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 1204CA0471 for ; Wed, 17 Jul 2019 20:21:58 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 00F8C1BE19; Wed, 17 Jul 2019 20:21:57 +0200 (CEST) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id 2598E1BDF0 for ; Wed, 17 Jul 2019 20:21:53 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Jul 2019 11:21:53 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,275,1559545200"; d="scan'208";a="366649874" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.10]) ([10.237.221.10]) by fmsmga005.fm.intel.com with ESMTP; 17 Jul 2019 11:21:51 -0700 To: =?UTF-8?Q?Ga=c3=abtan_Rivet?= , Stephen Hemminger Cc: dev@dpdk.org References: <20190621220824.18073-1-stephen@networkplumber.org> <20190624081558.bsu3j2inahwumlzj@bidouze.vm.6wind.com> <20190624082338.3ddfc6fa@hermes.lan> <20190624162741.3yrlloefjvbibq7z@bidouze.vm.6wind.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190624162741.3yrlloefjvbibq7z@bidouze.vm.6wind.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH] failsafe: skip devargs if not present in secondary 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 6/24/2019 5:27 PM, Gaëtan Rivet wrote: > On Mon, Jun 24, 2019 at 08:23:38AM -0700, Stephen Hemminger wrote: >> On Mon, 24 Jun 2019 10:15:58 +0200 >> Gaëtan Rivet wrote: >> >>> Hello Stephen, >>> >>> On Fri, Jun 21, 2019 at 03:08:24PM -0700, Stephen Hemminger wrote: >>>> When secondary process is run was noticing that the log always >>>> contained complaints about unable to parse devargs. >>>> >>>> It turns out that an empty devargs turns into "" and this >>>> value is not parsable. Change the failsafe secondary to just >>>> skip doing devargs if it empty. >>>> >>> >>> Commit log needs a little rework, a few typos. >>> >>>> Signed-off-by: Stephen Hemminger >>>> --- >>>> drivers/net/failsafe/failsafe.c | 4 ++++ >>>> 1 file changed, 4 insertions(+) >>>> >>>> diff --git a/drivers/net/failsafe/failsafe.c b/drivers/net/failsafe/failsafe.c >>>> index e91c274d8059..04ca0cab0d78 100644 >>>> --- a/drivers/net/failsafe/failsafe.c >>>> +++ b/drivers/net/failsafe/failsafe.c >>>> @@ -364,6 +364,10 @@ rte_pmd_failsafe_probe(struct rte_vdev_device *vdev) >>>> * A sub-device can be plugged later. >>>> */ >>>> FOREACH_SUBDEV(sdev, i, eth_dev) { >>>> + /* skip empty devargs */ >>>> + if (sdev->devargs.name[0] == '\0') >>>> + continue; >>>> + >>> >>> An empty devargs being named "" is part of the internals of rte_devargs. >>> The clean solution would be to add a `bool rte_devargs_empty()` function >>> and test the devargs with it. >>> >>> The simple solution is your proposition. >>> >>> Clean seems a little heavy-handed, but it would be more stable. If you >>> agree, you can add the helper. I'm ok with keeping it simple otherwise. >>> >>>> /* rebuild devargs to be able to get the bus name. */ >>>> ret = rte_devargs_parse(&devargs, >>>> sdev->devargs.name); >>>> -- >>>> 2.20.1 >>>> >>> >> >> Simpler is better. > > Ok is this an ack :) > >> Sorry, after working with failsafe my impression is that it is not >> built with that in mind. >