From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rick Jones Subject: Re: bnx2/5709: Strange interrupts spread Date: Mon, 05 Jul 2010 15:56:24 -0700 Message-ID: <4C326318.8050006@hp.com> References: <1278104311.11828.12.camel@HP1> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: "netdev@vger.kernel.org" To: Christophe Ngo Van Duc Return-path: Received: from g1t0029.austin.hp.com ([15.216.28.36]:22055 "EHLO g1t0029.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752318Ab0GEW40 (ORCPT ); Mon, 5 Jul 2010 18:56:26 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: Christophe Ngo Van Duc wrote: > Is it a requirement that the interface has an IP address for the TX > and RX hash to work? At the risk of typing into Michael's keyboard, chances are, what the NIC does is follow Microsoft's specs for RSS, which as far as I can tell, discusses hashing either just on the IP addresses (v4 or v6) or the IP addresses and TCP port numbers, so unless Broadcom has an enhancement/extension, if the traffic arriving is not TCP/IP and not multiple connections, it probably does not get spread-out. rick jones