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 A160CA2EFC for ; Tue, 15 Oct 2019 17:40:23 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 124B81EC99; Tue, 15 Oct 2019 17:40:22 +0200 (CEST) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 0B0591BED7 for ; Tue, 15 Oct 2019 17:40:19 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 15 Oct 2019 08:40:18 -0700 X-IronPort-AV: E=Sophos;i="5.67,300,1566889200"; d="scan'208";a="189380507" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.10]) ([10.237.221.10]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/AES256-SHA; 15 Oct 2019 08:40:16 -0700 To: vattunuru@marvell.com, dev@dpdk.org Cc: thomas@monjalon.net, jerinj@marvell.com, olivier.matz@6wind.com, ferruh.yigit@intel.com, anatoly.burakov@intel.com, arybchenko@solarflare.com, kirankumark@marvell.com References: <20190729121313.30639-2-vattunuru@marvell.com> <20190816061252.17214-1-vattunuru@marvell.com> <20190816061252.17214-4-vattunuru@marvell.com> From: "Yigit, Ferruh" Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@linux.intel.com; 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charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH v10 3/5] kni: add app specific mempool create and free routines 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 8/16/2019 7:12 AM, vattunuru@marvell.com wrote: > From: Vamsi Attunuru > > When KNI operates in IOVA = VA mode, it requires mbuf memory > to be physically contiguous to ensure KNI kernel module could > translate IOVA addresses properly. Patch adds a KNI specific > mempool create routine to populate the KNI packet mbuf pool > with memory objects that are being on a page. > > KNI applications need to use this mempool create & free routines > so that mbuf related requirements in IOVA = VA mode are handled > inside those routines based on the enabled mode. > > Updated the release notes with these new routine details. > > Signed-off-by: Vamsi Attunuru <...> > @@ -975,7 +975,7 @@ main(int argc, char** argv) > rte_exit(EXIT_FAILURE, "Could not parse input parameters\n"); > > /* Create the mbuf pool */ > - pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", NB_MBUF, > + pktmbuf_pool = rte_kni_pktmbuf_pool_create("mbuf_pool", NB_MBUF, This sample application is in our control but what about user applications? If this is a must to switch to this API I think it should be at least documented in the KNI documentation. > MEMPOOL_CACHE_SZ, 0, MBUF_DATA_SZ, rte_socket_id()); > if (pktmbuf_pool == NULL) { > rte_exit(EXIT_FAILURE, "Could not initialise mbuf pool\n"); > @@ -1043,6 +1043,9 @@ main(int argc, char** argv) > continue; > kni_free_kni(port); > } > + > + rte_kni_pktmbuf_pool_free(pktmbuf_pool); > + > for (i = 0; i < RTE_MAX_ETHPORTS; i++) > if (kni_port_params_array[i]) { > rte_free(kni_port_params_array[i]); > diff --git a/lib/librte_kni/Makefile b/lib/librte_kni/Makefile > index ab15d10..5e3dd01 100644 > --- a/lib/librte_kni/Makefile > +++ b/lib/librte_kni/Makefile > @@ -6,6 +6,7 @@ include $(RTE_SDK)/mk/rte.vars.mk > # library name > LIB = librte_kni.a > > +CFLAGS += -DALLOW_EXPERIMENTAL_API Can you please list the experimental APIs called that requires this flag as commented, same for meson. This is to help how to know this flag later. <...> > @@ -20,4 +20,6 @@ EXPERIMENTAL { > global: > > rte_kni_update_link; > + rte_kni_pktmbuf_pool_create; > + rte_kni_pktmbuf_pool_free; Can you please add comment on which DPDK version these APIs added, like done is "lib/librte_eal/rte_eal_version.map" > }; >