Changes and New Feature History
HPCC, Programmable Congestion Control
HPCC related configurations in is now supported via the mlxconfig utility.
Added support for copy modify header steering action to/from the UDP field.
Added the following resource dump segments:
Striding WQE - Headroom and Tail-room
As the software requires additional space before and after a packet is scattered for its processing for stridden RQ, the hardware will allocate the required room while scattering packets to spare a copy.
Connections per Second (CPS)
Improved security offload's Connections per Second (CPS) rate using the general object DEK (PSP TLS etc).
VirtIO vDPA Performance Virtualization
Increased the VirtIO hardware offload message rate to 20/20 MPPS for 256 virtual devices by optimizing the datapath application code.
Open SNAPI: Communication Channel
Open SNAPI steering hop optimization:
Added support for SHA calculations via the MMO engine.
Optimized latency for UPT traffic.
Added LAG support on NODNIC interfaces to enable traffic functionality on other ports after the LAG is enabled.
QoS Priority Trust Default State
QoS priority trust default state can now be changed using the new nvconfig below:
The values that can be used to set the default state are:
VirtIO Full Emulation
Implemented a transitional device which supports both drivers conforming to the spec 1.x and allows legacy drivers to support virtio legacy driver (virtio 0.95).
See Bug Fixes in this Firmware Version section.
LLDP Properties Implementation on RDE
Added LLDPEnable, LLDPTransmit and LLDPReceive properties to the RDE Port schema implementation.
Added a 22 nanosecond of propagation delay to the cable delay of the PPS signal when using PPS out.
Programmable CC, PPCC, MAD, IBCC
Added support for PPCC register with bulk operations, MAD for algorithm configuration and tunable parameters.
Added support for programmable counters for PCC via PPCC register and MAD.
See Bug Fixes section.
NVIDIA BlueField-2 DPU NIC Operation Mode
In this mode, the DPU behaves exactly like a ConnectX SmartNIC from the perspective of the external host.
As part of this operation mode, this new capability allows the host Physical Function:
For further information, see section "NVIDIA BlueField-2 DPU NIC Operation Mode" in this document.
200Gb/s Throughput on Crypto Capable Devices
Enabled 200Gb/s out-of-the-box throughput on crypto capable devices.
Note: If any crypto offloads is in use, 200Gb/s throughput can be achieved only after the next firmware reset
Added support for VF migration. The hypervisor can now suspend its VF, meaning from that point the VF cannot perform action such as send/receive traffic or run any command. In this firmware version only the suspend resume mode is supported (on the same VM).
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.
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.
Increasing Firmware's Queue Depth Limit
Changing the mlxconfig parameter allows the user to expose different value of max queue depth in NVMe CAP on static emulated functions which results in NVMe module creating longer NVMe queues.
RSHIM PF Interrupts Implementation
Added support for interrupts on the RSHIM PFs to enable gracefully stop of the RSHIM host driver.
Added a new register (vhca_icm_ctrl access_reg) to enable querying and limiting the ICM pages in use.
Added support for VF migration.
NetworkPort Schema Replacement
Replaced the deprecated NetworkPort schema with Port schema in NIC RDE implementation.
Added support for "mlxfwreset --sync 1" for the RShim PF.
Added support for creating a steering definer with a dword selector using create_match_definer_object and the "SELECT" format.
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
HW Steering: WQE Insertion Rules
[Beta] Added HW Steering support for the following:
Added support for holdover mode to comply to SyncE specifications (EEC compliance) to limit the maximum phase transient response upon link loss.
Added support for noise filtering to comply to the SyncE specifications requirements.
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.
Added support for advanced ZTR_RTTCC algorithm based on the Programmable CC platform to achieve better congestion control without dependency on the switch ECN marking.
Disabled the option to send SMPs from unauthorized hosts.
Dynamic Completion Event Moderation for vDPA
DIM is used to tune moderation parameter dynamically using an mlxreg command.
To disable this capability, run:
mlxreg -d /dev/mst/mt41686_pciconf0 --reg_id 0xc00d --reg_len 0x8 -s "0x4.1:1=0x0"
UPT Performance Improvement
Improved UPT PPS performance.
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.
Dynamic Flex Parser over a VF
Added support for creating a dynamic flex parser on untrusted function, and changed the flex parser cap for untrusted function to the following:
Changing all the Crypto Features to Wrapped or Cleartext
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.
ICM Direct Access by the Software to write/modify the DEK Objects
[Beta] This new capability enables the software to directly access ICM and write/modify the DEK objects. Such change improves the DEK object update rate by re-using DEK object instead of creating a new one.
In addition, added the following:
See Bug Fixes section.