From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 8B956A0352; Thu, 16 Jan 2020 12:20:42 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id B0F551C21B; Thu, 16 Jan 2020 12:20:41 +0100 (CET) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 951171C219 for ; Thu, 16 Jan 2020 12:20:39 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Jan 2020 03:20:38 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,326,1574150400"; d="scan'208";a="257306361" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.35]) ([10.237.221.35]) by fmsmga002.fm.intel.com with ESMTP; 16 Jan 2020 03:20:37 -0800 To: Somnath Kotur Cc: Ajit Khaparde , dev , Kalesh Anakkur Purayil References: <20200113050118.28719-1-kalesh-anakkur.purayil@broadcom.com> <20200114051435.46093-1-ajit.khaparde@broadcom.com> <20200114051435.46093-10-ajit.khaparde@broadcom.com> <724362fa-c88f-262b-055c-d117a6aebac6@intel.com> From: Ferruh Yigit Autocrypt: addr=ferruh.yigit@intel.com; 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charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH v3 09/10] net/bnxt: release port upon close 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 1/14/2020 2:49 PM, Somnath Kotur wrote: > Ferruh, > Will recheck and revert on Hi Ajit, this is blocking the next-net-brcm tree to be pulled. Would you want to drop this patch from your tree and continue with merge and deal with this patch later? Or if this patch is the critical for the series I can keep waiting. Thanks, ferruh > > Thanks > Som > > On Tue, 14 Jan 2020, 18:26 Ferruh Yigit, > wrote: > > On 1/14/2020 5:14 AM, Ajit Khaparde wrote: > > From: Somnath Kotur > > > > > Set RTE_ETH_DEV_CLOSE_REMOVE upon probe so all the private resources > > for the port can be freed by rte_eth_dev_close(). > > > > Signed-off-by: Somnath Kotur > > > Reviewed-by: Kalesh Anakkur Purayil > > > Reviewed-by: Ajit Khaparde > > > --- > >  drivers/net/bnxt/bnxt_ethdev.c | 5 +++++ > >  1 file changed, 5 insertions(+) > > > > diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c > > index ba3f0a7d9..8acfade5f 100644 > > --- a/drivers/net/bnxt/bnxt_ethdev.c > > +++ b/drivers/net/bnxt/bnxt_ethdev.c > > @@ -4856,6 +4856,11 @@ bnxt_dev_init(struct rte_eth_dev *eth_dev) > >       if (rc) > >               goto error_free; > >  > > +     /* Pass the information to the rte_eth_dev_close() that it should also > > +      * release the private port resources. > > +      */ > > +     eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE; > > + > > When you give this flag, 'rte_eth_dev_close()' will release port resources, it > will memset the 'eth_dev->data'. > > In case user first closed the port, later removed it, remove path should be safe > for it. I can see 'bnxt_dev_uninit()' operates on the values of 'eth_dev->data' > which should crash in this case. > > Can you please double check the return path, all following should be safe: > - close the port > - remove the port > - close and remove the port >