Setting ipg Driver Parameters Using a qfe.conf File
1.Obtain the hardware path names for the qfe devices in the device tree.
Typically the path names and the associated instance numbers will be present in the /etc/path_to_inst file.
#grep qfe /etc/path_to_inst "/pci@1f,2000/pci@2/SUNW,qfe@0,1" 4 "qfe" "/pci@1f,2000/pci@2/SUNW,qfe@1,1" 5 "qfe" "/pci@1f,2000/pci@2/SUNW,qfe@2,1" 6 "qfe" "/pci@1f,2000/pci@2/SUNW,qfe@3,1" 7 "qfe"
In the above lines:
The first part within the double quotes specifies the hardware node name in the device tree.
The second number is the instance number.
The last part in double quotes is the driver name.
In the device path name, the last component after the last / character and before the @ character is the device name.
4The path name before the last component is the parent name.
The comma separated numbers after the @ character at the end represent the device and function numbers, which are together referred to as
To identify a PCI device unambiguously in the qfe.conf file, use the name, parent name, and the
In the first line of the previous example:
Name = SUNW,qfe
Parent = /pci@1f,2000/pci@2
In the second line in the previous example:
Name = SUNW,qfe
Parent = /pci@1f,2000/pci@2
In the third line in the previous example:
Name = SUNW,qfe
4Parent = /pci@1f,2000/pci@2
Unit-address = 2,1
In the fourth line in the previous example:
Configuring the Quad FastEthernet Device Driver Parameters 39