From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH 6/7] sfc: Improve reliability of RX queue flushing Date: Wed, 26 Aug 2009 18:04:25 -0700 (PDT) Message-ID: <20090826.180425.143307681.davem@davemloft.net> References: <1251310693.27345.19.camel@achroite> 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]:53170 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754488AbZH0BEL (ORCPT ); Wed, 26 Aug 2009 21:04:11 -0400 In-Reply-To: <1251310693.27345.19.camel@achroite> Sender: netdev-owner@vger.kernel.org List-ID: From: Ben Hutchings Date: Wed, 26 Aug 2009 19:18:13 +0100 > Reconfiguring the port requires us to flush all DMA queues. In > repeated testing we have found that RX flushes would sometimes fail > because the RX DMA engine was not properly isolated from the MACs. > > Signed-off-by: Ben Hutchings Applied.