Workaround: change MTU of inner VLAN to be 4 bytes less than the MTU of the outer VLAN. Linux: When using Double VLAN configuration with a specific non-Intel link partner, TCP traffic might fail to pass through the inner VLAN interface when the MTU of this interface matches the MTU of the outer VLAN interface.
Linux: When double VLAN or Queue in Queue feature is enabled, the inner most traffic source might need to be limited to an MTU size of 1496 or less to avoid connection issues.
Linux: QoS bandwidth shaping and priority tagging may not be functional in CentOS 7.2. This does not affect traffic or device functionality. Linux: On CentOS 7.2, ethtool may report Speed as Unknown and you may see warnings in dmesg log. This was a cosmetic issue with no functional impact other than an increase in the dropped packets count. Linux: Packets received during the driver load are displayed as dropped because the packet drop counter was started before the driver was fully loaded. This issue is fixed in ice driver 1.7.x and above. Ethtool -S statistics were unaffected by this issue and would show correct counts. Linux: There was a statistics issue where ifconfig/ip -s link show could potentially show overall statistics counting backwards due to a timing issue in stats collection. Linux: Rapid unloading and loading of the irdma and ice drivers may cause a kernel panic. When the MTU is set to one of these values the VM may experience a memory leak leading to kernel panic when TCP traffic is running from a link partner to the VF. Linux: For configurations in which a VF is attached to a VM, avoid setting the MTU value of the VF within the range of 9199-9202. Linux: When changing the RSS queue value in VM while Double VLAN is configured, rx_vlano may stop incrementing correctly. This issue impacts interrupt mode workloads only there is no impact to workloads using busy poll mode, such as ADQ. Linux: Linux ice driver versions 1.4.x through 1.6.x have a performance regression that affects NVMe over Fabric baseline TCP performance using interrupt mode. Microsoft Windows Server 2022 support for devices based on the following controllers: Intel Ethernet Controller X552 and Intel Ethernet Controller X553 Drone / Helicopter / Multicopter / Controller.Scanner / Digital Camera / Webcam / Camcorder.Scanner / Digital Camera / Webcam /Camcorder.
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