Changes and New Features
To generate PLDM packages for firmware updates, users must install and use the MFT version that corresponds with the respective firmware release.
Feature/Change |
Description |
40.44.0208 |
|
General |
This is the initial firmware release of NVIDIA® ConnectX®-8 SuperNIC. ConnectX-8 has the same feature set as ConnectX-7 adapter card. For the list of the ConnectX-7 firmware features, please see ConnectX-7 Firmware Release Notes. The features described here are new features in addition to the ConnectX-7 set. |
Link Speed |
NVIDIA® ConnectX®-8 SuperNIC supports 800Gb/s or XDR IB or 2 x 400GbE link speeds. Note: 800GbE link speed is not supported on a single port. |
Planarized Topology Network |
ConnectX®-8 SuperNIC uses planarized topology network to reach Extended Data Rate (XDR) performance. |
Direct NIC-GPU Datapath |
To read/write data directly from the GPU and to overcome grace CPU PCIe bandwidth issue a direct NIC-GPU datapath is required. To do so, the HCA exposes a side DMA engine as an additional PCIe function which is called “Data Direct”. This additional DMA engine allows vHCA access data buffers using MKEY through it, providing multiple PCIe data path interfaces. Such behavior is needed in a scenario where different memory region requires different PCIe data path, i.e NUMA (Non Uniform Memory Access) systems. A vHCA is allowed to use a Data Direct function if It supports only the following fields: |
Congestion Control |
Congestion Control provides performance isolation when multiple applications running on the same cluster. Additionally, it prevents congestion spreading when there is a slow receiver, reduce latency in the cluster, improves fairness, prevents parking-lot effects and packet's drop in lossy networks. |
Multiple Encapsulation/Decapsulation Operation on a Packet |
This capability enables the encapsulation table to be opened on both the FDB and the NIC tables together. |
Crypto Algorithms |
Extended the role-based authentication to cover all crypto algorithms. Now the |
RoCE: Adaptive Timer |
Enabled ADP timer to allow the user to configure RC or DC qp_timeout values lower than 16. |
Multiple-Window in DPA Mode |
Multi-window capability is now supported in DPA mode. |
Doorbell Less QP |
The new capability enables the user to send a queue without a doorbell record. To create a doorbell less QP/SP, set |
Packet's Flow Label Fields |
The |
ODP Event |
The following prefetch fields are available ODP event: pre_demand_fault_pages, post_demand_fault_pages |
Jump from NIC_TX to FDB_TX |
The user can jump from |
The following are the unsupported features for ConnectX-8 SuperNIC in this firmware version:
Zero Touch Tuning (ZTT)
Transport Layer Security (TLS) handshake
T10 Data Integrity Field (DIF)
Static split 8x100G ConnectX-8 to Spectrum-4 with SM modules
NC-SI Path-Through
Lane margin
Segment on PCIe switch
Hot reset
DRS
LAG Bonding with Q-Affinity
AER on PCIe switch bridge
ISSU