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client-ip=216.228.117.160; helo=mail.nvidia.com; pr=C From: Parav Pandit To: CC: , , Parav Pandit Date: Fri, 2 Jun 2023 01:02:59 +0300 Message-ID: <20230601220305.587034-2-parav@nvidia.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20230601220305.587034-1-parav@nvidia.com> References: <20230601220305.587034-1-parav@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.126.231.35] 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: CO1NAM11FT068:EE_|BL3PR12MB6548:EE_ X-MS-Office365-Filtering-Correlation-Id: 27520b1c-22d4-4735-d79e-08db62ec0909 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:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230028)(4636009)(396003)(376002)(346002)(39860400002)(136003)(451199021)(40470700004)(46966006)(36840700001)(40460700003)(107886003)(82740400003)(2616005)(6916009)(4326008)(36756003)(7636003)(356005)(450100002)(70586007)(70206006)(86362001)(478600001)(54906003)(1076003)(26005)(40480700001)(186003)(16526019)(41300700001)(2906002)(36860700001)(47076005)(5660300002)(83380400001)(6666004)(8936002)(8676002)(82310400005)(316002)(336012)(426003);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Jun 2023 22:03:30.5407 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 27520b1c-22d4-4735-d79e-08db62ec0909 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT068.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB6548 Subject: [virtio-comment] [PATCH requirements 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 --- net-workstream/features-1.4.md | 36 ++++++++++++++++++++++++++++++++++ 1 file changed, 36 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..03b4eb3 --- /dev/null +++ b/net-workstream/features-1.4.md @@ -0,0 +1,36 @@ +# 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 control vq command. +2. The driver should be able to query which counters are supported using a + control vq command. +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 admin queue command which + a virtio device will expose via a control vq 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 guest 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_bad_desc_errors: Descriptors dropped by the device due to errors in + descriptors +2. le64 tx_gso_pkts: Packets send as host GSO sequence +3. 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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