NVIDIA Firmware Tools (MFT) Documentation v4.25.0
NVIDIA ConnectX-5 Adapter Cards Firmware Release Notes v16.35.3502 LTS

mlxphyburn – Burning Tool for Externally Managed PHY

Mlxphyburn tool allows the user to burn firmware of an externally managed PHY. The tool burns and verifies a pre-compiled binary PHY firmware image on the PHY’s flash. It is supported only on Linux.

  • ConnectX-3/ConnectX-3 Pro with an externally managed PHY

  • A device that has access to the PHY flash module

  • MLNX_OFED driver (if installed) must be down

  • Access to the device through the PCI interface (pciconf/pci_cr)

  • Firmware version that supports access to an externally managed PHY

    • Version 2_33_5000 and above


# mlxphyburn [-d <device>] [–i Phy_fw_image] b[urn]|q[uery]


-d|--dev <device>

Device which has access to the PHY.

-i|--img <PHY_fw_image>

PHY firmware image.


Display version info.


Display help message.


Burn given PHY image on the device's PHY.


Query PHY FW on device.


If no device is specified, mlxphyburn will attempt to burn the PHY firmware image on all mst devices on the machine.

Burn Example


# mlxphyburn -d /dev/mst/mt4099_pciconf0 -i Firmware_1.37.10_N32722.cld burn -I- attempting to burn PHY Fw on device: /dev/mst/mt4099_pciconf0 -I- Burning...(Process might take a few minutes) -I- Device burned and verified.

Query Example


# mlxphyburn -d /dev/mst/mt4099_pciconf0 q -I- Querying device: /dev/mst/mt4099_pciconf0 Flash Type : Atmel AT25DF041A FW version : 1.37 Image ID : 1.37.10 InterfaceMasters N32722 Apr 14, 2014 12:21:00 Image ROM ID : 0

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