Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761409Ab0GUTft (ORCPT ); Wed, 21 Jul 2010 15:35:49 -0400 Received: from mga09.intel.com ([134.134.136.24]:3120 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758916Ab0GUTfq convert rfc822-to-8bit (ORCPT ); Wed, 21 Jul 2010 15:35:46 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.55,239,1278313200"; d="scan'208";a="640508272" From: "Rose, Gregory V" To: David Miller CC: "leedom@chelsio.com" , "shemminger@vyatta.com" , "andy@greyhouse.net" , "harald@redhat.com" , "bhutchings@solarflare.com" , "sassmann@redhat.com" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "gospo@redhat.com" , "Duyck, Alexander H" Date: Wed, 21 Jul 2010 12:35:36 -0700 Subject: RE: [PATCH net-next] sysfs: add entry to indicate network interfaces with random MAC address Thread-Topic: [PATCH net-next] sysfs: add entry to indicate network interfaces with random MAC address Thread-Index: AcspC4y5HOzo7y+6TwybzqSVS0/NOwAAECEQ Message-ID: <43F901BD926A4E43B106BF17856F0755F1846287@orsmsx508.amr.corp.intel.com> References: <20100721.114851.200597269.davem@davemloft.net> <20100721.115023.69942880.davem@davemloft.net> <43F901BD926A4E43B106BF17856F0755F1846247@orsmsx508.amr.corp.intel.com> <20100721.123324.237334251.davem@davemloft.net> In-Reply-To: <20100721.123324.237334251.davem@davemloft.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1805 Lines: 47 >-----Original Message----- >From: David Miller [mailto:davem@davemloft.net] >Sent: Wednesday, July 21, 2010 12:33 PM >To: Rose, Gregory V >Cc: leedom@chelsio.com; shemminger@vyatta.com; andy@greyhouse.net; >harald@redhat.com; bhutchings@solarflare.com; sassmann@redhat.com; >netdev@vger.kernel.org; linux-kernel@vger.kernel.org; gospo@redhat.com; >Duyck, Alexander H >Subject: Re: [PATCH net-next] sysfs: add entry to indicate network >interfaces with random MAC address > >From: "Rose, Gregory V" >Date: Wed, 21 Jul 2010 12:02:17 -0700 > >>>From: David Miller >>>Date: Wed, 21 Jul 2010 11:48:51 -0700 (PDT) >>> >>>> You could do things like have the PF controller use the root >>>filesystem >>>> ID label to construct the VF's MAC address, or something like that. >>> >>>And here I of course mean the root filesystem of the guest the VF will >>>be given to. >> >> I suppose you could do that but then the VM is going to have to be >> allowed to set its own MAC address. There is a lot of opposition >> and concern about allowing VMs to set their own MAC address. > >Why would that be necessary? The host with the PF creating the guest >has access to the "device" and thus the root filesystem of the guest, >and thus could pull in the root filesystem "key" and instantiate the >VF's MAC before booting the guest. > >That was the idea, the control node sets up the VF MAC before the guest >boots or can have access to the VF device. I misunderstood you. My bad. Thank for the further explanation. - Greg -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/