From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-next v2 0/2] gianfar: Tx timeout issue Date: Mon, 10 Mar 2014 13:18:27 -0400 (EDT) Message-ID: <20140310.131827.672807362272151307.davem@davemloft.net> References: <1394196166-24932-1-git-send-email-claudiu.manoil@freescale.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: claudiu.manoil@freescale.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:44498 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754637AbaCJRSd (ORCPT ); Mon, 10 Mar 2014 13:18:33 -0400 In-Reply-To: <1394196166-24932-1-git-send-email-claudiu.manoil@freescale.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Claudiu Manoil Date: Fri, 7 Mar 2014 14:42:44 +0200 > There's an older Tx timeout issue showing up on etsec2 devices > with 2 CPUs. I pinned this issue down to processing overhead > incurred by supporting multiple Tx/Rx rings, as explained in > the 2nd patch below. But before this, there's also a concurency > issue leading to Rx/Tx spurrious interrupts, addressed by the > 'Tx NAPI' patch below. > The Tx timeout can be triggered with multiple Tx flows, > 'iperf -c -N 8' commands, on a 2 CPUs etsec2 based (P1020) board. Series applied, thanks.