From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jes Sorensen Subject: Re: [PATCH] use mmiowb in qla1280.c Date: 22 Oct 2004 05:53:13 -0400 Sender: linux-scsi-owner@vger.kernel.org Message-ID: References: <200410211613.19601.jbarnes@engr.sgi.com> <200410211617.14809.jbarnes@engr.sgi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from vanessarodrigues.com ([192.139.46.150]:51872 "EHLO jaguar.mkp.net") by vger.kernel.org with ESMTP id S270877AbUJVJxP (ORCPT ); Fri, 22 Oct 2004 05:53:15 -0400 In-Reply-To: <200410211617.14809.jbarnes@engr.sgi.com> List-Id: linux-scsi@vger.kernel.org To: Jesse Barnes Cc: akpm@osdl.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, jeremy@sgi.com >>>>> "Jesse" == Jesse Barnes writes: Jesse> There are a few spots in qla1280.c that don't need a full PCI Jesse> write flush to the device, but rather a simple write ordering Jesse> guarantee. This patch changes some of the PIO reads that cause Jesse> write flushes into mmiowb calls instead, which is a lighter Jesse> weight way of ensuring ordering. Jesse> Jes and James, can you ack this and/or push it in via the SCSI Jesse> BK tree? ACK! James will you push this one? Cheers, Jes