NVIDIA Mellanox MCX631432AN-ADAB SmartNIC Firmware 26.29.1016

Changes and New Features:

- Added the option to allow applications to build their own QoS tree over the NIC hierarchy by connecting QPs to responder/requestor Queue Groups.
- Improved NRZ link performance (RX algorithm).
- Improved NRZ link-up time (25G50G100G speeds).
- Added support for Direct Packet Placement (DPP). DPP is a receive side transport service in which the Ethernet packets are scattered to the memory according to a packet sequence number (PSN) carried by the packet, and not by their arrival order. To enable DPP offload, the software should create a special RQ by using the CREATE_RQ command, and set DPP relevant attributes.
- Added a new counter per vPort that counts the number of packets that reached the Ethernet RQ but cannot fit into the WQE due to their large size. Additionally, we added the option to control if such packet will cause “CQE with Error” or “CQE_MOCK”.
- ignore_flow_level is now enabled by the TRUST LEVEL access registry.
- [Beta] Enabled the capability to allow Virtual Functions to send Pause Frames packets.
- Added support for the cq_overrun counter. The counter represents the number of times CQs enter an error state due to overflow that occur when the device tries to post a CQE into a full CQ buffer.
- Hardware steering dump output used for debugging and troubleshooting.

Bug Fixes:

- Fixed the issue that prevented "iperf3" from having traffic for virtio hardware offload solution in Windows.
- Fixed an issue that prevented "iperf3 -l 512" from having traffic for virtio hardware offload solution.
- Changed the default value of DCQCN's NP parameter min_time_between_cnps to 4 on all devices to support larger scalability of cluster.
- When MKEY_BY_NAME is enabled by NVCONFIG and a large number of VFs are configured, VM restart (VF/PF FLR) will take longer than when MKEY_BY_NAME is disabled
- TCP/IP traffic received by the guest kernel with version higher than 4.10 is unstable because of corrupted GSO header. The following message can be seen from dmegs: "bad gso: type: xx, size: xxxx".
- Fixed an issue that resulted in low performance after enabling the RoCE Accelerator capability. The fix is available when all ports are set as Ethernet.
- On rare cases, a fatal error related to errors from the PCI transport layer might be reported during FLR.
- Fixed an issue that caused caused the device to go to dead IRISC as one of the firmware semaphores could not be released when a speed change or port state change was triggered. 
- On very rare occasions, a raw BER of 10e-12 might be experienced.

About Network Adapter Drivers:

When connected, the operating system usually installs a generic driver that helps the computer to recognize the newly attached device.

However, proper software must be applied if you want to make use of all features that the network adapter has available. This task also allows computers to properly recognize all device characteristics such as manufacturer, chipset, technology, and others.

Updating the adapter's drivers and utilities version might improve overall performance and stability, increase transfer speeds, fix different compatibility problems and several network-related errors, as well as bring various other changes.

To install this release, simply get the package, extract it if necessary, run the setup, and follow the instructions displayed on-screen. When done, don't forget to perform a system restart and reconnect the network adapter to make sure that all changes take effect properly.

Without further ado, if you intend to apply this version, click the download button and install the package. Moreover, check with our website as often as possible so that you don't miss a single new release.

  It is highly recommended to always use the most recent driver version available.

Try to set a system restore point before installing a device driver. This will help if you installed an incorrect or mismatched driver. Problems can arise when your hardware device is too old or not supported any longer.