From patchwork Thu Nov 24 03:20:59 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wang, Wei W" X-Patchwork-Id: 9444731 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6A65360235 for ; Thu, 24 Nov 2016 03:25:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 613FE276D6 for ; Thu, 24 Nov 2016 03:25:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5510527D9B; Thu, 24 Nov 2016 03:25:10 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id DC3FB276D6 for ; Thu, 24 Nov 2016 03:25:09 +0000 (UTC) Received: from localhost ([::1]:37700 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c9keq-00053K-TF for patchwork-qemu-devel@patchwork.kernel.org; Wed, 23 Nov 2016 22:25:08 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55125) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c9kam-0002Ic-JI for qemu-devel@nongnu.org; Wed, 23 Nov 2016 22:20:57 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c9kal-0005DW-K9 for qemu-devel@nongnu.org; Wed, 23 Nov 2016 22:20:56 -0500 Received: from mga05.intel.com ([192.55.52.43]:7824) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c9kal-0005Bk-Aj for qemu-devel@nongnu.org; Wed, 23 Nov 2016 22:20:55 -0500 Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga105.fm.intel.com with ESMTP; 23 Nov 2016 19:20:55 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,690,1473145200"; d="scan'208";a="34962173" Received: from devel-ww.sh.intel.com ([10.239.48.106]) by orsmga005.jf.intel.com with ESMTP; 23 Nov 2016 19:20:53 -0800 From: Wei Wang To: marcandre.lureau@gmail.com, mst@redhat.com, stefanha@redhat.com, pbonzini@redhat.com, qemu-devel@nongnu.org, virtio-comment@lists.oasis-open.org Date: Wed, 23 Nov 2016 22:20:59 -0500 Message-Id: <1479957659-141601-5-git-send-email-wei.w.wang@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1479957659-141601-1-git-send-email-wei.w.wang@intel.com> References: <1479957659-141601-1-git-send-email-wei.w.wang@intel.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.43 Subject: [Qemu-devel] [PATCH v2 4/4] spec/vhost-user: add VHOST_USER_PROTOCOL_F_VERSATILE_SLAVE X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Wei Wang Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP The VHOST_USER_PROTOCOL_F_VERSATILE_SLAVE protocol feature indicates that the slave side implementation supports different types of devices. The master tells the slave what type of device to create by sending the VHOST_USER_SET_DEV_INFO message. Signed-off-by: Wei Wang --- docs/specs/vhost-user.txt | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/docs/specs/vhost-user.txt b/docs/specs/vhost-user.txt index fdc99ea..da1314d 100644 --- a/docs/specs/vhost-user.txt +++ b/docs/specs/vhost-user.txt @@ -264,11 +264,12 @@ restarted. Protocol features ----------------- -#define VHOST_USER_PROTOCOL_F_MQ 0 -#define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1 -#define VHOST_USER_PROTOCOL_F_RARP 2 -#define VHOST_USER_PROTOCOL_F_REPLY_ACK 3 -#define VHOST_USER_PROTOCOL_F_VHOST_PCI 4 +#define VHOST_USER_PROTOCOL_F_MQ 0 +#define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1 +#define VHOST_USER_PROTOCOL_F_RARP 2 +#define VHOST_USER_PROTOCOL_F_REPLY_ACK 3 +#define VHOST_USER_PROTOCOL_F_VHOST_PCI 4 +#define VHOST_USER_PROTOCOL_F_VERSATILE_SLAVE 5 Message types ------------- @@ -514,6 +515,16 @@ Message types #define VHOST_USER_SET_PEER_CONNECTION_F_CREATE 2 #define VHOST_USER_SET_PEER_CONNECTION_F_DESTROY 3 + * VHOST_USER_SET_DEV_INFO + + Id: 21 + Equivalent ioctl: N/A + Master payload: u64 + + The master sends the device type info to the slave. + This request should be sent only when VHOST_USER_PROTOCOL_F_VERSATILE_SLAVE + has been negotiated. + VHOST_USER_PROTOCOL_F_REPLY_ACK: ------------------------------- The original vhost-user specification only demands replies for certain