From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Hutchings Subject: Re: [PATCH 1/2] bonding: fix incorrect transmit queue offset Date: Wed, 23 Feb 2011 23:37:49 +0000 Message-ID: <1298504269.2211.503.camel@localhost> References: <1298490169-5224-1-git-send-email-andy@greyhouse.net> <20110223230844.GA16476@linuxace.com> <20110223.151357.245408084.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: kernel@linuxace.com, andy@greyhouse.net, netdev@vger.kernel.org, fubar@us.ibm.com To: David Miller Return-path: Received: from exchange.solarflare.com ([216.237.3.220]:21202 "EHLO exchange.solarflare.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751173Ab1BWXhx (ORCPT ); Wed, 23 Feb 2011 18:37:53 -0500 In-Reply-To: <20110223.151357.245408084.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, 2011-02-23 at 15:13 -0800, David Miller wrote: > From: Phil Oester > Date: Wed, 23 Feb 2011 15:08:44 -0800 > > > On Wed, Feb 23, 2011 at 02:42:49PM -0500, Andy Gospodarek wrote: > >> + * destination queue. Using a helper function skips the a call to > > > > s/the a/a/ or s/the a/the/ > > > >> + while (txq >= dev->real_num_tx_queues) { > >> + /* let the user know if we do not have enough tx queues */ > >> + if (net_ratelimit()) > >> + pr_warning("%s selects invalid tx queue %d. Consider" > >> + " setting module option tx_queues > %d.", > >> + dev->name, txq, dev->real_num_tx_queues); > >> + txq -= dev->real_num_tx_queues; > >> + } > > > > Think this would be better as a WARN_ONCE, as otherwise syslog will still > > get flooded with this - even when ratelimited. See get_rps_cpu in > > net/core/dev.c as an example.o > > Agreed. This shouldn't WARN at all. It is perfectly valid (though non-optimal) to have different numbers of queues on two different multiqueue devices. Ben. -- Ben Hutchings, Senior Software Engineer, Solarflare Communications Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked.