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 6A2BFA04FF; Tue, 14 Jan 2020 13:56:49 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 868F91C1AB; Tue, 14 Jan 2020 13:56:48 +0100 (CET) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id B8B101BFF4 for ; Tue, 14 Jan 2020 13:56:46 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Jan 2020 04:56:45 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,432,1571727600"; d="scan'208";a="248480167" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.35]) ([10.237.221.35]) by fmsmga001.fm.intel.com with ESMTP; 14 Jan 2020 04:56:44 -0800 To: Ajit Khaparde , dev@dpdk.org Cc: Somnath Kotur , 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> 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 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