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 0B5A6A051A; Thu, 16 Jan 2020 18:54:08 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 58EEE1D52A; Thu, 16 Jan 2020 18:54:07 +0100 (CET) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id DE00B1D169 for ; Thu, 16 Jan 2020 18:54:05 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 16 Jan 2020 09:47:18 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,327,1574150400"; d="scan'208";a="398358035" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.35]) ([10.237.221.35]) by orsmga005.jf.intel.com with ESMTP; 16 Jan 2020 09:47:16 -0800 To: Akhil Goyal , "Ananyev, Konstantin" , dpdk-dev Cc: Thomas Monjalon References: 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] DPDK Release Status Meeting 16/01/2020 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 1/16/2020 4:42 PM, Akhil Goyal wrote: > Hi Konstantin, > >> Hi Akhil, >> >>>>> >>>>> * next-net-crypto >>>>> * Pull request sent >>>>> * There is a performance concern on some ipsec-gw patches, >>>>> they can go in -rc2 if the issue is solved >>>>> * CPU crypto from last release may be breaking ABI, need to confirm >>>> >>>> AFAIK, there is no ABI breakage. >>> >>> This is the output of validate-abi.sh. >>> >>> Change Effect >>> 1 Field sym_cpu_process has been added to this type. 1) This field will >> not be initialized by old clients. >>> 2) Size of the >> inclusive type has been changed. >>> >>> NOTE: this >> field should be accessed only from the new library >>> functions, otherwise it may result in crash or incorrect behavior of applications. >>> 2 Size of this type has been changed from 128 bytes to 136 bytes. The >> fields or parameters of such data type may be incorrectly >>> initialized or accessed by old client applications. >> >> This is struct rte_cryptodev_ops, which is AFAIK, not part of public API. >> So not sure, why do you consider it as ABI breakage? >> > > If this is not an issue, than I am fine with it. The ABI change between cryptodev and PMDs are allowed, that is contained within DPDK and not a user interface [1]. [1] Unless some inline functions are directly accessing the dev_ops, as (unfortunately) done in the ethdev. > >>> >>> Apart from that, IPSEC also has breakage, but that is experimental, so not an >> issue. >>> >>>> >>>>> and discussed dummy variable is missing, may be postponed to next >> release >>>> >>>> Not sure I understand last sentence, could the author explain >>>> what dummy variables we are talking about. >>> >>> In one of the techboard meeting around 19.11 timeframe, during the >> discussion for approving methodology for CPU-crypto, it was >>> proposed that in order to avoid delay, a dummy variable can be introduced in >> cryptodev API/ABI to avoid any ABI breakage in >>> upcoming releases. But this was not done. >> >> Dummy variable for what? >> If you are talking about sym_cpu_process - we just added it into >> rte_cryptodev_ops, instead of >> ' struct rte_cryptodev' instead. >> That way we avoid any ABI breakage without introducing any churn in >> rte_cryptodev itself , see above. > > Then why was there so much resistance on this approach when there is no ABI breakage. > I thought there was ABI breakage because of this change. > > BTW this patchset is a bit late and it came after merge deadline 15 Jan. > Ideally all library related patches should go in RC1. > I would check if I could make it to the RC2. > I have 3 IPSec series to work on before RC2. > > -Akhil >