Changes and New Features

Warning

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.

Warning

When upgrading or changing the configuration on multi-host adapter cards, for the changes to take effect, PCIe restart must be simultaneously sent from both hosts (servers).

To do so, perform the following:

1. Shut down the server with the auxiliary card.

2. Shut down the server with the primary card.

3. Bring back the server with the primary card.

4. Bring back the server with the auxiliary card.

Warning

SR-IOV - Virtual Functions (VF) per Port - The maximum Virtual Functions (VF) per port is 127. For further information, see RoCE Limitations.

Warning

It is recommended to enable the “above 4G decoding” BIOS setting for features that require large amount of PCIe resources.

Such features are: SR-IOV with numerous VFs, PCIe Emulated Switch, and Large BAR Requests.

Feature/Change

Description

16.33.1048

NV Configurations via the Relevant Reset Flow

Added pci_rescan_needed field to the MFRL access register to indicate whether a PCI rescan is needed based on the NV configurations issued by the software.
Note: If the Keep Link Up NV configuration is changed, phyless reset will be blocked.

MADs

Added a new MAD of class SMP that has the attributes hierarchy_Info as defined in the IB Specification and is used to query the hierarchy information stored on the node and the physical port.

ICM Pages

Added a new register (vhca_icm_ctrl access_reg) to enable querying and limiting the ICM pages in use.

XRQ QP Errors Enhancements

Enhanced the XRQ QP error information provided to the user in case QP goes into an error state. In such case, QUERY_QP will provide information on the syndrome type and which side caused
the error.

NetworkPort Schema Replacement

Replaced the deprecated NetworkPort schema with Port schema in NIC RDE implementation.

ibstat

Updated the ibstat status reported when the phy link is down. Now QUERY_VPORT_STATE.max_tx_speed of UPLINK will not be reported as 0 anymore.

SMPs

Disabled the option to send SMPs from unauthorized hosts.

Firmware Steering

Enabled the option to modify the ip_ecn field in the packet header in firmware steering.

SW Steering Cache

Modified the TX or RX cache invalidation behavior. TX or RX cache invalidation now does not occur automatically but only when the software performs the sync operation using the using sync_steering command.

Mega Allocations in Bulk Allocator Mechanism

Modified the maximum bulk size per single allocation from "log_table_size - log_num_unisizes", to allocate any range size, to remove limitations that HWS objects such as counters and modify arguments might encounter.

Bug Fixes

See Bug Fixes in this Firmware Version section.

© Copyright 2023, NVIDIA. Last updated on May 23, 2023.