From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [patch net-next v3 0/9] Introduce devlink interface and first drivers to use it Date: Tue, 01 Mar 2016 16:08:09 -0500 (EST) Message-ID: <20160301.160809.1004237629125677684.davem@davemloft.net> References: <1456504351-18871-1-git-send-email-jiri@resnulli.us> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, idosch@mellanox.com, eladr@mellanox.com, yotamg@mellanox.com, ogerlitz@mellanox.com, yishaih@mellanox.com, dledford@redhat.com, sean.hefty@intel.com, hal.rosenstock@gmail.com, eugenia@mellanox.com, roopa@cumulusnetworks.com, nikolay@cumulusnetworks.com, hadarh@mellanox.com, jhs@mojatatu.com, john.fastabend@gmail.com, jeffrey.t.kirsher@intel.com, brouer@redhat.com, ivecera@redhat.com, rami.rosen@intel.com, hannes@stressinduktion.org, gospo@cumulusnetworks.com To: jiri@resnulli.us Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:41684 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753007AbcCAVIN (ORCPT ); Tue, 1 Mar 2016 16:08:13 -0500 In-Reply-To: <1456504351-18871-1-git-send-email-jiri@resnulli.us> Sender: netdev-owner@vger.kernel.org List-ID: From: Jiri Pirko Date: Fri, 26 Feb 2016 17:32:22 +0100 > There a is need for some userspace API that would allow to expose things > that are not directly related to any device class like net_device of > ib_device, but rather chip-wide/switch-ASIC-wide stuff. > > Use cases: > 1) get/set of port type (Ethernet/InfiniBand) > 2) setting up port splitters - split port into multiple ones and squash again, > enables usage of splitter cable > 3) setting up shared buffers - shared among multiple ports within > one chip (work in progress) > 4) configuration of switch wide properties - resources division etc - This will > allow to pass configuration that is unacceptable to be passed as > a module option. > > First patch of this set introduces a new generic Netlink based interface, > called "devlink". It is similar to nl80211 model and it is heavily > influenced by it, including the API definition. The devlink introduction patch > implements use cases 1) and 2). Other 2 are in development atm and will > be addressed by follow-ups. > > It is very convenient for drivers to use devlink, as you can see in other > patches in this set. > > Counterpart for devlink is userspace tool for now called "dl". Command line > interface and outputs are derived from "ip" tool so it should be easy > for users to get used to it. > > It is available here as a standalone tool for now: > https://github.com/jpirko/devlink > After this is merge in kernel, I will include the "dl" or "devlink" tool > into iproute2 toolset. ... Series applied, thanks Jiri.