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 6615DA0542; Thu, 13 Feb 2020 16:15:13 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id AB4021C021; Thu, 13 Feb 2020 16:15:12 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 030461C01F for ; Thu, 13 Feb 2020 16:15:10 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Feb 2020 07:15:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,437,1574150400"; d="scan'208";a="238058573" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.20]) ([10.237.221.20]) by orsmga006.jf.intel.com with ESMTP; 13 Feb 2020 07:15:07 -0800 To: Thomas Monjalon , dev@dpdk.org Cc: matan@mellanox.com, Wenzhuo Lu , Jingjing Wu , Bernard Iremonger References: <20200213145024.1022480-1-thomas@monjalon.net> 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] app/testpmd: add port check before manual detach 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 2/13/2020 2:50 PM, Thomas Monjalon wrote: > User may try to run "port detach " > for an already detached device. > It has been decided to protect from such usage in testpmd, > so a check was added to detach_port_device() in DPDK 19.11. > This check might be removed to allow hotplug path detaching > the device of a closed port. > Whatever will be decided in future, this check is also added > before the call to detach_port_device(). > > Signed-off-by: Thomas Monjalon > --- > app/test-pmd/cmdline.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c > index de7a695d74..99e4168103 100644 > --- a/app/test-pmd/cmdline.c > +++ b/app/test-pmd/cmdline.c > @@ -1497,10 +1497,12 @@ static void cmd_operate_detach_port_parsed(void *parsed_result, > { > struct cmd_operate_detach_port_result *res = parsed_result; > > - if (!strcmp(res->keyword, "detach")) > + if (!strcmp(res->keyword, "detach")) { > + RTE_ETH_VALID_PORTID_OR_RET(res->port_id); What do you think adding a comment to say this is a workaround for: a) closed() ports can be re-used b) fix problem in double detach when pointers are not cleared properly in the first pass and this workaround should be removed when above fixed? To give some hint to the future us why we are preventing closed ports to be detached. > detach_port_device(res->port_id); > - else > + } else { > printf("Unknown parameter\n"); > + } > } > > cmdline_parse_token_string_t cmd_operate_detach_port_port = >