NVIDIA Mellanox MCX4121A-ACU PCIe Card Firmware 14.25.1020

Important Notes:

- Security Hardening Enhancements: This release contains important reliability improvements and security hardening enhancements. Mellanox recommends upgrading your devices firmware to this release to improve the devices’ firmware security and reliability.
- SR-IOV - Virtual Functions (VF) per Port - The maximum Virtual Functions (VF) per port is 127.

Changes and New Feature:

- VSC security includes the mechanisms which will prevent a reasonable host from affecting other hosts from using VSC
- Zero touch RoCE enables RoCE to operate on fabrics where no PFC nor ECN are configured. This makes RoCE configuration a breeze while still maintaining its superior high performance.
- Added support for send opcode operations targeting a SRQ/RMP with the receive WQEs using ODP memory. In case the receive WQE receives an ODP, the device will generate ODP notifications (EQE) and PFAULT will abort CQEs.
- This new capability accelerates the firmware burning process by using Direct Memory Access (DMA) pages
- This new capability accelerates the network to auto-sense the port speed and use it when using a 25/10GbE optical module. Meaning, if the used module is 25GbE but the port is a 10GbE port, the speed used for that network will be 10GbE.
- Enabled Package ID configuration using server strap according OCP 3.0.
- This capability provides a solution for improving user space drivers development, generic user space IO device services.
- Renamed the BOOT_RETRY_CNT1 parameter to BOOT_RETRY_CNT.
- Reduced firmware upgrade time using mlxfwreset tool to ~3 seconds. Using this capability requires enabling PARTIAL_RESET_EN in mlxconfig and using MFT version 4.12.0 and up. The “PARTIAL” refers to not resetting the port modules (which is not mandatory for firmware upgrades).

Bug Fixes:

- Fixed a rare issue that caused the QP to falsely transition into the error state as a result of handling duplicate read/atomic request followed by memory key invalidation.
- Fixed an issue that prevented the user to enable the port after disabling it in the VF NODNIC.
- Enlarged the number of modify fields to 16 to avoid IPv6 header rewrite failure.
- Fixed an issue that prevented IB QP counters for Acks/Responses from working as a results the NACK/OOS counters showed as zero.
- Set the stateless offloads cap to be permanently '1'.

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.