Changes and New Feature History

PLDM PDR Repository Change Event Support

PLDM now supports the PDR Repository Change event type, enabling notification to the BMC when PDRs change. With this flow, the BMC can detect cable insertion/removal events. Refer to DSP0248 for details.

NVGRE VSID Modify-Header Support

Extended packet modify-header operations to support set and copy actions on the NVGRE VSID (Virtual Subnet Identifier). A new field, TUNNEL_HDR_DW_2 (0x84), enables dynamic VSID modification, adding header rewrite support for NVGRE tunnel traffic in addition to existing filtering capabilities.

Bug Fixes

See Bug Fixes in this Firmware Version section. 

Bug Fixes

See Bug Fixes in this Firmware Version section. 

Parallel Suspends of VFs

Added support for parallel suspend operations across multiple VFs.

ADP-RETX Timeout Profile

Firmware now allows the ADP-RETX timeout profile to be configured even when there are open QPs.

Passing Metadata Registers between the NIC Layer and the E-Switch (esw) Layer

This enhancement enables seamless metadata propagation across layers, allowing flow steering rules and packet processing logic to share contextual information such as flow identifiers, source context, or policy tags. It improves coordination between NIC and E-Switch pipelines, enabling more flexible traffic handling and advanced offload capabilities.

Enable/Disable ECN in Upstream

Added the ability to enable or disable ECN in the upstream by allowing the MODIFY_CONG_STATUS and QUERY_CONG_STATUS commands in mlx5_fwctl.

Bug Fixes

See Bug Fixes in this Firmware Version section. 

Security Hardening Enhancements

This release contains important reliability improvements and security hardening enhancements. NVIDIA recommends upgrading your devices firmware to this release to improve the devices’ firmware security and reliability.

RSS with Crypto Offload

Added support for RSS with crypto offload enabling the NIC to parallelize packet processing across CPU cores while performing encryption/decryption in hardware. Additionally, introduced a new l4_type_ext parameter with values: 0 (None), 1 (TCP), 2 (UDP), 3 (ICMP).

Incoming NC-SI Messages Validation for the payload_len Field

Added an extra validation for the payload_len field in incoming NC-SI messages. Previously, invalid packets might have been accepted; now, such packets are silently dropped.

Bug Fixes

See Bug Fixes in this Firmware Version section.