From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by dpdk.org (Postfix) with ESMTP id 747B35F2D for ; Thu, 28 Jun 2018 11:20:16 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 Jun 2018 02:20:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,282,1526367600"; d="scan'208";a="67998518" Received: from aburakov-mobl.ger.corp.intel.com (HELO [10.237.220.28]) ([10.237.220.28]) by fmsmga001.fm.intel.com with ESMTP; 28 Jun 2018 02:20:08 -0700 To: Qi Zhang , thomas@monjalon.net Cc: konstantin.ananyev@intel.com, dev@dpdk.org, bruce.richardson@intel.com, ferruh.yigit@intel.com, benjamin.h.shelton@intel.com, narender.vangati@intel.com References: <20180607123849.14439-1-qi.z.zhang@intel.com> <20180628015247.42232-1-qi.z.zhang@intel.com> <20180628015247.42232-5-qi.z.zhang@intel.com> From: "Burakov, Anatoly" Message-ID: Date: Thu, 28 Jun 2018 10:20:07 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <20180628015247.42232-5-qi.z.zhang@intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v6 04/19] ethdev: introduce device lock X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Jun 2018 09:20:16 -0000 On 28-Jun-18 2:52 AM, Qi Zhang wrote: > Introduce API rte_eth_dev_lock and rte_eth_dev_unlock to let > application lock or unlock on specific ethdev, a locked device > can't be detached, this help applicaiton to prevent unexpected > device detaching, especially in multi-process envrionment. > > Aslo introduce the new API rte_eth_dev_lock_with_callback and > rte_eth_dev_unlock_with callback to let application to register > a callback function which will be invoked before a device is going > to be detached, the return value of the function will decide if > device will continue be detached or not, this support application > to do condition check at runtime. > > Signed-off-by: Qi Zhang > --- New API's should be added to .map file. Otherwise, Reviewed-by: Anatoly Burakov -- Thanks, Anatoly