From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id BC47BA04A2 for ; Thu, 24 Feb 2022 07:28:55 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id AB4C441171; Thu, 24 Feb 2022 07:28:55 +0100 (CET) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by mails.dpdk.org (Postfix) with ESMTP id 6489F4114D; Thu, 24 Feb 2022 07:28:53 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1645684133; x=1677220133; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=7WO5+quISRgeS7QZd1gVd+92BGHbPP3yGHR03YVVFuE=; b=U+o8R9XnOqbmw2zuK8F11kveCNxXMq3gcmocmt7LwEVPC1LjDo970C/m elJvd+6KA4eLnpL9KgK9xEYJkgZ5TZtB4/hT9C2a3Sg0Ae6lSE63Jndvi p3HZNuwyiL30JGDqrsW+tSJtQJvLO5BkHNia6BfuZvyuTFcEMhayi1fU9 MijSCd6D9vq5GSb/kyowZTWgDGVkwbFcBKu5d+F97MauqFv9ZpDOG+b0D 04Y82VgMm+Y8sTKIwV8o1k1H2jAg4YWr2LmLYr+w9iKg2zO+UkXu7m7Dw rSlB93IfW2/zNfsSycyZt0PPwy0ubQtNKw3zC2lzTHvaxrR6MGj0xIm8+ A==; X-IronPort-AV: E=McAfee;i="6200,9189,10267"; a="232783072" X-IronPort-AV: E=Sophos;i="5.88,393,1635231600"; d="scan'208";a="232783072" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Feb 2022 22:28:52 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,393,1635231600"; d="scan'208";a="639609474" Received: from npg-dpdk-xuan-cbdma.sh.intel.com ([10.67.110.228]) by orsmga004.jf.intel.com with ESMTP; 23 Feb 2022 22:28:50 -0800 From: xuan.ding@intel.com To: maxime.coquelin@redhat.com, chenbo.xia@intel.com Cc: dev@dpdk.org, jiayu.hu@intel.com, Xuan Ding , stable@dpdk.org Subject: [PATCH v2] doc: fix vhost multi-queue reconnection Date: Thu, 24 Feb 2022 06:28:03 +0000 Message-Id: <20220224062803.72238-1-xuan.ding@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220221072743.88049-1-xuan.ding@intel.com> References: <20220221072743.88049-1-xuan.ding@intel.com> X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 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 From: Xuan Ding Since QEMU 5.2.0 fixes the vhost multi-queue reconnection issue in commit f66337bdbfda ("vhost-user: save features of multiqueues if chardev is closed"), this patch removes the previous description from known issue. Fixes: b37e95507e1b ("doc: add vhost multi-queue reconnection issue") Cc: stable@dpdk.org Signed-off-by: Xuan Ding --- v2: * Add fixes in commit title and log. --- doc/guides/rel_notes/known_issues.rst | 21 --------------------- 1 file changed, 21 deletions(-) diff --git a/doc/guides/rel_notes/known_issues.rst b/doc/guides/rel_notes/known_issues.rst index 187d9c942e..a8d1401a71 100644 --- a/doc/guides/rel_notes/known_issues.rst +++ b/doc/guides/rel_notes/known_issues.rst @@ -884,24 +884,3 @@ Unsuitable IOVA mode may be picked as the default **Driver/Module**: ALL. - -Vhost multi-queue reconnection failed with QEMU version >= 4.2.0 ----------------------------------------------------------------- - -**Description** - It's a QEMU regression bug (bad commit: c6beefd674ff). QEMU only saves - acked features for one vhost-net when vhost quits. When vhost reconnects - to virtio-net/virtio-pmd in multi-queue situations, the features been - set multiple times are not consistent. - -**Implication** - Vhost cannot reconnect back to virtio-net/virtio-pmd normally. - -**Resolution/Workaround**: - It is possible to filter the incorrect acked features at vhost-user side. - -**Affected Environment/Platform**: - ALL. - -**Driver/Module**: - Virtual Device Poll Mode Driver (PMD). -- 2.17.1