Changes and New Feature History

QoS priority trust default state can now be changed using the new nvconfig below:

• QOS_TRUST_STATE_P1
• QOS_TRUST_STATE_P2

The values that can be used to set the default state are:

• TRUST_PORT
• TRUST_PCP
• TRUST_DSCP
• TRUST_DSCP_PCP

Crypto features can be in either wrapped or unwrapped mode. Meaning, the key can be wrapped or in plaintext when running the CREATE_DEK PRM command. To comply with the requirements specified in FIPS publication, all the created DEKs must be wrapped.

This feature adds new NV_CONFIG per device to control this mode, and enables the user to change all the crypto features to wrapped or cleartext.

Added a new NvConfig parameter LOG_MAX_QUEUE to set the maximum number of work queue resources (QP, RQ, SQ...) that can be created per function.

The default value is 2^17.

Added a Congestion Control Key to all Congestion Control MADs to authenticate that they are originated from a trusted source.

Added an SMP firewall to block the option of sending SMPs (MADS sent on QP0 from the Subnet Manager) from unauthorized hosts to prevent fake SMPs from being recognized as the SM.

Added 3 new assert filters (Health buffer, NVlog, FW trace). The assert will be exposed now if its severity level is equal to or above the new filter.

The filters are configurable by the ini file. The "Health buffer" filter is also configurable by new access register.

An emulated PCI device can be hot plugged/unplugged by the DPU software stack. However, the life cycle and the state of the bare metal host system where an emulated PCI device is plugged in, is not in control of the DPU software stack.

PCI BDF may not be available in corner cases, hence, an emulation PCI device handler (VUID) is required which is predictable and stable (across emulation controller reset/restart, across DPU warm reboot). The VUID will show in PCI PF device VPD as [VU] section.

Added support for asymmetrical VFs per PF. 

To enable it:
PF_NUM_OF_VF_VALID must be true, and PF_NUM_OF_VF to a none zero value.

Added support for Enabling/Disabling NIC and RDMA (port/partition) via the UEFI HII system settings.

Note: Values set in this option only take effect when is Ethernet mode.

This feature allows the device to be configured with a different number of MSIX vectors per physical PCI functions.

To use this feature, please follow these steps:

1. Clear NUM_PF_MSIX_VALID to disable global symmetrical MSIX configuration.
2. Set PF_NUM_PF_MSIX_VALID to enable asymmetrical per Physical Function MSIX configuration.
3. Configure PF_NUM_PF_MSIX per physical PCI function.

Notes:

• When using this configuration, NUM_PF_MSIX (the symmetrical MSIX configuration field) will be ignored by the firmware although it will be present in the mlxconfig query.
• The asymmetrical MSIX configuration and the legacy symmetrical MSIX configuration are mutually exclusive. When both are enabled, the firmware will work according to the symmetrical MSIX configuration.
• Step #3 should be done on each of the physical PCI functions, otherwise, the device will use default configurations.

When the non-page-supplier-FLR funcion is initiated, the firmware triggers a page event to the page supplier to indicate that all pages should be returned for the FLR function.

Pages are returned by the driver to the kernel without issuing the MANAGE_PAGES commands to the firmare.

See Bug Fixes section. 

[Beta] Enabled remote (PMA) loopback in NRZ, Rx-to-Tx.

Note: To use the PMA loopback, both sides should be in Force Mode (AN Disabled).

[Beta] This capability allows the software to reserve a QPN that can be used to establish connection performed over RDMA_CM, and provide the software a unique QP number.

Since RDMA_CM does not support DC, by using CREATE_QPN_RESERVED_OBJECT the software can reserve a QPN value from the firmware's managed QP number namespace range. This allows multiple software processes to hold a unique QPN value instead of using UD-QPs.

See Bug Fixes section. 

[Beta] Added support for LinkX module burning via MFT toolset. The new capability enables direct firmware burning from the internal flash storage to reduce the bandwidth and accelerate the burning process, including burning several modules at a time.

Hardware steering dump output used for debugging and troubleshooting.

Please see Known Issue 2213356 for its limitations.

Increased the minimum Sub Function (SF) BAR size from 128KB to 256KB. Due to the larger SF BAR size, for the same PF BAR2 size, which can be queried/modified by LOG_PF_BAR2_SIZE NV config, the firmware will support half of the SFs.

To maintain the same amount of supported SFs, software needs to increase the LOG_PF_BAR2_SIZE NV config value by 1.

Added a new Non-Volatile Configuration parameter to control VL15 buffer size (VL15_BUFFER_SIZE).

Note: VL15 buffer size enlargement will decrease all other VLs buffers size.

Split the SlowRestart ROCE_ACCL into the following:

• slow-restart – used to reduce rate on retransmission events
• slow-restart-after-idle – used to reduce rate before first transmission after >1s without transmitting

Enabled TX PSN window size configuration using LOG_TX_PSN_WINDOW NVconfig parameter.

Note: Due to hardware limitations, max log_tx_psn_win value can be set 9.

Increased the minimum Sub Function (SF) BAR size from 128KB to 256KB. Due to the larger SF BAR size, for the same PF BAR2 size, which can be queried/modified by LOG_PF_BAR2_SIZE NV config, the firmware will support half of the SFs.

To maintain the same amount of supported SFs, software needs to increase the LOG_PF_BAR2_SIZE NV config value by 1.

Added a new Non-Volatile Configuration parameter to control VL15 buffer size (VL15_BUFFER_SIZE).

Note: VL15 buffer size enlargement will decrease all other VLs buffers size.

Split the SlowRestart ROCE_ACCL into the following:

• slow-restart – used to reduce rate on retransmission events
• slow-restart-after-idle – used to reduce rate before first transmission after >1s without transmitting

Enabled TX PSN window size configuration using LOG_TX_PSN_WINDOW NVconfig parameter.

Note: Due to hardware limitations, max log_tx_psn_win value can be set 9.

Implemented the following new commands from NS-SI 1.2 specification:

• Get IB Link Status
• Get IB Statistics
• Get PF Assignment

Added the following IPoIB Virtualization updates:

• Support for SX RDMA Flow Table type in IB port
• Support for modifying header action in IB port
• Support for new hairpin mode:
  • IB-to-IB
  • Eth-to-IB
  • IB-to-Eth

Added the following new mlxconfig parameters to the Non-Volatile Configurations section.

• log_max_outstandng_wqe
• ece_disable_mask