From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [RFC 0/2] slow data path communication between DPDK port and Linux Date: Fri, 22 Jan 2016 18:15:40 +0100 Message-ID: <8078914.bEBONouQDl@xps13> References: <1453478442-23000-1-git-send-email-ferruh.yigit@intel.com> <1881890.o9IDb9bZGc@xps13> <20160122165615.GA31579@sivlogin002.ir.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: dev@dpdk.org To: Ferruh Yigit Return-path: Received: from mail-wm0-f51.google.com (mail-wm0-f51.google.com [74.125.82.51]) by dpdk.org (Postfix) with ESMTP id EF5FD5A44 for ; Fri, 22 Jan 2016 18:16:41 +0100 (CET) Received: by mail-wm0-f51.google.com with SMTP id b14so142777678wmb.1 for ; Fri, 22 Jan 2016 09:16:41 -0800 (PST) In-Reply-To: <20160122165615.GA31579@sivlogin002.ir.intel.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 2016-01-22 16:56, Ferruh Yigit: > On Fri, Jan 22, 2016 at 05:31:45PM +0100, Thomas Monjalon wrote: > > Hi Ferruh, > > > > Not commenting the implementation, just the method. > > > > 2016-01-22 16:00, Ferruh Yigit: > > > This is slow data path communication implementation based on existing KNI. > > > Difference is: librte_kni converted into a PMD, kdp kernel module is almost > > > same except all control path functionality removed and some simplification done. > > > > Is there a chance to submit such kernel module on LKML instead of DPDK? > > We should avoid maintaining some out-of-tree modules. > > The ones I have sent are not generic enough to be in Linux tree. I've not read the details. What is missing to be generic? > We already maintain kni kernel module, Yes it is painful and not accepted in some Linux distros. > these patches are part of effort to make > kni more maintainable, by separation of concerns, removing network drivers from it, > and simplifying some of code. Your patch is not removing KNI unfortunately ;) > For this patch set, tun/tap interface can be alternative, and it looks like it > removes out-of-tree kernel module requirement, unless people want current > FIFO implementation because of better performance. > > For control path, unfortunately I am not aware of any solution without out-of-tree > kernel module support. > > Thanks, > ferruh