From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268610AbUHLQqg (ORCPT ); Thu, 12 Aug 2004 12:46:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268611AbUHLQqg (ORCPT ); Thu, 12 Aug 2004 12:46:36 -0400 Received: from e1.ny.us.ibm.com ([32.97.182.101]:33701 "EHLO e1.ny.us.ibm.com") by vger.kernel.org with ESMTP id S268610AbUHLQq2 (ORCPT ); Thu, 12 Aug 2004 12:46:28 -0400 Date: Thu, 12 Aug 2004 09:45:57 -0700 From: Patrick Mansfield To: Nathan Bryant Cc: James Bottomley , Benjamin Herrenschmidt , Pavel Machek , Linux SCSI Reflector , Linux Kernel list , Jeff Garzik Subject: Re: [PATCH] SCSI midlayer power management Message-ID: <20040812164557.GA16852@beaverton.ibm.com> References: <4119611D.60401@optonline.net> <20040811080935.GA26098@elf.ucw.cz> <411A1B72.1010302@optonline.net> <1092231462.2087.3.camel@mulgrave> <1092267400.2136.24.camel@gaston> <1092314892.1755.5.camel@mulgrave> <411B736C.7030103@optonline.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <411B736C.7030103@optonline.net> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Aug 12, 2004 at 09:41:00AM -0400, Nathan Bryant wrote: > James Bottomley wrote: > > >Why? We don't do a bus reset on boot, why should we need to do one on > >resume? For FC, the equivalent, a LIP Reset can be rather nasty on a > >SAN and should be avoided. > > > > > that can be host specific. aic7xxx does a bus reset on boot, so i > preserved this on resume. It can be changed via the "no_reset" option, that should probably be honored for resume. > don't know why they do it, but they do. I used to use no_reset, as well as bios no reset (or is it no spin up?) to decrease boot time, until a crash hung the bus and the system could not boot. I suppose letting the bios reset would have gotten around the problem, I can't remember. -- Patrick Mansfield