From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: 31 Aug 2007 09:43:43 -0700 Message-ID: <20070831164343.452.qmail@farnsworth.org> From: "Dale Farnsworth" To: joachim.bader@diehl-aerospace.de, Linuxppc-embedded@ozlabs.org Subject: Re: [linux kernel 2.6.19] ethernet driver for Marvell bridge GT-64260 In-Reply-To: List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > > I am porting linux kernel 2.6.19 on a platform based on PPC750FX together > with a Marvell GT64260. > I use a patched 643xx driver which is back ported to 64260 by Steven J. > Hill. > I have ethernet now up and running, but only if I switch debug on, which > generates a big bunch of screen messages. > As soon as I switch debug off, I get the message "Virtual device %s asks > to queue packet!" on every transmission request. > > This happens on ping an other system. > > Has anyone experience in such an event? Is there anything how I can speed > up performance with the 64260? > Is there a similar problem known with the 64360? No, this does not happen on the mv64360. As I recall, that message occurs when something attempts to queue a packet to a driver that has called netif_stop_queue() but hasn't yet called netif_wake_queue(). I would guess that when you turn debug on, you are changing the driver logic in addition to the timing. -Dale