User manual

Installation

Rev 1.2

Mellanox Technologies

Figure 11: I2C Cable Connected to IS5024

With the switch connected to a computer through the MTUSB, it is now possible to reprogram the

SPI Flash memory.

5.5.1.3 Instructions for Reprogramming Through the I2C Port

1. Make sure that:

•the MTUSB I2C cable is connected to the switch and USB cable is connected to a computer

•MFT is running on the computer

•"mtusb-1" mst device appears in "mst status"

2. Set the switch I2C switch to allow access by running:

> mlxi2c -d /dev/mst/mtusb-1 -s IS5023 p /IS4

3. Run the burn command:

flint -d /dev/mst/mtusb-1 -i ./fw-IS4-rel-7_4_0-Q_A1.bin -qq b

4. Power cycle the switch, by unplugging and re-plugging the power cord, to load the new firm-

ware.

5.5.2 How to Get Mellanox Firmware Tools (MFT)

Mellanox Firmware Tools (MFT) and documentation are available for download via

http://www.mellanox.com > Support > Download Firmware Tools.

The MFT kit includes:

• mlxburn

•flint

•spark

•IBspark

• debug utilities

See “Related Documentation” on page 8.

5.5.3 Open SM

To manage the Mellanox switch system using OFED, download Mellanox Open Fabrics from

http://www.mellanox.com > Support > InfiniBand Software and Drivers.

Be sure to read and follow all of the instructions regarding the installation and use of these tools.

IS5024