Spectrum or Switch-IB 2 Switch Systems

Upon first time flash burning, the GUIDs and VPD of the device are required to be set on the flash. The sections below demonstrate two methods of burning a new device in order to set these initial settings. Subsequent firmware updates will not change these settings.

For information regarding GUIDs, MACs and VPD, please refer to Accessing Remote InfiniBand Device by Direct Route MADs.

Burning the Spectrum/Switch-IB 2 Device 

Method 1: Generating Firmware with Specific GUIDs and MACs and Burning it on Device

In order to burn a new Spectrum/Switch-IB 2 device, follow the steps below:

1. Generate the initial image with the correct GUIDs and VPD for the specific device using the mlxburn tool. The generated image occupies full flash size.

   # mlxburn -fw FW/fw-Spectrum.mlx -c FW/MCB194A-FCA_A1.ini -wrimage fw-Spectrum-MCB194A- FCA_A1.bin -base_guid 0x0002c903002ef500 -base_mac 0x02c90ef500 -vpd_r_file ./vpd_r_data.bin
   

2. Disable Write protection.

   # flint -d /dev/mst/mt585_pciconf0 -override_cache_replacement hw set Flash0.WritePro- tected=Disabled
   

3. Burn the entire flash.

   # flint -d /dev/mst/mt585_pciconf0 -i ./fw-Spectrum-MCB194A-FCA_A1.bin -override_cache_re- placement -ignore_dev_data -nofs -allow_psid_change -y b
   

4. Set Write protection.

   # flint -d /dev/mst/mt585_pciconf0 -override_cache_replacement hw set Flash0.WriteProtected=Top,8-SubSectors
   

5. Enable flash quad SPI IO operations.

   # flint -d /dev/mst/mt585_pciconf0 -override_cache_replacement hw set QuadEn=1
   

Method 2: Generating a Firmware Image with Blank GUIDs, Burning and Setting GUIDs on the Device

In order to burn a new Spectrum/Switch-IB 2 device, follow the steps below:

1. Generate the initial image VPD for the specific device using the mlxburn tool. The generated image occupies full flash size.

   # mlxburn -fw FW/fw-Spectrum.mlx -c FW/MCB194A-FCA_A1.ini -wrimage fw-Spectrum-MCB194A- FCA_A1.bin -vpd_r_file ./vpd_r_data.bin
   

2. Disable Write protection.

   # flint -d /dev/mst/mt585_pciconf0 -override_cache_replacement hw set Flash0.WritePro- tected=Disabled
   

3. Burn the entire flash using the flint tool.

   # flint -d /dev/mst/mt585_pciconf0 -i ./fw-Spectrum-MCB194A-FCA_A1.bin -ocr -ignore_dev_data -nofs -allow_psid_change -y b
   

4. Set device manufacture GUIDs and MACs.

   # flint -d /dev/mst/mt585_pciconf0 -ocr -guid 0xe41d2d0300570fc0 -mac 0x0000e41d2d570fc0 smg
   

5. Set device GUIDs and MACs.

   # flint -d /dev/mst/mt585_pciconf0 -ocr -guid 0xe41d2d0300570fc0 -mac 0x0000e41d2d570fc0 sg
   

6. Set Write protection on the last sector.

   # flint -d /dev/mst/mt585_pciconf0 -ocr hw set Flash0.WriteProtected=Top,8-SubSectors
   

7. Enable flash quad SPI IO operations.

   # flint -d /dev/mst/mt585_pciconf0 -ocr hw set QuadEn=1
   

   
   

   1. To view flash settings:

      # flint -d /dev/mst/mt53000_pciconf0 -ocr hw query
      

   2. To view assigned GUIDs:

      # flint -d /dev/mst/mt53000_pciconf0 -ocr q
      

   3. To change a GUID after the initial burn:

      # flint -d /dev/mst/mt53000_pciconf0 -ocr -guid 0xe41d2d0300570fc0 sg
      

   4. To change a MAC after the initial burn:

      # flint -d /dev/mst/mt53000_pciconf0 -ocr -mac 0x0000e41d2d570fc0 sg
      

   5. To change a GUID and derive MAC from it after the initial burn, run:

      # flint -d /dev/mst/mt53000_pciconf0 -ocr -uid 0xe41d2d0300570fc0 sg
      

Last updated: June 03, 2026