intctl.1m (2010 09)

i
intctl(1M) intctl(1M)
Example:
INTCTL_DRIVER_WEIGHTS
graf 300
2. INTCTL_HW_IGNORE
Each line after the above string is expected to be of the form hw_path intr_id . hw_path is a string
corresponding to the hardware path of the I/O card and intr_id is an integer corresponding to the
interrupt ID. The specified I/O card and the interrupt ID combination is ignored (that is, will not be
migrated) while balancing interrupts. If interrupt ID is
-1, then all the interrupt IDs associated with
that I/O card are ignored.
The
-i io:hw_path:intr_id option can be used to specify more I/O cards to be ignored temporarily.
NOTE: If an I/O card shares the interrupt line with another I/O card whose driver is non MP-safe,
then the interrupt of this I/O card cannot be migrated.
intctl will display the following message if
this situation happens (the actual hardware path will be different):
NOTE: I/O card <hardware_path> is sharing the interrupt line
with another I/O card which is claimed by a non MP-safe driver.
Add the line ’hardware_path -1’ (hardware_path intr_id) to
INTCTL_HW_IGNORE section of the configuration file /etc/intctl.conf
to avoid getting this message.
This hardware_path entry needs to be made in the
INTCTL_HW_IGNORE section of the
/etc/intctl.conf
configuration file. Specifying this entry will avoid selecting this card for
further migrations while balancing interrupts. There is no impact on the system or balancing of inter-
rupts if this activity is not performed. The only impact will be an interrupt migration failure message
in
/var/adm/syslog/syslog.log
file and the display of the above intctl message.
Example:
INTCTL_HW_IGNORE
1/2/1/0 2
1/3/1/0 -1
3. INTCTL_CPU_IGNORE
Each line after the above string is expected to be of the form hw_path . hw_path is a string
corresponding to the hardware path of the CPU that should be ignored while balancing interrupts.
These CPUs will not be affected by balancing of interrupts.
The -i cpu:hw_path option can be used to ignore more CPUs temporarily.
Example:
INTCTL_CPU_IGNORE
122/1
4. INTCTL_DRV_IGNORE
Each line after the above string is expected to be of the form driver_name . driver_name is a string
corresponding to the driver name of the driver that should be ignored while balancing interrupts. Any
I/O card claimed by this driver will not be selected for interrupt migrations while balancing interrupts
(irrespective of the balancing algorithm chosen).
The -i drv:driver_name option can be used to ignore more drivers temporarily.
Example:
INTCTL_DRV_IGNORE
ipmi
8 Hewlett-Packard Company − 8 − HP-UX 11i Version 3: September 2010