From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin LaHaise Subject: via-rhine -- VT6105M and checksum offloading Date: Thu, 24 Feb 2011 13:58:05 -0500 Message-ID: <20110224185805.GI30393@kvack.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: netdev@vger.kernel.org Return-path: Received: from kanga.kvack.org ([205.233.56.17]:33897 "EHLO kanga.kvack.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752125Ab1BXTPj (ORCPT ); Thu, 24 Feb 2011 14:15:39 -0500 Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Hi folks, I've recently noticed that one of the embedded systems I'm using (the PCEngines ALIXes) is becoming CPU bound under heavy network traffic. Upon investigation, it looks like the VT6105M isn't actually using the hardware checksum offloading support of the hardware. Are there any known reasons why this isn't enabled (hardware bugs?)? I'll test enabling it in the driver, but I figured it would be worth asking if this path has been explored already. Cheers, -ben