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On any HPE platform running a Linux operating system, and configured with any of the HPE Intel E810-based network adapters with firmware version 4.50 (or prior) listed in the Scope section below; firmware update failure messages and an unexpected system reboot may be experienced during a Platform Level Data Model (PLDM) firmware update process through HPE iLO when Transmit Balancing is enabled. The Transmit Balancing can be enabled in the BIOS/Platform Configuration (RBSU) or by executing the following Linux command:devlink dev param set pci/0000:3f:00.0 name txbalancing value true cmode permanentNotes:<pci/D:b:d.f>represents the PCI address of the Physical Function (PF).<setting> can be "true" to enable transmit balancing, or "false" to disable transmit balancing.This issue occurs because the network adapter does not check the parameter validness during the synchronization with the Intel Linux driver in the final firmware activation phase, causing a system reboot after the invalid parameteris applied. Even Though the firmware update of the network adapter succeeds, the unexpected system reset results in HPE iLO displaying error messages at the end.Important:The Transmit Balancing feature is disabled by default.Transmit Balancing is a performance tuning technique to improve the consistent transmit performance across queues for Physical Functions (PFs).This issue only occurs when using the Intel Out-of-Box (OOB) Driver because the inbox driver does not support the Transmit Balancing Feature.
Any HPE platform running a Linux operating system, and configured with any of the following HPE Intel E810-based network adapters:Intel E810-2CQDA2 Ethernet 100Gb 2-port QSFP28 Adapter for HPE (P41611-B21)Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 Adapter for HPE (P21112-B21)Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 OCP3 Adapter for HPE (P22767-B21)Intel E810-XXVDA2 Ethernet 10/25Gb 2-port SFP28 Adapter for HPE (P08443-B21)Intel E810-XXVDA2 Ethernet 10/25Gb 2-port SFP28 OCP3 Adapter for HPE (P10106-B21)Intel E810-XXVDA4 Ethernet 10/25Gb 4-port SFP28 Adapter for HPE (P08458-B21)Intel E810-XXVDA4 Ethernet 10/25Gb 4-port SFP28 MCLK Adapter for HPE (P41636-B21)Intel E810-XXVDA4 Ethernet 10/25Gb 4-port SFP28 OCP3 Adapter for HPE (P41614-B21)Note:The network adapter(s) in this document are affected by a naming standard change for HPE products to help customers quickly and easily identify the specific vendor and model while configuring HPE platforms. For more information about the name changes and for identification purposes, refer to the following Customer Notice:HPE Network Adapters - Product Renaming Framework And Plan For HPE Network Adapters
As a workaround, perform the following steps:Disable the "Transmit Balancing configuration" by performing either of the following procedures:Procedure 1:In the BIOS/Platform Configuration (RBSU) for the affected network adapters, go to the following path:System Utilities -> System Configuration -> Main Configuration Page -> Device Level Configuration -> Transmit BalancingORProcedure 2: Perform the following Linux command:devlink dev param set pci/0000:3f:00.0 name txbalancing value false cmode permanentStart the firmware update/downgrade again.Reboot the system.After the firmware update/downgrade is complete, enable "Transmit Balancing" again in the BIOS/Platform Configuration (RBSU) or by running the following Linux command:devlink dev param set pci/0000:3f:00.0 name txbalancing value true cmode permanentThis advisory will be updated when a future firmware version that resolves the issue becomes available.
Operating Systems Affected:Not Applicable
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