Device Overview
The NVIDIA Mellanox MCX4431M-GCAN is a PCIe Card designed for high-performance computing and networking. It is an efficient PCIe Gen 3.0 support card that provides 100 Gb/s InfiniBand enhanced acceleration and 100 Gb/s Ethernet for HPC, Cloud, Storage, and Artificial Intelligence end-to-end connectivity solutions. The card firmware version is 14.31.1014.
List of Features:
- ITE: Integrated Telemetry Engine improving serviceability while keeping low latency
- Data acceleration engines for eliminating network and CPU operation bottlenecks
- Smart Scheduling mechanisms for zero-packet loss guarantee
- Parallel message workloads that toggle multiple Non-Volatile Memory Express (NVMe) drives
- Simplified management and monitoring with scalable and secure network discovery
Specifications:
- ConnectX-6 DX ASIC
- Single port QSFP28
- HDR100/EDR InfiniBand or up to 100G Ethernet
- PCIe Gen 3.0 x16 host connectivity
- CPCI-e 3.0x16 form-factor adapter
Using Technologies:
- InfiniBand Enhanced Data Rate (EDR)
- Remote Direct Memory Access (RDMA)
- Ethernet Routers
- NVMe-oF (Storage Over Fabrics)
- Virtual Extensible LAN (USE)
Known Issues with this Device:
- The firmware 14.31.1014 had an issue in previous firmware versions where IRQ masking caused random Kernel PANICS on Linux systems. Several Linux drivers affected need to be updated to prevent this trigger kernel crash.
- Sometimes this device hangs like no output from "mlxconfig -d 'DEVICE' qos show limit"
- Expenses up to six minutes to stabilize sometimes once powered on
Troubleshooting:
- Check your PCIe card and system BIOS compatibility version; update if required.
- Make sure there is enough power supply.
- Ensure that the connective QSFP cable supports the required speed.
- To prevent panics on the Linux system, ensure to use an available linux driver version containing fix.
- Some 'hung' issues correctable by removing and re-installing the devices in their corresponding slot.
Driver Information:
The driver name for NVIDIA Mellanox MCX4431M-GCAN PCI Card is mlx5_core” or mlx5_core”.
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