From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH] drivers/net: remove network drivers' last few uses of IRQF_SAMPLE_RANDOM Date: Thu, 15 May 2008 18:44:22 -0400 Message-ID: <482CBCC6.6010905@garzik.org> References: <20080515142154.0595e475@core> <36D9DB17C6DE9E40B059440DB8D95F52052D71BB@orsmsx418.amr.corp.intel.com> <482C7B18.6060003@garzik.org> <482C7E53.3050300@hp.com> <482C8184.2030906@garzik.org> <482C8550.5000909@intel.com> <482C8D4D.3040702@garzik.org> <20080515214721.GP18825@mit.edu> <482CB1FB.7080807@garzik.org> <20080515222941.GB20976@khazad-dum.debian.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Theodore Tso , Chris Peterson , "Kok, Auke" , Rick Jones , "Brandeburg, Jesse" , Alan Cox , netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: Henrique de Moraes Holschuh Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:54333 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753804AbYEOWox (ORCPT ); Thu, 15 May 2008 18:44:53 -0400 In-Reply-To: <20080515222941.GB20976@khazad-dum.debian.net> Sender: netdev-owner@vger.kernel.org List-ID: Henrique de Moraes Holschuh wrote: > If anyone wants to poke at it, get the Debian rng-tools source package. > It directly supports the VIA PadLock in userspace in a suitably paranoid > mode (checks that the RNG was not reprogrammed at every read), and does > multithreading so that FIPS and output processing does not block (nor > gets blocked) by /dev/hw_random reading, etc. Neat. I always did prefer VIA padlock in userspace. I just sorta assumed a buffering, interrupt-driver TPM RNG driver would be better than doing it from userspace, but maybe that was a bad assumption to make on my part. It should be quite doable to support TPM RNG entirely via userspace, at any rate. Jeff