From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: Q on netfront/netback driver Date: Mon, 1 Feb 2010 12:37:14 -0500 Message-ID: <20100201173714.GA26825@phenom.dumpdata.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: ravi kerur Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Sun, Jan 31, 2010 at 08:29:04AM -0800, ravi kerur wrote: > Hello all, > > I am trying to understand when and how netback and netfront drivers gets > instantiated and does netfront exist in domU's? I would recommend you look in the source code to understand its handshake mechanism. Or better yet, pick up the 'Definitive Guide to the Xen hypervisor". Netfront will exist in DomU's if it is compiled in or as a module depending on the distro. > > I do see the drivers available in following directory in dom0 but nothing in > domU... > > $ pwd > /lib/modules/2.6.18-128.1.6.el5.xs5.5.0.496.1012xen/kernel/drivers/xen > > $ ls > pciback scsiback scsifront sfc_netback sfc_netfront sfc_netutil > tpmback > > However, I do not see the drivers listed when "lsmod" is executed on dom0 or > domU. It might be very well compiled in, at which point it is not a module. Look in your .config file for NETBACK. > > Inputs appreciated. > > Thanks > -RK > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel