From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id E22B32BD5 for ; Tue, 13 Nov 2018 10:40:47 +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 orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Nov 2018 01:40:47 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,498,1534834800"; d="scan'208";a="90717904" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.79]) ([10.237.221.79]) by orsmga006.jf.intel.com with ESMTP; 13 Nov 2018 01:40:45 -0800 To: "Lu, Wenzhuo" , Andrew Rybchenko , "dev@dpdk.org" References: <1531373220-42150-1-git-send-email-wenzhuo.lu@intel.com> <1541642954-37497-1-git-send-email-wenzhuo.lu@intel.com> <1541642954-37497-2-git-send-email-wenzhuo.lu@intel.com> <3b646bb3-0fd6-efda-6508-93f39d6af5f6@solarflare.com> <6A0DE07E22DDAD4C9103DF62FEBC09093FDFC53D@shsmsx102.ccr.corp.intel.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 MIME-Version: 1.0 In-Reply-To: <6A0DE07E22DDAD4C9103DF62FEBC09093FDFC53D@shsmsx102.ccr.corp.intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v3 2/2] ethdev: device configuration enhancement 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: Tue, 13 Nov 2018 09:40:48 -0000 On 11/13/2018 12:46 AM, Lu, Wenzhuo wrote: > Hi Ferruh, > > >> -----Original Message----- >> From: Yigit, Ferruh >> Sent: Saturday, November 10, 2018 5:10 AM >> To: Andrew Rybchenko ; Lu, Wenzhuo >> ; dev@dpdk.org >> Subject: Re: [dpdk-dev] [PATCH v3 2/2] ethdev: device configuration >> enhancement >> >> On 11/8/2018 6:25 AM, Andrew Rybchenko wrote: >>> On 11/8/18 5:09 AM, Wenzhuo Lu wrote: >>>> The new configuration is stored during the process. >>>> But the process may fail. We better rolling the configuration back as >>>> the new one doesn't take effect. >>>> >>>> Signed-off-by: Wenzhuo Lu >>> >>> I would say that the order is wrong. We should fix this bug first and >>> the changeset should have appropriate Fixes tags. >>> I think this bug is older and should be fixed first. >>> Then the second bug should be fixed without this one present. >> >> Logically suggested order make sense I agree, but both patches are fixing >> defect and order won't help backporting them [1], so no strong opinion >> about order. >> >> Overall this patch should be converted into fix defect with proper Fixes tag >> independent from order. >> >> Wenzhuo, what do you think? I would like to get this one for rc3! >> >> >> [1] >> This is older defect but I believe can't be backported cleanly into older stable >> trees because of "PMD-tuned Tx/Rx parameters" patches in the middle. >> Downside having this first prevents other patch to backported to closer >> stable trees. >> >> Also having this patch first will require additional return value update in >> some checks (nb_tx_q && nb_rx_q checks) in next patch, so for separation >> fixes this order is clearer. > Yes, to my opinion, these 2 are separate patches. Actually there's no order between them. I put them together only because we have had a mixed discussion. Yes they are not depends each other. Thinking twice adding first patch will leave the code in a state more open the defect fixed in second patch. But by fixing defect first second fix can be applied without having that open. I will send a new version of the set. > I didn't put a fix prefix because it's hard to add a fix tag for it. We know it has the problem from the beginning, so after some changes this patch cannot be backported. >