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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.
The 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 unit-address.
To identify a PCI device unambiguously in the qfe.conf file, use the name, parent
name, and the unit-address for the device. Refer to the pci(4) man page for more
information about the PCI device specification.
In the first line of the previous example:
Name = SUNW,qfe
Parent = /pci@1f,2000/pci@2
Unit-address = 0,1
In the second line in the previous example:
Name = SUNW,qfe
Parent = /pci@1f,2000/pci@2
Unit-address = 1,1
In the third line in the previous example:
Name = SUNW,qfe
Parent = /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