From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <ferruh.yigit@intel.com> Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 3B7937D22 for <dev@dpdk.org>; Mon, 29 May 2017 16:03:43 +0200 (CEST) Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 29 May 2017 07:03:42 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.38,414,1491289200"; d="scan'208";a="92587133" Received: from fyigit-mobl1.ger.corp.intel.com (HELO [10.237.220.81]) ([10.237.220.81]) by orsmga004.jf.intel.com with ESMTP; 29 May 2017 07:03:40 -0700 To: Gaetan Rivet <gaetan.rivet@6wind.com>, dev@dpdk.org, Bruce Richardson <bruce.richardson@intel.com>, Neil Horman <nhorman@tuxdriver.com>, Thomas Monjalon <thomas@monjalon.net> References: <cover.1495634974.git.gaetan.rivet@6wind.com> <cover.1496065002.git.gaetan.rivet@6wind.com> Cc: Declan Doherty <declan.doherty@intel.com> From: Ferruh Yigit <ferruh.yigit@intel.com> Message-ID: <3dd5db5f-11e3-8d88-fe2f-39b005cd5e64@intel.com> Date: Mon, 29 May 2017 15:03:40 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.1.1 MIME-Version: 1.0 In-Reply-To: <cover.1496065002.git.gaetan.rivet@6wind.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v4 00/12] introduce fail-safe PMD X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <http://dpdk.org/ml/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://dpdk.org/ml/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <http://dpdk.org/ml/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> X-List-Received-Date: Mon, 29 May 2017 14:03:44 -0000 On 5/29/2017 2:42 PM, Gaetan Rivet wrote: > This PMD intercepts and manages Ethernet device removal events issued by > slave PMDs and re-initializes them transparently when brought back so that > existing applications do not need to be modified to benefit from true > hot-plugging support. > > The stacked PMD approach shares many similarities with the bonding PMD but > with a different purpose. While bonding provides the ability to group > several links into a single logical device for enhanced throughput and > supports fail-over at link level, this one manages the sudden disappearance > of the underlying device; it guarantees applications face a valid device in > working order at all times. > > Each fail-safe instance is configured to run atop one or several > devices, with one defined as the preferred device. Hot-plug events are > handled on all of them, and Tx is always directed to the preferred device > if present or to the next available failover device (Rx is always performed > on all devices for simplicity). > > Moreover, the configured slaves (preferred or failover) do not need to be > present at initialization time and may appear later. > > Slaves configuration is continuously synchronized with that of the virtual > device, which exposes their common set of capabilities to the application. > Failure to apply the current configuration state to a slave for any reason > simply reschedules its initialization. > > This patchset depends on: > > eal: complete attach / detach support > http://dpdk.org/ml/archives/dev/2017-May/066366.html > http://dpdk.org/dev/patchwork/patch/24522/ > > ethdev: add flow API rule copy function > http://dpdk.org/ml/archives/dev/2017-May/066145.html > http://dpdk.org/dev/patchwork/patch/24406/ > > ethdev: add isolated mode to flow API > http://dpdk.org/ml/archives/dev/2017-April/064327.html > http://dpdk.org/dev/patchwork/patch/23741/ > > v1 --> v2: > > - Wrote documentation > - Fixed commit logs, signed-off-by > - Added LSC event support > - A few minor fixes > > v2 --> v3: > > - Numerous bug fixes. > - Complete sub-EAL rework to follow new bus API. > - burst protection on sub removal. > - more flexible sub definition. > - flow isolated mode support. > > v3 --> v4: > > - Split back commits > net/failsafe: add fast burst functions > net/failsafe: support device removal > That were squashed by error during a rebase > - Fix segfault on port plugin > - Fix isolate mode support for MLX4 ports plugin > > Gaetan Rivet (12): > ethdev: save VLAN filter setting > ethdev: add deferred intermediate device state > ethdev: count devices consistently > net/failsafe: add fail-safe PMD > net/failsafe: add plug-in support > net/failsafe: add flexible device definition > net/failsafe: support flow API > net/failsafe: support offload capabilities > net/failsafe: add fast burst functions > net/failsafe: support device removal > net/failsafe: support link status change event > net/failsafe: support flow API isolation mode Bruce, Neil, Any comment on to the latest version of the PMD? Thomas, Should this discussed in the tech-board, again for this release? Thanks, ferruh