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 49EB0A31F3 for ; Fri, 18 Oct 2019 18:54:45 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 1EAB91C0B4; Fri, 18 Oct 2019 18:54:45 +0200 (CEST) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 3940B1BEE5 for ; Fri, 18 Oct 2019 18:54:44 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Oct 2019 09:54:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,312,1566889200"; d="scan'208";a="348136753" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.10]) ([10.237.221.10]) by orsmga004.jf.intel.com with ESMTP; 18 Oct 2019 09:54:41 -0700 To: Tiwei Bie , Andy Pei Cc: dev@dpdk.org, rosen.xu@intel.com, xiaolong.ye@intel.com, xiao.w.wang@intel.com, maxime.coquelin@redhat.com, zhihong.wang@intel.com References: <1568711388-257817-1-git-send-email-andy.pei@intel.com> <1568711388-257817-2-git-send-email-andy.pei@intel.com> <20190923081205.GA29817@___> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v2 2/3] vhost: call vDPA callback at the end of vring enable handler 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 9/23/2019 9:12 AM, Tiwei Bie wrote: > On Tue, Sep 17, 2019 at 05:09:47PM +0800, Andy Pei wrote: >> vDPA's set_vring_state callback would need to know the virtqueues' >> enable status to configure the hardware. >> >> Signed-off-by: Xiaolong Ye >> Signed-off-by: Andy Pei >> --- >> v2: >> add nr_active_vring as a parameter to ops function set_vring_state in >> case of callback in set_vring_state() and avoid exposing new API. >> >> lib/librte_vhost/rte_vdpa.h | 4 ++-- >> lib/librte_vhost/vhost_user.c | 27 +++++++++++++++++++++++++-- >> 2 files changed, 27 insertions(+), 4 deletions(-) >> >> diff --git a/lib/librte_vhost/rte_vdpa.h b/lib/librte_vhost/rte_vdpa.h >> index 9a3deb3..6e55d4d 100644 >> --- a/lib/librte_vhost/rte_vdpa.h >> +++ b/lib/librte_vhost/rte_vdpa.h >> @@ -54,8 +54,8 @@ struct rte_vdpa_dev_ops { >> int (*dev_conf)(int vid); >> int (*dev_close)(int vid); >> >> - /** Enable/disable this vring */ >> - int (*set_vring_state)(int vid, int vring, int state); >> + /** Enable/disable vring queue pairs */ >> + int (*set_vring_state)(int vid, int nr_active_vring); > > We should avoid changing the API/ABI unless we have a very good > justification. > > With the existing API, it should be easy to get the number of > active rings by maintaining a bitmap or something similar in > ifc driver. > > Besides, please keep other maintainers got from get-maintainer.sh > in the Cc list as well. > updating patchset [1] as "Change Requested" based on above comment. [1] https://patches.dpdk.org/user/todo/dpdk/?series=6424&delegate=319&state=*