From nobody Mon Feb 9 10:48:29 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1564718830; cv=none; d=zoho.com; s=zohoarc; b=FfPR58IPfLguTIzn1s5kJZqLEc9tNKWQ8v5eyzRoMQHtdUra7N+TxEki96xiXmxJEzqGa02npV8/skS0yku8uN2RbzIiq/6wzP04OqoyPpRQPKZT1mf9vFdIH661Zs5AIblJUZW7HoBMPDM0MpPmPKjZA4NzCmjC19KZzYSiG7Q= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1564718830; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=DHeXuKs37jxFJSoa7bZ/jBE62vhI8HZ0cSiOoPlhAr4=; b=bqhq/5Zlk4lmTD6blowaQMg2rieaNSOz4S6bjoBIXfBLv4orzabbMePav5AGp3HvXA/PF9+knvEgDGTI7ckPm74dPgieeJkaqAIiPymiu6WLFPGKd+Uoy472eDrWxRvoObqxxBu4GR7/vgFz7c0movOF1qtRvd/OGGr5ZbXKEt4= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1564718830475996.7292951968022; Thu, 1 Aug 2019 21:07:10 -0700 (PDT) Received: from localhost ([::1]:60294 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1htOqN-0006VY-MJ for importer@patchew.org; Fri, 02 Aug 2019 00:07:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50411) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1htOpo-0005cw-By for qemu-devel@nongnu.org; Fri, 02 Aug 2019 00:06:29 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1htOpn-0001Sa-CK for qemu-devel@nongnu.org; Fri, 02 Aug 2019 00:06:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41430) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1htOpn-0001Rx-77 for qemu-devel@nongnu.org; Fri, 02 Aug 2019 00:06:27 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 8310131E7D0; Fri, 2 Aug 2019 04:06:26 +0000 (UTC) Received: from hp-dl380pg8-01.lab.eng.pek2.redhat.com (hp-dl380pg8-01.lab.eng.pek2.redhat.com [10.73.8.10]) by smtp.corp.redhat.com (Postfix) with ESMTP id 45D7A1001B02; Fri, 2 Aug 2019 04:06:21 +0000 (UTC) From: Jason Wang To: mst@redhat.com Date: Fri, 2 Aug 2019 00:06:01 -0400 Message-Id: <20190802040606.22573-2-jasowang@redhat.com> In-Reply-To: <20190802040606.22573-1-jasowang@redhat.com> References: <20190802040606.22573-1-jasowang@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Fri, 02 Aug 2019 04:06:26 +0000 (UTC) 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 V5 1/6] virtio: basic structure for packed ring 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: yang.zhong@intel.com, tiwei.bie@intel.com, Jason Wang , qemu-devel@nongnu.org, maxime.coquelin@redhat.com, Wei Xu , jfreimann@redhat.com, weiyshay@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Wei Xu Define packed ring structure according to Qemu nomenclature, field data(wrap counter, etc) are also included. Signed-off-by: Wei Xu Signed-off-by: Jason Wang Reviewed-by: Jens Freimann --- hw/virtio/virtio.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index a94ea18a9c..981738fa19 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -39,6 +39,13 @@ typedef struct VRingDesc uint16_t next; } VRingDesc; =20 +typedef struct VRingPackedDesc { + uint64_t addr; + uint32_t len; + uint16_t id; + uint16_t flags; +} VRingPackedDesc; + typedef struct VRingAvail { uint16_t flags; @@ -77,17 +84,25 @@ typedef struct VRing VRingMemoryRegionCaches *caches; } VRing; =20 +typedef struct VRingPackedDescEvent { + uint16_t off_wrap; + uint16_t flags; +} VRingPackedDescEvent ; + struct VirtQueue { VRing vring; =20 /* Next head to pop */ uint16_t last_avail_idx; + bool last_avail_wrap_counter; =20 /* Last avail_idx read from VQ. */ uint16_t shadow_avail_idx; + bool shadow_avail_wrap_counter; =20 uint16_t used_idx; + bool used_wrap_counter; =20 /* Last used index value we have signalled on */ uint16_t signalled_used; --=20 2.18.1