From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH] NET: Multiqueue network device support. Date: Tue, 12 Jun 2007 18:01:27 -0400 Message-ID: <466F17B7.2020600@garzik.org> References: <466F0D78.7090404@candelatech.com> <20070612.142658.45082832.davem@davemloft.net> <466F142C.4040109@garzik.org> <20070612.145348.22503996.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: greearb@candelatech.com, netdev@vger.kernel.org, kaber@trash.net, hadi@cyberus.ca, peter.p.waskiewicz.jr@intel.com, auke-jan.h.kok@intel.com To: David Miller Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:58764 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751713AbXFLWBb (ORCPT ); Tue, 12 Jun 2007 18:01:31 -0400 In-Reply-To: <20070612.145348.22503996.davem@davemloft.net> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org David Miller wrote: > From: Jeff Garzik > Date: Tue, 12 Jun 2007 17:46:20 -0400 > >> Not quite... You'll have to deal with multiple Rx filters, not just the >> current one-filter-for-all model present in today's NICs. Pools of >> queues will have separate configured characteristics. The "steer" >> portion you mention is a bottleneck that wants to be eliminated. > > It runs in hardware at wire speed, what's the issue? :-) Configuration is the issue. Where shall we put the configuration machinery, to support sub-queues? Shall we duplicate the existing configuration code for sub-queues? What will ifconfig/ip usage look like? How will it differ from configuring full net_devices, if you are assigning the same types of parameters? Why? Jeff