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 0669CA0093 for ; Tue, 19 May 2020 09:21:44 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id D00D11D5B6; Tue, 19 May 2020 09:21:43 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id C796E1D177; Tue, 19 May 2020 09:21:38 +0200 (CEST) IronPort-SDR: u/mN2mZT7LbzQVaMVd6m/5/QlOMCznpH3kEUGmiDgA81sfcZYMWUfgd/m9LML8qmav1ShncE7Z XPeQAnjtuwwg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 May 2020 00:21:37 -0700 IronPort-SDR: BK3T96WkEIWti/iQIVao07DwkX6kCs7bdI3RFswRuozW9KXwgzYTz3JCllIyaKDfkY2demVBh2 Pk2gOm9Qk65g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,409,1583222400"; d="scan'208";a="264216715" Received: from yexl-server.sh.intel.com (HELO localhost) ([10.67.116.183]) by orsmga003.jf.intel.com with ESMTP; 19 May 2020 00:21:35 -0700 Date: Tue, 19 May 2020 15:13:04 +0800 From: Ye Xiaolong To: Xuan Ding , Ferruh Yigit Cc: maxime.coquelin@redhat.com, zhihong.wang@intel.com, dev@dpdk.org, stable@dpdk.org Message-ID: <20200519071304.GE38911@intel.com> References: <20200512095155.98708-1-xuan.ding@intel.com> <20200513021410.98031-1-xuan.ding@intel.com> <20200519062825.GD38911@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200519062825.GD38911@intel.com> User-Agent: Mutt/1.9.4 (2018-02-28) Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH v2] vhost: fix zero-copy cannot be enabled X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" Hi, Maxime & Ferruh This patch is used to fix the regression caused by commit 715070ea10e6 ("vhost: prevent zero-copy with incompatible client mode") which was introduced in RC2, I think we should get it in this release. Thanks, Xiaolong On 05/19, Ye Xiaolong wrote: >On 05/13, Xuan Ding wrote: >>This patch fixes the situation where vhost-user cannot start as server with >>dequeue_zero_copy enabled. >> >>Using flag instead of vsocket->is_server to determine whether vhost-user is >>in client mode. Because vsocket->is_server is not ready at this time. >> >>Cc: stable@dpdk.org > >Fixes: 715070ea10e6 ("vhost: prevent zero-copy with incompatible client mode") > >And no need to cc stable since above commit is introduced in this release. > >> >>Signed-off-by: Xuan Ding >>--- >> >>v2: >>* Added the description of problem solved in commit log. >>--- >> lib/librte_vhost/socket.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >>diff --git a/lib/librte_vhost/socket.c b/lib/librte_vhost/socket.c >>index bb8d0d780..0a66ef976 100644 >>--- a/lib/librte_vhost/socket.c >>+++ b/lib/librte_vhost/socket.c >>@@ -926,7 +926,7 @@ rte_vhost_driver_register(const char *path, uint64_t flags) >> ret = -1; >> goto out_mutex; >> } >>- if (!vsocket->is_server) { >>+ if ((flags & RTE_VHOST_USER_CLIENT) != 0) { >> VHOST_LOG_CONFIG(ERR, >> "error: zero copy is incompatible with vhost client mode\n"); >> ret = -1; >>-- >>2.17.1 >> > >Reviewed-by: Xiaolong Ye