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7 Linux Driver Setup
66
Patching PCI Files (Optional)
To use Red Hat’s kudzu hardware detection utility, a number of files containing PCI vendor
and device information need to be patched with information on the BCM5700 chip. A
patch file (pci.patch) is included for Red Hat 7. Apply the patch by typing the following:
patch -N -pl -d /usr < pci.patch
To run kudzu, type:
kudzu
Unloading and Removing the Driver
1
Bring down all BCM5700 interfaces using ifconfig or ifdown:
for example,
ifdown eth0
2
Unload the driver:
rmmod bcm5700
3
If the driver was installed using RPM, it can be removed using:
rpm -e bcm5700-<version>
Optional Parameters
Optional parameters for the driver can be supplied as command line arguments to the
insmod command. Commonly, these options are specified in a module configuration file: /
etc/modules.conf or /etc/conf.modules. These parameters take the form:
<parameter>=value[,value,...]
where the multiple values for the same parameter are for multiple NICs installed in the
system. All the parameters are listed below.
■
line_speed
Selects the line speed of the link. This parameter is used together with full_duplex to
select the speed and duplex setting of the link. The valid values are:
Note that selecting 1000 Mbps manually is invalid. 1000 Mbps can only be achieved
through autonegotiation.
■
full_duplex
Selects the duplexity of the link. This parameter is used together with line_speed to
select the speed and duplex setting of the link. Note that this parameter is ignored if
line_speed is 0. The valid values are:
0 Autonegotiate (default)
10 10 Mbps
100 100 Mbps
0 half duplex
1 full duplex (default)