Firmware to change MCX354A‑TCBT VPI Card to Ethernet Mode

Infrastructure & Networking Software And Drivers Mellanox OFED
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1

Hi folks.

I have a Mellanox MCX354A‑TCBT (ConnectX‑3 VPI dual‑port QSFP+). I need to flash it to Ethernet‑only mode.

The NVIDIA firmware portal only shows FlexBoot ROM bundles (e.g., fw-ConnectX3-rel-2_42_5000-MCX354A-FCB_A2-A5-FlexBoot-3.4.752) and does not show the full‑image .mlx firmware files.

I need the full‑image firmware file:
fw-ConnectX3-rel-2_42_5000-MCX354A-FCBT-Ax.mlx

This is the complete .mlx image that includes firmware, VPD, Option ROM, and PSID metadata.
Without this file, the card cannot be converted from VPI mode to Ethernet‑only mode.

Is it possible to provide access to the .mlx full‑image firmware for MCX354A‑FCBT (version 2.42.5000), or advise how to obtain it?

Many thanks

Declan

2

Hello,

To change the protocol type on a ConnectX-3 card, you can use the connectx_port_config script, which is included in the MLNX_OFED driver package.

View current port configuration for all ConnectX devices:

/sbin/connectx_port_config -s

Change the port type:

/sbin/connectx_port_config [-d|--device <PCI device id>] -c|--conf <port1,port2>
/sbin/connectx_port_config -d 03:00.0 -c eth,eth

Please note that ConnectX-3 cards have reached end-of-life and are no longer supported, so we’re unable to provide images or additional materials for this product.

Best regards,
Viki