From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Degler Subject: Re: aic79xx Date: Mon, 27 Feb 2006 15:20:10 -0500 Message-ID: <44035EFA.5020602@degler.net> References: <200602221618.58553.srattai@zmnh.uni-hamburg.de> <1140628452.3227.25.camel@mulgrave.il.steeleye.com> <200602221839.09470.srattai@zmnh.uni-hamburg.de> <1140969107.3692.2.camel@mulgrave.il.steeleye.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from crusoe.degler.net ([66.114.64.229]:14535 "EHLO crusoe.degler.net") by vger.kernel.org with ESMTP id S932339AbWB0UUN (ORCPT ); Mon, 27 Feb 2006 15:20:13 -0500 In-Reply-To: <1140969107.3692.2.camel@mulgrave.il.steeleye.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: James Bottomley Cc: Stephan Rattai , linux-scsi@vger.kernel.org Hello, I've observed this problem as well. I'd be happy to test a patch, or derive one if the patch isn't too involved. skd James Bottomley wrote: >On Wed, 2006-02-22 at 18:39 +0100, Stephan Rattai wrote: > > >>cat /sys/class/spi_transport/target1\:0\:1/min_period >>6.25 >> >>2.6.16-rc3 ? Whatever causes this behaviour must have been introduced in >>2.6.14. The cat above is taken from 2.6.15.4. The output from 2.6.14 is the >>same (as is the output from /proc/scsi/aic79xx/1), 2.6.16-rc4 dito. 2.6.13 >>was working as expected. >> >> > >OK, I'm afraid this is a bit more serious than I thought. Apparently >the aic7xxx code that pulls the settings out of the seeprom didn't get >ported over to the aic79xx driver. > >Temporarily, to achive what you want, you can just do > >echo 12.5 > /sys/class/spi_transport/target1\:0\:1/min_period >echo 1 > /sys/class/spi_transport/target1\:0\:1/revalidate > >and that should bring the speed down to U160. > >I'll see what it will take to get the seeprom functions ported, but they >probably won't make 2.6.16. > >James > > >- >To unsubscribe from this list: send the line "unsubscribe linux-scsi" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html > > >