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client-ip=216.228.117.161; helo=mail.nvidia.com; pr=C From: Parav Pandit To: CC: , , , Parav Pandit Date: Mon, 3 Jul 2023 02:44:04 +0300 Message-ID: <20230702234410.47546-2-parav@nvidia.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20230702234410.47546-1-parav@nvidia.com> References: <20230702234410.47546-1-parav@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.126.230.35] X-ClientProxiedBy: rnnvmail201.nvidia.com (10.129.68.8) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT101:EE_|BL3PR12MB6452:EE_ X-MS-Office365-Filtering-Correlation-Id: b35e6ae3-30ff-49e8-e545-08db7b5644a2 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)(396003)(376002)(346002)(136003)(451199021)(40470700004)(46966006)(36840700001)(40460700003)(2906002)(41300700001)(5660300002)(8676002)(8936002)(82310400005)(36756003)(40480700001)(86362001)(16526019)(186003)(2616005)(478600001)(107886003)(26005)(1076003)(6666004)(82740400003)(47076005)(70206006)(316002)(4326008)(6916009)(70586007)(36860700001)(7636003)(54906003)(356005)(336012)(426003)(83380400001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jul 2023 23:44:25.0424 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b35e6ae3-30ff-49e8-e545-08db7b5644a2 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: DM6NAM11FT101.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB6452 Subject: [virtio-comment] [PATCH REQUIREMENTS v2 1/7] net-features: Add requirements document for release 1.4 Add requirements document template for the virtio net features. Add virtio net device counters visible to driver. Signed-off-by: Parav Pandit --- changelog: v0->v1: - removed tx dropped counter - updated requirements to mention about virtqueue interface for counters query --- net-workstream/features-1.4.md | 35 ++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 net-workstream/features-1.4.md diff --git a/net-workstream/features-1.4.md b/net-workstream/features-1.4.md new file mode 100644 index 0000000..4c3797b --- /dev/null +++ b/net-workstream/features-1.4.md @@ -0,0 +1,35 @@ +# 1. Introduction + +This document describes the overall requirements for virtio net device +improvements for upcoming release 1.4. Some of these requirements are +interrelated and influence the interface design, hence reviewing them +together is desired while updating the virtio net interface. + +# 2. Summary +1. Device counters visible to the driver + +# 3. Requirements +## 3.1 Device counters +1. The driver should be able to query the device and/or per vq counters for + debugging purpose using a virtqueue directly from driver to device for + example using a control vq. +2. The driver should be able to query which counters are supported using a + virtqueue command, for example using an existing control vq. +3. If this device is migrated between two hosts, the driver should be able + get the counter values in the destination host from where it was left + off in the source host. +4. If a virtio device is group member device, a group owner should be able + to query all the counter attributes using the administration command which + a virtio member device will expose via a virtqueue to the driver. + +### 3.1.1 Per receive queue counters +1. le64 rx_oversize_pkt_errors: Packet dropped due to receive packet being + oversize than the buffer size +2. le64 rx_no_buffer_pkt_errors: Packet dropped due to unavailability of the + buffer in the receive queue +3. le64 rx_gro_pkts: Packets treated as receive GSO sequence by the device +4. le64 rx_pkts: Total packets received by the device + +### 3.1.2 Per transmit queue counters +1. le64 tx_gso_pkts: Packets send as transmit GSO sequence +2. le64 tx_pkts: Total packets send by the device -- 2.26.2 This publicly archived list offers a means to provide input to the OASIS Virtual I/O Device (VIRTIO) TC. 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