From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Engelmayer Subject: [RFC] CPSW: dual standalone emac mode / bonding Date: Wed, 5 Mar 2014 18:33:18 +0100 Message-ID: <20140305183318.16f5dafa@frequentis.com> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Cc: To: , Return-path: Received: from mail1.frequentis.com ([195.20.158.50]:20742 "EHLO mail1.frequentis.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751967AbaCERnm (ORCPT ); Wed, 5 Mar 2014 12:43:42 -0500 Sender: netdev-owner@vger.kernel.org List-ID: Has anybody successfuly setup ethernet bonding on a TI AM335x based system using the CPSW in dual standalone emac mode? I am running an active-backup test setup - momentarily still running Linux 3.2 - and experience repeated loss of ethernet connectivity. That happens eg. after the board is idle and receives an own ARP request on the backup slave interface. It seems that the corresponding reply does not reach the CPU and I can see via SysFs that the host's address entry got associated with the external backup port. index 2, raw: 00000000 10000018 31e00669, type: addr(1), addr: 00:18:31:e0:06:69, uctype: persistant(0), port: 0 --> uctype: persistant(0), port: 2 As expected, triggering a unicast from the board or bypassing the ALE recovers the situation. Regards, Christian