From patchwork Sat Dec 17 10:43:45 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: 9478997 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 1231F60827 for ; Sat, 17 Dec 2016 11:26:47 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0470B28553 for ; Sat, 17 Dec 2016 11:26:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ED68328583; Sat, 17 Dec 2016 11:26:46 +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 9319B28553 for ; Sat, 17 Dec 2016 11:26:46 +0000 (UTC) Received: from localhost ([::1]:36175 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cID8X-00070f-Kw for patchwork-qemu-devel@patchwork.kernel.org; Sat, 17 Dec 2016 06:26:45 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53608) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cICV7-0000GQ-BB for qemu-devel@nongnu.org; Sat, 17 Dec 2016 05:46:02 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cICV5-0008V8-US for qemu-devel@nongnu.org; Sat, 17 Dec 2016 05:46:01 -0500 Received: from mga05.intel.com ([192.55.52.43]:21540) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cICV5-0007ss-La for qemu-devel@nongnu.org; Sat, 17 Dec 2016 05:45:59 -0500 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP; 17 Dec 2016 02:45:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.33,363,1477983600"; d="scan'208"; a="1073174663" Received: from devel-ww.sh.intel.com ([10.239.48.105]) by orsmga001.jf.intel.com with ESMTP; 17 Dec 2016 02:45:57 -0800 From: Wei Wang To: marcandre.lureau@gmail.com, mst@redhat.com, stefanha@redhat.com, pbonzini@redhat.com, qemu-devel@nongnu.org, virtio-dev@lists.oasis-open.org Date: Sat, 17 Dec 2016 18:43:45 +0800 Message-Id: <1481971427-11094-36-git-send-email-wei.w.wang@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1481971427-11094-1-git-send-email-wei.w.wang@intel.com> References: <1481971427-11094-1-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 v1 35/37] vhost-pci-net: start the vhost-pci-net device 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 If the peer device on the other side doesn't need to be reset, then start the device when DRIVER_OK is received. Signed-off-by: Wei Wang --- hw/net/vhost-pci-net.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/hw/net/vhost-pci-net.c b/hw/net/vhost-pci-net.c index 6d4db6c..75ee72c 100644 --- a/hw/net/vhost-pci-net.c +++ b/hw/net/vhost-pci-net.c @@ -22,6 +22,16 @@ #define VPNET_CQ_SIZE 32 #define VPNET_RQ_SIZE 256 +static void vpnet_set_link_up(VhostPCINet *vpnet) +{ + VirtIODevice *vdev = VIRTIO_DEVICE(vpnet); + uint16_t old_status = vpnet->status; + + vpnet->status |= VPNET_S_LINK_UP; + if (vpnet->status != old_status) + virtio_notify_config(vdev); +} + void vpnet_set_peer_vq_num(VhostPCINet *vpnet, uint16_t num) { vpnet->peer_vq_num = num; @@ -125,6 +135,11 @@ static void vpnet_set_status(struct VirtIODevice *vdev, uint8_t status) if (status & VIRTIO_CONFIG_S_DRIVER_OK) { vpnet_send_peer_mem_msg(vpnet); vpnet_send_peer_vq_msg(vpnet); + /* If the peer device is not reset, start the device now */ + if (!vp_slave->peer_reset) { + vdev->status = status; + vpnet_set_link_up(vpnet); + } } }