From patchwork Mon Dec 19 05:58:52 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: 9479721 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 DC833601C0 for ; Mon, 19 Dec 2016 06:29:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CCF2D28339 for ; Mon, 19 Dec 2016 06:29:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BF0202845B; Mon, 19 Dec 2016 06:29:24 +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 6BF9728339 for ; Mon, 19 Dec 2016 06:29:24 +0000 (UTC) Received: from localhost ([::1]:43606 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cIrRr-0004Id-GF for patchwork-qemu-devel@patchwork.kernel.org; Mon, 19 Dec 2016 01:29:23 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53751) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cIr0G-00038V-7b for qemu-devel@nongnu.org; Mon, 19 Dec 2016 01:00:53 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cIr0F-0004hV-Gt for qemu-devel@nongnu.org; Mon, 19 Dec 2016 01:00:52 -0500 Received: from mga06.intel.com ([134.134.136.31]:33815) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cIr0F-0004Vl-96 for qemu-devel@nongnu.org; Mon, 19 Dec 2016 01:00:51 -0500 Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga104.jf.intel.com with ESMTP; 18 Dec 2016 22:00:50 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,372,1477983600"; d="scan'208";a="44549989" Received: from devel-ww.sh.intel.com ([10.239.48.105]) by fmsmga006.fm.intel.com with ESMTP; 18 Dec 2016 22:00:49 -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: Mon, 19 Dec 2016 13:58:52 +0800 Message-Id: <1482127152-84732-18-git-send-email-wei.w.wang@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1482127152-84732-1-git-send-email-wei.w.wang@intel.com> References: <1482127152-84732-1-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: 134.134.136.31 Subject: [Qemu-devel] [RESEND Patch v1 17/37] vhost-pci-slave/msg: VHOST_USER_SET_VRING_BASE 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 Update last_avail_idx to the head node in the list. Signed-off-by: Wei Wang --- hw/virtio/vhost-pci-slave.c | 10 ++++++++++ include/hw/virtio/vhost-pci-slave.h | 1 + 2 files changed, 11 insertions(+) diff --git a/hw/virtio/vhost-pci-slave.c b/hw/virtio/vhost-pci-slave.c index 77a2f68..a74b16c 100644 --- a/hw/virtio/vhost-pci-slave.c +++ b/hw/virtio/vhost-pci-slave.c @@ -216,6 +216,13 @@ static void vp_slave_set_vring_num(VhostUserMsg *msg) pvq_node->vring_num = msg->payload.u64; } +static void vp_slave_set_vring_base(VhostUserMsg *msg) +{ + PeerVqNode *pvq_node = QLIST_FIRST(&vp_slave->pvq_list); + + pvq_node->last_avail_idx = msg->payload.u64; +} + static int vp_slave_can_read(void *opaque) { return VHOST_USER_HDR_SIZE; @@ -286,6 +293,9 @@ static void vp_slave_read(void *opaque, const uint8_t *buf, int size) vp_slave_alloc_pvq_node(); vp_slave_set_vring_num(&msg); break; + case VHOST_USER_SET_VRING_BASE: + vp_slave_set_vring_base(&msg); + break; default: error_report("vhost-pci-slave does not support msg request = %d", msg.request); diff --git a/include/hw/virtio/vhost-pci-slave.h b/include/hw/virtio/vhost-pci-slave.h index fe4824c..cfe4107 100644 --- a/include/hw/virtio/vhost-pci-slave.h +++ b/include/hw/virtio/vhost-pci-slave.h @@ -6,6 +6,7 @@ #include "standard-headers/linux/vhost_pci_net.h" typedef struct PeerVqNode { + uint16_t last_avail_idx; uint32_t vring_num; QLIST_ENTRY(PeerVqNode) node; } PeerVqNode;