff - 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/