From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from edu-smtp-01.edutel.nl (edu-smtp-01.edutel.nl [88.159.1.175]) by ozlabs.org (Postfix) with ESMTP id AFC1BB70A8 for ; Mon, 16 Aug 2010 22:29:40 +1000 (EST) Message-ID: <4C692F31.2020705@neli.hopto.org> Date: Mon, 16 Aug 2010 14:29:37 +0200 From: Micha Nelissen MIME-Version: 1.0 To: Alexandre Bounine Subject: Re: [PATCH 7/9] RapidIO: Add handling for PW message from a lost device References: <1281712686-31308-1-git-send-email-alexandre.bounine@idt.com> <1281712686-31308-8-git-send-email-alexandre.bounine@idt.com> In-Reply-To: <1281712686-31308-8-git-send-email-alexandre.bounine@idt.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linuxppc-dev@ozlabs.org, akpm@linux-foundation.org, linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Alexandre Bounine wrote: > Add check if PW message source device is accessible and change PW message > handler to recover if PW message source device is not available anymore (power > down or link disconnect). I am not quite sure what the point is of this patch. What do you need to recover from? > To avoid possible loss of notification, the PW message handler scans the route > back from the source device to identify end of the broken link. Do you mean if port-writes are dropped? Then they did not reach you in the first place. If a link in between is broken, the associated switch will 'complain' and send port-writes, no? Micha