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client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C From: Parav Pandit To: , , CC: , , , , , Parav Pandit Date: Thu, 4 May 2023 05:29:49 +0300 Message-ID: <20230504022959.547025-2-parav@nvidia.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20230504022959.547025-1-parav@nvidia.com> References: <20230504022959.547025-1-parav@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.126.231.37] X-ClientProxiedBy: rnnvmail203.nvidia.com (10.129.68.9) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT097:EE_|PH8PR12MB7301:EE_ X-MS-Office365-Filtering-Correlation-Id: 307b5c75-f6f3-42e2-b025-08db4c4787c0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230028)(4636009)(39860400002)(376002)(136003)(346002)(396003)(451199021)(40470700004)(46966006)(36840700001)(70206006)(2906002)(5660300002)(36756003)(40460700003)(8676002)(8936002)(41300700001)(82310400005)(70586007)(478600001)(110136005)(966005)(4326008)(40480700001)(316002)(86362001)(6666004)(54906003)(107886003)(7636003)(356005)(16526019)(47076005)(82740400003)(36860700001)(2616005)(336012)(83380400001)(186003)(426003)(1076003)(26005);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 May 2023 02:30:30.5592 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 307b5c75-f6f3-42e2-b025-08db4c4787c0 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT097.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB7301 Subject: [virtio-dev] [PATCH v16 01/11] content: Add vq index text Introduce vq index and its range so that subsequent patches can refer to it. Fixes: https://github.com/oasis-tcs/virtio-spec/issues/163 Reviewed-by: Halil Pasic Signed-off-by: Parav Pandit --- changelog: v15->v16: - rewrote for better reading v12->v13: - avoid virtqueue -> vq abbreviation - removed Cornelia's reviewed-by due to vq abbreviation change v11->v12: - renamed 'number' to 'index' v9->v10: - added braces around vq number wording - added vqn as another term for vq number v8->v9: - added inclusive when describing the vq number range - skipped comment to put virtqueue number wording first because we prefer to use shorter vq number as much as possible v5->v6: - moved description close to introduction, it was in middle of queue data transfer description v2->v3: - new patch --- content.tex | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/content.tex b/content.tex index cff548a..9b694f2 100644 --- a/content.tex +++ b/content.tex @@ -298,6 +298,10 @@ \section{Virtqueues}\label{sec:Basic Facilities of a Virtio Device / Virtqueues} virtqueues\footnote{For example, the simplest network device has one virtqueue for transmit and one for receive.}. +A virtio device can have maximum of 65536 virtqueues. Each virtqueue is +identified by a virtqueue index. A virtqueue index has a value in the +range of 0 to 65535. + Driver makes requests available to device by adding an available buffer to the queue, i.e., adding a buffer describing the request to a virtqueue, and optionally triggering -- 2.26.2 --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscribe@lists.oasis-open.org For additional commands, e-mail: virtio-dev-help@lists.oasis-open.org