From patchwork Fri May 18 22:20:46 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Liu, Changpeng" X-Patchwork-Id: 916641 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=intel.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 40nj8p210Cz9rvt for ; Sat, 19 May 2018 08:12:42 +1000 (AEST) Received: from localhost ([::1]:41049 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fJnc7-0001UE-Ul for incoming@patchwork.ozlabs.org; Fri, 18 May 2018 18:12:39 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58004) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fJnb4-00013W-Ih for qemu-devel@nongnu.org; Fri, 18 May 2018 18:11:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fJnb0-0000Hj-IA for qemu-devel@nongnu.org; Fri, 18 May 2018 18:11:34 -0400 Received: from mga02.intel.com ([134.134.136.20]:8331) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fJnb0-0000HT-AD for qemu-devel@nongnu.org; Fri, 18 May 2018 18:11:30 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 May 2018 15:11:28 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.49,416,1520924400"; d="scan'208";a="42991932" Received: from fedora.sh.intel.com ([10.67.114.176]) by orsmga006.jf.intel.com with ESMTP; 18 May 2018 15:11:27 -0700 From: Changpeng Liu To: qemu-devel@nongnu.org Date: Sat, 19 May 2018 06:20:46 +0800 Message-Id: <1526682046-17414-1-git-send-email-changpeng.liu@intel.com> X-Mailer: git-send-email 1.9.3 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 134.134.136.20 Subject: [Qemu-devel] [PATCH] contrib/vhost-user-blk: enable protocol feature for vhost-user-blk 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: changpeng.liu@intel.com, stefanha@redhat.com, mst@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This patch reports the protocol feature that is only advertised by QEMU if the device implements the config ops. Signed-off-by: Changpeng Liu Reviewed-by: Stefan Hajnoczi --- contrib/vhost-user-blk/vhost-user-blk.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/contrib/vhost-user-blk/vhost-user-blk.c b/contrib/vhost-user-blk/vhost-user-blk.c index 67dac81..a6a132a 100644 --- a/contrib/vhost-user-blk/vhost-user-blk.c +++ b/contrib/vhost-user-blk/vhost-user-blk.c @@ -311,6 +311,12 @@ vub_get_features(VuDev *dev) 1ull << VHOST_USER_F_PROTOCOL_FEATURES; } +static uint64_t +vub_get_protocol_features(VuDev *dev) +{ + return 1ull << VHOST_USER_PROTOCOL_F_CONFIG; +} + static int vub_get_config(VuDev *vu_dev, uint8_t *config, uint32_t len) { @@ -373,6 +379,7 @@ vub_set_config(VuDev *vu_dev, const uint8_t *data, static const VuDevIface vub_iface = { .get_features = vub_get_features, .queue_set_started = vub_queue_set_started, + .get_protocol_features = vub_get_protocol_features, .get_config = vub_get_config, .set_config = vub_set_config, };