From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id 7C7D5914 for ; Sun, 5 Mar 2017 12:42:38 +0100 (CET) Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Mar 2017 03:42:37 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.35,247,1484035200"; d="scan'208";a="72389929" Received: from fyigit-mobl1.ger.corp.intel.com (HELO [10.254.188.125]) ([10.254.188.125]) by fmsmga005.fm.intel.com with ESMTP; 05 Mar 2017 03:42:35 -0800 To: Qi Zhang , jing.d.chen@intel.com References: <20170303031727.461-1-qi.z.zhang@intel.com> <20170303031727.461-18-qi.z.zhang@intel.com> Cc: helin.zhang@intel.com, dev@dpdk.org From: Ferruh Yigit Message-ID: <96af9d6a-34b7-a239-856c-2b09355fc8d7@intel.com> Date: Sun, 5 Mar 2017 11:42:34 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1 MIME-Version: 1.0 In-Reply-To: <20170303031727.461-18-qi.z.zhang@intel.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH 17/17] net/fm10k/base: equest reset when mbx->state changes 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: Sun, 05 Mar 2017 11:42:39 -0000 On 3/3/2017 3:17 AM, Qi Zhang wrote: patch title: s/equest/request > Multiple IES API resets can cause a race condition where the mailbox > interrupt request bits can be cleared before being handled. This can > leave certain mailbox messages from the PF to be untreated and the PF > will enter in some inactive state. If this situation occurs, the IES API > will initiate a mailbox version reset which, then, trigger a mailbox > state change. Once this mailbox transition occurs (from OPEN to CONNECT > state), a request for reset will be returned. > > Signed-off-by: Qi Zhang <...>