From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85A8DC48BE5 for ; Fri, 21 Jun 2019 09:41:54 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6289720673 for ; Fri, 21 Jun 2019 09:41:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6289720673 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:57466 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1heG3N-0005gx-At for qemu-devel@archiver.kernel.org; Fri, 21 Jun 2019 05:41:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49419) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1heG1z-0004b2-C6 for qemu-devel@nongnu.org; Fri, 21 Jun 2019 05:40:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1heG1t-0002GK-P4 for qemu-devel@nongnu.org; Fri, 21 Jun 2019 05:40:25 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60650) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1heG1q-0002BB-EX for qemu-devel@nongnu.org; Fri, 21 Jun 2019 05:40:19 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 805A4307D970; Fri, 21 Jun 2019 09:40:16 +0000 (UTC) Received: from localhost (ovpn-117-248.ams2.redhat.com [10.36.117.248]) by smtp.corp.redhat.com (Postfix) with ESMTP id 36CE75D9D2; Fri, 21 Jun 2019 09:40:05 +0000 (UTC) From: Stefan Hajnoczi To: Date: Fri, 21 Jun 2019 10:40:01 +0100 Message-Id: <20190621094005.4134-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Fri, 21 Jun 2019 09:40:16 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 0/4] libvhost-user: VHOST_USER_PROTOCOL_F_MQ support X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Michael S. Tsirkin" , "Dr. David Alan Gilbert" , Sebastien Boeuf , Gerd Hoffmann , Stefan Hajnoczi , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Sebastien Boeuf pointed out that libvhost-use= r doesn't advertise VHOST_USER_PROTOCOL_F_MQ. Today this prevents vhost-us= er-net multiqueue from working. In virtio-fs we also want to support multiqueue so I'm sending patches to= add this. It's free to advertise VHOST_USER_PROTOCOL_F_MQ for all devices so= we can do it unconditionally in libvhost-user. Several related improvements are included: Patch 1 - clean up duplicated and risky VhostUserMsg reply building code Patch 2 - remove hardcoded 8 virtqueue limit in libvhost-user Patch 4 - clarify vhost-user multiqueue specification Stefan Hajnoczi (4): libvhost-user: add vmsg_set_reply_u64() helper libvhost-user: support many virtqueues libvhost-user: implement VHOST_USER_PROTOCOL_F_MQ docs: avoid vhost-user-net specifics in multiqueue section contrib/libvhost-user/libvhost-user-glib.h | 2 +- contrib/libvhost-user/libvhost-user.h | 10 +++- contrib/libvhost-user/libvhost-user-glib.c | 12 +++- contrib/libvhost-user/libvhost-user.c | 65 +++++++++++++--------- contrib/vhost-user-blk/vhost-user-blk.c | 16 +++--- contrib/vhost-user-gpu/main.c | 9 ++- contrib/vhost-user-input/main.c | 11 +++- contrib/vhost-user-scsi/vhost-user-scsi.c | 21 +++---- tests/vhost-user-bridge.c | 42 +++++++++----- docs/interop/vhost-user.rst | 21 +++---- 10 files changed, 132 insertions(+), 77 deletions(-) --=20 2.21.0