Red Hat ENTERPRISE LINUX 5 - VIRTUAL SERVER ADMINISTRATION, Руководство по установке

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Adding a
qeth
Device
243
22.6.1. Adding a
qeth
Device
First, determine whether the
qeth
device driver modules are loaded.
# lsmod ­| grep qeth
qeth 135240 0
qdio 45360 2 qeth
ipv6 303984 13 qeth
ccwgroup 15104 1 qeth
If the output of the
lsmod
command shows that the modules are not loaded, you must run the
modprobe
command to load them:
# modprobe qeth
Next, create a
qeth
group device.
# echo read_device_bus_id , write_device_bus_id ,
data_device_bus_id > ­/sys/bus/ccwgroup/drivers/qeth/group
Due to the length of this command, it has been broken into two lines.
In the following example,
read_device_bus_id
is 0.0.0600,
write_device_bus_id
is 0.0.0601,
and
data_device_bus_id
is 0.0.0602. The device is a z/VM virtual NIC and the IP address to be
assigned to this interface is 192.168.70.69.
# echo 0.0.0600,0.0.0601,0.0.0602 > ­/sys/bus/ccwgroup/drivers/qeth/group
Next, verify that the
qeth
group device was created properly:
# ls ­/sys/bus/ccwgroup/drivers/qeth
0.0.0600 0.0.09a0 group notifier_register
You may optionally add a portname. First, you must check to see if a portname is required:
# cat ­/sys/bus/ccwgroup/drivers/qeth/0.0.0600/portname
no portname required
The response indicates that you do not need to provide a portname.
To add a port name, check that the devices are offline, and then run the following command:
Note
The device(s) must be offline when you add a portname.
# echo portname > ­/sys/bus/ccwgroup/drivers/qeth/0.0.0600/portname
Next, bring the device back online:
# echo 1 > ­/sys/bus/ccwgroup/drivers/qeth/0.0.0600/online
Then verify the state of the device: