From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Monjalon Subject: Re: [PATCH v2 1/2] doc: add bifurcated driver guide on ixgbe nic Date: Fri, 08 Jul 2016 11:14:13 +0200 Message-ID: <367000689.y0psKNqMLI@xps13> References: <1466650946-22523-1-git-send-email-jingjing.wu@intel.com> <2397257.zo8BvNnhcC@xps13> <9BB6961774997848B5B42BEC655768F80E169131@SHSMSX103.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: dev@dpdk.org, "Mcnamara, John" , "Liu, Yong" , "Zhang, Helin" , bernard.iremonger@intel.com To: "Wu, Jingjing" Return-path: Received: from mail-wm0-f44.google.com (mail-wm0-f44.google.com [74.125.82.44]) by dpdk.org (Postfix) with ESMTP id 347CD58CF for ; Fri, 8 Jul 2016 11:14:15 +0200 (CEST) Received: by mail-wm0-f44.google.com with SMTP id k123so8983225wme.0 for ; Fri, 08 Jul 2016 02:14:15 -0700 (PDT) In-Reply-To: <9BB6961774997848B5B42BEC655768F80E169131@SHSMSX103.ccr.corp.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" 2016-07-08 08:42, Wu, Jingjing: > From: Thomas Monjalon [mailto:thomas.monjalon@6wind.com] > > Thank you for providing more doc. > > I am just not convinced it is the right place > > and it must be discussed. > > Some questions below to help deciding where it must be. > > > > 2016-06-23 11:02, Jingjing Wu: > > > Bifurcated driver is a mechanism which depends the advanced > > > Ethernet device to split traffic between queues. It provides > > > the capability to let the kernel driver and DPDK driver co-exist > > > and take their advantage. > > > > The name "bifurcated driver" was used for a real driver proposal > > in Linux. I don't think it applies here. Where does the "bifurcated" name come from? Could we rename it to "flow bifurcation" or "partial kernel bypass"? > > > It is achieved by using SRIOV and NIC's advanced filtering. This > > > patch describes it and adds the user guide on ixgbe NICs. > > > > It is not a DPDK feature, just a use case. > > What do we learn about DPDK? > > Yes, it is an feature in Linux driver. And the typical use case how DPDK co-work with Linux networking. > I think it will be a good reference. When I preparde this patch, I'm also doubt where to put, and the behavior > may be NIC specific, so I added it here. > > Any other suggestion? Bernard is creating an howto section.