From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-2.6 2/2] sfc: SFE4002/SFN4112F: Widen temperature and voltage tolerances Date: Fri, 19 Feb 2010 17:03:06 -0800 (PST) Message-ID: <20100219.170306.112995626.davem@davemloft.net> References: <1266622444.2091.10.camel@achroite.uk.solarflarecom.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-net-drivers@solarflare.com To: bhutchings@solarflare.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:37334 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752986Ab0BTBCu (ORCPT ); Fri, 19 Feb 2010 20:02:50 -0500 In-Reply-To: <1266622444.2091.10.camel@achroite.uk.solarflarecom.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Ben Hutchings Date: Fri, 19 Feb 2010 23:34:03 +0000 > The temperature and voltage limits currently set on these boards are > too conservative and will cause the driver to stop the net device > erroneously in some systems. > > Based on a review of the chip datasheets and advice from the designer > of these boards: > > - Raise the maximum board temperatures to the specified maximum ambient > temperatures for their PHYs plus the expected temperature bias of the > board > - Raise the maximum controller temperature to 90 degrees > - Lower the minimum temperatures to 0 degrees > - Widen the voltage tolerances to at least +/- 10% > > Signed-off-by: Ben Hutchings Applied.