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Setting – Sun Microsystems Sun Quad User Manual

Page 51

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Appendix B

Configuring the Quad FastEthernet Device Driver Parameters

37

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.

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

# 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"