NVIDIA Mellanox MCX4411A-ACAN PCIe Card Firmware 14.21.1000

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:

- Raised the network link only with phase greater than 15 ticks to improve signal integrity
- Extended measurement test between 2 similar RX configurations
- Moved the data path to use the second input buffer to improve signal integrity
- Added support for new chassis MC OEM commands which allowed dynamically configuring rate limit and bandwidth share, per host and physical function
- Enables the usage of a dual port Virtual HCA (vHCA) to share RDMA resources (e.g., MR, CQ, SRQ, PDs) across the two Ethernet (RoCE) NIC network ports and display the NIC as a dual port device.
- Added QPDPM register to support dynamic mapping between DSCP and priority
- Added trust level for QoS prioritization according to the DSCP or PCP
- Added ingress buffer management for: ingress traffic mapping to a buffer according to priority and buffers sizes and lossless parameters
- Improved steering rules update rate to up to 50K rules per sec.
- Enabled Windows SR-IOV Enhanced eIPoIB (without Secure Connection) for Windows-over-Windows setups.
- crdump operation takes a snapshot of the device’s crspace dword-bydword. It enables the driver to collect debug information upon firmware failure.
- Secure Firmware Updates provides devices with the ability to verify digital signatures of new firmware binaries, in order to ensure that only officially approved versions are installed on the devices.
- Changed the default FEC mode for cables with attenuation 16 and below from RS to FC.
- Enabled ECN (CongestionControl) by default for all priorities on Ethernet ports.

Bug Fixes:

- Fixed an issue related to RDMA_CM driver that might have caused the QP Rate Limit to be activate unexpectedly and reduce the bandwidth significantly on this QP.
- Fixed an issue that caused low throughput when ECN was enabled in a many-toone scenario.
- Fixed an issue that wrongly reported the maximum temperature in a setup as the current temperature regardless of the actual temperature.
- Fixed Virtual Addressing Capability incorrect report in NC-SI (Sideband).
- Improved RX sensitivity per Vcore.
- Disabled the option to write to the protected modules to avoid receiving NACK upon module initialization.
- Enabled cold_flicks reset when sending invalidate_all command to invalidate all the ECs.
- SR-IOV min & max rate limiter can only support up to 64 VFs per port.
- Fixed the issue where ECN did not function as expected when the number of QPs > ~500 per host
- Fixed the issue where when using UD RoCE multicast traffic over SR-IOV, packets were scattered to all the attached QPs in the e-sw (PF and its VFs) and not only on the vport that was specified in the e-se FDB.

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.